Performance test bench for self-lubricating bearings

Abstract

The utility model discloses a performance test platform based on self -lubricating bearing, including test platform, be provided with detection subassembly on the test platform, the below of pressure sensor is equipped with auxiliary assembly, through the detection subassembly and auxiliary assembly of setting of test platform mutual cooperation, can fully simulate the rotating friction behavior under the actual working condition of bearing, and fully exert vertical load, realize static pressurization and rotating friction's synchronous test, ensure the coaxality and perpendicularity when bearing placement, reduce the data deviation caused by uneven stress, further improve the accuracy and reliability of test data, and the horizontal inductor of setting of test platform can real -time monitoring test platform horizontal state, guarantee test platform always be in horizontal state, improve test data accuracy.

Description

Technical Field

[0001] This utility model relates to the field of self-lubricating bearing technology, and more specifically, to a performance testing bench based on self-lubricating bearings. Background Technology

[0002] Self-lubricating bearings are sliding bearings that can operate normally without external lubrication or with only a very small amount of lubrication. They are widely used in aerospace, rail transportation, wind power generation, construction machinery, automotive industry and precision instruments. To ensure product quality and engineering application safety, their key performance indicators must be tested through scientific and precise experimental methods.

[0003] However, the test bench can only apply static pressure and cannot simulate the rotational friction behavior of the bearing under actual working conditions. Furthermore, the test bench cannot guarantee the coaxiality and perpendicularity of the bearing when it is placed, resulting in uneven force during the test and affecting the accuracy of the friction and wear data.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] To address the problems in related technologies, this utility model proposes a performance testing bench based on self-lubricating bearings. This solves the problems that existing testing benches can only apply static pressure and cannot simulate the rotational friction behavior of bearings under actual working conditions. Furthermore, the testing benches cannot guarantee the coaxiality and perpendicularity of the bearings when placed, resulting in uneven force during testing and affecting the accuracy of friction and wear data.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows: A performance testing bench based on self-lubricating bearings includes a testing bench, a testing assembly on the testing bench, a testing frame on the testing bench, temperature sensors and displacement sensors symmetrically arranged on the testing frame, an electric telescopic rod above the testing frame, a pressure sensor at one end of the electric telescopic rod, and auxiliary components below the pressure sensor.

[0007] Furthermore, in order to better place and clamp the self-lubricating bearing to be tested, the auxiliary components include a three-jaw chuck one located below the pressure sensor, a motor located on the test platform, a three-jaw chuck two located at one end of the motor, an auxiliary measuring plate located at the jaws of the three-jaw chuck two, and an adjusting motor installed at the adjustment point between the three-jaw chuck two and the three-jaw chuck one.

[0008] Furthermore, in order to better improve the anti-slip performance of the self-lubricating bearing, multiple anti-slip pads are provided at the jaws of the three-jaw chuck, and the anti-slip pads are adapted to the jaws of the three-jaw chuck.

[0009] Furthermore, to better prevent the self-lubricating bearing from breaking and splashing during pressure testing, a protective cover is installed above the test bench. One side of the protective cover is connected to one end of the electric telescopic rod, and an opening is provided on one side of the protective cover.

[0010] Furthermore, in order to better assist the protective cover in shielding and in observing the detection situation, a sliding groove is provided inside the placement opening, a shielding plate is installed inside the sliding groove, and a transparent observation plate is set on the shielding plate.

[0011] Furthermore, to ensure a better level of the test bench and improve the accuracy of the self-lubricating bearing test data, a level sensor is installed on one side of the test bench, and multiple support columns are installed below the test bench, with leveling seats connected to the bottom of the support columns.

[0012] The beneficial effects of this utility model are as follows: (1) By cooperating with the detection components and auxiliary components set on the test bench, the rotational friction behavior of the bearing under actual working conditions can be fully simulated, and the vertical load can be fully applied to achieve synchronous testing of static pressure and rotational friction, ensuring the coaxiality and perpendicularity of the bearing when it is placed, reducing the data deviation caused by uneven force, and further improving the accuracy and reliability of the test data.

[0013] (2) By setting up protective covers, shields and transparent observation plates on the test bench, the possible flying of fragments during the test can be effectively blocked, allowing real-time observation of the test process, ensuring test safety and visibility. The level sensor set up on the test bench can monitor the level of the test bench in real time, ensuring that the test bench is always in a level state and improving the accuracy of test data. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of a performance testing bench based on a self-lubricating bearing according to an embodiment of the present invention; Figure 2 yes Figure 1 A schematic diagram of the side structure; Figure 3 This is a schematic diagram of the internal structure of a performance testing bench based on a self-lubricating bearing according to an embodiment of the present invention; Figure 4This is a schematic diagram of the testing component structure of a performance testing bench based on a self-lubricating bearing according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the auxiliary component structure of a performance testing bench based on a self-lubricating bearing according to an embodiment of the present invention.

[0016] In the picture: 1. Test bench; 2. Detection components; 201. Test frame; 202. Temperature sensor; 203. Displacement sensor; 204. Electric telescopic rod; 205. Pressure sensor; 3. Auxiliary components; 301. Three-jaw chuck one; 302. Motor; 303. Three-jaw chuck two; 304. Auxiliary measuring plate; 305. Adjusting motor; 4. Anti-slip mat; 5. Protective cover; 6. Shielding plate; 7. Transparent observation plate; 8. Level sensor; 9. Support column; 10. Leveling seat. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1: like Figures 1-4 As shown, the performance testing bench based on self-lubricating bearings according to an embodiment of the present invention includes a testing bench 1 for placing the self-lubricating bearing to be tested. A level sensor 8 is provided on one side of the testing bench 1 to detect the levelness of the testing bench 1 when it is placed, thereby improving the accuracy of the test data. Four support columns 9 are provided below the testing bench 1 for auxiliary support of the testing bench 1. A leveling seat 10 is connected below the support columns 9 for leveling the testing bench 1 if it is not placed stably. A miniature electric telescopic rod (not shown in the figure) is provided at one end of the leveling seat 10 during actual use. The miniature electric telescopic rod is located inside the support column 9. The test bench 1 is equipped with a detection component 2, which includes a test frame 201 on the test bench 1 for mounting the testing instruments. Temperature sensors 202 and displacement sensors 203 are symmetrically arranged on the test frame 201 for detecting the temperature and wear of the self-lubricating bearing during testing. Temperature sensors 202 and displacement sensors 203 can be replaced with other sensors (existing technology) according to actual conditions during actual use, so they will not be described in detail. An electric telescopic rod 204 is provided above the test frame 201 for pressing the pressure sensor 205 to perform pressure performance testing on the self-lubricating bearing. A pressure sensor 205 is provided at one end of the electric telescopic rod 204 for detecting the data during the pressure test. A protective cover 5 is installed above the test bench 1 to shield the broken self-lubricating bearing fragments. One side of the inner side of the protective cover 5 is connected to one end of the electric telescopic rod 204. A placement opening is provided on one side of the protective cover 5 for placing the self-lubricating bearing. A sliding groove is provided inside the placement opening, and a shielding plate 6 is installed inside the sliding groove to assist in shielding the placement opening. A transparent observation plate 7 is provided on the shielding plate 6 to assist in observing the test status of the self-lubricating bearing.

[0019] Example 2: like Figures 1-3 , Figure 5 As shown, according to the performance test bench based on self-lubricating bearings of this utility model embodiment, an auxiliary component 3 is provided below the pressure sensor 205. The auxiliary component 3 includes a three-jaw chuck 301 provided below the pressure sensor 205 for placing the self-lubricating bearing to be tested. The self-lubricating bearing to be tested has a clean surface without impurities. Multiple anti-slip pads 4 are provided at the jaws of the three-jaw chuck 301 to improve the anti-slip performance of placing the self-lubricating bearing. Each jaw is provided with two or three pads, which can be adjusted according to the actual situation. The anti-slip pads 4 are adapted to the jaws of the three-jaw chuck 301. The test bench 1 is equipped with a motor 302, which is used to rotate the three-jaw chuck 303 to cause the auxiliary measuring plate 304 to rub against the self-lubricating bearing under test. The motor 302, displacement sensor 203, temperature sensor 202, and level sensor 8 are equipped with a display screen (not shown in the figure) for test data. The display screen is installed on one side of the protective cover 5 (not shown in the figure). The three-jaw chuck 303 is installed at one end of the motor 302 to adjust the auxiliary measuring plate 304 according to the size of the self-lubricating bearing under test. The three-jaw chuck 303 and the three-jaw chuck 301 are set opposite to each other. The auxiliary measuring plate 304 is installed at the jaw of the three-jaw chuck 303 for auxiliary testing and support of the self-lubricating bearing under test. An adjusting motor 305 is installed at the adjustment point of the three-jaw chuck 303 and the three-jaw chuck 301 to drive the adjustment jaw of the three-jaw chuck 303 and the three-jaw chuck 301. The regulating motor 305, motor 302, pressure sensor 205, electric telescopic rod 204, displacement sensor 203, temperature sensor 202, level sensor 8, miniature electric telescopic rod, and display screen are electrically connected to a controller (not shown in the figure) in actual use. The controller is a PLC (programmable logic controller) or a microcontroller. The specific working control program of the controller is written and set according to the actual situation, which is conducive to the precise control of the electrically connected electrical components. The above structure is electrically connected to an external power supply in actual use. The adjusting motor 305, three-jaw chuck 2 303, motor 302, three-jaw chuck 1 301, pressure sensor 205, electric telescopic rod 204, displacement sensor 203, temperature sensor 202, level sensor 8, miniature electric telescopic rod, transparent observation plate 7, protective cover 5, and display screen are existing technologies and will not be described in detail. The specific model and specifications need to be selected and determined according to the actual specifications of the device.

[0020] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0021] In summary, with the help of the above-mentioned technical solution of this utility model, when the test platform 1 is placed, the level sensor 8 set on the test platform 1 monitors the levelness of the platform surface in real time. If tilting is detected, the miniature electric telescopic rod set at the bottom of the support column 9 automatically responds to the leveling seat 10 to adjust the height, ensuring that the test platform 1 is in a level state, thus providing a basis for accurate testing. Then, the operator opens the shield 6 set in the protective cover 5 and places the self-lubricating bearing to be tested (with a clean and impurity-free surface) on the auxiliary measuring plate 304 set in the three-jaw chuck 2 303. Then, the adjusting motor 305 drives the jaws of the three-jaw chuck 2 303, so that the auxiliary measuring plate 304 set in the jaws of the three-jaw chuck 2 303 clamps the self-lubricating bearing to be tested according to its size. Meanwhile, the electric telescopic rod 204 set in the protective cover 5 drives the three-jaw chuck 1 301 to move downward, so that the jaws of the three-jaw chuck 1 301 contact the anti-slip pad 4 on the jaw surface, which can increase the friction during contact and prevent the bearing from sliding. At the same time, the adjusting motor 305 set in the three-jaw chuck 1 301 drives the jaws of the three-jaw chuck 1 301 to clamp the self-lubricating bearing to be tested, ensuring that the clamping is stable and coaxially aligned. After fixing, the shield 6 is closed. During testing, the electric telescopic rod 204 is activated again and pressed down. The electric telescopic rod 204 drives the pressure sensor 205 to apply a vertical load to the bearing. The pressure sensor 205 feeds back the pressure data to the control system in real time. The protective cover 5 is fully enclosed to prevent the bearing from breaking and splashing. At the same time, the motor 302 on the test bench 1 drives the three-jaw chuck 2 303 to rotate. The three-jaw chuck 2 303 drives the auxiliary measuring plate 304 on the jaws to rub against the bearing surface. The displacement sensor 203 monitors the bearing wear in real time, and the temperature sensor 202 collects the friction temperature rise data synchronously. The test data is displayed on the display screen on the protective cover 5. During the test, the operator can also visually monitor the test process through the transparent observation plate 7 on the shield 6.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A performance testing bench based on self-lubricating bearings, comprising a testing bench (1), characterized in that, A detection component (2) is provided on the test bench (1). The detection component (2) includes a test frame (201) provided on the test bench (1). A temperature sensor (202) and a displacement sensor (203) are symmetrically arranged on the test frame (201). An electric telescopic rod (204) is provided above the test frame (201). A pressure sensor (205) is provided at one end of the electric telescopic rod (204). An auxiliary component (3) is provided below the pressure sensor (205).

2. The performance testing bench based on self-lubricating bearings according to claim 1, characterized in that, The auxiliary component (3) includes a three-jaw chuck (301) located below the pressure sensor (205), a motor (302) located on the test bench (1), a three-jaw chuck (303) located at one end of the motor (302), an auxiliary measuring plate (304) located at the jaw of the three-jaw chuck (303), and an adjusting motor (305) installed at the adjustment point between the three-jaw chuck (303) and the three-jaw chuck (301).

3. The performance testing bench based on self-lubricating bearings according to claim 2, characterized in that, The jaws of the three-jaw chuck (301) are provided with multiple anti-slip pads (4), which are adapted to the jaws of the three-jaw chuck (301).

4. The performance testing bench based on self-lubricating bearings according to claim 3, characterized in that, A protective cover (5) is provided above the test platform (1). The inner side of the protective cover (5) is connected to one end of the electric telescopic rod (204). A placement opening is provided on one side of the protective cover (5).

5. The performance testing bench based on self-lubricating bearings according to claim 4, characterized in that, The placement port has a sliding groove inside, and a baffle plate (6) is installed inside the sliding groove. A transparent observation plate (7) is provided on the baffle plate (6).

6. The performance testing bench based on self-lubricating bearings according to claim 1, characterized in that, A level sensor (8) is provided on one side of the test platform (1), and multiple support columns (9) are provided below the test platform (1). A leveling seat (10) is connected to the bottom of the support columns (9).

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