A blue oil motor test bench

Abstract

The utility model discloses a kind of blue oil motor test benches, involving including frame, operation platform, loading hydraulic motor, transfer case, heat preservation box, oil source assembly, protective cover and first support, the upper end of frame is provided with operation platform, the upper end of operation platform is provided with heat preservation box and protective cover, the inside of heat preservation box is provided with first support, first support is provided with the hydraulic motor to be tested on it, the inside of frame is provided with oil source assembly, the inside of protective cover is provided with transfer case, the one end of transfer case is installed with several loading hydraulic motor, source assembly is connected with several loading hydraulic motor, the output end of transfer case is drivingly connected with the hydraulic motor to be tested.The cooperative work of heat preservation box, oil source cooling system, temperature sensor and heater can accurately simulate-60 ℃~135 ℃ temperature environment, meet the high and low temperature working requirements of blue oil in aerospace hydraulic system, ensure that the performance of hydraulic motor under different temperature conditions is accurately tested.

Description

Technical Field

[0001] This utility model relates to the field of motor production and testing technology, and in particular to a blue oil motor test bench. Background Technology

[0002] In the aerospace field, hydraulic systems play a crucial role, and their stability and reliability are directly related to flight safety. Blue oil, namely phosphate ester-based flame-retardant hydraulic oil, has become a key medium in aerospace hydraulic systems due to its high flame retardancy. Hydraulic motors, as the core actuators of aerospace hydraulic systems, need to maintain stable performance under extremely harsh operating conditions, such as pulse pressure and high-frequency cycling. These conditions place extremely high demands on the performance of hydraulic motors, and their performance directly affects the operational effectiveness of aerospace equipment.

[0003] However, traditional hydraulic motor test benches are mostly designed for use with ordinary hydraulic oil and in normal temperature environments. When faced with a medium like blue oil, traditional test benches reveal several shortcomings. First, blue oil is corrosive, and the sealing design of traditional test benches cannot meet the corrosive sealing requirements of blue oil, easily leading to leakage. This not only affects the accuracy of test results but may also pollute the test environment and even pose safety hazards. Second, blue oil has a wide operating temperature range in aerospace hydraulic systems, requiring compliance with high-temperature (0–135℃) and high-low temperature environment simulation tests (-60℃–85℃). Traditional test benches struggle to achieve such broad and precise temperature control. Utility Model Content

[0004] The purpose of this invention is to provide a blue oil motor test bench to solve the above-mentioned technical problems.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A blue oil motor test bench includes a frame, an operating platform, a loading hydraulic motor, a transfer case, an insulation box, an oil source component, a protective cover, and a first support. The operating platform is located at the upper end of the frame, and the insulation box and the protective cover are located at the upper end of the operating platform. The first support is located inside the insulation box, and the hydraulic motor under test is mounted on the first support. The oil source component is located inside the frame, and the transfer case is located inside the protective cover. A plurality of loading hydraulic motors are mounted on one end of the transfer case, and the output shafts of the loading hydraulic motors are connected to the input end of the transfer case. The oil source component is connected to the plurality of loading hydraulic motors, and the output end of the transfer case is connected to the hydraulic motor under test via a transmission connection.

[0007] Preferably, the oil source assembly includes an oil tank, a motor valve block assembly, and an oil pump, wherein the oil pump is connected to the oil tank and the motor valve block assembly, and the motor valve block assembly is connected to the loading hydraulic motor.

[0008] As a further preferred embodiment, the system also includes an oil source cooling system, which is disposed inside the frame. The oil source cooling system includes a water cooler, a cooling pump, and a cold box. The cold box is disposed around the oil tank, and the cooling pump is connected to the water cooler and the cold box.

[0009] As a further preferred embodiment, the tank also includes a temperature sensor and a heater, which are disposed on the bottom wall of the tank.

[0010] As a further preferred embodiment, the tank also includes a level relay, which is provided on the side wall of the tank, and the detection electrode of the level relay extends into the tank.

[0011] Preferably, the first support includes a first T-shaped seat and a first mounting plate. The upper end of the operating platform is provided with a first sliding groove. The lower end of the first T-shaped seat is slidably disposed in the first sliding groove. The first mounting plate is disposed on one side of the first T-shaped seat. The hydraulic motor under test is mounted on the first mounting plate. The lower ends of the first T-shaped seat have first connecting plates on both sides.

[0012] As a further preferred embodiment, the system also includes a connecting shaft, a first coupling, a second coupling, and a speed and torque sensor. The output end of the hydraulic motor under test is connected to one end of the connecting shaft via the first coupling, and the other end of the connecting shaft is provided with the speed and torque sensor and the second coupling.

[0013] As a further preferred embodiment, the system also includes a speed reducer and a second support. The second support is disposed inside the protective cover, and the speed reducer is disposed on the second support. The output end of the transfer case is connected to the input end of the speed reducer, and the output end of the speed reducer is connected to the second coupling.

[0014] The above technical solution has the following advantages or beneficial effects:

[0015] (1) In this utility model, the oil tank and oil pump in the oil source component are made of stainless steel, the motor valve block component is made of carbon steel with nickel plating, and the frame is made of carbon steel with epoxy resin paint spraying. This can meet the corrosive sealing requirements of blue oil medium, avoid equipment damage and leakage caused by corrosion, and improve the service life of the equipment.

[0016] (2) In this utility model, the coordinated operation of the heat preservation box, the oil source cooling system, the temperature sensor and the heater can accurately simulate the temperature environment of -60℃ to 135℃, meet the high and low temperature working requirements of blue oil in aerospace hydraulic systems, and ensure that the performance of the hydraulic motor under different temperature conditions is accurately tested.

[0017] (3) In this utility model, the speed and torque sensor accurately collects the speed and torque data of the hydraulic motor under test in real time, providing a reliable basis for evaluating the performance of the hydraulic motor, enabling testers to understand the performance characteristics of the hydraulic motor under different working conditions, and providing strong support for the optimized design and equipment selection of aerospace hydraulic systems. Attached Figure Description

[0018] Figure 1 This utility model is a three-dimensional blue oil motor test stand. Figure 1 ;

[0019] Figure 2 This is a partial internal side view of the blue oil motor test bench in this utility model;

[0020] Figure 3 This is a partial front view of the interior of the blue oil motor test stand in this utility model;

[0021] Figure 4 This utility model is a three-dimensional blue oil motor test stand. Figure 2 ;

[0022] Figure 5 This is a front structural diagram of the blue oil motor test bench in this utility model;

[0023] Figure 6 This utility model is a three-dimensional blue oil motor test stand. Figure 3 .

[0024] In the diagram: 1. Frame; 2. Operating platform; 3. Loading hydraulic motor; 4. Transfer case; 5. Insulation box; 6. Protective cover; 7. First support; 8. Oil tank; 9. Motor valve block assembly; 10. Water cooler; 11. Cooling pump; 12. Cold box; 13. First T-shaped seat; 14. First mounting plate; 15. First slide rail; 16. First connecting plate; 17. Connecting shaft; 18. First coupling; 19. Second coupling; 20. Speed ​​and torque sensor; 21. Reducer; 22. Second support; 23. Hydraulic motor under test. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Figure 1 This utility model is a three-dimensional blue oil motor test stand. Figure 1 ; Figure 2 This is a partial internal side view of the blue oil motor test bench in this utility model; Figure 3 This is a partial front view of the interior of the blue oil motor test stand in this utility model; Figure 4 This utility model is a three-dimensional blue oil motor test stand. Figure 2 ; Figure 5 This is a front structural diagram of the blue oil motor test bench in this utility model; Figure 6 This utility model is a three-dimensional blue oil motor test stand. Figure 3 Please see. Figures 1 to 6As shown, a preferred embodiment is illustrated, illustrating a blue oil motor test bench, comprising a frame 1, an operating platform 2, a loading hydraulic motor 3, a transfer case 4, an insulation box 5, an oil source assembly, a protective cover 6, and a first support 7. The operating platform 2 is disposed at the upper end of the frame 1, and the insulation box 5 and the protective cover 6 are disposed at the upper end of the operating platform 2. The first support 7 is disposed inside the insulation box 5, and the hydraulic motor 23 to be tested is disposed on the first support 7. The oil source assembly is disposed inside the frame 1, and the transfer case 4 is disposed inside the protective cover 6. Several loading hydraulic motors 3 are mounted on one end of the transfer case 4, and the output shafts of the loading hydraulic motors 3 are connected to the input end of the transfer case 4. The oil source assembly is connected to the several loading hydraulic motors 3, and the output end of the transfer case 4 is connected to the hydraulic motor 23 to be tested. Frame 1 provides a stable support structure for the entire test bench. The operating platform 2 is located on top of frame 1, supporting components such as the insulation chamber 5 and the protective cover 6. Slide rails are provided on both sides of the upper end of the operating platform 2, allowing the protective cover 6 to slide smoothly into the rails for quick installation of the cover and its internal structure. A door with a transparent observation window is located on one side of the protective cover 6 for observing the internal equipment. A transparent observation window is also provided on the side wall of the insulation chamber 5 for easy observation of its internal condition. The insulation chamber 5 effectively controls the temperature environment around the tested hydraulic motor 23, meeting the requirements of high and low temperature environment simulation tests. Multiple loading hydraulic motors 3 are installed at one end of the transfer case 4. The output shafts of the loading hydraulic motors 3 are connected to the input end of the transfer case 4, and the output end of the transfer case 4 is connected to the tested hydraulic motor 23 via a transmission connection. This structure enables dynamic loading of the tested hydraulic motor 23. The oil source assembly is located inside frame 1, providing blue oil medium to the loading hydraulic motors 3 to ensure normal test operation.

[0029] In this embodiment, the operating platform 2 can be installed on the upper part of the frame 1 by bolts or screws to ensure the flatness and stability of the operating platform 2.

[0030] The lower end of the heat preservation box 5 is open, and a sealing ring is provided at the opening to achieve a seal between it and the operating platform 2. The heat preservation box 5 can be connected to the operating platform 2 by bolts.

[0031] Furthermore, as a preferred embodiment, the oil source assembly includes an oil tank 8, a motor valve block assembly 9, and an oil pump. The oil pump connects to the oil tank 8 and the motor valve block assembly 9, and the motor valve block assembly 9 connects to the loading hydraulic motor 3. In this embodiment, the oil tank 8 and the oil pump are made of stainless steel, the motor valve block assembly 9 is made of carbon steel with a nickel-plated surface, and the frame 1 is made of carbon steel with an epoxy resin coating. This meets the corrosive sealing requirements of the blue oil medium, preventing equipment damage and leakage due to corrosion, and improving the service life of the equipment. The oil tank 8, the motor valve block assembly 9, and the oil pump are connected by stainless steel pipelines, and the motor valve block assembly 9 is connected to the loading hydraulic motor 3 by stainless steel pipelines. In this embodiment, a stainless steel oil receiving tray can be provided at the bottom of the frame 1, with a waste oil discharge port at the lowest point of the oil receiving tray to collect leaked waste oil. In this embodiment, the oil tank 8, the motor valve block assembly 9, and the oil pump allow for precise control of the delivery and pressure regulation of the blue oil, ensuring a stable and test-compliant supply of blue oil to the loading hydraulic motor 3. By precisely controlling the oil pump, stable delivery of blue oil can be achieved under different pressures, meeting the testing requirements of hydraulic motors under high-pressure conditions. Simultaneously, the motor valve block assembly 9 can finely adjust parameters such as the flow rate and pressure of the blue oil, ensuring the accuracy and stability of the blue oil parameters during testing. In this embodiment, the motor valve block assembly 9 is an existing structure. The oil pump and motor valve block assembly 9 can be connected to an external PLC controller, which controls the operation of both.

[0032] In this embodiment, the lower end of the oil tank 8 can be welded to the lower inner wall of the frame 1 or connected by bolts. The oil pump is installed on the lower inner wall of the frame 1 and located on one side of the oil tank 8. The oil pump can be fixed inside the frame 1 by bolts.

[0033] In this embodiment, the connections between the oil tank 8, the motor valve block assembly 9, and the oil pump are all sealed to ensure tight connections and eliminate the risk of leakage.

[0034] Furthermore, as a preferred embodiment, an oil source cooling system is also included. The frame 1 houses this system, which comprises a water cooler 10, a cooling pump 11, and a cold box 12. The cold box 12 is located around the oil tank 8, and the cooling pump 11 connects to the water cooler 10 and the cold box 12. The cold box 12 is tightly attached to the outer wall of the oil tank 8. This oil source cooling system effectively controls the temperature of the blue oil inside the oil tank 8, ensuring that the blue oil remains within a suitable temperature range during testing, meeting the requirements of high-temperature and high-low temperature environment simulation tests. During high-temperature testing, the coordinated operation of the water cooler 10 and the cooling pump 11 can control the temperature of the blue oil inside the oil tank 8 below 135℃, ensuring stable performance of the blue oil and not affecting the test results. The water cooler 10 and the cooling pump 11 can be connected to an external PLC controller. Both the water cooler 10 and the cooling pump 11 are placed inside the frame 1 and can be connected to the frame 1 by bolts. The cold box 12 can be welded to the outer wall of the oil tank 8.

