A carrier abrasive replacing mechanism for a sliding friction tester

Abstract

The utility model discloses a kind of carrier abrasive replacement mechanisms for sliding friction testing machine, it is related to the technical field of friction testing machine, including friction test bench, the bottom end surface of one side of the friction test bench is fixedly connected with bottom end connecting disc, the bottom end surface of one side of the bottom end connecting disc is fixedly connected with lifting motor, lifting motor one side top end drive connection has lifting connecting rod, the lifting connecting rod one side top end fixedly connected with carrier table, the top end of the side of the friction test bench is fixedly connected with connecting arm, the top end surface of one side of the connecting arm is fixedly connected with test top disc. By setting the top end of carrier table and placing the material to be detected, by main force driving motor control driving screw rod rotation, drive limit sliding top disc to realize position sliding adjustment inside limit sliding groove, in the process of moving again, the rotation of contact friction roller is controlled by rotating motor, the surface contact friction of contact friction roller and material is utilized, and friction detection operation is realized.

Description

Technical Field

[0001] This utility model relates to the field of friction testing machine technology, and in particular to a carrier abrasive replacement mechanism for a sliding friction testing machine. Background Technology

[0002] Sliding friction and wear testing machines are indispensable key equipment in materials science, surface engineering, lubricant development, and product quality control. They evaluate core performance parameters of materials, such as friction coefficient, wear rate, and wear life, by simulating relative sliding under specific working conditions. In these tests, the interaction between the test sample (usually fixed to the upper fixture) and the grinding material (usually an abrasive or grinding ring / block, fixed to the carrier or lower fixture) is the core of the test. Currently, mainstream sliding friction testing machines, when performing tests in modes such as "pin-disc" or "block-ring," typically design their carrier section as a fixed or simply clamped structure. When it is necessary to change the abrasive, operators usually need to manually loosen multiple fastening screws using special tools (such as wrenches and screwdrivers), remove the old abrasive, clean the carrier mounting surface, place the new abrasive, and then realign and tighten the screws. The entire process is time-consuming and labor-intensive. Therefore, we have redesigned a carrier abrasive changing mechanism for sliding friction testing machines. Utility Model Content

[0003] The purpose of this invention is to provide a carrier abrasive replacement mechanism for a sliding friction testing machine.

[0004] To solve the above technical problems, this utility model provides the following technical solution: a carrier abrasive replacement mechanism for a sliding friction testing machine, comprising a friction testing platform, a bottom connecting plate fixedly connected to one side of the bottom surface of the friction testing platform, a lifting motor fixedly connected to one side of the bottom surface of the bottom connecting plate, a lifting connecting rod driven to one side of the top of the lifting motor, a carrier platform fixedly connected to one side of the lifting connecting rod, a connecting arm fixedly connected to one side of the top of the friction testing platform, a test top plate fixedly connected to one side of the top surface of the connecting arm, a limiting sliding groove formed on the top surface of the test top plate, a driving threaded rod rotatably connected inside the limiting sliding groove, a limiting sliding top plate movably connected to one side of the driving threaded rod, a friction contactor fixedly connected to one side of the bottom surface of the limiting sliding top plate, a contact friction roller rotatably connected to one side of the bottom of the friction contactor, a rotating motor fixedly installed on the side of the friction contactor, and a main drive motor fixedly connected to the side of the test top plate.

[0005] Preferably, the connection between the main drive motor and the drive threaded rod is a drive connection, the drive threaded rod passes through the interior of the limiting sliding top plate, the connection between the drive threaded rod and the limiting sliding top plate is a threaded drive connection, the limiting sliding top plate is located inside the limiting sliding groove, and the connection between the test top plate and the limiting sliding top plate is a sliding connection.

[0006] Preferably, a limiting groove is formed on the top surface of the friction test bench, the carrier platform is located inside the limiting groove, and the connection between the rotating motor and the contact friction roller is a drive connection.

[0007] Preferably, there are four bottom connecting plates, which are symmetrically distributed on the bottom surface of the friction test platform. The positions of the bottom connecting plates and the lifting motors correspond one-to-one. There are also four connecting arms, which are symmetrically distributed between the friction test platform and the test top plate.

