CN104533861A - Conversion valve for static testing - Google Patents

Conversion valve for static testing Download PDF

Info

Publication number
CN104533861A
CN104533861A CN201410738483.5A CN201410738483A CN104533861A CN 104533861 A CN104533861 A CN 104533861A CN 201410738483 A CN201410738483 A CN 201410738483A CN 104533861 A CN104533861 A CN 104533861A
Authority
CN
China
Prior art keywords
hydraulic fluid
fluid port
valve
communicated
spring
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN201410738483.5A
Other languages
Chinese (zh)
Other versions
CN104533861B (en
Inventor
李伟波
吴鸣嵩
付华军
孙镇辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jincheng Nanjing Electromechanical Hydraulic Pressure Engineering Research Center Aviation Industry Corp of China
AVIC Jincheng Nanjing Engineering Institute of Aircraft Systems
Original Assignee
AVIC Jincheng Nanjing Engineering Institute of Aircraft Systems
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 AVIC Jincheng Nanjing Engineering Institute of Aircraft Systems filed Critical AVIC Jincheng Nanjing Engineering Institute of Aircraft Systems
Priority to CN201410738483.5A priority Critical patent/CN104533861B/en
Publication of CN104533861A publication Critical patent/CN104533861A/en
Application granted granted Critical
Publication of CN104533861B publication Critical patent/CN104533861B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/022—Flow-dividers; Priority valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Servomotors (AREA)

Abstract

The invention belongs to the hydraulic pressure field and relates to a conversion valve used for having conversion test for the oil path for servo valve static testing and mainly used for the hydraulic pressure system of the servo valve static testing table. The conversion valve comprises a left end cover, a left spring seat, a left spring, a left orifice, a left top, a valve core, a valve sleeve, a shell, a right orifice, a right tip, a right spring seat, a right end cover, a right spring, a top plug, an adjusting bolt and a locking nut; the valve sleeve is located in the shell. The switch of the oil is controlled for conveniently testing the flow, pressure and interior leakage characteristic of the servo valve; the structure is simple and the reliability is high. The uniform pressure groove is formed on the valve core for preventing the clamping stagnation of the valve core and guaranteeing the sensitive action for the valve core.

Description

A kind of changing valve for static test
Technical field
The invention belongs to Hydraulic Field, relate to a kind of changing valve, for conversion testing oil circuit during electrohydraulic control static test, be mainly used in the hydraulic system of servovalve static test stand.
Background technique
Servovalve is as the core component of servo-control system, and its performance directly determines the characteristic of control system, and factory inspection and acceptance and the maintenance of every platform servovalve all need servovalve static test stand to test its performance.
At present, generally adopt multiple stop valve manual switchover when servovalve static test stand carries out the test such as flow, pressure, interior leakage characteristic of servovalve, test is wasted time and energy; Or adopt common selector valve on the market, although can automation mechanized operation, because common selector valve exists internal leakage, test result application condition be large; Because the hydrovalve used is many, test stand failure frequency is higher.
Summary of the invention
Object of the present invention: in order to overcome the deficiencies in the prior art, designs a kind of electrohydraulic control static test changing valve with conversion function.
Technological scheme of the present invention: a kind of changing valve for static test comprises left end cap 1, left spring seat 2, left spring 3, left throttle orifice 4, left top 5, spool 6, valve pocket 7, housing 8, right throttle orifice 9, right top 10, right spring seat 11, right end cap 12, right spring 13, top plug 14, adjusting screw 15, locking nut 16; Valve pocket 7 is placed in housing 8; Spool 6 is placed in valve pocket 7.
Control oil and enter static test changing valve through left throttle orifice 4, spool 6 overcomes the spring force of right spring 13, spool 6 moves right, second hydraulic fluid port 18 is communicated with the 8th hydraulic fluid port 24,3rd hydraulic fluid port 19 is communicated with the 4th hydraulic fluid port 20,5th hydraulic fluid port 21 is communicated with the 7th hydraulic fluid port 23, now can carry out the Flow characteristics test of servovalve; Control oil and enter static test changing valve through left throttle orifice 9, spool 6 overcomes the spring force of left spring 3, spool 6 is to left movement, second hydraulic fluid port 18 and the 8th hydraulic fluid port 24 block, 3rd hydraulic fluid port 19 is communicated with the 4th hydraulic fluid port 20,5th hydraulic fluid port 21 and the 7th hydraulic fluid port 23 block, and now can carry out the interior leakage characteristic test of servovalve; When not controlling oil, spool 6 gets back to meta under the effect of left spring 3 and right spring 13, and the 3rd hydraulic fluid port 19 is communicated with the 8th hydraulic fluid port 24, and the 4th hydraulic fluid port 20 is communicated with the 7th hydraulic fluid port 23, second hydraulic fluid port 18 and the 5th hydraulic fluid port 21 are all cut off, and now can carry out the Pressure characteristics test of servovalve.
Beneficial effect of the present invention: a kind of changing valve for static test of the present invention, by controlling the conversion of oil, conveniently can carry out the test such as flow, pressure, interior leakage characteristic of servovalve.Structure of the present invention is simple, reliability is high.Spool is provided with balancing slit, prevents spool clamping stagnation, ensures that spool is active in one's movements.
Accompanying drawing illustrates:
Fig. 1 is structural profile schematic diagram of the present invention;
Fig. 2 is structure plan view of the present invention;
Wherein, 1: left end cap, 2: left spring seat, 3: left spring, 4: left throttle orifice, 5: left top, 6: spool, 7: valve pocket, 8: housing, 9: right throttle orifice, 10: right top, 11: right spring seat, 12: right end cap, 13: right spring, 14: top plug, 15: adjusting screw, 16: locking nut, 17: the first hydraulic fluid ports, 18: the second hydraulic fluid ports, 19: the three hydraulic fluid ports, 20: the four hydraulic fluid ports, 21: the five hydraulic fluid ports, 22: the six hydraulic fluid ports, 23: the seven hydraulic fluid ports, 24: the eight hydraulic fluid ports.
Embodiment
Below in conjunction with Figure of description and embodiment, the present invention is described in further detail.
Specific embodiment is that the described changing valve for static test comprises left end cap 1, left spring seat 2, left spring 3, left throttle orifice 4, left top 5, spool 6, valve pocket 7, housing 8, right throttle orifice 9, right top 10, right spring seat 11, right end cap 12, right spring 13, top plug 14, adjusting screw 15, locking nut 16; Valve pocket 7 is placed in housing 8; Spool 6 is placed in valve pocket 7; Valve body comprises the first hydraulic fluid port 17, second hydraulic fluid port 18, the 3rd hydraulic fluid port 19, the 4th hydraulic fluid port 20, the 5th hydraulic fluid port 21, the 6th hydraulic fluid port 22, the 7th hydraulic fluid port 23, the 8th hydraulic fluid port 24, and wherein, the first hydraulic fluid port 17 and the 6th hydraulic fluid port 22 are for controlling mouth; During work, when only the first hydraulic fluid port 17 has high pressure oil, the second hydraulic fluid port 18 is communicated with the 8th hydraulic fluid port 24, and the 3rd hydraulic fluid port 19 is communicated with the 4th hydraulic fluid port 20, and the 5th hydraulic fluid port 21 is communicated with the 7th hydraulic fluid port 23, and the 6th hydraulic fluid port 22 is communicated with fuel tank; When only the 6th hydraulic fluid port 22 has high pressure oil, the second hydraulic fluid port 18 and the 8th hydraulic fluid port 24 block, and the 3rd hydraulic fluid port 19 is communicated with the 4th hydraulic fluid port 20, and the 5th hydraulic fluid port 21 and the 7th hydraulic fluid port 23 block, and the first hydraulic fluid port 17 is communicated with fuel tank; When the first hydraulic fluid port 17 and the 6th hydraulic fluid port 22 are all without high pressure oil, the 3rd hydraulic fluid port 19 is communicated with the 8th hydraulic fluid port 24, and the 4th hydraulic fluid port 20 is communicated with the 7th hydraulic fluid port 23, and the second hydraulic fluid port 18 and the 5th hydraulic fluid port 21 are all cut off.
Be more specifically: the first described hydraulic fluid port 17, the 3rd hydraulic fluid port 19 and the 5th hydraulic fluid port 21 are arranged at the top of described changing valve, second hydraulic fluid port 18, the 4th hydraulic fluid port 20 and the 6th hydraulic fluid port 22 are arranged at the bottom of described changing valve, and the 7th hydraulic fluid port 23 and the 8th hydraulic fluid port 24 are arranged at valve body homonymy.
Be more specifically: described changing valve comprises left throttle orifice 4 and right throttle orifice 9, and left throttle orifice 4 and right throttle orifice 9 are pressed in housing 8.
Be more specifically: the spring force of left spring 3 acts on the left side of spool 6 through left spring seat 2, left top 5; The spring force of right spring 13 acts on the right side of spool 6 through right spring seat 11, right top 10.
Be more specifically: right spring 13 is arranged on inside the plug 14 of top, is regulated the decrement of right spring 13 by adjusting screw 15.
Be more specifically: described changing valve is for testing electrohydraulic control.Control oil and enter servovalve static test changing valve through left throttle orifice 4, spool 6 overcomes the spring force of right spring 13, spool 6 moves right, second hydraulic fluid port 18 is communicated with the 8th hydraulic fluid port 24,3rd hydraulic fluid port 19 is communicated with the 4th hydraulic fluid port 20,5th hydraulic fluid port 21 is communicated with the 7th hydraulic fluid port 23, now can carry out the Flow characteristics test of servovalve; Control oil and enter servovalve static test changing valve through left throttle orifice 9, spool 6 overcomes the spring force of left spring 3, spool 6 is to left movement, second hydraulic fluid port 18 and the 8th hydraulic fluid port 24 block, 3rd hydraulic fluid port 19 is communicated with the 4th hydraulic fluid port 20,5th hydraulic fluid port 21 and the 7th hydraulic fluid port 23 block, and now can carry out the interior leakage characteristic test of servovalve; When not controlling oil, spool 6 gets back to meta under the effect of left spring 3 and right spring 13, and the 3rd hydraulic fluid port 19 is communicated with the 8th hydraulic fluid port 24, and the 4th hydraulic fluid port 20 is communicated with the 7th hydraulic fluid port 23, second hydraulic fluid port 18 and the 5th hydraulic fluid port 21 are all cut off, and now can carry out the Pressure characteristics test of servovalve.

Claims (6)

1. for a changing valve for static test, it is characterized in that: comprise left end cap [1], left spring seat [2], left spring [3], left throttle orifice [4], left top [5], spool [6], valve pocket [7], housing [8], right throttle orifice [9], right top [10], right spring seat [11], right end cap [12], right spring [13], top plug [14], adjusting screw [15], locking nut [16]; Valve pocket [7] is placed in housing [8]; Spool [6] is placed in valve pocket [7]; Valve body [8] comprises the first hydraulic fluid port [17], the second hydraulic fluid port [18], the 3rd hydraulic fluid port [19], the 4th hydraulic fluid port [20], the 5th hydraulic fluid port [21], the 6th hydraulic fluid port [22], the 7th hydraulic fluid port [23], the 8th hydraulic fluid port [24], wherein, the first hydraulic fluid port [17] and the 6th hydraulic fluid port [22] are for controlling mouth; During work, when only the first hydraulic fluid port [17] has high pressure oil, second hydraulic fluid port [18] is communicated with the 8th hydraulic fluid port [24], 3rd hydraulic fluid port [19] is communicated with the 4th hydraulic fluid port [20], 5th hydraulic fluid port [21] is communicated with the 7th hydraulic fluid port [23], and the 6th hydraulic fluid port [22] is communicated with fuel tank; When only the 6th hydraulic fluid port [22] has high pressure oil, second hydraulic fluid port [18] and the 8th hydraulic fluid port [24] block, 3rd hydraulic fluid port [19] is communicated with the 4th hydraulic fluid port [20], and the 5th hydraulic fluid port [21] and the 7th hydraulic fluid port [23] block, and the first hydraulic fluid port [17] is communicated with fuel tank; When the first hydraulic fluid port [17] and the 6th hydraulic fluid port [22] are all without high pressure oil, 3rd hydraulic fluid port [19] is communicated with the 8th hydraulic fluid port [24], 4th hydraulic fluid port [20] is communicated with the 7th hydraulic fluid port [23], and the second hydraulic fluid port [18] and the 5th hydraulic fluid port [21] are all cut off.
2. changing valve according to claim 1, it is characterized in that: described the first hydraulic fluid port [17], the 3rd hydraulic fluid port [19] and the 5th hydraulic fluid port [21] are arranged at the top of described changing valve, second hydraulic fluid port [18], the 4th hydraulic fluid port [20] and the 6th hydraulic fluid port [22] are arranged at the bottom of described changing valve, and the 7th hydraulic fluid port [23] and the 8th hydraulic fluid port [24] are arranged at valve body homonymy.
3. changing valve according to claim 1 and 2, is characterized in that: described changing valve comprises left throttle orifice [4] and right throttle orifice [9], and left throttle orifice [4] and right throttle orifice [9] are pressed in housing [8].
4. according to the static test changing valve one of claims 1 to 3 Suo Shu, it is characterized in that: the spring force of left spring [3] acts on the left side of spool [6] through left spring seat [2], left top [5]; The spring force of right spring [13] acts on the right side of spool [6] through right spring seat [11], right top [10].
5. according to the changing valve one of Claims 1-4 Suo Shu, it is characterized in that: right spring [13] is arranged on the inside, top plug [14], is regulated the decrement of right spring [13] by adjusting screw [15].
6. according to the changing valve one of Claims 1-4 Suo Shu, it is characterized in that: described changing valve is for testing electrohydraulic control.
CN201410738483.5A 2014-12-05 2014-12-05 A kind of switching valve for static test Active CN104533861B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410738483.5A CN104533861B (en) 2014-12-05 2014-12-05 A kind of switching valve for static test

