CN202579991U - Valve core seat and automatic gearbox - Google Patents
Valve core seat and automatic gearbox Download PDFInfo
- Publication number
- CN202579991U CN202579991U CN 201220216586 CN201220216586U CN202579991U CN 202579991 U CN202579991 U CN 202579991U CN 201220216586 CN201220216586 CN 201220216586 CN 201220216586 U CN201220216586 U CN 201220216586U CN 202579991 U CN202579991 U CN 202579991U
- Authority
- CN
- China
- Prior art keywords
- valve core
- core case
- valve
- hole
- spool
- 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 - Lifetime
Links
Images
Landscapes
- Control Of Transmission Device (AREA)
Abstract
The utility model relates to a valve core seat which comprises a valve body, wherein the valve body is provided with a valve cavity, and a valve core is arranged in the valve cavity. The valve core seat is fixedly arranged on the end portion of the valve cavity. A spring is arranged between the valve core seat and the valve core. A step through hole is arranged in the valve core seat, and penetrates through the valve core seat and a cone-shaped protrusion. One end with a small bore diameter of the step through hole faces the valve core direction, and the other end with a large bore diameter of the step through hole faces the direction opposite to the valve core direction. The step through hole has a damping effect so movement and performance of the valve core are pretty stable. A small cone face of the cone-shaped protrusion is fixedly connected with the valve core seat, and a large cone face of the cone-shaped protrusion is far away from the valve core seat, and therefore the valve core seat is fixedly connected with the valve body.
Description
Technical field
The utility model relates to a kind of valve core case, is applicable to automatic transmission, specifically, relates to a kind of valve core case and automatic transmission, belongs to field of mechanical technique.
Background technique
In the hydraulic control system of automatic transmission, the stability of control valve is a key performance of hydraulic control system.
In realizing process of the present invention, the inventor finds to have following problem in the existing technology at least, and the valve core case of control valve is open in the existing technology, can't regulate the size of damping, and stability is poor.
The model utility content
The technical problem that the utility model will solve is to above deficiency; A kind of valve core case and automatic transmission are provided; Overcome the size that open valve core case can't be regulated damping in the existing technology, the defective that stability is poor is behind employing the utility model valve core case; Can regulate the size of damping, stability is high.
Another purpose of the utility model provides a kind of automatic transmission of using said valve core case.
For solving above technical problem; The utility model adopts following technological scheme: a kind of valve core case, comprise valve body, and valve body has valve pocket; Be provided with spool in the valve pocket; It is characterized in that: the end of said valve pocket is set with a valve core case, is provided with step through-hole in the valve core case, and step through-hole runs through valve core case.
A kind of optimized project, small aperture one end of said step through-hole are towards the spool direction, and large aperture one end of step through-hole is towards the direction away from spool.
Another kind of optimized project is provided with spring between said valve core case and the spool.
Another optimized project, said valve core case is provided with tapered protrusion, and step through-hole runs through tapered protrusion.
Further optimized project, said tapered protrusion have a little conical surface and the big conical surface.
The little conical surface of said tapered protrusion is fixedly connected with valve core case, and the big conical surface of tapered protrusion is away from valve core case.
Be provided with " R " type spring clip between said valve body and the tapered protrusion.
Said valve body is provided with jack, and " R " type spring clip can insert in the jack and with tapered protrusion and cooperate.
Based on above-mentioned valve core case, the utility model provides a kind of automatic transmission that adopts said valve core case design again.
The utility model is taked above technological scheme, compared with prior art, has the following advantages: when spool laterally in the moving process; Pressure spring, the smaller volume of valve pocket, the hydraulic oil in the valve pocket is drained from step through-hole; Because the small aperture of step through-hole one end is towards the spool direction, large aperture one end of step through-hole is towards the direction away from spool, so step through-hole has damping function; Make the mobile more steady of spool, stable performance.The little conical surface of tapered protrusion is fixedly connected with valve core case, and the big conical surface of tapered protrusion is away from valve core case, so valve core case and valve body are connected firmly convenient disassembly.
The utility model is described further with implementing below in conjunction with accompanying drawing.
Description of drawings
Accompanying drawing 1 is the structural representation of valve core case among the utility model embodiment 1;
Accompanying drawing 2 is the structural representation of valve core case among the utility model embodiment 2;
Accompanying drawing 3 be in the accompanying drawing 2 A-A to structural representation;
Accompanying drawing 4 is the partial enlarged drawing of accompanying drawing 2;
Among the figure,
The 1-valve core case, 2-" R " type spring clip, 3-jack, 4-step through-hole, 5-spring, 6-spool, 7-valve pocket, 8-valve body, 9-tapered protrusion.
Embodiment
When spool laterally in the moving process, pressure spring, the smaller volume of valve pocket; Hydraulic oil in the valve pocket is drained from step through-hole; Because the small aperture of step through-hole one end is towards the spool direction, large aperture one end of step through-hole is towards the direction away from spool, so step through-hole has damping function; Make the mobile more steady of spool, stable performance.
" R " type spring clip can directly insert from jack and cooperate with tapered protrusion 9, installs than being easier to; When spool laterally in the moving process, pressure spring, the smaller volume of valve pocket; Hydraulic oil in the valve pocket is drained from step through-hole; Because the small aperture of step through-hole one end is towards the spool direction, large aperture one end of step through-hole is towards the direction away from spool, so step through-hole has damping function; Make the mobile more steady of spool, stable performance.The little conical surface of tapered protrusion is fixedly connected with valve core case, and the big conical surface of tapered protrusion is away from valve core case, so valve core case and valve body are connected firmly convenient disassembly.
When spool laterally in the moving process, pressure spring, the smaller volume of valve pocket; Hydraulic oil in the valve pocket is drained from step through-hole; Because the small aperture of step through-hole one end is towards the spool direction, large aperture one end of step through-hole is towards the direction away from spool, so step through-hole has damping function; Make the mobile more steady of spool, stable performance.
" R " type spring clip can directly insert from jack and cooperate with tapered protrusion 9, installs than being easier to; When spool laterally in the moving process, pressure spring, the smaller volume of valve pocket; Hydraulic oil in the valve pocket is drained from step through-hole; Because the small aperture of step through-hole one end is towards the spool direction, large aperture one end of step through-hole is towards the direction away from spool, so step through-hole has damping function; Make the mobile more steady of spool, stable performance.The little conical surface of tapered protrusion is fixedly connected with valve core case, and the big conical surface of tapered protrusion is away from valve core case, so valve core case and valve body are connected firmly convenient disassembly.
Those skilled in the art will recognize that; Above-mentioned embodiment is exemplary; Be in order to make those skilled in the art can better understand the utility model content; Should not be construed as is the restriction to the utility model protection domain, so long as the improvement of being done according to the utility model technological scheme, all falls into the protection domain of the utility model.
Claims (9)
1. valve core case; Comprise valve body (8); Valve body (8) has valve pocket (7), is provided with spool (6) in the valve pocket (7), it is characterized in that: the end of said valve pocket (7) is set with a valve core case (1); Be provided with step through-hole (4) in the valve core case (1), step through-hole (4) runs through valve core case (1).
2. a kind of valve core case as claimed in claim 1 is characterized in that: small aperture one end of said step through-hole (4) is towards spool (6) direction, and large aperture one end of step through-hole (4) is towards the direction away from spool (6).
3. a kind of valve core case as claimed in claim 2 is characterized in that: be provided with spring (5) between said valve core case (1) and the spool (6).
4. like one of them described a kind of valve core case of claim 1-3, it is characterized in that: said valve core case (1) is provided with tapered protrusion (9), and step through-hole (4) runs through tapered protrusion (9).
5. a kind of valve core case as claimed in claim 4 is characterized in that: said tapered protrusion (9) has a little conical surface and the big conical surface.
6. a kind of valve core case as claimed in claim 5 is characterized in that: the little conical surface of said tapered protrusion (9) is fixedly connected with valve core case (1), and the big conical surface of tapered protrusion (9) is away from valve core case (1).
7. a kind of valve core case as claimed in claim 6 is characterized in that: be provided with " R " type spring clip (2) between said valve body (8) and the tapered protrusion (9).
8. a kind of valve core case as claimed in claim 7 is characterized in that: said valve body (8) is provided with jack (3), and " R " type spring clip (2) can insert in the jack (3) and with tapered protrusion (9) and cooperate.
9. automatic transmission, it is characterized in that: said automatic transmission comprises each described valve core case like claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220216586 CN202579991U (en) | 2012-05-15 | 2012-05-15 | Valve core seat and automatic gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220216586 CN202579991U (en) | 2012-05-15 | 2012-05-15 | Valve core seat and automatic gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202579991U true CN202579991U (en) | 2012-12-05 |
Family
ID=47249404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220216586 Expired - Lifetime CN202579991U (en) | 2012-05-15 | 2012-05-15 | Valve core seat and automatic gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202579991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244492A (en) * | 2012-12-29 | 2013-08-14 | 柳州柳工液压件有限公司 | Tee-joint pressure compensator of metering pump load-sensitive hydraulic system |
-
2012
- 2012-05-15 CN CN 201220216586 patent/CN202579991U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244492A (en) * | 2012-12-29 | 2013-08-14 | 柳州柳工液压件有限公司 | Tee-joint pressure compensator of metering pump load-sensitive hydraulic system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102374204B (en) | A kind of magnetorheological pilot-operated overflow valve | |
| CN202579991U (en) | Valve core seat and automatic gearbox | |
| CN103851241A (en) | Direct-acting overflow valve | |
| CN204942640U (en) | The inserted horizontal check valve of flap | |
| CN103573733B (en) | A kind of buffering pressure maintaining valve for oil hydraulic motor | |
| CN202767943U (en) | Screw pump oil well safe pressure relief device | |
| CN204647102U (en) | The reversing bar Returnning spring mounting structure of OCV valve | |
| CN204828400U (en) | Low start -up pressure piston structure | |
| CN204704415U (en) | A kind of floating valve seat structure of two way sealed eccentric half-ball valve | |
| CN203594639U (en) | Novel buffering pressure stabilizing valve used for hydraulic motor | |
| CN203161698U (en) | Pilot oil delivery valve | |
| CN203297484U (en) | Throttling valve sheet of shock absorber | |
| CN202691277U (en) | Valve rod connecting sleeve | |
| CN202546004U (en) | Dual locking device for valve core assembly | |
| CN202811361U (en) | Gear structure for air compressor | |
| CN203532389U (en) | Two-way cartridge valve | |
| CN208845708U (en) | A kind of piston with limit hole | |
| CN202971725U (en) | Adjusting air spring seal device | |
| CN203308819U (en) | Novel electric flow valve | |
| CN201363386Y (en) | Compression valve system structure of shock absorber of heavy truck | |
| CN203051513U (en) | Dustproof bearing seat | |
| CN204942381U (en) | A kind of pure valve plate-type bottom valve | |
| CN201532051U (en) | Refrigeration member | |
| CN203488336U (en) | Piston pin, capable of being rapidly installed, of air compressor | |
| CN205298521U (en) | Piston |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |