CN209191616U - A kind of rear axle bushing, hind axle assembly and automobile suspension system - Google Patents

Abstract

The utility model discloses a kind of rear axle bushing, hind axle assembly and automobile suspension system, rear axle bushing includes bushing outer tube, vulcanized rubber and bushing inner core, bushing inner core includes left and right two, one end of one of bushing inner core has axial aperture, the other end is shackle structure, one end of another bushing inner core is the connecting shaft cooperated with axial aperture, and the other end is also shackle structure；The connecting shaft of one bushing inner core is inserted into the axial aperture of another bushing inner core, and is located in bushing outer tube, is fixed as one by vulcanized rubber and bushing outer tube, the shackle structure of two bushing inner cores is located at outside bushing outer tube；One of bushing inner core is located at the position on the outside of bushing outer tube nozzle integrally formed with postive stop baffle, limits to bushing axial displacement.The utility model is improved by the structure of bushing inner tube, and rear axle bushing is enabled to be well adapted for the design of bushing axial property, is able to satisfy the demand that rear axle adjusts the performances such as the handling, comfort of vehicle.

Description

A kind of rear axle bushing, hind axle assembly and automobile suspension system

Technical field

The utility model belongs to automotive suspension chassis part technical field, and in particular to the rear axle bushing on automotive suspension chassis Structure.

Background technique

The rear axle on automotive suspension chassis is load-bearing part important on automobile, and the handling and comfort to vehicle also have very Important influence.Hind axle assembly is to realize to connect by rear axle bushing and car body, and rear axle bushing is mainly held in the structure of rear axle The function of transmitting, damping force is carried on a shoulder pole, the rigidity of rear axle bushing has very important work to realization chassis performance (manipulation, comfort) With.

As shown in Figure 1 and Figure 2, traditional back bushing, which covers, has bushing outer tube body 1 and bushing interior tube body 3, in bushing Pipe 3 is fixed in bushing outer tube body 3 by vulcanization of rubber structure 2, and the design of bushing interior tube body 3 is usually through type, such bushing Interior tube body is unfavorable for the design of bushing axial property, and bushing is axial without constraint, and axial rigidity is smaller, be unfavorable for chassis performance (manipulation, Comfort) reach.

Patent document CN201620705747.1 discloses a kind of inner tube for automotive suspension bushing comprising is placed on Tube body in bushing, the both ends of tube body are respectively equipped with big connector and small connector, and big connector is equipped with and connects hole greatly, and small connector is equipped with It is small to connect hole, be respectively equipped between tube body and big connector and between tube body and small connector the big defining flange for preventing bushing from falling off and Small defining flange.This structure is simple, is conducive to sulfuration process design, implements, but since inner tube is monoblock type, bushing axial rigidity can It adjusts range that there is limitation, is unfavorable for the realization of chassis performance (manipulation, comfort).

Summary of the invention

The purpose of this utility model is to provide a kind of rear axle bushing, hind axle assembly and automobile suspension systems, pass through bushing The structure of inner tube is improved, and rear axle bushing is enabled to be well adapted for the design of bushing axial property, is met rear axle and is adjusted vehicle The demand of the performances such as handling, comfort.

The technical solution of the utility model is as follows:

A kind of rear axle bushing, including bushing outer tube, vulcanized rubber and bushing inner core, the bushing inner core include left and right two One end of bushing inner core, one of bushing inner core has axial aperture, and the other end is shackle structure, another bushing inner core One end is the connecting shaft cooperated with axial aperture, and the other end is also shackle structure.Rear axle bushing is by by bushing inner core Connecting shaft is inserted into the axial aperture of another bushing inner core, and is located in bushing outer tube, and vulcanized rubber and bushing outer tube are passed through It is fixed as one, the shackle structure of two bushing inner cores is located at outside bushing outer tube.One of bushing inner core is located at bushing outer tube Position on the outside of nozzle limits bushing axial displacement integrally formed with postive stop baffle.

Further, the bushing inner core with axial aperture runs through entire inner tube, pipe outer wall and the limiting block Rubber pad is housed between plate, plays the role of adjusting rear axle bushing axial rigidity.

Further, the rubber mat component is embedded in the groove of vulcanized rubber outer end formation, can further be adjusted Rear axle bushing axial rigidity.

The utility model also proposes a kind of hind axle assembly, including rear axle, and the both ends of the rear axle are covered by back bushing assembles The connection of rear axle bushing described in casing, rear axle bushing are connect by lifting lug with car body.

The utility model is it is further proposed that a kind of automobile suspension system, with hind axle assembly above-mentioned.

