CN204900712U - Belt tensioning bumper shock absorber - Google Patents
Belt tensioning bumper shock absorber Download PDFInfo
- Publication number
- CN204900712U CN204900712U CN201520578758.3U CN201520578758U CN204900712U CN 204900712 U CN204900712 U CN 204900712U CN 201520578758 U CN201520578758 U CN 201520578758U CN 204900712 U CN204900712 U CN 204900712U
- Authority
- CN
- China
- Prior art keywords
- hydraulic pressure
- tappet
- sleeve
- pressure housing
- compression spring
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a belt tensioning bumper shock absorber, including hydraulic pressure casing and tappet, be equipped with a cylindrical cavity in the hydraulic pressure casing, establish the sleeve in the cylindrical cavity, the sleeve bottom is equipped with the check valve mechanism of through -hole and cooperation through -hole, sleeve integrated into one piece, the sleeve is installed in the hydraulic pressure casing through the interference mound mode of riveting, the tappet inserts one end in the sleeve and is equipped with the stopping ring, and the other end is equipped with the uide bushing, the uide bushing upper end is fixed on the tappet, uide bushing peripheral hardware dirt proof boot, it is inboard that the uide bushing is located the hydraulic pressure casing, the dirt proof boot is located the hydraulic pressure casing outside, be equipped with spiral vertical compression spring between hydraulic pressure casing and the tappet, it is inboard that hydraulic pressure casing bottom is withstood to spiral vertical compression spring bottom, and uide bushing and tappet junction are withstood to spiral vertical compression spring top. The utility model discloses sleeve processing cycle is short, and the assembly is simple, and is with low costs, and stability is good, tappet and telescopic cooperation are more reliable and more stable, stop uide bushing department oil leak phenomenon simultaneously.
Description
Technical field
The utility model relates to a kind of automobile Component, particularly relates to a kind of belt tension vibration damper.
Background technique
Along with automobile engine wheel train is arranged day by day complicated, more and more higher to the requirement of train transmission capacity, require that the component of transmission get more and more, require that wheel train structure is compact, durable in use, vibrating noise is little simultaneously.And hydraulic tensioner more easily meets these requirements compared to dry friction type stretcher.In tension device, tightening belt prevents the amount of tension of skidding, the important quality and the performance index that suppress the damping of belt vibration to be evaluation stretcher.The size that the amount of tension of stretcher mainly relies on its tensioning moment regulates, as long as design suitable tension spring rigidity, the decrement at rocking arm length and working position place is just well positioned to meet requirement to amount of tension.And for the design of damping in stretcher, designing suitable damping to suppress the vibration noise of belt is but a difficult point, and therefore damping characteristic also just becomes the first important evaluation index of stretcher performance.
The shortcoming of prior art:
Existing belt tension vibration damper on 4G18 motor, sleeve is generally made up of three component, and adopt laser bonding after assembling, the process-cycle is long, and relative cost is higher.Tappet draw ring is that aluminium alloy compression casting forms, and has disengaging risk; And guide sleeve place easily occurs oil leakage phenomenon, and a series of phenomenon such as the accidental disengaging of tappet draw ring occurs.
Model utility content
The utility model, in order to solve the defect and deficiency that exist in above-mentioned prior art, provides a kind of sleeve process-cycle short, and assembling is simple, cost is low, and good stability, the cooperation of tappet and sleeve is more reliable and more stable simultaneously, stops the belt tension vibration damper of guide sleeve place oil leakage phenomenon.
The technical solution of the utility model: a kind of belt tension vibration damper, comprise hydraulic pressure housing and tappet, a cylindrical cavity is provided with in described hydraulic pressure housing, sleeve is established in cylindrical cavity, described sleeve bottom is provided with through hole and coordinates the one-way valve mechanism of through hole, described sleeve is one-body molded, sleeve is arranged in hydraulic pressure housing by interference pier riveting mode, one end that described tappet inserts in sleeve is provided with retaining ring, the other end is provided with guide sleeve, described guide sleeve upper end is fixed on tappet, guide sleeve peripheral hardware dirt-proof boot, described guide sleeve is positioned at hydraulic pressure case inside, described dirt-proof boot is positioned at hydraulic pressure hull outside, spiral vertical compression spring is provided with between described hydraulic pressure housing and tappet, described spiral vertical compression spring bottom withstands hydraulic pressure housing bottom inside, spiral vertical compression spring top withstands guide sleeve and tappet joint.
