CN214945442U - Hydraulic motor test hydraulic system - Google Patents
Hydraulic motor test hydraulic system Download PDFInfo
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- CN214945442U CN214945442U CN202121009713.6U CN202121009713U CN214945442U CN 214945442 U CN214945442 U CN 214945442U CN 202121009713 U CN202121009713 U CN 202121009713U CN 214945442 U CN214945442 U CN 214945442U
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Abstract
The utility model discloses a hydraulic motor test hydraulic system belongs to the hydraulic motor field. The system comprises: the rack assembly comprises a hydraulic motor, a torque and rotating speed sensor is connected to the hydraulic motor, the torque and rotating speed sensor is used for testing the torque and rotating speed of the hydraulic motor, an oil tank is used for providing oil for the system, a driving system is used for driving the tested hydraulic motor, a load system is used for providing load for the tested hydraulic motor, and a heating and circulating system is used for providing and supplementing oil for the load system. This application passes through the hydraulic motor test hydraulic system that the hydraulic motor test bench matches, can carry out running-in test and inspection test to the hydraulic motor of having repaired and having changed the subassembly reassembly through repairing, whether qualified with the performance of appraisal repair back product, satisfy experimental requirement, whole set of hydraulic motor test hydraulic system reasonable in design is normal simultaneously, under the prerequisite that satisfies service function, optimize the pipeline flow direction as far as possible, make the system reliable and stable.
Description
Technical Field
The utility model belongs to the hydraulic motor field specifically is hydraulic motor test hydraulic system.
Background
The hydraulic motor is also called as an oil motor, is an actuating element of a hydraulic system, can convert the hydraulic pressure energy provided by a hydraulic pump into mechanical energy (torque and rotating speed) of an output shaft of the hydraulic motor, has the advantages of small volume, high efficiency, wide rotating speed range and the like, and is mainly applied to injection molding machinery, ships, lifting machines, engineering machinery, construction machinery, coal mine machinery, mining machinery, metallurgical machinery, ship machinery, petrochemical industry, port machinery and other equipment. The existing hydraulic motor is usually used as a hydraulic motor test bed during testing and inspection, and the hydraulic motor test bed can perform displacement verification tests, variable characteristic tests, overload tests, impact performance tests, starting efficiency tests, low-speed performance tests, overspeed performance tests, full-load tests, high-temperature performance tests and the like so as to ensure the normal use and efficiency of the hydraulic motor.
However, the conventional hydraulic motor test bed is usually lack of a matched hydraulic motor test hydraulic system, so that the hydraulic motor test bed cannot stably and reliably test the hydraulic motor which is repaired and replaced by a component for reassembly, carry out a running-in test and a detection test, and reduce the detection range and efficiency of the hydraulic motor test bed.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the hydraulic motor test hydraulic system matched with the hydraulic motor test bed is provided to solve the problems in the prior art.
The technical scheme is as follows: the method comprises the following steps: the rack assembly comprises a hydraulic motor, a torque and rotating speed sensor is connected to the hydraulic motor, and the torque and rotating speed sensor is used for testing the torque and rotating speed of the hydraulic motor;
the oil tank is used for providing oil for the system;
the driving system is used for driving the hydraulic motor to be tested;
the load system is used for providing load for the hydraulic motor to be tested;
and the heating circulating system is used for supplying and supplementing oil liquid for the load system.
In a further embodiment, the driving system comprises a main oil path integrated part and an inclined axial plunger pump, the driving system is mainly used for driving a tested hydraulic motor, the inclined axial plunger pump is electrically connected with a variable frequency speed regulating motor, the inclined axial plunger pump is driven by the variable frequency speed regulating motor to provide an oil source for the hydraulic motor, the variable frequency speed regulating motor is used for driving the inclined axial plunger pump, and one end of the inclined axial plunger pump is connected with a high-pressure plate type filter;
the high-pressure plate type filter is used for filtering an oil source provided by the inclined shaft type axial plunger pump, and a first tubular check valve is connected between the inclined shaft type axial plunger pump and the high-pressure plate type filter; the other end of the high-pressure plate type filter is connected with an electro-hydraulic reversing valve; oil enters the high-pressure plate filter through the first pipe type check valve, the filtered oil enters the electro-hydraulic reversing valve and then enters the product inlet and flows out of the product outlet, the product outlet is connected with the first gear wheel flowmeter and the electric control ball valve,
the electro-hydraulic reversing valve is used for controlling the steering of the filtering oil source, wherein the rotating speed of the hydraulic motor is controlled by the inclined shaft type axial plunger pump and the variable frequency speed regulating motor which provide oil with different flow rates, the pressure is controlled by the overflow of the proportional overflow valve, and the steering is controlled by the electro-hydraulic reversing valve.
In a further embodiment, one end, far away from the hydraulic motor, of the electro-hydraulic reversing valve is connected with a first gear flowmeter, the other end of the first gear flowmeter is connected with an electric control ball valve, a brazed plate heat exchanger is connected between the electric control ball valve and an oil tank, the oil flows back to the oil tank through the brazed plate heat exchanger, and the flow is measured by the first gear flowmeter.
In a further embodiment, a load oil path integrated part is arranged in the load system, the load oil path integrated part comprises a proportional overflow valve, the proportional overflow valve is used for setting the oil pressure of the hydraulic motor, the load system mainly provides a load for the tested hydraulic motor, shafts at two ends of a torque rotating speed sensor are connected with the load hydraulic motor, and the oil pressure of the load hydraulic motor is set by the proportional overflow valve;
the hydraulic motor is characterized in that a plurality of plate-type check valves are connected between the hydraulic motor and the proportional overflow valve and used for controlling the inlet and outlet oil flow directions of the hydraulic motor to be unchanged, preferably, four plate-type check valves are arranged, and a rectifying system consisting of the four plate-type check valves can ensure that the inlet and outlet oil flow directions of the hydraulic motor are unchanged no matter whether the loaded hydraulic motor rotates forwards or backwards.
In a further embodiment, the load oil path integrated piece is connected with an oil source assembly, the oil source assembly is connected with the main oil path integrated piece, and a pipeline heater is arranged in the oil source assembly and can heat oil to a required temperature.
In a further embodiment, an overflow port is installed on the hydraulic motor, a second pressure transmitter and a second temperature sensor are installed at the overflow port, and the second pressure transmitter and the second temperature sensor are respectively used for detecting the pressure and the temperature of overflow;
and a second gear flow meter is arranged on the outer side of the overflow port, a small flow regulating valve is connected between the second gear flow meter and the hydraulic motor, and the small flow regulating valve is used for regulating overflow pressure.
Has the advantages that: the utility model discloses a hydraulic motor test hydraulic system who matches with hydraulic motor test bench can carry out running-in test and inspection test to the hydraulic motor of having repaired and having changed the subassembly reassembly through repairing, whether qualified to appraise the performance of repairing the back product, satisfy experimental requirement, whole set of hydraulic motor test hydraulic system reasonable in design is normal simultaneously, under the prerequisite that satisfies service function, optimizes the pipeline flow direction as far as, makes the system reliable and stable.
Drawings
Fig. 1 is a schematic diagram of the hydraulic motor testing system of the present invention.
Fig. 2 is a schematic structural diagram of the fuel tank of the present invention.
The reference numerals shown in fig. 1 to 2 are: 1. the oil tank comprises an oil tank, 101, a tank body, 102, an oil inlet filter mounting seat, 103, a liquid level meter mounting seat, 104, a reinforcing pipe, 105, an oil discharge seat, 106, a panel, 107, a large flange, 2, an air filter, 3, a self-sealing oil absorption filter, 4, a liquid level thermometer, 5, a first low-pressure ball valve, 6, a second low-pressure ball valve, 7, an oil return filter, 8, a first temperature sensor, 9, an electromagnetic valve, 10, a first tubular check valve, 11, a second tubular check valve, 12, an energy accumulator, 13, a torque and speed sensor, 14, an inclined shaft type axial plunger pump, 15, a variable frequency speed regulating motor, 16, a variable vane pump set, 17, a high-pressure plate type filter, 18, a first pressure transmitter, 19, a second pressure transmitter, 20, a third pressure transmitter, 21, a hydraulic motor, 22, a second temperature sensor, 23, a plate type overflow valve, 24, a plate type check valve, 25, a small flow regulating valve, 18, a pressure sensor, 26. the device comprises a brazed plate type heat exchanger, 27, a first gear flow meter, 28, a second gear flow meter, 29, an electric control ball valve, 30, a proportional overflow valve, 31, an electro-hydraulic reversing valve, 32, a rack assembly, 33, an oil source assembly, 34, a main oil circuit integrated piece, 35, a load oil circuit integrated piece and 36, and a pipeline heater.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
The hydraulic motor is also called as an oil motor, is an actuating element of a hydraulic system, can convert the hydraulic pressure energy provided by a hydraulic pump into the mechanical energy torque and the rotating speed of an output shaft of the hydraulic motor, has the advantages of small volume, high efficiency, wide rotating speed range and the like, and is mainly applied to injection molding machinery, ships, lifting machines, engineering machinery, construction machinery, coal mine machinery, mining machinery, metallurgical machinery, ship machinery, petrochemical industry, port machinery and other equipment. The existing hydraulic motor test bed can be used for a hydraulic motor test bed in testing and inspection, the hydraulic motor test bed can perform displacement verification test, variable characteristic test, overload test, impact performance test, starting efficiency test, low-speed performance test, overspeed performance test, full-load test, high-temperature performance test and the like so as to ensure normal use and efficiency of the hydraulic motor, but the existing hydraulic motor test bed is lack of a matched hydraulic motor test hydraulic system generally, so that the hydraulic motor test bed can not test the hydraulic motor which is repaired and replaced by a component for reassembly stably and reliably, and can perform running-in test and inspection test so as to reduce the detection range and efficiency of the hydraulic motor test bed. In order to solve the above problems, the applicant developed a hydraulic motor test hydraulic system.
The hydraulic motor test hydraulic system, as shown in fig. 1-2, includes: the rack assembly 32 comprises a hydraulic motor 21, a torque and speed sensor 13 is connected to the hydraulic motor 21, the torque and speed sensor 13 is used for testing the torque and speed of the hydraulic motor 21, a pair of hydraulic motors 21 are provided, the type of each hydraulic motor 21 is YMD-5.1, the type of the torque and speed sensor 13 is JC0-20-12000, in order to meet the requirements of the hydraulic motor test bed construction, the system is specially designed, the system is specially customized for the hydraulic motor test bed, and the test bed can carry out running-in tests and inspection tests on the hydraulic motors which are repaired and replaced by the components and reassembled according to the relevant contents specified in the hydraulic motor acceptance technical conditions so as to determine whether the performance of repaired products is qualified or not.
The oil tank 1 is used for providing oil for a system, the oil tank 1 comprises a tank body 101, a pair of oil inlet filter installation seats 102 are installed on the side wall of the tank body 101, the pair of oil inlet filter installation seats 102 are symmetrically arranged around the central axis of the tank body 101, the oil inlet filter installation seats 102 are used for installing and fixing oil inlet filters, two liquid level meter installation seats 103 are installed on the side wall of the tank body 101, the liquid level meter installation seats 103 are used for installing and fixing a liquid level thermometer 4, an embedded plate 106 is connected to the inner wall of the tank body 101, a reinforcing pipe 104 is installed on the embedded plate 106, the embedded plate 106 is used for installing a reinforcing pipe 104, the reinforcing pipe 104 is used for reinforcing the oil tank 1, an oil discharge seat 105 is installed inside the tank body 101 and used for discharging oil, a large flange 107 and a self-sealing type oil suction filter 3 are installed on one side of the tank body 101, and the large flange 107 is used for external equipment of the oil tank 1, and in addition, the air cleaner 2 and the self sealing type oil suction filter 3 are also included, The oil-gas separator comprises a first low-pressure ball valve 5, a cleaning window, a liquid level thermometer 4, a second low-pressure ball valve 6, an oil return filter 7, a first temperature sensor 8 and an oil inlet and oil return port, wherein the model of the air filter 2 is EF4-50, the model of the self-sealing oil absorption filter 3 is TF-100X80L-C, the model of the liquid level thermometer 4 is YWZ-300T, the model of the first low-pressure ball valve 5 is 3PC-Q11F-40P-1, the model of the second low-pressure ball valve 6 is 3PC-Q11F-40P-1/2, and the model of the oil return filter 7 is RF-160X 5L-C;
a drive system for driving the hydraulic motor 21 to be tested;
a load system for providing a load to the hydraulic motor 21 to be tested;
the heating circulating system is used for providing and supplementing oil for a load system, the heating circulating system is mainly used for providing and supplementing the oil for the load system, a pipeline heater 36 is arranged in the heating circulating system, the pipeline heater 36 can heat the oil to a required temperature, a plurality of filters can filter impurities, the variable vane pump set 16 is always in a working state when the system works, the model of the variable vane pump set 16 is M-VPV1-20-2.0K-0.75, the oil supply pressure is set by the plate-type overflow valve 23, the model of the plate-type overflow valve 23 is DBDS6P10B/25, the oil temperature can be set by heating and cooling the cooperation of a first oil sensor 8 and control software, the model of the first oil sensor 8 is STT-C2A1Bc250D2x1.5E3Sf2S0, and the requirements of the load system on the initial pressure and the oil temperature are met.
The driving system comprises a main oil way integrated part 34 and an inclined axial plunger pump 14, the inclined axial plunger pump 14 is A2F28R1P4 in model number, the driving system is mainly used for driving a tested hydraulic motor 21, the inclined axial plunger pump 14 is electrically connected with a variable frequency speed regulating motor 15 in model number of YVF2-200L-4, the inclined axial plunger pump 14 is driven by the variable frequency speed regulating motor 15 to provide an oil source for the hydraulic motor 21, the variable frequency speed regulating motor 15 is used for driving the inclined axial plunger pump 14, one end of the inclined axial plunger pump 14 is connected with a high-pressure plate filter 17 in model number of DFB-H110x3C, the high-pressure plate filter 17 is used for filtering the oil source provided by the inclined axial plunger pump 14, a tubular one-way valve 10 is connected between the inclined axial plunger pump 14 and the high-pressure plate filter 17, and the tubular one-way valve 10 in model number of S15A 2B; the other end of the high-pressure plate type filter 17 is connected with an electro-hydraulic reversing valve 31, and the model of the electro-hydraulic reversing valve 31 is YDF-23; oil enters the high-pressure plate filter 17 through the first tubular check valve 10, the filtered oil enters the electro-hydraulic reversing valve 31 and then enters the product inlet to flow out of the outlet, the outlet is connected with the first gear wheel flowmeter 27 and the electric control ball valve 29, the first gear wheel flowmeter 27 is VC3A6PS, and internal threads G3/4 are arranged at two ends of the electric control ball valve 29.
Specifically, the driving system is mainly used for driving a tested hydraulic motor, an inclined axial plunger pump 14 is driven by a variable frequency speed regulating motor 15 to provide an oil source for a hydraulic motor 21, oil enters a high-pressure plate filter 17 through a first tubular check valve 10, one side of the high-pressure plate filter 17 is connected with an energy accumulator 12, the model of the energy accumulator 12 is NXQA-2.5/315LA, the filtered oil enters an electrohydraulic reversing valve 31 and then enters a product inlet and flows out of the product inlet, the outlet is connected with a first gear wheel flowmeter 27 and an electric control ball valve 29 and then flows back to an oil tank 1 through a brazing plate heat exchanger 26, the model of the brazing plate heat exchanger 26 is ZL120B-100D, an electromagnetic valve 9 is connected on the brazing plate heat exchanger 26, the rotating speed of the hydraulic motor 21 is controlled by the inclined axial plunger pump 14 and the variable frequency speed regulating motor 15 through oil with different flow rates, the pressure is controlled by the overflow of a proportional overflow valve 30, the steering is controlled by an electro-hydraulic directional valve 31, the torque speed of the hydraulic motor 21 is measured by a torque speed sensor 13, the pressure is measured by a temperature sensor two 22, and the flow is measured by a gear flow meter one 27.
Referring to fig. 1, the electro-hydraulic directional valve 31 is used for controlling the steering of the filtered oil source, the model of the electro-hydraulic directional valve 31 is YDF-23, two groups of pressure transmitters 18 and two groups of temperature sensors 22 are connected between the electro-hydraulic directional valve 31 and the hydraulic motor 21, the model of the pressure transmitter 18 is MPM480C0-25JMPaE22B1PC1G, wherein, the rotating speed of the hydraulic motor 21 is controlled by the inclined shaft type axial plunger pump 14 and the variable frequency speed regulating motor 15 to provide oil with different flow rates, the pressure is controlled by the overflow of the proportional overflow valve 30, the steering is controlled by the electro-hydraulic reversing valve 31, one end of the electro-hydraulic reversing valve 31 far away from the hydraulic motor 21 is connected with a first gear flow meter 27, the other end of the first gear flow meter 27 is connected with an electric control ball valve 29, a brazed plate type heat exchanger 26 is connected between the electric control ball valve 29 and the oil tank 1, the oil flows back to the oil tank 1 through the brazed plate heat exchanger 26, and the flow rate is measured by the first gear flowmeter 27.
Wherein, a load oil path integrated piece 35 is arranged in the load system, the load oil path integrated piece 35 comprises a proportional overflow valve 30, the model of the proportional overflow valve 30 is DBE10-5X/315YG24K4V, the proportional overflow valve 30 is provided with a pair of plugs, the proportional overflow valve 30 is connected with a plug and an analog amplifier module, the model of the plug is DIM-EN-175-301-803, the model of the analog amplifier is VT11131-1X, the proportional overflow valve 30 is connected with a brazing plate type heat exchanger 26 and a variable vane pump set 16, a tubular one-way valve 11 is connected between the variable vane pump set 16 and the proportional overflow valve 30, the model of the tubular one-way valve 11 is S10A2B, the proportional overflow valve 30 is used for adjusting the oil pressure of the hydraulic motor 21, the load system mainly provides load for the hydraulic motor 21 to be measured, and is connected with the load hydraulic motor 21 through shafts at two ends of a torque rotating speed sensor 13, the oil pressure of the load hydraulic motor 21 is set by the proportional relief valve 30; the hydraulic motor 21 and the proportional overflow valve 30 are connected with a plurality of plate-type check valves 24, the types of the plate-type check valves 24 are S10P11B, the plate-type check valves 24 are used for controlling the flow direction of oil at the inlet and the outlet of the hydraulic motor 21 to be constant, preferably, four plate-type check valves 24 are provided, four plate-type check valves 24 are externally connected with three pressure transmitters 20, the types of the three pressure transmitters 20 are MPM480CO-2JMPAE22B1PC1G, a rectifying system formed by the four plate-type check valves 24 can ensure that the flow direction of the oil at the inlet and the outlet of the hydraulic motor 21 is constant no matter the load hydraulic motor 21 rotates forwards or backwards, the load oil path integrated piece 35 is connected with an oil source assembly 33, the oil source assembly 33 is connected with a main oil path integrated piece 34, a pipeline heater 36 is arranged in the oil source assembly 33, and the pipeline heater 36 can heat the oil to a required temperature.
Referring to fig. 1, an overflow port is installed on a hydraulic motor 21, a second pressure transmitter 19 and a second temperature sensor 22 are installed at the overflow port, and the second pressure transmitter 19 and the second temperature sensor 22 are respectively used for detecting the pressure and the temperature of overflow; the outer side of the overflow port is provided with a second gear flow meter 28, a small flow regulating valve 25 is connected between the second gear flow meter 28 and the hydraulic motor 21, and the small flow regulating valve 25 is used for regulating overflow pressure, so that according to the test requirement of the hydraulic motor 21, a second pressure transmitter 19, a second temperature sensor 22, a second gear flow meter 28 and a small flow regulating valve 25 are additionally arranged at the overflow port of the hydraulic motor 21, the model of the second pressure transmitter 19 is MPM480C0-3.5JMPaE22B1PC1G, the model of the second temperature sensor 22 is STT-C2A1B6C180DM12x1.5E3PAT2SO, internal threads G1/2 at two ends of the small flow regulating valve 25 and the model of the second gear flow meter 28 is VC02A6RS, so as to detect the overflow pressure, temperature and flow of the hydraulic motor 21, regulate the overflow pressure through the small flow regulating valve 25, simulate a working state and acquire data needing to be tested.
