Bearing Lubrication Test Bench

Abstract

This utility model belongs to the field of mechanical testing and bearing inspection technology. Specifically, it relates to a bearing lubrication test bench, including a main motor pump unit, a return oil motor pump unit, a filter assembly, an air cooler, an oil circuit valve assembly, a detection sensor assembly, a support oil tank assembly, and an electrical control box assembly. The support oil tank assembly consists of upper and lower support layers, with the main motor pump unit fixedly installed on the lower layer of the support oil tank assembly. In use, this utility model integrates a heater, filter assembly, air cooler, gear flow meter, particle size analyzer, pressure sensor, and temperature sensor into the test bench system. This achieves functions such as heating, filtering, cooling, detecting lubricating oil flow rate, online detection of oil particle size, pressure detection, and temperature detection. This ensures a continuous and quantitative supply of lubricating oil under various operating conditions for the bearing, aiding in the determination of various performance indicators of the bearing under different operating conditions.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical testing and bearing inspection technology, specifically, it relates to a bearing lubrication test bench. Background Technology

[0002] Bearings are the most common and fundamental support and transmission system components used in various mechanical devices, directly affecting the working condition, reliability, and durability of these devices. Through testing and experimentation, bearing performance can be tested and evaluated under actual working conditions, and the influence of various factors can be studied.

[0003] Existing bearing test benches generally only test individual sliding bearing components and cannot perform bearing tests under other mechanical behavioral conditions. In engineering practice, bearings and shafts typically occur simultaneously as friction pairs. During operation, bearings are not independent; there is an interconnection and mutual influence between the shaft and bearing. For example, in a shaft-bearing system, when the shaft is subjected to load, it deforms, causing the journal to tilt within the bearing bore. Due to the small clearance of the bearing, this significantly affects the bearing's lubrication and operating condition. Therefore, to make bearing test results more closely approximate actual operating conditions, bearing tests should consider the mutual influence between the mechanical behaviors of the shaft-bearing system under different operating conditions. Utility Model Content

[0004] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a bearing lubrication test bench.

[0005] A bearing lubrication test bench according to this utility model includes a main motor pump group, a return oil motor pump group, a filter assembly, an air cooler, an oil circuit valve group, a detection sensor assembly, a support oil tank assembly, and an electrical control box assembly. The support oil tank assembly is divided into upper and lower support layers. The main motor pump group is fixedly installed on the lower layer of the support oil tank assembly, the air cooler is fixedly installed on the left side of the lower layer of the support oil tank assembly, the return oil motor pump group is fixedly installed on the upper layer of the support oil tank assembly, the electrical control box assembly is fixedly installed on the right side of the upper layer of the support oil tank assembly, and the filter assembly is fixedly installed behind the support oil tank assembly. An oil circuit valve group is provided in the connection oil circuit of the system, and a corresponding detection sensor assembly is provided on the oil circuit valve group.

[0006] In a preferred embodiment: the main motor pump unit includes a main pump motor, a bell-shaped cover, a coupling and a helical gear oil pump. The output shaft of the main pump motor is connected to the helical gear oil pump through the coupling, and the coupling is covered with a bell-shaped cover.

[0007] In a preferred embodiment: the return oil motor pump group includes a return oil pump motor and a cycloidal oil pump. The output shaft of the return oil pump motor is connected to the cycloidal oil pump, which can draw oil from the bearing chamber of the tested product back into the oil tank.

[0008] In a preferred embodiment: the filter assembly includes a base, a filter cartridge, a filter element, a filter cover, and a differential pressure transmitter. The base is fixedly installed at the bottom of the filter cartridge, and the differential pressure transmitter is installed at the side end of the base. The filter element is installed inside the filter cartridge, and the filter cover is installed at the top of the filter cartridge. The filter cover is used to fix the upper end of the filter element and has a high exhaust port.

[0009] In a preferred embodiment: the air cooler includes a fan motor, fan blades, a helical gear pump and an air guide shroud. The air guide shroud is fixedly installed on the left end of the helical gear pump, and the fan motor is installed at the center of the air guide shroud. Several fan blades are installed in a ring on the output shaft of the fan motor.

[0010] In a preferred embodiment: the oil circuit valve group includes an oil circuit block, a safety valve, a speed regulating valve, and a check valve. The helical gear pump and the cycloidal oil pump are respectively provided with oil circuit blocks between the oil circuits connected to the oil tank. The oil circuit blocks provide channels for oil circuit connection. A safety valve is provided on the base. The helical gear pump delivers oil to the base between the oil circuit blocks and a speed regulating valve is provided. A check valve is provided in the oil pipeline of the filter assembly that delivers oil to the oil circuit blocks.

[0011] In a preferred embodiment: the detection sensor assembly includes a gear flow meter, a particle size analyzer, a pressure sensor, and a temperature sensor. The gear flow meter is installed between the speed control valve and the oil pipe of the oil manifold block. The particle size analyzer is fixedly installed on the oil tank. Pressure sensors are fixedly installed on both oil manifold blocks, and temperature sensors are fixedly installed on both oil manifold blocks.

[0012] In a preferred embodiment: the support tank assembly includes a main support, an oil tank, a level switch, a level gauge, an air filter, a heater, and a pressure gauge, and the oil tank is fixedly installed on the top of the main support.

[0013] In a preferred embodiment: a level switch is provided on the top of the oil tank, a level gauge is provided on the rear side of the oil tank, an air filter is fixedly installed on the top left side of the oil tank, a heater is installed on the left end of the oil tank, and a pressure gauge is fixedly installed on the top right side of the oil tank. The pressure gauge is a system pressure indicating instrument.

[0014] In a preferred embodiment: the electrical control box assembly includes a box body, electrical components, a touch-screen display, and control operation buttons. The electrical control components are installed inside the box body, and the touch-screen display and control operation buttons are installed on the outside of the box body.

[0015] Compared with the prior art, the present invention has the following beneficial effects: When used, this utility model integrates a heater, filter assembly, air cooler, gear flow meter, particle size analyzer, pressure sensor, and temperature sensor into the test bench system. This enables functions such as heating, filtering, cooling, detecting lubricating oil flow rate, online detection of oil particle size, pressure detection, and temperature detection. It ensures a continuous and quantitative supply of lubricating oil under various operating conditions of the bearing, facilitating the determination of various performance indicators of the bearing under different conditions. This allows the bearing installation and operation testing to perfectly match the actual operating conditions of the bearing, enabling automated data collection, execution of relevant tests, and output of the collected data. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 A three-dimensional structural schematic diagram of the bearing lubrication test bench provided in the preferred embodiment of this utility model; Figure 2 A schematic diagram of the electrical control box assembly of the bearing lubrication test bench provided in a preferred embodiment of this utility model; Figure 3 This is a front view of the bearing lubrication test bench provided in a preferred embodiment of the present invention. Figure 4 A left view of the bearing lubrication test bench provided in the preferred embodiment of this utility model; Figure 5 A top view of the bearing lubrication test bench provided in the preferred embodiment of this utility model; Figure 6 Right view of the bearing lubrication test bench provided in the preferred embodiment of this utility model; Figure 7 Rear view of the bearing lubrication test bench provided in the preferred embodiment of this utility model; In the picture: Detailed Implementation

[0017] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0018] like Figures 1-7As shown, this utility model discloses a bearing lubrication test bench, including a main motor pump group 1, a return oil motor pump group 2, a filter assembly 3, an air cooler 4, an oil circuit valve group, a detection sensor assembly, a support oil tank assembly, and an electrical control box assembly 5. The support oil tank assembly consists of upper and lower support layers. The main motor pump group 1 is fixedly installed on the bottom layer of the support oil tank assembly. The air cooler 4 is fixedly installed on the left side of the bottom layer of the support oil tank assembly. The air cooler 4 is used to cool the lubricating oil to prevent the oil temperature from rising. The return oil motor pump group 2 is fixedly installed on the top layer of the support oil tank assembly. The electrical control box assembly 5 is fixedly installed on the right side of the top layer of the support oil tank assembly. The filter assembly 3 is fixedly installed behind the support oil tank assembly. Both the main motor pump group 1 and the return oil motor pump group 2 can filter the oil through the filter assembly 3. An oil circuit valve group is set in the oil circuit of the system to protect and regulate the transport of the oil. At the same time, the oil circuit valve group is equipped with corresponding detection sensor assemblies to monitor the real-time data of the oil.

[0019] The main motor pump unit 1 includes a main pump motor 11, a bell-shaped cover 12, a coupling 13, and a helical gear oil pump 14. The output shaft of the main pump motor 11 is connected to the helical gear oil pump 14 through the coupling 13, and the coupling 13 is covered by a bell-shaped cover 12 for protection. The helical gear pump 14 pumps lubricating oil for the system.

[0020] The return oil pump unit 2 includes a return oil pump motor and a cycloidal oil pump. The output shaft of the return oil pump motor is connected to the cycloidal oil pump, which can draw the oil from the bearing chamber of the tested product back to the oil tank.

[0021] The filter assembly 3 includes a base, a filter cartridge, a filter element, a filter cover, and a differential pressure transmitter 21. The filter cartridge is used to fill the filter with filtered oil. The base is fixedly installed at the bottom of the filter cartridge. The base provides an inlet and outlet channel for the oil and is used to install the filter element. The differential pressure transmitter 21 is installed on the side of the base. The filter element is installed inside the filter cartridge. The filter element is used to filter and clean the oil. The filter cover is installed on the top of the filter cartridge. The filter cover fixes the upper end of the filter element and has a high vent.

[0022] The air cooler 4 includes a fan motor, fan blades, a helical gear pump, and an air guide shroud. The helical gear pump is used for heat exchange between lubricating oil and air. An air guide shroud is fixedly installed on the left end of the helical gear pump. The air guide shroud guides the airflow. The fan motor is installed in the center of the air guide shroud. Several fan blades are installed in a ring on the output shaft of the fan motor. The rotation of the fan blades provides airflow.

[0023] The oil circuit valve assembly includes an oil circuit block 26, a safety valve 27, a speed regulating valve 28, and a check valve 29. The helical gear pump and the cycloidal oil pump are respectively provided with oil circuit blocks 26 between the oil circuits connected to the oil tank 35. The oil circuit block 26 provides a channel for oil circuit connection, and a safety valve 27 is provided on the base. The safety valve 27 limits the maximum pressure of the system. A check valve 29 is provided on the base between the helical gear pump and the oil circuit block 26. The check valve 29 prevents oil backflow and protects the helical gear pump. A speed regulating valve 28 is provided in the oil pipeline of the filter assembly 3 that delivers oil to the oil circuit block 26. The speed regulating valve 28 can adjust the flow rate of the lubricating oil.

[0024] The detection sensor assembly includes a gear flow meter 30, a particle size analyzer 31, a pressure sensor 32, and a temperature sensor 33. The gear flow meter 30 is installed between the speed control valve 28 and the oil pipe of the oil circuit block 26. The gear flow meter 30 detects the actual flow rate of the lubricating oil. The particle size analyzer 31 is fixedly installed on the oil tank 35. The particle size analyzer 31 detects the cleanliness data of the lubricating oil entering and leaving the bearing in real time. Pressure sensors 32 are fixedly installed on both oil circuit blocks 26. The pressure sensors 32 are used to detect the pressure data of each node in the system. Temperature sensors 33 are fixedly installed on both oil circuit blocks 26. The temperature sensors 33 are used to detect the temperature data of each node in the system.

[0025] The support and tank assembly includes a main support 34, an oil tank 35, a level switch 36, a level gauge 37, an air filter 38, a heater 39, and a pressure gauge 40. The main support 34 is used for the installation and support of various system components. The oil tank 35 is fixedly installed on the top of the main support 34. The oil tank 35 is used to store and recover settled lubricating oil and provides a certain radiator function. A level switch 36 is installed on the top of the oil tank 35 to monitor the level of lubricating oil in the tank. A level gauge 37 is installed on the rear side of the oil tank 35 to indicate the real-time level of lubricating oil in the tank, which can be visually observed. An air filter 38 is fixedly installed on the top left side of the oil tank 35 to filter the air entering and leaving the oil tank and absorb moisture from the air in the tank. A heater 39 is installed on the left end of the oil tank 35 to heat the lubricating oil in the tank. A pressure gauge 40 is fixedly installed on the top right side of the oil tank 35. The pressure gauge 40 is a system pressure indicating instrument.

[0026] The electrical control box assembly 5 includes a box, electrical components, a touch-screen display, and control operation buttons. The box is used to install electrical control components, and the electrical components are used for electrical control. The touch-screen display and control operation buttons are installed on the outside of the box. The touch-screen display is used for displaying system parameters, inputting commands, and performing function operations. The control operation buttons 44 are used for physically operating switches to input electrical control commands.

[0027] Working principle When in use, this utility model integrates a heater 39, a filter assembly 3, an air cooler 4, a gear flow meter 30, a particle size analyzer 31, a pressure sensor 32, and a temperature sensor 33 into the test bench system. This enables the system to perform functions such as heating, filtering, cooling, detecting lubricating oil flow rate, detecting oil particle size online, detecting pressure, and detecting temperature. This ensures a continuous and quantitative supply of lubricating oil for bearings under various operating conditions, aiding in the determination of various performance indicators of bearings under different operating conditions. The bearing installation and operation testing perfectly matches the actual operating conditions of the bearing, allowing for automated data collection, execution of relevant tests, and output of the collected data.

[0028] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0029] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A bearing lubrication test stand characterized by, The system includes a main motor pump assembly (1), a return oil motor pump assembly (2), a filter assembly (3), an air cooler (4), an oil circuit valve assembly, a detection sensor assembly, a support oil tank assembly, and an electrical control box assembly (5). The support oil tank assembly is divided into upper and lower support layers. The main motor pump assembly (1) is fixedly installed on the bottom layer of the support oil tank assembly. The air cooler (4) is fixedly installed on the left side of the bottom layer of the support oil tank assembly. The return oil motor pump assembly (2) is fixedly installed on the top layer of the support oil tank assembly. The electrical control box assembly (5) is fixedly installed on the right side of the top layer of the support oil tank assembly. The filter assembly (3) is fixedly installed behind the support oil tank assembly. An oil circuit valve assembly is set in the connection oil circuit of the system, and a corresponding detection sensor assembly is set on the oil circuit valve assembly.

2. The bearing lubrication test stand of claim 1, wherein, The main motor pump set (1) includes a main pump motor (11), a bell-shaped cover (12), a coupling (13) and a helical gear oil pump (14). The output shaft of the main pump motor (11) is connected to the helical gear oil pump (14) through the coupling (13), and the coupling (13) is covered with a bell-shaped cover (12).

3. The bearing lubrication test stand of claim 2, wherein, The return oil motor pump set (2) includes a return oil pump motor and a cycloidal oil pump. The output shaft of the return oil pump motor is connected to the cycloidal oil pump, which can draw the oil from the bearing chamber of the tested product back into the oil tank.

4. The bearing lubrication test stand of claim 3, wherein, The filter assembly (3) includes a base, a filter cartridge, a filter element, a filter cover, and a differential pressure transmitter (21). The base is fixedly installed at the bottom of the filter cartridge, and the differential pressure transmitter (21) is installed at the side end of the base. The filter element is installed inside the filter cartridge, and the filter cover is installed at the top of the filter cartridge. The filter cover is used to fix the upper end of the filter element and has a high exhaust port.

5. The bearing lubrication test bench according to claim 4, characterized in that, The air cooler (4) includes a fan motor, fan blades, a helical gear pump and an air guide shroud. The air guide shroud is fixedly installed on the left end of the helical gear pump. The fan motor is installed at the center of the air guide shroud. Several fan blades are installed in a ring on the output shaft of the fan motor.

6. The bearing lubrication test bench according to claim 5, characterized in that, The oil circuit valve group includes an oil circuit block (26), a safety valve (27), a speed regulating valve (28), and a check valve (29). The helical gear pump and the cycloidal oil pump are respectively provided with an oil circuit block (26) between the oil circuits connected to the oil tank (35). The oil circuit block (26) provides a channel for oil circuit connection. A safety valve (27) is provided on the base. A check valve (29) is provided on the base between the helical gear pump and the oil circuit block (26). A speed regulating valve (28) is provided in the oil pipeline of the filter assembly (3) that supplies oil to the oil circuit block (26).

7. The bearing lubrication test bench according to claim 6, characterized in that, The detection sensor assembly includes a gear flow meter (30), a particle size analyzer (31), a pressure sensor (32), and a temperature sensor (33). The gear flow meter (30) is installed between the speed control valve (28) and the oil pipe of the oil circuit block (26). The particle size analyzer (31) is fixedly installed on the oil tank (35). Pressure sensors (32) and temperature sensors (33) are fixedly installed on both oil circuit blocks (26).

8. The bearing lubrication test bench according to claim 1, characterized in that, The support tank assembly includes a main support (34), an oil tank (35), a level switch (36), a level gauge (37), an air filter (38), a heater (39), and a pressure gauge (40). The oil tank (35) is fixedly installed on the top of the main support (34).

9. The bearing lubrication test bench according to claim 8, characterized in that, A level switch (36) is provided on the top of the oil tank (35), a level gauge (37) is provided on the rear side of the oil tank (35), an air filter (38) is fixedly installed on the top left side of the oil tank (35), a heater (39) is installed on the left end of the oil tank (35), and a pressure gauge (40) is fixedly installed on the top right side of the oil tank (35). The pressure gauge (40) is a system pressure indicating instrument.

10. The bearing lubrication test bench according to claim 1, characterized in that, The electrical control box assembly (5) includes a box body, electrical components, a touch operation display screen and control operation buttons. Electrical control components are installed inside the box body, and a touch operation display screen and control operation buttons are installed on the outside of the box body.

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