[0008] Preferably, a clamping plate is fixedly connected to one top surface of the carrier platform, a clamping motor is fixedly connected to one top surface of the clamping plate, a telescopic rod is driven to one bottom end of the clamping motor, a pressing base is fixedly connected to one bottom end of the telescopic rod, a supporting column is fixedly connected to one bottom end of the friction test platform, and a supporting stabilizing plate is fixedly connected to one bottom end of the supporting column.

[0009] Preferably, the positions of the clamping and fixing discs and the clamping and fixing motors correspond one-to-one, and there are two clamping and fixing discs. The two clamping and fixing discs are symmetrically distributed on the top surface of the carrier platform, and the cross-sectional length of the extrusion base plate is the same as the cross-sectional width of the carrier platform.

[0010] Compared with related technologies, the abrasive replacement mechanism for the sliding friction testing machine provided by this utility model has the following advantages: 1. This utility model provides a carrier abrasive replacement mechanism for a sliding friction testing machine. The material to be tested is placed on the top of the carrier platform. The main drive motor controls the rotation of the drive threaded rod, which drives the limiting sliding top plate to slide and adjust its position inside the limiting sliding groove. During the movement, the rotation motor controls the rotation of the contact friction roller. The friction test is achieved by the contact friction roller and the surface of the material making contact friction. Multiple lifting motors at the bottom of the friction testing platform control the extension and retraction of the lifting connecting rod, controlling the position and height adjustment of the carrier platform. This achieves a precise contact effect between the material at the top of the carrier platform and the contact friction roller, ensuring the flexibility of the carrier platform in use.

[0011] 2. This utility model provides a carrier abrasive replacement mechanism for a sliding friction testing machine. By setting clamping and fixing plates on both sides of the top of the carrier platform, the extension and retraction of the telescopic rod is controlled by the clamping and fixing motor to adjust the position and height of the extrusion base. The extrusion between the extrusion base and the carrier platform is used to fix the material, ensuring the stability of subsequent testing. The contact area between the extrusion base and the carrier platform is large, which improves the stability of the clamping between the extrusion base and the carrier platform and improves the accuracy 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 view of the device of this utility model; Figure 3 This is a schematic diagram of the disassembled side view of the friction test bench and the carrier platform of this utility model. Figure 4 This is a schematic diagram of the vehicle fixing mechanism of this utility model.

[0013] The following are the labeling elements in the diagram: 1. Friction test bench; 2. Bottom connecting plate; 3. Lifting motor; 4. Lifting connecting rod; 5. Carrier platform; 6. Connecting arm; 7. Test top plate; 8. Limiting sliding groove; 9. Drive threaded rod; 10. Limiting sliding top plate; 11. Friction contactor; 12. Contact friction roller; 13. Rotating motor; 14. Main drive motor; 15. Limiting groove; 16. Clamping fixing plate; 17. Clamping fixing motor; 18. Telescopic rod; 19. Extrusion base plate; 20. Support base column; 21. Support stabilizing plate. Detailed Implementation

[0014] Example 1: Please see Figure 1-4This utility model provides a technical solution: an abrasive replacement mechanism for a sliding friction testing machine, comprising a friction testing platform 1, a bottom connecting plate 2 fixedly connected to one side of the bottom surface of the friction testing platform 1, a lifting motor 3 fixedly connected to one side of the bottom surface of the bottom connecting plate 2, a lifting connecting rod 4 driven and connected to one side of the top of the lifting motor 3, a carrier platform 5 fixedly connected to one side of the top of the lifting connecting rod 4, a connecting arm 6 fixedly connected to the top of the side of the friction testing platform 1, a test top plate 7 fixedly connected to one side of the top surface of the connecting arm 6, a limiting sliding groove 8 formed on the top surface of the test top plate 7, a driving threaded rod 9 rotatably connected inside the limiting sliding groove 8, a limiting sliding top plate 10 movably connected to one side of the driving threaded rod 9, a friction contactor 11 fixedly connected to one side of the bottom surface of the limiting sliding top plate 10, a contact friction roller 12 rotatably connected to one side of the bottom of the friction contactor 11, and a contact top plate 10 rotatably connected to one side of the friction contactor 11. A rotating motor 13 is fixedly installed. A main drive motor 14 is fixedly connected to the top side of the test top plate 7. The main drive motor 14 and the drive threaded rod 9 are connected by a drive connection. The drive threaded rod 9 passes through the interior of the limiting sliding top plate 10. The drive threaded rod 9 and the limiting sliding top plate 10 are connected by a threaded drive connection. The limiting sliding top plate 10 is located inside the limiting sliding groove 8. The test top plate 7 and the limiting sliding top plate 10 are connected by a sliding connection. A limiting groove 15 is opened on the top surface of the friction test table 1. The carrier table 5 is located inside the limiting groove 15. The rotating motor 13 and the contact friction roller 12 are connected by a drive connection. There are four bottom connecting plates 2. The four bottom connecting plates 2 are symmetrically distributed on the bottom surface of the friction test table 1. The positions of the bottom connecting plates 2 and the lifting motor 3 correspond one-to-one. There are four connecting arms 6. The four connecting arms 6 are symmetrically distributed between the friction test table 1 and the test top plate 7.

[0015] In the implementation plan, the material to be tested is placed on the top of the carrier platform 5. The main drive motor 14 controls the rotation of the drive threaded rod 9, which drives the limiting sliding top plate 10 to slide and adjust its position inside the limiting sliding groove 8. During the movement, the rotation motor 13 controls the rotation of the contact friction roller 12. The contact friction roller 12 and the material surface are contacted and rubbed to achieve friction detection. The lifting motors 3 at multiple positions at the bottom of the friction test platform 1 control the extension and retraction of the lifting connecting rod 4 to control the position height adjustment of the carrier platform 5, thereby achieving a precise contact effect between the material at the top of the carrier platform 5 and the contact friction roller 12, ensuring the flexibility of the carrier platform 5 in use.

[0016] Example 2: Please see Figure 1-4This utility model provides a technical solution: an abrasive replacement mechanism for a sliding friction testing machine, comprising a clamping and fixing plate 16 fixedly connected to one side of the top surface of the carrier platform 5, a clamping and fixing motor 17 fixedly connected to one side of the top surface of the clamping and fixing plate 16, a telescopic rod 18 driven and connected to one side of the bottom end of the clamping and fixing motor 17, a pressing base plate 19 fixedly connected to one side of the bottom surface of the telescopic rod 18, a supporting base column 20 fixedly connected to one side of the bottom end of the friction testing platform 1, a supporting stabilizing plate 21 fixedly connected to one side of the bottom end of the supporting base column 20, the positions of the clamping and fixing plate 16 and the clamping and fixing motor 17 are one-to-one, there are two clamping and fixing plates 16, the two clamping and fixing plates 16 are symmetrically distributed on the top surface of the carrier platform 5, and the cross-sectional length of the pressing base plate 19 is the same as the cross-sectional width of the carrier platform 5.

[0017] In the implementation plan, clamping and fixing plates 16 are set on both sides of the top of the carrier platform 5. The extension and retraction of the telescopic rod 18 is controlled by the clamping and fixing motor 17 to adjust the position and height of the extrusion base 19. The extrusion between the extrusion base 19 and the carrier platform 5 is used to fix the material and ensure the stability of subsequent testing. The contact area between the extrusion base 19 and the carrier platform 5 is large, which improves the stability of the clamping between the extrusion base 19 and the carrier platform 5 and improves the accuracy of testing.

[0018] Working principle: The material to be tested is placed on the top of the carrier platform 5. The main drive motor 14 controls the rotation of the drive threaded rod 9, which drives the limiting sliding top plate 10 to slide and adjust its position inside the limiting sliding groove 8. During the movement, the rotation motor 13 controls the rotation of the contact friction roller 12. The contact friction roller 12 and the surface of the material are in contact and friction to achieve friction detection. The lifting motors 3 at multiple positions at the bottom of the friction test platform 1 control the extension and retraction of the lifting connecting rod 4 to control the position and height adjustment of the carrier platform 5, thereby achieving a precise contact effect between the material at the top of the carrier platform 5 and the contact friction roller 12, ensuring the flexibility of the carrier platform 5 in use. By setting clamping and fixing plates 16 on both sides of the top of the carrier platform 5, and controlling the extension and retraction of the telescopic rod 18 by the clamping and fixing motor 17, the position and height of the extrusion base 19 are adjusted. The extrusion between the extrusion base 19 and the carrier platform 5 is used to fix the material, ensuring the stability of subsequent testing. The large contact area between the extrusion base 19 and the carrier platform 5 improves the stability of the clamping between the extrusion base 19 and the carrier platform 5, and improves the accuracy of testing.

Claims

1. A carrier abrasive replacement mechanism for a sliding friction testing machine, comprising a friction testing table (1), wherein a bottom connecting plate (2) is fixedly connected to one side of the bottom surface of the friction testing table (1), characterized in that: A lifting motor (3) is fixedly connected to one side of the bottom surface of the bottom connecting plate (2). A lifting connecting rod (4) is driven to the top of one side of the lifting motor (3). A carrier platform (5) is fixedly connected to the top of one side of the lifting connecting rod (4). A connecting arm (6) is fixedly connected to the top of one side of the friction test platform (1). A test top plate (7) is fixedly connected to the top surface of one side of the connecting arm (6). A limit sliding groove (8) is opened on the top surface of the test top plate (7). A drive threaded rod (9) is rotatably connected inside the limit sliding groove (8). A limit sliding top plate (10) is movably connected to one side surface of the drive threaded rod (9). A friction contactor (11) is fixedly connected to one side of the bottom surface of the limit sliding top plate (10). A contact friction roller (12) is rotatably connected to one side of the bottom of the friction contactor (11). A rotating motor (13) is fixedly installed on the top of one side of the friction contactor (11). A main drive motor (14) is fixedly connected to the top of one side of the test top plate (7).

2. The abrasive replacement mechanism for a sliding friction testing machine according to claim 1, characterized in that, The connection between the main drive motor (14) and the drive threaded rod (9) is a drive connection. The drive threaded rod (9) passes through the interior of the limiting sliding top plate (10). The connection between the drive threaded rod (9) and the limiting sliding top plate (10) is a threaded drive connection. The limiting sliding top plate (10) is located inside the limiting sliding groove (8). The connection between the test top plate (7) and the limiting sliding top plate (10) is a sliding connection.

3. The abrasive replacement mechanism for a sliding friction testing machine according to claim 1, characterized in that, The friction test bench (1) has a limiting groove (15) on its top surface. The carrier platform (5) is located inside the limiting groove (15). The rotating motor (13) and the contact friction roller (12) are connected by a drive connection.

4. The abrasive replacement mechanism for a sliding friction testing machine according to claim 1, characterized in that, The number of bottom connecting plates (2) is four. The four bottom connecting plates (2) are symmetrically distributed on the bottom surface of the friction test platform (1). The positions of the bottom connecting plates (2) and the lifting motor (3) correspond one-to-one. The number of connecting arms (6) is four. The four connecting arms (6) are symmetrically distributed between the friction test platform (1) and the test top plate (7).

5. The abrasive replacement mechanism for a sliding friction testing machine according to claim 1, characterized in that, A clamping plate (16) is fixedly connected to the top surface of one side of the platform (5). A clamping motor (17) is fixedly connected to the top surface of one side of the clamping plate (16). A telescopic rod (18) is driven to the bottom of one side of the clamping motor (17). A pressing base plate (19) is fixedly connected to the bottom surface of one side of the telescopic rod (18). A support column (20) is fixedly connected to the bottom of one side of the friction test platform (1). A support stabilizing plate (21) is fixedly connected to the bottom of one side of the support column (20).

6. The abrasive replacement mechanism for a sliding friction testing machine according to claim 5, characterized in that, The positions of the clamping and fixing disc (16) and the clamping and fixing motor (17) correspond one-to-one. There are two clamping and fixing discs (16). The two clamping and fixing discs (16) are symmetrically distributed on the top surface of the carrier platform (5). The cross-sectional length of the extrusion base (19) is the same as the cross-sectional width of the carrier platform (5).

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