Environment simulation bicycle belt pulley strength detection device based on temperature sensor

Abstract

The invention relates to the technical field of belt pulley detection, in particular to an environment simulation bicycle belt pulley strength detection device based on a temperature sensor. The device comprises a driving assembly, a detection assembly and a temperature sensing assembly. According to the invention, when the transmission structure drives the test piece to rotate, the test piece synchronously drives the connecting shaft to rotate, so that the connecting shaft drives the brake body to contact with or get away from the brake disc, and when the brake body contacts with the brake disc, the brake body applies pressure to the brake disc to increase the rotation resistance of the brake disc, namely the test piece, and simulates a climbing scene during riding; when the brake body is far away from the brake disc, the brake body does not apply pressure to the brake disc to reduce the rotation resistance of the test piece, a downhill scene during riding is simulated, the riding environment is simulated, and the temperature of the test piece is detected in real time through the temperature sensing assembly, so that the thermal stability and reliability of the test piece under high-strength operation are evaluated.

Description

Technical Field

[0001] The invention relates to the technical field of pulley detection, in particular to an environment simulation bicycle pulley strength detection device based on a temperature sensor. Background Art

[0002] ‌A bicycle pulley is a device that uses a belt instead of a chain to transmit power. Belt transmission uses a flexible belt wrapped between the chainring and the flywheel to form a closed loop path to transmit power. When the bicycle pulley is running, the vibration and noise are less than the chain, and it is lighter than the chain.‌ During the operation of a bicycle pulley, friction generates heat, which causes the temperature of the pulley and belt to rise. If the pulley teeth are worn (causing the contact surface to be uneven), loose, or otherwise faulty, friction will increase, generating more heat. In hot climates or long periods of high-intensity riding, the combined effect of ambient temperature and operating temperature will reduce the heat dissipation efficiency. If the heat generation rate of the pulley continues to be higher than the heat dissipation rate, heat will continue to accumulate, causing its temperature to rise and exceed the temperature resistance limit of the material, eventually causing the pulley to deform or break. Therefore, detecting the pulley temperature can effectively evaluate its thermal stability and reliability under high-intensity operation. Summary of the invention

[0003] The purpose of the present invention is to provide a device capable of simulating a riding environment and detecting the temperature when a bicycle pulley is running at high intensity.

[0004] The purpose of the present invention is to provide an environmental simulation bicycle pulley strength detection device based on a temperature sensor, which drives the pulley to operate continuously through a transmission structure to simulate the environment of long-term riding, and detects the temperature of the pulley in real time through a temperature sensor during the operation of the pulley, thereby evaluating the thermal stability and reliability of the pulley under high-intensity operation.

[0005] To achieve the above object, the present invention aims to provide an environmental simulation bicycle pulley strength detection device based on a temperature sensor, comprising a driving component, a detection component and a temperature sensing component, wherein the driving component comprises a simulation board and a transmission structure arranged on the simulation board; The detection component includes a fixed structure and a variable resistance structure, the fixed structure includes a fixed plate arranged on the simulation board and a test piece rotatably connected to the fixed plate, the transmission structure is used to drive the test piece to rotate, the variable resistance structure includes a connecting shaft and a brake body, the connecting shaft is coaxially connected to the test piece, the brake body is transmission-connected to the connecting shaft to apply pressure to the brake disc of the connecting shaft, and the temperature sensing component is used to detect the temperature of the test piece; The test piece synchronously drives the connecting shaft to rotate, so that the connecting shaft drives the brake body to contact or move away from the brake disc. When the brake body contacts the brake disc, the brake body applies pressure to the brake disc, increasing the rotational resistance of the test piece. When the brake body moves away from the brake disc, the rotational resistance of the test piece is reduced.

[0006] As a further improvement of the present technical solution, a spline shaft is rotatably connected in the fixed plate, one end of the spline shaft passes through the test piece and is key-connected to the test piece, and a locking shaft is provided at one end of the spline shaft, and an end cover for clamping the test piece is threadedly connected to the outer surface of the lock shaft, and the key connection is achieved by aligning the test piece with the spline shaft and clamping it into the spline shaft, thereby ensuring that the test piece is firmly mounted on the spline shaft to avoid falling off of the test piece.

