CN210553996U

CN210553996U - Control arm assembly

Info

Publication number: CN210553996U
Application number: CN201921199352.9U
Authority: CN
Inventors: 李川建
Original assignee: Yuhuan Jianhong Machinery Manufacturing Co Ltd
Current assignee: Yuhuan Jianhong Machinery Manufacturing Co ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-05-19
Anticipated expiration: 2029-07-26

Abstract

The utility model provides a control arm assembly belongs to car technical field. It has solved the inconvenient scheduling problem of current control arm assembly equipment. Control arm assembly, including the arm body that is "people" font, the upper end fixedly connected with bulb assembly of the arm body, convex spacing portion has on the front at arm body middle part, the mounting hole has been seted up along the left and right direction in spacing portion, wear to be equipped with the third gum cover assembly in the mounting hole, the third gum cover assembly includes the outer tube, the inner tube and be located the elastic component between outer tube and the inner tube, the mounting hole is including the entrance section that sets gradually, interlude and export section, be provided with on the hole wall of interlude and be the annular groove of dodging, the aperture of entrance is greater than the aperture of export section, the outer port of entrance sets up to the horn mouth, the outer tube include with entrance complex first section and with export section complex second section, be connected with the direction section between first section and the second section, the direction section is located and dodges groove department. This control arm assembly is convenient when connecting stably.

Description

Control arm assembly

Technical Field

The utility model belongs to the technical field of the car, a control arm assembly is related to.

Background

The suspension is a general term for a force transmission connecting device between a wheel and a vehicle body of an automobile, and has the functions of transmitting force and moment between the wheel and the vehicle body, buffering impact force transmitted to the vehicle body from an uneven road surface, and reducing vibration caused by the impact force so as to ensure that the automobile can run smoothly. The suspension comprises an elastic element, a shock absorber and a force transmission device which respectively play roles in buffering, shock absorbing and force transmission.

The elastic elements support vertical load and moderate and suppress vibration and impact caused by uneven road surface, and mainly comprise leaf springs, helical springs, torsion bar springs, air springs, rubber springs and the like. The shock absorber is used to suppress the shock of the spring after absorbing shock and the impact from the road surface, and is widely used in automobile to accelerate the attenuation of the vibration of the frame and the automobile body and improve the running smoothness of the automobile. The force transmission device comprises a control arm, the control arm is connected between the wheel and the vehicle body, and the force transmission device has guiding and force transmission functions.

Chinese patent literature discloses an automobile control arm, and the application number: cn201720077683. x; the notice number is: CN 206426787U ], which comprises an arm body, a ball head assembly, a first rubber sleeve and a second rubber sleeve, wherein the ball head assembly, the first rubber sleeve and the second rubber sleeve are all connected with the arm body, the arm body comprises a bending section, a raised limiting part is arranged on the bending section, the width of the limiting part is gradually increased from the middle to two ends, a first reinforcing part and a second reinforcing part which are both arc-shaped structures are arranged at the connecting end of the limiting part and the arm body, the first reinforcing part and the second reinforcing part are respectively arranged at two sides of the limiting part, the arm body is also provided with a first reinforcing rib and a second reinforcing rib, a first reinforcing groove is formed between the first reinforcing rib and the first reinforcing part, a second reinforcing groove is formed between the second reinforcing rib and the second reinforcing part, a third rubber sleeve is arranged on the limiting part, the third rubber sleeve comprises an inner pipe, an outer pipe and a reinforcing layer arranged between the inner pipe and the outer pipe, a first damping layer is arranged between the inner pipe and the reinforcing layer, a second damping layer is arranged between, the reinforcing layer is provided with a plurality of through holes, and the second damping layer is connected with the second damping layer through the through holes.

Because the mounting hole of outer tube and spacing portion is interference fit fixed, need during the installation wherein one end of outer tube to insert and stretch out from the other end from the one end of spacing portion mounting hole, assembly distance is long, and the installation is inconvenient.

Disclosure of Invention

The utility model aims at the above-mentioned problem that prior art exists, provide a control arm assembly, the technical problem of solution makes the third gum cover assembly assemble when stable with the arm body coupling convenient.

The purpose of the utility model can be realized by the following technical proposal:

control arm assembly, including the arm body that is "people" font, the upper end fixedly connected with bulb assembly of the arm body, the left and right sides both ends of arm body are fixedly connected with first gum cover assembly and second gum cover assembly respectively, have convex spacing portion on the front at arm body middle part, spacing portion is gone up and has been seted up the mounting hole along left and right directions, wear to establish and be fixed with the third gum cover assembly in the mounting hole, the third gum cover assembly includes outer tube, inner tube and is located the elastic component between outer tube and the inner tube, its characterized in that, the mounting hole includes the entry section, interlude and the export section that set gradually, be provided with on the hole wall of interlude and be annular dodge the groove, the aperture of entry section is greater than the aperture of export section, the outer port of entry section sets up to the horn mouth, the outer tube includes with entry section complex first section and with export section complex second section, the guide section is obliquely arranged between the first section and the second section and is positioned at the avoidance groove.

