CN216467213U

CN216467213U - Connecting structure of lower control arm of vehicle

Info

Publication number: CN216467213U
Application number: CN202123314734.1U
Authority: CN
Inventors: 宋菲菲; 王广宇
Original assignee: Shenyang Ruilang Manufacturing Technology Co ltd
Current assignee: Shenyang Ruilang Manufacturing Technology Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-05-10
Anticipated expiration: 2031-12-27

Abstract

The utility model relates to a control arm technical field specifically is a connection structure of lower control arm of vehicle under car, including setting up annular installation department on the control arm down and nested in the inboard bush of installation department, be equipped with two relative annular opening structure's elasticity check ring between installation department and the bush, two check ring outer walls incline to the other end by its relative one end, the installation department inboard is equipped with the chucking inclined plane of laminating mutually with check ring slope outer wall. The utility model discloses a set up the check ring that the outer wall is the inclined plane between installation department and bush, and the inboard chucking inclined plane that sets up mutually with check ring slope outer wall laminating of installation department, when installation back bush received the axial force, reverse chucking between the chucking inclined plane of check ring outer wall and installation department inboard can prevent effectively that the bush from controlling the phenomenon that the arm drops down.

Description

Connecting structure of lower control arm of vehicle

Technical Field

The utility model relates to a control arm technical field specifically is a connection structure of lower control arm of vehicle under car.

Background

The automobile lower control arm body is connected with the rubber bushing in an interference fit connection mode generally, the rubber bushing and the control arm body are pressed together through special pressing equipment, the interference magnitude of the rubber bushing and the control arm body needs to be accurately designed, the difficulty is high, the pulling-out force of the bushing after pressing is difficult to control, and if the bushing and the control arm body are too loose after pressing, the bushing is likely to drop in use, so that potential safety hazards exist in a vehicle.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a connection structure of lower control arm of vehicle can make things convenient for the bush installation, effectively prevents the phenomenon that the bush drops from lower control arm simultaneously, has solved the difficult problem of installing of current bush.

(II) technical scheme

For realizing the aforesaid can make things convenient for the bush installation, effectively prevent the purpose of the phenomenon that the bush drops from controlling the arm down simultaneously, the utility model provides a following technical scheme: the utility model provides a connection structure of lower control arm of vehicle, including set up annular installation department on lower control arm with nested in the inboard bush of installation department, the installation department with be equipped with the elasticity retaining ring of two relative annular opening structures between the bush, two the retaining ring outer wall is by its relative one end to other end slope, the installation department inboard be equipped with the chucking inclined plane that retaining ring slope outer wall was laminated mutually.

Optionally, the stop ring is made of spring steel.

Optionally, when the opening of the stop ring is completely closed, the outer diameter of the thicker end of the stop ring is not larger than the inner diameter of the opening at the two ends of the mounting part.

Optionally, the inner side wall of the stop ring is provided with a rubber layer.

Optionally, all be equipped with a set of arch on the inside wall at installation department both ends, every group protruding quantity is two, two the arch set up in on the inside wall that the installation department is relative, two all be equipped with on the check ring outer wall with protruding sliding fit's spout, the spout sets up for the slope.

Optionally, the lower control arm is of a hollow structure, and a lightening hole penetrating through the upper surface and the lower surface of the lower control arm is formed in the middle of the lower control arm.

(III) advantageous effects

Compared with the prior art, the utility model provides a connection structure of lower control arm of vehicle possesses following beneficial effect:

1. the utility model discloses a set up the retaining ring that the outer wall is the inclined plane between installation department and bush, and the installation department inboard sets up the chucking inclined plane of laminating mutually with the outer wall of retaining ring slope, when the bush receives the axial force after the installation, reverse chucking between the chucking inclined plane of retaining ring outer wall and installation department inboard can prevent effectively that the bush from the phenomenon that the lower control arm drops;

2. the rubber layer is arranged on the inner side wall of the stop ring, so that the rubber layer not only increases the friction coefficient between the stop ring and the bushing, but also enables the stop ring and the bushing to be contacted more tightly, and the bushing after being further placed and installed drops;

3. the utility model discloses a set up the arch on the installation department to set up on the snap ring outer wall with protruding sliding fit's spout, take out the back at the bush, the snap ring is connected inboard at the installation department through the sliding fit of arch and spout, and need not to take out the snap ring, avoids the snap ring to lose.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the split structure of the present invention;

FIG. 3 is a schematic view of the A-A section structure of FIG. 1;

FIG. 4 is a sectional structure diagram of the mounting part of the present invention;

fig. 5 is a schematic view of the stop ring structure of the present invention.

In the figure: 1. a lower control arm; 10. lightening holes; 2. an installation part; 20. clamping the inclined plane; 3. a bushing; 4. a snap ring; 40. a chute; 5. a protrusion; 6. a rubber layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment is as follows: referring to fig. 1 to 5, an embodiment of the present invention provides a technical solution: a connecting structure of a lower control arm of a vehicle comprises an annular mounting part 2 arranged on a lower control arm 1 and a bushing 3 nested on the inner side of the mounting part 2, two elastic stop rings 4 with opposite annular opening structures are arranged between the mounting part 2 and the bushing 3, the outer walls of the two stop rings 4 are respectively inclined from one opposite end to the other opposite end, a clamping inclined plane 20 attached to the inclined outer wall of the stop ring 4 is arranged on the inner side of the mounting part 2, the two stop rings 4 are pressed into the inner side of the mounting part 2 after being closed, then the bushing 3 is arranged on the inner side of the stop ring 4 in a clearance fit manner, the stop ring 4 is loosened, the stop ring 4 is abutted between the bushing 3 and the mounting part 2 under the action of restoring force, when the bushing 3 is subjected to axial force after installation, the outer wall of the stop ring 4 is clamped reversely with the clamping inclined surface 20 on the inner side of the installation part 2, so that the bushing 3 is prevented from falling off from the lower control arm 1.

On the basis of the above embodiments, the snap ring 4 of the present embodiment is made of spring steel, and the snap ring 4 made of spring steel is more durable because the spring steel has excellent mechanical properties, anti-springing properties, fatigue properties, hardenability, and physicochemical properties.

On the basis of the above embodiments, when the opening of the snap ring 4 is completely closed, the outer diameter of the thicker end of the snap ring is not larger than the inner diameter of the opening at the two ends of the mounting part 2, so that the snap ring 4 can be conveniently installed inside the mounting part 2.

On the basis of the above embodiments, the rubber layer 6 is disposed on the inner side wall of the snap ring 4 in this embodiment, and the rubber layer 6 increases the friction coefficient between the snap ring 4 and the bushing 3, and makes the snap ring 4 and the bushing 3 contact more tightly, so that the installed bushing 3 is further not easy to fall off.

On the basis of the above embodiment, the inner side walls at the two ends of the mounting portion 2 of the present embodiment are provided with a set of protrusions 5, the number of each set of protrusions 5 is two, the two protrusions 5 are arranged on the inner side walls opposite to the mounting portion 2, the outer walls of the two snap rings 4 are provided with the sliding grooves 40 in sliding fit with the protrusions 5, the sliding grooves 40 are arranged in an inclined manner, after the bushing 3 is taken out, the snap rings 4 are connected to the inner side of the mounting portion 2 through the sliding fit of the protrusions 5 and the sliding grooves 40, the snap rings 4 do not need to be taken out, and the snap rings 4 are prevented from being lost.

On the basis of the above embodiments, the lower control arm 1 of the present embodiment is a hollow structure, and the middle portion of the lower control arm 1 is provided with the lightening holes 10 penetrating through the upper and lower surfaces of the lower control arm 1, and by configuring the lower control as a hollow structure and providing the lightening holes 10 on the lower control arm 1, the overall weight of the lower control arm 1 can be effectively reduced.

The working principle is as follows: when the bush 3 is assembled with the lower control arm 1, the two stop rings 4 are closed and pressed into the mounting part 2 from the mounting part 2, meanwhile, the bulge 5 on the inner wall of the mounting part 2 can be embedded into the sliding groove 40 on the outer wall of the stop ring 4, then the lining 3 is arranged inside the stop ring 4 in a clearance fit way, then, the snap ring 4 is released, and the snap ring 4 is pressed tightly between the bush 3 and the mounting portion 2 by the restoring force, and at this time, the inner wall of the stop ring 4 is tightly attached to the outer wall of the bushing 3, the outer wall of the stop ring 4 is tightly contacted with the clamping inclined plane 20 at the inner side of the mounting part 2, finally the lower control arm 1 assembled with the bushing 3 is mounted on an automobile, when the bushing 3 is subjected to axial force after installation, the outer wall of the stop ring 4 and the clamping inclined plane 20 on the inner side of the installation part 2 are clamped reversely, so that the phenomenon that the bushing 3 falls off from the lower control arm 1 is avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A connecting structure of a lower control arm of a vehicle, characterized in that: including set up annular installation department (2) on control arm (1) down with nested in installation department (2) inboard bush (3), installation department (2) with be equipped with elastic retaining ring (4) of two relative cyclic annular opening structures between bush (3), two retaining ring (4) outer wall is by its relative one end to the other end slope, installation department (2) inboard be equipped with the chucking inclined plane (20) that retaining ring (4) slope outer wall was laminated mutually.

2. The connecting structure of the lower control arm of the vehicle according to claim 1, characterized in that: the stop ring (4) is made of spring steel.

3. The connecting structure of the lower control arm of the vehicle according to claim 1, characterized in that: when the opening of the stop ring (4) is completely closed, the outer diameter of the thicker end of the stop ring is not larger than the inner diameter of the opening at the two ends of the mounting part (2).

4. The connecting structure of the lower control arm of the vehicle according to claim 1, characterized in that: and a rubber layer (6) is arranged on the inner side wall of the stop ring (4).

5. The connecting structure of the lower control arm of the vehicle according to claim 1, characterized in that: all be equipped with a set of arch (5), every group on the inside wall at installation department (2) both ends protruding (5) quantity is two, two protruding (5) set up in on the inside wall that installation department (2) is relative, two all be equipped with on retaining ring (4) outer wall with protruding (5) sliding fit's spout (40), spout (40) set up for the slope.

6. The connecting structure of the lower control arm of the vehicle according to claim 1, characterized in that: the lower control arm (1) is of a hollow structure, and a lightening hole (10) penetrating through the upper surface and the lower surface of the lower control arm (1) is formed in the middle of the lower control arm.