CN101915666A - Test method and system for reliability of swing mechanism based on power recovery technology - Google Patents
Test method and system for reliability of swing mechanism based on power recovery technology Download PDFInfo
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- CN101915666A CN101915666A CN 201010224361 CN201010224361A CN101915666A CN 101915666 A CN101915666 A CN 101915666A CN 201010224361 CN201010224361 CN 201010224361 CN 201010224361 A CN201010224361 A CN 201010224361A CN 101915666 A CN101915666 A CN 101915666A
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- slew gear
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Abstract
The invention discloses a test method and system for the reliability of a swing mechanism based on a power recovery technology, belonging to the test method and system for detecting the reliability of the swing mechanism. The test system for the reliability of the swing mechanism is utilized to simultaneously detect two swing mechanisms, wherein one serves as an active swing mechanism, and the other one serves as a loading swing mechanism; in the test process, the high-pressure loading cavity of the loading swing mechanism is connected with the oil inlet cavity of the swing mechanism to be tested via a bridge-type loop and a pipeline all the while for recovering the power loss of the loading test loop of the loading swing mechanism because of throttle valve loading at present. The invention has the advantages that the invention can satisfy the test requirements of different types of swing mechanisms; the displacement of each variable displacement pump is adjusted to continuously adjust the oil make-up flow of the active swing mechanism and the loading swing mechanism; a proportional relief valve is adjusted to adjust the pressure value to continuously adjust the test pressure value and the oil make-up pressure value; and the loading hydraulic loop of the loading swing mechanism is free from throttle loss so as to lower the power consumption of the reliability test.
Description
Technical field
The present invention relates to a kind of test method and system that is used for checking reliability of swing mechanism, particularly a kind of reliability of swing mechanism test method and system based on power recovery technology.
Background technology
The slewing equipment that slew gear and pivoting support are formed is an important ingredient in the engineering machinery such as hydraulic excavator, truck-mounted crane, crawler crane.Slew gear is made up of rotary motor, planet-gear speed reducer and Thrustor, and whether its reliable in quality directly has influence on the serviceability of slewing equipment, for guaranteeing the slew gear quality, need carry out fail-test to it.Reliability of swing mechanism test is adopted slew gear to load frock and is finished, and loads frock and detects two slew gears simultaneously, and one as tested slewing mechanism, and another part is as loading slew gear.
The active slew gear of reliability of swing mechanism test loop drives by reliability of swing mechanism test frock and loads the slew gear rotation at present, slew gear loads by throttling valve, 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 chilled water to keep the thermal equilibrium of whole hydraulic system again.Because the reliability of swing mechanism test period is grown, is had high input, as adopts above-mentioned test method power consumption big.
Summary of the invention
The objective of the invention is to provide a kind of: based on the reliability of swing mechanism test method and the system of power recovery technology.Reclaim and load the power loss that is caused owing to the throttling valve loading in the slew gear load test loop at present, reduce the power consumption of reliability of swing mechanism test.
The object of the present invention is achieved like this: the experimental liquid pressing system comprises first motor, first variable output pump, the first flow meter, the 3-position 4-way solenoid directional control valve, the active slew gear, reliability of swing mechanism test frock, load slew gear, first retaining valve, second retaining valve, the 3rd retaining valve, the 4th retaining valve, first electricity liquid ratio relief valve, second electricity liquid ratio relief valve, second flowmeter, second variable output pump, second motor and electro-hydraulic proportional reducing valve, first motor is connected with first variable output pump, the oil absorbing end connected tank of first variable output pump, oil outlet end is connected by the Thrustor of electro-hydraulic proportional reducing valve with active slew gear and loading slew gear, and the slew gear rotary motor leaks fluid and takes back to fuel tank; The oil outlet end of first variable output pump is connected with the end hydraulic fluid port of 3-position 4-way solenoid directional control valve with the active slew gear by the first flow meter, initiatively the other end hydraulic fluid port of slew gear is connected with fuel tank by the 3-position 4-way solenoid directional control valve, the oil outlet end of first variable output 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 output pump, the inlet port connected tank of second variable output pump, the oil-out of second variable output pump is by second flowmeter, the second electricity liquid ratio relief valve connected tank, the oil-out of second variable output pump is connected with second retaining valve with first retaining valve by second flowmeter simultaneously, one end of the 3rd retaining valve and the 4th retaining valve is connected with first electricity liquid ratio relief valve simultaneously, second retaining valve is connected with the 3rd retaining valve, first retaining valve is connected with the 4th retaining valve, an end hydraulic fluid port that loads slew gear is connected between second retaining valve and the 3rd retaining valve, and the other end hydraulic fluid port that loads slew gear is connected between first retaining valve and the 4th retaining valve.
Test method of the present invention: first variable output pump is initiatively slew gear repairing, and second variable output pump is for loading the slew gear repairing; Electro-hydraulic proportional reducing valve provides guide's hydraulic oil to open initiatively slew gear and loading slew gear Thrustor, utilizes reliability of swing mechanism test frock, and the active slew gear drives the loading slew gear and rotates, and two slew gears are tested simultaneously; First retaining valve, second retaining valve, the 3rd retaining valve, the 4th retaining valve constitute bridge type return, are used for doing gyration to loading slew gear under the driving of active slew gear; The three position four-way directional control valve commutation is to position, a left side, and initiatively slew gear is rotated in the forward; The LOADED CAVITY that loads slew gear links to each other with active slew gear oil suction chamber with three position four-way directional control valve by the 3rd retaining valve; Second variable output pump passes through first retaining valve to loading the repairing of slew gear oil suction chamber; The three position four-way directional control valve commutation is to right position, initiatively slew gear reverse rotation; Loading the slew gear LOADED CAVITY links to each other with active slew gear oil suction chamber with three position four-way directional control valve by the 4th retaining valve; Second variable output pump passes through second retaining valve to loading the repairing of slew gear oil suction chamber;
First electricity liquid ratio relief valve is set the slew gear test pressure, and as the safety valve of first variable output pump, second electricity liquid ratio relief valve is set and loaded the slew gear oil compensation pressure simultaneously.
Beneficial effect owing to adopted such scheme, at different size slew gear test pressure and rotating speed requirement, by regulating the first variable output pump discharge capacity, can replenish initiatively slew gear leakage flow; By regulating the second variable output pump discharge capacity, can adjust and load slew gear repairing flow.First electricity liquid ratio relief valve is used for regulating initiatively slew gear, loading slew gear test pressure.Second electricity liquid ratio relief valve is used for regulating loading slew gear oil compensation pressure value.Electro-hydraulic proportional reducing valve is parallel to the hydraulic pump outlet and is used for providing guide's hydraulic oil to open Thrustor to active slew gear, loading slew gear.Initiatively slew gear, loading slew gear leak oil and flow back to fuel tank.First retaining valve, second retaining valve, the 3rd retaining valve, the 4th retaining valve constitute bridge type return, are used to load the gyration of slew gear under the active slew gear drives.The three position four-way directional control valve commutation is to position, a left side, and initiatively slew gear is rotated in the forward; Loading the slew gear LOADED CAVITY links to each other with active slew gear oil suction chamber with three position four-way directional control valve by the 3rd retaining valve.Second variable output pump passes through first retaining valve to loading the repairing of slew gear oil suction chamber.The three position four-way directional control valve commutation is to right position, initiatively slew gear reverse rotation; Loading the slew gear LOADED CAVITY links to each other with active slew gear oil suction chamber with three position four-way directional control valve by the 4th retaining valve.Second variable output pump passes through second retaining valve to loading the repairing of slew gear oil suction chamber.
The reliability of swing mechanism test is finished by Controlled by Programmable Controller.By adopting power recovery technology, because throttling valve loads the power loss that is caused, reduced the power consumption that reliability of swing mechanism is tested in the present loading of the recovery slew gear load test loop, reached purpose of the present invention.
