CN107063652A - A kind of unidirectional valve opening pressure quick detection testing stand - Google Patents
A kind of unidirectional valve opening pressure quick detection testing stand Download PDFInfo
- Publication number
- CN107063652A CN107063652A CN201611218062.5A CN201611218062A CN107063652A CN 107063652 A CN107063652 A CN 107063652A CN 201611218062 A CN201611218062 A CN 201611218062A CN 107063652 A CN107063652 A CN 107063652A
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- valve
- pressure
- unidirectional
- testing stand
- cleaner
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
The present invention relates to a kind of unidirectional valve opening pressure quick detection testing stand, belong to check valve technical field of pressure detection.Including fuel tank, hydraulic pump, cleaner, two-bit triplet magnetic valve, upper pressure limit loop, low pressure limit loop, 2/2-way magnetic valve, flow sensor, tested nozzle, splash pan and oil return cleaner, the fuel tank, hydraulic pump, cleaner, two-bit triplet magnetic valve is sequentially connected by jointing and oil pipe, 2/2-way magnetic valve is consecutively connected to by upper pressure limit loop or low pressure limit loop respectively again, flow sensor, tested nozzle, splash pan, oil return cleaner, the testing stand is by increasing a two-bit triplet electromagnetism Vavle switching pressure, unidirectional valve opening pressure is upper in the tested nozzle of inspection, whether lower limit is qualified；The present invention is realized while reducing cost, and detection efficiency greatly improved.
Description
Technical field
The present invention relates to check valve technical field of pressure detection, more particularly to a kind of unidirectional valve opening pressure quick detection examination
Test platform.
Background technology
The unidirectional valve opening pressure quick detection testing stand of engine piston cooling nozzle, belongs to engine piston cooling nozzle
One of assembly essential items for inspection, the whether qualified height for being related to engine piston functional reliability of check valve starts to guarantee
Machine, which safely and reliably works, plays vital effect.
Because the product performance of each engine producer is different, the setting to unidirectional valve opening pressure value is different about 1.5
Between~2bar, there is error in one-way valve member in machining accuracy, and its Opening pressure has a Upper-lower Limit deviation general
For ± 10%, because piston cooling nozzle overall dimensions are smaller, influence of each component processing error to assembly is larger, adds assembling
When the accumulation of error, assembly Opening pressure value is overproof unavoidable.
At present, substantially there are two species to the equipment that the unidirectional valve opening pressure Opening pressure of piston cooling nozzle is detected on the market
Type：One is that constant displacement pump is loaded with constant-seed motor, and proportioning valve pressure regulation is used in pressure oil circuit；Two be that constant displacement pump matches somebody with somebody buncher, by adjusting
Speed motor speed change changes pressure, but both equipment costs are high and detection efficiency is low.
The content of the invention
The problem of for shortcomings and deficiencies in the prior art, the present invention proposes a kind of unidirectional valve opening pressure quick detection
Testing stand, realizes while reduce cost, detection efficiency greatly improved.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of unidirectional valve opening pressure quick detection testing stand, including fuel tank, hydraulic pump, cleaner, two-bit triplet magnetic valve, pressure
Power upper limit loop, low pressure limit loop, 2/2-way magnetic valve, flow sensor, tested nozzle, splash pan and oil return filtering
Device, the fuel tank, hydraulic pump, cleaner, two-bit triplet magnetic valve are sequentially connected by jointing and oil pipe, then passed through respectively
Upper pressure limit loop or low pressure limit loop are consecutively connected to 2/2-way magnetic valve, flow sensor, tested nozzle, receipts oil
Disk, oil return cleaner.
Further, the upper pressure limit loop is made up of overflow valve, pressure sensor, unidirectional stop valve, and overflow valve connects
Unidirectional stop valve is connect, between pressure sensor access overflow valve and unidirectional stop valve.
Further, the low pressure limit loop is made up of overflow valve, pressure sensor, unidirectional stop valve, and overflow valve connects
Unidirectional stop valve is connect, between pressure sensor access overflow valve and unidirectional stop valve.
Further, the hydraulic pump is connected with motor.
The present invention has the advantages that：One two-bit triplet magnetic valve of present invention increase, two unidirectional stop valves,
About 1000 yuan of two overflow valves, jointing and oil pipe cost；A proportioning valve or a set of speed governing are reduced compared to routine test platform
Controller, price is about 5000 yuan（It is domestic）~12000 yuan（Import）, saved great amount of cost.One test beat of the present invention
For 9.2~14.2 seconds, at least * 3600 seconds 8 hours ÷ 14.2=2030 of production capacity, compared to routine test platform meet yield 3000/
5~6 equipment are needed during class, effect are improved more than 4 times, the need for production in enormous quantities being met.
Brief description of the drawings
Fig. 1 is principle schematic diagram of the present invention.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.In addition, it is to be understood that after the content of the invention lectured has been read, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
As illustrated, a kind of unidirectional valve opening pressure quick detection testing stand, including fuel tank 1, hydraulic pump 2, cleaner 3,
Two-bit triplet magnetic valve 4, upper pressure limit loop 10, low pressure limit loop 20,2/2-way magnetic valve 5, flow sensor 6, quilt
Test nozzles 7, splash pan 8 and oil return cleaner 9, the fuel tank 1, hydraulic pump 2, cleaner 3, two-bit triplet magnetic valve 4 pass through
Jointing and oil pipe are sequentially connected, then by upper pressure limit loop 10 or low pressure limit loop 20 are consecutively connected to two respectively
Two three-way electromagnetic valves 5, flow sensor 6, tested nozzle 7, splash pan 8, oil return cleaner 9.
The upper pressure limit loop 10 is made up of overflow valve 11, pressure sensor 12, unidirectional stop valve 13.
Overflow valve 11 is debugged to the Opening pressure higher limit of the tested check valve of nozzle 7 before the test, passes through pressure sensing
Device 12 carrys out feedback pressure force value, and overflow valve 11 is just no longer adjusted after the completion of debugging with this higher limit identical product, unidirectional stop valve
13 are used for stopping that oil is flowed back to after another loop UNICOM under this loop closed mode.
The low pressure limit loop 20 is made up of overflow valve 21, pressure sensor 22, unidirectional stop valve 23.
Overflow valve 21 is debugged to the Opening pressure lower limit of the tested check valve of nozzle 7 before the test, passes through pressure sensing
Device 22 carrys out feedback pressure force value, and overflow valve 21 is just no longer adjusted after the completion of debugging with this lower limit identical product, unidirectional stop valve
23 are used for stopping that oil is flowed back to after another loop UNICOM under this loop closed mode.
Specifically, after testing stand starts, the no power of two-bit triplet magnetic valve 4, the UNICOM of low pressure limit loop 20, in fuel tank 1
The hydraulic pump 2 that drives via motor 31 of lubricating oil produce pressure oil stream, pass through two-position three-way valve after being filtered through cleaner 3
4 enter after overflow valve 21, and offline oil pressure is shown after the sensing oil pressure of pressure sensor 22, and lower limit oil stream passes through unidirectional stop valve 23
After stop.After tested nozzle 7 containing check valve is installed, operative employee presses start button, from pass after the energization of 2/2-way valve 5
Closed state is to on-state, and pressure oil stream after 2/2-way valve 5, flow sensor 6 by acting on the unidirectional of tested nozzle 7
On valve.Testing stand pressurize, the check valve for being tested nozzle 7 is not fuel-displaced, and flow sensor 6 is unchanged, is tested the unidirectional of nozzle 7
Valve is qualified, and testing stand is transferred to upper pressure limit loop 10 and carries out test Opening pressure higher limit after pressurize 4 seconds；Conversely, it is unqualified, survey
Loop termination is tried, 2/2-way valve 5 is closed, operative employee changes tested nozzle 7, into next test loop.
After the test passes of testing stand low pressure limit loop 20, two-position three-way valve 4 is powered, and upper pressure limit loop 10 is connected, pressure
Power oil stream passes through after overflow valve 11, is sensed by pressure sensor 12 and upper limit oil pressure is shown after oil pressure, and upper limit oil pressure oil stream passes through
After unidirectional stop valve 13, by 2/2-way valve 5, flow sensor 6, into the check valve of tested nozzle 7, testing stand is protected
Pressure, the tested check valve of nozzle 7 is fuel-displaced, and flow sensor 6 produces change, and the check valve for being tested nozzle 7 is qualified, and check valve goes out
Oil flows into splash pan 8, to recovery fuel tank after being filtered through oil return cleaner 9；Conversely, the check valve of tested nozzle 7 is unqualified.Protect
Pressure is after 4 seconds, and the power-off of 2/2-way valve 5 is closed, the power-off pressure oil of two-position three-way valve 4 enters low pressure limit loop 20 and keeps lower limit oil
Pressure, testing stand enters next circulation to be tested.Operative employee changes tested nozzle 7.
One two-bit triplet magnetic valve of present invention increase, two unidirectional stop valves, two overflow valves, jointing and oil
About 1000 yuan of pipe cost；A proportioning valve or a set of speed setting controller are reduced compared to routine test platform, price is about 5000 yuan
（It is domestic）~12000 yuan（Import）, saved great amount of cost.
One test beat of the present invention is 9.2~14.2 seconds, is placed an order class's yield 2000 in full eligible state, than conventional examination
Test platform and improve efficiency more than 4 times, be that enterprise reduces large number quipments input and artificial, improve Competitive Products.
Claims (4)
1. a kind of unidirectional valve opening pressure quick detection testing stand, it is characterised in that：Including fuel tank, hydraulic pump, cleaner, two
Three-way magnetic valve, upper pressure limit loop, low pressure limit loop, 2/2-way magnetic valve, flow sensor, tested nozzle, receipts
Food tray and oil return cleaner, the fuel tank, hydraulic pump, cleaner, two-bit triplet magnetic valve by jointing and oil pipe successively
Be connected, then respectively by upper pressure limit loop or low pressure limit loop be consecutively connected to 2/2-way magnetic valve, flow sensor,
Tested nozzle, splash pan, oil return cleaner.
2. a kind of unidirectional valve opening pressure quick detection testing stand according to claim 1, it is characterised in that：The pressure
Upper limit loop is made up of overflow valve, pressure sensor, unidirectional stop valve, and overflow valve connection unidirectional stop valve, pressure sensor connects
Enter between overflow valve and unidirectional stop valve.
3. a kind of unidirectional valve opening pressure quick detection testing stand according to claim 1, it is characterised in that：The pressure
Lower limit loop is made up of overflow valve, pressure sensor, unidirectional stop valve, and overflow valve connection unidirectional stop valve, pressure sensor connects
Enter between overflow valve and unidirectional stop valve.
4. a kind of unidirectional valve opening pressure quick detection testing stand according to claim 1, it is characterised in that：The hydraulic pressure
Pump is connected with motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611218062.5A CN107063652A (en) | 2016-12-26 | 2016-12-26 | A kind of unidirectional valve opening pressure quick detection testing stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611218062.5A CN107063652A (en) | 2016-12-26 | 2016-12-26 | A kind of unidirectional valve opening pressure quick detection testing stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107063652A true CN107063652A (en) | 2017-08-18 |
Family
ID=59623917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611218062.5A Pending CN107063652A (en) | 2016-12-26 | 2016-12-26 | A kind of unidirectional valve opening pressure quick detection testing stand |
Country Status (1)
| Country | Link |
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| CN (1) | CN107063652A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051198A (en) * | 2018-01-16 | 2018-05-18 | 重庆安木科技有限公司 | A kind of detecting system of piston cooling nozzle |
| CN108254167A (en) * | 2017-12-29 | 2018-07-06 | 广州市上腾电子科技有限公司 | A kind of discharge coefficient test gas circuit and its application method |
| CN109186879A (en) * | 2018-08-21 | 2019-01-11 | 南京越博动力系统股份有限公司 | A kind of gearbox seal test table and its test method |
| CN112985801A (en) * | 2021-02-22 | 2021-06-18 | 一汽解放汽车有限公司 | System and method for testing opening pressure and sealing performance of check valve of fuel pump |
| CN108051198B (en) * | 2018-01-16 | 2024-04-26 | 重庆安木科技有限公司 | Detection system of piston cooling nozzle |
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| JP2000193563A (en) * | 1998-12-25 | 2000-07-14 | Hitachi Constr Mach Co Ltd | Hydraulic motor testing device |
| JP2004028263A (en) * | 2002-06-27 | 2004-01-29 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | Hydraulic circuit for construction machinery |
| CN202075110U (en) * | 2011-04-19 | 2011-12-14 | 广西职业技术学院 | Testing device for opening pressure of filler cap of radiator |
| CN202631241U (en) * | 2012-06-13 | 2012-12-26 | 常州兰翔机械有限责任公司 | Nozzle flow testing device |
| CN104421248A (en) * | 2013-08-31 | 2015-03-18 | 西安志越机电科技有限公司 | Hydraulic system for high-flow hydraulic control one-way valve test bench |
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| CN204422227U (en) * | 2014-12-23 | 2015-06-24 | 胡敏 | A kind of Aviation Fuel nozzle characteristic testing platform |
| CN204694467U (en) * | 2015-06-25 | 2015-10-07 | 鞍钢建设剥岩工程有限公司 | Unit injector Detecting data |
| CN105403406A (en) * | 2015-12-11 | 2016-03-16 | 北京金风科创风电设备有限公司 | Toothed belt fatigue test device |
| CN206330737U (en) * | 2016-12-26 | 2017-07-14 | 安徽杰曼汽车零部件有限公司 | A kind of unidirectional valve opening pressure quick detection testing stand |
-
2016
- 2016-12-26 CN CN201611218062.5A patent/CN107063652A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000193563A (en) * | 1998-12-25 | 2000-07-14 | Hitachi Constr Mach Co Ltd | Hydraulic motor testing device |
| JP2004028263A (en) * | 2002-06-27 | 2004-01-29 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | Hydraulic circuit for construction machinery |
| CN202075110U (en) * | 2011-04-19 | 2011-12-14 | 广西职业技术学院 | Testing device for opening pressure of filler cap of radiator |
| CN202631241U (en) * | 2012-06-13 | 2012-12-26 | 常州兰翔机械有限责任公司 | Nozzle flow testing device |
| CN104421248A (en) * | 2013-08-31 | 2015-03-18 | 西安志越机电科技有限公司 | Hydraulic system for high-flow hydraulic control one-way valve test bench |
| CN104454748A (en) * | 2014-12-05 | 2015-03-25 | 宁波恒力液压股份有限公司 | Reliable comprehensive energy-saving hydraulic test device for gear pumps, overflow valves and one-way valves |
| CN204422227U (en) * | 2014-12-23 | 2015-06-24 | 胡敏 | A kind of Aviation Fuel nozzle characteristic testing platform |
| CN204694467U (en) * | 2015-06-25 | 2015-10-07 | 鞍钢建设剥岩工程有限公司 | Unit injector Detecting data |
| CN105403406A (en) * | 2015-12-11 | 2016-03-16 | 北京金风科创风电设备有限公司 | Toothed belt fatigue test device |
| CN206330737U (en) * | 2016-12-26 | 2017-07-14 | 安徽杰曼汽车零部件有限公司 | A kind of unidirectional valve opening pressure quick detection testing stand |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254167A (en) * | 2017-12-29 | 2018-07-06 | 广州市上腾电子科技有限公司 | A kind of discharge coefficient test gas circuit and its application method |
| CN108051198A (en) * | 2018-01-16 | 2018-05-18 | 重庆安木科技有限公司 | A kind of detecting system of piston cooling nozzle |
| CN108051198B (en) * | 2018-01-16 | 2024-04-26 | 重庆安木科技有限公司 | Detection system of piston cooling nozzle |
| CN109186879A (en) * | 2018-08-21 | 2019-01-11 | 南京越博动力系统股份有限公司 | A kind of gearbox seal test table and its test method |
| CN112985801A (en) * | 2021-02-22 | 2021-06-18 | 一汽解放汽车有限公司 | System and method for testing opening pressure and sealing performance of check valve of fuel pump |
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