CN209938242U - Automobile suspension rear control arm - Google Patents
Automobile suspension rear control arm Download PDFInfo
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- CN209938242U CN209938242U CN201920614455.0U CN201920614455U CN209938242U CN 209938242 U CN209938242 U CN 209938242U CN 201920614455 U CN201920614455 U CN 201920614455U CN 209938242 U CN209938242 U CN 209938242U
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- control arm
- flat plate
- connecting rod
- rear control
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Abstract
The utility model provides a rear control arm of an automobile suspension, which comprises a control arm body connected between a steering knuckle and an auxiliary frame of a suspension assembly, wherein the cross section of the control arm body is in an inverted U shape and comprises a main board and two side plates positioned at two opposite sides of the main board, the main board comprises a flat plate arranged close to the steering knuckle and a folded plate which is connected with the flat plate and is provided with a bend towards one side of the auxiliary frame; the other side of the flat plate is provided with a spring bearing part relative to the side provided with the side plate, and the spring bearing part supports a spring in the suspension assembly; the reinforcing plate is connected between the two side plates, and the reinforcing plate and the flat plate are arranged at intervals. Control arm behind automotive suspension, spring bearing portion place plane is higher, can reduce the spring height of suspension assembly to prevent spring unstability under the vehicle special case for the emergency braking condition, and weight, cost are lower, the assembly is simple and convenient, and can guarantee the performance and the intensity requirement of suspension assembly.
Description
Technical Field
The utility model relates to a vehicle suspension technical field, in particular to control arm behind automotive suspension.
Background
With the development of scientific technology and the continuous improvement of the living standard of people, people no longer only pay attention to the appearance and price of a vehicle, and often more consideration is given to the control stability, driving comfort and driving safety of the whole vehicle.
The control arm behind current suspension, knuckle is connected to one end, and the sub vehicle frame is connected to the other end. The rear control arm of the suspension mainly has the following two structures:
one structure is that the control arm main body is welded with the reinforcing plate in a lap joint mode and is in threaded connection with the connecting rod support. The suspension rear control arm of this kind of structure, spring mounting face is on the low side than whole car barycenter, and in the vehicle motion process, the easy unstability of spring, and back control arm bottom surface structure is complicated, and the shaping difficulty, two reinforcing plates, sleeve pipe and main part overlap joint welding simultaneously, and welding processes is many, moreover, connecting rod support and back control arm spiro union increase bolt, nut, and weight and cost all can increase.
The other structure is a lap welding mode of the control arm main body, the middle plate and the closing plate. The suspension rear control arm with the structure does not need to be provided with a connecting rod support, can save bolts and nuts used for support installation, saves partial cost, but is reinforced by the middle plate, increases manufacturing procedures such as stamping and welding, obviously improves part cost, increases more weight, needs to be matched with an integral sealing plate, is heavy in assembly weight, and is higher in processing and material cost.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention is directed to a rear control arm for a suspension of an automobile, so as to overcome the disadvantage that the spring of the suspension assembly is easily unstable when the rear control arm is in an applied state.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
an automotive suspension rear control arm comprising:
the control arm body is connected between a steering knuckle and an auxiliary frame of the suspension assembly, the cross section of the control arm body is in an inverted U shape and comprises a main plate and two side plates positioned on two opposite sides of the main plate, and the main plate comprises a flat plate arranged close to the steering knuckle and a folded plate which is connected with the flat plate and is provided with a bend facing one side of the auxiliary frame; a spring bearing part is arranged on the other surface of the flat plate opposite to the surface provided with the side plate, and the spring bearing part forms a support for a spring in the suspension assembly;
and the reinforcing plate is connected between the two side plates, and the reinforcing plate and the flat plate are arranged at intervals.
Furthermore, the knuckle connecting part of the control arm body is a through hole which is correspondingly arranged on the two side plates.