Advantage: can satisfy the testing requirements of various different model slew gears, can regulate initiatively slew gear and loading slew gear repairing flow continuously by regulating each variable output pump discharge capacity, can regulate test pressure value and oil compensation pressure value continuously by regulating proportional pressure control valve set pressure value, regulate proportional pressure-reducing valve set pressure value and can regulate the pilot pressure value continuously.
Utilize reliability of swing mechanism test frock, two slew gears are tested simultaneously, a conduct active slew gear, and another part is as loading slew gear.Loading slew gear high pressure LOADED CAVITY in the process of the test communicates with the tested slewing mechanism oil suction chamber with pipeline all the time by bridge type return, reclaim and load at present in the slew gear load test loop because throttling valve loads the power loss that is caused, loading slew gear loading hydraulic circuit does not have restriction loss, has reduced the fail-test power consumption.
Description of drawings
Fig. 1 is a reliability of swing mechanism experimental liquid pressing system structural drawing of the present invention.
Among the figure: 1, first motor; 2, first variable output pump; 3, first flow meter; 4,3-position 4-way solenoid directional control valve; 5, active slew gear; 6, reliability of swing mechanism test frock; 7, load slew gear; 8, first retaining valve; 9, second retaining valve; 10, the 3rd retaining valve; 11, the 4th retaining valve; 12, first electricity liquid ratio relief valve; 13, second electricity liquid ratio relief valve; 14, second flowmeter; 15, second variable output pump; 16, second motor; 17, electro-hydraulic proportional reducing valve.
Embodiment
Embodiment 1: the experimental liquid pressing system comprises first motor 1, first variable output pump 2, first flow meter 3,3-position 4-way solenoid directional control valve 4, active slew gear 5, reliability of swing mechanism test frock 6, load slew gear 7, first retaining valve 8, second retaining valve 9, the 3rd retaining valve 10, the 4th retaining valve 11, first electricity liquid ratio relief valve 12, second electricity liquid ratio relief valve 13, second flowmeter 14, second variable output pump 15, second motor 16 and electro-hydraulic proportional reducing valve 17, first motor is connected with first variable output pump, the oil absorbing end connected tank of first variable output pump, oil outlet end is connected by the Thrustor of electro-hydraulic proportional reducing valve with active slew gear and loading slew gear, and the slew gear rotary motor leaks fluid and takes back to fuel tank; The oil outlet end of first variable output pump is connected with the end hydraulic fluid port of 3-position 4-way solenoid directional control valve with the active slew gear by the first flow meter, initiatively the other end hydraulic fluid port of slew gear is connected with fuel tank by the 3-position 4-way solenoid directional control valve, the oil outlet end of first variable output 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 output pump, the inlet port connected tank of second variable output pump, the oil-out of second variable output pump is by second flowmeter, the second electricity liquid ratio relief valve connected tank, the oil-out of second variable output pump is connected with second retaining valve with first retaining valve by second flowmeter simultaneously, one end of the 3rd retaining valve and the 4th retaining valve is connected with first electricity liquid ratio relief valve simultaneously, second retaining valve is connected with the 3rd retaining valve, first retaining valve is connected with the 4th retaining valve, an end hydraulic fluid port that loads slew gear is connected between second retaining valve and the 3rd retaining valve, and the other end hydraulic fluid port that loads slew gear is connected between first retaining valve and the 4th retaining valve.
