Pin-disc type friction-wear testing machine

Abstract

The utility model relates to the technical field of friction-wear testing machines, and discloses a pin-disc type friction-wear testing machine which comprises a base, an installation disc is arranged on the upper surface of the base, a grinding disc is arranged on the upper surface of the installation disc, a cylindrical shell is connected in the grinding disc in a sliding mode, and the side wall of the cylindrical shell penetrates through the installation disc. A pressing block is slidably connected to the interior of the cylindrical shell, a first fixing block is fixedly connected to the side wall of the pressing block, one side wall of the fixing block is slidably connected to the interior of the cylindrical shell, a spring sleeves the side wall of the pressing block, and one end of the spring is fixedly connected to one side wall of the fixing block. According to the device, the pressing block is pressed to slide downwards in the cylindrical shell, the spring is shrunk, the second fixing block slides downwards, the sliding ball slides into the cylindrical shell, then the cylindrical shell penetrates through the grinding disc, the effect of rapidly installing the grinding disc is achieved, and the working efficiency of the device is improved through the structure.

Description

Technical Field

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

[0002] Tribometers are specialized equipment used to evaluate the performance and durability of material surfaces subjected to friction and wear. These machines are commonly used in a variety of applications, including engineering, materials research, and lubricant development. They simulate the friction and wear processes found in real-world operating conditions, thereby assessing the quality, durability, and reliability of materials. A pin-on-disc tribometer is a specific type of tribometer typically used to evaluate the friction and wear properties of materials. This type of testing machine is distinguished by the contact method between the test specimen and the control sample, as well as the test design.

[0003] The traditional pin-on-disc friction and wear testing machine consists of a main frame, a grinding disc, a control sample support device and other parts. Before conducting the friction and wear test, the operator needs to set the test parameters and fix the sample to be tested on the grinding disc to ensure that the surface contact between the sample and the grinding disc is smooth and close. The control system applies a predetermined load to the sample surface through the load sensor according to the set parameters, and the electric drive system starts to rotate the pin-on-disc. During the test, the control system records and monitors the changes in friction force, the wear condition of the sample surface and other data in real time through the data acquisition system.

[0004] The traditional pin-on-disc friction and wear testing machine has a complicated grinding disc installation method. When the grinding disc needs to be replaced and repaired, it is inconvenient to disassemble, which increases the complexity of operation and maintenance time. Therefore, a pin-on-disc friction and wear testing machine is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a pin-disc friction and wear testing machine, which aims to improve the problem that the grinding disc installation method in the existing technology is relatively cumbersome, and it is inconvenient to disassemble when the grinding disc needs to be replaced and repaired, thereby increasing the complexity of operation and maintenance time.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] The cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame.

[0008] As a further description of the above technical solution:

[0009] The upper surface of the base is fixedly connected to a side plate, the lower surface of the side plate is provided with a second mounting plate, the upper surface of the second mounting plate is fixedly connected to the second motor, the output end of the second motor is fixedly connected to a rotating column, the lower surface of the second mounting plate is fixedly connected to a third fixing block, the side wall of the third fixing block is slidably connected to a slider, the lower surface of the slider is fixedly connected to a clamping block, and the side wall of the clamping block is provided with an auxiliary component for protecting the test piece;

[0010] As a further description of the above technical solution:

[0011] The auxiliary component includes a rubber block, and the side wall of the rubber block is fixedly connected to the side wall of the clamping block;

[0012] As a further description of the above technical solution:

[0013] The lower surface of the side plate is fixedly connected to a mounting plate 1, and the lower surface of the mounting plate is fixedly connected to a hydraulic rod;

[0014] As a further description of the above technical solution:

[0015] The output end of the hydraulic rod is fixedly connected to a fixing plate, the lower surface of the fixing plate is fixedly connected to a second support column, and one end of the second support column is fixedly connected to the upper surface of the second mounting plate;

[0016] As a further description of the above technical solution:

[0017] The side wall of the rotating column is rotatably connected to the inside of the second mounting plate, and the side wall of the rotating column is fixedly connected to a rotating block;

[0018] As a further description of the above technical solution:

[0019] A rotating bar is rotatably connected inside the rotating block, and one side of the rotating bar is rotatably connected to the upper surface of the clamping block;

[0020] As a further description of the above technical solution:

[0021] The upper surface of the base is fixedly connected to a support column 1, the upper end of the support column 1 is fixedly connected to a workbench, the side wall of the mounting plate is rotatably connected to the inside of the workbench, the lower surface of the workbench is fixedly connected to a motor 1, and the output end of the motor 1 is fixedly connected to the lower surface of the mounting plate.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, by pressing the pressing block, it slides downward inside the cylindrical shell, causing the spring to contract, and then the fixed block slides down, causing the sliding ball to slide into the cylindrical shell, and then the cylindrical shell is passed through the grinding disc, and then passed through the mounting disc, so as to achieve the effect of quick installation of the grinding disc, and solve the problem that the installation method of the grinding disc of some pin-disc friction and wear testing machines is relatively cumbersome, and it is inconvenient to disassemble when the grinding disc needs to be replaced and repaired, thereby increasing the complexity of operation and maintenance time. The above structure improves the working efficiency of the equipment.

[0024] 2. In the utility model, by starting the second motor, the rotating column drives the rotating block to rotate, and the rotating bar drives the clamping block to slide on the third fixed block through the slider, thereby achieving the clamping effect of test pieces of different sizes. This solves the problem that the clamping device of some pin-on-disc friction and wear testing machines cannot be flexibly adjusted according to different test piece sizes, thereby limiting the practicality and application range of the testing machine. The above structure improves the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a pin-on-disc friction and wear testing machine proposed in the present invention;

[0026] Figure 2 This is a schematic structural diagram of a cross-section of a cylindrical housing of a pin-on-disc friction and wear testing machine proposed in the present invention;

[0027] Figure 3 The present invention provides a schematic structural diagram of the two parts of the mounting plate of a pin-on-disc friction and wear testing machine.

[0028] Legend:

[0029] 1. Base; 2. Fixed plate; 3. Support column 1; 4. Workbench; 5. Motor 1; 6. Mounting plate; 7. Grinding plate; 8. Column housing; 9. Pressing block; 10. Fixed block 1; 11. Spring; 12. Column block 1; 13. Fixed block 2; 14. Column block 2; 15. Sliding ball; 16. Slot; 17. Side plate; 18. Mounting plate 1; 19. Hydraulic rod; 20. Fixed plate; 21. Support column 2; 22. Mounting plate 2; 23. Motor 2; 24. Fixed block 3; 25. Slider; 26. Clamping block; 27. Rubber block; 28. Rotating column; 29. ​​Rotating block; 30. Rotating bar. DETAILED DESCRIPTION

[0030] 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.

[0031] Reference Figure 1 and Figure 2 The utility model provides an embodiment of a pin-disc friction and wear testing machine, comprising a base 1, a mounting disc 6 is provided on the upper surface of the base 1, a grinding disc 7 is provided on the upper surface of the mounting disc 6, a cylindrical shell 8 is slidably connected inside the grinding disc 7, the side wall of the cylindrical shell 8 passes through the mounting disc 6, a pressing block 9 is slidably connected inside the cylindrical shell 8, a fixed block 10 is fixedly connected to the side wall of the pressing block 9, the side wall of the fixed block 10 is slidably connected to the inside of the cylindrical shell 8, a spring 11 is sleeved on the side wall of the pressing block 9, one end of the spring 11 is fixedly connected to the side wall of the fixed block 10, and the other end of the spring 11 is fixedly connected to the inside of the cylindrical shell 8, and a cylindrical block 12 is fixedly connected to the lower surface of the pressing block 9. The side wall of the cylindrical block 12 is fixedly connected to the fixed block 2 13, and the bottom of the cylindrical block 12 is fixedly connected to the cylindrical block 2 14. A card slot 16 is opened inside the cylindrical shell 8, and a sliding ball 15 is provided inside the cylindrical shell 8. The side wall of the sliding ball 15 is slidably connected to the inside of the card slot 16. The side wall of the fixed block 2 13 fits the side wall of the sliding ball 15, and the side wall of the sliding ball 15 fits the lower surface of the mounting plate 6. The upper surface of the base 1 is fixedly connected to 2, and the upper surface of 2 is fixedly connected to the support column 1 3. The upper end of the support column 3 is fixedly connected to the workbench 4. The side wall of the mounting plate 6 is rotatably connected to the inside of the workbench 4. The lower surface of the workbench 4 is fixedly connected to the motor 1 5, and the output end of the motor 5 is fixedly connected to the lower surface of the mounting plate 6;

