CN115126687A - Hydraulic pump detection system - Google Patents
Hydraulic pump detection system Download PDFInfo
- Publication number
- CN115126687A CN115126687A CN202210741177.1A CN202210741177A CN115126687A CN 115126687 A CN115126687 A CN 115126687A CN 202210741177 A CN202210741177 A CN 202210741177A CN 115126687 A CN115126687 A CN 115126687A
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- hydraulic pump
- valve
- temperature
- oil tank
- oil
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- 238000001514 detection method Methods 0.000 title claims abstract description 41
- 230000010349 pulsation Effects 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims description 29
- 238000010438 heat treatment Methods 0.000 claims description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 7
- 239000003921 oil Substances 0.000 claims 18
- 238000005461 lubrication Methods 0.000 claims 3
- 229910001873 dinitrogen Inorganic materials 0.000 claims 1
- 230000008676 import Effects 0.000 claims 1
- 239000010729 system oil Substances 0.000 claims 1
- 230000001050 lubricating effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/007—Simulation or modelling
Abstract
The invention discloses a hydraulic pump detection system, which comprises an oil tank, a load loading system and a power system, wherein an oil inlet of a hydraulic pump to be detected is connected with the oil tank, an oil outlet of the hydraulic pump to be detected is connected with an inlet of the load loading system, an outlet of the load loading system is connected with the oil tank, the power system drives the hydraulic pump to be detected to rotate, the hydraulic pump detection system also comprises a pressurization system and a temperature control system which are connected with the oil tank and used for adjusting the pressure and the temperature in the oil tank, and a pipeline connected with each system is provided with a plurality of temperature sensors, a plurality of pressure pulsation sensors and a flowmeter. Through each data parameter in temperature sensor, pressure pulsation sensor and the flowmeter detecting system, can carry out the wide temperature domain performance detection of high accuracy of high rotational speed to the hydraulic pump, multiple performance detection can once accomplish, and it is swift convenient to use, and is high-efficient stable, safe and reliable.
Description
Technical Field
The invention relates to the field of hydraulic pumps, in particular to a hydraulic pump detection system.
Background
The hydraulic pump is the hydraulic supply original of hydraulic pressure governing system, directly influences the function realization and the dynamic quality of hydraulic pressure governing system. In modern industry, the requirements of the working environment of a hydraulic system are more and more strict, and the performance indexes of high temperature, high rotating speed, high reliability and the like are continuously improved, so that the requirements on the performance of a hydraulic pump used by the hydraulic system are more and more high.
In order to improve the performance of the hydraulic pump, research on the performance improvement of the industrial hydraulic pump at high temperature and high rotating speed is developed in a dispute, so that the safety and reliability of the pump and the system composition thereof are improved. Therefore, research and development of a performance testing system for a hydraulic pump under high rotation speed, wide temperature range and high precision are becoming more and more urgent.
At present, aiming at the defect that a test system of a hydraulic pump is especially deficient under the conditions of high temperature and high rotating speed, the test means is mainly that the test and verification are carried out along with the whole machine, and the requirement of the whole machine is considered to be met when the whole machine meets the requirement. However, the specific state of the hydraulic pump cannot be accurately measured and verified, and once a problem occurs, the problem cannot be easily reproduced, analyzed and solved.
Therefore, how to provide a hydraulic pump detection system for performing a high-rotation-speed wide-temperature-range performance test on a hydraulic pump is a technical problem that needs to be solved by those skilled in the art at present.
Disclosure of Invention
The invention aims to provide a hydraulic pump detection system which can detect the high-speed, wide-temperature-range and high-precision performance of a hydraulic pump, can complete multiple performance detections at one time, and is quick and convenient to use, efficient, stable, safe and reliable.
In order to solve the technical problems, the invention provides a hydraulic pump detection system which comprises an oil tank, a load loading system and a power system, wherein an oil inlet of a hydraulic pump to be detected is connected with the oil tank, an oil outlet of the hydraulic pump to be detected is connected with an inlet of the load loading system, an outlet of the load loading system is connected with the oil tank, the power system drives the hydraulic pump to be detected to rotate, the hydraulic pump detection system also comprises a pressurization system and a temperature control system which are connected with the oil tank and used for adjusting the pressure and the temperature in the oil tank, and a plurality of temperature sensors, a plurality of pressure pulsation sensors and a flowmeter are arranged on a pipeline connected with each system.
