CN101451559B - Pressure test frock for electro-hydraulic servo valve pilot valve component - Google Patents
Pressure test frock for electro-hydraulic servo valve pilot valve component Download PDFInfo
- Publication number
- CN101451559B CN101451559B CN200710171543XA CN200710171543A CN101451559B CN 101451559 B CN101451559 B CN 101451559B CN 200710171543X A CN200710171543X A CN 200710171543XA CN 200710171543 A CN200710171543 A CN 200710171543A CN 101451559 B CN101451559 B CN 101451559B
- Authority
- CN
- China
- Prior art keywords
- valve body
- guide
- capping
- hole
- end surface
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Servomotors (AREA)
Abstract
The present invention discloses a pressure test fixture used for electrohydraulic servo valve pilot-actuated valve body, which includes a top surface sealing cover and a bottom surface sealing cover, wherein the bottom surface sealing cover can seal central locating hole on lower end-face of the pilot-actuated valve body and control the oil port; a helical burr blind hole that used to connect the high-pressure oil tube is horizontally set on front lateral side; an oil through hole that communicates with the helical burr blind hole and screwed hole corresponding to mounting through hole of the pilot-actuated valve body are vertically set on the central upper end face of the bottom surface sealing cover; the top surface sealing cover can seal the central locating hole on upper end face of the pilot-actuated valve body; a through hole corresponding to the mounting helical burr blind hole of the pilot-actuated valve body is set on end face of the top surface sealing cover; the pilot-actuated valve body is held between upper end face of the bottom surface sealing cover and lower end face of the top surface sealing cover, and the oil through hole on the bottom surface sealing cover communicates with the central locating hole of the pilot-actuated valve body. The fixture provided in the invention provides convenience on pressure test of pilot-actuated valve body components with simple assembling, convenient test and strong practicability.
Description
Technical field
The present invention relates to a kind of safety inspection frock of hydraulic unit, relate in particular to a kind of pressure test frock that is used for electro-hydraulic servo valve pilot valve component.
Background technique
Electrohydraulic control has experienced 50 years in the development of international professional domain, and the occasion of application also more and more widely.Guide's valve component is the vitals in the electrohydraulic control; Guide's valve body can unavoidably stay auxiliary hole when machining; This auxiliary hole is unnecessary in the real work of pilot valve body assembly, for blocking auxiliary hole, can be pressed into the bloated plug of ball usually; For preventing its seepage, do pressure test to guide's valve component.Guide's valve component comprises: guide's valve body, Receiver, the bloated plug of ball; Magnitude of interference between Receiver and the guide's valve body is 0.008-0.012mm, is press-fitted the back and guarantees plan range 9.35 ± 0.01mm on Receiver plane and the guide's valve body, and guide's valve component is after auxiliary hole is pressed into the bloated plug of ball, and pump pressure 21MPa is oil-proof.Demand developing a kind of simple, convenient test, practical pressure test test fixture that is used for electro-hydraulic servo valve pilot valve component assembled with this understanding urgently.
Summary of the invention
The objective of the invention is to solve the problems referred to above that existing technology exists, a kind of simple, convenient test, practical pressure test frock that is used for electro-hydraulic servo valve pilot valve component assembled is provided.
The objective of the invention is to be achieved: a kind of pressure test frock that is used for electro-hydraulic servo valve pilot valve component by following technological scheme; Said guide's valve component comprises the guide's valve body with center through hole and is placed in the Receiver in the center through hole; The lower end surface of this guide's valve body is provided with the control port that is symmetrically located at the center positioning hole both sides and is communicated with this center positioning hole; The upper-end surface of this guide's valve body is provided with some installation through holes and some installation tapped blind holes; Have an auxiliary hole through the bloated plug capping of ball on one side of this guide's valve body, said pressure test frock comprises a bottom surface capping and a top capping, wherein:
But the center positioning hole and the control port of said bottom surface capping capping guide valve body lower end surface; Flatly be provided with on its leading flank one be used to connect high-pressure oil pipe tapped blind hole, be provided with to the central vertical of the upper-end surface of this bottom surface capping one be communicated with the oil through of said tapped blind hole and be provided with guide's valve body on installation through holes respective threads hole;
But the center positioning hole of said top capping capping guide valve body upper-end surface, its end face be provided with guide's valve body on the corresponding through hole of installation tapped blind hole;
Between the upper-end surface that said guide's valve body is clamped in the bottom surface capping and the lower end surface of top capping and the oil through of bottom surface capping be communicated with the center positioning hole of guide's valve body; Installation through holes and the screw of the tapped hole that screw in bottom surface capping of said bottom surface capping through passing guide's valve body is connected with guide's valve body, and through hole and the screw of the tapped blind hole that screw in guide valve body of said top capping through passing the top capping is connected with guide's valve body.