[0032] During the operation of the friction and wear test, when the grinding disc 7 needs to be replaced, the operator first needs to press the pressing block 9 by applying pressure, so that the fixed block 10 squeezes the spring 11, thereby causing the spring 11 to contract. As the spring 11 contracts, the cylindrical block 12 drives the fixed block 2 13 to move, thereby releasing the squeezing force of the sliding ball 15. Then, by lifting the cylindrical shell 8, the sliding ball 15 slides into the interior of the cylindrical shell 8. At this time, the cylindrical shell 8 can be removed from the grinding disc 7. At this time, the fixed connection between the grinding disc 7 and the mounting disc 6 is released, so that the grinding disc 7 can be removed for replacement. When a new grinding disc 7 needs to be installed on the mounting disc 6, the grinding disc 7 is first accurately docked with the mounting disc 6, and then the process is repeated. The previous operation steps are as follows: by pressing the pressing block 9, the fixed block 10 squeezes the spring 11, causing it to shrink. This action will cause the cylindrical block 12 to drive the fixed block 2 13 to slide down, releasing the squeezing force of the sliding ball 15 again, and then place the cylindrical shell 8 into the interior of the grinding disc 7, and ensure that it passes through the mounting plate 6. Then release the pressing block 9, so that the spring 11 can be released from the squeezed state and rebound. As the spring 11 rebounds, the fixed block 10 will restore the pressing block 9 to its initial position. At the same time, the cylindrical block 12 will also drive the fixed block 2 13 to move upward, squeezing the sliding ball 15 out of the interior of the cylindrical shell 8. At this time, the side wall of the sliding ball 15 will fit tightly against the lower surface of the mounting plate 6, completing the installation of the grinding disc 7.

[0033] Reference Figure 1 and Figure 3 The upper surface of the base 1 is fixedly connected to a side plate 17, and the lower surface of the side plate 17 is provided with a mounting plate 22. The upper surface of the mounting plate 22 is fixedly connected to a motor 23, and the output end of the motor 23 is fixedly connected to a rotating column 28. The lower surface of the mounting plate 22 is fixedly connected to a fixed block 3 24. The side wall of the fixed block 3 24 is slidably connected to a slider 25. The lower surface of the slider 25 is fixedly connected to a clamping block 26. The side wall of the clamping block 26 is provided with an auxiliary component for protecting the test piece. The auxiliary component includes a rubber block 27. The side wall of the rubber block 27 is fixedly connected to the side of the clamping block 26. Wall, the lower surface of the side plate 17 is fixedly connected to the mounting plate 18, the lower surface of the mounting plate 18 is fixedly connected to the hydraulic rod 19, the output end of the hydraulic rod 19 is fixedly connected to the fixing plate 20, the lower surface of the fixing plate 20 is fixedly connected to the support column 21, one end of the support column 21 is fixedly connected to the upper surface of the mounting plate 22, the side wall of the rotating column 28 is rotatably connected to the inside of the mounting plate 22, the side wall of the rotating column 28 is fixedly connected to the rotating block 29, the rotating block 29 is rotatably connected to the rotating bar 30, and one side of the rotating bar 30 is rotatably connected to the upper surface of the clamping block 26.

[0034] During the adjustment process of clamping block 26, the first step is to start motor 23. This activates motor 23, driving the connected rotating column 28 to begin rotating. As rotating column 28 rotates, the connected rotating block 29 also follows, causing rotating bar 30 to rotate as well. This rotation of rotating bar 30 pulls clamping block 26, ensuring that clamping block 26 can be accurately adjusted to the desired position.

