A semi-steel radial dual-guide all-season tire low-temperature tester and test method

Abstract

The invention discloses a semi-steel radial double-guide all-season tire low-temperature tester and a test method, which relate to the technical field of tire production. The test frame comprises a detection frame, wherein an operation measuring plate is inserted inside the detection frame, and a liquid nitrogen uniform temperature control component is cooperated with an array type platinum resistance temperature sensor and a high-precision temperature sensor in series to form a consistent temperature detection for the inside and outside of the tire, so as to ensure that the cross-section spray mist end can be aimed at different areas of the tire to achieve uniform spraying, and liquid nitrogen is transported from a liquid nitrogen pump box to the cross-section spray mist end through a liquid nitrogen guide valve pipe, and is uniformly sprayed onto the tire surface through a nozzle to achieve rapid cooling, and is convenient for adjusting the liquid nitrogen spray amount and spray time through an external PLC controller, so as to ensure that the tire surface temperature reaches and is maintained in a predetermined low temperature range, so as to ensure that no cracks or other damages are generated under low temperature conditions, and so as to ensure that the tire surface temperature is uniformly distributed, thereby improving cooling efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of tire production, in particular to a semi-steel radial dual-guide all-season tire low-temperature tester and a test method. Background Art

[0002] Tires are mainly composed of rubber. Rubber materials have the characteristics of becoming harder, easily vitrified and fragile at low temperatures, which can cause the tires to crack after long-term use, resulting in tire failure.

[0003] However, in the prior art, when a semi-steel radial dual-guide all-season tire is subjected to a low-temperature test, the temperature at different positions in the test chamber may be different, resulting in inconsistent temperatures in different parts of the tire, affecting the reliability and repeatability of the test. Therefore, it is necessary to propose a semi-steel radial dual-guide all-season tire low-temperature tester and test method. Summary of the invention

[0004] The purpose of the present invention is to provide a semi-steel radial dual-guide all-season tire low-temperature testing instrument and testing method to solve the problem proposed in the above background technology that when conducting a low-temperature test on a semi-steel radial dual-guide all-season tire, the temperature at different positions in the test room may be different, resulting in inconsistent temperatures at different parts of the tire, affecting the reliability and repeatability of the test.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a semi-steel radial dual-guide all-season tire low-temperature tester, comprising a detection frame, an operating test plate is inserted inside the detection frame, and the left and right side ends of the detection frame are respectively fastened with a transverse linear rail and a load-bearing sliding rail frame, and the inside of the transverse linear rail and the load-bearing sliding rail frame is fastened with a gantry through the side of a sliding saddle, a liquid nitrogen pump box is installed on the top of the gantry, and a liquid nitrogen uniform temperature control component is installed at the bottom of the gantry;

[0006] The liquid nitrogen uniform temperature control component includes a connecting cross frame, which is located at the top of the gantry frame, and the bottom surface and side surface of the connecting cross frame are respectively provided with sliding grooves, and the side wall surface of the connecting cross frame is fastened to a motor frame, and an operating displacement motor is installed inside the motor frame, and the bottom output end of the operating displacement motor is connected to a rotating gear, and the side end of the rotating gear is meshed and connected with a moving rack, and the side end of the moving rack is fastened to a sliding connection seat, and the moving rack and the sliding connection seat are located in the sliding groove and connected in a sliding manner, and the bottom of the sliding connection seat is fastened to a rotating motor box, and the bottom output end of the rotating motor box is connected to an adjustable dual-axis arm frame, and a cross-sectional spray mist end is installed at the bottom end of the adjustable dual-axis arm frame, and the side end of the cross-sectional spray mist end is connected to a liquid nitrogen guide valve pipe, and the side end of the liquid nitrogen guide valve pipe is connected to a liquid nitrogen pump box.

[0007] Preferably, a driving motor is mounted on the inner side of the detection frame, the output end of the driving motor is connected to a chain gear structure, a hollow rotating rod is mounted on the center end of the large gear of the chain gear structure, and a tire is sleeved on the outer circumference of the hollow rotating rod.

[0008] Preferably, the side ends of the tire are connected through an air duct inside a hollow rotating rod, the left and right ends of the hollow rotating rod are fastened to the two side surfaces of the detection frame through bearings, the bottom of the tire is in contact with the top wall surface of the working measuring plate, and an array-type platinum resistance temperature sensor is installed inside the tire.

[0009] Preferably, a small compressor, a high-efficiency evaporator and a high-efficiency cooler are respectively installed inside the detection frame, and the small compressor, the high-efficiency evaporator and the high-efficiency cooler are connected in sequence.

[0010] Preferably, the output end of the high-efficiency cooler is connected to a condensation valve pipe, and the side end of the condensation valve pipe and the air guide pipe are connected via a quick connector.

[0011] Preferably, an inert gas guide tank is mounted on the top of the side end of the detection frame, the side end of the inert gas guide tank is connected to a gas guide pump pipe, and the side end of the gas guide pump pipe passes through and is connected to the detection box.

[0012] Preferably, the detection box is located outside the tire to form protection, and the bottom of the detection box is located on both sides of the working measuring plate, a guide fan is installed on the top side of the detection box, and a high-precision temperature sensor is installed inside the detection box. The high-precision temperature sensor and the array platinum resistance temperature sensor form a wireless signal series connection.

[0013] Preferably, the side wall surface of the detection box is connected to an extraction pump, and the bottom end of the extraction pump is connected to a storage box through a pipeline.

[0014] Preferably, the surface of the detection box is connected with a conveying pipeline, the top of the conveying pipeline is connected with a sand and gravel classification and conveying box, and the sand and gravel classification and conveying box is mounted on the surface of the detection frame.

[0015] A test method for a semi-steel radial dual-guide all-season tire low-temperature tester comprises the following steps:

[0016] S1. First, place the semi-steel radial dual-guide all-season tire to be tested outside the hollow rotating rod, and then drive the tire to rotate inside the testing box under the cooperation of the driving motor and the chain gear structure, and form contact with the top wall surface of the working test plate;

[0017] S2. Then, the small compressor, high-efficiency evaporator and high-efficiency cooler are started in sequence, and the condensed fluid is transported to the tire through the connection between the condensation valve pipe and the air guide pipe. Then, the array platinum resistance temperature sensor and the high-precision temperature sensor are coordinated in series to form a consistent temperature detection for the inside and outside of the tire. The outer carcass of the tire is thicker and has poor conductivity, so the liquid nitrogen uniform temperature control component is started to control the liquid nitrogen spraying to the outside of the uniformly rotating tire to keep consistent with the internal low temperature environment.

[0018] S3, then, guide the inert gas in the inert gas guide tank to the inside of the detection box through the gas guide pump tube, and guide and disperse the inert gas into the detection box under the action of the guide fan;

[0019] S4. After that, the conveying pipeline is used to transport the materials in the sand and gravel classification conveying box to the working test plate according to the needs, which is used to simulate the tire usage in different terrains and in low temperature environments. Secondly, different materials are extracted and transported to the storage box through the extraction pump.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In the present invention, by cooperating with the liquid nitrogen uniform temperature control component, the array type platinum resistance temperature sensor and the high-precision temperature sensor in series, the inside and outside of the tire are subjected to consistent temperature detection, the operation displacement motor is started, and the movable rack is driven to slide in the sliding groove rail by rotating the gear, so that the sliding connection seat is moved to a predetermined position, and then the rotating motor box is started, and the angle of the double-axis arm frame is adjusted to ensure that the cross-section spray mist end is aligned with the tire surface, and then the liquid nitrogen guide valve pipe is opened to allow the liquid nitrogen to be transported from the liquid nitrogen pump box to the cross-section spray mist end, so that the cross-section spray mist end can evenly spray liquid nitrogen onto the tire surface for cooling treatment, that is, the operation displacement motor rotates the gear to drive the movable rack to slide in the sliding groove rail, so that the sliding connection seat is moved to a predetermined position, and then the rotating motor box is started, and the angle of the double-axis arm frame is adjusted to ensure that the cross-section spray mist end is aligned with the tire surface, and then the liquid nitrogen guide valve pipe is opened to allow the liquid nitrogen to be transported from the liquid nitrogen pump box to the cross-section spray mist end, so that the cross-section spray mist end can evenly spray liquid nitrogen onto the tire surface for cooling treatment. The wheel and the movable rack realize the horizontal movement of the sliding connection seat, ensuring that the cross-sectional spray mist end can cover the entire surface of the tire, and the rotating motor box adjusts the angle of the double-axis arm to ensure that the cross-sectional spray mist end can be aimed at different areas of the tire to achieve uniform spraying. Liquid nitrogen is transported from the liquid nitrogen pump box to the cross-sectional spray mist end through the liquid nitrogen guide valve pipe, and is evenly sprayed onto the tire surface through the nozzle to achieve rapid cooling. It is convenient to adjust the liquid nitrogen injection amount and injection time through an external PLC controller to ensure that the tire surface temperature reaches and remains in a predetermined low temperature range, ensure that it will not produce cracks or other damage under low temperature conditions, ensure that the tire surface temperature is evenly distributed, and improve cooling efficiency.

[0022] 2. In the present invention, the conveying pipeline and the gravel classification and conveying box are used to convey the gravel from the gravel classification and conveying box to the detection box to simulate different road conditions. By changing the type and amount of gravel, the tire performance test under different road conditions can be simulated, and the gas or gravel in the detection box can be extracted by an extraction pump to prevent excessive accumulation of gas or gravel, which may affect the test results. The storage box stores the extracted gas for subsequent processing or discharge. At the same time, the inert gas (such as nitrogen) in the inert gas guide tank is guided out through a gas guide pump pipe and conveyed to the detection box to prevent moisture from condensing on the surface of the tire and affecting the experimental results. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the main structure of a semi-steel radial dual-guide all-season tire low-temperature tester of the present invention;

[0024] Figure 2 It is a schematic structural diagram of a side view of a semi-steel radial dual-guide all-season tire low-temperature tester of the present invention;

[0025] Figure 3 It is a schematic diagram of the installation position of the tire in a semi-steel radial dual-guide all-season tire low-temperature tester of the present invention;

[0026] Figure 4It is a structural schematic diagram of a liquid nitrogen uniform temperature control component in a semi-steel radial dual-guide all-season tire low-temperature tester of the present invention;

[0027] Figure 5 It is a schematic diagram of the installation position structure of the driving motor and the chain gear structure in a semi-steel radial dual-guide all-season tire low-temperature tester of the present invention;

[0028] Figure 6 The present invention is a schematic diagram of the installation position structure of a small and medium-sized compressor, a high-efficiency evaporator and a high-efficiency cooler of a semi-steel radial dual-guide all-season tire low-temperature tester.

[0029] In the figure: 1. Detection frame; 2. Detection box; 3. Small compressor; 4. High-efficiency evaporator; 5. High-efficiency cooler; 6. Condensation valve pipe; 8. Diversion fan; 9. Tire; 10. Hollow rotating rod; 11. Inert gas guide tank; 12. Gas guide pump pipe; 13. Sand and gravel classification and transportation box; 14. Extraction pump; 15. Storage box; 16. Horizontal linear rail; 17. Load-bearing sliding rail frame; 18. Gantry; 19. Liquid nitrogen uniform temperature control component ; 190, connecting cross frame; 191, motor frame; 192, operation displacement motor; 193, rotating gear; 194, moving rack; 195, sliding groove rail; 196, sliding connection seat; 197, rotating motor box; 198, adjusting double-axis arm frame; 199, cross-sectional spray mist end; 1990, liquid nitrogen guide valve pipe; 20, liquid nitrogen pump box; 21, operation measuring plate; 22, driving motor; 23, chain gear structure; 24, conveying pipeline. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the present invention, reference is made to Figure 1 - Figure 6As shown: a semi-steel radial dual-guide all-season tire low-temperature tester, including a detection frame 1, an operating test plate 21 is inserted inside the detection frame 1, and the left and right side ends of the detection frame 1 are respectively fastened with a transverse linear rail 16 and a load-bearing sliding rail frame 17, and the inside of the transverse linear rail 16 and the load-bearing sliding rail frame 17 is fastened with a gantry frame 18 through the side of the sliding saddle, and a liquid nitrogen pump box 20 is installed on the top of the gantry frame 18, and a liquid nitrogen uniform temperature control component 19 is installed at the bottom end of the gantry frame 18; the liquid nitrogen uniform temperature control component 19 includes a connecting cross frame 190, the connecting cross frame 190 is located at the top of the frame of the gantry frame 18, and the bottom surface and side surface of the connecting cross frame 190 are respectively provided with sliding groove rails 195, and the side wall surface of the connecting cross frame 190 is fastened with a motor frame 19 1. An operating displacement motor 192 is installed inside the motor frame 191, and a rotating gear 193 is connected to the bottom output end of the operating displacement motor 192. A moving rack 194 is meshedly connected to the side end of the rotating gear 193, and a sliding connection seat 196 is fastened to the side end of the moving rack 194. The moving rack 194 and the sliding connection seat 196 are located in the sliding groove 195 and are slidably connected. A rotating motor box 197 is fastened to the bottom of the sliding connection seat 196. An adjustable dual-axis arm frame 198 is connected to the bottom output end of the rotating motor box 197. A cross-sectional spray mist end 199 is installed at the bottom end of the adjustable dual-axis arm frame 198. The side end of the cross-sectional spray mist end 199 is connected to a liquid nitrogen guide valve pipe 1990, and the side end of the liquid nitrogen guide valve pipe 1990 is connected to a liquid nitrogen pump box 20.

[0032] In a specific solution, the gantry 18 is moved on the transverse linear rail 16 and the load-bearing sliding rail frame 17 through the sliding saddle to ensure that it can be accurately positioned above the tire 9 and the position of the gantry 18 is accurate. Then, the operation displacement motor 192 is started, and the moving rack 194 is driven to slide in the sliding groove rail 195 by rotating the gear 193, so that the sliding connection seat 196 moves to a predetermined position. Next, the rotating motor box 197 is started to adjust the angle of the double-axis arm frame 198 to ensure that the cross-sectional spray mist end 199 is aligned with the surface of the tire 9. Then, the liquid nitrogen guide valve pipe 1990 is opened to allow liquid nitrogen to be transported from the liquid nitrogen pump box 20 to the cross-sectional spray mist end 199, so that the cross-sectional spray mist end 199 can evenly spray liquid nitrogen onto the surface of the tire 9 for cooling treatment. That is, the operation displacement motor 192 realizes the sliding connection seat 196 by rotating the gear 193 and moving the rack 194. 6 moves horizontally to ensure that the cross-sectional spray mist end 199 can cover the entire surface of the tire 9, and the rotating motor box 197 ensures that the cross-sectional spray mist end 199 can be aimed at different areas of the tire 9 by adjusting the angle of the double-axis arm 198 to achieve uniform spraying. Liquid nitrogen is transported from the liquid nitrogen pump box 20 to the cross-sectional spray mist end 199 through the liquid nitrogen guide valve pipe 1990, and is evenly sprayed onto the surface of the tire 9 through the nozzle to achieve rapid cooling. In addition, with the cooperation of high-precision temperature sensors installed on the surface of the tire 9 and the surrounding environment and array-type platinum resistance temperature sensors inside the tire 9, temperature changes are monitored in real time, so that the liquid nitrogen spray amount and spray time can be adjusted through an external PLC controller to ensure that the surface temperature of the tire 9 reaches and remains in a predetermined low temperature range, ensure that it will not produce cracks or other damage under low temperature conditions, ensure that the surface temperature of the tire 9 is evenly distributed, and improve the cooling efficiency.

[0033] In the present invention, according to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, a driving motor 22 is mounted on the inner side of the detection frame 1, the output end of the driving motor 22 is connected to a chain gear structure 23, a hollow rotating rod 10 is mounted on the center end of the large gear of the chain gear structure 23, and a tire 9 is sleeved on the outer circumference of the hollow rotating rod 10.

[0034] The side ends of the tire 9 are connected through the air duct inside the hollow rotating rod 10. The left and right ends of the hollow rotating rod 10 are fastened to the two side surfaces of the detection frame 1 through bearing parts. The bottom of the tire 9 is in contact with the top wall surface of the working measuring plate 21. An array-type platinum resistance temperature sensor is installed inside the tire 9.

[0035] A small compressor 3, a high-efficiency evaporator 4 and a high-efficiency cooler 5 are respectively installed inside the detection frame 1, and the small compressor 3, the high-efficiency evaporator 4 and the high-efficiency cooler 5 are connected in sequence.

[0036] The output end of the high-efficiency cooler 5 is connected to a condensation valve pipe 6, and the side end of the condensation valve pipe 6 and the air guide pipe are connected through a quick connector.

[0037] In a specific scheme, the small compressor 3 is started to compress the refrigerant and make it enter the high-efficiency evaporator 4. The high-efficiency evaporator 4 converts the refrigerant from liquid to gas, absorbs heat, and lowers the ambient temperature. The high-efficiency cooler 5 is used to convert the refrigerant from gas to liquid, releases heat, and completes the refrigeration cycle, so that the condensation valve tube 6 can transport the refrigerant to the air duct inside the hollow rotating rod 10, further reducing the internal temperature of the tire 9 and ensuring that the temperature inside and outside the tire 9 is consistent. Then the drive motor 22 is started to drive the chain gear structure 23 to rotate, so that the hollow rotating rod 10 drives the tire 9 to rotate. When the tire 9 rotates, the air duct inside the hollow rotating rod 10 and the hollow rotating rod 10 form a stator and rotor structure.

[0038] In the present invention, according to Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, an inert gas guide tank 11 is mounted on the top of the side end of the detection frame 1, and the side end of the inert gas guide tank 11 is connected to a gas guide pump tube 12, and the side end of the gas guide pump tube 12 penetrates and is connected to the detection box 2.

[0039] The detection box 2 is located outside the tire 9 to form a protection, and the bottom of the detection box 2 is located on both sides of the working measuring plate 21. The top side of the detection box 2 is installed with a guide fan 8. A high-precision temperature sensor is installed inside the detection box 2. The high-precision temperature sensor and the array platinum resistance temperature sensor form a wireless signal series connection.

[0040] The side wall surface of the detection box body 2 is connected to an extraction pump 14, and the bottom end of the extraction pump 14 is connected to a storage box 15 through a pipeline.

[0041] The surface of the detection box 2 is connected with a conveying pipeline 24 , and the top of the conveying pipeline 24 is connected with a sand and gravel classification and conveying box 13 . The sand and gravel classification and conveying box 13 is mounted on the surface of the detection frame 1 .

[0042] In a specific scheme, when the above-mentioned tire 9 is subjected to a low-temperature test, the conveying pipeline 24 is used to convey sand and gravel from the sand and gravel classification and conveying box 13 to the detection box 2 to simulate different road conditions. By changing the type and amount of sand and gravel, the tire performance test under different road conditions can be simulated, and the extraction pump 14 can be used to extract the gas or sand and gravel in the detection box 2 to prevent excessive accumulation of gas or sand and gravel, which affects the test results. The storage box 15 stores the extracted gas for subsequent processing or discharge. At the same time, the inert gas (such as nitrogen) in the inert gas guide tank 11 is guided out through the gas guide pump pipe 12 and conveyed to the detection box 2 to avoid moisture condensation on the surface of the tire 9 and affect the experimental results. In a low-temperature environment, the performance of the tire 9 is evaluated by various external test equipment and key parameters are recorded.

[0043] The wiring diagram of the small compressor 3, high-efficiency evaporator 4, high-efficiency cooler 5, extraction pump 14, operating displacement motor 192, liquid nitrogen pump box 20, drive motor 22, high-precision temperature sensor and array-type platinum resistance temperature sensor in the present invention belongs to the common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method and wiring arrangement of the small compressor 3, high-efficiency evaporator 4, high-efficiency cooler 5, extraction pump 14, operating displacement motor 192, liquid nitrogen pump box 20, drive motor 22, high-precision temperature sensor and array-type platinum resistance temperature sensor are no longer explained in detail.

[0044] The method of use and working principle of the device are as follows: first, the semi-steel radial double-guided all-season tire to be tested is placed outside the hollow rotating rod 10, and then, with the cooperation of the driving motor 22 and the chain gear structure 23, the tire 9 is driven to rotate inside the detection box 2 and form contact with the top wall surface of the working measuring plate 21, and the small compressor 3, the high-efficiency evaporator 4 and the high-efficiency cooler 5 are started in sequence, and the condensed fluid is transported to the tire 9 through the connection between the condensation valve pipe 6 and the air guide pipe, and then, with the array-type platinum resistance temperature sensor and the high-precision temperature sensor in series, a consistent temperature detection is formed on the inside and outside of the tire 9, and the outer carcass of the tire 9 is thick and has poor conductivity, and then the transverse linear rail 16 is started, so that the gantry 18 passes through the slide The movable saddle moves on the transverse linear rail 16 and the load-bearing sliding rail frame 17 to ensure that it can be accurately positioned above the tire 9 and the position of the gantry 18 is accurate. Then the operation displacement motor 192 is started, and the movable rack 194 is driven to slide in the sliding groove rail 195 by rotating the gear 193, so that the sliding connection seat 196 moves to the predetermined position. Next, the rotating motor box 197 is started to adjust the angle of the double-axis arm frame 198 to ensure that the cross-sectional spray mist end 199 is aligned with the surface of the tire 9. Then, the liquid nitrogen guide valve pipe 1990 is opened to allow the liquid nitrogen to be transported from the liquid nitrogen pump box 20 to the cross-sectional spray mist end 199, so that the cross-sectional spray mist end 199 can evenly spray liquid nitrogen onto the surface of the tire 9 for cooling. That is, the operation displacement motor 192 is turned by The movable gear 193 and the movable rack 194 realize the horizontal movement of the sliding connection seat 196, ensuring that the cross-sectional spray mist end 199 can cover the entire surface of the tire 9, and the rotating motor box 197 adjusts the angle of the double-axis arm 198 to ensure that the cross-sectional spray mist end 199 can be aimed at different areas of the tire 9 to achieve uniform spraying. Liquid nitrogen is transported from the liquid nitrogen pump box 20 to the cross-sectional spray mist end 199 through the liquid nitrogen guide valve pipe 1990, and is uniformly sprayed onto the surface of the tire 9 through the nozzle to achieve rapid cooling. In addition, high-precision temperature sensors are installed on the surface of the tire 9 and the surrounding environment, and array-type platinum resistance temperature sensors inside the tire 9 cooperate to monitor temperature changes in real time, so that the liquid nitrogen spray amount and spray time can be adjusted through an external PLC controller. During the test, the surface temperature of the tire 9 is ensured to reach and remain within a predetermined low temperature range, so that no cracks or other damage will occur under low temperature conditions, and the surface temperature of the tire 9 is evenly distributed, so as to improve the cooling efficiency. When the tire 9 is subjected to a low temperature test, the conveying pipeline 24 is used to convey the gravel from the gravel classification conveying box 13 to the detection box 2 to simulate different road conditions. By changing the type and amount of gravel, the tire performance test under different road conditions can be simulated, and the extraction pump 14 can be used to extract the gas or gravel in the detection box 2 to prevent excessive accumulation of gas or gravel and affect the test results. The storage box 15 stores the extracted gas for subsequent treatment or discharge. At the same time, the gas is conveyed through the gas guide pump pipe 12.The inert gas (such as nitrogen) in the inert gas guide tank 11 is guided out and transported to the detection box 2 to prevent moisture from condensing on the surface of the tire 9 and affecting the experimental results. In a low temperature environment, the performance of the tire 9 is evaluated through various external test equipment and key parameters are recorded.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A semi-steel radial dual-guide all-season tire low temperature tester, characterized in that: The invention comprises a detection frame (1), wherein an operation measuring plate (21) is inserted into the frame of the detection frame (1), and the left and right side ends of the detection frame (1) are respectively fastened to a transverse linear rail (16) and a load-bearing sliding rail frame (17), and the inside of the transverse linear rail (16) and the load-bearing sliding rail frame (17) is fastened to a gantry (18) through the side of a sliding saddle, a liquid nitrogen pump box (20) is installed on the top of the gantry (18), and a liquid nitrogen uniform temperature control component (19) is installed on the bottom of the gantry (18); The liquid nitrogen uniform temperature control component (19) comprises a connecting cross frame (190), the connecting cross frame (190) is located at the top of the frame of the gantry frame (18), the bottom surface and the side surface of the connecting cross frame (190) are respectively provided with sliding groove rails (195), the side wall surface of the connecting cross frame (190) is fastened to a motor frame (191), an operating displacement motor (192) is mounted inside the motor frame (191), a rotating gear (193) is connected to the bottom output end of the operating displacement motor (192), a side end of the rotating gear (193) is meshedly connected to a moving rack (194), and the moving rack (194) is meshedly connected to the side wall surface of the connecting cross frame (190). 94), the side end of which is fastenedly connected to a sliding connection seat (196), the movable rack (194) and the sliding connection seat (196) are located inside the sliding groove rail (195) and are slidably connected, the bottom of the sliding connection seat (196) is fastenedly connected to a rotating motor box (197), the bottom output end of the rotating motor box (197) is connected to an adjustable double-axis arm frame (198), the bottom end of the adjustable double-axis arm frame (198) is installed with a cross-sectional spray mist end (199), the side end of the cross-sectional spray mist end (199) is connected to a liquid nitrogen guide valve pipe (1990), and the side end of the liquid nitrogen guide valve pipe (1990) is connected to a liquid nitrogen pump box (20); A driving motor (22) is mounted on the inner side of the detection frame (1); the output end of the driving motor (22) is connected to a chain gear structure (23); a hollow rotating rod (10) is mounted on the center end of the large gear of the chain gear structure (23); and a tire (9) is sleeved on the outer circumference of the hollow rotating rod (10); The side ends of the tire (9) are connected via an air duct inside the hollow rotating rod (10); the left and right ends of the hollow rotating rod (10) are fastened to the two side surfaces of the detection frame (1) via bearings; the bottom of the tire (9) is in contact with the top wall surface of the working measuring plate (21); and an array-type platinum resistance temperature sensor is installed inside the tire (9); A small compressor (3), a high-efficiency evaporator (4) and a high-efficiency cooler (5) are respectively mounted inside the detection frame (1), and the small compressor (3), the high-efficiency evaporator (4) and the high-efficiency cooler (5) are sequentially connected; The output end of the high-efficiency cooler (5) is connected to a condensation valve pipe (6), and the side end of the condensation valve pipe (6) and the air guide pipe are connected via a quick connector.