Test method of the present invention: first variable output pump 2 is initiatively slew gear 5 repairings, and second variable output pump 15 is for loading slew gear 7 repairings; Electro-hydraulic proportional reducing valve 17 provides guide's hydraulic oil to open initiatively slew gear 5 and loading slew gear 7 Thrustors, utilizes reliability of swing mechanism test frock 6, and active slew gear 5 drives loading slew gear 7 and rotates, and two slew gears are tested simultaneously.First retaining valve 8, second retaining valve 9, the 3rd retaining valve 10, the 4th retaining valve 11 constitute bridge type return, are used for doing gyration to loading slew gear 7 under the driving of active slew gear 5; Three position four-way directional control valve 4 commutations are to position, a left side, and initiatively slew gear 5 is rotated in the forward; The LOADED CAVITY that loads slew gear 7 links to each other with active slew gear 5 oil suction chambers with three position four-way directional control valve 4 by the 3rd retaining valve 10; Second variable output pump 15 passes through first retaining valve 8 to loading slew gear 7 oil suction chamber repairings; Three position four-way directional control valve 4 commutations are to right position, initiatively slew gear 5 reverse rotations; Loading slew gear 7 LOADED CAVITY links to each other with active slew gear 5 oil suction chambers with three position four-way directional control valve 4 by the 4th retaining valve 11; Second variable output pump 15 passes through second retaining valve 9 to loading slew gear 7 oil suction chamber repairings;
First electricity liquid ratio relief valve 12 is set the slew gear test pressure, and as the safety valve of first variable output pump 2, second electricity liquid ratio relief valve 13 is set and loaded the slew gear oil compensation pressure simultaneously.
Claims (2)
1. reliability of swing mechanism test method based on power recovery technology is characterized in that: test method: first variable output pump is initiatively slew gear repairing, and second variable output pump is for loading the slew gear repairing; Electro-hydraulic proportional reducing valve provides guide's hydraulic oil to open initiatively slew gear and loading slew gear Thrustor, utilizes reliability of swing mechanism test frock, and the active slew gear drives the loading slew gear and rotates, and two slew gears are tested simultaneously; First retaining valve, second retaining valve, the 3rd retaining valve, the 4th retaining valve constitute bridge type return, are used for doing gyration to loading slew gear under the driving of active slew gear; Three position four-way directional control valve 4 commutations are to position, a left side, and initiatively slew gear is rotated in the forward; The LOADED CAVITY that loads slew gear links to each other with active slew gear oil suction chamber with three position four-way directional control valve by the 3rd retaining valve; Second variable output pump passes through first retaining valve to loading the repairing of slew gear oil suction chamber; The three position four-way directional control valve commutation is to right position, initiatively slew gear reverse rotation; Loading the slew gear LOADED CAVITY links to each other with active slew gear oil suction chamber with three position four-way directional control valve by the 4th retaining valve; Second variable output pump passes through second retaining valve to loading the repairing of slew gear oil suction chamber;
First electricity liquid ratio relief valve is set the slew gear test pressure, and as the safety valve of first variable output pump, second electricity liquid ratio relief valve is set and loaded the slew gear oil compensation pressure simultaneously.
2. system based on the reliability of swing mechanism test method of power recovery technology, it is characterized in that: the experimental liquid pressing system comprises first motor, first variable output pump, the first flow meter, the 3-position 4-way solenoid directional control valve, the active slew gear, reliability of swing mechanism test frock, load slew gear, first retaining valve, second retaining valve, the 3rd retaining valve, the 4th retaining valve, first electricity liquid ratio relief valve, second electricity liquid ratio relief valve, second flowmeter, second variable output pump, second motor and electro-hydraulic proportional reducing valve, first motor is connected with first variable output pump, the oil absorbing end connected tank of first variable output pump, oil outlet end is connected by the Thrustor of electro-hydraulic proportional reducing valve with active slew gear and loading slew gear, and the slew gear rotary motor leaks fluid and takes back to fuel tank; The oil outlet end of first variable output pump is connected with the end hydraulic fluid port of 3-position 4-way solenoid directional control valve with the active slew gear by the first flow meter, initiatively the other end hydraulic fluid port of slew gear is connected with fuel tank by the 3-position 4-way solenoid directional control valve, the oil outlet end of first variable output 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 output pump, the inlet port connected tank of second variable output pump, the oil-out of second variable output pump is by second flowmeter, the second electricity liquid ratio relief valve connected tank, the oil-out of second variable output pump is connected with second retaining valve with first retaining valve by second flowmeter simultaneously, one end of the 3rd retaining valve and the 4th retaining valve is connected with first electricity liquid ratio relief valve simultaneously, second retaining valve is connected with the 3rd retaining valve, first retaining valve is connected with the 4th retaining valve, an end hydraulic fluid port that loads slew gear is connected between second retaining valve and the 3rd retaining valve, and the other end hydraulic fluid port that loads slew gear is connected between first retaining valve and the 4th retaining valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010224361 CN101915666A (en) | 2010-07-07 | 2010-07-07 | Test method and system for reliability of swing mechanism based on power recovery technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010224361 CN101915666A (en) | 2010-07-07 | 2010-07-07 | Test method and system for reliability of swing mechanism based on power recovery technology |
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| CN101915666A true CN101915666A (en) | 2010-12-15 |
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| CN 201010224361 Pending CN101915666A (en) | 2010-07-07 | 2010-07-07 | Test method and system for reliability of swing mechanism based on power recovery technology |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937125A (en) * | 2012-11-06 | 2013-02-20 | 三一重工股份有限公司 | Testing system of hydraulic motor |
| CN103511238A (en) * | 2013-10-16 | 2014-01-15 | 徐州科源液压股份有限公司 | Multiplex gear pump energy-saving testing bench |
| CN103727081A (en) * | 2013-12-12 | 2014-04-16 | 西安航空动力控制科技有限公司 | Bridge type oil circuit manifold block |
| CN105092240A (en) * | 2015-08-07 | 2015-11-25 | 合肥工业大学 | Magneto-rheological speed regulation clutch comprehensive performance dynamic test platform and method |
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| SU1654709A1 (en) * | 1988-12-22 | 1991-06-07 | Специальное Конструкторско-Технологическое Бюро По Механизации Монтажных Работ И Запасным Частям "Стройдормаш" | Hydraulic drive of stand for testing rotary table of tower crane |
| CN1400455A (en) * | 2002-09-19 | 2003-03-05 | 北京航空航天大学 | Hydraulic energy source equipment |
| JP3417322B2 (en) * | 1998-12-25 | 2003-06-16 | 日立建機株式会社 | Hydraulic motor testing equipment |
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2010
- 2010-07-07 CN CN 201010224361 patent/CN101915666A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1654709A1 (en) * | 1988-12-22 | 1991-06-07 | Специальное Конструкторско-Технологическое Бюро По Механизации Монтажных Работ И Запасным Частям "Стройдормаш" | Hydraulic drive of stand for testing rotary table of tower crane |
| JP3417322B2 (en) * | 1998-12-25 | 2003-06-16 | 日立建機株式会社 | Hydraulic motor testing equipment |
| CN1400455A (en) * | 2002-09-19 | 2003-03-05 | 北京航空航天大学 | Hydraulic energy source equipment |
Non-Patent Citations (1)
| Title |
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| 《液压与气动》 19850331 徐文哲 关于齿轮式液压马达可靠性试验 第31-34页 1-2 , 第1期 2 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937125A (en) * | 2012-11-06 | 2013-02-20 | 三一重工股份有限公司 | Testing system of hydraulic motor |
| CN102937125B (en) * | 2012-11-06 | 2016-04-06 | 三一汽车制造有限公司 | Oil hydraulic motor pilot system |
| CN103511238A (en) * | 2013-10-16 | 2014-01-15 | 徐州科源液压股份有限公司 | Multiplex gear pump energy-saving testing bench |
| CN103511238B (en) * | 2013-10-16 | 2015-10-28 | 徐州科源液压股份有限公司 | Multi-gear pump energy conservation test platform |
| CN103727081A (en) * | 2013-12-12 | 2014-04-16 | 西安航空动力控制科技有限公司 | Bridge type oil circuit manifold block |
| CN103727081B (en) * | 2013-12-12 | 2016-04-13 | 西安航空动力控制科技有限公司 | Bridge type oil circuit manifold block |
| CN105092240A (en) * | 2015-08-07 | 2015-11-25 | 合肥工业大学 | Magneto-rheological speed regulation clutch comprehensive performance dynamic test platform and method |
| CN105092240B (en) * | 2015-08-07 | 2019-08-23 | 合肥工业大学 | A kind of magnetorheological variable-speed clutch comprehensive performance dynamic test platform and method |
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Open date: 20101215 |