Preferably, the load loading system comprises a pressure control two-way cartridge valve, a pressure control cover plate and a proportional pressure control valve, an inlet and an outlet of the pressure control two-way cartridge valve are respectively connected with the hydraulic pump to be tested and the oil tank, a control port of the pressure control two-way cartridge valve is connected with the pressure control cover plate and the proportional pressure control valve, and the pressure control two-way cartridge valve is connected with a load overflow valve in parallel.
Preferably, the power system comprises a driving motor and a reduction gearbox, a torque sensor is installed between the motor and the reduction gearbox, and the reduction gearbox is connected with the hydraulic pump to be tested.
Preferably, the pressurization system comprises a nitrogen cylinder, a nitrogen pressure reducing valve, an air filter and a pneumatic proportional pressure reducing valve which are sequentially connected in series, and an outlet of the pneumatic proportional pressure reducing valve is connected with the oil tank.
Preferably, the temperature control system comprises a temperature control motor, a temperature control pump, a cooling heat exchanger and a water cooler, the temperature control motor drives the temperature control pump to rotate, an oil inlet of the temperature control pump is connected with the oil tank, an oil outlet of the temperature control pump is connected with the oil tank through the cooling heat exchanger, and the water cooler is connected with the cooling heat exchanger.
Preferably, the temperature control system further comprises a heating heat exchanger, a temperature control reversing valve and a high-temperature heat conduction oil system, an oil outlet of the temperature control pump is connected with an inlet of the temperature control reversing valve, one outlet of the temperature control reversing valve is connected with the cooling heat exchanger, the other outlet of the temperature control reversing valve is connected with the heating heat exchanger, the heating heat exchanger is connected with the oil tank, and the high-temperature heat conduction oil system is connected with the heating heat exchanger.
Preferably, the load loading system further comprises a valve block, the water cooling machine is connected with a cooling channel of the valve block, the power system further comprises a lubricating system connected with the reduction gearbox, and the water cooling machine is connected with a lubricating heat exchanger of the lubricating system.
Preferably, the oil tank is connected with the temperature sensor, the pressure sensor, a safety valve, an exhaust valve and a drain valve.
Preferably, the hydraulic pump system further comprises a standby loading system, an oil outlet of the hydraulic pump to be tested is connected with an inlet of the standby loading system, an outlet of the standby loading system is connected with the oil tank, and switch valves are arranged at an inlet of the load loading system and an inlet of the standby loading system.
Preferably, the backup loading system comprises a proportional flow valve and a backup overflow valve which are connected in parallel with each other.
The invention provides a hydraulic pump detection system which comprises an oil tank, a load loading system and a power system, wherein an oil inlet of a hydraulic pump to be detected is connected with the oil tank, an oil outlet of the hydraulic pump to be detected is connected with an inlet of the load loading system, an outlet of the load loading system is connected with the oil tank, the power system drives the hydraulic pump to be detected to rotate, the hydraulic pump detection system also comprises a pressurization system and a temperature control system which are connected with the oil tank and used for adjusting the pressure and the temperature in the oil tank, and a pipeline for connecting all the systems is provided with a plurality of temperature sensors, a plurality of pressure pulsation sensors and a flowmeter.
The hydraulic pump to be detected is rotated through the power system, oil in the oil tank is input into the load loading system, the actual working condition is simulated through the load loading system, the high-speed, wide-temperature-range and high-precision performance detection can be carried out on the hydraulic pump through various data parameters in the temperature sensor, the pressure pulsation sensor and the flowmeter detection system, the multiple performance detection can be completed at one time, and the hydraulic pump to be detected is rapid and convenient to use, efficient, stable, safe and reliable.
Drawings
Fig. 1 is a hydraulic schematic diagram of an embodiment of a hydraulic pump detection system according to the present invention.
The device comprises an oil tank 1, a hydraulic pump 2 to be tested, a temperature sensor 3, a pressure sensor 4, a pressure pulsation sensor 5, a flowmeter 6, a pressure control two-way cartridge valve 7, a pressure control cover plate 8, a proportional pressure control valve 9, a load overflow valve 10, a driving motor 11, a reduction gearbox 12, a torque sensor 13, a nitrogen cylinder 14, a nitrogen pressure reducing valve 15, an air filter 16, a pneumatic proportional pressure reducing valve 17, a temperature control motor 18, a temperature control pump 19, a cooling heat exchanger 20, a water cooler 21, a heating heat exchanger 22, a temperature control reversing valve 23, a high-temperature heat conducting oil system 24, a valve block 25, a lubricating system 26, a proportional flow valve 27, a standby overflow valve 28, a metal hose 29, a hydraulic filter 30 and a three-way ball valve 31.
Detailed Description
The core of the invention is to provide a hydraulic pump detection system which can detect the high-speed, wide-temperature-range and high-precision performance of a hydraulic pump, can complete multiple performance detections at one time, and is quick and convenient to use, efficient, stable, safe and reliable.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, fig. 1 is a hydraulic schematic diagram of an embodiment of a hydraulic pump detection system according to the present invention.
The invention provides a hydraulic pump detection system, which comprises an oil tank 1, a load loading system and a power system, wherein the load loading system is used for simulating the load force of a hydraulic pump 2 to be detected under the actual working condition, an oil inlet of the hydraulic pump 2 to be detected is connected with the oil tank 1, an oil outlet of the hydraulic pump 2 to be detected is connected with an inlet of the load loading system, an outlet of the load loading system is connected with the oil tank 1, the power system is connected with the hydraulic pump 2 to be detected and drives the hydraulic pump 2 to be detected to rotate, the hydraulic pump detection system further comprises a pressurization system and a temperature control system which are connected with the oil tank 1 and used for adjusting the pressure and the temperature in the oil tank 1, meanwhile, a plurality of temperature sensors 3, a plurality of pressure sensors 4, a pressure pulsation sensor 5 and a flowmeter 6 are arranged on a pipeline connected with each system to obtain the internal parameters of the system, and a control system is arranged for controlling the whole hydraulic system, including data acquisition, temperature control, valve opening and closing, data printing, and the like.
In the detection process, the hydraulic pump 2 to be detected is installed in the system, the hydraulic pump 2 to be detected is rotated through the power system, oil in the oil tank 1 is input into the load loading system, the load loading system simulates the actual working condition, and the temperature sensor 3, the pressure sensor 4, the pressure pulsation sensor 5 and the flowmeter 6 are used for detecting various data parameters in the system, so that the high-speed, wide-temperature-range and high-precision performance detection can be performed on the hydraulic pump.
Specifically, the load loading system comprises a pressure control two-way cartridge valve 7, a pressure control cover plate 8 and a proportional pressure control valve 9, wherein an inlet and an outlet of the pressure control two-way cartridge valve 7 are respectively connected with a hydraulic pump 2 to be tested and an oil tank 1, a control port of the pressure control two-way cartridge valve 7 is connected with the pressure control cover plate 8 and the proportional pressure control valve 9, the three components are matched to act to realize accurate simulation of a load, and meanwhile, in order to improve safety, the pressure control two-way cartridge valve 7 can be connected with a load overflow valve 10 in parallel.
Furthermore, a metal hose 29, a high-pressure ball valve and a hydraulic filter 30 are sequentially connected in series between the hydraulic pump 2 to be tested and the load loading system, so that the safety and reliability of the system are improved.
In the hydraulic pump detection system provided by the specific embodiment of the invention, the power system comprises a driving motor 11 and a reduction gearbox 12, a torque sensor 13 is installed between the motor and the reduction gearbox 12 through a coupler to obtain torque information of the system, the reduction gearbox 12 is connected with the hydraulic pump 2 to be detected, and the driving motor 11 drives the hydraulic pump 2 to be detected to rotate through the reduction gearbox 12.
Preferably, the pressurization system comprises a nitrogen bottle 14, a nitrogen pressure reducing valve 15, an air filter 16 and a pneumatic proportional pressure reducing valve 17 which are sequentially connected in series, an outlet of the pneumatic proportional pressure reducing valve 17 is connected with the oil tank 1, nitrogen is input into the oil tank 1 through the components, the pressure in the oil tank 1 is increased to meet the detection requirement, a reversing valve communicated with the outside can be further arranged at the tail end of the pipeline, the pressure is emptied when needed, and the safety is improved.
The temperature control system comprises a temperature control motor 18, a temperature control pump 19, a cooling heat exchanger 20 and a water cooler 21, wherein the temperature control motor 18 drives the temperature control pump 19 to rotate, an oil inlet of the temperature control pump 19 is connected with the oil tank 1, an oil outlet of the temperature control pump 19 is connected with the oil tank 1 through the cooling heat exchanger 20, and the water cooler 21 is connected with the cooling heat exchanger 20. When the oil temperature needs to be reduced, the temperature control motor 18 is started to drive the temperature control pump 19 to rotate, so that oil in the oil tank 1 circulates in a pipeline of a temperature control system, meanwhile, the oil can pass through the cooling heat exchanger 20 in the circulating process, the cooling heat exchanger 20 is subjected to heat exchange and cooling through the water cooling machine 21, and finally the oil in the oil tank 1 is cooled.
Furthermore, the temperature control system further comprises a heating heat exchanger 22, a temperature control reversing valve 23 and a high-temperature heat conduction oil system 24, an oil outlet of the temperature control pump 19 is connected with an inlet of the temperature control reversing valve 23, one outlet of the temperature control reversing valve 23 is connected with the cooling heat exchanger 20, the other outlet of the temperature control reversing valve 23 is connected with the heating heat exchanger 22, the heating heat exchanger 22 is connected with the oil tank 1, and the high-temperature heat conduction oil system 24 is connected with the heating heat exchanger 22. When needing to cool down, temperature-sensing reversing valve 23 makes cooling heat exchanger 20 insert the return circuit, and the cooling mode is as above, when needing to heat up, temperature-sensing reversing valve 23 makes heating heat exchanger 22 insert the return circuit, makes the fluid in the oil tank 1 at temperature control system's pipeline inner loop, and fluid can pass through heating heat exchanger 22 at the circulation in-process simultaneously to carry out the heat transfer intensification to heating heat exchanger 22 through high temperature heat conduction oil system 24, finally realize the intensification to fluid in the oil tank 1.
Specifically, a metal hose 29 is arranged at an inlet and an outlet of the temperature control pump 19, a plurality of hydraulic filters 30 are arranged between the temperature control pump 19 and the temperature control reversing valve 23, wherein each heat exchanger is a plate heat exchanger, the temperature control pump 19 is a high-temperature gear pump, the temperature control motor 18 is an explosion-proof three-phase asynchronous motor, the temperature control reversing valve 23 is an explosion-proof electromagnetic reversing valve, and the high-temperature heat conducting oil system 24 comprises an expansion oil tank, a heating motor, a heating pump and the like, or types of all parts are adjusted according to conditions, and the protection range of the invention is within the protection range of the invention.
In order to realize system temperature reduction, the load loading system further comprises a valve block 25, the water cooling machine 21 is connected with a cooling channel of the valve block 25 through a pipeline shunting part, the power system further comprises a lubricating system 26 connected with the reduction gearbox 12, the water cooling machine 21 is connected with a lubricating heat exchanger of the lubricating system 26 through the pipeline shunting part, and a plurality of switch valves are arranged at an outlet of the water cooling machine 21, so that controllability is improved.
On the basis of the hydraulic pump detection system provided by each specific embodiment, the hydraulic pump detection system further comprises a standby loading system, the standby loading system is not started generally, after a new product is developed, the standby loading system is started to be used for testing a newly developed hydraulic pump 2 to be tested, the test bench can be utilized to the maximum extent, the standby loading system is connected with the load loading system in parallel, namely, an oil outlet of the hydraulic pump 2 to be tested is connected with an inlet of the standby loading system at the same time, an outlet of the standby loading system is connected with the oil tank 1, and switch valves are arranged at an inlet of the load loading system and an inlet of the standby loading system to control different loading systems to be connected into oil paths. Specifically, the backup charging system includes a proportional flow valve 27 and a backup excess flow valve 28 connected in parallel with each other. Meanwhile, a three-way ball valve 31, a flowmeter 6 and a one-way valve are sequentially arranged between the load loading system and the oil tank 1 to realize flow detection of the load loading system, and similarly, a three-way ball valve 31, a flowmeter 6 and a one-way valve are sequentially arranged between the standby loading system and the oil tank 1 to realize flow detection of the standby loading system.