The above-mentioned pressure test frock that is used for electro-hydraulic servo valve pilot valve component; Wherein, be equipped with seal ring between the lower end surface of the center positioning hole of said guide's valve body upper-end surface and top capping and between the upper-end surface of center positioning hole, control port and the bottom surface capping of guide's valve body lower end surface.
The withstand voltage test method of a kind of electro-hydraulic servo valve pilot valve component of the present invention is executed in the pressure test frock that is used for electro-hydraulic servo valve pilot valve component as claimed in claim 1, and this method comprises the following steps:
At first, prepare the pressure test test fixture; Then, connect bottom surface capping and guide's valve component; Then, connect top capping and guide's valve component; At last, import high pressure oil and carry out the leakage of oil test through the oil through of bottom surface capping.
Adopted the pressure test frock that is used for electro-hydraulic servo valve pilot valve component of the present invention, made things convenient for the pressure test of test guide valve component, simple, the convenient test, practical of this frock assembling.
Description of drawings
Fig. 1 a, Fig. 1 b are respectively the sectional view and the plan view of electro-hydraulic servo valve pilot valve component;
Fig. 2 a, Fig. 2 b are respectively the sectional view and the plan view of the bottom surface capping of the pressure test frock that is used for electro-hydraulic servo valve pilot valve component of the present invention;
Fig. 3 is the plan view of the top capping of the pressure test frock that is used for electro-hydraulic servo valve pilot valve component of the present invention;
Fig. 4 is the user mode schematic representation that is used for the pressure test frock of electro-hydraulic servo valve pilot valve component of the present invention.
Embodiment
Provide embodiment of the present invention below in conjunction with accompanying drawing:
See also Fig. 1; Electro-hydraulic servo valve pilot valve component comprises the guide's valve body 1 with center through hole 10 and is placed in the Receiver 2 in the center through hole 10; The lower end surface of this guide's valve body 1 is provided with the control port 11 that is symmetrically located at center positioning hole 10 both sides and is communicated with this center positioning hole 10; The upper-end surface of this guide's valve body 1 is provided with four installation through holes 12 and four installation tapped blind holes 13, has an auxiliary hole 14 through the bloated plug capping 3 of ball on the side of this guide's valve body 1.
See also Fig. 2, Fig. 3, Fig. 4 again, the pressure test frock that is used for electro-hydraulic servo valve pilot valve component of the present invention comprises a bottom surface capping 4 and a top capping 5, wherein:
But the center positioning hole 10 and the control port 11 of bottom surface capping 4 capping guide valve bodies 1 lower end surface; Flatly be provided with on its leading flank one be used to connect high-pressure oil pipe tapped blind hole 41, be provided with to the central vertical of the upper-end surface of this bottom surface capping 4 one and be communicated with the oil through 40 of tapped blind hole 41 and be provided with the installation through holes 12 respective threads holes 42 with guide's valve body 1;
But the center positioning hole 10 of top capping 5 capping guide valve bodies 1 upper-end surface, its end face are provided with the installation tapped blind hole 13 corresponding through holes 53 with guide's valve body 1;
Between the upper-end surface that guide's valve body 1 is clamped in bottom surface capping 4 and the lower end surface of top capping 5 and the oil through 40 of bottom surface capping 4 be communicated with the center positioning hole 10 of guide's valve body 1; Installation through holes 12 and the screw (not shown) of the tapped hole 42 that screw in bottom surface capping 4 of bottom surface capping 4 through passing guide's valve body 1 is connected with guide's valve body 1; Through hole 53 and the screw (not shown) of the tapped blind hole 13 that screw in guide valve body 1 of top capping 5 through passing top capping 5 is connected with guide's valve body 1.
Be equipped with seal ring 7 between the upper-end surface of center positioning hole 10, control port 11 and the bottom surface capping 4 of between the center positioning hole 10 of guide's valve body 1 upper-end surface and the lower end surface of top capping 5 and guide's valve body 1 lower end surface.
The withstand voltage test method of electro-hydraulic servo valve pilot valve component of the present invention is executed in the above-mentioned pressure test frock that is used for electro-hydraulic servo valve pilot valve component, and this method comprises the following steps:
At first, prepare the pressure test test fixture; Then, connect bottom surface capping 4 and guide's valve component 1 with screw; Then, cover top capping 5 and connect top capping 5 and guide's valve component 1 with screw; At last, the 40 input pump pressures of the oil through through bottom surface capping 4 are that the high pressure oil of 21Mpa carries out the leakage of oil test.
Those of ordinary skill in the art will be appreciated that; Above embodiment is used for explaining the present invention; And be not to be used as qualification of the present invention; The present invention can also change and more mode, as long as in connotation scope of the present invention, all will drop in claims scope of the present invention the above embodiment's variation, modification.
Claims (2)
1. pressure test frock that is used for electro-hydraulic servo valve pilot valve component; Said guide's valve component comprises the guide's valve body with center through hole and is placed in the Receiver in the center through hole; The lower end surface of this guide's valve body is provided with the control port that is symmetrically located at the center positioning hole both sides and is communicated with this center positioning hole; The upper-end surface of this guide's valve body is provided with some installation through holes and some installation tapped blind holes; Have an auxiliary hole through the bloated plug capping of ball on one side of this guide's valve body, said pressure test frock comprises a bottom surface capping and a top capping, it is characterized in that:
But the center positioning hole and the control port of said bottom surface capping capping guide valve body lower end surface; Flatly be provided with on its leading flank one be used to connect high-pressure oil pipe tapped blind hole, be provided with to the central vertical of the upper-end surface of this bottom surface capping one be communicated with the oil through of the said tapped blind hole that is used to connect high-pressure oil pipe and be provided with guide's valve body on installation through holes respective threads hole;
Be equipped with seal ring between the upper-end surface of center positioning hole, control port and the bottom surface capping of between the center positioning hole of said guide's valve body upper-end surface and the lower end surface of top capping and guide's valve body lower end surface;
But the center positioning hole of said top capping capping guide valve body upper-end surface, its end face be provided with guide's valve body on the corresponding through hole of installation tapped blind hole;
Between the upper-end surface that said guide's valve body is clamped in the bottom surface capping and the lower end surface of top capping and the oil through of bottom surface capping be communicated with the center positioning hole of guide's valve body; Installation through holes and the screw of the tapped hole that screw in bottom surface capping of said bottom surface capping through passing guide's valve body is connected with guide's valve body, and through hole and the screw of the tapped blind hole that screw in guide valve body of said top capping through passing the top capping is connected with guide's valve body.
2. the withstand voltage test method of an electro-hydraulic servo valve pilot valve component is executed in the pressure test frock that is used for electro-hydraulic servo valve pilot valve component as claimed in claim 1, and this method comprises the following steps:
At first, prepare the pressure test test fixture; Then, connect bottom surface capping and guide's valve component; Then, connect top capping and guide's valve component; At last, import high pressure oil and carry out the leakage of oil test through the oil through of bottom surface capping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710171543XA CN101451559B (en) | 2007-11-30 | 2007-11-30 | Pressure test frock for electro-hydraulic servo valve pilot valve component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710171543XA CN101451559B (en) | 2007-11-30 | 2007-11-30 | Pressure test frock for electro-hydraulic servo valve pilot valve component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101451559A CN101451559A (en) | 2009-06-10 |
| CN101451559B true CN101451559B (en) | 2012-07-25 |
Family
ID=40733982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710171543XA Expired - Fee Related CN101451559B (en) | 2007-11-30 | 2007-11-30 | Pressure test frock for electro-hydraulic servo valve pilot valve component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101451559B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539076B (en) * | 2011-12-28 | 2014-03-12 | 中国计量学院 | Pilot valve air tightness testing device |
| CN105003489B (en) * | 2014-04-17 | 2017-03-08 | 上海汽车集团股份有限公司 | Double clutch gearbox valve body hydraulic pressure testing devices |
| CN113202839B (en) * | 2021-04-13 | 2023-03-24 | 中国煤炭科工集团太原研究院有限公司 | Pilot valve for measuring valve element displacement of multi-way valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3270557A (en) * | 1964-03-26 | 1966-09-06 | Owatonna Tool Co | Hydraulic circuit tester |
| CN2078388U (en) * | 1990-03-29 | 1991-06-05 | 山东益都阀门厂 | Device for valve pressure testing |
| CN1514218A (en) * | 2003-07-30 | 2004-07-21 | 浙江大学 | Valve pocket moving type hydralic valve inner flow field pressure distribution measuring device |
| US7146844B2 (en) * | 2002-12-16 | 2006-12-12 | Columbus Equipment Company | Apparatus and method for testing hydraulic pressure relief valves |
-
2007
- 2007-11-30 CN CN200710171543XA patent/CN101451559B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3270557A (en) * | 1964-03-26 | 1966-09-06 | Owatonna Tool Co | Hydraulic circuit tester |
| CN2078388U (en) * | 1990-03-29 | 1991-06-05 | 山东益都阀门厂 | Device for valve pressure testing |
| US7146844B2 (en) * | 2002-12-16 | 2006-12-12 | Columbus Equipment Company | Apparatus and method for testing hydraulic pressure relief valves |
| CN1514218A (en) * | 2003-07-30 | 2004-07-21 | 浙江大学 | Valve pocket moving type hydralic valve inner flow field pressure distribution measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101451559A (en) | 2009-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101451559B (en) | Pressure test frock for electro-hydraulic servo valve pilot valve component | |
| CN203385524U (en) | Hydraulic-drive pressure testing tool of valve | |
| CN105179708A (en) | Energy-saving balance high-pressure valve and design method | |
| CN110081226A (en) | A kind of subsea control modules integrated hydraulic basal disc | |
| CN202040134U (en) | Cartridge balanced valve | |
| CN203098443U (en) | Overflow structure used for hydraulic pile-up valve of harvester and hydraulic pile-up valve | |
| CN101451558B (en) | Pressure test frock for electro-hydraulic servo valve body | |
| CN201288862Y (en) | Pilot-operated check valve | |
| CN201461617U (en) | Hydraulic servo system multifunctional flushing plate | |
| CN203614486U (en) | Hydraulic control one-way valve | |
| CN201318475Y (en) | Shutter valve | |
| CN102797433B (en) | Differential deep water blowout preventer control valve | |
| CN102889256A (en) | Triple redundancy servo valve, valve pressure debugging method and assembly used for debugging method | |
| CN212975315U (en) | Hydraulic loading control system for coal mill | |
| CN201288863Y (en) | Superpose installation pilot-controlled check valve | |
| CN203614487U (en) | Hydraulic control one-way valve | |
| CN201125893Y (en) | Bidirectional balanced valve | |
| CN101435445B (en) | Liquid-controlled non-return valve | |
| CN2839690Y (en) | Superimposed relief valve | |
| CN112460092A (en) | Flow valve and overflow valve integrated threaded cartridge valve | |
| CN103195946B (en) | Pilot valve | |
| CN209540133U (en) | A kind of double membrane configurations hold pressure pressure release control pilot valve | |
| CN102734551B (en) | Water box inlet valve and water guide board | |
| CN105257970B (en) | Pressure regulator valve | |
| CN206072016U (en) | A kind of pressure maintaining valve test equipment oil way switching mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20131130 |