Tyre remover

Abstract

The utility model provides a tire stripping device which is characterized in that a tire stripping frame is provided with two supporting rods which transversely extend out and are arranged left and right, and the symmetrical middle faces of the two supporting rods penetrate through the axis of a balance shaft of a wheel dynamic balancing machine; the steel wire rope is wound on the pulley block to form a closed loop, the pulley at the lowermost end is a basic pulley, and the inductor and the sliding block are located on the steel wire rope on the two sides of the basic pulley respectively; the sliding block is located above the tire removing frame, and the tire removing frame abuts against the sliding block when ascending. A sensor is mounted on the steel wire rope, a pivot is hinged on the sensor in a left-right swinging manner, a sensor plate is pivoted on the pivot, an upper sensing rod and a lower sensing rod which transversely extend rightwards are arranged on the sensor plate, and the symmetrical middle surfaces of the upper sensing rod and the lower sensing rod penetrate through the axis of a balance shaft of the wheel dynamic balancing machine; and when the sensor plate and the pivot are tilted, the sensor plate is in contact with the microswitch, and the microswitch is connected with the air cylinder. According to the utility model, the induction rod is moved on the side surface of the tire remover to avoid interfering with other parts.

Description

Technical Field

[0001] The utility model relates to the field of automobile maintenance machinery, in particular to a tire stripper. Background Art

[0002] The dynamic balancing test of wheels during automobile maintenance requires the wheel to be placed on a tire remover and the center hole of the wheel to be raised to the same height as the center of the balance shaft of the wheel balancing machine, that is, to find the center.

[0003] The prior art structure is that the tire stripping frame below is lifted to raise the wheel, and the sensing rod of the centering mechanism above is lowered, and the upper and lower clamps are used for centering.

[0004] The balancing machine protective cover is on top, and this operation may touch the balancing machine protective cover and interfere with other components. Utility Model Content

[0005] The utility model provides a tire stripper, which aims to solve the disadvantages of the prior art and avoid interference with other components by using a side motion sensing rod on the tire stripper.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] The tire stripper is characterized by:

[0008] The cylinder rod of the cylinder installed on the frame is connected to the tire removal frame, and the tire removal frame is provided with two horizontally extending support rods arranged left and right, and the symmetrical middle planes of the two support rods pass through the axis of the balance shaft of the wheel dynamic balancing machine;

[0009] A plurality of pulleys are pivotally arranged on the frame to form a pulley block, a steel wire rope is wound around the pulley block to form a closed loop, wherein the pulley at the bottom is a basic pulley, a slider is installed on the steel wire rope extending from the basic pulley, and the slider is adjacent to the basic pulley and located above the basic pulley;

[0010] The slider is located above the tire stripping frame, and the tire stripping frame supports the slider when it rises;

[0011] A sensor is installed on the wire rope, and the sensor and the slider are respectively located on the wire rope on both sides of the base pulley;

[0012] A pivot is hinged on the sensor to swing left and right, and a sensor plate is pivoted on the pivot. The sensor plate has two upper sensing rods and a lower sensing rod extending horizontally to the right, and the upper sensing rod is located above the lower sensing rod to the right;

[0013] When the upper sensing rod is located directly above the lower sensing rod, the symmetrical middle plane of the upper sensing rod and the lower sensing rod passes through the axis of the balance shaft of the wheel dynamic balancing machine;

[0014] A micro switch is also installed on the sensor. When the sensor plate and the pivot are tilted, the sensor plate contacts the micro switch, and the micro switch is connected to the cylinder and controls the cylinder.

[0015] Two vertical guide shafts are installed on the frame of the tire stripper, each guide shaft is installed with a linear bearing, and the tire stripper frame is installed on the two linear bearings.

[0016] A foot valve mounted on the frame connects and controls the cylinder.

[0017] An adjusting screw passes through a screw hole of the slider and is pressed against the steel wire rope.

[0018] The two ends of a tension spring are respectively fixed on the frame and the slide block.

[0019] The base pulley and the second pulley are located at the lower part of the frame, the third pulley and the fourth pulley are located above the base pulley, the fifth pulley and the sixth pulley are located to the left of the third pulley and the fourth pulley, the seventh pulley and the eighth pulley are located to the right of the third pulley and the fourth pulley, and the ninth pulley is located to the right of the seventh pulley and the eighth pulley;

[0020] The wire rope extends upward from the base pulley as the starting point, and successively passes through the fourth pulley, the sixth pulley, the ninth pulley, the eighth pulley, the second pulley, the seventh pulley, the fifth pulley, the third pulley, and the base pulley to form a closed loop;

[0021] The slider is fixed on the wire rope between the base pulley and the fourth pulley;

[0022] The sensor is fixed on the wire rope between the third pulley and the fifth pulley.

[0023] The utility model is beneficial in that:

[0024] The sensing rod of the utility model moves laterally from the side and will not touch the balancing machine cover above, and can achieve the effect that the wheel axis and the balancing shaft axis can finally coincide with each other regardless of the size of the wheel, thereby improving the working efficiency of wheel dynamic balancing detection and wheel lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the steel wire rope of the utility model. DETAILED DESCRIPTION

[0028] In order to more clearly illustrate the technical solution of the utility model, the following will briefly introduce the drawings required for the description. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without creative work. In order to facilitate the understanding of the utility model, the following will be combined with the drawings and specific embodiments to explain the utility model in more detail.

[0029] It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more centered elements can exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more centered elements can exist between them. The terms "upper", "lower", "inner", "outer", "bottom", etc. used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0030] like Figure 1 As shown:

[0031] Two vertical guide shafts 22 are installed on the frame 1 of the tire stripper, and each guide shaft 22 is installed with a linear bearing 23. The tire stripping frame 2 is installed on the two linear bearings 23. There are two laterally extended left and right arranged support rods 21 on the tire stripping frame 2, and the symmetrical middle surface of the two support rods 21 passes through the axis of the balance shaft of the wheel dynamic balancing machine.

[0032] There is also a foot valve 24 on the frame 1, which is connected to and controls a cylinder (not shown in the figure). The cylinder rod of the cylinder is connected to the tire stripping frame 2 so that it can move up and down, and the guide shaft 22 plays a guiding role.

[0033] like Figure 2 As shown:

[0034] Several pulleys are pivotally provided on the frame 1 to form a pulley block, and a steel wire rope 4 is wound around the pulley block to form a closed loop, wherein the lowermost pulley is a base pulley 71, and a slider 3 is installed on the steel wire rope 4 extending from the base pulley 71, and the slider 3 is adjacent to the base pulley 71 and is located above the base pulley 71.

[0035] An adjusting screw passes through the screw hole of the slider 3 and is pressed against the wire rope 4. In this way, the height of the slider 3 can be adjusted on the wire rope 4 by loosening the adjusting screw, and the slider 3 can be fixed on the wire rope 4 by tightening the adjusting screw.

[0036] The slide block 3 is located above the tire stripping frame 2, and when the tire stripping frame 2 rises, it pushes against the slide block 3 and rises together.

[0037] The two ends of a tension spring 5 are respectively fixed on the frame 1 and the slider 3 to give the slider 3 a pre-tightening force.

[0038] A sensor 6 is installed on the wire rope 4, and a pivot 64 is hinged on the sensor 6 so as to swing left and right, that is, the pivot 64 can swing left and right around the hinge point, and a sensor plate 60 is pivoted on the pivot 64, that is, the sensor plate 60 can rotate around the pivot 64, and the sensor plate 60 has two upper sensing rods 61 and lower sensing rods 62 extending horizontally to the right, and the upper sensing rod 61 is located at the upper right of the lower sensing rod 62, that is, the sensor plate 60 is inclined to the right.

[0039] When the sensor plate 60 rotates around the pivot 64 and the upper sensing rod 61 is located directly above the lower sensing rod 62, the symmetrical middle planes of the upper sensing rod 61 and the lower sensing rod 62 pass through the axis of the balance shaft of the wheel dynamic balancing machine. That is, the intersection of the symmetrical middle planes of the two supporting rods 21 and the symmetrical middle planes of the two sensing rods 61 is the axis of the balance shaft of the wheel dynamic balancing machine.

[0040] A micro switch 63 is also installed on the sensor 6. When the sensor plate 60 and the pivot 64 are tilted, the sensor plate 60 contacts the micro switch 63, and the micro switch 63 is connected to the cylinder and controls the cylinder.

[0041] The structure of the steel wire rope 4 and the pulley block is:

[0042] The base pulley 71 and the second pulley 72 are located at the lower part of the frame 1, the third pulley 73 and the fourth pulley 74 are located above the base pulley 71, the fifth pulley 75 and the sixth pulley 76 are located to the left of the third pulley 73 and the fourth pulley 74, the seventh pulley 77 and the eighth pulley 78 are located to the right of the third pulley 73 and the fourth pulley 74, and the ninth pulley 79 is located to the right of the seventh pulley 77 and the eighth pulley 78.

[0043] The wire rope 4 extends upward from the base pulley 71, and successively passes around the fourth pulley 74, the sixth pulley 76, the ninth pulley 79, the eighth pulley 78, the second pulley 72, the seventh pulley 77, the fifth pulley 75, the third pulley 73, and the base pulley 71 to form a closed loop.

[0044] The slider 3 is fixed on the wire rope 4 between the base pulley 71 and the fourth pulley 74 .

[0045] The sensor 6 is fixed on the wire rope 4 between the third pulley 73 and the fifth pulley 75 .

[0046] In actual use:

[0047] The wheel is placed on the two support rods 21 , and the wheel will be automatically centered, and the central symmetric plane of the wheel is the symmetric middle plane of the two support rods 21 .

[0048] Because the slider 3 rises and drives the sensor 6 to move to the right, the sensor rod 61 will eventually contact the wheel. Therefore, the height of the slider 3 on the wire rope 4 needs to be adjusted according to the size of the wheel.

[0049] Then, the foot valve 24 is stepped on, the cylinder is started, and the tire removal frame 2 is driven to rise, that is, the wheel rises. When the tire removal frame 2 rises to contact the slider 3, it will press the slider 3 to rise together, and the slider 3 drives the wire rope 4 to move around the pulley block, and the wire rope 4 drives the sensor 6 to move to the right until the upper sensing rod 61 contacts the wheel first, and the wheel rises and presses the upper sensing rod 61, causing the sensor plate 60 to rotate around the pivot 64 until the upper sensing rod 61 is located directly above the lower sensing rod 62. The upper sensing rod 61 and the lower sensing rod 62 are pressed by the wheel and drive the sensor plate 60 and the pivot 64 are tilted, the sensor plate 60 contacts the micro switch 63, the micro switch 63 stops the cylinder, and the wheel stops rising. At this time, the upper sensing rod 61 and the lower sensing rod 62 both contact the circumference of the wheel, and the symmetrical middle surface of the upper sensing rod 61 and the lower sensing rod 62 passes through the axis of the balance shaft of the wheel dynamic balancing machine. In this way, since the intersection of the symmetrical middle surface of the two supporting rods 21 and the symmetrical middle surface of the two sensing rods 61 is the axis of the balance shaft of the wheel dynamic balancing machine, the wheel axis is the axis of the balance shaft of the wheel dynamic balancing machine at this time. Then the wheel dynamic balancing detection operation is performed.

[0050] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the embodiments can be referred to each other. The above description of the disclosed embodiments enables professionals and technicians in this field to implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in this field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. A tire stripper, characterized in that: The cylinder rod of the air cylinder installed on the frame is connected to the tire removing frame, and there are two horizontally extending support rods arranged left and right on the tire removing frame, and the symmetrical middle surface of the two support rods passes through the axis of the balance shaft of the wheel dynamic balancing machine; a plurality of pulleys are pivotally arranged on the frame to form a pulley block, and a steel wire rope is wound around the pulley block to form a closed loop, wherein the lowermost pulley is the basic pulley, and a slider is installed on the steel wire rope extending from the basic pulley, and the slider is adjacent to the basic pulley and located above the basic pulley; the slider is located above the tire removing frame, and the tire removing frame supports the slider when it rises; a sensor is installed on the steel wire rope, and the sensor The sensor and the slider are respectively located on the steel wire ropes on both sides of the base pulley; a pivot is hinged on the sensor so as to swing left and right, and a sensor plate is pivoted on the pivot, and the sensor plate has two upper sensing rods and lower sensing rods extending horizontally to the right, and the upper sensing rod is located to the upper right of the lower sensing rod; when the upper sensing rod is located directly above the lower sensing rod, the symmetrical middle surface of the upper sensing rod and the lower sensing rod passes through the axis of the balance shaft of the wheel dynamic balancing machine; a micro switch is also installed on the sensor, and when the sensor plate and the pivot are tilted, the sensor plate contacts the micro switch, and the micro switch is connected to the cylinder and controls the cylinder.

2. The tire stripper according to claim 1, characterized in that: Two vertical guide shafts are installed on the frame of the tire stripper, each guide shaft is installed with a linear bearing, and the tire stripper frame is installed on the two linear bearings.

3. The tire stripper according to claim 1, characterized in that: A foot valve mounted on the frame connects and controls the cylinder.

4. The tire stripper according to claim 1, characterized in that: An adjusting screw passes through a screw hole of the slider and is pressed against the steel wire rope.

5. The tire stripper according to claim 1, characterized in that: The two ends of a tension spring are respectively fixed on the frame and the slide block.

6. The tire stripper according to claim 1, characterized in that: The basic pulley and the second pulley are located at the lower part of the frame, the third pulley and the fourth pulley are located above the basic pulley, the fifth pulley and the sixth pulley are located on the left of the third pulley and the fourth pulley, the seventh pulley and the eighth pulley are located on the right of the third pulley and the fourth pulley, and the ninth pulley is located on the right of the seventh pulley and the eighth pulley; the wire rope extends upward from the basic pulley as the starting point, and successively passes around the fourth pulley, the sixth pulley, the ninth pulley, the eighth pulley, the second pulley, the seventh pulley, the fifth pulley, the third pulley, and the basic pulley to form a closed loop; the slider is fixed on the wire rope between the basic pulley and the fourth pulley; the sensor is fixed on the wire rope between the third pulley and the fifth pulley.

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