CN2826078Y - Drum type hydraulic shock absorber - Google Patents
Drum type hydraulic shock absorber Download PDFInfo
- Publication number
- CN2826078Y CN2826078Y CN 200520015054 CN200520015054U CN2826078Y CN 2826078 Y CN2826078 Y CN 2826078Y CN 200520015054 CN200520015054 CN 200520015054 CN 200520015054 U CN200520015054 U CN 200520015054U CN 2826078 Y CN2826078 Y CN 2826078Y
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- CN
- China
- Prior art keywords
- valve
- compression
- piston
- compression valve
- rebuilt
- 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 relates to a drum type hydraulic shock absorber, wherein the valve sheets of which can not be blocked. An original rehabilitation valve and a compression valve in the drum type hydraulic shock absorber are respectively provided with the two valve sheets. When one of the two valve sheets is completely opened, the other one of the two valve sheets is closed; when the completely opened valve sheets are closed, the other valve sheets are partly opened. The two valve sheets which can only partly opened are easily blocked by metal dead small in damping oil to make a shock absorber ineffective. The restoration valve of the utility model comprises a piston valve body, a piston rod, a fastening nut, a rehabilitation valve sheet which is sheathed in the piston rod, a rehabilitation valve limitator, a rehabilitation valve spring and a rehabilitation valve spring seat. The compression valve comprises a compression valve seat, a compression valve sheet, a compression valve limitator, a compression valve spring and a compression valve spring seat. When a vehicle runs on an uneven point and is buffered by a shock absorber, shock absorption oil flows in or flows out from the same valve sheet. So even if clipped by the valve sheet, the metal dead small can be flushed away when the valve sheet is completely opened. The utility model solves the problem of the blocking of the valve sheet.
Description
Technical field
The utility model relates to a kind of raising vehicle run stability, especially improves the utensil of vehicle occupant ' travelling comfort, specifically a kind of utensil that reduces the vehicle vibrations.
Background technique
Present vibration damper mostly is hydraulic type greatly.Its agent structure comprises, parts such as clutch release slave cylinder, piston, guiding device, oil storage cylinder.These parts are coaxial layout.Its principle is: from the impact and the vibrations on road surface, the transmission by cylinder body moves reciprocatingly piston with respect to clutch release slave cylinder in clutch release slave cylinder, come flowing of Control work cylinder internal damping oil to realize damping shock absorption by the rebuilt valve and the compression valve that are arranged on the piston.Frequent friction between piston and the clutch release slave cylinder inwall makes clutch release slave cylinder and piston wear and produces the broken end of some metals.The wearing and tearing of attrition surface not only can be aggravated in these broken ends, but also can accumulate in together, stop up the valve block of rebuilt valve and compression valve, finally make damped valve malfunctioning.Rebuilt valve and compression valve (seeing Fig. 4,5) as existing a kind of hydraulic damper, when piston rod moves downward, valve block 30 is closed, and valve block 29 is opened fully, damping oil flows into clutch release slave cylinder inner carrier top from valve block 29, but when piston moved upward, valve block 29 was closed, damping oil can only flow into the clutch release slave cylinder bottom from valve block 30, and this moment, valve block 30 only can be opened a part.Therefore, when valve block 30 was closed once more, the broken end of metal in valve block 30 place's damping oils just may be clamped by valve block 30.In the course of time, valve block 30 will be stopped up by broken end.Equally, the compression valve place, valve block 31 can be opened fully, and valve block 32 then can only be opened a part, the valve block 32 same hidden danger of stopping up that exist.One when the valve block obstruction, and its function loses, and directly influences the performance of whole vibration damper, even makes defective shock absorber.
Summary of the invention
Technical problem to be solved in the utility model is to remedy above-mentioned defective, provides a kind of simple in structure to society, and vibration damper restores valve block and there is not the vibration damper that stops up hidden danger in the compression valve block.
The utility model is to realize like this, it comprises oil storage cylinder, clutch release slave cylinder, damping oil, the piston rod that clutch release slave cylinder, lower end are connected piston is stretched out in the piston of band rebuilt valve and upper end in the clutch release slave cylinder, the cushion pad of underpart of the piston rod, and the guiding device of anti-friction bearing is with in oil storage cylinder and clutch release slave cylinder upper end, oil sealing and sealing cover, lower end are compression valve and bottom.It is characterized in that: rebuilt valve comprises, the rebuilt valve snubber of the valve body of the band oil through that piston is filled the post of, piston rod, tightening nut, the recovery valve block that is inserted in piston rod, band oil through, withstands the rebuilt valve spring of rebuilt valve snubber and installs the spring seat of rebuilt valve spring.Compression valve comprises, the compression valve snubber of compression valve seat, compression valve block, band oil through, withstands the compression valve spring of compression valve snubber and installs the spring seat of compression valve spring.
In order to prevent vibration damper when the minimum stroke, the piston collisions compression valve causes that compression valve or rebuilt valve damage, and are provided with the protecting jacket that a powdered metallurgical material is made on the top layer of compression valve.In order to reduce the metal smalls after the wearing and tearing of piston rod and clutch release slave cylinder in the damping oil, be provided with magnetite in the valve seat bottom of compression valve.In order to reduce the friction between piston and clutch release slave cylinder inwall, the excesssive gap of the two of avoiding them simultaneously and leakage of oil, the outer surface of piston is installed the piston ring that a teflon is made.
Because the valve block in rebuilt valve and the compression valve is designed to a bascule, open fully and partially open all and finish by same valve, so, even clamped the broken end of metal in the valve block, when valve block is opened fully, smalls will be washed away by damping oil, just makes valve block return the original place by the snubber under the spring action then, has so just avoided the blocked disastrous effect that causes defective shock absorber of valve block.
Description of drawings
Fig. 1 is the utility model overall structure schematic representation (sectional view);
Fig. 2 is the utility model rebuilt valve structural representation (sectional view amplification);
Fig. 3 is the utility model compression valve structural representation (sectional view amplification);
Fig. 4 is a prior art rebuilt valve structural representation;
Fig. 5 is a prior art compression valve structural representation.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.The utility model comprises oil storage cylinder 5 (Fig. 1), clutch release slave cylinder 4, damping oil 6, the piston rod 7 that clutch release slave cylinder, lower end are connected piston is stretched out in the piston 11 of band rebuilt valve and upper end in the clutch release slave cylinder, the cushion pad 8 of underpart of the piston rod, cushion pad 8 are transferred stop collar 9 are installed, the guiding device 3 of oil storage cylinder and clutch release slave cylinder upper end band anti-friction bearing, oil sealing 2 and sealing cover 1, lower end are compression valve 12 and bottom 15.Its rebuilt valve 10 comprise valve body (Fig. 2), piston rod 7, the tightening nut 19 of the band oil through 20 (4) that piston 11 is filled the post of, the recovery valve block 21 that is inserted in piston rod, band oil through rebuilt valve snubber 18, withstand the rebuilt valve spring 22 of rebuilt valve snubber and install the spring seat 23 of rebuilt valve spring.Compression valve 12 comprises, the compression valve snubber 26 of compression valve seat 24 (Fig. 3), compression valve block 25, band oil through, withstands the compression valve spring 27 of compression valve snubber and the spring seat 28 of compression valve spring.When vehicle runs into high spot, cylinder body is to scend, and piston then moves downward and regulated, and piston 11 is when moving downward, damping oil is opened the valve block 21 of rebuilt valve fully, and damping oil flows in the clutch release slave cylinder of piston top from spring seat 28 rapidly by valve block 21 from the hole 20 on the piston.Simultaneously, valve block 25 places of compression valve also have the part damping oil to flow to the clutch release slave cylinder bottom.When vehicle ran into recess or crosses protruding place, cylinder body was downward with vehicle body, and piston moves upward and regulated.At this moment, rebuilt valve valve block 21 is opened some apertures, and compression valve valve block 25 is washed open fully.The damping oil of piston top and clutch release slave cylinder bottom all flows toward position between compression valve and the rebuilt valve.Valve block 21,25 so once partially opens, and opens fully a little while, and the metal smalls can not be clamped by the valve block place, has avoided the blocked drawback of valve block.
In addition, the outer surface of compression valve is provided with the protecting jacket 16 that a powdered metallurgical material is made, and prevents vibration damper when minimum stroke, piston collisions compression valve and rebuilt valve or compression valve are damaged.Magnetite 13 is installed in the base bottom of compression valve, and compression valve base bottom has hole 14 (three), settles one every 120 °, makes the metal smalls in its absorption damping oil, and the good damping oil of turbidity test is to alleviate the wearing and tearing of piston and clutch release slave cylinder.The outer surface of piston is installed piston ring 17 that a teflon is made to alleviate the friction between piston and the clutch release slave cylinder, prevents that simultaneously piston and gap, clutch release slave cylinder attrition surface place from increasing and leakage of oil.
Claims (4)
1. cylinder type hydraulic vibration damper, comprise oil storage cylinder (5), clutch release slave cylinder (4), damping oil (6), the piston rod (7) that clutch release slave cylinder, lower end are connected piston is stretched out in the piston (11) of band rebuilt valve and upper end in the clutch release slave cylinder, and the cushion pad of underpart of the piston rod (8) is with the guiding device (3) of anti-friction bearing on oil storage cylinder and the clutch release slave cylinder, oil sealing (2) and sealing cover (1), lower end are compression valve (12) and bottom (15); It is characterized in that, rebuilt valve (10) comprise valve body, piston rod (7), the tightening nut (19) of the band oil through that piston (11) is filled the post of, the recovery valve block (21) that is inserted in piston rod, band oil through rebuilt valve snubber (18), withstand the rebuilt valve spring (22) of rebuilt valve snubber and install the spring seat (23) of rebuilt valve spring; Compression valve (12) comprise compression valve seat (24), compression valve block (25), band oil through compression valve snubber (26), withstand the compression valve spring (27) of compression valve snubber and install the spring seat (28) of compression valve spring.
2. cylinder type hydraulic vibration damper as claimed in claim 1 is characterized in that, the external layer of described compression valve is provided with the protecting jacket (16) that a powdered metallurgical material is made.
3. cylinder type hydraulic vibration damper as claimed in claim 1 is characterized in that, the valve seat bottom of described compression valve (12) is installed on magnetite (13).
4. as the described cylinder type hydraulic vibration damper of any claim of claim 1 to 3, it is characterized in that the outer surface of piston (11) is installed the piston ring (17) that a teflon is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520015054 CN2826078Y (en) | 2005-09-22 | 2005-09-22 | Drum type hydraulic shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520015054 CN2826078Y (en) | 2005-09-22 | 2005-09-22 | Drum type hydraulic shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2826078Y true CN2826078Y (en) | 2006-10-11 |
Family
ID=37066263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520015054 Expired - Fee Related CN2826078Y (en) | 2005-09-22 | 2005-09-22 | Drum type hydraulic shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2826078Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089888A (en) * | 2011-11-01 | 2013-05-08 | 成都红美金属制品有限公司 | Automobile front shock absorber with high shock resistance |
-
2005
- 2005-09-22 CN CN 200520015054 patent/CN2826078Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089888A (en) * | 2011-11-01 | 2013-05-08 | 成都红美金属制品有限公司 | Automobile front shock absorber with high shock resistance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Nanfang Shock Absorber Manufacture Co., Ltd. Assignor: Li Mingfu Contract fulfillment period: 2009.8.18 to 2014.8.18 Contract record no.: 2009330002194 Denomination of utility model: Tubular hydraulic damper Granted publication date: 20061011 License type: Exclusive license Record date: 20090827 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.8.18 TO 2014.8.18; CHANGE OF CONTRACT Name of requester: SHOCK ABSORBER MANUFACTURING CO. Effective date: 20090827 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061011 Termination date: 20130922 |