Springs and shock-absorbers and means for damping vibration (F16F)

Combined vibration isolation system of torsion type // 2642213
FIELD: engineering.SUBSTANCE: invention relates to mechanical engineering. Combined vibration isolation system contains a base, a spatial transmission mechanism, a pivot linking the base and a vibration-insulated object. Transmission mechanism is made in the form of two torsions in parallel mounted on the vibration-insulated object in hinges with oppositely attached levers at their ends. Free ends of the levers are connected with vertical rods by means of spherical hinges. Rods are connected to the base by spherical hinges. Three shock-absorbing springs are installed and fixed between the base of the vibration-insulated object and the base of the protected inter-floor overlapping of the building.EFFECT: increased efficiency of vibration isolation in resonance mode is being achieved.1 cl, 2 dwg
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

Spring device and method of producing spring device // 2641989
FIELD: machine building.SUBSTANCE: group of inventions relates to machine building. Device comprises spring (3) with coating (7). Spring support (4) is made of plastic. Spring (3) and its support (4) are glued together with adhesive layer (8). Hardness of adhesive layer (8) is less than the hardness of coating (7). Method includes the steps of manufacturing spring device (2).EFFECT: improved resistance to wear and improved service life is achieved.16 cl, 5 dwg

Telescopic suspension device, equipped with prestressing pretension precautions system // 2641539
FIELD: machine engineering.SUBSTANCE: telescopic suspension device is made with the possibility of connection with the hub of the wheel, containing the first tube, second tube moving sliding on the first tube, and a spring located inside these tubes, and optionally contains the cap regulation prestressing of the main spring. The control plug of the prestressing pretension of the main spring contains the pre-stressing system of the main spring in accordance with the user's weight. The bicycle frame contains a suspension device.EFFECT: increase the accuracy of suspension adjustment by the user.9 cl, 20 dwg

ethod for balancing rotor of turbine engine and rotor balanced by such method // 2640863
FIELD: engines and pumps.SUBSTANCE: method for balancing the rotor of the turbine engine includes installation of screws of on the rotor forming the balancing loads to form a balancing circuit. Each screw has a given mass and comprises a head having a visual characteristic previously related to the screw weight. A rotor balanced by the method according to the invention, and a turbine engine comprising a rotor according to the invention are also provided. In particular, the invention is applicable to a turbine engine fan.EFFECT: improved fan balancing method.12 cl, 4 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

Elastic element with dempping element // 2640149
FIELD: machine engineering.SUBSTANCE: elastic element contains coaxially installed cylindrical and conical springs of constant cross-section wire with the same pitch. Springs are placed on articulated links connected to the platform for the installation of the machine. The springs are located in a body mounted on the base through a vibration damper. In the case, a vertical hole is made for placing the hinge rod. One end of the rod is rigidly attached to the platform for mounting the machine, and the other is connected to the lid by means of a hinge. The upper flanges of the springs rest against the lid, and the lower flanges rest against the body. Horizontal holes are provided to connect the platform to each of the springs in the bodies.EFFECT: increase in the efficiency of vibration isolation in resonance mode.2 cl, 4 dwg

Hingedly - lever mechanism // 2640086
FIELD: machine engineering.SUBSTANCE: hingedly-lever mechanism contains the rack, the leading crank, the driven link, the connecting rod and the device for removing the mechanism from the dead positions. This device is the ferromagnetic strip, fixed on the connecting rod and the elastic relay plate element. The plate element can have two stable positions with the opposite direction of the convexity. The permanent magnet, designed for power interaction with the connecting rod, is fixed on the element.EFFECT: simplification of design.3 dwg

Damping device // 2639845
FIELD: machine engineering.SUBSTANCE: damping device comprises the first spring seat (41) and the second spring seat (42). The metal core member (45) comprises a metal core member (451) of the seat segment located along the spring seating surface (43a) in the seat segment (43). The open segment (451a) of the metal core adjoins the coil springs (31, 32). The fragment of the spring seating surface slides relative to the coil springs.EFFECT: increased wear resistance of the device.5 cl, 24 dwg

Suspension method and damping device intended for motor vehicle // 2639469
FIELD: machine engineering.SUBSTANCE: damping device comprises a shock-absorber (1) filled with hydraulic fluid, inside which there is a piston (2) connected to a rod (17). There is an output module (15) that controls the damping system by varying the degree of stiffness and damping in each sub-phase of compression and return phases. The damping values are chosen for both the compression direction and the return direction for each of the shock-absorber operation sectors, depending on whether this operation is between the static position of the suspension and the position of full compression or between the static position of the suspension and the position of full return.EFFECT: it is possible to adjust the degree of stiffness independently and damping in each sub-phase.21 cl, 8 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
Washer mesh vibration isolator // 2639360
FIELD: machine engineering.SUBSTANCE: vibration isolator contains two elastic elements of mesh type opposite to common vibration damping base fixed on the common base by means of plates with fastening holes. Each of the elastic elements of the mesh type comprises a base, a main elastic mesh element and washers interacting with the bushings. The main mesh elastic element of the damper is supported by the lower part on the base and fixed by the lower washer, and the upper part is fixed by the upper pressure washer. 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. A elastic element is positioned between lower end of the piston and the sleeve bottom. The elastic element is made of meshed frame filled with polyurethane, or a meshed one with parameters of meshed structure, as in the main elastic mesh element.EFFECT: increasing efficiency of vibration insulation in the resonance mode and simplification of design and assembly.2 dwg
Vibration insulating system of track machine operator cabin // 2639359
FIELD: machine engineering.SUBSTANCE: vibration isolation system comprises a pneumatic spring connected by a pneumatic line to the power source through a high-adjustment valve. The valve includes a body which is fixed on the under-spring portion, and a non-compressed rod. The rod is fixed by one end on the spring portion and the other end interacts with a ball placed in the body and spring-loaded relative thereto. The valve is provided with a floating piston which encloses the rod and pressed by the spring to the body projections for closing the channels provided therein. The damping devices are arranged between the frame and a carrying plate in parallel with pneumatic elements. The damping devices are in the form of washer-type meshed damper. The damper comprises a base, a main elastic mesh element and washers interacting with bushings. The main mesh elastic element of the damper is supported by the base lower part and fixed by the lower washer, and the upper part is fixed by the upper pressing washer. Lower washer is connected to the base made in form of a plate with fastening holes. The upper pressure washer is connected to a centrally located ring enclosed by a coaxially arranged ring connected to the base. A elastic element is positioned between lower end of the piston and the sleeve bottom.EFFECT: increased vibration insulation efficiency.4 dwg
Vibration insulating system by kochetov with equifrequent spring // 2639358
FIELD: machine engineering.SUBSTANCE: vibration insulating system comprises a base, a horizontal supporting platform, and an elastic element arranged therebetween in the form of a cylindrical equifrequent spring. A platform is connected by means of fastening elements to a supporting unit fixed on the spring supporting plate by means of adjusting rod and a fixing bushing. A bushing elastic-damping element is coaxially arranged between the rod and the bushing. Inside the spring there is an elastic-damping device. The lower spring flange is fixed at the elastic base. The base consists of alternating layers of elastic material, for example sheet spring steel, and layers of hard grades of vibration damping materials, such as plasticate of "Agat", "Antivibrit", "Shvim" type. A screened damper is placed under the elastic base of the spring lower flange which is mounted on elastic-damping gasket made of elastomer.EFFECT: increased vibration insulation efficiency.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
Washer mesh vibration isolator with additional damping elements // 2639355
FIELD: machine engineering.SUBSTANCE: vibration isolator contains a base, an elastic mesh element and a washer interacting with bushings. The main mesh elastic element of the damper is supported by the lower part on the base and fixed by the lower washer, and the upper part is fixed by the upper pressure washer. 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. A elastic element is positioned between lower end of the piston and the sleeve bottom. The elastic element is made of meshed frame filled with polyurethane, or a meshed one with parameters of meshed structure, as in the main elastic mesh element. The base is mounted on additional damping element. An additional damping element is fixed on the upper pressing washer. The additional damping elements are double-layered. One layer is made of rigid vibration damping material of "Agat" type and the other one is made of polyurethane.EFFECT: increasing efficiency of vibration insulation in the resonance mode and simplification of design and assembly.2 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

Adjustable gas spring, height adjustable support with gas spring and furniture with height adjustable support // 2638406
FIELD: machine engineering.SUBSTANCE: table (101) contains a table top and supports (104, 105). The lower supporting element and upper supporting element are movable relative to each other. An adjustable gas spring comprises a gas spring section (91, 92), a gas accumulator. The gas accumulator and the gas spring section are fluidly connected to each other by connecting means (94). It is possible to adjust by equalizing the pressure by the gas accumulator and/or by external pressure. At least one synchronizing means (106, 107) synchronizes the adjustment cooling fluid of the table supports. One of supports is equipped with adjustable gas spring.EFFECT: expanded range of operating means.15 cl, 5 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

Vibration isolator of large carrying capacity // 2638363
FIELD: machine engineering.SUBSTANCE: vibration isolator comprises two tapered elastic bushes from wire non-woven web of rubber-metal material. Small concentric collars are made on the casing, cap and flange of a central bushing, and used to align the tapered bushes and provide for radial preloading. Axial preloading in tapered bushings is created by tightening a lower slotted nut up to the stop of the cap against the coupler screw collar and the face of the central bushing against the cap. A unit with its vibration to be absorbed is mounted on the cap and fixed by a washer, the second slotted nut and a split pin. Between the flange of the central hub and the lower slotted nut of the coupling screw there is a cylindrical helical spring consisting of two parts with oppositely 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 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: increasing the damping efficiency at low and medium frequencies in resonant operation modes.4 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

Torsion-type vibration insulating system by kochetov // 2637580
FIELD: machine engineering.SUBSTANCE: vibration isolation system contains a base, a spatial transmission mechanism, a hinge-connecting base and a vibration-insulated object. The transmission mechanism is made in the form of two torsions mounted in parallel on the vibration-insulated object in hinges with oppositely attached levers at their ends. The free ends of the levers are connected with vertical rods by means of spherical rods. The rods are connected to the base by spherical hinges. Three vibration-damping springs are installed and fixed between the base of the vibration-insulated object and the base of protected inter-floor ceiling of the building.EFFECT: increased efficiency of vibration isolation in resonance mode.2 cl, 2 dwg

Vibration insulation system with automatic adjusting and maintaining resonance modes of machine vibration oscilations // 2637578
FIELD: machine engineering.SUBSTANCE: vibration insulation system comprises a platform mounted on the fixed base by means of elastic-viscous supports, a control unit, a frequency converter of electric energy, two transducers of unbalance position and an oscillation sensor. The control unit consists of signal matching device, a phase shift calculation unit and programmable logic controller. The elastic component of elastic-viscous supports is in the form of a cylindrical helical spring consisting 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. 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.EFFECT: automatic adjustment to resonance mode of vibration machine working element oscillation, increase of damping in the system.2 dwg
Vibration insulating system by kochetov // 2637574
FIELD: machine engineering.SUBSTANCE: vibration-isolating system comprises a base and hubs. Two flat springs are located on lateral sides of the machine. One of the ends of each spring is rigidly fixed to the front support surface of the machine, and the other - in the rack located on the base. Two support nodes are fixed to the rear support surface of the machine. The roller mechanism for compensating the rotating oscillations interacts with the upper surface of the elastic element of the elastomer, the cylindrical roller and the support plate with a spherical groove fixed to the rear support surface of the machine. A mesh damper is mounted under the bracket on the front supporting surface of the machine. The main mesh elastic element of each damper is supported by the lower part on the base and fixed by the lower washer, and the upper part is fixed by the upper pressure washer. 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 reliability of machine operation due to reduced amplitude of swinging in resonance operation modes.6 dwg
Vibration insulator with elastic elements of spoke type // 2637572
FIELD: machine engineering.SUBSTANCE: vibration insulator comprises a body, a central bushing with a rod for connecting with a vibration-insulated object and a system of wire elastic elements. One ends of wire elastic elements are fixed in body and others are fixed in the bushing. The wire elastic elements are arranged in the radial planes and are crossed in pairs with each other. Flat springs are fixed by their ends on inner surface of central bushing for interaction of its convex part with rod. Body is provided with additional bushings with thread on the inner surface installed in the body wall. The wire elastic elements have a thread on the end for interaction with threads of bushings. The body of the vibration insulator is placed in a frame made in the form of a cup with a bottom. The upper part of the cup is rigidly connected to the body. A damping device is placed between the rod of central bushing and the frame bottom through a vibration damping gasket. The damping device is made in the form of a washer mesh damper consisting of the upper and lower covers, between which a mesh elastic element is placed.EFFECT: increase of the special vibration isolation efficiency.2 cl, 2 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
Spring vibration insulator for process equipment with variable mass // 2637569
FIELD: machine engineering.SUBSTANCE: vibration insulator comprises a base, a supporting platform, and an elastic element arranged therebetween in the form of a cylindrical equifrequent spring. The lower spring flange is secured on a flexible base and the upper flange is secured on the supporting plate. A vibration-insulating object is fixed on the supporting platform by means of fastening elements. The platform is coupled with a supporting unit enclosing the adjusting bolts by nuts. The supporting unit is fixed on the supporting plate of the vibration insulator by adjusting bolts rigidly connected to bushings. Each bearing unit has vibration damping bushings mounted coaxially relative to the adjusting bolts. The flexible base is connected to the lower platform of vibration insulator by three hubs with screws and with elastic bushings arranged coaxially outside the hubs. A cylinder-taper damper is placed under the elastic base of the spring lower flange. The damper is in the form of series-connected conical and cylindrical helical springs, which turns are coated with polyurethane layer. The elastic base consists of alternating layers of elastic and vibration damping materials. An elastic damping device made of elastomer is placed inside the equifrequent spring.EFFECT: increased vibration insulation efficiency.2 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

ethod of energy generation in which harmful support vibration is used and simultaneously partially dampened (versions) // 2637156
FIELD: power industry.SUBSTANCE: in the first version the energy generation method, in which the harmful support vibration is used and simultaneously partially dampened, is characterized in that an unbalanced rotor mounted on the support is accelerated to the frequency equal to or greater than the vibration frequency of the support, after which the unbalanced rotor acceleration is stopped and the energy is removed, for example, from its shaft. In a preferred version of this method, the unbalanced rotor is accelerated by an electric motor whose shaft is connected to the shaft of the unbalanced rotor. The second version generally repeats the first one, but it uses two unbalanced rotors and, accordingly, two engines.EFFECT: method allows to generate mechanical or electrical energy due to the use and simultaneous partial dampening of the harmful support vibration, the generation of energy is carried out without significant heat loss and is therefore effective.6 cl, 4 dwg
Washer reticulate vibration isolator // 2637047
FIELD: machine engineering.SUBSTANCE: vibration isolator contains a base, an elastic reticulate element and washers interacting with bushings. The base is made in the form of a plate with mounting holes. The main reticulate elastic element rests on the base and is fixed by the lower washer and the upper pressure washer. The lower washer is rigidly connected with the base. In the base, the main reticulate elastic element and washers, coaxial central holes of the same diameter are made. The guide sleeve is rigidly fixed in the hole of the base. In the upper pressure washer, a sleeve is attached, which comes with a clearance in the guide sleeve. In the gap there is a lubricant, for example, solidol. Around the guide sleeve, two additional piston-type damping elements are disposed in the main reticulate elastic element, the piston of which is rigidly fixed to the upper pressure washer and is covered with a clearance coaxially with the sleeve rigidly connected to the base. Between the lower end of the piston and the bottom of the sleeve there is an elastic element.EFFECT: increase the efficiency of vibration isolation in resonance mode.2 cl, 1 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

Pneumatic suspension device with integrated control valve and rod-like actuation means // 2636986
FIELD: machine engineering.SUBSTANCE: pneumatic spring includes an integrated system of control valves for compressed air supply to a cavity (6) for creating spring pressure formed between a shell (1), a pipe (3) of pneumatic spring and connecting said structural elements with an resilient element of a pneumatic suspension (5). The control valve system consists of a separate air intake valve (8) and a separate air outlet valve (9). The air inlet valve (8) is arranged opposite the air outlet valve (9) with the drive pushers facing each other (8a, 9a). Mechanical actuating means located therebetween and acting thereon include a switching rod (10) arranged on one side on the shell (1) or pipe (3) of the pneumatic spring. The guides (11a, 11b) which are opposite and intended for each of the drive pushers (8a, 9a) of the switching rod (10) sliding influence the drive pushers (8a, 9a) for the position-dependent actuation stroke of the valve.EFFECT: providing reliable air inlet and outlet to or from the cavity to create spring pressure at any stroke position.12 cl, 4 dwg

Dc traction substation with flywheel storage // 2636847
FIELD: electricity.SUBSTANCE: DC traction substation with a flywheel storage includes a power transformer, rectifier, a smoothing filter with a reactor, flywheel storage, an energy conversion, control and redistribution unit, current and voltage sensors. The conversion, control and redistribution unit include an automatic drive that is connected to the storage and to an automatic transfer box. The transfer box is connected to a DC motor, a DC generator and a three-phase generator by means of shafts. The motor and the DC generator are connected to the positive and negative buses of the traction substation via semiconductor switches. The three-phase generator is connected to the three-phase supply network through a semiconductor switch unit. In this case, the control leads of the automatic drive with an automatic transfer box, all semiconductor switches are connected to the corresponding terminals of the control unit, to the inputs of which the terminals of the current and voltage sensors and the terminal of the storage charge level sensor are connected.EFFECT: improving the safety and reliability of the traction substation.1 dwg
Vibration insulation system of kochetov for technological equipment // 2636846
FIELD: machine engineering.SUBSTANCE: vibration insulation system contains a base and racks. Two flat springs are located on the sides of the machine. One of the ends of each spring is rigidly fixed to the front support surface of the machine, and the other - in the rack located on the base. Two support nodes are fixed to the rear support surface of the machine. The roller mechanism for compensating the rotating oscillations interacts with the upper surface of the elastic element of the elastomer, the cylindrical roller and the support plate with a spherical groove fixed to the rear support surface of the machine. On the front support surface of the machine under the bracket an additional elastic-damping element is installed.EFFECT: increase the reliability of the machine by reducing the amplitude of oscillation in resonant operating modes.3 cl, 7 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

Damping device // 2636844
FIELD: machine engineering.SUBSTANCE: device contains the first coil spring (31) and the second coil spring (32) disposed in a circumferential direction between a support arm (11) on the side of the hub disk for the hub (1) disk and the support arm (24) on the side of the intermediate disk for input/output disk (2). The first spring seat (41) and the second spring seat (42) are made of polymeric material. The metal core element (45) supports two ends of the coil springs (31), (32). Two saddles (41), (42) of the spring comprise a seat piece (43) and a protruding piece (44). The element (452) of the metal core of the protruding piece of the element (45) comprises a piece (452) with low rigidity. The high rigidity piece (452b) is formed on the far side of the seat piece (43).EFFECT: increasing the wear resistance of the protruding piece and the coil spring.6 cl, 20 dwg

Damping device // 2636840
FIELD: machine engineering.SUBSTANCE: device comprises a spring saddle (42) that supports the two ends of the first coil spring (31) and the second coil spring (32). The springs are arranged in a circumferential direction between a hub disc and a disc. The spring saddle (42) comprises a pair of clamping protrusions (46) protruding from the saddle piece (43). The side in the direction of the external diameter of the device of the central axis (Sc) of the spring is a low stiffening piece (46a). The side in the direction of the internal diameter of the device of the central axis of the spring is a high stiffening piece (46b).EFFECT: suppression of the possibility of damage when fastening to a fixing piece.4 cl, 19 dwg
Vibration insulator for weaving looms // 2636834
FIELD: machine engineering.SUBSTANCE: vibration isolator contains casing and elastic elements interacting with the object. The casing is made in form of an articulation linkage, which consists of horizontal levers and vertical rods. At one end, the levers are rigidly linked with lids supported by the resilient elements, while the other one is pivotally connected to the rods. The rods by means of the hinges are linked with the horizontal platform, on it the process equipment is installed. The ends of the elastic elements are in contact with the elastic washers installed between the base and covers. Elastic elements are made in the form of screw or disk springs with damping devices "dry friction" or mesh dampers.EFFECT: increase the efficiency of vibration isolation in resonance mode.3 cl, 5 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
 
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