Rear lower control arm of automobile rear suspension multi-connecting-rod structure

Abstract

The utility model relates to the technical field of automobile suspensions, in particular to a rear lower control arm of an automobile rear suspension multi-connecting-rod structure, which comprises a chassis, a rear lower control arm body and wheels, a first supporting block is fixedly mounted on the chassis, a second supporting block is fixedly mounted on the chassis, and the wheels are fixedly mounted on the first supporting block and the second supporting block. A shock absorber is arranged between the chassis and the rear lower control arm body, a spring is arranged between the chassis and the rear lower control arm body, a bearing plate is fixedly installed at the lower end of the chassis, the rear lower control arm body and the bearing plate are rotatably installed, hubs are fixedly installed at the side ends of the wheels, and the hubs are fixedly installed on the chassis. A bearing seat is fixedly installed at the side end of the hub, and the rear lower control arm body and the bearing seat are installed in a rotating mode. The rear lower control arm of the multi-connecting-rod structure of the rear suspension of the automobile is designed to be separated from the shock absorber and the spring, so that when the whole automobile is stressed, the number of bearing points of the whole automobile is increased, the bearing capacity of the whole automobile is improved, and the practicability of the device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile suspension, in particular to a rear lower control arm of a multi-link structure of an automobile rear suspension. Background Art

[0002] As the core component of the automobile chassis, the rear suspension directly determines the vehicle's handling performance and ride comfort. As a type of independent suspension, the multi-link rear suspension has multiple links, each of which can control the force on the rear wheels in multiple aspects, giving the car better handling performance and ride comfort.

[0003] At present, the existing multi-link independent suspension structure (according to patent number: CN217944827U) discloses a multi-link independent suspension structure, including a clevis, a rear lateral control arm, a rear toe adjustment rod, and a rear oblique downward control arm. One side of the clevis is connected to the vehicle wheel, and the other side is connected to the vehicle's subframe through the rear lateral control arm, the rear toe adjustment rod, and the two ends of the rear oblique downward control arm. The rear lateral control arm is hinged to the clevis through one connection point and to the subframe through two connection points.

[0004] However, in the process of implementing the above technical solution, it was found that there is at least the following technical problem: the suspension structure is aimed at new energy vehicles. Since new energy vehicles are heavier, the rear lower control arm of the suspension structure is connected to the body with a traditional integrated shock absorber. Although it saves some installation space, it also reduces the carrying capacity of the whole vehicle and reduces the practicality of the device. Therefore, in order to solve the above problem, we propose a rear lower control arm of a multi-link structure for the rear suspension of an automobile. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a rear lower control arm of a multi-link structure for a rear suspension of an automobile, which solves the technical problem that the suspension structure is designed for new energy vehicles. Since new energy vehicles are heavier, the rear lower control arm of the suspension structure is connected to the vehicle body using a traditional integrated shock absorber. Although this saves some installation space, it also reduces the carrying capacity of the entire vehicle, thereby reducing the practicability of the device.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A rear lower control arm of a multi-link structure for a rear suspension of an automobile comprises a chassis, a rear lower control arm body and a wheel, wherein a first support block is fixedly mounted on the chassis, a second support block is fixedly mounted on the chassis, a shock absorber is arranged between the chassis and the rear lower control arm body, a spring is arranged between the chassis and the rear lower control arm body, a bearing plate is fixedly mounted on the lower end of the chassis, the rear lower control arm body is rotatably mounted on the bearing plate, a wheel hub is fixedly mounted on the side end of the wheel, a bearing seat is fixedly mounted on the side end of the wheel hub, and the rear lower control arm body is rotatably mounted on the bearing seat.

[0010] Preferably: a rotating block one is rotatably mounted on the support block one, a rotating block two is rotatably mounted on the support block two, the shock absorber is fixedly connected to the rotating block two, the spring is fixedly connected to the rotating block one, a support block three is fixedly mounted on the upper end of the rear lower control arm body, a rotating block three is provided on the rear lower control arm body, the rotating block three is fixedly connected to the spring, a support block four is fixedly mounted on the upper end of the rear lower control arm body, a rotating block four is provided on the support block four, and the rotating block four is fixedly connected to the shock absorber.

[0011] Preferably: the support block three is provided with a fastening pin one, the rotating block three is rotatably sleeved on the fastening pin one, the support block four is provided with a fastening pin two, and the rotating block four is rotatably sleeved on the fastening pin two.

[0012] (III) Beneficial effects

[0013] 1. Squeeze the shock absorber, the shock absorber buffers the force, and at the same time, the rear lower control arm body is subjected to force to drive the support block three, the support block three is subjected to force to drive the rotating block three, the rotating block three is subjected to force to compress the spring, the spring is deformed under the force, and the spring deformation buffers the impact force. The rear lower control arm of the multi-link structure of the rear suspension of the automobile is designed to be arranged separately from the shock absorber and the spring, so that when the whole vehicle is subjected to force, the bearing points of the whole vehicle are increased, and the bearing capacity is increased, thereby effectively improving the practicality of the device.

[0014] 2. Remove the fastening pin 1 and the fastening pin 2, then disengage the rotating block 3 from the limit of the supporting block 3, disengage the rotating block 4 from the limit of the supporting block 4, and then remove the fastening bolts of the rear lower control arm body, the load-bearing plate and the bearing seat, and then remove the rear lower control arm body. By adding the fastening pin 1 and the fastening pin 2 to the rear lower control arm of the rear suspension multi-link structure of the automobile, the rear lower control arm body can be quickly disassembled during the inspection and maintenance of the rear lower control arm body, thereby effectively improving the work efficiency of the inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0016] Figure 1 It is a structural diagram of the entire rear lower control arm of the multi-link structure of the rear suspension of the automobile of the utility model;

[0017] Figure 2 It is a structural diagram of the installation of the load-bearing plate of the utility model;

[0018] Figure 3 A structural diagram of the installation of the shock absorber of the utility model;

[0019] Figure 4 This is a structural diagram of the installation of a fastening pin of the utility model.

[0020] Legend: 1. Chassis; 11. Support block one; 12. Rotating block one; 13. Support block two; 14. Rotating block two; 15. Shock absorber; 16. Spring; 17. Load-bearing plate; 2. Rear lower control arm body; 21. Support block three; 22. Rotating block three; 23. Support block four; 24. Rotating block four; 25. Fastening pin one; 26. Fastening pin two; 3. Wheel; 31. Wheel hub; 32. Bearing seat. DETAILED DESCRIPTION

[0021] The embodiment of the present application provides a rear lower control arm of a multi-link structure for the rear suspension of an automobile, which effectively solves the technical problem that the suspension structure is designed for new energy vehicles. Since new energy vehicles are heavier, the rear lower control arm of the suspension structure is connected to the vehicle body using a traditional integrated shock absorber. Although this saves some installation space, it also reduces the carrying capacity of the entire vehicle and reduces the practicality of the device.

[0022] Example

[0023] according to Figure 1 , Figure 2 , Figure 3 ,and Figure 4 As shown, the technical solution in the embodiment of the present application effectively solves the technical problem that the suspension structure is for new energy vehicles. Since new energy vehicles are heavy, the rear lower control arm of the suspension structure is connected to the body using a traditional integrated shock absorber. Although it saves some installation space, it also reduces the carrying capacity of the whole vehicle and reduces the practicality of the device. The overall idea is as follows:

[0024] In view of the problems existing in the prior art, the utility model provides a rear lower control arm of a multi-link structure of a rear suspension of an automobile, comprising a chassis 1, a rear lower control arm body 2 and a wheel 3, a support block 11 is fixedly installed on the chassis 1, a support block 2 13 is fixedly installed on the chassis 1, a shock absorber 15 is arranged between the chassis 1 and the rear lower control arm body 2, a spring 16 is arranged between the chassis 1 and the rear lower control arm body 2, a bearing plate 17 is fixedly installed on the lower end of the chassis 1, wherein the rear lower control arm body 2 and the bearing plate 17 are rotatably installed, a wheel hub 31 is fixedly installed on the side end of the wheel 3, a bearing seat 32 is fixedly installed on the side end of the wheel hub 31, wherein the rear lower control arm body 2 and the bearing seat 32 are rotatably installed.

[0025] A rotating block 12 is rotatably mounted on the support block 11, and a rotating block 2 14 is rotatably mounted on the support block 2 13, wherein the shock absorber 15 is fixedly connected to the rotating block 2 14, and the spring 16 is fixedly connected to the rotating block 12. A support block 3 21 is fixedly mounted on the upper end of the rear lower control arm body 2, and a rotating block 3 22 is arranged on the rear lower control arm body 2, wherein the rotating block 3 22 is fixedly connected to the spring 16. A support block 4 23 is fixedly mounted on the upper end of the rear lower control arm body 2, and a rotating block 4 24 is arranged on the support block 4 23, wherein the rotating block 4 24 is fixedly connected to the shock absorber 15. A fastening pin 1 25 is arranged on the support block 3 21, wherein the rotating block 3 22 is rotatably sleeved on the fastening pin 1 25, and a fastening pin 26 is arranged on the support block 4 23, wherein the rotating block 4 24 is rotatably sleeved on the fastening pin 26.