[0007] As a further improvement of the present technical solution, the simulation board includes a detection plate and a movable plate arranged in the middle of the detection plate, a motor is arranged at one end of the top of the detection plate, a driving gear disc is rotatably connected to the top of the detection plate, the motor is transmission-connected to the driving gear disc through a coupling, a first belt is sleeved on the driving gear disc, the other end of the first belt is sleeved on the test piece, and a fixed plate is fixedly arranged on the top of the movable plate, wherein the movable plate is horizontally slidably connected to the detection plate, and a rotatably connected screw shaft is arranged in the middle of the detection plate, and one end of the screw shaft passes through the movable plate and is threadedly connected to the movable plate.

[0008] By rotating the screw shaft, the screw shaft drives the movable plate to slide to change the distance between the test piece and the driving sprocket, until the two ends of the first belt can be just put on the driving sprocket and the test piece respectively, thereby avoiding slippage between the driving sprocket, the test piece and the first belt.

[0009] As a further improvement of the present technical solution, the movable plate is provided with a movable groove running through the upper surface, and slide rails are arranged on both sides of the top of the movable groove. The brake body includes a connecting block and brake shoes arranged on the left and right sides of the brake disc, the connecting block is horizontally slidably connected to the inner wall of the movable groove, the bottom of both ends of the brake shoe is slidably connected to the slide rail, a reciprocating thread is arranged on the surface of the connecting shaft close to the spline shaft, and the reciprocating thread is threadedly connected to a reciprocating ring, the reciprocating ring is plugged into the connecting block, the connecting block is slidably connected to a first connecting frame, the first connecting frame is slidably connected to the inner wall of the movable groove up and down, the bottom of the brake shoe is slidably connected to the first connecting frame, and the rotation of the connecting shaft will drive the connecting block, and then drive the brake shoe to approach or move away from the brake disc, thereby achieving the effect of adjusting the rotational resistance of the test piece.

[0010] As a further improvement of the technical solution, the detection component further includes a air supply structure. The air supply structure includes an air cylinder disposed on the top of the movable plate and a wind blade rotatably connected to one end of the air cylinder. The interior of the air cylinder is hollow and the air cylinder is provided with an air outlet facing the air cylinder and the brake disc. The wind blade is used to blow air into the air cylinder. The wind blade is of an annular structure. One side of the wind blade is rotatably connected to the air cylinder. A fan blade is provided in the middle of the wind blade. A card slot is provided on the periphery of the wind blade. A end wheel with a clamping fit is provided on the side of the connecting shaft away from the test piece. A second belt is sleeved on the end wheel, and the other end of the second belt is stuck in the card slot.

[0011] So that air can enter the air cylinder and then be blown out from the air outlet to form wind, thereby dissipating heat from the test piece and the brake disc.

[0012] In addition, a plurality of air guide plates are rotatably connected inside the air outlet of the air cylinder, and a second connecting frame is rotatably connected to each of the plurality of air guide plates. The second connecting frame is in clamping fit with the reciprocating ring. The second connecting frame is provided with an extension plate, and the reciprocating ring is correspondingly provided with an end clamping plate in a "U" shape. The extension plate is in clamping fit with the groove of the end clamping plate.

[0013] The rotation of the wind blade is indirectly driven by the test piece, so that the rotation speed change of the wind blade is consistent with the rotation speed change of the test piece, that is, when the rotation speed of the test piece increases, the rotation speed of the wind blade increases, so that the amount of air blown into the air cylinder by the wind blade increases, and the air flow velocity blown out from the air outlet increases, increasing the heat dissipation effect on the test piece, which conforms to the situation that the faster the bicycle rides during actual riding, the faster the air flows, and improves the simulation effect of the riding environment.

[0014] In the present invention, when the transmission structure drives the test piece to rotate, the test piece synchronously drives the connecting shaft to rotate, so that the connecting shaft drives the brake body to contact or move away from the brake disc. When the brake body contacts the brake disc, the brake body applies pressure to the brake disc to increase the rotational resistance of the brake disc, that is, the test piece, imitating the climbing scenario during riding; when the brake body moves away from the brake disc, the brake body does not apply pressure to the brake disc to reduce the rotational resistance of the test piece, imitating the downhill scenario during riding, realizing the simulation of the riding environment, and the temperature of the test piece is detected in real time by the temperature sensing component, so as to evaluate the thermal stability and reliability of the test piece under high-intensity operation.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In the environmental simulation bicycle pulley strength detection device based on a temperature sensor, when the test piece rotates to drive the connecting shaft to rotate, the reciprocating ring is driven to move rightward along the connecting shaft, driving the connecting block to move rightward, and then driving the brake shoe to slide horizontally along the slide rail. The two brake shoes approach and press on the brake disc, so as to increase the friction force of the brake body on the brake disc. As the connecting shaft continues to rotate, the reciprocating ring moves leftward, and the leftward movement of the reciprocating ring drives the reset of the connecting block and the brake shoe, that is, the brake shoe moves away from the brake disc, reducing or eliminating the friction force on the brake disc, so that the rotational resistance of the test piece can be adjusted to simulate the riding environment. Combined with the temperature sensing component, the thermal stability and reliability of the test piece under high-intensity operation can be evaluated.

[0016] 2. In the environmental simulation bicycle pulley strength detection device based on a temperature sensor, the rotation of the test piece drives the connecting shaft to rotate, and then the end wheel drives the wind leaf to rotate through the second belt. The rotation of the wind leaf drives the external air to enter the air cylinder, and then blows out from the air outlet to dissipate heat from the test piece. By indirectly driving the rotation of the wind leaf through the test piece, the rotational speed change of the wind leaf is consistent with the rotational speed change of the test piece, that is, when the rotational speed of the test piece increases, the rotational speed of the wind leaf increases, increasing the amount of air blown into the air cylinder by the wind leaf. Then, the reciprocating ring drives the air guide plate to swing, thereby adjusting the direction of the air flow blown out from the air outlet, further improving the simulation effect of the riding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the overall structure of the present invention Figure 1 ; Figure 2 Schematic diagram of the overall structure of the present invention Figure 2 ; Figure 3 Schematic diagram of the structural cooperation between the driving component and the detection component of the present invention; Figure 4 Schematic diagram of the split of the fixing structure of the present invention; Figure 5 Schematic diagram of the cooperation between the movable table, the fixing structure and the variable resistance structure of the present invention Figure 1 ; Figure 6 Schematic diagram of the cooperation between the movable table, the fixing structure and the variable resistance structure of the present invention Figure 2 ; Figure 7 Schematic diagram of the movement of the brake body structure of the present invention; Figure 8 Schematic diagram of the cooperation between the variable resistance structure and the air supply structure of the present invention Figure 1 ; Figure 9 Schematic diagram of the cooperation between the variable resistance structure and the air supply structure of the present invention Figure 2 。

[0018] The meaning of each number in the figure is: 1. Driving assembly; 11. Detection plate; 12. Movable plate; 121. Movable slot; 122. Slide rail; 13. Screw shaft; 14. Motor; 15. Driving gear plate; 2. Detection assembly; 21. Fixed structure; 211. Fixed plate; 212. Spline shaft; 2121. Lock shaft; 213. Test piece; 214. End cover; 22. Variable resistance structure; 221. Connecting shaft; 2211. Reciprocating thread; 2212. Reciprocating ring; 2213. End clamp; 222. Brake disc; 223. Brake body; 2231. Connecting block; 2232. Connecting cylinder; 2233. First connecting frame; 2234. Brake shoe; 224. End wheel; 23. Air supply structure; 231. Air cylinder; 232. Fan blade; 233. Air guide plate; 234. Second connecting frame; 2341. Extension plate; 3. Temperature sensing component. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] See also Figure 1 , Figure 3 , Figure 4 , Figure 5As shown, the purpose of this embodiment is to provide an environmental simulation bicycle pulley strength detection device based on a temperature sensor, comprising a driving component 1 and a detection component 2 and a temperature sensing component 3 arranged on the driving component 1; The driving assembly 1 includes a simulation board and a transmission structure arranged on the simulation board; The detection component 2 includes a fixed structure 21 and a variable resistance structure 22 arranged on one side of the fixed structure 21. The fixed structure 21 includes a fixed plate 211 arranged on the simulation board and a test piece 213 rotatably connected to the fixed plate 211. The transmission structure is used to drive the test piece 213 to rotate. The variable resistance structure 22 includes a connecting shaft 221 and a brake body 223. The connecting shaft 221 is coaxially connected to the test piece 213. The brake body 223 is connected to the connecting shaft 221 in a transmission manner to apply pressure to the brake disc 222 on the connecting shaft 221. The temperature sensing component 3 is used to detect the temperature of the test piece 213 in real time. When the transmission structure drives the test piece 213 to rotate, the test piece 213 synchronously drives the connecting shaft 221 to rotate. The shaft 221 rotates so that the connecting shaft 221 drives the brake body 223 to contact or move away from the brake disc 222. When the brake body 223 contacts the brake disc 222, the brake body 223 applies pressure to the brake disc 222 to increase the rotational resistance of the brake disc 222, i.e., the test piece 213, to simulate a climbing scene during riding; when the brake body 223 moves away from the brake disc 222, the brake body 223 does not apply pressure to the brake disc 222 to reduce the rotational resistance of the test piece 213, to simulate a downhill scene during riding, to achieve a simulation of the riding environment, and to detect the temperature of the test piece 213 in real time through the temperature sensing component 3, so as to evaluate the thermal stability and reliability of the test piece 213 under high-intensity operation.