Further, the oil tank 1 is connected with a temperature sensor 3, a pressure sensor 4, a safety valve, an exhaust valve and a drain valve. A pressure sensor 4 and an explosion-proof pressure pulsation sensor 5 are arranged between an oil outlet of the hydraulic pump 2 to be tested and the load loading system, and a pressure sensor 4 and a temperature sensor 3 are arranged between an oil return port of the hydraulic pump 2 to be tested and the oil tank 1. The temperature sensor 3 is an explosion-proof thermal resistor, the pressure sensor 4 is a pressure transmitter, or the types and the installation positions of all the components are adjusted according to the conditions, and the pressure sensors 4 and the like are arranged on a plurality of pipelines, which are all within the protection scope of the invention.
The hydraulic pump detection system provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a hydraulic pump detection system, its characterized in that, includes oil tank (1), load loading system and driving system, and the oil inlet of the hydraulic pump (2) that awaits measuring is connected oil tank (1), the oil-out of the hydraulic pump (2) that awaits measuring is connected the import of load loading system, the exit linkage of load loading system oil tank (1), driving system drive the hydraulic pump (2) that awaits measuring rotates, still including connecting the turbocharging system and the temperature control system of oil tank (1) are used for adjusting pressure and temperature in the oil tank (1), are provided with a plurality of temperature sensor (3), a plurality of pressure sensor (4), pressure pulsation sensor (5) and flowmeter (6) on the pipeline of connecting each system.
2. The hydraulic pump detection system according to claim 1, characterized in that the load loading system comprises a pressure control two-way cartridge valve (7), a pressure control cover plate (8) and a proportional pressure control valve (9), wherein an inlet and an outlet of the pressure control two-way cartridge valve (7) are respectively connected with the hydraulic pump (2) to be detected and the oil tank (1), a control port of the pressure control two-way cartridge valve (7) is connected with the pressure control cover plate (8) and the proportional pressure control valve (9), and the pressure control two-way cartridge valve (7) is connected with a load overflow valve (10) in parallel.
3. The hydraulic pump detection system of claim 2, wherein the power system comprises a driving motor (11) and a reduction gearbox (12), a torque sensor (13) is installed between the motor and the reduction gearbox (12), and the reduction gearbox (12) is connected with the hydraulic pump (2) to be detected.
4. A hydraulic pump detection system according to claim 3, characterized in that the pressurization system comprises a nitrogen gas cylinder (14), a nitrogen pressure reducing valve (15), an air filter (16) and a pneumatic proportional pressure reducing valve (17) connected in series in sequence, and an outlet of the pneumatic proportional pressure reducing valve (17) is connected with the oil tank (1).
5. The hydraulic pump detection system as claimed in claim 4, wherein the temperature control system comprises a temperature control motor (18), a temperature control pump (19), a cooling heat exchanger (20) and a water cooling machine (21), the temperature control motor (18) drives the temperature control pump (19) to rotate, an oil inlet of the temperature control pump (19) is connected with the oil tank (1), an oil outlet of the temperature control pump (19) is connected with the oil tank (1) through the cooling heat exchanger (20), and the water cooling machine (21) is connected with the cooling heat exchanger (20).
6. The hydraulic pump detection system as claimed in claim 5, wherein the temperature control system further comprises a heating heat exchanger (22), a temperature-controlled reversing valve (23) and a high-temperature heat-conducting oil system (24), an oil outlet of the temperature-controlled pump (19) is connected with an inlet of the temperature-controlled reversing valve (23), one outlet of the temperature-controlled reversing valve (23) is connected with the cooling heat exchanger (20), the other outlet of the temperature-controlled reversing valve (23) is connected with the heating heat exchanger (22), the heating heat exchanger (22) is connected with the oil tank (1), and the high-temperature heat-conducting oil system (24) is connected with the heating heat exchanger (22).
7. The hydraulic pump detection system as claimed in claim 6, wherein the load loading system further comprises a valve block (25), the water-cooled machine (21) is connected with a cooling channel of the valve block (25), the power system further comprises a lubrication system (26) connected with the reduction gearbox (12), and the water-cooled machine (21) is connected with a lubrication heat exchanger of the lubrication system (26).
8. The hydraulic pump detection system according to claim 1, characterized in that the temperature sensor (3), the pressure sensor (4), a safety valve, an exhaust valve and a drain valve are connected to the oil tank (1).
9. The hydraulic pump detection system according to any one of claims 1 to 8, characterized by further comprising a backup loading system, wherein an oil outlet of the hydraulic pump (2) to be detected is connected with an inlet of the backup loading system, an outlet of the backup loading system is connected with the oil tank (1), and an inlet of the load loading system and an inlet of the backup loading system are both provided with a switch valve.
10. The hydraulic pump testing system of claim 9, wherein the backup charging system includes a proportional flow valve (27) and a backup spill valve (28) in parallel with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210741177.1A CN115126687A (en) | 2022-06-28 | 2022-06-28 | Hydraulic pump detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210741177.1A CN115126687A (en) | 2022-06-28 | 2022-06-28 | Hydraulic pump detection system |
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| CN115126687A true CN115126687A (en) | 2022-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210741177.1A Pending CN115126687A (en) | 2022-06-28 | 2022-06-28 | Hydraulic pump detection system |
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| CN (1) | CN115126687A (en) |
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| CN105697353A (en) * | 2016-01-21 | 2016-06-22 | 燕山大学 | Comprehensive testing device for fault simulation and state detection for hydraulic pump under variable working condition |
| CN109026905A (en) * | 2018-10-10 | 2018-12-18 | 湖南金润电液控制系统有限公司 | A kind of versatility hydraulic system Testing Platform |
| CN110985367A (en) * | 2019-12-17 | 2020-04-10 | 之江实验室 | High-speed hydraulic pump performance test device |
| CN211288060U (en) * | 2020-01-02 | 2020-08-18 | 陕西大鹏航空工程有限公司 | Fuel pump test oil way system and fuel pump test bed |
| CN212744294U (en) * | 2020-08-14 | 2021-03-19 | 北京航天星汉科技有限公司 | High-speed high-pressure pump test bench |
| CN112983800A (en) * | 2021-03-19 | 2021-06-18 | 北京航空航天大学 | Pump environment simulation and test system for electro-hydrostatic actuator |
| CN214945441U (en) * | 2021-05-07 | 2021-11-30 | 西安凯德液压机电有限责任公司 | Hydraulic pump test system for aviation |
-
2022
- 2022-06-28 CN CN202210741177.1A patent/CN115126687A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4044786A (en) * | 1976-07-26 | 1977-08-30 | Eaton Corporation | Load sensing steering system with dual power source |
| US4663936A (en) * | 1984-06-07 | 1987-05-12 | Eaton Corporation | Load sensing priority system with bypass control |
| DE4108915A1 (en) * | 1991-03-19 | 1992-09-24 | Bosch Gmbh Robert | Hydraulic medium supply device for servo steering - has variable displacement pump for normal supply, and smaller volume constant pump |
| US20040230384A1 (en) * | 2003-05-13 | 2004-11-18 | Haynes Howard D. | Electric fuel pump condition monitor system using electrical signature analysis |
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| CN109026905A (en) * | 2018-10-10 | 2018-12-18 | 湖南金润电液控制系统有限公司 | A kind of versatility hydraulic system Testing Platform |
| CN110985367A (en) * | 2019-12-17 | 2020-04-10 | 之江实验室 | High-speed hydraulic pump performance test device |
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| CN112983800A (en) * | 2021-03-19 | 2021-06-18 | 北京航空航天大学 | Pump environment simulation and test system for electro-hydrostatic actuator |
| CN214945441U (en) * | 2021-05-07 | 2021-11-30 | 西安凯德液压机电有限责任公司 | Hydraulic pump test system for aviation |
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