CN104976269A - Anti-dust-seal structure for controlling oil leakage of damper - Google Patents
Anti-dust-seal structure for controlling oil leakage of damper Download PDFInfo
- Publication number
- CN104976269A CN104976269A CN201510356219.XA CN201510356219A CN104976269A CN 104976269 A CN104976269 A CN 104976269A CN 201510356219 A CN201510356219 A CN 201510356219A CN 104976269 A CN104976269 A CN 104976269A
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- CN
- China
- Prior art keywords
- end cap
- dust seal
- dust
- seal structure
- vibration damper
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- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/362—Combination of sealing and guide arrangements for piston rods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/38—Covers for protection or appearance
Abstract
The invention discloses an anti-dust-seal structure for controlling oil leakage of a damper. The anti-dust-seal structure for controlling the oil leakage of the damper comprises a damper body. A metal end cover component is installed on the end face of an oil storage drum on the damper body. The metal end cover component comprises an end cover gasket and an end cover shield, and the end cover gasket and the end cover shield are connected by welding. Multiple step ribs are further arranged at the welding end face of the end cover shield and the end cover gasket. Multiple air holes are formed in the side face of the end cover shield in an outrushing mode. Through the anti-dust-seal structure for controlling the oil leakage of the damper, the strength is guaranteed, ventilation and exhaust of impurities are also guaranteed, at the same time, the impurities and dust can be completely prevented from entering, and at the same time, the condition of oil leakage does not occur.
Description
Technical field
The present invention relates to vibration damper field, particularly, relate to the dust seal structure controlling damper leakage.
Background technique
damper leakage always is the difficult point in absorber designing and production process, and it has abnormal sound to vibration damper, invalidation functions has serious potential failure mode, does not have effective way to go to solve all the time; Its traditional vibration damper mainly relies on oil sealing to control leakage of oil, receives selecting of oil sealing three structures of sowing:
The first is that oil sealing is made into single spring structure, utilizes single spring oil sealing to carry out control to piston rod and leaks, and this structure is depended merely on single spring to control to leak and simultaneously controlled impurity again and entering of dust is very difficult, in use can not control leakage of oil to vibration damper;
The second is that oil sealing is made into two-man act structure, namely utilize two-man act oil sealing to carry out control to piston rod to leak, although entering of a part of impurity and dust can be solved like this, but fundamentally can not solve entering of impurity and dust, and the actual conditions of vibration damper is again quite severe, and damper leakage is not still resolved;
The third increases a plastic end cover by fuel tank, step shape is made in end cap, a dust seal is increased again in step, to solve the problem that impurity and dust easily enter like this, but structure is more complicated, simultaneously in the vibration damper having bumper, plastic end cover is yielding when clashing into, and vacuum is formed between oil sealing and dust seal, be unfavorable for that vibration damper is vented.
Summary of the invention
Technical problem to be solved by this invention is to provide and controls the dust seal structure of damper leakage, and this structure both ensure that intensity in turn ensure that the discharge of ventilation and impurity, while can also avoid entering of impurity and dust completely, also there will not be leakage oil condition simultaneously.
The present invention's adopted technological scheme that solves the problem is: the dust seal structure controlling damper leakage, comprise vibration damper body, the end face of the fuel tank on described vibration damper body installs metal end assembly, metal end assembly comprises end cap packing ring and end cap cover, by being welded to connect between end cap packing ring and end cap cover, the welding end surface of end cap cover and end cap packing ring also arranges multiple step muscle, multiple vent is also gone out in the side of end cap cover.This patent is compared with original vibration damper, this patent adopts metal end assembly on end cover of shock absorber, end-cap assembly is welded by end cap packing ring and end cap cover, such end cap packing ring is available thicker material just, thus ensures the intensity of end-cap assembly, indeformable when end-cap assembly is impacted, when manufacturing terminal housing, end cap cover is molded into four step muscle, four vents is gone out in end cap cover side simultaneously, so just namely ensure that intensity in turn ensure that the discharge of ventilation and impurity.
In order to thoroughly solve the problem that vibration damper impurity and dust easily enter, the step muscle on described end cap cover is four, also arranges the dust seal for holding piston rod tightly in the below of four step muscle.