The advantages of the utility model is as follows: bushing inner tube is divided into the two sections of tube cores in left and right by the utility model, and two sections can be from Both ends grafting is assembled in outer tube, side axial limiting baffle can be thus integrally designed onto wherein tube core, be worked as bushing By, because postive stop baffle stops, the axial rigidity of bushing increases, to meet the design of bushing axial rigidity performance, favorably when axial force Reach in the performance of hind axle assembly.Such combination can overcome monoblock type inner tube design integrated axial baffle be not easy (can not Meet sulfuration process requirement), it can also overcome and axial baffle is separately provided need to increase secondary build-up member, increase assembly difficulty etc. Deficiency.

Detailed description of the invention

Fig. 1 is traditional rear axle bush Assembly outline drawing.

Fig. 2 is traditional rear axle bush Assembly sectional view.

Fig. 3 is the outline drawing of the utility model rear axle bushing.

Fig. 4 is the sectional view of the utility model rear axle bushing.

Fig. 5 is the hind axle assembly figure with rear axle bushing.

Specific embodiment

The structure of the following is further explained with reference to the attached drawings the utility model:

As shown in Figure 3 and Figure 4, the structure of this rear axle bushing include bushing outer tube 10, vulcanized rubber 7, rubber washer 6, Bushing inner core, the bushing inner core include left and right two, i.e. bushing left inner tube 9 and bushing right 8.Wherein bushing inner tube is casting The machine of making adds part.

The left side of the bushing left inner tube 9 of this rear axle bushing is left shackle structure 4, and lifting lug hole thereon is used for will by bolt Back bushing set is assembled on car body.The centre of bushing left inner tube 9 is integrally formed with one piece of circular postive stop baffle 5, for limiting Bushing axial rigidity can be changed to meet chassis performance requirement, bushing left inner tube 9 in axial displacement when bushing is by large axial force Right side be connecting shaft 13, be used for and bushing right 8 assemble.

The left side of the bushing right 8 of this rear axle bushing has axial aperture 11, for assembling the connection of bushing left inner tube 9 Axis 13, right side are right shackle structure 12, and lifting lug hole is used to that back bushing set to be assembled to car body by bolt thereon.

When assembly, first the bushing right 8 of rear axle bushing is inserted into bushing outer tube 10, by vulcanized rubber 7 by two Divide and passes through sulfuration process bonding.Then rubber washer 6 is assemblied in the postive stop baffle 5 and bushing right 8 of bushing left inner tube 9 Between outer wall, it is in active state；Finally by the axial aperture of the connecting shaft insertion bushing right 8 of bushing left inner tube 9, the two It is assembled by being full of to be cooperatively connected.

It is the hind axle assembly structure with the above rear axle bushing shown in Fig. 5, there is back bushing suit at the both ends of hind axle assembly 16 With casing 15, for back bushing suit with 15 sets of casing on the bushing outer tube 10 of rear axle bushing 14, rear axle bushing passes through its lifting lug knot Structure can be connect with car body.

The hind axle assembly of automobile suspension system using the above structure, lateral force is generated in full-vehicle steering, and lateral force passes through Hind axle assembly 16 is transferred to rear axle bushing 14, and set axis generates axial movement, hindered when bushing is axially moved by side postive stop baffle 5 Gear, bushing axial rigidity moment increase, that is, can inhibit vehicle inclination.

Claims (6)

1. a kind of rear axle bushing, including bushing outer tube, vulcanized rubber and bushing inner core, which is characterized in that the bushing inner core packet Left and right two is included, one end of one of bushing inner core has axial aperture, and the other end is shackle structure, another bushing inner core One end be the connecting shaft cooperated with axial aperture, the other end is also shackle structure；The connecting shaft insertion of one bushing inner core is another In the axial aperture of one bushing inner core, and it is located in bushing outer tube, is fixed as one by vulcanized rubber and bushing outer tube, two The shackle structure of a bushing inner core is located at outside bushing outer tube；One of bushing inner core is located at the position on the outside of bushing outer tube nozzle Integrally formed with postive stop baffle, bushing axial displacement is limited.

2. rear axle bushing according to claim 1, which is characterized in that the bushing inner core with axial aperture is through whole A inner tube is equipped with rubber pad between pipe outer wall and the postive stop baffle, play the role of adjusting rear axle bushing axial rigidity.

3. rear axle bushing according to claim 2, which is characterized in that the rubber mat component is embedded in vulcanized rubber outer end In the groove of formation.

4. rear axle bushing according to claim 1,2 or 3, which is characterized in that the bushing inner core is that casting machine adds part.

5. a kind of hind axle assembly, including rear axle, which is characterized in that the both ends of the rear axle are by back bushing suit with casing and power Benefit requires described in any item rear axle bushings of 1-4 to connect, and rear axle bushing is connect by lifting lug with car body.

6. a kind of automobile suspension system, which is characterized in that have hind axle assembly described in claim 5.