Temperature control ice fracture resistance testing device and method thereof

Abstract

The invention relates to the technical field of temperature control ice fracture resistance testing, and particularly discloses a temperature control ice fracture resistance testing device and a method thereof.The temperature control ice fracture resistance testing device comprises a material positioning assembly, a sealing assembly is installed at the top of the material positioning assembly, a loading piston is installed at the top of the sealing assembly, and a dynamometer is installed at the top of the loading piston; a loading wheel disc is mounted on one side of the dynamometer, and a movable cross beam is mounted at the bottom of a loading piston; during detection, firstly, a rotating arm is rotated to drive a supporting block to be away from a roller assembly, in the detection process of an upper supporting nail and a lower supporting nail, under the action of pressure, if a material deforms, a positioning concentric-square-shaped plate descends so as to push a lifting concentric-square-shaped plate and a lifting limiting plate to descend, and then a telescopic spring is compressed; and the height of the lifting concentric-square-shaped plate can be detected by arranging a sensor, so that a test result can be calculated, and secondary verification can be performed on the test result.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature-controlled ice anti-bending performance testing, and more specifically to a temperature-controlled ice anti-bending performance testing device and a method thereof. Background Art

[0002] Flexural strength is an important material performance indicator that determines the bearing capacity and seismic resistance of the structure. Measuring the flexural performance of materials is of great significance for evaluating the safety and stability of the structure. At present, the three-point bending method is usually used to measure the flexural performance of materials in material mechanics, and it has been widely used in civil engineering. However, these devices currently do not have independent loading capabilities and temperature control technology, and require the use of external testing machines to provide bending loads. This greatly limits on-site material performance testing and is not portable. For ice and frozen soil materials in cold regions, temperature changes and transportation disturbances from the site to the laboratory can cause large measurement errors.

[0003] During the use of existing equipment, different materials need to be tested. During the temperature-controlled ice bending resistance test of some materials with higher density, the operator needs to spend a lot of effort to place the material on the test device, which is inconvenient for users to use. In addition, during the test, some materials may break and splash when pressure is applied, which may cause damage to the temperature control box, making it inconvenient for safe testing. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a temperature-controlled ice anti-bending performance testing device and method thereof to solve the problems existing in the above-mentioned background technology.

[0005] The present invention provides the following technical solutions: a temperature-controlled ice anti-bending performance testing device, comprising a material positioning assembly, a sealing assembly is installed on the top of the material positioning assembly, a loading piston is installed on the top of the sealing assembly, a dynamometer is installed on the top of the loading piston, a loading wheel is installed on one side of the dynamometer, a movable crossbeam is installed on the bottom of the loading piston, upper support nails are installed on both sides of the bottom of the movable crossbeam, the material positioning assembly comprises a positioning assembly, a roller assembly is installed on the top of the material positioning assembly, connecting support leg assemblies are installed at the four corners of the top of the positioning assembly, and a lower support nail is installed on the top of the positioning assembly.

[0006] Furthermore, the positioning assembly includes a positioning base, a positioning square groove is opened in the middle of the top of the positioning base, U-shaped positioning grooves are opened on both sides of the positioning base, sliding grooves are opened on the front and back sides of the U-shaped positioning grooves, and hexagonal positioning grooves are opened at the four corners of the top of the positioning base.

[0007] Furthermore, the connecting support leg assembly includes a support leg body, a reinforcing inclined plate is installed on the side of the support leg body close to the roller assembly, a square notch is opened at the bottom of the support leg body away from the roller assembly, a positioning bearing is installed at the top of the square notch, a rotating shaft is installed on the inner side of the positioning bearing, a threaded rod is installed at the bottom of the rotating shaft, a hexagonal lifting block is sleeved on the outer side of the threaded rod, a rotating arm is fixedly connected to the outer side of the rotating shaft, a support block is installed on the side of the rotating arm away from the rotating shaft, and a positioning notch is opened at the top of the support block close to the roller assembly.

[0008] Furthermore, the roller assembly includes a lifting base, a positioning slider is fixedly connected to one side of the front and back sides of the lifting base close to the positioning assembly, a telescopic spring is fixedly connected to the bottom of the inner side of the lifting base, a lifting limit plate is fixedly connected to the top of the telescopic spring, a lifting limit plate is fixedly connected to the top of the lifting limit plate, a lifting return plate is fixedly connected to the top of the lifting return plate, a positioning return plate is fixedly connected to the top of the lifting return plate, and a roller body is installed on the inner side of the positioning return plate.

[0009] Furthermore, the sealing assembly includes a positioning top plate, a first guide wheel is installed in the middle of the bottom of the positioning top plate, the four corners of the bottom of the positioning top plate are fixedly connected to the second guide wheels, a pulling rope is arranged on the outer side of the first guide wheel and the second guide wheel, the bottom of the pulling rope is fixedly connected to a pulling positioning block, the bottom of the pulling positioning block is fixedly connected to a second rubber expansion cloth, both sides of the bottom of the positioning top plate are fixedly connected to the first rubber expansion cloth, and the bottom of the first rubber expansion cloth is fixedly connected to a mountain-shaped positioning plate.

[0010] Furthermore, the tolerance between the size of the connecting support leg assembly and the size of the outer side of the lifting base is matched, and the lifting base and the connecting support leg assembly are welded; when the roller assembly is located on the inner side of the connecting support leg assembly, no positioning slider is provided; the width of the U-shaped positioning groove and the width of the lifting base are clearance matched; the shape and size of the sliding groove and the shape and size of the positioning slider are clearance matched.

[0011] Furthermore, the height difference between the support block and the positioning notch is matched with the distance gap between the top of the lifting base and the bottom of the positioning return plate, the cross-sectional size of the hexagonal lifting block is matched with the tolerance between the hexagonal positioning groove, and a thread groove is provided on the top of the hexagonal lifting block, and the thread groove on the top of the hexagonal lifting block cooperates with the thread on the outside of the threaded rod.

[0012] Furthermore, the front and back sides of the first rubber expansion cloth are both in contact with the supporting leg body, and both sides of the second rubber expansion cloth are both in contact with the supporting leg body. A positioning groove is provided on the inner side of the side wall of the lifting base. The size of the interior of the positioning groove of the lifting base is clearance matched with the cross-sectional size of the lifting limit plate, and the size of the top opening of the positioning groove of the lifting base is clearance matched with the size of the lifting return plate.

[0013] A method for testing the anti-bending performance of temperature-controlled ice comprises the following steps:

[0014] S1. Material placement and positioning: the material to be tested for temperature-controlled ice bending resistance is placed on the top of the roller assemblies on the left and right sides by means of transportation or hoisting equipment, and then the material to be tested for temperature-controlled ice bending resistance is pushed toward the middle of the positioning assembly. During the movement of the material, the roller body rotates to reduce the friction force on the material during the movement, so that the force pushing the material to move is effectively reduced, thereby facilitating the use of the user;

[0015] S2, material test, when conducting the test, the loading wheel is rotated to extend or shorten the loading piston, thereby pushing the movable crossbeam down, and then driving the upper support nail to descend, and the temperature control ice anti-bending performance test is realized through the cooperation between the upper support nail and the lower support nail. At the same time, the pulling rope is pulled under the positioning of the first guide wheel and the second guide wheel, and the second rubber telescopic cloth is pulled to unfold by pulling the positioning block, and then the mountain-shaped positioning plate is driven to rise or fall through the movable crossbeam, and then the first rubber telescopic cloth is driven to unfold, so as to isolate the test environment of the temperature control ice anti-bending performance test material, effectively protect the inside of the temperature measuring box located outside the connecting support leg assembly, avoid the temperature control ice anti-bending performance test material from splashing due to pressure, and cause damage to the temperature measuring box, thereby ensuring the normal operation of the equipment;

[0016] When testing, first rotate the rotating arm to drive the support block away from the roller assembly. During the testing process of the upper and lower support nails, under the action of pressure, if the material is deformed, the positioning return plate will drop, thereby pushing the lifting return plate and the lifting limit plate to drop, and then compressing the telescopic spring. The height of the lifting return plate can be detected by setting a sensor, so as to deduce the test result, and the test result can be verified twice.

[0017] S3. Equipment movement. When the equipment needs to be moved, the threaded rod is driven to rotate by rotating the rotating arm and the support block, and then the cooperation between the hexagonal lifting block and the hexagonal positioning groove will push the hexagonal lifting block to move to the bottom, thereby raising the equipment. Then, the roller assembly is separated from the positioning assembly, and the roller assembly is flipped over to insert the positioning slider into the sliding groove. The roller body can be used as a moving wheel, and then, through the cooperation between the lifting return plate, the lifting limit plate, the telescopic spring and the lifting base, it can be used as a shock absorbing component of the moving wheel, thereby facilitating the movement of the equipment.

[0018] Technical effects and advantages of the present invention:

[0019] 1. The present invention places the material to be tested for temperature-controlled ice anti-bending performance on the top of the roller assemblies on the left and right sides through transportation or lifting equipment, and then pushes the material to be tested for temperature-controlled ice anti-bending performance toward the middle of the positioning assembly. During the movement of the material, the roller body rotates to reduce the friction force on the material during the movement, so that the force pushing the material to move is effectively reduced, thereby facilitating the use of the user.

[0020] 2. In the present invention, the loading wheel is rotated to extend or shorten the loading piston during the test, thereby pushing the movable crossbeam down, and then driving the upper support nail to descend. The temperature control ice anti-bending performance test is realized through the cooperation between the upper support nail and the lower support nail. At the same time, the pulling rope is pulled under the positioning of the first guide wheel and the second guide wheel, and the second rubber telescopic cloth is pulled to unfold by pulling the positioning block. Then, the mountain-shaped positioning plate is driven to rise or fall through the movable crossbeam, and then the first rubber telescopic cloth is driven to unfold, thereby isolating the test environment of the temperature control ice anti-bending performance test material, effectively protecting the inside of the temperature measuring box located outside the connecting support leg assembly, avoiding the temperature control ice anti-bending performance test material from splashing due to pressure, and thus preventing the temperature measuring box from being damaged, thereby ensuring the normal operation of the equipment.

[0021] 3. When the present invention is testing, the rotating arm is first rotated to drive the support block away from the roller assembly. During the testing process of the upper and lower support pins, under the action of pressure, if the material is deformed, the positioning return plate will be lowered, thereby pushing the lifting return plate and the lifting limit plate to fall, and then the telescopic spring will be compressed. The height of the lifting return plate can be detected by setting a sensor, so as to calculate the test result, and the test result can be verified twice.

[0022] 4. In the process that the device needs to be moved, the present invention drives the threaded rod to rotate by rotating the rotating arm and the supporting block, and then the hexagonal lifting block and the hexagonal positioning groove cooperate to push the hexagonal lifting block to move to the bottom, thereby lifting the device, and then the roller assembly is separated from the positioning assembly, and then the roller assembly is turned over to insert the positioning slider into the sliding groove, the roller body can be used as a moving wheel, and then the lifting return plate, the lifting limit plate, the telescopic spring and the lifting base cooperate to use it as a shock absorbing component of the moving wheel, thereby facilitating the movement of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the structure of the material positioning component of the present invention.

[0025] Figure 3 It is a schematic diagram of the structure of the positioning component of the present invention.

[0026] Figure 4 It is a schematic diagram of the structure of the connecting support leg assembly of the present invention.

[0027] Figure 5 It is a schematic diagram of the back structure of the connecting support leg assembly of the present invention.

[0028] Figure 6 It is a schematic diagram of the structure of the roller assembly of the present invention.

[0029] Figure 7 for Figure 6 A partial enlarged view of the .

[0030] Figure 8 It is a schematic diagram of the sealing assembly structure of the present invention.

[0031] The accompanying drawings are marked as follows: 1. material positioning assembly; 101. positioning assembly; 1011. positioning base; 1012. positioning square groove; 1013. U-shaped positioning groove; 1014. sliding groove; 1015. hexagonal positioning groove; 102. connecting support leg assembly; 1021. support leg body; 1022. strengthening inclined plate; 1023. square notch; 1024. positioning bearing; 1025. rotating shaft; 1026. threaded rod; 1027. hexagonal lifting block; 1028. rotating arm; 1029. support block; 10210. positioning notch; 103. roller assembly; 10 31. Lifting base; 1032. Positioning slider; 1033. Lifting limit plate; 1034. Telescopic spring; 1035. Lifting return plate; 1036. Positioning return plate; 1037. Roller body; 104. Lower support nail; 2. Sealing assembly; 201. Positioning top plate; 202. First guide wheel; 203. First rubber telescopic cloth; 204. Mountain-shaped positioning plate; 205. Second guide wheel; 206. Pull rope; 207. Pull positioning block; 208. Second rubber telescopic cloth; 3. Loading piston; 4. Movable crossbeam; 5. Upper support nail; 6. Dynamometer; 7. Loading wheel. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The temperature-controlled ice anti-bending performance testing device and method involved in the present invention are not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0033] Reference Figures 1 to 8The present invention provides a temperature-controlled ice anti-bending performance testing device, comprising a material positioning component 1, a sealing component 2 is installed on the top of the material positioning component 1, a loading piston 3 is installed on the top of the sealing component 2, a dynamometer 6 is installed on the top of the loading piston 3, a loading wheel 7 is installed on one side of the dynamometer 6, a movable crossbeam 4 is installed on the bottom of the loading piston 3, upper support nails 5 are installed on both sides of the bottom of the movable crossbeam 4, the material positioning component 1 comprises a positioning component 101, a roller component 103 is installed on the top of the material positioning component 1, and the four corners of the top of the positioning component 101 are installed There is a connecting support leg assembly 102, and a lower support nail 104 is installed on the top of the positioning assembly 101; the material that needs to be tested for temperature-controlled ice anti-bending performance is placed on the top of the roller assemblies 103 on the left and right sides through transportation or lifting equipment, and then the material that needs to be tested for temperature-controlled ice anti-bending performance is pushed toward the middle of the positioning assembly 101. During the movement of the material, the roller body 1037 rotates to reduce the friction force on the material during the movement, so that the force pushing the material to move is effectively reduced, thereby facilitating use by users.

[0034] Furthermore, the positioning assembly 101 includes a positioning base 1011, a positioning square groove 1012 is opened in the middle of the top of the positioning base 1011, U-shaped positioning grooves 1013 are opened on both sides of the positioning base 1011, sliding grooves 1014 are opened on the front and back sides of the U-shaped positioning groove 1013, and hexagonal positioning grooves 1015 are opened at the four corners of the top of the positioning base 1011.

[0035] Furthermore, the connecting support leg assembly 102 includes a support leg body 1021, a reinforcing inclined plate 1022 is installed on the side of the support leg body 1021 close to the roller assembly 103, a square notch 1023 is opened at the bottom of the support leg body 1021 away from the roller assembly 103, a positioning bearing 1024 is installed at the top of the square notch 1023, a rotating shaft 1025 is installed on the inner side of the positioning bearing 1024, a threaded rod 1026 is installed at the bottom of the rotating shaft 1025, a hexagonal lifting block 1027 is sleeved on the outer side of the threaded rod 1026, a rotating arm 1028 is fixedly connected to the outer side of the rotating shaft 1025, a support block 1029 is installed on the side of the rotating arm 1028 away from the rotating shaft 1025, and the top of the support block 1029 close to the roller assembly 103 is opened. A positioning notch 10210 is provided; when the equipment needs to be moved, the threaded rod 1026 is driven to rotate by rotating the rotating arm 1028 and the support block 1029, and then the cooperation between the hexagonal lifting block 1027 and the hexagonal positioning groove 1015 will push the hexagonal lifting block 1027 to move to the bottom, thereby raising the equipment, and then by separating the roller assembly 103 from the positioning assembly 101, and then flipping the roller assembly 103 to insert the positioning slider 1032 into the sliding groove 1014, the roller body 1037 can be used as a moving wheel, and then through the cooperation between the lifting return plate 1035, the lifting limit plate 1033, the telescopic spring 1034 and the lifting base 1031, it can be used as a shock absorbing component of the moving wheel, thereby facilitating the movement of the equipment.

[0036] Furthermore, the roller assembly 103 includes a lifting base 1031, a positioning slider 1032 is fixedly connected to the side of the front and back sides of the lifting base 1031 close to the positioning assembly 101, a telescopic spring 1034 is fixedly connected to the bottom of the inner side of the lifting base 1031, a lifting limit plate 1033 is fixedly connected to the top of the telescopic spring 1034, a lifting limit plate 1035 is fixedly connected to the top of the lifting limit plate 1033, a positioning return plate 1036 is fixedly connected to the top of the lifting return plate 1035, and a roller is installed on the inner side of the positioning return plate 1036. Wheel body 1037; when conducting inspection, first rotate the rotating arm 1028 to drive the support block 1029 away from the roller assembly 103. During the inspection of the upper support nail 5 and the lower support nail 104, under the action of pressure, if the material is deformed, the positioning return plate 1036 will be lowered, thereby pushing the lifting return plate 1035 and the lifting limit plate 1033 to fall, and then the telescopic spring 1034 will be compressed. The height of the lifting return plate 1035 can be detected by setting a sensor, so as to infer the test result, and the test result can be verified for the second time.

[0037] Furthermore, the sealing assembly 2 includes a positioning top plate 201, a first guide wheel 202 is installed in the middle of the bottom of the positioning top plate 201, and the four corners of the bottom of the positioning top plate 201 are fixedly connected to the second guide wheels 205, and the outer sides of the first guide wheel 202 and the second guide wheel 205 are provided with a pulling rope 206, and the bottom of the pulling rope 206 is fixedly connected to a pulling positioning block 207, and the bottom of the pulling positioning block 207 is fixedly connected to a second rubber telescopic cloth 208, and both sides of the bottom of the positioning top plate 201 are fixedly connected to the first rubber telescopic cloth 203, and the bottom of the first rubber telescopic cloth 203 is fixedly connected to a mountain-shaped positioning plate 204; when testing, the loading wheel disc 7 is rotated to extend or shorten the loading piston 3, thereby pushing The movable crossbeam 4 descends, and then drives the upper support nail 5 to descend, and the temperature-controlled ice anti-bending performance test is realized through the cooperation between the upper support nail 5 and the lower support nail 104. At the same time, the pulling rope 206 is pulled to pull the second rubber telescopic cloth 208 to unfold by pulling the positioning block 207 under the positioning of the first guide wheel 202 and the second guide wheel 205, and then the mountain-shaped positioning plate 204 is driven to rise or fall through the movable crossbeam 4, and then the first rubber telescopic cloth 203 is driven to unfold, thereby isolating the test environment of the temperature-controlled ice anti-bending performance test material, effectively protecting the inside of the temperature measuring box located on the outside of the connecting support leg assembly 102, avoiding the temperature measuring box damage caused by material splashing due to pressure of the temperature-controlled ice anti-bending performance test material, and ensuring the normal operation of the equipment.

[0038] Furthermore, the tolerance between the size of the connecting support leg assembly 102 and the size of the outer side of the lifting base 1031 is matched, and the lifting base 1031 and the connecting support leg assembly 102 are welded. When the roller assembly 103 is located on the inner side of the connecting support leg assembly 102, the positioning slider 1032 is not set, the width of the U-shaped positioning groove 1013 and the width of the lifting base 1031 have a clearance match, and the shape and size of the sliding groove 1014 have a clearance match with the shape and size of the positioning slider 1032.

[0039] Furthermore, the height difference between the support block 1029 and the positioning notch 10210 matches the distance gap between the top of the lifting base 1031 and the bottom of the positioning return plate 1036, the cross-sectional size of the hexagonal lifting block 1027 matches the tolerance between the hexagonal positioning groove 1015, and a thread groove is provided on the top of the hexagonal lifting block 1027, and the thread groove on the top of the hexagonal lifting block 1027 matches the thread on the outside of the threaded rod 1026.

[0040] Furthermore, the front and back sides of the first rubber expansion cloth 203 are both in contact with the supporting leg body 1021, and both sides of the second rubber expansion cloth 208 are both in contact with the supporting leg body 1021. A positioning groove is provided on the inner side of the side wall of the lifting base 1031. The size inside the positioning groove of the lifting base 1031 is clearance matched with the cross-sectional size of the lifting limit plate 1033, and the top opening size of the positioning groove of the lifting base 1031 is clearance matched with the size of the lifting return plate 1035.

[0041] A method for testing the anti-bending performance of temperature-controlled ice comprises the following steps:

[0042] S1. Material placement and positioning: the material to be tested for temperature-controlled ice bending resistance is placed on the top of the roller assemblies 103 on the left and right sides by means of transportation or hoisting equipment, and then the material to be tested for temperature-controlled ice bending resistance is pushed toward the middle of the positioning assembly 101. During the movement of the material, the roller body 1037 rotates to reduce the friction force on the material during the movement, so that the force pushing the material to move is effectively reduced, thereby facilitating the use of the user;

[0043] S2, material test, when conducting the test, the loading wheel disc 7 is rotated to extend or shorten the loading piston 3, thereby pushing the movable crossbeam 4 down, and then driving the upper support nail 5 to descend, and the temperature control ice anti-bending performance test is realized through the cooperation between the upper support nail 5 and the lower support nail 104, and at the same time, a pulling rope 206 is pulled under the positioning of the first guide wheel 202 and the second guide wheel 205, and the second rubber telescopic cloth 208 is pulled to unfold by pulling the positioning block 207, and then the mountain-shaped positioning plate 204 is driven to rise or fall through the movable crossbeam 4, and then the first rubber telescopic cloth 203 is driven to unfold, so as to isolate the test environment of the temperature control ice anti-bending performance test material, effectively protect the inside of the temperature measuring box located outside the connecting support leg assembly 102, avoid the temperature control ice anti-bending performance test material from splashing due to pressure and causing damage to the temperature measuring box, and ensure the normal operation of the equipment;

[0044] When testing, first rotate the rotating arm 1028 to drive the support block 1029 away from the roller assembly 103. During the testing process of the upper support nail 5 and the lower support nail 104, under the action of pressure, if the material is deformed, the positioning return plate 1036 will be lowered, thereby pushing the lifting return plate 1035 and the lifting limit plate 1033 to fall, and then the telescopic spring 1034 will be compressed. The height of the lifting return plate 1035 can be detected by setting a sensor, so as to infer the test result, and the test result can be verified twice.

[0045] S3. Equipment movement. When the equipment needs to be moved, the threaded rod 1026 is driven to rotate by rotating the rotating arm 1028 and the support block 1029, and then the cooperation between the hexagonal lifting block 1027 and the hexagonal positioning groove 1015 will push the hexagonal lifting block 1027 to move to the bottom, thereby raising the equipment. Then, the roller assembly 103 is separated from the positioning assembly 101, and the roller assembly 103 is flipped over to insert the positioning slider 1032 into the sliding groove 1014. The roller body 1037 can be used as a moving wheel, and then through the cooperation between the lifting return plate 1035, the lifting limit plate 1033, the telescopic spring 1034 and the lifting base 1031, it can be used as a shock absorbing component of the moving wheel, thereby facilitating the movement of the equipment.

[0046] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0047] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0048] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 temperature-controlled ice bending resistance testing device, comprising a material positioning assembly (1), characterized in that: A sealing assembly (2) is installed on the top of the material positioning assembly (1), a loading piston (3) is installed on the top of the sealing assembly (2), a dynamometer (6) is installed on the top of the loading piston (3), a loading wheel (7) is installed on one side of the dynamometer (6), a movable crossbeam (4) is installed on the bottom of the loading piston (3), upper support pins (5) are installed on both sides of the bottom of the movable crossbeam (4), the material positioning assembly (1) comprises a positioning assembly (101), a roller assembly (103) is installed on the top of the material positioning assembly (1), connecting support leg assemblies (102) are installed at the four corners of the top of the positioning assembly (101), and a lower support pin (104) is installed on the top of the positioning assembly (101).

2. A temperature-controlled ice bending resistance testing device according to claim 1, characterized in that: The positioning assembly (101) comprises a positioning base (1011), a positioning square groove (1012) is provided in the middle of the top of the positioning base (1011), U-shaped positioning grooves (1013) are provided on both sides of the positioning base (1011), sliding grooves (1014) are provided on the front and back sides of the U-shaped positioning grooves (1013), and hexagonal positioning grooves (1015) are provided at the four corners of the top of the positioning base (1011).

3. A temperature-controlled ice anti-bending performance testing device according to claim 2, characterized in that: The connecting support leg assembly (102) comprises a support leg body (1021), a reinforcing inclined plate (1022) being installed on a side of the support leg body (1021) close to the roller assembly (103), a square notch (1023) being provided at the bottom of the support leg body (1021) on a side away from the roller assembly (103), a positioning bearing (1024) being installed at the top of the square notch (1023), and a rotating shaft (1025) being installed on the inner side of the positioning bearing (1024). ), a threaded rod (1026) is installed at the bottom of the rotating shaft (1025), a hexagonal lifting block (1027) is sleeved on the outer side of the threaded rod (1026), a rotating arm (1028) is fixedly connected to the outer side of the rotating shaft (1025), a supporting block (1029) is installed on the side of the rotating arm (1028) away from the rotating shaft (1025), and a positioning notch (10210) is opened on the top of the support block (1029) on the side close to the roller assembly (103).

4. The temperature-controlled ice anti-bending performance testing device according to claim 3, characterized in that: The roller assembly (103) comprises a lifting base (1031); a positioning slider (1032) is fixedly connected to one side of the lifting base (1031) on the front and back sides close to the positioning assembly (101); a telescopic spring (1034) is fixedly connected to the bottom of the inner side of the lifting base (1031); a lifting limit plate (1033) is fixedly connected to the top of the telescopic spring (1034); a lifting return plate (1035) is fixedly connected to the top of the lifting limit plate (1033); a positioning return plate (1036) is fixedly connected to the top of the lifting return plate (1035); and a roller body (1037) is installed on the inner side of the positioning return plate (1036).

5. The temperature-controlled ice anti-bending performance testing device according to claim 4, characterized in that: The sealing assembly (2) comprises a positioning top plate (201), a first guide wheel (202) is installed in the middle of the bottom of the positioning top plate (201), the four corners of the bottom of the positioning top plate (201) are fixedly connected to second guide wheels (205), a pulling rope (206) is arranged on the outer side of the first guide wheel (202) and the second guide wheel (205), the bottom of the pulling rope (206) is fixedly connected to a pulling positioning block (207), the bottom of the pulling positioning block (207) is fixedly connected to a second rubber telescopic cloth (208), both sides of the bottom of the positioning top plate (201) are fixedly connected to the first rubber telescopic cloth (203), and the bottom of the first rubber telescopic cloth (203) is fixedly connected to a mountain-shaped positioning plate (204).

6. The temperature-controlled ice anti-bending performance testing device according to claim 5, characterized in that: The dimensions of the connecting support leg assembly (102) and the dimensions of the outer side of the lifting base (1031) have a tolerance match, and the lifting base (1031) and the connecting support leg assembly (102) are welded; when the roller assembly (103) is located on the inner side of the connecting support leg assembly (102), no positioning slider (1032) is provided; the width of the U-shaped positioning groove (1013) and the width of the lifting base (1031) have a clearance match; and the shape and size of the sliding groove (1014) and the shape and size of the positioning slider (1032) have a clearance match.

7. The temperature-controlled ice anti-bending performance testing device according to claim 6, characterized in that: The height difference between the support block (1029) and the positioning notch (10210) matches the distance gap between the top of the lifting base (1031) and the bottom of the positioning return plate (1036); the cross-sectional size of the hexagonal lifting block (1027) matches the tolerance of the hexagonal positioning groove (1015); a thread groove is provided on the top of the hexagonal lifting block (1027); the thread groove on the top of the hexagonal lifting block (1027) matches the thread on the outside of the threaded rod (1026).

8. The temperature-controlled ice anti-bending performance testing device according to claim 7, characterized in that: The front and back sides of the first rubber expansion cloth (203) are both in contact with the supporting leg body (1021), and both sides of the second rubber expansion cloth (208) are both in contact with the supporting leg body (1021). A positioning groove is provided on the inner side of the side wall of the lifting base (1031). The inner size of the positioning groove of the lifting base (1031) is clearance matched with the cross-sectional size of the lifting limit plate (1033). The top opening size of the positioning groove of the lifting base (1031) is clearance matched with the size of the lifting return plate (1035).

9. A method for testing the anti-bending performance of temperature-controlled ice, using a device for testing the anti-bending performance of temperature-controlled ice according to claim 8, characterized in that: The following steps are involved: S1. Material placement and positioning: the material to be tested for temperature-controlled ice bending resistance is placed on the top of the roller assemblies (103) on the left and right sides by means of transportation or lifting equipment, and then the material to be tested for temperature-controlled ice bending resistance is pushed toward the middle of the positioning assembly (101). During the movement of the material, the roller body (1037) rotates to reduce the friction force on the material during the movement, thereby effectively reducing the force for pushing the material to move, thereby facilitating use by the user; S2, material testing, when the test is performed, the loading wheel (7) is rotated to extend or shorten the loading piston (3), thereby pushing the movable crossbeam (4) down, and then driving the upper support nail (5) down, and realizing the temperature control ice anti-bending performance test through the cooperation between the upper support nail (5) and the lower support nail (104), and at the same time, a pulling rope (206) is pulled to pull the second rubber telescopic cloth (208) to unfold by pulling the positioning block (207) under the positioning of the first guide wheel (202) and the second guide wheel (205), and then the mountain-shaped positioning plate (204) is driven to rise or fall through the movable crossbeam (4), and then the first rubber telescopic cloth (203) is driven to unfold, thereby isolating the test environment of the temperature control ice anti-bending performance test material, effectively protecting the inside of the temperature measuring box located outside the connecting support leg assembly (102), avoiding the temperature control ice anti-bending performance test material from splashing due to pressure, and thus preventing the temperature measuring box from being damaged, thereby ensuring the normal operation of the equipment; When testing, the rotating arm (1028) is first rotated to drive the support block (1029) away from the roller assembly (103). During the testing process of the upper support nail (5) and the lower support nail (104), if the material is deformed under the action of pressure, the positioning return plate (1036) will be lowered, thereby pushing the lifting return plate (1035) and the lifting limit plate (1033) to fall, and then the telescopic spring (1034) will be compressed. A sensor can be set to detect the height of the lifting return plate (1035), thereby calculating the test result, and the test result can be verified twice. S3, equipment movement. When the equipment needs to be moved, the threaded rod (1026) is driven to rotate by rotating the rotating arm (1028) and the support block (1029). Then, due to the cooperation between the hexagonal lifting block (1027) and the hexagonal positioning groove (1015), the hexagonal lifting block (1027) is pushed to move toward the bottom, thereby raising the equipment. Then, by separating the roller assembly (103) from the positioning assembly (101), and then reversing the roller assembly (103) to insert the positioning slider (1032) into the sliding groove (1014), the roller body (1037) can be used as a moving wheel. Then, through the cooperation between the lifting return plate (1035), the lifting limit plate (1033), the telescopic spring (1034) and the lifting base (1031), it can be used as a shock absorbing component of the moving wheel, thereby facilitating the movement of the equipment.

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