In order to ensure the ventilation between dust seal and vibration damper body, the bottom surface of described dust seal extrudes multiple groove.Compared with existing vibration damper, the gas that in this programme, sealing area produces between vibration damper body and dust seal is by the outside exhausting air of multiple groove, discharge finally by vent, to avoid between vibration damper body and dust seal that sealing area pressure is excessive damages dust seal by pressure, thus the problem thoroughly solving vibration damper impurity and dust and easily enter cannot be reached.
Further enhanced leaktightness effect, oil sealing also utilizes two-man act seal, and avoids Lou oil condition to occur,
Oil sealing on vibration damping body is also arranged two springs.
The side of end cap cover is gone out four vents.Four vents can meet the needs of exhaust completely, also can play the object that isolated foreign matter enters simultaneously.
Described vibration damper body comprises clutch release slave cylinder and guide holder, and guide holder arranges annular working chamber, and install combined oil sealing in annular working chamber, in clutch release slave cylinder, also arrange oil sealing catch, combined oil sealing is clipped between guide holder and oil sealing catch.
To sum up, the invention has the beneficial effects as follows:
1, this patent is that end cover of shock absorber is made metal end assembly, end-cap assembly is welded by end cap packing ring and end cap cover, such end cap packing ring is available thicker material just, thus ensure the intensity of end-cap assembly, indeformable when end-cap assembly is impacted, when manufacturing terminal housing, end cap cover is molded into four step muscle, four vents are gone out in end cap cover side simultaneously, so just namely ensure that intensity in turn ensure that the discharge of ventilation and impurity.
2, below four step muscle of end-cap assembly, increase the dust seal that one hugs piston rod, the bottom surface of dust seal extrudes several groove, makes it vibration damper ventilation, it thoroughly can solve the problem that vibration damper impurity and dust easily enter, guarantee vibration damper is oil-proof, and this structure is simple, is convenient to manufacture.
3, on the bottom surface of dust seal, multiple groove is extruded, for getting rid of the gas that sealing area produces between vibration damper body and dust seal, to avoid between vibration damper body and dust seal that sealing area pressure is excessive damages dust seal by pressure, thus the problem thoroughly solving vibration damper impurity and dust and easily enter cannot be reached.
4, the step muscle arranged on end cap cover can better ensure the tightness degree of dust seal and contact segment, avoids entering of vibration damper impurity and dust.
Accompanying drawing explanation
Fig. 1 is sectional view of the present invention;
Fig. 2 is the sectional view of metal end assembly;
Fig. 3 is the sectional view of dust seal in Fig. 1;
Fig. 4 is that in existing vibration damper, oil sealing is the sectional view of single spring structure;
Fig. 5 is that in existing vibration damper, oil sealing is the sectional view of two-man act structure;
Fig. 6 is the sectional view in existing vibration damper, fuel tank increasing a plastic end cover.
Mark and corresponding component title in accompanying drawing: 1, piston rod; 2, fuel tank; 3, clutch release slave cylinder; 4, end cap cover; 5, end cap packing ring; 6, dust seal; 7, oil sealing; 8, spring; 9, step muscle; 10, vent; 11, groove; 12, plastic end cover; 13, dustproof construction; 14, impurity and dust easily enter place.
Embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the present invention's do, but embodiments of the present invention are not limited thereto.
Embodiment 1:
As Figure 1-3, the present invention includes vibration damper body, the end face of the fuel tank 2 on described vibration damper body installs metal end assembly, metal end assembly comprises end cap packing ring 5 and end cap cover 4, by being welded to connect between end cap packing ring 5 and end cap cover 4, end cap cover 4 with the welding end surface of end cap packing ring 5 also arrange multiple step muscle 9, multiple vent 10 is also gone out in the side of end cap cover 4.
This end cover of shock absorber adopts metal end assembly, end-cap assembly is welded by end cap packing ring and end cap cover, such end cap packing ring is available thicker material just, thus ensure the intensity of end-cap assembly, indeformable when end-cap assembly is impacted, when manufacturing terminal housing, end cap cover is molded into four step muscle, four vents are gone out in end cap cover side simultaneously, so just namely ensure that intensity in turn ensure that the discharge of ventilation and impurity.
