CN107654436A - A kind of overflow reversal valve calibrated automatically - Google Patents

A kind of overflow reversal valve calibrated automatically Download PDF

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Publication number
CN107654436A
CN107654436A CN201711186002.4A CN201711186002A CN107654436A CN 107654436 A CN107654436 A CN 107654436A CN 201711186002 A CN201711186002 A CN 201711186002A CN 107654436 A CN107654436 A CN 107654436A
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CN
China
Prior art keywords
valve
overflow
spring
electromagnet
spring base
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Granted
Application number
CN201711186002.4A
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Chinese (zh)
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CN107654436B (en
Inventor
王雅莲
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ZHEJIANG ZHONGMEI HYDRAULIC MACHINERY CO., LTD.
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王雅莲
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Priority to CN201711186002.4A priority Critical patent/CN107654436B/en
Publication of CN107654436A publication Critical patent/CN107654436A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/024Pressure relief valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B20/00Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/08Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
    • F16K31/082Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet using a electromagnet and a permanent magnet

Abstract

The invention discloses a kind of overflow reversal valve calibrated automatically, including reversing valve body and overflow valve body, the import of reversing valve body and the inlet communication of overflow valve body, valve element one end of reversing valve body is provided with the first magnet, the first electromagnet coordinated with the first magnet is provided with reversing valve body, overflow valve body includes runner, plug and spring base, spring is provided between spring base and plug, runner side is provided with some spacing raised lines, spring base side is provided with elastic rod, iron block is provided with spring base, the second electromagnet coordinated with iron block is provided with overflow valve body, first electromagnet is connected with the second electromagnet.This kind of overflow reversal valve is capable of the elastic force of automatic adjuster spring after spring force reduction, so that the elastic force that the spring provides is all the time within the limits prescribed, and it can prevent that hydraulic oil leaks oil return box from overflow valve in reversal valve handoff procedure, and be easily achieved the Automated condtrol of valve.

Description

A kind of overflow reversal valve calibrated automatically
Technical field
The invention belongs to valve technology field, specifically a kind of overflow reversal valve 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 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
In view of the shortcomings of the prior art, providing a kind of overflow reversal valve calibrated automatically, this kind of overflow reversal valve exists the present invention Spring force is capable of the elastic force of automatic adjuster spring after reducing so that the elastic force that the spring provides all the time within the limits prescribed, So as to extend the service life of overflow reversal valve, and it can prevent that hydraulic oil leaks from overflow valve in reversal valve handoff procedure Oil return box, 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:It is a kind of calibrate automatically overflow Flow reversal valve, including reversing valve body and overflow valve body, the import of the reversing valve body and the overflow valve body Inlet communication, valve element one end of the reversing valve body are provided with the first magnet, be provided with the reversing valve body with it is described The first electromagnet that first magnet coordinates, the overflow valve body include runner, plug and spring base, the spring base and institute State and spring is provided between plug, the runner side is provided with some spacing raised lines, and the spring base side sets flexible Bar, iron block is provided with the spring base, the second electromagnet coordinated with the iron block, institute are provided with the overflow valve body State the first electromagnet to connect with second electromagnet, the elastic force that the spring base slips over the spacing raised line is equal to the spring To the upper limit of the elastic force prescribed limit of plug, the elastic force of the spring when spring base leans with the adjacent two spacing raised lines Difference is less than the upper limit of elastic force prescribed limit and the difference of lower limit of the spring to plug.This kind of overflow reversal valve is using When, by controlling the sense of current of the first electromagnet to control valve element to move, now the second electromagnet attracts iron block to cause spring base Moved towards the direction of compression spring, elastic rod bending slips over spacing raised line, and spring is compressed so that overflow valve overflows during commutation Flowing pressure increases, and prevents that hydraulic oil leaks oil return box from overflow valve in reversal valve handoff procedure, the first electricity after commutation is completed Magnet and the second electromagnet are powered off, and spring base is pushed back on one of them spacing raised line automatically by the elastic force of spring, by institute The elastic force difference for stating spring when spring base leans with the adjacent two spacing raised lines is less than elastic force of the spring to plug The upper limit of prescribed limit and the difference of lower limit, therefore, now spring to the elastic force of plug all the time in prescribed limit.Due to each During commutation all can to compressing a spring, therefore after spring shortens failure by compress also can spring to the pressure of plug In prescribed limit, so that the service life of overflow reversal valve is elongated, and the Automated condtrol of valve is easily achieved.
In above-mentioned technical proposal, it is preferred that second electromagnet is included around the conductor wire for being located at the overflow valve body Circle and the overflow valve body between the conductive coil.Cause that the structure of overflow valve body is compacter using the structure.
In above-mentioned technical proposal, it is preferred that radial direction slideway is provided with the overflow valve body, is set in the radial direction slideway Sliding block is equipped with, the spacing raised line is arranged on the sliding block, and the slider top is provided through the guiding of overflow valve chest Bar, the guiding boom end are fixed on adjustable plate, are rotated on the adjustable plate and be provided with adjusting nut, the overflow valve chest On be provided with the adjusting nut coordinate adjusting screw hole.Can be by adjusting adjusting nut sliding block liter using the structure Drop, and then cause spacing raised line lifting, the deformation quantity that spring base will slip over spacing raised line elastic rod changes, so as to realize spring pair The elastic force regulation of plug.
In above-mentioned technical proposal, it is preferred that be provided with sealing ring between the radial direction slideway and the sliding block.Using the knot Structure increases the sealing between sliding block and radial direction slideway, prevents hydraulic fluid leak.
The present invention compared with prior art, has the advantages that:This kind of overflow reversal valve when in use, passes through control The sense of current control valve element movement of first electromagnet, now the second electromagnet attraction iron block cause spring base towards compression spring Direction movement, elastic rod bending slips over spacing raised line, and spring is compressed so that the oil pressure relief increase of overflow valve during commutation, Prevent that hydraulic oil leaks oil return box from overflow valve in reversal valve handoff procedure, the first electromagnet and the second electricity after commutation is completed Magnet is powered off, and spring base is pushed back on one of them spacing raised line automatically by the elastic force of spring, due to the spring base and phase The elastic force difference of the spring is less than the spring to the upper of the elastic force prescribed limit of plug when the adjacent two spacing raised lines lean Limit and the difference of lower limit, therefore, now spring to the elastic force of plug all the time in prescribed limit.All can be right during due to commutating every time Compress a spring, therefore spring shorten failure after by compress also can spring to the pressure of plug in prescribed limit It is interior, so that the service life of overflow reversal valve is elongated, and it is 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.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description:Referring to Fig. 1, a kind of automatic school Accurate overflow reversal valve, including reversing valve body 1 and overflow valve body 2, import and the overflow of the reversing valve body 1 The inlet communication of valve body 2, one end of valve element 3 of the reversing valve body 1 are provided with the first magnet 4, on the reversing valve body 1 The first electromagnet 5 coordinated with first magnet 4 is provided with, the overflow valve body 2 includes runner 21, plug 22 and bullet Spring abutment 23, is provided with spring 24 between the spring base 23 and the plug 22, the side of runner 21 is provided with some spacing Raised line 25, the side of spring base 24 are provided with elastic rod 26, and iron block 27, the overflow valve sheet are provided with the spring base 24 The second electromagnet 28 coordinated with the iron block 27 is provided with body 2, first electromagnet 5 is gone here and there with second electromagnet 28 Connection, the elastic force that the spring base 23 slips over the spacing raised line 25 are equal to the spring 24 to the elastic force prescribed limit of plug 22 The upper limit, the elastic force difference of the spring 24 is less than the spring when spring base 23 leans with the adjacent two spacing raised lines 25 The upper limit of elastic force prescribed limit and the difference of lower limit of 24 pairs of plugs 22.This kind of overflow reversal valve when in use, passes through control the The sense of current control valve element movement of one electromagnet, now the second electromagnet attraction iron block cause spring base towards compression spring Direction is moved, and elastic rod bending slips over spacing raised line, and spring is compressed so that the oil pressure relief increase of overflow valve during commutation, is prevented Only hydraulic oil leaks oil return box from overflow valve in reversal valve handoff procedure, the first electromagnet and the second electromagnetism after commutation is completed Iron is powered off, and spring base is pushed back on one of them spacing raised line automatically by the elastic force of spring, due to the spring base with it is adjacent The elastic force difference of the spring is less than the upper limit of the spring to the elastic force prescribed limit of plug when the two spacing raised lines lean With the difference of lower limit, therefore, now spring to the elastic force of plug all the time in prescribed limit.All can be to pressure during due to commutating every time Contract a spring, therefore spring shorten failure after by compress also can spring to the pressure of plug in prescribed limit, So that the service life of overflow reversal valve is elongated, and it is easily achieved the Automated condtrol of valve.Described spring is to plug Elastic force prescribed limit refer to:Spring is to plug elastic force set in advance during normal work.
Second electromagnet 28 is included around the conductive coil 29 for being located at the overflow valve body 2 and positioned at the conduction Overflow valve body 2 between coil 29.Cause that the structure of overflow valve body is compacter using the structure.
Radial direction slideway 210 is provided with the overflow valve body 2, sliding block 211, institute are provided with the radial direction slideway 210 State spacing raised line 25 to be arranged on the sliding block 211, the top of sliding block 211 is provided through the guiding of overflow valve chest 212 Bar 213, the end of guide rod 213 are fixed on adjustable plate 214, are rotated on the adjustable plate 214 and are provided with adjusting nut 215, the adjusting screw hole 216 coordinated with the adjusting nut 215 is provided with the overflow valve chest 212.Using the structure energy It is enough to be lifted by adjusting adjusting nut sliding block, and then cause spacing raised line lifting, spring base will slip over spacing raised line elasticity The deformation quantity of bar changes, so as to realize that spring is adjusted to the elastic force of plug.
Sealing ring 217 is provided between the radial direction slideway 210 and the sliding block 211.Using the structure increase sliding block with Sealing between radial direction slideway, prevents hydraulic fluid leak.

Claims (4)

1. a kind of overflow reversal valve calibrated automatically, including reversing valve body(1)And overflow valve body(2), the reversal valve Body(1)Import and the overflow valve body(2)Inlet communication, it is characterised in that:The reversing valve body(1)Valve element (3)One end is provided with the first magnet(4), the reversing valve body(1)On be provided with and first magnet(4)First coordinated Electromagnet(5), the overflow valve body(2)Including runner(21), plug(22)And spring base(23), the spring base(23) With the plug(22)Between be provided with spring(24), the runner(21)Side is provided with some spacing raised lines(25), it is described Spring base(24)Side is provided with elastic rod(26), the spring base(24)On be provided with iron block(27), the overflow valve body (2)On be provided with and the iron block(27)The second electromagnet coordinated(28), first electromagnet(5)With second electromagnetism Iron(28)Series connection, the spring base(23)Slip over the spacing raised line(25)Elastic force be equal to the spring(24)To plug(22) Elastic force prescribed limit the upper limit, the spring base(23)With the adjacent two spacing raised lines(25)Spring when leaning(24) Elastic force difference be less than the spring(24)To plug(22)The upper limit of elastic force prescribed limit and the difference of lower limit.
A kind of 2. overflow reversal valve calibrated automatically as claimed in claim 1, it is characterised in that:Second electromagnet(28) Including around being located at the overflow valve body(2)Conductive coil(29)And positioned at the conductive coil(29)Between overflow valve sheet Body(2).
A kind of 3. overflow reversal valve calibrated automatically as claimed in claim 1, it is characterised in that:The overflow valve body(2) Inside it is provided with radial direction slideway(210), the radial direction slideway(210)Inside it is provided with sliding block(211), the spacing raised line(25)Set In the sliding block(211)On, the sliding block(211)Top is provided through overflow valve chest(212)Guide rod(213), institute State guide rod(213)Adjustable plate is fixed in end(214)On, the adjustable plate(214)Upper rotation is provided with adjusting nut (215), the overflow valve chest(212)On be provided with and the adjusting nut(215)The adjusting screw hole of cooperation(216).
A kind of 4. overflow reversal valve calibrated automatically as claimed in claim 3, it is characterised in that:The radial direction slideway(210) With the sliding block(211)Between be provided with sealing ring(217).
CN201711186002.4A 2017-11-23 2017-11-23 A kind of overflow reversal valve calibrated automatically Active CN107654436B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711186002.4A CN107654436B (en) 2017-11-23 2017-11-23 A kind of overflow reversal valve calibrated automatically

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711186002.4A CN107654436B (en) 2017-11-23 2017-11-23 A kind of overflow reversal valve calibrated automatically

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CN107654436A true CN107654436A (en) 2018-02-02
CN107654436B CN107654436B (en) 2019-03-05

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2088613U (en) * 1990-12-29 1991-11-13 李如松 Leading type low-power combined electromagnetic valve
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 (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2088613U (en) * 1990-12-29 1991-11-13 李如松 Leading type low-power combined electromagnetic valve
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

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Effective date of registration: 20190125

Address after: 325604 Jianyu Road, Hesheng Village, Liushi Town, Wenzhou City, Zhejiang Province (3rd floor, China Coal Machinery Group Co., Ltd.)

Applicant after: ZHEJIANG ZHONGMEI HYDRAULIC MACHINERY CO., LTD.

Address before: 312369 No. 17, Xijiang Road, East Village, Beizhen Town, Shangyu District, Shaoxing, Zhejiang

Applicant before: Wang Yalian

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