CN214617630U - External dual-frequency semi-axis dynamic vibration absorber - Google Patents
External dual-frequency semi-axis dynamic vibration absorber Download PDFInfo
- Publication number
- CN214617630U CN214617630U CN202120244580.4U CN202120244580U CN214617630U CN 214617630 U CN214617630 U CN 214617630U CN 202120244580 U CN202120244580 U CN 202120244580U CN 214617630 U CN214617630 U CN 214617630U
- Authority
- CN
- China
- Prior art keywords
- vibration absorber
- dynamic vibration
- external dual
- rubber body
- axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Vibration Prevention Devices (AREA)
Abstract
The utility model provides an external dual-frequency semi-axis dynamic vibration absorber, including the quality piece, the outside parcel of quality piece has the elastomer, and the first end of elastomer is provided with first arch, and it is protruding that the elastomer second end is provided with the second. The utility model discloses a set up first arch, second arch respectively at the elastomer both ends and can realize that the dynamic vibration absorber acts on two frequencies, can effectually inhale the vibration and the noise of shake semi-axis, make the NVH performance of whole car obtain showing and improve.
Description
Technical Field
The utility model relates to a bump leveller technical field especially relates to an external dual-frequency semi-axis dynamic bump leveller.
Background
The power transmission system is a main noise source and an excitation source of an automobile, and the NVH problem of the power transmission system is also a key point and a difficult point of the performance development of the whole automobile, wherein the resonance of a half shaft is a typical problem, and the vibration of the half shaft can influence the comfort of the whole automobile and cause noise in the automobile. The existing dynamic vibration absorber can only solve the vibration of single frequency and needs to be further optimized.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem that exists among the background art, the utility model provides an external dual-frequency semi-axis dynamic vibration absorber.
The utility model provides an external dual-frequency semi-axis dynamic vibration absorber, including the quality piece, the outside parcel of quality piece has the elastomer, and the first end of elastomer is provided with first arch, and the elastomer second end is provided with the second arch.
Preferably, the mass is a cylinder with a central hole in the center.
Preferably, the first protrusions are provided in two numbers, and the two first protrusions are symmetrically distributed about the central axis of the mass block.
Preferably, two second protrusions are provided, and the two second protrusions are symmetrically distributed about the central axis of the mass block.
Preferably, the elastomer is rubber.
Preferably, the first rubber body and the second rubber body which extend outwards are arranged at the two ends of the elastic body respectively, the first rubber body and the second rubber body are cylinders with center holes arranged at the centers and are coaxially arranged with the mass block, and the outer diameters of the first rubber body and the second rubber body are smaller than the outer diameter of the elastic body.
The utility model provides an external dual-frequency semi-axis dynamic vibration absorber assembles bump leveller and outside semi-axis, can realize through setting up first arch, second arch respectively at the elastomer both ends that the dynamic vibration absorber acts on two frequencies, can effectually inhale the vibration and the noise of bump half-axis, makes the NVH performance of whole car obtain showing and improves.
Drawings
Fig. 1 is a schematic structural view of an external dual-frequency semi-axis dynamic vibration absorber according to the present invention;
fig. 2 is a side view of the external dual-frequency half-shaft dynamic vibration absorber of the present invention;
fig. 3 is a cross-sectional view of the external dual-frequency half-shaft dynamic vibration absorber provided by the present invention.
Detailed Description
Referring to fig. 1-3, the utility model provides an external dual-frequency semi-axis dynamic vibration absorber, including quality piece 1, the outside parcel of quality piece 1 has elastomer 2, and 2 first ends of elastomer are provided with first arch 201, and 2 second ends of elastomer are provided with second arch 202. Assemble bump leveller and outside semi-axis, can realize that the dynamic vibration absorber acts on two frequencies through set up first arch 201, second arch 202 respectively at 2 both ends of elastomer, can effectually inhale the vibration and the noise of vibration semi-axis, make the NVH performance of whole car obtain showing the improvement.
In this embodiment, the mass block 1 is a cylinder with a central hole at the center, so as to further improve the effect of absorbing vibration and noise.
In this embodiment, the first protrusions 201 are provided in two numbers, and the two first protrusions 201 are symmetrically distributed about the central axis of the mass block 1, and are distributed at an included angle of 180 degrees, so that the vibration absorber can realize two frequencies.
In this embodiment, two second protrusions 202 are provided, and the two second protrusions 202 are symmetrically distributed about the central axis of the mass block 1, and are distributed at an included angle of 180 °, so that the vibration absorber can realize two frequencies.
In the specific embodiment, the elastic body 2 is made of rubber, so that the buffering effect is good. The two ends of the elastic body 2 are respectively provided with a first rubber body 203 and a second rubber body 204 which extend outwards, the first rubber body 203 and the second rubber body 204 are cylinders with center holes arranged at the centers, the first rubber body 203 and the second rubber body 204 are coaxially arranged with the mass block 1, and the outer diameters of the first rubber body 203 and the second rubber body 204 are smaller than the outer diameter of the elastic body 2. The first rubber body 203 and the second rubber body 204 can be in interference fit, transition fit or clearance fit with the half shaft, and two ends of a corresponding product can be designed into a double-hoop structure, one-end hoop structure and the other end in interference fit or two-end interference fit.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The external dual-frequency half shaft dynamic vibration absorber is characterized by comprising a mass block (1), wherein an elastic body (2) wraps the outside of the mass block (1), a first protrusion (201) is arranged at the first end of the elastic body (2), and a second protrusion (202) is arranged at the second end of the elastic body (2).
2. The external dual frequency semi-axis dynamic vibration absorber according to claim 1, characterized in that the mass (1) is a cylinder with a central hole in the center.
3. The external dual frequency semi-axis dynamic vibration absorber according to claim 2, characterized in that there are two first protrusions (201) and the two first protrusions (201) are symmetrically distributed about the central axis of the mass (1).
4. The external dual frequency semi-axis dynamic vibration absorber according to claim 2, characterized in that there are two second protrusions (202), and the two second protrusions (202) are symmetrically distributed about the central axis of the mass (1).
5. The external dual frequency semi-axis dynamic vibration absorber according to any of claims 1-4, characterized in that the elastomer (2) is made of rubber.
6. The external dual-frequency half-shaft dynamic vibration absorber as claimed in any one of claims 2-4, wherein the two ends of the elastic body (2) are respectively provided with a first rubber body (203) and a second rubber body (204) which extend outwards, the first rubber body (203) and the second rubber body (204) are cylinders with center holes, the first rubber body (203) and the second rubber body (204) are coaxially arranged with the mass block (1), and the outer diameters of the first rubber body (203) and the second rubber body (204) are smaller than the outer diameter of the elastic body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120244580.4U CN214617630U (en) | 2021-01-28 | 2021-01-28 | External dual-frequency semi-axis dynamic vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120244580.4U CN214617630U (en) | 2021-01-28 | 2021-01-28 | External dual-frequency semi-axis dynamic vibration absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214617630U true CN214617630U (en) | 2021-11-05 |
Family
ID=78439267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120244580.4U Active CN214617630U (en) | 2021-01-28 | 2021-01-28 | External dual-frequency semi-axis dynamic vibration absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214617630U (en) |
-
2021
- 2021-01-28 CN CN202120244580.4U patent/CN214617630U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211314835U (en) | Anti-fatigue rubber joint | |
| CN108454322A (en) | A kind of Wheel-band wheels-stretched wire-spring-damper composite mechanical elastic safety car wheel structure | |
| CN214617630U (en) | External dual-frequency semi-axis dynamic vibration absorber | |
| US6749186B2 (en) | Hydraulic bushing with springs in parallel | |
| CN210087905U (en) | External dual-frequency semi-axis dynamic vibration absorber | |
| CN112780710A (en) | External dual-frequency semi-axis dynamic vibration absorber | |
| CN202378680U (en) | Engine suspension device | |
| CN104455198A (en) | Shock absorber and car | |
| JP2011241931A (en) | Vibration control device | |
| CN201723646U (en) | Novel elementary substance bimodule crankshaft torsional vibration damper | |
| CN208919215U (en) | Compound bending-twisting vibration damper | |
| JPH06109075A (en) | Vibrationproof rubber | |
| CN205498630U (en) | Automobile shock absorber transmission shaft | |
| JPS62261730A (en) | Vibration damping device | |
| CN204592138U (en) | Built-in wideband torsional vibration damper | |
| CN219692136U (en) | Built-in shock absorber, transmission shaft and vehicle | |
| CN214461410U (en) | Improved generation assembled building shock attenuation wall body | |
| JP2001173699A (en) | Vibration isolating bush | |
| JP2001227582A (en) | Vibration control device for automobile | |
| CN216975672U (en) | Shock absorber subassembly and engine | |
| CN214083979U (en) | Multi-frequency dynamic vibration absorption structure, seat and automobile | |
| CN220770045U (en) | Shock absorber and vehicle | |
| CN211567647U (en) | Shock absorber | |
| CN220416070U (en) | Suspension bush and vehicle | |
| CN214742989U (en) | Vibration isolation suspension assembly and vehicle comprising same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |