Friction-wear testing machine

Abstract

The utility model relates to a friction-wear testing machine which comprises a bottom plate, a supporting plate, a reciprocating assembly and a pressure applying assembly, the supporting plate is installed on the bottom plate, the reciprocating assembly and the pressure applying assembly are both arranged on the bottom plate, and a to-be-tested material is placed between the reciprocating assembly and the pressure applying assembly; the reciprocating assembly comprises a partition plate vertically installed on the upper surface of the supporting plate and a motor assembled on the supporting plate, and an eccentric wheel in transmission connection with the output end of the motor is arranged on the front side of the partition plate. According to the friction-wear testing machine, through cooperative work of the reciprocating assembly and the pressure applying assembly, the friction coefficient, the wear rate and the wear resistance of a to-be-tested material can be efficiently tested, various testing requirements are met, the design of a balancing weight in the pressure applying assembly allows a user to adjust the friction force between a friction pair and the to-be-tested material according to needs, and the testing efficiency is improved. The universality and practicability of the test equipment are improved, and the requirements under different test conditions are met.

Description

Technical Field

[0001] The utility model relates to the technical field of friction testing, in particular to a friction and wear testing machine. Background Art

[0002] Friction and wear testing machine, also known as friction testing machine, wear testing machine, is mainly used to evaluate the long-term anti-wear performance of lubricating oil. It can also be used for the research of special friction materials, such as the design, process performance and product development of friction materials, powder metallurgy friction materials and paper-based friction materials.

[0003] Common reciprocating friction and wear testing machines mainly use ball screws and electromagnetic oscillation as the driving methods to achieve reciprocating motion. Although these methods meet the basic requirements of friction testing to a certain extent, they each have significant limitations.

[0004] Specifically, while the ball screw drive method offers the flexibility to adjust large reciprocating strokes, the delay in the drive motor during commutation results in a relatively low reciprocating frequency. This drawback is particularly pronounced during long-stroke friction tests, as it significantly increases experimental time and reduces overall experimental efficiency.

[0005] On the other hand, the electromagnetic oscillation drive method can achieve high-frequency reciprocating motion, which is advantageous for scenarios requiring rapid testing. However, to ensure the stability of the oscillation frequency, the amplitude of the electromagnetic oscillation generator needs to be maintained within a specific range, which means that the reciprocating stroke cannot be adjusted arbitrarily. This limitation is obviously disadvantageous for experiments that require studying friction properties under different stroke conditions, as it limits the flexibility and depth of the experiment. Utility Model Content

[0006] In view of the deficiencies in the prior art, the present invention provides a friction and wear testing machine, which solves the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a friction and wear testing machine, comprising a base plate, a support plate, a reciprocating assembly and a pressure assembly;

[0008] The support plate is mounted on the bottom plate, the reciprocating assembly and the pressure assembly are both arranged on the bottom plate, and the material to be tested is placed between the reciprocating assembly and the pressure assembly;

[0009] The reciprocating assembly includes a partition vertically mounted on the upper surface of the support plate, and a motor mounted on the support plate. An eccentric wheel is provided on the front side of the partition wheel and is transmission-connected to the output end of the motor. A transmission shaft is rotationally connected to the eccentric wheel away from its axis. The end of the transmission shaft away from the eccentric wheel is hinged to a connecting rod through a hinge shaft.

[0010] The reciprocating assembly further comprises a slide seat mounted on the upper surface of the base plate, and a placement seat connected to the connecting rod in a sliding manner is slidably connected to the upper surface of the slide seat;

[0011] The pressure assembly includes two columns vertically installed on the upper surface of the base plate, and the two columns are spaced apart on the left and right sides of the slide seat. A lower pressure plate is slidably connected between the opposite sides of the two columns, and a friction pair is provided on the lower surface of the lower pressure plate, and the friction pair is in contact with the upper surface of the placement seat.

[0012] Furthermore, a positioning sleeve is provided on a side of the partition close to the connecting rod, and the positioning sleeve is provided on the outer side of the connecting rod.

[0013] Furthermore, a slide bar is vertically installed on one side of each of the two upright posts, and corresponding to the two slide bars, sliders are installed on the left and right sides of the lower pressing plate.

[0014] Furthermore, the two sliding blocks are respectively slidably connected to the outer sides of the two sliding bars.

[0015] Furthermore, at least one counterweight is placed on the upper surface of the lower pressing plate, and two guide rods are vertically arranged on the upper surface of the lower pressing plate.

[0016] Furthermore, corresponding to the guide rod, two through holes are opened inside the counterweight block, so that the counterweight block can be sleeved on the outside of the guide rod.

[0017] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0018] This friction and wear testing machine, through the coordinated work of the reciprocating component and the pressure component, can efficiently test the friction coefficient, wear rate and wear resistance of the test material, meeting a variety of testing needs. The design of the counterweight block in the pressure component allows the user to adjust the friction between the friction pair and the test material as needed, improving the versatility and practicality of the test equipment and meeting the needs under different test conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the reciprocating assembly structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the pressure component of the utility model;

[0022] Figure 4 This is a bottom view of the structure of the pressure component of the present invention.

[0023] In the figure: 1. Base plate; 2. Support plate; 3. Reciprocating assembly; 301. Partition; 302. Motor; 303. Eccentric wheel; 304. Transmission shaft; 305. Connecting rod; 306. Slide; 307. Placement seat; 308. Positioning sleeve; 4. Pressure assembly; 401. Column; 402. Lower pressure plate; 403. Friction pair; 404. Slide bar; 405. Slider; 406. Counterweight; 407. Guide rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1 A friction and wear testing machine in this embodiment includes a base plate 1, a support plate 2, a reciprocating assembly 3 and a pressure assembly 4; the support plate 2 is installed on the base plate 1, the reciprocating assembly 3 and the pressure assembly 4 are both arranged on the base plate 1, and the material to be tested is placed between the reciprocating assembly 3 and the pressure assembly 4.

[0026] During actual use, the material to be tested is placed between the pressure component 4 and the reciprocating component 3. The reciprocating component 3 drives the material to be tested to move back and forth, and at the same time, the material to be tested and the pressure component 4 are rubbed, thereby testing the friction coefficient, wear rate and wear resistance of the material to be tested.

[0027] See also Figure 2 In order to achieve reciprocating motion of the material to be tested, the reciprocating assembly 3 in this embodiment includes a partition 301 vertically mounted on the upper surface of the support plate 2, and a motor 302 mounted on the support plate 2. An eccentric wheel 303 is provided on the front side of the partition 301 and is transmission-connected to the output end of the motor 302. A transmission shaft 304 is rotationally connected to the eccentric wheel 303 away from its axis. The end of the transmission shaft 304 away from the eccentric wheel 303 is hinged to a connecting rod 305 via a hinge shaft.

[0028] The reciprocating assembly 3 further includes a slide 306 mounted on the upper surface of the base plate 1 , and a placement seat 307 in transmission connection with the connecting rod 305 is slidably connected to the upper surface of the slide 306 .

[0029] During actual use, the material to be tested is placed on the placement seat 307, and the motor 302 drives the eccentric wheel 303 to rotate, so that the transmission shaft 304 and the end thereof connected to the rotation thereof rotate accordingly, and when the transmission shaft 304 rotates with the center of the eccentric wheel 303 as the base point, it drives the connecting rod 305 and the placement seat 307 to slide back and forth, and the placement seat 307 slides on the outside of the slide 306, and the material to be tested placed on its upper surface is in a state of reciprocating motion back and forth at the same time, and the cooperation with the pressure component 4 is used to test the friction coefficient, wear rate and wear resistance of the material to be tested.

[0030] Furthermore, in order to ensure that the connecting rod 305 can only move linearly forward and backward, a positioning sleeve 308 is provided on the side of the partition 301 close to the connecting rod 305 , and the positioning sleeve 308 is sleeved on the outer side of the connecting rod 305 .

[0031] See also Figure 3-4 In order to achieve a friction effect on the material to be tested, the pressure assembly 4 in this embodiment includes two columns 401 vertically installed on the upper surface of the base plate 1. The two columns 401 are arranged at intervals on the left and right sides of the slide 306. A lower pressure plate 402 is slidably connected between the opposite sides of the two columns 401. A friction pair 403 is provided on the lower surface of the lower pressure plate 402, and the friction pair 403 is in contact with the upper surface of the placement seat 307.

[0032] In actual use, the material to be tested is placed between the placement seat 307 and the friction pair 403 , and the placement seat 307 moves back and forth to cause the material to be tested to rub against the friction pair 403 .

