CN207246314U - A kind of shock absorber sealing device of the guide holder containing wedge insert - Google Patents
A kind of shock absorber sealing device of the guide holder containing wedge insert Download PDFInfo
- Publication number
- CN207246314U CN207246314U CN201721309823.8U CN201721309823U CN207246314U CN 207246314 U CN207246314 U CN 207246314U CN 201721309823 U CN201721309823 U CN 201721309823U CN 207246314 U CN207246314 U CN 207246314U
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- CN
- China
- Prior art keywords
- guide holder
- sealing
- pressure oil
- wedge insert
- oil sealing
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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.)
- Expired - Fee Related
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- Fluid-Damping Devices (AREA)
Abstract
A kind of shock absorber sealing device of guide holder containing wedge insert of the utility model, including piston rod, guide holder, oil trap, low pressure oil sealing, High-pressure oil sealing, dust ring, hole sealing ring, limit base, oil leakage sensor, gasket, elastomeric material, emptying passage.Wherein described guide holder contains wedge insert, wedge insert is full of fluid in shock absorbers extension stroke, wedge insert is close to piston rod wall to the expansion of piston rod direction, reduce fluid adhesion on the piston rod, wedge insert is shunk in shock absorbers compression stroke, increase and piston rod wall distance, accelerate fluid and are back to piston upper chamber；The oil leakage sensor is installed in damper cylinder barrel, is fitted close with piston rod top to monitor the working oil of loss；The low pressure oil sealing is fitted close with High-pressure oil sealing, and further fluid is sealed.The utility model the advantage is that to be solved the problems, such as shock absorber sealing, damper leakage warning function is realized using oil leakage sensor well using multiple device for preventing leakage.
Description
Technical field
It the utility model is related to hydraulic shock absorber sealing device, more particularly to a kind of damper of guide holder containing wedge insert
Sealing device.
Background technology
Damper as decay body vibrations important device, be mainly used to suppress automobile pass through uneven road surface when absorbing bullet
Spring rebound when vibration and road shocks, its work quality by the stationarity, the comfort that directly influence running car with
And the service life of other parts.
The current low and middle-grade widely used hydraulic shock absorbers of automobile, damper are installed on below vehicle body, and working environment is severe.In
State license notification number CN205173340U is disclosed " a kind of double barreled fluid power snubber ", and the device is only in damping column and outside
Sealed between cylinder using Oil sealing assembly, seal form is single.Chinese patent Authorization Notice No. CN206468736U is disclosed
" sealing structure of oil-pressure damper " seals oleo-gear using low pressure seal circle and high-pressure seal ring, its high densification
Seal, which is installed on, to be oriented in seat slot, and low pressure oil sealing is installed on guide holder upper end, and mounting structure is complicated, and above-mentioned two patents are all only
Consider shock absorber sealing problem, but oil leak situation occurs in damper in use for some time, and detection damper whether there is
Leakage still uses naked eyes discriminating fashion, and accuracy of detection is relatively low.The utility model is using guide holder containing wedge insert, oil leak
Sensor, High-pressure oil sealing and low pressure oil sealing, good airproof performance, work noise are low, service life is long, excellent with oil leak warning function etc.
Point.
Utility model content
The utility model is directed to above-mentioned problem, there is provided a kind of shock absorber sealing dress of guide holder containing wedge insert
Put, its technical solution is：A kind of shock absorber sealing device include piston rod, guide holder, oil trap, low pressure oil sealing, High-pressure oil sealing,
Dust ring, hole sealing ring, limit base, oil leakage sensor, gasket, elastomeric material, emptying passage, the guide holder are stuck in work
Cylinder barrel upper end and with oil storage cylinder barrel inner wall be interference fitted；The High-pressure oil sealing is located at guide holder upper end, and low pressure oil sealing is located at high pressure
Oil sealing upper end limits High-pressure oil sealing position；The gasket is located at High-pressure oil sealing upper end；The limit base is located at gasket upper end, limits
Dust-proof ring position；The oil leakage sensor is located in limit base groove.
The guide holder of the utility model contains wedge insert, and wedge insert is full of fluid, wedge in shock absorbers extension stroke
Shape endoporus is close to stopper rod wall while still alive to the expansion of stopper rod direction, fluid adhesion is reduced on the piston rod, in shock absorbers compression stroke
Wedge insert is shunk, and increase and piston rod wall distance, accelerate fluid and be back to piston upper chamber, the low pressure oil sealing and High-pressure oil sealing
It is fitted close, further fluid is sealed；The dust-proof ring position of raised type is limited by limit base, prevents dust from entering vibration damping
Inside device；Oil leakage sensor in limit base groove is detected leakage oil mass, when oil leakage sensor signal reaches threshold
During value, damper leakage signal is exported.
The utility model has an advantageous effect in that：It can be very good to prevent shock absorber oil from letting out using multi-sealing device
Dew, oil leakage sensor can be detected the shock absorber oil of leakage, and limit base and guide holder week can be with filled with elastomeric material
Play the role of reducing hydraulic shock absorber work noise.
Brief description of the drawings
Fig. 1 is sealing device overall structure diagram.
Fig. 2 is oil leakage sensor fundamental diagram.
Fig. 3 is guide seat structure schematic diagram.
In figure, 1- piston rods；2- guide holders；3- oil traps；4- low pressure oil sealings；5- High-pressure oil sealings；6- dust rings；Use in 7- holes
Sealing ring；8- limit bases；9- oil leakage sensors；10- gaskets；11- elastomeric materials；12- emptying passages.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
According to Fig. 1,3：A kind of shock absorber sealing device of guide holder containing wedge insert, including piston rod（1）, be oriented to
Seat（2）, oil trap（3）, low pressure oil sealing（4）, High-pressure oil sealing（5）, dust ring（6）, hole sealing ring（7）, limit base（8）, leakage
Oil sensor（9）, gasket（10）, elastomeric material（11）, emptying passage（12）.
