CN213684290U - High-damping automobile flexible joint - Google Patents
High-damping automobile flexible joint Download PDFInfo
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- CN213684290U CN213684290U CN202022465571.6U CN202022465571U CN213684290U CN 213684290 U CN213684290 U CN 213684290U CN 202022465571 U CN202022465571 U CN 202022465571U CN 213684290 U CN213684290 U CN 213684290U
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- bellows
- outer net
- damping
- net cover
- flexible joint
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Abstract
The utility model provides a high damping's flexible festival of car, including the bellows, the inside suit winding pipe of bellows, the outside suit outer net cover of bellows, the end fixing of outer net cover protects the wire netting circle, keeps gapped between bellows and the outer net cover, and the damping value of outer net cover is 10 ~ 30N. The utility model discloses a damping value of strict control outer screen cloth for outer screen cloth can not only effectual protection bellows avoid the foreign matter to strike the damage, more can slow down the vibration of bellows in whole piping, plays the effect of adjusting car flexible joint dynamic stiffness.
Description
Technical Field
The utility model belongs to the technical field of auto-parts, in particular to flexible festival of car of high damping.
Background
The automobile flexible joint is an important connecting piece for connecting an automobile engine and an exhaust system and playing a role in absorbing vibration and reducing vibration, and generally comprises four parts, namely a corrugated pipe, an outer net sleeve, a net protecting ring and a winding pipe. The exhaust system is constantly in a vibration state due to factors such as road bumping and the like during the driving process of the automobile, and the automobile flexible joint needs to absorb the vibration, so that the automobile flexible joint is easily worn during the use process to reduce the durability of the automobile flexible joint, and the service life of the automobile flexible joint is shortened. The outer net sleeve has the functions of protecting the corrugated pipe from being damaged by external impact, preventing foreign body from impacting and damaging the thin-wall corrugated pipe.
In the prior art, the outer net sleeve only has the function of protecting the corrugated pipe from being damaged by external impact, and no one finds that the damping function of the outer net sleeve can slow down the vibration of the corrugated pipe in the whole pipe system, so that the dynamic rigidity of the automobile flexible joint is adjusted.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defect of prior art, the utility model provides a high damping's flexible festival of car, including the bellows, the inside suit winding pipe of bellows, the outside suit outer net cover of bellows, the end fixing of outer net cover protects the wire mesh circle, keeps gapped between bellows and the outer net cover, and the damping value of outer net cover is 10 ~ 30N. The utility model discloses a damping value of strict control outer screen cloth for outer screen cloth can not only effectual protection bellows avoid the foreign matter to strike the damage, more can slow down the vibration of bellows in whole piping, plays the effect of adjusting car flexible joint dynamic stiffness.
In order to achieve the purpose, the utility model provides a high damping's flexible festival of car, including the bellows, the inside suit winding pipe of bellows, the outside suit outer net cover of bellows, the end fixing of outer net cover protects the wire mesh circle, keeps gapped between bellows and the outer net cover, and the damping value of outer net cover is 10 ~ 30N.
Further, the outer net sleeve is a knitting net formed by interweaving a strand of 3 steel wires, and the diameter of each steel wire is 0.15-0.25 mm, preferably 0.2 mm.
Furthermore, the outer diameter of the corrugated pipe is 63-82 mm, and the inner diameter of the outer net sleeve is 68-90 mm.
Further, the difference between the inner diameter of the outer net sleeve and the outer diameter of the corrugated pipe is 5-8 mm.
The utility model discloses a beneficial technological effect shows in following aspect at least:
the utility model discloses a tight control knitting net with elasticity, the damping value of control outer screen sleeve not only can effectually protect the bellows to avoid the foreign matter to strike, has still reduced the bellows because of the displacement that the vibration produced in whole piping for the dynamic rigidity of car flexible festival obtains adjusting.
Drawings
FIG. 1 is a schematic view of a high damping flexible joint for a vehicle according to a preferred embodiment of the present invention;
fig. 2 is a diagram illustrating a damping test of a high-damping flexible joint of an automobile according to a preferred embodiment of the present invention.
Detailed Description
The following embodiments of the present invention will be described in detail, and the following embodiments are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1, in a preferred embodiment of the present invention, the utility model discloses a high damping flexible joint for automobile includes bellows 1, the inside suit winding pipe 2 of bellows 1, the outside suit outer net cover 3 of bellows 1, the end fixing of outer net cover 3 protects the wire netting 4, keeps gapped between bellows 1 and the outer net cover 3, and the damping value of outer net cover 3 is 10 ~ 30N.
The outer net 3 is a knitting net formed by interweaving a strand of 3 steel wires, and the diameter of the steel wires is 0.2 mm.
In examples 1-5, the internal diameters of the outer jacket 3 for different outer diameters of the bellows 1 are shown in the following table:
| examples | Outer net cover inner diameter (mm) | Bellows external diameter (mm) |
| Example 1 | 68 | 63 |
| Example 2 | 72 | 66 |
| Example 3 | 79 | 72.5 |
| Example 4 | 84.5 | 79 |
| Example 5 | 89.5 | 82 |
The damping testing device is used for testing the outer net sleeves 3 with different diameters, one group of experimental data is shown in figure 2, the displacement normal range of the outer net sleeves 3 is 20-50 mm, and the corresponding damping value of the outer net sleeves 3 is 10-30N.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the teachings of this invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (5)
1. The high-damping automobile flexible joint is characterized by comprising a corrugated pipe, wherein a winding pipe is sleeved inside the corrugated pipe, an outer net sleeve is sleeved outside the corrugated pipe, a net protecting ring is fixed at the end part of the outer net sleeve, a gap is reserved between the corrugated pipe and the outer net sleeve, and the damping value of the outer net sleeve is 10-30N.
2. The high damping automotive flex joint of claim 1 wherein the outer netting is a knitted mesh formed by interlacing 3 strands of wire having a diameter of 0.15 to 0.25 mm.
3. The high damping automotive flexure of claim 2 wherein the wire diameter is 0.2 mm.
4. The high damping automotive flexure joint of claim 1 wherein the bellows has an outer diameter of 63-82 mm and the outer jacket has an inner diameter of 68-90 mm.
5. The high damping automotive flexure joint of claim 4 wherein the difference between the inner diameter of the outer mesh and the outer diameter of the bellows is 5-8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022465571.6U CN213684290U (en) | 2020-10-30 | 2020-10-30 | High-damping automobile flexible joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022465571.6U CN213684290U (en) | 2020-10-30 | 2020-10-30 | High-damping automobile flexible joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213684290U true CN213684290U (en) | 2021-07-13 |
Family
ID=76726251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022465571.6U Active CN213684290U (en) | 2020-10-30 | 2020-10-30 | High-damping automobile flexible joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213684290U (en) |
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2020
- 2020-10-30 CN CN202022465571.6U patent/CN213684290U/en active Active
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