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410738483.5A CN104533861B (en) 2014-12-05 2014-12-05 A kind of switching valve for static test

Publications (2)

Publication Number Publication Date
CN104533861A true CN104533861A (en) 2015-04-22
CN104533861B CN104533861B (en) 2016-08-24

Family

ID=52849449

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410738483.5A Active CN104533861B (en) 2014-12-05 2014-12-05 A kind of switching valve for static test

Country Status (1)

Country Link
CN (1) CN104533861B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111379878A (en) * 2018-12-28 2020-07-07 Ckd株式会社 Slide valve
CN112664510A (en) * 2020-11-27 2021-04-16 北京精密机电控制设备研究所 Pre-stage performance integration testing device of partial derivative jet servo valve

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789736A (en) * 1970-12-11 1974-02-05 Dowty Boulton Paul Ltd Multiple hydraulic actuator
US3826090A (en) * 1973-07-25 1974-07-30 Deere & Co Variable pressure hydraulic system
CN1294267A (en) * 1999-11-01 2001-05-09 卜劲松 3-position 4-way centralizing block for stabilizing hydraulic pressure
CN2913704Y (en) * 2006-03-09 2007-06-20 隋宝臣 Diverter valve
CN2924107Y (en) * 2006-03-27 2007-07-18 泸州市江阳区长江液压配件总厂 Oil-circuit converter
CN202900822U (en) * 2012-10-12 2013-04-24 浙江交通职业技术学院 Dual-redundancy three-position four-way directional control valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789736A (en) * 1970-12-11 1974-02-05 Dowty Boulton Paul Ltd Multiple hydraulic actuator
US3826090A (en) * 1973-07-25 1974-07-30 Deere & Co Variable pressure hydraulic system
CN1294267A (en) * 1999-11-01 2001-05-09 卜劲松 3-position 4-way centralizing block for stabilizing hydraulic pressure
CN2913704Y (en) * 2006-03-09 2007-06-20 隋宝臣 Diverter valve
CN2924107Y (en) * 2006-03-27 2007-07-18 泸州市江阳区长江液压配件总厂 Oil-circuit converter
CN202900822U (en) * 2012-10-12 2013-04-24 浙江交通职业技术学院 Dual-redundancy three-position four-way directional control valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111379878A (en) * 2018-12-28 2020-07-07 Ckd株式会社 Slide valve
CN111379878B (en) * 2018-12-28 2023-05-30 Ckd株式会社 Slide valve
CN112664510A (en) * 2020-11-27 2021-04-16 北京精密机电控制设备研究所 Pre-stage performance integration testing device of partial derivative jet servo valve
CN112664510B (en) * 2020-11-27 2022-12-09 北京精密机电控制设备研究所 Pre-stage performance integration testing device for offset jet servo valve

Also Published As

Publication number Publication date
CN104533861B (en) 2016-08-24

Similar Documents

Publication Publication Date Title
CN201875226U (en) Sequence valve
CN201568617U (en) High-flow electric control check valve
CN203784001U (en) Overflow valve
CN104533861A (en) Conversion valve for static testing
CN203230678U (en) Hydraulic actuator inlet and outlet flow pressure independent controlling system
CN203214466U (en) Flow-regeneratable hydraulic locking valve device
CN105179349A (en) Automatic pressure switching selector valve
CN203176467U (en) Direct-acting type overflow valve
CN204113788U (en) The Embedded shunting relief valve of a kind of shuttle valve
CN204082762U (en) The automatic reciprocating oil hydraulic cylinder of a kind of integrated form
CN104141813A (en) Direct-acting overflow valve
CN204459189U (en) Air bladder regulating valve of two-seater
CN201696383U (en) Energy-saving double-redundancy electro-hydraulic servo valve
CN104265709B (en) A kind of overlapping sequence valve
CN103574112B (en) A kind of pressure regulator valve of oil system peculiar to vessel
CN103174693A (en) Flow regeneration hydraulic lock valve device
CN203285767U (en) Active oil return supercharging device
CN204061383U (en) A kind of New-type of Electro-hydraulic Servo-valve device
CN203770614U (en) Automatic speed changer shifting valve
CN204114243U (en) A kind of overlapping sequence valve
CN220302437U (en) Electric control reversing valve
CN204476902U (en) A kind of load-sensitive valve
CN205173562U (en) Novel logical choice valve valve rod structure
CN103452935A (en) Hydraulic valve for closed system with pump output pressure not interfered by load
CN203584947U (en) Compact outer control direct operated overflow valve

Legal Events

Date Code Title Description
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant