CN217863689U - Suspension assembly and vehicle - Google Patents

Abstract

The utility model provides a suspension assembly and vehicle belongs to vehicle technical field, including trailing arm, suspension body, anti torque arm. The suspension body comprises a suspension framework connected with the vehicle body and a first rubber main spring fixedly arranged on the suspension framework; the bracket arm is connected with the first rubber main spring. The torsion-resistant arm, the suspension body and the bracket arm are sequentially connected, the torsion-resistant arm comprises an torsion-resistant framework, the torsion-resistant framework is provided with a first connecting end and a second connecting end, and the first connecting end is movably connected with the first rubber main spring; the second connecting end is provided with a second main rubber spring which is movably connected to the vehicle body. The torque born by the supporting arm is transmitted to the vehicle body through the first rubber main spring, one path of the torque is transmitted to the vehicle body through the suspension framework, and the other path of the torque is transmitted to the vehicle body through the anti-torsion framework and the second rubber main spring. When the suspension assembly is stressed, the suspension assembly and the torsion-resistant arm are stressed simultaneously, and the risk of damage caused by insufficient strength of a single part is reduced.

Description

Suspension assembly and vehicle

Technical Field

The utility model belongs to the technical field of the vehicle, concretely relates to suspension assembly and vehicle.

Background

With the promotion of national energy-saving and emission-reduction policies, environmental protection is more and more emphasized, and a hybrid vehicle capable of simultaneously realizing fuel oil driving and electric driving is more and more popular with common consumers.

In a hybrid vehicle type, the arrangement form of a power assembly is mostly horizontal front drive. The power assemblies mostly adopt a pendulum type suspension arrangement structure. The pendulum suspension system has the advantages of simple structure, low cost, good vibration isolation effect, convenient design, convenient whole vehicle design and arrangement and the like, and is increasingly widely applied in the field of automobile suspension systems.

The left/right suspension of the transverse vehicle type which applies a pendulum suspension system (the left/right suspension is taken as a suspension point, the left/right suspension can be fixed at the upper end like a pendulum, and the lower end swings like a pendulum), and the side wall of a bridge support is usually taken as an X-direction anti-torsion limiting structure.

Because the hybrid vehicle type has two powers of fuel and electric, when the two powers act simultaneously, the torque can reach the maximum value and is far larger than that of the conventional power. The left/right suspension structure with the conventional design has a high fracture risk (corresponding to the X direction of the left/right suspension) when bearing large torque output by the power assembly, and is easy to cause part failure.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a suspension assembly and vehicle aims at overcoming the not enough problem of left/right suspension assembly torsional property among the prior art, promotes the durability of suspension.

In order to achieve the above object, the present invention adopts the following technical solutions: there is provided a suspension assembly comprising:

the bracket arm is connected with the power assembly;

the suspension body comprises a suspension framework connected with a vehicle body and a first rubber main spring fixedly arranged on the suspension framework; the supporting arm is connected with the first rubber main spring;

the torsion resisting arm, the suspension body and the support arm are sequentially connected; the torsion-resistant arm comprises a torsion-resistant framework, the torsion-resistant framework is provided with a first connecting end and a second connecting end, and the first connecting end is movably connected with the first rubber main spring; the second connecting end is provided with a second main rubber spring which is movably connected to the vehicle body;

and the torque borne by the supporting arm passes through the first rubber main spring, one path of the torque is transmitted to the vehicle body through the suspension framework, and the other path of the torque is transmitted to the vehicle body through the anti-torsion framework and the second rubber main spring.

With reference to the first aspect, in a possible implementation manner, the method further includes: and the torsion-resistant arm is movably connected with the supporting arm through the first connecting piece.

With reference to the first aspect, in a possible implementation manner, the supporting arm has a dowel bar extending into the first rubber main spring, the first connecting piece is connected to the dowel bar, and the first connecting end is movably connected to the first connecting piece.

With reference to the first aspect, in one possible implementation manner, the dowel bar is in vulcanization connection with the first main rubber spring.

With reference to the first aspect, in a possible implementation manner, a shock absorption sleeve and an inner ring are arranged in the connecting hole of the first connecting end, the inner ring is embedded in the shock absorption sleeve, the first connecting piece is slidably connected with the inner ring, and the shock absorption sleeve is connected with the anti-torsion framework.

With reference to the first aspect, in a possible implementation manner, an anti-disengaging portion is disposed at an outer end of the first connecting member, and a distance from the anti-disengaging portion to the suspension body is greater than an axial width of the first connecting end.

With reference to the first aspect, in a possible implementation manner, the suspension framework includes a suspension bridge and a base disposed in a bridge hole of the suspension bridge, wherein the base is vulcanization-connected to the suspension bridge through the first rubber main spring, and two ends of the suspension bridge are fastened to a vehicle body.

With reference to the first aspect, in a possible implementation manner, the second rubber main spring includes an inner core, main spring rubber, and an outer ring that are sequentially nested from inside to outside, and the outer ring is press-fitted in a connecting hole of the second connecting end of the anti-torsion framework; the torsion resistant framework is connected to the vehicle body through a second connecting piece penetrating through the inner core.

With reference to the first aspect, in a possible implementation manner, the second rubber main spring includes a main spring rubber and an inner core embedded in the main spring rubber, and the inner core is connected to the connecting hole of the second connecting end of the torsion-resistant framework through vulcanization of the main spring rubber; the torsion resistant framework is connected to the vehicle body through a second connecting piece penetrating through the inner core.

The utility model provides a suspension assembly, compared with the prior art, beneficial effect lies in: the torque born by the bracket arm is transmitted to the vehicle body through the first rubber main spring and the suspension framework on one path, and the torque is transmitted to the vehicle body through the anti-torsion framework and the second rubber main spring on the other path. Because the stress of the supporting arm is not completely applied to the suspension body but is jointly born by the anti-torque arm, the anti-torque arm shares the stress of the suspension assembly in the X direction, and the stress of the suspension assembly in the X direction is reduced, so that the risk of stress fracture of the suspension assembly is greatly reduced, and the durability of the suspension assembly is improved.

In a second aspect, the embodiments of the present invention further provide a vehicle, including the suspension assembly.

The utility model provides a vehicle, because anti-torque arm has shared suspension assembly X to partial atress, consequently alleviateed the cracked risk of suspension assembly atress greatly, promoted the durability of suspension assembly.

Drawings

Fig. 1 is a schematic perspective view of a suspension assembly according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a suspension assembly according to an embodiment of the present invention;

fig. 3 is a schematic front view of a suspension assembly according to an embodiment of the present invention;

FIG. 4 is a schematic top view of the suspension assembly shown in FIG. 3;

FIG. 5 isbase:Sub>A sectional view taken along line A-A of FIG. 4;

fig. 6 is a schematic perspective view of a torsion-resistant arm according to an embodiment of the present invention;

fig. 7 is a schematic top view of a torsion arm according to an embodiment of the present invention;

fig. 8 is a schematic front view of a torsion arm according to an embodiment of the present invention;

FIG. 9 is a sectional view taken along line B-B of FIG. 8;

description of reference numerals:

1. a bracket arm; 11. a threaded hole; 2. a suspension body; 21. suspending a bridge; 22. a first rubber main spring; 23. a base; 3. a torsion arm; 31. a first connection end; 32. an anti-torsion framework; 33. a second connection end; 34. a second rubber main spring; 341. main spring rubber; 342. an inner core; 35. an inner ring; 36. a shock-absorbing sleeve; 4. a second connecting member; 5. a first connecting member.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Note that, in the description of the present invention, XYZ three-dimensional directions are XYZ three-dimensional coordinates as shown in fig. 1.

Referring to fig. 1 to 9, a suspension assembly according to the present invention will now be described. The suspension assembly comprises a supporting arm 1, a suspension body 2 and a torsion resisting arm 3, wherein the supporting arm 1 is connected with a power assembly (such as an engine, a speed changer and an electric driver) and moves along with the power assembly.

Referring to fig. 1 to 5, the suspension body 2 includes a suspension frame connected to a vehicle body and a first main rubber spring 22 fixed to the suspension frame; the bracket arm 1 is connected with the first rubber main spring 22, the bracket arm 1 generates a limiting effect through the first rubber main spring 22 and the suspension framework, and the received torsion is transmitted to the suspension framework after being buffered and damped by the first rubber main spring 22 and is transmitted to a vehicle body through the suspension framework.

Referring to fig. 1 to 9, the torsion-resistant arm 3, the suspension body 2 and the bracket arm 1 are sequentially connected, the torsion-resistant arm 3 comprises a torsion-resistant framework 32, the torsion-resistant framework 32 has a first connecting end 31 and a second connecting end 33, and the first connecting end 31 is movably connected with the first main rubber spring 22; the second connecting end 33 is provided with a second main rubber spring 34, the second main rubber spring 34 being movably connected to the vehicle body.

The torque borne by the bracket arm 1 is transmitted to the vehicle body through the first rubber main spring 22, the suspension framework and the torsion-resistant framework 32 and the second rubber main spring 34.

The utility model provides an antitorque connection structure of suspension body 2 compares with prior art, and beneficial effect lies in: the torque born by the bracket arm 1 is transmitted to the vehicle body through the first rubber main spring 22, the suspension framework and the anti-torsion framework 32 and the second rubber main spring. Because the stress of the supporting arm 1 is not completely applied to the suspension body 2, but is borne by the torsion-resistant arms 3 together, the torsion-resistant arms 3 share the stress of the suspension body 2 in the X direction, and the stress of the suspension body 2 in the X direction is reduced, so that the risk of stress fracture of the suspension body 2 is greatly reduced, and the durability of the suspension body 2 is improved.

The utility model provides an antitorque connection structure of suspension body 2, X through the 3 reinforcing suspension bodies of anti-torque arm is to antitorque performance. When the suspension body 2 is subjected to X-direction force, the suspension body 2 and the torsion-resistant arm 3 are simultaneously stressed, and the risk of damage caused by insufficient strength of a single part is reduced.

The suspension framework and the torsion-resistant arm 3 are connected with the vehicle body through rubber main springs, and the rubber main springs have the effects of vibration reduction, noise reduction and buffering.

When the power assembly generates a large torque, the acting force of the pendulum suspension left/right suspension body 2 generally acts in the X direction, so that the torsion-resistant arm 3 of the present embodiment also acts in the X direction, that is, the action of the torsion-resistant arm 3 is consistent with the swinging direction of the suspension body 2, the stress of the suspension body 2 can be better shared, the torsion borne by the suspension body 2 is reduced, and the risk of breaking the suspension body 2 is avoided.

As shown in fig. 1 to 5, the suspension assembly provided in this embodiment further includes a first connecting member 5, and the torsion-resistant arm 3 is movably connected to the bracket arm 1 through the first connecting member 5. Specifically, the first connecting piece 5 passes through the first connecting end 31 to be connected with the first rubber main spring 22, and the bracket arm 1 is connected with the first rubber main spring 22; alternatively, the first connecting member 5 is directly connected to the bracket 1 through the first connecting end 31 and the first main rubber spring 22. The torque borne by the bracket arm 1 can be transmitted to the torsion resisting arm 3 through the first connecting piece 5, and the first rubber main spring 22 can be used for damping and reducing noise.

In some embodiments, as shown in fig. 1 to 5, the bracket 1 has a dowel extending into the first main rubber spring 22, the first connecting member 5 is connected to the dowel, and the first connecting end 31 is movably connected to the first connecting member 5. The torsion-resistant arm 3 bears the force in the X direction applied on the bracket arm 1 through the first connecting piece 5 and the force transmission rod, shares the acting force in the X direction applied on the suspension body 2, and greatly lightens the stress of the suspension body 2 through sharing the main acting force.

The first connecting piece 5 and the dowel bar can be in threaded connection, wherein a threaded hole 11 is formed in the center of the dowel bar; the first connecting piece 5 passes through the connecting hole of the first connecting end 31 and is screwed with the threaded hole 11. The first connecting piece 5 is in clearance fit with the connecting hole, the first connecting piece 5, the dowel bar and the connecting hole are in coaxial fit, the torsion resisting arm 3 is movably connected with the first connecting piece 5, the stress of the suspension body 2 in the X direction is shared, and the fracture risk of the suspension body 2 is reduced.

The first connecting piece and the dowel bar can be connected in a clamping, inserting, welding and other modes.

In some embodiments, the transfer lever is integrally vulcanized with the first main rubber spring 22 to achieve a secure connection.

In some embodiments, as shown in fig. 1, 6 to 9, a damping sleeve 36 and an inner ring 35 are disposed in the connecting hole of the first connecting end 31, the inner ring 35 is embedded in the damping sleeve 36, the first connecting member 5 is slidably connected to the inner ring 35, and the damping sleeve 36 is connected to the torsion skeleton 32. The first connection end 31 is slidably connected with the first connection member 5, that is, the torsion-resistant arm 3 can slide along the axial direction of the first connection member 5, the first connection member 5 is fixedly connected with the bracket 1, that is, the torsion-resistant arm 3 is slidably connected with the bracket 1, and the torsion-resistant arm 3 is slidably connected with the suspension body 2, so that the torsion-resistant arm 3 can share the stress of the suspension body 2 in the X direction through the sliding connection relationship, the fracture risk of the suspension body 2 is reduced, the influence of the stress in the Y direction and the stress in the Z direction on the torsion-resistant arm 3 can be reduced, and the fracture risk of the torsion-resistant arm 3 is avoided.

In some embodiments, referring to fig. 1, the outer end of the first connecting member 5 is provided with a separation preventing portion, and the separation preventing portion is spaced from the suspension body 2 by a distance greater than the axial width of the first connecting end 31, so as to realize the axial sliding of the torsion-resisting arm 3 along the first connecting member 5, and thus the movable connection of the torsion-resisting arm 3 and the suspension body. The run-off preventing portion can prevent the torsion arm 3 from slipping off the first connecting member 5.

The first connecting member 5 of the present embodiment is a rod-like structure or a shaft-like structure, for example, the first connecting member 5 is a bolt (which has a nut as an anti-separation portion) or a stud (on which a nut as an anti-separation portion can be disposed). It is to be understood that the axis of the first connection member coincides with the Y-direction.

When the bracket arm 1 moves along with the power assembly, the functions in all directions are as follows:

when the bracket arm 1 moves in the X direction along with the power assembly, the damping sleeve 36 embedded in the anti-torsion framework 32 at the first connecting end 31 of the anti-torsion framework 32 plays a role in damping, drives the second connecting end 33 to move in the X direction, and the inner core 342 of the second connecting end 33 contacts with the outer ring through the main spring rubber 341 to generate a limiting effect.

When the bracket arm 1 moves along with the power assembly in the Y direction, the bracket arm 1 drives the first connecting piece 5 to slide in the inner ring 35 because the inner diameter of the inner ring 35 is larger than the outer diameter of the first connecting piece 5 (in sliding fit); and because the existence (Y is also the axis direction of the first connecting piece 5) at the Y-direction damping sleeve 36 and the first rubber main spring 22, when the suspension framework collides with the first connecting piece 5 and the bracket 1, the noise is reduced.

When the bracket arm 1 moves in the Z direction along with the movement of the power assembly, the first connecting end 31 of the torsion-resistant arm 3 moves in the Z direction, the first connecting piece 5 and the inner ring 35 slightly deflect, and the inner core 342 and the outer ring of the second connecting end 33 slightly deflect, so that the risk of stress on the bracket arm 1 is reduced through adjustment.

In some embodiments, as shown in fig. 1 to 3, the suspension skeleton includes a suspension bridge 21 and a base 23 disposed in a bridge hole of the suspension bridge 21, wherein the base 23 is vulcanized to the suspension bridge 21 through a first main rubber spring 22, and two ends of the suspension bridge 21 are fastened to the vehicle body. In other words, the bracket arm 1 and the suspension body 2 are vulcanized and connected into a whole, so that the connection reliability can be improved; and the rubber part can play a role of buffering between the two.

As an alternative embodiment of the torsion-resisting arm 3, as shown in fig. 5 to 9, the second rubber main spring includes an inner core 342, a main spring rubber 341 and an outer ring (the outer ring is not shown) nested from inside to outside, and the outer ring is pressed into the connecting hole of the second connecting end 33 of the torsion-resisting skeleton 32; the anti-torque frame 32 is connected to the vehicle body by a second connection 4 that extends through the inner core 342. The inner core 342 is connected with the outer ring through the main spring rubber 341 in a vulcanization manner.

As another alternative embodiment of the torsion-resisting arm 3, as shown in fig. 5 to 9, the second rubber main spring includes an inner core 342 and a main spring rubber 341, the inner core 342 is embedded in the main spring rubber 341, and the inner core 342 is vulcanization-connected to the connection hole of the second connection end 33 of the torsion-resisting skeleton 32 through the main spring rubber 341; the anti-torque frame 32 is connected to the vehicle body by a second connection 4 that extends through the inner core 342.

The two structural modes of the second connecting end 33 of the torsion-resistant arm 3 can both achieve the anti-torsion and vibration-damping effects, and in the second mode, the outer ring is eliminated, so that the number of parts is reduced, the main spring rubber 341 is directly vulcanized with the anti-torsion framework 32 into a whole, the cost is reduced, and the anti-torsion effect can be achieved.

In some embodiments, as shown in fig. 1 to 5, the first connecting member 5 and the second connecting member 4 are both bolts, and the two bolts are arranged in parallel, that is, the second connecting member 4 is parallel to the Y direction.

For the purpose of sufficient explanation, some parts and structures in the text are explained as follows:

the material of the inner ring 35 is generally non-metal, and may be generally Thermoplastic engineering plastics, such as Polyurethane (PU), polyvinyl chloride (PVC), thermoplastic polyurethane (TPU-Thermoplastic polyurethanes), nylon (synthetic fibers containing polyurethane materials), resins (natural resins, synthetic resins), etc., which have certain strength and reduce noise (relative to metals) when in contact. In particular cases it may be a metal, for example an aluminium alloy, iron, steel, etc.

