An oil cooling test bench device

Abstract

An oil cooling experiment bench device, including bottom chamber, two bearing seats are connected in bottom chamber, bearing hole is processed in bearing seat, experimental bearing is installed in bearing hole, shaft is passed through in experimental bearing, motor and axial pressure are provided on bearing seat side surface, output shaft of motor is connected with one end of shaft, axial pressure is provided on side far from motor, pressure cover is connected on axial pressure and presses experimental bearing, oil inlet hole is processed on bearing seat top, oil inlet hole is communicated with bearing hole below, experimental bearing side surface is exposed and communicated with outside of bearing seat, oil pump is arranged on bottom chamber outside, inlet of oil pump is connected with bottom chamber through oil inlet pipe, outlet of oil pump is connected with oil inlet hole through oil outlet pipe, temperature sensor and vibration sensor are installed on experimental bearing top, the utility model discloses can effectively measure the vibration value of experimental bearing, and the test result is more accurate, and simultaneously, it is convenient to dismount and install.

Description

Technical Field

[0001] This utility model relates to the field of bearing testing, specifically to an oil-cooled test bench device. Background Technology

[0002] After the bearing is manufactured, it needs to undergo an oil cooling test, such as... Figure 3 The diagram shows the structure of an existing oil-cooled test bench. Four bearings are installed on the bench: bearings 1 and 4 are experimental bearings, and bearings 2 and 3 are support bearings. Vibration sensors are fixed to the bushings of the support bearings 2 and 3 in the middle. The measured data is the overall vibration value of all four bearings, but the experimental objective is to measure the vibration values ​​of bearings 1 and 4, which does not meet the expected results. Secondly, although the support bearings 2 and 3 in the middle are not subjected to axial force in the original design, they still affect the overall test results. Thirdly, the original design has insufficient oil circulation; the cooling oil splashes from both sides to the two experimental bearings, causing insufficient lubrication. Fourthly, in the original design, abrasive particles settle to the bottom during abrasive testing, making it impossible to control the number of abrasive particles in the oil. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an oil-cooled experimental bench device to address the shortcomings of the prior art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: An oil-cooled experimental bench device includes a bottom chamber with two bearing seats connected inside. Bearing holes are machined into the bearing seats, and experimental bearings are installed within these holes. A rotating shaft passes through the middle of each experimental bearing, and a spacer is installed on the rotating shaft to separate the bearings. A motor and an axial pressure device are located on the side of each bearing seat. The output shaft of the motor is connected to one end of the rotating shaft via a coupling. The axial pressure device is located on the side away from the motor, and a pressure sleeve is connected to the axial pressure device, pressing down on one side of the experimental bearing. An oil inlet is machined above the bearing seat, communicating with the bearing holes below. The side of the experimental bearing is exposed and communicates with the outside of the bearing seat. An oil pump is located outside the bottom chamber. The inlet of the oil pump is connected to the bottom chamber via an inlet pipe, and the outlet of the oil pump is connected to the inlet via an outlet pipe. A temperature sensor and a vibration sensor are installed above the experimental bearing.

[0005] Furthermore, the bearing housing has a step machined inside the bearing hole, the step blocks one side of the outer ring of the test bearing, the pressure sleeve presses against the outer ring of the test bearing on the other side, the pressure sleeve has an oil passage hole machined on it, the spacer blocks the inner ring of the bearing, and a retaining sleeve is installed at the tail of the rotating shaft, the retaining sleeve presses against the inner ring of the test bearing.

[0006] Furthermore, the oil inlet pipe and the oil outlet pipe are made of high-temperature resistant corrugated pipe. A ball valve is installed on the oil outlet pipe, and a three-way pipe is connected to the ball valve. The three-way pipe is connected to the oil inlet hole through two connecting pipes respectively.

[0007] Furthermore, an agitator is installed on the oil tank of the oil pump.

[0008] Furthermore, the temperature sensor is mounted on the bearing housing, with its sensing end in contact with the outer ring of the experimental bearing, and the vibration sensor is mounted above the bearing housing.

[0009] Compared with the prior art, the oil-cooled experimental bench device of this utility model has the following advantages: 1. The vibration sensor is directly installed above the experimental bearing, effectively measuring the vibration value of the experimental bearing and avoiding interference from the accompanying bearing; 2. The auxiliary bearing and its tooling were optimized and the intermediate washer sleeve was extended. The entire tooling was not subject to radial force, and the axial force was increased. The equivalent life calculation was improved, and the influence of the experimental bearing and its tooling on the overall test was reduced, making the experimental test results more accurate. 3. The oil circulation has been changed from splashing from both sides to flowing into the bearing through the oil holes, resulting in better lubrication and cooling effects; 4. Since the coolant in the abrasive test contains particles, a stirrer is added to the oil pump tank to ensure that the concentration of the coolant is consistent in each experiment and to control the variables.

[0010] 5. The optimized oil-cooled experimental platform is easier to assemble and disassemble. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the installation structure of the experimental bearing of this utility model; Figure 3 This is a schematic diagram of the original experimental bearing test bench; The components are as follows: 1. Bottom chamber; 2. Bearing housing; 3. Experimental bearing; 4. Rotary shaft; 5. Spacer; 6. Motor; 7. Roller; 8. Coupling; 9. Pressure sleeve; 10. Baffle; 11. Oil inlet; 12. Oil pump; 13. Oil inlet pipe; 14. Oil outlet pipe; 15. Ball valve; 16. T-pipe; 17. Connecting pipe; 18. Stirrer; 19. Temperature sensor; 20. Vibration sensor. Detailed Implementation

[0012] The technical solutions in the embodiments of this utility model will be clearly and completely described below.

[0013] like Figure 1 and Figure 2As shown, an oil-cooled experimental bench device includes a bottom chamber 1, within which two bearing seats 2 are connected. Bearing holes are machined within the bearing seats 2, and experimental bearings 3 are installed within these holes. A rotating shaft 4 passes through the middle of the experimental bearing 3, and a spacer 5 is installed on the rotating shaft 4 to separate the experimental bearing 3. A motor 6 and an axial pressure 7 are arranged on the side of the bearing seats 2. The output shaft of the motor 6 is connected to one end of the rotating shaft 4 via a coupling 8. The axial pressure 7 is located on the side away from the motor 6, and a pressure sleeve 9 is connected to the axial pressure 7, pressing down on one side of the experimental bearing 3. Generally, the axial pressure 7 provides pressure through a spring. The axial pressure method can be referenced in publication CN220366999U, entitled "An Axial Pressure Testing Device Suitable for High-Speed ​​and Rapidly Changing Bearing Life".

[0014] In this embodiment, a step is machined in the bearing hole of the bearing housing 2 on one side, the step blocks the outer ring of the experimental bearing 3 on one side, while the pressure sleeve 9 presses the outer ring of the experimental bearing 3 on the other side. The spacer 5 blocks the inner ring of the bearing, and a retaining sleeve 10 is installed at the tail of the rotating shaft 4. The retaining sleeve 10 presses the inner ring of the experimental bearing 3 so that the two experimental bearings are connected on the rotating shaft.

[0015] An oil inlet hole 11 is machined on the upper part of the bearing housing, and the lower part of the oil inlet hole 11 communicates with the bearing hole. An oil passage hole is machined on the pressure sleeve to allow oil to pass through the pressure sleeve. The side of the experimental bearing 3 is exposed and communicates with the outside of the bearing housing 2. During the oil cooling experiment, the oil enters the bearing hole from the oil inlet hole 11. Since the side of the experimental bearing 3 is exposed, the oil flows smoothly from one side of the experimental bearing 3 to the other side and converges in the bottom cavity. This structural improvement enhances the lubrication effect of the bearing.

[0016] In this embodiment, in order to facilitate the machining of the oil inlet hole 11, the upper part of the bearing housing 2 is machined and assembled in sections.

[0017] An oil pump 12 is installed outside the bottom chamber 1. The inlet of the oil pump 12 is connected to the bottom chamber 1 through an oil inlet pipe 13, and the outlet of the oil pump 12 is connected to the oil inlet through an oil outlet pipe 14. The oil pump 12 is used to circulate the oil. In this embodiment, the oil inlet pipe 13 and the oil outlet pipe 14 are made of high-temperature resistant corrugated pipes. A ball valve 15 is installed on the oil outlet pipe 14, and a three-way pipe 16 is connected to the ball valve 15. The three-way pipe 16 is connected to the oil inlet through two connecting pipes 17 respectively.

[0018] The oil pump 12 is equipped with a stirrer 18 on its oil tank. The stirrer 18 stirs the oil in the oil tank to ensure that the particles in the cooling oil are uniform in each experiment.

[0019] A temperature sensor 19 and a vibration sensor 20 are installed above the experimental bearing 3. The temperature sensor 19 is mounted on the bearing housing 2 and extends into the bearing housing 2. The sensing end of the temperature sensor 19 is in contact with the outer ring of the experimental bearing 3. The vibration sensor 20 is mounted above the bearing housing. The temperature sensor 19 and the vibration sensor 20 are used to collect test data.

[0020] This utility model is not limited to the embodiments described. Those skilled in the art can still make some modifications or changes without departing from the spirit and scope of this utility model. Therefore, the scope of protection of this utility model shall be determined by the scope defined in the claims.

Claims

1. An oil-cooled experimental platform device, characterized in that: The device includes a bottom chamber containing two bearing seats. Each bearing seat has a bearing hole machined into it, and a test bearing is installed within the bearing hole. A rotating shaft passes through the middle of the test bearing, and a spacer is installed on the rotating shaft to separate the test bearings. A motor and an axial pressure device are located on the side of each bearing seat. The output shaft of the motor is connected to one end of the rotating shaft via a coupling. The axial pressure device is located on the side away from the motor, and a pressure sleeve is connected to the axial pressure device, pressing down on one side of the test bearing. An oil inlet is machined above the bearing seat, communicating with the bearing hole below. The side of the test bearing is exposed and communicates with the outside of the bearing seat. An oil pump is located outside the bottom chamber. The inlet of the oil pump is connected to the bottom chamber via an oil inlet pipe, and the outlet of the oil pump is connected to the oil inlet via an oil outlet pipe. A temperature sensor and a vibration sensor are installed above the test bearing.

2. The oil-cooled experimental platform device according to claim 1, characterized in that: The bearing housing has a step machined in the bearing hole, which blocks the outer ring of the test bearing on one side. The pressure sleeve presses against the outer ring of the test bearing on the other side. The pressure sleeve has an oil passage hole machined on it. The spacer sleeve blocks the inner ring of the bearing. A retaining sleeve is installed at the tail of the rotating shaft, which presses against the inner ring of the test bearing.

3. The oil-cooled experimental platform device according to claim 1, characterized in that: The oil inlet pipe and oil outlet pipe are made of high-temperature resistant corrugated pipe. A ball valve is installed on the oil outlet pipe, and a three-way pipe is connected to the ball valve. The three-way pipe is connected to the oil inlet hole through two connecting pipes respectively.

4. The oil-cooled experimental platform device according to claim 1, characterized in that: An agitator is installed on the oil tank of the oil pump.

5. The oil-cooled experimental platform device according to claim 1, characterized in that: The temperature sensor is mounted on the bearing housing, with its sensing end in contact with the outer ring of the experimental bearing. The vibration sensor is mounted above the bearing housing.

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