Material high-temperature and low-temperature performance testing equipment based on cyclic rapid temperature change and control method

Abstract

The invention discloses a material high-temperature and low-temperature performance test device based on circulating rapid temperature change and a control method, the material high-temperature and low-temperature performance test device comprises a cabinet body and a cabinet door, the front portion of the cabinet body is provided with the cabinet door capable of being sealed and locked, the upper portion of the cabinet body is provided with a heating cavity penetrating forwards, and the bottom of the cabinet body is provided with a refrigeration cavity penetrating forwards; a main through groove penetrating up and down is formed in the middle of the cabinet body, the middle of the main through groove is in the shape of a cylinder penetrating left and right, the middle of the main through groove is coaxially, hermetically and rotationally connected with a horizontal supporting roller, a containing groove penetrates through one radial side of the supporting roller, and clamping mechanisms are installed on the left portion and the right portion of the supporting roller respectively. The electric rotation driving mechanism is controlled to enable the supporting roller to rotate, so that the containing groove is vertically upwards communicated with the heating cavity, then an object to be tested is placed in the containing groove, and the clamping structure is used for clamping the object to be tested left and right; and then the electric heating device and the electric refrigerating device are controlled to work to heat and refrigerate the heating cavity and the refrigerating cavity respectively.

Description

Technical Field

[0001] The present invention relates to the field of temperature testing technology, and in particular to a material high-temperature and low-temperature performance testing device and a control method based on cyclic rapid temperature change. Background Art

[0002] In some special fields, such as aerospace, chemical industry, smelting and other technical fields, the temperature difference of the use environment of some devices or structures is very large, which requires these devices or structures to have strong temperature difference adaptability. In order to ensure that these devices or structures can work normally in the actual use process without affecting the normal progress of other work, it is necessary to use corresponding temperature difference test equipment for performance testing before formal use. The existing performance testing equipment has a slow response speed during testing: one is that the test temperature changes slowly, and it is difficult to test the performance of objects under the condition of rapid temperature changes; the other is that the speed of isolating the flame is slow. When the tested object catches fire, it is difficult to isolate the flame in time, and it is easy to cause large-scale damage to the devices in the test equipment due to the fire. The shortcomings of the existing technology are highlighted. Summary of the invention

[0003] The purpose of the present invention is to provide a material high-temperature and low-temperature performance testing device and a control method based on cyclic rapid temperature change, so as to solve the technical problem of slow response speed of existing testing equipment.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions: A material high-temperature and low-temperature performance testing device based on cyclic rapid temperature change, comprising a cabinet body and a cabinet door, wherein a cabinet door capable of being sealed and locked is installed at the front of the cabinet body, a heating cavity penetrating forward is provided at the upper part of the cabinet body, and a refrigeration cavity penetrating forward is provided at the bottom, a main through groove penetrating upward and downward is provided at the middle part of the cabinet body, the middle part of the main through groove is cylindrical penetrating left and right, a horizontal support roller is coaxially and sealedly connected to the middle part of the main through groove for rotation, a receiving groove is penetrated at one radial side of the support roller, and a clamping mechanism is installed at each of the left and right parts, an electric heating device and a smoke sensor are installed in the heating cavity, and the refrigeration An electric refrigeration device is installed in the cavity, temperature sensors are fixed in the heating cavity and the refrigeration cavity respectively, an electric rotation drive mechanism is installed together with the support roller and the cabinet, and when the support roller rotates to a certain position in the middle of the main through groove, the accommodating groove can be connected with the upper or lower part of the main through groove, and when the support roller rotates to a certain position in the middle of the main through groove, the accommodating groove can be sealed by the inner wall of the main through groove. A controller is fixed on the cabinet, and the electric heating device, smoke sensor, electric refrigeration device, temperature sensor, electric rotation drive mechanism and controller are electrically connected, and the controller is externally connected to a power supply.

[0005] On the basis of the above technical solution, the cabinet is fixed with an electric-driven three-way valve and a vacuum pump. The three ports of the electric-driven three-way valve are respectively connected to a No. 1 connecting pipe, and each of the No. 1 connecting pipes is respectively connected to the middle of the main through groove, the suction port of the vacuum pump and the outside world. A flame-retardant filter element is sealed and fixed in the No. 1 connecting pipe connected to the main through groove. When the accommodating groove faces the inner wall of the main through groove, it can also be connected to the No. 1 connecting pipe at the same time. The electric-driven three-way valve and the vacuum pump are electrically connected to the controller.

[0006] On the basis of the above technical solution, the electric refrigeration device is fixed at the lower rear part of the cabinet, the refrigeration end of the electric refrigeration device is located in the refrigeration cavity, and the heat dissipation end is not located in the refrigeration cavity, the heat dissipation end of the electric refrigeration device is installed with a heat dissipation mechanism, the support roller is a hollow structure, and the radial side of the left and right parts of the support roller are respectively provided with a through hole in the same direction as the accommodating groove, and the through hole is connected with the inner cavity of the support roller, and a cooling pipe No. 1 is fixed at the lower rear part of the cabinet, and the bottom of the cooling pipe No. 1 is horizontally reciprocating and zigzag, and the left and right parts are upward The front part of the cooling pipe No. 1 is fixedly connected to the pump No. 1, the suction port and the discharge port of the pump No. 1 are respectively connected to the cooling pipe No. 1, and are electrically connected to the controller, the penetration parts of the left and right parts of the cooling pipe No. 1 extend to the main through-slot and are connected, when the supporting roller rotates in the main through-slot, the through-hole is sealed by the inner wall of the main through-slot or is connected to the left and right parts of the cooling pipe No. 1, the inner cavities of the cooling pipe No. 1 and the supporting roller both store cooling liquid, and when the through-hole is connected to the cooling pipe No. 1, the connecting pipe No. 1 is connected to the accommodating groove.

[0007] On the basis of the above technical scheme, a rear through groove is opened at the rear of the cabinet, the upper part of the rear through groove is connected to the heating chamber, and the bottom is horizontally cylindrical, the bottom of the rear through groove is coaxially sealed and rotatably connected with a horizontal rear support cylinder, the rear support cylinder is sealed and closed in the axial direction, and the left and right parts are radially penetrated by a rear air inlet and a rear air outlet, the two rear air inlets are respectively fixed with a horizontal rear support frame, the two rear support frames are respectively rotatably connected with a vertical rear output shaft, the two rear output shafts are respectively coaxially fixed with a rear turbofan, the right end of the rear support cylinder is fixed with a horizontal rear servo motor, the rotating shaft of the rear servo motor is coaxially fixed There is a rear input shaft, and it is electrically connected to the controller. The rear output shaft is connected to the two rear input shafts through the meshing of bevel gears. Four horizontal rear vents are opened at the rear end of the cabinet. The rear support tube is driven to rotate by an electric rotary drive mechanism. When the rear support tube rotates to a certain angle, the rear air inlet and the rear air outlet can be connected to the upper part of the rear through groove or the rear vent. When the rear air inlet and the rear air outlet are connected to the upper part of the rear through groove, the rear vent is sealed and closed by the outer wall of the rear support tube. When the rear air inlet and the rear air outlet are connected to the rear vent, the upper part of the rear through groove is sealed and closed by the outer wall of the rear support tube.

[0008] On the basis of the above technical scheme, a gap groove is opened at the rear lower part of the rear support tube, the cooling end of the electric heating device is at the bottom and the heat dissipation end is at the top, and the heat dissipation mechanism includes a No. 2 cooling tube, a No. 2 pump, a heat dissipation tube, and heat dissipation fins. The No. 2 cooling tube is fixed inside the cabinet and is located above the heat dissipation end of the electric heating device. The bottom of the No. 2 cooling tube is horizontally reciprocatingly bent, and the left and right parts are both vertical. The No. 2 cooling tube is fixedly connected to the No. 2 pump, and the suction port and the discharge port of the No. 2 pump are respectively connected to the No. 2 cooling tube, and are electrically connected to the controller. The upper part of the No. 2 cooling tube is fixedly connected to a horizontal heat dissipation tube, and rows of heat dissipation fins are fixed on the outer wall of the heat dissipation tube. The heat dissipation tube and the heat dissipation fins are located in the rear support tube, and the upper part of the No. 2 cooling tube is gap-plugged with the gap groove, and coolant is stored therein.

[0009] On the basis of the above technical scheme, a front through slot is opened at the front of the cabinet, the upper part of the front through slot is in the form of four vertical penetrations connected with the heating chamber, and the middle and upper part is in the form of a horizontal cylinder, the middle and upper part of the front through slot is coaxially sealed and rotatably connected with a horizontal front support cylinder, and the bottom is in the form of four vertical penetrations connected with the refrigeration chamber, the front support cylinder is sealed and closed in the axial direction, and the left and right parts are penetrated with a front air inlet and a front air outlet on both radial sides, the front air inlet and the front air outlet correspond to the four penetrations at the upper and lower parts of the front through slot, the two front air inlets are respectively fixed with horizontal front support frames, the two front support frames are respectively rotatably connected with vertical front output shafts, the two front output shafts are respectively coaxially fixed with front turbofans, the right end of the front support cylinder is fixed with a front servo motor, and a flame-retardant heat-insulating layer is fitted and fixed to the inner wall, the rotating shaft of the front servo motor is coaxially fixed There is a front input shaft, which is electrically connected to the controller, and the front output shaft is transmission-connected to the two front input shafts through the meshing of bevel gears, and four front vents are opened at the front of the cabinet, and the front air inlet and the front air outlet correspond to the front vents front and back, and the front vents are bent, and the upper part is connected with the bottom of the heating chamber, and the bottom of the front vents is connected with the front of the upper and middle part of the front through slot, and the front support cylinder is driven to rotate by the electric rotary drive mechanism, and when the front support cylinder is rotated to a certain angle, the front air inlet and the front air outlet can be connected with the upper and lower parts of the front through slot at the same time or connected with the front vents, and when the front air inlet and the front air outlet are connected with the upper and lower parts of the front through slot at the same time, the front vent is sealed and closed by the outer wall of the front support cylinder, and when the front air inlet and the front air outlet are connected with the front vent, the upper and lower parts of the front through slot are sealed and closed by the outer wall of the front support cylinder.

[0010] On the basis of the above technical scheme, the electric rotary drive mechanism includes a No. 4 support cylinder, an outer gear ring, a No. 1 electric push rod, a No. 2 electric push rod, a No. 3 electric push rod, and a rack. The front support cylinder, the support roller, and the rear support cylinder are respectively coaxially fixed with the No. 4 support cylinder, and the No. 4 support cylinder is respectively coaxially fixed with the outer gear ring. The cabinet body is fixed with the No. 1 electric push rod, the No. 2 electric push rod, and the No. 3 electric push rod in sequence from front to back. The push rod of the No. 1 electric push rod, the push rod of the No. 2 electric push rod, and the push rod of the No. 3 electric push rod are respectively fixed with racks in sequence, and each of the racks is respectively meshed with each outer gear ring, and the No. 1 electric push rod, the No. 2 electric push rod, and the No. 3 electric push rod are respectively electrically connected to the controller.

[0011] On the basis of the above technical scheme, the clamping mechanism includes a No. 4 electric push rod and a No. 4 clamping plate. The No. 4 electric push rods parallel to the axial direction are respectively fixed at both ends of the support roller. The push rods of the two No. 4 electric push rods pass through the left and right parts of the support roller, and vertical No. 4 clamping plates are respectively fixed at the ends of the push rods. The No. 4 electric push rod is electrically connected to the controller, and the two No. 4 clamping plates are respectively located in the accommodating grooves.

[0012] On the basis of the above technical scheme, a horizontal and upwardly convex support platform is fixed at the bottom end of the accommodating groove, two vertical No. 5 electric push rods are fixed at the top of the cabinet, and two vertical No. 6 electric push rods are fixed at the bottom end. The push rods of the two No. 5 electric push rods pass through the upper part of the cabinet, and a horizontal support base is fixed at the bottom. The No. 5 electric push rod and the No. 6 electric push rod are electrically connected to the controller, and the left and right parts of the support base are each slidably connected with a clamping claw, and the upper part is rotatably connected with a bidirectional screw rod along the left and right directions, and the left part of the support base is rotatably connected with a vertical hollow shaft, and the hollow shaft and the bidirectional screw rod are connected by a bevel gear. Transmission connection is carried out, the upper parts of the two clamping jaws are respectively threadedly connected to the left and right parts of the two-way screw rod, and the bottom parts are respectively connected to the vertical push plates for left and right sliding movement, and a compression spring is fixed between the two push plates and the push plates for sliding connection therewith. Under the elastic repulsive force of the compression spring, the two push plates have a tendency to move away from the clamping jaws to which they are slidably connected and can extend out from the clamping jaws. A vertical upper servo motor is fixed on the top of the cabinet, and a flower axis is coaxially fixed to the rotating shaft of the upper servo motor. The flower axis is coaxially slidably connected with the hollow shaft, and the push rods of the two No. 6 electric push rods pass through the lower part of the cabinet and are fixed with a horizontal support plate.

