Balancing machine for automotive repair testing

Abstract

The application relates to the technical field of automobile maintenance, in particular to a balancing machine for automobile maintenance and testing, which comprises a rack, a balancing machine main shaft arranged on the side wall of the rack, a baffle disc fixedly connected to the balancing machine main shaft, a nut baffle seat threadedly connected to the balancing machine main shaft, a baffle shaft rotatably connected to the side wall of the rack, a baffle cover fixedly connected to the baffle shaft, and a supporting plate fixedly connected to the side wall of the rack; through arrangement of an emergency limiting assembly, if the tire is separated from the balancing machine main shaft due to various unexpected factors during tire detection, the tire will first contact the emergency limiting assembly; at this time, the emergency limiting assembly will play a key role, effectively intercepts the tire and provides buffering, and helps prevent the tire from suddenly falling off to cause serious damage to the operating personnel or surrounding equipment.

Description

Technical Field

[0001] This invention relates to the field of automotive repair technology, and in particular to a balancing machine for automotive repair testing. Background Technology

[0002] A balancing machine is a device used to detect and adjust the imbalance of rotating parts (such as tires, flywheels, motor rotors, etc.). It determines the location and magnitude of the imbalance by measuring the vibration of the rotating parts when they rotate at high speed, and adjusts the balance by adding or removing counterweights.

[0003] Tire balancing is a crucial step in ensuring vehicle safety during automotive repair. Repair technicians typically use a balancing machine to perform dynamic balancing on the tires to ensure stability during high-speed rotation. However, if the tire balancing mechanism malfunctions during this process, the tire may suddenly detach, damaging the equipment and potentially causing serious injury to the technicians. Currently, there is a lack of effective emergency response measures for such situations. Once a tire detaches, technicians often have to rely on manual intervention to stop the machine, which may not be sufficient to prevent an accident in time. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a balancing machine for automotive repair testing.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a balancing machine for automobile repair and testing, comprising a frame, a balancing machine spindle provided on the side wall of the frame, a baffle plate fixedly connected to the balancing machine spindle, a nut stop seat threadedly connected to the balancing machine spindle, a stop shaft rotatably connected to the side wall of the frame, and a stop cover fixedly connected to the stop shaft; A support plate is fixedly connected to the side wall of the frame. A strain gauge is slidably connected to one end of the support plate near the stop shaft. The strain gauge has a slot, and two receiving rollers are symmetrically installed inside the slot. A power assembly is provided on the strain gauge. Mounting plates are fixedly connected to both side walls of the strain gauge. A hanging rod is fixedly connected between the two mounting plates. A sliding box is slidably connected to the outer wall of the hanging rod. An electric push rod is fixedly connected between the sliding box and one of the mounting plates. An emergency limiting component is provided on the side of the sliding box away from the electric push rod. If the tire falls off during the tire balancing test while rotating with the main shaft of the balancing machine, the emergency limiting component is used to limit and stop the tire.

[0006] Preferably, the emergency limiting assembly includes an adjusting screw, which is threadedly connected to the side wall of the sliding box. A limiting plate is fixedly connected to the end of the adjusting screw, and a limiting plate is slidably connected to the outer wall of the adjusting screw. A spring is fixedly connected between the limiting plate and the limiting plate, and the spring is sleeved on the outer wall of the adjusting screw.

[0007] Specifically, the relative position between the screw and the sliding box can be adjusted by rotating the screw. After adjusting the position by the electric actuator, the limiting plate can be further fine-tuned, which is beneficial for better intercepting the detached tire. When the tire accidentally detaches, the tire will first come into contact with the limiting plate. The limiting plate will compress the spring to make way, thereby using the deformation of the spring to absorb and disperse the force generated by the tire, thus reducing the impact force brought by the tire. After reducing the impact force brought by the tire, the limiting plate can intercept the tire. On the one hand, it helps to prevent the limiting plate from being damaged by excessive tire impact force. On the other hand, the secondary interception of the tire by the limiting plate helps to reduce the risk of damage caused by the tire detaching.

[0008] Preferably, an extension rod is fixedly connected to the limiting plate, an elastic element is fixedly connected to the side wall of the sliding box, a push plate is fixedly connected to the telescopic end of the elastic element, a connecting plate is fixedly installed on the side wall of the sliding box, a U-shaped seat is fixedly connected to the top of the connecting plate, a limiting plate is rotatably connected to the U-shaped seat, a clamping plate is fixedly connected to the U-shaped seat, an elastic push rod is fixedly connected to the clamping plate, and the extension rod cooperates with the limiting plate.

[0009] Preferably, the limiting plate has an arc-shaped groove on the side near the sliding box, a connecting block is fixedly installed on the inner wall of the arc-shaped groove, a sliding plate is fixedly connected inside the arc-shaped groove, and an arc-shaped spring is fixedly connected between the connecting block and the sliding plate, the arc-shaped spring being located inside the arc-shaped groove.

[0010] Preferably, a blower pump is fixedly connected to the side wall of the sliding box, and a curved pipe is fixedly connected to the air outlet of the blower pump. A sealing plate is fixedly connected to the end of the curved pipe. An installation cylinder is rotatably connected to the outer wall of the sealing plate. Multiple cleaning brushes are slidably connected in a circumferential array on the outer wall of the installation cylinder. Each cleaning brush has a wind-facing plate fixedly connected to its end, and the wind-facing plate is located inside the installation cylinder.

[0011] Preferably, a straight rod is fixedly connected inside the mounting cylinder, a rotating rod is fixedly connected to the end of the straight rod, and a rotating blade is fixedly connected to the outer wall of the rotating rod.

[0012] Preferably, an arc-shaped suction head is fixedly connected to the side wall of the limiting plate, a suction tube is fixedly connected to the side wall of the arc-shaped suction head, a connecting tube is fixedly connected to the end of the suction tube, a suction port is opened on the upper part of the connecting tube, a vertical tube is fixedly connected to the outer wall of the curved tube, the vertical tube cooperates with the suction port, and a triggering component is provided between the connecting tube and the mounting cylinder.

[0013] Preferably, the connecting tube includes a first insert, a second insert, and an elastic telescopic rod. The first insert and the second insert are slidably connected, the second insert is fixedly connected to the suction tube, the suction port is opened on the outer wall of the first insert, and the elastic telescopic rod is fixedly connected between the first insert and the second insert.

[0014] Preferably, the triggering component includes a trigger rod and a circular block. The trigger rod is fixedly connected to the side wall of the mounting cylinder, the circular block is fixedly connected to the end of the first insertion tube, and a trigger block is fixedly connected to the end of the circular block away from the first insertion tube.

[0015] Preferably, the power assembly includes a first electric push rod and a mounting plate. The fixed part of the first electric push rod is fixedly connected to the side wall of the frame, and the telescopic end of the first electric push rod is slidably connected to the side wall of the strain gauge. The mounting plate is slidably connected to the side wall of the frame, and a second electric push rod is fixedly connected to the top of the mounting plate. The telescopic end of the second electric push rod is fixedly connected to the strain gauge through a support plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: I. This invention, through the inclusion of an emergency limiting component, ensures that if, during tire inspection, the tire detaches from the balancing machine's main shaft due to unforeseen circumstances, it will first contact the emergency limiting component. At this point, the emergency limiting component plays a crucial role, effectively intercepting the tire and providing cushioning, helping to prevent serious damage to operators or surrounding equipment from sudden tire detachment. Furthermore, the emergency limiting component, in intercepting the tire, provides operators with valuable time to shut down and cut off power, thus avoiding unpredictable injuries that might result from continuous tire rotation and further ensuring the safety of the inspection process.

[0017] Second, this invention, through the setting of elastic elements, allows the limiting plate to flip under the action of the elastic push rod after it loses its constraint, thereby separating the limiting plate from the push plate and releasing the limiting position on the push plate. At this time, the elastic element releases its thrust, pushing the push plate to move, and the push plate in turn pushes the limiting plate towards the tire, thus keeping the limiting plate in a state of being detached from the tire. This helps to prevent the tire from being scratched when it rotates with the main shaft of the balancing machine.

[0018] Third, the present invention, through the setting of the connecting block, on the one hand, can maintain the relative static state between the connecting block and the tire by rotating synchronously, thereby avoiding abrasion caused by relative movement and protecting the tire sidewall; on the other hand, this process buys time for the extension rod to separate from the limiting plate, so that the push plate can push the limiting plate to separate from the tire in time, thereby helping to avoid tire damage caused by severe impact or friction, thereby reducing the safety risks caused by tire failure. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 .

[0020] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 .

[0021] Figure 3 This is a schematic diagram of the connection between the strain gauge and the mounting plate of the present invention. Figure 1 .

[0022] Figure 4 This is a schematic diagram of the connection between the strain gauge and the mounting plate of the present invention. Figure 2 .

[0023] Figure 5 This is a schematic diagram of the structure of the present invention at the connection between the mounting plate and the hanging rod.

[0024] Figure 6 For the present invention Figure 5 A magnified structural diagram at point A in the diagram.

[0025] Figure 7 For the present invention Figure 5 A magnified structural diagram at point B in the diagram.

[0026] Figure 8 This is a schematic diagram of the sliding box of the present invention.

[0027] Figure 9 This is a schematic diagram of the structure of the present invention along the cross-section of the mounting cylinder.

[0028] In the diagram: 1. Frame; 2. Balancing machine spindle; 3. Baffle plate; 4. Nut stop; 5. Baffle shaft; 6. Baffle cover; 7. Support plate; 8. Strain gauge seat; 9. Slotted section; 10. Receiving roller; 11. Mounting plate; 12. Hanging rod; 13. Sliding box; 14. Electric actuator; 15. Adjusting screw; 16. Limiting plate; 17. Limiting plate; 18. Spring; 19. Extension rod; 20. Elastic element; 21. Push plate; 22. Connecting plate; 23. U-shaped seat; 24. Limiting plate; 25. Clamping plate; 26. Elastic push rod; 27. Arc-shaped groove; 28. Connecting block; 29. ​​Slide plate; 30. Arc-shaped spring; 31. Air pump; 32. Bending tube; 33. Sealing plate; 34. Mounting cylinder; 35. Cleaning brush; 36. Wind vane; 37. Straight rod; 38. Rotating rod; 39. Rotating blade; 40. Arc-shaped suction head; 41. Suction tube; 42. Connecting tube; 43. Vertical tube; 44. Elastic telescopic rod; 45. Suction port; 46. Trigger rod; 47. Round block; 48. Trigger block; 49. First electric push rod; 50. Second electric push rod. Detailed Implementation

[0029] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0030] Application Scenario: Tire balancing is a crucial step in ensuring vehicle safety during automotive repair. Repair technicians typically use a balancing machine to dynamically balance tires, ensuring stability during high-speed rotation. However, if the tire balancing mechanism malfunctions during the process, the tire may suddenly detach, damaging the equipment and potentially causing serious injury to the technicians. Currently, existing technology lacks effective emergency response measures for such situations. Once a tire detaches, technicians often have to rely on manual intervention to stop the machine, which may not be sufficient to prevent an accident in time.

[0031] like Figures 1 to 9 The balancing machine shown includes a frame 1, a balancing machine spindle 2 on the side wall of the frame 1, a baffle 3 fixedly connected to the balancing machine spindle 2, a nut stop seat 4 threadedly connected to the balancing machine spindle 2, a stop shaft 5 rotatably connected to the side wall of the frame 1, and a stop cover 6 fixedly connected to the stop shaft 5. A support plate 7 is fixedly connected to the side wall of the frame 1. A strain gauge seat 8 is slidably connected to one end of the support plate 7 near the stop shaft 5. A slot 9 is provided on the strain gauge seat 8. Two receiving rollers 10 are symmetrically installed inside the slot 9. A power assembly is provided on the strain gauge seat 8. Mounting plates 11 are fixedly connected to both sides of the strain gauge seat 8. A hanging rod 12 is fixedly connected between the two mounting plates 11. A sliding box 13 is slidably connected to the outer wall of the hanging rod 12. An electric push rod 14 is fixedly connected between the sliding box 13 and one of the mounting plates 11. An emergency limit component is provided on the side of the sliding box 13 away from the electric push rod 14. If the tire falls off during the tire balancing test as it rotates with the main shaft 2 of the balancing machine, the emergency limit component is used to limit and stop the tire.

[0032] It should be understood that, firstly, the tire requiring repair is placed on the receiving roller 10 within the slot 9. Next, the operator activates the electric actuator 14, causing it to move the sliding box 13. As the sliding box 13 moves, the emergency limiting component is also adjusted to the appropriate position. After adjustment, the power unit first drives the strain gauge 8 upward, aligning the center of the tire to be tested with the balancing machine spindle 2. Subsequently, the power unit drives the strain gauge to move laterally, feeding the tire into the balancing machine spindle 2, and limiting the tire through the nut stop 4. This automated operation effectively improves the efficiency of tire placement. After limiting, the cover 6 is lowered to shield the tire to be tested; once preparation is complete, the balancing machine spindle 2 is started to rotate, causing the tire to rotate, thereby testing the tire's balance. During tire testing, if the tire detaches from the balancing machine spindle 2 due to various unforeseen factors, the tire will first contact the emergency limiting component. At this point, the emergency stop device plays a crucial role, effectively intercepting the tire and providing cushioning to help prevent serious damage to operators or surrounding equipment from sudden tire detachment. Furthermore, the emergency stop device buys operators valuable time to shut down and cut off power during tire interception, thus avoiding unpredictable damage that could result from continued tire rotation and further ensuring the safety of the inspection process.

[0033] As a further embodiment of the present invention, the emergency limiting component includes an adjusting screw 15, which is threadedly connected to the side wall of the sliding box 13. A limiting plate 16 is fixedly connected to the end of the adjusting screw 15, and a limiting plate 17 is slidably connected to the outer wall of the adjusting screw 15. A spring 18 is fixedly connected between the limiting plate 17 and the limiting plate 16, and the spring 18 is sleeved on the outer wall of the adjusting screw 15.

[0034] It should be understood that the relative position between the screw 15 and the sliding box 13 can be adjusted by rotating the screw 15. After the position is adjusted by the electric push rod 14, the limiting plate 17 can be further fine-tuned, which is beneficial for better intercepting the detached tire. After the tire accidentally detaches, the tire will first come into contact with the limiting plate 17. The limiting plate 17 will compress the spring 18 to make way, thereby using the deformation generated by the spring 18 to absorb and disperse the force generated by the tire, thereby reducing the impact force brought by the tire. After reducing the impact force brought by the tire, the limiting plate 17 can intercept the tire. On the one hand, it helps to prevent the tire from damaging the limiting plate 17 due to excessive impact force. On the other hand, the secondary interception of the tire by the limiting plate 17 helps to reduce the risk of damage caused by the tire detachment.

[0035] As a further embodiment of the present invention, an extension rod 19 is fixedly connected to the limiting plate 17, an elastic element 20 is fixedly connected to the side wall of the sliding box 13, a push plate 21 is fixedly connected to the telescopic end of the elastic element 20, a connecting plate 22 is fixedly installed on the side wall of the sliding box 13, a U-shaped seat 23 is fixedly connected to the top of the connecting plate 22, a limiting plate 24 is rotatably connected to the U-shaped seat 23, a clamping plate 25 is fixedly connected to the U-shaped seat 23, an elastic push rod 26 is fixedly connected to the clamping plate 25, and the extension rod 19 cooperates with the limiting plate 24.

[0036] It should be understood that, in the above description, the function of spring 18 is to absorb and disperse the impact force generated by accidental tire detachment, thereby providing protection. However, in practical applications, continuous contact between the limiting plate 17 and the tire may damage the tire. To avoid this, when the limiting plate 17 is moved by an external force, the extension rod 19 connected to it also moves accordingly. When the extension rod 19 moves to a certain extent, it separates from the limiting plate 24. After losing its constraint, the limiting plate 24 will flip under the action of the elastic push rod 26, thereby separating the limiting plate 24 from the push plate and releasing the limitation on the push plate 21. At this time, the elastic element 20 releases the thrust, pushing the push plate 21 to move, and the push plate 21 in turn pushes the limiting plate 17 towards the tire, thereby keeping the limiting plate 17 in a state of detachment from the tire, which helps to prevent the tire from being scratched when it rotates with the main shaft 2 of the balancing machine.

[0037] By pre-setting the length of the extension rod 19, the timing of its separation from the limiting plate 24 can be precisely controlled. This ensures that the push plate only disengages the limiting plate 17 from the tire after the tire has been relieved by the spring 18. This design, by reducing the contact time between the limiting plate 17 and the tire, helps protect the tire sidewall and reduces the risk of abrasions.

[0038] It should be noted that the elastic element 20 can be an elastic telescopic rod 44.

[0039] As a further embodiment of the present invention, the limiting plate 17 has an arc-shaped groove 27 on the side near the sliding box 13. A connecting block 28 is fixedly installed on the inner wall of the arc-shaped groove 27. A sliding plate 29 is fixedly connected inside the arc-shaped groove 27. An arc-shaped spring 30 is fixedly connected between the connecting block 28 and the sliding plate 29. The arc-shaped spring 30 is located inside the arc-shaped groove 27.

[0040] It should be understood that when the tire contacts the limiting plate 17, the tire sidewall will first contact the rubber connecting block 28. This rubber material design effectively reduces frictional damage to the tire sidewall. After the tire contacts the limiting plate 17, if the tire continues to rotate with the balancing machine spindle 2 due to inertia, the tire will cause the connecting block 28 to slide within the arc groove 27 and compress the arc spring 30. The compression process of the arc spring 30 helps the tire gradually stop rotating. On the one hand, the synchronous rotation of the connecting block 28 and the tire can maintain a relatively stationary state between them, thereby avoiding scuffing caused by relative motion and protecting the tire sidewall; on the other hand, this process buys time for the extension rod 19 to separate from the limiting plate 24, allowing the pusher 21 to push the limiting plate 17 away from the tire in time, thus helping to avoid tire damage caused by severe impact or friction, thereby reducing the safety risks caused by tire failure.

[0041] As a further embodiment of the present invention, a blower pump 31 is fixedly connected to the side wall of the sliding box 13, and a curved pipe 32 is fixedly connected to the air outlet of the blower pump 31. A sealing plate 33 is fixedly connected to the end of the curved pipe 32. An installation cylinder 34 is rotatably connected to the outer wall of the sealing plate 33. A plurality of cleaning brushes 35 are slidably connected in a circumferential array on the outer wall of the installation cylinder 34. A wind-facing plate 36 is fixedly connected to the end of each cleaning brush 35. The wind-facing plate 36 is located inside the installation cylinder 34.

[0042] As a further embodiment of the present invention, a straight rod 37 is fixedly connected inside the mounting cylinder 34, a rotating rod 38 is fixedly connected to the end of the straight rod 37, and a rotating blade 39 is fixedly connected to the outer wall of the rotating rod 38.

[0043] It should be understood that before placing the tire onto the main shaft of the balancing machine, the blower pump 31 is started simultaneously to blow air. The blower pump 31 delivers air to the inside of the curved tube 32, and the air source is delivered to the inside of the mounting cylinder 34 through the curved tube 32. When the airflow acts on the wind vane 36, it pushes the wind vane 36 to move. The wind vane 36 drives the cleaning brush 35 to move, so that the cleaning brush 35 can contact the surface of the tire. After the airflow enters the inside of the mounting cylinder 34, it acts on the rotating blade 39, thereby driving the rotating blade 39 to rotate. The rotation of the rotating blade 39 drives the straight rod 37 to rotate, the straight rod 37 drives the mounting cylinder 34 to rotate, and the mounting cylinder 34 drives the cleaning brush 35 to rotate. This is beneficial for cleaning impurities on the tire, preventing impurities on the tire from affecting the test results. Furthermore, by cleaning impurities on the tire, it is beneficial to prevent impurities from being ejected during the high-speed rotation of the tire, which could cause injury to the equipment and operators.

[0044] As a further embodiment of the present invention, an arc-shaped suction head 40 is fixedly connected to the side wall of the limiting plate 17, a suction tube 41 is fixedly connected to the side wall of the arc-shaped suction head 40, a connecting tube 42 is fixedly connected to the end of the suction tube 41, a suction port 45 is opened on the upper part of the connecting tube 42, a vertical tube 43 is fixedly connected to the outer wall of the curved tube 32, the vertical tube 43 cooperates with the suction port 45, and a triggering component is provided between the connecting tube 42 and the mounting cylinder 34.

[0045] As a further embodiment of the present invention, the connecting tube 42 includes a first insert, a second insert, and an elastic telescopic rod 44. The first insert and the second insert are slidably connected, the second insert is fixedly connected to the suction tube 41, the suction port 45 is opened on the outer wall of the first insert, and the elastic telescopic rod 44 is fixedly connected between the first insert and the second insert.

[0046] As a further embodiment of the present invention, the triggering component includes a trigger rod 46 and a round block 47. The trigger rod 46 is fixedly connected to the side wall of the mounting cylinder 34, and the round block 47 is fixedly connected to the end of the first insertion tube. A trigger block 48 is fixedly connected to the end of the round block 47 away from the first insertion tube.

[0047] It should be understood that during the rotation of the mounting cylinder 34, the trigger rod 46 rotates synchronously. When the trigger rod 46 contacts the trigger block 48, the inclined surface on the trigger block 48 guides the trigger rod 46 to push the trigger block 48 along a predetermined trajectory. The movement of the trigger block 48 causes the connected circular block 47 to displace, thereby causing the circular block 47 to push the first insertion tube to slide inside the second insertion tube. As the first insertion tube slides, the elastic telescopic rod 44 connected to it is compressed, thus providing the necessary clearance space for the movement of the trigger rod 46. At the same time, the sliding of the first insertion tube also causes the suction port 45 to move, connecting it to the vertical tube 43.

[0048] When the suction port 45 connects with the vertical tube 43, the entire system forms a complete connecting channel, specifically including: the curved tube 32, the vertical tube 43, the first insertion tube, the second insertion tube, the suction tube 41, and the arc-shaped suction head 40. The establishment of this connecting channel allows the air to flow along the channel when the blower pump 31 delivers air into the curved tube 32, creating a negative pressure space at the arc-shaped suction head 40. This negative pressure space generates strong suction, effectively adsorbing and cleaning any impurities that may be present inside the arc-shaped groove 27. This method helps ensure that the extension and contraction of the arc-shaped spring 30 are not interfered with by impurities, thereby guaranteeing the normal operation of the connecting block 28. Furthermore, after the tire is installed on the main shaft of the balancing machine, the blower pump 31 is stopped.

[0049] As a further embodiment of the present invention, the power assembly includes a first electric push rod 49 and a mounting plate. The fixed part of the first electric push rod 49 is fixedly connected to the side wall of the frame 1, and the telescopic end of the first electric push rod 49 is slidably connected to the side wall of the strain gauge 8. The mounting plate is slidably connected to the side wall of the frame 1, and a second electric push rod 50 is fixedly connected to the top of the mounting plate. The telescopic end of the second electric push rod 50 is fixedly connected to the strain gauge 8 through a support plate.

[0050] It should be understood that the second electric push rod 50 drives the support plate to move, the support plate drives the strain gauge 8 to move upward, and thus ultimately drives the tire to be tested to move; the first electric push rod 49 drives the strain gauge 8 to move laterally, thus driving the tire to be tested to be installed on the main shaft 2 of the balancing machine.

[0051] Working principle of this invention: First, the tire requiring repair is placed on the receiving roller 10 within the slot 9. Next, the operator activates the electric actuator 14, causing it to move the sliding box 13. As the sliding box 13 moves, the emergency limit assembly is adjusted to the appropriate position. After adjustment, the power unit first drives the strain gauge 8 upward, aligning the center of the tire to be tested with the balancing machine spindle 2. Subsequently, the power unit drives the strain gauge to move laterally, feeding the tire into the balancing machine spindle 2, and limiting the tire's position via the nut stop 4. This automated operation effectively improves tire placement efficiency. After limiting, the cover 6 is lowered to shield the tire to be tested. Once preparation is complete, the balancing machine spindle 2 is started to rotate, rotating the tire to be tested to assess its balance. During tire testing, if the tire detaches from the balancing machine spindle 2 due to unforeseen circumstances, it will first contact the emergency limit assembly. At this point, the emergency limit assembly plays a crucial role, effectively intercepting and cushioning the tire, helping to prevent sudden tire detachment from causing serious damage to operators or surrounding equipment. In addition, the emergency limit switch can buy operators valuable time to shut down and cut off power during the tire interception process, thereby avoiding unpredictable damage that may be caused by the continuous rotation of the tire and further ensuring the safety of the inspection process.

[0052] The foregoing has shown and described 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 to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A balancing machine for automotive repair testing, comprising a frame (1), characterized in that: The side wall of the frame (1) is provided with a balancing machine spindle (2), a baffle (3) is fixedly connected to the balancing machine spindle (2), a nut stop (4) is threadedly connected to the balancing machine spindle (2), a stop shaft (5) is rotatably connected to the side wall of the frame (1), and a stop cover (6) is fixedly connected to the stop shaft (5). A support plate (7) is fixedly connected to the side wall of the frame (1). A strain seat (8) is slidably connected to one end of the support plate (7) near the stop shaft (5). A slot (9) is provided on the strain seat (8). Two receiving rollers (10) are symmetrically installed inside the slot (9). A power assembly is provided on the strain seat (8). Mounting plates (11) are fixedly connected to both sides of the strain seat (8). A hanging rod (12) is fixedly connected between the two mounting plates (11). A sliding box (13) is slidably connected to the outer wall of the hanging rod (12). An electric push rod (14) is fixedly connected between the sliding box (13) and one of the mounting plates (11). An emergency limit assembly is provided on the side of the sliding box (13) away from the electric push rod (14). If the tire falls off during the tire balance test while rotating with the main shaft (2) of the balancing machine, the emergency limit assembly is used to limit and block the tire. The emergency limiting assembly includes an adjusting screw (15), which is threaded to the side wall of the sliding box (13). A limiting plate (16) is fixedly connected to the end of the adjusting screw (15). A limiting plate (17) is slidably connected to the outer wall of the adjusting screw (15). A spring (18) is fixedly connected between the limiting plate (17) and the limiting plate (16). The spring (18) is sleeved on the outer wall of the adjusting screw (15). An extension rod (19) is fixedly connected to the limiting plate (17), an elastic element (20) is fixedly connected to the side wall of the sliding box (13), a push plate (21) is fixedly connected to the telescopic end of the elastic element (20), a connecting plate (22) is fixedly installed on the side wall of the sliding box (13), a U-shaped seat (23) is fixedly connected to the top of the connecting plate (22), a limiting plate (24) is rotatably connected to the U-shaped seat (23), a clamping plate (25) is fixedly connected to the U-shaped seat (23), an elastic push rod (26) is fixedly connected to the clamping plate (25), and the extension rod (19) cooperates with the limiting plate (24). The limiting plate (17) has an arc-shaped groove (27) on the side near the sliding box (13). A connecting block (28) is fixedly installed on the inner wall of the arc-shaped groove (27). A sliding plate (29) is fixedly connected inside the arc-shaped groove (27). An arc-shaped spring (30) is fixedly connected between the connecting block (28) and the sliding plate (29). The arc-shaped spring (30) is located inside the arc-shaped groove (27). A blower pump (31) is fixedly connected to the side wall of the sliding box (13). The air outlet of the blower pump (31) is fixedly connected to a curved pipe (32). The end of the curved pipe (32) is fixedly connected to a sealing plate (33). An installation cylinder (34) is rotatably connected to the outer wall of the sealing plate (33). Multiple cleaning brushes (35) are slidably connected in a circular array on the outer wall of the installation cylinder (34). Each cleaning brush (35) is fixedly connected to a windward plate (36) at its end. The windward plate (36) is located inside the installation cylinder (34). A straight rod (37) is fixedly connected inside the mounting cylinder (34), and a rotating rod (38) is fixedly connected to the end of the straight rod (37). A rotating blade (39) is fixedly connected to the outer wall of the rotating rod (38). An arc-shaped suction head (40) is fixedly connected to the side wall of the limiting plate (17). A suction tube (41) is fixedly connected to the side wall of the arc-shaped suction head (40). A connecting tube (42) is fixedly connected to the end of the suction tube (41). A suction port (45) is opened on the upper part of the connecting tube (42). A vertical tube (43) is fixedly connected to the outer wall of the curved tube (32). The vertical tube (43) cooperates with the suction port (45). A triggering component is provided between the connecting tube (42) and the mounting cylinder (34).

2. The balancing machine for automotive repair testing according to claim 1, characterized in that: The connecting tube (42) includes a first insert, a second insert, and an elastic telescopic rod (44). The first insert and the second insert are slidably connected. The second insert is fixedly connected to the suction tube (41). The suction port (45) is opened on the outer wall of the first insert. The elastic telescopic rod (44) is fixedly connected between the first insert and the second insert.

3. The balancing machine for automotive repair testing according to claim 2, characterized in that: The triggering assembly includes a trigger rod (46) and a round block (47). The trigger rod (46) is fixedly connected to the side wall of the mounting cylinder (34), and the round block (47) is fixedly connected to the end of the first insertion tube. A trigger block (48) is fixedly connected to the end of the round block (47) away from the first insertion tube.

4. A balancing machine for automotive repair testing according to claim 3, characterized in that: The power assembly includes a first electric push rod (49) and a mounting plate. The fixed part of the first electric push rod (49) is fixedly connected to the side wall of the frame (1). The telescopic end of the first electric push rod (49) is slidably connected to the side wall of the strain seat (8). The mounting plate is slidably connected to the side wall of the frame (1). A second electric push rod (50) is fixedly connected to the top of the mounting plate. The telescopic end of the second electric push rod (50) is fixedly connected to the strain seat (8) through a support plate.

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