The utility model sleeve adopts integrated formed structure, is arranged in hydraulic pressure housing, makes its process-cycle short by interference pier riveting mode, and assembling is simple, and cost is low, and good stability; The setting of retaining ring on tappet, makes the cooperation of tappet and sleeve more reliable and more stable, stops guide sleeve place oil leakage phenomenon simultaneously.
Interference pier riveting in the utility model refers to that sleeve one end and hydraulic pressure housing are by carrying out head riveted joint again after interference fit.
Preferably, described tappet is one-body molded, and the upper end of described guide sleeve is fixed on tappet upper end by the mode of laser bonding.
Tappet is one-body molded, strengthens tappet intensity, prevents tappet break-off and occurs; Guide sleeve adopts laser bonding can stop guide sleeve place oil leakage phenomenon further.
Preferably, be provided with an anti-abrasion pad between described spiral vertical compression spring bottom and hydraulic pressure housing, described hydraulic pressure housing oral area is provided with an outside framework oil seal, and described outside framework oil seal upper end is provided with special-shaped retaining collar.
This kind of structure improves its sealing and stability.
Preferably, described one-way valve mechanism comprises the steel ball, check valve spring and the valve gap that are arranged on inside sleeve bottom, and described steel ball blocks through hole from inner side, and described check valve spring withstands between valve gap and steel ball, is also provided with valve gap restraining groove inside described sleeve bottom.
This kind of structure improves its working stability.
Preferably, described hydraulic pressure housing bottom is provided with the first anti-attrition cover and the first fixing pin, and described tappet top is provided with the second anti-attrition cover and the second fixing pin.
In the utility model, fixing pin adopts circular arc spherical surface, can prevent unidirectional Fast Wearing.
The utility model sleeve adopts integrated formed structure, is arranged in hydraulic pressure housing, makes its process-cycle short by interference pier riveting mode, and assembling is simple, and cost is low, and good stability; The setting of retaining ring on tappet, makes the cooperation of tappet and sleeve more reliable and more stable, stops guide sleeve place oil leakage phenomenon simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
1. first anti-attrition covers, 2. the first fixing pin, 3. tappet, 4. dirt-proof boot in figure, 5. guide sleeve, 6. special-shaped retaining collar, 7. outside framework oil seal, 8. hydraulic pressure housing, 9. spiral vertical compression spring, 10. anti-abrasion pad, 11. sleeves, 12. retaining rings, 13. valve gaps, 14. check valve springs, 15. steel balls, 16. valve gap restraining grooves, 17. through holes, 18. second anti-attrition covers, 19. second fixing pins.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, but is not the restriction to the utility model protection domain.
As shown in Figure 1, a kind of belt tension vibration damper, comprise hydraulic pressure housing 8, a cylindrical cavity is provided with in hydraulic pressure housing 8, sleeve 11 is provided with in cylindrical cavity, the one-body molded design of sleeve 11, and adopt interference pier riveting mode to be arranged in hydraulic pressure housing 8, the one-way valve mechanism of a through hole 17 and a cooperation through hole 17 is provided with bottom sleeve 11, this one-way valve mechanism is provided with a steel ball 15, check valve spring 14, valve gap 13, steel ball 15 blocks through hole 17 from inner side, and check valve spring 14 withstands between valve gap 13 and steel ball 15, and sleeve 11 bottom inside is also provided with valve gap restraining groove 16.Tappet 3 is placed in sleeve 11, tappet 3 one end of inserting in sleeve 11 is provided with retaining ring 12, the other end is provided with guide sleeve 5, guide sleeve 5 upper end is fixed on tappet 3, guide sleeve 5 peripheral hardware dirt-proof boot 4, and guide sleeve position 5 is inside hydraulic pressure housing 8, dirt-proof boot 4 is positioned at outside hydraulic pressure housing 8, be provided with spiral vertical compression spring 9 between hydraulic pressure housing 8 and tappet 3, withstand hydraulic pressure housing 8 bottom inside bottom spiral vertical compression spring 9, guide sleeve 5 and tappet 3 joint are withstood in spiral vertical compression spring 9 top; Tappet 3 is one-body molded, and the upper end of guide sleeve 5 is fixed on tappet 3 upper end by the mode of laser bonding.Be provided with an anti-abrasion pad 10 bottom spiral vertical compression spring 9 and between hydraulic pressure housing 8, hydraulic pressure housing 8 oral area is provided with an outside framework oil seal 7, and outside framework oil seal 7 upper end is provided with special-shaped retaining collar 6.Be provided with the first anti-attrition cover 1 and the first fixing pin 2 bottom hydraulic pressure housing 8, tappet 3 top is provided with the second anti-attrition cover 18 and the second fixing pin 19, first fixing pin 2 and the second fixing pin 19 and is circular arc spherical surface.
The utility model sleeve adopts integrated formed structure, is arranged in hydraulic pressure housing, makes its process-cycle short by interference pier riveting mode, and assembling is simple, and cost is low, and good stability; The setting of retaining ring on tappet, makes the cooperation of tappet and sleeve more reliable and more stable, stops guide sleeve place oil leakage phenomenon simultaneously.
Claims (5)
1. a belt tension vibration damper, comprise hydraulic pressure housing and tappet, a cylindrical cavity is provided with in described hydraulic pressure housing, sleeve is established in cylindrical cavity, described sleeve bottom is provided with through hole and coordinates the one-way valve mechanism of through hole, it is characterized in that: described sleeve is one-body molded, sleeve is arranged in hydraulic pressure housing by interference pier riveting mode, one end that described tappet inserts in sleeve is provided with retaining ring, the other end is provided with guide sleeve, described guide sleeve upper end is fixed on tappet, guide sleeve peripheral hardware dirt-proof boot, described guide sleeve is positioned at hydraulic pressure case inside, described dirt-proof boot is positioned at hydraulic pressure hull outside, spiral vertical compression spring is provided with between described hydraulic pressure housing and tappet, described spiral vertical compression spring bottom withstands hydraulic pressure housing bottom inside, spiral vertical compression spring top withstands guide sleeve and tappet joint.
2. a kind of belt tension vibration damper according to claim 1, is characterized in that: described tappet is one-body molded, and the upper end of described guide sleeve is fixed on tappet upper end by the mode of laser bonding.
3. a kind of belt tension vibration damper according to claim 1, it is characterized in that: between described spiral vertical compression spring bottom and hydraulic pressure housing, be provided with an anti-abrasion pad, described hydraulic pressure housing oral area is provided with an outside framework oil seal, and described outside framework oil seal upper end is provided with special-shaped retaining collar.
4. a kind of belt tension vibration damper according to claim 1, it is characterized in that: described one-way valve mechanism comprises the steel ball, check valve spring and the valve gap that are arranged on inside sleeve bottom, described steel ball blocks through hole from inner side, described check valve spring withstands between valve gap and steel ball, is also provided with valve gap restraining groove inside described sleeve bottom.
5. a kind of belt tension vibration damper according to claim 1, it is characterized in that: described hydraulic pressure housing bottom is provided with the first anti-attrition cover and the first fixing pin, described tappet top is provided with the second anti-attrition cover and the second fixing pin, and described first fixing pin and the second fixing pin are circular arc spherical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520578758.3U CN204900712U (en) | 2015-08-05 | 2015-08-05 | Belt tensioning bumper shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520578758.3U CN204900712U (en) | 2015-08-05 | 2015-08-05 | Belt tensioning bumper shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204900712U true CN204900712U (en) | 2015-12-23 |
Family
ID=54922890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520578758.3U Expired - Fee Related CN204900712U (en) | 2015-08-05 | 2015-08-05 | Belt tensioning bumper shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204900712U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485083A (en) * | 2015-12-30 | 2016-04-13 | 长安马自达汽车有限公司 | Internal structure of hydraulic unit for preventing tensioner from leaking oil and design method of internal structure |
-
2015
- 2015-08-05 CN CN201520578758.3U patent/CN204900712U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485083A (en) * | 2015-12-30 | 2016-04-13 | 长安马自达汽车有限公司 | Internal structure of hydraulic unit for preventing tensioner from leaking oil and design method of internal structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20180805 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |