Tire dismounting cart

Abstract

The utility model relates to a tire dismounting cart, and belongs to the field of tire dismounting equipment. The structure comprises a base (1) and a rack, the rack is arranged at the upper end of the base (1), the rack comprises positioning plates (8), a lifting assembly (4) and a connecting beam (9), the positioning plates (8) are vertically arranged, arc-shaped openings are formed in the upper ends of the positioning plates (8), the number of the positioning plates (8) is at least two, the positioning plates (8) are arranged at intervals, and the positioning plates (8) are connected into a whole through the connecting beam (9). The lifting assembly (4) can drive the positioning plate (8) to move in the height direction of the base (1). According to the structure, the lifting assembly (4) drives the positioning plate (8) to move in the height direction of the base (1) to make direct contact with a tire, the tire is supported through the arc-shaped opening of the positioning plate (8), and the base (1) is pushed to separate the tire from a vehicle. The problems that when an existing large-size tire is maintained, dismounting and mounting are not convenient, and safety accidents are likely to happen are solved.

Description

Technical Field

[0001] This utility model relates to a tire disassembly and assembly trolley, belonging to the field of tire disassembly and assembly equipment. Background Technology

[0002] When changing tires or performing other maintenance tasks such as wheel removal and bearing clearance adjustment on our factory's BJ3364 mining trucks and BJZ5365 water trucks, it is often necessary to disassemble (install) the tires. The tires used on the 177# and 176# water trucks used for adding water to the drilling rigs are 14.00-R24 type, with a tread diameter of approximately 1100mm. During tire replacement, wheel removal, and bearing clearance adjustment, due to the large tire size and weight (dual rear tires), and the lack of specialized tools for disassembling and installing these tires, manual operation is required. This process generally requires multiple people to assist, using pry bars and other auxiliary means to remove the tires with considerable effort. A slight lapse in attention can easily lead to safety accidents. Utility Model Content

[0003] The technical problem to be solved by this utility model is that the disassembly and assembly of large-size tires are inconvenient and prone to safety accidents during existing maintenance operations.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a tire disassembly and assembly trolley, including a base and a frame. The frame is set on the upper end of the base, and the frame includes a positioning plate, a lifting component and a connecting beam. The positioning plate is vertically arranged and has an arc-shaped opening at the upper end. There are at least two positioning plates and they are spaced apart. The positioning plates are connected into one piece by the connecting beam. The lifting component can drive the positioning plates to move along the height direction of the base.

[0005] The base of the aforementioned device is a frame structure, and pulleys are spaced apart at the lower end.

[0006] The device also includes a handle, which is T-shaped and has its small end connected to the middle of the base on the axial side of the opening of the positioning plate.

[0007] The device also includes a limiting component, which allows the platform to be mounted on the base.

[0008] Furthermore, the limiting component in the above-mentioned device includes a limiting plate and a limiting block. The limiting plates are vertically spaced on the base, and the limiting blocks are set on the positioning plate of the platform. There are at least two limiting plates and limiting blocks, and at least two limiting blocks are located on both sides of the corresponding limiting plate.

[0009] Furthermore, the aforementioned device comprises four limiting plates arranged in a rectangular shape, with the number of limiting blocks equal to the number of limiting plates, and these blocks are located inside the limiting plates.

[0010] In the aforementioned device, a baffle is vertically installed on the upper end face of the base near the axial side of the opening of the positioning plate.

[0011] In the aforementioned device, a positioning block is provided at the end of the connecting beam on the axial side of the opening of the positioning plate.

[0012] Furthermore, the positioning block in the above-mentioned device is formed by bending the end of the connecting beam inward.

[0013] The lifting assembly in the above-mentioned device includes a hydraulic cylinder. The lower end of the lifting assembly is connected to the upper end of the base, and the extended end of the lifting assembly is connected to the connecting beam directly above.

[0014] The beneficial effects of this utility model are: the structure is inexpensive to manufacture, simple and convenient to use, environmentally friendly, safe and reliable, and has a long service life. This device drives the positioning plate to move along the height direction of the base via a lifting assembly, so that the arc-shaped opening of the positioning plate directly contacts the outer side of the suspended tire, achieving tire support and fixation. Then, pushing the base separates the tire from the vehicle, enabling quick tire installation and removal. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the main structure of this utility model.

[0017] Figure 3 This is an exploded view of the present invention.

[0018] Figure 4 This is a top view of the structure of this utility model.

[0019] Attached reference numerals: 1 is base, 2 is pulley, 3 is limiting plate, 4 is lifting assembly, 5 is baffle, 6 is handle, 7 is reinforcing plate, 8 is positioning plate, 9 is connecting beam, 10 is positioning block, and 11 is limiting block. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] like Figures 1 to 4As shown, this utility model discloses a tire mounting and dismounting trolley, comprising a base 1 and a frame. The frame is disposed on the upper end of the base 1 and includes positioning plates 8, a lifting assembly 4, and a connecting beam 9. The positioning plates 8 are vertically arranged and have an arc-shaped opening at their upper ends. There are at least two positioning plates 8 arranged at intervals, and the positioning plates 8 are connected as a whole by the connecting beam 9. The lifting assembly 4 can drive the positioning plates 8 to move along the height direction of the base 1. Those skilled in the art will understand that the base 1 of this device is mainly used for support and can actually be made of steel plate or frame structure. The frame is mainly used to place the tires. Therefore, according to the circumference of the tires, a thin plate with a thickness of 5mm is used to cut the positioning plates 8, and an arc-shaped opening matching the circumference of the tire is opened at the upper end of the positioning plates 8. At least two positioning plates 8 are arranged at intervals, ensuring that the distance between the outermost positioning plates 8 is equidistant from the width of the two tires, facilitating tire support and fixation. The positioning plates 8 are connected as a whole by connecting beams 9 to ensure the structural strength of the entire platform. In practice, a reinforcing plate 7 can be further provided at the lower end of the positioning plate, and the reinforcing plate 7 can also be a frame structure. The lifting component 4 can drive the positioning plates 8 to move along the height direction of the base 1, so that the tires can be suspended in the air during disassembly and assembly, which is convenient for disassembly and assembly.

[0022] Preferably, the base 1 in the above-mentioned device is a frame structure, and pulleys 2 are spaced apart at the lower end. Those skilled in the art will understand that, in order to reduce the weight of the base 1, the base 1 is preferably a frame structure, which can actually be welded from 1480mm × 900mm channel steel; at the same time, for ease of movement, pulleys 2 are preferably spaced apart at the lower end of the base 1, and can actually be placed at corners. The pulleys 2 are preferably casters. To reduce costs, four φ32mm, 110mm long axles can be welded to the four corners of the frame of the base 1, and then four φ200mm, 12mm thick iron pulleys 2 with rolling bearings can be installed on the axles.

[0023] The device also includes a handle 6, which is T-shaped and has its smaller end connected to the middle of the base 1 on the axial side of the opening of the positioning plate 8. Those skilled in the art will understand that, to facilitate the movement of the base 1, the device preferably includes a handle 6, and more preferably, the handle 6 is T-shaped with its smaller end connected to the middle of the base 1 on the axial side of the opening of the positioning plate 8. Preferably, the handle 6 is made of 1200mm thick, φ30 steel bars and is hinged to the base 1 by a pin.

[0024] Preferably, the above-mentioned device further includes a limiting component, which allows the platform to be mounted on the base 1. Those skilled in the art will understand that, since the tire is placed on the platform, specifically within the opening of the positioning plate 8, to prevent the tire from rolling and causing the entire platform to move radially along the tire when the base 1 is moved, thus preventing an accident, the device preferably includes a limiting component. This limiting component allows the platform to be mounted on the base 1. Specifically, this limitation means that the platform is radially limited to the base 1 along the tire, not completely confined to the base 1; it is necessary to ensure that the platform can move up and down along the height direction of the base 1.

[0025] Preferably, the limiting component in the above-mentioned device includes a limiting plate 3 and a limiting block 11. The limiting plates 3 are vertically spaced on the base 1, and the limiting blocks 11 are mounted on the positioning plate 8 of the frame. There are at least two limiting plates 3 and limiting blocks 11, and at least two limiting blocks 11 are located on opposite sides of the corresponding limiting plate 3. Those skilled in the art will understand that the preferred structure of the limiting component in this device specifically includes limiting plates 3 and limiting blocks 11. The limiting plates 3 are vertically spaced on the base 1, and the limiting blocks 11 are mounted on the positioning plate 8 of the frame, which can be fixed by welding. There are at least two limiting plates 3 and limiting blocks 11, and preferably the number of limiting plates 3 and limiting blocks 11 is the same, and they are arranged in a one-to-one correspondence. Furthermore, at least two limiting blocks 11 are located on both sides of the corresponding limiting plate 3, that is, one limiting plate 3 corresponds to one limiting block 11. If there are two limiting plates 3, and one limiting block 11 is located on the outside of one limiting plate 3, then the other limiting block 11 must be located on the opposite side, that is, the inside, of the other limiting plate 3. When the number of limiting plates 3 is greater than or equal to 3, then there must be one limiting block 11 located on the outside of one limiting plate 3, and the remaining limiting block 11 located on the inside of one limiting plate 3. By limiting the position of the limiting block 11 and the limiting plate 3, the limiting block 11 and the limiting plate 3 cooperate to play the role of limiting the platform.

[0026] Preferably, the limiting plates 3 in the above-mentioned device are four in number and arranged in a rectangular shape. The number of limiting blocks 11 is equal to the number of limiting plates 3 and they are located inside the limiting plates 3. It will be understood by those skilled in the art that the device preferably has four limiting plates 3, and the number of limiting blocks 11 corresponds to the number of limiting plates 3, that is, there are four limiting plates 3 and four limiting blocks 11. The limiting plates 3 are arranged in a rectangular shape, and the limiting blocks 11 are located inside the limiting plates 3. In practice, the limiting blocks 11 can be placed close to the inner wall of the limiting plates 3.

[0027] Preferably, in the above-described device, a baffle 5 is vertically provided on the upper end face of the base 1 on the axial side of the opening of the positioning plate 8. Those skilled in the art will understand that, in order to achieve axial tire limiting, this device has a baffle 5 vertically provided on the upper end face of the base 1 on the axial side of the opening of the positioning plate 8, that is, a baffle 5 is provided on the handle 6 side.

[0028] Preferably, in the above-described device, a positioning block 10 is provided at the end of the connecting beam 9 on the axial side near the opening of the positioning plate 8. Those skilled in the art will understand that, to prevent the tire from falling to the pulling side due to inertia during pulling, this device preferably provides a positioning block 10 at the end of the connecting beam 9 on the axial side near the opening of the positioning plate 8, that is, a positioning block 10 is provided at the end of the handle 6, and the positioning block 10 is perpendicular to the connecting beam 9, and is located away from the end of the connecting beam 9 and close to the opening of the positioning plate 8. Since the connecting beam 9 is multi-layered, a positioning block 10 can actually be provided at the end of the uppermost connecting beam 9.

[0029] Preferably, the positioning block 10 in the above-described device is formed by bending the end of the connecting beam 9 inward. Those skilled in the art will understand that, in order to ensure the strength of the connection between the positioning block 10 and the end of the connecting beam 9, the positioning block 10 is preferably formed by bending the end of the connecting beam 9 inward, that is, the positioning block 10 and the connecting beam 9 are integrally formed.

[0030] Preferably, the lifting component 4 in the above-mentioned device includes a hydraulic cylinder. The lower end of the lifting component 4 is connected to the upper end of the base 1, and the extended end of the lifting component 4 is connected to the connecting beam 9 directly above. Those skilled in the art will understand that the lifting component 4 preferably includes a hydraulic cylinder, specifically a jack. In practice, the lower end of the lifting component 4 is connected to the upper end of the base 1, and the extended end of the lifting component 4 is connected to the connecting beam 9 directly above. To ensure proper connection and positioning, it is preferable that the extended end of the lifting component 4 and the connecting beam 9 are both channel steel structures, and the connecting beam 9 is inverted so that the extended end of the lifting component 4 extends precisely into the opening of the connecting beam 9.

[0031] Operating procedures for this device

[0032] First, after the rear axle of the vehicle is lifted off the ground, remove the tire bolts and push this device under the two rear wheels of the vehicle.

[0033] The second step is to apply the lifting component 4 to the positioning plate 8 until the bearings between the dual tires and the wheel hub and the rear axle half shaft guide are relaxed.

[0034] The third step is to place a pry bar on the frame and between the two tires, and gently pry it to move the tires and the device out together.

[0035] The installation method is the opposite.

Claims

1. A tire removal and installation trolley, characterized in that: The system includes a base (1) and a platform. The platform is located on the upper part of the base (1) and includes a positioning plate (8), a lifting assembly (4) and a connecting beam (9). The positioning plate (8) is vertically arranged and has an arc-shaped opening at the upper end. There are at least two positioning plates (8) and they are spaced apart. The positioning plates (8) are connected together by the connecting beam (9). The lifting assembly (4) can drive the positioning plates (8) to move along the height direction of the base (1).

2. The tire removal and installation trolley according to claim 1, characterized in that: The base (1) is a frame structure, and pulleys (2) are spaced apart at the lower end.

3. The tire removal and installation trolley according to claim 1, characterized in that: It also includes a handle (6), which is a T-shaped structure and its small end is connected to the middle of the base (1) on the axial side of the opening of the positioning plate (8).

4. A tire removal and installation trolley according to claim 1, characterized in that: It also includes a limiting component that causes the stand to be mounted on the base (1).

5. A tire removal and installation trolley according to claim 4, characterized in that: The limiting component includes a limiting plate (3) and a limiting block (11). The limiting plate (3) is vertically spaced on the base (1), and the limiting block (11) is set on the positioning plate (8) of the platform. There are at least two limiting plates (3) and limiting blocks (11), and at least two limiting blocks (11) are located on both sides of the corresponding limiting plate (3).

6. A tire removal and installation trolley according to claim 5, characterized in that: The limiting plate (3) consists of four pieces arranged in a rectangular shape. The number of limiting blocks (11) is equal to that of the limiting plate (3), and they are located inside the limiting plate (3).

7. A tire removal and installation trolley according to claim 1, characterized in that: A baffle (5) is vertically installed on the upper end face of the base (1) on the axial side of the opening of the positioning plate (8).

8. A tire removal and installation trolley according to claim 1, characterized in that: The connecting beam (9) is provided with a positioning block (10) at the end of the axial side of the opening of the positioning plate (8).

9. A tire removal and installation trolley according to claim 8, characterized in that: The positioning block (10) is formed by bending the end of the connecting beam (9) inward.

10. A tire removal and installation trolley according to claim 1, characterized in that: The lifting assembly (4) includes a hydraulic cylinder. The lower end of the lifting assembly (4) is connected to the upper end of the base (1), and the extended end of the lifting assembly (4) is connected to the connecting beam (9) directly above.

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