The structures of the first connecting end 31 and the second connecting end 33 of the torsion resisting arm 3 can be exchanged, and both have vibration damping and buffering structures, so that the effects of vibration damping, buffering and noise reduction are achieved.

The drawings illustrated herein are for the right suspension assembly and the symmetrical application to the left is for the left suspension assembly.

The damping sleeve 36, the main spring Rubber 34 and the main spring are all made of Rubber materials or materials containing Rubber materials and other auxiliary materials, such as Natural Rubber (NR, abbreviation of Natural Rubber), styrene Butadiene Rubber (SBR), butadiene Rubber (BR-cis-polybutadiene), butyl Rubber (HR), ethylene Propylene Rubber (abbreviation of EPDM-Ethylene Propylene Monomer), chloroprene Rubber (CR) and the like.

In the above embodiments, the description of each embodiment has its own emphasis, and reference may be made to the related description of other embodiments for parts that are not described or recited in any embodiment.

Based on the same inventive concept, the embodiment of the present application further provides a vehicle, which includes the torsion-resistant connection structure of the suspension body 2.

The utility model provides a vehicle, because anti-torque arm 3 has shared the X of suspension body 2 to partial atress, consequently alleviateed the cracked risk of suspension body 2 atress greatly, promoted the durability of suspension body 2.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A suspension assembly, comprising:

the bracket arm (1) is connected to the power assembly;

the suspension body (2) comprises a suspension framework connected to a vehicle body and a first rubber main spring (22) fixedly arranged on the suspension framework; the bracket arm (1) is connected with the first rubber main spring (22);

the torsion resisting arm (3), the suspension body (2) and the supporting arm (1) are sequentially connected; the anti-torsion arm (3) comprises an anti-torsion framework (32), the anti-torsion framework (32) is provided with a first connecting end (31) and a second connecting end (33), and the first connecting end (31) is movably connected with the first main rubber spring (22); the second connecting end (33) is provided with a second main rubber spring (34), and the second main rubber spring (34) is movably connected to the vehicle body;

one path of torque borne by the bracket arm (1) is transmitted to a vehicle body through the suspension framework through the first rubber main spring (22), and the other path of torque is transmitted to the vehicle body through the anti-torsion framework (32) and the second rubber main spring (34).

2. The suspension assembly of claim 1, further comprising: the torsion resisting arm (3) is movably connected with the bracket arm (1) through the first connecting piece (5).

3. The suspension assembly according to claim 2, wherein the bracket arm (1) has a force-transmitting rod which protrudes into the first main rubber spring (22), the first connection element (5) being connected to the force-transmitting rod, the first connection end (31) being movably connected to the first connection element (5).

4. The suspension assembly of claim 3 wherein the dowel is vulcanization bonded to the first main rubber spring (22).

5. The suspension assembly according to claim 2, wherein a shock-absorbing sleeve (36) and an inner ring (35) are arranged in the connecting hole of the first connecting end (31), the inner ring (35) is embedded in the shock-absorbing sleeve (36), the first connecting member (5) is connected with the inner ring (35) in a sliding manner, and the shock-absorbing sleeve (36) is connected with the torsion-resistant framework (32).

6. The suspension assembly according to claim 2, wherein the outer end of the first connection member (5) is provided with a run-off prevention portion, the run-off prevention portion being at a distance from the suspension body (2) which is greater than the axial width of the first connection end (31).

7. Suspension assembly according to claim 1, wherein the suspension skeleton comprises a suspension bridge (21) and a base (23) arranged in a bridge hole of the suspension bridge (21), wherein the base (23) is connected with the suspension bridge (21) by the first rubber main spring (22) in a vulcanization manner, and wherein both ends of the suspension bridge (21) are fastened to the vehicle body.

8. The suspension assembly of claim 1 wherein the second rubber main spring (34) includes an inner core (342), a main spring rubber (341) and an outer ring nested from the inside to the outside, the outer ring being press-fitted into the connecting hole of the second connecting end (33) of the torsion-resistant armature (32); the torsion resistant skeleton (32) is connected to the vehicle body by a second connection (4) extending through the inner core (342).

9. The suspension assembly according to claim 1, wherein the second rubber main spring (34) comprises a main spring rubber (341) and an inner core (342) embedded in the main spring rubber (341), the inner core (342) being vulcanization-connected to the connection hole of the second connection terminal (33) through the main spring rubber (341); the torsion resistant skeleton (32) is connected to the vehicle body by a second connection (4) extending through the inner core (342).

10. A vehicle comprising a suspension assembly according to any one of claims 1 to 9.

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