CN111075876B

CN111075876B - Rubber shock absorber for automobile

Info

Publication number: CN111075876B
Application number: CN201911354961.1A
Authority: CN
Inventors: 陈建会; 陈中敢
Original assignee: Zhejiang Shitai Industrial Co ltd
Current assignee: Zhejiang Shitai Industrial Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2021-10-12
Anticipated expiration: 2039-12-25
Also published as: CN111075876A

Abstract

The invention relates to the field of shock absorbers, and discloses an automobile rubber shock absorber which comprises a piston rod (1), a first shell (2) and a second shell (3), wherein the first shell (2) is arranged outside the second shell (3) in a sliding manner, a first rubber buffer part (22) and a second rubber buffer part (23) are arranged in a cavity (21), the second rubber buffer part (23) comprises a first upper layer rubber (231), a first lower layer rubber (232) and a first middle layer rubber (233), a fixing sleeve (31) is arranged in the second shell (3), the bottom of the piston rod (1) penetrates through the top of the second shell (3) and extends into the second cavity (32), a rubber buffer block (34) is further arranged at the bottom of the second cavity (32), and a rubber buffer bottom (35) is fixed below the rubber buffer block (34). The dust does not have too big influence to rubber shock absorber's effect, and the bumper shock absorber has good shock attenuation effect, has durable characteristics, and car rubber ware has adopted the multilayer linkage shock attenuation design, has improved the shock attenuation effect.

Description

Rubber shock absorber for automobile

Technical Field

The invention relates to the field of shock absorbers, in particular to an automobile rubber shock absorber.

Background

Along with the improvement of the quality of life, more and more people need to take comfortable vehicles, in order to increase the comfort of the vehicles, all parts of the side wall and the chassis of the automobile need to be provided with shock absorbers to realize shock absorption and noise reduction, the shock absorbers are mainly used for inhibiting the shock generated when the springs rebound after absorbing shock and the impact from the road surface, when the springs pass through the uneven road surface, although the shock absorbing springs can filter the shock on the road surface, the springs can still reciprocate, the shock absorbers can effectively inhibit the spring from jumping, the shock absorbers can bring too large resistance to prevent the springs from normally working, the shock absorbers of ordinary automobiles are hydraulic shock absorbers and are arranged at one end of an oil storage cylinder, when a piston rod moves downwards, the surface of the piston rod can be adhered with particles or dust to enter the shock absorbers, the influence on the hydraulic shock absorbers is large, and the maintenance is often needed. Therefore, the rubber damper is provided, dust does not have great influence on the effect of the rubber damper, the damper has a good damping effect and has the advantage of durability, and the automobile rubber damper adopts a multi-layer linkage damping design and improves the damping effect. The dust does not have too big influence to rubber shock absorber's effect, and the bumper shock absorber has good shock attenuation effect, has durable characteristics, and car rubber ware has adopted the multilayer linkage shock attenuation design, has improved the shock attenuation effect.

Disclosure of Invention

The invention provides an automobile rubber shock absorber aiming at the defect of large influence of dust particles in the prior art.

In order to solve the technical problem, the invention is solved by the following technical scheme:

the automobile rubber shock absorber comprises a piston rod, a first shell and a second shell, wherein the first shell is arranged outside the second shell in a sliding mode, an inner cavity of the first shell is set to be a first cavity, a first rubber buffer part and a second rubber buffer part are arranged in the first cavity, the first rubber buffer part is cylindrical, the outer surface of the first rubber buffer part is fixedly connected with the first shell, the first rubber buffer part comprises more than three rubber layers, first rubber convex rings are arranged on the rubber layer at the top layer and the rubber layer at the bottom layer, a first round hole is formed in the middle of the first rubber buffer part, and the piston rod is fixedly connected with the first rubber buffer part through the first round hole; the second rubber buffer part comprises first upper rubber, first lower rubber and first middle rubber, the first upper rubber and the first lower rubber are fixedly connected with the first shell, a first slide rail is arranged between the first upper rubber and the first lower rubber and fixed on the inner wall of the first shell, the first middle rubber slides on the first slide rail, the top of the first upper rubber and the bottom of the first lower rubber are both arc-shaped, a second round hole for a piston rod to pass through is arranged in the middle of the second rubber buffer part, the piston rod is fixedly connected with the second rubber buffer part through the second round hole, and gaps are reserved between the first upper rubber and the first lower rubber and between the first middle rubber and the first upper rubber; the first rubber buffer part comprises more than three rubber layers, when the piston rod contacts with a vibration target to move downwards, the piston rod is fixedly connected with the first shell, the first shell and the second shell move relatively, the first rubber buffer part is also fixedly connected with the piston rod, the first rubber buffer part firstly vibrates downwards when vibrating, the first rubber convex ring on the first rubber buffer part is in point contact with the second rubber buffer part, the first rubber convex ring has a damping effect and transmits the vibration to the second rubber buffer part, the first upper rubber layer of the second rubber buffer part receives the vibration of the first rubber convex ring, and the first middle layer rubber is in fixed contact with the piston rod, so that when the piston rod vibrates, the first middle layer and the first slide rail move relatively, and a cavity between the first middle layer and the first slide rail has a good buffering effect.

The top of the second shell is fixed with at least one second rubber convex ring, the second shell is internally provided with a fixed sleeve, an inner cavity defined by the fixed sleeve and the second shell is set as a second cavity, the bottom of the piston rod penetrates through the top of the second shell and extends into the second cavity, a third rubber buffer part is arranged in the second cavity and comprises a second upper layer rubber, a second lower layer rubber and a second middle layer rubber, the second upper layer rubber and the second lower layer rubber are fixedly connected with the second shell, a second slide rail is arranged between the second upper layer rubber and the second lower layer rubber and fixed on the inner wall of the second shell, the second middle layer rubber slides on the second slide rail, the top of the second upper layer rubber and the bottom of the second lower layer rubber are both arc-shaped, gaps are reserved between the second upper layer rubber and the second lower layer rubber, and the bottom of the piston rod is provided with the third rubber convex ring, the third rubber convex ring is positioned above the third rubber buffer part; the second rubber bulge loop at second casing top and the first lower rubber contact of second rubber buffer, first lower rubber passes to the second casing with partial vibration through the second rubber bulge loop, the third rubber bulge loop of piston rod bottom contacts and conducts the vibration with third rubber buffer when the vibration, third rubber buffer and second casing will vibrate and pass to fixed cover, fixed cover drives the second slide rail, it has the shock attenuation effect to produce relative slip between second slide rail and the second intermediate level rubber.

The bottom of the second cavity is also provided with a rubber buffer block, the rubber buffer bottom is fixed below the rubber buffer block, the rubber buffer block comprises a fixing part, the fixing part is fixedly connected with the rubber buffer bottom, the fixing part extends upwards in an inclined way to form a first circular platform ring, the first circular platform ring extends horizontally to form a first cylindrical ring, the first cylindrical ring extends upwards in an inclined way to form a second circular platform ring, the second circular platform ring is bent upwards to form a second cylindrical ring, the second cylindrical ring is fixedly connected with the second shell, the second circular platform ring is fixedly connected with the bottom of the fixed sleeve, more than two fourth rubber convex rings are fixed on the first cylindrical ring, and the fixing part, the first circular platform ring and the first cylindrical ring are fixed on the first cylindrical ring, the second circular table ring and the second cylindrical ring are integrally formed, the rubber buffer bottom comprises a cylinder and a circular table, the cylinder and the circular table are integrally formed, the cylinder is fixed above the circular table, and the joint between the cylinder and the circular table is fixedly connected with the second shell. The rubber buffer block has good elasticity, the second lower rubber layer is in contact with the fourth rubber convex ring, the fixed sleeve is in contact with the second circular truncated cone ring, the second circular truncated cone ring is downwards extruded when the fixed sleeve vibrates, the fixed part is fixed at the bottom of the rubber buffer because the second cylindrical ring is fixed on the second shell, and the fixed sleeve extrudes the second circular truncated cone ring and has a good damping effect.

Preferably, the bottom of the second casing is provided with a reinforcing plate for reinforcing the second casing and the bottom of the rubber buffer. The reinforcing plate reinforces the connection of the second shell and the rubber buffer bottom.

Preferably, at least one connecting plate is fixed on the inner surface of the fixing sleeve, the connecting plate is parallel to the horizontal plane, and a hole for passing through the piston rod is formed in the center of the connecting plate. The piston rod penetrates through the connecting plate and is fixed with the connecting plate, the outer surface of the connecting plate is fixed with the fixed connecting plate of the fixed plate, and the inner surface of the connecting plate is fixedly connected with the piston rod.

Preferably, the top end of the piston rod is fixedly connected with the first housing. The top end of the piston rod is fixedly connected with the first shell, when the rubber shock absorber receives vibration, the vibration is conducted through the piston rod, and the buffering effect is achieved through buffering at the positions of the first shell, the second shell and the like.

Due to the adoption of the technical scheme, the invention has the remarkable technical effects that: the dust does not have too big influence to rubber shock absorber's effect, and the bumper shock absorber has good shock attenuation effect, has durable characteristics, and car rubber ware has adopted the multilayer linkage shock attenuation design, has improved the shock attenuation effect.

Drawings

Fig. 1 is a schematic structural diagram of the invention.

Fig. 2 is a partially enlarged view of the rubber buffer block.

The names of the parts indicated by the numerical references in the above figures are as follows: the rubber buffer structure comprises a piston rod 1, a piston rod 2, a first shell, a second shell 3, a third rubber convex ring 11, a first cavity 21, a first rubber buffer part 22, a first rubber buffer part 23, a second rubber buffer part 31, a fixing sleeve 32, a second cavity 33, a third rubber buffer part 34, a rubber buffer block 35, a rubber buffer bottom 36, a second rubber convex ring 37, a reinforcing plate 221, a first rubber convex ring 231, a first upper rubber layer 232, a first lower rubber layer 233, a first middle rubber layer 234, a first sliding rail 311, a connecting plate 331, a second upper rubber layer 332, a second lower rubber layer 333, a second middle rubber layer 334, a second sliding rail 341, a fixing part 342, a first circular platform ring 343, a first circular column ring 344, a second circular platform ring 345, a second circular column ring 346, and a fourth rubber convex ring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

An automobile rubber shock absorber is shown in fig. 1-2 and comprises a piston rod 1, a first shell 2 and a second shell 3, wherein the first shell 2 is arranged outside the second shell 3 in a sliding manner, an inner cavity of the first shell 2 is set as a first cavity 21, a first rubber buffer part 22 and a second rubber buffer part 23 are arranged in the first cavity 21, the first rubber buffer part 22 is cylindrical, the outer surface of the first rubber buffer part 22 is fixedly connected with the first shell 2, the first rubber buffer part 22 comprises more than three rubber layers, wherein a first rubber convex ring 221 is arranged on each of the top rubber layer and the bottom rubber layer, a first round hole is arranged in the middle of the first rubber buffer part 22, and the piston rod 1 is fixedly connected with the first rubber buffer part 22 through the first round hole; the second rubber buffer part 23 comprises a first upper layer rubber 231, a first lower layer rubber 232 and a first middle layer rubber 233, the first upper layer rubber 231 and the first lower layer rubber 232 are fixedly connected with the first shell 2, a first sliding rail 234 is arranged between the first upper layer rubber 231 and the first lower layer rubber 232, the first sliding rail 234 is fixed on the inner wall of the first shell 2, the first middle layer rubber 233 slides on the first sliding rail 234, the top of the first upper layer rubber 231 and the bottom of the first lower layer rubber 232 are both arc-shaped, a second round hole for the piston rod 1 to pass through is arranged in the middle of the second rubber buffer part 23, the piston rod 1 is fixedly connected with the second rubber buffer part 23 through the second round hole, and gaps are formed between the first upper layer rubber 231 and the first lower layer rubber 232 and the first middle layer rubber 233;

at least one second rubber convex ring 36 is fixed on the top of the second shell 3, a fixed sleeve 31 is arranged in the second shell 3, an inner cavity enclosed by the fixed sleeve 31 and the second shell 3 is set as a second cavity 32, the bottom of the piston rod 1 passes through the top of the second shell 3 and extends into the second cavity 32, a third rubber buffer 33 is arranged in the second cavity 32, the third rubber buffer 33 comprises a second upper rubber 331, a second lower rubber 332 and a second middle rubber 333, the second upper rubber 331 and the second lower rubber 332 are fixedly connected with the second shell 3, a second sliding rail 334 is arranged between the second upper rubber 331 and the second lower rubber 332, the second sliding rail 334 is fixed on the inner wall of the second shell 3, the second middle rubber 333 slides on the second sliding rail 334, the top of the second upper rubber 331 and the bottom of the second lower rubber 332 are both arc-shaped, gaps are reserved between the second upper rubber 331, the second lower rubber 332 and the second middle rubber 333, the bottom of the piston rod 1 is provided with a third rubber convex ring 11, and the third rubber convex ring 11 is positioned above the third rubber buffer part 33;

the bottom of the second cavity 32 is further provided with a rubber buffer block 34, a rubber buffer bottom 35 is fixed below the rubber buffer block 34, the rubber buffer block 34 comprises a fixing portion 341, the fixing portion 341 is fixedly connected with the rubber buffer bottom 35, the fixing portion 341 extends obliquely upward to form a first circular table ring 342, the first circular table ring 342 extends horizontally to form a first cylindrical ring 343, the first cylindrical ring 343 extends obliquely upward to form a second circular table ring 344, the second circular table ring 344 is bent upward to form a second cylindrical ring 345, the second cylindrical ring 345 is fixedly connected with the second shell 3, the second circular table ring 344 is fixedly connected with the bottom of the fixing sleeve 31, two or more fourth rubber convex rings 346 are fixed on the first cylindrical ring 343, the fixing portion 341, the first circular table ring 342, the first cylindrical ring 343, the second circular table ring 344 and the second cylindrical ring 345 are integrally formed, the rubber buffer bottom 35 comprises a cylinder and a circular table, the cylinder and the circular table are integrally formed, the cylinder is fixed above the circular truncated cone, and the joint between the cylinder and the circular truncated cone is fixedly connected with the second shell 3;

the bottom of the second housing 3 is provided with a reinforcing plate 37 for reinforcing the second housing 3 and the rubber buffer bottom 35.

At least one connecting plate 311 is fixed on the inner surface of the fixing sleeve 31, the connecting plate 311 is parallel to the horizontal plane, and a hole for passing through the piston rod 1 is formed in the center of the connecting plate 311.

The top end of the piston rod 1 is fixedly connected with the first housing 2.

In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.

Claims

1. Automobile rubber shock absorber ware, including piston rod (1), first casing (2) and second casing (3), its characterized in that: the first shell (2) is arranged outside the second shell (3) in a sliding mode, an inner cavity of the first shell (2) is set to be a first cavity (21), a first rubber buffer part (22) and a second rubber buffer part (23) are arranged in the first cavity (21), the first rubber buffer part (22) is cylindrical, the outer surface of the first rubber buffer part (22) is fixedly connected with the first shell (2), the first rubber buffer part (22) comprises more than three rubber layers, a first rubber convex ring (221) is arranged on each of the top rubber layer and the bottom rubber layer, a first round hole is formed in the middle of the first rubber buffer part (22), and the piston rod (1) is fixedly connected with the first rubber buffer part (22) through the first round hole; the second rubber buffer part (23) comprises a first upper layer rubber (231) and a first lower layer rubber (232), the piston rod comprises first middle layer rubber (233), wherein the first upper layer rubber (231) and the first lower layer rubber (232) are fixedly connected with the first shell (2), a first sliding rail (234) is arranged between the first upper layer rubber (231) and the first lower layer rubber (232), the first sliding rail (234) is fixed on the inner wall of the first shell (2), the first middle layer rubber (233) slides on the first sliding rail (234), the top of the first upper layer rubber (231) and the bottom of the first lower layer rubber (232) are both arc-shaped, a second round hole for the piston rod (1) to pass through is formed in the middle of the second rubber buffer part (23), the piston rod (1) is fixedly connected with the second rubber buffer part (23) through the second round hole, and gaps are formed between the first upper layer rubber (231) and the first lower layer rubber (232) and the first middle layer rubber (233);

the top of the second shell (3) is fixed with at least one second rubber convex ring (36), the second shell (3) is internally provided with a fixed sleeve (31), an inner cavity formed by the fixed sleeve (31) and the second shell (3) is set as a second cavity (32), the bottom of the piston rod (1) penetrates through the top of the second shell (3) and extends into the second cavity (32), the second cavity (32) is internally provided with a third rubber buffer part (33), the third rubber buffer part (33) comprises second upper rubber (331), second lower rubber (332) and second middle rubber (333), the second upper rubber (331) and the second lower rubber (332) are fixedly connected with the second shell (3), a second sliding rail (334) is arranged between the second upper rubber (331) and the second lower rubber (332), and the second sliding rail (334) is fixed on the inner wall of the second shell (3), the second middle layer rubber (333) slides on the second sliding rail (334), the top of the second upper layer rubber (331) and the bottom of the second lower layer rubber (332) are both arc-shaped, gaps are reserved between the second upper layer rubber (331) and the second lower layer rubber (332) and the second middle layer rubber (333), the bottom of the piston rod (1) is provided with a third rubber convex ring (11), and the third rubber convex ring (11) is positioned above the third rubber buffer part (33);

the bottom of the second cavity (32) is further provided with a rubber buffer block (34), a rubber buffer bottom (35) is fixed below the rubber buffer block (34), the rubber buffer block (34) comprises a fixing portion (341), the fixing portion (341) is fixedly connected with the rubber buffer bottom (35), the fixing portion (341) extends upwards in an inclined mode to form a first circular table ring (342), the first circular table ring (342) extends horizontally to form a first cylindrical ring (343), the first cylindrical ring (343) extends upwards in an inclined mode to form a second circular table ring (344), the second circular table ring (344) is bent upwards to form a second cylindrical ring (345), the second cylindrical ring (345) is fixedly connected with the second shell (3), the second circular table ring (344) is fixedly connected with the bottom of the fixed sleeve (31), more than two fourth rubber convex rings (346) are fixed on the first circular table ring (343), the fixing portion (341), the first circular table ring (342) and the rubber buffer bottom (35) are fixed, and the fixing portion (341) is formed by the rubber buffer ring (342), The rubber buffer bottom (35) comprises a cylinder and a circular truncated cone, the cylinder and the circular truncated cone are integrally formed, the cylinder is fixed above the circular truncated cone, and the joint between the cylinder and the circular truncated cone is fixedly connected with the second shell (3); the bottom of the second shell (3) is provided with a reinforcing plate (37) used for reinforcing the second shell (3) and the rubber buffer bottom (35).

2. The rubber bumper of claim 1, wherein: at least one connecting plate (311) is fixed on the inner surface of the fixed sleeve (31), the connecting plate (311) is parallel to the horizontal plane, and a hole for passing through the piston rod (1) is formed in the center of the connecting plate (311).

3. The rubber bumper of claim 1, wherein: the top end of the piston rod (1) is fixedly connected with the first shell (2).