[0013] Based on the above technical solution, a method for controlling a material high-temperature and low-temperature performance test device based on cyclic rapid temperature change is provided, characterized in that the method of use comprises the following steps: Step 101, control the electric rotary drive mechanism to rotate the support roller so that the receiving slot is vertically connected to the heating chamber, then put the object to be tested into the receiving slot, and use the clamping mechanism to clamp the test object on the left and right, and then control the electric heating device and the electric cooling device to work to heat and cool the heating chamber and the cooling chamber respectively.

[0014] Step 102: When a rapid temperature change test is required, the electric rotary drive mechanism is controlled to rotate the support roller, so that the receiving tank is connected to the heating chamber or the cooling chamber, so that the tested object can be quickly heated or cooled.

[0015] Step 103, when the test object burns due to high temperature, the smoke sensor sounds an alarm, and the controller controls the electric rotary drive mechanism to rotate the support roller, so that the receiving groove is sealed by the inner wall of the main through groove, thereby quickly isolating the flame and oxygen to extinguish the fire.

[0016] Compared with the prior art, the present invention has the following advantages: the present invention controls the electric rotary drive mechanism to rotate the support roller so that the receiving groove is vertically connected to the heating chamber, and then the object to be tested is placed in the receiving groove, and the clamping structure is used to clamp the test object on the left and right, and then the electric heating device and the electric refrigeration device are controlled to work to heat and cool the heating chamber and the refrigeration chamber respectively.

[0017] When a rapid temperature change test is required, the electric rotary drive mechanism is controlled to rotate the support roller, so that the receiving tank can be connected to the heating chamber or the cooling chamber, so that the object to be tested can be quickly heated or cooled.

[0018] When the test object burns due to high temperature, the smoke sensor sounds an alarm and controls the electric rotary drive mechanism through the controller to rotate the support roller, so that the receiving groove is sealed by the inner wall of the main through groove, thereby quickly isolating the flame and oxygen to extinguish the fire and reduce losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the axonometric structure of the present invention.

[0020] Figure 2 It is a right sectional structural schematic diagram of the present invention.

[0021] Figure 3 It is a schematic diagram of the axonometric structure of the front support tube of the present invention.

[0022] Figure 4 It is a schematic diagram of the cooperation between the support roller and the first cooling pipe of the present invention.

[0023] Figure 5 It is a schematic diagram of the bottom structure of the rear support tube of the present invention.

[0024] Figure 6 It is a front view schematic diagram of the cabinet of the present invention.

[0025] In the figure: 1, cabinet, 2, cabinet door, 3, heating chamber, 4, cooling chamber, 5, main through slot, 6, support roller, 7, receiving slot, 9, electric heating device, 10, smoke sensor, 11, electric cooling device, 12, temperature sensor, 14, controller, 15, three-way valve, 16, vacuum pump, 17, No. 1 connecting pipe, 18, flame retardant filter element, 20, through hole, 21, No. 1 cooling pipe, 22, No. 1 pump, 23, rear through slot, 24, rear support cylinder, 25, rear air inlet, 26, rear air outlet, 27, rear support frame, 28, rear output shaft, 29, rear turbofan, 30, rear servo motor, 31, rear input shaft, 32, rear vent, 33, gap slot, 34, No. 2 cooling pipe, 35, No. 2 pump, 36, heat dissipation pipe, 37, heat dissipation Thermal fin, 38, front through slot, 39, front support cylinder, 40, front air inlet, 41, front air outlet, 42, front support frame, 43, front output shaft, 44, front turbofan, 45, front servo motor, 391, flame retardant insulation layer, 46, front input shaft, 47, front air outlet, 48, No. 4 support cylinder, 49, outer gear ring, 50, No. 1 electric push rod, 51, No. 2 electric push rod, 52, No. 3 electric push rod, 491, rack, 53, No. 4 electric push rod, 54, No. 4 splint, 55, support table, 56, No. 5 electric push rod, 57, No. 6 electric push rod, 58, support seat, 59, clamping claw, 60, bidirectional screw, 61, hollow shaft, 63, push plate, 64, compression spring, 65, upper servo motor, 66, flower shaft, 67, support plate. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1-Figure 6As shown, a high-temperature and low-temperature performance testing device for materials based on cyclic rapid temperature change includes a cabinet 1 and a cabinet door 2. The cabinet 1 is provided with a cabinet door 2 that can be sealed and locked at the front. The cabinet 1 is provided with a heating chamber 3 that penetrates forward on the upper part, and a refrigeration chamber 4 that penetrates forward on the bottom. The cabinet 1 is provided with a main through groove 5 that penetrates from top to bottom in the middle part. The middle part of the main through groove 5 is cylindrical and penetrates from left to right. A horizontal support roller 6 is coaxially and sealedly connected to the middle part of the main through groove 5. A receiving groove 7 is penetrated on one radial side of the support roller 6, and a clamping mechanism is installed on the left and right parts respectively. An electric heating device 9 and a smoke sensor 10 are installed in the heating chamber 3, and a cooling device 10 is installed in the refrigeration chamber 4. There is an electric refrigeration device 11, and temperature sensors 12 are respectively fixed in the heating chamber 3 and the refrigeration chamber 4. The support roller 6 and the cabinet 1 are jointly equipped with an electric rotation drive mechanism. When the support roller 6 rotates to a certain position in the middle of the main through groove 5, the accommodating groove 7 can be connected with the upper or lower part of the main through groove 5. When the support roller 6 rotates to a certain position in the middle of the main through groove 5, the accommodating groove 7 can be sealed by the inner wall of the main through groove 5. A controller 14 is fixed to the cabinet 1, and the electric heating device 9, the smoke sensor 10, the electric refrigeration device 11, the temperature sensor 12, the electric rotation drive mechanism and the controller 14 are electrically connected, and the controller 14 is externally connected to a power supply.

[0028] The cabinet 1 is fixed with an electric three-way valve 15 and a vacuum pump 16. The three ports of the electric three-way valve 15 are respectively connected to a No. 1 connecting pipe 17. Each of the No. 1 connecting pipes 17 is respectively connected to the middle of the main through groove 5, the suction port of the vacuum pump 16 and the outside. A flame-retardant filter element 18 is sealed and fixed in the No. 1 connecting pipe 17 connected to the main through groove 5. The accommodating groove 7 can also be connected to the No. 1 connecting pipe 17 when facing the inner wall of the main through groove 5. The electric three-way valve 15 and the vacuum pump 16 are electrically connected to the controller 14.