[0035] In this embodiment, a water tank is also provided on the outside of the frame 1. The water tank is connected by a pipeline water cooler 10. The cooling pump 11, the water cooler 10 and the cold box 12 are all connected by pipelines. The arrangement of the cooling pump 11, the water cooler 10, the cold box 12 and the water tank forms a water-cooled circulation system.

[0036] Furthermore, as a preferred embodiment, a temperature sensor and a heater are also included. The heater and temperature sensor are installed on the bottom wall of the oil tank 8. The temperature sensor monitors the temperature of the blue oil in the oil tank 8 in real time, and the heater heats the blue oil based on the information fed back by the temperature sensor, achieving precise temperature control of the blue oil and further meeting the requirements of high and low temperature environment simulation tests. During low-temperature testing, if the temperature sensor detects that the blue oil temperature is too low, the heater automatically starts to raise the blue oil temperature to the set value, ensuring that the test proceeds normally. Both the temperature sensor and the heater can be connected to an external PLC controller.

[0037] Furthermore, as a preferred embodiment, a liquid level relay is also included. A liquid level relay is installed on the side wall of the oil tank 8, and its detection electrode extends into the oil tank 8 to monitor the liquid level of the blue oil in the tank 8 in real time. When the liquid level is too low, the liquid level relay issues an alarm, reminding the operator to replenish the blue oil in time to ensure the continuity and safety of the test.

[0038] Furthermore, in a preferred embodiment, the first support 7 includes a first T-shaped seat 13 and a first mounting plate 14. The upper end of the operating platform 2 has a first sliding groove 15. The lower end of the first T-shaped seat 13 is slidably disposed within the first sliding groove 15. The first mounting plate 14 is disposed on one side of the first T-shaped seat 13. The hydraulic motor 23 under test is mounted on the first mounting plate 14. The lower ends of the first T-shaped seat 13 have first connecting plates 16 on both sides. The axes of the first mounting plate 14, the first T-shaped seat 13, the connecting shaft 17, and the output shaft of the hydraulic motor 23 under test are all located on the same straight line, with a coaxiality error of less than φ0.2mm. The first mounting plate 14 is bolted to the first T-shaped seat 13, and the first mounting plate 14 is bolted to the hydraulic motor 23 under test. The first slide groove 15 is a T-shaped groove, allowing the first T-shaped seat 13 to slide within it, facilitating adjustment of its position. The first connecting plate 16 has first bolt holes for bolt installation, and several second bolt holes are provided along the length of the first slide groove 15 on both sides for bolt engagement, facilitating the fixing of the first support 7. Further, as a preferred embodiment, the system also includes a connecting shaft 17, a first coupling 18, a second coupling 19, and a speed and torque sensor 20. The output end of the hydraulic motor 23 under test is connected to one end of the connecting shaft 17 via the first coupling 18, and the other end of the connecting shaft 17 is equipped with the speed and torque sensor 20 and the second coupling 19. The speed and torque sensor 20 can monitor the speed and torque data of the hydraulic motor 23 under test in real time, providing accurate data for evaluating the performance of the hydraulic motor.

[0039] Furthermore, as a preferred embodiment, it also includes a speed reducer 21 and a second support 22. The second support 22 is located inside the protective cover 6, and the speed reducer 21 is mounted on the second support 22. The output end of the transfer case 4 is connected to the input end of the speed reducer 21, and the output end of the speed reducer 21 is connected to the second coupling 19. In this embodiment, the structure of the second support 22 is the same as that of the first support 7, and will not be repeated here. The speed reducer 21 is connected to the mounting plate in the second support 22 by bolts. The speed reducer 21 allows adjustment of the output speed and torque of the transfer case 4, more accurately simulating the working conditions of the hydraulic motor in actual operation. In this embodiment, a second sliding groove that mates with the second support 22 is provided at the upper end of the operating platform 2. The connecting plate in the second support 22 can also be connected and fixed to the operating platform 2 by bolts.

[0040] In this embodiment, the tested hydraulic motor 23 can be connected to an external hydraulic station. The external hydraulic station has the functions of adjusting the supply and return oil pressure of the tested hydraulic motor 23 and switching the oil supply direction. It has an oil suction / replenishment function, the function of adjusting the loading pressure of the loading device, and the function of controlling the on / off of each oil supply circuit. It can also detect parameters such as pressure, temperature, and flow rate of each oil circuit.

[0041] During use, first connect the power supply, start the oil pump, and check if the blue oil delivery is normal. Adjust the pressure and flow rate of the blue oil through the motor valve block assembly 9 to meet the test requirements. Start the oil source cooling system, monitor the blue oil temperature in the oil tank 8 through the temperature sensor, and adjust the working status of the water cooler 10 and the heater to bring the blue oil temperature to the set value. Observe the liquid level relay to ensure that it can accurately monitor the blue oil level. Start the loading hydraulic motor 3, and adjust the speed and torque of the hydraulic motor 23 under test through the transfer case 4 and the reducer 21 to simulate different working conditions for testing. Collect the speed and torque data of the hydraulic motor 23 under test in real time through the speed and torque sensor 20, record the test results, and evaluate the performance of the hydraulic motor 23 under test.

[0042] The above description is only a preferred embodiment of this utility model and is not intended to limit the scope of this utility model.

[0043] The implementation methods and scope of protection of this type should be readily apparent to those skilled in the art.

[0044] All equivalent substitutions and obvious substitutions made based on the description and illustrations of this utility model.

[0045] All solutions obtained by changing the present invention should be included within the protection scope of this utility model.

Claims

1. A blue oil motor test bench, characterized in that, The device includes a frame, an operating platform, a loading hydraulic motor, a transfer case, an insulation box, an oil source assembly, a protective cover, and a first support. The operating platform is located at the upper end of the frame, and the insulation box and the protective cover are located at the upper end of the operating platform. The first support is located inside the insulation box, and the hydraulic motor under test is mounted on the first support. The oil source assembly is located inside the frame, and the transfer case is located inside the protective cover. Several loading hydraulic motors are mounted on one end of the transfer case, and the output shafts of the loading hydraulic motors are connected to the input end of the transfer case. The oil source assembly is connected to the several loading hydraulic motors, and the output end of the transfer case is connected to the hydraulic motor under test.

2. The blue oil motor test bench as described in claim 1, characterized in that, The oil source assembly includes an oil tank, a motor valve block assembly, and an oil pump. The oil pump is connected to the oil tank and the motor valve block assembly, and the motor valve block assembly is connected to the loading hydraulic motor.

3. The blue oil motor test bench as described in claim 2, characterized in that, It also includes an oil source cooling system, which is installed inside the frame. The oil source cooling system includes a water cooler, a cooling pump, and a cold box. The cold box is installed around the oil tank, and the cooling pump is connected to the water cooler and the cold box.

4. The blue oil motor test bench as described in claim 2, characterized in that, It also includes a temperature sensor and a heater, which are installed on the bottom wall of the oil tank.

5. The blue oil motor test bench as described in claim 2, characterized in that, It also includes a liquid level relay, which is provided on the side wall of the oil tank, and the detection electrode of the liquid level relay extends into the oil tank.

6. The blue oil motor test bench as described in claim 1, characterized in that, The first support includes a first T-shaped seat and a first mounting plate. The upper end of the operating platform is provided with a first sliding groove. The lower end of the first T-shaped seat is slidably disposed in the first sliding groove. The first mounting plate is disposed on one side of the first T-shaped seat. The hydraulic motor under test is mounted on the first mounting plate. The lower ends of the first T-shaped seat have first connecting plates on both sides.

7. The blue oil motor test bench as described in claim 6, characterized in that, It also includes a connecting shaft, a first coupling, a second coupling, and a speed and torque sensor. The output end of the hydraulic motor under test is connected to one end of the connecting shaft through the first coupling, and the other end of the connecting shaft is provided with the speed and torque sensor and the second coupling.

8. The blue oil motor test bench as described in claim 7, characterized in that, It also includes a speed reducer and a second support. The second support is provided inside the protective cover, and the speed reducer is provided on the second support. The output end of the transfer case is connected to the input end of the speed reducer, and the output end of the speed reducer is connected to the second coupling.

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