CN210191065U

CN210191065U - Control arm assembly

Info

Publication number: CN210191065U
Application number: CN201921231100.XU
Authority: CN
Inventors: Chuanjian Li; 李川建
Original assignee: Yuhuan Jianhong Machinery Manufacturing Co Ltd
Current assignee: Yuhuan Jianhong Machinery Manufacturing Co ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-03-27
Anticipated expiration: 2029-07-31

Abstract

The utility model provides a control arm assembly belongs to car technical field. The control arm assembly solves the problems that a ball head assembly in the existing control arm assembly is unstable in work and the like. Control arm assembly, including the arm body and bulb assembly, the bulb assembly includes bulb shell and bulb round pin, the bulb shell is equipped with the installation cavity, upper shed and under shed, the bulb round pin includes pole portion and the bulb portion that is located the installation cavity, it is fixed with the bulb lid to be located the under shed on the bulb shell, be provided with down the ball seat between bulb lid and the bulb portion, be provided with the spring down between ball seat and the bulb lid, be provided with the fender shoulder on the chamber wall at installation cavity top, still be provided with the last ball seat that is located between fender shoulder and the lower ball seat in the installation cavity, it supports and leans on the fender shoulder to go up the top surface of ball seat suit in the bulb portion outside and last ball seat, the lateral surface of bulb portion supports and leans on last ball seat and lower ball seat, it has the oil storage clearance to go up. This control arm assembly can improve the stability of bulb assembly work.

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 a high strength control arm, and the application number: CN 201720078955.8; the notice number is: 206426783U ], comprises an arm body, wherein the arm body comprises a first connecting end, a second connecting end and a third connecting end, the first connecting end is provided with a first connecting shaft sleeve, the second connecting end is provided with a second connecting shaft sleeve, and the third connecting end is provided with a ball pin assembly. The ball pin assembly comprises a ball seat, a ball head arranged in the ball seat, an end cover and a dust cover, and the ball pin assembly is also called as a ball head assembly. The ball seat is connected with the end cover to form a connecting cavity, the ball head is arranged in the connecting cavity, a damping block is arranged between the connecting cavity and the ball head, and the damping block has elasticity. Be equipped with the stopper in connecting the cavity, the stopper annular sets up on the ball seat, is equipped with the annular groove with stopper looks adaptation on the snubber block. The longitudinal section of the limiting block is in a right-angle triangular shape, the limiting block comprises a leading-in surface and a blocking surface, a buffering surface is arranged between the leading-in surface and the blocking surface, and the buffering surface is in an arc-shaped structure.

The stopper has the positioning action to the snubber block, consider the location installation that realizes snubber block and stopper, the snubber block needs necessary deformability in the upper portion of annular groove department, receive the power of orientation end cover promptly when the snubber block is the decurrent power like this, because leading-in face is the inclined plane, the snubber block produces decurrent compressive deformation easily, and the triangular structure shape of stopper blocks the snubber block easily behind the downward compressive deformation of snubber block, lead to the snubber block to be difficult for reseing, make the shock attenuation effect of snubber block discount greatly, make bulb assembly work unstable.

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 is how to improve the stability of bulb assembly work.

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

the control arm assembly comprises a triangular arm body, a through hole is formed in the middle of the arm body, a ball head assembly is fixedly connected to the upper end of the arm body, rubber sleeve assemblies are connected to the left end and the right end of the arm body respectively, the ball head assembly comprises a ball head shell connected with the arm body and a ball head pin installed in the ball head shell, an installation cavity is formed in the ball head shell, an upper opening is formed in the top of the ball head shell, a lower opening is formed in the bottom of the ball head shell, the ball head pin comprises a ball head portion and a rod portion, the ball head portion is installed in the installation cavity, the rod portion extends out of the ball head shell through the upper opening, a dust cover is arranged between the rod portion and the ball head shell, a ball head cover is fixed to the ball head shell at the lower opening, a lower ball seat is arranged between the ball head cover and the ball head portion, and the control arm assembly is characterized in that, be provided with on the chamber wall at installation cavity top and keep off the shoulder, still be provided with in the installation cavity and be located the last ball seat between keeping off the shoulder and the lower ball seat, the top surface that goes up ball seat suit and go up the ball seat and support and lean on keeping off the shoulder in the bulb portion outside, the lateral surface of bulb portion supports and leans on last ball seat and lower ball seat, it has the oil storage clearance to go up between ball seat and the lower ball seat, be full of lubricating grease in the oil storage clearance.

The upper ball seat and the lower ball seat separate the ball head pin from the ball head shell, so that direct collision between the ball head seat and the ball head pin is avoided, and the working stability of the ball head assembly is facilitated. Because set up the oil storage clearance between last ball seat and the lower ball seat, be full of lubricating grease in the oil storage clearance, consequently the bulb round pin is at the wobbling in-process, can bring the lubricating grease in the oil storage clearance into between bulb round pin and the last ball seat and between bulb round pin and the lower ball seat, makes between bulb round pin and the last ball seat and the lower ball seat all can obtain the lubrication, makes the bulb round pin swing process stable smooth and easy. Fix a position ball seat and bulb down through the spring, the spring has energy-absorbing cushioning effect, the shock attenuation to the bulb round pin has been realized, receive the power towards the bulb lid simultaneously and produce compression deformation back, the hysteresis quality that lubricating grease flows can make and go up the ball seat and temporarily keep on keeping off the shoulder, and go up and have lubricating grease between ball seat and the bulb round pin, lubricating grease has produced certain cushioning effect, the rigidity collision that produces when can reducing the spring like this and reset, thereby improve the stability of bulb assembly work. This control wall assembly can improve the stability of bulb assembly work.

In foretell control arm assembly, the side that leans on with the bulb portion on the upper ball seat is provided with several vertical oil grooves on, upward vertical oil groove is linked together with the oil storage clearance, the side that leans on with the bulb portion on the lower ball seat is provided with several vertical oil grooves down, vertical oil groove is linked together with the oil storage clearance down.

Go up the setting of vertical oil groove and make the lubricated grease in the oil storage clearance can enter into more swiftly and lubricate between ball seat and the bulb portion, and the setting of lower vertical oil groove makes the lubricated grease in the oil storage clearance can enter into more swiftly and lubricate between ball seat and the bulb portion down, is favorable to improving the stability of bulb assembly work.

In the control arm assembly, the bottom surface of the lower ball seat is provided with a through oil hole, the lower longitudinal oil groove is communicated with the oil hole, the ball head cover is provided with a threaded hole, and the threaded hole is in threaded connection with an oil nozzle. Lubricating grease is supplemented into the mounting cavity through the oil nozzle, so that the lubricating performance of the ball head part is guaranteed, the lubricating clearance is full of the lubricating grease, and the working stability of the ball head assembly is improved.

In the control arm assembly, a connecting cylinder is arranged at the upper end of the arm body, the ball head shell is inserted into the connecting cylinder, a plurality of anti-slip strips are distributed on the outer side surface of the ball head shell along the circumferential direction, the anti-slip strips are matched and fixed with the inner side surface of the connecting cylinder, a retaining ring and an annular groove which are respectively located at two ends of the connecting cylinder are further arranged on the outer side surface of the ball head shell, a retaining ring is fixed in the annular groove, and two ends of the connecting cylinder respectively abut against the retaining ring and the retaining ring.

Axial fixation between the ball head seat and the arm body is realized through the retaining ring and the retaining ring, and circumferential fixation is realized through the matching of the anti-slip strip and the connecting cylinder, so that the ball head assembly is stably fixed on the arm body, and the work of the ball head assembly is stable.

In the control arm assembly, the rod part is sleeved and fixed with a ball pin sleeve made of polyurethane, the ball pin sleeve is positioned on the inner side of the dust cover, and the outer side surface of the top of the ball pin sleeve is provided with a convex ring. The ball pin sleeve has a protection effect, friction and abrasion between the dust cover and the rod part of the ball pin in the swinging process of the ball pin are avoided, the dust cover is prevented from being damaged to cause the loss of lubricating grease, and the work stability of the ball head assembly is facilitated.

In the above control arm assembly, the spring is a disc spring. The disc spring occupies small space, so that the ball head assembly has a compact structure.

In the control arm assembly, an inclined surface which is obliquely arranged at the oil storage gap is arranged on the wall surface of the mounting cavity, and the inclined surface faces the lower ball seat. When the upper ball seat is installed, the installation cavity is arranged from the lower opening, and the inclined surface has a guiding function and is convenient to install the upper ball seat.

In the control arm assembly, a convex ridge is arranged on the front surface of the arm body between the ball head assembly and the through hole. The raised ridge can increase the structural strength of the arm body, so that the control arm assembly works stably.

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

the ball seat is arranged, an oil storage gap is formed between the upper ball seat and the lower ball seat, lubricating grease is filled in the oil storage gap, and the spring is arranged between the lower ball seat and the ball head cover, so that the ball head pin is stable in movement, and the working stability of the ball head assembly is improved. The upper ball seat is provided with an upper longitudinal oil groove, the lower ball seat is provided with a lower longitudinal oil groove and an oil through hole, and the ball head cover is provided with an oil nozzle, so that the lubrication of the ball head part is good, and the improvement of the working stability of the ball head assembly is facilitated. The ball head shell is fixed through the retaining ring, the retaining ring and the anti-slip strip, so that the ball head assembly and the arm body are fixed stably. The rod part of the ball pin is provided with a ball pin sleeve for protecting the dust cover, preventing lubricating grease leakage caused by the damage of the dust cover and ensuring the stable work of the ball head assembly.

Drawings

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

FIG. 2 is a cross-sectional view of the present control arm assembly at the ball head assembly;

FIG. 3 is a cross-sectional view of the upper ball seat in the present control arm assembly;

FIG. 4 is a cross-sectional view of the lower ball seat in the present control arm assembly.

In the figure, 1, an arm body; 1a, a through hole; 1b, connecting cylinder; 1c, a ridge; 1d, convex strips; 2. a ball head assembly; 3. a rubber sleeve assembly; 4. a ball head housing; 4a, mounting a cavity; 4b, an upper opening; 4c, a lower opening; 4d, a shoulder; 4e, anti-slip strips; 4f, a baffle ring; 4g of annular groove; 4h, inclining the surface; 5. a ball stud; 5a, a ball head part; 5b, a rod part; 6. a dust cover; 7. a ball head cover; 7a, a threaded hole; 8. a ball seat is arranged; 8a, a lower longitudinal oil groove; 8b, oil through holes; 9. a spring; 10. a ball seat is arranged; 10a, an upper longitudinal oil groove; 11. an oil storage gap; 12. a nozzle tip; 13. a ball pin sleeve; 13a, a convex ring; 14. and a retainer ring.

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. 1-4, a control arm assembly comprises a triangular arm body 1, a through hole 1a is formed in the middle of the arm body 1, a ball head assembly 2 is fixedly connected to the upper end of the arm body 1, and rubber sleeve assemblies 3 are respectively connected to the left end and the right end of the arm body 1. Lie in on the front of arm body 1 and be provided with convex ridge 1c between bulb assembly 2 and through-hole 1a, lie in on the front of arm body 1 and be provided with sand grip 1d between two gum cover assemblies 3, convex ridge 1c and sand grip 1d homoenergetic improve the structural strength of arm body 1.

The ball head assembly 2 comprises a ball head shell 4 and a ball head pin 5, the ball head shell 4 is connected with the arm body 1, and the ball head pin 5 is installed in the ball head shell 4. A mounting cavity 4a is arranged in the ball head shell 4, an upper opening 4b is arranged at the top of the ball head shell 4, and a lower opening 4c is arranged at the bottom of the ball head shell 4. The ball stud 5 comprises a rod part 5b and a ball head part 5a connected to the bottom end of the rod part 5b, the ball head part 5a is installed in the installation cavity 4a, and the rod part 5b extends out of the ball head shell 4 through the upper opening 4 b. The upper end department of the arm body 1 is provided with a connecting cylinder 1b, and bulb shell 4 is inserted and is established in connecting cylinder 1b, is provided with on the lateral surface of bulb shell 4 along circumference distribution have several antislip strip 4e, antislip strip 4e and connecting cylinder 1 b's medial surface cooperation are fixed. The outer side surface of the ball head shell 4 is also provided with a retaining ring 4f and an annular groove 4g which are respectively positioned at two ends of the connecting cylinder 1b, a retaining ring 14 is fixed in the annular groove 4g, and two ends of the connecting cylinder 1b are respectively abutted against the retaining ring 4f and the retaining ring 14. A dust cover 6 is arranged between the rod part 5b and the ball head shell 4, the top of the dust cover 6 is sleeved on the rod part 5b and fixed with the rod part 5b, and the bottom of the dust cover 6 is sleeved on the ball head shell 4 and fixed with the ball head shell 4. The rod part 5b is sleeved and fixed with a ball pin sleeve 13 made of polyurethane, the ball pin sleeve 13 is positioned on the inner side of the dust cover 6, and the outer side surface of the top of the ball pin sleeve 13 is provided with a convex annular convex ring 13 a. The rod part 5b is also sleeved with a protective cover which is positioned at the outer side of the dust cover 6. The top end of the rod part 5b is connected with a nut in a threaded mode, and a cotter pin is arranged between the nut and the rod part 5 b.

A ball head cover 7 is fixed at the lower opening 4c of the ball head shell 4, a lower ball seat 8 is arranged between the ball head cover 7 and the ball head part 5a, a spring 9 is arranged between the lower ball seat 8 and the ball head cover 7, and the spring 9 can be a pressure spring or a disc spring. Be provided with convex fender shoulder 4d on the chamber wall at installation cavity 4a top, still be provided with in installation cavity 4a and be located fender shoulder 4d and lower ball seat 8 between last ball seat 10, go up ball seat 10 suit and lean on keeping off shoulder 4d at the outside of bulb portion 5a and the top surface of going up ball seat 10. The shaft portion 5b of the ball stud 5 passes through the upper socket 10, and the outer side surface of the ball portion 5a abuts against the upper socket 10 and the lower socket 8. An oil storage gap 11 is formed between the upper ball seat 10 and the lower ball seat 8, and lubricating grease is filled in the oil storage gap 11. The wall surface of the mounting cavity 4a is provided with an inclined surface 4h at the oil storage gap 11, and the inclined surface 4h faces the lower ball seat 8. A plurality of upper longitudinal oil grooves 10a are arranged on the side surface of the upper ball seat 10, which is abutted against the ball head part 5a, and the upper longitudinal oil grooves 10a are communicated with the oil storage gap 11; the side that leans on with bulb portion 5a on the ball seat 8 down is provided with several vertical oil grooves 8a down, and lower vertical oil groove 8a is linked together with oil storage clearance 11. The number of the upper longitudinal oil grooves 10a and the lower longitudinal oil grooves 8a is set according to the structural size of the upper ball seat 10 and the lower ball seat 8, and is generally set to four, five, six or seven, etc. The bottom surface of the lower ball seat 8 is provided with a through oil through hole 8b, the lower longitudinal oil groove 8a is communicated with the oil through hole 8b, the ball head cover 7 is provided with a threaded hole 7a, the threaded hole 7a and the oil through hole 8b are oppositely arranged, and the threaded hole 7a is in threaded connection with an oil nipple 12.

During installation, the upper ball seat 10 is placed into the installation cavity 4a through the lower opening 4c of the ball head shell 4, so that the top surface of the lower ball seat 8 abuts against the shoulder 4d, then the rod part 5b of the ball head pin 5 is inserted into the installation cavity 4a from the lower opening 4c, so that the ball head part 5a is installed into the installation cavity 4a, the rod part 5b of the ball head pin 5 extends out of the upper opening 4b, then the lower ball seat 8 is placed into the installation cavity 4a, then the spring 9 is placed at the bottom of the lower ball seat 8, and then the ball head cover 7 is fixed at the lower opening 4c, so that the spring 9 abuts against the ball head cover 7; then the ball pin sleeve 13 is sleeved on the rod part 5b of the ball pin 5, and then the dust cover 6 is fixed between the rod part 5b and the ball head shell 4; then, the ball head housing 4 is inserted into the connecting cylinder 1b, one end of the connecting cylinder 1b abuts against the retaining ring 4f, the retaining ring 14 is fixed in the annular groove 4g, and then the outer side of the dust cover 6 sleeved with the protective cover is arranged. Before use, lubricating grease can be filled into the mounting cavity 4a through the oil nozzle 12, or a part of lubricating grease can be filled in the assembling process, and the lubricating grease is supplemented through the oil nozzle 12 after the assembling is finished.

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. The control arm assembly comprises a triangular arm body (1), a through hole (1a) is formed in the middle of the arm body (1), a ball head assembly (2) is fixedly connected to the upper end of the arm body (1), rubber sleeve assemblies (3) are connected to the left end and the right end of the arm body (1) respectively, the ball head assembly (2) comprises a ball head shell (4) connected with the arm body (1) and a ball head pin (5) installed in the ball head shell (4), an installation cavity (4a) is formed in the ball head shell (4), an upper opening (4b) is formed in the top of the ball head shell (4), a lower opening (4c) is formed in the bottom of the ball head shell (4), the ball head pin (5) comprises a ball head portion (5a) and a rod portion (5b), the ball head portion (5a) is installed in the installation cavity (4a), and the rod portion (5b) extends out of the ball head shell (4) through the upper opening (4b), a dust cover (6) is arranged between the rod part (5b) and the ball head shell (4), a ball head cover (7) is fixed at the lower opening (4c) on the ball head shell (4), a lower ball seat (8) is arranged between the ball head cover (7) and the ball head part (5a), the ball head cover is characterized in that a spring (9) is arranged between the lower ball seat (8) and the ball head cover (7), a retaining shoulder (4d) is arranged on the cavity wall surface at the top of the installation cavity (4a), an upper ball seat (10) is arranged between the retaining shoulder (4d) and the lower ball seat (8) in the installation cavity (4a), the upper ball seat (10) is sleeved outside the ball head part (5a), the top surface of the upper ball seat (10) is abutted against the retaining shoulder (4d), the outer side surface of the ball head part (5a) is abutted against the upper ball seat (10) and the lower ball seat (8), and an oil storage gap (11) is arranged between the upper ball seat (10) and the lower ball seat (, the oil storage gap (11) is filled with lubricating grease.

2. The control arm assembly according to claim 1, characterized in that the upper ball seat (10) is provided with a plurality of upper longitudinal oil grooves (10a) on the side abutting against the ball head portion (5a), the upper longitudinal oil grooves (10a) are communicated with the oil storage gap (11), the lower ball seat (8) is provided with a plurality of lower longitudinal oil grooves (8a) on the side abutting against the ball head portion (5a), and the lower longitudinal oil grooves (8a) are communicated with the oil storage gap (11).

3. The control arm assembly according to claim 2, characterized in that the lower ball seat (8) is provided with a through oil through hole (8b) on the bottom surface, the lower longitudinal oil groove (8a) is communicated with the oil through hole (8b), the ball head cover (7) is provided with a threaded hole (7a), and an oil nozzle (12) is screwed at the threaded hole (7 a).

4. The control arm assembly according to any one of claims 1 to 3, wherein a connecting cylinder (1b) is arranged at the upper end of the arm body (1), the ball head housing (4) is inserted into the connecting cylinder (1b), a plurality of anti-slip strips (4e) are circumferentially distributed on the outer side surface of the ball head housing (4), the anti-slip strips (4e) are matched and fixed with the inner side surface of the connecting cylinder (1b), a retaining ring (4f) and an annular groove (4g) are further arranged on the outer side surface of the ball head housing (4) and located at two ends of the connecting cylinder (1b), respectively, a retaining ring (14) is fixed in the annular groove (4g), and two ends of the connecting cylinder (1b) abut against the retaining ring (4f) and the retaining ring (14) respectively.

5. The control arm assembly according to any one of claims 1 to 3, wherein a ball pin sleeve (13) made of polyurethane is sleeved and fixed on the rod portion (5b), the ball pin sleeve (13) is positioned on the inner side of the dust cover (6), and a convex ring (13a) is arranged on the outer side surface of the top of the ball pin sleeve (13).

6. A control arm assembly according to any one of claims 1-3, characterised in that the spring (9) is a disc spring.

7. The control arm assembly according to any one of claims 1 to 3, wherein the wall surface of the mounting chamber (4a) at the oil storage gap (11) has an inclined surface (4h) that is inclined, and the inclined surface (4h) faces the lower ball seat (8).

8. Control arm assembly according to any of claims 1-3, characterized in that a ridge (1c) is arranged on the front side of the arm body (1) between the ball head assembly (2) and the through hole (1 a).