CN2324355Y - Plate type electromagnetic change-over valve - Google Patents

Plate type electromagnetic change-over valve Download PDF

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Publication number
CN2324355Y
CN2324355Y CN 98236703 CN98236703U CN2324355Y CN 2324355 Y CN2324355 Y CN 2324355Y CN 98236703 CN98236703 CN 98236703 CN 98236703 U CN98236703 U CN 98236703U CN 2324355 Y CN2324355 Y CN 2324355Y
Authority
CN
China
Prior art keywords
valve
oil
plate
sliding
valve core
Prior art date
Application number
CN 98236703
Other languages
Chinese (zh)
Inventor
陆伯武
Original Assignee
陆伯武
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 陆伯武 filed Critical 陆伯武
Priority to CN 98236703 priority Critical patent/CN2324355Y/en
Application granted granted Critical
Publication of CN2324355Y publication Critical patent/CN2324355Y/en

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Abstract

The utility model relates to a plate type electromagnetic change-over valve, which is characterized in that a valve core is a plate-shaped component. A sliding surface of the valve core is provided with oil passages, the plate-shaped valve core is assembled in a plate-shaped sliding cavity on a valve body, a sliding surface in the sliding cavity is provided with an operating oil hole, an oil inlet, and oil return hole, and the oil holes are corresponding to the oil passages. The utility model has the advantages of small gap between the valve core and the valve body, stable slide, good lubrication performance, no leakage, no hydraulic clamping, and long service life. The utility model has various specifications, such as two-position two-way valves, two-position three-way valves, two-position four-way valves, three-position four-way valves, three-position five-way valves, etc.

Description

Board-like solenoid directional control valve

The utility model relates to hydraulic control component, specifically a kind of board-like solenoid directional control valve.

Solenoid directional control valve is the communication that is used for realizing oil stream in Hydraulic Power Transmission System, cuts off and direction transformation, handles the action of various actuators.Existing solenoid directional control valve mainly is to be made of valve body, spool, bullet school, push rod, electromagnet.Spool is cylindrical, the valve pocket on the valve body hole be circular symmetry be arranged on spool land around, spool is subjected to the relative valve pocket of solenoid actuated to make axially reciprocating during work.The deficiency of this structure is:

1, when work spool and valve body hole between the hydraulic lock phenomenon is arranged, influence the commutation of spool and reset, working life is poor.

2, because the oil sealing length of spool land and valve body hole is short, and for alleviating the chucking phenomenon, corresponding glade plane space is arranged between spool and the valve body hole, thus when work hyperbaric chamber to low-pressure cavity inevitable internal leakage is arranged, influence the proper functioning and the speed of actuator.

The purpose of this utility model provides the board-like solenoid directional control valve of a kind of reliable performance, long service life.

To achieve these goals, technical measures of the present utility model are: improve the structure of spool and valve body hole, improve service behaviour and working life.Board-like solenoid directional control valve, it comprises left and right sides electromagnet, left and right sides spring, left and right sides push rod, valve body, it is characterized in that spool is a panel-like member, is shaped on oil canal on the sliding surface of spool; The plate shape that the plate valve core is assemblied on the valve body is slided in the chamber, and the sliding surface in the sliding chamber is provided with work oilhole, oil inlet hole, spill port, and oilhole is corresponding with oil canal.

Owing to adopt abovementioned technology, the utility model has the advantages that; Glade plane space is little between plate valve core and the valve body, slip is steady, continuity is good, part such as spool, push rod all moves in oil sump, so lubricity is good, do not have and leak, the hydraulic lock phenomenon can not appear, action accurately, response is fast, and long service life can be made multiple board-like solenoid directional control valves such as bi-bit bi-pass, two-position three way, two-position four-way, 3-position 4-way, three-position five-way.

Accompanying drawing is to this practical being described further in conjunction with the embodiments.

Fig. 1 is the structural representation of the board-like solenoid directional control valve of a kind of 3-position 4-way among the utility model embodiment.

Fig. 2 is the structural representation of the board-like solenoid directional control valve of a kind of two-position four-way among the utility model embodiment.

By Fig. 1 finding, be shaped on oil canal 6 on the sliding surface of plate valve core 5, the plate shape that plate valve core 5 is assemblied on the valve body 4 is slided in the chamber 7, and the sliding surface in the sliding chamber is provided with work oilhole A, B, oil inlet hole P, spill port T, and oilhole is corresponding with oil canal 6.Left push rod 3 and right push rod 8 are docked in the left and right sides of spool 5, and the afterbody of left and right sides push rod 3,8 respectively connects left spring 2 and right spring 9.Valve body 4 both sides connect left electromagnet 1 and right electromagnet 10, and each joins the moving part in the electromagnet with push rod 3,8.Station shown in Fig. 1 is that right electromagnet 10 energising backs act on plate valve core 5 by right push rod 8, overcome the anti-power of work of left spring 2 and the surface friction drag of spool 5 and valve pocket 7, plate valve core 5 is carried out working position behind the segment distance left, oil canal on the plate valve core 56 is communicated with oil inlet hole P and work oilhole A at this moment, and work oilhole B and spill port T are connected outside plate valve core 5 oil sealing surfaces; After right electromagnet 10 outages, left spring 2 compressed reaction forces discharge, and by left push rod 3 plate valve core 5 are carried out a segment distance rear enclosed work oilhole A, B to the right, make oil inlet hole P and work oilhole A, B, and spill port T is in closed state mutually; Left push rod 3 acts on plate valve core 5 after left electromagnet 1 energising, overcome the reaction force of right spring 9 and the surface friction drag of spool 5 and valve pocket 7, plate valve core 5 is carried out to the right opening work oilhole A, the B that is closed behind the segment distance, oil canal 6 is communicated with work oilhole B and oil inlet hole P, and work oilhole A and spill port T are connected outside plate valve core 5 oil sealing surfaces.When left electromagnet 1 cuts off the power supply, the sliding left sealing work oilhole A of plate valve core 5, B, oil inlet hole P and work oilhole A, B, spill port T is in mutual disconnected closed state.The valve pocket structure of the board-like solenoid directional control valve of above-mentioned 3-position 4-way shown in Figure 1 also can be made the board-like solenoid directional control valve of two-position four-way, as shown in Figure 2, the sliding chamber 7 of its valve body 4, plate valve core 5, plate shape, oilhole A, P, technical measures such as B, T are all identical with Fig. 1, different is that valve body 4 right sides connect cover plate 11, and left push rod 3 afterbodys are not established left spring 2.Shown in Fig. 2 left electromagnet 1 when not switching on, the position after the reaction force of right spring 9 makes plate valve core 5 left sides sliding by right push rod 8, oil inlet hole P and work oilhole A, work oilhole B are communicated with respectively with spill port T; Make plate valve core 5 right sliding by left push rod 3 when left side electricity ferromagnetic 1 is switched on, make oil inlet hole P and work oilhole B, the oilhole A that works is communicated with respectively with spill port T.Oilhole in Fig. 2 valve pocket structure is arranged to P, B two holes or A, P, T three holes, promptly is the bi-bit bi-pass among the utility model embodiment or the board-like solenoid directional control valve of two-position three way.

Claims (1)

1, a kind of board-like solenoid directional control valve, it comprises left and right sides electromagnet, left and right sides spring, left and right sides push rod, valve body, it is characterized in that spool is a panel-like member, is shaped on oil canal on the sliding surface of spool; The plate shape that the plate valve core is assemblied on the valve body is slided in the chamber, and the sliding surface in the sliding chamber is provided with work oilhole, oil inlet hole, spill port, and oilhole is corresponding with oil canal.
CN 98236703 1998-02-24 1998-02-24 Plate type electromagnetic change-over valve CN2324355Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 98236703 CN2324355Y (en) 1998-02-24 1998-02-24 Plate type electromagnetic change-over valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 98236703 CN2324355Y (en) 1998-02-24 1998-02-24 Plate type electromagnetic change-over valve

Publications (1)

Publication Number Publication Date
CN2324355Y true CN2324355Y (en) 1999-06-16

Family

ID=33984685

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 98236703 CN2324355Y (en) 1998-02-24 1998-02-24 Plate type electromagnetic change-over valve

Country Status (1)

Country Link
CN (1) CN2324355Y (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012013160A1 (en) * 2010-07-30 2012-02-02 湖南三一智能控制设备有限公司 Hydraulic directional control valve, set and control method thereof
CN103574266A (en) * 2013-11-11 2014-02-12 山东理工大学 Double-electromagnet two-position-two-way high-pressure dry oil switching valve
CN104848027A (en) * 2015-03-16 2015-08-19 山东理工大学 High-pressure dry oil lubrication magnetic valve
CN105065356A (en) * 2015-08-07 2015-11-18 中山市文天长液压机械有限公司 Multi-control electromagnetic reversing valve
CN105422911A (en) * 2015-12-13 2016-03-23 北京工业大学 Double-cone type two-position four-way electromagnetic reversing valve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012013160A1 (en) * 2010-07-30 2012-02-02 湖南三一智能控制设备有限公司 Hydraulic directional control valve, set and control method thereof
CN103574266A (en) * 2013-11-11 2014-02-12 山东理工大学 Double-electromagnet two-position-two-way high-pressure dry oil switching valve
CN104848027A (en) * 2015-03-16 2015-08-19 山东理工大学 High-pressure dry oil lubrication magnetic valve
CN105065356A (en) * 2015-08-07 2015-11-18 中山市文天长液压机械有限公司 Multi-control electromagnetic reversing valve
CN105422911A (en) * 2015-12-13 2016-03-23 北京工业大学 Double-cone type two-position four-way electromagnetic reversing valve

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C19 Lapse of patent right due to non-payment of the annual fee
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