CN2610134Y - Slide valve distributor - Google Patents
Slide valve distributor Download PDFInfo
- Publication number
- CN2610134Y CN2610134Y CN 02268169 CN02268169U CN2610134Y CN 2610134 Y CN2610134 Y CN 2610134Y CN 02268169 CN02268169 CN 02268169 CN 02268169 U CN02268169 U CN 02268169U CN 2610134 Y CN2610134 Y CN 2610134Y
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing
- guiding valve
- oil
- slide valve
- 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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- Check Valves (AREA)
Abstract
The utility model relates to an improved slide valve allocate, which technical solution is that a one way valve and a down valve are parallel connected and located at the allocate, hydraulic pressure sealing function is changed, the slide valve volume gap sealing is changed into steel ball tapered sealing, the hydraulic pressure oil can achieve absolute sealing. The solution is good in leakproofness, simple in manufacture and long in service life.
Description
Affiliated technical field
The utility model relates to a kind of constituent elements guiding valve distributor of middle fraction horsepower tractor lifter.
Background technique
Existing guiding valve dispensing arrangement is simpler and easy, and three working position liftings, neutrality and declines are to connect the interior different oil ducts realizations of valve body by guiding valve, and the sealing of hydraulic oil mainly leans on the matching gap of guiding valve and valve body hole to guarantee.There is following problem in it: 1. slide valve circle cylinder and valve body hole machining accuracy are higher, and matching gap is little, is easy to generate clamping stagnation; 2. owing to adopt the cylndrical surface clearance seal, hydraulic oil can not be accomplished to seal fully; 3. guiding valve port for drawdown place " washing away " wearing and tearing easily, leakage rate increases.Thereby there is the shortcoming that difficulty of processing is big, sealing is poor, working life is low in existing guiding valve distributor.
Summary of the invention
In order to overcome the deficiency that existing guiding valve distributor difficulty of processing is big, sealing is poor, working life is low, the utility model provides a kind of guiding valve distributor that improves design, and this guiding valve distributor can change the hydraulic seal mode, and hydraulic oil can be accomplished to seal fully.
The technological scheme that its technical problem that solves the utility model adopts is: in the oil cylinder in-line of guiding valve distributor in line check valve is set, is made up of big spring and big steel ball; In the oil cylinder oil circuit, lowering valve is set, forms by push rod, valve seat, small ball and little spring.Oil cylinder fluid is by big steel ball and small ball sealing.This structure seals the tapering that original slide valve circle cylinder clearance seal becomes steel ball, and hydraulic oil can be accomplished to seal fully.
The beneficial effects of the utility model are, can improve the sealing of guiding valve distributor well, and manufacturing simultaneously is easy, long service life.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Accompanying drawing is a schematic representation of the present utility model.
Among the figure: 1. handle, 2. valve body, 3. guiding valve, 4. big spring, 5. big steel ball, 6. push rod, 7. valve seat, 8. small ball, 9. little spring, 10. protecgulum.
Embodiment
Handle (1) is when stirring left, and guiding valve (3) is shifted to left end, and oil pump enters the oil cylinder oil duct after coming oil to push the big steel ball of one-way valve (5) open, realizes promoting.
In the time of in the middle of handle (1) is dialled back, in the middle of guiding valve (3) is retracted, cut off the oil cylinder oil circuit, oil pump comes oil to flow back to fuel tank from guiding valve (3) right-hand member oil groove, realizes neutral.The hydraulic oil of oil cylinder is by two oil circuit sealings of parallel connection simultaneously, one the tunnel is sealed by big steel ball (5) under the effect of hydraulic oil and big spring (4), by small ball (8) sealing, two-way is the sealing of steel ball tapering under the effect of hydraulic oil and little spring (9) on another road, and sealing is reliable fully.The cylndrical surface matching gap of guiding valve (3) does not play the seal action of oil cylinder hydraulic oil.
Handle (1) is when stirring to the right, and guiding valve (3) moves on to right-hand member, pushes small ball (8) open with the push rod (6) that guiding valve (3) is fixed together, and lowering valve is got through, and oil cylinder hydraulic oil flows back to fuel tank, realizes descending.
Claims (2)
1, a kind of guiding valve distributor is characterized in that: set up big spring (4) and big steel ball (5) and form in line check valve on valve body (2), set up push rod (6), valve seat (7), small ball (8) and little spring (9) and form lowering valve on protecgulum (10).
2, guiding valve distributor according to claim 1 is characterized in that one-way valve and lowering valve are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02268169 CN2610134Y (en) | 2002-07-17 | 2002-07-17 | Slide valve distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02268169 CN2610134Y (en) | 2002-07-17 | 2002-07-17 | Slide valve distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2610134Y true CN2610134Y (en) | 2004-04-07 |
Family
ID=34150280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02268169 Expired - Fee Related CN2610134Y (en) | 2002-07-17 | 2002-07-17 | Slide valve distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2610134Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063493B (en) * | 2006-04-24 | 2010-05-26 | 伊利诺斯器械工程公司 | Spool valve and valve seat assembly for an intermittently operable hot melt adhesive material control module |
| CN102878140A (en) * | 2012-10-24 | 2013-01-16 | 山东潍坊鲁中拖拉机有限公司 | Hydraulic distributer |
-
2002
- 2002-07-17 CN CN 02268169 patent/CN2610134Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063493B (en) * | 2006-04-24 | 2010-05-26 | 伊利诺斯器械工程公司 | Spool valve and valve seat assembly for an intermittently operable hot melt adhesive material control module |
| CN102878140A (en) * | 2012-10-24 | 2013-01-16 | 山东潍坊鲁中拖拉机有限公司 | Hydraulic distributer |
| CN102878140B (en) * | 2012-10-24 | 2015-04-29 | 山东潍坊鲁中拖拉机有限公司 | Hydraulic distributer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |