CN216768184U - Air spring shock absorber - Google Patents

Abstract

The application provides an air spring shock absorber, which comprises an outer cylinder body, an inner cylinder body, a first end cover, a second end cover, a piston rod and an air bag, wherein the air bag is annular and is arranged around the outer cylinder body; in the course of the work, aerify the gasbag from the air cock department, the gasbag aerifys back volume increase, it is articulated with the axletree with the one end of keeping away from the piston rod of outer cylinder body, it is articulated with vehicle chassis with the one end that the outer cylinder body was kept away from to the piston rod, simultaneously vehicle chassis presses on the gasbag along the axial of outer cylinder body, the supporting ring supports the gasbag, when the piston rod cushions the shock attenuation to vehicle chassis, the gasbag is to vehicle chassis further buffering shock attenuation, absorb near damping spring's vibrations, make other damping spring work more steady.

Description

Air spring shock absorber

Technical Field

The application relates to the technical field of shock absorbers, in particular to an air spring shock absorber.

Background

The bumper shock absorber that the car was used mainly is to the chassis of car shock attenuation, and the bumper shock absorber among the prior art includes cylinder and spring usually, fixedly connected with spring holder on the outer wall of cylinder, and the spring housing is on the cylinder, and wherein one end and the spring seat of spring are connected, and the other end of spring is connected with the chassis of car, drives the piston rod and the spring motion of cylinder when the chassis of car vibrates from top to bottom, and the piston rod and the spring of cylinder carry out the buffering shock attenuation jointly to the chassis of car.

However, during the operation of the spring, the spring itself vibrates, and the severe vibration can cause the central axis of the spring to bend or incline, resulting in the reduction of the damping performance.

Disclosure of Invention

The application provides an air spring bumper shock absorber can carry out the vibrations of shock attenuation absorbing spring simultaneously to the car.

In order to achieve the above purpose, the embodiments of the present application propose the following technical solutions:

an air spring shock absorber comprises an outer cylinder body, an inner cylinder body, a first end cover, a second end cover and a piston rod, the inner cylinder body is positioned inside the outer cylinder body, the first end cover and the second end cover are respectively positioned at two ends of the inner cylinder body, the first end cover is fixedly connected with the end part of the inner cylinder body in a sealing way, the second end cover is fixedly connected with the end part of the inner cylinder body in a sealing way, the two ends of the outer cylinder body are respectively fixedly connected with the first end cover and the second end cover in a sealing way, one end of the piston rod is positioned inside the inner cylinder body, the other end of the piston rod is positioned outside the outer cylinder body, the first end cover is sleeved on the piston rod and is in sealed sliding connection with the piston rod, one end of the piston rod, which is positioned in the cylinder body, is fixedly connected with a piston, and the piston is in sealed sliding connection with the inner wall of the inner cylinder body; the piston rod divides the inner space of the inner cylinder into a first inner cavity and a second inner cavity, the first inner cavity is positioned between the first end cover and the piston, the second inner cavity is positioned between the second end cover and the piston, and an outer cavity is formed between the outer side surface of the inner cylinder and the inner side surface of the outer cylinder; a first channel is arranged on the first end cover, one end of the first channel is communicated with the first inner cavity, and the other end of the first channel is communicated with the outer cavity; a second channel is arranged on the second end cover, one end of the second channel is communicated with the second inner cavity, and the other end of the second channel is communicated with the outer cavity; the air spring shock absorber further comprises an air bag, the air bag is annular, the air bag surrounds the outer cylinder body, the inner ring surface of the air bag is fixedly connected with the outer side face of the outer cylinder body, and the air bag is connected with an air faucet.

In some embodiments, the air spring damper further comprises a support ring, the support ring is sleeved on the outer cylinder body, the inner side surface of the support ring is fixedly connected with the outer side surface of the outer cylinder body, and the air bag is abutted against the end surface of the support ring along the axial direction of the outer cylinder body; the maximum diameter of the inflated balloon is larger than the maximum diameter of the support ring.

In some embodiments, the air tap is located the gasbag is close to the one side of support ring, the gasbag be close to the one side of support ring with support ring fixed connection, the air tap runs through the support ring along the direction that is on a parallel with the outer cylinder body axis, the port that the one end of gasbag was kept away from to the air tap is located the support ring is kept away from one side of support ring.

In some embodiments, the inner side edge of one end of the outer cylinder body close to the first end cover is integrally connected with a bent edge, the first end cover comprises a first cushion block, the first cushion block has elasticity, the first cushion block is located between the end face of the inner cylinder body and the bent edge, one end of the first cushion block is in press fit with the bent edge, and the other end of the first cushion block is in press fit with the end face of the inner cylinder body.

In some embodiments, the first end cover further includes a first sealing block, the first sealing block has elasticity, the first sealing block is integrally connected with the first cushion block, the first sealing block is located at one end of the first cushion block close to the inner cylinder body, the first sealing block is located at the center of the first cushion block, the first sealing block is inserted into the inner cylinder body, and an outer wall of the first sealing block is in press fit with an inner side surface of the inner cylinder body.

In some embodiments, a sealing plate is integrally connected to an inner side edge of one end of the outer cylinder body close to the second end cover, the second end cover includes a second cushion block, the second cushion block has elasticity, the second cushion block is located between the end face of the inner cylinder body and the sealing plate, one end of the second cushion block is in press fit with the sealing plate, and the other end of the second cushion block is in press fit with the end face of the inner cylinder body.

In some embodiments, the second end cap further includes a second sealing block, the second sealing block has elasticity, the second sealing block is integrally connected to the second cushion block, the second sealing block is located at one end of the second cushion block close to the inner cylinder body, the second sealing block is located at the center of the second cushion block, the second sealing block is inserted into the inner cylinder body, and an outer wall of the second sealing block is in press fit with an inner side surface of the inner cylinder body.

Has the advantages that:

the application provides an air spring bumper shock absorber, in the course of the work, aerify the gasbag from the air cock department, the gasbag aerifys back volume increase, it is articulated with the axletree with the one end of keeping away from the piston rod of outer cylinder body, it is articulated with vehicle chassis with the one end that the outer cylinder body was kept away from to the piston rod, simultaneously vehicle chassis presses on the gasbag along the axial of outer cylinder body, the supporting ring supports the gasbag, when the piston rod cushions the absorbing to vehicle chassis, the gasbag is to vehicle chassis further buffering shock attenuation, absorb near damping spring's the vibrations that produce, make other damping spring work more steady.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural view of an air spring shock absorber of the present embodiment before inflation of the air bag;

FIG. 2 is a schematic diagram of the air spring shock absorber of the present embodiment after the air bag is inflated.

Reference numerals:

101. an outer cylinder body; 102. an inner cylinder body; 103. a first end cap; 104. a second end cap; 105. a piston rod; 106. a piston; 107. an outer cavity; 108. a first channel; 109. a second channel; 110. an air bag; 111. bending edges; 112. a first cushion block; 113. a first seal block; 114. a sealing plate; 115. a second cushion block; 116. a second seal block; 117. a first inner cavity; 118. a second inner cavity; 119. an air tap; 120. and (3) supporting the ring.

Detailed Description

Embodiments of the present application will be described in further detail below with reference to the drawings and examples. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

In the embodiments of the present application, unless otherwise explicitly specified or limited, the first feature "on" or "under" the second feature may be directly contacted with the second feature or indirectly contacted with the second feature through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the terms "a particular example," "one embodiment," "an example," "some embodiments," "some examples," "some embodiments," or "possible embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

As shown in fig. 1 and 2, in an embodiment of the present application, there is provided an air spring shock absorber, including an outer cylinder 101, an inner cylinder 102, the cylinder comprises a first end cover 103, a second end cover 104 and a piston rod 105, wherein the inner cylinder body 102 is positioned inside the outer cylinder body 101, the first end cover 103 and the second end cover 104 are respectively positioned at two ends of the inner cylinder body 102, the first end cover 103 is fixedly connected with the end of the inner cylinder body 102 in a sealing manner, the second end cover 104 is fixedly connected with the end of the inner cylinder body 102 in a sealing manner, two ends of the outer cylinder body 101 are respectively fixedly connected with the first end cover 103 and the second end cover 104 in a sealing manner, one end of the piston rod 105 is positioned inside the inner cylinder body 102, the other end of the piston rod 105 is positioned outside the outer cylinder body 101, the first end cover 103 is sleeved on the piston rod 105, the first end cover 103 is connected with the piston rod 105 in a sealing and sliding manner, one end of the piston rod 105 positioned inside the cylinder body is fixedly connected with a piston 106, and the piston 106 is connected with the inner wall of the inner cylinder body 102 in a sealing and sliding manner; the piston rod 105 divides the inner space of the inner cylinder 102 into a first inner cavity 117 and a second inner cavity 118, the first inner cavity 117 is positioned between the first end cap 103 and the piston 106, the second inner cavity 118 is positioned between the second end cap 104 and the piston 106, and an outer cavity 107 is formed between the outer side surface of the inner cylinder 102 and the inner side surface of the outer cylinder 101; a first channel 108 is arranged on the first end cover 103, one end of the first channel 108 is communicated with the first inner cavity 117, and the other end of the first channel 108 is communicated with the outer cavity 107; a second channel 109 is arranged on the second end cover 104, one end of the second channel 109 is communicated with the second inner cavity 118, and the other end of the second channel 109 is communicated with the outer cavity 107; the air spring shock absorber further comprises an air bag 110, the air bag 110 is annular, the air bag 110 is arranged around the outer cylinder body 101, the inner ring surface of the air bag 110 is fixedly connected with the outer side surface of the outer cylinder body 101, and an air nozzle 119 is connected to the air bag 110.

In some embodiments, the air spring damper further includes a support ring 120, the support ring 120 is sleeved on the outer cylinder 101, an inner side surface of the support ring 120 is fixedly connected with an outer side surface of the outer cylinder 101, and the air bag 110 abuts against an end surface of the support ring 120 along an axial direction of the outer cylinder 101; the maximum diameter of balloon 110 after inflation is greater than the maximum diameter of support ring 120.

In some embodiments, air nozzle 119 is located on a side of air bladder 110 close to support ring 120, a side of air bladder 110 close to support ring 120 is fixedly connected to support ring 120, air nozzle 119 penetrates support ring 120 along a direction parallel to a central axis of outer cylinder 101, and a port of an end of air nozzle 119 away from air bladder 110 is located on a side of support ring 120 away from support ring 120.

In some embodiments, a bent edge 111 is integrally connected to an inner edge of one end of the outer cylinder 101 close to the first end cap 103, the first end cap 103 includes a first cushion block 112, the first cushion block 112 has elasticity, the first cushion block 112 is located between the end surface of the inner cylinder 102 and the bent edge 111, one end of the first cushion block 112 is press-fitted with the bent edge 111, and the other end of the first cushion block 112 is press-fitted with the end surface of the inner cylinder 102.

In some embodiments, the first end cap 103 further includes a first sealing block 113, the first sealing block 113 has elasticity, the first sealing block 113 is integrally connected to the first cushion block 112, the first sealing block 113 is located at an end of the first cushion block 112 close to the inner cylinder 102, the first sealing block 113 is located at the center of the first cushion block 112, the first sealing block 113 is inserted into the inner cylinder 102, and an outer wall of the first sealing block 113 is in press fit with an inner side surface of the inner cylinder 102.

In some embodiments, a sealing plate 114 is integrally connected to an inner edge of one end of the outer cylinder 101 close to the second end cap 104, the second end cap 104 includes a second cushion block 115, the second cushion block 115 has elasticity, the second cushion block 115 is located between the end surface of the inner cylinder 102 and the sealing plate 114, one end of the second cushion block 115 is in press fit with the sealing plate 114, and the other end of the second cushion block 115 is in press fit with the end surface of the inner cylinder 102.

In some embodiments, the second end cap 104 further includes a second sealing block 116, the second sealing block 116 has elasticity, the second sealing block 116 is integrally connected to a second cushion block 115, the second sealing block 116 is located at one end of the second cushion block 115 close to the inner cylinder 102, the second sealing block 116 is located at the center of the second cushion block 115, the second sealing block 116 is inserted into the inner cylinder 102, and an outer wall of the second sealing block 116 is in press fit with an inner side surface of the inner cylinder 102.

The air spring bumper shock absorber that this embodiment provided, in the course of the work, aerify gasbag 110 from air cock 119 department, gasbag 110 aerifys back volume increase, it is articulated with the wheel axle with the one end of keeping away from piston rod 105 of external cylinder body 101, it is articulated with vehicle chassis with the one end of keeping away from external cylinder body 101 of piston rod 105, simultaneously vehicle chassis presses on gasbag 110 along the axial of external cylinder body 101, support ring 120 supports gasbag 110, when piston rod 105 cushions the shock attenuation to vehicle chassis, gasbag 110 further cushions the shock attenuation to vehicle chassis, absorb near shock-absorbing spring's vibrations, make other shock-absorbing spring work more steady.

The above examples are only for explaining the present application and are not intended to limit the present application, and those skilled in the art can make modifications to the embodiments of the present application without inventive contribution as needed after reading the present specification, but are protected by patent laws within the scope of the claims of the present application.

Claims (7)

1. An air spring shock absorber is characterized by comprising an outer cylinder body, an inner cylinder body, a first end cover, a second end cover and a piston rod, wherein the inner cylinder body is positioned inside the outer cylinder body, the first end cover and the second end cover are respectively positioned at two ends of the inner cylinder body, the first end cover is fixedly connected with the end part of the inner cylinder body in a sealing manner, the second end cover is fixedly connected with the end part of the inner cylinder body in a sealing manner, two ends of the outer cylinder body are respectively fixedly connected with the first end cover and the second end cover in a sealing manner, one end of the piston rod is positioned inside the inner cylinder body, the other end of the piston rod is positioned outside the outer cylinder body, the first end cover is sleeved on the piston rod, the first end cover is connected with the piston rod in a sealing and sliding manner, one end of the piston rod positioned inside the cylinder body is fixedly connected with a piston, the piston is in sealed sliding connection with the inner wall of the inner cylinder body;

the piston rod divides the inner space of the inner cylinder into a first inner cavity and a second inner cavity, the first inner cavity is positioned between the first end cover and the piston, the second inner cavity is positioned between the second end cover and the piston, and an outer cavity is formed between the outer side surface of the inner cylinder and the inner side surface of the outer cylinder;

a first channel is arranged on the first end cover, one end of the first channel is communicated with the first inner cavity, and the other end of the first channel is communicated with the outer cavity;

a second channel is arranged on the second end cover, one end of the second channel is communicated with the second inner cavity, and the other end of the second channel is communicated with the outer cavity;

the air spring shock absorber further comprises an air bag, the air bag is annular, the air bag surrounds the outer cylinder body, the inner ring surface of the air bag is fixedly connected with the outer side face of the outer cylinder body, and the air bag is connected with an air faucet.

2. The air spring shock absorber according to claim 1, further comprising a support ring, wherein the support ring is sleeved on the outer cylinder body, the inner side surface of the support ring is fixedly connected with the outer side surface of the outer cylinder body, and the air bag is abutted against the end surface of the support ring along the axial direction of the outer cylinder body; the maximum diameter of the inflated balloon is larger than the maximum diameter of the support ring.

3. The air spring shock absorber of claim 2, wherein said air tap is located on a side of said air bladder near said support ring, a side of said air bladder near said support ring is fixedly connected to said support ring, said air tap extends through said support ring in a direction parallel to a central axis of said outer cylinder, and a port at an end of said air tap remote from said air bladder is located on a side of said support ring remote from said support ring.

4. The air spring shock absorber according to claim 1, wherein a flange is integrally connected to an inner edge of one end of said outer cylinder body adjacent to said first end cap, said first end cap includes a first cushion block, said first cushion block has elasticity, said first cushion block is located between said end surface of said inner cylinder body and said flange, one end of said first cushion block is press-fitted to said flange, and the other end of said first cushion block is press-fitted to said end surface of said inner cylinder body.

5. The air spring shock absorber according to claim 4, wherein the first end cap further comprises a first sealing block, the first sealing block is elastic and integrally connected with the first cushion block, the first sealing block is located at one end of the first cushion block close to the inner cylinder body, the first sealing block is located at the center of the first cushion block, the first sealing block is inserted into the inner cylinder body, and the outer wall of the first sealing block is in press fit with the inner side surface of the inner cylinder body.

6. The air spring shock absorber according to claim 5, wherein a sealing plate is integrally connected to an inner edge of one end of said outer cylinder body close to said second end cap, said second end cap includes a second cushion block having elasticity, said second cushion block is located between an end surface of said inner cylinder body and said sealing plate, one end of said second cushion block is press-fitted to said sealing plate, and the other end of said second cushion block is press-fitted to an end surface of said inner cylinder body.

7. The air spring shock absorber of claim 6, wherein said second end cap further comprises a second sealing block, said second sealing block having elasticity, said second sealing block being integrally connected to said second spacer, said second sealing block being located at an end of said second spacer adjacent to said inner cylinder, said second sealing block being located at a center of said second spacer, said second sealing block being inserted into said inner cylinder, an outer wall of said second sealing block being press-fitted to an inner side of said inner cylinder.

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