[0029] Furthermore, when the receiving tank 7 is connected to the heating chamber 3 and the object generates flames due to the heat, the smoke sensor 10 senses the smoke and controls the electric rotary drive mechanism through the controller 14 to rotate the support roller 6 clockwise (viewed from the right angle) until the receiving tank 7 faces the inner wall of the main through groove 5 and is connected to the No. 1 connecting pipe 17, and then the three-way valve 15 is controlled to operate, so that the receiving tank 7 is connected to the vacuum pump 16, and then the vacuum pump 16 is controlled to evacuate, thereby realizing rapid isolation of oxygen and fire extinguishing, and then, cold air can be introduced into the No. 1 connecting pipe 17 connected to the outside world, and the three-way valve 15 is controlled to operate, so that the cold air enters the receiving tank 7 to cool down the tested object and extinguish the fire.

[0030] The electric refrigeration device 11 is fixed to the lower rear part of the cabinet 1, the refrigeration end of the electric refrigeration device 11 is located in the refrigeration cavity 4, and the heat dissipation end is not located in the refrigeration cavity 4, the heat dissipation end of the electric refrigeration device 11 is installed with a heat dissipation mechanism, the support roller 6 is a hollow structure, and the radial side of the left and right parts of the support roller 6 are respectively provided with a through hole 20 in the same direction as the receiving groove 7, and the through hole 20 is connected with the inner cavity of the support roller 6, and the lower rear part of the cabinet 1 is fixed with a No. 1 cooling pipe 21, the bottom of the No. 1 cooling pipe 21 is horizontally reciprocating and zigzag, and the left and right parts are both bent upward, and the No. 1 cooling pipe 21 is fixed to the lower rear part of the cabinet 1, and the bottom of the No. 1 cooling pipe 21 is horizontally reciprocating and zigzag, and the left and right parts are ... left and right parts are bent upward, and the left and right parts are bent upward, and the left and right parts are bent upward, and the left and right parts are bent upward, and the left and right parts are bent upward, and the left and right parts are bent upward, and the left and right parts are bent upward, The front part of the cooling pipe 21 is fixedly connected to a pump machine 22, the suction port and the discharge port of the pump machine 22 are respectively connected to the cooling pipe 21, and are electrically connected to the controller 14, the penetration parts of the left and right parts of the cooling pipe 21 extend to the main through groove 5 and are connected, when the support roller 6 rotates in the main through groove 5, the through hole 20 is sealed and blocked by the inner wall of the main through groove 5 or is connected to the left and right parts of the cooling pipe 21, the cooling pipe 21 and the inner cavity of the support roller 6 are both stored with coolant, and when the through hole 20 is connected to the cooling pipe 21, the connecting pipe 17 is connected to the accommodating groove 7.

[0031] Furthermore, during the test, the electric refrigeration device 11 can cool the bottom of the No. 1 cooling tube 21. When the tested object is burning and the No. 1 connecting tube 17 is connected to the receiving tank 7, the through hole 20 is connected to the No. 1 cooling tube 21, and then the No. 1 pump 22 is controlled to rotate, so that the coolant flows in the inner cavity of the support roller 6 and the No. 1 connecting tube 17, thereby cooling the support roller 6, and then indirectly cooling the object in the receiving tank 7, thereby achieving cooling and fire extinguishing.

[0032] A rear through slot 23 is provided at the rear of the cabinet 1, the upper portion of the rear through slot 23 is connected to the heating chamber 3, and the bottom is in a horizontal cylindrical shape. The bottom of the rear through slot 23 is coaxially and sealedly rotatably connected to a horizontal rear support cylinder 24, the rear support cylinder 24 is sealed and closed in the axial direction, and the left and right parts are radially penetrated by a rear air inlet 25 and a rear air outlet 26, the two rear air inlets 25 are respectively fixed with a horizontal rear support frame 27, the two rear support frames 27 are respectively rotatably connected with a vertical rear output shaft 28, the two rear output shafts 28 are respectively coaxially fixed with a rear turbofan 29, the right end of the rear support cylinder 24 is fixed with a horizontal rear servo motor 30, the rotating shaft of the rear servo motor 30 is coaxially fixed with a rear input shaft 31, and The controller 14 is electrically connected, and the rear output shaft 28 is transmission-connected to the two rear input shafts 31 through the meshing of bevel gears. Four horizontal rear vents 32 are provided at the rear end of the cabinet 1. The rear support tube 24 is driven to rotate by an electric rotary drive mechanism. When the rear support tube 24 rotates to a certain angle, the rear air inlet 25 and the rear air outlet 26 can be connected to the upper part of the rear through groove 23 or the rear vents 32. When the rear air inlet 25 and the rear air outlet 26 are connected to the upper part of the rear through groove 23, the rear vents 32 are sealed and closed by the outer wall of the rear support tube 24. When the rear air inlet 25 and the rear air outlet 26 are connected to the rear vents 32, the upper part of the rear through groove 23 is sealed and closed by the outer wall of the rear support tube 24.

[0033] Furthermore, when conducting the test, the rear support cylinder 24 is driven to rotate by manipulating the electric rotary drive mechanism, so that the rear air inlet 25 and the rear air outlet 26 are connected to the upper part of the rear through slot 23, and then the rear servo motor 30 is controlled to rotate, thereby driving the rear turbofan 29 to rotate through the rear output shaft 28 and the rear input shaft 31, so that a circulating airflow is formed between the heating chamber 3 and the rear support cylinder 24 through the rear air inlet 25, the rear air outlet 26 and the rear through slot 23, and then the air flow is realized, so that the temperature in the heating chamber 3 is relatively uniform when the electric heating device 9 is heating, so that the test result is more accurate.

[0034] A gap groove 33 is opened at the rear lower part of the rear support tube 24, the cooling end of the electric heating device 9 is at the bottom and the heat dissipation end is at the top, and the heat dissipation mechanism includes a No. 2 cooling tube 34, a No. 2 pump 35, a heat dissipation tube 36, and a heat dissipation fin 37. The No. 2 cooling tube 34 is fixed inside the cabinet 1 and is located above the heat dissipation end of the electric heating device 9. The bottom of the No. 2 cooling tube 34 is horizontally reciprocatingly bent, and the left and right parts are both vertical. The No. 2 cooling tube 34 is fixedly connected to the No. 2 pump 35, and the suction port and the discharge port of the No. 2 pump 35 are respectively connected to the No. 2 cooling tube 34, and are electrically connected to the controller 14. The upper part of the No. 2 cooling tube 34 is fixedly connected to a horizontal heat dissipation tube 36, and the outer wall of the heat dissipation tube 36 is fixed with rows of heat dissipation fins 37. The heat dissipation tube 36 and the heat dissipation fins 37 are located in the rear support tube 24. The upper part of the No. 2 cooling tube 34 is gap-plugged with the gap groove 33, and coolant is stored therein.