[0023] The above structure is disclosed as follows: First, the installation of the test piece 213 needs to be realized, such as Figure 3 , Figure 4 As shown, a spline shaft 212 is rotatably connected inside the fixing plate 211, one end of the spline shaft 212 passes through the test piece 213 and is key-connected to the test piece 213, and a locking shaft 2121 is provided at one end of the spline shaft 212, and an end cover 214 for clamping the test piece 213 is threadedly connected to the outer surface of the locking shaft 2121, that is, after the test piece 213 is aligned with the spline shaft 212 and clamped into the key connection, the end cover 214 is threadedly connected to the locking shaft 2121 to clamp the other side of the test piece 213, thereby ensuring that the test piece 213 is firmly mounted on the spline shaft 212 to avoid the test piece 213 from falling off.

[0024] After the installation of the test piece 213 is completed, a transmission connection with the test piece 213 is required, such as Figure 2As shown, the simulation board includes a detection plate 11 and a movable plate 12 arranged in the middle of the detection plate 11, a motor 14 is arranged at one end of the top of the detection plate 11, and a driving gear plate 15 is rotatably connected to the top of the detection plate 11. The motor 14 is connected to the driving gear plate 15 through a coupling, and the driving gear plate 15 is sleeved with a first belt. The other end of the first belt is sleeved on the test piece 213, and the fixed plate 211 is fixedly arranged on the top of the movable plate 12. It is worth noting that since the pulley has a variety of specifications, in order to ensure that both ends of the belt can be properly sleeved on the driving gear plate 15 and the test piece 213, so as to facilitate the motor 14 drives the test piece 213 to rotate by driving the toothed disc 15, the movable plate 12 is horizontally slidably connected to the detection plate 11, and a rotatably connected screw shaft 13 is provided in the middle of the detection plate 11, one end of the screw shaft 13 passes through the movable plate 12 and is threadedly connected to the movable plate 12, and by rotating the screw shaft 13, the screw shaft 13 drives the movable plate 12 to slide to change the distance between the test piece 213 and the driving toothed disc 15, until the two ends of the first belt can be just covered on the driving toothed disc 15 and the test piece 213 respectively, thereby avoiding slippage between the driving toothed disc 15, the test piece 213 and the first belt.

[0025] In the present invention, the motor 14 is used to simulate the leg pedaling force of the bicycle rider, driving the driving sprocket 15 to rotate and then driving the test piece 213 to rotate through the first belt, and the test piece 213 is connected to the connecting shaft 221 through the spline shaft 212. The connecting shaft 221 and the brake disc 222 arranged thereon are used to perform scene simulation. Specifically, when the test piece 213 rotates, the connecting shaft 221 is driven to rotate, and then the brake disc 222 is driven to rotate. The inertia of the brake disc 222 during rotation can simulate the rotation state of the rear wheel of the bicycle, and when the connecting shaft 221 rotates, the brake disc 222 can be driven to rotate. The moving body 223 contacts or moves away from the brake disc 222. When the brake body 223 contacts the brake disc 222, the brake body 223 applies pressure to the brake disc 222 to increase the friction of the brake body 223 on the brake disc 222, so as to increase the rotational resistance of the brake disc 222, which can simulate a climbing scene during riding; when the brake body 223 moves away from the brake disc 222, the brake body 223 does not apply pressure to the brake disc 222, and the friction of the brake body 223 on the brake disc 222 is reduced or disappears to reduce the rotational resistance of the test piece 213, thereby simulating a downhill scene during riding and achieving a simulation of the riding environment.

[0026] It should be noted that the temperature sensing component 3 includes a temperature sensor and a telescopic base for mounting the temperature sensor. The telescopic base is mounted on the movable plate 12, and the temperature sensor is a non-contact infrared thermometer. In the embodiment of the present invention, the UT300S series non-contact infrared thermometer is selected. By selecting a non-contact thermometer, during the rotation of the test piece 213, the temperature of the test piece 213 can be detected in real time by the temperature sensor on the premise of avoiding affecting the rotation of the test piece 213, so as to evaluate the thermal stability and reliability of the test piece 213 during high-intensity operation in the simulated riding environment.

[0027] The structure of the brake body 223 will be specifically disclosed as follows: As Figure 5 、 Figure 6 shown, the movable plate 12 is provided with a movable groove 121 penetrating the upper surface. Slide rails 122 are arranged on both sides of the top of the movable groove 121. The brake body 223 includes a connecting block 2231 and brake shoes 2234 arranged on the left and right sides of the brake disc 222. The connecting block 2231 is horizontally slidably connected to the inner wall of the movable groove 121. The bottom ends of the brake shoes 2234 are slidably connected to the slide rails 122. A reciprocating thread 2211 is arranged on the surface of the connecting shaft 221 near the spline shaft 212, and a reciprocating ring 2212 is threadedly connected to the reciprocating thread 2211. A plug rod is arranged on the surface of the reciprocating ring 2212. One end of the top of the connecting block 2231 is correspondingly provided with a connecting cylinder 2232. The bottom of the plug rod is inserted into the connecting cylinder 2232. The reciprocating ring 2212 is inserted and matched with the connecting block 2231 through the arranged plug rod and connecting cylinder 2232. The connecting block 2231 is provided with a plate groove penetrating the front and rear side surfaces. A Y-shaped first connecting frame 2233 is slidably connected in the plate groove. The first connecting frame 2233 is slidably connected to the inner wall of the movable groove 121 up and down. The middle part of the bottom of the brake shoe 2234 is slidably connected to the first connecting frame 2233 through a connecting rod arranged. The rotation of the connecting shaft 221 will drive the connecting block 2231, and then drive the brake shoes 2234 to approach or move away from the brake disc 222. Specifically, as Figure 7As shown, when the test piece 213 rotates to drive the connection shaft 221 to rotate, since the reciprocating ring 2212 is threadedly connected to the reciprocating thread 2211, the reciprocating ring 2212 located in the left region on the reciprocating thread 2211 is driven to move to the right along the connection shaft 221. The rightward movement of the reciprocating ring 2212 drives the connection block 2231 to move rightward along the inner wall of the movable slot 121, so that the first connection frame 2233 slidably connected to the plate slot of the connection block 2231 moves upward along the inner wall of the movable slot 121. The first connection frame 2233 further drives the brake shoe 2234 to slide horizontally along the slide rail 122. The two brake shoes 2234 approach and press on the brake disc 222 to increase the frictional force of the brake body 223 on the brake disc 222. As the connection shaft 221 continues to rotate, the reciprocating ring 2212 moving to the right region of the reciprocating thread 2211 moves to the left. The leftward movement of the reciprocating ring 2212 drives the reset of the connection block 2231, the first connection frame 2233, and the brake shoe 2234, that is, the brake shoe 2234 moves away from the brake disc 222, so that the frictional force on the brake disc 222 decreases or disappears, thereby achieving the effect of adjusting the rotational resistance of the test piece 213.

[0028] Considering that the wind formed by the air flow during bicycle riding can assist in heat dissipation, therefore, as Figure 3 , Figure 6 , Figure 8 shown, the detection assembly 2 further includes a air supply structure 23. The air supply structure 23 includes an air cylinder 231 provided on the top of the movable plate 12 and a wind blade 232 rotatably connected to one end of the air cylinder 231. The inside of the air cylinder 231 is hollow and the air cylinder 231 is provided with an air outlet facing the air cylinder 231 and the brake disc 222. The wind blade 232 is used to blow air into the air cylinder 231 so that the air can enter the air cylinder 231 and then be blown out from the air outlet to form wind, thereby dissipating heat from the test piece 213 and the brake disc 222.