[0033] Furthermore, in order to facilitate the adjustment of the friction force between the friction pair 403 and the material to be tested, at least one counterweight block 406 is placed on the upper surface of the lower pressure plate 402 in this embodiment, and two guide rods 407 are vertically arranged on the upper surface of the lower pressure plate 402. Corresponding to the guide rods 407, two through holes are opened inside the counterweight block 406 so that the counterweight block 406 can be mounted on the outside of the guide rod 407.

[0034] In actual use, by adjusting the number of counterweights 406 on the lower pressure plate 402, the friction between the friction pair 403 and the material to be tested is adjusted, thereby adapting to the specific requirements for friction under different testing needs, thereby improving the versatility and practicality of the testing equipment.

[0035] During actual setting, the two through holes on the counterweight 406 are aligned with the guide rod 407 to ensure that the center of gravity of the counterweight 406 placed on the lower pressure plate 402 is located on the same vertical line, so as to ensure accurate pressure on the friction pair 403.

[0036] In addition, in order to improve the stability of the up and down movement of the lower pressure plate 402, sliding bars 404 are vertically installed on the opposite sides of the two columns 401. Corresponding to the two sliding bars 404, sliders 405 are installed on the left and right sides of the lower pressure plate 402. The two sliders 405 are respectively slidably connected to the outer sides of the two sliding bars 404.

[0037] During actual use, by installing the slide bar 404 on the opposite side of the column 401 and installing sliders 405 slidably connected to the slide bar 404 on the left and right sides of the lower pressure plate 402, the stability of the lower pressure plate 402 during the up and down movement is effectively enhanced, and the shaking and deviation are reduced. Moreover, the cooperation between the slide bar 404 and the slider 405 provides a clear guide for the lower pressure plate 402, ensuring that the lower pressure plate 402 can move along the predetermined path, thereby improving the accuracy and reliability of the operation.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A friction and wear testing machine, characterized in that: It comprises a base plate (1), a support plate (2), a reciprocating assembly (3) and a pressure assembly (4); The support plate (2) is mounted on the base plate (1), the reciprocating assembly (3) and the pressure assembly (4) are both arranged on the base plate (1), and a material to be tested is placed between the reciprocating assembly (3) and the pressure assembly (4); The reciprocating assembly (3) comprises a partition (301) vertically mounted on the upper surface of the support plate (2), and a motor (302) mounted on the support plate (2); an eccentric wheel (303) transmission-connected to the output end of the motor (302) is provided on the front side of the partition (301); a transmission shaft (304) is rotationally connected to the eccentric wheel (303) away from its axis; and one end of the transmission shaft (304) away from the eccentric wheel (303) is hinged to a connecting rod (305) via a hinge shaft; The reciprocating assembly (3) further comprises a slide seat (306) mounted on the upper surface of the base plate (1), and a placement seat (307) in transmission connection with the connecting rod (305) is slidably connected to the upper surface of the slide seat (306); The pressure assembly (4) includes two columns (401) vertically mounted on the upper surface of the base plate (1), the two columns (401) are spaced apart and arranged on the left and right sides of the slide seat (306), a lower pressure plate (402) is slidably connected between the opposite sides of the two columns (401), a friction pair (403) is provided on the lower surface of the lower pressure plate (402), and the friction pair (403) is in contact with the upper surface of the placement seat (307).

2. A friction and wear testing machine according to claim 1, characterized in that: A positioning sleeve (308) is provided on one side of the partition (301) close to the connecting rod (305), and the positioning sleeve (308) is sleeved on the outer side of the connecting rod (305).

3. The friction and wear testing machine according to claim 1, characterized in that: Slide bars (404) are vertically installed on opposite sides of the two uprights (401), and corresponding to the two slide bars (404), sliders (405) are installed on the left and right sides of the lower pressing plate (402).

4. A friction and wear testing machine according to claim 3, characterized in that: The two sliding blocks (405) are respectively slidably connected to the outer sides of the two sliding bars (404).

5. The friction and wear testing machine according to claim 1, characterized in that: At least one counterweight (406) is placed on the upper surface of the lower pressing plate (402), and two guide rods (407) are vertically arranged on the upper surface of the lower pressing plate (402).

6. A friction and wear testing machine according to claim 5, characterized in that: Corresponding to the guide rod (407), two through holes are opened inside the counterweight block (406), so that the counterweight block (406) can be sleeved on the outside of the guide rod (407).

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