CN219692136U - Built-in shock absorber, transmission shaft and vehicle - Google Patents
Built-in shock absorber, transmission shaft and vehicle Download PDFInfo
- Publication number
- CN219692136U CN219692136U CN202320188054.XU CN202320188054U CN219692136U CN 219692136 U CN219692136 U CN 219692136U CN 202320188054 U CN202320188054 U CN 202320188054U CN 219692136 U CN219692136 U CN 219692136U
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- Prior art keywords
- buffer
- mass
- block
- shock absorber
- mass block
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 41
- 230000035939 shock Effects 0.000 title claims abstract description 41
- 230000005540 biological transmission Effects 0.000 title abstract description 21
- 229920001971 elastomer Polymers 0.000 claims abstract description 20
- 239000000806 elastomer Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 6
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 4
- 239000010962 carbon steel Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
Abstract
The utility model discloses a built-in shock absorber, which comprises a mass block and outer liners which are positioned at two sides of the mass block and are symmetrically arranged, wherein an elastomer is arranged between the outer liners and the mass block, a buffer cavity is arranged on the elastomer, the buffer cavity is circumferentially and alternately arranged around the periphery of the mass block, the buffer cavity comprises a first inner wall close to the outer liner side and a second inner wall close to the mass block side, an elastic buffer block is arranged on the first inner wall, the buffer block faces the second inner wall and is reserved with a gap with the second inner wall, the buffer block can limit the radial swing amplitude of the mass block, and the outer liner is pressed close to the mass block in the process of pressing the built-in shock absorber into a transmission shaft tube, and the pressed outer liner drives the buffer block to compress the mass block so as to prevent the outer liner from deforming or even flanging; the outer linings symmetrically arranged on two sides of the mass block can limit the radial movement of the mass block on two sides of the mass block, so that the stability of the shock absorber in working is enhanced, and the shock absorption performance is ensured.
Description
Technical Field
The utility model relates to the technical field of shock absorbers, in particular to a built-in shock absorber, a transmission shaft using the built-in shock absorber and a vehicle using the built-in shock absorber.
Background
The power transmission system is a main noise source and an excitation source of an automobile, and the NVH (Noise, vibration, harshness, namely noise, vibration and harshness) problem of the power transmission system is also an important point and a difficult point of the development of the performance of the whole automobile, wherein the resonance of a transmission shaft is a typical problem, and the vibration of the transmission shaft affects the comfort of the whole automobile and causes the noise in the automobile.
The patent number 201810500405.X discloses a built-in transmission shaft dynamic vibration absorber, which comprises a lining and a mass block positioned on the inner side of the lining, and the resonance frequency achieved by the installation of the vibration absorber in any rotation angle is guaranteed to be the same through a plurality of working areas, so that vibration and noise of a transmission shaft can be effectively absorbed, and the NVH performance of the whole vehicle is obviously improved. However, the lining is easy to deform and even turn-ups during the process of pressing the transmission shaft power vibration absorber into the shaft tube; under the condition that the weight of the mass block is large and the length is long, when the shock absorber rotates at a high speed, the mass block is easy to eccentrically rotate, and the shock absorption performance of the shock absorber is reduced.
Disclosure of Invention
The utility model aims to provide a built-in shock absorber, so as to avoid deformation of the shock absorber in the press mounting process, enhance the stability of the shock absorber in working and ensure the shock absorbing performance.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a built-in shock absorber comprises a mass block and outer liners which are positioned on two sides of the mass block and are symmetrically arranged, an elastomer is arranged between the outer liners and the mass block, and a buffer cavity is formed in the elastomer; the buffer cavities are circumferentially arranged at intervals around the periphery of the mass block and comprise a first inner wall close to the outer lining side and a second inner wall close to the mass block side; the elastic buffer block is arranged on the first inner wall, faces the second inner wall and is reserved with a gap with the second inner wall, and the buffer block is used for limiting the swing amplitude of the mass block in the radial direction.
In one embodiment, the buffer chamber extends in the axial direction of the mass and extends through the elastomer.
In one embodiment, the surface of the buffer block facing the mass is serrated.
In one embodiment, the buffer block is an elastic piece made of rubber material.
In one embodiment, the buffer chambers are arranged in a circumferential array along the axial center of the mass.
In one embodiment, elastic bulges are uniformly distributed along the same circumference of the outer side of the outer liner.
In one embodiment, the mass and the outer liner are coaxially arranged, the mass being cylindrical and the outer liner being annular.
In one embodiment, the outer liner is carbon steel.
Another object of the present utility model is to provide a transmission shaft, in which the inner sleeve of the shaft tube is provided with the built-in damper according to any one of the above.
It is a further object of the present utility model to provide a vehicle comprising a propeller shaft according to the above.
The built-in shock absorber has the beneficial effects that:
the utility model discloses a built-in shock absorber, which comprises a mass block and outer liners which are positioned at two sides of the mass block and are symmetrically arranged, wherein an elastomer is arranged between the outer liners and the mass block, a buffer cavity is arranged on the elastomer, the buffer cavity is circumferentially and alternately arranged around the periphery of the mass block, the buffer cavity comprises a first inner wall close to the outer liner side and a second inner wall close to the mass block side, an elastic buffer block is arranged on the first inner wall, the buffer block faces the second inner wall and is reserved with a gap with the second inner wall, the buffer block can limit the radial swing amplitude of the mass block, and the outer liner is pressed close to the mass block in the process of pressing the built-in shock absorber into a transmission shaft tube, and the pressed outer liner drives the buffer block to compress the mass block so as to prevent the outer liner from deforming or even flanging; the outer linings symmetrically arranged on two sides of the mass block can limit the radial movement of the mass block on two sides of the mass block, so that the stability of the damper in working is enhanced, and the damping performance is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a built-in shock absorber according to a first embodiment of the present utility model;
FIG. 2 is a side view of a built-in shock absorber according to a first embodiment of the present utility model;
fig. 3 is a side view of a built-in shock absorber according to a second embodiment of the present utility model.
The marks in the figure: 1. a mass block; 2. an outer liner; 3. a buffer chamber; 4. a buffer block; 5. and an elastic bulge.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Embodiment one:
referring to fig. 1-2, an embodiment of the utility model discloses a built-in shock absorber, which comprises a mass block 1 and an outer liner 2 which is positioned at two sides of the mass block 1 and is symmetrically arranged, wherein the shape formed by the mass block 1 and the outer liner 2 is dumbbell-shaped as shown in fig. 1, an elastomer is arranged between the outer liner 2 and the mass block 1, a buffer cavity 3 is arranged on the elastomer, the buffer cavity 3 is circumferentially and alternately arranged around the periphery of the mass block 2, the buffer cavity 3 comprises a first inner wall close to the side of the outer liner 2 and a second inner wall close to the side of the mass block 1, an elastic buffer block 4 is arranged on the first inner wall, the buffer block 4 faces the second inner wall and is reserved with a gap with the second inner wall, and the buffer block 4 is used for limiting the radial swing amplitude of the mass block 1. In the process of pressing the built-in shock absorber into the transmission shaft tube, the outer liner 2 is pressed close to the mass block 1, and the pressed outer liner 2 drives the buffer block 4 to press the mass block 1 so as to prevent the outer liner 2 from deforming or even flanging. The outer liner 2 can limit the radial movement of the mass block 1 from two sides of the mass block 1, so that the stability of the damper during rotation is enhanced, and the damping performance of the damper is ensured.
The buffer cavity 3 extends in the axial direction of the mass block 1 and penetrates through the elastic body so as to enlarge the buffer area and effectively absorb vibration and noise.
The surface of the buffer block 4 facing the mass block 1 is in a zigzag shape so as to increase the friction force between the buffer block 4 and the mass block 1 when the buffer block 4 is pressed close to the mass block 1, thereby better preventing the outer lining 2 from deforming or even flanging. The buffer block 4 is an elastic piece made of rubber material, the rubber is made of high-elasticity material, and the buffer effect is good.
The buffer chambers 3 are arranged in an array along the axial circumference of the mass 1, and in a further embodiment, the number of buffer chambers is 3, and the 3 buffer chambers are uniformly distributed around the circumference of the inner side. Through setting up a plurality of cushion chamber, can guarantee that the resonant frequency that the rotatory any angle installation of bumper shock absorber reached is the same, can effectually absorb vibrations and the noise of transmission shaft, make the NVH performance of whole car obtain showing and improving.
The mass block 1 and the outer liner 2 are coaxially arranged, the mass block 1 is cylindrical, the outer liner 2 is annular, and in a further embodiment, the outer liner 2 is made of carbon steel, so that the effect of absorbing vibration and noise is further improved.
Embodiment two:
the utility model provides a built-in bumper shock absorber, includes mass 1 and is located mass 1 both sides and the outer lining 2 that the symmetry set up, and the appearance that mass 1 and outer lining 2 constitute is like dumbbell shape, is equipped with the elastomer between outer lining 2 and the mass 1, has seted up buffer chamber 3 on the elastomer, and buffer chamber 3 is around the circumference interval arrangement of mass 1, and buffer chamber 3 is including the first inner wall that is close to outer lining 2 side and the second inner wall that is close to mass 1 side, is provided with elasticity buffer 4 on first inner wall, buffer 4 orientation second inner wall and with the clearance of second inner wall reservation, buffer 4 is used for limiting mass 1 is at its radial swing range. In the process of pressing the built-in shock absorber into the transmission shaft tube, the outer liner 2 is pressed close to the mass block 1, and the pressed outer liner 2 drives the buffer block 4 to press the mass block 1 so as to prevent the outer liner 2 from deforming or even flanging. The outer liner 2 can limit the radial movement of the mass block 1 from two sides of the mass block 1, so that the stability of the damper during rotation is enhanced, and the damping performance of the damper is ensured.
The buffer cavity 3 extends in the axial direction of the mass block 1 and penetrates through the elastic body so as to enlarge the buffer area and effectively absorb vibration and noise.
The surface of the buffer block 4 facing the mass block 1 is in a zigzag shape so as to increase the friction force between the buffer block 4 and the mass block 1 when the buffer block 4 is pressed close to the mass block 1, thereby better preventing the outer lining 2 from deforming or even flanging. The buffer block 4 is an elastic piece made of rubber material, the rubber is made of high-elasticity material, and the buffer effect is good.
The buffer chambers 3 are arranged in an array along the axial circumference of the mass 1, and in a further embodiment, the number of buffer chambers is 3, and the 3 buffer chambers are uniformly distributed around the circumference of the inner side. Through setting up a plurality of cushion chamber, can guarantee that the resonant frequency that the rotatory any angle installation of bumper shock absorber reached is the same, can effectually absorb vibrations and the noise of transmission shaft, make the NVH performance of whole car obtain showing and improving.
The mass block 1 and the outer liner 2 are coaxially arranged, the mass block 1 is cylindrical, the outer liner 2 is annular, and in a further embodiment, the outer liner 2 is made of carbon steel, so that the effect of absorbing vibration and noise is further improved.
As shown in fig. 3, elastic protrusions 5 are uniformly distributed along the same circumference of the outer side of the outer liner 2, so that when the shock absorber is pressed into the transmission shaft tube, interference fit is formed with the transmission shaft tube, connection is stable, and vibration and noise can be effectively absorbed.
The utility model also provides a transmission shaft, wherein the inner sleeve of the shaft tube of the transmission shaft is provided with the built-in shock absorber.
The utility model also provides a vehicle comprising a propeller shaft according to the above description.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The built-in shock absorber is characterized by comprising a mass block (1) and outer liners (2) which are positioned at two sides of the mass block (1) and are symmetrically arranged, an elastomer is arranged between the outer liners (2) and the mass block (1), and a buffer cavity (3) is formed in the elastomer; the buffer cavities (3) are circumferentially arranged at intervals around the periphery of the mass block (1), and the buffer cavities (3) comprise a first inner wall close to the outer liner (2) side and a second inner wall close to the mass block (1) side; an elastic buffer block (4) is arranged on the first inner wall, the buffer block (4) faces the second inner wall and is reserved with a gap with the second inner wall, and the buffer block (4) is used for limiting the swing amplitude of the mass block (1) in the radial direction.
2. The built-in shock absorber according to claim 1, wherein the damper chamber (3) extends in the axial direction of the mass (1) and penetrates the elastomer.
3. The built-in shock absorber according to claim 1, wherein the surface of the buffer mass (4) facing the mass (1) is serrated.
4. The built-in shock absorber according to claim 1, wherein the buffer block (4) is an elastic member made of rubber material.
5. The built-in shock absorber according to claim 1, wherein the buffer chambers (3) are arranged in a circumferential array along the axial center of the mass (1).
6. The built-in shock absorber according to claim 1, wherein elastic protrusions (5) are uniformly distributed along the same circumference of the outer side of the outer liner (2).
7. The built-in shock absorber according to claim 1, wherein the mass (1) and the outer liner (2) are coaxially arranged, the mass (1) being cylindrical and the outer liner (2) being annular.
8. Built-in shock absorber according to any of claims 1-7, wherein the outer liner (2) is carbon steel.
9. A propeller shaft, characterized in that a shaft tube of the propeller shaft is internally provided with a built-in shock absorber according to any one of claims 1 to 8.
10. A vehicle, characterized in that it comprises a propeller shaft according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320188054.XU CN219692136U (en) | 2023-02-08 | 2023-02-08 | Built-in shock absorber, transmission shaft and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320188054.XU CN219692136U (en) | 2023-02-08 | 2023-02-08 | Built-in shock absorber, transmission shaft and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219692136U true CN219692136U (en) | 2023-09-15 |
Family
ID=87967016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320188054.XU Active CN219692136U (en) | 2023-02-08 | 2023-02-08 | Built-in shock absorber, transmission shaft and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219692136U (en) |
-
2023
- 2023-02-08 CN CN202320188054.XU patent/CN219692136U/en active Active
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