CN2846833Y - Oil feeding valve for test machine - Google Patents
Oil feeding valve for test machine Download PDFInfo
- Publication number
- CN2846833Y CN2846833Y CN 200520075453 CN200520075453U CN2846833Y CN 2846833 Y CN2846833 Y CN 2846833Y CN 200520075453 CN200520075453 CN 200520075453 CN 200520075453 U CN200520075453 U CN 200520075453U CN 2846833 Y CN2846833 Y CN 2846833Y
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- CN
- China
- Prior art keywords
- valve body
- valve
- chamber
- left end
- hand member
- 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 an oil feeding valve for a test machine, which belongs to a hydraulic driving mechanism. The utility model has the structure that the left end of a valve body is provided with an adjusting seat, and the adjusting seat is connected with an adjusting rod through threads in a matching way. A valve sleeve is arranged in the valve body, and a valve core which can slide is arranged in the valve sleeve. The right end of the valve body is provided with a connecting sleeve, and a spring is arranged in the connecting sleeve. An oil feeding cavity is arranged between the left end of the valve sleeve and the valve body, and an adjusting cavity is arranged between an oil feeding cavity in the valve body and the adjusting seat. A valve clack formed on the valve body between the adjusting cavity and the oil feeding cavity is provided with a hole, and a conical section at the right end of the adjusting rod can enter the hole. The utility model is characterized in that the valve body at the left end of the valve sleeve is provided with a valve seat, wherein an O-shaped sealing ring is arranged between the valve seat and the valve body, and a non-metal reinforcing ring is arranged near the right side of the O-shaped sealing ring and between the valve sleeve and the valve body. The utility model can improve the sealing performance of an oil feeding valve, and enhance the work efficiency of an oil feeding valve.
Description
Technical field
The utility model belongs to a kind of hydraulic drive mechanism, refers in particular to a kind of fuel tap that send.
Background technique
Send fuel tap also to claim series flow control valve, be mainly used in the speed governing and the pressure regulation of hydraulic type architectural experiment machine, metal universal testing machine and other hydraulic type experimental machine.
Send fuel tap to be made up of valve body, valve pocket, spool and adjustable lever etc. usually, during use, rotary regulating lever can be regulated oil suction chamber F and enter the oil mass of regulating in the G of chamber, enters oil mass in the active chamber H thereby regulate from regulating chamber G.In the prior art, because forced sealings such as steel pad are often adopted in the sealing between valve pocket and valve body, in use; cause the valve pocket distortion through regular meeting; the geometric accuracy of valve pocket is reduced, cause the sensitivity of spool to decrease, have influence on the proper functioning of sending fuel tap.
Summary of the invention
The purpose of this utility model is to design a kind of experimental machine and send fuel tap, owing between valve pocket and valve body, be provided with valve seat, be provided with flexible seal ring between valve seat and valve body and between valve pocket and valve body, thereby improving the sealability of sending fuel tap effectively, improving the working efficiency of sending fuel tap.
The design proposal that provides according to the utility model, left end at valve body is installed adjustment seat, in adjustment seat, connect adjustable lever with screw-thread fit, valve pocket is arranged in valve body, the spool that can slide in valve pocket, having, right-hand member at valve body has connecting sleeve, spring is arranged in connecting sleeve, the left end of this spring contacts with the right-hand member of spool, between the left end of valve pocket and valve body, oil suction chamber is arranged, in valve body, there is oil inlet passage to be communicated with, is provided with between oil suction chamber in valve body and adjustment seat and regulates the chamber, on the valve body of regulating between chamber and oil suction chamber, form flap with oil suction chamber, porose on flap, the conical section of adjustable lever right-hand member can enter in this hole, and the right-hand member diameter of conical section is less than the aperture in this hole, the left end diameter of conical section is greater than the aperture in this hole, it is characterized in that: on the valve body of valve pocket left end, valve seat is installed, the O RunddichtringO is set, between valve seat and valve body on right side near the O RunddichtringO, nonmetal enhancing circle is set between valve pocket and valve body.
Back pressure chamber is arranged in connecting sleeve, in valve body, have spill pipe to be communicated with and regulate chamber and back pressure chamber, on valve body, set out hydraulic fluid port, the passage that is communicated with oil outlet and regulates the chamber is set in valve body.Between the right-hand member of adjustment seat and valve body seal ring is set, in the both sides of seal ring pad is set respectively, the middle part of adjustable lever is movably located in the hole in seal ring and the pad.Be positioned at the right-hand member of spool on a section of connecting sleeve outwards outstanding step is set.
The utility model has the advantages that: owing between valve pocket and valve body, be provided with valve seat, be provided with flexible seal ring between valve seat and valve body and between valve pocket and valve body, thereby improving the sealability of sending fuel tap effectively, improving the working efficiency of sending fuel tap.
Description of drawings
Fig. 1 is for sending the fuel tap structural drawing.
Fig. 2 is the enlarged view of C among Fig. 1.
Embodiment
As shown in the figure: the left end at valve body 5 is installed adjustment seat 3, in adjustment seat 3, connect adjustable lever 2 with screw-thread fit, valve pocket 9 is arranged in valve body 5, the spool 7 that can slide in valve pocket 9, having, right-hand member at valve body 5 has connecting sleeve 12, spring 24 is arranged in connecting sleeve 12, the left end of this spring 24 contacts with the right-hand member of spool 7 by step 11, between the left end of valve pocket 9 and valve body 5, oil suction chamber F is arranged, in valve body 5, there is oil inlet passage I to be communicated with oil suction chamber F, 3 of oil suction chamber F in valve body 5 and adjustment seats are provided with regulates chamber G, form flap 26 on the valve body of regulating between chamber G and oil suction chamber F 5, porose on flap 26, the conical section of adjustable lever 2 right-hand members can enter in this hole, and, the right-hand member diameter of conical section is less than the aperture in this hole, and the left end diameter of conical section is installed valve seat 19 greater than the aperture in this hole on the valve body 5 of valve pocket 9 left ends, at valve seat 19 and 5 of valve bodies O RunddichtringO 18 is set, on right side near O RunddichtringO 18,5 of valve pocket 9 and valve bodies are provided with nonmetal enhancing circle 6.Back pressure chamber D is arranged in connecting sleeve 12, in valve body 5, have spill pipe 8 to be communicated with and regulate chamber G and back pressure chamber D, on valve body 5, set out hydraulic fluid port H, the passage that is communicated with oil outlet H and regulates chamber G is set in valve body 5.Right-hand member and 5 of valve bodies in adjustment seat 3 are provided with seal ring 15, in the both sides of seal ring 15 pad 14,16 is set respectively, the middle part of adjustable lever 2 is movably located in the hole in seal ring 15 and the pad 14,16, to improve the sealability of 5 of adjustable lever 2 and valve bodies.Be positioned at the right-hand member of spool 7 on a section of connecting sleeve 12 outwards outstanding step 11 is set, form spring seat, so that the stroke of mounting spring 24 and control spool 7.
During work, oil is entered in the oil suction chamber F through oil inlet passage I by oil pump, the conical section of adjustable lever 2 right-hand members is positioned at the hole on the flap 26, and closely contact with the hole, hole on the flap 26 is blocked, oil in the oil suction chamber F can't be entered in the adjusting chamber G, 5 of valve seat 19 and valve bodies enclose 6 by O RunddichtringO 18 and enhancing and seal, therefore, spool 7 is closed in valve seat 19 and the valve pocket 9, in the time of in oil enters oil suction chamber F, makes and produces pressure in the oil suction chamber F, because spool 7 and valve pocket 9 are for being slidingly matched, the higher spool right-hand member of sensitivity has spring 24, when the oil pressure in the oil suction chamber F is higher than certain value, when promptly reaching the setting value of spring 24, spool 7 pressuring springs 24 form a certain amount of constant initial pressure.When the needs speed governing, rotary regulating lever 2, under the threaded function of 3 of adjustable lever 2 and adjustment seats, adjustable lever 2 is moved to the left, and at this moment the conical section on the adjustable lever 2 moves to left gradually, because the diameter of conical section diminishes from left to right gradually, in the process that adjustable lever 2 is moved to the left, hole on the flap 26 is opened gradually, and oil flows into from oil suction chamber F and regulates in the G of chamber, and forms pressure reduction between adjusting chamber G and oil suction chamber F.When the oil in the adjusting chamber G flows directly in the oil outlet H, oil by spill pipe 8 in the E chamber enters back pressure chamber D, spool 7 is produced the back-pressure effect, make spool 7 in back pressure chamber D and between adjusting chamber G, reach pressure balance, guarantee the pressure reduction between oil suction chamber F and adjusting chamber G, guarantee that oil flows in the adjusting chamber G from oil suction chamber F quantitatively, thereby guaranteed at the uniform velocity to send oil.When the need oil mass of oil outlet H increases or reduce, as long as rotary regulating lever 2, make the conical section of adjustable lever 2 be positioned at the different parts in the hole on the flap 26, just can realize.
Require the oil pressure balance owing to regulate chamber G, the action request sensitivity of spool 7, therefore, the gap that spool 7 and valve pocket are 9 is very little, oil only allows small overflow, does not allow the miniflow phenomenon between the end face of the left end of valve pocket 9 and valve body 5, need take the seal approach of strictness.In the past, forced sealings such as steel pad are all adopted in this sealing, in use, make valve pocket 9 produce distortion easily, reduce the geometric accuracy of valve pocket 9 and the sensitivity of spool 7, be the geometric accuracy of assurance valve pocket 9 and the sensitivity of spool 7, the utility model is provided with O RunddichtringO 18 and nonmetal enhancing circle 6 between the end face of the left end of valve pocket 7 and valve body 5, form from the sealing of pressure property, to reduce pressure, the sealability that the sensitivity of assurance spool 7 and valve pocket 9 and valve body are 5 valve pocket 9.
Among the figure 1 is the connecting head on the adjustable lever 2, and 4 is position-limited lever, and 10 is the end socket on the spill pipe 18, in the inner of end socket 18 adjustable lever 27 is arranged, in needs are regulated spill pipe 18 during the flow velocity of oil, can be by rotation end socket 10, drive adjustable lever 27 move left and right, i.e. the can regulate flow velocity.13 is the mounting hole on the connecting head 1, the 17,20,21, the 23rd, and seal ring, the 22, the 25th, bolt.
Claims (4)
1, experimental machine is sent fuel tap, left end at valve body (5) is installed adjustment seat (3), in adjustment seat (3), connect adjustable lever (2) with screw-thread fit, valve pocket (9) is arranged in valve body (5), the spool (7) that can slide in valve pocket (9), having, right-hand member at valve body (5) has connecting sleeve (12), spring (24) is arranged in connecting sleeve (12), the left end of this spring (24) contacts with the right-hand member of spool (7), between the left end of valve pocket (9) and valve body (5), oil suction chamber (F) is arranged, in valve body (5), there is oil inlet passage (I) to be communicated with oil suction chamber (F), be provided with between oil suction chamber (F) in valve body (5) and adjustment seat (3) and regulate chamber (G), go up formation flap (26) at the valve body of regulating between chamber (G) and oil suction chamber (F) (5), go up porose at flap (26), the conical section of adjustable lever (2) right-hand member can enter in this hole, and, the right-hand member diameter of conical section is less than the aperture in this hole, the left end diameter of conical section is greater than the aperture in this hole, it is characterized in that: go up at the valve body (5) of valve pocket (9) left end valve seat (19) is installed, between valve seat (19) and valve body (5), O RunddichtringO (18) is set, on right side near O RunddichtringO (18), between valve pocket (9) and valve body (5) nonmetal enhancing circle (6) is set.
2, experimental machine according to claim 1 is sent fuel tap, it is characterized in that: back pressure chamber (D) is arranged in connecting sleeve (12), in valve body (5), there is spill pipe (8) to be communicated with and regulates chamber (G) and back pressure chamber (D), on valve body (5), set out hydraulic fluid port (H), the passage that is communicated with oil outlet (H) and regulates chamber (G) is set in valve body (5).
3, experimental machine according to claim 1 is sent fuel tap, it is characterized in that: between the right-hand member of adjustment seat (3) and valve body (5), seal ring (15) is set, in the both sides of seal ring (15) pad (14), (16) are set respectively, the middle part of adjustable lever (2) is movably located in the hole in seal ring (15) and pad (14), (16).
4, experimental machine according to claim 1 is sent fuel tap, it is characterized in that: be positioned at the right-hand member of spool (7) on a section of connecting sleeve (12) outwards outstanding step (11) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520075453 CN2846833Y (en) | 2005-09-07 | 2005-09-07 | Oil feeding valve for test machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520075453 CN2846833Y (en) | 2005-09-07 | 2005-09-07 | Oil feeding valve for test machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2846833Y true CN2846833Y (en) | 2006-12-13 |
Family
ID=37512256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520075453 Expired - Fee Related CN2846833Y (en) | 2005-09-07 | 2005-09-07 | Oil feeding valve for test machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2846833Y (en) |
-
2005
- 2005-09-07 CN CN 200520075453 patent/CN2846833Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NONE WUXI SHENGRUI MACHINERY ELECTRONICS CO., LTD. Free format text: FORMER OWNER: REN HAORONG; PATENTEE Effective date: 20080425 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080425 Address after: Binhu District of Jiangsu province money Yao Lu Wuxi Longshan Cultural Industrial Park, room 7, zip code: 214063 Patentee after: Wuxi Shengrui Machinery Electronics Co., Ltd. Address before: Lane 88, Rong Xiang lane, Binhu District, Jiangsu City, Wuxi Province, China: 214063 Co-patentee before: Wuxi Huasheng Machinery Works Patentee before: Ren ho Rong |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061213 Termination date: 20130907 |