Hydraulic transmission part monomer lubrication test system

Abstract

The utility model provides a single lubrication test system for parts of a hydraulic automatic transmission, which effectively simulates the working environment of an internal lubrication system when the transmission operates under different working conditions. According to the hydraulic automatic transmission part monomer lubrication test system of the utility model, the oil pump and the adjusting mechanism are utilized to control the flow, pressure and temperature of lubricating oil in the oil supply pipeline, the oil liquid is guided into a to-be-tested part, and the lubricating oil liquid flowing out of the to-be-tested part in a simulated transmission internal working environment is collected through the oil collection box and the oil guide cover; the mass of oil flowing out in unit time can be collected through the weighing sensor, and the lubricating capacity of the single part can be accurately and conveniently tested and judged. The device is simple in structure and high in integration degree, adopts modular combination, effectively realizes closed circulation of an oil way and a control system while improving applicability, can directly test to obtain test data and results, and is suitable for large-scale industrial use and popularization.

Description

Technical Field

[0001] The utility model belongs to the field of transmission component testing, in particular to a hydraulic transmission component monomer lubrication testing system. Background Art

[0002] Hydraulic automatic transmissions rely on an internal hydraulic system to lubricate and cool the clutch, bearings, gears, and other components. Therefore, lubrication channels are designed into components such as the housing, shafts, and clutch supports. These channels direct the oil in the lubrication circuit to the locations requiring cooling and lubrication. The diameter, number, and layout of these channels directly impact lubrication and cooling capabilities. Improper channel design can lead to localized overheating in the transmission, which can severely damage critical components and cause wear or thermal failure, compromising transmission operation.

[0003] Therefore, it is necessary to test and verify whether the lubrication capacity of individual transmission components can meet the design requirements under different working conditions. The existing technology lacks a complete testing system for the lubrication capacity of individual components inside hydraulic automatic transmissions, which makes it difficult to conduct complete and effective testing of transmission components. Utility Model Content

[0004] The purpose of the utility model is to provide a hydraulic transmission component unit lubrication test system to solve the problem in the prior art of lacking a complete test system, which makes it difficult to conduct complete and effective testing of transmission components.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A hydraulic transmission component single lubrication test system includes a component to be tested in a hydraulic transmission, an oil tank, a fixing bracket, and an oil temperature control assembly. The fixing bracket can fix the component to be tested; a heater is provided inside the oil tank;

[0007] A plurality of oil guide covers are provided above the fixed bracket, a weighing sensor is provided below the fixed bracket, and the weighing sensor is provided with oil collecting boxes having the same number as the oil guide covers;

[0008] The first oil outlet of the oil tank is connected to the first oil pump input end pipeline, and the output end of the first oil pump is connected to the input end of the component to be tested through the oil supply pipeline; the oil supply pipeline is sequentially provided with a pressure flow regulating valve, a flow sensor, a pressure sensor and a temperature sensor; the pressure flow regulating valve is also connected to the oil inlet of the oil tank through the oil drain pipeline;

[0009] The output end of the component to be tested is connected to the input end of the oil collecting box; the output end of the oil collecting box is connected to the input end of the oil return pipe, and the output end of the oil return pipe is connected to the oil inlet of the oil tank;

[0010] The oil temperature control component includes a second oil pump, the oil tank and the second oil pump are connected through a circulation pipe, a reversing valve is provided on the circulation pipe, the reversing valve is also connected to the input end of the heat exchanger, and the output end of the heat exchanger is connected to the circulation pipe.

[0011] The utility model also has the following features:

[0012] Furthermore, a pressure reducing valve is provided on the oil supply pipeline, and the pressure reducing valve is also connected to the oil drain pipeline.

[0013] Furthermore, an oil supply pipeline filter is provided on the oil supply pipeline, and the oil supply pipeline filter is located in front of the pressure reducing valve.

[0014] Furthermore, a circulation pipeline filter is provided on the circulation pipeline near the second oil outlet of the oil tank.

[0015] Furthermore, it also includes a mounting beam, and the mounting beam is detachably mounted on the fixing bracket.

[0016] Furthermore, oil guide cover holders are provided on both sides of the oil collecting box, and the oil guide cover is arranged above the fixed bracket through the oil guide cover holders;

[0017] The oil guide cover seat is lower than the upper surface of the oil collecting box.

[0018] Furthermore, an oil drain hole is provided at the lower portion of the oil collecting box, and the oil drain hole is connected to the oil return pipeline.

[0019] Furthermore, a controller is included;

[0020] The controller is connected to the weighing sensor, the pressure flow regulating valve, the flow sensor, the pressure sensor, the temperature sensor, the reversing valve and the heat exchanger respectively.

[0021] Compared with the prior art, the present invention has the following technical effects:

[0022] The present invention has built a hydraulic automatic transmission component unit lubrication test system, which effectively simulates the working environment of the internal lubrication system when the transmission is operating under different working conditions. The hydraulic automatic transmission component unit lubrication test system of the present invention uses an oil pump and an adjustment mechanism to control the flow, pressure and temperature of the lubricating oil in the oil supply pipeline, and introduces the oil into the part to be tested. The lubricating oil flowing out of the part to be tested in the simulated internal working environment of the transmission is collected through an oil collection box and an oil guide cover; the mass of the oil flowing out per unit time can be collected through a weighing sensor, so that the lubrication capacity of the component can be accurately and conveniently tested and evaluated. It has a high degree of integration and adopts a modular combination. While improving applicability, it effectively realizes the closed loop of the oil circuit and control system, and can directly test to obtain test data and results, making it suitable for large-scale use and promotion in industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a flow chart of the hydraulic automatic transmission component unit lubrication test system of the utility model;

[0024] Figure 2 This is a cross-sectional view of a single lubrication test system for hydraulic automatic transmission components of the present utility model;

[0025] Figure 3 This is a three-dimensional view of the hydraulic automatic transmission component monomer lubrication test system of the utility model.

[0026] The meaning of each number in the figure is:

[0027] 1. Parts to be tested; 2. Fuel tank; 201. Heater; 3. Fixing bracket; 4. Oil guide cover; 5. Weighing sensor; 6. Oil collecting box; 7. First oil pump; 8. Oil supply pipeline; 9. Pressure and flow regulating valve; 10. Flow sensor; 11. Pressure sensor; 12. Temperature sensor; 13. Oil drain pipeline; 14. Oil return pipeline; 15. Second oil pump; 16. Circulation pipeline; 17. Reversing valve; 18. Heat exchanger; 19. Pressure reducing valve; 20. Oil supply pipeline filter; 21. Circulation pipeline filter; 22. Mounting beam; 23. Oil guide cover holder. DETAILED DESCRIPTION

[0028] It should be noted that, unless otherwise specified, all components in the present invention are components known in the prior art. For example, the heat exchanger is a known and commonly used heat exchanger.

[0029] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent modifications made on the basis of the technical solution of this application fall within the scope of protection of the present invention.

[0030] like Figure 1-3As shown, a hydraulic transmission component single lubrication test system includes a component to be tested 1 in a hydraulic transmission, and is characterized in that it also includes an oil tank 2, a fixing bracket 3 and an oil temperature control assembly, wherein the fixing bracket 3 can fix the component to be tested 1; a heater 201 is provided inside the oil tank 2;

[0031] A plurality of oil guide covers 4 are provided above the fixed bracket 3, and a weighing sensor 5 is provided below the fixed bracket 3. The weighing sensor 5 is provided with an oil collecting box 6 having the same number as the oil guide covers 4;

[0032] In a specific embodiment of the present invention, the number of oil guide covers 4 is two, which can meet the oil guiding function; during actual operation, those skilled in the art can make adaptive adjustments to the number of oil guide covers 4 according to the actual specifications of the component 1 to be tested.