[0029] Further, in the embodiment of the present invention, the wind blade 232 is in an annular structure. One side of the wind blade 232 is rotatably connected to the wind cylinder 231. A fan blade is arranged in the middle of the wind blade 232, and a clamping groove is arranged on the periphery of the wind blade 232. On the side of the connecting shaft 221 away from the test piece 213, there is an end wheel 224 with a clamping fit. A second belt is sleeved on the end wheel 224, and the other end of the second belt is stuck in the clamping groove. When the test piece 213 rotates, it drives the connecting shaft 221 to rotate, and further enables the end wheel 224 to drive the wind blade 232 to rotate through the second belt. When the wind blade 232 rotates, the fan blade arranged in the middle thereof can drive external air to enter the wind cylinder 231 and then be blown out from the air outlet to dissipate heat from the test piece 213. In the embodiment of the present invention, the rotation of the wind blade 232 is indirectly driven by the test piece 213, so that the rotation speed change of the wind blade 232 is consistent with the rotation speed change of the test piece 213, that is, when the rotation speed of the test piece 213 increases, the rotation speed of the wind blade 232 increases, so that the amount of air blown into the wind cylinder 231 by the wind blade 232 increases, and the air flow rate blown out from the air outlet increases, enhancing the heat dissipation effect on the test piece 213, which conforms to the situation that the faster the bicycle rides during actual cycling, the faster the air flows, and improves the simulation effect of the riding environment.

[0030] In addition, since there are changes in the wind direction during actual bicycle riding, that is, the air flow direction passing through the test piece 213 is variable. As Figure 9 shown, a plurality of air guide plates 233 are rotatably connected inside the air outlet of the wind cylinder 231, and a second connecting frame 234 is rotatably connected to each of the plurality of air guide plates 233. The second connecting frame 234 is in a clamping fit with the reciprocating ring 2212. Specifically, the second connecting frame 234 is provided with an extension plate 2341, and the reciprocating ring 2212 is correspondingly provided with an end clamping plate 2213 in a "U" shape structure. The extension plate 2341 is in a clamping fit with the groove of the end clamping plate 2213. Through the clamping fit method, when assembling the device, the second connecting frame 234 can be conveniently connected to the reciprocating ring 2212. When the test piece 213 drives the connecting shaft 221 to rotate, when the reciprocating ring 2212 reciprocates along the reciprocating thread 2211, the reciprocating ring 2212 can drive the air guide plate 233 to swing through the second connecting frame 234, thereby adjusting the air flow direction blown out from the air outlet and further improving the simulation effect of the riding environment.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmental simulation bicycle pulley strength detection device based on a temperature sensor, comprising a driving component (1), a detection component (2) and a temperature sensing component (3), characterized in that: The driving component (1) includes an analog board and a transmission structure disposed on the analog board; The detection component (2) includes a fixing structure (21) and a variable resistance structure (22). The fixing structure (21) includes a fixing plate (211) disposed on the analog board and a test piece (213) rotatably connected to the fixing plate (211). The transmission structure is used to drive the test piece (213) to rotate. The variable resistance structure (22) includes a connecting shaft (221) and a braking body (223). The connecting shaft (221) is coaxially connected to the test piece (213), and the braking body (223) is drivingly connected to the connecting shaft (221) to apply pressure to the brake disc (222) of the connecting shaft (221). The temperature sensing component (3) is used to detect the temperature of the test piece (213); The test piece (213) synchronously drives the connecting shaft (221) to rotate, so that the connecting shaft (221) drives the braking body (223) to contact or move away from the brake disc (222). When the braking body (223) contacts the brake disc (222), the braking body (223) applies pressure to the brake disc (222), increasing the rotational resistance of the test piece (213). When the braking body (223) moves away from the brake disc (222), the rotational resistance of the test piece (213) is reduced.

2. The environmental simulation bicycle pulley strength detection device based on a temperature sensor according to claim 1, wherein: A spline shaft (212) is rotatably connected inside the fixing plate (211). One end of the spline shaft (212) passes through the test piece (213) and is key-connected to the test piece (213). And a locking shaft (2121) is provided at one end of the spline shaft (212). An end cap (214) for clamping the test piece (213) is threadedly connected to the outer surface of the locking shaft (2121).

3. The environmental simulation bicycle pulley strength detection device based on a temperature sensor according to claim 2, characterized in that: The analog board includes a detection board (11) and a movable board (12) disposed in the middle of the detection board (11). A motor (14) is provided at one end of the top of the detection board (11). A driving gear disk (15) is rotatably connected to the top of the detection board (11). The motor (14) is drivingly connected to the driving gear disk (15) through a coupling. The driving gear disk (15) is sleeved with a first belt, and the other end of the first belt is sleeved on the test piece (213). The fixing plate (211) is fixedly disposed on the top of the movable board (12).

4. The environmental simulation bicycle pulley strength detection device based on a temperature sensor according to claim 3, characterized in that: The movable board (12) is provided with a movable groove (121) penetrating the upper surface. Slide rails (122) are provided on both sides of the top of the movable groove (121). The braking body (223) includes a connecting block (2231) and brake shoes (2234) disposed on the left and right sides of the brake disc (222). The connecting block (2231) is horizontally slidably connected to the inner wall of the movable groove (121). The bottoms of both ends of the brake shoes (2234) are slidably connected to the slide rails (122). A reciprocating thread (2211) is provided on the surface of the connecting shaft (221) near the spline shaft (212), and a reciprocating ring (2212) is threadedly connected to the reciprocating thread (2211). The reciprocating ring (2212) is inserted and matched with the connecting block (2231). The connecting block (2231) is slidably connected to a first connecting frame (2233). The first connecting frame (2233) is vertically slidably connected to the inner wall of the movable groove (121). The bottom of the brake shoe (2234) is slidably connected to the first connecting frame (2233).

5. The environmental simulation bicycle pulley strength detection device based on a temperature sensor according to claim 4, characterized in that: The detection component (2) further includes a air supply structure (23). The air supply structure (23) includes an air cylinder (231) disposed on the top of the movable plate (12) and a wind blade (232) rotatably connected to one end of the air cylinder (231). The interior of the air cylinder (231) is hollow and the air cylinder (231) is provided with an air outlet facing the air cylinder (231) and the brake disc (222). The wind blade (232) is used to blow air into the air cylinder (231).

6. The environmental simulation bicycle pulley strength detection device based on a temperature sensor according to claim 5, characterized in that: The wind blade (232) is of an annular structure. One side of the wind blade (232) is rotatably connected to the air cylinder (231). A fan blade is arranged in the middle of the wind blade (232). A clamping groove is arranged on the periphery of the wind blade (232). A terminal wheel (224) with a clamping fit is arranged on the side of the connecting shaft (221) away from the test piece (213). A second belt is sleeved on the terminal wheel (224), and the other end of the second belt is clamped in the clamping groove.

7. The environmental simulation bicycle pulley strength detection device based on a temperature sensor according to claim 6, characterized in that: A plurality of air guide plates (233) are rotatably connected inside the air outlet of the air cylinder (231), and a plurality of air guide plates (233) are all rotatably connected with a second connecting frame (234). The second connecting frame (234) is in clamping fit with the reciprocating ring (2212).

8. The environmental simulation bicycle pulley strength detection device based on a temperature sensor according to claim 7, characterized in that: The second connecting frame (234) is provided with an extension plate (2341), and the reciprocating ring (2212) is correspondingly provided with an end clamping plate (2213) in a "U" - shaped structure. The extension plate (2341) is in clamping fit with the groove of the end clamping plate (2213).

9. The environmental simulation bicycle pulley strength detection device based on a temperature sensor according to claim 3, characterized in that: The movable plate (12) is horizontally slidably connected to the detection plate (11). A screw shaft (13) rotatably connected is arranged in the middle of the detection plate (11). One end of the screw shaft (13) passes through the movable plate (12) and is threadedly connected to the movable plate (12).

10. The environmental simulation bicycle pulley strength detection device based on a temperature sensor according to claim 1, characterized in that: The temperature sensing component (3) includes a temperature sensor and a telescopic base for installing the temperature sensor. The telescopic base is installed on the movable plate (12), and the temperature sensor is a non - contact infrared thermometer.

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