CN217863687U

CN217863687U - Rear pull rod suspension assembly

Info

Publication number: CN217863687U
Application number: CN202222079397.0U
Authority: CN
Inventors: 刘中杰; 陈辉; 沈霄峰; 杨灵斌
Original assignee: Jianxin Zhaos Technology Co Ltd
Current assignee: Jianxin Zhaos Technology Co Ltd
Priority date: 2022-08-08
Filing date: 2022-08-08
Publication date: 2022-11-22
Anticipated expiration: 2032-08-08

Abstract

The application discloses back pull rod suspension assembly, including outer support, inner frame and rubber spare, the outer support in be provided with the circular shape mounting hole, the inner frame be located the mounting hole, inner frame and outer support pass through rubber spare and be connected, rubber spare include first buffer block and two rubber legs that bilateral symmetry set up, first buffer block laminating mounting hole internal face set up, have the interval between first buffer block and the inner frame, a side that first buffer block is close to the inner frame becomes the wave, first buffer block is located between two rubber legs, the inner frame is connected through two rubber legs with the outer support. The whole weight of the product is reduced, and the durability of the product is improved.

Description

Rear pull rod suspension assembly

Technical Field

The application relates to the field of automobile parts, in particular to a rear pull rod suspension assembly.

Background

The front of the rear pull rod suspension support is hinged with an automobile engine assembly, and the rear of the rear pull rod suspension support is longitudinally hinged with an automobile body to play a role in shock absorption. At present, engine assembly suspensions arranged by three points and four points are generally considered for suspension on cars and light buses, the three-point arrangement suspension generally comprises a left suspension, a right suspension and a rear pull rod suspension, and the four-point arrangement suspension generally comprises a left suspension, a right suspension and a front suspension. Three-point arrangement suspension is generally used for the motorcycle type that the power assembly discharge capacity is little, the moment of torsion is little, and the power that can bear of back pull rod suspension is relatively wanting little like this, and four-point arrangement suspension is generally used for the motorcycle type that the power assembly discharge capacity is big, the moment of torsion is big, and the power that bears shares front and back suspension. At present, the suspension layout is often limited by the space of a vehicle body and a power assembly, and sometimes even a vehicle with large displacement and large torque of the power assembly does not need to be suspended at three points, and when the vehicle waits for speed, vibration and noise generated by an engine are borne by a rear pull rod suspension.

The suspension of the front pull rod and the rear pull rod is a novel suspension of the rear pull rod in Chinese patent application; application (patent) No.: CN201220276490.4; the rubber spring comprises a circular arc-shaped first support, a circular arc-shaped second support, a core, a rubber main spring and an outer ring, wherein the inner diameter of the first support is larger than that of the second support, the first support and the second support are integrally connected, the outer ring is fixedly arranged on the inner side of the first support and is tightly matched with the first support, the core is fixedly vulcanized in the center of the outer ring through the rubber main spring, the front end and the rear end of the core are respectively provided with an arc-shaped inner groove, the rubber main spring is distributed in the inner groove and is provided with a circular arc-shaped bulge, a circular arc-shaped rubber collision block is vulcanized on the inner side of the outer ring, which is right opposite to the circular arc-shaped bulge of the rubber main spring, and the linear distance between the circular arc-shaped bulge of the rubber main spring and the rubber collision block is 2-3mm; the automobile speed-waiting jitter reducing device has the advantages that the automobile speed-waiting jitter can be reduced, and abnormal sound can not be generated when the automobile waits for the speed. .

There is chinese patent application "a rear pull rod suspension of automobile power assembly system", application (patent) No.: CN201320731911.2; including the aluminium support, the aluminium support includes pole body, and set up in big bush end and the little bush end at pole body both ends, be provided with big bush in the big bush end, be provided with little bush in the little bush end, core outlying rubber spare including interior core and vulcanization in the big bush, rubber spare encloses into first damping hole and second damping hole with big bush end inner wall, the rubber spare hits the piece including integrative preceding that sets up, hit the piece after and first muscle piece and the second muscle piece that the symmetry set up, the preceding terminal surface and the big bush end inner wall of first muscle piece are laminated tightly, the preceding terminal surface and the big bush end inner wall of second muscle piece are laminated tightly. Its advantage is that the rubber spare only vulcanizes the inner core, and the subassembly is few, with low costs, and at the in-process of driving, automobile power assembly produces the moment of torsion to back pull rod suspension, and the inner core is fixed motionless this moment, and the rubber spare moves along with aluminium support and only receives the pressure effect, and root is connected to first connection root and second is difficult for taking place deformation fracture, improves big bush fatigue resistance.

The existing rear pull rod is suspended, the number of rubber legs wrapped on the periphery of an inner core is large, the structure is complex, and the product is heavy integrally. The existing rear pull rod is suspended or is not provided with a rubber limiting block or a conventional rectangular limiting block, so that the comfort is poor in the vehicle speed change process.

SUMMERY OF THE UTILITY MODEL

The utility model provides a back pull rod suspension assembly reduces the whole weight of product, promotes the durability of product.

The technical scheme adopted by the application is as follows: the utility model provides a back pull rod suspension assembly, includes outer support, inner frame and rubber spare, the outer support in be provided with the circular shape mounting hole, the inner frame be located the mounting hole, inner frame and outer support pass through the rubber spare and be connected, the rubber spare include two rubber legs that first buffer block and bilateral symmetry set up, first buffer block laminating mounting hole internal face set up, there is the interval between first buffer block and the inner frame, a side one-tenth wave that first buffer block is close to the inner frame, first buffer block is located between two rubber legs, inner frame and outer support are connected through two rubber legs.

Compared with the prior art, the rubber leg that has just only two rubber legs in the skeleton periphery, has simplified the rubber leg quantity that sets up in the skeleton periphery, and the vulcanization shaping of being convenient for has correspondingly also alleviateed the whole weight of this part. Two rubber legs which are symmetrically arranged are adopted, so that the balance and stability are realized during stress, and the durability of the product is effectively improved. In addition, this application sets up first buffer block, and first buffer block is located between two rubber legs. Under the vehicle acceleration circumstances, the inner frame contacts with first buffer block, and because of first buffer block is close to a side waviness of inner frame, the stress surface shock attenuation buffering of first buffer block is effectual. The vehicle acceleration early stage is specifically shown, and the travelling comfort is stronger, and the controllability is good after accelerating.

In some embodiments of the present application, the outer contour of the inner frame is in a trapezoid-like structure, and the outer contour of the inner frame comprises a short side, a long side and two sides connecting the short side and the long side, and the two sides are wrapped by the two rubber legs. The rubber leg of this application is good with the structural strength who is connected of inner frame promptly. The problem that the inner framework and the rubber legs are not easy to fall off after long-term use is solved.

The included angle between the two rubber legs is less than 180 degrees.

The distance between the long side and the short side is larger than the distance between the two side edges. That is to say, increased the width of rubber leg, reduced the deformation of rubber leg, improved the life of product.

Specifically, the outer contour of the inner skeleton is a rounded arc-shaped structure.

In some embodiments of this application, first buffer block be located two rubber leg contained angles and be less than 180 one side, the inner frame on be provided with just installing port, just installing port skew inner frame's center, just installing port is close to first buffer block and sets up.

In some embodiments of the present application, the rubber member further includes a second buffer block, the second buffer block is located between the two rubber legs, and the second buffer block is disposed opposite to the first buffer block.

In some embodiments of the application, the second buffer block is attached to the inner wall surface of the mounting hole, one side, close to the inner frame, of the second buffer block is a plane, a protruding block is arranged at the center of the plane, and a gap exists between the protruding block and the inner frame. The lug is the effect part in direct and the inner frame contact in whole second buffer block.

In some embodiments of the present application, the height of the inner frame is the length of the inner frame in the axial direction, the height of the inner frame is greater than the height of the outer bracket, and the heights of the rubber leg, the first buffer block and the second buffer block are all less than the height of the outer bracket. This application has reduced the height of rubber spare in the product, can each metal material size of effectual reduction to make the total weight of product reduce, also can promote product life simultaneously.

In some embodiments of the present application, the external frame includes two legs and a mounting seat, the mounting hole is located in the mounting seat, and the basic shape of the mounting seat forms a polygon. The two support legs are positioned at the same side of the outer support, and the two support legs and the mounting seat part form a U-shaped structural part.

The end parts of the two supporting legs are provided with side mounting openings, and the axial directions of the side mounting openings are perpendicular to the axial direction of the mounting hole.

In some embodiments of the present application, the mounting seat is provided with two weight-reduction groove sets, and the two weight-reduction groove sets are respectively disposed near the two brackets. Specifically, the weight-reducing groove group is of a long and narrow structure. The weight-reducing groove group comprises weight-reducing grooves on two axial side surfaces of the mounting seat. The two weight reduction grooves are identical in structure and are oppositely arranged. The weight of the product is further reduced by arranging the weight reduction groove, and the light weight is realized.

Drawings

The present application will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and therefore should not be taken as limiting the scope of the present application. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on the concept of a composition or construction of the object being described and may include exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is a schematic structural diagram of the present application;

FIG. 2 is a front view of the present application;

fig. 3 is a cross-sectional view of the AA section in fig. 2.

Wherein the reference numerals are specified as follows: 1. an outer support; 11. a leg; 12. a mounting seat; 2. an inner skeleton; 21. a short side; 22. a long side; 23. a side edge; 31. a first buffer block; 32. a rubber leg; 33. a second buffer block; 34. a bump; 4. mounting holes; 5. a weight-reducing tank group; 6. and a side mounting port.

Detailed Description

The present application will now be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

As shown in fig. 1 to 3: the utility model provides a back pull rod suspension assembly, includes outer support 1, inner frame 2 and rubber spare, outer support 1 in be provided with circular shape mounting hole 4, inner frame 2 be located mounting hole 4, inner frame 2 be connected through the rubber spare with outer support 1, the rubber spare include first buffer block 31 and two rubber legs 32 that bilateral symmetry set up, the 4 internal faces of first buffer block 31 laminating mounting hole set up, have the interval between first buffer block 31 and the inner frame 2, a side one-tenth wave that first buffer block 31 is close to inner frame 2, first buffer block 31 is located between two rubber legs 32, inner frame 2 is connected through two rubber legs 32 with outer support 1.

Compared with the prior art, the rubber leg forming machine has the advantages that the rubber legs 32 are arranged on the periphery of the inner framework 2 and only two rubber legs 32 are arranged on the periphery of the inner framework 2, the number of the rubber legs 32 arranged on the periphery of the inner framework 2 is simplified, vulcanization forming is facilitated, and the whole weight of the rubber leg forming machine is correspondingly reduced. Two rubber legs 32 which are symmetrically arranged are adopted, so that the balance and stability are realized during stress, and the durability of the product is effectively improved. In addition, the present application provides a first buffer block 31, the first buffer block 31 being located between two rubber legs 32. Under the condition of vehicle acceleration, inner frame 2 and first buffer block 31 contact, because of first buffer block 31 is close to one side waviness of inner frame 2, the stress surface shock attenuation buffering effect of first buffer block 31 is good. The vehicle has the concrete characteristics of stronger comfort and good controllability after acceleration in the vehicle acceleration initial stage.

The outer contour of the inner framework 2 is in a trapezoid-like structure and comprises a short side 21, a long side 22 and two side edges 23 which are used for connecting the short side 21 with the long side 22, and the two side edges 23 are wrapped by two rubber legs 32. That is, the rubber leg 32 of the present invention has excellent structural strength in connection with the inner frame 2. The problem that the inner frame 2 and the rubber leg 32 are not easy to fall off after long-term use is solved. The angle between the two rubber legs 32 is less than 180 degrees.

The distance between the long side 22 and the short side 21 is greater than the distance between the two sides 23. That is, the width of the rubber leg 32 is increased, the deformation of the rubber leg 32 is reduced, and the service life of the product is prolonged. Specifically, the outer contour of the inner frame 2 is a rounded arc-shaped structure.

First buffer block 31 be located two rubber leg 32 contained angles and be less than 180 one side, inner frame 2 on be provided with just installing port, the skew inner frame 2's of just installing port center, just installing port is close to first buffer block 31 and sets up.

The rubber part further comprises a second buffer block 33, the second buffer block 33 is located between the two rubber legs 32, and the second buffer block 33 and the first buffer block 31 are arranged oppositely.

The second buffer block 33 is attached to the inner wall surface of the mounting hole 4, one side, close to the inner frame 2, of the second buffer block 33 is a plane, a convex block 34 is arranged at the center of the plane, and a gap exists between the convex block 34 and the inner frame 2. The projection 34 is an acting part of the whole second buffer block 33 which is directly contacted with the inner frame 2.

The other contents of the second embodiment are the same as those of the first embodiment.

In the third embodiment, as shown in fig. 1 to 3, the length of the inner frame 2 in the axial direction is the height of the inner frame 2, the height of the inner frame 2 is greater than the height of the outer bracket 1, and the heights of the rubber leg 32, the first buffer block 31 and the second buffer block 33 are all less than the height of the outer bracket 1. This application has reduced the height of rubber spare in the product, can each metal material size of effectual reduction to make the total weight of product reduce, also can promote product life simultaneously.