2. The semi-steel radial dual-guide all-season tire low-temperature tester according to claim 1 is characterized in that: An inert gas guide tank (11) is mounted on the top of the side end of the detection frame (1), the side end of the inert gas guide tank (11) is connected to a gas guide pump tube (12), and the side end of the gas guide pump tube (12) passes through and is connected to the detection box (2).

3. The semi-steel radial dual-guide all-season tire low-temperature tester according to claim 2 is characterized in that: The detection box (2) is located outside the tire (9) to form a protection, and the bottom of the detection box (2) is located on both sides of the working measuring plate (21), and a guide fan (8) is installed on the top side of the detection box (2). A high-precision temperature sensor is installed inside the detection box (2), and the high-precision temperature sensor and the array platinum resistance temperature sensor form a wireless signal series connection.

4. The semi-steel radial dual-guide all-season tire low-temperature tester according to claim 3 is characterized in that: The side wall surface of the detection box body (2) is connected to an extraction pump (14), and the bottom end of the extraction pump (14) is connected to a storage box (15) through a pipeline.

5. The semi-steel radial dual-guide all-season tire low-temperature tester according to claim 4, characterized in that: The surface of the detection box (2) is connected to a delivery pipeline (24), the top of the delivery pipeline (24) is connected to a sand and gravel classification and delivery box (13), and the sand and gravel classification and delivery box (13) is mounted on the surface of the detection frame (1).

6. A test method for a semi-steel radial dual-guide all-season tire low-temperature tester, characterized in that: The semi-steel radial dual-guide all-season tire low-temperature tester according to claim 5 is used, comprising the following steps: S1. First, a semi-steel radial dual-guided all-season tire to be tested is placed outside the hollow rotating rod (10). Then, with the cooperation of the driving motor (22) and the chain gear structure (23), the tire (9) is driven to rotate inside the testing box (2) and come into contact with the top wall surface of the working testing plate (21); S2, then, the small compressor (3), the high-efficiency evaporator (4) and the high-efficiency cooler (5) are started in sequence, and the condensed fluid is transported to the tire (9) through the connection between the condensation valve pipe (6) and the air guide pipe. Then, the array platinum resistance temperature sensor and the high-precision temperature sensor are connected in series to form a consistent temperature detection for the inside and outside of the tire (9). The outer carcass of the tire (9) is thick and has poor conductivity, and then the liquid nitrogen uniform temperature control component (19) is started to control the liquid nitrogen spraying to the outside of the tire (9) rotating at a uniform speed to keep consistent with the internal low temperature environment; S3, then, the inert gas in the inert gas guide tank (11) is guided into the interior of the detection box (2) through the gas guide pump tube (12), and the inert gas is guided and dispersed into the detection box (2) under the action of the guide fan (8); S4. Afterwards, the conveying pipeline (24) is used to convey the materials in the sand and gravel classification conveying box (13) to the working measuring plate (21) according to the needs, so as to simulate and test the use degree of the tire (9) in different terrains and in a low temperature environment. Secondly, the different materials are extracted and conveyed to the storage box (15) by the extraction pump (14).

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