CN218750162U

CN218750162U - Swing arm, vehicle suspension and vehicle

Info

Publication number: CN218750162U
Application number: CN202222795073.7U
Authority: CN
Inventors: 王昆
Original assignee: Beijing Chehejia Automobile Technology Co Ltd
Current assignee: Beijing Chehejia Automobile Technology Co Ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-03-28
Anticipated expiration: 2032-10-21

Abstract

The utility model provides a swing arm and vehicle suspension and vehicle belongs to vehicle suspension technical field, and wherein, the one end and the sub vehicle frame of swing arm are connected, and the other end is connected with the knuckle, the knuckle is connected with the lower extreme of shock absorber, the swing arm orientation the one end of knuckle is equipped with dodges the structure, the lower extreme of shock absorber passes after dodging the structure with the knuckle is connected. The utility model provides a swing arm can make the shock absorber continue to be connected to the knuckle after stretching into downwards along its normal position axial direction to can make the shock absorber be connected to the relative downside of knuckle, effectively avoid the shock absorber to take place to interfere with other parts of automobile body.

Description

Swing arm, vehicle suspension and vehicle

Technical Field

The application relates to the technical field of automotive suspensions, in particular to a swing arm, an automotive suspension and an automotive vehicle.

Background

The suspension is a general term for all force transmission connecting devices between a frame and an axle or a wheel of an automobile, and has the functions of transmitting force and torque acting between the wheel and the frame, buffering impact force transmitted to the frame or an automobile body from an uneven road surface and attenuating vibration caused by the impact force so as to ensure that the automobile can run smoothly.

In order to ensure good stability performance of a rear suspension of a vehicle, a five-link suspension structure is generally adopted, the five-link suspension structure generally comprises an upper swing arm, a lower swing arm, a toe-in control arm, a shock absorber assembly and other parts, in a general vehicle, the upper end of the shock absorber is connected to a vehicle body, the lower end of the shock absorber is connected to a steering knuckle, in order to meet the performance requirement of the whole suspension of the vehicle, the shock absorber needs to keep a certain length under the limitation of standard requirements, stress transmission and the like, the upper end of the connected shock absorber is easy to intrude into the inner space of a passenger compartment of the vehicle body, a cushion in the passenger compartment is lifted, the passenger compartment riding space is reduced, and the passenger riding experience is influenced.

In order to solve the problems, the existing mode is that the shock absorber is staggered relative to the lower swing arm and then extends downwards, but is influenced by the size of the shaft diameter of the shock absorber, and when the shock absorber is staggered relative to the lower swing arm and arranged close to the front of a vehicle body, the shock absorber is easy to interfere with the side wall of a rim; when the shock absorber is arranged close to the rear of the vehicle body in a staggered mode relative to the lower swing arm, the gap between the lower swing arm and the steering knuckle is small, the shock absorber cannot extend into the gap to continue downwards, the two arrangement modes can increase the assembly length of the vehicle body in the front-rear direction and increase unnecessary vehicle body assembly space in order to meet the requirement that the shock absorber is arranged close to the lower side.

Therefore, there is a need to solve the problem that the lower end connection point of the vehicle shock absorber easily interferes with the vehicle body component when connected to the knuckle.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present application aims to provide a swing arm, a vehicle suspension and a vehicle, so as to solve the above problems.

Based on above-mentioned purpose, this application provides a swing arm, its one end is suitable for and is connected with sub vehicle frame, and the other end is suitable for and is connected with the knuckle, the knuckle is suitable for to be connected with the lower extreme of shock absorber, the swing arm orientation the one end of knuckle is equipped with dodges the structure, the lower extreme of shock absorber passes dodge behind the structure with the knuckle is connected.

Further, the avoiding structure comprises a transition connecting part used for enclosing to form a hollow avoiding area, and a mounting part suitable for being hinged with the steering knuckle is arranged on the transition connecting part.

Further, the hollow avoidance area of the transition connecting part surrounding structure is in a closed ring shape.

Further, the swing arm includes a swing arm body, and the mount is located on an axis of the swing arm body.

Further, the hollow avoidance area of the transition connecting part surrounding structure is in an open ring shape.

Furthermore, the transition connecting part is provided with two free ends corresponding to the opening, and the mounting part is arranged on each free end.

Further, the mounting member is hinged to the knuckle by a bushing.

In addition, this application still provides vehicle suspension, including as above the swing arm, still include shock absorber and knuckle, the upper end and the automobile body of shock absorber are connected, the lower extreme of shock absorber with the knuckle is connected, and the lower extreme of shock absorber and the tie point of knuckle are located the wheel center below.

Further, still include the guiding arm, the one end and the knuckle of guiding arm are connected, the other end with sub vehicle frame connects, the guiding arm is located the wheel center and is close to the one side at the rear of a vehicle.

In addition, the application also provides a vehicle comprising the vehicle suspension.

The application provides a swing arm and vehicle suspension and vehicle, wherein, set up through the swing arm towards the one end of knuckle and dodge the structure, the lower extreme of shock absorber can pass and dodge the structure after be connected with the knuckle, the structure of dodging that sets up can let the lower extreme of shock absorber continue downwardly extending along its axial direction, the lower extreme of comparing the shock absorber misplaces downwards at the relative swing arm of the fore-and-aft direction of automobile body, can avoid the shock absorber to take place to interfere with the rim of automobile body or other assembly parts, it is reasonable to guarantee that whole car assembly arranges.

Drawings

In order to more clearly illustrate the technical solutions in the present application or the related art, the drawings needed to be used in the description of the embodiments or the related art will be briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a perspective view of a swing arm in an embodiment of the present application;

FIG. 2 is a schematic view of the swing arm and damper assembly of the present application;

FIG. 3 is a schematic view of the engagement of the damper and the knuckle according to the embodiment of the present application.

Reference numerals

1. A knuckle; 2. a shock absorber; 3. a passenger compartment; 4. a wheel center; 5. a hollow avoidance region; 6. a transition connection; 7. a mounting member; 8. a connection point; 9. an auxiliary frame; 10. a swing arm main body; and a guide arm 11.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

Embodiments of the present application are described in detail below with reference to the accompanying drawings.

The present embodiment provides a swing arm, which can be applied to a multi-link suspension mechanism of a vehicle chassis, and in particular, the present embodiment is described as being applied to a five-link suspension.

As shown in fig. 1 and fig. 2, one end of the swing arm according to this embodiment is adapted to be connected to a subframe 9, the other end of the swing arm is adapted to be connected to a knuckle 1, the knuckle 1 is adapted to be connected to a lower end of a shock absorber 2, an avoidance structure is disposed at an end of the swing arm facing the knuckle 1, and a lower end of the shock absorber 2 passes through the avoidance structure and is connected to the knuckle 1.

In this embodiment, the structure of dodging that the swing arm set up can let the lower extreme of shock absorber continue downwardly extending along its axial direction, compares the lower extreme of shock absorber and misplaces the downstream in the front and back direction relative swing arm of automobile body, can avoid shock absorber and the rim of automobile body or other assembled parts to take place to interfere, guarantees whole car assembly and arranges.

It should be noted that, in the present embodiment, the subframe 9, the knuckle 1 and other relevant vehicle chassis components may adopt existing mature vehicle suspension technology; the swing arm can be made of carbon steel or alloy steel, which is not limited in this embodiment.

In some embodiments, the avoidance structure comprises a transition portion 6 enclosing a hollow avoidance region 5, the transition portion 6 being provided with a mounting portion 7 adapted to be articulated with the steering knuckle 1, where the hollow avoidance region 5 refers to a region through which the shock absorber 2 passes on the swing arm.

In some embodiments, the transition connection portion 6 forms a hollow avoidance region 5 in a closed ring shape, and the swing arm includes a swing arm main body 10, and the transition connection portion 6 is fixedly connected with the swing arm main body 10 by welding to ensure good structural strength. As an alternative embodiment, the swing arm main body 10 and the transition connecting portion 6 may be integrally formed by stamping or casting. It should be noted that the swing arm main body described in this embodiment refers to the swing arm portion arranged in the horizontal direction shown in fig. 1, and the broken line in fig. 1 is the axis of the swing arm main body.

Further, the mounting member 7 in this embodiment is located on the axis of the swing arm, specifically, the mounting member 7 is a mounting plate horizontally extending from the end of the transition connecting portion 6, and a shaft sleeve is fixed on the mounting plate and is hinged to the knuckle 1 through the shaft sleeve fixed on the mounting plate. As an alternative, the mounting plate on the mounting 7 can also be connected to the steering knuckle 1 by means of a ball joint.

In the above embodiment, the mounting member 7 is fixed to the end of the intermediate connection portion 6 by welding, or may be formed by bending a portion of the intermediate connection portion 6 directly.

In some embodiments, the mounting member 7 may be disposed offset from the axis of the swing arm according to the actual assembly space and the size of the assembly component, as long as the mounting member 7 can maintain a stable hinged connection state with the knuckle 1.

As shown in fig. 1, in some embodiments, the hollow avoiding region 5 enclosed by the transition connection portion 6 is an open ring, the transition connection portion 6 has two free ends corresponding to the open position, each free end is provided with the above-mentioned mounting member 7, specifically, the transition connection portion 6 is composed of two connecting plates tending to a semi-circular arc shape, one end of each connecting plate is connected with the swing arm main body 10, and the concave surfaces of each connecting plate are oppositely arranged to form the hollow avoiding region 5. In the above embodiment, the two connecting plates are symmetrically arranged relative to the axis of the swing arm, so that the swing arm is convenient to process, and the swing arm is beneficial to being uniformly stressed.

In some embodiments, the mounting member 7 projects at the end opposite the free end and is articulated to the steering knuckle 1 by means of a bushing fixed to the mounting member 7. As an alternative embodiment, the connection between the mounting part 7 and the steering knuckle 1 can also be by means of a ball joint.

Specifically, two free ends of the transition connecting portion 6 are symmetrically arranged relative to the axis of the swing arm, the plane where the mounting part 7 on each end is located is parallel to the axis of the swing arm, the mounting parts 7 on each end are respectively and fixedly provided with a shaft sleeve, and the steering knuckle is coaxially hinged with the two free ends through the shaft sleeves.

Further, the above-mentioned mounting member 7 may be fixed to the end portion of each free end by welding, and as an alternative, the mounting member 7 may be formed by bending the free end of the transition connection portion.

In some embodiments, instead of forming a ring shape, the hollow escape area 5 may have other shapes, such as a rectangle or a polygon, such as a pentagon, as long as the shock absorber 2 can pass through it; and it should be noted that, because the shock absorber plays a role in damping vibration during the running of the automobile, at least a certain distance should be left between the hollow avoidance region and the shock absorber passing through the hollow avoidance region to avoid the shock absorber interfering with the hollow avoidance region during the running of the automobile.

The application also provides a vehicle suspension, as shown in fig. 3, comprising the swing arm as described above, further comprising a shock absorber 2 and a knuckle 1, wherein the upper end of the shock absorber 2 is connected with a vehicle body, the lower end of the shock absorber 2 is connected with the knuckle 1, and the lower end of the shock absorber 2 and a connection point 8 of the knuckle 1 are located below the wheel center 4.

Here, the lower end of the damper 2 is connected to the knuckle 1 after passing through the swing arm, and interference of the damper 2 with relevant parts such as a rim or the knuckle 1 itself in the vehicle body front-rear direction can be further avoided, compared with the case where the damper 2 is connected to the knuckle 1 after being displaced in the vehicle body front-rear direction with respect to the swing arm;

in addition, because the knuckle 1 is provided with a plurality of connecting points for connecting with components, when the lower end of the shock absorber 2 passes through the swing arm and then continuously extends downwards, the connecting point of the shock absorber 2 and the knuckle 1 can relatively move downwards, when the height of the shock absorber 2 is fixed, the connecting point of the upper end of the shock absorber 2 also moves downwards, and the connecting point of the vehicle body connected with the connecting point of the upper end of the shock absorber also correspondingly moves downwards, so that the upper end of the shock absorber 2 is prevented from invading the space of the vehicle body, and the passenger compartment can be ensured to take.

Here, the lower extreme of shock absorber 2 passes the dodge structure of swing arm and is connected to knuckle 1 on the back, compares in prior art with the lower extreme of shock absorber 2 direct assembly to the knuckle lean on the upside relatively, can make the Y of passenger cabin increase more than 150mm to the space, has effectively increased passenger cabin inner space, promotes passenger and takes experience.

In some embodiments, the vehicle suspension further includes a guide arm 11, one end of the guide arm is hinged to the knuckle 1, the other end of the guide arm is hinged to the subframe 9, and the guide arm 11 is located on the side of the wheel center 4 near the rear of the vehicle, that is, relatively rearward of the wheel center 4. Here, because the one side that is close to the locomotive of wheel center 4 is more close to the automobile body floor, set up leading arm 11 in the one side that is close to the rear of a vehicle of wheel center 4, can be bigger utilization vacant space below the seat to avoid leading arm 11 to encroach on floor space, it shows through the test that the leading arm is located the leading arm 4 and is close to the rear of a vehicle one side and compares leading arm 11 and to preposition can reduce 20mm-30 mm's high influence of invasion, is favorable to further promoting the pleasing to the eye effect of automobile body inner space.

In addition, the present application also provides a vehicle comprising a vehicle suspension as described above.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

Claims

1. A swing arm, one end of which is adapted to be connected to a sub-frame (9) and the other end of which is adapted to be connected to a knuckle (1), said knuckle (1) being adapted to be connected to the lower end of a shock absorber (2), characterized in that:

an avoiding structure is arranged at one end, facing the steering knuckle (1), of the swing arm, and the lower end of the shock absorber (2) penetrates through the avoiding structure and then is connected with the steering knuckle (1).

2. The swing arm according to claim 1, characterized in that the avoiding structure comprises a transition connection (6) for enclosing a hollow avoiding area (5), the transition connection (6) being provided with a mounting (7) adapted to be articulated with the knuckle (1).

3. The swing arm according to claim 2, characterized in that the hollow escape area (5) enclosed by the transition connection (6) is closed loop-shaped.

4. The swing arm according to claim 3, characterized in that it comprises a swing arm body (10), said mount (7) being located on the axis of said swing arm body (10).

5. The swing arm according to claim 2, characterized in that the hollow escape area (5) enclosed by the transition connection (6) is in the shape of an open ring.

6. The swing arm according to claim 5, characterized in that the transition joint (6) has two free ends corresponding to the opening, and the mounting member (7) is arranged on each free end.

7. The swing arm according to any one of claims 2-6, wherein the mount (7) is articulated to the knuckle (1) by means of a bushing.

8. Vehicle suspension, comprising a swing arm according to any of claims 1-7, further comprising a shock absorber (2) and a knuckle (1), the upper end of the shock absorber (2) being connected to the vehicle body, the lower end of the shock absorber (2) being connected to the knuckle (1), and the connection point (8) of the lower end of the shock absorber (2) and the knuckle (1) being located below the wheel center (4).

9. The vehicle suspension of claim 8, further comprising a pilot arm connected at one end to a knuckle and at the other end to the subframe, the pilot arm being located on a side of the wheel center near the rear of the vehicle.

10. A vehicle comprising a vehicle suspension according to claim 9.