CN101881289A - Hydraulic cylinder reliability test method and device based on power recovery technology - Google Patents
Hydraulic cylinder reliability test method and device based on power recovery technology Download PDFInfo
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- CN101881289A CN101881289A CN 201010224363 CN201010224363A CN101881289A CN 101881289 A CN101881289 A CN 101881289A CN 201010224363 CN201010224363 CN 201010224363 CN 201010224363 A CN201010224363 A CN 201010224363A CN 101881289 A CN101881289 A CN 101881289A
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Abstract
The invention relates to hydraulic cylinder reliability test method and device based on a power recovery technology, which belong to a test method for detecting hydraulic cylinder reliability. A first electromotor of a testing hydraulic system is connected with a first variable pump; the oil outlet end of the first variable pump is connected with an oil port at one end of a tested hydraulic cylinder through a first flowmeter and a three-position four-way electromagnetic directional valve, and the oil port at the other end of the tested hydraulic cylinder is connected with an oil box through the three-position four-way electromagnetic directional valve; a second electromotor is connected with a second variable pump, the oil outlet of the second variable pump is connected with the oil box through a second flowmeter and a second electro-hydraulic proportional spillover valve, the oil outlet of the second variable pump is simultaneously connected with a first one-way valve and a third one-way valve through the second flowmeter, the first one-way valve is connected with a second one-way valve, and the third one-way valve is connected with a fourth one-way valve. The invention has the advantages that the test requirements of various hydraulic cylinder with different specifications are satisfied, and the oil compensation quantities of the tested hydraulic cylinder and a loading hydraulic cylinder are continuously regulated; the testing pressure value and the oil compensation pressure value of the hydraulic cylinder are continuously regulated; and the electrical energy consumption of a test is reduced.
Description
Technical field
The present invention relates to a kind of test method of checking hydraulic cylinder reliability, particularly a kind of hydraulic cylinder reliability test method and device based on power recovery technology.
Background technique
Oil hydraulic cylinder uses extensively as the important executive component of hydraulic system, and whether its reliable in quality directly has influence on the hydraulic work system performance, for guaranteeing the oil hydraulic cylinder quality, need carry out reliability trial to it.Hydraulic cylinder reliability test adopts oil hydraulic cylinder test frock to finish, and the test frock detects two oil hydraulic cylinders simultaneously, and one as tested oil hydraulic cylinder, and another part is as loading hydraulic cylinder.Generally carry out with reference to the oil hydraulic circuit that GB/T 15622-2005 recommends the hydraulic cylinder reliability test loop, present loading hydraulic cylinder adopts throttle valve to load, all the test merit all is converted into heat-energy losses, and heat-energy losses further causes the system oil temperature rise, needs cooling system and a large amount of cooling water to keep the thermal equilibrium of whole hydraulic system again.Because the hydraulic cylinder reliability test period is grown, is had high input, and adopts above-mentioned test method power consumption big.
Summary of the invention
The objective of the invention is to provide a kind of hydraulic cylinder reliability test method and device, solve hydraulic cylinder reliability test period length, have high input the problem that the test method power consumption is big based on power recovery technology.
The object of the present invention is achieved like this: the experimental liquid pressing system comprises first motor, first variable displacement pump, first flow meter, 3-position 4-way solenoid directional control valve, tested oil hydraulic cylinder, loading hydraulic cylinder, first position limit switch, hydraulic cylinder reliability test frock, first one-way valve, second one-way valve, the 3rd one-way valve, the 4th one-way valve, first electricity liquid ratio relief valve, second electricity liquid ratio relief valve, second motor, second variable displacement pump, second flowmeter, second position limit switch, first motor is connected with first variable displacement pump, the oil absorbing end connected tank of first variable displacement pump; The oil outlet end of first variable displacement pump is connected with an end hydraulic fluid port of tested oil hydraulic cylinder with the 3-position 4-way solenoid directional control valve by the first flow meter, tested oil hydraulic cylinder the other end hydraulic fluid port is connected with fuel tank by the 3-position 4-way solenoid directional control valve, the oil outlet end of first variable displacement pump directly is connected with first electricity liquid ratio relief valve by the first flow meter simultaneously, and links to each other with fuel tank by first electricity liquid ratio relief valve; Second motor is connected with second variable displacement pump, the inlet port connected tank of second variable displacement pump, the oil outlet of second variable displacement pump is by second flowmeter, the second electricity liquid ratio relief valve connected tank, the oil outlet of second variable displacement pump is connected with the 3rd one-way valve with first one-way valve by second flowmeter simultaneously, one end of second one-way valve and the 4th one-way valve is connected with first electricity liquid ratio relief valve simultaneously, first one-way valve is connected with second one-way valve, the 3rd one-way valve is connected with the 4th one-way valve, one end hydraulic fluid port of loading hydraulic cylinder is connected between first one-way valve and second one-way valve, and the other end hydraulic fluid port of loading hydraulic cylinder is connected between the 3rd one-way valve and the 4th one-way valve.
Test method of the present invention: first variable displacement pump is tested oil hydraulic cylinder repairing, and second variable displacement pump is the loading hydraulic cylinder repairing; Utilize hydraulic cylinder reliability test frock, active Driven by Hydraulic Cylinder loading hydraulic cylinder, two oil hydraulic cylinders load test simultaneously mutually; First one-way valve, second one-way valve, the 3rd one-way valve, the 4th one-way valve constitute bridge type return, are used for loading hydraulic cylinder flexible under the driving of tested oil hydraulic cylinder; The three position four-way directional control valve commutation is position, a left side extremely, the chamber oil-feed of tested hydraulic cylinder piston, and piston rod stretches out; The piston cavity of loading hydraulic cylinder links to each other with tested hydraulic cylinder piston chamber with three position four-way directional control valve by second one-way valve; To the repairing of loading hydraulic cylinder rod end chamber, withdraw by piston rod by the 3rd one-way valve for second variable displacement pump; The extremely right position of three position four-way directional control valve commutation, the chamber oil-feed of tested hydraulic cylinder piston rod, piston rod withdrawal; The loading hydraulic cylinder rod end chamber links to each other with tested hydraulic cylinder piston rod chamber with three position four-way directional control valve by the 4th one-way valve; To the repairing of loading hydraulic cylinder piston cavity, piston rod stretches out second variable displacement pump by first one-way valve; First electricity liquid ratio relief valve is set the oil hydraulic cylinder test pressure, and as the safety valve of first variable displacement pump, second electricity liquid ratio relief valve is set the loading hydraulic cylinder oil compensation pressure simultaneously.
Beneficial effect owing to adopted such scheme, at different size oil hydraulic cylinder test pressure and stretching speed requirement, by regulating the first variable displacement pump discharge capacity, replenishes tested oil hydraulic cylinder leakage flow; By regulating the second variable displacement pump discharge capacity, regulate loading hydraulic cylinder repairing flow.First electricity liquid ratio relief valve is used to regulate tested oil hydraulic cylinder, loading hydraulic cylinder test pressure.Second electricity liquid ratio relief valve is used to regulate loading hydraulic cylinder oil compensation pressure value.First one-way valve, second one-way valve, the 3rd one-way valve, the 4th one-way valve constitute bridge type return, are used for the to-and-fro motion of loading hydraulic cylinder under tested oil hydraulic cylinder 5 drives.First position limit switch, second position limit switch detect hydraulic cylinder travel.Tested oil hydraulic cylinder is withdrawn fully, and first position limit switch is connected, electromagnet YA1 energising, and the three position four-way directional control valve commutation is position, a left side extremely, the chamber oil-feed of tested hydraulic cylinder piston, the rod end chamber oil return, piston rod stretches out; The loading hydraulic cylinder piston cavity links to each other with tested hydraulic cylinder piston chamber with three position four-way directional control valve by second one-way valve.Second oil hydraulic pump passes through the 3rd one-way valve to the repairing of loading hydraulic cylinder rod end chamber.When tested oil hydraulic cylinder stretches out fully, second position limit switch is connected, and electromagnet YA2 energising, three position four-way directional control valve commutation be to right position, the oil-feed of tested oil hydraulic cylinder rod chamber, rodless cavity oil return, piston rod withdrawal; The loading hydraulic cylinder rod chamber links to each other with active oil hydraulic cylinder rod chamber with three position four-way directional control valve by the 4th one-way valve.Second oil hydraulic pump passes through first one-way valve to the repairing of loading hydraulic cylinder rodless cavity.
The reliability of swing mechanism test is finished by Controlled by Programmable Controller.
Solved hydraulic cylinder reliability test period length, had high input, the problem that the test method power consumption is big has reached purpose of the present invention.
Advantage: the present invention can satisfy the test requirements document of various different size oil hydraulic cylinders, can regulate tested oil hydraulic cylinder and loading hydraulic cylinder repairing flow continuously by regulating each variable displacement pump discharge capacity; By regulating proportional pressure control valve set pressure value regulator solution cylinder pressure test pressure value and oil compensation pressure value continuously; By adopting power recovery technology, reduced the power consumption of hydraulic cylinder reliability test.
Description of drawings
Fig. 1 is a hydraulic cylinder reliability test hydraulic system principle figure of the present invention:
Among the figure: 1, first motor; 2, first variable displacement pump; 3, first flow meter; 4,3-position 4-way solenoid directional control valve; 5, active oil hydraulic cylinder; 6, loading hydraulic cylinder; 7, first position limit switch; 8, hydraulic cylinder reliability test frock; 9, first one-way valve; 10, second one-way valve; 11, the 3rd one-way valve; 12, the 4th one-way valve; 13, electricity liquid ratio relief valve; 14, electricity liquid ratio relief valve; 15, second motor; 16, second variable displacement pump; 17, second flowmeter; 18, second position limit switch.
Embodiment
Embodiment 1: the experimental liquid pressing system comprises first motor 1, first variable displacement pump 2, first flow meter 3,3-position 4-way solenoid directional control valve 4, tested oil hydraulic cylinder 5, loading hydraulic cylinder 6, first position limit switch 7, hydraulic cylinder reliability test frock 8, first one-way valve 9, second one-way valve 10, the 3rd one-way valve 11, the 4th one-way valve 12, first electricity liquid ratio relief valve 13, second electricity liquid ratio relief valve 14, second motor 15, second variable displacement pump 16, second flowmeter 17 and second position limit switch 18, first motor 1 is connected with first variable displacement pump 2, the oil absorbing end connected tank of first variable displacement pump 2; The oil outlet end of first variable displacement pump 2 is connected with an end hydraulic fluid port of tested oil hydraulic cylinder 5 with 3-position 4-way solenoid directional control valve 4 by first flow meter 3, tested oil hydraulic cylinder 5 the other end hydraulic fluid ports are connected with fuel tank by 3-position 4-way solenoid directional control valve 4, the oil outlet end of first variable displacement pump 2 directly is connected with first electricity liquid ratio relief valve 13 by first flow meter 3 simultaneously, and links to each other with fuel tank by first electricity liquid ratio relief valve 13; Second motor 15 is connected with second variable displacement pump 16, the inlet port connected tank of second variable displacement pump 16, the oil outlet of second variable displacement pump 16 is by second flowmeter 17, second electricity liquid ratio relief valve, 14 connected tanks, the oil outlet of second variable displacement pump 16 is connected with the 3rd one-way valve 11 with first one-way valve 9 by second flowmeter 17 simultaneously, one end of second one-way valve 10 and the 4th one-way valve 12 is connected with first electricity liquid ratio relief valve 13 simultaneously, first one-way valve 9 is connected with second one-way valve 10, the 3rd one-way valve 11 is connected with the 4th one-way valve 12, one end hydraulic fluid port of loading hydraulic cylinder 6 is connected between first one-way valve 9 and second one-way valve 10, and the other end hydraulic fluid port of loading hydraulic cylinder 6 is connected between the 3rd one-way valve 11 and the 4th one-way valve 12.
Test method of the present invention: first variable displacement pump 2 is tested oil hydraulic cylinder 5 repairings, and second variable displacement pump 16 is loading hydraulic cylinder 6 repairings; Utilize hydraulic cylinder reliability test frock 8, initiatively oil hydraulic cylinder 5 drives 6, two oil hydraulic cylinders of loading hydraulic cylinder and loads test simultaneously mutually.First one-way valve 9, second one-way valve 10, the 3rd one-way valve 11, the 4th one-way valve 12 constitute bridge type return, are used for loading hydraulic cylinder 6 flexible under the driving of tested oil hydraulic cylinder 5.Three position four-way directional control valve 4 commutations are position, a left side extremely, tested oil hydraulic cylinder 5 piston cavity oil-feeds, and piston rod stretches out; The piston cavity of loading hydraulic cylinder 6 links to each other with tested oil hydraulic cylinder 5 piston cavity with three position four-way directional control valve 4 by second one-way valve 10; To loading hydraulic cylinder 6 rod end chamber repairings, withdraw by piston rod by the 3rd one-way valve 11 for second variable displacement pump 16; The extremely right position of three position four-way directional control valve 4 commutations, tested oil hydraulic cylinder 5 rod end chamber oil-feeds, piston rod withdrawal; Loading hydraulic cylinder 6 rod end chambers link to each other with tested oil hydraulic cylinder 5 rod end chambers with three position four-way directional control valve 4 by the 4th one-way valve 12; To loading hydraulic cylinder 6 piston cavity repairings, piston rod stretches out second variable displacement pump 16 by first one-way valve 9.First electricity liquid ratio relief valve 13 is set the oil hydraulic cylinder test pressure, and as the safety valve of first variable displacement pump 2, second electricity liquid ratio relief valve 14 is set the loading hydraulic cylinder oil compensation pressure simultaneously.
Claims (2)
1. hydraulic cylinder reliability test method based on power recovery technology is characterized in that: concrete test method: first variable displacement pump is tested oil hydraulic cylinder repairing, and second variable displacement pump is the loading hydraulic cylinder repairing; Utilize hydraulic cylinder reliability test frock, active Driven by Hydraulic Cylinder loading hydraulic cylinder, two oil hydraulic cylinders load test simultaneously mutually; First one-way valve, second one-way valve, the 3rd one-way valve, the 4th one-way valve constitute bridge type return, are used for loading hydraulic cylinder flexible under the driving of tested oil hydraulic cylinder; The three position four-way directional control valve commutation is position, a left side extremely, the chamber oil-feed of tested hydraulic cylinder piston, and piston rod stretches out; The piston cavity of loading hydraulic cylinder links to each other with tested hydraulic cylinder piston chamber with three position four-way directional control valve by second one-way valve; To the repairing of loading hydraulic cylinder rod end chamber, withdraw by piston rod by the 3rd one-way valve for second variable displacement pump; The extremely right position of three position four-way directional control valve commutation, the chamber oil-feed of tested hydraulic cylinder piston rod, piston rod withdrawal; The loading hydraulic cylinder rod end chamber links to each other with tested hydraulic cylinder piston rod chamber with three position four-way directional control valve by the 4th one-way valve; To the repairing of loading hydraulic cylinder piston cavity, piston rod stretches out second variable displacement pump by first one-way valve; First electricity liquid ratio relief valve is set the oil hydraulic cylinder test pressure, and as the safety valve of first variable displacement pump, second electricity liquid ratio relief valve is set the loading hydraulic cylinder oil compensation pressure simultaneously.
2. device based on the hydraulic cylinder reliability test method of power recovery technology, it is characterized in that: the test hydraulic system comprises first motor, first variable displacement pump, the first flow meter, the 3-position 4-way solenoid directional control valve, tested oil hydraulic cylinder, loading hydraulic cylinder, first position limit switch, hydraulic cylinder reliability test frock, first one-way valve, second one-way valve, the 3rd one-way valve, the 4th one-way valve, first electricity liquid ratio relief valve, second electricity liquid ratio relief valve, second motor, second variable displacement pump, second flowmeter, second position limit switch, first motor is connected with first variable displacement pump, the oil absorbing end connected tank of first variable displacement pump; The oil outlet end of first variable displacement pump is connected with an end hydraulic fluid port of tested oil hydraulic cylinder with the 3-position 4-way solenoid directional control valve by the first flow meter, tested oil hydraulic cylinder the other end hydraulic fluid port is connected with fuel tank by the 3-position 4-way solenoid directional control valve, the oil outlet end of first variable displacement pump directly is connected with first electricity liquid ratio relief valve by the first flow meter simultaneously, and links to each other with fuel tank by first electricity liquid ratio relief valve; Second motor is connected with second variable displacement pump, the inlet port connected tank of second variable displacement pump, the oil outlet of second variable displacement pump is by second flowmeter, the second electricity liquid ratio relief valve connected tank, the oil outlet of second variable displacement pump is connected with the 3rd one-way valve with first one-way valve by second flowmeter simultaneously, one end of second one-way valve and the 4th one-way valve, in time, be connected with first electricity liquid ratio relief valve, first one-way valve is connected with second one-way valve, the 3rd one-way valve is connected with the 4th one-way valve, one end hydraulic fluid port of loading hydraulic cylinder is connected between first one-way valve and second one-way valve, and the other end hydraulic fluid port of loading hydraulic cylinder is connected between the 3rd one-way valve and the 4th one-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010224363 CN101881289A (en) | 2010-07-07 | 2010-07-07 | Hydraulic cylinder reliability test method and device based on power recovery technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010224363 CN101881289A (en) | 2010-07-07 | 2010-07-07 | Hydraulic cylinder reliability test method and device based on power recovery technology |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979785A (en) * | 2012-12-01 | 2013-03-20 | 娄底光华机械设备制造有限公司 | Test platform for oil cylinder |
| CN103696998A (en) * | 2013-12-27 | 2014-04-02 | 南通爱慕希机械有限公司 | Load system of hydrostatic transmission device detecting platform |
| CN106743716A (en) * | 2017-03-10 | 2017-05-31 | 中建材(洛阳)节能科技有限公司 | A kind of stacking machine hydraulic cylinder apparatus for controlling of lifting and method |
| CN110878781A (en) * | 2019-11-22 | 2020-03-13 | 中铁高新工业股份有限公司 | Shield constructs quick-witted pump-motor combined test platform |
| CN112253576A (en) * | 2020-10-20 | 2021-01-22 | 徐州徐工液压件有限公司 | Universal reliability test device for hydraulic cylinder |
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| SU1511474A1 (en) * | 1987-01-04 | 1989-09-30 | Производственное Объединение "Красный Экскаватор" Им.60-Летия Ссср | Test rig for hydraulic cylinders |
| CN2262133Y (en) * | 1996-08-15 | 1997-09-10 | 机械工业部北京起重运输机械研究所 | test bed for hydraulic cylinder |
| CN201433884Y (en) * | 2009-07-07 | 2010-03-31 | 中国矿业大学 | Emulsion pump testing system |
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2010
- 2010-07-07 CN CN 201010224363 patent/CN101881289A/en active Pending
Patent Citations (3)
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| SU1511474A1 (en) * | 1987-01-04 | 1989-09-30 | Производственное Объединение "Красный Экскаватор" Им.60-Летия Ссср | Test rig for hydraulic cylinders |
| CN2262133Y (en) * | 1996-08-15 | 1997-09-10 | 机械工业部北京起重运输机械研究所 | test bed for hydraulic cylinder |
| CN201433884Y (en) * | 2009-07-07 | 2010-03-31 | 中国矿业大学 | Emulsion pump testing system |
Non-Patent Citations (2)
| Title |
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| 《机床与液压》 20081215 张立军等 液压缸试验台液压***的初步设计 第110-112页、附图2 1-2 第36卷, 第12期 * |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979785A (en) * | 2012-12-01 | 2013-03-20 | 娄底光华机械设备制造有限公司 | Test platform for oil cylinder |
| CN103696998A (en) * | 2013-12-27 | 2014-04-02 | 南通爱慕希机械有限公司 | Load system of hydrostatic transmission device detecting platform |
| CN103696998B (en) * | 2013-12-27 | 2015-12-02 | 南通爱慕希机械有限公司 | Hydrostatic transmission detection platform load system |
| CN106743716A (en) * | 2017-03-10 | 2017-05-31 | 中建材(洛阳)节能科技有限公司 | A kind of stacking machine hydraulic cylinder apparatus for controlling of lifting and method |
| CN110878781A (en) * | 2019-11-22 | 2020-03-13 | 中铁高新工业股份有限公司 | Shield constructs quick-witted pump-motor combined test platform |
| CN110878781B (en) * | 2019-11-22 | 2021-10-22 | 中铁高新工业股份有限公司 | Shield constructs quick-witted pump-motor combined test platform |
| CN112253576A (en) * | 2020-10-20 | 2021-01-22 | 徐州徐工液压件有限公司 | Universal reliability test device for hydraulic cylinder |
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Application publication date: 20101110 |