As Figure 1-4, compared with the first vibration damper in background technique, the first vibration damper in background technique is that oil sealing is made into single spring structure, utilize single spring oil sealing to carry out control to piston rod to leak, fuel tank is divided into two-part by piston rod, will be squeezed after the piston rod on vibration damper is subject to outside active force and occur to move backward, compression is positioned at the liquid of the fuel tank of piston rod side, liquid in the fuel tank of left side is reduced the pressure of piston rod, and liquid constantly increases the pressure of piston rod in the fuel tank of right side, thus Rebound part distance will be driven to go back, finally reach balance.In the process that piston rod moves back and forth will and oil sealing between produce gap, cause impurity dust to enter impurity and dust easily enters place 14, thus reduce vibration damper to the damping effect of vehicle.And metal end assembly and external isolation are set specially in this programme on the end face of fuel tank 2, even if piston rod is in the process that stressed generation is movable, metal end assembly and outside completely isolated, thus avoid entering of impurity dust, the vent 10 simultaneously end cap cover side arranged can also discharge the gas of sealing metal end-cap assembly inside and the discharge of impurity.
As illustrated in figures 1-3 and 5, compared with the second vibration damper in background technique, namely the second vibration damper in background technique utilizes two-man act oil sealing to carry out control to piston rod and leaks, although entering of a part of impurity and dust can be solved like this, but fundamentally can not solve entering of impurity and dust, there is identical problem with the first vibration damper.
As shown in Fig. 1-3 and Fig. 6, compared with the third vibration damper in background technique, the third vibration damper in background technique increases a plastic end cover by fuel tank, step shape is made in end cap, a dust seal is increased again in step, to solve the problem that impurity and dust easily enter like this, but structure is more complicated, simultaneously in the vibration damper having bumper, plastic end cover is yielding when clashing into, and vacuum is formed between oil sealing and dustproof construction 13, be unfavorable for that vibration damper is vented.And what adopt in present specification is metal end assembly, metal end assembly comprises end cap packing ring 5 and end cap cover 4, thickening process can also be carried out for the end cap packing ring part of easily being clashed into, compared with plastic end cover 12, clash into more not yielding, owing to also arranging vent in present specification, avoid forming vacuum between oil sealing and metal assembly, be more conducive to vibration damper exhaust.
Embodiment 2:
The present embodiment is preferably as follows on the basis of embodiment 1: the step muscle 9 on end cap cover 4 is four, also arranges the dust seal 6 for holding piston rod 1 tightly in the below of four step muscle 9.Dust seal one end in this programme is stuck on the end cap cover with multiple step muscle, dust seal not only can solve entering of vibration damper foreign matter and dust, can also block end cap cover firmly avoids it to slide, even if end cap cover produces slight slip, owing to end cap cover there being four step muscle, the step muscle of diverse location also can keep gripping orientation with dust seal fast, avoids producing gap, thus the problem that thorough solution vibration damper impurity and dust easily enter.Although the third vibration damper in background technique is also provided with dust seal, be pressed on plastic end cover, because plastic end cover is structure as a whole, above, step muscle is not set yet, easily slide between dust seal and plastic end cover, produce gap, cause entering of impurity and dust.Plastic end cover compares metal end housing in addition, and anti-collision ability is weak, more yielding, thus produces gap, cannot reach the problem that thoroughly solution vibration damper impurity and dust easily enter.
Embodiment 3:
The present embodiment is preferred on the basis of above-described embodiment: the bottom surface of dust seal 6 extrudes multiple groove 11.Compared with existing vibration damper, the gas that in this programme, sealing area produces between vibration damper body and dust seal is by the outside exhausting air of multiple groove, discharge finally by vent, to avoid between vibration damper body and dust seal that sealing area pressure is excessive damages dust seal by pressure, thus the problem thoroughly solving vibration damper impurity and dust and easily enter cannot be reached.
Embodiment 4:
The present embodiment is preferred on the basis of above-described embodiment: the oil sealing 7 on vibration damping body is also arranged two springs 8.Further enhanced leaktightness effect, oil sealing also utilizes two-man act seal, and avoids Lou oil condition to occur.
Embodiment 5:
The present embodiment is preferred on the basis of above-described embodiment: the side of end cap cover 4 is gone out four vents 10.Four vents can meet the needs of exhaust completely, also can play the object that isolated foreign matter enters simultaneously.
Vibration damper body comprises clutch release slave cylinder 3 and guide holder, and guide holder arranges annular working chamber, and install combined oil sealing in annular working chamber, in clutch release slave cylinder, also arrange oil sealing catch, combined oil sealing is clipped between guide holder and oil sealing catch.
The above is only preferred embodiment of the present invention, and not do any pro forma restriction to the present invention, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present invention, all falls within protection scope of the present invention.
Claims (6)
1. control the dust seal structure of damper leakage, comprise vibration damper body, it is characterized in that, the end face of the fuel tank (2) on described vibration damper body installs metal end assembly, metal end assembly comprises end cap packing ring (5) and end cap cover (4), by being welded to connect between end cap packing ring (5) and end cap cover (4), the welding end surface of end cap cover (4) with end cap packing ring (5) also arranges multiple step muscle (9), multiple vent (10) is also gone out in the side of end cap cover (4).
2. the dust seal structure of control damper leakage according to claim 1, is characterized in that, the step muscle (9) on described end cap cover (4) is four, also arranges the dust seal (6) being used for holding piston rod (1) tightly in the below of four step muscle (9).
3. the dust seal structure of control damper leakage according to claim 2, is characterized in that, the bottom surface of described dust seal (6) extrudes multiple groove (11).
4. the dust seal structure of control damper leakage according to claim 2, is characterized in that, the oil sealing (7) on vibration damping body is also arranged two springs (8).
5. the dust seal structure of control damper leakage according to claim 1, is characterized in that, the side of end cap cover (4) is gone out four vents (10).
6. the dust seal structure of control damper leakage according to claim 1, it is characterized in that, described vibration damper body comprises clutch release slave cylinder and guide holder, guide holder arranges annular working chamber, in annular working chamber, combined oil sealing is installed, in clutch release slave cylinder, also arrange oil sealing catch, combined oil sealing is clipped between guide holder and oil sealing catch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510356219.XA CN104976269A (en) | 2015-06-25 | 2015-06-25 | Anti-dust-seal structure for controlling oil leakage of damper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510356219.XA CN104976269A (en) | 2015-06-25 | 2015-06-25 | Anti-dust-seal structure for controlling oil leakage of damper |
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| CN104976269A true CN104976269A (en) | 2015-10-14 |
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| CN201510356219.XA Pending CN104976269A (en) | 2015-06-25 | 2015-06-25 | Anti-dust-seal structure for controlling oil leakage of damper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109073023A (en) * | 2016-04-25 | 2018-12-21 | Ｋｙｂ株式会社 | buffer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050102713A (en) * | 2004-04-21 | 2005-10-27 | 주식회사 만도 | Sealing structure of a shock absorber |
| CN101042167A (en) * | 2007-04-28 | 2007-09-26 | 万向钱潮股份有限公司 | Dust cap components |
| KR20080022926A (en) * | 2006-09-08 | 2008-03-12 | 주식회사 만도 | Steel cap attached in a shock absorber |
| US20130146408A1 (en) * | 2011-12-12 | 2013-06-13 | Mando Corporation | Dust seal structure for shock absorber |
| CN204828458U (en) * | 2015-06-25 | 2015-12-02 | 四川宁江山川机械有限责任公司 | Dustproof structure of sealing of control shock absorber oil leak |
-
2015
- 2015-06-25 CN CN201510356219.XA patent/CN104976269A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050102713A (en) * | 2004-04-21 | 2005-10-27 | 주식회사 만도 | Sealing structure of a shock absorber |
| KR20080022926A (en) * | 2006-09-08 | 2008-03-12 | 주식회사 만도 | Steel cap attached in a shock absorber |
| CN101042167A (en) * | 2007-04-28 | 2007-09-26 | 万向钱潮股份有限公司 | Dust cap components |
| US20130146408A1 (en) * | 2011-12-12 | 2013-06-13 | Mando Corporation | Dust seal structure for shock absorber |
| CN204828458U (en) * | 2015-06-25 | 2015-12-02 | 四川宁江山川机械有限责任公司 | Dustproof structure of sealing of control shock absorber oil leak |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109073023A (en) * | 2016-04-25 | 2018-12-21 | Ｋｙｂ株式会社 | buffer |
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Application publication date: 20151014 |