When assembling the third rubber sleeve assembly and the arm body, the third rubber sleeve assembly is inserted into the mounting hole from the inlet section of the mounting hole, so that the first section of the outer pipe is matched and fixed with the inlet section, the second section of the outer pipe is matched and fixed with the outlet section, and the guide section of the outer pipe is positioned at the avoidance groove. Because the both ends of outer tube respectively with the entry section and the export section cooperation of mounting hole to it is stable to have guaranteed to be connected between third gum cover assembly and the arm body. In the assembling process, the second section of the outer pipe is inserted from the outer port of the inlet section of the mounting hole, the outer port of the inlet section has a guiding function for a horn mouth, the second section of the outer pipe can smoothly enter the inlet section, the aperture of the inlet section is larger than that of the outlet section, and the second section is matched with the outlet section, namely the outer diameter of the second section is smaller than that of the inlet section, so that the second section of the outer pipe can easily pass through the inlet section; then the direction section enters into the entry section, and the direction section has the guide effect, can make the first section of outer tube smoothly enter into the entry section and realize the cooperation fixed, and the second section enters into the export section simultaneously and realizes the cooperation fixed. Therefore, interference fit can not be formed when the second section passes through the inlet section in the assembling process, so that the assembling distance of the interference fit is shortened, and the third rubber sleeve assembly is convenient to assemble with the arm body. The structure of mounting hole and the structural cooperation of outer tube make the equipment convenient when third gum cover assembly is connected stably with the arm body.

In the above control arm assembly, the outer side surface of the outer end of the second section has a guide surface arranged obliquely. The setting of spigot surface has the guide effect, makes things convenient for the second section to enter into entry section and export section, thereby makes things convenient for the second section to insert the export section and make second section and export section form the cooperation, makes third gum cover assembly and arm body equipment convenient especially.

In the control arm assembly, the side surface of the limiting part is provided with two convex blocks which are positioned at two sides of the outlet section, and the back surface of each convex block is integrally connected with the front surface of the arm body. The arrangement of the convex block can increase the structural strength of the arm body, so that the arm body is stable in structure. Meanwhile, the convex block has an identification function, so that the positions of the inlet section and the outlet section can be prevented from being mistaken during assembly, and the third rubber sleeve assembly and the arm body are convenient to assemble.

In the above control wall assembly, one side of the avoiding groove penetrates through the back surface of the arm body and forms a through hole. The through hole is convenient to avoid processing of the groove, and whether the outer pipe is installed in place or not can be observed through the through hole, so that the third rubber sleeve assembly and the arm body are convenient to assemble.

In the above control wall assembly, the outer end of the first section is folded outwards to form a retaining edge. The setting that keeps off along has the sign effect, can prevent to put the position of first section and second section during the equipment and turn over to it is convenient to make third gum cover assembly and arm body equipment.

Compared with the prior art, the utility model has the advantages of it is following:

the groove is dodged in the interlude setting of mounting hole, and the aperture of mounting hole entry is greater than the aperture of export section, sets up first section, direction section and second section on the outer tube, and first section and entry section cooperation, second section and export section cooperation, the direction section are located and dodge groove department, and the outer port of entry section sets up to the horn mouth simultaneously, makes both convenient assembling when guaranteeing that third gum cover assembly and arm body coupling are stable. The outer end of the second section is provided with a guide surface, so that the outer pipe can be conveniently inserted, and the third rubber sleeve assembly is conveniently connected with the arm body. The arrangement of the convex block enables the arm body structure to be stable.

Drawings

FIG. 1 is an elevation view of the present control arm assembly;

3 FIG. 3 2 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 3 1 3; 3

Fig. 3 is a left side view of the present control arm assembly.

In the figure, 1, an arm body; 1a, a limiting part; 1b, mounting holes; 1b1, inlet section, 1b2, middle section; 1b3, outlet section; 1c, avoiding the groove; 1d, a bump; 1e, a through hole; 2. a ball head assembly; 3. a first gum cover assembly; 4. a second gum cover assembly; 5. a third rubber sleeve assembly; 6. an outer tube; 6a, a first section; 6b, a guide section; 6c, a second section; 6d, a guide surface; 6e, blocking edges; 7. an inner tube; 8. an elastic member.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1-3, a control arm assembly includes a herringbone arm body 1, a ball head assembly 2 is fixedly connected to the upper end of the arm body 1, and a first rubber sleeve assembly 3 and a second rubber sleeve assembly 4 are respectively and fixedly connected to the left and right ends of the arm body 1. The front face in the middle of the arm body 1 is provided with a convex limiting part 1a, the limiting part 1a is provided with a mounting hole 1b along the left-right direction, and a third rubber sleeve assembly 5 is arranged in the mounting hole 1b in a penetrating manner and is fixed.

The third rubber sleeve assembly 5 comprises an outer pipe 6, an inner pipe 7 and an elastic part 8 positioned between the outer pipe 6 and the inner pipe 7, wherein a supporting cylinder is arranged in the elastic part 8, and a plurality of through holes are formed in the supporting cylinder. The mounting hole 1b includes the entry section 1b1, interlude 1b2 and the export section 1b3 that set gradually, is provided with on the hole wall of interlude 1b2 and is the annular groove of dodging 1c, and the aperture of entry section 1b1 is greater than the aperture of export section 1b3, and the outer port of entry section 1b1 sets up to the horn mouth. One side of the avoiding groove 1c penetrates the back surface of the arm body 1 to form a through hole 1 e. The outer tube 6 comprises a first section 6a cooperating with the inlet section 1b1 and a second section 6c cooperating with the outlet section 1b3, the first section 6a having an outer diameter greater than the outer diameter of the second section 6 c. A guide section 6b is obliquely arranged between the first section 6a and the second section 6c, and the guide section 6b is positioned at the avoidance groove 1 c. The outer end of the first section 6a is turned outwards to form an annular retaining edge 6e, and the outer side surface of the outer end of the second section 6c is provided with an obliquely arranged guide surface 6 d. The side of the limiting part 1a is provided with two convex blocks 1d, the two convex blocks 1d are positioned at two sides of the outlet section 1b3, the back of the convex block 1d is integrally connected with the front of the arm body 1, and the two convex blocks 1d are arranged in parallel.

When the third rubber sleeve assembly 5 and the arm body 1 are assembled, the third rubber sleeve assembly 5 is inserted into the mounting hole 1b from the inlet section 1b1 of the mounting hole 1b, so that the first section 6a of the outer tube 6 is matched and fixed with the inlet section 1b1, the second section 6c of the outer tube 6 is matched and fixed with the outlet section 1b3, and the guide section 6b of the outer tube 6 is positioned at the avoidance groove 1 c. Because the two ends of the outer tube 6 are respectively matched with the inlet section 1b1 and the outlet section 1b3 of the mounting hole 1b, the stable connection between the third rubber sleeve assembly 5 and the arm body 1 is ensured. In the assembling process, the second section 6c of the outer tube 6 is inserted from the outer port of the inlet section 1b1 of the mounting hole 1b, because the outer port of the inlet section 1b1 has a guiding function for a bell mouth, and the outer end of the second section 6c is provided with a guiding surface 6d, the second section 6c of the outer tube 6 can smoothly enter the inlet, the aperture of the inlet section 1b1 is larger than that of the outlet section 1b3, the second section 6c is matched with the outlet section 1b3, namely, the outer diameter of the second section 6c is smaller than that of the inlet section 1b1, therefore, the second section 6c of the outer tube 6 can easily pass through the inlet section 1b 1; then the guiding section 6b enters the inlet section 1b1, the guiding section 6b has guiding function, so that the first section 6a of the outer tube 6 can smoothly enter the inlet section 1b1 and realize matching and fixing, and the second section 6c enters the outlet section 1b3 and realize matching and fixing. Therefore, the second section 6c cannot form interference fit when passing through the inlet section 1b1 in the assembling process, so that the assembling distance of the interference fit is shortened, and the third rubber sleeve assembly 5 and the arm body 1 are convenient to assemble. The structure of the mounting hole 1b is matched with the structure of the outer pipe 6, so that the third rubber sleeve assembly 5 is stably connected with the arm body 1 and is convenient to assemble.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. Control arm assembly, including the arm body (1) that is "people" font, the upper end fixedly connected with bulb assembly (2) of arm body (1), both ends are fixedly connected with first gum cover assembly (3) and second gum cover assembly (4) respectively about arm body (1), have convex spacing portion (1a) on the front at arm body (1) middle part, mounting hole (1b) has been seted up along left and right directions on spacing portion (1a), wear to establish and be fixed with third gum cover assembly (5) in mounting hole (1b), third gum cover assembly (5) include outer tube (6), inner tube (7) and lie in elastic component (8) between outer tube (6) and inner tube (7), its characterized in that, mounting hole (1b) are including the entry section (1b1), interlude (1b2) and export section (1b3) that set gradually, be provided with on the hole wall face of interlude (1b2) and be annular dodge groove (1c), the aperture of entry section (1b1) is greater than the aperture of export section (1b3), the outer port of entry section (1b1) sets up to the horn mouth, outer tube (6) include with entry section (1b1) complex first section (6a) and with export section (1b3) complex second section (6c), be connected with guide section (6b) that the slope set up between first section (6a) and second section (6c), guide section (6b) are located and dodge groove (1c) department.

2. Control arm assembly according to claim 1, characterized in that the outer side of the outer end of the second section (6c) has an obliquely arranged guide surface (6 d).

3. The control arm assembly according to claim 1, wherein the side surface of the stopper portion (1a) has two protruding portions (1d), the protruding portions (1d) are located on both sides of the outlet section (1b3), and the back surface of the protruding portion (1d) is integrally connected to the front surface of the arm body (1).

4. Control arm assembly according to any of claims 1 to 3, characterized in that one side of the escape slot (1c) extends through the back of the arm body (1) and forms a through hole (1 e).

5. Control arm assembly according to any of claims 1-3, characterized in that the outer end of the first section (6a) is turned outwards to form a stop edge (6 e).