CN204922013U - Positive ratio pressure reducing valve of normal close formula electromagnetism - Google Patents
Positive ratio pressure reducing valve of normal close formula electromagnetism Download PDFInfo
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- CN204922013U CN204922013U CN201520557672.2U CN201520557672U CN204922013U CN 204922013 U CN204922013 U CN 204922013U CN 201520557672 U CN201520557672 U CN 201520557672U CN 204922013 U CN204922013 U CN 204922013U
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- reducing valve
- adjusting screw
- pressure relief
- spool
- spring
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Abstract
The utility model relates to a positive ratio pressure reducing valve of normal close formula electromagnetism belongs to hydraulic pressure engineering controlling element technical field. It is equipped with oil inlet, oil -out including decompression disk seat and reducing valve body on the decompression disk seat, and the valve barrel, case, damping hole and the reset spring that lie in the reducing valve body lower part install at the decompression disk seat, and the case tail end passes through reset spring and links to each other with the decompression disk seat, and the other end of case links to each other with the push rod, the periphery at the case is installed to the valve barrel to seal installation is on the decompression disk seat, being laminated with magnetic conduction shell inner wall by magnetic conduction shell parcel, electrical coil in the upper portion of reducing valve body, installs adjusting screw on electrical coil's the axis, and adjusting screw one end contacts with the one end of spring, and the spring other end contacts with the push rod, adjusting screw's the other end is equipped with lock nut. The utility model discloses according to the input signal of telecommunication consecutively, execute component pressure among the control system in proportion, can prevent the hydraulic shock, its structural design, processing performance, price etc. All are superior to ordinary relief pressure valve.
Description
Technical field
The utility model relates to a kind of Normally closed type electromagnetism direct proportaion reduction valve, belongs to oilhydraulic engineering control unit technical field.
Background technique
General reduction valve is all hand adjustment, often opens, and the setting pressure of executive component being carried out to startup formula controls.The pressure that this reduction valve has no idea to reach executive component is zero, i.e. off-load; Also the pressure of distance type continuous control executive component cannot be reached.
Summary of the invention
The purpose of this utility model is to solve that existing reduction valve exists to executive component off-load and remotely-controlled operation, cannot provide a kind of Normally closed type electromagnetism direct proportaion reduction valve controlling executive component pressure.
For achieving the above object, the utility model is by the following technical solutions:
A kind of Normally closed type electromagnetism direct proportaion reduction valve, its specialization is to comprise Pressure relief valve seat and reducing valve body, described Pressure relief valve seat 1 is provided with filler opening 2, oil outlet 3, be positioned at the valve pocket 4 of reducing valve body bottom, spool 5, damping hole 6 and Returnning spring 7 and be arranged on Pressure relief valve seat, the tail end of spool 5 is connected with Pressure relief valve seat 1 by Returnning spring 7, and the other end of spool 5 is connected with push rod 14; Valve pocket 4 is arranged on the periphery of spool 5, and sealing is arranged on Pressure relief valve seat 1; The top of reducing valve body is wrapped up by magnetic conductive shell 8, and hot-wire coil 9 and magnetic conductive shell inwall are fitted, and the medial axis of hot-wire coil is provided with adjusting screw rod 11, one end of adjusting screw rod contacts with one end of spring 13, and the other end of spring 13 contacts with push rod 14; The other end of adjusting screw rod is equipped with locking nut 10, by the relative position of locking nut secured adjusted screw rod 11 with front cover 12.
Described valve pocket 4 is arranged on Pressure relief valve seat 1 by sealing by the front cover 12 on reduction valve top.
Utility model works principle is as follows:
In an initial condition, hot-wire coil 9 is not energized, by regulating adjusting screw rod 11, spool 5 is made to be subject to the force balance of Returnning spring 7 and push rod 14, be in normally off, namely the filler opening 2 at pressure P 1 place is not communicated with the oil outlet 3 at secondary pressure P2 place, and secondary pressure P2 is zero, and corresponding executive component is by off-load; When hot-wire coil 9 galvanization, produce magnetic field, the effect that spool 5 is subject to the magnetic conduction power that Returnning spring 7, push rod 14 and hot-wire coil 9 produce moves down, filler opening 2 is communicated with oil outlet 3, a pressure P 1 flows into oil outlet 3 from filler opening 2 and becomes secondary pressure P2, P2 enters the internal cavities of spool 5 simultaneously by damping hole 6, act on spool 5, spool 5 is subject to the effect of 4 kinds of power, move to new equilibrium position, magnetic conduction power equals secondary pressure P2 substantially herein, and current in proportion increases, and P2 is increase in direct ratio also.
The utility model according to the electrical signal of input continuously, the pressure of some executive component in hydraulic control system pari passu, prevent hydraulic shock, its structural design, technology capability, use and maintenance and be all better than common conventional reduction valve in price.
Accompanying drawing explanation
Fig. 1: be the utility model structural representation.
Embodiment
Referring to accompanying drawing, provide embodiment of the present utility model, be used for being further described structure of the present utility model.
Embodiment 1
The Normally closed type electromagnetism direct proportaion reduction valve of the present embodiment, comprise Pressure relief valve seat and reducing valve body, Pressure relief valve seat 1 is provided with filler opening 2, oil outlet 3, be positioned at the valve pocket 4 of reducing valve body bottom, spool 5, damping hole 6 and Returnning spring 7 and be arranged on Pressure relief valve seat, the tail end of spool 5 is connected with Pressure relief valve seat 1 by Returnning spring 7, and the other end of spool 5 is connected with push rod 14; Valve pocket 4 is arranged on the periphery of spool 5, and valve pocket is arranged on Pressure relief valve seat 1 by the front cover 12 on reduction valve top by sealing; The top of reducing valve body is wrapped up by magnetic conductive shell 8, and hot-wire coil 9 and magnetic conductive shell inwall are fitted, and the medial axis of hot-wire coil is equipped with adjusting screw rod 11, one end of adjusting screw rod contacts with one end of spring 13, and the other end of spring 13 contacts with push rod 14; The other end of adjusting screw rod is equipped with locking nut 10, by the relative position of locking nut secured adjusted screw rod 11 with front cover 12.
Its working principle:
In an initial condition, hot-wire coil 9 is not energized, by regulating adjusting screw rod 11, spool 5 is made to be subject to the force balance of Returnning spring 7 and push rod 14, be in normally off, namely the filler opening 2 at pressure P 1 place is not communicated with the oil outlet 3 at secondary pressure P2 place, and secondary pressure P2 is zero, and corresponding executive component is by off-load; When hot-wire coil 9 galvanization, spool 5 moves down by the effect of the magnetic conduction power that Returnning spring 7, push rod 14 and hot-wire coil 9 produce, filler opening 2 is communicated with oil outlet 3, a pressure P 1 flows into oil outlet 3 from filler opening 2 and becomes secondary pressure P2, P2 enters the internal cavities of spool 5 simultaneously by damping hole 6, act on spool 5, spool 5 is subject to the effect of 4 kinds of power, move to new equilibrium position, magnetic conduction power equals secondary pressure P2 substantially herein, current in proportion increases, and P2 is increase in direct ratio also.
Protection domain of the present utility model is not limited to above given embodiment, and every all technological schemes achieved by thinking of the present utility model, all belong to protection domain of the present utility model.
Claims (2)
1. a Normally closed type electromagnetism direct proportaion reduction valve, it is characterized in that comprising Pressure relief valve seat and reducing valve body, described Pressure relief valve seat (1) is provided with filler opening (2), oil outlet (3), be positioned at the valve pocket (4) of reducing valve body bottom, spool (5), damping hole (6) and Returnning spring (7) and be arranged on Pressure relief valve seat, the tail end of spool (5) is connected with Pressure relief valve seat (1) by Returnning spring (7), and the other end of spool (5) is connected with push rod (14); Valve pocket (4) is arranged on the periphery of spool (5), and sealing is arranged on Pressure relief valve seat (1); The top of reducing valve body is wrapped up by magnetic conductive shell (8), hot-wire coil (9) and magnetic conductive shell inwall are fitted, adjusting screw rod (11) medial axis of hot-wire coil is equipped with, one end of adjusting screw rod contacts with one end of spring (13), and the other end of spring (13) contacts with push rod (14); The other end of adjusting screw rod is equipped with locking nut (10), by the relative position of locking nut secured adjusted screw rod 11 with front cover 12.
2., according to a kind of Normally closed type electromagnetism direct proportaion reduction valve according to claim 1, it is characterized in that described valve pocket (4) is arranged on Pressure relief valve seat (1) by sealing by the front cover (12) on reduction valve top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520557672.2U CN204922013U (en) | 2015-07-29 | 2015-07-29 | Positive ratio pressure reducing valve of normal close formula electromagnetism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520557672.2U CN204922013U (en) | 2015-07-29 | 2015-07-29 | Positive ratio pressure reducing valve of normal close formula electromagnetism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204922013U true CN204922013U (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520557672.2U Active CN204922013U (en) | 2015-07-29 | 2015-07-29 | Positive ratio pressure reducing valve of normal close formula electromagnetism |
Country Status (1)
| Country | Link |
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| CN (1) | CN204922013U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678423A (en) * | 2017-03-04 | 2017-05-17 | 沈阳航天新光集团有限公司 | High-pressure electromagnetic starting device |
| CN108386563A (en) * | 2018-05-11 | 2018-08-10 | 哈尔滨理工大学 | Automobile ABS high-speed switch electromagnetic valve |
-
2015
- 2015-07-29 CN CN201520557672.2U patent/CN204922013U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678423A (en) * | 2017-03-04 | 2017-05-17 | 沈阳航天新光集团有限公司 | High-pressure electromagnetic starting device |
| CN108386563A (en) * | 2018-05-11 | 2018-08-10 | 哈尔滨理工大学 | Automobile ABS high-speed switch electromagnetic valve |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |