Vibration-dampers and shock-absorbers (F16F7)

F16F7                 Vibration-dampers; shock-absorbers (using fluid f16f0005000000, f16f0009000000; specific for rotary systems f16f0015100000)(1163)
Single action shock absorber with breakable elements // 2642190
FIELD: protective devices.SUBSTANCE: invention relates to protective devices, for example shock absorbers, used in explosive facilities. Single action shock absorber with breakable elements contains a body, elastic and damping elements, additionally contains a rod, in the upper part of which, perpendicular to its axis, a fixed stop in the form of a circular plate is rigidly fixed, to the lower part of which the damping base is fastened with screws, and co-axially with the rod a bushing made in the form of a truncated cone is rigidly fixed to the damping base. Truncated cone lower base is connected to the base, and the single action element is supported against truncated cone upper base, made in the form of a hub of brittle, collapsing material, for example porcelain, which is pressed from below by a hub-type clamping element with grooves for fixing an elastic part in the form of a conical spring turned by its upper base towards the bushing-type clamping element. Conical spring lower base is fixed in the grooves of the damping base by means of injection polyurethane, wherein fixing of the bushing-type clamping element is implemented by means of latches mounted on the surface of the rod. Inside the bushing, made in the form of a truncated cone, wherein the bottom base of the truncated cone being connected to the base, and in the of the truncated cone upper base a single-action element is pressed against, an elastic conical element with an outer surface congruent and equidistant to the sleeve is located axially symmetric. Rod is made resiliently damping, consisting of co-axially arranged bushings and rods, wherein the bushings are made of an elastic material, and the rods of a vibration damping material, for example polyurethane.EFFECT: invention increases reliability of operation of explosion-proof devices at emergency explosion at site.1 cl, 1 dwg

Refractory polymer composition // 2640769
FIELD: chemistry.SUBSTANCE: invention relates to the refractory polymer composition suitable for use when applying the coating on the treated articles containing thermoplastic polymer containing vinyl acetate, and an unsaturated elastomer containing double bonds as polymeric components, where the polymer components are present in the form of a homogeneous polymer blend, and where a composite matrix is formed, vulcanized only with the use of sulfur or a crosslinking system containing sulfur, where the sulfur crosslinking system is distributed throughout the matrix and fully penetrates into the matrix, and at least one flame retardant or a combination of flame retardants. The invention further relates to articles obtained from such a composition and to composite elements coated with the composition as well as to the method for their preparation.EFFECT: producing compositions for protecting a dynamically tense component with a coating of this composition, so that the aggregate component is sufficiently refractory, in particular, complies with the standard for fire safety CEN TS 45545-2 without rendering noticeable adverse effects by the specified coating on the dynamic properties of the composite element during its service life.38 cl, 16 dwg, 5 tbl, 5 ex

Operator's anti-vibration platform // 2640493
FIELD: construction.SUBSTANCE: anti-vibration platform comprises a rigid frame, a floor, and elastic elements joining the frame with the base. The elastic element consists of a compression spring interacting with the housing base and the pendulum suspension. The pendulum suspension is made in the form of a threaded pin connected at one end to a support arm, and at the other - to a thrust washer of an elastic material and a nut. The nut is connected with a bushing interacting with the upper end of the spring. The lower end of the spring rests on the base. The base consists of an upper and a lower plate connected by vertical plates. A bushing of a composite friction material is fixed on the upper plate. The spring is made as a cylindrical helical one and consists of two parts with counter-directed ends. The first spring part has coils of the rectangular section with rounded edges, and the second part is made hollow. The counter-directed end of the first part is placed in the cavity of the second part. The gaps of the segment profile of the contacting spring parts are filled by an antifriction lubricant. A sealing collar is mounted at the end of the second spring part to prevent the lubricant leakage. The first part of the helical spring is covered by a tube of a damping material. The gaps between the spring and the tube are filled with friction material crumbs.EFFECT: increasing the vibration isolation effectiveness.4 dwg

Vibrational insulating device for operator // 2640156
FIELD: machine engineering.SUBSTANCE: vibration isolation device contains a housing, a screw-connected nut located in it and rod mechanism that connects the nut to a vibration-insulating object. The nut has a groove of T-shaped profile. The profile of the rod of the rod mechanism corresponds to the profile of the groove and is intended for interaction with it. The elastic element, installed between the insulated object and the base, is made in the form of a cylindrical spring with a built-in dry friction damper. The spring consists of two parts with on-coming ends. The first spring part has rectangular section turns with rounded edges, and the second part is made hollow. The on-coming end of the first part is located in the cavity of the second part. The segmental profile gaps of the contacting spring parts are filled with antifriction lubricant. The sealing collar is mounted on the end of the second part of the spring. The first part of the screw spring is enclosed by the tube of polyurethane. The gaps between the spring and the tube are filled with crumb of friction material.EFFECT: raised efficiency of oscillation damping.2 dwg

ethod of adjustment of vibration isolation system operating modes // 2640155
FIELD: machine engineering.SUBSTANCE: method of adjustment of vibration isolation system operating modes includes adjusting the oscillations of the lever system. A spring and a two-link articulation linkage are installed between the object of protection and the base. The links are connected by one end in the central articulation, to which an additional mass is also fixed. The accelerometer readings are recorded and the angle between the levers is adjusted using the control unit. The mass of the vibration protection system is changed. The spring, located between the object of protection and the base, is made cylindrical screw with an integrated damper. The spring consists of two parts with on-coming ends. The first spring part has rectangular section turns with rounded edges, and the second part is made hollow. The on-coming end of the first part is located in the cavity of the second part. The segmental profile gaps of the contacting spring parts are filled with antifriction lubricant. The sealing collar is mounted on the end of the second part of the spring. The first part of the helical spring is enclosed by the tube of a damping material. The gaps between the spring and the tube are filled with crumb of friction material.EFFECT: increasing of the effectiveness of the vibration isolation system by increasing the damping in the system.2 dwg

Vibration isolation system with controlled parameters // 2640154
FIELD: machine engineering.SUBSTANCE: vibration isolation system contains a control unit for oscillation of the leverage, installed between the object of protection and the base, a spring and a two-link articulation linkage. The links are connected by one end in the central articulation, to which an additional mass is also fixed. The spring, located between the object of protection and the base, is made cylindrical screw with an integrated damper. The spring consists of two parts with on-coming ends. The first spring part has rectangular section turns with rounded edges, and the second part is made hollow. The on-coming end of the first part is located in the cavity of the second part. The segmental profile gaps of the contacting spring parts are filled with antifriction lubricant. The sealing collar is mounted on the end of the second part of the spring. The first part of the helical spring is enclosed by the tube of a damping material. The gaps between the spring and the tube are filled with crumb of friction material.EFFECT: increasing of the effectiveness of the vibration isolation system by increasing the damping in the system.2 dwg

Combined spring of kochetov with damping element // 2640152
FIELD: machine engineering.SUBSTANCE: combined spring contains a cylindrical helical spring, consisting of two parts with on-coming ends. The first spring part has rectangular section turns with rounded edges, and the second part is made hollow. The on-coming end of the first part is located in the cavity of the second part. The segmental profile gaps of the contacting spring parts are filled with antifriction lubricant. The sealing collar is mounted on the end of the second part of the spring. The first part of the helical spring is enclosed by the tube of a damping material. The gaps between the spring and the tube are filled with crumb of friction material. Inside the combined spring, the damping element in the form of a vibration damping spring is axially symmetric and coaxial installed. The spring contains a body made of helical hollow elastic steel tube. The additional elastic steel tube is installed inside the body with a gap. A friction element is located in the gaps between the tubes. A helical solid elastic pin is set coaxially to the body. The friction element is made in the form of a granular backfill made of sintered copper-based friction material.EFFECT: increase in the efficiency of vibration isolation in resonance mode.2 dwg

High capacity combined vibration isolator of koshetov // 2640151
FIELD: machine engineering.SUBSTANCE: vibration isolator contains a frame made in the form of two supporting horizontal plates, rested on the top covers of left and right elastic members, respectively. The horizontal plates are rigidly connected to the vertical plates, which are connected to each other by a base plate in the lower part of the frame. A platform for a vibroisolated object is mounted on the base plate through a vibration damping spacer and a vertical stand. The left elastic element is made in the form of a cylindrical helical spring with an integrated damper. The spring consists of two parts with on-coming ends. The first spring part has rectangular section turns with rounded edges, and the second part is made hollow. The on-coming end of the first part is located in the cavity of the second part. The segmental profile gaps of the contacting spring parts are filled with antifriction lubricant. The right elastic element is made in the form of a vibration damping spring, containing a body made of a helical hollow elastic steel tube. The additional elastic steel tube is installed inside the body with a gap. A friction element is located in the gaps between the tubes. A helical solid elastic pin is set coaxially to the body.EFFECT: increasing the efficiency of vibration isolation at resonance.1 dwg
Shock-absorbing spring of kochetov with additional damping element // 2640150
FIELD: machine engineering.SUBSTANCE: spring contains a body made of helical hollow elastic steel tube. The additional elastic steel tube is installed inside the body with a gap. A friction element is located in the gaps between the tubes. A helical solid elastic pin is set coaxially to the body. The friction element is made in the form of a granular backfill made of sintered copper-based friction material. The combined spring is located inside the vibration damping spring. The spring is made as a cylindrical screw and contains two parts with opposite directed ends. The first spring part has rectangular section turns with rounded edges, and the second part is made hollow. The on-coming end of the first part is located in the cavity of the second part. The segmental profile gaps of the contacting spring parts are filled with antifriction lubricant. The sealing collar is mounted on the end of the second part of the spring. The first part of the helical spring is enclosed by the tube of a damping material. The gaps between the spring and the tube are filled with crumb of friction material.EFFECT: increase in the efficiency of vibration isolation in resonance mode.2 dwg
Rubber-metal vibration insulating device // 2639361
FIELD: machine engineering.SUBSTANCE: device has internal and external tubular profiles connected in its upper part to a plug made in the form of a bushing. The vibration isolator is in the form of coiled spring with a flange. A viscoelastic shell is installed in the gap between the tubular profiles and connected by hot vulcanization to the bushing, the spring and the flange. The spring is permanently connected to the bushing and the flange by means of screw grooves made thereon and secured in connection places therewith by fixing elements which are joined by means of hot vulcanization with viscoelastic shell. An additional flexible element in the form of spring with dry friction damper is mounted between the upper bushing and the lower flange. The spring consists of two parts with on-coming ends. The first spring part has rectangular section turns with rounded edges, and the second part is made hollow. The opposite directed end of the first part is located in the cavity of the second part. The segmental profile gaps of the contacting spring parts are filled with antifriction lubricant. A sealing collar is mounted on the end of the second part of the spring. The first part of the screw spring is enclosed by the tube of a damping material. The gaps between the spring and the tube are filled with crumb of friction material.EFFECT: increased efficiency of vibration isolation in resonance mode.2 dwg

Combined vibration isolator by kochetov // 2639357
FIELD: machine engineering.SUBSTANCE: vibration isolator consists of an elastomer array of a toroidal shape. The array is vulcanized to fastening plates. There are two sealed cavities inside the array. A spiral coil spring is installed in one cavity. The spring consists of two parts with on-coming ends. The first spring part has rectangular section turns with rounded edges, and the second part is made hollow. The facing end of the first part is located in the cavity of the second part. The segmental profile gaps of the contacting spring parts are filled with antifriction lubricant. The packing seal is mounted at the end of the second spring part to prevent the lubricant leakage. The first part of the spring is enclosed by the tube of a damping material. The gaps in the first part of the spring covered by the tube of damping material are filled with crumble of friction material.EFFECT: providing constant rigidity and damping characteristics, improving efficiency of vibration isolation in resonance mode.2 dwg

Vibration isolator combined with built-in rubber-metal elastic element // 2639356
FIELD: machine engineering.SUBSTANCE: vibration isolator contains a stack of alternating elastic and metal plates with holes covered by a combined spring. The stack and the spring are located between the lid and the base of the vibration isolator. Locks enter holes of elastic plates and are fixed in metal plates. The locks of one metal plate are evenly distributed between the facing locks of another metal plate. The locks are in the form of rods with middle part fixed in metal plates. The spring is made helical with built-in damper and consists of two parts with opposite ends. The first spring part has rectangular section turns with rounded edges, and the second part is made hollow. The opposite directed end of the first part is located in the cavity of the second part. The segmental profile gaps of the contacting spring parts are filled with antifriction lubricant. A sealing collar is mounted on the end of the second part of the spring. The first part of the screw spring is enclosed by the tube of a damping material. The gaps between the spring and the tube are filled with crumb of friction material.EFFECT: increased efficiency of vibration isolation in resonant mode by increasing the damping in the system.3 dwg

Combined vibration isolator by kochetov // 2639348
FIELD: machine engineering.SUBSTANCE: vibration isolator contains a frame made in the form of two supporting horizontal plates connected by vertical rods. The upper horizontal plate rests on the top cover of the helical spring and is rigidly connected to the cover by means of fastening elements. The lower horizontal plate rests on an elastic damping element. The helical spring and the elastic damping element are mounted on a common base. Above the bottom horizontal plate is there is a vibration damping gasket fixed for installing on a vibration-insulated object. The helical spring is made as a cylindrical screw and contains two parts with opposite directed ends. The first spring part has rectangular section turns with rounded edges, and the second part is made hollow. The opposite directed end of the first part is located in the cavity of the second part. The segmental profile gaps of the contacting spring parts are filled with antifriction lubricant. The elastic damping element is made in the form of a vibration damping spring, containing a body made of a helical hollow elastic steel tube. An additional elastic steel tube is installed inside the body coaxially with a gap. A friction element is located in clearances between the tubes. A screw solid elastic pin is set coaxially to the body.EFFECT: increased efficiency of vibration isolation in resonance mode.1 dwg

Vibration insulating system // 2638366
FIELD: machine engineering.SUBSTANCE: proposed vibration insulation system comprises coaxial rod supporting an elastic element and a slide moving vertically along said rod between stroke limiters, levers and springs. The levers with cantilever parts on which compensating masses are arranged are hinged to the springs. The elastic element is made in form of cylindrical helical spring and consists of two portions with mutually opposite ends. The first spring part has rectangular section turns with rounded edges, and the second part is made hollow. The opposite directed end of the first part is located in the cavity of the second part. The segmental profile gaps of the contacting spring parts are filled with antifriction lubricant. The packing seal is mounted at the end of the second spring part to prevent lubricant leakage. The first part of the spring is enclosed by the tube of a damping material. The gaps in the first part of the spring covered by the tube of damping material are filled with crumble of friction material.EFFECT: increased efficiency of vibration isolation due to reduction of dynamic forces of inertia acting on protected object from the bearing elastic element side.2 dwg
Dynamic vibration damper // 2638339
FIELD: machine engineering.SUBSTANCE: dynamic vibration damper contains a spherical shell placed in the damping body cavity made in the form of parallelepiped. At least one ball is placed in the spherical shell. Between the walls of the damping body and the spherical shell there are elastic elements installed in the equatorial region of the spherical shell. The elastic elements are made in the form of a spring with an integrated damper. The spring is made as a cylindrical screw and contains two parts with opposite directed ends. The first spring part has rectangular section turns with rounded edges, and the second part is made hollow. The opposite directed end of the first part is located in the cavity of the second part. The segmental profile gaps of the contacting spring parts are filled with antifriction lubricant. The packing seal is mounted at the end of the second spring part to prevent lubricant leakage. The first part of the screw spring is enclosed by the tube of a damping material. The gaps in the first part of the helical spring which is covered by the tube of damping material, are filled with a crumble of friction material.EFFECT: increased efficiency of vibration damping by reducing side forces on the damping body by increasing damping in the system.2 dwg

Double-acting shock absorber // 2638331
FIELD: machine engineering.SUBSTANCE: double-acting shock absorber comprises plates, springs and an axle. The springs are tightly fitted on the axle and fixed by one end on plates, respectively. The plates are mounted on the axle for turning. The springs have different rigidity. At least one spring is made of wire of rectangular section. The axle is made with a radial groove. The radial groove is made in form of a clamp.EFFECT: simplified design and improved reliability.5 cl, 3 dwg
Spatial spring vibration isolator by kochetov with built-in damper // 2637571
FIELD: machine engineering.SUBSTANCE: vibration isolator comprises a base, a vertical rod, an elastic element and a hinge for connecting the string to an elastic element or a vibration-isolating object. The hinge is an intermediate support and control cross-shaped element. Resilient element is made in form of cylindrical helical spring and consists of two portions with mutually opposite ends. The first spring part has rectangular section turns with rounded edges, and the second part is made hollow. The opposite directed end of the first part is located in the cavity of the second part. The segmental profile gaps of the contacting spring parts are filled with antifriction lubricant. The packing seal is mounted at the end of the second spring part to prevent the lubricant leakage. The first part of the spring is enclosed by the tube of a damping material. The gaps in the first part of the spring covered by the tube of damping material are filled with a crumble of friction material.EFFECT: increasing the efficiency of vibration isolation in resonance mode and increasing the sensitivity of the vibration isolator to horizontal movements.7 dwg
Combined vibration isolator with washer mesh damper // 2637570
FIELD: machine engineering.SUBSTANCE: spring is made cylindrical and consists of two parts with oppositely directed ends. There are supporting rings on the spring supporting coils. The first spring part has rectangular section turns with rounded edges, and the second part is made hollow. The opposite directed end of the first part is located in the cavity of the second part. The segmental profile gaps of the contacting spring parts are filled with antifriction lubricant. The packing seal is mounted at the end of the second spring part to prevent the lubricant leakage. The first part of the screw spring is enclosed by the tube of a damping material. The gaps in the first part of the helical spring which is covered by the tube of damping material, are filled with a crumble of friction material. Two opposite washer mesh dampers are connected to supporting rings of the spring by means of their bases. Main mesh resilient element of each damper is fixed by lower and upper pressing washers. The lower washer is connected to the base made in form of plate with fastening holes. Upper pressure washer is connected to centrally located piston covered with a gap by a coaxially arranged sleeve connected to the base. An elastic element is positioned between lower end of the piston and the sleeve bottom.EFFECT: increased efficiency of vibration isolation in resonance mode.1 dwg

Equifrequent package of elastic elements by kochetov // 2637568
FIELD: machine engineering.SUBSTANCE: package of elastic elements contains a platform for installing vibration-insulated object and a base. In the center and perpendicular to the platform the rod with threaded shank and nut is fixed. The package of elastic elements consists of three vibration insulators made of plate springs with upper and lower horizontal bases. Outer vibration isolator is fastened by means of fastening elements to the platform. Each of vibration isolators is designed with different height and different angle of inclination to the rod. The vibration isolators are fixed on the rod through spacer rings. The lower horizontal bases of disc springs of each consequent vibration isolator are located with increase by the height determined by a conic surface inscribed in points of bending of lower horizontal bases of the disc springs. The spacer rings are made of a vibration damping material, for example, polyurethane. The horizontal lower bases of the plate springs on the side contacting the supporting plane are coated with sintered friction material based on copper.EFFECT: increased efficiency of vibration isolation in resonance mode.1 dwg
Combined spring by kochev // 2637566
FIELD: machine engineering.SUBSTANCE: spring is cylindrical and consists of two parts with oppositely directed ends. There are supporting rings on the spring supporting coils. The first spring part has rectangular section turns with rounded edges, and the second part is made hollow. The opposite directed end of the first part is located in the cavity of the second part. The segmental profile gaps of the contacting spring parts are filled with antifriction lubricant. The packing seal is mounted at the end of the second spring part to prevent the lubricant leakage. The first part of the screw spring is enclosed by the tube of a damping material. The gaps in the first part of the helical spring which is covered by the tube of damping material, are filled with a crumble of friction material. There vibration damping plates consisting of alternating layers of elastic and vibration damping materials mounted on the supporting rings. The lower vibration damping plate is mounted on the washer mesh damper through a flexible gasket made of polyurethane.EFFECT: increased efficiency of vibration isolation in resonance mode.3 dwg

Vibroisolating cocteta system with high damping // 2636990
FIELD: machine engineering.SUBSTANCE: vibration isolating system comprises a casing made of a helical hollow resilient steel tube. An additional resilient steel tube is installed inside the casing coaxially with a gap. A friction element, having higher thermal expansion coefficient as compared to steel, is placed in the gap between the tubes. The surfaces of the casing and the additional resilient steel tube touch the surfaces of the friction elements. A screw solid resilient pin is set coaxially to the casing. The friction element is made tubular in the form of a granular backfill made of sintered copper-based friction material. Vibration damping plates consisting of alternating layers of resilient and vibration damping materials are mounted on the upper and lower bearing surfaces of the casing.EFFECT: increase the efficiency of vibration isolation in resonance mode.3 cl, 1 dwg
Dimensioned kochetov vibration isolator // 2636845
FIELD: machine engineering.SUBSTANCE: vibration isolator comprises a base, a vertical rod, an elastic element and a hinge for connecting the string to an elastic element or a vibration-isolating object. The hinge is an intermediate support and control cross-shaped element. The elastic element is made in the form of a vibration damping spring, containing a body of a helical hollow elastic steel tube. An additional resilient steel tube is installed inside the casing coaxially with a gap. A friction element, having higher thermal expansion coefficient as compared to steel, is placed in the gap between the tubes. The surfaces of the casing and the additional resilient steel tube touch the surfaces of the friction elements. A screw solid resilient pin is set coaxially to the casing. The friction element is tubular in the form of a granulated backfill from a sintered friction material based on copper, which contains zinc, iron, lead, graphite, vermiculite, copper, chromium, antimony and silicon.EFFECT: increasing the efficiency of vibration isolation in resonance mode and increasing the sensitivity of the vibration isolator to horizontal movements of the object.7 dwg

Swinging platform, shock absorber and truck // 2636633
FIELD: machine engineering.SUBSTANCE: shock absorber contains the swinging platform and the vibration absorber. The swinging platform has the body (10), in which the mounting cavity (11) for mounting the friction vibration absorber (20) is formed. The first vertical hole (12) is communicated with the mounting cavity. The vibration absorber contains the friction vibration absorber, the horizontal elastic element (30) and the vertical elastic elements (40). The central cam (23) is located in the mounting cavity of the swinging platform. The number of vertical elastic elements are located under the swinging platform. The truck has the side frame (80) and the shock absorber.EFFECT: wear reduction of the friction vibration absorber and the swinging platform, the reduction of truck vibration in the unloaded condition.8 cl, 3 dwg

Inertial vibration isolator // 2636450
FIELD: machine engineering.SUBSTANCE: vibration isolator comprises a resilient element interposed between the vibration-insulated object and a base. On the base, there is a support of the vibration isolator body for fixing the screw. A nut is mated with the screw. Additional inertial mass is mounted on the free end of screw. The rod mechanism connects the vibration-insulating object with the nut. Resilient element is made in form of cylindrical helical spring and consists of two portions with mutually opposite ends. The first spring part has rectangular section turns with rounded edges, and the second part is made hollow. The opposite directed end of the first part is located in the cavity of the second part. The segmental profile gaps of the contacting spring parts are filled with antifriction lubricant. The packing seal is mounted at the end of the second spring part to prevent the lubricant leakage. The first part of the screw spring is enclosed by the tube of a damping material. The gaps in the first part of the screw spring, which enclosed the tube of damping material, are filled with crumb of friction material.EFFECT: increased efficiency of vibration damping due to obtaining collapses in amplitude-frequency property at low frequencies and increase of damping.3 dwg
Vibration isolator by kochetov with increased dampening // 2636448
FIELD: machine engineering.SUBSTANCE: vibration isolator comprises a body made of a helical hollow resilient steel tube. An additional resilient steel tube is installed inside the casing coaxially with a gap. A friction element, having higher thermal expansion coefficient as compared to steel, is placed in the gap between the tubes. The surfaces of the casing and the additional resilient steel tube touch the surfaces of the friction elements. A screw solid resilient pin is set coaxially to the casing. The friction element is made tubular in the form of a granular backfill made of sintered copper-based friction material. Vibration damping plates consisting of alternating layers of resilient and vibration damping materials are mounted on the upper and lower bearing surfaces of the casing.EFFECT: increased efficiency of vibration isolation in resonance mode.2 cl, 1 dwg

Vibration insulator by kochetov for objects with displaced center of masses // 2635712
FIELD: machine engineering.SUBSTANCE: vibration insulator of the suspension type comprises an elastic element, a cover and a base. The system for regulating the rigidity of the elastic element is made in the form of a flexible connection, one end of which is intended to be fixed to the object, and the other is mounted on the cover with the possibility of moving along it and locking it. On the cover guides are made in which a cursor is placed in which the other end of the flexible connection is fixed. Holes are made in the cover, through one of which the other end of the flexible connection is passed and fixed on the base. The elastic element is made in the form of a combined shock-absorbing spring. The spring is made as a cylindrical screw and contains two parts with opposite directed ends. The first spring part has rectangular section turns with rounded edges, and the second part is made hollow. The opposite directed end of the first part is located in the cavity of the second part. The segmental profile gaps of the contacting spring parts are filled with antifriction lubricant. The packing seal is mounted at the end of the second spring part to prevent the lubricant leakage. The first part of the screw spring is enclosed by the tube of a damping material. The gaps in the first part of the screw spring, which enclosed the tube of damping material, are filled with crumb of friction material.EFFECT: increase the efficiency of vibration isolation in resonance mode.4 dwg

Disk-shaped vibration isolator // 2635442
FIELD: machine building.SUBSTANCE: vibration isolator contains a frame designed as an upper platform for installation vibration isolated object and a lower base for arranging of stroke limiters of the unit of disk-shaped elastic elements. An adjustment plate is fixed to the upper platform by means of fastening elements. The elastic elements connect the upper platform to the lower base, on which a baffle plate is placed. The base of the frame vibration isolator in the place of contact with disk-shaped elastic elements is coated with a frictional material. The unit of disk-shaped elastic elements consists of four belleville springs of various height and angle of inclination to the vibration isolator axle. The belleville washers through spacer rings are placed on the vibration isolator axle and fixed with the help threaded chank and nut. Each of belleville washers has in a base a horizontal ring deflanging, resting on the lower base. The vibration isolator axle is rigidly connected to the upper platform of the frame. The spacer rings are made of a vibration damping material, for example polyurethane. The ring deflangings on the side contacting with the base are coated with a layer of sintered copper-based friction material.EFFECT: increased efficiency of vibration isolation in resonance mode.1 dwg
Kochetov's spring vibration isolator with damper // 2635438
FIELD: machine building.SUBSTANCE: vibration isolator contains a base, a pole, resilient elements of spring type and a support assembly. The base is made as two parallel angle-bars rigidly connected with each other by the thrust plate. On the thrust plate the resilient element of the spring type is secured by means of the cover and two screws. The support assembly is made in form of the rod with thread end securing the vibration isolated object. The rod has hemispherical head for contact with the cone surface in the resilient element. The support assembly is fixed to the resilient element with a screw. A damping device is placed between the base and the resilient element, comprising a housing made in the form of an upper and lower thrust washers with beads and threaded holes. The thrust washers are made with a screw thread which includes coils of a cylindrical helical spring pressed by flat washers. Inside the spring there is a mesh damper made in the form of a cylindrical bushing with a damping device inside it in the form of a sleeve. A profile damping ring made of cast polyurethane is fixed in the central part of the sleeve. Disks fixed by means of rods in the threaded holes of the thrust washers are located above the conical surfaces of the ring. Between the disks there is an additional damping element.EFFECT: increased effectiveness of vibration isolation.2 cl, 3 dwg

Vehicle motor wheel and vehicle with such motor wheel // 2633129
FIELD: transportation.SUBSTANCE: vehicle motor wheel contains a wheel with a hub and a hub bearing, and an electric motor with a stator and a rotor with a shaft placed in its body. There is also a damping structure mounted between the hub and the vehicle bearing element for vertical movement of the wheel relative to the bearing element and damping of such movement. The step-down gear of the motor wheel transfers motion from the electric motor to the hub and contains a housing, an input link and an output link, interacting therebetween. The input link is located on the rotor shaft. The output link comprises an output shaft mounted parallel to the rotor shaft and connected to the hub to form fixed connection. The step-down gear housing rigidly connected to the motor housing and is mounted in the wheel hub with the possibility of rotation relative to it. The motor body is connected to the damping structure with the possibility of moving relative to it.EFFECT: enhanced comfort due to reduced wheel vibrations.15 cl, 4 dwg

ethod of assembly of ship diesel power plant and device for its implementation // 2632232
FIELD: power industry.SUBSTANCE: before assembling marine diesel power plants (MDPP), determine the center of gravity (CG) along the vertical-transverse plane and move the oppositely symmetrical pairs of vibro-isolators along the transverse plane of the MDPP with respect to the fixing holes on the left and right sides. Clarify the coincidence of one of the sets of holes in the support plates of vibration isolators with the corresponding openings of the lower right-hand left shelf of the sub-engine frame and the ship's foundation. The final fastening of vibration isolators is made from one side to the lower right and left shelves of the sub-engine frame, and on the other - to the ship's foundation. The device for carrying out the installation method of the MSPP contains vibration isolators that are placed between the left and right shelves of the submersible frame of the MDPP and the ship's foundation, and rigidly attached to the frame and foundation. The support plates of vibration isolators along the entire length are made with a plurality of threaded holes with a minimum distance J between adjacent holes.EFFECT: ensuring equal load of vibration isolators and increasing their service life.2 cl, 6 dwg

Friction absorber device // 2631098
FIELD: machine building.SUBSTANCE: friction absorber device comprises a casing (1) with a bottom (3) and the neck (2) in which a friction assembly (4) consisting of a pressure element (11) and wedges (12) is located. Previously drawn in reverse retaining device ia licated on the bottom (3). Pushing member (11) is provided with a convex curved surface, and wedges (12) are provided with concave curved surfaces. Between the pressure element (11) and wedges (12) there are spacers (20) with a convex and concave curved surfaces. The concave curved surfaces of the spacer elements (20) are associated with the convex curved surface of the pressing element (11), and the convex curved surfaces of the spacer elements (20) are associated with the concave curved surfaces of wedges (12).EFFECT: effectiveness of the friction absorber device by providing a variable angle of the device wedging during movement of its pressure element in the frictional node.2 cl, 6 dwg

Absorbing frequency apparatus // 2631085
FIELD: transportation.SUBSTANCE: absorbent apparatus comprises a housing (1) with a neck (2), inner support pads (3), side walls (4) and a bottom (5). On the bottom (5) there is a preloaded return-support device (6), on top of which there is a friction unit (7). The friction unit (7) consists of a pressure cone (8), spacer wedges (9), a base plate (10), movable plates (11) and guide plates (12). The friction unit (7) forms the friction pairs: "a spacer wedge (9) - a guide plate (12)", "a guide plate (12) - a movable plate (11)" and "a movable plate (11) - the housing (1)". The housing (1) and the friction unit (7) are configured to create an additional friction pair "a spacer wedge (9) - the housing (1)", which acts during the final period of applying the load to the cone (8).EFFECT: increasing the operation efficiency.7 cl, 11 dwg

Device for damping shock and vibration impacts // 2629514
FIELD: construction.SUBSTANCE: device for damping shock and vibration impacts contains bases, a stop, disc springs placed in a cup, and a damper. The stop is made in the form of a rod with a hinge and is equipped with a stop diaphragm. The cup has a male thread on which the adjusting cup with a lock nut is screwed. The disc springs are arranged in the cup on both sides of the resilient diaphragm. A second rod with a hinge resting on the base is attached to the cup bottom through the damper. Wherein the damper comprises a central plate with frictional coating on both sides and oval openings, through which, by means of high-strength bolts, external plates with cylindrical openings lined with polished stainless steel are pressed against it, between which a connecting plate rigidly connected to the second rod is arranged.EFFECT: invention allows to increase the device reliability.5 cl, 1 dwg
Bumper with pendilum suspension // 2627190
FIELD: machine engineering.SUBSTANCE: bumper contains a spring that interacts with the pendulum mechanism. The pendulum mechanism is made in the form of a threaded rod with nuts at the ends and support washers resting on the elastic elements. The upper elastic element is made of rubber and is located between the upper spring flange and the support washer. The lower one is elastic-damping in the form of a net damper and is located between the support washer and the plate on which the vibration-proof equipment is fixed. The mesh dampener contains elastic grid elements interacting with each other, made of a mesh frame filled with polyurethane. Elastic bushing with central hole is located in the central part of the net package and is rigidly connected to the central plate. The plate divides the damping mesh bag into two identical parts. Support rings are fastened on the central plate. The upper and lower mesh elastic elements are respectively connected to the upper cover and the lower pressure washer of the pack.EFFECT: increasing efficiency of vibration insulation in the resonance mode and simplification of design and assembly.3 cl, 2 dwg
Kochetov method for vibration isolation damping variable structure // 2627172
FIELD: machine engineering.SUBSTANCE: vibration insulation of objects with variable weight is performed by means of elastic elements having internal damping. The frictional surfaces of the friction sleeve are divided into the inner and outer by means of limit stops and additional friction elements. The pressing force of additional friction elements to the surface of the hub is changed by means of adjusting screws connected to the worm-type executive servo motor. The signal for the activation of the servo motor comes from the microprocessor controlling the operation of the damper according to given characteristic, which is aligned with the analysis of signals from the piezocrystalline vibration acceleration sensor. The elastic elements are carried in between the end surfaces of the sleeve and the body, which are tuned to the resonance frequency of the vibration isolator. The friction sleeve is resonated and the vibration isolation system is switched to higher damping factor. The elastic element is made in the form of vibration isolator with a damping washer mesh package. The rod is disposed in the central part of the package, and between the package and the base of the vibration isolator, the upper and lower disc springs are fixed.EFFECT: increased vibration isolation efficiency.3 dwg
Kochetov's method for vibration insulation // 2627042
FIELD: machine engineering.SUBSTANCE: vibration insulation of objects with variable weight is performed by means of elastic elements having internal damping. The frictional surfaces of the friction sleeve are divided into the inner and outer by means of limit stops and additional friction elements. The pressing force of additional friction elements to the surface of the hub is changed by means of adjusting screws connected to the worm-type executive servo motor. The signal for the activation of the servo motor comes from the microprocessor controlling the operation of the damper according to given characteristic, which is aligned with the analysis of signals from the piezocrystalline vibration acceleration sensor. The elastic element is made in the form of vibration isolator with a damping washer mesh package. The rod is disposed in the central part of the package, and between the package and the base of the vibration isolator, the upper and lower disc springs are fixed.EFFECT: increased vibration isolation efficiency.3 dwg
Kochetov's vibration isolator // 2626440
FIELD: machine engineering.SUBSTANCE: vibration isolator contains the lever, connected to the base by means of the hinge and the elastic element. The base is made in the form of the horizontal shelf and the vertical rack, made in the form of the closed case. In the case, the horizontal shelf and the lever are fixed by means of the screws with one of its bent ends. At the other end of the lever, the vibration-isolated object is fixed by means of the locking device. The elastic element is located between the horizontal shelf and the lever. The stiffeners are made at the place of the lever contact with the elastic element. The inner surface of the case at the point of contact with the horizontal shelf and the lever is made in the section of the triangular profile. The elastic element is made in the form of the washer mesh bag, that contains the elastic elements from the mesh frame, filled with polyurethane. The upper and lower mesh elastic elements are respectively connected to the upper cover and to the lower pressure washer of the mesh bag and to the central plate. The support rings are fastened on the central plate. The rod from elastic damping material is located in the central part of the bag and it is rigidly fixed in the central plate.EFFECT: increase of the spacial vibration isolation efficiency.4 cl, 3 dwg
Spring vibration isolator with dry friction // 2626427
FIELD: machine engineering.SUBSTANCE: vibration isolator consists of a resilient element, a housing, and a dry friction damper. The housing is made in the form of a hollow vertical post, interacting with the T-shaped platform. The dry friction damper is made in the form of a sleeve, the inner surface of which interacts with the outer surface of the post through the spring-loaded friction elements. A spring resting on the base of the post is fixed on the outer surface of the sleeve. Between the interacting surfaces of the sleeve and the post there is a buffer limiting element. The elastic element is made in the form of a spring with an integrated damper. The spring is made screw cylindrical and consists of two parts with on-coming ends. The first spring part has coils of rectangular section with rounded edges and the second part is made hollow. The on-coming end of the first part is located in the cavity of the second part. The gaps of the segmented profile of the contacting parts of the spring are filled with antifriction grease for friction units containing mineral oil and a lubricating additive. A sealing gasket is mounted at the end of the second spring part to prevent grease leakage. The first part of the screw spring is covered with a tube of damping material, for example, polyurethane.EFFECT: higher efficiency of vibration isolation in resonance mode.2 dwg
Damping net package of kochetov // 2623022
FIELD: machine engineering.SUBSTANCE: damping net package contains the elastic net elements, interacting to each other. The net structure density of the elastic net elements outer layers is 1.5 times more than the density of the inner layers. The elastic elements are made of the net frame, filled with polyurethane. The elastic bushing with the central hole is located in the central part of the net package and is rigidly connected to the central plate. The plate divides the package into two identical parts, located oppositely to each other: the upper and the lower elastic elements. The support rings are fastened on the central plate. The upper elastic element is connected to the top lid of the package, and the bottom - with the lower pressure washer of the package.EFFECT: efficient damping in resonance mode and simplified design and assembly.3 cl, 1 dwg

Elastic damping support of rotor // 2622161
FIELD: machine engineering.SUBSTANCE: elastic-damper support of the rotor (1) comprises a bearing housing (2), at least one rolling bearing (3), a bushing (4) mounted over the outer bearing ring (3), from the outer surface of the package (5) corrugated plates with a through longitudinal groove, a retainer (7) of the bag (5). The through grooves of each plate or group of plates of the package (5) are offset relative to each other along the circumference. At the end of the bag (5) an additional groove is made, combined with a lock.EFFECT: increasing the accuracy of the centering of the rotor in the turbomachine housing, reducing the vibratory activity of the rotor and radial dynamic loads acting on the supports.2 cl, 2 dwg
Vibratory isolator with dry friction damper // 2620275
FIELD: machine engineering.SUBSTANCE: vibration isolator contains a spring with a built-in damper, a body and a dry friction damper. The body is made in the form of upper and lower hollow T-sleeves, fixing the spring with their end surface. The dry friction damper is made in the form of a sleeve of friction material located between the outer surface of the upper sleeve and the inner surface of the lower sleeve, which is resilient and presses the sleeve against the outer surface of the upper sleeve. The spring is a screw cylindrical one and consists of two parts with facing ends. The first spring part is fitted with rectangular section turns, which have rounded edges, and the second part is hollow. The facing end of the first part is located in the cavity of the second part. The gaps of segmental profile of contacting spring parts are filled by antifriction lubricant. A packing seal is mounted at the end of the second spring part to prevent grease leakage. The first part of the screw spring is embraced by a tube of damping material, for example, polyurethane. A lubricant for friction units containing mineral oil and a lubricating additive is used as an antifriction lubricant.EFFECT: increased efficiency of vibration isolation in resonance mode.2 dwg

ethod of vehicle carrying elastic support rigidity control and devices for its implementation: carrying controlled amortizer, carrying controlled elastic member console, carrying controlled device and carrying controlled console // 2619505
FIELD: transportation.SUBSTANCE: method of carrying elastic support rigidity control consists in using the internal space of the spring, capable of being completely compressed in one plane. A working volume is created, which together with the rigidity of the spring can make the total rigidity variable and adjustable according to the programs set in the electronic device. The carrying controllable shock absorber comprises a single structure of a conical compression spring and a hermetic high-strength elastic sheath or several such springs with sheaths connected through controllable bypass devices with low and high pressure vessels. Electronically adjustable clamping devices have brake pads with a drive and brake rods. The shock absorber is operated by an electronic device. The carrying controlled console is designed to be used as a device that complements the design of the elastic suspension element. Standard shock absorbers are used as damping elements. The carrying controlled device comprises a closed working volume formed by a conical compression spring. The first and last coils of the spring are made in the form of closed rings and rigidly connected to the bases of the device to form a sealed internal volume or several such volumes connected through controllable bypass devices with low and high pressure vessels. Electronically adjustable clamping devices have brake pads with a drive and brake rods. Operation is carried out by an electronic device. The carrying controlled console is designed to be used as a device that complements the design of the elastic suspension element. Standard shock absorbers are used as damping elements.EFFECT: increased suspension compression stroke, variation of the ground clearance height in a wide range, ability to adjust the characteristics of the shock absorber.14 cl, 3 dwg
Kochetov's disk-shaped vibro-isolator // 2618353
FIELD: machine engineering.SUBSTANCE: vibro-isolator contains a housing including a base with a cover. In the body there is a package of serially connected disc-shaped elastic elements, the inner surface of which interacts with a bushing located coaxially with them. One end of the bushing is rigidly fixed in the base, and the other - interacts with the inner surface of the lid. Between the end of the sleeve and the bottom of the cover there is a gap in which a buffer device is installed in the form of a damping washer mesh bag. Elastic mesh elements of the package are made of a combination of a mesh frame filled with polyurethane. The stem of the resiliently damping material is located in the central part of the bag with gaps in the upper and lower mesh elastic elements. In its middle part, the stem is rigidly fixed to the central plate, on which the support rings are fixed. The upper and lower mesh elastic elements are respectively connected to the upper cover and the lower pack pressure plate.EFFECT: increasing the efficiency of vibration isolation in resonance mode by increasing the damping in the system.4 cl, 6 dwg
Vibro-insulator for looms // 2618351
FIELD: machine engineering.SUBSTANCE: vibro-isolator comprises a housing including a base with a cover and a stack of serially connected disk elastic elements disposed therein, the inner surface of which interacts with the sleeve. One end of the bushing is rigidly fixed in the base, and the other - interacts with the inner surface of the lid. The end part of the cover interacts with the disc-shaped elastic elements. In the cavity formed by the lid and the sleeve, an additional elastic element is provided, which is in the form of a spring with an integrated damper. The spring is a screw cylindrical one and consists of two parts with on-coming ends. The first spring part is fitted with turns of rectangular section with rounded edges and the second part is hollow. The on-coming end of the first part is located in the cavity of the second part. The gaps of segment profile of contacting spring parts are filled by antifriction grease. A sealing gasket is mounted at the end of the second spring part to prevent grease leakage. The first part of the screw spring is embraced by a tube from damping material, for example, polyurethane. As an antifriction lubricant, a lubricant is used for friction units containing mineral oil and a lubricating additive.EFFECT: increase the efficiency of vibration isolation.2 dwg
Vibro-isolating system of kochetov for machine tools // 2618350
FIELD: machine engineering.SUBSTANCE: vibro-isolation system contains four vibration isolators having different rigidity. A platform rests on two vertically arranged bumpers and of a bumping element. One vibration damper is installed over a free end of the platform and with another end it is attached to a lever. Two vibration dampers are fastened to the lever on opposite sides relative to the free end of the platform. At the opposite end of the platform, damping element in the form of a pack of mesh elastic elements is installed. The rod is located in the central part of the bag with gaps in the upper and lower mesh elastic elements and the central plate on which the support rings are fixed. The upper and lower mesh of elastic elements are respectively connected to the upper cover and the lower pack pressure plate. The lower part of the rod is connected to the base of the bag, and the upper part is located in the upper mesh elastic element, projecting beyond the surface of the upper cover.EFFECT: efficient damping in resonance mode and simplified design and assembly.3 cl, 3 dwg
Spring vibro-isolator with dry friction // 2618349
FIELD: machine engineering.SUBSTANCE: vibro-isolator contains a housing in the form of a hollow vertical post, interacting with a T-shaped platform, elastically coupled to a dry-friction damper. The damper is made in the form of a sleeve, whose inner surface interacts with the external surface of the column via spring-loaded friction elements. On the outer surface of the bushing, spring is fixed, resting on the base of the body. Between the interacting surfaces of the hub and the post is placed a mesh damper. Elastic mesh elements of the package are made of a combination of a mesh frame filled with polyurethane. An elastic bushing with a central hole is located in the central part of the mesh bag and is rigidly connected to the central plate. The support rings are fastened in the central plate. The upper and lower mesh of elastic elements are respectively connected to the upper cover and the lower pack pressure plate. A dry friction damper is located at the center of each mesh elastic element. The damper is the upper and lower sleeves connected to the interference, forming a friction pair. Elastic bushing with clearance is placed in the sleeves.EFFECT: efficiency of vibro-isolation in resonance mode increase.2 dwg
Spatial spring vibro-isolator of kochetov // 2618348
FIELD: machine engineering.SUBSTANCE: vibro-isolator contains a U-shaped base, spring-type elastic elements and support units. A rod with a threaded end is rigidly attached to the base. A resilient element of the spring type is fixed by elastic elements located in the grooves of the base, by means of a cover and a cylindrical elastic washer clad on the rod. The washer is made in the form of a damping mesh bag and contains an elastic sleeve with a central hole. The bushing is located in the central part of the bag and is rigidly connected to the central plate. The plate divides the damping mesh bag into two identical parts. Elastic mesh elements of the package are made of a combination of a mesh frame filled with polyurethane. The support rings are fastened in the central plate. The upper and lower mesh elastic elements are respectively connected to the upper cover and the lower pack pressure plate.EFFECT: increasing the effectiveness of spatial vibration isolation due to the introduction of damping into the system.3 cl, 4 dwg

Load absorbing device // 2615588
FIELD: machine building.SUBSTANCE: load absorbing device, comprises a casing (1) with a neck (11) and bottom (2), located on the bottom parcel (3) of the mounted one above the other elastic elements (4-9), interleaved by plates (14-17) through which a pivot (10) fixed in the casing passes, and load transfer mechanism (12) on the parcel of elastic elements positioned in the casing neck. Elastic elements (6, 7, 8) placed one after other are installed anywhere of their parcel, so that they form a contour (13) widening towards the bottom of the casing.EFFECT: higher device reliability.12 cl, 20 dwg
Absorber device // 2615577
FIELD: machine building.SUBSTANCE: absorber device comprises a casing (1) with a bottom (3) and the neck (2) in which a friction assembly with friction surfaces, consisting of a pressure element (11) and wedges (12) provided with a spacer angle is located. Previously drawn in reverse retaining device (4) is located on the bottom. Friction surfaces form a contour tapering away from the bottom of the casing, and a pressure element and wedges are made with additional thrust corners and with the possibility to operate alternately at a predetermined value of the pressure element movement with the thrust corner and the additional thrust corners.EFFECT: increased absorbing device efficiency through the redistribution of the resultant force from the external load on the set value of its expansion stroke with a predominance of more rigid characteristics of the stroke at the beginning of the resultant force applying.7 cl, 9 dwg
Kochetov's seismic-resistant construction // 2615183
FIELD: construction.SUBSTANCE: in seismic-resistant building, containing the vibration-isolated foundation, the horizontal and vertical bearing structures with the vibration isolation system, the internal partitions, the building roof, as well as the door and window openings with reinforcement; the base bearing floor slabs in the points of their attachment to the bearing building walls are equipped with the spatial vibration isolation system consisting of horizontally arranged vibration isolators perceiving vertical static and dynamic loads, as well as vertically arranged vibration isolators perceiving horizontal static and dynamic loads, at that the floor of the premises is made on the elastic foundation and contains the mounting plate made from the reinforced vibration damping concrete material, which is installed on the base plate of the interfloor overlapping with the cavities through the layers of the vibration damping material and the waterproofing material with a gap relative to the bearing walls of the production premises. The cavities of the baseplate are filled with vibration damping material, such as foamed polymer. Each of the vibration isolators contains the rigidly interlinked rubber plates: the upper and the lower ones, in which through openings are made, arranged on the isolator surface in the staggered order; the vibration isolators are made of a square or a rectangular shape, and their side faces are made as curved surfaces of the n-th order, providing the equifrequency of the vibration isolation system in general. The holes in the section have the form, providing vibration isolator equifrequency, or vibration isolator is designed as the symmetric washer latticed vibration isolator, containing the base, which is located in the middle part of the vibration isolator and is made in the form of plate with fixation holes, and latticed elastic elements, the upper one with top pressure washer and lower with lower pressure washer, rigidly connected with the base through the support rings, respectively, while in the upper latticed elastic element, in the center, the dry friction damper is located axially symmetrically, made in the form of the upper pressure washer rigidly connected with the central positioned ring, enclosed by coaxially positioned ring, which is rigidly connected to the base, as well as in the lower latticed elastic element, the dry-friction damper is axially symmetrically disposed in the center, made in the form of the lower pressure washer, rigidly connected with the centrally located ring, enclosed by coaxially arranged ring, rigidly connected to the base.EFFECT: providing opportunities to strengthen the existing buildings and constructions or erection of the reinforced buildings and constructions with increased resistance to the wind loads and earthquake effects.11 dwg
 
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