Furthermore, be close to in sub vehicle frame, in two correspond on the curb plate and seted up the connecting hole, the sub vehicle frame connecting portion of control arm body for the pressure equipment link firmly in bush in the connecting hole.
Furthermore, the other side of each side plate is provided with a flange relative to the side connected with the flat plate, and the reinforcing plate is fixedly connected between the two flanges.
Furthermore, at least one of the main plate, the side plate and the reinforcing plate is provided with a lightening hole.
Furthermore, gaps are arranged on one side of the reinforcing plate, which faces the steering knuckle, and one side of the reinforcing plate, which faces the auxiliary frame.
Furthermore, a connecting rod support is arranged on one side of the folded plate, which faces the side plate, a connecting rod through hole is formed in the folded plate, and a connecting rod of the suspension assembly penetrates through the connecting rod through hole and is fixedly connected with the connecting rod support.
Further, the connecting rod support comprises a connecting plate which is connected between the two side plates and is provided with a connecting rod mounting hole, and a bent plate which is integrally formed with the connecting plate and is connected with the control arm body in an abutting mode.
Further, the cross section of the bent plate follows the control arm body.
Furthermore, a reinforcing rib is connected between the folded plate and the bent plate.
Compared with the prior art, the utility model discloses following advantage has:
control arm behind automotive suspension, spring bearing portion place plane is higher, can reduce the spring height of suspension assembly to prevent spring unstability under the vehicle special case for the emergency braking condition, and weight, cost are lower, the assembly is simple and convenient, and can guarantee the performance and the intensity requirement of suspension assembly.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic structural diagram of a rear control arm of an automotive suspension according to an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;
FIG. 3 is an enlarged view of portion A of FIG. 2;
description of reference numerals:
1-a control arm body, 2-a reinforcing plate, 3-a lightening hole, 4-an auxiliary frame connecting part, 5-a flanging, 6-a connecting rod bracket, a-a welding bead I and a b-a welding bead II;
101-main plate, 1011-plate, 1012-flap, 102-side plate, 1021-knuckle connection, 103-spring-loaded portion;
201-a gap;
601-connecting plate, 6011-connecting rod mounting hole, 602-bent plate and 603-reinforcing rib.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that the terms "upper" and "lower" are based on the position or position relationship shown in fig. 1, that is, the placing position under the application of the present invention is "upper" on the side facing upward and away from the ground, and "lower" on the side facing downward and away from the ground.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The embodiment relates to a control arm behind automotive suspension, mainly includes control arm body and reinforcing plate, wherein: the control arm body is connected between a steering knuckle and an auxiliary frame of the suspension assembly, the cross section of the control arm body is in an inverted U shape and comprises a main plate and two side plates positioned on two opposite sides of the main plate, and the main plate comprises a flat plate arranged close to the steering knuckle and a folded plate which is connected with the flat plate and is provided with a bend facing one side of the auxiliary frame; the other side of the flat plate is provided with a spring bearing part relative to the side provided with the side plate, and the spring bearing part supports a spring in the suspension assembly; the reinforcing plate is connected between the two side plates, and the reinforcing plate and the flat plate are arranged at intervals.
Based on the above overall structural description, an exemplary structure of the rear control arm of the automotive suspension of the present embodiment is shown in fig. 1 and 2, and mainly includes a control arm body 1 and a reinforcing plate 2 connected to the control arm body 1.
The structure of the control arm body 1 is described below, the control body is connected between a knuckle and a sub-frame of a suspension assembly not shown in the drawings, and is integrally formed by a stamping process, and the cross section of the control arm body 1 is in an inverted "U" shape, and includes a main plate 101 and two side plates 102 located at two opposite sides of the main plate 101.
For the convenience of connection with the knuckle, the knuckle connection part 1021 of the control arm body 1 is a through hole disposed correspondingly on the two side plates 102. In order to facilitate connection with the auxiliary frame, connecting holes are correspondingly formed in the two side plates 102 close to the auxiliary frame, and the auxiliary frame connecting portion 4 of the control arm body 1 is a bushing which is fixedly connected in the connecting holes in a press-fitting mode and can be of an existing structure. In this embodiment, the axis of the bushing is parallel to the flat plate 1011, so that the operation convenience in the processes of stamping, welding and detection can be improved, and the consistency of design, manufacture and external inspection can be ensured.
The main plate 101 mainly includes a flat plate 1011 disposed near the knuckle, and a folded plate 1012 connected to the flat plate 1011 and having a bend toward one side of the subframe, and the other side of the flat plate 1011 is further provided with a spring bearing portion 103, which is integrally formed by a stamping process, and the spring bearing portion 103 is formed to support a spring in the suspension assembly. Specifically, the width of the flat plate 1011 near the flap 1012 is large, and the width of the flat plate 1011 gradually decreases from the portion to the knuckle side; the width dimension of the plate 1011 becomes smaller from the wider portion of the plate 1011 to the flap 1012, and the width dimension of the flap 1012 becomes smaller from the connecting portion with the plate 1011 to the sub-frame.
The structure of the spring bearing portion 103 can refer to the existing structure, in this embodiment, a circular hole is formed on the flat plate 1011, and the circumferential edge of the circular hole protrudes upwards, i.e. outward, to the side where the spring is arranged to form the spring bearing portion 103, so that the spring can be sleeved on the spring bearing portion 103.
Generally speaking, the positions of the knuckle connecting portion 1021 and the subframe connecting portion 4 of the control arm body 1 are relatively fixed, so the existing main plate 101 is generally a one-piece flat plate, and in this embodiment, firstly, the main plate 101 is disposed on the upper side of the side plate 102, which is referred to as the side on which the spring bearing portion 103 is disposed, as the upper side, based on the application state of the control arm body 1, and secondly, the main plate 101 adopts a bending connection manner of the flat plate 1011 and the folded plate 1012, which is beneficial to the disposition of the spring bearing portion 103, and can be integrally formed by a stamping process, thereby saving the processing time, the overall center of mass of the control arm body 1 is higher by the combination of the disposed position improvement of the main plate 101 and the structural improvement of the main plate 101, and the structure can reduce the spring height of.
In order to ensure the structural strength of the control arm body 1, a reinforcing plate 2 is further connected between the two side plates 102, which is shown in fig. 1 and 2, and the reinforcing plate 2 is arranged at a distance from the flat plate 1011. Specifically, the appearance of the reinforcing plate 2 is approximately similar to that of the flat plate 1011, and compared with the side connected with the flat plate 1011, the flanges 5 are arranged on the other side of each side plate 102, the reinforcing plate 2 in the embodiment is fixedly connected between the two flanges 5, and the two flanges 5 are specifically lapped, so that the welding positioning is more accurate. In this structure, the flange 5 can further improve the strength and the deformation resistance of the control arm body 1, and also facilitate the welding of the reinforcing plate 2 and the control arm body 1, and the position of the weld bead a can be as shown in fig. 2. The control arm body of this structure can save the medium plate and strengthen, can reduce welding process for prior art's structure, still can reduce weight and cost.
In order to ensure the structural strength while reducing the weight, a lightening hole 3 is formed in the middle of the reinforcing plate 2, the width of the lightening hole 3 is reduced from small to large from one side close to a steering knuckle to an auxiliary frame, the width of the lightening hole is similar to the shape of the reinforcing plate 2, and a flange 5 is formed on the edge of the lightening hole 3, so that the structural strength of the reinforcing plate 2 is ensured while reducing the weight, and the structural strength of the control arm body 1 is ensured.
In addition, one side towards the knuckle of reinforcing plate 2 and one side towards the sub vehicle frame all are provided with opening 201, and the setting of opening 201 also can guarantee reinforcing plate 2 self structural strength when losing weight. Specifically, the notch 201 facing the knuckle is in the shape of a "C" with the opening facing the knuckle, and the notch 201 facing the subframe is in the shape of a "C" with the opening facing the subframe, which can reduce local stress and further reduce weight.
In addition, in order to secure structural strength while reducing weight, lightening holes 3 are also provided in the main plate 101 and the side plates 102. Specifically, a lightening hole 3 is formed in each side plate 102 at a position close to the subframe, and the lightening hole 3 is a strip-shaped hole extending in the longitudinal direction of the side plate 102; a lightening hole 3 is also arranged at the position of the folded plate 1012 close to the auxiliary frame, the shape of the lightening hole 3 follows the shape of the folded plate 1012, namely, the width dimension of the lightening hole 3 is reduced from one end connected with the flat plate 1011 to one side close to the auxiliary frame; a lightening hole 3 is also arranged on the flat plate 1011 near the knuckle, and the lightening hole 3 is a strip-shaped hole extending along the length direction of the flat plate 1011.
Referring to fig. 3, a link bracket 6 is disposed on a side of the flap 1012 facing the side panel 102, the link bracket 6 is welded to the flap 1012, and the shape of the weld bead 2 can be as shown in fig. 3, thereby avoiding the increase of weight due to the bolt connection and reducing the cost. A connecting rod through hole is arranged on the folded plate 1012, and a connecting rod of the suspension assembly penetrates through the connecting rod through hole to be fixedly connected with the connecting rod bracket 6.
Specifically, the link bracket 6 includes a connecting plate 601 connected between the two side plates 102 and having a link mounting hole 6011 formed therein, and further includes a bent plate 602 integrally formed with the connecting plate 601 and connected to the control arm body 1 in abutment therewith. In this embodiment, the cross section of the bending plate 602 follows the shape of the control arm body 1, that is, the bending plate 602 abuts against both the folding plate 1012 and the two side plates 102, so that the structural strength of the link bracket 6 can be better improved, and the structural strength of the control arm body 1 can be improved.
In addition, in order to improve the structural strength of the link bracket 6, a reinforcing rib 603 is connected between the folded plate 1012 and the bent plate 602, and as shown in fig. 3, the reinforcing rib 603 is connected to two positions between the folded plate 1012 and the bent plate 602, and the two reinforcing ribs 603 are arranged at intervals along the width direction of the folded plate 1012, which has better effect of improving the strength and fatigue property.
The utility model discloses a control arm behind automotive suspension, spring-loaded portion 103 place plane is higher, can reduce the spring height of suspension assembly, thereby prevent spring unstability under the vehicle special circumstances for example the emergency braking condition, and the structure that can have relatively reduces welding process, solve connecting rod support bolt, the weight that leads to during nut and the assemble, the problem that the cost increases, solve the problem that back control arm weight is big simultaneously, processing and material cost are all lower, the assembly is simple and convenient and can guarantee the performance and the intensity requirement of suspension assembly.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An automotive suspension rear control arm, characterized by comprising:
the control arm comprises a control arm body (1) connected between a steering knuckle and an auxiliary frame of a suspension assembly, wherein the cross section of the control arm body (1) is in an inverted U shape and comprises a main plate (101) and two side plates (102) positioned on two opposite sides of the main plate (101), the main plate (101) comprises a flat plate (1011) arranged close to the steering knuckle and a folded plate (1012) connected with the flat plate (1011) and bent towards one side of the auxiliary frame; a spring bearing part (103) is arranged on the other surface of the flat plate (1011) opposite to the surface provided with the side plate (102), and the spring bearing part (103) forms a support for a spring in the suspension assembly;
the reinforcing plate (2) is connected between the two side plates (102), and the reinforcing plate (2) and the flat plate (1011) are arranged at a distance.
2. The automotive suspension rear control arm according to claim 1, characterized in that: the knuckle connecting parts (1021) of the control arm body (1) are through holes which are correspondingly arranged on the two side plates (102).
3. The automotive suspension rear control arm according to claim 1, characterized in that: the auxiliary frame connecting part (4) of the control arm body (1) is a bushing fixedly connected in the connecting hole in a press fit mode.
