RU2614162C1 - Method for attachment of vehicles parts, mainly of anti-roll stay, and device for its implementation - Google Patents

Abstract

FIELD: transportation.

SUBSTANCE: anti-roll stay has a pull rod, the spherical end of which is fixed between two cavities in the form of two truncated cones, two polyurethane bushings with increased hardness, supported by another polyurethane bushing with increased hardness. The bushing is made on the plug, with internal thread retained from loosening and connected to the external thread formed on the mobile holder cup, on one side of an L-shaped pivotal connection having two cups. The external thread of the pull rod on the other end is connected to the internal thread of the mobile holder of another L-shaped pivotal connection equipped with one cup. Each cup of each fixed holder of two pivotal parts contains a stem with an integral grooved shoulder with an inner cone on each side in the form of a dovetail.

EFFECT: possibility of forces damping in vertical, inclined and horizontal device positions at the maximum suspension movements.

2 cl, 8 dwg

Description

The invention relates to the field of transport engineering, and in particular to methods and devices for damping vibrations of vehicle components, mainly traction of the anti-roll bar, and can be used as a hinge for increased durability in earthquake-resistant components of the construction industry and in the manufacture of pumping equipment.

A known method of mounting the bearing of the suspension parts of cars, in which it is placed between an elastic ring-shaped insert, vulcanized by its outer side to the support housing by a ring-shaped hinge, on the inner wall of which the sleeve is vulcanized.

The proposed technical solution of the Scientific and Technical Center “AvtoVAZ” is industrially applicable, however, the presence of the vulcanization operation during the implementation of the method limits its use in service stations, in small workshops, in garage conditions and when repairing on the road, as well as the complexity and possibility of destruction of the rubber damper from the action of alternating loads, see Patent No. 2090378, B60G 15/06 dated 09/20/1997

A known method of mounting a sliding bearing, the surfaces of which form a pair: metallofluoroplastic and metallofluoroplastic, metallofluoroplastic and polished metal, or in the gap between the bearing and the supporting element install an insert made of metallofluoroplastic used in the implementation, see patent PM No. 58453, B60G 15/06 from 26.07 .2006, In the known method, the elastic insert is vulcanized to the outer and inner bearing housings. For this reason, the known method limits its use directly at service stations, small workshops, garage and road conditions.

There is a method that is implemented in the manufacture of the front suspension strut support, see utility model patent No. 147624, B60G 13/00 of 11/10/2014, in which annular grooves are made in the center of the end surfaces, which requires special equipment during installation. In addition, the parts are made of rubber, which does not exclude the possibility of destruction of the rubber damper from the action of alternating loads.

A known method of mounting a sliding bearing, implemented by the device of the upper bearing guide using metallofluoroplastic front suspension, see patent No. 2331528, B60G 15/06 of 02/10/2008. The device eliminates the ingress of moisture and dirt into the sliding bearing in the absence of anther. However, in the six proposed simple variants of automobile damping devices, the presence of vulcanization of elastic inserts limits their maintainability, for example, in garage conditions, in small workshops and in road conditions.

A known method of fastening parts, implemented in the construction of rubber mounts, see patent No. 2508208, B60G 15/00 of 02/27/2014, however, the complexity of the design limits its use directly in garage and road conditions, reducing its maintainability.

There is a method of mounting on the thrust rack of the anti-roll bar of the front suspension, which is implemented by attaching a threaded ball tip on both sides. This method is widely used, for example, on DAEWOO NUBIRA Daewoo vehicles, and is also successfully used in MAKPHERSON front suspensions. The supports are protected from moisture, dirt, rubber, and more recently, polyurethane anthers. However, some parts are not designed for use on our roads. Due to the constant multidirectional load, the above-mentioned racks more often than others fail. Since the metal fatigue factor is triggered from the regular opposite direction of high loads, the gap in the glass of the ball bearings changes and the temperature increases as a result of their impact on the body. When the car is parked outdoors in the autumn and winter periods, condensation forms inside the heated ball bearings. In addition, it should be borne in mind that rubber anthers act as a pump when the car is moving and cannot provide complete tightness of the supports against dust. In the resulting gap, the dust is mixed with condensate, forming a mixture of dirt and ice. Frozen ice in the formed gaps between the spherical tips and the body during the movement of the car begins to melt and the supports begin to knock and creak. For an intensively operated car, the appearance of noise is only a matter of time.

There is a method of fastening parts in a reaction rod of a balancing suspension of a truck, see patent PM No. 69599, F16 15/00 of 06/18/2007 for a utility model in which ball joints with protruding metal fingers are separated from the housings using inserts made of high-strength rubber elastically deformed during assembly. The contact points of the liner with a spherical finger are connected in an integral way using glue or in the process of vulcanization with a high degree of adhesion. Due to the deformation of the liner, its spring properties are enhanced and more effectively damped. However, for the implementation of the method requires special equipment and equipment for vulcanization, which limits the application of the method for repair in garage and road conditions.

A known method of attaching tips with protruding conical metal fingers for attaching a suspension mechanism with a ball joint to the sleeve body, see utility model patent No. 146166, B60G 5/02 of 04/17/2014. In the known method, ball joints with protruding metal fingers for attachment to the suspension mechanism and the metal surfaces of the bushings in which they are located are separated by an elastic liner made of polyurethane. At the same time, they are separated by an integral connection with glue or vulcanization. The connection of an elastic element made of polyurethane with a ball joint can be carried out under the influence of elevated temperature with a high degree of adhesion without the use of glue. The implementation of the known method using polyurethane several times increases the service life of the ball joint with the tip of the jet rod with the elimination of knocking when moving the car. However, the implementation of the known method requires special equipment, both to implement the temperature regime and to control the quality of the temperature-exposed polyurethane, which reduces its maintainability during repairs in poorly equipped workshops, in garage and especially in road conditions, and control of the gluing operation used in the known method, without the availability of testing equipment is almost impossible. The disadvantages of this method include the fact that the deformation of the parts of the spherical-shaped polyurethane liner, not extending outside the sleeve, is carried out by rings that press it with a cover on only one side, and the deformation of the part of the polyurethane protruding beyond the sleeve, not limited in circumference, lead only by a clamping cover and only on one side. As a result, there is a loss of applied axial friction forces.

Therefore, the attachment of the liner in the form of a protruding sleeve made of polyurethane with a ball joint becomes irregular and unstable. Based on the foregoing, it is impossible to produce a dense, high-quality distribution of cold polyurethane liner over the entire surface to the entire depth of the sleeve and to the depth of the ball joint without the additional use of glue or temperature effects. A known method of fastening parts, implemented by a device for distributing pipes, see ed. St. No. 1127671, Bull. No. 45 dated 07.12. 1984, The method is described in the Abstract of the dissertation for the degree of UDC.621.643.411 TSNIITMASHA and published in the journal Energomashinostroyenie No. 10 for 1986, p. 29-31.

This method, implemented when using the device, adopted as a prototype. In a known manner, they clamp and then distribute pipes of steel, for example, Art. 08X14MF with a yield strength of 350-400 MPa, in tube metal boards up to 400 mm thick from St. 22KVD with a yield strength of 180-240 MPa of heat exchangers and high-pressure atomic steam generators, for example, at the plant P-6193, with high reliability of the joints when they work with excess pressure up to 400 MPa.

To implement the known method, the device comprises a sequentially mounted power cylinder, on the rod of which there is a conical sleeve with a lock nut connected to it by means of a thread, a movable sleeve with a cone-shaped collar, in an annular groove of which a liner is fixed in the form of a polyurethane sleeve located behind the collar cone and cone power cylinder of the distributing sleeve. After the tool is inserted into the pipe until the cone of the power cylinder stops and pressure is applied as a result of the oncoming movement of the conical sleeve and the sleeve of polyurethane, the latter diverges and is pressed with a certain force to the pipe. With further movement, the conical sleeve abuts against the end of the movable sleeve and thereby the creation of radial force on the polyurethane sleeve is exhausted and the pipe is dispensed with another polyurethane sleeve. Due to the axial movement of the movable sleeve with a cone-shaped shoulder towards the rigidly pressed cone on the power cylinder, the polyurethane sleeve insert distributes the steel pipe with a force exceeding its yield strength and fix it in the pipe hole. At the same time, the dimensions of its outer and inner diameters increase and the thickness of the pipe decreases. However, when using the known method for mounting parts of vehicles, he revealed the following disadvantages.

Due to cramped operating conditions, the overall dimensions of the parts, in particular the strut supports, for example, rods with hinges of anti-roll bars of the front suspension of vehicles, should be relatively small, including the lengths of polyurethane bushings located on opposite sides to and after the collar. Accordingly, the bushings used to fasten parts, and the dimensions of the polyurethane bushings that radially distribute and hinge the above parts, also cannot have large overall dimensions. The fastening part and the protruding part of the stepped sleeve in the form of a shaft made of polyurethane for mounting sliding or rolling bearings on it require small overall dimensions. This circumstance requires to ensure reliable fastening of the maximum reduction in idling of the conical sleeve and shoulder. The insertion of the conical sleeve and the shoulder into the ends of the polyurethane bushings should begin immediately when they are moved, and the cutting surface and the pressure of the shoulder in both polyurethane bushings on both sides must be immediately provided from both sides immediately when the nuts rotate along the threaded parts of the rod or the movable sleeve. This can not be achieved annular shoulder, made in the form of a cone, when using the prototype. In addition, the presence of a cone on the power cylinder, by means of which the pipe is pressed, distributed and secured, does not allow extending part of the polyurethane sleeve outside the housing and using its protruding part as a shaft for fixing either a sliding bearing or a rolling bearing on it. The disadvantages of this method include the distribution of the pipe in the pipe hole with a force above its yield strength, which actually changes its shape and overall dimensions.

Changing the internal dimensions of the hinges when distributing the above-mentioned parts in the front suspension excludes the mass production of polyurethane bushings and reduces the technological possibilities of using the known method. In addition, the use of the known method does not allow to exclude the possibility of cases of accidental re-distribution, local inflation and the formation of barrel-shaped pipes.

Violations of the shape of the inner surfaces of the hinge parts in the punching areas exclude their mass production. The fact is that the hardness of the polyurethanes used, for example, used in dies, in the known method, when exposed to pressure increases exponentially. Therefore, using them without any problems in a known manner distribute pipes above their yield strength. The claimed method should not allow cases of inflating metal parts, as well as the fact that for each car produced only polyurethane bushings intended for it, thereby reducing the coefficient of unification. In addition, the removal of defects, such as inflating, requires special equipment to remove suspension parts that are subject to inflating by distribution, which reduces the use of the method for mounting and repairing front suspension parts. The re-distribution and inflating of the sleeves and cases of the anti-roll bar can be prevented by increasing the thickness of the hinge walls, however, this will lead to an increase in weight and an excessive consumption of metal for their manufacture. In the known method, the limitation of the bursting of the stepped sleeve is not provided, and the size of the tube plates is not limited.

Additional disadvantages of this method include the impossibility of attaching a stepped polyurethane sleeve of increased hardness in combination with a polyurethane sleeve of low hardness directly on the rod, on the shock absorber shank, where during the implementation of the method it is necessary to apply various forces and at the same time terminate the applied forces.

The implementation of the known method eliminates the use of the rotary part of the hinge as one or more sliding bearings and the installation of a rolling bearing in it, as well as the ability to use it to install a damper in it.

The above disadvantages are eliminated by the claimed method using the device and its implementation in four versions. In the first embodiment, in the general case of using the method, the device comprises a stabilizer bar. The end of the ball-shaped thrust is tightened between two hollows in the form of a truncated cone, made on two polyurethane bushings of increased hardness. On one of the two polyurethane bushings a hole is made for the establishment and its installation under the surface of the end of the ball traction.

To adjust the tightness of the aforementioned end of the ball-shaped thrust fixed in the cup, a propped polyurethane sleeve of increased hardness is mounted on the cork. A rod with the end of a spherical shape has the ability to rotate around its axis by an angle from 0 to 360 degrees and does not have play when it is rotated. The cork is connected by a threaded part to a threaded part of a glass made on one of the sides of one swivel of a L-shaped form. The other end of the thrust with the outer threaded part is connected to the inner threaded part of the movable holder of another swivel of the L-shaped form. Moreover, each of the two hinged joints of a L-shaped form along the longitudinal axis of the tips contains a movable clip and a fixed clip connected to it. In the hollow part of the glass of each fixed holder there is a rod in the form of a stud with a threaded part at its ends. On the non-threaded part of the rod in the middle, a collar is made in one piece with it. On the shoulder, grooves with an external cone are made on both sides, forming a dovetail shape. The threaded part of the rod on the one hand can be used as a tip for mounting the hinged part on the car suspension. On one side, the threaded part of the stem is screwed: a lock nut, a nut, a tapered sleeve with a protrusion and a nut, and an annular groove with an inner cone. A polyurethane sleeve with a hardness exceeding the hardness of high-strength rubber, with grooves made at the ends in the form of an outer cone, is installed on the non-threaded part of the stem. The grooves are fully inserted on the one hand into the groove of the conical sleeve, and on the other hand into the groove of the shoulder. On the other side of the shoulder there is a part of a stepped polyurethane sleeve of increased hardness. One of its grooves with an external cone, on the one hand, is fully inserted into the groove of the shoulder, and the other of its grooves, on the other hand, is inserted into the groove of an annular protrusion made on the hollow part of the glass. The other part of the stepped polyurethane sleeve through the hole formed by the annular protrusion on the glass, brought to the outside of the stationary holder for use as a shaft. If necessary, either a plain bearing or a rolling bearing, or two types of bearings at once, are mounted on the shaft. A stud is made on the stationary cage, and a groove is made on the movable cage, a damper is installed between them, centering and connecting the two cages, forming the first sliding bearing, and a second sliding bearing formed by the body of the movable cage is installed on the polyurethane shaft. Moreover, the length of the damper made of polyurethane bushings of increased strength exceeds the size of each of the spike and groove separated by it. Therefore, after compression of the fixed and movable clips due to the difference, a pre-calculated and experimentally established gap is formed. The gap obtained due to the elongated damper, separating the spike of the fixed clip and the groove of the movable clip, introduced with overlapping each other, provides effective damping of vibration and shock loads during operation of the joints in all spatial positions and at maximum suspension travel.

The above kinematic connection of the parts assembled on the rod is first pre-fixed with a polyurethane sleeve with a hardness exceeding high-strength rubber. To do this, the conical sleeve is rotated along the threaded part of the stem with the nut of the protrusion, and its aforementioned polyurethane sleeve is moved and forced through it. In this case, it is preliminarily fixed to the rod, the surface of the dovetail in the form of a collar, to the surface of the hollow part of the glass and the conical sleeve. In this case, the movement of the conical sleeve is carried out along the threaded part of the rod to its stop in the non-threaded part of the rod. After this, the creation of axial and radial forces on the polyurethane sleeve is exhausted and becomes impossible, after which the metal parts surrounding the polyurethane sleeve will accordingly be affected by forces with a force below their yield strength. The kinematic connection set forth above at this stage is fixed with a nut on the protrusion of the conical sleeve with the adjustment of the previously calculated and experimentally established gap between the nut and the plane of the stationary holder.

The part of the stepped polyurethane sleeve of increased strength that extends beyond the stationary holder and is intended for use as a shaft for a plain bearing does not deform and remains not fixed to the rod. Then, by turning another nut on the opposite side of the rod along its threaded part and the plane of the movable holder, the rod with all previously pre-fixed and pressed parts and an unsecured part of the stepped polyurethane sleeve is stretched along the longitudinal axis relative to the hollow surface of the glass towards its annular protrusion.

At the same time, part of the stepped polyurethane sleeve of increased strength is pressed through, radially distributed and fixed to the hollow part of the glass, the rod, the shoulder and the annular protrusion on the glass. Monitoring the excess of the applied forces when pulling the aforementioned kinematic connection and stopping the pulling is carried out until the sliding bearing reaches its seat with the stop of the bottom of the groove of the movable cage in the damper from the polyurethane sleeve. At this point, the size of the gap measured by the probe will correspond to the size of the previously calculated and experimentally established gap. Stop the broach by stopping the rotation of the nut on the threaded part of the rod.

All metal parts covering and mating with a part of the stepped polyurethane sleeve will be affected by forces not exceeding their yield strength. At the same time, the parts will be reliably motionlessly fixed without the formation of swelling, overdistribution, swelling on the surfaces of the rod and the stationary and movable clips.

At the same time, the previously pre-fixed polyurethane sleeve is finally fixed due to the internal elastic and friction forces caused by the broaching process. Then, with the help of the probe, the previously calculated and experimentally established gap between the fixed and movable clips and the gap between the nut and the plane of the fixed clip on the protrusion of the conical sleeve are set. After tightening the nuts on both sides, the exposed clearances are fixed with locknuts and the assembly of the L-shaped hinge is completed, and then proceed with the assembly of the other L-shaped hinge on the other side of the anti-roll bar. The assembly of the stationary clip and the movable holder of the hinge of the L-shaped form is carried out similarly to the above method. After that, the threaded tips are set at an appropriate angle and the assembled traction block of the anti-roll bar is inserted into the holes intended for its fastening, for example, in the shock absorber earring and the front suspension torsion bar, and fix it with nuts. In this embodiment, when inserting the upper and lower threaded end into the holes for mounting on the front suspension, they are secured only by tightening the nuts.

The rod will be securely fixed, and it cannot be rotated in a stationary holder, and the movable holder can rotate.

The second embodiment of the device, for example, for medium-duty vehicles, in the implementation of the method, when due to the tightness of the conditions it is necessary, when fastening to the front suspension of the assembled unit, to rotate not only the nut, but also the stem.

The implementation of this method is carried out in the following sequence.

To do this, use the traction stabilizer bar, in which on the non-threaded part of the rod without collar additionally fixed movable sleeve with a fixed collar in the shape of a dovetail. In order to be able to move without being pinched on the thread, the difference between the size of the length of the movable sleeve and the length of the non-threaded part of the stem can be up to 2 mm. In this case, the conical sleeve with the stop by means of a thread is mounted on the rod with the ability to move along the guide when it rotates all the way into the end part of the movable sleeve. The conical sleeve of the other side is made with the ability to cover the movable sleeve and move on its surface. To move the movable sleeve along the longitudinal axis, a nut is mounted on its protrusion, mating with the plane of the movable holder, and a lock nut is installed on the threaded part of the movable sleeve to fix the above-mentioned nut. To turn the rod around its axis inside the movable sleeve, a turnkey hex head can be provided at its end. Moreover, for uniform application in all four cases of the device polyurethane bushings with the same dimensions, the total size of the diameter of the rod cross section together with the thickness of the movable steel sleeve is equal to the diameter of the rod of the made device for implementing the method according to the previous first embodiment. In this case, when installing the threaded tip of the above-mentioned anti-roll bar, it becomes possible to fix it in the hole, for example, in the shock absorber ear with the possibility of rotation of the fixing nut and rotation of the rod relative to the movable sleeve fixed in the stationary holder.

At the same time, the movable sleeve protects the stem from pinching and from accidental re-distribution and inflation. As a result of fixing the movable sleeve with polyurethane bushings, more reliable integral polyurethane bushings are obtained. This circumstance makes it possible to carry out an enlarged assembly of all parts of the anti-roll bar rod into an enlarged unit outside the vehicle body, namely, at the beginning, the above-described method is used to press and distribute and pre-fix the polyurethane sleeve with a hardness exceeding the hardness of high-strength rubber to the hollow surface of the glass according to the first embodiment of the device and then finally fixed to the hollow part of the glass broaching previously fixed polyurethane sleeve at. A broach at the same time fixes a part of the stepped polyurethane sleeve on the movable sleeve without distributing and securing its shaft with a pre-machined bearing seat protruding beyond the stationary part of the cage. Then, a damper mounted on a thorn of a stationary cage in the form of a polyurethane sleeve of increased hardness, a groove of a movable cage inserted into the damper, an inserted sliding bearing formed by the body of the movable cage on the shaft, is pressed together towards each other. Press until the tenon bottom rests against the damper surface and the previously calculated and experimentally established clearance is set. Exposed clearance check probe. The aforementioned clearance and the gap between the nut behind the conical sleeve and the plane of the fixed cage are fixed with nuts and locknuts on both sides and the assembly of the L-shaped part of one articulated joint of the anti-roll bar is completed. Then, as described above, the parts are assembled into the assembly of another swivel of the L-shaped form. The method described above, which is mandatory in all cases of its use, fixes the end of the ball-shaped thrust at angles that allow the insertion of threaded tips into the holes of the parts intended for their fastening. Then the position of the thrust is fixed with locknuts to the bodies of the movable clips. The assembled G-shaped swivel with one cup is connected by a rod with the previously assembled G-shaped swivel with two cups. After that, the assembled unit will be ready for installation and attachment to the front suspension parts. In this case, depending on the vehicle model, cramped conditions, the availability of equipment for repairs on the anti-roll bar, two joints made in the first embodiment of the method can be mounted, or two joints made in the second embodiment using a movable sleeve, or two varieties of the aforementioned hinges with a movable sleeve and without a movable sleeve can be mounted on the stabilizer bar.

In this case, it is possible to alternate the installation on the shaft of either plain bearings or rolling bearings.

Similarly to the above-described sequence of operations when implementing the inventive method in the second embodiment of the anti-roll bar, it is possible to fasten the upper suspension parts of the guide of the front pillar of the car. Moreover, for the implementation of the method in the third embodiment, it is necessary to have a movable sleeve on the rod with a shoulder on it. On the shank, the threaded middle part of the shock absorber is pierced to a smooth surface for a length exceeding the size of the movable sleeve, and the thread is left at its ends. In addition, brackets with holes for fixing bolts for fastening it to the car body are made on the body of the fixed clip and they make a place for the installation of the spring.

To implement the method in the particular case of the fourth embodiment, the device is performed as follows. On the inner surface of the hollow part of the glass, a collar in the shape of a “dovetail” is made. The burt, formed by an annular groove acting as a trapezoid, in one case with the base contacts in a sliding fit gap with the surface of the rod without a collar, and in the second particular case it contacts with the surface of a movable sleeve without a collar. In the first case, when implementing a particular case, the conical sleeve fixes a polyurethane sleeve with a hardness exceeding the hardness of high-strength rubber to the hollow part of the glass and the shoulder on the glass by pressure of the nut of the protrusion of the conical sleeve, which is moved across the rod without the shoulder and without performing the “pull” operation, and in the second In the case of a polyurethane sleeve with a hardness exceeding the hardness of high-strength rubber located on the movable sleeve, the conical sleeve is moved along the movable sleeve. In this case, the stepped polyurethane sleeve of increased hardness in the described fourth embodiment of the method in the case when it is located on the rod without a shoulder, is pressed, distributed and secured by an annular protrusion made on the inside of the movable cage from the side of the sliding bearing, without the operation “pulling”, and in the case when the stepped polyurethane sleeve of increased hardness is located on the movable sleeve without a collar and inserted into the rod without a collar, it is pressed through, distributed and fixed also and an annular projection formed on the inner side of the movable holder from the bearing, without surgery "broaching". In both cases, a stepped polyurethane sleeve of increased hardness is fixed to the hollow surface of the glass and the fixed collar made in one piece with it. In one case, they are fixed due to the axial movement of the annular protrusion made on the inner plane of the movable cage from the side of the sliding bearing, which is moved by means of a nut along the threaded part of the rod without collar and the plane of the movable cage. In another case, using a nut moved along the threaded part of the movable sleeve without collar. If necessary, to ensure rotation of the movable cage, a rolling bearing is fixed in it, which is seated on an annular protrusion with an inner cage.

The operation "broach" when implementing the method in this particular case is absent. Distribution is carried out until the movable cage and the stationary cage, forming a thorn-groove connection, moving towards each other along the surface of the damper connecting them along the longitudinal axis by the spike and groove bottoms, do not abut against the end surfaces of the damper from a polyurethane sleeve of increased strength . This will mean that between the stationary holder and the movable holder provided and there is a previously calculated and experimentally established gap. The set gap provides damping of the hinged parts in all spatial positions at maximum suspension travels. At this point, the rotation of the nut ends, and the size of the resulting clearance is additionally checked with a probe.

The graphic materials show a device for implementing the inventive method in four versions.

In FIG. 1 is a view of an embodiment of a draft with a hinged part of an L-shaped form with two glasses connected to a hinged part of an L-shaped form with one glass.

In FIG. 2 shows an exploded view of parts of a device made according to the first embodiment.

In FIG. 3 shows a view of a second embodiment of the device using a movable sleeve.

In FIG. 4 shows an exploded view of the details of a second embodiment of the device.

In FIG. 5 shows a view of the upper support of the guide of the front suspension of the car with a sliding bearing with parts fixed by the claimed method using a movable sleeve.

In FIG. Figure 6 shows an unassembled view of the upper support of the front suspension rail of the vehicle.

In FIG. 7 is a view of the upper support of the front suspension rail with an annular protrusion on a movable cage and a collar formed by protrusions on the inner surface of the hollow part of the glass, pressed by the rod without collar.

In FIG. Figure 8 shows the type of fastening of the bushings using a movable sleeve without collar using a rolling bearing.

A device for implementing the inventive method in general and in particular cases of its use is performed in four versions. To implement the method in the general case of its use, the device contains a stabilizer bar (see Fig. 1 and 2), in which the rod 1 with the end of the ball form 2 is secured without play with an interference fit with the possibility of rotation through an angle from 0 to 360 degrees. Rod 1 is fixed between two cavities 3 and 4 in the form of truncated cones of two polyurethane bushings 5 and 6 of increased strength. The bushings 5 and 6 for adjusting the interference rod 1 are pressed with a polyurethane sleeve 7 of increased strength, fixed inside on the plug 8 through the hole 9, by means of which it is connected to the rod 1. The threaded part 10, the plug 8 is connected to the threaded part 11, made on the outside of the glass 12, a movable clip 13, made on one side of the swivel 14 of the L-shaped with two glasses. After adjusting the desired connection with an interference fit on the threaded connection of the glass 12, notches are applied. A glass 15 is made on the other side of the L-shaped swivel 14, the rod 17 is located in the hollow surface 16 of it. The rod 17 is made with it in one piece shoulder “dovetail” with grooves 19 and 20 made on both sides thereof with an inner cone. On one side of the stem 17 there is a threaded part 21 and a non-threaded part 22 extending to the collar 18. On the other side of the collar 18 there is a non-threaded part 23 and a threaded part 24, see FIG. 1 and 2.

On the threaded part 21 of the rod 17 are a nut 25 connected by a thread, made on the protrusion 27 of the conical sleeve 26, with the possibility of their rotation by the nut 25 together with the sleeve 26 and the annular groove 28 with the inner cone 29. On the non-threaded part 22 is a polyurethane sleeve 30 with hardness exceeding the hardness of high-strength rubber, the groove 31 of which is inserted into the groove 28 with the inner cone 29 of the conical sleeve 26, and the groove 32 with the external cones 33 is brought into the groove 19 of the collar 18. All the above-mentioned metal parts wound on p the threaded part 21 and the non-threaded part 22 to the collar 18, due to the rotation of the protrusion 27 and the rotation of the conical sleeve 26 along the threaded part 21 are pressed to the elastic state in the axial direction, and the polyurethane sleeve 30 is additionally pressed in the radial direction and tightly pressed against the inner surface 16 of the hollow parts of the cup 15 and to the surface of the rod 17. Between the nut 25 and the plane of the stationary cage, a previously calculated and experimentally established gap is set, which is fixed by pressing the lock nut 34 against the nut 25, with the sleeve 26 and no We eat them turning on the thread. On the other hand, a collar 18 on the non-threaded part 23 of the rod 17 into the groove 20 of the collar 18 has a groove 35 with an external cone of a stepped polyurethane sleeve 36 of increased hardness, the other groove 37 with an external cone is inserted into a groove 38 of an annular protrusion 39 made on the inner hollow part 16 of the glass 15. Part of the stepped polyurethane sleeve 36 is pressed through with axial and radial forces due to pulling and moving a relatively short distance of the entire previously fixed kinematic connection, consisting of a detail to it, previously fixed with a polyurethane sleeve 30. The previously fixed above parts were pulled by moving relative to the inner hollow surface 16 of the glass 15 towards the stationary groove 38 of the annular protrusion 39 by turning the nut 40 along the threaded part 24 of the shock 17 and the plane 41 of the movable holder 13. When this all metal parts covering fixed to the rod 17 and the hollow surface 16 of the glass 15 part of the stepped polyurethane sleeve 36, pushed with a force not exceeding their yield strength. This position is fixed by lock nut 42. On the part of the stepped polyurethane sleeve 36 protruding through the hole 43 of the annular projection 39 in the form of a shaft 44, a first sliding bearing 45 is formed, formed by the body of the movable cage 13. On the movable cage 13 and the stationary cage 46 relative to the longitudinal axis, overlapping each other , made two annular protrusions 47 and 48, each having its own bottom, forming a connection type "spike - groove". The protrusion 47 forms a spike, the protrusion 48 forms a groove. They are separated by a damper 49 placed between them from a polyurethane sleeve 50 of increased hardness, which together form a second plain bearing. The length dimension of the polyurethane sleeve 50 of the damper 49 is greater than the length of each of the two protrusions 47 and 48. The movable ferrule 13 and the stationary ferrule 46 when pressed against each other and moved relative to the shaft 44, the damper 49 until they stop in the bottoms of the annular protrusions 47 and 48, form previously calculated and experimentally established clearance 51 for damping vibrations and mitigating impacts at maximum suspension travel. This position is fixed by two nuts 25 and 40 and two locknuts 34 and 42 on the stem 17. Assembling into another node of the 52 L-shaped swivel is carried out in the sequence similar to the assembly of the 14-G-shaped swivel. In this case, the polyurethane sleeve 30 first pre-fix the parts located on the rod 17 on one side of the shoulder 18, and then by drawing along the longitudinal axis relative to the stationary hollow surface 16 of the glass 15 in the direction of the groove 38 of the annular protrusion 39 of the entire kinematic connection, together with the rod 17, distribute part of another, stepped polyurethane sleeve 36 of increased hardness, and fix another part located from the shoulder 18. In this case, due to the axial movement of the rod 17 with the parts fixed on it, reciprocal compensating forces are caused due to internal elastic and friction forces when drawing for a relatively short distance and the previously previously fixed part is finally fixed. The threaded part 53 of the rod 1 is inserted into the threaded hole 54 made on the movable sleeve 13, and after setting the corresponding angles from 0 to 360 degrees between the axes of the threaded tips formed by the threaded parts 21, the position of the rod 1 is fixed with a lock nut 55. The assembled unit is ready to be mounted on front suspension. At the same time, it is fixed in the intended holes only by rotating the nuts along the fixed threaded tips made on each rod of two hinged parts, see FIG. 1 and 2.

In the particular case of the method, the device for its implementation is as follows, see Fig 3 and 4. If the mounting conditions are tight, in the nodes of medium-duty vehicles and the need to rotate the rod with the nut at the same time fixing the threaded rod onto the rod 56 without a collar, different in size diameter from the rod 17, set the movable sleeve 57. On the protrusion 27 of the conical sleeve 26 perform a circular cavity 58 with the possibility of its establishment on the movable sleeve 57. The cavity 58 is used as a guide 59 p When moving the cone sleeve 26 over the surface of the movable sleeve 57 and as a travel stopper 60 of the cone sleeve 26 when it is pushed, radially distributed and secured to a polyurethane sleeve 30 with a hardness exceeding the strength of high-strength rubber, to the hollow surface 16 of the cup 15. On the movable sleeve 57 is made for one whole collar 61 with grooves 62 and 63 in the shape of a dovetail, and on the side of the movable holder 13 on the movable sleeve 57, thread 64 is made with nut 65 screwed onto the thread. To unify the manufactured polyurethane bushings, etc. replaceable when implementing the inventive device, the total size of the diameter of the stem 56 and the size of the movable sleeve 57 along the thickness dimension equal diameter stem 17. In the method a polyurethane bushing 30 having a hardness greater than the hardness of high-strength rubber, and is pressed radially distribute, and fixed. At the same time, it is fixed by rotating the protrusion 27 and the annular groove 28 of the conical sleeve 57 to the shoulder 61 with the groove 62, the movable sleeve 57 and the hollow surface 16 of the glass 15. Then, by turning the threads 64 of the nut 65, made on the movable sleeve 57 and the plane 41 of the movable holder 13 the above

the kinematic connection previously fixed by the polyurethane sleeve 30 is extended. The broach is carried out together with the movable sleeve 57 with respect to the stationary hollow surface 16, towards the groove 38 of the annular protrusion 39 and a part of the stepped polyurethane sleeve 36 is fixed to the movable sleeve 57 of the hollow surface 16 of the glass 15.

Similarly to the sequence described above, another hinged portion of the L-shape is assembled. The method in the General case of its use, the assembly of the rod 1 with parts in the glass 12 of one of the sides 14 of the L-shaped hinged part. Set the previously calculated and experimentally established gap 78 between the conical sleeve 26 and the plane of the stationary casing 46 is fixed with a lock nut, and also set the gap 51 between the fixed cage 46 and the movable cage 13, which is fixed with a lock nut 42. As a result, the rod 56 with the formed threaded tip can be rotated around its axis and simplify the fastening of the anti-roll bar in regular openings on the suspension.

Using the method and device in the second given particular case allows to obtain polyurethane metal bushings of increased strength, durability and use them in the process of repairing the front suspension, see Fig. 3 and 4. Using the inventive method in a particular case using the device in the third embodiment, it can be used to fasten parts of the upper support of the front suspension rail of the front suspension of the car. In this case, a shank 66 of the shock absorber rod 67 with a threaded part 68 on one side thereof with a smooth smooth surface 69 in the middle part and a threaded part 70 on the other side is used as a rod 56. On a stationary clip 46, brackets 71 are additionally made with holes 72 for fasteners 73 for fastening the assembled unit to the car body, see FIG. 5 and 6. The implementation of the method in this case is carried out in the sequence described for implementation in the second particular case of using the method, using a movable sleeve 57 with a collar 61 mounted on the shank 66. When rigidly fixed on a smooth surface of the shank of the collar, it is possible to fix parts according to the method in the general case of its use (not shown in the drawing).

The claimed method and device for its implementation allows you to use it in the fourth particular case. In cases where there is the possibility of using metal, thick-walled fixed and movable clips and when there is no threat of their re-distribution and inflation by bushings made of polyurethane of increased hardness. For example, when applying the method and device for fastening parts in the rocket rod of the balancing suspension of heavy vehicles, as well as in the hinged parts of nodes of earthquake-resistant building structures and the production of pumping equipment. At the same time, a groove 74 is made on the surface of the inner hollow part 86 of the glass, a shoulder 75 is formed in cross section in a shape resembling a “dovetail”. Burt 75 protrudes toward the central axis of the cup in the form of a trapezoid 76, the base of which contacts the clearance along the sliding fit with the surface of the movable sleeve 80 without collar. In another case, the shoulder 75 is in contact with the surface of the rod 79 without a shoulder and the method with the device is used without a movable sleeve 80 without a shoulder. In this case, the polyurethane sleeve 30 is pushed and radially distributed on one side to the shoulder 75 and part of the stepped polyurethane sleeve 36 mounted on the other side of the shoulder 75 without a “pull” operation. Fix both of the above bushings independently, simultaneously or in turn. In this case, the conical sleeve 81, which is moved along the stem 79 with the nut 85 on the protrusion, secures the polyurethane sleeve 30 to the size of the previously calculated and experimentally established gap 78 between the protrusion 84 of the conical sleeve 81 and the plane of the stationary holder 87, and part of another stepped polyurethane sleeve 36 of increased hardness squeeze, radially distribute and fix to the surface of the hollow part 86 of the Cup due to the axial movement of the annular protrusion 77, made from the side of the sliding bearing 45 on a movable cage 89. In this case compress, push, distribute part of the stepped polyurethane sleeve 36 with an annular protrusion 77, see FIG. 7. Pressing is carried out by turning the nut 65 along the threaded part 90 of the rod 79 while simultaneously moving the sliding bearing 45 along the shaft 44 and moving the movable sleeve 89 along the damper 49 from the polyurethane sleeve 50 of increased hardness until the bottoms of the protrusions 47 and 48 stop in the damper 49. Moving the annular protrusion 77 at this moment stop.

As a result, when implementing the method, between the stationary holder 87 and the movable holder 89, the distance will correspond to the previously calculated and experimentally established gap 51, and the step ledge 77 will have a stepped polyurethane sleeve 36 securely fixed. As a result of the implementation of the method in this particular case, the operation "pulling" is eliminated. There is the possibility, provided that the thickness of the fixed 87 and the movable holder 89 is increased, use polyurethane bushings of increased hardness on both sides of the shoulder 75 without fear of inflating the hollow part 86 of the glass of the stationary holder 87. The process of fixing the above-mentioned two bushings of increased hardness can be carried out simultaneously with the simultaneous application of forces on them with nuts 65 and 85. In addition, the implementation of the method in the given particular case is carried out using a movable sleeve 80 without collar according to the above sequence and. In this case, metal-polyurethane bushings are obtained, which do not coincide in terms of the properties shown, but in size can be closest to the original rubber and polyurethane parts mastered by the industry and used in car assemblies, which can expand their use and increase the durability of their operation.

In the General case, the use of the claimed method it is used in the following order.

Of the parts received from certified factories or manufactured independently from materials with a certificate, a repair kit is selected that is intended to implement the method in the general case and it proceeds to the enlarged assembly of the anti-roll bar in the unit. On one side of one hinged part 14 of the L-shaped form in one of the two glasses 15, a polyurethane sleeve 30 is pre-fixed with a hardness exceeding the hardness of high-strength rubber. The sleeve 30 is pressed through, radially distributed and pre-fixed with an annular groove 28 with an inner cone 29 of the conical sleeve 26 towards the groove 19 of the inner cone of the collar 18 in a shape resembling a dovetail, with a load below the yield strength of metal parts covering a 30 cm polyurethane sleeve. FIG. 1 and 2. In this case, the insertion during punching is carried out with a minimum idle speed of the conical sleeve 26. Finally, the sleeve 30 is fixed while simultaneously securing a part of the stepped polyurethane sleeve 36 of increased hardness by pulling the rod 17 and all parts previously previously fixed on the rod 17. The rod 17 is pulled by turning the nut 40 along the threaded part 24 and the flat surface 41 of the movable holder 13. The rod 17 and the collar 18 are moved relative to the hollow surface 16 of the glass 15 towards the annular protrusion 39 motionlessly made on the glass 15 and its groove 38. A groove is introduced into the groove 38 37 of the aforementioned sleeve 36, which is pressed in the axial and radial direction, fix it to the shoulder 18 and the hollow surface 16 of the glass 15, without subjecting to deformation of its other part. The non-deformable part of the stepped polyurethane sleeve 36 is brought out through the hole 43 forming onto the outer side by forming an annular protrusion 39 and is used as a shaft 44 on which the sliding bearing 45 is mounted. One sliding bearing 45 is formed by the body of the movable cage 13. Another bearing is formed by a round protrusion 46 with the bottom in the form of a spike wound with overlapping in the groove, with a bottom made on a protrusion 48 on a movable holder 13, and separated by a damper 49 from a polyurethane sleeve 50 of increased hardness. The difference in size of the length of the damper 49, which individually exceeds the length of both the spike and the groove, ensures the fulfillment of the previously calculated and experimentally established gap 51 between the stationary holder 46 and the movable holder 13. By performing the aforementioned gap 51, damping and damping of vibrations, shocks and noise loads at maximum strokes pendants in all spatial positions.

Rod 1 with the end of ball form 2 is fixed between two cavities 3 and 4 in the form of truncated cones of two polyurethane bushings 5 and 6 of increased hardness without play and with an interference fit, which allows rod 1 to rotate around its axis by an angle from 0 to 360 degrees. The thrust is supported by a polyurethane sleeve 7 of increased hardness, the tension is adjusted by turning the threaded part 10 of the plug 8 along the threaded part 11 of the cup 12, by which notches are removed, except for unscrewing the plug 8. The threaded part 53 of the rod 1, made at the other end, is fixed in the threaded hole 54 of the movable the clips 13 of the other hinged portion 52 of the L-shaped, equipped with one glass 15. The details of the other hinged portion 52 are assembled in accordance with the above sequence.

In the second particular case, the method is used as follows. On the threaded part 21 of the rod 56 without shoulder 18, a movable sleeve 57 is inserted with a shoulder 61 made on it in one piece with grooves 62 and 63 with an internal cone in the shape of a dovetail. The size of the diameter of the rod 56 used in the implementation of this method in a particular case, together with the thickness of the movable sleeve 57 is equal to the size of the diameter of the rod 17 used in the general case of using the method.

On the protrusion 27 of the conical sleeve 26, a stroke limiter 60 of the conical sleeve 26 is made with the possibility of its guide 59 moving along the movable sleeve 57, on the opposite side of which there is a thread 64 with a screw nut 65.

On the non-threaded part of the movable sleeve 57, on one side, a polyurethane sleeve 30 with a hardness exceeding the hardness of high-strength rubber is pressed, which is pressed, distributed and pre-fixed to the movable sleeve 57, shoulder 61, conical sleeve 26, the surface of the hollow part 16 of the glass 15. In this case, the movement the conical sleeve 26 with the guide 59 are guided until the stroke stop 60 abuts against the end of the movable sleeve 57 and the hollow surface 16 of the bead 15 with shoulder 61 and the movable sleeve 57 are forced through with a force below their yield strength. Bearing 45, the groove of the movable sleeve 13 lead to the spike of the protrusion 47 and the damper 49 in the form of a polyurethane sleeve 50 of increased hardness until the bottom of the groove of the protrusion 48 abuts against the stud surface of the stationary holder 46 until a gap 51 is formed between the two clips 46 and 13. By turning the nut 65 to the thread 64 of the movable sleeve 57 relative to the plane 41 of the movable sleeve 13, the entire previously pre-fixed kinematic connection on the movable sleeve 57 is pulled by moving it toward the annular protrusion 39 and its groove 38. The nut 65 is rotated until the size o razovannogo gap 51 will not match the size previously calculated and experimentally established gap, whereupon rotation of the nut 65 threadably 64 is stopped and the gap is fixed locknut 51, see. FIG. 3 and 4. Similarly to the sequence described above, the other hinged part of the L-shaped form 52 is assembled with one glass 15, which is connected by a rod 1 to the previously assembled hinged part 14 of the L-shaped shape equipped with two glasses 12 and 15.

In the third particular case of using the claimed method, when it is necessary to fix the upper support of the guide of the front strut as a rod 17 or rod 56, the shank 66 of the shock absorber 67 is used. In the shank 66, the middle part is pierced to a smooth surface 69, leaving the threaded part 68 and the threaded part 70 at the ends . On a stationary clip 46, brackets 71 are made with holes 72 for fixing bolts 73 and a place for installing the spring.

When implementing the method with a movable sleeve 57 with a shoulder 61, a threaded portion 64 and a nut 65, a conical sleeve 26 with a travel stop 60 and a protrusion equipped with a nut 27 of the guide 59 is used. In this case, the shank 66 of the shock absorber 67 is fixed in the sequence described above in the second embodiment use of the method. The movable sleeve 13 in this case has the ability to rotate relative to the stationary sleeve 46 and the movable sleeve 57 fixed therein on two sliding bearings, and the shank 66 can additionally independently rotate inside the movable sleeve 57. When implementing the method using the shank 66 with a collar 18 fixed to it , the threaded part 21, the non-threaded part 22, the threaded part 24, made on the shank (not shown in the drawing), use the conical sleeve 26 and the shank 66 of the shock absorber 67, fix the parts in sequence and the above method, necessary in the General case of its use. The movable cage 13 in this case has the ability to rotate relative to the stationary casing 46 and the rod 17 fixed in its glass 15 on only two sliding bearings.

When implementing the method in another particular case, when it is possible to constructively make stationary and movable clips with increased wall thickness and there is a need to use polyurethane bushings with different hardness or only with increased hardness, the method is used in the following order. A groove 74 is made on the surface of the hollow part 86 of the glass; a shoulder 75 is formed in cross section in a shape reminiscent of a “dovetail”. Burt 75 protrudes toward the central axis of the cup in the form of a trapezoid 76, the base of which is associated with a clearance along a sliding fit with the surface of the movable sleeve 80 without a shoulder. In this case, the polyurethane sleeve 30 is pushed and radially distributed on one side of the shoulder 75 and part of the other stepped polyurethane sleeve 36 mounted on the other side of the shoulder 75 without a pull operation, without fear of re-distribution of the glass of the stationary clip 87.

In time, both of the aforementioned bushings are fixed independently from each other simultaneously or in turn with the application of forces from one or the other side or with the simultaneous application of forces from two sides along the longitudinal axis of the hinge part.

When implementing this method using a rod 79 without a shoulder, the cone sleeve 81 is moved along the threaded part 90 of the rod 79 with a nut 85 on the protrusion 84. In this case, the polyurethane sleeve 30 is pressed, radially distributed and solidly fixed with a hardness exceeding the hardness of the high-strength rubber until the clearance gap is calculated the size of the gap 78 between the protrusion 84 of the conical sleeve 81 and the plane of the stationary cage 87.

Part of another stepped polyurethane sleeve 36 of increased hardness is pressed through, radially distributed and secured to the hollow surface 86 of the cup due to the axial movement of the annular protrusion 77 made from the side of the sliding bearing 45 on the movable sleeve 89. In this case, part of the stepped polyurethane sleeve is compressed, pressed and radially distributed 36 with an annular protrusion 77, see FIG. 7. Pressing is carried out by turning the nut 65 along the threaded portion 90 of the rod 79 while simultaneously moving the sliding bearing 45 along the shaft 44 and moving the movable cage along the damper 49 from the polyurethane sleeve 50 of increased hardness until the bottoms of the protrusions 47 and 48 stop in the damper 49. Moving the annular protrusion 77 at this moment stop. As a result, between the stationary holder 87 and the movable holder 89, the size of the gap will maximally coincide with the size of the previously calculated and experimentally established gap 51, and the end protrusion 77 of the part of the stepped polyurethane sleeve 36 will be securely fixed. The implementation of the method allows the use of polyurethane bushings with high hardness on both sides of the shoulder 75, without fear of excessive distribution of metal parts. It should be noted that when operating vehicles, the rotation of the movable cage around its axis in the radial direction is minimal. The arising acting forces during damping and damping of the oscillations when turning the movable cage 89 around its axis by an elastically conjugated annular protrusion 77 with a pushed step polyurethane sleeve 36 will exceed the friction forces that prevent rotation. However, the high resistance properties of the polyurethane resistance to abrasion and tearing, exceeding those of rubber by 20-25 times, allow the use of the articulated hinge part in the front suspension, see Fig. 7. If necessary, a rolling bearing 88 is installed in the movable sleeve 89, the inner sleeve mounted on an annular protrusion 77, which rotate the movable sleeve 89, see Fig. 8.

Similarly to the above sequence, two polyurethane bushings with increased hardness 36 and 36 are fixed simultaneously or in turn, for example, in earthquake-resistant building structures installed before and after shoulder 75. To do this, a movable sleeve 80 without shoulder and a conical sleeve 81 s a guide 82 made therein, a travel stop 83, a protrusion 84 with a nut 85. Then, simultaneously rotate the nut 65 along the threaded part 70 of the movable sleeve 80 and rotate the nut 85 along the threaded part 90 of the rod 79 without collar. By moving the annular protrusion 77 together with the fitted sliding bearing 88 and the conical sleeve 81 towards each other, two polyurethane bushings 36 and 36 of increased hardness are pushed into the shoulder 75, and securely fasten them in the hollow part 86 of the glass of the stationary cage 87, and move the movable cage 89, see FIG. 8.

Using the method ensures the achievement of the following technical results, achieving the maximum possible use of the advantages and advantages of polyurethane.

The claimed method eliminates the use of the operation of vulcanization, bonding, temperature effects on the parts during repair, for example, the front suspension of a vehicle, and simplifies the replacement of worn parts at service stations, up to repair, for example, the front suspension in garage and road conditions. Polyurethane is machined in various ways. This expands its technological capabilities for use by both independently manufacturing certified polyurethane parts and by placing orders for its manufacture at specialized factories. In addition, the use of the method for fastening a set of polyurethane bushings with different hardness in the hinge bodies provides high strength and elasticity, resistance to aggressive substances, including gasoline and oil. The application of the method provides heat resistance to high and low temperatures, allowing their use in the range from -50 to +120 degrees. Performing on the conical sleeve of the protrusion with the nut ensures its rotation and taking measurements with the probe when installing a pre-calculated and experimentally established gap between the nut and the plane of the glass of the rotary holder.

The implementation of an annular groove with an inner cone on a conical sleeve and annular grooves with an external cone on a polyurethane sleeve with a hardness slightly, but still higher than the hardness of high-strength rubber, reduces idle speed when moving the conical sleeve for its distribution and reduces the overall dimensions of the swivel assembly.

The execution on the stem of the shoulder, in a shape resembling a "dovetail", in one piece on the non-threaded part of the stem with annular grooves with an inner cone on both sides provides input and fixation of annular grooves in them with the outer cone of one polyurethane sleeve with a hardness higher than the high-strength hardness rubber, and another stepped polyurethane sleeve of increased hardness, and also reduces the total idle speed for cutting when moving the cone sleeve, reducing the overall dimensions of the device.

The execution on the surface of the hollow glass of a stationary clip, entering and protruding inward to the center of the longitudinal axis of the annular protrusion with an external cone, into which a groove with an external cone of a stepped polyurethane sleeve is introduced, reduces the idle stroke of the collar during its movement and distribution of the sleeve. In addition, through the hole formed by the annular protrusion, it becomes possible to withdraw part of the polyurethane sleeve of increased hardness to the outside of the hole and use it as a polyurethane shaft. The aforementioned fixed annular protrusion provides a restriction of the plane of the fixed part of the stepped polyurethane sleeve when pulling and moving relative to the hollow part of the glass in the axial direction and its radial distribution with fixing to the surface of the hollow part of the glass.

The use of a polyurethane sleeve with a hardness exceeding the hardness of high-strength rubber allows it to be pre-pressed and fixed to the surface of the hollow part of the glass with minimal force and form a “soft zone of elasticity” of fastening of the sleeve, at the same time it can be finally fixed by pulling it together with previously fixed parts on the rod and at the same time, by pulling, fasten the part of the stepped polyurethane sleeve of increased strength by distribution and. At the same time, high strength, resistance to tearing and repeated deformations exceed those properties of rubber, allow the aforementioned broach to be carried out without destroying the previously fixed sleeve despite its slight movement relative to the surface of the glass towards its annular protrusion made in one piece. The use, for example, when implementing the method of the two aforementioned polyurethane bushings with increased hardness when they are drawn, will require a large application of forces to distribute them and increase the rod cross section, shoulder section, and cup sizes, which will lead to an increase in the overall dimensions of the hinges, which is not always possible. In this case, it will not be possible to perform the “pulling” operation.

The implementation of the node swivel according to the claimed method ensures its installation in all spatial positions. By executing a damper with a size exceeding individually the length of the stud and groove of the fixed and movable cage, a previously calculated and experimentally established gap is formed, which provides effective damping of vibrations, shock and sound loads and the occurrence of creaks at the maximum suspension travel.

The execution of a polyurethane shaft fixed in a stationary holder protruding beyond its limits, makes it possible to use the inner surface of the movable holder itself as a sliding bearing, and it is also possible to install an additional rolling bearing inside the movable support if necessary and fix it to the polyurethane shaft.

At the same time, the high wear resistance of the shaft from the selected brand of polyurethane allows you to freely scroll relative to the sliding bearing shaft, without any noticeable harm from friction with the metal of the movable cage. A common advantage of using the method is to increase several times the wear resistance and durability, for example, traction stabilizer bar front suspension.

Using the method allows to create stationary clips and adjacent movable clips of articulated joints from the above-mentioned parts, which can be used in other industries. for example, use the method in the manufacture of pumping equipment and earthquake-resistant assemblies of articulated bearings in the construction industry. The fastening of the rolling bearing in the movable cage and its movement together with the annular protrusion overcomes the arising high friction forces when fastening the bushings with high hardness and creates the possibility of rotation of the movable cage.

Despite the similarities with the prototype and other known nodes: a stem with a shoulder, a tapered sleeve, a movable sleeve with a shoulder, a shaft with a shoulder, glasses with a shoulder, telescopically wound with overlapping clips separated by a damper, structures of polyurethane bushings and formed plain bearings of the claimed method and device for its implementation, the properties shown by them during their implementation are different and do not coincide with the properties of known signs.

A device for the upper support of the guide of the front suspension strut of a car is known, see Patent No. 2331526, B60G 15/06 of 08/20/2008, in which the outer casing is fixed to the inner casing by vulcanization through an elastic insert in which the shock absorber rod is fixed. The bearing is formed by two bearing surfaces. As a damper, an elastic insert, metal fluoroplastic and fluoroplastic gaskets are used. However, the presence of a vulcanization operation precludes its repair directly in garage conditions and in small workshops.

A device is known, the reaction rod of the balancing suspension of trucks and the tip of the reaction rod, see Utility Model Patent No. 146166, B60G 5/02 10/10/2014. The known device uses an elastic element in the form of a spherical polyurethane sleeve installed between the ball tip and metal wall of the sleeve. However, the spherical shape of the elastic element requires special equipment for its installation in the sleeve in the cold state. The fastening of the elastic element in the sleeve according to the description of the invention requires the use of special glue or exposure using elevated temperature. In addition, it is not possible to reliably install a ball-shaped elastic liner made of polyurethane into the sleeve in the cold state due to the pressure of its protruding cover and unlimited in circumference of the protruding part on one side. The protruding part can be deformed in the process of its establishment, therefore, cannot fully enter the intended place in the sleeve. The above disadvantages are eliminated by the claimed device, which extends the use of polyurethanes of various hardness, provides repair of articulated joints without the use of special equipment and vulcanization.

The device contains two swivel joints of the L-shaped form. Moreover, in one swivel of the L-shaped form, two glasses with a hollow surface are made. A thrust is introduced into one of the glasses, the end of which is spherical in shape fixed between two depressions in the form of truncated cones of two polyurethane bushings of increased hardness.

To adjust the fixed end of the ball-shaped thrust with the possibility of its independent movement without play around its axis by an angle from 0 to 360 degrees, the two aforementioned bushings, together with the end of the ball-shaped thrust, are supported by another polyurethane sleeve of increased hardness. The sleeve is fixed on the bottom of a metal plug with an internal thread that is screwed onto the external thread of the glass with a lock against unscrewing. Inside each of the two fixed cages of the two articulated joints is a rod with a collar made with it. To reduce idle during insertion with the purpose of axial punching of polyurethane bushings, the shoulder is made in the form of a "dovetail", with grooves to accommodate the ends of the polyurethane bushings. On the threaded part after the tip on the stem are a nut, a conical sleeve with a protrusion and its nut and an annular groove with an inner cone, in which a groove of a polyurethane sleeve with a hardness exceeding the hardness of high-strength rubber is placed on the threaded part of the stem, and its other groove with an external cone is wound in the groove of the shoulder. All the aforementioned kinematic coupling is pressed axially and radially due to the movement of the conical sleeve by rotating the nut on the protrusion along the threaded part of the rod until it stops against the non-threaded part of the rod. At this point, the pressure on the aforementioned polyurethane sleeve will stop and it will be pre-fixed to the hollow surface of the glass, collar, stem, and conical sleeve, this position is fixed with a nut on the protrusion. On the other hand, a shoulder in its groove is a groove with an external cone of another part of a stepped polyurethane sleeve of increased hardness, a groove of which with an external cone is brought into a groove of an annular protrusion made on a glass. Another part of the aforementioned polyurethane sleeve intended for use as a shaft with a grooved bearing seat through a hole formed by an annular protrusion, is displayed on the outside of the stationary cage. A movable cage with a sliding bearing formed by its body is wound on the shaft of the protruding part of the stepped polyurethane sleeve, and a groove formed by an annular protrusion with a bottom, the movable cage is brought into the damper from a polyurethane sleeve of increased hardness, previously connected to the spike of the stationary cage. The length of the damper from the polyurethane sleeve of increased hardness exceeds the size of the length of the spike and groove separately. The given difference in length sizes during compression of the stationary and movable cages to the stop of the spike bottom and the bottom of the groove forms a previously calculated and experimentally established gap, which provides reliable damping and damping of vibrations at maximum travels of the suspension. In addition, the above-mentioned parts wound up with metal and separated by polyurethane parts form an additional sliding bearing, which is reliably protected from displacement when forces are applied in the transverse direction. By turning the nut from the side of the movable cage along the threaded part of the rod, the previously pre-fixed kinematic connection is pulled together with the rod and shoulder towards the annular protrusion and finally fixed. Fix due to reciprocal elastic forces and friction forces on the walls of the hollow surface of the glass. At the same time, through the broaching, the part of the stepped polyurethane sleeve of increased hardness is pressed in the axial and radial direction, which is fixed to the surface of the hollow part of the glass, the shoulder and the annular protrusion. After setting the gaps between the fixed and movable clips and the gap between the nut and the plane of the fixed clip, they are fixed on the threaded parts of the stem with lock nuts.

In a similar sequence, another hinged part of the L-shape is assembled with one glass of anti-roll bar. The threaded part is fixed in the threaded part of the movable holder of the L-shaped swivel with one glass and the exposed tips are fixed at a given angle.

In the particular case of using the device for fastening parts of medium-duty vehicles, as well as the presence of cramped conditions, in which it is necessary to rotate the threaded tip when fastening it with nuts with two keys, it is used in the following order. On the movable sleeve on one side of its collar in the form of a "dovetail" start step polyurethane sleeve increased hardness. On the other hand, a polyurethane sleeve with a hardness exceeding the hardness of high-strength rubber, a conical sleeve with a groove, and a travel stop with a nut protrusion and a lock nut for locking the gap are inserted into the shoulder. The above kinematic connection from the parts on the movable sleeve is wound onto a rod that does not have a shoulder, and then its hollow part of the glass is wound. At the same time, through the hole formed by the annular protrusion on the cup, part of the stepped polyurethane sleeve of increased hardness, intended for use as a shaft for the bearing, is brought to the outside of the cup of a stationary cage, and the conical groove of the part of the polyurethane sleeve of increased hardness is brought into the groove of the ring protrusion .

A screw and a lock nut are screwed onto the threaded part of the movable sleeve introduced beyond the plane of the movable holder. The movable cage with a sliding bearing is brought onto the polyurethane shaft, and the groove of the movable cage is brought into the damper from the polyurethane sleeve of increased hardness previously brought into the spike of the protrusion of the stationary cage. By turning the nut on the protrusion of the conical sleeve along the stem thread, the conical sleeve is moved towards the shoulder made on the movable sleeve. At the same time, the guide of the limiter is moved together with the conical sleeve along the surface of the movable sleeve. A polyurethane sleeve with a hardness exceeding the hardness of high-strength rubber is pressed, radially extended and fixed to the surface of the hollow part of the glass, the shoulder, the movable sleeve and the conical sleeve, until the stopper abuts against the end of the movable sleeve, see Fig. 3 and 4.

At this point, the distribution of the aforementioned sleeve is stopped and it will be pre-fixed, and the metal parts covering it will be forced through with a force not exceeding their yield strength. By turning the nut along the threaded part of the movable sleeve and the plane of the movable holder, the previously fixed kinematic connection with the rod and the movable sleeve and the parts fixed on them is pulled relative to the surface of the hollow part of the glass towards the annular ledge. Part of the polyurethane sleeve of increased hardness is pressed through, radially distributed and fixed to the movable sleeve, collar, cup surface, annular protrusion and finally fix the polyurethane sleeve with a hardness exceeding the hardness of high-strength rubber. Upon reaching the size of the gap, previously calculated and experimentally established, the pressure by turning the nut is stopped and the gap is fixed. In a similar order, the parts are fixed in another hinged part of the L-shaped with one hollow glass. The above method in the General case of its use produce fastening rods with two hinged parts. The result is high-strength, durable, polyurethane compounds using polyurethane with varying hardness. There is the possibility of independent movement of the rod inside the movable sleeve when attaching its tip with the rotation of either the nut or the rod, see Fig. 3 and 4.

In another particular case, when using a device for mounting parts of the upper support of the guide of the front suspension strut of a vehicle, a shock absorber shank is used as a rod for axial and radial distribution of polyurethane bushings of different hardness. On the shank, the thread is machined in its middle part to a smooth surface, leaving the thread at the ends of the shank. On a stationary clip, brackets are made with holes for fasteners to be able to be fixed on the car body, and also places are made for fixing the spring. Then, in the second particular case described above, the parts of the upper support of the front pillar guide are fastened, see FIG. 5 and 6. In this case, when fixing the shoulder on a smooth surface of the shank, the device can be used to fasten parts without a movable sleeve, but only using a shank (not shown in the drawing).

In the particular case of using the method, when it is possible to constructively move the movable and stationary clips with a thickened metal wall of the hinged parts, for example, heavy vehicles, earthquake-resistant units of building structures, the device operates as follows.

The dovetail-shaped burt is made integrally with the outer surface of the glass in the form of an annular groove in cross section in the form of a trapezoid, the base of which contacts the gap with the surface of the movable sleeve without a collar brought into the rod without a collar, see Fig. 7 and 8. At the end of the sliding bearing formed by the body of the movable cage, a protrusion is made in the form of an annular groove with an inner diameter of at least the diameter of the sliding bearing. Without a “pulling” operation, an annular protrusion pushes, distributes and fixes part of the polyurethane sleeve of increased hardness to the shoulder of the movable sleeve of the surface of the hollow part of the glass by turning the nut along the threaded part of the movable sleeve and the plane of the movable holder. On the other side of the stationary cage, by turning the nut on the protrusion of the conical sleeve, which is moved along the guide of the limiter by the conical sleeve, a polyurethane sleeve is fixed that exceeds the hardness of high-strength rubber, which is pressed, distributed and fixed finally without preliminary fixing and the operation of “pulling”. In another case, two of the aforementioned polyurethane bushings or two bushings of increased hardness are fastened in a similar way without using the “pull” operation directly to the rod without shoulder and without using a movable sleeve, see FIG. 7 and 8. To overcome the frictional forces in the movable cage, if necessary, a rolling bearing is fixed, the inner cage of the bearing is mounted on an annular protrusion, facilitating the rotation of the movable cage.

The technical result of the device is the simplicity and accessibility of its assembly in the unit and subsequent installation on the car directly in the garage and road conditions.

The design of the movable cage allows you to use its body as a sliding bearing, and if necessary, fix the rolling bearing in it, while the bearings will be reliably protected from dust and dirt. The implementation of the damper in the form of a stepped polyurethane sleeve allows one part to be securely fixed in a stationary cage, and the other part to bring to the outside and use it as a shaft for bearings.

The implementation of the collar in the form of a "dovetail" allows you to reduce idle during axial movement of the two above-mentioned bushings with different hardness, as well as to draw along with pre-fixed parts in the axial direction. The shape of the dovetail collar on the rod, on the movable sleeve, on the shank and on the hollow part of the glass, like an anchor, reliably captures the end part of the stepped polyurethane sleeve of increased strength and reduces the idle stroke for cutting and distribution of the above-mentioned two bushings, and upon receipt of metal-polyurethane joints collapsed bushings are divided by hard pressed pressed polyurethanes with different application of forces.

The implementation of the damper in the form of a polyurethane sleeve of increased strength, placed all the way to the bottoms of blind ring holes, connecting the fixed and movable clips to each other, forming a thorn-groove connection, simplifies assembly, alignment of parts when mounting hinges, and due to overlapping each other and Separation of each other with a damper from a polyurethane sleeve of increased hardness allows using the assembled joint in all spatial positions and as an additional sliding bearing.

The set, pre-calculated and experimentally established gap between the fixed and movable cage due to the elongated length of the damper placed between the protrusions forming the spike-groove connection allows damping vibration and shock loads by the aforementioned sleeve when using the device at maximum suspension travels. The steel part of the annular protrusion of the stationary cage forming a spike and the annular protrusion on the movable cage, forming a groove separated by a damper, wound with each other overlapping, reliably dampen and additionally protect the swivel from the effects of horizontal loads.

The implementation of grooves with an outer and inner cone on the steel and polyurethane parts of the device allows to reduce idling and time for cutting and distribution of polyurethane bushings with different hardness.

The implementation of a smooth surface in the middle of the threaded portion of the tail of the shock absorber allows it to be used in the claimed device as a rod with the installation of a movable sleeve with a dovetail-shaped collar on it. The device can be used as the upper support for the guide of the front suspension strut of the vehicle.

The implementation of the travel limiter with a guide with the possibility of its abutment against the end of the movable sleeve and the restriction of the travel of the conical sleeve guarantees the fastening of polyurethane bushings without re-distributing them, inflating the stationary and movable holder on the hollow part of the glass.

Performing an annular protrusion on the inner hollow part of the glass of a thickened fixed clip in the form of a "dovetail" allows you to fix parts using polyurethane bushings of increased hardness, located before and after the shoulder.

The implementation of the device with the placement in the hollow part of the glass of a polyurethane sleeve with a hardness exceeding the hardness of high-strength rubber, up to the collar provides the creation of the so-called "zone of softness and elasticity", which allows you to first pre-fix the sleeve, and then perform the operation "pulling" with its movement relative to the surface of the glass to a distance that ensures its final fixing, and placement in the device behind the zone of the so-called "softness and elasticity" after the collar the increased hardness of the lurethane sleeve allows it to be fixed in time simultaneously with the previously pre-fixed sleeve due to the “pulling” operation and at the same time use the protruding non-deformable part outside the stationary cage as a shaft for installing bearings.

Performing an annular protrusion on a plane from the side of the sliding bearing allows pushing, radially distributing and securing part of the stepped polyurethane sleeve of increased hardness without using the “pull” operation of the movable sleeve without a shoulder or rod without a shoulder, expanding the technological possibilities of using the device, for example, in earthquake-resistant units of building structures or in the manufacture of pumping equipment. The device can be made in identical and equivalent versions in general and particular versions of its use. Moreover, in the so-called “zone of softness and elasticity”, a transition is made from rubber to a polyurethane sleeve, for example, SKU-7L, with Shore hardness of 69-70 units on scale A, painted by suppliers as a rule in orange and fixed in the device with a conical sleeve, and used step polyurethane sleeve, part of which is fixedly fixed, and the other part, protruding beyond the frame of a stationary cage, intended for use as a shaft for sliding or rolling bearings, is made, for example, of polyurethane and SIC PU-5 with a shore hardness of 70-95 units on a scale A, usually painted in blue.

A damper placed between the stud and the groove of the fixed and movable cage, both polyurethane bushings with truncated trough hollows for securing with tightness the end of the ball traction and the retaining polyurethane sleeve can be made, for example, of SKU-FE-4 polyurethane with Shore hardness 65-85 units on a scale A, painted, as a rule, in green color. The above polyurethanes are mastered at the factories of the Russian Federation and are industrially quite applicable when using the method and device for fastening parts. Polyurethane products have characteristics 3-5 times higher than that of rubber, in elasticity, 20-25 times in strength and abrasion resistance, are not subject to aging and are frost-resistant from -50 to +120 degrees.

Claims (2)

1. A device for fastening parts of vehicles, mainly a stabilizer bar, containing thrust, the end of which, spherical, is fixed between two cavities in the form of truncated cones of two polyurethane bushings of increased hardness, supported by another polyurethane sleeve of increased hardness, designed to adjust the fixed end ball traction with the possibility of its independent rotation without play around its axis at an angle from 0 to 360 degrees, the sleeve is made on a cork, in the morning thread of which is secured against unscrewing and is connected to an external thread made on a movable holder cup, on one side of an L-shaped swivel having two cups, an external thread threaded on the other side of the end to an internal thread of the movable holder of another hinged joint Г- shaped, equipped with one glass, while in each glass of each fixed holder of two hinged parts there is a rod with a collar made with it in one piece with grooves with an inner cone on each of its sides in the form of a "dovetail", on the threaded part from the side of the tip on the rod there is a conical sleeve with a protrusion on which a nut and an annular groove with an internal cone are made, in which a groove of a polyurethane sleeve with a hardness exceeding the hardness of high-strength rubber is placed connected to the non-threaded part of the rod, its other groove with an external cone is brought into the groove of the shoulder, and all the above kinematic connection is axially pressed, and the sleeve in the radial direction, due to of the nose sleeve by rotating the nut on the protrusion of the threaded part of the rod until it stops in the non-threaded part of the rod, stopping the distribution of the polyurethane sleeve, on the other side of the shoulder in its groove is a groove with the outer cone of the stepped polyurethane sleeve of increased hardness, its other groove with the outer cone is wound into the groove of the annular protrusion made on the glass, and the other part, designed under the shaft, with a grooved bearing seat under the bearing, is brought to the outside of the stationary cage, the protrusion of which in The idea of a ring with a groove-shaped bottom is brought into a protrusion of a stationary cage in the form of a ring with a spike-shaped bottom and brought into each other with overlapping through a damper separating them from a polyurethane sleeve of increased hardness and which together form a sliding bearing, while the length of the damper exceeds the size of the spike length of the fixed cage individually and the size of the length of the groove of the movable cage, and a previously calculated and experimentally established gap is formed between the bottom of the spike of the fixed cage and the end of the groove of the movable cage Ohr, providing together damping forces in the vertical, inclined and horizontal positions of the device at maximum suspension travels, while part of the stepped polyurethane sleeve of increased strength is pressed axially and radially along with the broaching of previously fixed parts on the rod with a polyurethane sleeve with a hardness exceeding the hardness of high-strength rubber moved relative to the hollow surface of the glass towards the annular protrusion, finally fixing the aforementioned sleeve due to axial and radial compensating elastic forces of friction against the walls of the cup due to the termination of the rotation of the nut along the threaded part of the rod and the plane of the movable cage, in which another sliding bearing is formed along the shaft, with the movable cage moving along the damper and the spike of the stationary cage efforts on the stepped polyurethane sleeve with a load not exceeding the yield strength of the metal parts covering it, and the size of the gap between the bottoms is set m stud and the end portion of the groove movable and fixed clamps. 2. The method of connecting vehicle parts, mainly the anti-roll bar using the device according to claim 1, according to which a polyurethane sleeve with a hardness exceeding hardness is pre-fixed on one side of the hinged part of the L-shaped form with two glasses high-strength rubber, which is pressed through with a minimum idle for insertion by an annular groove of the conical sleeve into the groove of the inner cone of the collar in the form of a "dovetail" with the creation of the above pulled out polyurethane sleeve of the zone of softness and elasticity, which allows it to be drawn, and then finally fix it simultaneously with part of the stepped polyurethane sleeve of increased hardness by pulling the rod and all parts previously fixed on the rod together with the shoulder relative to the surface of the glass towards the ring annularly fixed on the glass the protrusion and its groove, into which a part of the aforementioned sleeve is brought in, and pressed in the axial and radial direction, is fixed, not suspended deformation, its other part, which is brought out through the hole of the annular protrusion to the outside and used as a shaft, onto which a sliding bearing is mounted, which is formed by the body of the movable cage, then it is moved along the aforementioned shaft and a damper formed by a polyurethane sleeve of increased hardness, until the bottom, made on the groove of the movable holder, and the bottom of the stationary holder, abut against the end parts of the damper, and a thorn-groove connection that overlaps each other along with a different sliding bearing is formed by the mper separating them, a pre-calculated and experimentally established clearance is obtained between the movable and fixed cages, which ensures damping at maximum suspension travels in all spatial positions, and the end of the ball-shaped rod is fixed between two cavities in the form of truncated cones of two polyurethane bushings increased hardness without play and with an interference fit, provide rotation of the thrust around its axis by an angle from 0 to 360 degrees, the aforementioned bushings support polyurethane an increased hardness with a canned sleeve, the tightness is regulated by turning the threaded part of the tube along the threaded part of the glass with its fixation, the threaded part of the rod made on its other end is fixed in the threaded hole of the movable holder of the other hinged part of the L-shaped form with one glass in which polyurethane bushings in fixed and movable clips, they are fixed in the same way as fixed polyurethane bushings in the hinged part of the L-shaped with two glasses.

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