In the present embodiment, guide holder（2）Containing 45 ° of oblique angle wedge inserts, wedge insert upper end uses rounded corners, adopts
It is made of elastic polyurethane wear-resistant material, guide holder（2）Wedge insert can be expanded and shrink with damper impulse stroke, be played
First layer sealing function.
In the present embodiment, low pressure oil sealing（4）, High-pressure oil sealing (5) be located at gasket（11）Lower end, High-pressure oil sealing（5）Using
Double-lipped oil sealing, low pressure oil sealing（4）Using single lip oil sealing, High-pressure oil sealing（5）Pass through guide holder（2）And low pressure oil sealing（4）Limit
Position, further seals hydraulic shock absorber.
In the present embodiment, guide holder（2）Upper end and limit base（8）Week is filled with elastomeric material（11）Play buffering vibration
Impact and reduction work noise effect.
Below in conjunction with the accompanying drawings 1 and attached drawing 3 utility model works principle is described further：In shock absorbers extension stroke
Middle piston rod（1）Move up, the rise of piston upper oil cavitie oil pressure, guide holder（2）Wedge insert is full of fluid, and wedge insert is to work
Piston rod outer wall, oil trap are close in stopper rod expansion（3）And emptying passage（10）Unnecessary fluid is back to outer barrel of absorber, is led to
Cross low pressure oil envelope（4）The fluid for being adhered to piston rod upper end is sealed, High-pressure oil sealing（5）Whole work process is carried out close
Envelope, gasket（11）By guide holder（2）It is spacing, while support limit seat（8）And dust ring（6）, dust ring（6）Using raised type,
Prevent dust from entering.
When damper is in compression process, piston rod（1）Move down, piston upper oil cavitie is in low-pressure state, is oriented to
Seat（2）Wedge insert expands outwardly, increase piston rod (1) and guide holder（2）Distance so that fluid more returns to upper oil cavitie.
2 pairs of oil leakage sensor operation principles are described further below in conjunction with the accompanying drawings：The utility model oil leakage sensor is pacified
Mounted in limit base（8）In groove, conducting wire is from hole sealing ring（7）Into inside damper cylinder barrel, and certain in internal reservation
Conductor length, prevents the wire fracture in damper impulse stroke.Oil leakage sensor（9）With piston rod（1）Wall is in close contact, and is subtracted
When Leakage occurs for the device that shakes, oil leakage sensor absorbs the shock absorber oil of leakage, produces a voltage signal, when shock absorber oil damages
When reach 20-30ml, exception will occur for damper for mistake, therefore the voltage letter that when oil leakage sensor is absorbed 20ml shock absorber oils exports
Number it is stored in ECU for threshold value, when the voltage signal of oil leakage sensor output exceedes voltage threshold, computer exports damper
Oil leak signal is simultaneously shown on instrument board.
Claims (4)
1. a kind of shock absorber sealing device of guide holder containing wedge insert, including piston rod（1）, guide holder（2）, oil trap（3）、
Low pressure oil sealing（4）, High-pressure oil sealing（5）, dust ring（6）, hole sealing ring（7）, limit base（8）, oil leakage sensor（9）, gasket
（10）, elastomeric material（11）, emptying passage（12）, it is characterised in that：The guide holder（2）Contain wedge insert, guide holder
（2）It is equipped with low pressure oil sealing（4）, High-pressure oil sealing（5）；The gasket（10）Upper surface is equipped with limit base（8）, dust ring（6）.
A kind of 2. shock absorber sealing device of guide holder containing wedge insert according to claim 1, it is characterized in that described
Guide holder (2) is made of elastic polyurethane wear-resistant material, guide holder（2）Contain 45 ° of oblique angle wedge inserts, wedge insert upper end
Using rounded corners.
A kind of 3. shock absorber sealing device of guide holder containing wedge insert according to claim 1, it is characterized in that described
Oil leakage sensor（9）Installed in limit base（8）In groove and piston rod（1）Wall is in close contact.
A kind of 4. shock absorber sealing device of guide holder containing wedge insert according to claim 1, it is characterized in that described
Low pressure oil sealing（4）, High-pressure oil sealing (5) be located at gasket（10）Lower end, High-pressure oil sealing（5）Using double-lipped oil sealing, low pressure oil sealing（4）
Using single lip oil sealing, High-pressure oil sealing（5）Pass through guide holder（2）And low pressure oil sealing（4）It is spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721309823.8U CN207246314U (en) | 2017-10-12 | 2017-10-12 | A kind of shock absorber sealing device of the guide holder containing wedge insert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721309823.8U CN207246314U (en) | 2017-10-12 | 2017-10-12 | A kind of shock absorber sealing device of the guide holder containing wedge insert |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207246314U true CN207246314U (en) | 2018-04-17 |
Family
ID=61890968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721309823.8U Expired - Fee Related CN207246314U (en) | 2017-10-12 | 2017-10-12 | A kind of shock absorber sealing device of the guide holder containing wedge insert |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207246314U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489724A (en) * | 2017-10-12 | 2017-12-19 | 华东交通大学 | A kind of shock absorber sealing device of the guide holder containing wedge insert |
-
2017
- 2017-10-12 CN CN201721309823.8U patent/CN207246314U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489724A (en) * | 2017-10-12 | 2017-12-19 | 华东交通大学 | A kind of shock absorber sealing device of the guide holder containing wedge insert |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180417 Termination date: 20181012 |