CN107605840A - Automatically the adjustable overflow reversal valve calibrated - Google Patents

Automatically the adjustable overflow reversal valve calibrated Download PDF

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Publication number
CN107605840A
CN107605840A CN201711186001.XA CN201711186001A CN107605840A CN 107605840 A CN107605840 A CN 107605840A CN 201711186001 A CN201711186001 A CN 201711186001A CN 107605840 A CN107605840 A CN 107605840A
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China
Prior art keywords
spring
valve
overflow
adjusting
adjustable
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Application number
CN201711186001.XA
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Chinese (zh)
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CN107605840B (en
Inventor
王雅莲
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Shaoxing Shangyu Hengfeng Machinery Co., Ltd.
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王雅莲
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Abstract

The invention discloses the adjustable overflow reversal valve calibrated automatically, including reversing valve body and overflow valve body, overflow valve body includes housing, plug is provided with runner in housing, valve element one end of reversing valve body is provided with the first magnet, electromagnet is provided with reversing valve body, first spring and spring base, there is taper adjustment portion and opening on housing, open side is connected with adjusting set, if dry slide and overflow ducts are radially arranged in adjusting set, adjustable plate is provided with slideway, the second spring for strutting some adjustable plates is provided between adjustable plate and slideway end face, regulation front edge of board is provided with the inclined-plane coordinated with taper adjustment portion, adjustable plate is provided with spacing raised line close to flow passage side, elastic ring is provided with spring base, electric pushrod and oil return interface are provided with adjusting set, electric pushrod is connected with electromagnet.This kind of overflow reversal valve can adjust oil pressure relief, the elastic force of the spring of adjust automatically first in commutation, it is easy to accomplish the Automated condtrol of valve.

Description

Automatically the adjustable overflow reversal valve calibrated
Technical field
The invention belongs to valve technology field, the adjustable overflow reversal valve specifically calibrated automatically.
Background technology
Reversal valve is the directional control valve for having two or more liquid forms and two or more hydraulic fluid port.It is to realize hydraulic pressure oil stream Communication, cut-out and commutation, and discharge degree and sequentially-operating control valve.
Overflow reversal valve is the combination valve that overflow valve is provided with the oil inlet of reversal valve, and the oil pressure at oil inlet exceedes During specified value, the pressure of hydraulic oil overcomes spring force in overflow valve, and oil spilling road of the partial high pressure oil through overflow valve returns Fuel tank.When oil pressure is in safe range, plug is pressed on valve position, overflow valve by spring in the presence of itself pretightning force Close.
The elastic force of spring can be gradually reduced in overflow valve during long-term use, if the spring force mistake of overflow valve It is small, or spring shortens failure, hydraulic oil can force plug to leave valve bit stream to enter oil spilling road under less than system authorized pressure, Interior leakage is caused, makes thrashing.Spring must be changed during repairing, then adjusts spring pressure to defined pressure using adjusting screw Power.Overflow reversal valve service life using this kind of structure is short, and it is troublesome in poeration to change spring.
Existing overflow valve needs to change the oil pressure relief of overflow valve by changing the decrement of compression spring, and uses This kind of mode adjust after overflow valve spring still can shorten failure after long-term use, now again need re-start tune Section, service life is short, adjusts trouble.
Existing overflow reversal valve is during commutation simultaneously, in reversal valve handoff procedure, due to being used to for hydraulic oil Property can cause the pressure moment of overflow valve to raise, so as to there is the hydraulic oil of part to be returned directly to fuel tank from overflow valve so that hydraulic pressure The energy dissipation of pump.
The content of the invention
The present invention is in view of the shortcomings of the prior art, provide the adjustable overflow reversal valve calibrated automatically, this kind of overflow reversal valve It is capable of the oil pressure relief of regulation relief valve, and setting pressure is stilled remain in after spring shortens failure, so as to extends The service life of overflow reversal valve, and can prevent that hydraulic oil leaks oil return box from overflow valve in reversal valve handoff procedure, And it is easily achieved the Automated condtrol of valve.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals:That calibrates automatically is adjustable Overflow reversal valve, including reversing valve body and overflow valve body, the import of the reversing valve body and the overflow valve body Inlet communication, the overflow valve body includes housing, and runner is provided with the housing, be provided with the runner plug and Spring base, is provided with the first spring between the spring base and the plug, valve element one end of the reversing valve body is provided with Magnet, the electromagnet coordinated with the magnet is provided with the reversing valve body, have on the housing taper adjustment portion with And the threaded opening of tool, the open side are threaded with adjusting set, if be radially arranged in the adjusting set dry slide and Middle part is provided with overflow ducts, and adjustable plate is provided with the slideway, and being provided between the adjustable plate and the slideway end face will be some The second spring that the adjustable plate struts, it is described regulation front edge of board be provided with the taper adjustment portion coordinate inclined-plane, every piece The adjustable plate is provided with some spacing raised lines close to the flow passage side, and elastic ring, the regulation are provided with the spring base Putting to be provided with promotes the spring base to lead to the electric pushrod for compressing the first spring direction movement and with the overflow The oil return interface of road connection, the electromagnet are connected with the electric pushrod, the spring base and the adjacent two spacing raised lines The elastic force difference of first spring described in when leaning be less than first spring to the upper limit of the elastic force prescribed limit of the plug with The difference of lower limit.This kind of overflow reversal valve can be slided by adjusting the position adjustable plate of adjusting set in slideway, so as to Regulation elasticity ring stretches into the distance of spacing raised line, and elastic force needed for spacing raised line is slipped over so as to adjust spring base, until regulation to The elastic force that the spring base slips over the spacing raised line is equal to first spring to the upper of the elastic force prescribed limit of the plug Limit completes regulation;When needing commutation, by controlling the sense of current of electromagnet to control valve element to move, now electric pushrod promotes The direction of spring base towards the first spring of compression is moved, and elastic ring bending slips over spacing raised line, and the first spring is compressed, electronic During pusher retracted, spring base is pushed back on one of them spacing raised line automatically by the elastic force of the first spring, due to the spring base The elastic force difference of first spring described in when being leaned with the adjacent two spacing raised lines is less than elastic force of first spring to plug The upper limit of prescribed limit and the difference of lower limit, therefore, now the first spring to the elastic force of plug all the time in prescribed limit.Therefore The first spring shorten failure after by compress also can the first spring to the pressure of plug in prescribed limit so that The service life of overflow valve is elongated, and easy to control, the elastic force of the spring of adjust automatically first in each commutation, it is not necessary to tear open Valve, and it is easily achieved the Automated condtrol of valve.
In above-mentioned technical proposal, it is preferred that be provided with sealing ring between the opening and the adjusting set.Using the structure Sealing between increase opening and the adjusting set, prevents hydraulic fluid leak.
The present invention compared with prior art, has the advantages that:This kind of overflow reversal valve can be by adjusting The position of set causes adjustable plate to be slided in slideway, so as to which regulation elasticity ring stretches into the distance of spacing raised line, so as to adjust spring Seat slips over elastic force needed for spacing raised line, until the elastic force that regulation to the spring base slips over the spacing raised line is equal to described the One spring completes regulation to the upper limit of the elastic force prescribed limit of the plug;When needing commutation, by the electricity for controlling electromagnet Flow direction control valve core is moved, and now the direction of electric pushrod push the spring seat towards the first spring of compression is moved, and elastic ring is curved The excessively spacing raised line of flexural slip, the first spring are compressed, and when electric pushrod is retracted, spring base is pushed back automatically by the elastic force of the first spring To one of them spacing raised line, the bullet of the first spring described in when being leaned due to the spring base with the adjacent two spacing raised lines Power difference is less than first spring to the upper limit of elastic force prescribed limit and the difference of lower limit of plug, therefore, now the first bullet Spring is to the elastic force of plug all the time in prescribed limit.Therefore also can the first bullet by compression after the first spring shortens failure Spring in prescribed limit, so that the service life of overflow valve is elongated, and easy to control, is changing the pressure of plug every time To when the spring of adjust automatically first elastic force, it is not necessary to tear valve open, and be easily achieved the Automated condtrol of valve.
Brief description of the drawings
Fig. 1 is the cross section structure diagram of the embodiment of the present invention.
Fig. 2 is the structural representation of adjusting set in the present invention.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description:Referring to Fig. 1 to Fig. 2, automatically The adjustable overflow reversal valve of calibration, including reversing valve body 100 and overflow valve body 200, the reversing valve body 100 Import and the inlet communication of the overflow valve body 200, the overflow valve body 200 include housing 1, set in the housing 1 There is runner 2, be provided with plug 3 and spring base 4 in the runner 2, first is provided between the spring base 4 and the plug 3 Spring 5, one end of valve element 101 of the reversing valve body 100 are provided with magnet 102, be provided with the reversing valve body 100 with The electromagnet 103 that the magnet 102 coordinates, there is taper adjustment portion 11 and the threaded opening 12 of tool, institute on the housing 1 State 12 sides of opening and be threaded with adjusting set 6, if being radially arranged dry slide 61 in the adjusting set 6 and middle part leads to provided with overflow Road 66, the slideway 61 is interior to be provided with adjustable plate 62, and being provided between adjustable plate 62 and the slideway 61 end face will be some described The second spring 63 that adjustable plate 62 struts, the front end of adjustable plate 62 are provided with the inclined-plane coordinated with the taper adjustment portion 11 64, every piece of adjustable plate 62 is provided with some spacing raised lines 65 close to the side of runner 2, and bullet is provided with the spring base 4 Property ring 41, be provided with the adjusting set 6 and promote the spring base 4 to electronic the pushing away for compressing the direction of the first spring 5 movement Bar 7 and the oil return interface 9 being connected with the overflow ducts 66, the electromagnet 103 is connected with the electric pushrod 7, described It is right that the elastic force difference of first spring 5 described in when spring base 4 leans with the adjacent two spacing raised lines 65 is less than first spring 5 The upper limit of elastic force prescribed limit and the difference of lower limit of the plug 3.This kind of overflow reversal valve can be by adjusting adjusting set Position causes adjustable plate to be slided in slideway, so as to which regulation elasticity ring stretches into the distance of spacing raised line, is slided so as to adjust spring base The elastic force needed for spacing raised line is crossed, until the elastic force that regulation slips over the spacing raised line to the spring base is equal to first bullet Spring completes regulation to the upper limit of the elastic force prescribed limit of the plug;When needing commutation, by the electric current side for controlling electromagnet To the direction movement of control valve element movement, now the first spring of electric pushrod push the spring seat direction compression, elastic ring bending is slided Spacing raised line is crossed, the first spring is compressed, and when electric pushrod is retracted, spring base is pushed back into it automatically by the elastic force of the first spring In on a spacing raised line, due to the elastic force difference of the first spring described in when the spring base and the adjacent two spacing raised lines lean Value is less than first spring to the upper limit of elastic force prescribed limit and the difference of lower limit of plug, therefore, now the first spring pair The elastic force of plug is all the time in prescribed limit.Therefore also can the first spring pair by compression after the first spring shortens failure The pressure of plug is in prescribed limit, so that the service life of overflow valve is elongated, and it is easy to control, in each commutation The elastic force of the spring of adjust automatically first, it is not necessary to tear valve open, and be easily achieved the Automated condtrol of valve.The first described spring pair The elastic force prescribed limit of plug refers to:The first spring is to plug elastic force set in advance during normal work.
Sealing ring 8 is provided between the opening 12 and the adjusting set 6.Using structure increase opening and the regulation Sealing between set, prevents hydraulic fluid leak.

Claims (2)

1. the adjustable overflow reversal valve calibrated automatically, including reversing valve body(100)And overflow valve body(200), it is described Reversing valve body(100)Import and the overflow valve body(200)Inlet communication, the overflow valve body(200)Including Housing(1), the housing(1)Inside it is provided with runner(2), the runner(2)It is interior to be provided with plug(3)And spring base(4), it is described Spring base(4)With the plug(3)Between be provided with the first spring(5), it is characterised in that:The reversing valve body(100)'s Valve element(101)One end is provided with magnet(102), the reversing valve body(100)On be provided with and the magnet(102)Coordinate Electromagnet(103), the housing(1)It is upper that there is taper adjustment portion(11)And the threaded opening of tool(12), the opening (12)Side is threaded with adjusting set(6), the adjusting set(6)If dry slide has been radially arranged on(61)And middle part is provided with overflow Passage(66), the slideway(61)It is interior to be provided with adjustable plate(62), the adjustable plate(62)With the slideway(61)Set between end face Have some adjustable plates(62)The second spring strutted(63), the adjustable plate(62)Front end is provided with adjusts with the taper Section portion(11)The inclined-plane of cooperation(64), every piece of adjustable plate(62)Close to the runner(2)Side is provided with some spacing raised lines (65), the spring base(4)On be provided with elastic ring(41), the adjusting set(6)On be provided with and promote the spring base(4)To Compress first spring(5)The electric pushrod of direction movement(7)And with the overflow ducts(66)The oil return interface of connection (9), the electromagnet(103)With the electric pushrod(7)Series connection, the spring base(4)With the adjacent two spacing raised lines (65)First spring described in when leaning(5)Elastic force difference be less than first spring(5)To the plug(3)Elastic force regulation The upper limit of scope and the difference of lower limit.
2. the adjustable overflow reversal valve as claimed in claim 1 calibrated automatically, it is characterised in that:The opening(12)With institute State adjusting set(6)Between be provided with sealing ring(8).
CN201711186001.XA 2017-11-23 2017-11-23 Automatically the adjustable overflow reversal valve calibrated Active CN107605840B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711186001.XA CN107605840B (en) 2017-11-23 2017-11-23 Automatically the adjustable overflow reversal valve calibrated

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Application Number Priority Date Filing Date Title
CN201711186001.XA CN107605840B (en) 2017-11-23 2017-11-23 Automatically the adjustable overflow reversal valve calibrated

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CN107605840A true CN107605840A (en) 2018-01-19
CN107605840B CN107605840B (en) 2018-09-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112059714A (en) * 2020-09-15 2020-12-11 陈萍 Mechanical cutting fluid flow control device for machine tool manufacturing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5447174A (en) * 1993-08-02 1995-09-05 Hydrolux S.A.R.L. Pilot stage for pressure control valves
CN202746316U (en) * 2012-09-11 2013-02-20 淮安市胜杰液压机械有限公司 Integrated manual overflow reversing valve
CN103511678A (en) * 2013-09-26 2014-01-15 番禺珠江钢管(珠海)有限公司 Direct-acting overflow valve and method for establishing and releasing pressure thereof
CN205858853U (en) * 2016-08-08 2017-01-04 大连兴龙液压有限公司 A kind of electromagnetic relief valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5447174A (en) * 1993-08-02 1995-09-05 Hydrolux S.A.R.L. Pilot stage for pressure control valves
CN202746316U (en) * 2012-09-11 2013-02-20 淮安市胜杰液压机械有限公司 Integrated manual overflow reversing valve
CN103511678A (en) * 2013-09-26 2014-01-15 番禺珠江钢管(珠海)有限公司 Direct-acting overflow valve and method for establishing and releasing pressure thereof
CN205858853U (en) * 2016-08-08 2017-01-04 大连兴龙液压有限公司 A kind of electromagnetic relief valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112059714A (en) * 2020-09-15 2020-12-11 陈萍 Mechanical cutting fluid flow control device for machine tool manufacturing
CN112059714B (en) * 2020-09-15 2021-08-27 湖南尚亿智能制造有限公司 Mechanical cutting fluid flow control device for machine tool manufacturing

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Address after: 312300 Siluo village, Xiaoyue Town, Shangyu District, Shaoxing, Zhejiang

Applicant after: Shaoxing Shangyu Hengfeng Machinery Co., Ltd.

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