CN213734491U

CN213734491U - Swing arm assembly

Info

Publication number: CN213734491U
Application number: CN202023067669.2U
Authority: CN
Inventors: 侯山宝; 侯爱国; 刘夏兰
Original assignee: Zhejiang Shanbao Auto Parts Co ltd
Current assignee: Zhejiang Shanbao Auto Parts Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-07-20
Anticipated expiration: 2030-12-18

Abstract

The utility model provides a swing arm assembly belongs to auto-parts technical field. It has solved the high scheduling problem of current swing arm assembly use cost. This swing arm assembly includes bulb seat and body, the both ends of body all are equipped with the bush, the outer wall of bulb seat has the connecting plate of radial evagination, a plurality of bolts pass body and connecting plate and equal threaded connection has the nut, each bolt is around the setting of bulb seat, the bush includes bushing pipe, rubber intermediate level and interior bushing pipe, the rubber intermediate level has the buffer slot that twice symmetry and axial run through, bushing pipe welds with the body tip, the both ends of interior bushing pipe all stretch out bushing pipe setting and the both ends of interior bushing pipe and all inlay and be equipped with the jump ring, the rubber pad has still been inlayed at interior bushing pipe both ends, the inboard of rubber pad is contradicted in the bushing pipe tip, the outside of rubber pad is contradicted in the jump ring. The utility model has the advantages of low use cost, good buffering effect, long service life and the like.

Description

Swing arm assembly

Technical Field

The utility model belongs to the technical field of auto-parts, a car flying piece is related to, in particular to swing arm assembly.

Background

The automobile swing arm assembly is a connecting mechanism of a frame and wheels, and is used for guiding and supporting a suspension, so that the steering smoothness and the driving comfort are directly influenced.

For example, chinese patent literature discloses an automobile swing arm assembly [ application number: 201620582693.4, respectively; authorization notice number: CN205686113U ], it includes the swing arm body that wholly is the U type, is equipped with the bulb seat on the U type blind end of swing arm body, and the spherical articulated mandrel that has on the bulb seat, and the U type opening both ends of swing arm body respectively articulate through the bolt has the connecting rod, still is equipped with the reinforcing plate with swing arm body profile modeling on the swing arm body, and the bolt is equipped with the axle sleeve outward, is equipped with the rubber bush on the axle sleeve, and the connecting rod cover is located outside the rubber bush.

Foretell automobile swing arm assembly has improved the mechanical strength at swing arm body both ends through addding bolt and bearing, but it has changed the connected mode that the connecting rod passed two bushes simultaneously in the past, and it needs two connecting rods to articulate, and the installation of being not convenient for is arranged, and the buffering effect of rubber bush department is also not ideal enough, and the bulb seat can not be dismantled, can't change alone after damaging, need change whole swing arm assembly, and use cost is high.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a swing arm assembly that use cost is low, be convenient for the installation arrange, the buffering is effectual and long service life.

The purpose of the utility model can be realized by the following technical proposal: a swing arm assembly comprises a ball head seat and a U-shaped body, wherein a mounting hole for embedding the ball head seat is formed in the bending part of the body, a ball head pin is arranged in the ball head seat, bushings are arranged at two end parts of the body and are coaxially arranged, the swing arm assembly is characterized in that the outer wall of the ball head seat is provided with a connecting plate protruding outwards in the radial direction, a plurality of bolts penetrate through the body and the connecting plate and are in threaded connection with nuts, the bolts are arranged around the ball head seat, the bushings comprise an outer liner tube, a rubber intermediate layer and an inner liner tube, the rubber intermediate layer is vulcanized and fixedly connected between the outer liner tube and the inner liner tube, the rubber intermediate layer is provided with two buffer grooves which are symmetrical and axially penetrate through, the sections of the two buffer grooves are arc-shaped, the inner cambered surfaces of the two buffer grooves are oppositely arranged, the outer liner tube is welded with the end parts, two ends of the inner liner tube extend out of the outer liner tube and two ends of the inner liner tube are respectively embedded with clamp springs, rubber pads are further embedded at two ends of the inner lining pipe, the inner sides of the rubber pads are abutted to the end part of the outer lining pipe, and the outer sides of the rubber pads are abutted to the snap springs.

In the swing arm assembly, the number of the connecting plates is two, the connecting plates are arranged in a manner of bilateral symmetry to the ball seat, each connecting plate is provided with two bolts, and the two bolts have different rotation directions.

In the swing arm assembly, the front surfaces of the two ends of the body at the ball pin side are provided with the first reinforcing ribs which are integrally formed, one ends of the first reinforcing ribs are welded on the corresponding outer liner tubes, and the other ends of the first reinforcing ribs extend to the bending part of the body.

In foretell swing arm assembly, the back of body both ends dorsad bulb round pin side all have strengthening rib two, the back of body still has the backup pad that is triangle-shaped, one side of backup pad is connected in strengthening rib two, the opposite side of backup pad is connected in the department of buckling of body.

In foretell swing arm assembly, the front of body department of buckling have and be curved chimb one, chimb one be close to one side connecting plate, the department of buckling of body still has and is curved chimb two, chimb two be close to the opposite side connecting plate.

In the swing arm assembly, the body is provided with a connecting block protruding towards the ball stud side, and the connecting block is provided with a connecting hole.

Compared with the prior art, the swing arm assembly has the advantages of high structural strength, good bearing capacity, good load resistance, good buffering effect, no collision abnormal sound, capability of avoiding the abrasion of the rubber middle layer by sand and stone, long service life, capability of independently disassembling and replacing the ball head seat and low use cost.

Drawings

Fig. 1 is a front view of the structure of the swing arm assembly.

Fig. 2 is a structural side view of the swing arm assembly.

Fig. 3 is a structural sectional view of a bushing in the swing arm assembly.

Fig. 4 is a structural sectional view of the section a-a in fig. 3.

In the figure, 1, a ball socket; 2. a body; 3. a ball stud; 4. a connecting plate; 5. a bolt; 6. a nut; 7. an outer liner tube; 8. a rubber intermediate layer; 9. a liner tube; 10. a buffer tank; 11. a clamp spring; 12. a rubber pad; 13. reinforcing ribs I; 14. a second reinforcing rib; 15. a support plate; 16. a first convex edge; 17. a convex edge II; 18. connecting blocks; 19. and connecting the holes.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2, 3 and 4, the swing arm assembly includes a ball seat 1 and a U-shaped body 2, a mounting hole for embedding the ball seat 1 is formed at a bending portion of the body 2, a ball stud 3 is disposed in the ball seat 1, bushings are disposed at two ends of the body 2 and are coaxially disposed, a radially outwardly protruding connecting plate 4 is disposed on an outer wall of the ball seat 1, a plurality of bolts 5 penetrate through the body 2 and the connecting plate 4 and are in threaded connection with nuts 6, each bolt 5 is disposed around the ball seat 1, the bushings include an outer liner tube 7, a rubber intermediate layer 8 and an inner liner tube 9, the rubber intermediate layer 8 is vulcanized and fixedly connected between the outer liner tube 7 and the inner liner tube 9, the rubber intermediate layer 8 has two symmetrical and axially penetrating buffer slots 10, cross sections of the two buffer slots 10 are arc-shaped, inner arc surfaces of the two buffer slots 10 are oppositely disposed, the outer liner tube 7 is welded to an end portion of the body 2, two ends of the inner liner tube 9 extend out of the outer liner tube 7 and two ends of the inner liner tube 9 are respectively embedded with a snap spring 11, rubber pads 12 are embedded at two ends of the inner lining pipe 9, the inner sides of the rubber pads 12 abut against the end part of the outer lining pipe 7, and the outer sides of the rubber pads 12 abut against the snap springs 11.

The swing arm assembly enables the ball socket 1 to be disassembled and replaced through the arrangement of the bolts 5, the connecting plate 4 and the nuts 6, so that the use cost is reduced, and the bolts 5 are arranged around the ball socket 1, so that the connecting strength is high, and the bearing capacity of the ball socket 1 is ensured; the two bushings which are coaxially arranged are used for the penetration of the connecting rod, the connection mode does not need to be changed, the installation and the arrangement are convenient, the rigidity of the rubber middle layer 8 is weakened due to the arrangement of the buffer groove 10, and the buffer effect of the rubber middle layer 8 is improved; the clamp spring 11 and the rubber pad 12 play a limiting role, axial displacement of the lining pipe 9 is avoided, the rubber pad 12 avoids collision abnormal sound, the clamp spring 11 and the rubber pad 12 play a blocking role, sand and stone are prevented from entering the buffer groove 10 and wearing the rubber intermediate layer 8, and the working stability and the service life of the rubber intermediate layer 8 are guaranteed.

It is further said that, the quantity of connecting plate 4 is two and bilateral symmetry sets up in bulb seat 1, all has two bolts 5 and two bolts 5 on every connecting plate 4 to revolve to the difference, and the moment of torsion of two bolts 5 offsets each other on every connecting plate 4, and connecting plate 4 atress is even and firm.

The front surfaces of the two ends of the body 2, which are positioned at the side of the ball pin 3, are provided with the integrally formed reinforcing ribs I13, one ends of the reinforcing ribs I13 are welded to the corresponding outer liner pipes 7, the other ends of the reinforcing ribs I13 extend to the bending part of the body 2, and the arrangement of the reinforcing ribs I13 increases the structural strength, improves the bearing capacity and the load impact resistance of the swing arm assembly, and prolongs the service life; the back of body 2 both ends 3 sides dorsad ball stud all has two reinforcing ribs 14, and the back of body 2 still has the backup pad 15 that is triangle-shaped, and one side of backup pad 15 is connected in two reinforcing ribs 14, and the opposite side of backup pad 15 is connected in the department of buckling of body 2, and two reinforcing ribs 14 and backup pad 15 have further improved the structural strength of body 2, have improved bearing capacity and anti load impact ability, have prolonged life.

The front of body 2 department of buckling has and is curved chimb 16 one, and chimb 16 is close to one side connecting plate 4, and the department of buckling of body 2 still has and is curved chimb two 17, and chimb two 17 are close to opposite side connecting plate 4. The first convex edge 16 and the second convex edge 17 enable the structural strength of the bent part of the body 2 to be high, impact load transferred by the ball seat 1 is effectively borne, and the service life is long; the cambered surface of the evagination of chimb one 16 is towards one side connecting plate 4, and the cambered surface of the evagination of chimb two 17 is towards opposite side connecting plate 4, and when the collision takes place, chimb one 16 and chimb two 17 play the effect of blockking connecting plate 4 like this, have improved the resistance to crushing, avoid the wheel to sink in and arouse the injury.

During actual manufacturing, have on the body 2 to the convex connecting block 18 in bulb round pin 3 side, connecting block 18 is located body 2 and is close to its one end of buckling department in this embodiment, and connecting block 18 has connecting hole 19, and connecting block 18 supplies the bolt of frame department to wear to establish, plays the auxiliary connection effect, has increased body 2's bearing capacity and anti load impact ability, has prolonged life.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A swing arm assembly comprises a ball seat (1) and a U-shaped body (2), wherein the bending part of the body (2) is provided with a mounting hole for embedding the ball seat (1), a ball pin (3) is arranged in the ball seat (1), two end parts of the body (2) are respectively provided with a bushing and the two bushings are coaxially arranged, the swing arm assembly is characterized in that the outer wall of the ball seat (1) is provided with a radially outward convex connecting plate (4), a plurality of bolts (5) penetrate through the body (2) and the connecting plate (4) and are respectively in threaded connection with a nut (6), each bolt (5) is arranged around the ball seat (1), each bushing comprises an outer liner pipe (7), a rubber intermediate layer (8) and an inner liner pipe (9), the rubber intermediate layer (8) is vulcanized and fixedly connected between the outer liner pipe (7) and the inner liner pipe (9), the rubber intermediate layer (8) is provided with two buffer grooves (10) which are symmetrical and axially run through, the cross-section of two dashpot (10) is the relative setting of intrados of arc and two dashpot (10), bushing pipe (7) and body (2) tip weld mutually, the both ends of interior bushing pipe (9) all stretch out bushing pipe (7) setting and the both ends of interior bushing pipe (9) and all inlay and be equipped with jump ring (11), interior bushing pipe (9) both ends still inlay and be equipped with rubber pad (12), the inboard of rubber pad (12) contradict in bushing pipe (7) tip, the outside of rubber pad (12) contradicts in jump ring (11).

2. The swing arm assembly according to claim 1, wherein the number of the connecting plates (4) is two, the connecting plates are arranged symmetrically to the ball seat (1), each connecting plate (4) is provided with two bolts (5), and the rotating directions of the two bolts (5) are different.

3. A swing arm assembly according to claim 2, wherein the front of the ball stud (3) side at both ends of the body (2) is provided with a first integrally formed reinforcing rib (13), one end of the first reinforcing rib (13) is welded to the corresponding outer liner tube (7), and the other end of the first reinforcing rib (13) extends to the bent part of the body (2).

4. The swing arm assembly according to claim 3, wherein the back of the two ends of the body (2) facing away from the ball stud (3) is provided with a second reinforcing rib (14), the back of the body (2) is further provided with a triangular support plate (15), one side of the support plate (15) is connected to the second reinforcing rib (14), and the other side of the support plate (15) is connected to the bent part of the body (2).

5. A swing arm assembly according to claim 4, wherein the front face of the bending part of the body (2) is provided with a first arc-shaped convex edge (16), the first convex edge (16) is close to the connecting plate (4) at one side, the bending part of the body (2) is also provided with a second arc-shaped convex edge (17), and the second convex edge (17) is close to the connecting plate (4) at the other side.

6. A swing arm assembly according to claim 5 wherein the body (2) has a connecting block (18) projecting towards the ball stud (3), the connecting block (18) having a connecting hole (19).