Metal material thermal friction performance test bench

Abstract

The utility model relates to the technical field of metal material performance test, and provides a metal material thermal friction performance test bench which comprises a test bench, a connecting block fixedly connected to the middle of the top end of the test bench, a friction rod fixedly connected to the top end of the connecting block, and a connecting plate fixedly connected to the side end of the test bench. A driving motor is mounted at the top end of the connecting plate, and an output shaft of the driving motor is fixedly connected with a fixing mechanism; two symmetrically-distributed mounting plates are fixedly connected to the two side ends of the test board, threaded rods are in threaded connection with the interiors of the mounting plates, and protective covers are slidably connected to the positions, located on the two sides of the friction rod, of the test board. According to the utility model, by rotating the threaded rods at the two sides, the protective covers matched with the threaded rods can be driven and extruded to carry out linear motion, and when a test is carried out, the protective covers at the two sides can be closed, so that a protection function can be realized in a thermal friction experiment, and the risk of safety accidents is reduced.

Description

Technical Field

[0001] This utility model relates to the field of metal material performance testing technology, and in particular to a metal material thermal friction performance testing bench. Background Technology

[0002] Thermal friction of metallic materials refers to the frictional phenomenon in which the temperature of the contact surface of metallic materials increases significantly due to friction during relative motion (such as sliding or rolling), thereby causing changes in the physical or chemical properties of the materials.

[0003] When metallic materials move relative to each other, they generate a lot of heat. Their frictional properties are determined by detecting changes in heat. However, if the material strength is insufficient during relative motion, it may crack or even break off and fly out during the test, which could lead to a serious safety accident. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the existing technology that when metal materials move relative to each other, a large amount of heat is generated, and the frictional properties are obtained by detecting the change in heat. However, if the material strength is insufficient during the relative movement, it may crack or even break off and fly out during the detection process, which may lead to a serious safety accident.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a metal material thermal friction performance test bench, comprising: a test bench, a connecting block fixedly connected to the middle of the top of the test bench, a friction rod fixedly connected to the top of the connecting block, a connecting plate fixedly connected to the side of the test bench, a drive motor installed at the top of the connecting plate, and a fixing mechanism fixedly connected to the output shaft of the drive motor;

[0006] Two symmetrically distributed mounting plates are fixedly connected to both ends of the test platform. Each mounting plate has a threaded rod threaded inside. Protective covers are slidably connected to both sides of the friction rod on the test platform. The rear end of each protective cover is rotatably connected to the corresponding threaded rod. Common remote temperature sensors, such as infrared thermal imagers and industrial infrared thermometers, can be installed in the inner wall of one of the protective covers. After being connected to an external display, the heat changes during friction can be visually displayed. By rotating the threaded rods on both sides, the protective cover that it cooperates with can be driven to move linearly. During testing, the protective covers on both sides can be closed to provide protection during thermal friction experiments and reduce the risk of safety accidents.

[0007] In a preferred embodiment, the fixing mechanism includes a mounting block fixedly connected to the output shaft of the drive motor. An adjusting plate is rotatably connected to the lower end of the mounting block. The mounting block has three evenly distributed sliding grooves, and sliding plates are slidably connected in each of the sliding grooves. A pressing fixing plate is fixedly connected to one end of each sliding plate close to the other. The pressing fixing plate can be used to fix and clamp test metal rods of different diameters.

[0008] In a preferred embodiment, a sliding pin is fixedly connected to the rear end of the sliding plate, and three evenly distributed arc-shaped guide grooves are provided in the adjusting plate. The sliding pin is slidably connected to the arc-shaped guide groove at its corresponding position. An adjusting box is fixedly connected to the side wall of the mounting block, and a driving mechanism is provided in the adjusting box. By rotating the adjusting plate in conjunction with the arc-shaped guide groove, multiple sliding pins can be squeezed synchronously, thereby controlling the multiple squeezing fixed plates to gather or disperse, and has a synchronous driving function.

[0009] In a preferred embodiment, the driving mechanism includes a worm gear rack rotatably connected in the adjusting box, and a worm fixedly connected to the adjusting disc at the location corresponding to the worm gear rack. The worm gear rack and the worm are meshed and connected for transmission. The meshing principle of the worm gear rack and the worm is the same as that of the worm wheel and worm gear, and it has self-locking properties. The adjusting disc is driven and controlled by the worm gear rack and the worm, resulting in stable transmission and strong load capacity.

[0010] In one preferred embodiment, a handle is fixedly connected to the end of the worm gear rack, and the worm is driven by the handle to form a force-saving lever, making the drive more convenient.

[0011] In a preferred embodiment, the extrusion fixing plates have uniformly distributed rectangular grooves on their close-to-each end faces to improve the clamping stability between the extrusion fixing plates and the metal bar.

[0012] In a preferred embodiment, both the friction rod and the extrusion fixing plate are manufactured by casting nickel-based alloys. Nickel-based alloys have high-temperature stability and a low coefficient of friction, which can improve service life and reduce heat loss.

[0013] In a preferred embodiment, two symmetrically distributed I-beams are fixedly connected to the lower end of the test platform, which facilitates the fixed installation of the device.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] 1. This utility model can drive the protective cover that it cooperates with to move linearly by rotating the threaded rods on both sides. When conducting tests, the protective cover on both sides can be closed to provide protection during thermal friction experiments and reduce the risk of safety accidents.

[0016] 2. This utility model allows for adjustment of the clamping size of the device by rotating the worm gear, enabling the fixing of test bars of different diameters, thus improving the flexibility of use, making the adjustment operation simple and quick, and improving the installation efficiency. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram of a metal material thermal friction performance testing bench provided by this utility model;

[0018] Figure 2 A three-dimensional structural schematic diagram of a metal material thermal friction performance testing bench provided by this utility model;

[0019] Figure 3 A partial structural schematic diagram of a metal material thermal friction performance testing bench provided by this utility model;

[0020] Figure 4 A partial structural schematic diagram of a metal material thermal friction performance testing bench provided by this utility model.

[0021] Legend:

[0022] 1. Test bench; 2. I-beam; 3. Connecting plate; 4. Drive motor; 5. Mounting block; 6. Adjusting disc; 7. Protective cover; 8. Threaded rod; 9. Mounting plate; 10. Connecting block; 11. Friction rod; 12. Test metal rod; 13. Arc-shaped guide groove; 14. Extrusion fixing plate; 15. Sliding pin; 16. Slide groove; 17. Sliding plate; 18. Rotary handle; 19. Worm gear; 20. Worm rack; 21. Adjusting box. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a metal material thermal friction performance test bench, including: a test bench 1, a connecting block 10 fixedly connected to the top center of the test bench 1, a friction rod 11 fixedly connected to the top of the connecting block 10, a connecting plate 3 fixedly connected to the side end of the test bench 1, a drive motor 4 installed at the top of the connecting plate 3, and a fixing mechanism fixedly connected to the output shaft of the drive motor 4.

[0025] Two symmetrically distributed mounting plates 9 are fixedly connected to both ends of the test platform 1. Each mounting plate 9 has a threaded rod 8 threaded inside. Protective covers 7 are slidably connected to both sides of the friction rod 11 on the test platform 1. The rear end of the protective cover 7 is rotatably connected to the corresponding threaded rod 8. Common remote temperature sensors, such as infrared thermal imagers and industrial infrared thermometers, can be installed in the inner wall of one of the protective covers 7. After being connected to an external display, the heat changes during friction can be displayed intuitively. By rotating the threaded rods 8 on both sides, the protective cover 7 that it cooperates with can be driven to move linearly. During the test, the protective covers 7 on both sides can be closed to provide protection during the thermal friction experiment and reduce the risk of safety accidents.

[0026] like Figure 1-4 As shown, the fixing mechanism includes a mounting block 5 fixedly connected to the output shaft of the drive motor 4. An adjusting plate 6 is rotatably connected to the lower end of the mounting block 5. The mounting block 5 has three evenly distributed sliding grooves 16. Sliding plates 17 are slidably connected in each of the sliding grooves 16. A pressing fixing plate 14 is fixedly connected to one end of each sliding plate 17. The pressing fixing plate 14 can be slidably set to fix and clamp test metal rods 12 of different diameters.

[0027] like Figure 1-4 As shown, a sliding pin 15 is fixedly connected to the rear end of the sliding plate 17. The adjusting plate 6 has three evenly distributed arc-shaped guide grooves 13. The sliding pin 15 is slidably connected to the arc-shaped guide groove 13 at its corresponding position. An adjusting box 21 is fixedly connected to the side wall of the mounting block 5. A driving mechanism is provided in the adjusting box 21. By rotating the adjusting plate 6 in conjunction with the arc-shaped guide groove 13, multiple sliding pins 15 can be squeezed synchronously, thereby controlling the multiple squeezing fixed plates 14 to gather or disperse, and has a synchronous driving function.

[0028] like Figure 1-4 As shown, the drive mechanism includes a worm gear 20 rotatably connected in the regulating box 21. A worm 19 is fixedly connected to the regulating disc 6 at the position corresponding to the worm gear 20. The worm gear 20 and the worm 19 are meshed and connected for transmission. The meshing principle of the worm gear 20 and the worm 19 is the same as that of the worm wheel and worm gear, and it has self-locking properties. The regulating disc 6 is driven and controlled by the worm gear 20 and the worm 19, resulting in stable transmission and strong load capacity.

[0029] like Figure 1-4 As shown, a handle 18 is fixedly connected to the end of the worm gear rack 20. The worm gear 19 is driven by the handle 18 to form a force-saving lever, making the drive more convenient.

[0030] like Figure 1-4 As shown, the extrusion fixing plates 14 have uniformly distributed rectangular grooves on their close-to-each end faces to improve the clamping stability between the extrusion fixing plates 14 and the metal bar.

[0031] like Figure 1-4 As shown, both the friction rod 11 and the extrusion fixing plate 14 are made of nickel-based alloy casting. Nickel-based alloy has high temperature stability and low friction coefficient, which can improve service life and reduce heat loss.

[0032] like Figure 1-4 As shown, two symmetrically distributed I-beams 2 are fixedly connected to the lower end of the test bench 1. The I-beams 2 facilitate the fixed installation of the device.

[0033] Working principle: During testing, the test metal rod 12 is inserted between three extrusion fixing plates 14. The height of the test metal rod 12 is adjusted so that its lower end abuts against the friction rod 11. By rotating the handle 18, the worm gear 19 is driven to rotate mechanically. The worm rack 20 and the worm gear 19 work together to drive the adjustment disk 6 to rotate. The arc-shaped guide groove 13 on the adjustment disk 6 simultaneously extrudes multiple sliding pins 15, thereby controlling the multiple extrusion fixing plates 14 to gather or disperse, thus fixing and clamping the test metal rod 12. Then, by rotating the threaded rods 8 on both sides, the protective cover 7 that it cooperates with can be driven to move linearly. When the protective covers 7 on both sides are closed, the output of the drive motor 4 causes the test metal rod 12 to rotate and rub against the friction rod 11, thus conducting a thermal friction test.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A test bench for the thermal friction properties of metallic materials, characterized in that, include: Test bench (1), a connecting block (10) is fixedly connected to the middle of the top of the test bench (1), a friction rod (11) is fixedly connected to the top of the connecting block (10), a connecting plate (3) is fixedly connected to the side of the test bench (1), a drive motor (4) is installed at the top of the connecting plate (3), and a fixing mechanism is fixedly connected to the output shaft of the drive motor (4). The test bench (1) has two symmetrically distributed mounting plates (9) fixedly connected to both sides. Each mounting plate (9) has a threaded rod (8) threaded inside. The test bench (1) has a protective cover (7) slidably connected to both sides of the friction rod (11). The rear end of the protective cover (7) is rotatably connected to the corresponding threaded rod (8).

2. The thermal friction performance testing bench for metallic materials according to claim 1, characterized in that: The fixing mechanism includes a mounting block (5) fixedly connected to the output shaft of the drive motor (4). An adjusting plate (6) is rotatably connected to the lower end of the mounting block (5). The mounting block (5) has three evenly distributed sliding grooves (16). Each sliding groove (16) is slidably connected to a sliding plate (17). Each sliding plate (17) is fixedly connected to a pressing fixing plate (14) at one end close to each other.

3. The thermal friction performance testing bench for metallic materials according to claim 2, characterized in that: The sliding plate (17) is fixedly connected to a sliding pin (15) at its rear end. The adjusting plate (6) is provided with three evenly distributed arc-shaped guide grooves (13). The sliding pin (15) is slidably connected to the arc-shaped guide groove (13) at its corresponding position. The mounting block (5) is fixedly connected to an adjusting box (21) on its side wall. The adjusting box (21) is provided with a driving mechanism.

4. The thermal friction performance testing bench for metallic materials according to claim 3, characterized in that: The driving mechanism includes a worm gear (20) rotatably connected in the adjustment box (21), and a worm (19) is fixedly connected to the adjustment plate (6) at the position corresponding to the worm gear (20). The worm gear (20) and the worm (19) are meshed and connected in a transmission manner.

5. The thermal friction performance testing bench for metallic materials according to claim 4, characterized in that: A handle (18) is fixedly connected to the end of the worm gear (20).

6. The thermal friction performance testing bench for metallic materials according to claim 2, characterized in that: The extrusion fixing plates (14) have uniformly distributed rectangular grooves on their close-to-each end faces.

7. The thermal friction performance testing bench for metallic materials according to claim 2, characterized in that: The friction rod (11) and the extrusion fixing plate (14) are both made of nickel-based alloy casting.

8. The thermal friction performance testing bench for metallic materials according to claim 1, characterized in that: The lower end of the test bench (1) is fixedly connected to two symmetrically distributed I-beams (2).

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