1. A control arm assembly is characterized by comprising a control arm body, a bushing, a ball pin assembly and an adjusting component, wherein the bushing is arranged at a first end of the control arm body; the adjusting component is arranged between the control arm body and the ball pin seat and used for adjusting the distance between the ball pin and the second end of the control arm body.

2. The control arm assembly as claimed in claim 1, wherein the control arm body includes a main body, a bushing sleeve, a fixing block, the bushing sleeve being disposed at a left end of the fixing block, the main body being disposed on the fixing block; the ball pin seat is connected with the main body in a sliding mode, and the adjusting assembly is arranged between the fixing block and the ball pin seat.

3. The control arm assembly as claimed in claim 2, wherein the main body and the fixed block form an L-shaped structure, the ball pin seat comprises an L-shaped connecting block, a first block of the L-shaped connecting block is slidably connected with the main body, and a second block of the L-shaped connecting block is opposite to the fixed block; and two ends of the adjusting assembly are respectively connected with the fixed block and the second block body.

4. The control arm assembly as claimed in claim 3, wherein the main body is a U-shaped plate, and an opening of the U-shaped plate faces the fixing block; the first block is located in the opening, and a locking assembly used for locking the first block is arranged on the main body.

5. The control arm assembly according to claim 4, wherein the locking component comprises a fixing bolt and a fixing nut, the first block is provided with an elongated hole, and the extending direction of the elongated hole is the same as the extending direction of the first block; a first mounting hole and a second mounting hole which are opposite to the strip-shaped hole are respectively formed in the two side plates of the U-shaped plate; and the screw section of the fixing bolt is matched with the fixing nut after penetrating through the first mounting hole, the strip-shaped hole and the second mounting hole.

6. The control arm assembly as claimed in claim 4, wherein two side plates of the left end of the main body are provided with extension plates extending in a direction away from the bottom plate of the U-shaped plate, and one ends of the two extension plates away from the side plates are connected through a connecting plate; the fixed block is arranged in a space defined by the two extension plates and the connecting plate.

7. The control arm assembly according to any one of claims 3 to 6, wherein the adjusting component comprises a screw, a first fastening nut and a second fastening nut, a first threaded hole is formed in a surface of the fixing block facing the second block, a second threaded hole coaxial with the first threaded hole is formed in the second block, and the first threaded hole and the second threaded hole are opposite in rotation direction; the left section of the screw rod is provided with a first external thread matched with the first threaded hole, and the right section of the screw rod is provided with a second external thread matched with the second threaded hole; the first fastening nut is arranged on the left section, and the second fastening nut is arranged on the right section.

8. The control arm assembly of claim 7, wherein the adjustment assembly further comprises a rotation block disposed at a junction of the left segment and the right segment.

9. The control arm assembly as set forth in claim 8 wherein said left segment is connected to said right segment at a location intermediate said threaded rod.

10. The control arm assembly of claim 8, wherein the rotation block is a regular polygon structure.

Background

The control arm, also known as a "swing arm", serves as a guiding and force transmitting element of an automotive suspension system to transmit various forces on the wheels to the body of the vehicle while ensuring that the wheels move along a certain trajectory. The automobile controller elastically connects the wheels with the automobile body or the frame through ball pins or bushings respectively. The control arm may be divided into an upper control arm, a lower control arm, a trailing arm, etc. depending on the use site.

As shown in fig. 1 and 2, the existing control arm assembly includes a ball pin assembly, a control arm body 11, and a bushing 13, wherein the ball pin assembly is mounted on the control arm body 11 by a bolt 14 or riveted with the control arm body by a rivet; the bush 13 is press-fitted to the control arm body 11 by interference fit. The ball pin assembly includes a ball pin 12 and a ball pin seat 15, and the control arm body 11 may be formed by welding, forging, or casting.

However, after the ball pin assembly, the control arm body and the bushing are assembled together, the distance between the ball pin assembly and the bushing is fixed and cannot be adjusted, and the length of the control arm assembly cannot be adjusted, so that the adjustment of the four-wheel positioning parameters of the vehicle cannot be realized by adjusting the length of the control arm.

Disclosure of Invention

The present invention is directed to a control arm assembly that solves the above-mentioned problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme:

a control arm assembly comprises a control arm body, a bushing, a ball pin assembly and an adjusting component, wherein the bushing is arranged at a first end of the control arm body, the ball pin assembly comprises a ball pin seat and a ball pin, the ball pin seat is connected with a second end of the control arm body in a sliding mode, and the ball pin is arranged at one end, far away from the bushing, of the ball pin seat; the adjusting component is arranged between the control arm body and the ball pin seat and used for adjusting the distance between the ball pin and the second end of the control arm body.

Preferably, the control arm body comprises a main body, a bushing sleeve and a fixed block, the bushing sleeve is arranged at the left end of the fixed block, and the main body is arranged on the fixed block; the ball pin seat is connected with the main body in a sliding mode, and the adjusting assembly is arranged between the fixing block and the ball pin seat.

Preferably, the main body and the fixing block form an L-shaped structure, the ball pin seat comprises an L-shaped connecting block, a first block of the L-shaped connecting block is slidably connected with the main body, and a second block of the L-shaped connecting block is opposite to the fixing block; and two ends of the adjusting assembly are respectively connected with the fixed block and the second block body.

Preferably, the main body is a U-shaped plate, and an opening of the U-shaped plate faces the fixing block; the first block is located in the opening, and a locking assembly used for locking the first block is arranged on the main body.

Preferably, the locking assembly comprises a fixing bolt and a fixing nut, the first block body is provided with a strip-shaped hole, and the extending direction of the strip-shaped hole is the same as the extending direction of the first block body; a first mounting hole and a second mounting hole which are opposite to the strip-shaped hole are respectively formed in the two side plates of the U-shaped plate; and the screw section of the fixing bolt is matched with the fixing nut after penetrating through the first mounting hole, the strip-shaped hole and the second mounting hole.

Preferably, two side plates at the left end of the main body are respectively provided with an extension plate extending towards the direction far away from the bottom plate of the U-shaped plate, and one ends of the two extension plates far away from the side plates are connected through a connecting plate; the fixed block is arranged in a space defined by the two extension plates and the connecting plate.

Preferably, the adjusting assembly comprises a screw, a first fastening nut and a second fastening nut, a first threaded hole is formed in one surface, facing the second block, of the fixing block, a second threaded hole coaxial with the first threaded hole is formed in the second block, and the rotation directions of the first threaded hole and the second threaded hole are opposite; the left section of the screw rod is provided with a first external thread matched with the first threaded hole, and the right section of the screw rod is provided with a second external thread matched with the second threaded hole; the first fastening nut is arranged on the left section, and the second fastening nut is arranged on the right section.

Preferably, the adjustment assembly further comprises a rotation block, and the rotation block is arranged at the joint of the left section and the right section.

Preferably, the joint of the left section and the right section is located at the middle position of the screw.

Preferably, the rotating block is in a regular polygon structure.

The invention has the beneficial effects that:

when the control arm assembly is used, the ball pin seat is connected with the second end of the control arm body in a sliding mode, the adjusting component is arranged between the control arm body and the ball pin seat, and the distance between the ball pin and the second end of the control arm body can be conveniently adjusted through the adjusting component, so that the distance between the bushing and the ball pin can be conveniently adjusted, the length of the control arm assembly can be adjusted, and the four-wheel positioning parameters of a vehicle can be conveniently adjusted.

Drawings

In order to more clearly describe the embodiments of the present application or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, and the embodiments of the present invention will be further described in detail with reference to the drawings, wherein

FIG. 1 is a schematic view of a prior art control arm assembly;

FIG. 2 is a schematic view of a prior art ball pin assembly;

FIG. 3 is a schematic view of a control arm assembly according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a control arm body according to an embodiment of the present invention;

FIG. 5 is a schematic view of a ball and pin assembly provided in accordance with an embodiment of the present invention;

fig. 6 is a schematic diagram of an adjusting assembly according to an embodiment of the present invention.

In the drawings, the reference numbers:

11. control arm body 12, ball pin 13, bush 14, bolt 15, ball pin seat

21. Control arm body 22, bush sleeve 23, fixed block 231, first screw hole

24. Side plate 25, bottom plate 26, first mounting hole 27, second mounting hole

28. Extension plate 29, connecting plate 31, bush 41, ball pin seat 42, ball pin

43. A first block 44, a second block 45, a second threaded hole 46, a strip-shaped hole

51. Adjusting component 52, left section 53, right section 54 and first fastening nut

55. Second fastening nut 56, rotating block 57, disk 61 and fixing bolt

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description will be provided with reference to specific embodiments.

As shown in fig. 3 to 6, an embodiment of the present invention provides a control arm assembly, which includes a control arm body 21, a bushing 31, a ball pin assembly, and an adjusting component 51, where the bushing 31 is disposed at a first end of the control arm body 21, the ball pin assembly includes a ball pin seat 41 and a ball pin 42, the ball pin seat 41 is slidably connected with a second end of the control arm body, and the ball pin 42 is disposed at an end of the ball pin seat away from the bushing; the adjustment assembly 51 is disposed between the control arm body and the ball pin seat 41, and is used for adjusting the distance between the ball pin 42 and the second end of the control arm body.

When the control arm assembly provided by the embodiment of the invention is used, the ball pin seat 41 is in sliding connection with the second end of the control arm body 21, the adjusting component is arranged between the control arm body and the ball pin seat, and the distance between the ball pin and the second end of the control arm body can be conveniently adjusted through the adjusting component, so that the distance between the bushing and the ball pin can be conveniently adjusted, the length of the control arm assembly can be adjusted, and the adjustment of the four-wheel positioning parameters of a vehicle can be conveniently realized.

Further, the control arm body comprises a main body, a bushing sleeve 22 and a fixed block 23, wherein the bushing sleeve 22 is arranged at the left end of the fixed block 23, and the main body is arranged on the fixed block 23; the ball pin seat 41 is connected with the main body in a sliding mode, and the adjusting assembly is arranged between the fixing block and the ball pin seat. By adopting the scheme, the structure of the control arm body is simpler. It can be understood that the bushing sleeve and the main body can be respectively connected with the fixing block in a welding manner; the bushing 31 may be press fit into the bushing sleeve 22.

As shown in fig. 4 and 5, the main body and the fixing block 23 form an L-shaped structure, the ball pin seat includes an L-shaped connecting block, a first block 43 of the L-shaped connecting block is slidably connected with the main body, and a second block 44 of the L-shaped connecting block is opposite to the fixing block; the two ends of the adjusting component are respectively connected with the fixed block 23 and the second block 44, so that the distance between the fixed block and the second block is adjusted through the adjusting component, the ball pin can be far away from or close to the fixed block, and the horizontal distance between the ball pin and the bushing is adjusted. It can be understood that the L-shaped structure formed by the main body and the fixing block is connected with the L-shaped connecting block to form a U-shaped structure, and the adjusting component is positioned in the opening of the U-shaped structure.

Further, the main body is a U-shaped plate, and an opening of the U-shaped plate faces the fixing block 23; the first block 43 is located in the opening, and a locking assembly used for locking the first block 43 is arranged on the main body, so that when the adjustment assembly is used for adjusting the distance between the ball pin and the bushing, the first block 43 slides in the opening of the U-shaped plate, and the sliding first block can be locked through the locking assembly, so that the sliding of the first block in use is avoided.

Specifically, the locking assembly comprises a fixing bolt 61 and a fixing nut, the first block 43 is provided with an elongated hole 46, and the extending direction of the elongated hole is the same as the extending direction of the first block; a first mounting hole 26 and a second mounting hole 27 which are opposite to the elongated hole 46 are respectively arranged on two side plates 24 of the U-shaped plate; the screw section of the fixing bolt 61 passes through the first mounting hole 26, the elongated hole 46 and the second mounting hole 27, and then is matched with the fixing nut. By adopting the scheme, the screw section of the fixing bolt is screwed after being matched with the fixing nut, and the first block body 43 can be clamped by utilizing the two side plates 24 of the U-shaped plate, so that the first block body is locked. It is understood that the number of the elongated holes can be flexibly set according to the requirement, as shown in fig. 5, the number of the elongated holes 46 is two, and the number of the first mounting holes 26 and the second mounting holes 27 is two.

Preferably, two side plates at the left end of the main body are provided with extension plates 28 extending in the direction away from the bottom plate of the U-shaped plate, and one ends of the two extension plates 28 away from the side plate 24 are connected through a connecting plate 29; the fixing block is arranged in a space defined by the two extension plates and the connecting plate, so that the connection between the main body and the fixing block can be conveniently realized by utilizing the extension plates and the connecting plate. It can be understood that the extension plate and the connecting plate can be respectively welded with the fixing block, so that the connection between the main body and the fixing block is firm and reliable; the extension plate 28, the connecting plate 29 and the main body are of an integrated structure.

Further, the adjusting assembly comprises a screw, a first fastening nut 54 and a second fastening nut 55, a first threaded hole 231 is formed in one surface, facing the second block, of the fixing block, a second threaded hole 45 coaxial with the first threaded hole is formed in the second block, and the rotation directions of the first threaded hole 231 and the second threaded hole 45 are opposite; the left section 52 of the screw rod is provided with a first external thread matched with the first threaded hole, and the right section 53 of the screw rod is provided with a second external thread matched with the second threaded hole; the first fastening nut 54 is provided on the left section, and the second fastening nut 55 is provided on the right section. By adopting the scheme, only the screw rod needs to be rotated, the screw rod can be close to or far away from the bushing through the matching of the first external thread and the first threaded hole, and meanwhile, the second block body can be close to or far away from the fixed block through the matching of the second external thread and the second threaded hole, so that the distance between the bushing and the ball pin is adjusted.

Specifically, the adjustment assembly further comprises a rotation block 56, wherein the rotation block 56 is arranged at the joint of the left section and the right section, so that the rotation of the screw rod can be conveniently realized through the rotation block. It can be understood that, since the first threaded hole 231 and the second threaded hole 45 are oppositely threaded, when the screw rod is rotated, the left section is screwed into the first threaded hole so that the turning block is close to the bushing, and the right section is screwed into the second threaded hole so that the ball pin is close to the turning block; when the screw is rotated reversely, the left section 52 is screwed out of the first threaded hole to enable the rotating block to be far away from the bushing, and the right section 53 is screwed out of the second threaded hole to enable the ball pin to be far away from the rotating block.

Further, the connection point of the left section 52 and the right section 53 is located at the middle position of the screw, so that the left section 52 and the right section 53 of the screw have the same length. It will be appreciated that the left side of the turning block 56 is the left section of the screw and the right side of the turning block 56 is the right section of the screw. It may be preferred that the turning block 56 is welded at the junction of the left section 52 and the right section 53. In an embodiment provided by the invention, a disc 57 can be arranged at the joint of the left section and the right section, one side of the disc is connected with the rotating block, scales are arranged on the circumference of the disc, a support rod can be arranged on the main body, and a pointer for aligning with the zero scales on the disc is arranged on the support rod; the disc can be welded with the screw and the rotating block; the support rods and the hands are not shown in the figure.

Specifically, the turning block 56 is a regular polygon structure, so that the turning block is conveniently matched with a disassembling tool, and the rotation of the ground screw can be realized more quickly. It may be preferred that the turning blocks 56 have a regular hexagonal structure.

The distance between the ball pin assembly and the bushing can be adjusted, so that the length of the control arm assembly is lengthened or shortened; the four-wheel positioning parameters of the vehicle can be adjusted by adjusting the length of a single control arm assembly, and the wheel track and the wheel base of the vehicle can be adjusted by adjusting the combined length of a plurality of control arm assemblies; the same control arm assembly can be conveniently installed on vehicles with different wheel tracks or wheel bases, and the control arm assembly is better in universality.

The above are only preferred embodiments of the present invention, it should be noted that these examples are only for illustrating the present invention and not for limiting the scope of the present invention, and after reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalents also fall within the scope of the claims appended to the present application.