Hard alloy friction-wear testing machine

Abstract

The invention relates to a hard alloy friction and wear testing machine, and relates to the technical field of hard alloy materials, the hard alloy friction and wear testing machine comprises a friction mechanism, a detection mechanism is arranged in the friction mechanism, a temperature control mechanism is arranged in the friction mechanism, and the left side of the detection mechanism and the friction mechanism are mounted; the bottom of the temperature control mechanism is fixedly connected with the friction mechanism; the friction mechanism comprises a bottom plate, a top plate is arranged at the top of the bottom plate, a servo motor is fixedly connected to the top of the top plate, a ball screw is fixedly connected to an output shaft of the servo motor, a sliding block is fixedly connected to the outer side of the ball screw, and an upper machine shell is fixedly connected to the front face of the sliding block. And an upper sample is mounted at the bottom of the upper shell. The device has the advantages that the testing precision and stability in the high-pressure and high-temperature environment are improved, the loading system is high in response speed, the dynamic load testing requirement can be met, the measuring efficiency is improved, and the device adapts to the rapid testing requirement of large-batch samples.

Description

TECHNICAL FIELD

[0001] The present application relates to a cemented carbide material, in particular to a cemented carbide friction and wear testing machine. BACKGROUND

[0002] At present, cemented carbide is widely used in cutting tools, molds and wear-resistant parts due to its high hardness, wear resistance and corrosion resistance. With the development of industrial technology, the performance requirements of cemented carbide materials are becoming higher and higher, especially the friction and wear performance testing requirements under extreme working conditions are increasing. At present, the friction and wear testing machine is an important equipment for evaluating material performance.

[0003] The commonly used friction and wear testing machines at present mainly include pin-on-disc testing machine, ring-on-block testing machine and reciprocating testing machine, etc. The pin-on-disc testing machine simulates the friction process through the contact between the pin sample and the rotating disc, which has the advantages of simple structure and convenient operation, but it is difficult to simulate the friction behavior under high pressure conditions. The ring-on-block testing machine tests through the contact between the ring sample and the block sample, which is suitable for wear research under high load conditions, but its temperature control precision is low. The reciprocating testing machine simulates the actual working condition through reciprocating motion, which is suitable for studying the fatigue wear characteristics of materials, but its test period is long and the efficiency is low. In addition, the loading system of the existing testing machine adopts hydraulic or mechanical loading mode, which can realize high load loading, but the response speed is slow, which is difficult to meet the demand of dynamic load testing.

[0004] In view of the above related technologies, the existing friction and wear testing machine has insufficient testing precision and stability under high temperature, high pressure or corrosion environment, the response speed of the loading system is slow, the temperature control precision is low, and the testing efficiency is not high. In addition, the universality of the existing equipment is poor, which is difficult to adapt to the testing requirements of samples with different shapes and sizes, therefore, a cemented carbide friction and wear testing machine is proposed. SUMMARY

[0005] The purpose of the present application is to provide a cemented carbide friction and wear testing machine to solve the above-mentioned problems.

[0006] In the first aspect, the cemented carbide friction and wear testing machine provided by the present application adopts the following technical scheme: a friction mechanism is provided, a detection mechanism is arranged in the friction mechanism, a temperature control mechanism is arranged in the friction mechanism, the left side of the detection mechanism is installed with the friction mechanism, and the bottom of the temperature control mechanism is fixedly connected with the friction mechanism. The friction mechanism comprises a bottom plate, the top of the bottom plate is provided with a top plate, the top of the top plate is fixedly connected with a servo motor, the output shaft of the servo motor is fixedly connected with a ball screw, the outer side of the ball screw is fixedly connected with a sliding block, the front of the sliding block is fixedly connected with an upper casing, the bottom of the upper casing is provided with an upper sample, the bottom of the upper casing is provided with a bearing seat, the bottom of the bearing seat is fixedly connected with the top of the bottom plate, the inside of the bearing seat is installed with a drive motor, the top of the drive motor is fixedly connected with a transmission shaft, the top of the transmission shaft is fixedly connected with a lower sample disc.

[0007] Preferably, the top of the bottom plate is fixedly connected with a first support plate, the top of the bottom plate is fixedly connected with a second support plate, the first support plate and the second support plate are fixedly connected with a connecting plate, the inside of the connecting plate is provided with a sliding groove, and the sliding groove is matched with the sliding block.

[0008] Preferably, the top of the first support plate and the top of the second support plate are fixedly connected with the bottom of the same top plate, a fixed plate is arranged between the first support plate and the second support plate, and the bottom of the fixed plate is attached to the upper casing.

[0009] Preferably, the left and right sides of the fixed plate are fixedly connected with fixed strips respectively, the outer sides of the first support plate and the second support plate are provided with fixed grooves, and the fixed grooves are matched with the fixed strips.

[0010] Preferably, the back of the connecting plate is fixedly connected with a limiting plate, the limiting plate is matched with the bottom of the ball screw, the outer side of the limiting plate is fixedly connected with the first support plate, and the outer side of the limiting plate is fixedly connected with the second support plate.

[0011] Preferably, the detection mechanism comprises a displacement sensor and a torque sensor, the outer side of the displacement sensor is installed with the ball screw, the inside of the torque sensor is installed with the outer surface of the transmission shaft, and the bottom of the torque sensor is attached to the top of the drive motor.

[0012] Preferably, the detection mechanism further comprises a data acquisition card and a computer, the data acquisition card is electrically connected with the computer, the data acquisition card is electrically connected with the displacement sensor, and the data acquisition card is electrically connected with the torque sensor.

[0013] In the second aspect, the hard alloy friction and wear testing machine adopts the technical scheme as follows: the temperature control mechanism comprises a heater, the bottom of the heater is fixedly connected with the top of the bottom plate, the output port of the heater is fixedly connected with a heating pipe, the output port of the heating pipe is fixedly connected with a heating cavity, the heating cavity is annular, and the inside of the heating cavity is matched with the lower sample disc.