4. The automotive suspension rear control arm according to claim 1, characterized in that: and flanges (5) are arranged on the other side of each side plate (102) relative to the side connected with the flat plate (1011), and the reinforcing plate (2) is fixedly connected between the two flanges (5).
5. The automotive suspension rear control arm according to claim 1, characterized in that: at least one of the main plate (101), the side plate (102) and the reinforcing plate (2) is provided with a lightening hole (3).
6. The automotive suspension rear control arm according to claim 1, characterized in that: and one side of the reinforcing plate (2) facing the steering knuckle and one side of the reinforcing plate facing the auxiliary frame are provided with notches (201).
7. The automotive suspension rear control arm according to any one of claims 1 to 6, characterized in that: and a connecting rod support (6) is arranged on one side of the folded plate (1012) facing the side plate (102), a connecting rod through hole is formed in the folded plate (1012), and a connecting rod of the suspension assembly penetrates through the connecting rod through hole to be fixedly connected with the connecting rod support (6).
8. The automotive suspension rear control arm according to claim 7, characterized in that: the connecting rod support (6) comprises a connecting plate (601) which is connected between the two side plates (102) and is provided with a connecting rod mounting hole (6011), and further comprises a bent plate (602) which is integrally formed with the connecting plate (601) and connected with the control arm body (1) in an abutting mode.
9. The automotive suspension rear control arm according to claim 8, characterized in that: the cross section of the bent plate (602) follows the control arm body (1).
10. The automotive suspension rear control arm according to claim 8, characterized in that: a reinforcing rib (603) is connected between the folded plate (1012) and the bent plate (602).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920614455.0U CN209938242U (en) | 2019-04-30 | 2019-04-30 | Automobile suspension rear control arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920614455.0U CN209938242U (en) | 2019-04-30 | 2019-04-30 | Automobile suspension rear control arm |
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| Publication Number | Publication Date |
|---|---|
| CN209938242U true CN209938242U (en) | 2020-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920614455.0U Active CN209938242U (en) | 2019-04-30 | 2019-04-30 | Automobile suspension rear control arm |
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| CN (1) | CN209938242U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3904131A4 (en) * | 2018-12-26 | 2022-03-02 | Nippon Steel Corporation | Automobile undercarriage component |
| CN114454679A (en) * | 2022-02-28 | 2022-05-10 | 奇瑞汽车股份有限公司 | Control arm assembly and vehicle |
| CN114763046A (en) * | 2021-01-15 | 2022-07-19 | 长城汽车股份有限公司 | Control arm and vehicle under back |
| CN115091906A (en) * | 2022-07-27 | 2022-09-23 | 奇瑞汽车股份有限公司 | Rear lower control arm structure |
| CN115503410A (en) * | 2022-09-23 | 2022-12-23 | 智己汽车科技有限公司 | Spring control arm, spring control arm assembly and vehicle |
-
2019
- 2019-04-30 CN CN201920614455.0U patent/CN209938242U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3904131A4 (en) * | 2018-12-26 | 2022-03-02 | Nippon Steel Corporation | Automobile undercarriage component |
| CN114763046A (en) * | 2021-01-15 | 2022-07-19 | 长城汽车股份有限公司 | Control arm and vehicle under back |
| CN114454679A (en) * | 2022-02-28 | 2022-05-10 | 奇瑞汽车股份有限公司 | Control arm assembly and vehicle |
| CN115091906A (en) * | 2022-07-27 | 2022-09-23 | 奇瑞汽车股份有限公司 | Rear lower control arm structure |
| CN115503410A (en) * | 2022-09-23 | 2022-12-23 | 智己汽车科技有限公司 | Spring control arm, spring control arm assembly and vehicle |
| CN115503410B (en) * | 2022-09-23 | 2024-05-14 | 智己汽车科技有限公司 | Spring control arm, spring control arm assembly and vehicle |
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