[0033] The first oil outlet of the oil tank 2 is connected to the input end of the first oil pump 7 via a pipeline. The output end of the first oil pump 7 is connected to the input end of the component to be tested 1 via an oil supply pipeline 8. The oil supply pipeline 8 is sequentially provided with a pressure flow regulating valve 9, a flow sensor 10, a pressure sensor 11, and a temperature sensor 12. The pressure flow regulating valve 9 is also connected to the oil inlet of the oil tank 2 via an oil drain pipeline 13.

[0034] The output end of the component to be tested 1 is connected to the oil collecting box 6 pipeline; the output end of the oil collecting box 6 is connected to the input end of the oil return pipeline 14, and the output end of the oil return pipeline 14 is connected to the oil inlet of the oil tank 2;

[0035] The oil temperature control assembly includes a second oil pump 15. The oil tank 2 and second oil pump 15 are connected via a circulation pipe 16. A reversing valve 17 is provided on the circulation pipe 16. One end of the reversing valve 17 is connected to the input of a heat exchanger 18, while the output of the heat exchanger 18 is connected to the circulation pipe 16. Reversing valve 17 is a conventionally selected, two-position, four-way solenoid valve that works in conjunction with the heat exchanger 18. When not in operation, the oil in the oil tank 2 passes through the heat exchanger 18 to cool it down. When in operation, the oil in the oil tank 2 passes through a branch circuit without the heat exchanger 18 to heat it up.

[0036] The first oil pump 7 and the pressure flow regulating valve 9 are used to regulate the flow and pressure in the oil supply pipeline 8 .

[0037] The flow sensor 10 , the pressure sensor 11 and the temperature sensor 12 are sequentially arranged in the oil supply pipeline according to the flow direction of the oil, and are used to measure the flow rate, pressure and temperature in the oil supply pipeline 8 respectively.

[0038] The oil collecting box 6 is arranged below the fixed bracket 3 to collect the lubricating oil sprayed from the oil channel of the component 1 to be tested; the oil guide cover 4 is installed above the fixed bracket 3 to block the splashing oil and drain it into the oil collecting box 6.

[0039] The weighing sensor 5 is used to measure the mass of the test lubricating oil collected per unit time.

[0040] According to conventional selection, a two-position, two-way solenoid valve can be provided on the oil return pipe 14 , which is used to collect oil in a closed working state and to discharge oil in an open working state.

[0041] The heater 201 is arranged inside the oil tank 2 and is used to increase the temperature of the oil inside the oil tank 2.

[0042] As a preferred solution, a pressure reducing valve 19 is provided on the oil supply pipeline 8, and the pressure reducing valve 19 is also connected to the oil drain pipeline 13, so as to further improve the pressure reducing efficiency of the entire system.

[0043] As a preferred solution, an oil supply pipeline filter 20 is provided on the oil supply pipeline 8 , and the oil supply pipeline filter 20 is located in front of the pressure reducing valve 19 .

[0044] Further preferably, a circulation pipe filter 21 is provided on the circulation pipe 16 near the second oil outlet of the oil tank 2 to filter the lubricating oil and extend the service life of the entire system.

[0045] As a preferred solution, it further includes a mounting beam 22, which is detachably mounted on the fixing bracket 3;

[0046] The mounting beam 22 is capable of supporting the component 1 to be tested.

[0047] As a specific embodiment, the mounting beam 22 is a "V"-shaped structure with strip holes on both sides. It is connected to the fixing bracket 3 by bolts, and the installation position and quantity can be adjusted according to the size of the component to be tested 1. The main function of the mounting beam 22 is to support and fix the component to be tested 1 and the components of the component to be tested 1.

[0048] As a preferred solution, oil guide cover holders 23 are provided on both sides of the oil collecting box 6, and the oil guide cover 4 is provided above the fixed bracket 3 through the oil guide cover holders 23;

[0049] The oil guide cover seat 23 is lower than the upper surface of the oil collecting box 6. It is convenient to collect all the lubricating oil drained by the oil guide cover 4.

[0050] As a preferred solution, an oil drain hole is provided at the lower portion of the oil collecting box 6 , and the oil drain hole is connected to the oil return pipe 14 , so as to facilitate the rapid discharge of the lubricating oil for informal testing.

[0051] As a preferred solution, it also includes a controller;

[0052] The controller is connected to the weighing sensor 5, the pressure flow regulating valve 9, the flow sensor 10, the pressure sensor 11, the temperature sensor 12, the reversing valve 17 and the heat exchanger 18 respectively to realize automatic control.

[0053] It should be noted that the controller is conventionally selected to be a known commonly used controller, and the controller and other components communicate with each other through known existing methods, and does not include improvements to the algorithm.

Claims

1. A hydraulic transmission component single lubrication test system, comprising a component to be tested (1) in a hydraulic transmission, characterized in that: It also includes an oil tank (2), a fixing bracket (3) and an oil temperature control assembly, wherein the fixing bracket (3) is capable of fixing the component to be tested (1); a heater (201) is provided inside the oil tank (2); A plurality of oil guide covers (4) are provided above the fixed bracket (3), a weighing sensor (5) is provided below the fixed bracket (3), and the weighing sensor (5) is provided with oil collecting boxes (6) whose number is equal to the number of the oil guide covers (4); The first oil outlet of the oil tank (2) is connected to the input end of the first oil pump (7) through a pipeline, and the output end of the first oil pump (7) is connected to the input end of the component to be tested (1) through an oil supply pipeline (8); a pressure flow regulating valve (9), a flow sensor (10), a pressure sensor (11) and a temperature sensor (12) are sequentially provided on the oil supply pipeline (8); the pressure flow regulating valve (9) is also connected to the oil inlet of the oil tank (2) through an oil drain pipeline (13); The output end of the component to be tested (1) is connected to the input end of the oil collecting box (6); the output end of the oil collecting box (6) is connected to the input end of the oil return pipe (14), and the output end of the oil return pipe (14) is connected to the oil inlet of the oil tank (2); The oil temperature control assembly includes a second oil pump (15). The oil tank (2) is connected to the second oil pump (15) through a circulation pipe (16). A reversing valve (17) is provided on the circulation pipe (16). The reversing valve (17) is also connected to the input end of the heat exchanger (18). The output end of the heat exchanger (18) is connected to the circulation pipe (16).

2. The hydraulic transmission component unit lubrication test system according to claim 1, characterized in that: The oil supply pipeline (8) is provided with a pressure reducing valve (19), and the pressure reducing valve (19) is also communicated with the oil drain pipeline (13).

3. The hydraulic transmission component unit lubrication test system according to claim 2, characterized in that: The oil supply pipeline (8) is provided with an oil supply pipeline filter (20), and the oil supply pipeline filter (20) is located in front of the pressure reducing valve (19).

4. The hydraulic transmission component unit lubrication test system according to claim 1, characterized in that: A circulation pipe filter (21) is provided on the circulation pipe (16) at a position close to the second oil outlet of the oil tank (2).

5. The hydraulic transmission component unit lubrication test system according to claim 1, characterized in that: It also includes a mounting beam (22), and the mounting beam (22) is detachably mounted on the fixing bracket (3).

6. The hydraulic transmission component unit lubrication test system according to claim 1, characterized in that: Oil guide cover holders (23) are provided on both sides of the oil collecting box (6), and the oil guide cover (4) is arranged above the fixed bracket (3) through the oil guide cover holders (23); The oil guide cover seat (23) is lower than the upper surface of the oil collecting box (6).

7. The hydraulic transmission component unit lubrication test system according to claim 1, characterized in that: An oil drain hole is provided at the lower portion of the oil collecting box (6), and the oil drain hole is communicated with the oil return pipe (14).

8. The hydraulic transmission component unit lubrication test system according to any one of claims 1 to 7, characterized in that: Also includes a controller; The controller is connected to the weighing sensor (5), the pressure flow regulating valve (9), the flow sensor (10), the pressure sensor (11), the temperature sensor (12), the reversing valve (17) and the heat exchanger (18) respectively.

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