CN104074839B - A kind of hydraulic motor test stand - Google Patents
A kind of hydraulic motor test stand Download PDFInfo
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- CN104074839B CN104074839B CN201410307125.9A CN201410307125A CN104074839B CN 104074839 B CN104074839 B CN 104074839B CN 201410307125 A CN201410307125 A CN 201410307125A CN 104074839 B CN104074839 B CN 104074839B
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Abstract
The invention discloses a kind of hydraulic motor test stand, be arranged on motor test rig frame including load unit and unit to be checked, the load motor of load unit and the motor to be checked of unit to be checked, and be connected by shaft coupling, shaft coupling is provided with speed probe。The technology such as the whole adoption rate of testing stand of the present invention, sensing, controlled by control station concentrated collection, test solution pressure motor carried out manually and automatically control test, realize rotating speed, pressure, temperature, flow, the isoparametric control of load, the work in every parameter of display system, storage history of printing test parameter and real-time testing parameter, differentiate by the performance of test hydraulic motor。
Description
Technical field
The present invention relates to a kind of hydraulic test equipment, specifically a kind of hydraulic motor test stand。
Background technology
Hydraulic motor is the core Hydraulic Elements of engineering machinery, and its Performance Characteristics directly determines the performance of engineering machinery。The properties overhauling and maintaining the hydraulic motor after high-quality hydraulic motor and inspection maintenance just seems extremely important, therefore can to through repairing and having changed the imported hydraulic motor that spare part re-assemblies in the urgent need to a kind of assay device, carry out running-in test and check test, with identify repair after the performance of product whether qualified。
Summary of the invention
The technical problem to be solved is, shortcoming for above prior art, a kind of hydraulic motor test stand is proposed, it is possible to test solution pressure motor carried out manually and automatically control test, it is achieved to tested hydraulic motor rotary speed, pressure, temperature, flow, the isoparametric control of load。
In order to solve above-mentioned technical problem, the present invention provides a kind of hydraulic motor test stand, including load unit and unit to be checked, described load unit includes load fuel tank, load integrated package assembly and load hydraulic motor, described load fuel tank has oil-out and oil return opening, the oil-out place mounting ball valve successively of described load fuel tank, vane-type oil pump and check valve, the outlet of described check valve is provided with triplate line, first branch road is connected with described load integrated package assembly through pipe bundle condenser and the first hydraulic filter, second branch road is directly connected with described load integrated package assembly by the road；The oil-out of described load integrated package assembly is connected with described load hydraulic motor, the oil return opening of described load hydraulic motor is connected through the oil return opening of the second hydraulic filter with load fuel tank, it is provided with overflow branch road between oil return opening and second hydraulic filter of described load hydraulic motor, described overflow branch road is provided with overflow valve and is connected with described first branch road；
Described unit to be checked includes main fuel tank, pump discharge integrated package, motor outlet integrated package to be checked and motor oil return integrated package to be checked, described main fuel tank has oil-out and oil return opening, described main fuel tank oil-out is through ball valve, hydraulic axis plug pump is connected with described motor outlet integrated package to be checked with pump discharge integrated package, the oil-out of described motor outlet integrated package to be checked and motors to be measured, the oil return opening of described motor to be measured passes through return line through motor oil return integrated package to be checked, it is connected with the oil return opening of described main fuel tank after the filter of high-precision hydraulic oil and motor oil return pipe bundle condenser to be measured series connection；
The load hydraulic motor of load unit and the motor to be measured of unit to be checked are arranged on motor test rig frame, and are connected by shaft coupling, are provided with speed probe on shaft coupling；Described load integrated package assembly includes the first proportional pressure control valve and the rectifier bridge being made up of four check valves, described first proportional pressure control valve and the second branch road are connected, the first interface of rectifier bridge is connected with described first proportional pressure control valve, second interface of rectifier bridge, the 4th interface are connected with load hydraulic motor, and the 3rd interface of rectifier bridge is connected with the first hydraulic filter of described first branch road；Equipped with pressure transducer and temperature sensor between first interface and first proportional pressure control valve of rectifier bridge。
The present invention by load hydraulic motor can stepless loading moment of torsion, 5 can carry out testing under various speed conditions by the controls of flow, including the qualitative speed test of minimum steady。Testboard adopts high-precision pressure sensor, flow transducer, torque sensor and temperature sensor to detect in real time, it is ensured that by every duty parameter of test hydraulic motor accurately and reliably。
The technical scheme that the present invention limits further is: described motor outlet integrated package to be checked includes the second proportional pressure control valve, the 3rd hydraulic filter, flow transducer and three-position four-way hydraulic electromagnetic valve, A, B mouth of described three-position four-way hydraulic electromagnetic valve respectively with motors to be measured, the P mouth of described three-position four-way hydraulic electromagnetic valve is connected with pump discharge integrated package through described flow transducer, and the T mouth of described three-position four-way hydraulic electromagnetic valve is connected with described return line through the 3rd hydraulic filter, the second proportional pressure control valve。
Described in aforesaid hydraulic motor test stand, pump discharge integrated package includes check valve, 4th hydraulic filter, 3rd proportional pressure control valve and accumulator, described check valve and the series connection of the 4th hydraulic filter, the import of described check valve connects hydraulic axis plug pump, the outlet of described 4th hydraulic filter is connected with described motor outlet integrated package to be checked, the pipeline that described 4th hydraulic filter is connected with described motor outlet integrated package to be checked is provided with pressure transducer and accumulator, the outlet of described 4th hydraulic filter is provided with the second overflow branch road, second overflow branch road is installed the 3rd proportional pressure control valve be connected with return line。
Aforesaid hydraulic motor test stand, described motor oil return integrated package to be checked includes the 5th hydraulic filter, the 4th proportional pressure control valve and flow transducer and is sequentially connected in series, being provided with temperature sensor in one end of described 4th proportional pressure control valve, the other end at described 4th proportional pressure control valve is provided with pressure transducer。
The pipeline of A, B mouth of three-position four-way hydraulic electromagnetic valve described in aforesaid hydraulic motor test stand is mounted on pressure transducer and temperature sensor。
Aforesaid hydraulic motor test stand, the P mouth place of described three-position four-way hydraulic electromagnetic valve is provided with exhaust-valve, to guarantee the stable operation of three-position four-way hydraulic electromagnetic valve, reduces fault rate。
Aforesaid hydraulic motor test stand, the shell side cooling liquid inlet of described motor oil return pipe bundle condenser to be measured is provided with two two logical electromagnetic water valves。
Further, aforesaid hydraulic motor test stand, described load fuel tank and main fuel tank are mounted on temperature sensor, the oil-out place of described load fuel tank and main fuel tank is mounted on hydraulic filter。
Beneficial effects of the present invention: the present invention is by detecting by the test return flow of hydraulic motor, leakage flow, moment of torsion and pressure, process through data, reflection is by the test various performance of hydraulic motor comprehensively, provides science data for the unfailing performance and quality improving product。The technology such as the whole adoption rate of testing stand of the present invention, sensing, controlled by control station concentrated collection, test solution pressure motor carried out manually and automatically control test, realize rotating speed, pressure, temperature, flow, the isoparametric control of load, the work in every parameter of display system, storage history of printing test parameter and real-time testing parameter, differentiate by the performance of test hydraulic motor。
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention。
Detailed description of the invention
The present invention is described in further detail below:
Embodiment 1
A kind of hydraulic motor test stand that the present embodiment provides, structure is as shown in Figure 1, including load unit and unit to be checked, load unit includes load fuel tank 18, load integrated package assembly 25 and load hydraulic motor 23, load integrated package assembly includes proportional pressure control valve 15 and is connected with the rectifier bridge 14 being made up of four check valves, load fuel tank 18 has oil-out and oil return opening, oil-out place mounting ball valve successively, vane-type oil pump 16 and check valve 19, one-way valved outlet is provided with triplate line 13, first branch road is connected with load integrated package assembly with hydraulic filter through pipe bundle condenser 24, second branch road is directly connected with load integrated package assembly 25 by the road, proportional pressure control valve 15 in load integrated package assembly 25 is connected with the second branch road, the first interface of rectifier bridge 14 is connected with proportional pressure control valve 15, the second of rectifier bridge, four interfaces are connected with load hydraulic motor 23, 3rd interface of rectifier bridge and the hydraulic filter of the first branch road are connected；Equipped with pressure transducer and temperature sensor between first interface and the proportional pressure control valve of rectifier bridge 14；The oil return opening of load motor is connected with 18 oil return openings of load fuel tank through hydraulic filter 12, is provided with overflow branch road between oil return opening and the hydraulic filter of load motor, overflow branch road is provided with overflow valve 17 and is connected with the first branch road。Unit to be checked includes main fuel tank 11, pump discharge integrated package 3, motor outlet integrated package 28 to be checked and motor oil return integrated package 1 to be checked, motor outlet integrated package 28 to be checked includes proportional pressure control valve 31, hydraulic filter 33, flow transducer 35 and three-position four-way hydraulic electromagnetic valve 21, the A of three-position four-way hydraulic electromagnetic valve 21, B mouth is connected with motor 36 to be measured respectively, A, the pipeline of B mouth is mounted on pressure transducer and temperature sensor, the P mouth of three-position four-way hydraulic electromagnetic valve is connected with pump discharge integrated package through flow transducer 35, P mouth place is provided with exhaust-valve 520, the T mouth of three-position four-way hydraulic electromagnetic valve is through hydraulic filter 28, proportional pressure control valve 31 is connected with return line；Pump discharge integrated package 3 includes check valve 38, hydraulic filter 37, proportional pressure control valve 39 and accumulator 30, check valve 38 and hydraulic filter 37 are connected, check valve inlet connects hydraulic axis plug pump 4, the outlet of hydraulic filter is connected with the three-position four-way hydraulic electromagnetic valve P mouth of motor outlet integrated package to be checked, the pipeline that hydraulic filter is connected with motor outlet integrated package to be checked is provided with pressure transducer and accumulator 30, the outlet of hydraulic filter is provided with the second overflow 10 branch road, and on the second overflow branch road, proportion of installation overflow valve 39 is connected with return line；Motor oil return integrated package 1 to be checked includes hydraulic filter 40, proportional pressure control valve 29 and flow transducer 32 and is sequentially connected in series, and is separately installed with temperature sensor and pressure transducer at the two ends of proportional pressure control valve 29。Main fuel tank has oil-out and oil return opening, oil-out is connected with motor outlet integrated package to be checked with pump discharge integrated package through ball valve 9, hydraulic axis plug pump 4, the oil-out of motor outlet integrated package to be checked and motors to be measured, the oil return opening of motor to be measured is connected with the oil return opening of main fuel tank after motor oil return integrated package to be checked, high-precision hydraulic oil filter 5 and motor oil return pipe bundle condenser 8 to be measured series connection by return line, and the shell side cooling liquid inlet of motor oil return pipe bundle condenser to be measured is provided with two two logical electromagnetic water valves 6；The load motor of load unit and the motor to be checked of unit to be checked are arranged on motor test rig frame 22, and are connected by shaft coupling, are provided with speed probe on shaft coupling。
Being mounted on temperature sensor 10,10 ' on the load fuel tank of the present embodiment and main fuel tank, the oil-out place of load fuel tank and main fuel tank is mounted on hydraulic filter。
The hydraulic axis plug pump of unit to be checked adopts YVP250M frequency control motor to mate, drag the hydraulic axis plug pump of A2F55, and hydraulic oil container, hydraulic filter, proportional pressure control valve, check valve, reversal valve, fluid cooler, pressure transducer, temperature sensor, flow transducer etc., set up into a complete unit to be checked, for giving by test hydraulic motor, hydraulic energy source no less than 60L/min is provided, it is made to be converted to mechanical energy by hydraulic energy, drag load motor and hydraulic pump closed type hydraulic system thereof, such that it is able to carry out every test of hydraulic motor。Main fuel tank is when design, fully take into account by the highest test speed 12000r/min of test hydraulic motor, need to provide the hydraulic energy source no less than 60L/min, fully take into account the heat radiation factor of fluid, the dischargeable capacity of fuel tank is 200 liters, material selection rustless steel, fuel tank is provided with fuel level indicator, air filter and oil temperature sensor。
Load unit adopts blade hydraulic pump, hydraulic filter, proportional pressure control valve, fluid cooler, pressure transducer, temperature sensor and load fuel tank, use as load pump in conjunction with load motor, the bridge type return built, sets up into a complete hydraulic pump closed type hydraulic system。Owing to adopting hydraulic motor to use as load pump, not only efficiency can reduce, along with increasing of rotating speed also can form serious oil suction not foot phenomenon, so, the present embodiment adopts blade hydraulic pump as slippage pump, carrying out repairing to load pump import, the effective normal work ensureing closed type hydraulic system, thus having ensured the performance test of hydraulic motor system。
What the electrical control of the present embodiment adopted NI company tests system based on LabVIEW5 hydraulic motor, running environment is WINDOWS2000, show realizing common condition graphical state, all of test can be shown by multilamellar split screen, and record the corresponding printing testing data and correlation properties curve, it addition, TT&C system has common condition automatically configures function, can providing patterned test procedure editing interface, test procedure can be edited by test operation personnel, store and the multinomial work such as deletion。Realizing data acquisition and Control card centralized Control, operation is rationally, safe and reliable。
The testing stand of the present embodiment is in use, motor rotary speed to be measured is 8800r/min, inlet pressure is 26.75Mpa ± 0.4Mpa, import oil temperature is 52 DEG C ± 6 DEG C, and outlet pressure and return pressure are operate 1 minute under 3.5Mpa, then pin motor drive shaft in case spline is moved, inlet pressure is increased to 31Mpa ± 0.34Mpa, housing return pressure increases to 0.69Mpa from 0, and oil temperature is 38 DEG C ± 14 DEG C pressurizes 2 minutes, and motor each composition surface place and housing, point oil cap surface etc. should not form drop-wise leakage；Axle tail sealing place leakage rate is not more than 7.5mL/h (exchange is tested once after importing and exporting again)。Then being imported and exported by motor to be measured and block, the pressure passing into 0.7Mpa from oil return opening carries out static pressure test, half an hour time, and each composition surface is not allow for permeability, and axle tail sealing place leakage of oil amount half an hour is less than one。
Above example is only the technological thought that the present invention is described, it is impossible to limits protection scope of the present invention, every technological thought proposed according to the present invention, any change done on technical scheme basis with this, each falls within scope。
Claims (8)
1. a hydraulic motor test stand, including load unit and unit to be checked, described load unit includes load fuel tank, load integrated package assembly and load hydraulic motor, described load fuel tank has oil-out and oil return opening, the oil-out place mounting ball valve successively of described load fuel tank, vane-type oil pump and check valve, the outlet of described check valve is provided with triplate line, first branch road is connected with described load integrated package assembly through pipe bundle condenser and the first hydraulic filter, and the second branch road is directly connected with described load integrated package assembly by the road；The oil-out of described load integrated package assembly is connected with described load hydraulic motor, the oil return opening of described load hydraulic motor is connected through the oil return opening of the second hydraulic filter with load fuel tank, it is provided with the first overflow branch road between oil return opening and second hydraulic filter of described load hydraulic motor, described first overflow branch road is provided with overflow valve and is connected with described first branch road；
Described unit to be checked includes main fuel tank, pump discharge integrated package, motor outlet integrated package to be checked and motor oil return integrated package to be checked, described main fuel tank has oil-out and oil return opening, described main fuel tank oil-out is through ball valve, hydraulic axis plug pump is connected with described motor outlet integrated package to be checked with pump discharge integrated package, the oil-out of described motor outlet integrated package to be checked and motors to be checked, the oil return opening of described motor to be checked passes through return line through motor oil return integrated package to be checked, it is connected with the oil return opening of described main fuel tank after the filter of high-precision hydraulic oil and motor oil return pipe bundle condenser to be checked series connection；
The load hydraulic motor of load unit and the motor to be checked of unit to be checked are arranged on motor test rig frame, and are connected by shaft coupling, are provided with speed probe on shaft coupling；It is characterized in that: described load integrated package assembly includes the first proportional pressure control valve and the rectifier bridge being made up of four check valves, described first proportional pressure control valve and the second branch road are connected, the first interface of rectifier bridge is connected with described first proportional pressure control valve, second interface of rectifier bridge, the 4th interface are connected with load hydraulic motor, and the 3rd interface of rectifier bridge is connected with the first hydraulic filter of described first branch road；Equipped with pressure transducer and temperature sensor between first interface and first proportional pressure control valve of rectifier bridge。
2. hydraulic motor test stand according to claim 1, it is characterized in that: described motor outlet integrated package to be checked includes the second proportional pressure control valve, the 3rd hydraulic filter, flow transducer and three-position four-way hydraulic electromagnetic valve, A, B mouth of described three-position four-way hydraulic electromagnetic valve respectively with motors to be checked, the P mouth of described three-position four-way hydraulic electromagnetic valve is connected with pump discharge integrated package through described flow transducer, and the T mouth of described three-position four-way hydraulic electromagnetic valve is connected with described return line through the 3rd hydraulic filter, the second proportional pressure control valve。
3. hydraulic motor test stand according to claim 2, it is characterized in that: described pump discharge integrated package includes the first check valve, 4th hydraulic filter, 3rd proportional pressure control valve and accumulator, described first check valve and the series connection of the 4th hydraulic filter, the import of described first check valve connects hydraulic axis plug pump, the outlet of described 4th hydraulic filter is connected with described motor outlet integrated package to be checked, the pipeline that described 4th hydraulic filter is connected with described motor outlet integrated package to be checked is provided with pressure transducer and accumulator, the outlet of described 4th hydraulic filter is provided with the second overflow branch road, second overflow branch road is installed the 3rd proportional pressure control valve be connected with return line。
4. hydraulic motor test stand according to claim 1, it is characterized in that: described motor oil return integrated package to be checked is sequentially connected in series by the 5th hydraulic filter, the 4th proportional pressure control valve and flow transducer, being provided with temperature sensor in one end of described 4th proportional pressure control valve, the other end at described 4th proportional pressure control valve is provided with pressure transducer。
5. hydraulic motor test stand according to claim 2, it is characterised in that: the pipeline of A, B mouth of described three-position four-way hydraulic electromagnetic valve is mounted on pressure transducer and temperature sensor。
6. hydraulic motor test stand according to claim 2, it is characterised in that: the P mouth place of described three-position four-way hydraulic electromagnetic valve is provided with exhaust-valve。
7. hydraulic motor test stand according to claim 1, it is characterised in that: the shell side cooling liquid inlet of described motor oil return pipe bundle condenser to be checked is provided with two two logical electromagnetic water valves。
8. hydraulic motor test stand according to claim 1, it is characterised in that: being mounted on temperature sensor on described load fuel tank and main fuel tank, the oil-out place of described load fuel tank and main fuel tank is mounted on hydraulic filter。
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| CN201410307125.9A CN104074839B (en) | 2014-06-30 | 2014-06-30 | A kind of hydraulic motor test stand |
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| CN104074839B true CN104074839B (en) | 2016-06-22 |
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| CN104500504B (en) * | 2014-12-19 | 2017-01-11 | 上海电气液压气动有限公司 | Forward-reverse rotation load sensitivity test system for closed type hydraulic pumps |
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| CN104500380B (en) * | 2014-12-19 | 2016-12-07 | 上海电气液压气动有限公司 | Closed type hydraulic pump rotating comprehensive test system |
| CN104514761B (en) * | 2014-12-19 | 2017-03-15 | 长安大学 | A kind of hydraulic pump that can be consumed energy with recovery test and motor test rig |
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| CN105065371A (en) * | 2015-08-11 | 2015-11-18 | 中国航空工业集团公司西安飞机设计研究所 | Hydraulic energy system testing apparatus |
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| CN105275922B (en) * | 2015-11-28 | 2017-06-30 | 南通华夏飞机工程技术股份有限公司 | Hydraulic test cart |
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| PL160137B1 (en) * | 1989-12-08 | 1993-02-26 | Hydraulic system of a hydraulic motor testing station | |
| CN101871478B (en) * | 2010-07-07 | 2012-08-29 | 金碧华 | Loading device of hydraulic motor test board |
| CN202900838U (en) * | 2012-10-30 | 2013-04-24 | 杭州海聚动力科技有限公司 | Bi-directional closed type loading return circuit system in test platform 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 |
| CN103511396B (en) * | 2013-09-03 | 2016-01-20 | 燕山大学 | Based on oil hydraulic pump and the oil hydraulic motor reliability test of power recovery technology |
| CN103511401A (en) * | 2013-10-23 | 2014-01-15 | 陕西盛迈石油有限公司 | Hydraulic motor test bench |
| CN204003789U (en) * | 2014-06-30 | 2014-12-10 | 南京创贝高速传动机械有限公司 | A kind of hydraulic motor test stand |
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Denomination of invention: Test bed for hydraulic motor Effective date of registration: 20190929 Granted publication date: 20160622 Pledgee: Nanjing Bank Co., Ltd. Chengnan Branch Pledgor: Nanjing Chuan Bei high-speed drive Machinery Co., Ltd. Registration number: Y2019320000172 |