CN204003734U - A kind of large flow ultrahigh pressure direct-acting type proportional overflow valve - Google Patents
A kind of large flow ultrahigh pressure direct-acting type proportional overflow valve Download PDFInfo
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- CN204003734U CN204003734U CN201420470630.0U CN201420470630U CN204003734U CN 204003734 U CN204003734 U CN 204003734U CN 201420470630 U CN201420470630 U CN 201420470630U CN 204003734 U CN204003734 U CN 204003734U
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Abstract
The utility model discloses a kind of large flow ultrahigh pressure direct-acting type proportional overflow valve, one end of its valve body is fixedly connected with proportion electro-magnet, its the other end is provided with end cap, the inside of valve body is provided with flow-off and spool, one end of guide's plunger is stretched in spool, and and spool between form oil pocket, the damping hole that oil pocket is provided with spool is communicated with, the other end of guide's plunger withstands on base, base is fixedly connected with end cap, one end of spool is connected with the push rod of proportion electro-magnet by stop collar, between the other end of spool and base, be provided with Returnning spring, the bottom of valve body has pressure hydraulic fluid port and return opening, the side of valve body is provided with outer drain tap.The utility model has the advantages that: this direct-acting type proportional overflow valve compact structure is reasonable, easy to assembly, amplifies control principle by pressure flow, spillway discharge is large, and working pressure can reach the ultrahigh pressure of 50Mpa, and working stability, highly sensitive, stagnant ring is little, and dynamic quality and reliability are high.
Description
Technical field
The utility model relates to direct-acting type proportional overflow valve, particularly a kind of large flow ultrahigh pressure direct-acting type proportional overflow valve.
Background technique
Common direct-acting type proportional overflow valve adoption rate solenoid actuated, the adjusting pressure of its valve is subject to the impact of overflow variable quantity larger, also be subject to the restriction of proportion electro-magnet thrust size, make valve pressure-regulating overflow amount less, pressure maximum regulation range is low, less stable, this just makes the Performance And Reliability of direct-acting type proportional overflow valve not reach the application requirements of large flow ultrahigh pressure.
Model utility content
Technical problem to be solved in the utility model is to provide one
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of large flow ultrahigh pressure direct-acting type proportional overflow valve, comprise valve body, proportion electro-magnet, guide's plunger and base, one end of valve body is fixedly connected with proportion electro-magnet, its the other end is provided with end cap, the inside of valve body is provided with flow-off and spool, one end of guide's plunger is stretched in spool, and and spool between form oil pocket, the damping hole that oil pocket is provided with spool is communicated with, the other end of guide's plunger withstands on base, base is fixedly connected with end cap, one end of spool is connected with the push rod of proportion electro-magnet by stop collar, between the other end of spool and base, be provided with Returnning spring, the bottom of valve body has pressure hydraulic fluid port and return opening, pressure hydraulic fluid port is communicated with oil pocket, the side of valve body is provided with outer drain tap.
The utility model has the advantages that: this direct-acting type proportional overflow valve compact structure is reasonable, easy to assembly, amplifies control principle by pressure flow, spillway discharge is large, and working pressure can reach the ultrahigh pressure of 50Mpa, and working stability, highly sensitive, stagnant ring is little, and dynamic quality and reliability are high.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is plan structure schematic diagram of the present utility model.
Wherein, 1, proportion electro-magnet, 2, valve body, 3 spools, 31, oil pocket, 4, guide's plunger, 5, Returnning spring, 6, base, 7, end cap, 8, damping hole, 9, flow-off, 10, stop collar, 11, push rod, P, pressure hydraulic fluid port, T, return opening, L, outer drain tap.
Embodiment:
As shown in Figure 1 to Figure 2, a kind of large flow ultrahigh pressure direct-acting type proportional overflow valve, comprise valve body 2, proportion electro-magnet 1, guide's plunger 4 and base 6, one end of valve body 2 is fixedly connected with proportion electro-magnet 1, its the other end is provided with end cap 7, the inside of valve body 2 is provided with flow-off 9 and spool 3, one end of guide's plunger 4 is stretched in spool 3, and and spool 3 between form oil pocket 31, the damping hole 8 that oil pocket 31 is provided with spool 3 is communicated with, the other end of guide's plunger 4 withstands on base 6, base 6 is fixedly connected with end cap 7, one end of spool 3 is connected with the push rod 11 of proportion electro-magnet 1 by stop collar 10, between the other end of spool 3 and base 6, be provided with Returnning spring 5, the bottom of valve body 2 has pressure hydraulic fluid port P and oil return inlet T, pressure hydraulic fluid port P is communicated with oil pocket 31, the side of valve body 2 is provided with outer drain tap L.
The working principle of above-mentioned large flow ultrahigh pressure direct-acting type proportional overflow valve is: when proportion electro-magnet 1 is switched on, its push rod 11 is exported electromagnetic push, promote spool 3 compression reseting springs 5, pressure oil acts on base 6 guide's plunger 4 by damping hole 8, electromagnetic push is equilibrated on spool 3, and spool 3 seals flow-off 9; In the time that the oil pressure of oil pocket 31 internal pressure oil generations is greater than the thrust of proportion electro-magnet 1, spool 3 is moved to the left, and there is opening between flow-off 9, produce spillway discharge, due to opening change very little, in the situation that ignoring hydraulic power and affecting, in the time of homeostasis, the thrust that proportion electro-magnet 1 is exported is directly proportional to the oil pressure of oil pocket 31 internal pressure oil, thereby is also directly proportional to the signal code of input proportion electro-magnet 1; Along with the increase of spillway discharge flow, spool 3 amount of movements increase, and it is powerful that between circular flow-off 9 and spool 3, relative position moves the scarce area change of formed circle, flow ultrahigh pressure level pressure high-precision requirement greatly.In said process, the Returnning spring 5 between spool 3 and base 6 has supporting effect to spool 3, the cracking pressure of valve can reduce proportion electro-magnet 1 small-signal current time; Damping hole 8 has dynamic antivibration effect, is conducive to improve the stability of valve overall work; Stop collar 10 can limit the range of spool 3, is conducive to maximum spillway discharge off-load stability.
Claims (1)
1. a large flow ultrahigh pressure direct-acting type proportional overflow valve, it is characterized in that: comprise valve body, proportion electro-magnet, guide's plunger and base, one end of described valve body is fixedly connected with proportion electro-magnet, its the other end is provided with end cap, the inside of described valve body is provided with flow-off and spool, one end of described guide's plunger is stretched in spool, and and spool between form oil pocket, the damping hole that described oil pocket is provided with spool is communicated with, the other end of described guide's plunger withstands on base, described base is fixedly connected with end cap, one end of described spool is connected with the push rod of proportion electro-magnet by stop collar, between the other end of described spool and base, be provided with Returnning spring, the bottom of described valve body has pressure hydraulic fluid port and return opening, described pressure hydraulic fluid port is communicated with oil pocket, the side of described valve body is provided with outer drain tap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420470630.0U CN204003734U (en) | 2014-08-20 | 2014-08-20 | A kind of large flow ultrahigh pressure direct-acting type proportional overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420470630.0U CN204003734U (en) | 2014-08-20 | 2014-08-20 | A kind of large flow ultrahigh pressure direct-acting type proportional overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003734U true CN204003734U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420470630.0U Active CN204003734U (en) | 2014-08-20 | 2014-08-20 | A kind of large flow ultrahigh pressure direct-acting type proportional overflow valve |
Country Status (1)
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| CN (1) | CN204003734U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214156A (en) * | 2014-08-20 | 2014-12-17 | 海门市油威力液压工业有限责任公司 | High-flow ultrahigh-pressure directly operated type proportional overflow valve |
-
2014
- 2014-08-20 CN CN201420470630.0U patent/CN204003734U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214156A (en) * | 2014-08-20 | 2014-12-17 | 海门市油威力液压工业有限责任公司 | High-flow ultrahigh-pressure directly operated type proportional overflow valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 226100 Jiangsu city of Nantong Province Haimen Haimen Town Road No. 749 Patentee after: Oil power hydraulic Polytron Technologies Inc Address before: 226100 Jiangsu city of Nantong Province Haimen Haimen Town Road No. 749 Patentee before: Haimen Youweili Hydraulic Co., Ltd. |