[0035] Working principle: When using the equipment to conduct friction and wear tests, when it is necessary to replace the grinding disc 7, first press the pressing block 9 to make the fixed block 10 squeeze the spring 11 to make it shrink, and let the cylindrical block 12 drive the fixed block 2 13 to slide down, so that the sliding ball 15 loses the squeezing force, and then push the cylindrical shell 8 upward to make the sliding ball 15 slide into the cylindrical shell 8, and then take the cylindrical shell 8 out from the inside of the grinding disc 7. At this time, the grinding disc 7 and the mounting disc 6 are directly unfixed, and the grinding disc 7 can be removed and replaced. When it is necessary to install the grinding disc 7, first dock the grinding disc 7 with the mounting disc 6, and then press the pressing block 9 to make the fixed block 10 squeeze the spring 11 to make it shrink, and let the cylindrical block 12 drive the fixed block 2 13 to slide down, so that the sliding ball 15 loses the squeezing force, and then push the cylindrical shell 8 upward to make the sliding ball 15 slide into the cylindrical shell 8, and then take the cylindrical shell 8 out from the inside of the grinding disc 7. The ball 15 loses the extrusion force, and then the cylindrical shell 8 is placed inside the grinding disc 7 and then passed through the mounting disc 6. At this time, the pressing block 9 is released, so that the spring 11 loses the extrusion and rebounds, thereby returning the pressing block 9 to its original position through the fixed block 10, and allowing the cylindrical block 12 to drive the fixed block 2 13 to move upward, squeezing the sliding ball 15 out of the cylindrical shell 8, so that the side wall of the sliding ball 15 fits and is stuck on the lower surface of the mounting disc 6. At this time, the installation of the grinding disc 7 is completed. When the clamping block 26 needs to be adjusted, first start the motor 2 23 to drive the rotating column 28 to rotate, and through the rotation of the rotating column 28, drive the rotating block 29 to rotate, and then rotate the rotating bar 30, and then pull the clamping block 26 to slide on the side wall of the fixed block 3 24 through the slider 25, so as to achieve the adjustment effect of the clamping block 26.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pin-on-disc friction and wear testing machine, comprising a base (1), characterized in that: The upper surface of the base (1) is provided with a mounting plate (6), the upper surface of the mounting plate (6) is provided with a grinding plate (7), the grinding plate (7) is slidably connected to a cylindrical shell (8) inside, the side wall of the cylindrical shell (8) passes through the mounting plate (6), the cylindrical shell (8) is slidably connected to a pressing block (9) inside, the side wall of the pressing block (9) is fixedly connected to a fixed block (10), the side wall of the fixed block (10) is slidably connected to the inside of the cylindrical shell (8), the side wall of the pressing block (9) is sleeved with a spring (11), one end of the spring (11) is fixedly connected to the side wall of the fixed block (10), the spring (11) is ) The other end is fixedly connected to the inside of the cylindrical shell (8), the lower surface of the pressing block (9) is fixedly connected to the cylindrical block one (12), the side wall of the cylindrical block one (12) is fixedly connected to the fixed block two (13), the bottom of the cylindrical block one (12) is fixedly connected to the cylindrical block two (14), a slot (16) is provided inside the cylindrical shell (8), a sliding ball (15) is provided inside the cylindrical shell (8), the side wall of the sliding ball (15) is slidably connected to the inside of the slot (16), the side wall of the fixed block two (13) is in contact with the side wall of the sliding ball (15), and the side wall of the sliding ball (15) is in contact with the lower surface of the mounting plate (6).

2. The pin-on-disc friction and wear testing machine according to claim 1, characterized in that: The upper surface of the base (1) is fixedly connected to a side plate (17), the lower surface of the side plate (17) is provided with a second mounting plate (22), the upper surface of the second mounting plate (22) is fixedly connected to a second motor (23), the output end of the second motor (23) is fixedly connected to a rotating column (28), the lower surface of the second mounting plate (22) is fixedly connected to a third fixing block (24), the side wall of the third fixing block (24) is slidably connected to a slider (25), the lower surface of the slider (25) is fixedly connected to a clamping block (26), and the side wall of the clamping block (26) is provided with an auxiliary component for protecting the test piece.

3. The pin-on-disc friction and wear testing machine according to claim 2, characterized in that: The auxiliary component comprises a rubber block (27), the side wall of the rubber block (27) being fixedly connected to the side wall of the clamping block (26).

4. The pin-on-disc friction and wear testing machine according to claim 2, characterized in that: The lower surface of the side plate (17) is fixedly connected to a mounting plate (18), and the lower surface of the mounting plate (18) is fixedly connected to a hydraulic rod (19).

5. The pin-on-disc friction and wear testing machine according to claim 4, characterized in that: The output end of the hydraulic rod (19) is fixedly connected to a fixing plate (20), the lower surface of the fixing plate (20) is fixedly connected to a second support column (21), and one end of the second support column (21) is fixedly connected to the upper surface of the second mounting plate (22).

6. The pin-on-disc friction and wear testing machine according to claim 2, characterized in that: The side wall of the rotating column (28) is rotatably connected to the inside of the second mounting plate (22), and the side wall of the rotating column (28) is fixedly connected to a rotating block (29).

7. The pin-on-disc friction and wear testing machine according to claim 6, characterized in that: A rotating bar (30) is rotatably connected inside the rotating block (29), and one side of the rotating bar (30) is rotatably connected to the upper surface of the clamping block (26).

8. The pin-on-disc friction and wear testing machine according to claim 1, characterized in that: The upper surface of the base (1) is fixedly connected to (2), the upper surface of the (2) is fixedly connected to a support column (3), the upper end of the support column (3) is fixedly connected to a workbench (4), the side wall of the mounting plate (6) is rotatably connected to the inside of the workbench (4), the lower surface of the workbench (4) is fixedly connected to a motor (5), and the output end of the motor (5) is fixedly connected to the lower surface of the mounting plate (6).

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