[0014] Preferably, a thermocouple is provided on the top of the base plate, the bottom of the thermocouple is installed with the bearing seat, the thermocouple is electrically connected to a temperature controller, the left side of the temperature controller is fixedly connected to the right side of the first support plate, the temperature controller is electrically connected to the heater, and the temperature controller is electrically connected to the computer.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. Using the base plate as the basic support, a servo motor drives the ball screw to rotate, converting the rotational motion into the linear motion of the sliding block. This drives the upper housing and adjusts the position of the upper sample, thus achieving precise loading of the upper sample and simulating the friction process under different pressure conditions. The drive motor drives the transmission shaft to rotate, which in turn causes the lower sample plate to rotate. Under the loading action, the upper sample and the lower sample plate generate relative motion, simulating the actual friction process. The sliding block drives the upper housing to move up and down, thereby causing the upper sample to contact or separate from the lower sample plate, controlling the start and end of the friction process. The loading system has a fast response speed and can meet the requirements of dynamic load testing. The first and second support plates serve to support and fix the connecting plate. The sliding groove on the connecting plate provides guidance for the sliding block, ensuring that the sliding block can move stably along a straight line under the drive of the ball screw, thereby improving the loading accuracy and stability and ensuring the accuracy of the test results. The connection between the first and second support plates and the top plate further enhances the overall structure. The stability of the structure is ensured by the fixed plate fitting snugly against the upper housing, which provides auxiliary support and positioning for the upper housing, preventing it from shaking or shifting during movement. This ensures accurate alignment of the upper and lower sample plates, guaranteeing the smooth conduct of the friction test. The cooperation between the fixing strip and the fixing groove allows the fixed plate to be accurately installed between the first and second support plates, providing better positioning and fixing, further improving the stability and reliability of the entire friction mechanism and reducing errors caused by structural shaking during the test. The limiting plate restricts the downward movement of the ball screw during movement, preventing it from colliding with other components or causing structural damage due to excessive downward movement. The first support plate, the second support plate, and the connecting plate all have a limiting function. While they are not inherently stable in terms of support, the connection of the limiting plates enhances the stability of the entire structure, avoiding shaking caused by the linkage between structures during operation. The friction mechanism improves the testing accuracy and stability under high pressure. 2. The displacement sensor measures the displacement of the sliding block driven by the ball screw. By calculating the displacement change, the wear between the upper and lower sample plates can be obtained. The torque sensor measures the torque on the drive shaft. The magnitude of the torque reflects the magnitude of the friction force between the friction pairs. By monitoring the torque, we can understand the changes in friction force under different test conditions, which helps in the in-depth analysis of the friction and wear mechanism of materials. The data acquisition card is responsible for collecting the analog signals output by the displacement and torque sensors, converting them into digital signals, and then transmitting them to the computer. The computer processes, analyzes, and stores the collected data. The software can display the change curves of parameters such as displacement and torque in real time, generate test reports, and provide researchers with intuitive and accurate test data. This facilitates in-depth research on the friction and wear performance of cemented carbide materials. The testing mechanism improves measurement efficiency, resulting in high testing efficiency and meeting the needs of rapid testing of large batches of samples. 3. The heater generates heat, which is transferred to the annular heating chamber through the heating tube. The heating chamber heats the lower sample plate, thereby bringing the friction area to the set test temperature. The annular design ensures uniform heating and provides a stable temperature environment for studying the effect of temperature on the friction and wear properties of cemented carbide materials. Thermocouples measure the temperature of the friction area in real time and convert the temperature signal into an electrical signal, which is then transmitted to the temperature controller. The temperature controller automatically adjusts the heater power based on the deviation between the set temperature value and the actual temperature value measured by the thermocouple, achieving precise control of the friction area temperature. At the same time, the temperature controller transmits the temperature data to the computer, facilitating researchers to monitor and record temperature changes in real time. The temperature control mechanism improves the testing accuracy and stability at high temperatures, and the high temperature control precision ensures the accuracy of the test results. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a three-dimensional front view schematic diagram of the friction mechanism of this application; Figure 3 This is a disassembly diagram of the friction mechanism of this application; Figure 4 This is a three-dimensional rear view schematic diagram of the friction mechanism of this application; Figure 5 This is a three-dimensional schematic diagram of the testing institution in this application; Figure 6 This is a disassembly diagram of the testing agency in this application; Figure 7 This is a disassembly diagram of the temperature control mechanism in this application; Explanation of reference numerals in the attached drawings: 1. Friction mechanism; 2. Detection mechanism; 3. Temperature control mechanism; 101. Base plate; 102. Top plate; 103. Servo motor; 104. Ball screw; 105. Sliding block; 106. Upper housing; 107. Connecting plate; 108. First support plate; 109. Second support plate; 110. Fixing plate; 111. Fixing strip; 112. Upper sample; 113. Bearing seat; 114. Drive motor; 115. Transmission shaft; 116. Lower sample plate; 117. Limiting plate; 201. Displacement sensor; 202. Torque sensor; 301. Heater; 302. Heating tube; 303. Heating chamber; 304. Thermocouple; 305. Temperature controller. Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1 -Appendix Figure 7 This application will be described in further detail below.

[0018] Example 1: A cemented carbide friction and wear testing machine, referring to... Figures 1-6 It includes a friction mechanism 1, a detection mechanism 2 is installed inside the friction mechanism 1, a temperature control mechanism 3 is installed inside the friction mechanism 1, the left side of the detection mechanism 2 is installed with the friction mechanism 1, and the bottom of the temperature control mechanism 3 is fixedly connected to the friction mechanism 1. The friction mechanism 1 includes a base plate 101, a top plate 102 on the top of the base plate 101, a servo motor 103 fixedly connected to the top of the top plate 102, a ball screw 104 fixedly connected to the output shaft of the servo motor 103, a sliding block 105 fixedly connected to the outer side of the ball screw 104, an upper housing 106 fixedly connected to the front of the sliding block 105, an upper sample 112 mounted on the bottom of the upper housing 106, a bearing seat 113 at the bottom of the upper housing 106, the bottom of the bearing seat 113 fixedly connected to the top of the base plate 101, a drive motor 114 installed inside the bearing seat 113, a transmission shaft 115 fixedly connected to the top of the drive motor 114, and a lower sample plate 116 fixedly connected to the top of the transmission shaft 115.

[0019] Specifically, the base plate 101 is used as the basic support. The servo motor 103 drives the ball screw 104 to rotate, converting the rotational motion into the linear motion of the sliding block 105. This drives the upper housing 106 and adjusts the position of the upper sample 112, thereby achieving precise loading of the upper sample 112 and simulating the friction process under different pressure conditions. The drive motor 114 drives the transmission shaft 115 to rotate, which in turn causes the lower sample plate 116 to rotate. Under the loading action, the upper sample 112 and the lower sample plate 116 generate relative motion, simulating the actual friction process. The sliding block 105 drives the upper housing 106 to move up and down, thereby causing the upper sample 112 to contact or separate from the lower sample plate 116, controlling the start and end of the friction process. The loading system has a fast response speed and can meet the requirements of dynamic load testing.

[0020] A first support plate 108 is fixedly connected to the top of the base plate 101, and a second support plate 109 is fixedly connected to the top of the base plate 101. A connecting plate 107 is fixedly connected between the first support plate 108 and the second support plate 109. A sliding groove is provided inside the connecting plate 107, and the sliding groove is adapted to the sliding block 105.

[0021] Specifically, the first support plate 108 and the second support plate 109 serve to support and fix the connecting plate 107. The sliding groove on the connecting plate 107 provides guidance for the sliding block 105, ensuring that the sliding block 105 can move stably along a straight line under the drive of the ball screw 104, thereby improving the accuracy and stability of the loading and ensuring the accuracy of the test results.

[0022] The tops of the first support plate 108 and the second support plate 109 are fixedly connected to the bottom of the same top plate 102. A fixing plate 110 is provided between the first support plate 108 and the second support plate 109, and the bottom of the fixing plate 110 is attached to the upper housing 106.

[0023] Specifically, the connection between the first support plate 108 and the second support plate 109 and the top plate 102 further enhances the stability of the entire structure. The fixing plate 110 fits against the upper housing 106, which can provide auxiliary support and positioning for the upper housing 106, preventing the upper housing 106 from shaking or shifting during movement, ensuring accurate alignment between the upper sample 112 and the lower sample plate 116, and ensuring the smooth progress of the friction test.

[0024] Fixing strips 111 are fixedly connected to the left and right sides of the fixing plate 110 respectively. Fixing grooves are opened on the outer sides of the first support plate 108 and the second support plate 109, and the fixing grooves are adapted to the fixing strips 111.

[0025] Specifically, the cooperation between the fixing strip 111 and the fixing groove enables the fixing plate 110 to be accurately installed between the first support plate 108 and the second support plate 109, which plays a better role in positioning and fixing, further improving the stability and reliability of the entire friction mechanism 1 and reducing the error caused by structural shaking during the test.

[0026] A limiting plate 117 is fixedly connected to the back of the connecting plate 107. The limiting plate 117 is adapted to the bottom of the ball screw 104. The outer side of the limiting plate 107 is fixedly connected to the first support plate 108, and the outer side of the limiting plate 107 is fixedly connected to the second support plate 108.

[0027] Specifically, the limiting plate 117 can limit the downward movement of the ball screw 104 during the movement, preventing the ball screw 104 from colliding with other components or causing structural damage due to excessive downward movement. The first support plate 108, the second support plate 109, and the connecting plate 107 all have the function of limiting, and are not stable in terms of support. The connection of the limiting plate 117 also enhances the stability of the entire structure and avoids the shaking caused by the linkage between the structures during operation.

[0028] The detection mechanism 2 includes a displacement sensor 201 and a torque sensor 202. The outer side of the displacement sensor 201 is mounted to the ball screw 104, the inner side of the torque sensor 202 is mounted to the outer surface of the drive shaft 115, and the bottom of the torque sensor 202 is in contact with the top of the drive motor 114.

[0029] Specifically, the displacement sensor 201 is used to measure the displacement of the sliding block 105 driven by the ball screw 104. By calculating the displacement change, the wear amount between the upper sample 112 and the lower sample plate 116 can be obtained. The torque sensor 202 measures the torque on the transmission shaft 115. The magnitude of the torque reflects the magnitude of the friction force between the friction pairs. By monitoring the torque, we can understand the changes in friction force under different test conditions, which helps to analyze the friction and wear mechanism of the material in depth.

[0030] The testing unit 2 also includes a data acquisition card, a computer, and the data acquisition card is electrically connected to the computer, the displacement sensor 201, and the torque sensor 202.

[0031] Specifically, the data acquisition card is responsible for acquiring the analog signals output by the displacement sensor 201 and the torque sensor 202, converting them into digital signals, and then transmitting them to the computer. The computer processes, analyzes, and stores the acquired data. Through software, it can display the change curves of parameters such as displacement and torque in real time, generate test reports, and provide researchers with intuitive and accurate test data, facilitating in-depth research on the friction and wear properties of cemented carbide materials.

[0032] The implementation principle of this application embodiment is as follows: The base plate 101 is used as a basic support. The servo motor 103 drives the ball screw 104 to rotate, converting the rotational motion into the linear motion of the sliding block 105. This drives the upper housing 106 and adjusts the position of the upper sample 112, thereby achieving precise loading of the upper sample 112 and simulating the friction process under different pressure conditions. The drive motor 114 drives the transmission shaft 115 to rotate, which in turn causes the lower sample plate 116 to rotate. Under the loading action, the upper sample 112 and the lower sample plate 116 generate relative motion, simulating the actual friction process. The sliding block 105 drives the upper housing 106 to rotate. The shell 106 moves up and down, thereby causing the upper sample 112 to contact or separate from the lower sample plate 116, controlling the start and end of the friction process. The loading system has a fast response speed and can meet the requirements of dynamic load testing. The first support plate 108 and the second support plate 109 serve to support and fix the connecting plate 107. The sliding groove on the connecting plate 107 provides guidance for the sliding block 105, ensuring that the sliding block 105 can move stably along a straight line under the drive of the ball screw 104, thereby improving the accuracy and stability of loading and ensuring the accuracy of the test results. The first support plate 108 and the second support plate 109 The connection with the top plate 102 further enhances the stability of the entire structure. The fixing plate 110 fits snugly against the upper housing 106, providing auxiliary support and positioning for the upper housing 106, preventing it from shaking or shifting during movement, ensuring accurate alignment of the upper sample 112 and the lower sample plate 116, and ensuring the smooth conduct of the friction test. The cooperation between the fixing strip 111 and the fixing groove allows the fixing plate 110 to be accurately installed between the first support plate 108 and the second support plate 109, providing better positioning and fixing, and further improving the stability and reliability of the entire friction mechanism 1. To improve reliability and reduce errors caused by structural swaying during testing, the limiting plate 117 restricts the downward movement of the ball screw 104 during movement, preventing it from colliding with other components or causing structural damage due to excessive downward movement. The first support plate 108, the second support plate 109, and the connecting plate 107 all have a limiting function. They are not stable in terms of support themselves, but the connection of the limiting plate 117 enhances the stability of the entire structure, avoiding swaying caused by the linkage between structures during operation. The friction mechanism 1 improves the testing accuracy and stability under high pressure. The displacement sensor 201 is used to measure the displacement of the sliding block 105 driven by the ball screw 104. By calculating the displacement change, the wear between the upper sample 112 and the lower sample plate 116 can be obtained. The torque sensor 202 measures the torque on the transmission shaft 115. The magnitude of the torque reflects the magnitude of the friction force between the friction pairs. By monitoring the torque, we can understand the changes in friction force under different test conditions, which helps to analyze the friction and wear mechanism of the material in depth. The data acquisition card is responsible for acquiring the analog signals output by the displacement sensor 201 and the torque sensor 202, converting them into digital signals, and then transmitting them to the computer.The computer processes, analyzes, and stores the collected data. The software can display the change curves of parameters such as displacement and torque in real time and generate test reports, providing researchers with intuitive and accurate test data. This facilitates in-depth research on the friction and wear properties of cemented carbide materials. The testing mechanism 2 improves measurement efficiency and testing efficiency, meeting the needs of rapid testing of large batches of samples.

[0033] Example 2: A cemented carbide friction and wear testing machine, referring to... Figure 7 The temperature control mechanism 3 includes a heater 301. The bottom of the heater 301 is fixedly connected to the top of the base plate 101. A heating tube 302 is fixedly connected to the output port of the heater 301. A heating chamber 303 is fixedly connected to the output port of the heating tube 302. The heating chamber 303 is annular and its interior is adapted to the lower sample plate.

[0034] Specifically, heater 301 generates heat, which is transferred to annular heating chamber 303 through heating tube 302. Heating chamber 303 heats the lower sample plate, thereby bringing the friction area to the set test temperature. The annular design ensures uniform heating and provides a stable temperature environment for studying the effect of temperature on the friction and wear performance of cemented carbide materials.

[0035] A thermocouple 304 is provided on the top of the base plate 101. The bottom of the thermocouple 304 is installed with the bearing seat 113. The thermocouple 304 is electrically connected to a temperature controller 305. The left side of the temperature controller 305 is fixedly connected to the right side of the first support plate 108. The temperature controller 305 is electrically connected to the heater 301 and to the computer.

[0036] Specifically, thermocouple 304 measures the temperature of the friction area in real time and converts the temperature signal into an electrical signal, which is then transmitted to temperature controller 305. Temperature controller 305 automatically adjusts the power of heater 301 based on the deviation between the set temperature value and the actual temperature value measured by thermocouple 304, thereby achieving precise control of the temperature of the friction area. At the same time, temperature controller 305 transmits the temperature data to a computer, which facilitates researchers to monitor and record temperature changes in real time.

[0037] The implementation principle of this embodiment is as follows: Heater 301 generates heat, which is transferred to the annular heating chamber 303 through heating tube 302. Heating chamber 303 heats the lower sample plate, thereby bringing the friction area to the set test temperature. The annular design ensures uniform heating and provides a stable temperature environment for studying the influence of temperature on the friction and wear performance of cemented carbide materials. Thermocouple 304 measures the temperature of the friction area in real time and converts the temperature signal into an electrical signal, which is then transmitted to temperature controller 305. Temperature controller 305 automatically adjusts the power of heater 301 according to the deviation between the set temperature value and the actual temperature value measured by thermocouple 304, thereby achieving precise control of the temperature of the friction area. At the same time, temperature controller 305 transmits the temperature data to a computer, facilitating researchers to monitor and record temperature changes in real time. The temperature control mechanism 3 improves the testing accuracy and stability at high temperatures, and the high temperature control accuracy ensures the accuracy of the test results.

[0038] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cemented carbide friction and wear testing machine, comprising a friction mechanism (1), characterized in that, The friction mechanism (1) is equipped with a detection mechanism (2) and a temperature control mechanism (3). The left side of the detection mechanism (2) is installed with the friction mechanism (1), and the bottom of the temperature control mechanism (3) is fixedly connected to the friction mechanism (1). The friction mechanism (1) includes a base plate (101), a top plate (102) is provided on the top of the base plate (101), a servo motor (103) is fixedly connected to the top of the top plate (102), a ball screw (104) is fixedly connected to the output shaft of the servo motor (103), a sliding block (105) is fixedly connected to the outer side of the ball screw (104), an upper housing (106) is fixedly connected to the front of the sliding block (105), an upper sample (112) is installed at the bottom of the upper housing (106), a bearing seat (113) is provided at the bottom of the upper housing (106), the bottom of the bearing seat (113) is fixedly connected to the top of the base plate (101), a drive motor (114) is installed inside the bearing seat (113), a transmission shaft (115) is fixedly connected to the top of the drive motor (114), and a lower sample plate (116) is fixedly connected to the top of the transmission shaft (115).

2. The cemented carbide friction and wear testing machine according to claim 1, characterized in that, A first support plate (108) is fixedly connected to the top of the base plate (101), and a second support plate (109) is fixedly connected to the top of the base plate (101). A connecting plate (107) is fixedly connected between the first support plate (108) and the second support plate (109). A sliding groove is provided inside the connecting plate (107), and the sliding groove is adapted to the sliding block (105).

3. The cemented carbide friction and wear testing machine according to claim 2, characterized in that, The tops of the first support plate (108) and the second support plate (109) are fixedly connected to the bottom of the same top plate (102). A fixing plate (110) is provided between the first support plate (108) and the second support plate (109), and the bottom of the fixing plate (110) is attached to the upper casing (106).

4. The cemented carbide friction and wear testing machine according to claim 3, characterized in that, Fixing strips (111) are fixedly connected to the left and right sides of the fixing plate (110), and fixing grooves are provided on the outer sides of the first support plate (108) and the second support plate (109), and the fixing grooves are adapted to the fixing strips (111).

5. The cemented carbide friction and wear testing machine according to claim 1, characterized in that, A limiting plate (117) is fixedly connected to the back of the connecting plate (107). The limiting plate (117) is adapted to the bottom of the ball screw (104). The outer side of the limiting plate (107) is fixedly connected to the first support plate (108). The outer side of the limiting plate (107) is fixedly connected to the second support plate (108).

6. The cemented carbide friction and wear testing machine according to claim 1, characterized in that, The detection mechanism (2) includes a displacement sensor (201) and a torque sensor (202). The outer side of the displacement sensor (201) is installed with the ball screw (104), the inner side of the torque sensor (202) is installed with the outer surface of the drive shaft (115), and the bottom of the torque sensor (202) is attached to the top of the drive motor (114).

7. A cemented carbide friction and wear testing machine according to claim 6, characterized in that, The detection mechanism (2) also includes a data acquisition card and a computer. The data acquisition card is electrically connected to the computer, the data acquisition card is electrically connected to the displacement sensor (201), and the data acquisition card is electrically connected to the torque sensor (202).

8. The cemented carbide friction and wear testing machine according to claim 1, characterized in that, The temperature control mechanism (3) includes a heater (301), the bottom of which is fixedly connected to the top of the base plate (101), a heating tube (302) is fixedly connected to the output port of the heater (301), and a heating chamber (303) is fixedly connected to the output port of the heating tube (302). The heating chamber (303) is annular, and the interior of the heating chamber (303) is adapted to the lower sample plate.

9. A cemented carbide friction and wear testing machine according to claim 8, characterized in that, A thermocouple (304) is provided on the top of the base plate (101). The bottom of the thermocouple (304) is installed with the bearing seat (113). The thermocouple (304) is electrically connected to a temperature controller (305). The left side of the temperature controller (305) is fixedly connected to the right side of the first support plate (108). The temperature controller (305) is electrically connected to the heater (301) and the computer.

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