CN102680227A - Performance detection test stand for main valve of hydraulic excavator - Google Patents
Performance detection test stand for main valve of hydraulic excavator Download PDFInfo
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- CN102680227A CN102680227A CN2012101957923A CN201210195792A CN102680227A CN 102680227 A CN102680227 A CN 102680227A CN 2012101957923 A CN2012101957923 A CN 2012101957923A CN 201210195792 A CN201210195792 A CN 201210195792A CN 102680227 A CN102680227 A CN 102680227A
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Abstract
The invention discloses a performance detection test stand for a main valve of a hydraulic excavator, belonging to a hydraulic system detection device. The performance detection test stand comprises an excavator hydraulic simulation unit, an electrical control unit, a leakage detection unit and a circulating cooling unit. The performance detection test stand has the advantages that the performance of the main valve of the hydraulic excavator can be detected all around through controlling actions of various units in an oil path through a control device; centralized processing of data can be realized through the control device, which is convenient for outputting a detection result; the manual control and the program automatic control of the main valve to be detected are realized through switching a control lever and an electromagnetic proportional valve; and the main valve to be detected and the detection test stand can be quickly and conveniently connected through a quick coupling.
Description
Technical field
The present invention relates to a kind of hydraulic system pick-up unit, especially a kind of hydraulic excavator main valve Performance Detection testing table.
Background technology
Along with the development of capital construction, in engineering fields such as building, water conservancies, engineering machinery such as excavator begin to be widely used.The fundamental purpose of excavator is a digging material and transfer to the emptying point from the face of land, goes back to excavation site after the discharging again, repeats.The excavator that uses at present mostly is a hydraulic excavator, has construction maneuverability, efficient advantages of higher, thereby is widely used in the house and builds thing, occasions such as water conservancy.Excavator hydraulic system mainly is made up of main pump, main valve, topworks, hydraulic oil and auxiliary element; Wherein main valve is the core control element of excavator hydraulic system; Be responsible for the hydraulic oil of main pump output is distributed to each executive component on demand; Guarantee the smooth action of each topworks of excavator and the harmony of excavator composite move, so be crucial to the Performance Detection of main valve.Yet, owing to lack and can carry out many-sided device that detects, make excavator main valve Performance Detection be difficult to realize at present to excavator main valve performance.
Summary of the invention
To existing the problems referred to above in the present excavator main valve Performance Detection process, provide a kind of at present and be intended to realize excavator main valve performance is carried out many-sided hydraulic excavator main valve Performance Detection testing table that detects.
Concrete technical scheme is following:
A kind of hydraulic excavator main valve Performance Detection testing table wherein, comprises excavator hydraulic analog unit and ECU;
Said excavator hydraulic analog unit comprises:
Power source in order to the simulation digger engine;
One hydraulic pump, said hydraulic pump is connected with said power source;
The pressure flow control device, said hydraulic pump is connected with main valve to be measured through said pressure flow control device;
Be used to simulate the load simulating device of excavator hydraulic pressure execution unit;
In order to connect the pipeline of main valve to be measured, pressure flow control device, hydraulic pump and load simulating device;
Said ECU comprises:
A plurality of temperature sensors in order to the temperature of gathering said power source, said main valve to be measured, pressure flow control device, said hydraulic pump, said load simulating device and said pipeline;
A plurality of pressure transducers in order to the pressure of gathering said main valve to be measured, pressure flow control device, said hydraulic pump, said load simulating device and said pipeline;
A plurality of in order to gather the flow sensor of flow in said main valve to be measured, pressure flow control device, said hydraulic pump, said load simulating device and the said pipeline;
One control device; Said control device is connected respectively with a plurality of said temperature sensors, a plurality of said pressure transducer, a plurality of said flow sensor, said power source, said pressure flow control device, said hydraulic pump and said load simulating device, and said control device is in order to the flow signal of the pressure signal of the temperature signal that receives a plurality of said temperature sensor collections, a plurality of said pressure transducer collections and a plurality of said flow sensor collections and control the action of said power source, said hydraulic pump, said pressure flow control device and said load simulating device.
Above-mentioned hydraulic excavator main valve Performance Detection testing table wherein, also comprises leak detection unit, and said leak detection unit comprises:
Auxiliary power source reaches the auxiliary hydraulic pump in order to Leak Detection; Said auxiliary power source is connected with said auxiliary hydraulic pump and for said auxiliary hydraulic pump power is provided, and said control device is connected with said auxiliary power source and said auxiliary hydraulic pump and controls the action of said auxiliary power source and said auxiliary hydraulic pump;
In order to connect the auxiliary piping of said auxiliary hydraulic pump and said main valve to be measured;
In order to detect the Minor flow sensor of said auxiliary piping pressure; Said Minor flow sensor is connected with said control device.
Above-mentioned hydraulic excavator main valve Performance Detection testing table wherein, also comprises the circulation cooling unit; Said circulation cooling unit comprises:
Be connected in the heating radiator on the said pipeline;
One cooling device;
Said cooling device is connected through heat-conduction component with said heating radiator, and said cooling device is connected with said control device, and said control device is controlled said cooling device action.
Above-mentioned hydraulic excavator main valve Performance Detection testing table; Wherein, Comprise in order to operate the operating control of main valve to be measured; Said operating control comprises operating rod that is connected with the first rodding control section of said main valve to be measured and the electromagnetic proportional valve that is connected with the first rodding control section of said main valve to be measured; Said operating rod is in order to the said main valve events to be measured of manual control, and the control end of said electromagnetic proportional valve is connected with said control device, and said control device is handled said main valve events to be measured through controlling said electromagnetic proportional valve.
Above-mentioned hydraulic excavator main valve Performance Detection testing table; Wherein, Comprise in order to operate the operating control of main valve to be measured; Said operating control comprises operating rod that is connected with the first rodding control section of said main valve to be measured or the electromagnetic proportional valve that is connected with the first rodding control section of said main valve to be measured; Said operating rod is in order to the said main valve events to be measured of manual control, and the control end of said electromagnetic proportional valve is connected with said control device, and said control device is handled said main valve events through controlling said electromagnetic proportional valve.
Above-mentioned hydraulic excavator main valve Performance Detection testing table, wherein, said hydraulic pump is used pump for the 7.5t excavator.
Above-mentioned hydraulic excavator main valve Performance Detection testing table; Wherein, Comprise pressure discharge control parts; Said pressure discharge control parts are connected with said control device, the oil circuit pressure release that said pressure discharge control parts mainly are made up of said power source, said hydraulic pump, said pressure flow control device, said load simulating device and said main valve to be measured through said control device control.
Above-mentioned hydraulic excavator main valve Performance Detection testing table, wherein, said operating rod and said electromagnetic proportional valve are connected into the first rodding of said main valve to be measured through reversal valve, and said reversal valve is used for switching between said operating rod and the said electromagnetic proportional valve.
Above-mentioned hydraulic excavator main valve Performance Detection testing table wherein, is provided with rapid-acting coupling with said main valve connecting portion to be measured on the said pipeline.
The beneficial effect of technique scheme is:
1, can realize the many-sided detection of hydraulic excavator main valve performance through in the control device control oil channel unit action.
2, realize focusing on of data made things convenient for the output of testing result through control device.
3, realize manually control main valve to be measured and procedure auto-control main valve to be measured through switching between operating rod and the electromagnetic proportional valve.
4, make main valve to be measured be connected between the testing table rapidly, make things convenient for detecting through rapid-acting coupling.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the building-block of logic of a kind of hydraulic excavator main valve of the present invention Performance Detection testing table embodiment.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is described further, but not as qualification of the present invention.
As shown in Figure 1, a kind of hydraulic excavator main valve of embodiment of the invention Performance Detection testing table wherein, comprises excavator hydraulic analog unit and ECU; Excavator hydraulic analog unit comprises: in order to the power source of simulation digger engine; One hydraulic pump, hydraulic pump is connected with power source; The pressure flow control device, hydraulic pump is connected with main valve to be measured through the pressure flow control device; Be used to simulate the load simulating device of excavator hydraulic pressure execution unit; In order to connect the pipeline of main valve to be measured, pressure flow control device, hydraulic pump and load simulating device.ECU comprises: a plurality of temperature sensors in order to the temperature of gathering power source, main valve to be measured, pressure flow control device, hydraulic pump, load simulating device and pipeline; A plurality of pressure transducers in order to the pressure of gathering main valve to be measured, pressure flow control device, hydraulic pump, load simulating device and pipeline; A plurality of in order to gather the flow sensor of flow in main valve to be measured, pressure flow control device, hydraulic pump, load simulating device and the pipeline; One control device; Control device is connected respectively with a plurality of temperature sensors, a plurality of pressure transducer, a plurality of flow sensor, power source, pressure flow control device, hydraulic pump and load simulating device, and control device is in order to the flow signal of the pressure signal of the temperature signal that receives a plurality of temperature sensor collections, a plurality of pressure transducer collections and a plurality of flow sensor collections and control the action of power source, hydraulic pump, pressure flow control device and load simulating device.
In the above-mentioned embodiment; Power source is more excellent adopts the motor with the digger engine equal-wattage; Adopt motor can avoid producing waste gas under the experimental situation; The adopted 7.5t excavator hydraulic pump that hydraulic pump is more excellent adopts 7.5t excavator hydraulic pump to detect with the main valve that adapts to various hydraulic excavator through pressure flow control device controlled pressure and flow.
The principle of work of above-mentioned embodiment is: through control device control power source and hydraulic pump; And main valve hydraulic power to be measured is provided through the pressure flow control device; Through control device control load analogue means; The hydraulic pressure execution unit of simulation excavator, temperature, pressure and the data on flows of the main valve of passing back according to a plurality of temperature sensors, a plurality of pressure transducer and a plurality of flow sensor when main valve to be measured is worked detect each item performance of main valve to be measured.With the running parameter that is preset with each parts in the oil circuit corresponding in the timed unit with multiple detection method; When testing table was worked, each parts that temperature, pressure and the data on flows of the whole oil circuit that control device is passed back according to a plurality of temperature sensors, a plurality of pressure transducer are adjusted in real time and controlled on the whole oil circuit remained in selected preset duty.ECU also can integrated output unit, and output unit can be display device or PRN device, and in order to realize the output of testing result, the control device of ECU and output unit can be integrated in the electric cabinet, are convenient to maintenance.
On the technique scheme basis; Further; Also comprise leak detection unit; Leak detection unit comprises: auxiliary power source and in order to the auxiliary hydraulic pump of Leak Detection, auxiliary power source are connected with auxiliary hydraulic pump and for auxiliary hydraulic pump provides power, and control device is connected with auxiliary power source and auxiliary hydraulic pump and controls auxiliary power source and auxiliary hydraulic pump moves; In order to connect the auxiliary piping of auxiliary hydraulic pump and main valve to be measured; In order to detect the Minor flow sensor of auxiliary piping pressure; Minor flow sensor is connected with control device.Auxiliary power source, the auxiliary hydraulic pump of the control device control through ECU and receive the data that Minor flow sensor passes back and can realize Leak Detection; More excellent auxiliary power source can be a motor, adopts motor can avoid occurring in the experimental situation exhaust emission as auxiliary power source.
On the technique scheme basis, further, also comprise circulation cooling unit (not drawing in the drawings); The circulation cooling unit comprises: be connected in the heating radiator on the pipeline; One cooling device; Cooling device is connected through heat-conduction component with heating radiator, and cooling device is connected with control device, the action of control device control cooling device.Thereby the action of the temperature threshold that presets in temperature data that the control device of ECU is passed back according to a plurality of temperature sensors and control device control cooling device realizes the cooling effect of circulation cooling unit, and what cooling device was more excellent can select cooling tower.
On the technique scheme basis; Further; Comprise that operating control comprises operating rod that is connected with the first rodding control section of main valve to be measured and the electromagnetic proportional valve that is connected with the first rodding control section of main valve to be measured in order to operate the operating control of main valve to be measured, operating rod is in order to manual control main valve events to be measured; The control end of electromagnetic proportional valve is connected with control device, and control device is handled main valve events to be measured through the control electromagnetic proportional valve.Operating rod and electromagnetic proportional valve are connected into the first rodding of main valve to be measured through reversal valve, and reversal valve is used to switch between operating rod and the electromagnetic proportional valve.Operating rod also can only be set or electromagnetic proportional valve only is set, take single manual or automatic operation mode.
On the technique scheme basis; Further, load simulating device can be formed by a proportional pressure control valve and four hydraulic control one-way valves, through an actuation cycle of a proportional pressure control valve and four hydraulic control one-way valve simulation oil cylinders; Totally eight actions; Under this embodiment, not only can well simulate the one action and the composite move operation of excavator, can also gather performance datas such as load end pressure and flow signal easily through monitoring to each valve.
On the technique scheme basis; Further; Comprise pressure discharge control parts; The pressure discharge control parts are connected with control device, and the pressure discharge control parts are through the main oil circuit pressure release by power source, hydraulic pump, pressure flow control device, load simulating device and main valve group to be measured of control device control.The pressure discharge control parts can be formed by a button or the perhaps similar operating-controlling mechanism of push rod, through operation pressure discharge control parts, make control device make each parts in the oil circuit be in the pressure release state, thereby make main valve pressure release to be measured, are convenient to main valve to be measured by pulling down on the testing table.
On the technique scheme basis, further, be provided with rapid-acting coupling with main valve connecting portion to be measured on the pipeline.Rapid-acting coupling is set makes things convenient for main valve installation and removal to be measured; Can be provided with simultaneously one be used to settle main valve to be measured operating platform, the pipeline that is connected with rapid-acting coupling is placed around the operating platform fast assembling-disassembling with convenient main valve to be measured through extra suspension or installing structure.
The above is merely preferred embodiment of the present invention; Be not so limit claim of the present invention; So the equivalent structure that all utilizations instructions of the present invention and diagramatic content have been done changes; Perhaps those skilled in the art's technological means of habitually practising will be replaced, and all be included in protection scope of the present invention.
Claims (9)
1. a hydraulic excavator main valve Performance Detection testing table is characterized in that, comprises excavator hydraulic analog unit and ECU;
Said excavator hydraulic analog unit comprises:
Power source in order to the simulation digger engine;
One hydraulic pump, said hydraulic pump is connected with said power source;
The pressure flow control device, said hydraulic pump is connected with main valve to be measured through said pressure flow control device;
Be used to simulate the load simulating device of excavator hydraulic pressure execution unit;
In order to connect the pipeline of main valve to be measured, pressure flow control device, hydraulic pump and load simulating device;
Said ECU comprises:
A plurality of temperature sensors in order to the temperature of gathering said power source, said main valve to be measured, pressure flow control device, said hydraulic pump, said load simulating device and said pipeline;
A plurality of pressure transducers in order to the pressure of gathering said main valve to be measured, pressure flow control device, said hydraulic pump, said load simulating device and said pipeline;
A plurality of in order to gather the flow sensor of flow in said main valve to be measured, pressure flow control device, said hydraulic pump, said load simulating device and the said pipeline;
One control device; Said control device is connected respectively with a plurality of said temperature sensors, a plurality of said pressure transducer, a plurality of said flow sensor, said power source, said pressure flow control device, said hydraulic pump and said load simulating device, and said control device is in order to the flow signal of the pressure signal of the temperature signal that receives a plurality of said temperature sensor collections, a plurality of said pressure transducer collections and a plurality of said flow sensor collections and control the action of said power source, said hydraulic pump, said pressure flow control device and said load simulating device.
2. hydraulic excavator main valve Performance Detection testing table according to claim 1 is characterized in that also comprise leak detection unit, said leak detection unit comprises:
Auxiliary power source reaches the auxiliary hydraulic pump in order to Leak Detection; Said auxiliary power source is connected with said auxiliary hydraulic pump and for said auxiliary hydraulic pump power is provided, and said control device is connected with said auxiliary power source and said auxiliary hydraulic pump and controls the action of said auxiliary power source and said auxiliary hydraulic pump;
In order to connect the auxiliary piping of said auxiliary hydraulic pump and said main valve to be measured;
In order to detect the Minor flow sensor of said auxiliary piping pressure; Said Minor flow sensor is connected with said control device.
3. hydraulic excavator main valve Performance Detection testing table according to claim 1 is characterized in that, also comprises the circulation cooling unit; Said circulation cooling unit comprises:
Be connected in the heating radiator on the said pipeline;
One cooling device;
Said cooling device is connected through heat-conduction component with said heating radiator, and said cooling device is connected with said control device, and said control device is controlled said cooling device action.
