CN202360491U - Flow control valve for hydraulic valve plate of automatic transmission - Google Patents
Flow control valve for hydraulic valve plate of automatic transmission Download PDFInfo
- Publication number
- CN202360491U CN202360491U CN2011204748992U CN201120474899U CN202360491U CN 202360491 U CN202360491 U CN 202360491U CN 2011204748992 U CN2011204748992 U CN 2011204748992U CN 201120474899 U CN201120474899 U CN 201120474899U CN 202360491 U CN202360491 U CN 202360491U
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- China
- Prior art keywords
- oil
- valve
- spool
- valve spool
- flow control
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Abstract
The utility model discloses a flow control valve for a hydraulic valve plate of an automatic transmission, which comprises a valve body. A valve cavity is arranged in the valve body, an oil inlet and an oil outlet are arranged on the valve body, an outer valve spool and a valve spool are disposed in the valve cavity, an inner valve cavity is arranged in the outer valve spool, an annular oil guiding groove and a radial oil channel are disposed on the outer periphery of the outer valve spool, and the oil guiding groove is communicated with the inner valve cavity via the radial oil channel; a valve stem is disposed at the right end of the valve spool and is arranged in the inner valve cavity, a resetting device is arranged between the left end of the valve spool and the valve body, residual oil enters the oil guiding groove via the oil inlet, an inner valve spool moves leftwards, oil at the oil inlet flows to an orifice plug via the oil guiding groove, the radial oil channel, an annular groove and an oil duct and has a lubricating effect, as the aperture of an oil outlet of the orifice plug is small, oil at the right end of the outer valve spool applies leftward acting force to the outer valve spool, the outer valve spool moves leftwards, the oil outlet is communicated with the oil inlet, the oil enters an oil inlet of the oil pump via the oil outlet, and accordingly effects of adjusting flow and reducing pressure are realized.
Description
Technical field
The utility model relates to a kind of multi-speed automatic transmission, specifically, relates to a kind of automatic transmission hydraulic pressure valve plate and uses flow control valve, belongs to field of mechanical technique.
Background technique
In the hydraulic control unit of multidrive, gear pump is used very extensive, is characterized in that flow is directly proportional with rotating speed; Speed changer within the specific limits; Flow requirements there is a maximum value, when flow is higher than the greatest requirements of speed changer, for energy-conservation; Need reduce flow, generally flow control valve need be set; In order to solve when oil duct stops up, the jammed problem of equipment, the safety valve emptying need be set again, to improve Safety performance, flow control valve and safety valve draining so just need be set, cause the process-cycle of traditional automatic transmission long, cost is high.
The model utility content
The technical problem that the utility model will solve is to above deficiency, provide a kind of simple in structure, can realize that flow and pressure controlled automatic transmission hydraulic pressure valve plate use flow control valve.
For solving the above problems, the utility model adopts following technological scheme: a kind of automatic transmission hydraulic pressure valve plate is used flow control valve, comprises valve body, in valve body, is provided with valve pocket, on valve body, is provided with filler opening and oil outlet, it is characterized in that:
Be provided with outer spool and spool in the said valve pocket, be provided with internal valve cavity in the outer spool, the excircle of outer spool is provided with the oil guide slot of annular and the radial direction oil that is communicated with oil guide slot and internal valve cavity;
The right part of said spool is provided with valve rod, and valve rod is arranged in the internal valve cavity, is provided with resetting means between the left part of spool and the valve body.
Further improvement as technique scheme:
The end of said valve rod is provided with circular groove, and circular groove is communicated with radial direction oil and internal valve cavity.
Said resetting means is a spring.
The left part of said valve body is provided with baffle plate.
Said two ends of valve body portion is provided with circlip respectively.
The utility model is taked above technological scheme, compared with prior art, has the following advantages: under the normal condition; Oil guide slot is communicated with filler opening, ends with oil outlet, when oil pump supply valve leaf fat flow quantity is too much; Unnecessary oil gets in the oil guide slot through filler opening, because oil pocket and circular groove exist the cross section poor, makes inner spool be moved to the left; This moment, the filler opening place came oil to pass through oil guide slot, radial direction oil, circular groove, oil duct to orifice plug, played lubrication, because the aperture of orifice plug oil outlet is little; Fluid can not all spill out lubricated once, and therefore the fluid of outer spool right part can impose on active force left of outer spool, and outer spool is moved to the left; Oil outlet communicates with filler opening, and fluid gets into the oil pump filler opening again through oil outlet, thereby has played the adjusting flow; Reduce the effect of pressure, make system works safer.
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 flow control valve among the utility model embodiment;
Among the figure,
The 1-baffle plate, 2-spring, 3-valve body, the outer spool of 4-, 5-spool, 6-circlip, 7-oil outlet, 8-filler opening, 9-orifice plug, 10-valve pocket, 11-internal valve cavity, 12-oil guide slot, 13-radial direction oil, 14-valve rod, 15-circular groove, 16-oil duct.
Embodiment
Embodiment, as shown in Figure 1, a kind of automatic transmission hydraulic pressure valve plate is used flow control valve; Comprise valve body 3, in valve body 3, be provided with valve pocket 10, outer spool 4 and spool 5 are installed in the valve pocket 10; On the excircle of valve body 3 right parts, be provided with filler opening 8 and oil outlet 7 successively, filler opening 8 is communicated with the oil pump oil outlet, and oil outlet 7 is communicated with the oil pump filler opening; Be provided with internal valve cavity 11 in the outer spool 4, the excircle of outer spool 4 is provided with the oil guide slot 12 of annular and the radial direction oil 13 that is communicated with oil guide slot 12 and internal valve cavity 11, when outer spool 4 is moved to the left; Oil guide slot 12 is communicated with filler opening 8 and oil outlet 7, and the right part of spool 5 is provided with valve rod 14, and valve rod 14 is arranged in the internal valve cavity 11; Be provided with resetting means in the valve pocket 10 between the left part of spool 5 and valve body 3 left parts, resetting means is a spring 2
The left part of valve body 3 is provided with baffle plate 1, and the two end part of valve body 3 are provided with circlip 6, and the afterbody of valve rod 14 is provided with circular groove 15, and circular groove 15 is communicated with radial direction oil 13 and internal valve cavity 11.
During application, valve body 3 is installed on the gear box casing, and links to each other with orifice plug 9 through oil duct 16, orifice plug 9 connects lubricating oil path; Under the normal condition, oil guide slot 12 is communicated with filler opening 8, ends with oil outlet 7; When oil pump supply valve leaf fat flow quantity was too much, unnecessary oil got in the oil guide slot 12 through filler opening 8, because 13 oil pockets and 15 circular grooves exist the cross section poor; Make inner spool 5 be moved to the left, this moment, filler opening 8 places came oil through oil guide slot 12, radial direction oil 13, circular groove 15, oil duct 16 to orifice plug 9, played lubrication; Because the aperture of orifice plug 9 oil outlets is little, fluid can not all spill out lubricated once, and therefore the fluid of outer spool 4 right parts can impose on 4 one active forces left of outer spool; Outer spool 4 is moved to the left, and oil outlet 7 communicates with filler opening 8, and fluid gets into the oil pump filler opening again through oil outlet 7; Thereby played the adjusting flow, reduced the effect of pressure, made system works safer.
Claims (5)
1. an automatic transmission hydraulic pressure valve plate is used flow control valve, comprises valve body (3), in valve body (3), is provided with valve pocket (10), on valve body (3), is provided with filler opening (8) and oil outlet (7), it is characterized in that:
Be provided with outer spool (4) and spool (5) in the said valve pocket (10); Be provided with internal valve cavity (11) in the outer spool (4), the excircle of outer spool (4) is provided with the oil guide slot (12) of annular and the radial direction oil (13) that is communicated with oil guide slot (12) and internal valve cavity (11);
The right part of said spool (5) is provided with valve rod (14), and valve rod (14) is arranged in the internal valve cavity (11), is provided with resetting means between the left part of spool (5) and the valve body (3).
2. a kind of automatic transmission hydraulic pressure valve plate as claimed in claim 1 is used flow control valve, and it is characterized in that: the end of said valve rod (14) is provided with circular groove (15), and circular groove (15) is communicated with radial direction oil (13) and internal valve cavity (11).
3. according to claim 1 or claim 2 a kind of automatic transmission hydraulic pressure valve plate is used flow control valve, and it is characterized in that: said resetting means is spring (2).
4. a kind of automatic transmission hydraulic pressure valve plate as claimed in claim 3 is used flow control valve, and it is characterized in that: the left part of said valve body (3) is provided with baffle plate (1).
5. a kind of automatic transmission hydraulic pressure valve plate as claimed in claim 4 is used flow control valve, and it is characterized in that: the two end part of said valve body (3) are provided with circlip (6) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204748992U CN202360491U (en) | 2011-11-25 | 2011-11-25 | Flow control valve for hydraulic valve plate of automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204748992U CN202360491U (en) | 2011-11-25 | 2011-11-25 | Flow control valve for hydraulic valve plate of automatic transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202360491U true CN202360491U (en) | 2012-08-01 |
Family
ID=46571680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204748992U Expired - Lifetime CN202360491U (en) | 2011-11-25 | 2011-11-25 | Flow control valve for hydraulic valve plate of automatic transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202360491U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358859A (en) * | 2014-11-24 | 2015-02-18 | 盛瑞传动股份有限公司 | Planet row lubricating system for gearbox |
| CN104776075A (en) * | 2014-01-14 | 2015-07-15 | 卡特彼勒（青州）有限公司 | Hydraulic valve and loader including same |
| CN108703880A (en) * | 2018-06-12 | 2018-10-26 | 唐静 | Stereoscopic localized type physical therapy device |
-
2011
- 2011-11-25 CN CN2011204748992U patent/CN202360491U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776075A (en) * | 2014-01-14 | 2015-07-15 | 卡特彼勒（青州）有限公司 | Hydraulic valve and loader including same |
| CN104358859A (en) * | 2014-11-24 | 2015-02-18 | 盛瑞传动股份有限公司 | Planet row lubricating system for gearbox |
| CN108703880A (en) * | 2018-06-12 | 2018-10-26 | 唐静 | Stereoscopic localized type physical therapy device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120801 |
|
| CX01 | Expiry of patent term |