An environmental simulation suitcase walking wheel abrasion test device

Abstract

This invention relates to an environmental simulation device for testing the wear of luggage wheels, belonging to the technical field of luggage wheel wear testing. It includes an experimental trough and a support frame mounted on top of the trough. A fixing component is located on the right side inside the support frame. Several clamping plates, secured with screws, are mounted on the surface of the support frame above the experimental trough. A visual inspection instrument is connected between every two corresponding clamping plates. The visual inspection instrument is used to perform physical analysis and detection of the wear condition of the luggage wheels. A control terminal is located on the front side of the experimental trough. This invention achieves the function of simulating high-temperature and cold-temperature environments through its internal structure, enabling wear testing of luggage wheels under different temperature conditions. It realistically reproduces the product's usage scenario under extreme climates, thereby ensuring that the obtained wear data is closer to actual working conditions and significantly improving the accuracy and comprehensiveness of the test results.

Description

Technical Field

[0001] This invention relates to the field of luggage wheel wear testing technology, specifically to an environmental simulation luggage wheel wear testing device. Background Technology

[0002] The luggage wheel wear testing equipment is a key instrument used to test the quality of luggage wheels. It can quickly evaluate the durability of the wheels and the overall luggage body under laboratory conditions by simulating various actual road conditions and usage environments.

[0003] Chinese patent discloses a "testing device for wear of luggage wheels suitable for simulation of complex application environments" (publication number: CN114459936B). This patent solution places the luggage in a fixed frame, moves the fixed frame to move the luggage to the bottom of the limiting frame at different positions, and uses the protrusion structure of different thicknesses at the bottom of the limiting frame to change the pressure of the pressure rod on the luggage, thereby testing the wear of the luggage wheels under different pressures when the transmission belt is running. However, the above-mentioned technical solutions only simulate different road conditions when conducting wear testing on luggage wheels, failing to simulate wear conditions under cold or hot temperatures and not considering the impact of ambient temperature on the wear performance of the wheels. This results in the test results not being able to fully reflect the wear characteristics of luggage wheels under actual complex temperature environments, thereby reducing the accuracy and reliability of wear testing.

[0004] To address the aforementioned issues, we propose an environmental simulation test device for the wear and tear of luggage wheels. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an environmental simulation test device for the wear of luggage wheels. Through its internal structure, it enables simulation experiments of high and cold environments, allowing for wear testing of luggage wheels under different temperature conditions. This realistically replicates the product's usage scenarios in extreme climates, ensuring that the wear data obtained is closer to actual working conditions and significantly improving the accuracy and comprehensiveness of the test results.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an environmental simulation bag wheel wear testing device, comprising a test trough and a support frame disposed on the top of the test trough. A fixing component is disposed on the right side inside the support frame. Several clamping plates fastened with screws are disposed on the surface of the support frame above the test trough. A vision inspection instrument is connected between every two corresponding clamping plates. The vision inspection instrument is used to perform physical analysis and detection of the wear condition of the bag wheels. A control terminal is disposed on the front side of the test trough. A chain conveyor is disposed inside the test trough. Several simulation components are embedded in the lower side inside the test trough below the chain conveyor. The simulation component includes a simulation shell embedded in the lower side of the inner wall of the experimental tank plate. Connecting vertical blocks are fixedly installed on opposite sides of the lower inner wall of the simulation shell. A conversion plate is rotatably installed on the opposite sides of the two connecting vertical blocks. Two push telescopic rods are provided on one side of the bottom of the simulation shell. A set of connecting rods is provided on the left and right sides of the top of the conversion plate. A cooling tank plate is rotatably installed on the upper end of the set of connecting rods closer to the push telescopic rods, and a heating tank plate is rotatably installed on the upper end of the set of connecting rods farther from the push telescopic rods.

[0007] Furthermore, the support frame is composed of several aluminum profile rods, and the grooves on the periphery of the aluminum profile rods facilitate the installation of each component.

[0008] Furthermore, the fixing component includes a connecting frame that is slidably installed inside the support frame, and two first electric telescopic rods are fixedly installed inside the support frame on the rear side of the connecting frame. Adjusting blocks are slidably installed on opposite sides of the inner wall of the connecting frame. A second electric telescopic rod is fixedly installed on the upper side of the inner wall of the connecting frame. A hook is fixedly installed on the side of the adjusting block near the experimental tank plate, and an anti-detachment pressure block is provided on the upper side of the hook.

[0009] Furthermore, the output ends of both first electric telescopic rods are fixedly connected to the surface of the connecting frame, and the output end of the second electric telescopic rod is fixedly connected to the top of the adjusting block. Corrugated plates are fixedly installed between the upper and lower surfaces of the adjusting block and the connecting frame. The corrugated plates can play a protective role during the use of the second electric telescopic rod to prevent contact when using the hook. The anti-detachment pressure block is rotatably connected to the surface of the hook through a rotary spring. The rotary force of the rotary spring is used to make the anti-detachment pressure block tightly pressed against the top of the hook.

[0010] Furthermore, protective plates are fixedly installed on the front and rear sides of the interior of the experimental tank plate, with the protective plates located on one side of the chain conveyor. Reinforcing strips are fixedly installed on the left and right sides of the inner wall of the experimental tank plate, with the reinforcing strips located below the protective plates.

[0011] Furthermore, the chain belt of the chain conveyor is made of aluminum alloy and has fixing holes. Multiple experimental protrusions are provided on the front and rear sides of the top of the experimental trough plate. The end of one experimental protrusion is arc-shaped, and the end of the other experimental protrusion is pointed.

[0012] Furthermore, the output ends of the two push-telescopic rods are rotatably connected to one side of the bottom of the conversion plate, and the fixed end of the push-telescopic rod is located near the bottom corner of the inner wall of the simulation shell, while its telescopic end is connected to the bottom of the conversion plate near the edge. Through the telescopic movement of the two push-telescopic rods, the conversion plate can be driven to rotate around the connecting vertical block.

[0013] Furthermore, each group of connecting rods consists of four rods, which are equidistantly distributed on one side of the top of the conversion plate. The bottom of each connecting rod is rotatably connected to the top of the conversion plate. The top surfaces of the cooling tank plate and the heating tank plate extend through to the top surface of the simulation shell and are located on the lower side of the chain conveyor.

[0014] Furthermore, a number of semiconductor cooling chips are fixedly installed on the upper side of the inner wall of the cooling tank plate, and a cooling aluminum shell is fixedly installed on the inner wall of the cooling tank plate below the number of semiconductor cooling chips, and the interior of the cooling aluminum shell is filled with paraffin wax.

[0015] Furthermore, an electric heating wire is fixedly installed on the upper side of the inner wall of the heating tank plate, and the inner wall of the heating tank plate is coated with a ceramic heat insulation coating. An arc-head start rod is fixedly installed on the top of the conversion plate below the heating tank plate and the cooling tank plate. A normally open start switch is fixedly installed on the inner wall of the simulation shell above the two arc-head start rods. The two normally open start switches are used to control the start and stop of the semiconductor cooling chip and the electric heating wire, respectively.

[0016] Compared with the prior art, the present invention provides an environmental simulation test device for the wear of luggage wheels, which has the following beneficial effects: 1. This device achieves the function of simulating high temperature and cold environment through its internal structure. It can conduct wear tests on the wheels of bags under different temperature conditions, realistically reproducing the usage scenarios of the product in extreme climates. This ensures that the wear data obtained in the test environment is closer to the actual working conditions, and significantly improves the accuracy and comprehensiveness of the test results.

[0017] 2. This device can perform comprehensive testing of multiple environmental parameters on a single machine, effectively reducing testing costs and time.

[0018] 3. By simulating the effect of temperature fluctuations in a real environment on the performance of the wheel material, this device can detect the risk of product failure under extreme temperatures earlier, which helps to improve the overall durability of bag products.

[0019] 4. This device can simulate the bulges on the road surface by setting experimental protrusions on the experimental trough plate, ensuring the simulation effect of the wear of luggage wheels.

[0020] 5. The device, through the setting of several clamps, can better fix the physical analysis equipment, namely the visual inspection instrument of this application, and can also use adjustable clamps to adapt to different models of visual inspection instruments. Furthermore, the visual inspection instrument uses the detection end to collect experimental data of luggage wheels in real time, ensuring the smooth progress of the experiment. Attached Figure Description

[0021] Figure 1 This is a perspective view of the entire invention; Figure 2 This is a perspective view of the support frame of the present invention. Figure 3 for Figure 2 Enlarged structural diagram of section A in the middle; Figure 4 This is a vertical sectional perspective view of the connecting frame of the present invention; Figure 5 for Figure 4 Enlarged structural diagram of section B in the middle; Figure 6 This is a vertical sectional perspective view of the experimental groove plate of the present invention; Figure 7 This is a three-dimensional view of the simulated shell of the present invention; Figure 8 This is a perspective view of the unfolded conversion plate of the present invention; Figure 9 This is a vertical sectional perspective view of the heating slot plate of the present invention; Figure 10 for Figure 9 Enlarged structural diagram of section C; Figure 11 for Figure 9 Enlarged structural diagram of section D in the middle.

[0022] In the diagram: 1. Experimental tank plate; 101. Protective plate; 102. Reinforcing strip; 103. Fixing hole; 104. Experimental protrusion; 2. Support frame; 3. Fixing components; 301. Connecting frame; 302. First electric telescopic rod; 303. Adjusting block; 3031. Corrugated plate; 304. Second electric telescopic rod; 305. Hook; 306. Anti-detachment pressure block; 4. Clamping plate; 5. Vision inspection instrument; 6. Control terminal; 7. Chain conveyor; 8. Simulation component; 801. Simulation shell; 802. Connecting vertical block; 803. Conversion plate; 804. Push telescopic rod; 805. Connecting rod; 806. Cooling tank plate; 8061. Semiconductor refrigeration chip; 8062. Cooling aluminum shell; 807. Heating tank plate; 8071. Electric heating wire; 808. Arc head start rod; 809. Normally open start switch. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figures 1 to 11 The environmental simulation bag wheel wear test equipment in this embodiment includes an experimental trough plate 1, a support frame 2, a fixing component 3, a clamping plate 4, a vision inspection instrument 5, a control terminal 6, a chain conveyor 7, and multiple simulation components 8. The experimental tank plate 1 is placed on a horizontal ground, and a support frame 2 composed of several aluminum profile rods is fixedly installed on its top. The support frame 2 is formed by using the grooves on the periphery of the aluminum profile rods and fastening them with screws and angle brackets, which facilitates the subsequent installation and position adjustment of various components. Protective plates 101 are fixedly installed on the front and rear sides of the interior of the experimental trough plate 1. The protective plates 101 are located on both sides of the conveyor belt of the chain conveyor 7 to prevent the luggage wheels from deviating from the track during the test. Reinforcing strips 102 are also fixedly installed on the left and right sides of the inner wall of the experimental trough plate 1. The reinforcing strips 102 are located below the protective plates 101 to enhance the overall rigidity of the experimental trough plate 1. The chain conveyor 7 is installed inside the experimental trough plate 1. Its chain is made of aluminum alloy material and has evenly spaced fixing holes 103. Multiple experimental protrusions 104 are also provided on the front and rear sides of the top of the experimental trough plate 1. One side of the experimental protrusion 104 has an arc-shaped end and the other side of the experimental protrusion 104 has a pointed end, which is used to simulate road obstacles of different shapes. The bag to be tested is suspended inside the support frame 2 by the fixing component 3. The fixing component 3 includes a connecting frame 301 that is slidably installed inside the support frame 2. Two first electric telescopic rods 302 are fixedly installed inside the support frame 2 on the rear side of the connecting frame 301. Adjusting blocks 303 are slidably installed on opposite sides of the inner wall of the connecting frame 301. A second electric telescopic rod 304 is fixedly installed on the upper side of the inner wall of the connecting frame 301. A hook 305 is fixedly installed on the side of the adjusting block 303 near the experimental tank plate 1, and an anti-detachment pressure block 306 is provided on the upper side of the hook 305. The output ends of the two first electric telescopic rods 302 are fixedly connected to the surface of the connecting frame 301, and the output end of the second electric telescopic rod 304 is fixedly connected to the top of the adjusting block 303. Corrugated plates 3031 are fixedly installed between the upper and lower surfaces of the adjusting block 303 and the connecting frame 301. The corrugated plates 3031 can play a protective role during the use of the second electric telescopic rod 304 to prevent contact when using the hook 305. The anti-detachment pressure block 306 is rotatably connected to the surface of the hook 305 through a rotary spring. The rotary spring's rotational force makes the anti-detachment pressure block 306 tightly press against the top of the hook 305. In specific operation, the handle or pull rod of the bag is hung on the hook 305. The anti-detachment pressure block 306 is tightly pressed against the top of the hook 305 under the action of the rotary spring to prevent the bag from accidentally falling off during the test. The two first electric telescopic rods 302 are started by the control terminal 6. Their output ends push the connecting frame 301 to move back and forth inside the support frame 2, thereby adjusting the front and back position of the bag's traveling wheels on the chain conveyor 7. The second electric telescopic rod 304 is started. Its output end pushes the adjusting block 303 to move up and down, thereby changing the height of the hook 305, thereby adjusting the pressure of the bag's traveling wheels on the surface of the chain conveyor 7. The corrugated plate 3031 fixedly installed between the upper and lower sides of the adjusting block 303 and the connecting frame 301 can extend and retract with the second electric telescopic rod 304, effectively preventing debris from entering the gap of the telescopic rod, and at the same time avoiding the hook 305 from touching the adjusting block 303 during the movement. The chain conveyor 7 can simulate the state of bags walking on flat ground. At the same time, the experimental protrusion 104 intermittently impacts the walking wheel to simulate the uneven road surface. During the test, multiple vision inspection instruments 5 located on the support frame 2 are mainly set up between every two clamping plates 4 to collect images or three-dimensional contour data of the walking wheel in real time, obtain the wear amount of the walking wheel through physical analysis, and transmit the data to the control terminal 6. To simulate the effect of different temperature environments on the wear of the walking wheels, this embodiment has a number of simulation components 8 embedded inside the experimental trough plate 1 and below the chain conveyor 7. Each simulation component 8 includes a simulation shell 801, a connecting vertical block 802, a conversion plate 803, a push telescopic rod 804, two sets of connecting rods 805, a cooling trough plate 806 and a heating trough plate 807. The simulation shell 801 is embedded and fixed inside the lower side of the inner wall of the experimental tank plate 1. Connecting vertical blocks 802 are fixed on the left and right sides of the lower part of the shell. The conversion plate 803 is rotatably installed between the two connecting vertical blocks 802. A set of connecting rods 805 is set on each of the left and right sides of the top of the conversion plate 803. There are four rods in each set, which are equidistantly distributed and rotatably connected to the bottom of the conversion plate 803. The upper end of the connecting rods 805 on the side closer to the push telescopic rod 804 is rotatably installed with a cooling tank plate 806. The upper end of the connecting rods 805 on the side away from the push telescopic rod 804 is rotatably installed with a heating tank plate 807. The top surfaces of the cooling tank plate 806 and the heating tank plate 807 extend through to the top surface of the simulation shell 801 and are located under the chain belt of the chain conveyor 7. The two can alternately contact the back of the chain belt. Multiple semiconductor cooling chips 8061 are fixedly installed on the upper side inside the cooling tank plate 806, and a cooling aluminum shell 8062 is fixedly installed on the lower side. The cooling aluminum shell 8062 is filled with paraffin wax. An electric heating wire 8071 is fixedly installed on the upper side inside the heating tank plate 807, and its inner wall is coated with a ceramic heat insulation coating. The bottom of the conversion plate 803 is rotatably connected to the output end of two push telescopic rods 804. The fixed end of the push telescopic rod 804 is close to the corner of the bottom of the inner wall of the simulation shell 801, and the telescopic end is connected to the bottom of the conversion plate 803 near the edge. The top of the conversion plate 803 is fixedly installed with an arc-head start rod 808 below the heating tank plate 807 and the cooling tank plate 806. The inner wall of the simulation shell 801 is fixedly installed with normally open start switches 809 above the two arc-head start rods 808. The two normally open start switches 809 are used to control the start and stop of the semiconductor cooling chip 8061 and the electric heating wire 8071, respectively. When a cold environment needs to be simulated, the control terminal 6 commands the extension rod 804 to extend, driving the conversion plate 803 to rotate to one side around the connecting vertical block 802, raising the cooling tank plate 806 to a position close to the back of the chain conveyor 7. Simultaneously, the arc-shaped start rod 808 at the top of the conversion plate 803 moves upward with the conversion plate 803, touching the normally open start switch 809 installed at the corresponding position on the inner wall of the simulation shell 801. After the switch closes, the thermoelectric cooler 8061 starts working, and the cold end of the thermoelectric cooler 8061 will... The surface of the chain conveyor 7 is directly cooled, while the heating end of the semiconductor refrigeration chip 8061 is cooled and heat absorbed by the cooling aluminum shell 8062 and the internal paraffin. Paraffin phase change material is added to the heating end of the semiconductor refrigeration chip 8061. The heat absorption of the melting paraffin is used to suppress the instantaneous temperature peak, so that the temperature rise of the heating end is more gradual, thereby improving the cooling efficiency and device reliability. The coolant generated by the semiconductor refrigeration chip 8061 is used to conduct the low temperature to the contact surface of the walking wheel through the chain, so that the walking wheel can be tested for wear at low temperature.

[0025] When a hot environment needs to be simulated, the control terminal 6 commands the telescopic rod 804 to retract, driving the conversion plate 803 to rotate in the opposite direction, causing the heating slot plate 807 to rise to close contact with the back of the chain belt. At this time, the arc-head start rod 808 on the other side touches the corresponding normally open start switch 809, activating the electric heating wire 8071 to heat. The ceramic heat insulation coating reduces heat loss to the interior of the simulation shell 801, ensuring that the heat is concentrated and transferred to the chain belt, thereby enabling the walking wheel to undergo wear testing at high temperatures.

[0026] Since the cooling trough plate 806 and the heating trough plate 807 are rotatably connected to the conversion plate 803 via the connecting rod 805, when the conversion plate 803 rotates, the two sets of trough plates always maintain a vertically moving posture, which can bring them close to the back of the chain belt, thus ensuring heat exchange efficiency. Throughout the test, the vision inspection instrument 5 continuously monitors the wear changes of the walking wheel, and the control terminal 6 automatically records data such as test mileage, speed, temperature, pressure, and wear amount, and generates a test report. The above-mentioned test results are existing and mature, so this application will not elaborate further. When the vision inspection instrument 5 in this application is used, it will be used in conjunction with the simulation components 8. All the push telescopic rods 804 of the simulation components 8 are in the middle position, the conversion plate 803 is kept horizontal, at this time the cooling tank plate 806 and the heating tank plate 807 are not close to the lower surface of the chain belt of the chain conveyor 7, the normally open start switch 809 is in the off state, the semiconductor cooling chip 8061 and the electric heating wire 8071 are not working, the control terminal 6 reads the data of the simulated room temperature experiment, and the vision inspection instrument 5 continuously monitors the wear condition. When the output end of the telescopic rod 804 is extended, the conversion plate 803 rotates around the connecting vertical block 802 toward the cooling tank plate 806. During the rotation of the conversion plate 803, the arc-shaped starter rod 808 fixed on its top swings upward accordingly. When the top surface of the cooling tank plate 806 is close to the lower surface of the chain belt, the arc head start rod 808 touches and presses the normally open start switch 809 installed on the upper side of the inner wall of the simulation shell 801. The switch closes, connecting the power supply to the semiconductor cooling chip 8061. The semiconductor cooling chip 8061 starts to cool, and the refrigerant is conducted to the top surface of the cooling tank plate 806, and then transmitted to the contact surface of the walking wheel through the metal material of the chain belt. The control terminal 6 reads the data of the simulated low temperature experiment, and the vision inspection instrument 5 continuously monitors the wear condition. When the test time enters the high temperature stage, the control terminal 6 first commands the telescopic rod 804 to retract, causing the conversion plate 803 to rotate in the opposite direction, the cooling tank plate 806 to descend, the arc head starting rod 808 to disengage from the normally open starting switch 809, the semiconductor cooling chip 8061 to be de-energized, and at the same time, the arc head starting rod 808 on the other side rises with the conversion plate 803 and touches the normally open starting switch 809 controlling the electric heating wire 8071. The switch closes, and the electric heating wire 8071 is energized and heated. The ceramic heat-insulating coating on the inner wall of the heating tank plate 807 reduces heat loss to the interior of the simulation shell 801, and the heat is concentrated and transferred upward to the chain belt. The control terminal 6 reads the data of the simulated high-temperature experiment, and the vision inspection instrument 5 continuously monitors the wear. By simulating the experimental environment of normal temperature, low temperature and high temperature, the accuracy of the experimental data of luggage wheels can be guaranteed.

[0027] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. Any method that can achieve its beneficial effect can be implemented. In addition, the electrical components in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing disclosed power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.

Claims

1. An environmental simulation suitcase walking wheel abrasion test equipment, comprising an experimental tank plate (1) and a support frame (2) arranged on the top of the experimental tank plate (1), a fixing assembly (3) is arranged on the right side in the support frame (2), a plurality of clamping plates (4) are arranged on the surface of the support frame (2) above the experimental tank plate (1) and fastened by screws, a visual detector (5) is jointly clamped between every two corresponding clamping plates (4), and a control terminal (6) is arranged on the front side of the experimental tank plate (1). The experimental trough (1) is equipped with a chain conveyor (7), and a number of simulation components (8) are embedded in the lower side of the experimental trough (1) below the chain conveyor (7). The simulation component (8) includes a simulation shell (801) embedded in the lower side of the inner wall of the experimental tank plate (1). Connecting vertical blocks (802) are fixedly installed on opposite sides of the lower inner wall of the simulation shell (801). A conversion plate (803) is rotatably installed on the opposite sides of the two connecting vertical blocks (802). Two push telescopic rods (804) are provided on one side of the bottom of the simulation shell (801). A set of connecting rods (805) are respectively provided on the left and right sides of the top of the conversion plate (803). The upper end of the set of connecting rods (805) closer to the push telescopic rod (804) is rotatably installed with a cooling tank plate (806), and the upper end of the set of connecting rods (805) away from the push telescopic rod (804) is rotatably installed with a heating tank plate (807).

2. An environmental simulation suitcase wheel abrasion test apparatus according to claim 1, characterized in that: The support frame (2) is composed of several aluminum profile rods.

3. The environmental simulation luggage wheel wear test equipment according to claim 1, characterized in that: The fixing component (3) includes a connecting frame (301) that is slidably installed inside the support frame (2). Two first electric telescopic rods (302) are fixedly installed inside the support frame (2) on the rear side of the connecting frame (301). Adjusting blocks (303) are slidably installed on opposite sides of the inner wall of the connecting frame (301). A second electric telescopic rod (304) is fixedly installed on the upper side of the inner wall of the connecting frame (301). A hook (305) is fixedly installed on the side of the adjusting block (303) near the experimental tank plate (1), and an anti-detachment pressure block (306) is provided on the upper side of the hook (305).

4. The environmental simulation luggage wheel wear test equipment according to claim 3, characterized in that: The output ends of the two first electric telescopic rods (302) are fixedly connected to the surface of the connecting frame (301), the output end of the second electric telescopic rod (304) is fixedly connected to the top of the adjusting block (303), and corrugated plates (3031) are fixedly installed between the upper and lower surfaces of the adjusting block (303) and the connecting frame (301). The anti-detachment pressure block (306) is rotatably connected to the surface of the hook (305) through a rotary spring.

5. The environmental simulation luggage wheel wear test equipment according to claim 1, characterized in that: Protective plates (101) are fixedly installed on the front and back sides of the interior of the experimental trough (1). The protective plates (101) are located on one side of the chain conveyor (7). Reinforcing strips (102) are fixedly installed on the left and right sides of the inner wall of the experimental trough (1). The reinforcing strips (102) are located below the protective plates (101).

6. The environmental simulation luggage wheel wear test equipment according to claim 1, characterized in that: The chain conveyor (7) is made of aluminum alloy and has fixing holes (103). Multiple experimental protrusions (104) are provided on the front and rear sides of the top of the experimental trough plate (1). The end of one experimental protrusion (104) is arc-shaped, and the end of the other experimental protrusion (104) is pointed.

7. The environmental simulation luggage wheel wear test equipment according to claim 1, characterized in that: The output ends of the two push telescopic rods (804) are rotatably connected to one side of the bottom of the conversion plate (803), and the fixed end of the push telescopic rod (804) is located near the bottom corner of the inner wall of the simulation shell (801), and its telescopic end is connected to the bottom of the conversion plate (803) near the edge.

8. The environmental simulation luggage wheel wear test equipment according to claim 1, characterized in that: The number of connecting rods (805) in each group is four, which are equidistantly distributed on one side of the top of the conversion plate (803). The bottom of each connecting rod (805) is rotatably connected to the top of the conversion plate (803). The top surface of the cooling tank plate (806) and the top surface of the heating tank plate (807) extend through to the top surface of the simulation shell (801) and are located on the lower side of the chain conveyor (7).

9. The environmental simulation luggage wheel wear test equipment according to claim 1, characterized in that: A plurality of semiconductor cooling chips (8061) are fixedly installed on the upper side of the inner wall of the cooling tank plate (806), and a cooling aluminum shell (8062) is fixedly installed on the lower side of the plurality of semiconductor cooling chips (8061) on the inner wall of the cooling tank plate (806), and the interior of the cooling aluminum shell (8062) is filled with paraffin wax.

10. The environmental simulation luggage wheel wear test equipment according to claim 9, characterized in that: An electric heating wire (8071) is fixedly installed on the upper side of the inner wall of the heating tank plate (807), and the inner wall of the heating tank plate (807) is coated with a ceramic heat insulation coating. An arc-head start rod (808) is fixedly installed on the top of the conversion plate (803) below the heating tank plate (807) and the cooling tank plate (806). A normally open start switch (809) is fixedly installed on the inner wall of the simulation shell (801) above the two arc-head start rods (808).

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