Variable load sliding friction testing machine

Abstract

The utility model discloses a variable load sliding friction testing machine relates to friction testing machine technical field, including friction testing machine, one side top of friction testing machine is fixedly connected with control machine, the positive side of control machine is fixedly installed with data display, the positive side of control machine is provided with control panel, one side top surface fixed mounting of friction testing machine has friction detection contactor. Through setting extrusion fixed disc on extrusion motor control extrusion telescopic link's telescoping, adjust the position of extrusion top disc in extrusion fixed disc inside to control the interval between both sides extrusion fixed disc, and the material that needs to detect is carried out and is fixed to take the fixed operation, and then through control machine control drive motor's start, utilizes drive motor control drive screw rod's rotation, drives sliding adjustment top disc to adjust the position of the top surface of detection fixed frame, and sliding limit rail is stable to the stable adjustment of sliding adjustment top disc.

Description

Technical Field

[0001] This utility model relates to the field of friction testing machine technology, and in particular to a variable load sliding friction testing machine. Background Technology

[0002] Sliding friction is a ubiquitous physical phenomenon in nature and industrial production, directly affecting the efficiency, energy consumption, lifespan, and reliability of mechanical equipment. Accurately measuring the coefficient of friction and wear rate of material pairs (such as shafts and bearings, guide rails and sliders, seals and journals) under different operating conditions is crucial for new material development, lubricant performance evaluation, product optimization design, and equipment condition prediction. In practical engineering applications, the loads on mechanical equipment are often dynamic rather than constant. For example, gears experience periodic load changes during meshing, machine tool guide rails bear varying loads when machining different workpieces, and automotive brake pads experience instantaneous pressure increases during braking. Simulating these variable load conditions in a laboratory environment and studying their impact on friction and wear behavior more realistically reflects the service performance of materials than testing under a single constant load, thus possessing higher engineering guidance value. Therefore, we redesigned a variable load sliding friction testing machine. Utility Model Content

[0003] The purpose of this invention is to provide a variable load sliding friction testing machine.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a variable load sliding friction testing machine, comprising a friction testing machine, a control unit fixedly connected to one top side of the friction testing machine, a data display fixedly installed on one side of the front of the control unit, a control panel provided on one side of the front of the control unit, a friction detection contactor fixedly installed on one top side of the friction testing machine, a detection fixing frame fixedly installed on the top side of the friction testing machine near the friction detection contactor, a drive threaded rod rotatably connected to one top side of the detection fixing frame, a sliding adjustment top plate movably installed on one side of the drive threaded rod, a compression fixing plate fixedly connected to one bottom surface of the sliding adjustment top plate, a compression motor fixedly installed on the outer wall of one top side of the compression fixing plate, a compression telescopic rod driven and connected to one top side of the compression motor, and a compression top plate fixedly connected to one top side of the compression telescopic rod.

[0005] Preferably, a drive motor is fixedly installed on the outer wall of one top of the detection fixture, a sliding limit rail is fixedly installed on the inner wall of the top of the detection fixture, and a heat dissipation box is fixedly installed on the top of one back of the control unit.

[0006] Preferably, the friction detection contactor is located directly below the detection fixture, and there are several friction detection contactors, which are evenly distributed at the top of the friction testing machine.

[0007] Preferably, the drive motor and the drive threaded rod are connected by a drive connection, the drive threaded rod passes through the interior of the sliding adjustment top plate, the drive threaded rod and the sliding adjustment top plate are connected by a threaded drive connection, the sliding adjustment top plate and the sliding limit rail are connected by a sliding connection, the extrusion motor and the extrusion top plate are in one-to-one correspondence, there are two extrusion motors, the two extrusion motors are distributed on both sides of the top of the extrusion fixing plate, the extrusion top plate is located inside the extrusion fixing plate, the extrusion fixing plate is located on the bottom surface of the detection fixing frame, and the extrusion fixing plate and the detection fixing frame are connected by a sliding connection.

[0008] Preferably, the friction detection contactor includes a stable chassis, a rotating motor is fixedly connected to one top surface of the stable chassis, a rotating shaft is rotatably connected to one top surface of the rotating motor, a friction contact roller is fixedly connected to one top surface of the rotating shaft, and a motor control panel is fixedly connected to one surface of the rotating motor.

[0009] Preferably, the connection between the rotating motor and the rotating shaft is a drive connection, and the connection between the rotating motor and the motor control panel is a power control connection.

[0010] Compared with related technologies, the variable load sliding friction testing machine provided by this utility model has the following advantages: 1. This utility model provides a variable load sliding friction testing machine. By setting a compression motor on the compression fixed plate to control the extension and retraction of the compression telescopic rod, the position of the compression top plate inside the compression fixed plate is adjusted, thereby controlling the distance between the two compression fixed plates. The material to be tested is clamped and fixed. Then, the control unit controls the start of the drive motor, which in turn controls the rotation of the drive threaded rod, causing the sliding adjustment top plate to adjust its position on the top surface of the testing fixture. The sliding limit rail stabilizes the sliding adjustment top plate, controlling the compression fixed plate to move to different positions of the friction detection contactor, thus controlling the coefficient of friction and achieving variable load sliding friction testing, improving the diversity of testing and the accuracy of the test data.

[0011] 2. This utility model provides a variable load sliding friction testing machine. By setting a heat dissipation box on the back of the control machine, heat dissipation is achieved, which improves the overall service life of the device. The material to be tested directly contacts the friction contact roller for friction testing. The power connection between the motor control panel and the control machine controls the start of the rotating motor, which drives the rotating shaft to rotate. The friction contact roller rotates and contacts the material to be tested for testing. Friction contact rollers of different materials are set at different positions of the friction testing contactor to achieve different friction coefficients and improve the quality of testing. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the overall side top view of the device of this utility model; Figure 3 This is a schematic diagram of the extrusion fixing disc structure of this utility model; Figure 4 This is a schematic diagram of the friction detection contactor structure of this utility model.

[0013] The diagram is labeled as follows: 1. Friction testing machine; 2. Control unit; 3. Data display; 4. Control panel; 5. Friction detection contactor; 51. Stabilizing chassis; 52. Rotating motor; 53. Rotating shaft; 54. Friction contact roller; 55. Motor control panel; 6. Detection fixing frame; 7. Drive threaded rod; 8. Sliding adjusting top plate; 9. Extrusion fixing plate; 10. Extrusion motor; 11. Extrusion telescopic rod; 12. Extrusion top plate; 13. Drive motor; 14. Sliding limit rail; 15. Cooling box. Detailed Implementation

[0014] Example 1: Please see Figure 1-4This utility model provides a technical solution: a variable load sliding friction testing machine, including a friction testing machine 1, a control unit 2 fixedly connected to one top side of the friction testing machine 1, a data display 3 fixedly installed on one side of the front of the control unit 2, a control panel 4 provided on one side of the front of the control unit 2, a friction detection contactor 5 fixedly installed on one top side of the friction testing machine 1, a detection fixing frame 6 fixedly installed on the top side of the friction testing machine 1 near the friction detection contactor 5, a drive threaded rod 7 rotatably connected inside one top side of the detection fixing frame 6, a sliding adjustment top plate 8 movably installed on one side of the drive threaded rod 7, a compression fixing plate 9 fixedly connected to one bottom end of one side of the sliding adjustment top plate 8, a compression motor 10 fixedly installed on the outer wall of one top side of the compression fixing plate 9, a compression telescopic rod 11 drivenly connected to one top side of the compression motor 10, a compression top plate 12 fixedly connected to one top side of the compression telescopic rod 11, and a drive motor fixedly installed on the outer wall of one top side of the detection fixing frame 6. 13. A sliding limit rail 14 is fixedly installed on the inner wall of the top of the test fixture 6. A heat dissipation box 15 is fixedly installed on the top of the back side of the control machine 2. The friction detection contactor 5 is located directly below the test fixture 6. There are several friction detection contactors 5, which are evenly distributed at the top of the friction test machine 1. The drive motor 13 and the drive threaded rod 7 are connected by a drive connection. The drive threaded rod 7 passes through the interior of the sliding adjustment top plate 8. The drive threaded rod 7 and the sliding adjustment top plate 8 are connected by a threaded drive connection. The sliding adjustment top plate 8 and the sliding limit rail 14 are connected by a sliding connection. The positions of the extrusion motor 10 and the extrusion top plate 12 are one-to-one. There are two extrusion motors 10. The two extrusion motors 10 are distributed on both sides of the top of the extrusion fixing plate 9. The extrusion top plate 12 is located inside the extrusion fixing plate 9. The extrusion fixing plate 9 is located on the bottom surface of the test fixture 6. The extrusion fixing plate 9 and the test fixture 6 are connected by a sliding connection.

[0015] In the implementation scheme, the compression motor 10 on the compression fixing plate 9 controls the extension and retraction of the compression telescopic rod 11, adjusting the position of the compression top plate 12 inside the compression fixing plate 9, thereby controlling the distance between the two compression fixing plates 9 to clamp and fix the material to be tested. Then, the control machine 2 controls the start of the drive motor 13, which in turn controls the rotation of the drive threaded rod 7, driving the sliding adjustment top plate 8 to adjust its position on the top surface of the detection fixing frame 6. The sliding limit rail 14 stabilizes the sliding adjustment top plate 8, controlling the compression fixing plate 9 to move to different positions of the friction detection contactor 5, thereby controlling the friction coefficient and realizing the detection of variable load sliding friction, improving the diversity of detection and the accuracy of detection data.

[0016] Example 2: Please see Figure 1-4This utility model provides a technical solution: a variable load sliding friction testing machine, including a friction detection contactor 5 and a stable chassis 51. A rotating motor 52 is fixedly connected to one top surface of the stable chassis 51. A rotating shaft 53 is rotatably connected to one top surface of the rotating motor 52. A friction contact roller 54 is fixedly connected to one top surface of the rotating shaft 53. A motor control disk 55 is fixedly connected to one surface of the rotating motor 52. The rotating motor 52 and the rotating shaft 53 are connected by a drive connection, and the rotating motor 52 and the motor control disk 55 are connected by an electric control connection.

[0017] In the implementation plan, a heat dissipation box 15 is set on the back of the control unit 2 to achieve heat dissipation, thereby improving the overall service life of the device. The material to be tested directly contacts the friction contact roller 54 for friction detection. The electric connection between the motor control panel 55 and the control unit 2 controls the start of the rotating motor 52, which drives the rotating shaft 53 to rotate. The friction contact roller 54 rotates and contacts the material to be tested for detection. Friction contact contactors 5 at different positions are equipped with friction contact rollers 54 of different materials to achieve different friction coefficients and improve the quality of detection.

[0018] Working principle: By setting the extrusion motor 10 on the extrusion fixed plate 9 to control the extension and retraction of the extrusion telescopic rod 11, the position of the extrusion top plate 12 inside the extrusion fixed plate 9 is adjusted, thereby controlling the distance between the two extrusion fixed plates 9, and clamping and fixing the material to be tested. Then, the control machine 2 controls the start of the drive motor 13, and the drive motor 13 controls the rotation of the drive threaded rod 7, which drives the sliding adjustment top plate 8 to adjust the position on the top surface of the detection fixed frame 6. The sliding limit rail 14 stabilizes the sliding adjustment top plate 8, controls the extrusion fixed plate 9 to move to different positions of the friction detection contactor 5, realizes the control of the friction coefficient, and thus realizes the detection of variable load sliding friction, improves the diversity of detection, and improves the accuracy of detection data. By setting a heat dissipation box 15 on the back of the control unit 2, heat dissipation is achieved, improving the overall service life of the device. The material to be tested directly contacts the friction contact roller 54 for friction detection. The electric connection between the motor control panel 55 and the control unit 2 controls the start of the rotating motor 52, which drives the rotating shaft 53 to rotate. The friction contact roller 54 rotates and contacts the material to be tested for detection. Friction contact contactors 5 at different positions are equipped with friction contact rollers 54 of different materials to achieve different friction coefficients and improve the quality of detection.

Claims

1. A variable load sliding friction testing machine, comprising a friction testing machine (1), wherein a control unit (2) is fixedly connected to one top side of the friction testing machine (1), characterized in that: A data display (3) is fixedly installed on one side of the front of the control machine (2). A control panel (4) is provided on one side of the front of the control machine (2). A friction detection contactor (5) is fixedly installed on the top surface of one side of the friction test machine (1). A detection mounting bracket (6) is fixedly installed on the top side of the friction test machine (1) near the friction detection contactor (5). A drive threaded rod (7) is rotatably connected inside the top side of the detection mounting bracket (6). A sliding adjustment top plate (8) is movably installed on one side surface of the drive threaded rod (7). A pressing mounting plate (9) is fixedly connected to the bottom surface of one side of the sliding adjustment top plate (8). A pressing motor (10) is fixedly installed on the outer wall of the top side of the pressing mounting plate (9). A pressing telescopic rod (11) is driven and connected to the top side of the pressing motor (10). A pressing top plate (12) is fixedly connected to the top side surface of the pressing telescopic rod (11).

2. The variable load sliding friction testing machine according to claim 1, characterized in that, A drive motor (13) is fixedly installed on the outer wall of the top of one side of the detection fixture (6), a sliding limit rail (14) is fixedly installed on the inner wall of the top of the detection fixture (6), and a heat dissipation box (15) is fixedly installed on the top of the back side of one side of the control machine (2).

3. The variable load sliding friction testing machine according to claim 1, characterized in that, The friction detection contactor (5) is located directly below the detection fixture (6). There are several friction detection contactors (5), and these contactors (5) are evenly distributed at the top of the friction testing machine (1).

4. A variable load sliding friction testing machine according to claim 2, characterized in that, The drive motor (13) and the drive threaded rod (7) are connected by a drive connection. The drive threaded rod (7) passes through the interior of the sliding adjustment top plate (8). The drive threaded rod (7) and the sliding adjustment top plate (8) are connected by a threaded drive connection. The sliding adjustment top plate (8) and the sliding limit rail (14) are connected by a sliding connection. The extrusion motor (10) and the extrusion top plate (12) are in one-to-one correspondence. There are two extrusion motors (10). The two extrusion motors (10) are distributed on both sides of the top of the extrusion fixing plate (9). The extrusion top plate (12) is located inside the extrusion fixing plate (9). The extrusion fixing plate (9) is located on the bottom surface of the detection fixing frame (6). The extrusion fixing plate (9) and the detection fixing frame (6) are connected by a sliding connection.

5. A variable load sliding friction testing machine according to claim 1, characterized in that, The friction detection contactor (5) includes a stable chassis (51), a rotating motor (52) is fixedly connected to one side of the top surface of the stable chassis (51), a rotating shaft (53) is rotatably connected to one side of the top surface of the rotating motor (52), a friction contact roller (54) is fixedly connected to one side of the top surface of the rotating shaft (53), and a motor control panel (55) is fixedly connected to one side of the rotating motor (52).

6. A variable load sliding friction testing machine according to claim 5, characterized in that, The connection between the rotating motor (52) and the rotating shaft (53) is a drive connection, and the connection between the rotating motor (52) and the motor control panel (55) is a power control connection.

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