CN202252122U - Improved lathe oil distribution valve assembly - Google Patents
Improved lathe oil distribution valve assembly Download PDFInfo
- Publication number
- CN202252122U CN202252122U CN2011204032982U CN201120403298U CN202252122U CN 202252122 U CN202252122 U CN 202252122U CN 2011204032982 U CN2011204032982 U CN 2011204032982U CN 201120403298 U CN201120403298 U CN 201120403298U CN 202252122 U CN202252122 U CN 202252122U
- Authority
- CN
- China
- Prior art keywords
- valve body
- head end
- spool
- valve core
- end bearing
- 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 discloses an improved lathe oil distribution valve assembly, which comprises a valve body and an oil cylinder, wherein a valve core and a piston are arranged in the valve body, the front part and the back part of the valve body are respectively provided with an end cover and a back cover, the tail end of the valve core is provided with a tail end bearing, and the head end Y-shaped oil seal part of the valve core is provided with a head end bearing. Because the head end of the valve core is provided with the head end bearing, two ends of the valve core are respectively supported by the tail end bearing and the head end bearing, the positioning is stable, the rotation stress is uniform, the abrasion between the valve core and the valve body is reduced, and the service life is prolonged. When the replacement is needed, only the bearings are replaced, the valve body and the valve core do not need to be replaced. The inner diameter of a front end cover of the corresponding clamping oil cylinder is enlarged, the diameter sealing is changed into the end surface pressing sealing, and the oil leakage caused by abrasion is reduced.
Description
Technical field
The utility model relates to a kind of separating valve, relates in particular to a kind of separating valve of the C7620 of being used for lathe.
Background technique
As everyone knows, the separating valve on the lathe comprises valve body, oil cylinder; Be provided with spool and piston in the valve body, the spool tail end is provided with bearings rotation, and head end is with a Y type oil sealing; The front and back of valve body are respectively equipped with end cap and bonnet; Spool chamber is provided with an oil inlet hole and an oil outlet, and the spool chamber wall is provided with into and out of oily circular groove and piston cavity oilhole circular groove, and spool chamber oil outlet and upper piston chamber oilhole are communicated with by fuel-displaced circular groove; Spool this communicating space when fuel-displaced position is communicated with oil inlet hole and lower piston chamber oilhole, and spool is communicated with lower piston chamber oilhole and upper piston chamber oilhole when reset position.Find through author's long practice; Because the spool tail end only is provided with bearings rotation, head end is with a Y type oil sealing, and the location is unstable; Radially rotate stressed make spool and valve body wearing and tearing quickening; The gap increase causes leakage of oil to use, and therefore, the design of the lathe separating valve assembly of this structure is reasonable inadequately.
Summary of the invention
The purpose of the utility model provides a kind of rational in infrastructure, and the spool rotation is stressed evenly, reduces the wearing and tearing between spool and the valve body, reduces leakage of oil, the separating valve assembly that increases the service life.
The purpose of the utility model realizes through following technological scheme; This lathe separating valve assembly comprises valve body, oil cylinder; Be provided with spool and piston in the valve body; The front and back of valve body are respectively equipped with end cap and bonnet, and the spool tail end is provided with a tail end bearing, and the place is provided with a head end bearing at the head end Y of spool type oil sealing.
Relative prolongation valve body and spool owing to be provided with a head end bearing at the spool head end, spool two is supported by tail end bearing and head end bearing respectively, positioning stablity, rotate stressed even, the wearing and tearing between minimizing spool and the valve body.
The beneficial effect of the utility model: have only tail end one cover bearing to support with traditional separating valve assembly and compare; Separating valve assembly after the improvement is owing to be provided with a head end bearing at the spool head end; Spool two is supported by tail end bearing and head end bearing respectively, and positioning stablity rotates stressed even; Reduce the wearing and tearing between spool and the valve body, prolonged working life.As need to change, only changing bearing, valve body, spool do not need to change; Corresponding clamping cylinder front cover internal diameter increasing changes end face into by the diameter sealing and compresses sealing, and leakage of oil reduces wear.
Description of drawings
Specify the embodiment of the utility model below in conjunction with accompanying drawing
Fig. 1 is the sectional view of the utility model
Fig. 2 is the sectional view of the separating valve assembly before improving
Among the figure: 1, valve body 2, oil cylinder 3, spool 4, piston 5, end cap 6, bonnet 7, tail end bearing 8, Y type oil sealing 9, head end bearing
Embodiment
As shown in Figure 1; This lathe separating valve assembly comprises valve body 1, oil cylinder 2, is provided with spool 3 and piston 4 in the valve body 1, and the front and back of valve body 1 are respectively equipped with end cap 5 and bonnet 6; The spool tail end is provided with a tail end bearing 7, and 8 places are provided with a head end bearing 9 at the head end Y of spool 3 type oil sealing.
Relative prolongation valve body and spool owing to be provided with a head end bearing 9 at spool 3 head ends, spool 3 two receive tail end bearing 7 and 9 supportings of head end bearing respectively, positioning stablity, rotate stressed evenly, the wearing and tearing between minimizing spool and the valve body.
Claims (1)
1. improved lathe separating valve assembly; This lathe separating valve assembly comprises valve body, oil cylinder, is provided with spool and piston in the valve body, and the front and back of valve body are respectively equipped with end cap and bonnet; The spool tail end is provided with a tail end bearing, it is characterized in that being provided with a head end bearing at the head end Y of spool type oil sealing place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204032982U CN202252122U (en) | 2011-10-13 | 2011-10-13 | Improved lathe oil distribution valve assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204032982U CN202252122U (en) | 2011-10-13 | 2011-10-13 | Improved lathe oil distribution valve assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202252122U true CN202252122U (en) | 2012-05-30 |
Family
ID=46113365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204032982U Expired - Fee Related CN202252122U (en) | 2011-10-13 | 2011-10-13 | Improved lathe oil distribution valve assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202252122U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268575A (en) * | 2017-07-18 | 2019-01-25 | 无锡市德美嘉机械科技有限公司 | Interchangeable spool Guiding wheel structure |
-
2011
- 2011-10-13 CN CN2011204032982U patent/CN202252122U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268575A (en) * | 2017-07-18 | 2019-01-25 | 无锡市德美嘉机械科技有限公司 | Interchangeable spool Guiding wheel structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20121013 |