An automatic purging system for accumulated water on the wheel surface

Abstract

The present invention belongs to the technical field of wheel purging, and provides an automatic purging system for accumulated water on the wheel surface, which includes a hanging rod and a hanging chain that moves along the hanging rod and is used for hanging the wheel. The system further includes a purging mechanism and a trigger plate arranged on the hanging chain. The purging mechanism includes an air knife for purging the wheel, a rotating mechanism for driving the air knife to rotate, and a moving mechanism for driving the air knife to move. This system can simulate manual purging actions and cooperate with the hanging chain to automatically purge the accumulated water on the wheel surface instead of manual labor. Through modular design, the mechanism is relatively independent of the hanging chain and operates synchronously, fully realizing unmanned production. It significantly reduces the safety and occupational health risks and reduces the labor cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of wheel purging, and particularly relates to an automatic purging system for accumulated water on the wheel surface. Background Art

[0002] The primer coating line uses the cathodic electrophoresis process. After the wheel products pass through the electrophoresis line on the hanging fixtures, they need to go through processes such as pure water washing. Water (liquid) accumulates in the inner side of the wheel rim and the gap between the wheel rim and the wheel spoke. After the wheels enter the drying process, the accumulated water in these parts gradually evaporates under high temperature conditions, resulting in appearance defects such as water marks and floating paint.

[0003] In the prior art, in order to prevent appearance defects, an artificial purging station is set between the pure water washing process and the drying process in the coating industry. An air gun of compressed air is manually operated to purge the accumulated water on the wheel surface. However, this operation has high noise, high environmental humidity, and generally accompanied by drying waste gas and other harmful gases. There are occupational health and safety risks such as noise-induced deafness, acute poisoning, and heat stroke, and the labor cost is relatively high. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides an automatic purging system for accumulated water on the wheel surface, which can simulate the manual purging action and cooperate with the hanging chain to automatically purge the accumulated water on the wheel surface instead of manual labor.

[0005] To achieve the above object, the present invention adopts the following technical solutions: An automatic purging system for accumulated water on the wheel surface, including a hanging rod, a hanging chain for hanging wheels moving along the hanging rod, and further includes a purging mechanism and a trigger plate arranged on the hanging chain. The purging mechanism includes an air knife for purging the wheels, a rotating mechanism for driving the air knife to rotate, and a moving mechanism for driving the air knife to move;

[0006] The rotating mechanism includes a mounting frame, a rotating shaft, a support, and a first servo motor. The air knife is fixedly installed on the mounting frame. One end of the rotating shaft is fixedly connected to the mounting frame, and the other end of the rotating shaft is rotatably inserted into the support. The rotating shaft is parallel to the axial direction of the wheel. The first servo motor is fixedly installed on the support, and the first servo motor is used to drive the rotating shaft to rotate;

[0007] The moving mechanism includes a second slide plate, a trigger photoelectric switch, and a second driving mechanism. The trigger photoelectric switch and the support are both fixedly arranged on the second slide plate. The second driving mechanism is used to drive the second slide plate to move along the direction of the hanging chain;

[0008] The trigger photoelectric switch is electrically connected to the second driving mechanism and the first servo motor respectively.

[0009] Preferably, the second driving mechanism includes a second servo motor, a lead screw, a lead screw nut, and a second slide rail. The power output end of the second servo motor is fixedly connected to the lead screw. The lead screw nut is screwed onto the lead screw. The lead screw nut is fixedly connected to the second slide plate. The second slide plate is slidably engaged with the second slide rail. The sliding direction of the second slide rail is parallel to the moving direction of the hanging chain.

[0010] Preferably, the system further includes a detection mechanism and a third driving mechanism for driving the air knife to approach or move away from the wheel.

[0011] The detection mechanism includes a detection support, a cylinder, a floating frame, a laser measurement photoelectric switch, a reflector, an electronic ruler, and a trigger detection photoelectric switch. The cylinder is fixedly installed on the detection support. The power output end of the cylinder is fixedly connected to the floating frame. The laser measurement photoelectric switch and the reflector are both installed on the floating frame. The laser measurement photoelectric switch and the reflector are arranged opposite to each other. The laser measurement photoelectric switch and the reflector are respectively arranged on the upper and lower sides of the wheel. The electronic ruler is used to measure the moving distance of the floating frame. The trigger detection photoelectric switch is fixedly installed on the detection support. The trigger detection photoelectric switch and the laser measurement photoelectric switch are both electrically connected to the cylinder.

[0012] Preferably, the third driving mechanism includes a third servo motor, a gear, a rack, a third slide rail, and a third slide plate. The gear is sleeved outside the power output end of the third servo motor. The rack is fixedly installed on the second slide plate. The gear is engaged with the rack. The third slide rail is fixedly installed on the second slide plate. The third slide plate is slidably engaged with the third slide rail. The rack is arranged parallel to the third slide rail. The third servo motor and the support are both fixedly installed on the third slide plate.

[0013] Preferably, the detection mechanism further includes a PLC. The electronic ruler is electrically connected to the PLC. The PLC is electrically connected to the third servo motor.

[0014] Preferably, the moving mechanism includes at least two of the trigger photoelectric switches. The distance between the two trigger photoelectric switches in the direction along the hanging rod is less than the width of the trigger plate. The two trigger photoelectric switches are both electrically connected to the PLC. The PLC is electrically connected to the second servo motor.

[0015] Preferably, the detection mechanism further includes a fourth slide rail and a fourth slide plate. The fourth slide rail is fixedly installed on the detection support. The fourth slide plate is slidably engaged with the fourth slide rail. The floating frame is fixedly installed on the fourth slide plate. The fourth slide plate is fixedly connected to the power output end of the cylinder.

[0016] Preferably, the system further includes a ground rail that slidably cooperates with the bottom end of the hanging chain, and the ground rail is arranged directly below the hanging rod.

[0017] Preferably, a guiding plate is provided at the inlet end of the ground rail.

[0018] Preferably, a first transmission wheel is sleeved outside the power output end of the first servo motor, a second transmission wheel is sleeved outside the rotating shaft, and the first transmission wheel is in transmission connection with the second transmission wheel.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. An automatic purging system for accumulated water on the wheel surface provided by the present invention can simulate the manual purging action and cooperate with the hanging chain to automatically purge the accumulated water on the wheel surface instead of manual labor.

[0021] 2. An automatic purging system for accumulated water on the wheel surface provided by the present invention, through modular design, the mechanism is relatively independent of the hanging chain and operates synchronously, fully realizing unmanned production. Significantly reducing the safety and occupational health risks and reducing the labor cost. Description of the Drawings

[0022] Figure 1 is a three-dimensional structural schematic diagram of an automatic purging system for accumulated water on the wheel surface provided by an embodiment of the present invention;

[0023] Figure 2 is a side structural schematic diagram of the purging mechanism of an automatic purging system for accumulated water on the wheel surface provided by an embodiment of the present invention;

[0024] Figure 3 is a partial three-dimensional structural schematic diagram of the purging mechanism of an automatic purging system for accumulated water on the wheel surface provided by an embodiment of the present invention;

[0025] Figure 4 is a side structural schematic diagram of the detection mechanism of an automatic purging system for accumulated water on the wheel surface provided by an embodiment of the present invention;

[0026] Figure 5 is a partial three-dimensional structural schematic diagram of the third driving mechanism of an automatic purging system for accumulated water on the wheel surface provided by an embodiment of the present invention;

[0027] Figure 6 is a partial three-dimensional structural schematic diagram of the purging mechanism of an automatic purging system for accumulated water on the wheel surface provided by an embodiment of the present invention;

[0028] Figure 7 is a front structural schematic diagram of the relevant part of the hanging rod of an automatic purging system for accumulated water on the wheel surface provided by an embodiment of the present invention.

[0029] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0030] 1. Hanging rod; 2. Hanging chain; 3. Blowing mechanism; 5. Detection mechanism; 7. Ground rail; 8. Guide plate; 201. Trigger plate; 301. Air knife; 302. Mounting bracket; 303. Rotating shaft; 304. Support; 305. First servo motor; 306. First driving wheel; 307. Second driving wheel; 401. Second servo motor; 402. Lead screw; 403. Lead screw nut; 404. Second slide rail; 405. Second slide plate; 406. Trigger photoelectric switch; 501. Detection support; 502. Cylinder; 503. Floating frame; 504. Laser measurement photoelectric switch; 505. Reflector; 506. Electronic ruler; 507. Trigger detection photoelectric switch; 508. Fourth slide rail; 509. Fourth slide plate; 601. Third servo motor; 602. Gear; 603. Rack; 604. Third slide rail; 605. Third slide plate. Specific embodiments

[0031] The present invention will be further described in detail below with reference to specific embodiments, so that those skilled in the art can understand the present invention more clearly.

[0032] It should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" in the terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrally formed structure. For those of ordinary skill in the art, the specific meanings of such terms in this patent can be understood according to specific situations.

[0033] Since moisture is likely to remain in the grooves on the side of the wheel, especially on the lower half of the wheel side. Therefore, in the prior art, when manually blowing the wheel, it is often through manual operation of a compressed air gun to blow the side grooves of the wheel to dry the moisture remaining in the grooves on the wheel surface.

[0034] Based on the above blowing method, in order to achieve automatic blowing of the wheel. This embodiment provides an automatic blowing system for wheel surface water accumulation.

[0035] As Figure 1 shown, the blowing system provided in this embodiment includes a hanging rod 1, a hanging chain 2 for hanging the wheel and moving along the hanging rod 1, and further includes a blowing mechanism 3 and a trigger plate 201 provided on the hanging chain 2. The blowing mechanism 3 includes an air knife 301 for blowing the wheel, a rotating mechanism for driving the air knife 301 to rotate, and a moving mechanism for driving the air knife 301 to move.

[0036] In this embodiment, along the moving direction of the hanging chain 2, two of the purging mechanisms 3 may be sequentially provided to purge the wheels twice, and the purging positions of the two purging mechanisms 3 may be different. For example, the first purging mechanism 3 is mainly used to purge the entire side surface of the wheel, and the second purging mechanism 3 is mainly used to purge the position where water is likely to accumulate in the lower half of the wheel, so as to ensure that the wheel is fully purged clean.

[0037] Specifically, as Figure 2 shown, the rotating mechanism includes a mounting bracket 302, a rotating shaft 303, a support 304, and a first servo motor 305. The air knife 301 is fixedly installed on the mounting bracket 302. One end of the rotating shaft 303 is fixedly connected to the mounting bracket 302, and the other end of the rotating shaft 303 is rotatably inserted into the support 304. The rotating shaft 303 is parallel to the axial direction of the wheel. The first servo motor 305 is fixedly installed on the support 304, and the first servo motor 305 is used to drive the rotating shaft 303 to rotate.

[0038] In order to achieve a relatively large wind force, the purging area of the air knife 301 is usually small. Therefore, during the purging process, it is necessary to rotate the air knife 301 to purge the side surface of the wheel comprehensively. For example, when the hanging chain 2 moves to the purging mechanism 3, the rotating shaft 303 is coaxial with the wheel, and the air knife 301 can just face the bottom of the side surface of the wheel. Then, the first servo motor 305 is used to drive the rotating shaft 303 to rotate, thereby driving the mounting bracket 302 to rotate, so that the air knife 301 swings around the center of the wheel. In this way, the air knife 301 can swing along the outer circle of the wheel, and the air knife 301 can purge the entire side surface of the wheel, with high efficiency and good purging effect. Among them, by adjusting the rotation angle of the power output end of the first servo motor 305, the swing angle of the air knife 301 can be adjusted, and then the purging range of the wheel can be adjusted to achieve the purpose of purging different areas of the wheel.

[0039] Among them, a first transmission wheel 306 is sleeved outside the power output end of the first servo motor 305, a second transmission wheel 307 is sleeved outside the rotating shaft 303, and the first transmission wheel 306 is in transmission connection with the second transmission wheel 307.

[0040] By driving the first transmission wheel 306 to rotate through the first servo motor 305, the second transmission wheel 307 can be driven to rotate, and then the rotating shaft 303 can be driven to rotate.

[0041] In this embodiment, three wheels can be hung on each hanging chain 2, and the three wheels are at different height positions. Correspondingly, three sets of the rotating shafts 303 are provided on the support 304, and each set of the rotating shafts 303 is connected to one air knife 301. A second transmission wheel 307 is sleeved outside each set of the rotating shafts 303, and the first transmission wheel 306 is simultaneously in transmission connection with the three second transmission wheels 307. In this way, by means of one first servo motor 305, the three air knives 301 can be driven to rotate, and the purging of the three wheels can be completed simultaneously, with higher efficiency.

[0042] Since the hanging chain 2 is in a continuous moving state, it is necessary to synchronously move the purging mechanism 3 with the wheels, and the air knife 301 can swing and purge along the outer circumference of the wheels all the time, so as to ensure continuous purging of the side surfaces of the wheels. Therefore, in this embodiment, the moving mechanism is used to drive the purging mechanism 3 to move synchronously with the wheels.

[0043] Among them, as Figure 3 shown, the moving mechanism includes a second sliding plate 405, a trigger photoelectric switch 406, and a second driving mechanism. The trigger photoelectric switch 406 and the support 304 are both fixedly arranged on the second sliding plate 405, and the second driving mechanism is used to drive the second sliding plate 405 to move along the direction of the hanging chain 2.

[0044] The second driving mechanism can drive the second sliding plate 405 to move along the direction of the hanging chain 2, and further drive the support 304 to move along the direction of the hanging chain 2. By adjusting the moving speed of the second driving mechanism, the support 304 can be made to move at the same speed as the wheels, and further the air knife 301 can be made to move at the same speed as the wheels.

[0045] The trigger photoelectric switch 406 is electrically connected to the second driving mechanism and the first servo motor 305 respectively.

[0046] The trigger photoelectric switch 406 is used to detect whether a wheel passes by. When the trigger photoelectric switch 406 detects the trigger plate 201, it means that a wheel has passed by. At this time, the second driving mechanism can be started to drive the second slide plate 405 to move synchronously with the wheel, so that the air knife 301 moves at the same speed as the wheel. Then the air knife 301 is turned on, and the air knife 301 continuously blows the side of the wheel. Then the first servo motor 305 is started, and the power output end of the first servo motor 305 drives the air knife 301 to blow the wheel repeatedly in the circumferential direction according to the preset rotation angle, reciprocation times, and rotation speed. After the second slide plate 405 moves to a certain position and stops, the blowing of the wheel is completed. Then the second driving mechanism makes the second slide plate 405 return to the initial position. At the same time, the first servo motor 305 also returns to the initial position, waiting for the next wheel to pass by here.

[0047] Specifically, as Figure 4 shown, the second driving mechanism includes a second servo motor 401, a lead screw 402, a lead screw nut 403, and a second slide rail 404. The power output end of the second servo motor 401 is fixedly connected to the lead screw 402. The lead screw nut 403 is screwed with the lead screw 402. The lead screw nut 403 is fixedly connected to the second slide plate 405. The second slide plate 405 is slidably matched with the second slide rail 404. The sliding direction of the second slide rail 404 is parallel to the moving direction of the hanging chain 2.

[0048] The second servo motor 401 can drive the lead screw 402 to rotate, drive the lead screw nut 403 to slide along the lead screw 402, and then drive the second slide plate 405 to slide. And the sliding direction of the second slide plate 405 is parallel to the moving direction of the hanging chain 2. In this way, by controlling the rotation speed of the power output end of the second servo motor 401, the sliding speed of the second slide plate 405 can be controlled, so that the sliding speed of the second slide plate 405 is the same as the moving speed of the wheel, and the air knife 301 can be made to move synchronously with the wheel.

[0049] In addition, due to the different thicknesses of the wheels, the spacing distances between the air knife 301 and the wheels are different, resulting in different blowing effects. Moreover, when the wheel width is large or the wheel is tilted, the air knife 301 may contact the wheel, resulting in the failure of blowing.

[0050] To avoid the above situation, the distance between the wheel and the mechanism can be measured before blowing. After measuring the distance, the position of the air knife 301 can be adjusted according to the measured distance. Therefore, in this embodiment, the system further includes a detection mechanism 5 and a third driving mechanism for driving the air knife 301 to approach or move away from the wheel;

[0051] AsFigure 5 As shown in the figure, the detection mechanism 5 includes a detection support 501, a cylinder 502, a floating frame 503, a laser measurement photoelectric switch 504, a reflector 505, an electronic ruler 506, and a trigger detection photoelectric switch 507. The cylinder 502 is fixedly installed on the detection support 501. The power output end of the cylinder 502 is fixedly connected to the floating frame 503. The laser measurement photoelectric switch 504 and the reflector 505 are both installed on the floating frame 503. The laser measurement photoelectric switch 504 and the reflector 505 are arranged opposite to each other. The laser measurement photoelectric switch 504 and the reflector 505 are respectively arranged on the upper and lower sides of the wheel. The electronic ruler 506 is used to measure the moving distance of the floating frame 503. The trigger detection photoelectric switch 507 is fixedly installed on the detection support 501. The trigger detection photoelectric switch 507 and the laser measurement photoelectric switch 504 are both electrically connected to the cylinder 502.

[0052] The trigger detection photoelectric switch 507 is used to detect whether a wheel passes by. When the trigger detection photoelectric switch 507 detects the trigger plate 201, it means that a wheel has passed by. At this time, the cylinder 502 is started, and the laser measurement photoelectric switch 504 and the reflector 505 are respectively located on the upper and lower sides of the wheel. The cylinder 502 drives the floating frame 503 to approach the wheel until the vertical light between the laser measurement photoelectric switch 504 and the reflector 505 is blocked by the wheel. At this time, the moving distance of the floating frame 503 towards the wheel is the distance between the wheel and the detection mechanism 5, and the electronic ruler 506 can read out this distance. Then the cylinder 502 drives the floating frame 503 to return to the initial position and waits for the next wheel to arrive.

[0053] In this embodiment, the distance between the wheel and the detection mechanism 5 can be equal to the distance between the wheel and the purging mechanism 3. In this way, the distance read by the electronic ruler 506 is the distance between the purging mechanism 3 and the wheel. Based on this, it can be judged whether the third driving mechanism needs to adjust the distance between the air knife 301 and the wheel. When the distance between the purging mechanism 3 and the wheel is too large, the air knife 301 can be driven to approach the wheel; when the distance between the purging mechanism 3 and the wheel is too small, the air knife 301 can be driven to move away from the wheel.

[0054] Among them, the detection mechanism 5 further includes a fourth slide rail 508 and a fourth slide plate 509. The fourth slide rail 508 is fixedly installed on the detection support 501. The fourth slide plate 509 is slidably matched with the fourth slide rail 508. The floating frame 503 is fixedly installed on the fourth slide plate 509. The fourth slide plate 509 is fixedly connected to the power output end of the cylinder 502.

[0055] When the cylinder 502 drives the floating frame 503 to approach or move away from the wheel, it can drive the fourth slide plate 509 to slide on the fourth slide rail 508, making the movement of the floating frame 503 more stable and the distance measured by the electronic ruler 506 more accurate.

[0056] Specifically, as Figure 5-6 shown, the third driving mechanism includes a third servo motor 601, a gear 602, a rack 603, a third slide rail 604, and a third slide plate 605. The gear 602 is sleeved outside the power output end of the third servo motor 601. The rack 603 is fixedly installed on the second slide plate 405. The gear 602 meshes with the rack 603. The third slide rail 604 is fixedly installed on the second slide plate 405. The third slide plate 605 is slidably matched with the third slide rail 604. The third servo motor 601 and the support 304 are both fixedly installed on the third slide plate 605.

[0057] The third servo motor 601 can drive the gear 602 to rotate. Since the gear 602 meshes with the rack 603 and the rack 603 is arranged parallel to the third slide rail 604, the third servo motor 601 can move along the rack 603, thereby driving the third slide plate 605 to slide along the third slide rail 604. Further, it drives the support 304 to slide along the third slide rail 604. The sliding direction of the third slide rail 604 can be perpendicular to the moving direction of the wheel. When the support 304 gradually approaches the wheel, it can drive the air knife 301 to approach the wheel.

[0058] In order to automatically adjust the distance between the air knife 301 and the wheel, in this embodiment, the detection mechanism 5 further includes a PLC. The electronic ruler 506 is electrically connected to the PLC, and the PLC is electrically connected to the third servo motor 601. The PLC can extract the current dimension of the electronic ruler 506, store the data in the cache queue, and then transmit it to the third servo motor 601. The third servo motor 601 can then adjust the position of the air knife 301 for each wheel.

[0059] In this embodiment, as Figure 7 shown, the moving mechanism includes at least two trigger photoelectric switches 406. The two trigger photoelectric switches 406 are spaced apart in the direction along the hanging rod 1 by a distance slightly less than the width of the trigger plate 201. The two trigger photoelectric switches 406 are both electrically connected to the PLC, and the PLC is electrically connected to the second servo motor 401.

[0060] When both of the trigger photoelectric switches 406 can detect the trigger plate 201, at this time the wheel reaches the air knife 301, and then the air knife 301 is driven to move along with the wheel. In order to ensure that the moving speed of the air knife 301 is the same as that of the wheel, during the moving process, it is always ensured that both of the trigger photoelectric switches 406 can detect the trigger plate 201 simultaneously, that is, the trigger plate 201 does not break away from the two trigger photoelectric switches 406, which can ensure that the moving speeds of the wheel and the air knife 301 are the same. If one of the trigger photoelectric switches 406 fails to detect the trigger plate 201, the information can be transmitted to the PLC, and then the PLC can adjust the rotating speed of the second servo motor 401 to adjust the moving speed of the trigger photoelectric switch 406, so that both of the trigger photoelectric switches 406 can detect the trigger plate 201 simultaneously, thereby making the moving speeds of the wheel and the air knife 301 the same.

[0061] Finally, please refer to Figure 1 again. In order to prevent the hanging chain 2 from shaking, in this embodiment, the system further includes a ground rail 7 that is slidably engaged with the bottom end of the hanging chain 2, and the ground rail 7 is arranged directly below the hanging rod 1. The sliding engagement between the bottom end of the hanging chain 2 and the ground rail 7 can ensure the stability of the hanging chain 2 during movement.

[0062] Wherein, a guide plate 8 is provided at the entrance end of the ground rail 7. The arrangement of the guide plate 8 is beneficial to the bottom end of the hanging chain 2 sliding into the ground rail 7.

[0063] In summary, an automatic purging system for wheel surface water provided in this embodiment can simulate the manual purging action and cooperate with the hanging chain to automatically purge the water on the wheel surface instead of manual labor.

[0064] The mechanisms, components, and parts that are not described in detail in the specific structure in the present invention are all existing structures that already exist in the prior art and can be directly purchased from the market.

[0065] The above are only the preferred implementation schemes of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automatic purging system for accumulated water on the surface of a wheel, comprising a hanging rod (1) and a hanging chain (2) that moves along the hanging rod (1) and is used for hanging and buckling the wheel. Characterized in that, it further comprises a purging mechanism (3) and a trigger plate (201) arranged on the hanging chain (2). The purging mechanism (3) comprises an air knife (301) for purging the wheel, a rotating mechanism for driving the air knife (301) to rotate, and a moving mechanism for driving the air knife (301) to move; The rotating mechanism comprises a mounting frame (302), a rotating shaft (303), a support (304), and a first servo motor (305). The air knife (301) is fixedly installed on the mounting frame (302). One end of the rotating shaft (303) is fixedly connected to the mounting frame (302), and the other end of the rotating shaft (303) is rotatably inserted on the support (304). The rotating shaft (303) is parallel to the axial direction of the wheel. The first servo motor (305) is fixedly installed on the support (304), and the first servo motor (305) is used for driving the rotating shaft (303) to rotate; The moving mechanism comprises a second sliding plate (405), a trigger photoelectric switch (406), and a second driving mechanism. The trigger photoelectric switch (406) and the support (304) are both fixedly arranged on the second sliding plate (405), and the second driving mechanism is used for driving the second sliding plate (405) to move along the direction of the hanging chain (2); The trigger photoelectric switch (406) is electrically connected to the second driving mechanism and the first servo motor (305) respectively; The system further comprises a detection mechanism (5) and a third driving mechanism for driving the air knife (301) to approach or move away from the wheel; The detection mechanism (5) comprises a detection support (501), a cylinder (502), a floating frame (503), a laser measurement photoelectric switch (504), a reflector (505), an electronic ruler (506), and a trigger detection photoelectric switch (507). The cylinder (502) is fixedly installed on the detection support (501), and the power output end of the cylinder (502) is fixedly connected to the floating frame (503). The laser measurement photoelectric switch (504) and the reflector (505) are both installed on the floating frame (503). The laser measurement photoelectric switch (504) and the reflector (505) are arranged opposite to each other. The laser measurement photoelectric switch (504) and the reflector (505) are respectively arranged on the upper and lower sides of the wheel. The electronic ruler (506) is used for measuring the moving distance of the floating frame (503). The trigger detection photoelectric switch (507) is fixedly installed on the detection support (501), and the trigger detection photoelectric switch (507) and the laser measurement photoelectric switch (504) are both electrically connected to the cylinder (502).

2. An automatic purging system for accumulated water on the surface of a wheel according to claim 1, Characterized in that, The second driving mechanism includes a second servo motor (401), a lead screw (402), a lead screw nut (403), and a second slide rail (404). The power output end of the second servo motor (401) is fixedly connected to the lead screw (402). The lead screw nut (403) is screwed onto the lead screw (402). The lead screw nut (403) is fixedly connected to the second slide plate (405). The second slide plate (405) is slidably engaged with the second slide rail (404). The sliding direction of the second slide rail (404) is parallel to the moving direction of the hanging chain (2).

3. The automatic purging system for wheel surface water accumulation according to claim 2, characterized in that, the third driving mechanism includes a third servo motor (601), a gear (602), a rack (603), a third slide rail (604), and a third slide plate (605). The gear (602) is coaxially sleeved outside the power output end of the third servo motor (601). The rack (603) is fixedly installed on the second slide plate (405). The gear (602) is engaged with the rack (603). The third slide rail (604) is fixedly installed on the second slide plate (405). The third slide plate (605) is slidably engaged with the third slide rail (604). The third servo motor (601) and the support (304) are both fixedly installed on the third slide plate (605).

4. The automatic purging system for wheel surface water accumulation according to claim 3, characterized in that, the detection mechanism (5) further includes a PLC. The electronic ruler (506) is electrically connected to the PLC. The PLC is electrically connected to the third servo motor (601).

5. The automatic purging system for wheel surface water accumulation according to claim 4, characterized in that, the moving mechanism includes at least two of the trigger photoelectric switches (406). The distance between the two trigger photoelectric switches (406) along the direction of the hanging rod (1) is less than the width of the trigger plate (201). Both of the trigger photoelectric switches (406) are electrically connected to the PLC. The PLC is electrically connected to the second servo motor (401).

6. The automatic purging system for wheel surface water accumulation according to claim 1, characterized in that, the detection mechanism (5) further includes a fourth slide rail (508) and a fourth slide plate (509). The fourth slide rail (508) is fixedly installed on the detection support (501). The fourth slide plate (509) is slidably engaged with the fourth slide rail (508). The floating frame (503) is fixedly installed on the fourth slide plate (509). The fourth slide plate (509) is fixedly connected to the power output end of the air cylinder (502). The sliding direction of the fourth slide rail (508) is parallel to the telescopic direction of the air cylinder (502).

7. The automatic purging system for wheel surface water accumulation according to claim 1, characterized in that, The system further includes a ground rail (7) that is slidably engaged with the bottom end of the hanging chain (2), and the ground rail (7) is arranged directly below the hanging rod (1).

8. The automatic purging system for accumulated water on the wheel surface according to claim 7, characterized in that, a guiding plate (8) is provided at the inlet end of the ground rail (7).

9. The automatic purging system for accumulated water on the wheel surface according to claim 1, characterized in that, a first transmission wheel (306) is sleeved outside the power output end of the first servo motor (305), a second transmission wheel (307) is sleeved outside the rotating shaft (303), and the first transmission wheel (306) is in transmission connection with the second transmission wheel (307).

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