The external support 1 comprises two support legs 11 and a mounting seat 12, the mounting hole 4 is positioned in the mounting seat 12, and the basic shape of the mounting seat 12 is polygonal. The two legs 11 are located on the same side of the outer frame 1, and the two legs 11 and the mounting seat 12 partly constitute a U-shaped structural member.

The end parts of the two supporting legs are provided with side mounting openings 6, and the axial directions of the side mounting openings 6 are perpendicular to the axial direction of the mounting hole 4.

The mounting base 12 is provided with two weight-reducing groove groups 5, and the two weight-reducing groove groups 5 are respectively arranged close to the two supports. Specifically, the weight-reducing groove group 5 is of an elongated structure. The weight-reduction groove group 5 includes weight-reduction grooves on both axial side surfaces of the mount 12. The two weight-reducing grooves are identical in structure and are oppositely arranged. The weight of the product is further reduced by arranging the weight reduction grooves, and the light weight is realized.

The other contents of the third embodiment are the same as those of the first embodiment or the second embodiment.

The present application has been described in detail above, and specific examples thereof are used herein to explain the principles and implementations of the present application, which are presented solely to aid in understanding the present application and its core concepts. It should be noted that, for those skilled in the art, without departing from the principle of the present application, the present application can also make several improvements and modifications, and those improvements and modifications also fall into the protection scope of the claims of the present application.

Claims

1. The utility model provides a back pull rod suspension assembly, its characterized in that includes outer support (1), inner frame (2) and rubber spare, outer support (1) in be provided with circular shape mounting hole (4), inner frame (2) be located mounting hole (4), inner frame (2) be connected through rubber spare with outer support (1), rubber spare includes two rubber legs (32) that first buffer block (31) and bilateral symmetry set up, first buffer block (31) laminating mounting hole (4) internal face setting, there is the interval between first buffer block (31) and inner frame (2), a side that first buffer block (31) are close to inner frame (2) becomes the wave, first buffer block (31) are located between two rubber legs (32), inner frame (2) are connected through two rubber legs (32) with outer support (1).

2. A rear suspension assembly as claimed in claim 1, wherein the outer contour of the inner frame (2) is a trapezoid-like structure comprising a short side (21), a long side (22), and two side edges (23) connecting the short side (21) and the long side (22), and two rubber legs (32) wrapping the two side edges (23); the outer contour of the inner framework (2) is of a round and smooth arc-shaped structure.

3. A rear stay suspension assembly as claimed in claim 1, wherein the angle between the rubber legs (32) is less than 180 degrees.

4. A rear suspension assembly as claimed in claim 3, wherein the first bumper block (31) is located at one side of the two rubber legs (32) with an included angle of less than 180 °, the inner frame (2) is provided with a positive mounting opening, the positive mounting opening is offset from the center of the inner frame (2), and the positive mounting opening is located close to the first bumper block (31).

5. A rear stay suspension assembly as claimed in claim 1 wherein said rubber member further comprises a second bumper (33), said second bumper (33) being located between the two rubber legs (32), the second bumper (33) being disposed opposite the first bumper (31).

6. A rear pull rod suspension assembly according to claim 5, wherein the second buffer block (33) is attached to the inner wall surface of the mounting hole (4), one side of the second buffer block (33) close to the inner frame (2) is a plane, a convex block (34) is arranged at the center of the plane, and a gap exists between the convex block (34) and the inner frame (2).

7. A rear stay suspension assembly as claimed in claim 1, wherein the length of the inner frame (2) in the axial direction is the height of the inner frame (2), the height of the inner frame (2) is greater than the height of the outer bracket (1), and the heights of the rubber leg (32), the first buffer block (31) and the second buffer block (33) are all less than the height of the outer bracket (1).

8. A rear stay suspension assembly according to claim 1, wherein said outer bracket (1) comprises two legs (11) and a mounting seat (12), said mounting hole (4) being located in said mounting seat (12), said mounting seat (12) having a polygonal basic shape; the two support legs (11) are positioned at the same side of the outer bracket (1), and the two support legs (11) and the mounting seat (12) partially form a U-shaped structural member.

9. A rear stay suspension assembly as claimed in claim 8, wherein the ends of the two legs are provided with side mounting openings (6), the axial direction of the side mounting openings (6) being perpendicular to the axial direction of the mounting holes (4).

10. A rear stay suspension assembly according to claim 8, wherein the mounting seat (12) is provided with two weight-reduction groove sets (5), the two weight-reduction groove sets (5) being provided adjacent to the two brackets, respectively.