4. hydraulic excavator main valve Performance Detection testing table according to claim 1; It is characterized in that; Comprise in order to operate the operating control of main valve to be measured; Said operating control comprises operating rod that is connected with the first rodding control section of said main valve to be measured and the electromagnetic proportional valve that is connected with the first rodding control section of said main valve to be measured; Said operating rod is in order to the said main valve events to be measured of manual control, and the control end of said electromagnetic proportional valve is connected with said control device, and said control device is handled said main valve events to be measured through controlling said electromagnetic proportional valve.
5. hydraulic excavator main valve Performance Detection testing table according to claim 1; It is characterized in that; Comprise in order to operate the operating control of main valve to be measured; Said operating control comprises operating rod that is connected with the first rodding control section of said main valve to be measured or the electromagnetic proportional valve that is connected with the first rodding control section of said main valve to be measured; Said operating rod is in order to the said main valve events to be measured of manual control, and the control end of said electromagnetic proportional valve is connected with said control device, and said control device is handled said main valve events to be measured through controlling said electromagnetic proportional valve.
6. hydraulic excavator main valve Performance Detection testing table according to claim 1 is characterized in that said hydraulic pump is used pump for the 7.5t excavator.
7. like the said hydraulic excavator main valve of claim 4 Performance Detection testing table; It is characterized in that; Comprise pressure discharge control parts; Said pressure discharge control parts are connected with said control device, the oil circuit pressure release that said pressure discharge control parts mainly are made up of said power source, said hydraulic pump, said pressure flow control device, said load simulating device and said main valve to be measured through said control device control.
8. like the said hydraulic excavator main valve of claim 4 Performance Detection testing table; It is characterized in that; Said operating rod and said electromagnetic proportional valve are connected into the first rodding of said main valve to be measured through reversal valve, and said reversal valve is used to switch between said operating rod and the said electromagnetic proportional valve.
9. like arbitrary said hydraulic excavator main valve Performance Detection testing table among the claim 1-8, it is characterized in that, be provided with rapid-acting coupling with said main valve connecting portion to be measured on the said pipeline.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210195792.3A CN102680227B (en) | 2012-06-14 | 2012-06-14 | Performance detection test stand for main valve of hydraulic excavator |
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| CN201210195792.3A CN102680227B (en) | 2012-06-14 | 2012-06-14 | Performance detection test stand for main valve of hydraulic excavator |
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Cited By (6)
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| CN103471829A (en) * | 2013-09-05 | 2013-12-25 | 南京工业大学 | Multi-way valve test bed of hydraulic excavator |
| CN104677660A (en) * | 2015-02-03 | 2015-06-03 | 贵阳永青仪电科技有限公司 | Automatic detection device and detection method for excavation efficiency of excavator |
| CN104915477A (en) * | 2015-05-18 | 2015-09-16 | 浙江工业大学 | Simulation method of mining hydraulic excavator excavating resistance |
| CN106424717A (en) * | 2016-09-06 | 2017-02-22 | 桂林电子科技大学 | Rare-earth powder high-pressure forming system |
| CN113588307A (en) * | 2021-07-16 | 2021-11-02 | 贵州詹阳动力重工有限公司 | Multifunctional rescue accessory performance test platform and method for hydraulic excavator |
| CN114542550A (en) * | 2022-03-22 | 2022-05-27 | 湖南诺玛液压科技有限公司 | Testing device and method for manual multi-way valve |
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| CN104915477A (en) * | 2015-05-18 | 2015-09-16 | 浙江工业大学 | Simulation method of mining hydraulic excavator excavating resistance |
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| CN106424717A (en) * | 2016-09-06 | 2017-02-22 | 桂林电子科技大学 | Rare-earth powder high-pressure forming system |
| CN113588307A (en) * | 2021-07-16 | 2021-11-02 | 贵州詹阳动力重工有限公司 | Multifunctional rescue accessory performance test platform and method for hydraulic excavator |
| CN114542550A (en) * | 2022-03-22 | 2022-05-27 | 湖南诺玛液压科技有限公司 | Testing device and method for manual multi-way valve |
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| CN102680227B (en) | 2014-10-01 |
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Effective date of registration: 20160311 Address after: 215500 southeast Road, Changshu Southeast Economic Development Zone, Suzhou, Jiangsu, Changshou City Patentee after: Changshu Huawei Track Co.,Ltd. Address before: 201413, No. two, 318 Avenue, Lingang Industrial Park, Shanghai, Fengxian District, A Patentee before: Shanghai Sany Heavy Machinery Co., Ltd. |
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