Device and method for evaluating friction plate temperature measurement method, braking system and railway vehicle

Abstract

The invention provides a device and method for evaluating a friction plate temperature measurement method, a braking system and a railway vehicle. The device comprises a supporting table which is provided with a supporting surface for providing heating temperature; the sample piece is arranged on the supporting surface, and the sample piece and the friction plate are made of the same material; wherein a groove is formed in the sample piece, the groove is formed in one side, in direct contact with the supporting surface, of the sample piece, and a reference sensor is arranged in the groove; and the blind hole is arranged far away from the supporting surface relative to the groove, and a temperature measurement sensor which is the same as that in the temperature measurement method is mounted in the blind hole in a mounting manner which is the same as that in the temperature measurement method, so that the temperature measurement method is evaluated based on the measured temperature of the temperature measurement sensor and the reference sensor.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle brake temperature testing, and more specifically, to a device and method for evaluating a friction plate temperature measurement method, a brake system, and a rail vehicle. Background Art

[0002] Friction plates can be components that achieve energy conversion by contacting other surfaces and generating friction. For example, friction plates can convert kinetic energy into heat energy, thereby achieving the purpose of motion control or braking. Friction plates can be brake shoes, brake pads, transmission belts, wheels, bearings, gears, brake discs, brake drums, etc.

[0003] When the friction plate is rotating or moving at high speed, such as when the train tread brakes, the brake shoe and the wheel tread or the brake pad and the brake disc are in intense friction, a large amount of heat will be generated. This heat is transferred between the friction parts through conduction, radiation and convection, causing the temperature of the components to rise sharply. The temperature changes of these components have a significant impact on their mechanical and chemical properties. High temperature may cause surface powdering, peeling and fluctuations in the friction coefficient. Therefore, it is very important to monitor the temperature changes of the friction parts in real time. However, since the friction parts are in a state of friction contact, it is impossible to use a temperature sensor to directly contact and measure the friction parts. Summary of the invention

[0004] In view of this, the present disclosure provides a device and method for evaluating a friction plate temperature measurement method, a braking system, and a rail vehicle.

[0005] One aspect of the present disclosure provides a device for evaluating a friction plate temperature measurement method, comprising: a support table having a support surface for providing a heating temperature; and a sample piece, disposed on the support surface, the sample piece being made of the same material as the friction plate; wherein the sample piece is formed with: a groove, opened on a side of the sample piece that is in direct contact with the support surface, a reference sensor being disposed in the groove; and a blind hole, disposed away from the support surface relative to the groove, a temperature measuring sensor identical to that in the temperature measuring method being installed in the blind hole by the same installation method as that in the temperature measuring method, so as to evaluate the temperature measuring method based on the measured temperatures of the temperature measuring sensor and the reference sensor.

[0006] Optionally, the device further includes: a control unit, which determines an optimal temperature measurement method among the multiple temperature measurement methods based on the temperature measured by the temperature measurement sensor used in each of the multiple temperature measurement methods and the temperature measured by the reference sensor.

[0007] Optionally, the positional relationship between the blind hole and the supporting surface is the same as the positional relationship between the temperature measuring hole and the friction part of the friction plate in the temperature measuring method; and the shape of the blind hole is the same as the shape of the temperature measuring hole in the temperature measuring method.

[0008] Optionally, the device further comprises: a counterweight, disposed on the sample piece, to apply pressure to the sample piece so as to keep the detection end of the reference sensor in direct contact with the support surface.

[0009] Optionally, the groove is filled with a thermally conductive material.

[0010] Optionally, the friction plate includes a brake shoe and / or a brake pad applied to a vehicle.

[0011] Optionally, the support table includes: a constant temperature container filled with a constant temperature liquid; a support frame disposed in the constant temperature liquid; and a constant temperature platform disposed on the support frame and extending out of the constant temperature liquid, the support surface being formed on the constant temperature platform.

[0012] Optionally, the reference sensor comprises a thermocouple temperature measuring wire.

[0013] Another aspect of the present disclosure provides a method for evaluating a friction plate temperature measurement method based on the device for evaluating the friction plate temperature measurement method described above, comprising: installing a reference sensor in a groove, and installing a temperature measuring sensor corresponding to the temperature measurement method in a blind hole in the same installation manner as the temperature measurement method; placing a sample piece installed with a reference sensor and a temperature measuring sensor on a supporting surface of a supporting table that maintains a preset temperature; obtaining measured temperatures of the reference sensor and the temperature measuring sensor within a predetermined time period; and evaluating the temperature measurement method based on the measured temperatures of the reference sensor and the temperature measuring sensor.

[0014] Optionally, the device also includes: installing temperature measuring sensors corresponding to each temperature measuring method using the same installation method as the multiple temperature measuring methods to obtain the measurement temperature corresponding to each temperature measuring method; changing the heating temperature, and determining a measurement curve corresponding to each temperature measuring sensor based on multiple measurement temperatures of each temperature measuring sensor; determining a reference curve based on the measurement temperature of the reference sensor; and determining the optimal temperature measurement method among the multiple temperature measurement methods based on the multiple measurement curves and the reference curve.

[0015] Another aspect of the present disclosure provides a braking system, comprising: a friction plate, having temperature measuring holes arranged at intervals from the friction parts of the friction plate; and a temperature measuring sensor corresponding to the optimal temperature measurement method determined by the device for evaluating the temperature measurement method of the friction plate described above, the temperature measuring sensor being installed in the temperature measuring hole based on the optimal temperature measurement method, and the temperature measuring sensor being configured to detect the temperature of the friction parts.

[0016] Another aspect of the present disclosure provides a rail vehicle, comprising: the braking system described above.

[0017] According to the embodiment of the present disclosure, by providing a support surface that provides a heating temperature, the heat generated by the friction part can be simulated. By providing a groove on the side of the sample that is in direct contact with the support surface, a reference sensor can be provided in the groove, so that the temperature of the support surface can be directly measured. By providing a blind hole at a position of the sample away from the support surface, a temperature measuring sensor can be provided in the blind hole to simulate the temperature detected during the actual operation of the friction plate. Furthermore, by providing a temperature measuring sensor type and an installation method that match the temperature measurement method to be evaluated, the measurement temperature corresponding to the temperature measurement method can be obtained. Based on the measurement temperature corresponding to the temperature measurement method and the measurement temperature measured by the reference sensor, the temperature measurement method can be evaluated, so that when it is determined that the evaluation result of the measurement method meets the measurement conditions, the friction plate can be measured using the measurement method to achieve the purpose of obtaining more accurate temperature data. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0019] Figure 1 A cross-sectional view schematically shows a device for evaluating a friction plate temperature measurement method according to an embodiment of the present disclosure.

[0020] Figure 2 A cross-sectional view of a sample according to an embodiment of the present disclosure is schematically shown.

[0021] Figure 3 A cross-sectional view of a support table according to an embodiment of the present disclosure is schematically shown.

[0022] Figure 4 A comparison diagram of multiple measurement curves and reference curves according to an embodiment of the present disclosure is schematically shown.

[0023] Reference numerals

[0024] 1. Support table; 11. Constant temperature container; 12. Support frame; 13. Constant temperature platform; 131. Support surface; 2. Sample piece; 21. Groove; 22. Blind hole; 3. Reference sensor; 31. Detection end; 4. Temperature sensor; 5. Counterweight. DETAILED DESCRIPTION

[0025] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present disclosure. In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present disclosure. However, it is apparent that one or more embodiments may also be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present disclosure.

[0026] The terms used herein are only for describing specific embodiments and are not intended to limit the present disclosure. The terms "comprise", "include", etc. used herein indicate the existence of the features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0027] All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0028] When using expressions such as "at least one of A, B, and C, etc.", they should generally be interpreted according to the meaning of the expression commonly understood by those skilled in the art (for example, "a system having at least one of A, B, and C" should include but is not limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.).

[0029] In the process of realizing the concept of the present disclosure, the inventor found that since the temperature sensor indirectly measures the temperature of the friction part, the installation method and type of the temperature sensor will cause obvious differences in the measurement of the temperature sensor, thereby failing to obtain more accurate temperature data. In order to obtain more accurate temperature data, the present disclosure provides a device for evaluating the friction plate temperature measurement method.

[0030] Figure 1 A cross-sectional view schematically shows a device for evaluating a friction plate temperature measurement method according to an embodiment of the present disclosure. Figure 2 A cross-sectional view of a sample according to an embodiment of the present disclosure is schematically shown.

[0031] like Figure 1-Figure 2As shown, the device may include a support platform 1 and a sample 2. The support platform 1 may have a support surface 131 that provides a heating temperature. The heating temperature provided by the support surface 131 can be used to simulate the temperature generated at the friction part of the friction plate. By measuring the temperature of the support surface 131, the temperature of the friction part can be simulated. The sample 2 can be arranged on the support surface 131. By arranging the sample 2 on the support surface 131, the support surface 131 can provide a heating temperature for the sample 2, so that the heat transfer on the friction plate during the working process of the friction plate can be simulated. For example, the heat transfer between the brake shoe and the wheel tread, and / or the brake pad and the brake disc is simulated. The material of the sample 2 and the friction plate can be the same. By measuring the temperature of the sample 2, the temperature of the friction plate can be simulated.

[0032] Furthermore, a groove 21 and a blind hole 22 may be formed on the sample 2. The groove 21 may be provided on a side of the sample 2 that is in direct contact with the support surface 131. Figure 1-Figure 2 As shown, the groove 21 can be formed by the bottom of the sample 2 being recessed inward. A reference sensor 3 can be arranged in the groove 21. After the reference sensor 3 is installed in the groove 21, the reference sensor 3 can directly contact the support surface 131, that is, the reference sensor 3 can directly measure the temperature of the support surface 131. The blind hole 22 can be arranged away from the support surface 131 relative to the groove 21, that is, after the sample 2 is arranged on the support surface 131, the blind hole 22 is arranged at a distance from the support surface 131. The blind hole 22 can be used to simulate the temperature measuring hole opened on the friction plate in the actual temperature measurement process.

[0033] According to the embodiment of the present disclosure, the same temperature measuring sensor 4 as in the temperature measuring method is installed in the blind hole 22 in the same installation manner as in the temperature measuring method, and the temperature measuring method can be evaluated based on the measured temperatures of the temperature measuring sensor 4 and the reference sensor 3. When the evaluation result of the measurement method meets the measurement condition, it can be characterized that the friction plate temperature data measured by the measurement method is relatively accurate temperature data. The measurement condition can be that the temperature difference between the measured temperatures measured by the temperature measuring sensor 4 and the reference sensor 3 is less than or equal to 20%.

[0034] The installation method in the temperature measurement method may include the size of the temperature measuring hole and the embedding method of the temperature measuring sensor 4 in the temperature measuring hole, so that the size of the blind hole 22 and the embedding method of the temperature measuring sensor 4 in the blind hole 22 can be determined based on the size of the temperature measuring hole and the embedding method of the temperature measuring sensor 4 in the temperature measuring hole. The size of the temperature measuring hole may include the diameter of the temperature measuring hole, the depth of the temperature measuring hole and the distance between the temperature measuring hole and the friction part. Thus, the diameter of the blind hole 22, the depth of the blind hole 22 and the distance between the blind hole 22 and the bottom of the sample 2 can be determined based on the diameter of the temperature measuring hole, the depth of the temperature measuring hole and the distance between the temperature measuring hole and the friction part. The types of the temperature measuring sensor 4 may include thermocouple sensors, resistance temperature detectors, armored temperature measuring sensors with metal sheaths, and thermocouple temperature measuring wires without protective measures. The embedding method of the temperature measuring hole may include embedding heat-conducting media and not embedding heat-conducting media. Further, different embedding methods of the temperature measuring holes may also include embedding different types of heat-conducting media.

[0035] According to the embodiment of the present disclosure, by providing a support surface 131 that provides a heating temperature, the heat generated by the friction part can be simulated. By providing a groove 21 on the side of the sample 2 that is in direct contact with the support surface 131, a reference sensor 3 can be provided in the groove 21, so that the temperature of the support surface 131 can be directly measured. By providing a blind hole 22 at a position away from the support surface 131 of the sample 2, a temperature sensor 4 can be provided in the blind hole 22 to simulate the temperature detected during the actual working process of the friction plate. Further, by providing a type of temperature sensor 4 that matches the temperature measurement method to be evaluated and its installation method, the measurement temperature corresponding to the temperature measurement method can be obtained. Based on the measurement temperature corresponding to the temperature measurement method and the measurement temperature measured by the reference sensor 3, the temperature measurement method can be evaluated, so that when it is determined that the evaluation result of the measurement method meets the measurement conditions, the friction plate can be measured using the measurement method to achieve the purpose of obtaining more accurate temperature data.

[0036] In some embodiments, the shape and size of the sample 2 can be set according to the shape and size of the friction plate. For example, the sample 2 can be set as a 60mm×60mm×20mm cuboid or a 60mm×60mm×60mm cube. The surfaces of the sample 2 and the support surface 131 can be polished to improve the flatness and smoothness of the sample 2 and the support surface 131, thereby ensuring that the sample 2 and the support surface 131 can be in good contact.

[0037] In some embodiments, the device may further include: a control unit. Further, based on the above description, a plurality of different temperature measurement methods may be evaluated to determine the optimal temperature measurement method. The control unit may determine the optimal temperature measurement method among the plurality of temperature measurement methods based on the temperature measured by the temperature measurement sensor 4 used in each temperature measurement method and the temperature measured by the reference sensor 3, so that the friction plate may be measured based on the optimal temperature measurement method during the actual operation of the friction plate, thereby achieving the purpose of obtaining more accurate temperature data. For example, the control unit may determine that the temperature measurement method that is closest to the temperature measured by the reference sensor 3 among the plurality of temperature measurement methods is the optimal temperature measurement method. A data collection unit may be connected between the control unit and the temperature measurement sensor 4 and the reference sensor 3. The data collection unit may transmit the collected temperature data to the control unit.

[0038] In some embodiments, the positional relationship between the blind hole 22 and the support surface 131 can be the same as the positional relationship between the temperature measuring hole and the friction part of the friction plate in the temperature measuring method. The shape of the blind hole 22 is the same as the shape of the temperature measuring hole in the temperature measuring method to more accurately simulate and measure the temperature of the friction plate.

[0039] In some embodiments, the device may further include: a counterweight 5. The counterweight 5 may be disposed on the sample 2. The counterweight 5 and the sample 2 may be a separate structure or an integrated structure. The counterweight 5 may apply pressure to the sample 2 to keep the detection end 31 of the reference sensor 3 in direct contact with the support surface 131, thereby improving the accuracy of the measurement of the reference sensor 3.

[0040] In some embodiments, the groove 21 may be filled with a thermally conductive material with a high thermal conductivity, thereby improving the accuracy of the measurement of the reference sensor 3. For example, the thermally conductive material is a thermally conductive silicone grease that can withstand high temperatures.

[0041] In some embodiments, the friction plate includes brake shoes and / or brake pads applied to the vehicle to achieve more accurate acquisition of temperature data of the brake shoes and / or brake pads, to achieve accurate monitoring of the temperature of the brake shoes and / or brake pads, and to ensure the safety of the brake shoes and / or brake pads.

[0042] In some embodiments, the depth and length of the groove 21 can be set according to the type of the reference sensor 3. The depth and length of the groove 21 need to ensure that after the reference sensor 3 is installed on the sample 2 and the sample 2 is set on the support surface 131, the detection end 31 of the reference sensor 3 and the bottom of the sample 2 can both be in good contact with the support surface 131, avoiding the presence of a gap between the sample 2 and the support surface 131, which affects the detection accuracy of the reference sensor 3. The reference sensor 3 may include a thermocouple sensor, a resistance temperature detector, an armored temperature sensor with a metal sheath, and a thermocouple temperature measuring line without protective measures. Preferably, the reference sensor 3 is a thermocouple temperature measuring line, so that the temperature can be detected relatively quickly, and because the temperature measuring line has a small volume, the gap between the sample 2 and the support surface 131 can be effectively avoided. Further, the temperature measuring line and the detection end 31 at the end of the thermocouple temperature measuring line can be wrapped with a thermal conductive material so that the detection end 31 is fully in contact with the support surface 131, so that the temperature change of the support surface 131 can be quickly responded. The detection end 31 may be a welding point of a thermocouple temperature measuring wire. Figure 2 As shown, the side of the temperature measuring line away from the detection end 31 can be bent on the side of the sample 2 and run upward close to the side of the sample 2. The temperature measuring line can be attached and fixed to the side of the sample 2 with an aluminum foil tape with good heat resistance. The end of the temperature measuring line away from the detection end 31 can be connected to the control unit.

[0043] Figure 3 A cross-sectional view of a support table according to an embodiment of the present disclosure is schematically shown.

[0044] like Figure 3 As shown, in some embodiments, the support table 1 may include a constant temperature container 11, a support frame 12 and a constant temperature platform 13. The constant temperature container 11 may be filled with a constant temperature liquid. The constant temperature liquid may be a liquid that can have a better heat preservation effect. For example, the constant temperature liquid may be tap water, oil, salt water, etc. The support frame 12 may be disposed in the constant temperature liquid. The constant temperature platform 13 may be disposed on the support frame 12 and extend the constant temperature liquid, and a support surface 131 may be formed on the constant temperature platform 13. The support frame 12 and the constant temperature platform 13 may be made of a metal material with a better heat conduction effect, so that the support surface 131 can reach a preset temperature.

[0045] The present disclosure also provides a method for evaluating a friction plate temperature measurement method based on the above-mentioned device for evaluating a friction plate temperature measurement method. The method includes the following steps S110 to S140.

[0046] In step S110 , the reference sensor 3 is installed in the groove 21 , and the temperature measurement sensor 4 corresponding to the temperature measurement method is installed in the blind hole 22 in the same installation manner as the temperature measurement method.

[0047] In step S120, the sample 2 equipped with the reference sensor 3 and the temperature sensor 4 is placed on the support surface 131 of the support platform 1 which maintains a preset temperature. The preset temperature can be set to a fixed value or a variable value as required.

[0048] In step S130, the measured temperatures of the reference sensor 3 and the temperature measuring sensor 4 are obtained within a predetermined period of time. The predetermined period of time can be set as required, for example, 20 minutes, 25 minutes, and 30 minutes.

[0049] In step S140 , the temperature measurement method is evaluated based on the measured temperatures of the reference sensor 3 and the temperature measurement sensor 4 .

[0050] According to the embodiment of the present disclosure, after the support surface 131 is raised to a preset temperature, the sample 2 is placed on the support surface 131. Since there is a large temperature difference between the sample 2 and the support surface 131, the temperature of the support surface 131 decreases while the sample 2 absorbs heat and the temperature increases. As time goes by, the temperature of the support surface 131 gradually returns to the preset temperature due to the continuous heating of the constant temperature liquid below. The larger the area of ​​the support surface 131 and the higher the power, the shorter the time it takes for the temperature to return to the preset temperature. When it is determined that the temperature of the support surface 131 has returned to the preset temperature, the temperature measurement method can be evaluated based on the measured temperatures of the reference sensor 3 and the temperature measurement sensor 4.

[0051] According to the embodiment of the present disclosure, the reference sensor 3 is used to directly measure the temperature of the support surface 131. The temperature sensor 4 is set to simulate the temperature detected during the actual operation of the friction plate. Further, by setting the type of temperature sensor 4 and its installation method that match the temperature measurement method to be evaluated, the measurement temperature corresponding to the temperature measurement method can be obtained. Based on the measurement temperature corresponding to the temperature measurement method and the measurement temperature measured by the reference sensor 3, the temperature measurement method can be evaluated, so that when it is determined that the evaluation result of the measurement method meets the measurement conditions, the friction plate can be measured using the measurement method to achieve the purpose of obtaining more accurate temperature data.

[0052] In some embodiments, the method may further include the following steps S110 to S140.

[0053] In step S150, the temperature measuring sensor 4 corresponding to each temperature measuring method is installed using the same installation method as the multiple temperature measuring methods to obtain the measured temperature corresponding to each temperature measuring method.

[0054] In step S160 , when the preset temperature may be a variable value, a measurement curve corresponding to each temperature measuring sensor 4 may be determined based on a plurality of measured temperatures of each temperature measuring sensor 4 by changing the heating temperature.

[0055] In step S170 , a reference curve is determined based on the measured temperature of the reference sensor 3 .

[0056] In step S180, based on the multiple measurement curves and the reference curve, an optimal temperature measurement method among the multiple temperature measurement methods is determined.

[0057] According to the embodiment of the present disclosure, after determining the optimal temperature measurement method among multiple temperature measurement methods, the friction plate can be measured based on the optimal temperature measurement method during the actual working process of the friction plate, thereby achieving the purpose of obtaining more accurate temperature data.

[0058] Figure 4 A comparison diagram of multiple measurement curves and reference curves according to an embodiment of the present disclosure is schematically shown.

[0059] like Figure 4 As shown, three temperature measurement methods were tested. The first temperature measurement method is that the temperature sensor 4 is a thermocouple temperature measuring wire and is filled with thermal conductive silicone grease. The second temperature measurement method is that the temperature sensor 4 is a thermocouple temperature measuring wire and is not filled with thermal conductive silicone grease. The third temperature measurement method is that the temperature sensor 4 is an armored temperature measuring sensor and is not filled with thermal conductive silicone grease. Figure 4 It can be seen that the temperature measurement curve of the first temperature measurement method is closest to the reference curve. Therefore, it can be determined that the first temperature measurement method is the optimal temperature measurement method among the three temperature measurement methods.

[0060] The present disclosure also provides a braking system. The braking system may include a friction plate and a temperature measuring sensor 4 corresponding to the optimal temperature measuring method determined by the device for evaluating the temperature measuring method of the friction plate described above. The friction plate may be provided with a temperature measuring hole spaced apart from the friction part of the friction plate. The temperature measuring sensor 4 may be used to detect the temperature of the friction part. Further, the temperature measuring sensor 4 may be installed in the temperature measuring hole based on the optimal temperature measuring method, so that more accurate temperature data may be obtained to more accurately monitor the temperature of the friction plate.

[0061] The present disclosure also provides a rail vehicle. The rail vehicle may include the braking system described above. Since the temperature of the friction plate can be monitored more accurately, the safety of the rail vehicle can be improved.

[0062] It will be appreciated by those skilled in the art that the features described in the various embodiments of the present disclosure may be combined and / or combined in a variety of ways, even if such combinations or combinations are not explicitly described in the present disclosure. In particular, without departing from the spirit and teachings of the present disclosure, the features described in the various embodiments of the present disclosure may be combined and / or combined in a variety of ways. All of these combinations and / or combinations fall within the scope of the present disclosure.

[0063] The embodiments of the present disclosure are described above. However, these embodiments are only for illustrative purposes and are not intended to limit the scope of the present disclosure. Although the embodiments are described above, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. Without departing from the scope of the present disclosure, those skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. A device for evaluating a friction plate temperature measurement method, characterized in that: include: A support table having a support surface providing a heating temperature; as well as A sample piece is arranged on the supporting surface, and the sample piece and the friction plate are made of the same material; Wherein, the sample piece is formed with: A groove is provided on a side of the sample piece that is in direct contact with the support surface, wherein a reference sensor is disposed in the groove; as well as A blind hole is arranged away from the supporting surface relative to the groove, and a temperature measuring sensor same as that in the temperature measuring method is installed in the blind hole in the same installation manner as that in the temperature measuring method, so as to evaluate the temperature measuring method based on the measured temperatures of the temperature measuring sensor and the reference sensor.

2. The device for evaluating the friction plate temperature measurement method according to claim 1, characterized in that: Also includes: The control unit determines an optimal temperature measurement method among the multiple temperature measurement methods based on the temperature measured by the temperature measurement sensor used in each of the multiple temperature measurement methods and the temperature measured by the reference sensor.

3. The device for evaluating the friction plate temperature measurement method according to any one of claims 1 to 2, characterized in that: The positional relationship between the blind hole and the support surface is the same as the positional relationship between the temperature measuring hole and the friction part of the friction plate in the temperature measuring method; and The shape of the blind hole is the same as the shape of the temperature measuring hole in the temperature measuring method.

4. The device for evaluating the temperature measurement method of a friction plate according to any one of claims 1 to 2, characterized in that: Also includes: A counterweight is arranged on the sample piece to apply pressure to the sample piece so as to keep the detection end of the reference sensor in direct contact with the support surface.

5. The device for evaluating the friction plate temperature measurement method according to any one of claims 1 to 2, characterized in that: The groove is filled with heat conductive material.

6. The device for evaluating the friction plate temperature measurement method according to any one of claims 1 to 2, characterized in that: The friction plate includes a brake shoe and / or a brake pad applied to a vehicle.

7. The device for evaluating the friction plate temperature measurement method according to any one of claims 1 to 2, characterized in that: The support platform includes: a constant temperature container filled with a constant temperature liquid; A support frame, disposed in the constant temperature liquid; as well as The constant temperature platform is arranged on the support frame and extends the constant temperature liquid. The support surface is formed on the constant temperature platform.

8. The device for evaluating the friction plate temperature measurement method according to any one of claims 1 to 2, characterized in that: The reference sensor includes a thermocouple temperature measuring wire.

9. A method for evaluating a friction plate temperature measurement method based on the device for evaluating a friction plate temperature measurement method according to any one of claims 1 to 2, characterized in that: include: Installing a reference sensor in the groove, and installing a temperature measuring sensor corresponding to the temperature measuring method in the blind hole in the same installation manner as the temperature measuring method; The sample piece equipped with the reference sensor and the temperature sensor is placed on the support surface of the support table which maintains the preset temperature; Obtaining the measured temperatures of the reference sensor and the temperature measuring sensor within a predetermined period of time; as well as The temperature measurement method is evaluated based on the measured temperatures of the reference sensor and the temperature measurement sensor.

10. The method for evaluating the temperature measurement method of a friction plate according to claim 9, characterized in that: Also includes: Using the same installation method as the multiple temperature measurement methods, respectively install the temperature measurement sensor corresponding to each temperature measurement method to obtain the measured temperature corresponding to each temperature measurement method; Changing the heating temperature, and determining a measurement curve corresponding to each temperature measuring sensor based on a plurality of measured temperatures of each temperature measuring sensor; determining a reference curve based on a measured temperature of the reference sensor; as well as Based on the multiple measurement curves and the reference curve, an optimal temperature measurement method among the multiple temperature measurement methods is determined.

11. A braking system, characterized in that: include: The friction plate is provided with a temperature measuring hole spaced apart from the friction part of the friction plate; as well as A temperature measuring sensor corresponding to the optimal temperature measuring method determined by the device for evaluating the temperature measuring method of the friction plate described in claim 2 above is installed in the temperature measuring hole based on the optimal temperature measuring method, and the temperature measuring sensor is configured to detect the temperature of the friction part.

12. A rail vehicle, characterized in that: include: The braking system as claimed in claim 11 above.

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