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

Hydraulic damper // 2628552
FIELD: machine engineering.SUBSTANCE: hydraulic damper (10) contains the piston valve (22) fixed at the end of the piston rod (11), the base valve (27), the tank chamber (15). The base valve includes the compression side channel (31). The first coil spring (28) is provided between the first valve (24) and the base valve, and the second coil spring (23) is provided between the first valve and the piston valve. The compression side channel is closed by the first valve near the maximum compression state, reducing the oil flow rate, entering the tank chamber. The second valve (33), passing through the first valve centers and the base valve, regulates the oil flow rate, entering the tank chamber (15), when the pressure is equal to or exceeds the specified level of the pressure in the oil chamber (21b). In the second embodiment, the third valve is provided on the lower part of the first valve.EFFECT: damping force characteristic change.3 cl, 30 dwg
Rescue vessel on air cushion for mobile delivery of injured persons and cargoes from places under emergency situations to temporary accommodation points // 2627916
FIELD: transportation.SUBSTANCE: rescue vessel comprises a cabin with a metal stamped welded frame consisting of load-bearing profile structures, inside which packages of sound-vibration-heat insulation elements are installed. The cabin frame is connected to the ship load-bearing structures by means of a vibration insulation system, which comprises rubber vibration insulators of the upper and lower suspensions of the cabin. The vibration insulators of the lower suspension of the cabin are made in the form of cylindrical helical springs with an integrated damper, each of which comprises a cylindrical helical spring consisting of two parts with oppositely directed ends, one part of which has turns of rectangular cross-section, and the other part of the spring is made hollow. Wherein the counter-directed end of the first part is located in the cavity of the second one. The clearances of the segment profile of contacting spring parts are filled by antifriction grease.EFFECT: noise level reduction.7 dwg
Coaxial elastic torsion bar // 2627217
FIELD: machine engineering.SUBSTANCE: torsion bar contains a mounting plate, to which the body is rigidly fixed in the form of elastic bushing. On the inner surface of one of the ends of the elastic bushing there is a fixing element through which the body of the torsion bar is connected to the vibration damper insert. The insert is made in cylinder form of rigid vibration damper material. Inside the insert there are elastic damping elements in the form of bushings or in the form of elastic core with coaxially fixed damping discs threron. The core consists of elastic part in the form of a rod and a damping part in the form of outer coaxial shell made of polyurethane. The damping discs consist of elastic part in the form of discs oppositely fixed on the elastic core of rigid vibration damping material and a damping part in the form of a disc made of polyurethane.EFFECT: increased vibration and vibration isolation properties.3 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

Torsional vibration damper // 2626799
FIELD: machine engineering.SUBSTANCE: damper contains the housing (1) with the cover (2), the working space and the flange with holes (8) for attaching the damper to the crankshaft. The flywheel (3) is located inside the housing in the fluid medium with the high viscosity (7). The slits are equidistant relative to each other along the circumference. In the flywheel slots there are thrust plates (4), installed in the recesses, formed inside the body on its outer surface, the rear wall and the inner surface of the cover. There are the springs (6) between the thrust plates and the flywheel slots walls. The ends of the springs rest against the recesses, made in the slots walls and on the plate surfaces. Inside the housing, the bushing (5) is installed between its surface on the inner diameter and the flywheel.EFFECT: increase of the torsional vibrations damping efficiency over the wide range of the crankshaft speed changes, increase of the engine operational life.2 cl, 6 dwg

Vibration isolator "double bell" (versions) and method of manufacturing of its elastic hysteresis elements from wire material // 2626787
FIELD: machine engineering.SUBSTANCE: vibration isolator contains two bell-shaped elastic-hysteresis elements made by cold pressing method from the wire material, on which bolts are fastened with the help of washers and nuts. The shockproof cushion of the metal-rubber is fixed on the head of one of the bolts. The support base is made in form of a cylindrical flange, smoothly turning into a conical part. Bell-shaped elements are connected to each other along the periphery of the bases. The connection according to the first variant is made by a compression coil spring, a coil of one or three wires, or by two springs screwed together. The connection according to the second variant is made by three compression springs: two conical ones with high compliance and a cylindrical one with greater rigidity. Conical coil springs are made from one wire, and cylindrical one - from one, two or three wires. A workpiece is made from a grid, formed in form of a stocking, woven from wire spirals. The axes of the coil are located parallely to the generating grid. One part of the grids is weaved from the spirals of the right whorl, and the other part - from the spirals of the left whorl. A continuous strip is formed from the layer of the right whorl and the layer of the left whorl. The coils are inserted into curls of coils of one layer in the coils of the other layer along the entire length of the strip without compression of the curls of the coils. A workpiece is formed from the obtained strip. In each layer of the continuous strip grids are laid end to end. Joints in different layers are evenly distributed over the circle. The ends of the strip are located against each other in one radial section of the workpiece. There is the same number of stratum layers in each radial section.EFFECT: simplification of design, possibility of automating the assembly process.13 cl, 12 dwg

ethod of strengthening bells of vibratory insulators of dk type // 2626785
FIELD: machine engineering.SUBSTANCE: bell-shaped elements made from wire material of metal cutting with fixing parts of the vibration isolator fixed to them are set by bases on each other. Fasten and staple a continuously made spiral of steel wire. The pitch of the spiral is selected in such a way that, when screwing, the end of the spiral is precisely placed into the holes that are equidistant in the circumferential direction along the perimeter of the bases. After screwing, the spirals are cut off and pressed. The end turns of the spiral are left free or welded by point or roller welding. In the method according to the first version, the spiral is screwed in until the coils of the spiral, which when the spring is separated from the spiral by its end turns, come into contact with each other. In the method of the second embodiment, the screwing is performed in succession in separate sectors. In the method of the third version, the spirals are screwed simultaneously into all sectors. In the method of the fourth embodiment, the spirals are first simultaneously wound in all sectors to a position where one or two holes remain in each sector. Then the final twisting of the second in the direction of the circumferential displacement of the spiral of each pair of sectors is made, and then the first.EFFECT: possibility of automating the process of fastening the bell-shaped elements of the vibration isolator.5 cl, 6 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

Bumper with pendilum suspension // 2626435
FIELD: machine engineering.SUBSTANCE: bumper contains the coil spring with the integrated damper, which interacts with the pendulum unit. The lower end of the spring rests against the upper flange of the casing. The pendulum unit is made in the form of the threaded rod with nuts at the ends and the support washers. The upper rubber elastic element is located between the upper spring flange and the support washer, and the lower one is located between the support washer and the plate on which the vibration absorbing equipment is fixed. The spring is made of screw cylindrical form and consists of two parts with facing ends. The first part of the spring has the rectangular section turns with rounded edges, and the second part is made as hollow. The facing end of the first part is located in the cavity of the second part. The segment profile gaps of the spring contacting parts are filled with antifriction lubricant for friction units, containing the mineral oil and the lubricating additive. The packing seal is mounted at the spring second part end to prevent the lubricant leakage. The first part of the screw spring is enclosed by the tube of the damping material, for example, polyurethane. The rigidity of the rubber elastic elements exceeds the rigidity of the spring.EFFECT: efficient damping in the resonance mode and simplified design and assembly.2 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

Shock absorber and vehicle containing it // 2625475
FIELD: transportation.SUBSTANCE: shock absorber contains the device for creating the damping force. The minimum length parameter indicates the hard state in the range (Aa0) during expansion, when the piston rod is pressed inward of the cylinder deeper, than the specified minimum length position (Sa1). The maximum length parameter indicates the soft state in the range (Aa4) during expansion, when the piston rod protrudes from the cylinder further, than the specified position (Sa4) of maximum length. The expansion side parameter between the specified position (Sa1) of the minimum length and the specified position (Sa4) of maximum length includes the parts (Sa1-Sa2, Sa3-Sa4). The part (Sa1-Sa2) indicates the higher change rate in the damping coefficient relative to the piston rod stroke. The part (Sa2-Sa3) indicates the lower change rate in the damping coefficient. The shock absorber of the second embodiment is configured with the damping force characteristic in which the change rate of the compression damping coefficient is larger in the maximum length position area. The vehicle contains the shock absorber, only the rear wheel is equipped with it.EFFECT: improvement of the damping characteristic.9 cl, 18 dwg

ethod for hardening helical cylindrical springs // 2625196
FIELD: machine engineering.SUBSTANCE: method involves winding the spring with a pitch exceeding the pitch of the finished spring, heat treatment, wheel blasting, lumo control, grinding of the ends of the heat-treated spring, compression of the spring until the coils touch. In the final stage, cold work hardening of the outer and inner surfaces of the compressed spring is carried out by blanking and cold work hardening of the compressed spring surface is carried out along the contact line of the coils by means of a hardening device when a compressed spring is located in a die hole. The cold work hardening of the outer and inner surfaces of the compressed spring is carried out by expanding the coils of the spring to the surface of the die hole with the punch entering it, wherein the diameter of the die hole is equal to the diameter of the compressed spring. The gap between the die hole and the punch surface is chosen less than the diameter of the coil spring by 0.2…5 mm. The cold work hardening of the compressed spring surface along the contact line of the coils is carried out by compressing the springs with a force of 5…300F3, where F3 is the spring force at maximum deformation.EFFECT: increased productivity of hardening and the stability of the elastic properties of the spring.3 cl, 3 dwg

Pendulum mesh vibration isolator // 2624762
FIELD: machine engineering.SUBSTANCE: vibration isolator contains a housing, an elastic element and a pendulum suspension. On the base there are two parallel-connected elastic elements located between the top cover and the base. The elastic element comprises of a spring with a built-in damper and a bushing of a three-dimensional mesh coaxially-located inside or outside the spring. The spring is of a screw cylindrical form and consists of two parts with facing 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 screw spring is enclosed by the tube of a damping material, for example, polyurethane. The lubricant for friction units, containing the mineral oil and the lubricating additive, is used as the antifriction lubricant of the spring contacting parts.EFFECT: increased vibration isolation efficiency.3 dwg

Control method of vibration technological machine vibration field structure, based on using dynamic damping effects and device for its implementation // 2624757
FIELD: machine engineering.SUBSTANCE: control method includes the motion transformation device of nonlocking screw mechanism with the flywheel nut introduction into the system design engineering scheme. Generate the additional stabilizing movements of the working body to provide the adjustment and setting of the vibration system. The device generates the control action at the specific point of the shake table working body. The force application point at the working body is able to change as the result of the structural unit displacement along the working body by means of the synchronously operating two electric drives. The electric drives provide the movement of the upper and the lower parts of the design engineering unit with the help of the driving screws. The information from the sensors, controlling the vibration state and the systems, goes to the special software unit.EFFECT: operating modes adjustment simplification.2 cl, 3 dwg
Resilient dish-shaped element // 2624134
FIELD: machine engineering.SUBSTANCE: dish-shaped element comprises two resilient elements set oppositely in respect to the vertical axis of a separating element. Each resilient element comprises dished resilient surface in the form of a truncated cone, three through grooves forming two truncated conical surfaces connected by three fins are provided on the above surface in the plane parallel to the bases of the truncated cone. Damping cylinders made from cast polyurethane are fixed in the central part of the separating element coaxially to the resilient elements and enter the holes at the truncated conical surfaces' vertices with a gap. Damping elements of bush type with clearance enter the dampening cylinders, they are secured by means of the resilient rings. The resilient rings are secured in holes at tops of the truncated cone surfaces of the resilient element. The separating element is made of three layers: the central layer is made of a rigid vibration damping material, for example of the "Agat" type, and the symmetrically arranged upper and lower layers are made of a mesh frame filled with sponge rubber.EFFECT: increased efficiency of vibration isolation in resonance mode.2 dwg
Kochetov's dry friction damper // 2624133
FIELD: machine engineering.SUBSTANCE: damper contains the housing designed as a cylinder with a bottom, where the piston is located. The piston consists of parallel disks, rigidly connected to each other by a rod. The disks are installed with reference to internal surface of the housing with a clearance, and between them the frictional material is placed. A spring loads the lower disk. The cavity between the piston and bottom of the damper housing is filled with a frictional material, e.g., mesh texture elements. The upper disk loads the bottom surface of the disk-type elastic element. The power closure of elastic element with a damper is ensured by means of the spring located in the lower part of the piston. For fixing of the piston in the damper housing the lock ring fixed in the groove of the internal surface of the housing cylinder is provisioned. The lock element contacts to the upper disk and keeps the piston in an initial condition. As a friction material located between the flanges of the piston, a sintered friction material based on copper is used.EFFECT: increased efficiency of vibration isolation in resonance mode.3 cl, 1 dwg
Inertial vibrator isolator // 2624132
FIELD: machine engineering.SUBSTANCE: vibrator isolator contains a lever connected to the base by means of a hinge and an elastic connection. The base is S-shaped in the form of horizontal shelves interconnected by means of a vertical pillar. A two-arm lever is attached to the vertical pillar with respect to its center by means of a hinge. Springs with built-in damper are placed symmetrically about the hinge axis. The vibration-isolating object is attached to the end of the two-arm lever, opposite to the attachment of one of the springs. Each spring is helical cylindrical and consists of two parts with coils of rectangular cross-section. The second part of the spring is hollow. The facing end of the first part is located in the cavity of the second part. The first spring part is made with rounded edges to place the antifriction lubricant. The packing seal is mounted at the end of the second spring part to prevent the lubricant leakage, and the first part is enclosed by the tube from the damping material, for example, polyurethane.EFFECT: increased vibration isolation efficiency.2 dwg
Kochetov's spring bumper with pendilum suspension // 2624130
FIELD: machine engineering.SUBSTANCE: damper consists of compression spring interacting with base of case and the pendulum suspension. The pendulum suspension is designed as a threaded rod, connected at one end to support arm, and the other - with the thrust washer and a nut. The nut is connected with the hub interacting with the upper end of the spring. The base consists of an upper and lower plates connected by vertical racks. The upper plate is fixed composite friction material and a mesh damper containing interacting elastic elements of a mesh frame filled with polyurethane. The elastic bushing is located in the central part of the bag and is rigidly connected to the central plate. The plate divides the package into two identical parts: 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. In each elastic element the damper of dry abrasion made in form of an upper and lower sleeve is located. The sleeves are connected to the interference and form a friction pair. The elastic bushing is placed inside coaxially and with a clearance. The threaded stud is located inside the elastic bushing.EFFECT: efficient damping in resonance mode and simplified design and assembly.2 dwg
Disk-shaped vibro-isolator // 2624127
FIELD: machine engineering.SUBSTANCE: vibro-isolator comprises a frame in which an elastic disc-shaped element is mounted. The lower part of the framework consists of a base made as a disk with ring inner groove. The resilient element contains two flat resilient coaxially located rings. The rings are coupled to each other by three resilient flat plates between the grooves inclined to the rings' axis. The bottom ring of the resilient element is located in the disk groove. To the bottom part of the bottom ring the ring out of friction material is secured to ensure dry friction. The top part of the framework is made as a cover being a disk with a central annular groove. The cover is rigidly connected with the upper ring of the resilient element by screws. A two-layer shock-absorbing structure is arranged in the central ring groove of the cover, and a mounting plate to hold the unit vibrations of which are to be isolated is fixed on the noted layer. The top layer is made of polyurethane, and the bottom layer is made of rigid shock-absorbing material, for example, of "Agat" type.EFFECT: increased efficiency of vibration isolation in resonance mode.3 cl, 2 dwg
Vibration isolator for process equipment // 2624120
FIELD: machine engineering.SUBSTANCE: vibration isolator contains a casing and elastic elements that interact 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. The elastic elements are made in form of helical springs, the surface of which is covered with a layer of vibration cushioning mastic of the type "VD-17" or polyurethane.EFFECT: increased efficiency of vibration isolation in resonance mode.1 dwg
Package of belleville springs // 2624119
FIELD: machine engineering.SUBSTANCE: package of belleville springs consists of a body with a base and elastic and damping elements arranged in it in the form of belleville springs connected into a package. The body is made in the form of a cup with a base and a cylindrical shell rigidly connected to it. The elastic elements of the plate type are located inside the cylindrical shell and are connected into the package by means of damping elements. The damping elements are made in the form of balls made of an elastic damping material, for example, a steel spherical shell. Vibration cushioning material, for example polyurethane, is placed inside the shell. Fixation of a package of belleville springs is carried out along the sphere surface, spaced at a certain distance from its diametrical plane. The distance depends on the inner diameter of the conical spring washer and the load on the protected object. The body base and the platform for installing the protected object are made of a vibration cushioning material.EFFECT: increased efficiency of vibration isolation in resonance mode.3 cl, 2 dwg
Kochetov's damper for vibration isolation system // 2624118
FIELD: machine engineering.SUBSTANCE: system comprises four vibration isolators mounted on a base and rigidly connected to a supporting platform by bolts. Every vibration isolator consists of a base and a pendulum suspension. The base of every vibration isolator includes horizontal supporting plates coupled by vertical partitions. Each of the resilient elements is in the form of a spring, inside which a damper is located between the support rings for fixing the ends of the springs. The damper is made in the form of a sleeve inside which a piston with screw grooves on its surface is located with a gap. The piston is connected to a rod installed in the sleeve cover. A sealing cuff is fitted around the rid in the sleeve cover. The piston and sub-piston cavities of the damper are filled with antifriction grease. A vibration damping gasket is installed between the upper support ring and the upper part of the rod, as well as between the lower support ring and the lower part of the sleeve.EFFECT: increased efficiency of vibration isolation in resonance mode.4 dwg

Low-noise ship cabin // 2624117
FIELD: transportation.SUBSTANCE: cabin comprises a metal stamp-welded frame consisting of load-bearing profile structures, inside which the packages of noise, vibration and heat insulating elements are installed. Every said element includes the layers of vibration damping material on the bitumen base, a layer of a sound-absorbing material and a perforated decorative panel. An air gap is formed between the panel and said layer of porous sound absorbing material. The cabin frame is connected to the load-bearing ship structures by means of the top and the bottom suspensions. The sound-absorbing material is made in the form of a plate from mineral cotton on the basalt base, and is lined with an acoustically transparent material over its entire surface. A suspended acoustical ceiling consists of a rigid frame suspended to the ceiling. Inside the frame, the sound-absorbing material wrapped in the acoustically transparent material is placed. A perforated sheet is attached to the frame. Unitary sound absorbers of the spherical shape are additionally located under the suspended acoustical ceiling.EFFECT: reducing the transmission of noise and vibrations.3 dwg

Vibroisolated operator stand // 2624115
FIELD: machine engineering.SUBSTANCE: stand contains a body in the form of upper and lower rectangular plates, between which resilient elements of different rigidity are placed. Cylindrical screw resilient elements are fixed by means of pins to both plates. Rubber resilient elements form a closed contour along the perimeter of the lower plate. One resilient element is installed in the center of the lower plate. All rubber resilient elements have different heights. Every cylindrical screw resilient element is made as a spring with built-in damper. The spring is made of screw cylindrical form and consists of two parts with facing ends. The first spring part has the 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 contacting spring parts segmental profile gaps 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 from the damping material, for example, polyurethane. As an antifriction lubricant, a lubricant for friction units is used, containing mineral oil and a lubricating additive.EFFECT: increased vibration isolation efficiency.3 dwg
Vibration insulation system of propelling engines // 2624114
FIELD: engine devices and pumps.SUBSTANCE: system contains a rigid support frame and vibration isolators connecting the frame to the base. The engine and diesel generator are fixed to the support frame through the vibration absorbing gaskets. The support frame is connected to four vibration isolators, which are fixed to the ship bulkhead. The bulkhead is connected to the support frame by means of two resilient damping elements, made in the form of a rubberized cable. The base of vibration isolators is connected to the ship bulkhead through the vibration absorbing element by means of fastening elements. A vibration isolator contains a base, elastic mesh elements, upper and lower pressure washers. The base is located in the middle part of the vibration isolator and is made in the form of a plate with fastening holes. The elastic mesh elements are rigidly connected to the base by means of support rings. In the upper and lower elastic mesh elements, a dry friction damper is axially symmetrically disposed in the center. The damper is made in the form of a pressure washer, rigidly connected to a centrally located ring, covered by a coaxially located ring rigidly connected to the base.EFFECT: increased effectiveness of vibration insulation and simplified design.4 dwg

ethod to strengthen cylindrical helical springs // 2623847
FIELD: machine engineering.SUBSTANCE: method involves winding the spring with a pitch which exceeds the pitch of the finished spring, lumocontrol, grinding the ends of the heat-treated spring, shot blasting and predeformation. In the final stage, after predeformation, the outer and inner surfaces of the spring are hardened in one operation by pressing using a hardening device when the spring is in the die hole by swelling the spring coils to the surface of the die hole by the punch entering it. The gap between the die hole and the punch surface is chosen to be less than the diameter of the spring coil by 0.2…5 mm.EFFECT: increased stability of the spring elastic properties.1 dwg

Torque loading mechanism // 2623784
FIELD: machine engineering.SUBSTANCE: torque loading mechanism (1) includes a gear transmission assembly (2) and an actuator assembly (3). The gear transmission assembly (2) comprises an inner part (4) and outer parts (5) and (6). The inner part (4) contains an eccentric shaft (7) with balancing weights (11) and (13) with oil counterweights (40) and (41) fixed thereto, which are automatically filled with the estimated oil volume during its operation. The unbalance is eliminated due to uneven oil distribution inside the mechanism.EFFECT: reducing vibration.2 dwg
Vibration isolator for textile machines // 2623633
FIELD: machine engineering.SUBSTANCE: vibration isolator contains a housing in the form of a base and a lid with a hole for a vertical post and a spring with an integrated damper. The lid is connected to a vibration-isolating object by means of an S-shaped lever. A bevel is made on the lid, and bend site of the upper shelf of the S-shaped lever rests upon the bevel. The lower shelf is fixed with a stud at the base of the vibration isolator. The spring is made of screw cylindrical form and consists of two parts with facing ends. The first spring part has the 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 contacting spring parts segmental profile gaps 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 from the damping material, for example, polyurethane. The lubricant for friction units, containing the mineral oil and the lubricating additive, is used as the spring contacting parts antifriction lubricant.EFFECT: increased vibration isolation efficiency.2 dwg
Vibration insulator for machines // 2623615
FIELD: machine engineering.SUBSTANCE: vibration isolator contains a housing in the form of two vertical posts of elastic material and a spring with an integrated damper. The posts are rigidly fixed on the base of the vibration isolator. The holes for the posts are made in the lid with the formation of gaps between the posts and the lid. The lid is connected to a vibration-isolating object by means of an S-shaped lever. A bevel is made on the lid, and bend site of the upper shelf of the S-shaped lever rests upon the bevel. The lower shelf is fixed by a stud at the base of the vibration isolator, the spring is made of screw cylindrical form and consists of two parts with facing ends. The first spring part has the 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 contacting spring parts segmental profile gaps 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 from the damping material, for example, polyurethane. As an antifriction lubricant, a lubricant for friction units is used, containing mineral oil and a lubricating additive.EFFECT: increased efficiency of vibration isolation in resonance mode.3 dwg
Height structures vibration damper // 2623508
FIELD: construction.SUBSTANCE: method is carried out by using natural technology, which consists in repeating the vibration of the main tree trunk by the lateral branches in the form of inverted pendulums. The vibration damper of high-rise buildings is an oscillating link that joins the upper part of the high-altitude tower, the resonance oscillation of which must be suppressed. The vibrating link is a series of flexible, sturdy conical rods of various lengths, weights and diameters rigidly fixed by the end of a larger diameter to the upper outer part of the tower, and the end of a smaller diameter directed vertically upwards, which gives them the appearance of tree branches. The branches of the vibrational link may have similar branches of smaller size. Each branch of the oscillatory link has its own individual amplitude-frequency characteristic (AFC), which differs from the AFC of the main tower of the tower, which excludes their collision with each other during the oscillation process. The geometric parameters of the branches of the oscillatory link are calculated by special mathematical models.EFFECT: invention makes it possible to increase the efficiency of the vibration dampener of high-rise buildings and to expand its functional capabilities.3 cl
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

Spring net-shaped vibration isolator // 2623016
FIELD: machine engineering.SUBSTANCE: vibration isolator contains the housing, parallel installed the elastic elements and the pressure washers. The elastic elements are made in the form of the spring with the integrated damper, connected to the upper and lower pressure washers. The bush of the bulk net structure is located inside the spring between the pressure washers. The spring is made of screw cylindrical form and consists of two parts with facing ends. The first spring part has the 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 contacting spring parts segmental profile gaps 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 from the damping material, for example, polyurethane. The lubricant for friction units, containing the mineral oil and the lubricating additive, is used as the spring contacting parts antifriction lubricant.EFFECT: increase of the vibration isolation efficiency.2 dwg

Shock absorber // 2622517
FIELD: machine engineering.SUBSTANCE: shock absorber comprises a piston (2) connected to the rod (3). Middle cylinder (5) located concentrically around the inner cylinder (4). The outer cylinder (6) is located concentrically around the middle of the cylinder, the inner cylinder slides telescopically average cylinder. Middle cylinder comprises a base (11) at one axial end and a cover (12) of the middle cylinder. Thrust ring (13) disposed between the inner cylinder piston (7) of the inner cylinder and the cover cylinder medium at a predetermined distance from the inner cylinder piston. The inner cylinder at an axial end of the piston is connected to the inner cylinder.EFFECT: reduction in the length of the cylinder.8 cl, 3 dwg

Compressible elastomer spring (optional) // 2622433
FIELD: machine engineering.SUBSTANCE: spring comprises a solid body of elastomeric material. The solid support extends upwardly in the axial direction at one end of the solid body. The protrusion is located at the opposite end of the axial support. The spring according to the first embodiment comprises an annular ridge of triangular cross section on the opposite end of the axial support. The spring according to the second embodiment comprises a rigid element attached to the solid body in the moulding process. The support passes through the central hole in the rigid element. The spring according to the third embodiment comprises an axial hole formed through the thickness of the solid body and supports, and an annular ridge. The spring according to the fourth embodiment comprises a solid body with an axial hole and an annular ridge, as well as a rigid element having a central hole and a plurality of annular protrusions extending through these holes. The spring of the fifth embodiment comprises a plurality of elastomeric gaskets with axial support and peripheral protrusion, and a plurality of plate elements having a central hole and a peripheral folded edge tapering towards the center axis.EFFECT: creation of a compressible elastomeric spring with a new device for attaching the elastomeric gaskets to the plate elements.10 cl, 8 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

Oscillation limiting unit, and device, structural segment for building block and wind-driven power plant with oscillation limiting unit // 2621427
FIELD: physics.SUBSTANCE: unit (100) has a support structure (150) with a base plate, a pendulum system (101) with a pendulum weight (110) and a suspension system (120) for suspending a pendulum weight (110) on the support structure (150). The suspension system has a suspension (130) of the pendulum weight travelling in the direction of suspended axis, where the pendulum weight is fixed on the support structure by means of a hanger (170). Thereby the suspension system (120) has a plurality of pendulum spring elements (140) extending in the direction of suspended axis ("НА"), and the pendulum spring element (140) of the plurality of pendulum spring elements has a spring (141) designed as a compression spring and equipped with a spring plate (181 ). The hanger (170) of the suspension (130) of the pendulum weight has a swivel head (131) which is fixed to the support structure and has a pendulum bearing formed as a sliding bearing. The pendulum spring element (140) has a spring holder which is adapted to change the adjustment of the spring length, i.e. for adjustment of the spring force. The spring plate (181) is, on the one hand, placed at a distance from the base plate, which, on the other hand, has a support profile (182) which carries a variably controlled adjustment mechanism (180), wherein the support profile (182) has an end stop and an actuator.EFFECT: reliable decrease of the oscillation amplitude.28 cl, 9 dwg

Control valve for pneumatic elastic element and vehicle seat containing control valve // 2620516
FIELD: transport.SUBSTANCE: set of inventions relates to vehicle seat suspension. Vehicle seat comprises a mechanical oscillating system and pneumatic elastic element, and a system for weight-dependent static seat height settings. Proposed system comprises control valve (16) and the control element (18). Control valve (16) comprises air outlet with a pusher (26), air injection channel with a pusher (27) and an additional channel with a pusher (28). The control element (18) has a neutral position (47), wherein all channels of the control valve (16) are closed, position (48) of air exhaust in which it controls the first control means (19) and the air outlet is open, air injection position (49) in which it controls the second control means (20) and the air injection channel is open, and an additional position (50), in which it controls the second (20) and the third control means (21), and the air injection channel and additional channel are open.EFFECT: invention provides increase in height adjustment operation in point of sensitivity, speed, and complexity of static height adjustment of the vehicle seat.13 cl, 8 dwg

Cylinder-piston unit with piston valve // 2620282
FIELD: machine engineering.SUBSTANCE: cylinder-piston unit (10) contains a cylinder (11) and a piston (61) having a longitudinal opening and guided in it by a piston rod (51). The piston (61) is sealed against the internal walls (12) of the cylinder and separates the displacement space (91) from the equalization space (92). There is one discharge piston (31) in the equalization (92) or displacement space (91). The discharge piston (31) is supported by a compression spring (33) and sealed against internal walls (12) of the cylinder. One disc valve together with the surface on the side of the displacement space limits the path. The path cross-sectional area, multiplied by the reciprocal length of the path and the reciprocal arithmetic mean deviation Ra of the bounding surface profile, is less than 50.EFFECT: high damping and braking power.6 cl, 10 dwg

Vibration isolator // 2620276
FIELD: machine engineering.SUBSTANCE: vibration isolator contains a housing and an elastic member interacting with an object. The housing is configured in the form of two interconnected angles. The upper angle leg is supported by the elastic member and rigidly connected to a bar entering an opening in the elastic member. An equipment support member interacts with a shim connecting the angles in the lower part of free legs. The elastic member consists of two sequentially connected parts. The upper part is a coiled spring. The lower part is made of an elastomer, e.g. rubber or polyurethane. The rigidity of the elastic member upper part is two times greater than the rigidity of its lower part. The surface of the coiled springs is coated by a layer of vibration damping material.EFFECT: increased efficiency of vibration isolation in resonance mode.1 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

Hydraulic shock absorber with electric generator // 2619884
FIELD: mechanical engineering.SUBSTANCE: hydraulic shock absorber comprises a working cylinder 1 with a working fluid and mounted within an integral stem 3 and piston 5 with a compression valve 6 and return valve 7. Compensation chamber 11 is connected to the working cylinder 1 and has an additional piston 12 inside, which separates the working fluid and the inert gas, and a separating piston 14 with the valve 15. The compensation chamber 11 is formed in the cavity of the rod 3. Around the middle part of the compensation chamber 11 there is coil 16 of the linear electric generator, which is concentrically positioned annular permanent magnet 17. The working fluid in the compensation chamber 11 is a ferromagnetic liquid.EFFECT: energy recovery of the shock absorber elements vibrations into the electrical power.1 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
Balancing weights for motor vehicles' wheels // 2619150
FIELD: transportation.SUBSTANCE: balance weight (100) for motor vehicle wheels has a first outer surface (102) for mounting the balancing weight to the inner peripheral surface of the wheel rim, and a second outer surface (101) opposite the first outer surface (102). Each balance weight (100) comprises at least one guide (203, 204, 205) for guiding the connecting means (303, 304, 305) for placing a stack of several cimilar balancing weights (100).EFFECT: improved manipulation of balancing weights' supply in the balancing machine.9 cl, 11 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
 
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