CN203348414U - Novel combined sealing structure of damper - Google Patents
Novel combined sealing structure of damper Download PDFInfo
- Publication number
- CN203348414U CN203348414U CN 201320347376 CN201320347376U CN203348414U CN 203348414 U CN203348414 U CN 203348414U CN 201320347376 CN201320347376 CN 201320347376 CN 201320347376 U CN201320347376 U CN 201320347376U CN 203348414 U CN203348414 U CN 203348414U
- Authority
- CN
- China
- Prior art keywords
- novel combined
- piston rod
- sealing
- guide cover
- vibration damper
- 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
Links
Images
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model provides a novel combined sealing structure of a damper. The novel combined sealing structure of the damper solves the problems that according to an existing oil damper, due to the fact that the active working time of a sealing lip cannot be saved, sealing performance is poor, failure easily happens, and the service life is short. The novel combined sealing structure of the damper comprises a guiding cover, wherein a piston rod penetrates through the center of the guiding cover in a sliding mode, a limiting cover is arranged at the top end of the guiding cover, a corrugated pipe and a sealing assembly are contained in the limiting cover, the piston rod is sleeved with the corrugated pipe, the bottom end of the corrugated pipe is connected with the guiding cover in a sealed mode, the top end of the corrugated pipe is connected with the sealing assembly in a sealed mode, a supporting body is erected in the corrugated pipe, the bottom end of the supporting body is fixedly connected with the guiding cover, and the top end of the supporting body is fixedly connected with the sealing assembly. Due to the fact that the corrugated pipe and an elastic support are matched with an ordinary seal in a combined mode, relative friction movement between the sealing lip and the piston rod can be effectively reduced especially when the piston rod carries out high-frequency small-amplitude movement, reliability of sealing can be improved, and the service life can be prolonged.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to the Novel combined seal structure of a kind of seal arrangement, particularly a kind of vibration damper.
Background technique
The rod seal of axial motion class is widely used in the rod seal fields such as motorcycle, automobile and train oil-pressure damper.The main same vehicle condition of the sealing reliability of piston rod, the road conditions of travelling, operating environment etc. have direct relation.For a long time, although people through updating, actual operation situation is still unsatisfactory, generation seal break-off in the operation process and the thing of part failure is happened occasionally.Especially now China is greatly developing the high ferro cause, and oil-pressure damper plays a part very important as an important spare part in running gear to Security, stability and the travelling comfort of vehicle.If seal failure, the performance of oil-pressure damper will lose efficacy, thereby caused that vehicle rocks, hunting, when serious, can cause overturn accident.The reliability of Seal of Oil Dampers, be an important parameter of vehicle safety thus.
The fluid sealing reliability has direct relation with the relative movement time of Sealing and piston rod, in the situation that operating environment, vehicle-state etc. are all certain, the key factor that solves sealing reliability is to reduce the effective time of sealing lip, be the friction that reduces Sealing and piston rod, but existing sealing configuration all can't meet this requirement.
The model utility content
The purpose of this utility model is to have the problems referred to above for existing technology, a kind of elastic bellows that utilizes has been proposed, the remarkable relative fricting movement of economization in the high frequency small amplitude motion, to reduce the Novel combined seal structure of the vibration damper of frictional loss between piston rod and black box.
The purpose of this utility model can realize by following technical proposal: the Novel combined seal structure of vibration damper, comprise guide cover, the central slide of described guide cover runs through piston rod, it is characterized in that, described guide cover top has position-limiting cover, the bellows and the black box that hold sheathed piston rod in described position-limiting cover, described bellows bottom end seal connects guide cover, its end sealing connects black box, set up support in described bellows, the bottom of the described support guide cover that is connected, its top black box that is connected.
In the Novel combined seal structure of this vibration damper, guide cover is offered central through bore, and piston rod is run through by central through bore, and guide cover moves up and down relatively.Piston rod is positioned at bellows interior, the bellows bottom is fixed in the guide cover base channel, the sulfuration of bellows top is on support, hydraulic oil in the vibration damper cylinder body enters in bellows by the slip gap between piston rod and guide cover thus, just sealed assembly institute seal isolation, and then reach fluid sealing damping vibration attenuation function.
In the Novel combined seal structure of above-mentioned vibration damper, described support has the elastomer that is " Σ " type, and described elastomeric base is admittedly sticked and stated guide cover, and the rear above-mentioned black box of clamping of bending is extended on described elastomeric top.The equal correspondence of the upper and lower end of support be connected black box, guide cover, when the piston rod tension and compression are moved, black box moves in company with piston rod thus, and the support connected in the middle of being positioned at is realized changing the compensation of distance by its elastomeric stretching and compression.
In the Novel combined seal structure of above-mentioned vibration damper, to press and be equipped with pressure pad on described elastomer base, described pressure pad and guide cover card are established and are connected.The effect of pressure pad is that elastomeric straight base is fixed on guide cover, so that location, the bottom of support.
In the Novel combined seal structure of above-mentioned vibration damper, described support adopts metal sulphide to make.
In the Novel combined seal structure of above-mentioned vibration damper, described black box comprises ringwise sealing seat, and the interior border of described sealing seat is parallel offers two concave ring grooves, in described concave ring groove, is embedded seal ring.Sealed socket sleeve is located at the periphery of piston rod, makes seal ring all with piston rod, be the hoop closing contact, so that good double seal to be provided.
In the Novel combined seal structure of above-mentioned vibration damper, described sealing seat adopts metallic material to make.
Compared with prior art, the Novel combined seal structure of this vibration damper connects and coordinates with conventional sealing group by bellows and elastic support, especially at piston rod, carry out under the little amplitude motion of high frequency, can effectively reduce the relative fricting movement of sealing lip and piston rod, thereby improve reliability and the working life of sealing.
The accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of Novel combined seal structure.
In figure, 1, guide cover; 2, piston rod; 3, bellows; 4, support; 5, pressure pad; 6, sealing seat; 7, seal ring; 8, position-limiting cover; 9, guide ring.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, the Novel combined seal modular construction of this vibration damper comprises guide cover 1, piston rod 2, bellows 3, supports pole, pressure pad 5, sealing seat 6, seal ring 7, position-limiting cover 8 etc.
Bellows 3 adopts natural rubber to make, and the interior symmetry of bellows 3 is set up support 4, and directly vulcanize to metal support 4 bottom side surfaces on the top of bellows 3.Bellows 3 bottoms are fixed in guide cover 1 mounting groove with certain pressure by pressure pad 5, to prevent that fluid is by slot leakage.Support 4 is the elastomers that are " Σ " type, when piston rod 2 moves up and down, can move up and down thereupon.The top cover of black box is established position-limiting cover 8, and this position-limiting cover 8 is bowl shape, in running, to the axial displacement of sealing, carries out spacing.
When piston rod 2 is made axially reciprocating up and down, especially under the little amplitude motion state of high frequency, effect due to frictional force, black box is firmly held piston rod 2 tightly, and, due to bellows 3 and interior support 4 thereof elastic telescopic up and down, " Σ " type elastomer of support 4 is driven to produce and stretches or compressive deformation, so black box is followed piston rod 2 knee-actions, and both displacements that do not occur relatively to rub, and then reduce effective time of sealing lip.When the motional amplitude of piston rod 2 is larger, black box is done motion up and down with piston rod 2, until motion is subject to the restriction of top position-limiting cover 8, black box can not continue motion against position-limiting cover 8 inwalls, and then the seal ring in black box 7 and piston rod 2 engaging friction working staties.
It is vertical damper application that this Novel combined seal structure is specially adapted to one of the occasion that high frequency moves by a narrow margin, particularly rail vehicles, and the test proof, this Novel combined seal structure than the long service life of existing general sealing configuration more than 50%.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has more been used guide cover 1; Piston rod 2; Bellows 3; Support 4; Pressure pad 5; Sealing seat 6; Seal ring 7; Position-limiting cover 8; Guide ring 9 terms such as grade, but do not get rid of the possibility of using other term.Using these terms is only in order to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (6)
1. the Novel combined seal structure of vibration damper, comprise guide cover, the central slide of described guide cover runs through piston rod, it is characterized in that, described guide cover top has position-limiting cover, the bellows and the black box that hold sheathed piston rod in described position-limiting cover, described bellows bottom end seal connects guide cover, and its end sealing connects black box, in described bellows, sets up support, the bottom of the described support guide cover that is connected, its top black box that is connected.
2. the Novel combined seal structure of vibration damper according to claim 1, it is characterized in that, described support has the elastomer that is " Σ " type, and described elastomeric base is admittedly sticked and stated guide cover, and the rear above-mentioned black box of clamping of bending is extended on described elastomeric top.
3. the Novel combined seal structure of vibration damper according to claim 2, is characterized in that, on described elastomer base, presses and be equipped with pressure pad, and described pressure pad and guide cover card are established and be connected.
4. the Novel combined seal structure of vibration damper according to claim 2, is characterized in that, described support adopts metal sulphide to make.
5. the Novel combined seal structure of vibration damper according to claim 1, is characterized in that, described black box comprises ringwise sealing seat, and the interior border of described sealing seat is parallel offers two concave ring grooves, in described concave ring groove, is embedded seal ring.
6. the Novel combined seal structure of vibration damper according to claim 5, is characterized in that, described sealing seat adopts metallic material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320347376 CN203348414U (en) | 2013-06-18 | 2013-06-18 | Novel combined sealing structure of damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320347376 CN203348414U (en) | 2013-06-18 | 2013-06-18 | Novel combined sealing structure of damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203348414U true CN203348414U (en) | 2013-12-18 |
Family
ID=49748320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320347376 Expired - Fee Related CN203348414U (en) | 2013-06-18 | 2013-06-18 | Novel combined sealing structure of damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203348414U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953682A (en) * | 2014-05-20 | 2014-07-30 | 常州市达文电动车辆配件厂 | Damper oil leakage-proof sealing piece and motorcycle front damper |
-
2013
- 2013-06-18 CN CN 201320347376 patent/CN203348414U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953682A (en) * | 2014-05-20 | 2014-07-30 | 常州市达文电动车辆配件厂 | Damper oil leakage-proof sealing piece and motorcycle front damper |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206770497U (en) | A kind of shock absorber structure for automobile | |
| CN204692433U (en) | A kind of shock absorber structure for automobile | |
| CN203500367U (en) | Rear shock absorber for motorcycle | |
| CN203348414U (en) | Novel combined sealing structure of damper | |
| CN103089907A (en) | High-stability shock absorber assembly of automobile | |
| CN202659797U (en) | Combined oil sealing structure for automotive shock absorber | |
| CN202040255U (en) | Novel automobile shock absorber | |
| CN202251956U (en) | Floating gap seal with high speed, high frequency and high abrasion resistance | |
| CN205503989U (en) | Hydro -cylinder compensation formula sliding seal structure | |
| CN208503339U (en) | A kind of automobile double Hydraulic shock absorber of high leakproofness | |
| CN101487509A (en) | Guiding device of vehicle vibration damper | |
| CN104251279A (en) | Elastic shock absorber with adjusting rod | |
| CN201521650U (en) | Two-way movement combined type piston sealing piece | |
| CN203161956U (en) | Sealing structure for reducing damping of piston of two-way jar accelerator | |
| CN202612465U (en) | Vehicle steering damper | |
| CN205423673U (en) | Inflatable bumper shock absorber director seal structure | |
| CN203348403U (en) | Front vibration damper assembly of compound automobile | |
| CN205780509U (en) | Vehicle vibration absorber | |
| CN104879418A (en) | Automotive regulating type damping device | |
| CN210599997U (en) | Horizontal oil seal shock absorber | |
| CN221097311U (en) | Sealing structure of hydraulic shock absorber | |
| CN203297462U (en) | Drained damper | |
| CN217207820U (en) | Special waist sealing structure of conical valve | |
| CN203670579U (en) | Shock absorber assembly matching with air suspension | |
| CN218094000U (en) | Rubber shock absorber for mining automobile engine |
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: 20131218 Termination date: 20200618 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |