Balancing machine for automobile maintenance test

Abstract

The invention relates to the technical field of automobile maintenance, in particular to a balancing machine for automobile maintenance testing. Comprising a machine frame, a balancing machine main shaft is arranged on the side wall of the machine frame, a blocking disc is fixedly connected to the balancing machine main shaft, a nut blocking base is connected to the balancing machine main shaft in a threaded mode, a blocking shaft is rotationally connected to the side wall of the machine frame, a blocking cover is fixedly connected to the blocking shaft, and a supporting plate is fixedly connected to the side wall of the machine frame. Through the arrangement of the emergency limiting assembly, in the tire detection process, if the tire is separated from the main shaft of the balancing machine due to various accidental factors, the tire is firstly in contact with the emergency limiting assembly. At the moment, the emergency limiting assembly plays a key role, the tire is effectively intercepted and buffered, and it is helpful to prevent the tire from falling off suddenly to cause serious damage to operators or peripheral equipment.

Description

Technical Field

[0001] The invention relates to the technical field of automobile maintenance, and in particular to a balancing machine for automobile maintenance testing. Background Art

[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 size of the imbalance by measuring the vibration of the rotating parts at high speeds, and adjusts the balance by adding or removing counterweights.

[0003] During the automobile maintenance process, tire balancing detection is an important part of ensuring vehicle driving safety. Usually, maintenance personnel will use a balancing machine to perform dynamic balancing detection on the tire to ensure that the tire remains stable when rotating at high speed. However, if there is a problem with the tire limit device during the detection process, the tire may suddenly fall off, which will not only damage the equipment but also cause serious harm to the maintenance personnel. At present, the existing technology lacks effective emergency response measures for such emergencies. Once the tire falls off, maintenance personnel can often only rely on manual operation to shut down the machine in an emergency, but this may not be able to avoid accidents in time. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a balancing machine for automobile maintenance and testing.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a balancing machine for automobile maintenance and testing, comprising a frame, a balancing machine main shaft is provided on the side wall of the frame, a baffle is fixedly connected to the balancing machine main shaft, a nut baffle is threadedly connected to the balancing machine main shaft, a baffle shaft is rotatably connected to the side wall of the frame, and a baffle cover is fixedly connected to the baffle shaft; A support plate is fixedly connected to the side wall of the frame, and a strain seat is slidably connected to one end of the support plate close to the retaining shaft. The strain seat is provided with a slot, and two receiving rollers are symmetrically installed inside the slot. A power assembly is arranged on the strain seat, and mounting plates are fixedly connected to both side walls of the strain seat, 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, and an emergency limit assembly is provided on the side of the sliding box away from the electric push rod. During the balancing test of the tire, if the tire falls off while following the rotation of the main shaft of the balancing machine, the emergency limit assembly is used to limit and block the tire.

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

[0007] Specifically, the relative position between the tire and the sliding box can be adjusted by rotating the adjustment screw, so that after adjusting the position by the electric push rod, the limit plate can be further fine-tuned, which is conducive to better intercepting the fallen tire. After the tire falls off accidentally, the tire will first contact the limit plate, and the limit plate will compress the spring to make way, thereby using the deformation generated by the spring to absorb and disperse the force generated by the tire, thereby reducing the impact force brought by the tire, and after reducing the impact force brought by the tire, the limit plate can intercept the tire. On the one hand, it is conducive to preventing the limit plate from being damaged by excessive impact of the tire. On the other hand, secondary interception of the tire by the limit plate is conducive to reducing the risk of damage caused by tire falling off.

[0008] Preferably, an extension rod is fixedly connected to the limit plate, an elastic member is fixedly connected to the side wall of the sliding box, a push plate is fixedly connected to the telescopic end of the elastic member, 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, an arc-shaped groove is provided on one side of the limit plate close to the sliding box, a connecting block is fixedly installed on the inner wall of the arc-shaped groove, a sliding plate is fixedly connected in the arc-shaped groove, an arc-shaped spring is fixedly connected between the connecting block and the sliding plate, and the arc-shaped spring is located inside the arc-shaped groove.

[0010] Preferably, a blowing pump is fixedly connected to the side wall of the sliding box, the air outlet of the blowing pump is fixedly connected to a bending pipe, the end of the bending pipe is fixedly connected to a blocking plate, a mounting cylinder is rotatably connected to the outer wall of the blocking plate, a plurality of cleaning brushes are slidably connected to the outer wall of the mounting cylinder in a circular array, the end of each cleaning brush is fixedly connected to a windward plate, and the windward plate is located inside the mounting cylinder.

[0011] Preferably, a straight rod is fixedly connected to the interior of the installation cylinder, a rotating rod is fixedly connected to the end of the straight rod, and a self-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 limit plate, a suction straw 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 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 trigger assembly is provided between the connecting tube and the mounting tube.

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

[0014] Preferably, the trigger assembly includes a trigger rod and a round block, the trigger rod is fixedly connected to the side wall of the mounting tube, the round block is fixedly connected to the end of the first plug, and the end of the round block away from the first plug is fixedly connected to the trigger block.

[0015] Preferably, the power assembly includes a first electric push rod and a hanging plate, the fixed portion of the first electric push rod is fixedly connected to the side wall of the frame, the telescopic end of the first electric push rod is slidably connected to the side wall of the strain seat, the hanging plate is slidably connected to the side wall of the frame, the top of the hanging plate is fixedly connected to a second electric push rod, and the telescopic end of the second electric push rod is fixedly connected to the strain seat via a support plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention sets an emergency limiter assembly. During the tire detection process, if the tire is separated from the main shaft of the balancing machine due to various unexpected factors, the tire will first contact the emergency limiter assembly. At this time, the emergency limiter assembly will play a key role in effectively intercepting the tire and providing a buffer, which helps prevent the sudden fall of the tire from causing serious damage to the operator or surrounding equipment. In addition, during the process of intercepting the tire, the emergency limiter assembly can buy precious shutdown and power-off time for the operator, thereby avoiding unpredictable injuries that may be caused by the continuous rotation of the tire, and further ensuring the safety of the detection process.

[0017] Second, the present invention sets an elastic member, and after the limiting plate loses its constraint, it will flip under the action of the elastic push rod, so that the limiting plate and the push plate are separated, and the limit on the push plate is released. At this time, the elastic member releases the thrust, pushing the push plate to move, and the push plate pushes the limiting plate to move toward the tire, so that the limiting plate remains separated from the tire, which is helpful to prevent the tire from being scratched when it rotates with the main shaft of the balancing machine.

[0018] 3. The present invention provides a connecting block. On the one hand, the synchronous rotation of the connecting block and the tire can maintain a relative static state between the two, thereby avoiding scratches 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, which is beneficial to avoid tire damage caused by severe impact or friction, thereby reducing the safety risks caused by tire failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 .

[0020] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 .

[0021] Figure 3 The structure diagram of the connection between the strain seat and the mounting plate of the present invention is shown in FIG. Figure 1 .

[0022] Figure 4 The structure diagram of the connection between the strain seat and the mounting plate of the present invention is shown in FIG. Figure 2 .

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

[0024] Figure 6 For the present invention Figure 5 A in the figure is an enlarged structural diagram.

[0025] Figure 7 For the present invention Figure 5 The enlarged structural diagram at B in FIG.

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

[0027] Fig. 9 It is a schematic diagram of the structure of the present invention along the cross section of the installation tube.

[0028] In the figure: 1, frame; 2, balancing machine main shaft; 3, stop plate; 4, nut stop seat; 5, stop shaft; 6, stop cover; 7, support plate; 8, strain seat; 9, slot; 10, receiving roller; 11, mounting plate; 12, hanging rod; 13, sliding box; 14, electric push rod; 15, adjusting screw; 16, limit plate; 17, limit plate; 18, spring; 19, extension rod; 20, elastic member; 21, push plate; 22, connecting plate; 23, U-shaped seat; 24, limit plate; 25, clamping plate; 26, elastic push rod; 27. Arc groove; 28. Connecting block; 29. ​​Slide plate; 30. Arc spring; 31. Blowing pump; 32. Bending pipe; 33. Sealing plate; 34. Mounting cylinder; 35. Cleaning brush; 36. Windward plate; 37. Straight rod; 38. Rotating rod; 39. Self-rotating blade; 40. Arc suction head; 41. Suction tube; 42. Connecting pipe; 43. Vertical pipe; 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 DESCRIPTION

[0029] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0030] Application scenario: During automobile maintenance, tire balance detection is an important part of ensuring vehicle driving safety. Usually, maintenance personnel will use a balancing machine to perform dynamic balance detection on tires to ensure that the tires remain stable when rotating at high speeds. However, if there is a problem with the tire limit device during the detection process, the tire may suddenly fall off, which will not only damage the equipment, but may also cause serious harm to the maintenance personnel. At present, the existing technology lacks effective emergency response measures for such emergencies. Once the tire falls off, maintenance personnel can often only rely on manual operation to make an emergency stop, but this may not be able to avoid accidents in time.

[0031] like Figures 1 to 9 A balancing machine for automobile maintenance and testing shown in the figure comprises a frame 1, a balancing machine main shaft 2 is provided on the side wall of the frame 1, a baffle plate 3 is fixedly connected to the balancing machine main shaft 2, a nut baffle seat 4 is threadedly connected to the balancing machine main shaft 2, a baffle shaft 5 is rotatably connected to the side wall of the frame 1, and a baffle cover 6 is fixedly connected to the baffle shaft 5; A support plate 7 is fixedly connected to the side wall of the frame 1, and a strain seat 8 is slidably connected to one end of the support plate 7 close to the retaining shaft 5. A slot 9 is opened on the strain seat 8, and two receiving rollers 10 are symmetrically installed inside the slot 9. A power component is arranged on the strain seat 8. Mounting plates 11 are fixedly connected to both side walls 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, and an emergency limit assembly is arranged on the side of the sliding box 13 away from the electric push rod 14. During the balancing test of the tire, if the tire falls off during the rotation of the balancing machine main shaft 2, the emergency limit assembly is used to limit and block the tire.

[0032] It should be understood that, first, the tire to be repaired is placed on the receiving roller 10 in the slot 9. Then, the operator starts the electric push rod 14 to drive the sliding box 13 to move. As the sliding box 13 moves, the emergency limit assembly is also adjusted to a suitable position. After the adjustment is completed, the power assembly first drives the strain seat 8 to move upward so that the center of the tire to be tested is aligned with the main shaft 2 of the balancing machine. Subsequently, the power assembly drives the strain box to move horizontally, sends the tire into the main shaft 2 of the balancing machine, and limits the tire through the nut stop seat 4. This automated operation can effectively improve the efficiency of tire placement. After the limit is completed, the stop cover 6 is lowered to cover the tire to be tested; after the preparation is completed, the main shaft 2 of the balancing machine is controlled to start rotating, and the main shaft 2 of the balancing machine drives the tire to be tested to rotate, so as to detect the balance of the tire. During the tire detection process, if the tire is separated from the main shaft 2 of the balancing machine due to various unexpected factors, the tire will first contact the emergency limit assembly. At this time, the emergency limiter will play a key role, effectively intercepting the tire and providing a buffer, helping to prevent the tire from suddenly falling off and causing serious damage to the operator or surrounding equipment. In addition, in the process of intercepting the tire, the emergency limiter can buy valuable shutdown and power-off time for the operator, thereby avoiding unpredictable injuries that may be caused by the continuous rotation of the tire, further ensuring the safety of the detection process.

[0033] As a further implementation scheme of the present invention, the emergency limit assembly includes an adjusting screw 15, which is threadedly connected to the side wall of the sliding box 13, and the end of the adjusting screw 15 is fixedly connected to the limiting plate 16. A limiting plate 17 is slidably connected to the outer wall of the adjusting screw 15, and 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 sliding box 13 and the adjusting screw 15 can be adjusted by rotating the adjusting screw 15, so that after adjusting the position by the electric push rod 14, the limit plate 17 can be further fine-tuned, which is conducive to better intercepting the fallen tire. After the tire falls off accidentally, the tire will first contact the limit plate 17, and the limit plate 17 will compress the spring 18 to make way, thereby utilizing 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, and after reducing the impact force brought by the tire, the limit plate 17 can intercept the tire. On the one hand, it is conducive to preventing the limit plate 17 from being damaged by excessive impact of the tire. On the other hand, secondary interception of the tire by the limit plate 17 is conducive to reducing the risk of damage caused by the tire falling off.

[0035] As a further implementation scheme of the present invention, an extension rod 19 is fixedly connected to the limit plate 17, an elastic member 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 member 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 role of the spring 18 is to absorb and disperse the impact force generated by the accidental separation of the tire, thereby playing a protective role. However, in actual application, the continuous contact between the limit plate 17 and the tire may cause damage to the tire. In order to avoid this situation, when the limit plate 17 is moved by external force, the extension rod 19 connected to it will also move accordingly. When the extension rod 19 moves to a certain extent, it will separate from the limit plate 24. After losing its constraint, the limit plate 24 will flip under the action of the elastic push rod 26, so that the limit plate 24 is separated from the push plate, and then the limit on the push plate 21 is released. At this time, the elastic member 20 releases the thrust, pushing the push plate 21 to move, and the push plate 21 then pushes the limit plate 17 to move in the direction of the tire, so that the limit plate 17 maintains a state of separation from the tire, which is conducive to preventing the tire from being scratched when it rotates with the main shaft 2 of the balancing machine.

[0037] By presetting the length of the extension rod 19, the timing of its separation from the limiting plate 24 can be precisely controlled. In this way, the push plate will push the limiting plate 17 to separate from the tire only after the tire is unloaded by the spring 18. This design helps protect the tire sidewall and reduce the risk of scratches by reducing the contact time between the limiting plate 17 and the tire.

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

[0039] As a further implementation scheme of the present invention, an arc-shaped groove 27 is opened on the side of the limit plate 17 close to the sliding box 13, a connecting block 28 is fixedly installed on the inner wall of the arc-shaped groove 27, a slide 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 slide plate 29, and the arc-shaped spring 30 is located inside the arc-shaped groove 27.

[0040] It should be understood that when the tire contacts the limit plate 17, the sidewall of the tire will first contact the rubber connection block 28. This rubber material design can effectively reduce friction damage to the tire sidewall. After the tire contacts the limit plate 17, if the tire continues to rotate with the balancing machine main shaft 2 due to inertia, the tire will drive the connection block 28 to slide in the arc groove 27 and compress the arc spring 30. The compression process of the arc spring 30 assists the tire to gradually stop rotating. On the one hand, the synchronous rotation of the connection block 28 and the tire can maintain a relative static state between the two, thereby avoiding scratches caused by relative movement and protecting the tire sidewall; on the other hand, this process buys time for the extension rod 19 to disengage from the limit plate 24, so that the push plate 21 can push the limit plate 17 to separate from the tire in time, which is conducive to avoiding tire damage caused by severe impact or friction, thereby reducing the safety risks caused by tire failure.

[0041] As a further implementation scheme of the present invention, a blowing pump 31 is fixedly connected to the side wall of the sliding box 13, the air outlet of the blowing pump 31 is fixedly connected to a bending pipe 32, the end of the bending pipe 32 is fixedly connected to a sealing plate 33, a mounting cylinder 34 is rotatably connected to the outer wall of the sealing plate 33, a plurality of cleaning brushes 35 are slidably connected to the outer wall of the mounting cylinder 34 in a circular array, and the end of each cleaning brush 35 is fixedly connected to a windward plate 36, which is located inside the mounting cylinder 34.

[0042] As a further embodiment of the present invention, a straight rod 37 is fixedly connected inside the installation cylinder 34 , a rotating rod 38 is fixedly connected to the end of the straight rod 37 , and a self-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 on the main shaft of the balancing machine, the blowing pump 31 is started synchronously to start blowing. The blowing pump 31 delivers air source to the inside of the curved tube 32, and the air source delivers air source to the inside of the mounting tube 34 through the curved tube 32. When the airflow acts on the windward plate 36, it will push the windward plate 36 to move, and the windward plate 36 will drive the cleaning brush 35 to move, so that the cleaning brush 35 can contact the surface of the tire, and after the airflow enters the inside of the mounting tube 34, it will act on the self-rotating blade 39, thereby driving the self-rotating blade 39 to rotate. The rotation of the self-rotating blade 39 will drive the straight rod 37 to rotate, and the straight rod 37 will drive the mounting tube 34 to rotate, and the mounting tube 34 will drive the cleaning brush 35 to rotate, which is beneficial to cleaning impurities on the tire to prevent impurities attached to the tire from affecting the detection results, and by cleaning the impurities on the tire, it is beneficial to prevent the impurities from bursting out during the high-speed rotation of the tire and causing damage to the equipment and operators.

[0044] As a further implementation scheme 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 connecting tube 42, a vertical tube 43 is fixedly connected to the outer wall of the bending tube 32, the vertical tube 43 cooperates with the suction port 45, and a trigger assembly is provided between the connecting tube 42 and the mounting tube 34.

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

[0046] As a further embodiment of the present invention, the trigger 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 tube 34, and the round block 47 is fixedly connected to the end of the first cannula. The end of the round block 47 away from the first cannula is fixedly connected with a trigger block 48.

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

[0048] When the suction port 45 is connected to the vertical pipe 43, the entire system will form a complete communication channel, which specifically includes: the curved tube 32, the vertical pipe 43, the first insert pipe, the second insert pipe, the suction pipe 41 and the arc-shaped suction head 40. The establishment of this communication channel enables when the air pump 31 delivers air to the inside of the curved tube 32, the air will flow along the channel and form a negative pressure space at the arc-shaped suction head 40. This negative pressure space will generate a strong suction force, which can effectively absorb and clean up impurities that may exist inside the arc groove 27. In this way, it is helpful to ensure that the expansion and contraction of the arc spring 30 is not interfered by impurities, thereby ensuring the normal operation of the connecting block 28; Further, after the tire is mounted on the main shaft of the balancing machine, the air blowing pump 31 is controlled to stop working.

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

[0050] It should be understood that the support plate is driven to move by the second electric push rod 50, and the support plate drives the strain seat 8 to move upward, thereby ultimately driving the tire to be tested to move; the strain seat 8 is driven to move horizontally by the first electric push rod 49, thereby driving the tire to be tested to enter the balancing machine main shaft 2 for installation.

[0051] Working principle of the present invention: First, the tire to be repaired is placed on the receiving roller 10 in the slot 9. Then, the operator starts the electric push rod 14 to drive the sliding box 13 to move. As the sliding box 13 moves, the emergency limit assembly is also adjusted to a suitable position. After the adjustment is completed, the power assembly first drives the strain seat 8 to move upward so that the center of the tire to be tested is aligned with the main shaft 2 of the balancing machine. Subsequently, the power assembly drives the strain box to move horizontally, sends the tire into the main shaft 2 of the balancing machine, and limits the tire through the nut stop seat 4. This automated operation can effectively improve the efficiency of tire placement. After the limit is completed, the stop cover 6 is lowered to cover the tire to be tested; after the preparation is completed, the main shaft 2 of the balancing machine is controlled to start rotating, and the main shaft 2 of the balancing machine drives the tire to be tested to rotate, so as to detect the balance of the tire. During the tire detection process, if the tire is separated from the main shaft 2 of the balancing machine due to various unexpected factors, the tire will first contact the emergency limit assembly. At this time, the emergency limit assembly will play a key role, effectively intercepting and providing buffering for the tire, which helps to prevent the sudden fall of the tire from causing serious damage to the operator or surrounding equipment. In addition, the emergency limit assembly can buy operators valuable shutdown and power-off time during the tire interception process, thereby avoiding unpredictable injuries that may be caused by the continuous rotation of the tire and further ensuring the safety of the detection process.

[0052] 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 to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A balancing machine for automobile maintenance and testing, comprising a frame (1), characterized in that: A balancing machine main shaft (2) is provided on the side wall of the frame (1), a baffle plate (3) is fixedly connected to the balancing machine main shaft (2), a nut baffle seat (4) is threadedly connected to the balancing machine main shaft (2), a baffle shaft (5) is rotatably connected to the side wall of the frame (1), and a baffle cover (6) is fixedly connected to the baffle 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) close to the blocking 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 arranged on the strain seat (8); mounting plates (11) are fixedly connected to both side walls 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 arranged on a side of the sliding box (13) away from the electric push rod (14); during the process of balancing the tire, if the tire falls off during the process of following the rotation of the balancing machine main shaft (2), the emergency limit assembly is used to limit and block the tire.

2. The balancing machine for automobile maintenance and testing according to claim 1, characterized in that: The emergency limit assembly comprises an adjusting screw (15), wherein the adjusting screw (15) is threadedly connected to a side wall of a sliding box (13), an end of the adjusting screw (15) is fixedly connected to a limit plate (16), an outer wall of the adjusting screw (15) is slidably connected to a limit plate (17), a spring (18) is fixedly connected between the limit plate (17) and the limit plate (16), and the spring (18) is sleeved on the outer wall of the adjusting screw (15).

3. The balancing machine for automobile maintenance and testing according to claim 2, characterized in that: An extension rod (19) is fixedly connected to the limit plate (17), an elastic member (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 member (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).

4. The balancing machine for automobile maintenance and testing according to claim 3, characterized in that: An arc-shaped groove (27) is formed on one side of the limit plate (17) close to the sliding box (13); a connecting block (28) is fixedly mounted 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); and the arc-shaped spring (30) is located inside the arc-shaped groove (27).

5. The balancing machine for automobile maintenance and testing according to claim 4, characterized in that: A blow pump (31) is fixedly connected to the side wall of the sliding box (13); an air outlet of the blow pump (31) is fixedly connected to a bent pipe (32); an end of the bent pipe (32) is fixedly connected to a blocking plate (33); a mounting tube (34) is rotatably connected to the outer wall of the blocking plate (33); a plurality of cleaning brushes (35) are slidably connected to the outer wall of the mounting tube (34) in a circular array; an end of each cleaning brush (35) is fixedly connected to a windward plate (36); and the windward plate (36) is located inside the mounting tube (34).

6. The balancing machine for automobile maintenance and testing according to claim 5, characterized in that: A straight rod (37) is fixedly connected inside the installation cylinder (34), a rotating rod (38) is fixedly connected to the end of the straight rod (37), and a self-rotating blade (39) is fixedly connected to the outer wall of the rotating rod (38).

7. The balancing machine for automobile maintenance and testing according to claim 6, characterized in that: An arc-shaped suction head (40) is fixedly connected to the side wall of the limit plate (17); a suction pipe (41) is fixedly connected to the side wall of the arc-shaped suction head (40); a connecting pipe (42) is fixedly connected to the end of the suction pipe (41); a suction port (45) is opened on the connecting pipe (42); a vertical pipe (43) is fixedly connected to the outer wall of the curved tube (32); the vertical pipe (43) cooperates with the suction port (45); and a trigger assembly is provided between the connecting pipe (42) and the mounting tube (34).

8. The balancing machine for automobile maintenance and testing according to claim 7, characterized in that: The connecting tube (42) comprises a first insert tube, a second insert tube and an elastic telescopic rod (44); the first insert tube is slidably connected to the second insert tube; the second insert tube is fixedly connected to the suction tube (41); the suction port (45) is provided on the outer wall of the first insert tube; and the elastic telescopic rod (44) is fixedly connected between the first insert tube and the second insert tube.

9. The balancing machine for automobile maintenance and testing according to claim 8, characterized in that: The trigger assembly comprises a trigger rod (46) and a round block (47); the trigger rod (46) is fixedly connected to the side wall of the mounting tube (34); the round block (47) is fixedly connected to the end of the first insertion tube; and the end of the round block (47) away from the first insertion tube is fixedly connected to a trigger block (48).

10. The balancing machine for automobile maintenance and testing according to claim 1, characterized in that: The power assembly comprises a first electric push rod (49) and a hanging plate, wherein the fixed portion 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 hanging plate is slidably connected to the side wall of the frame (1), the top of the hanging plate is fixedly connected to a second electric push rod (50), and the telescopic end of the second electric push rod (50) is fixedly connected to the strain seat (8) via a support plate.

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