Method of rubber-metal shock absorber making

FIELD: machine building.

SUBSTANCE: invention relates to machine building. Increasing strength of connection between resilient rubber element different formulation rubbers prior to curing by accelerated forced diffusion, effecting with ultrahigh frequency current within 2,200–2,450 MHz for 2.5–3.5 minutes at power of 650–700 W. Simultaneously non-uniformly heating resilient rubber element workpiece array in range of 65–75°C with gradual outer surface temperature decreasing from center to periphery within range of 35–25°C. Resilient rubber element together with plates is installed in heated mold and cured by heat transfer from heating plates.

EFFECT: enabling increasing of bonding strength between different formulation rubbers.

1 cl, 2 dwg

 



 

Same patents:

FIELD: machine building.

SUBSTANCE: package of ting springs comprises external and internal ring resilient cone discs. Discs are located between the base and cover. Base in made as cylindrical sleeve, one of the internal discs rests against it. Cover is made as bush with T-shape cross-section and throughput hole. Another internal disc rests against the horizontal flange of the cover. The vibration-isolating object is installed on the cover. The internal discs are installed on the cover and base via the vibration dampening rings. The external and internal discs are made as truncated cone surfaces, and contain three radial slots. Slots are directed from lesser base to larger base. Each of the radial slots is ended by hole for stress relieving. On the lid the mesh damper is installed, it contains base, resilient mesh element and washers interacting with bushings. Base of the damper is made in form of the plate with mounting holes. The resilient mesh element is secured in by top and bottom washers. Bottom washer is rigidly connected with the base. Top washer is connected with the central ring enclosed by coaxial ring rigidly secured to the base.

EFFECT: increased efficiency of vibration isolation in resonance mode.

6 cl, 2 dwg

FIELD: machine building.

SUBSTANCE: invention relates to devices and method of the vibration protection of vehicles, in particular to shock-absorbing gaskets under bases of rails or bars of the pointworks, as well as for vibration protection of the construction structures and industrial equipment. Method of shock-absorber stiffness regulation includes addition of the synthetic polypropylene fibre from 0.1 to 12 wt % to wet porous rubber mixture based on unsaturated rubber or mixture of rubbers, as calculated to weight of the rubber mixture with further creation and vulcanisation of the produced products. At that amount of the polypropylene fibre is calculated as per the preliminary obtained by tests relationship between the shock-absorber stiffness and content of fibre within the specified range and ensuring the required stiffness.

EFFECT: method produces the porous shock-absorber with set Young's modulus characterised, in principle, by the linear relationship of the Young's modulus and content of the specified polypropylene fibre.

18 cl, 1 dwg, 8 tbl

FIELD: machine building.

SUBSTANCE: package of belleville springs includes at least two pairs of belleville springs. Each pair contains opposite installed and free connected large bases of the cone disks. The belleville springs are located with clearance in the cylindrical casing. Bottom part of the casing is rigidly connected with the base. Lid is free located in top part of the casing with clearance. The base and lid have centring cylindrical shoulder, on it the small base of outermost pairs of the belleville springs is centred. On the cylindrical surface of the casing the groove can be made. The small bases of the cone disks of the adjacent pairs are connected with each other by damping element made in form of three-step disk. On the lid the mesh damper is installed, it contains base, resilient mesh element and washers interacting with bushings. Base of the damper is made in form of the plate with mounting holes. The resilient mesh element is secured in by top and bottom washers. Bottom washer is rigidly connected with the base. Top washer is connected with the central ring enclosed by coaxial ring rigidly secured to the base.

EFFECT: increased efficiency of vibration isolation in resonance mode.

7 cl, 2 dwg

Vibration isolator // 2550646

FIELD: machine building.

SUBSTANCE: vibration isolator has two support crossbars and set of resilient ring springs with shoulders. Ring springs with shoulders are made out of pressed wire, and are secured with each other by securing elements in pairs, and are arranged diametrically at opposite surfaces with angular displacement. The support crossbars are made as rotation bodies with two sockolets, in one sockolet thread holes are made to secure to the base and protected object, in the another sockolet helical slots are made to screw-in the screw metal spring. The spring is installed inside a set of ring springs.

EFFECT: exclusion of resonances in work range of frequencies of the mechanical system, stability of elastic and dampening properties of the vibration isolator.

5 dwg

FIELD: machine building.

SUBSTANCE: vibration isolator comprises a circular mounting flange (1), a pair of cone-shaped resilient damping elements (2), bushes with dish flanges (3, 4), a stud (5) with threaded ends. The resilient damping elements are made from a coil (6) wound from springy metal wire with turn pitch being equal to the coil diameter, and pressed into a cone shape. The coil is made from a pair of interconnected links with different diameters of springy wire which are wound in coils of different diameter, and is laid with tension crosswise. The link with greater coil diameter is laid over the link with smaller diameter. The method to produce such a vibration isolator includes the following operations. Both coils are stretched up to the turn pitch equal to the diameter of the respective coil. The coil of smaller diameter is wound onto a mandrel, then the coil of greater diameter is wound over it crosswise to form a resilient barrel-like element with further moulding into a cone-shaped resilient damping element. The bigger and the smaller bases of the resilient damping elements are fixed to respectively the mounting circular flange and the inner surfaces of dish flanges which have been treated by sand, with the help of sound glue joint with pressing by the stud. The cone-shaped resilient damping elements are impregnated by lubricating mixture.

EFFECT: higher reliability, longer life of a vibration isolator, protection against vibration in cross directions.

2 cl, 6 dwg

FIELD: machine building.

SUBSTANCE: inventions group relates to machine building. The vibration isolator contains two elastohysteresic bell-shaped elements out of the wire material "Metal rubber", which central holes contain two fixed bolts secured using the limiting washers and nuts. Each elastohysteretic element is made in form of two cones with smooth transition to each other or in form of a cylinder and top cone glued with each other. The elastohysteretic elements are wrapped with the reinforcement cord or cord pieces, over it the tensioned spiral is wound. The vibration absorber production method consists in the following. Two bell-like elements are made by chill pressing, and bolts are installed in their central holes. The elastohysteretic elements are glued to each other by large foundations, then they are wrapped with the reinforcement cord, and over cord the tensioned spiral is wound. In one contact layer of the turns are in planes parallel to the shaped surface, and in the another layer - in planes parallel to the frontal plane. The made billet is pressed, and bolts are secured in it. The central zone of the billet is pressed in radial directions, and top and bottom parts in direction of the vertical axis.

EFFECT: improved elastohysteresis properties, simplified design and assemblage process of the vibration isolator.

5 cl, 8 dwg

FIELD: machine building.

SUBSTANCE: inventions group relates to machine building. The buffer contains a cylinder and installed in it one or two compression springs. The tail is made cone and is inserted in the cone counter-holes created by the pushers of the damping cartridges. The damping cartridges are installed in the buffer device back to back. Each damper cartridge contains body, cover screwed on the body and locked against loosening by the radially installed lock-screws. In the buffer under first option inside each cartridge body the multi-layer multispan corrugated ring packages are installed, they are made out of steel polished corrugated tapes "corrugation in corrugation". Between the packages the rings cut into sectors are installed, on them the multi-layer packages rest as "corrugation top to corrugation top". The pushers are also made in form of sectors. Butts between the ring sectors, pusher sectors are uniformly distributed over the circle and are located under peaks of corrugations cavities of the packages. In the buffer under the second option inside each cartridge body the elastohysteretic element is installed, it is made out of wire nonwoven fabric MR (metal rubber) made either in form of thick wall cylinder or separate sectors. On the elastohysteretic element the pusher-ring is installed, it is made out of sectors. In the elastohysteretic element is made in form of the separate sectors then the pusher sector is installed on the each element sector. Between the buffer device cover rigidly connected with casing and cartridges at spacer is installed. The buffer cylindrical part goes outside via the guide hole in the cover. End part of the buffer has boring, in which using the nut the cone billet is fixed, the billet is made out of wire material MR or tough rubber or tough polymer.

EFFECT: increased damping properties, decreasing of kickback and simplification of the buffer design.

4 cl, 9 dwg

FIELD: machine building.

SUBSTANCE: inventions group relates to machine building. The vibration isolator contains casing with flange with two cone resilient bushings out of the wire material "Metal rubber"; clamping sleeve with hole for securing of the vibration-isolated object to the vibration isolator; cone support installed on the clamping sleeve; base on which casing is installed. The radial cross-section of bushings is hexagon with sides, antisymmetric relatively to its main diagonal, and rounded peaks. On the clamping sleeve a flange is made, the cone support rests in its end face. The cone cover is installed on smooth cylindrical part of the clamping sleeve and is centred on it. On the outside surface of the cone support a flat support platform is made. The axial tension of the resilient bushings is provided by tightening of the round nut installed on the thread end of the clamping sleeve. The axial tension crated in the resilient bushings is controlled by size between the flat end face of the cover and flat belt made on the external surface of the cone support, and the vibro-isolated object is secured to the vibration isolator using the screw inserted in the clamping sleeve and resilient washer. On the support surface of the casing flange the centring collar is made, and in the base a ring groove is made, in which the collar is installed, and base is centred as per its outside diameter. Method of the vibration isolator assemblage means consequential pressing of the resilient bushings in casing of the vibration isolator, control of the axial tension and securing on the assembled base detail.

EFFECT: decreasing of the dynamic loads on the object both in resonance, and in above resonance zones, and increasing of the vibration isolator service life.

7 cl, 13 dwg

FIELD: machine building.

SUBSTANCE: invention relates to machine building. The vibration isolator contains a base, elastic mesh elements, upper and lower press washers. The base is located in the middle part of the vibration isolator and is designed as a plate with fastening holes. The mesh elastic elements are rigidly connected to a foundation by means of backup rings. In the upper mesh elastic element at the centre the damper of dry abrasion is axisymmetrically located. The damper is designed as the upper press washer, rigidly joint with centred ring enclosed by the axially located ring, rigidly connected with the base.

EFFECT: higher efficiency of vibration isolation in resonance mode, simplified design and assembly.

4 cl, 2 dwg

FIELD: machine building.

SUBSTANCE: invention relates to machine building. Vibration isolator contains a base with a cover, with elastic mesh elements and inertial mass between them. The base is composed by a plate with mounting holes. The cover is designed with a central threaded hole for fastening of vibration isolated object. The inertial mass consists of opposed washers fastened to each other by vibration damping material. From above and from below of the inertial mass the mesh elastic elements with fastening washers are located. The fastening washers are rigidly connected to a base, cover and inertial mass.

EFFECT: higher efficiency of vibration isolation in resonance mode, simplified design and assembly.

5 cl, 2 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to device metal strip heating in direct-fired furnace. Device for induction preheating of metal strip is arranged ahead of direct-fired furnace in direction of metal strip feed. Air feed means are located ahead of aforesaid device for airing said strip.

EFFECT: higher quality and yield of finished products.

19 cl, 1 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to printing and can be used for imaging with the help of ink containing colour-changing metal or magnetic plates. Method of leveling multiple directed nonspherical plates supported by lengthwise tape with coating containing nonspherical plates oriented in magnetic field. First and second magnets are arranged at first side of tape feed and second magnet is arranged between first and third magnets on second side of tape feed path. First and third magnets feature identical polarity. Second magnet features polarity unlike that of said first and third magnets. First magnetic field surrounding the feed path exists between first and second magnets. Second magnetic field surrounding the feed path exists between second and third magnets. Magnets are arranged so that multiple nonspherical plates directed by magnetic field and moved along tape feed path make first turn on passing by second magnet during relative displacement of tape and magnets. Proposed method comprises relative displacement of at least tape supporting the plates, or magnets that make two pairs of complementary tractive magnets. Multiple plates oriented in magnetic field can perform multiple turns.

EFFECT: higher light reflectance, better chromatic properties of printed articles.

14 cl, 11 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to decoration of plastic surface, particularly, to applying patterns on plastic substrate. Proposed method comprises: applying layer of paint including magnetically oriented pigments on substrate; affecting said paint by magnetic field to orient pigments along force lines to produce pattern on paint layer, and curing paint on substrate. Note here that magnetic field is generated by one magnetic part implanted in plastic substrate being coated.

EFFECT: higher quality of patterns, higher process efficiency.

8 cl

FIELD: electricity.

SUBSTANCE: treated samples are placed in vacuum chamber. Vacuum chamber is filled with reaction gas, which contains at least one gas-monomer capable of plasma polymerisation. Plasma is generated by means of ignition and maintenance of double-staged glowing discharge in two spatially separated discharge volumes, and polymer coat is deposited onto surface of treated sample. The first discharge volume is separated from the second discharge volume with the help of perforated electrode, size of holes in which exceeds 0.1 mm. Treated sample is installed on electrode, which is placed in the second discharge volume opposite to perforated electrode. To electrode that serves as holder of treated sample, potential of shift is supplied versus perforated electrode. In the first discharge volume there might be various types of gas discharge used: inductive high-frequency discharge, capacitance high-frequency discharge, DC discharge. Discharge may be maintained in pulse form. In process of plasma polymerisation distance is adjusted between perforated electrode and electrode that serves as holder of treated sample.

EFFECT: independent control of polymer coat deposition speed, structure and properties of deposited coat with high efficiency of technological process.

14 cl, 1 dwg

FIELD: working of metals .

SUBSTANCE: device comprises power source, controlled frequency converter, step-up high-frequency resonance transformer with working needle electrode, and gas-dynamic unit with gas duct and nozzle for supplying the gas to the treatment zone. The output of the controlled frequency converter is connected with the high-voltage electrical gas discharging unit of plasma generators having the step-up high-frequency transformers. The low-voltage windings of the transformers are interconnected in parallel and are connected with the controlled frequency converter. The high-voltage windings are connected with the needle electrodes concentrating electromagnetic energy. The electrodes are axially aligned and are mounted inside the nozzle. The nozzles provide the ionized agent to be homogeneously distributed over the surface of the material mounted on the receiving drum that is actuated from the electric motor with the voltage control.

EFFECT: expanded functional capabilities.

5 cl, 4 dwg

The invention relates to the processing of plastics and can be used in chemical, paint, medical and other industries, which manufactured materials with the sticky surface layer and as an adhesive used organic substances, organic solvents

The invention relates to a device for material processing high-frequency electric discharge, and can be applied for processing of plastic films and synthetic fibers for the physical modification of their structure and surface

The invention relates to the production of razor blades, and more specifically to the production of razor blades with a coating of polymeric material deposited on the surface of their edges

The invention relates to dyeing and finishing production of the textile industry, and in particular to methods of printing fabrics made of cellulose fibers

FIELD: working of metals .

SUBSTANCE: device comprises power source, controlled frequency converter, step-up high-frequency resonance transformer with working needle electrode, and gas-dynamic unit with gas duct and nozzle for supplying the gas to the treatment zone. The output of the controlled frequency converter is connected with the high-voltage electrical gas discharging unit of plasma generators having the step-up high-frequency transformers. The low-voltage windings of the transformers are interconnected in parallel and are connected with the controlled frequency converter. The high-voltage windings are connected with the needle electrodes concentrating electromagnetic energy. The electrodes are axially aligned and are mounted inside the nozzle. The nozzles provide the ionized agent to be homogeneously distributed over the surface of the material mounted on the receiving drum that is actuated from the electric motor with the voltage control.

EFFECT: expanded functional capabilities.

5 cl, 4 dwg

FIELD: electricity.

SUBSTANCE: treated samples are placed in vacuum chamber. Vacuum chamber is filled with reaction gas, which contains at least one gas-monomer capable of plasma polymerisation. Plasma is generated by means of ignition and maintenance of double-staged glowing discharge in two spatially separated discharge volumes, and polymer coat is deposited onto surface of treated sample. The first discharge volume is separated from the second discharge volume with the help of perforated electrode, size of holes in which exceeds 0.1 mm. Treated sample is installed on electrode, which is placed in the second discharge volume opposite to perforated electrode. To electrode that serves as holder of treated sample, potential of shift is supplied versus perforated electrode. In the first discharge volume there might be various types of gas discharge used: inductive high-frequency discharge, capacitance high-frequency discharge, DC discharge. Discharge may be maintained in pulse form. In process of plasma polymerisation distance is adjusted between perforated electrode and electrode that serves as holder of treated sample.

EFFECT: independent control of polymer coat deposition speed, structure and properties of deposited coat with high efficiency of technological process.

14 cl, 1 dwg

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