CN214096619U

CN214096619U - TOPMOUNT structure for adjustment

Info

Publication number: CN214096619U
Application number: CN202023127857.XU
Authority: CN
Inventors: 司先军; 姜海波; 蔡京亚; 吴罡
Original assignee: Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-08-31
Anticipated expiration: 2030-12-23

Abstract

The utility model aims at providing a conveniently dismantle TOPMOUNT structure for timing of changing, including the casing, the protruding stretch of the inner circle of inner chamber middle-end of casing is provided with the retaining ring, is provided with rubber bush in the inner chamber of retaining ring top, and rubber bush's lower terminal surface supports with the retaining ring upper ring face and leans on, is provided with the internal thread on the shells inner wall of rubber bush top, is provided with the external screw thread on the apron, apron and shells inner wall threaded connection and compress tightly rubber bush's up end. In the scheme, the rubber bushing and the shell are connected by the thread pair instead of the traditional press-fitting rotary riveting structure, the rubber bushings with different hardness and rigidity are only needed to be provided in the actual adjusting process, the TOPMOUNT assembly is not needed, the adjusting cost of the whole vehicle is saved, and the adjusting efficiency is improved.

Description

TOPMOUNT structure for adjustment

Technical Field

The utility model relates to an automotive suspension system technical field, concretely relates to TOPMOUNT structure for timing.

Background

In the suspension structure of the automobile, a TOPMOUNT (mounting and connecting structure of the upper end of a sliding column) is adopted to connect a shock absorber and a spring to the automobile body. The role of TOPMOUNT is: 1. load bearing, 2, damping of high frequency vibrations above 30Hz which are not filtered by the tire, damper and spring system, 3, control of body roll. In the prior art, the structure of the TOPMOUNT is shown in figure 1, and comprises a shell 1, and a rubber bushing 2 is screwed in an inner cavity of the shell 1 and is pressed and fixed through a cover plate 3. The rubber bushing 2 has great influence on the driving comfort and NVH of the automobile, the bushing structure generally comprises an outer sleeve, an inner sleeve and middle rubber, and the rubber has different hardness and rigidity characteristics and influences the performance of the whole automobile; and the whole vehicle performance has different requirements on the rigidity of the rubber bushing 2, and different vibration isolation rates have larger influence on the driving comfort of the whole vehicle. In the operation and stability adjustment process of the whole vehicle, the rubber bushings 2 with different performance parameters need to be matched and verified, the TOPMOUNT assemblies with different performance parameters need to be disassembled and replaced in the traditional adjustment process, and the rubber bushings 2 are press-fitted and screwed in the shell 1, so the disassembly operation is very complicated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a convenient TOPMOUNT structure for timing of dismantling change.

In order to achieve the above object, the utility model discloses an among the technical scheme be: the utility model provides a TOPMOUNT structure for timing, includes the casing, and the protruding retaining ring that stretches of the interior circle of inner chamber middle-end of casing, be provided with rubber bush in the inner chamber of retaining ring top, rubber bush's lower terminal surface supports with the retaining ring upper ring face and leans on, is provided with the internal thread on the shells inner wall of rubber bush top, is provided with the external screw thread on the apron, apron and shells inner wall threaded connection and compress tightly rubber bush's up end.

In the scheme, the rubber bushing and the shell are connected by the thread pair instead of the traditional press-fitting rotary riveting structure, the rubber bushings with different hardness and rigidity are only needed to be provided in the actual adjusting process, the TOPMOUNT assembly is not needed, the adjusting cost of the whole vehicle is saved, and the adjusting efficiency is improved.

Drawings

Figure 1 is a cross-sectional view of a prior art TOPMOUNT;

figure 2 is a top view of a TOPMOUNT of the present invention;

fig. 3 is a cross-sectional view of fig. 2.

Detailed Description

As shown in fig. 2 and 3, a topmotend structure for adjustment includes a housing 10, a retainer ring 11 is convexly provided at the middle end of an inner cavity of the housing 10 toward an inner ring, a rubber bushing 20 is provided in the inner cavity above the retainer ring 11, a lower end face of the rubber bushing 20 abuts against an upper ring face of the retainer ring 11, an inner thread is provided on an inner wall of the housing 10 above the rubber bushing 20, an outer thread is provided on a cover plate 30, and the cover plate 30 is in threaded connection with the inner wall of the housing 10 and compresses an upper end face of the rubber bushing 20. During installation, the rubber bushing 20 is firstly installed in the shell 10, then the cover plate 30 is in threaded connection with the shell 10, the traditional press-fitting and spin-riveting structure of the rubber bushing 20 and the shell 10 is changed into threaded pair connection, only the rubber bushing 20 with different hardness and rigidity needs to be provided in the actual adjusting process, a TOPMOUNT assembly does not need to be provided, the adjusting cost of the whole automobile is saved, and the adjusting efficiency is improved.

The apron 30 include clamp plate 31, the through-hole 32 that supplies the piston rod to pass is seted up at the middle part of clamp plate 31, the lower face downwardly extending of clamp plate 31 has lower connecting pipe 33, the up end of interior sleeve pipe 21 of rubber bush 20 is compressed to the lower terminal surface of connecting pipe 33, the last face of clamp plate 31 upwards extends has last connecting pipe 34, the outer wall of going up connecting pipe 34 is the hexagonal, conveniently twist with the instrument and move apron 30, realize apron 30's installation and dismantlement, lower connecting pipe 33, the tube core of going up connecting pipe 34 and the hole core collineation of through-hole 32, ensure that the piston rod can be put into smoothly.

The inner wall of the shell 10 at the junction of the cover plate 30 and the rubber bushing 20 is provided with a step 12, and the internal thread is arranged on the inner wall of the shell 10 above the step 12.

Since the inner cavity below the retainer ring 11 is used for installing the buffer block, the contour of the inner cavity below the retainer ring 11 is corrugated and is matched with the contour of the upper part of the buffer block.

Further, the rubber bushing 20 comprises an inner sleeve 21 and an outer sleeve 22, the inner and

outer sleeves

21, 22 are vulcanized into a whole through rubber 23, and the inner and

outer sleeves

21, 22 and the rubber 23 are mounted and dismounted as a whole.

The inner and

outer sleeves

21, 22 are eccentrically arranged, and the purpose of this is to increase the thickness of the rubber 23 in the direction of load, allowing for torsional movement, with the axis of the inner cavity below the retainer 11 being collinear with the axis of the through bore 32 and the inner sleeve 21.

In order to be installed and fixed with the vehicle body, a flange 13 is arranged on the outer wall of the shell 10, the disc surface of the flange 13 is perpendicular to the axial direction of the

shell

10, and 3 screws 14 for connecting with the vehicle body are arranged on the flange 13 at intervals along the circumferential direction.

Claims

1. The utility model provides a TOPMOUNT structure is used in timing, includes casing (10), and the inner chamber middle-end of casing (10) is provided with retaining ring (11) to the protruding stretch of inner circle, is provided with rubber bush (20) in the inner chamber of retaining ring (11) top, and the lower terminal surface and retaining ring (11) upper ring face of rubber bush (20) support and lean on its characterized in that: an internal thread is arranged on the inner wall of the shell (10) above the rubber bushing (20), an external thread is arranged on the cover plate (30), and the cover plate (30) is in threaded connection with the inner wall of the shell (10) and compresses the upper end face of the rubber bushing (20).

2. The TOPMOUNT structure for alignment according to claim 1, wherein: apron (30) including clamp plate (31), through-hole (32) that supply the piston rod to pass are seted up at the middle part of clamp plate (31), the lower face downwardly extending of clamp plate (31) has lower connecting pipe (33), the up end of interior sleeve pipe (21) of rubber bush (20) is compressed to the lower terminal surface of connecting pipe (33), the last face of clamp plate (31) upwards extends has last connecting pipe (34), the outer wall of going up connecting pipe (34) is the hexagon, lower connecting pipe (33), the tube core of going up connecting pipe (34) and the hole core collineation of through-hole (32).

3. The TOPMOUNT structure for alignment according to claim 2, wherein: the inner wall of the shell (10) at the junction of the cover plate (30) and the rubber bushing (20) is provided with a step (12), and the internal thread is arranged on the inner wall of the shell (10) above the step (12).

4. The TOPMOUNT structure for alignment according to claim 1, wherein: the contour of the inner cavity below the retainer ring (11) is in a corrugated shape which is matched with the contour of the upper part of the buffer block.

5. The TOPMOUNT structure for alignment according to claim 2, wherein: the rubber bushing (20) comprises an inner sleeve (21) and an outer sleeve (22), and the inner sleeve (21) and the outer sleeve (22) are vulcanized into a whole through rubber (23).

6. The TOPMOUNT structure for alignment according to claim 5, wherein: the inner sleeve (21) and the outer sleeve (22) are eccentrically arranged, and the shaft core of the inner cavity below the retainer ring (11) is collinear with the shaft core of the through hole (32) and the inner sleeve (21).

7. The TOPMOUNT structure for alignment according to claim 1, wherein: the outer wall of the shell (10) is provided with a flange (13), the disc surface of the flange (13) is perpendicular to the axial direction of the shell (10), and the flange (13) is provided with 3 screws (14) used for being connected with a vehicle body at intervals along the circumferential direction.