[0035] Furthermore, at the beginning of the test, the electric refrigeration device 11 is controlled to work first, so that the refrigeration chamber 4 gradually cools down, while the heat dissipation end of the electric refrigeration device 11 gradually heats up. At this time, the electric rotary drive mechanism is controlled to operate so that the rear air inlet 25 and the rear air outlet 26 are connected to the upper part of the rear through groove 23, and then the rear servo motor 30 and the second pump 35 are controlled to rotate, so that the coolant can flow in the second cooling pipe 34 and the heat dissipation pipe 36, thereby absorbing the heat generated by the electric refrigeration device 11 and dissipating it into the heating chamber 3, thereby achieving the control of the temperature. The heat chamber 3 is initially heated, and at the same time, the heat dissipation end of the electric refrigeration device 11 is cooled to achieve the purpose of energy saving. When a certain period of time is reached, the cooling effect on the heat dissipation end of the electric refrigeration device 11 is insufficient, and then the electric rotary drive mechanism is controlled to operate so that the rear air inlet 25 and the rear air outlet 26 are connected to the rear vent 32, thereby forming air flow between the outside and the rear support tube 24 through the rear air inlet 25, the rear air outlet 26 and the rear vent 32, thereby achieving cooling of the heat dissipation pipe 36 and indirectly cooling the electric heating device 9.

[0036] The cabinet 1 has a front through slot 38 at the front, and the upper part of the front through slot 38 is in the form of four vertical through holes connected to the heating chamber 3, and the middle and upper part is in the form of a horizontal cylindrical shape. The middle and upper part of the front through slot 38 is coaxially sealed and rotatably connected to a horizontal front support cylinder 39, and the bottom is in the form of four vertical through holes connected to the refrigeration chamber 4. The front support cylinder 39 is sealed and closed in the axial direction, and the left and right parts are penetrated by front air inlets 40 and front air outlets 41 on both radial sides. The front air inlets 40 and the front air outlets 41 corresponds to the four penetrations at the upper and lower parts of the front through slot 38, and the two front air inlets 40 are respectively fixed with horizontal front support frames 42, and the two front support frames 42 are respectively rotatably connected with vertical front output shafts 43, and the two front output shafts 43 are respectively coaxially fixed with front turbofans 44, and the right end of the front support cylinder 39 is fixed with a front servo motor 45, and the inner wall is fixed with a flame retardant heat insulation layer 391, and the rotating shaft of the front servo motor 45 is coaxially fixed with a front input shaft 46, and is connected with the control The cabinet 1 is electrically connected to the front output shaft 43 and the two front input shafts 46 through the meshing of bevel gears. The cabinet 1 has four front vents 47 at the front. The front air inlet 40 and the front air outlet 41 correspond to the front vents 47 in front and back. The front vents 47 are bent, and the upper part is connected to the bottom of the heating chamber 3. The bottom of the front vents 47 is connected to the front of the upper middle part of the front through slot 38. The front support cylinder 39 is driven by the electric rotation drive mechanism to rotate. When the front support tube 39 is rotated to a certain angle, the front air inlet 40 and the front air outlet 41 can be connected to the upper and lower parts of the front through slot 38 or to the front vent 47 at the same time. When the front air inlet 40 and the front air outlet 41 are connected to the upper and lower parts of the front through slot 38 at the same time, the front vent 47 is sealed and closed by the outer wall of the front support tube 39. When the front air inlet 40 and the front air outlet 41 are connected to the front vent 47, the upper and lower parts of the front through slot 38 are sealed and closed by the outer wall of the front support tube 39.

[0037] Furthermore, during the test, the front support cylinder 39 is rotated by manipulating the electric rotary drive mechanism until the front air inlet 40 and the front air outlet 41 are respectively connected to the front vent 47, and then the front servo motor 45 is controlled to rotate, so that the front turbofan 44 can be rotated through the front input shaft 46 and the front output shaft 43, thereby forming a circulating air flow in the heating chamber 3 and the front support cylinder 39 through the front air inlet 40, the front air outlet 41 and the front vent 47, thereby improving the temperature balance effect in the heating chamber. When the test is completed, when it is necessary to accelerate the heating chamber 3 and the cooling chamber 4 to return to the ambient temperature, the front support cylinder 39 is rotated by manipulating the electric rotary drive mechanism until the front air inlet 40 and the front air outlet 41 are connected to the upper and lower parts of the front through groove 38, and the front servo motor 45 is controlled to rotate, thereby forming a circulating air flow between the heating chamber 3 and the cooling chamber 4, thereby accelerating the circulation of hot and cold air, and making the temperature return to the ambient temperature faster.

[0038] The electric rotary drive mechanism includes a No. 4 support cylinder 48, an outer gear ring 49, a No. 1 electric push rod 50, a No. 2 electric push rod 51, a No. 3 electric push rod 52, and a rack 491. The front support cylinder 39, the support roller 6 and the rear support cylinder 24 are coaxially fixed with the No. 4 support cylinder 48, and the No. 4 support cylinder 48 is coaxially fixed with the outer gear ring 49. The cabinet 1 is fixed with a No. 1 electric push rod 50, a No. 2 electric push rod 51 and a No. 3 electric push rod 52 from front to back in sequence. The push rods of the No. 1 electric push rod 50, the No. 2 electric push rod 51 and the No. 3 electric push rod 52 are fixed with racks 491 in sequence, and each of the racks 491 is meshed with each outer gear ring 49, and the No. 1 electric push rod 50, the No. 2 electric push rod 51 and the No. 3 electric push rod 52 are electrically connected to the controller 14, respectively.

[0039] By controlling the telescopic push rods No. 1, 51 and 52, and utilizing the meshing of the rack 491 and the outer gear ring 49, the front support cylinder 39, the support roller 6 and the rear support cylinder 24 can be rotated forward and backward.

[0040] The clamping mechanism includes a No. 4 electric push rod 53 and a No. 4 clamping plate 54. The No. 4 electric push rods 53 parallel to the axial direction are respectively fixed at both ends of the support roller 6. The push rods of the two No. 4 electric push rods 53 pass through the left and right parts of the support roller 6, and the ends of the push rods are respectively fixed with vertical No. 4 clamping plates 54. The No. 4 electric push rod 53 is electrically connected to the controller 14, and the two No. 4 clamping plates 54 are respectively located in the accommodating grooves 7.

[0041] When the object to be tested is placed in the receiving groove 7, the No. 4 electric push rod 53 is controlled to be extended and retracted, so that the No. 4 clamping plates 54 can be moved closer to and away from each other, thereby clamping and releasing the object to be tested. After the object to be tested is clamped, it can be prevented from falling out of the receiving groove 7 when the receiving groove 7 is connected to the bottom of the main through groove 5.

[0042] A horizontal and upwardly convex support platform 55 is fixed to the bottom end of the accommodating groove 7, two vertical No. 5 electric push rods 56 are fixed to the top of the cabinet 1, and two vertical No. 6 electric push rods 57 are fixed to the bottom end, the push rods of the two No. 5 electric push rods 56 pass through the upper part of the cabinet 1, and a horizontal support seat 58 is fixed to the bottom end, the No. 5 electric push rod 56 and the No. 6 electric push rod 57 are electrically connected to the controller 14, the left and right parts of the support seat 58 are respectively connected with a clamping claw 59 for sliding left and right, and the upper part is connected with a bidirectional screw rod 60 for rotation along the left and right directions, the left part of the support seat 58 is connected with a vertical hollow shaft 61 for rotation, and the hollow shaft 61 is connected with the bidirectional screw rod 60 through a bevel gear for transmission. The upper parts of the two clamping jaws 59 are respectively threadedly connected to the left and right parts of the two-way screw rod 60, and the bottoms are respectively slidably connected to the left and right with vertical push plates 63. A compression spring 64 is fixed between the two push plates 63 and the push plates 63 to which they are slidably connected. Under the elastic repulsive force of the compression spring 64, the two push plates 63 have a tendency to move away from the clamping jaws 59 to which they are slidably connected and can extend out from the clamping jaws 59. A vertical upper servo motor 65 is fixed to the top of the cabinet 1. A flower shaft 66 is coaxially fixed to the rotating shaft of the upper servo motor 65. The flower shaft 66 is coaxially slidably connected with the hollow shaft 61. The push rods of the two No. 6 electric push rods 57 pass through the lower part of the cabinet 1 and are commonly fixed with a horizontal support plate 67.

[0043] Furthermore, before the test, the upper servo motor 65 is controlled to rotate forward, so that the two clamping jaws 59 are moved away from each other through the flower shaft 66, the hollow shaft 61 and the bidirectional screw 60, and then the tested object is placed between the two push plates 63, and then the upper servo motor 65 is controlled to reverse, so that the two clamping jaws 59 are brought close to each other, and then the push plate 63 is used to clamp the object, and the object is lifted by the clamping jaws 59. At this time, the tested object is located in the heating chamber 3 and can be well surrounded by hot air and heated, thereby improving the uniform heating effect. When a low-temperature test is required, the electric rotary drive mechanism is controlled to connect the accommodating groove 7 with the upper part of the main through groove 5, and then the No. 4 electric push rod 53 is controlled to retract the push rod, so that the two No. 4 clamping plates 54 are moved away from each other, and then the No. 5 electric push rod 56 is controlled to extend. A certain distance is reached, and then the upper servo motor 65 is controlled to rotate forward, so that the two clamping claws 59 can move away from each other and finally separate from the tested object, that is, the tested object is placed on the top of the support table 55, and then the No. 5 electric push rod 56 is controlled to retract the push rod, and then the No. 4 electric push rod 53 is controlled to extend the push rod, and the No. 4 clamping plate 54 is used to clamp the tested object, and then the supporting roller 6 is rotated by the electric rotary drive mechanism, so that the accommodating groove 7 is connected with the bottom of the main through groove 5, and then the No. 6 electric push rod 57 is controlled to extend, and then the No. 4 electric push rod 53 is controlled to retract the push rod, and the tested object can be placed on the top of the support plate 67, and then the No. 6 electric push rod 57 is controlled to retract appropriately, so that the tested object is surrounded by cold air in the refrigeration chamber 4 and heated, thereby improving the uniform cooling effect.

[0044] When it is necessary to return to the heating chamber 3, control the No. 6 electric push rod 57 to extend, and then control the No. 4 electric push rod 53 to extend the push rod, so that the No. 4 clamping plate 54 can be used to clamp the object, and then control the No. 6 electric push rod 57 to retract the push rod, and then control the electric rotation drive mechanism to make the accommodating groove 7 connected with the upper part of the main through groove 5, and then control the No. 4 electric push rod 53 to retract the push rod, and then control the No. 5 electric push rod 56 to extend the push rod, and then control the upper servo motor 65 to reverse, so that the two clamping claws 59 can be close to each other, and then the push plate 63 can be used to clamp the object, and then the No. 5 electric push rod 56 can be controlled to retract the push rod, so that the object in the refrigeration chamber 4 can enter the heating chamber 3.

[0045] A method for controlling a material high-temperature and low-temperature performance testing device based on cyclic rapid temperature change, the method comprising the following steps: Step 101, control the electric rotary drive mechanism to rotate the support roller 6 so that the receiving groove 7 is vertically connected to the heating chamber 3, then put the object to be tested into the receiving groove 7, and use the clamping mechanism to clamp the test object on the left and right, and then control the electric heating device 9 and the electric refrigeration device 11 to work to heat and cool the heating chamber 3 and the refrigeration chamber 4 respectively.

[0046] Step 102, when a rapid temperature change test is required, the electric rotary drive mechanism is controlled to rotate the support roller 6, so that the receiving groove 7 is connected with the heating chamber 3 or the cooling chamber 4, so that the tested object can be quickly heated or cooled.

[0047] Step 103, when the test object burns due to high temperature, the smoke sensor 10 sounds an alarm, and the controller 14 controls the electric rotary drive mechanism to rotate the support roller 6, so that the receiving groove 7 is sealed by the inner wall of the main through groove 5, thereby quickly isolating the flame and oxygen to extinguish the fire.

[0048] The above is a preferred embodiment of the present invention. For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of the present invention.

Claims

1. A material high-temperature and low-temperature performance testing device based on cyclic rapid temperature change, comprising a cabinet (1) and a cabinet door (2), wherein the cabinet (1) is provided with a cabinet door (2) that can be sealed and locked at the front, and the cabinet (1) is provided with a heating chamber (3) penetrating forward at the top, and a cooling chamber (4) penetrating forward at the bottom, characterized in that: A main through groove (5) is provided in the middle of the cabinet (1) and passes through it from top to bottom. The middle of the main through groove (5) is in the shape of a cylinder passing through from left to right. A horizontal support roller (6) is coaxially and sealedly connected to the middle of the main through groove (5) for rotation. A receiving groove (7) passes through one radial side of the support roller (6), and a clamping mechanism is installed on both the left and right parts. An electric heating device (9) and a smoke sensor (10) are installed in the heating cavity (3), an electric cooling device (11) is installed in the cooling cavity (4), and temperature sensors (12) are fixed in the heating cavity (3) and the cooling cavity (4), respectively. The support roller (6) and the cabinet (1) are coaxially and sealedly connected to the cabinet (1). An electric rotary drive mechanism is also installed. When the support roller (6) rotates to a certain position in the middle of the main through slot (5), the accommodating slot (7) can be connected to the upper or lower part of the main through slot (5). When the support roller (6) rotates to a certain position in the middle of the main through slot (5), the accommodating slot (7) can be sealed by the inner wall of the main through slot (5). A controller (14) is fixed to the cabinet (1). The electric heating device (9), the smoke sensor (10), the electric refrigeration device (11), the temperature sensor (12), the electric rotary drive mechanism and the controller (14) are electrically connected. The controller (14) is externally connected to a power supply.

2. The high-temperature and low-temperature performance testing equipment for materials based on cyclic rapid temperature change according to claim 1, characterized in that: The cabinet (1) is fixed with an electric-driven three-way valve (15) and a vacuum pump (16); the three ports of the electric-driven three-way valve (15) are respectively connected to a No. 1 connecting pipe (17); each of the No. 1 connecting pipes (17) is respectively connected to the middle of the main through groove (5), the suction port of the vacuum pump (16) and the outside; a flame-retardant filter element (18) is sealed and fixed in the No. 1 connecting pipe (17) connected to the main through groove (5); the accommodating groove (7) can also be simultaneously connected to the No. 1 connecting pipe (17) when facing the inner wall of the main through groove (5); the electric-driven three-way valve (15) and the vacuum pump (16) are electrically connected to the controller (14).

3. The high-temperature and low-temperature performance testing equipment for materials based on cyclic rapid temperature change according to claim 2, characterized in that: The electric refrigeration device (11) is fixed to the lower rear part of the cabinet (1); the refrigeration end of the electric refrigeration device (11) is located in the refrigeration cavity (4), and the heat dissipation end is not located in the refrigeration cavity (4); the heat dissipation end of the electric refrigeration device (11) is installed with a heat dissipation mechanism; the support roller (6) is a hollow structure; a through hole (20) in the same direction as the accommodating groove (7) is opened on each radial side of the left and right parts of the support roller (6); the through hole (20) is connected to the inner cavity of the support roller (6); a first cooling pipe (21) is fixed to the lower rear part of the cabinet (1); the bottom of the first cooling pipe (21) is in a horizontal reciprocating zigzag shape, and the left and right parts are both in an upward bending shape; the first cooling pipe (21) The front of the support roller (21) is fixedly connected to a No. 1 pump (22), the suction port and the discharge port of the No. 1 pump (22) are respectively connected to the No. 1 cooling pipe (21), and are electrically connected to the controller (14), the penetration points of the left and right parts of the No. 1 cooling pipe (21) extend to the main through groove (5) and are connected, when the support roller (6) rotates in the main through groove (5), the through hole (20) is sealed by the inner wall of the main through groove (5) or is connected to the left and right parts of the No. 1 cooling pipe (21), the inner cavities of the No. 1 cooling pipe (21) and the support roller (6) are both stored with cooling liquid, and when the through hole (20) is connected to the No. 1 cooling pipe (21), the No. 1 connecting pipe (17) is connected to the accommodating groove (7).

4. The high-temperature and low-temperature performance testing equipment for materials based on cyclic rapid temperature change according to claim 3, characterized in that: The cabinet (1) has a rear through groove (23) at the rear, the upper part of which is connected to the heating chamber (3), and the bottom is in a horizontal cylindrical shape. The bottom of the rear through groove (23) is coaxially sealed and rotatably connected to a horizontal rear support cylinder (24). The rear support cylinder (24) is sealed and closed in the axial direction, and a rear air inlet (25) and a rear air outlet (26) are radially penetrated in the left and right parts. The two rear air inlets (25) are respectively fixed with a horizontal rear support frame (27). The two rear support frames (27) are respectively rotatably connected with a vertical rear output shaft (28). The two rear output shafts (28) are respectively coaxially fixed with a rear turbofan (29). A horizontal rear servo motor (30) is fixed to the right end of the rear support cylinder (24). The rear servo motor (30) is coaxially fixed with a rear input shaft (31) and is connected to the control The cabinet body (1) is electrically connected to the rear output shaft (28) and the two rear input shafts (31) through meshing of bevel gears. The cabinet body (1) is provided with four horizontal rear vents (32) at the rear end. The rear support tube (24) is driven to rotate by an electric rotary drive mechanism. When the rear support tube (24) rotates to a certain angle, the rear air inlet (25) and the rear air outlet (26) can be connected to the upper part of the rear through groove (23) or the rear vents (32). When the rear air inlet (25) and the rear air outlet (26) are connected to the upper part of the rear through groove (23), the rear vents (32) are sealed and closed by the outer wall of the rear support tube (24). When the rear air inlet (25) and the rear air outlet (26) are connected to the rear vents (32), the upper part of the rear through groove (23) is sealed and closed by the outer wall of the rear support tube (24).

5. The high-temperature and low-temperature performance testing equipment for materials based on cyclic rapid temperature change according to claim 4, characterized in that: A clearance groove (33) is formed at the rear lower portion of the rear support tube (24); the cooling end of the electric heating device (9) is at the bottom and the heat dissipation end is at the top; the heat dissipation mechanism comprises a No. 2 cooling tube (34), a No. 2 pump (35), a heat dissipation tube (36), and heat dissipation fins (37); the No. 2 cooling tube (34) is fixed inside the cabinet (1) and is located above the heat dissipation end of the electric heating device (9); the bottom of the No. 2 cooling tube (34) is horizontally reciprocatingly bent, and the left and right parts are both vertical; the No. 2 cooling tube (34) is fixedly connected to a A No. 2 pump (35), wherein the suction port and the discharge port of the No. 2 pump (35) are respectively connected to the No. 2 cooling pipe (34), and are electrically connected to the controller (14); the upper portion of the No. 2 cooling pipe (34) is fixedly connected to a horizontal heat dissipation pipe (36); the outer wall of the heat dissipation pipe (36) is fixed with a row of heat dissipation fins (37); the heat dissipation pipe (36) and the heat dissipation fins (37) are located in the rear support tube (24); the upper portion of the No. 2 cooling pipe (34) is gap-connected with the gap groove (33), and coolant is stored therein.

6. The high-temperature and low-temperature performance testing equipment for materials based on cyclic rapid temperature change according to claim 4, characterized in that: The cabinet body (1) has a front through slot (38) at the front, the upper portion of the front through slot (38) is in the form of four vertical through holes connected to the heating chamber (3), and the middle and upper portion is in the form of a horizontal cylindrical shape. The middle and upper portion of the front through slot (38) is coaxially sealed and rotatably connected to a horizontal front support cylinder (39), and the bottom portion is in the form of four vertical through holes connected to the refrigeration chamber (4). The front support cylinder (39) is sealed in the axial direction, and the left and right portions are each penetrated by a front air inlet (40) and a front air outlet (41) on both radial sides. The front air inlet (40) and the front air outlet (41) are Corresponding to the four penetration points at the upper and lower parts of the front through slot (38), the two front air inlets (40) are respectively fixed with horizontal front support frames (42), the two front support frames (42) are respectively rotatably connected with vertical front output shafts (43), the two front output shafts (43) are respectively coaxially fixed with front turbofans (44), the right end of the front support cylinder (39) is fixed with a front servo motor (45), and a flame retardant heat insulation layer (391) is fixed to the inner wall, the rotating shaft of the front servo motor (45) is coaxially fixed with a front input shaft (46), and is connected to the controller (14 ) are electrically connected, the front output shaft (43) and the two front input shafts (46) are transmission-connected through the meshing of bevel gears, the cabinet body (1) is provided with four front vents (47) at the front, the front air inlet (40) and the front air outlet (41) correspond to the front vents (47) in front and back, the front vents (47) are bent, and the upper part is connected to the bottom of the heating chamber (3), the bottom of the front vents (47) is connected to the front part of the upper middle part of the front through slot (38), the front support cylinder (39) is driven to rotate by an electric rotary drive mechanism, and the When the front support tube (39) is rotated to a certain angle, the front air inlet (40) and the front air outlet (41) can be connected to the upper and lower parts of the front through slot (38) or to the front vent (47) at the same time; when the front air inlet (40) and the front air outlet (41) are connected to the upper and lower parts of the front through slot (38) at the same time, the front vent (47) is sealed and closed by the outer wall of the front support tube (39); when the front air inlet (40) and the front air outlet (41) are connected to the front vent (47), the upper and lower parts of the front through slot (38) are sealed and closed by the outer wall of the front support tube (39).

7. The high-temperature and low-temperature performance testing equipment for materials based on cyclic rapid temperature change according to claim 6, characterized in that: The electric rotary drive mechanism comprises a No. 4 support cylinder (48), an outer gear ring (49), a No. 1 electric push rod (50), a No. 2 electric push rod (51), a No. 3 electric push rod (52), and a rack (491); the front support cylinder (39), the support roller (6), and the rear support cylinder (24) are respectively coaxially fixed with the No. 4 support cylinder (48); the No. 4 support cylinder (48) is respectively coaxially fixed with the outer gear ring (49); the cabinet (1) is sequentially fixed with the No. 1 electric push rod (50), the No. 2 electric push rod (51), the No. 3 electric push rod (52), and the rack (491); The push rod (50), the push rod (51) and the push rod (52) of the first electric push rod (50), the push rod (51) and the push rod (52) of the second electric push rod (51) are respectively fixed with racks (491) in sequence, and each of the racks (491) is respectively meshed with each outer gear ring (49), and the first electric push rod (50), the second electric push rod (51) and the third electric push rod (52) are respectively electrically connected to the controller (14).

8. A material high-temperature and low-temperature performance testing device based on cyclic rapid temperature change according to any one of claims 1 to 7, characterized in that: The clamping mechanism comprises a No. 4 electric push rod (53) and a No. 4 clamping plate (54); the No. 4 electric push rods (53) parallel to the axial direction are respectively fixed at both ends of the support roller (6); the push rods of the two No. 4 electric push rods (53) pass through the left and right parts of the support roller (6), and the ends of the push rods are respectively fixed with a vertical No. 4 clamping plate (54); the No. 4 electric push rod (53) is electrically connected to the controller (14), and the two No. 4 clamping plates (54) are respectively located in the accommodating groove (7).

9. The high-temperature and low-temperature performance testing equipment for materials based on cyclic rapid temperature change according to claim 8, characterized in that: A horizontal and upwardly convex support platform (55) is fixed at the bottom end of the accommodating groove (7), two vertical No. 5 electric push rods (56) are fixed at the top end of the cabinet (1), and two vertical No. 6 electric push rods (57) are fixed at the bottom end, the push rods of the two No. 5 electric push rods (56) pass through the upper part of the cabinet (1), and a horizontal support base (58) is fixed at the bottom end, the No. 5 electric push rods (56) and the No. 6 electric push rods (57) are electrically connected to the controller (14), the left and right parts of the support base (58) are respectively connected to the clamping claws (59) for sliding left and right, and the upper part is connected to the bidirectional screw rod (60) for rotation along the left and right directions, the left part of the support base (58) is connected to the vertical hollow shaft (61), the hollow shaft (61) and the bidirectional screw rod (60) are connected to each other through a bevel gear for transmission, and the two parts are connected to each other through a bevel gear. The upper part of the clamping jaw (59) is threadedly connected to the left and right parts of the bidirectional screw rod (60), and the bottom is slidably connected to the left and right with a vertical push plate (63). A compression spring (64) is fixed between the two push plates (63) and the push plates (63) to which they are slidably connected. Under the elastic repulsive force of the compression spring (64), the two push plates (63) have a tendency to move away from the clamping jaw (59) to which they are slidably connected and can extend out from the clamping jaw (59). A vertical upper servo motor (65) is fixed to the top of the cabinet (1). The rotating shaft of the upper servo motor (65) is coaxially fixed with a flower shaft (66). The flower shaft (66) is coaxially slidably connected with the hollow shaft (61). The push rods of the two No. 6 electric push rods (57) pass through the lower part of the cabinet (1) and are fixed with a horizontal support plate (67).

10. A method for controlling a material high-temperature and low-temperature performance testing device based on cyclic rapid temperature change according to any one of claims 2, 3, 4, 5, 6, 7, and 9, characterized in that: The method of use comprises the following steps: Step 101, the support roller (6) is rotated by controlling the electric rotary drive mechanism so that the receiving groove (7) is vertically connected to the heating chamber (3), and then the object to be tested is placed in the receiving groove (7), and the clamping mechanism is used to clamp the test object on the left and right, and then the electric heating device (9) and the electric cooling device (11) are controlled to work to heat the heating chamber (3) and cool the cooling chamber (4) respectively; Step 102: When a rapid temperature change test is required, the electric rotary drive mechanism is controlled to rotate the support roller (6), so that the receiving groove (7) is connected to the heating chamber (3) or the cooling chamber (4), so that the object to be tested can be quickly heated or cooled; Step 103: When the test object burns due to high temperature, the smoke sensor (10) sounds an alarm, and the controller (14) controls the electric rotary drive mechanism to rotate the support roller (6), so that the receiving groove (7) is sealed by the inner wall of the main through groove (5), thereby quickly isolating the flame and oxygen to extinguish the fire.

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