[0026] Working principle:

[0027] In the first step, when the rear lower control arm of the multi-link structure of the rear suspension of an automobile is in use, the wheel 3 is forced to drive the wheel hub 31, the wheel hub 31 is forced to drive the bearing seat 32, the bearing seat 32 is forced to drive the rear lower control arm body 2, the rear lower control arm body 2 is forced to drive the support block four 23, the support block four 23 is forced to drive the rotating block four 24, the rotating block four 24 is forced to squeeze the shock absorber 15, and the shock absorber 15 buffers the force, and at the same time, the rear lower control arm body 2 is forced to drive the support block three 21, the support block three 21 is forced to drive the rotating block three 22, the rotating block three 22 is forced to pressurize the spring 16, the spring 16 is forced to deform, and the deformation of the spring 16 buffers the impact force, and the rear lower control arm of the multi-link structure of the rear suspension of an automobile is designed to be arranged separately from the shock absorber 15 and the spring 16, so that when the whole vehicle is subjected to force, the bearing points of the whole vehicle are increased, and the bearing capacity is increased, thereby effectively improving the practicality of the device.

[0028] The second step is, when the rear lower control arm of the multi-link structure of the rear suspension of the automobile is in use, the rotating block three 22 is sleeved on the fastening pin one 25, and the rotating block four 24 is sleeved on the fastening pin two 26. In the process of disassembly, the fastening pin one 25 and the fastening pin two 26 are removed, and then the rotating block three 22 is disengaged from the limit of the support block three 21, and the rotating block four 24 is disengaged from the limit of the support block four 23, and then the fastening bolts of the rear lower control arm body 2 and the bearing plate 17 and the bearing seat 32 are removed, and then the rear lower control arm body 2 is removed. By adding the fastening pin one 25 and the fastening pin two 26 to the rear lower control arm of the multi-link structure of the rear suspension of the automobile, the rear lower control arm body 2 can be quickly disassembled during the inspection and maintenance of the rear lower control arm body 2, thereby effectively improving the work efficiency of the inspection and maintenance.

[0029] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A rear lower control arm of a multi-link structure for a rear suspension of an automobile, comprising a chassis (1), a rear lower control arm body (2) and a wheel (3), characterized in that: A support block 1 (11) is fixedly mounted on the chassis (1), a support block 2 (13) is fixedly mounted on the chassis (1), a shock absorber (15) is arranged between the chassis (1) and the rear lower control arm body (2), a spring (16) is arranged between the chassis (1) and the rear lower control arm body (2), and a bearing plate (17) is fixedly mounted on the lower end of the chassis (1); Wherein, the rear lower control arm body (2) and the bearing plate (17) are rotatably mounted; A wheel hub (31) is fixedly mounted on the side end of the wheel (3), and a bearing seat (32) is fixedly mounted on the side end of the wheel hub (31); Wherein, the rear lower control arm body (2) and the bearing seat (32) are rotatably mounted.

2. The rear lower control arm of a multi-link structure of a rear suspension of an automobile according to claim 1, characterized in that: The support block 1 (11) is rotatably mounted with a rotating block 1 (12), and the support block 2 (13) is rotatably mounted with a rotating block 2 (14); The shock absorber (15) is fixedly connected to the second rotating block (14), and the spring (16) is fixedly connected to the first rotating block (12).

3. The rear lower control arm of the multi-link structure of the rear suspension of an automobile according to claim 2, characterized in that: A supporting block three (21) is fixedly mounted on the upper end of the rear lower control arm body (2), and a rotating block three (22) is arranged on the rear lower control arm body (2); Wherein, the rotating block three (22) is fixedly connected to the spring (16).

4. The rear lower control arm of the multi-link structure of the rear suspension of an automobile according to claim 3, characterized in that: A support block four (23) is fixedly mounted on the upper end of the rear lower control arm body (2), and a rotating block four (24) is arranged on the support block four (23); Wherein, the rotating block four (24) is fixedly connected to the shock absorber (15).

5. The rear lower control arm of the multi-link structure of the rear suspension of an automobile according to claim 4, characterized in that: The support block three (21) is provided with a fastening pin one (25); Wherein, the rotating block three (22) is rotatably sleeved on the fastening pin one (25).

6. The rear lower control arm of the multi-link structure of the rear suspension of an automobile according to claim 5, characterized in that: The support block 4 (23) is provided with a fastening pin 2 (26); Wherein, the rotating block four (24) is rotatably sleeved on the fastening pin two (26).

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