A multi-purpose adjustable load reciprocating friction and wear test device

Abstract

The present application relates to the technical field of material friction and wear performance test, and particularly relates to a multipurpose adjustable load reciprocating friction and wear test device, which comprises an optical platform and a supporting assembly, the supporting assembly is installed on the optical platform, a loading assembly, the loading assembly comprises a hand wheel and a lifting pedestal, a trapezoidal screw rod, a transmission flange, a force sensor, a top block, a sleeve and a grinding ball, the lifting pedestal is arranged on the supporting assembly, a worm and gear transmission mechanism is arranged in the lifting pedestal, the worm and gear transmission mechanism is used for converting the rotation of the hand wheel into the lifting movement of the lifting pedestal, one end of the force sensor is connected with the transmission flange, the other end of the force sensor is connected with the top block, and the grinding ball is arranged between the top block and the sleeve. The device has the characteristics of continuous adjustable load, stable loading direction, strong general-purpose of the clamp and multipurpose test, and meets the engineering use requirements.

Description

Technical Field

[0001] This invention relates to the field of material friction and wear performance testing technology, specifically to a multi-purpose adjustable load reciprocating friction and wear testing device. Background Technology

[0002] Friction and wear are common failure modes in mechanical equipment operation. Accurately assessing the friction and wear properties of materials is crucial for material selection, surface modification, and life prediction. Reciprocating friction and wear testing is an important method for simulating the frictional behavior of reciprocating moving parts under actual working conditions. Currently, commonly used reciprocating friction and wear testing equipment mainly includes components such as a reciprocating mechanism driven by a vibrator or crank-connecting rod, a loading unit, and fixtures.

[0003] Existing loading methods mostly involve weight suspension or spring pressure, which are inconvenient for load adjustment and make it difficult to achieve continuous, adjustable, and stable application of normal pressure. Most devices lack effective guidance in the loading direction, easily generating lateral forces during reciprocating motion, leading to deviations between the actual normal pressure and the set value, affecting the accuracy of friction coefficient measurement. Furthermore, the fixtures typically only accommodate samples of a single shape or size, failing to meet the testing requirements of various friction pair types such as ball-plate and plate-plate, as well as special samples such as perforated thin plates. Moreover, existing devices are functionally limited, only capable of performing friction and wear tests, unable to assess the residual strength or remaining life of worn samples, thus restricting their application in material damage evolution research. Therefore, there is an urgent need to develop a multi-purpose reciprocating friction and wear testing device and method with adjustable load, stable loading direction, versatile fixtures, and the ability to test the mechanical properties after wear. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the existing technology can only be adapted to samples of a single shape or size, and cannot meet the testing requirements of various friction pair forms such as ball-plate and plate-plate, as well as special samples such as perforated thin plates, thereby providing a multi-purpose adjustable load reciprocating friction and wear testing device.

[0005] To address the aforementioned technical problems, this invention provides a multi-purpose adjustable load reciprocating friction and wear testing device, comprising: an optical platform and a support assembly, the support assembly being mounted on the optical platform; a loading assembly, including a handwheel, a lifting platform, a trapezoidal lead screw, a transmission flange, a force sensor, a top block, a ferrule, and a grinding ball; the lifting platform is mounted on the support assembly, and a worm gear transmission mechanism is provided within the lifting platform, the worm gear transmission mechanism being used to convert the rotation of the handwheel into the lifting movement of the lifting platform; one end of the force sensor is connected to the transmission flange, and the other end is connected to the top block; the grinding ball is disposed between the top block and the ferrule; a drive assembly, mounted on the optical platform and located below the loading assembly, the drive assembly having a clamping assembly for clamping a sample, the sample abutting against the grinding ball, the drive assembly driving the clamping assembly to perform reciprocating linear motion; and a guide assembly, mounted on the loading assembly and connected to the support assembly.

[0006] Furthermore, the drive assembly includes: a lead screw and a ball screw slider, a motor, and a drive assembly mounting base; the drive assembly mounting base is disposed on the optical platform, the motor is disposed on the drive assembly mounting base, the lead screw passes through the drive assembly mounting base and is connected to the motor, the ball screw slider is sleeved on the lead screw, and the clamp assembly is disposed on the ball screw slider.

[0007] Furthermore, the drive assembly also includes a support base, a coupling, a drive assembly base, a drive assembly mounting base, and a linear guide rail; the support base and the linear guide rail are mounted on the drive assembly mounting base, one end of the lead screw is connected to the output shaft of the motor through the coupling, and the other end passes through the support base and the ball screw slider, the linear guide rail is provided with a linear guide rail slider, and the bottom of the ball screw slider is connected to the linear guide rail slider.

[0008] Furthermore, the fixture assembly includes a limiting plate, a clamping screw, a base, a partition, a clamping plate, a rear baffle, a front baffle, and a set screw; the limiting plate is located on both sides of the base, the partition is located inside the base, the clamping plate passes through both ends of the partition and is embedded in the base, the clamping screw passes through the limiting plate and abuts against the clamping plate, the sample is located between the two clamping plates, the front baffle and the rear baffle are respectively located on both sides of the sample, and the set screw passes through the front baffle and abuts against one end of the sample.

[0009] Furthermore, the sample is a cuboid sample.

[0010] Furthermore, the clamping plate is provided with a T-shaped slot.

[0011] Furthermore, the aforementioned is a perforated thin plate sample.

[0012] Furthermore, the perforated thin plate sample has arc-shaped grooves on both sides, the perforated thin plate sample is placed on the partition plate, and both ends are embedded in the T-shaped grooves of the clamping plate, and the arc-shaped clamping plate is embedded in the arc-shaped grooves of the perforated thin plate sample.

[0013] Furthermore, the support assembly includes a longitudinal beam, a transverse beam, a vertical beam, a fixing corner piece, and a connecting corner piece; the longitudinal beam is arranged along the reciprocating motion direction, the transverse beam is arranged perpendicular to the reciprocating motion direction, and the vertical beam is arranged perpendicular to the optical platform; the longitudinal beam, transverse beam, and vertical beam are connected to each other through connecting corner pieces, and the vertical beam is connected to the optical platform through the fixing corner piece.

[0014] Furthermore, the guide assembly includes two guide shaft mounting seats, a linear bearing, and an optical shaft. The guide shaft mounting seats are mounted on a longitudinal beam, the linear bearing is located on a transmission flange, and the optical shaft passes through the guide shaft mounting seats and the linear bearing.

[0015] The technical solution of this invention has the following advantages: 1. In terms of load adjustment, the present invention uses a handwheel-driven worm gear mechanism to drive a trapezoidal lead screw to achieve loading. The positive pressure is fed back in real time by a force sensor, which can realize continuous, accurate and stable adjustment of the load, avoiding the inconvenience and pressure fluctuation problems of traditional weight suspension or spring pressure methods.

[0016] 2. Regarding loading guidance, the present invention is provided with two sets of symmetrically arranged guide components. The optical axis is fixed on the support component through the guide shaft mounting seat, and the linear bearing is installed on the transmission flange and moves along the optical axis, ensuring that the positive pressure direction of the loading component is always vertically downward, effectively eliminating the lateral force generated during the reciprocating motion and improving the accuracy of friction coefficient measurement.

[0017] 3. Regarding the versatility of the clamps, this invention provides two replaceable clamping components: the first uses clamping screws, set screws, and front and rear baffles to achieve multi-directional positioning of cuboid samples, ensuring reliable clamping and applicability to cuboid samples of different sizes; the second uses an arc-shaped clamping plate and a semi-circular hole, along with a pressure pin and a pad, to achieve stable clamping of perforated thin-plate samples. Simultaneously, the perforation in the center of the sample creates a weak point, facilitating accelerated damage and subsequent research. Both clamps share the same base, making replacement convenient and enabling the device to meet the testing requirements of various friction pair types, such as ball-plate and plate-plate, as well as samples of different shapes.

[0018] 4. In terms of multi-purpose testing, this invention can not only complete conventional reciprocating friction and wear tests and determine the friction coefficient and wear performance, but also apply static tensile, fatigue or vibration loads to perforated thin plate samples after friction and wear tests to test the residual strength and residual service life of the samples after wear. This realizes the correlation study between friction and wear performance and residual mechanical properties, and provides a more comprehensive testing method for material damage evolution assessment.

[0019] 5. In terms of drive and control, the present invention adopts a closed-loop servo motor to drive the ball screw mechanism, which is combined with linear guide rail to achieve high-precision and high-stability reciprocating linear motion; at the same time, the force sensor can synchronously collect normal force and friction force, which facilitates real-time calculation of friction coefficient and improves the reliability and automation level of test data.

[0020] The summary section is provided to present the chosen concepts in a simplified form, which will be further described in the detailed description below. The summary section is not intended to identify essential or necessary features of this disclosure, nor is it intended to limit the scope of this disclosure. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a multi-purpose adjustable load reciprocating friction and wear testing device according to the present invention; Figure 2 This is a top view of a multi-purpose adjustable load reciprocating friction and wear testing device according to the present invention; Figure 3 for Figure 2 AA section view; Figure 4 for Figure 2 BB cross-sectional view; Figure 5 for Figure 2 CC section view; Figure 6 This is a schematic diagram of the drive assembly in a multi-purpose adjustable load reciprocating friction and wear testing device according to the present invention; Figure 7 This is a schematic diagram of the loading component in a multi-purpose adjustable load reciprocating friction and wear testing device according to the present invention; Figure 8 This is a schematic diagram of the fixture assembly in a multi-purpose adjustable load reciprocating friction and wear testing device according to the present invention; Figure 9 This is a top view of the fixture assembly in a multi-purpose adjustable load reciprocating friction and wear testing device according to the present invention; Figure 10 for Figure 9 DD sectional view; Figure 11 This is a schematic diagram of the clamping plate in a multi-purpose adjustable load reciprocating friction and wear testing device according to the present invention; Figure 12 This is a schematic diagram of the partition plate in the multi-purpose adjustable load reciprocating friction and wear testing device of the present invention; Figure 13 This is another structural schematic diagram of the clamp assembly in the multi-purpose adjustable load reciprocating friction and wear testing device described in this invention; Figure 14 This is a top view of the fixture assembly in a multi-purpose adjustable load reciprocating friction and wear testing device according to the present invention; Figure 15 for Figure 14 EE sectional view; Figure 16 for Figure 14 FF sectional view.

[0023] Explanation of reference numerals in the attached figures: 1. Optical platform; 2. Support components; 201. Longitudinal beam; 202. Transverse beam; 203. Vertical beam; 204. Fixing corner piece; 205. Connecting corner piece; 3. Loading components; 301. Handwheel; 302. Lifting platform; 303. Trapezoidal lead screw; 304. Transmission flange; 305. Force sensor; 306. Top block; 307. Compression sleeve; 308. Grinding ball; 309. Flange; 4. Drive assembly; 401. Bearing support; 402. Lead screw; 403. Ball screw slider; 404. Support base; 405. Coupling; 406. Motor support; 407. Motor; 408. Drive assembly base; 409. Linear guide slider; 410. Base plate; 411. Linear guide; 5. Fixture assembly; 501. Limiting plate; 502. Clamping screw; 503. Base; 504. Partition plate; 505. Clamping plate; 506. Cuboid sample; 507. Rear baffle; 508. Front baffle; 509. Set screw; 510. Pad block; 511. Slotted sheet; 512. Arc clamping plate; 513. Pad plate; 514. Pressure nail; 6. Guide assembly; 601. Guide shaft mounting base; 602. Linear bearing; 603. Optical shaft. Detailed Implementation

[0024] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this disclosure. Therefore, the drawings and description are to be considered exemplary in nature and not restrictive.

[0025] The preferred embodiments of this disclosure are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0026] Please see Figures 1 to 16 As shown, this invention provides a multi-purpose adjustable load reciprocating friction and wear testing device, comprising: an optical platform 1 and a support assembly 2, the support assembly 2 being mounted on the optical platform 1; a loading assembly 3, including a handwheel 301, a lifting platform 302, a trapezoidal lead screw 303, a transmission flange 304, a force sensor 305, a top block 306, a ferrule 307, and a grinding ball 308; the lifting platform 302 is disposed on the support assembly 2, and a worm gear transmission mechanism is provided within the lifting platform 302, the worm gear transmission mechanism being used to rotate the handwheel 301. The lifting platform 302 is used for lifting and moving. One end of the force sensor 305 is connected to the transmission flange 304, and the other end is connected to the top block 306. The grinding ball 308 is located between the top block 306 and the ferrule 307. The drive assembly 4 is located on the optical platform 1 and below the loading assembly 3. The drive assembly 4 is equipped with a clamp assembly 5, which is used to clamp the sample. The sample abuts against the grinding ball 308. The drive assembly 4 drives the clamp assembly 5 to perform reciprocating linear motion. The guide assembly 6 is located on the loading assembly 3 and is connected to the support assembly 2.

[0027] Among them, the support component 2 is used to install and fix the test device on the optical platform 1, the loading component 3 is used to apply a stable positive pressure, the drive component 4 is used to realize reciprocating motion, the clamping component 5 is used to clamp and fix the sample, and the guide component 6 is used to ensure the consistency and stability of the loading direction.

[0028] Both the handwheel 301 and the trapezoidal lead screw 303 in the loading component 3 pass through the lifting platform 302. The lifting platform 302 has a built-in worm gear transmission mechanism, which can convert the rotational motion of the handwheel 301 into the lifting and lowering movement of the lifting platform 302 on the trapezoidal lead screw 303. The lower end of the trapezoidal lead screw 303 is connected to the transmission flange 304.

[0029] The loading assembly 3 also includes a flange 309. The upper end of the sensor 305 is a fixed end, used to connect to the flange 309. The flange 309 is fixedly installed at the bottom of the transmission flange 304. The lower end of the sensor 305 is a sensing end, used to connect to the top block 306.

[0030] The grinding ball 308 is placed between the ferrule 307 and the top block 306. The top block 306 has a threaded section in the middle. The ferrule 307 is screwed into the threaded section until the lower boss of the top block 306 abuts against the grinding ball 308, thereby fixing the grinding ball 308.

[0031] In some optional embodiments, the drive assembly 4 includes: a lead screw 402 and a ball screw slider 403, a motor 407, and a drive assembly mounting base; the drive assembly mounting base is disposed on the optical platform 1, the motor 407 is disposed on the drive assembly mounting base, the lead screw 402 passes through the drive assembly mounting base and is connected to the motor 407, the ball screw slider 403 is sleeved on the lead screw 402, and the clamp assembly 5 is disposed on the ball screw slider 403.

[0032] The drive assembly 4 further includes a support base 404, a coupling 405, a drive assembly base 408, a drive assembly mounting base, and a linear guide rail 411. The support base 404 and the linear guide rail 411 are mounted on the drive assembly mounting base. One end of the lead screw 402 is connected to the output shaft of the motor 407 through the coupling 405, and the other end passes through the support base 404 and the ball screw slider 403. The linear guide rail 411 is provided with a linear guide rail slider 409, and the bottom of the ball screw slider 403 is connected to the linear guide rail slider 409.

[0033] The motor support 406 and the linear guide rail 411 are both mounted on the drive component mounting base. The drive component mounting base sits entirely on the drive component base 408, and the drive component base 408 is fixed to the optical platform 1 by connecting corner pieces 205.

[0034] The drive assembly mounting base includes a bearing support 401, a motor support 406, and a base plate 410. The bearing support 401 and the motor support 406 are located at both ends of the base plate 410. The motor 407 is located on the motor support 406, and the other end of the lead screw 402 is located inside the bearing support 401.

[0035] One end of the lead screw 402 rests on the bearing support 401 via a ball bearing, and the other end rests on the support base 404. It is connected to the output shaft of the motor 407 via a coupling 405. A ball nut is installed inside the ball screw slider 403. The ball screw slider 403 and the lead screw 402 form a ball screw kinematic pair. The bottom of the ball screw slider 403 is fixedly connected to two linear guide sliders 409. The two linear guide sliders 409 form linear kinematic pairs with two linear guides 411 located on the drive component mounting base.

[0036] Specifically, motor 407 is a closed-loop servo motor, mounted on motor support 406; when the output shaft of motor 407 rotates, lead screw 402 also rotates, and ball screw slider 403 moves along the direction of linear guide rail 411; when motor 407 outputs frequent reciprocating rotational motion, ball screw slider 403 undergoes reciprocating linear motion.

[0037] The clamping assembly 5 includes a limiting plate 501, a clamping screw 502, a base 503, a partition 504, a clamping plate 505, a rear baffle 507, a front baffle 508, and a set screw 509. The limiting plate 501 is located on both sides of the base 503, the partition 504 is located inside the base 503, the clamping plate 505 passes through both ends of the partition 504 and is embedded in the base 503, the clamping screw 502 passes through the limiting plate 501 and abuts against the clamping plate 505, the sample is located between the two clamping plates 505, the front baffle 508 and the rear baffle 507 are located on both sides of the sample, and the set screw 509 passes through the front baffle 508 and abuts against one end of the sample.

[0038] In the first embodiment, the sample is a cuboid sample 506 located between two clamping plates 505. The bottom of the cuboid sample 506 is in contact with the pad block 510. The pad block 510 is used to raise the cuboid sample 506 so that the upper surface of the cuboid sample 506 is in contact with the grinding ball 308.

[0039] Both the front baffle 508 and the rear baffle 507 have U-shaped holes, which are used to connect with the clamping plates 505 on both sides of the cuboid sample 506 via threads. At the same time, the front baffle 508 also has a threaded hole, and the set screw 509 is screwed into the threaded hole to make tight contact with one end of the cuboid sample 506.

[0040] The partition 504 has a cross-shaped structure, and the clamping plate 505 has a T-shaped slot, that is, the partition 504 can be inserted into the clamping plate 505 through the T-shaped slot.

[0041] The usage process of clamp assembly 5 in the first embodiment: 1) First install the partition 504 on the base 503, then fit the clamping plates 505 on both sides, connect the limiting plates 501 to both ends of the base 503, and screw the clamping screws 502 into the inside of the limiting plates 501 from the outside. 2) Place the pad 510 on the partition 504, then place the cuboid sample 506 on top, and then tighten the clamping screw 502 to achieve the initial pre-tightening of the cuboid sample 506. 3) Pass the screws through the U-shaped holes of the front baffle 508 and the rear baffle 507, and screw them into the threaded holes of the clamp 505 to achieve the initial fixation of the front baffle 508 and the rear baffle 507. 4) Screw the set screw 509 into the front baffle 508 and press it against one end of the cuboid sample 506. Continue to screw and tighten to achieve the front and rear limit of the sample. 5) Continue to tighten the clamping screw 502 to achieve the two-sided limit of the cuboid sample 506; finally, tighten the screw in the U-shaped hole to fix the front baffle 508 and the rear baffle 507.

[0042] The base 503 is mounted on the ball screw slider 403 by screws. When the ball screw slider 403 moves reciprocally in a linear motion, the base 503 drives the cuboid sample 506 to move back and forth, achieving reciprocating friction with the grinding ball 308. At this time, the force sensor 305 can simultaneously measure the reciprocating friction force and the normal force, thereby calculating the coefficient of friction.

[0043] The test procedure of the first embodiment of the multi-purpose adjustable load reciprocating friction and wear testing device: 1) Rotate the handwheel 301 to move the lifting platform 302 upward, ensuring that the grinding ball 308 does not come into contact with any component; 2) The cuboid sample 506 is installed and fixed by the clamping assembly 5. By adjusting the handwheel 301, the grinding ball 308 is initially in contact with the upper surface of the cuboid sample 506. 3) When the motor 407 is powered on, it outputs a very slow reciprocating rotational motion. The force sensor 305 collects the force signal, and the handwheel 301 is adjusted to make the positive pressure reach the test requirements. 4) Control the motor 407 to output the actual test speed, so that the upper surface of the cuboid sample 506 rubs back and forth with the grinding ball 308. Observe the change of friction force and wear state. After the experiment, evaluate the tribological properties of the material through material characterization.

[0044] In the second embodiment, the clamp assembly 5 includes a limiting plate 501, a base 503, a partition 504, a clamping plate 505, a perforated thin plate sample 511, an arc clamping plate 512, a pad 513, and a pressure nail 514; the partition 504 has a cross-shaped structure, and both ends of the partition 504 are installed in the base 503 by screws, the two limiting plates 501 are installed on both sides of the base 503 by screws, and the two clamping plates 505 pass through both ends of the partition 504 and are embedded in the grooves of the base 503.

[0045] The sample is a perforated thin plate sample 511. The perforated thin plate sample 511 has arc-shaped grooves on both sides. The perforated thin plate sample 511 is placed on the partition plate 504, and its two ends are embedded in the T-shaped slots of the clamping plate 505. A pad 513 is provided between the clamping plates 505 of the perforated thin plate sample. The arc-shaped clamping plate 512 is embedded in the arc-shaped groove of the perforated thin plate sample 511 and is installed on the partition plate 504 by screws.

[0046] The perforated thin plate sample 511 has arc-shaped grooves on both sides, forming a weak link in the middle to accelerate the damage process.

[0047] The usage process of clamp assembly 5 in the second embodiment: 1) First install the partition 504 on the base 503, then fit the clamps 505 on both sides, and connect the limiting plates 501 to both ends of the base; 2) Pass the perforated thin plate sample 511 through the groove of the clamping plate 505, place it on the partition plate 504, and place the pad 513 between the partition plate 504 and the perforated thin plate sample 511. 3) Place the arc-shaped clamping plate 512 on both sides of the perforated thin plate sample 511 and fix it to the partition plate 504 with screws; 4) Tighten the pressure pin 514 so that its bottom presses against the pad 513, and the perforated thin plate sample 511 is pressed through the pad 513.

[0048] The base 503 is mounted on the ball screw slider 403 by screws. When the ball screw slider 403 moves back and forth linearly, the base 503 drives the perforated thin plate sample 511 to move back and forth, realizing reciprocating friction with the grinding ball 308. At this time, the force sensor 305 can simultaneously measure the reciprocating friction force and the normal force, thereby calculating the coefficient of friction.

[0049] Specifically, the support assembly 2 includes a longitudinal beam 201, a transverse beam 202, a vertical beam 203, a fixing corner piece 204, and a connecting corner piece 205; the longitudinal beam 201 is arranged along the reciprocating motion direction, the transverse beam 202 is arranged perpendicular to the reciprocating motion direction, and the vertical beam 203 is arranged perpendicular to the optical platform 1. The longitudinal beam 201, the transverse beam 202, and the vertical beam 203 are connected to each other through the connecting corner piece 205, and the vertical beam 203 is connected to the optical platform 1 through the fixing corner piece 204.

[0050] The longitudinal beam 201, the transverse beam 202, and the vertical beam 203 are all made of aluminum profiles. The vertical beam 203 is connected to the optical platform 1 by fixing corner pieces 204 and aluminum profile screws (some not shown in the figure). The longitudinal beam 201, the transverse beam 202, and the vertical beam 203 are all connected by connecting corner pieces 205 and aluminum profile screws.

[0051] The guide assembly 6 includes two guide shaft mounting seats 601, a linear bearing 602, and an optical shaft 603. The guide shaft mounting seats 601 are mounted on the longitudinal beam 201, the linear bearing 602 is mounted on the transmission flange 304, and the optical shaft 603 passes through the guide shaft mounting seats 601 and the linear bearing 602, thereby ensuring that the positive pressure applied by the loading assembly 3 is always in the vertical direction and no lateral force occurs.

[0052] The test procedure of the second embodiment of the multi-purpose adjustable load reciprocating friction and wear testing device: 1) Rotate the handwheel 301 to move the trapezoidal lead screw 303 upward, ensuring that the grinding ball 308 does not come into contact with any component; 2) The perforated thin plate sample 511 is installed and fixed by the clamping assembly 5. By adjusting the handwheel 301, the grinding ball 308 makes initial contact with the upper surface of the weak part of the perforated thin plate sample 511. 3) When the motor 407 is powered on, it outputs a very slow reciprocating rotational motion. The force sensor 305 collects the force signal, and the handwheel 301 is adjusted to make the positive pressure reach the test requirements. 4) Control the motor 407 to output the actual test required speed, so that the upper surface of the perforated thin plate sample 511 rubs back and forth with the grinding ball 308, observe the change of friction force and wear state, and evaluate the tribological properties of the material through material characterization methods after the experiment. 5) After the tribological experiment is completed, static tensile, fatigue or vibration loads are applied to the perforated thin plate sample 511, and the remaining strength and remaining service life of the sample after wear are tested.

[0053] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A multi-purpose adjustable load reciprocating friction and wear testing device, characterized in that, include: An optical platform (1) and a support assembly (2), the support assembly (2) being mounted on the optical platform (1); The loading component (3) includes a handwheel (301), a lifting platform (302), a trapezoidal lead screw (303), a transmission flange (304), a force sensor (305), a top block (306), a ferrule (307), and a grinding ball (308). The lifting platform (302) is mounted on the support component (2), and a worm gear transmission mechanism is provided inside the lifting platform (302). The worm gear transmission mechanism is used to convert the rotation of the handwheel (301) into the lifting movement of the lifting platform (302). One end of the force sensor (305) is connected to the transmission flange (304), and the other end is connected to the top block (306). The grinding ball (308) is located between the top block (306) and the ferrule (307). The driving component (4) is located on the optical platform (1) and below the loading component (3). The driving component (4) is provided with a clamping component (5). The clamping component (5) is used to clamp the sample. The sample abuts against the grinding ball (308). The driving component (4) drives the clamping component (5) to perform reciprocating linear motion. The guide component (6) is located on the loading component (3) and connected to the support component (2).

2. The multi-purpose adjustable load reciprocating friction and wear testing device according to claim 1, characterized in that, The drive assembly (4) includes: a lead screw (402) and a ball screw slider (403), a motor (407), and a drive assembly mounting base; The drive assembly mounting base is located on the optical platform (1), the motor (407) is located on the drive assembly mounting base, the lead screw (402) passes through the drive assembly mounting base and is connected to the motor (407), the ball screw slider (403) is sleeved on the lead screw (402), and the clamp assembly (5) is located on the ball screw slider (403).

3. The multi-purpose adjustable load reciprocating friction and wear testing device according to claim 2, characterized in that, The drive assembly (4) also includes a support base (404), a coupling (405), a drive assembly base (408), a drive assembly mounting base, and a linear guide rail (411). The support base (404) and the linear guide rail (411) are mounted on the drive assembly mounting base. One end of the lead screw (402) is connected to the output shaft of the motor (407) through the coupling (405), and the other end passes through the support base (404) and the ball screw slider (403). The linear guide rail (411) is provided with a linear guide rail slider (409), and the bottom of the ball screw slider (403) is connected to the linear guide rail slider (409).

4. A multi-purpose adjustable load reciprocating friction and wear testing device according to any one of claims 1-3, characterized in that, The clamping assembly (5) includes a limiting plate (501), a clamping screw (502), a base (503), a partition (504), a clamping plate (505), a rear baffle (507), a front baffle (508), and a set screw (509). The limiting plate (501) is located on both sides of the base (503), the partition (504) is located inside the base (503), the clamping plate (505) passes through both ends of the partition (504) and is embedded in the base (503), the clamping screw (502) passes through the limiting plate (501) and abuts against the clamping plate (505), the sample is located between the two clamping plates (505), the front baffle (508) and the rear baffle (507) are located on both sides of the sample, and the set screw (509) passes through the front baffle (508) and abuts against one end of the sample.

5. The multi-purpose adjustable load reciprocating friction and wear testing device according to claim 4, characterized in that, The sample is a cuboid sample (506).

6. The multi-purpose adjustable load reciprocating friction and wear testing device according to claim 5, characterized in that, The clamping plate (505) is provided with a T-shaped slot.

7. The multi-purpose adjustable load reciprocating friction and wear testing device according to claim 6, characterized in that, The aforementioned is a perforated thin plate sample (511).

8. The multi-purpose adjustable load reciprocating friction and wear testing device according to claim 7, characterized in that, The perforated thin plate sample (511) has arc-shaped grooves on both sides. The perforated thin plate sample (511) is placed on the partition plate (504) and its two ends are embedded in the T-shaped grooves of the clamping plate (505). The arc clamping plate (512) is embedded in the arc-shaped grooves of the perforated thin plate sample (511).

9. A multi-purpose adjustable load reciprocating friction and wear testing device according to claim 2, characterized in that, The support assembly (2) includes a longitudinal beam (201), a transverse beam (202), a vertical beam (203), a fixing corner piece (204), and a connecting corner piece (205). The longitudinal beam (201) is arranged along the reciprocating motion direction, the transverse beam (202) is arranged perpendicular to the reciprocating motion direction, and the vertical beam (203) is arranged perpendicular to the optical platform (1). The longitudinal beam (201), the transverse beam (202), and the vertical beam (203) are connected to each other through the connecting corner piece (205), and the vertical beam (203) is connected to the optical platform (1) through the fixing corner piece (204).

10. A multi-purpose adjustable load reciprocating friction and wear testing device according to claim 2, characterized in that, The guide assembly (6) includes two guide shaft mounting seats (601), a linear bearing (602) and an optical shaft (603). The guide shaft mounting seats (601) are mounted on the longitudinal beam (201), the linear bearing (602) is located on the transmission flange (304), and the optical shaft (603) passes through the guide shaft mounting seats (601) and the linear bearing (602).

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