Claims (6)
1. Hydraulic motor test hydraulic system includes: the rack assembly comprises a hydraulic motor, a torque and rotating speed sensor is connected to the hydraulic motor, and the torque and rotating speed sensor is used for testing the torque and rotating speed of the hydraulic motor;
the system is characterized by further comprising an oil tank, wherein the oil tank is used for providing oil for the system;
the driving system is used for driving the hydraulic motor to be tested;
the load system is used for providing load for the hydraulic motor to be tested;
and the heating circulating system is used for supplying and supplementing oil liquid for the load system.
2. The hydraulic motor testing hydraulic system of claim 1, wherein the driving system comprises a main oil circuit integrated part and a tilted axial plunger pump, the tilted axial plunger pump is electrically connected with a variable frequency variable speed motor, the variable frequency variable speed motor is used for driving the tilted axial plunger pump, and one end of the tilted axial plunger pump is connected with a high-pressure plate type filter;
the high-pressure plate type filter is used for filtering an oil source provided by the inclined shaft type axial plunger pump, and a first tubular check valve is connected between the inclined shaft type axial plunger pump and the high-pressure plate type filter; the other end of the high-pressure plate type filter is connected with an electro-hydraulic reversing valve;
the electro-hydraulic reversing valve is used for controlling the steering of the filtering oil source.
3. The hydraulic motor testing hydraulic system as claimed in claim 2, wherein one end of the electro-hydraulic directional valve, which is far away from the hydraulic motor, is connected with a first gear flow meter, the other end of the first gear flow meter is connected with an electric control ball valve, and a brazed plate heat exchanger is connected between the electric control ball valve and an oil tank.
4. The hydraulic motor testing system of claim 1, wherein a load oil circuit integrated piece is arranged in the load system, and the load oil circuit integrated piece comprises a proportional overflow valve which is used for setting the oil pressure of the hydraulic motor;
and a plurality of plate-type check valves are connected between the hydraulic motor and the proportional overflow valve and are used for controlling the flow direction of inlet and outlet oil of the hydraulic motor to be unchanged.
5. The hydraulic motor testing hydraulic system of claim 4, wherein an oil supply assembly is connected to the load oil circuit manifold and is connected to the main oil circuit manifold.
6. The hydraulic motor testing hydraulic system of claim 1, wherein an overflow port is installed on the hydraulic motor, a second pressure transmitter and a second temperature sensor are installed at the overflow port, and the second pressure transmitter and the second temperature sensor are respectively used for detecting the pressure and the temperature of overflow;
and a second gear flow meter is arranged on the outer side of the overflow port, a small flow regulating valve is connected between the second gear flow meter and the hydraulic motor, and the small flow regulating valve is used for regulating overflow pressure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121009713.6U CN214945442U (en) | 2021-05-12 | 2021-05-12 | Hydraulic motor test hydraulic system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121009713.6U CN214945442U (en) | 2021-05-12 | 2021-05-12 | Hydraulic motor test hydraulic system |
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| CN214945442U true CN214945442U (en) | 2021-11-30 |
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| CN202121009713.6U Active CN214945442U (en) | 2021-05-12 | 2021-05-12 | Hydraulic motor test hydraulic system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116398504A (en) * | 2023-04-06 | 2023-07-07 | 国家智能制造装备产品质量监督检验中心(浙江) | Test platform for fluctuation of outlet pressure of hydraulic motor |
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2021
- 2021-05-12 CN CN202121009713.6U patent/CN214945442U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116398504A (en) * | 2023-04-06 | 2023-07-07 | 国家智能制造装备产品质量监督检验中心(浙江) | Test platform for fluctuation of outlet pressure of hydraulic motor |
| CN116398504B (en) * | 2023-04-06 | 2023-10-31 | 国家智能制造装备产品质量监督检验中心(浙江) | Test platform for fluctuation of outlet pressure of hydraulic motor |
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