Bearing wheel convenient to replace

Abstract

The utility model relates to the technical field of excavator accessories, in particular to a load-bearing wheel convenient to replace, which comprises a first column body, second column bodies are fixedly connected to two ends of the first column body, a positioning column movably penetrates through the middle of the outer wall of each second column body, the first column body is of a hollow structure, and a groove is formed in the middle of the outer wall of each first column body. A rotating shaft is fixed to the inner end of the rotating block, and the outer end of the rotating shaft movably penetrates through the side wall of the first column body and is rotationally connected with the inner wall of the first column body. The hexagonal positioning column can be contained in the inner cavity of the first column body and the inner cavity of the second column body, so that the bearing wheel is arranged at the installation position during installation, the installation position is arranged in the positioning groove matched with the positioning column, then the rotating block is rotated, the first bevel gear is driven to rotate, and then the second bevel gear is driven to rotate; therefore, the screw rod drives the positioning column to move outwards to be inserted into the positioning groove, quick positioning connection is achieved, and disassembly and assembly are convenient and quick.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator accessories, in particular to a load-bearing wheel which is easy to replace. Background Art

[0002] An excavator, also known as an excavating machine or an earth-moving machine, is an earth-moving machine that uses a bucket to dig materials above or below the surface of the machine and load them into a transport vehicle or unload them to a stockpile.

[0003] In actual use, the existing excavator uses the load-bearing wheels to support the excavator and limit the crawler tracks during the rotation process. When the existing load-bearing wheels are connected to the excavator body, they are connected through a cage, and the two ends of the load-bearing wheels fit the cage and then fastened with bolts. However, when the load-bearing wheels are damaged, the bolts need to be removed during the replacement operation, which is troublesome and affects the replacement effect. In addition, the removal and assembly of the bolts can easily damage the threads, affecting the stability of the subsequent connection. Therefore, we propose a load-bearing wheel that is easy to replace. Utility Model Content

[0004] The utility model aims to provide a load-bearing wheel which is easy to replace, thereby solving the problems raised in the background technology.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a load-bearing wheel that is easy to replace, comprising a first column, both ends of the first column are fixedly connected to the second column, a positioning column movably penetrates the middle of the outer wall of the second column, the first column is a hollow structure, a groove is provided in the middle of the outer wall of the first column, a rotating block is provided in the groove, a rotating shaft is fixed to the inner end of the rotating block, the outer end of the rotating shaft movably penetrates the side wall of the first column and is rotatably connected to the inner wall of the first column, a first bevel gear is fixedly sleeved on the outer wall of the rotating shaft, second bevel gears are meshed on both sides of the outer wall of the first bevel gear, a screw is fixedly connected to the outer end of the second bevel gear, a threaded hole is provided at the inner end of the positioning column, the screw is inserted into the threaded hole and threadedly meshed.

[0006] By adopting the above technical solution, the rotating block is rotated to drive the first bevel gear to rotate, thereby driving the second bevel gear to rotate, and then the screw is rotated. The threaded drive allows the positioning column to be received into the second column, and then the load-bearing wheel is placed on the retaining frame, and the positioning column is aligned with the positioning groove provided on the retaining frame. The rotating block is then rotated to make the first bevel gear rotate in the opposite direction, thereby enabling the screw to rotate in the opposite direction, thereby driving the positioning column to move outward, so that the positioning column can be inserted into the positioning groove to achieve a stable positioning connection. When disassembly is required, the rotating block can be rotated again, thereby facilitating the disassembly and assembly operation, thereby ensuring that the replacement of the load-bearing wheel is convenient and quick.

[0007] As a preferred embodiment of the present invention, the outer end surface of the positioning column is provided with an arc chamfer.

[0008] By adopting the above technical solution and setting the circular chamfer, the positioning column can slide directly along the circular chamfer when there is a slight deviation when inserted into the slot, further improving the convenience of the connection operation and avoiding jamming.

[0009] As a preferred embodiment of the utility model, a bearing is fixedly sleeved on the outer wall of the screw rod, and the outer wall of the bearing is fixedly connected to the inner wall of the first cylinder cavity through a connecting block.

[0010] By adopting the above technical solution and setting the bearing, the screw has high rotation stability.

[0011] As a preferred implementation of the utility model, the outer end surface of the rotating block is placed in the groove.

[0012] By adopting the above technical solution, it is avoided that the rotating block extends out of the groove and affects the use of the load-bearing wheel.

[0013] As a preferred embodiment of the present utility model, an outer end surface of the outer wall of the rotating block is provided with an inner hexagonal groove.

[0014] By adopting the above technical solution, the setting of the hexagonal groove makes it convenient to operate the rotating block with the help of a hexagonal wrench, thereby making the operation convenient.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] The technical solution of the present application is a load-bearing wheel that is easy to replace. By utilizing a hexagonal positioning column that can be received in the inner cavity of the first column and the second column, the load-bearing wheel is placed at the installation position during installation, and the installation position is set in the positioning groove adapted by the positioning column. Then, by rotating the rotating block, the first bevel gear is driven to rotate, and then the second bevel gear is driven to rotate, so that the screw drives the positioning column to move outward and insert into the positioning groove, thereby realizing a quick positioning connection, thereby making disassembly and assembly convenient and quick, and improving the convenience of the follow-up replacement operation;

[0017] By providing a circular chamfer at the outer end of the positioning column, the positioning column can slide directly into the slot along the circular chamfer when there is a slight deviation, further improving the convenience of the connection operation and avoiding jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of the load-bearing wheel that is easy to replace in the utility model;

[0020] Figure 2 It is a schematic cross-sectional structure diagram of the load-bearing wheel which is easy to replace in the utility model;

[0021] Figure 3 The utility model is a schematic diagram of the positioning column structure of the load-bearing wheel which is easy to replace.

[0022] In the figure:

[0023] 1. First cylinder; 11. Second cylinder; 12. Groove; 13. Rotating block; 14. Hexagonal groove; 15. Rotating shaft; 16. First bevel gear; 17. Second bevel gear; 18. Screw; 19. Bearing;

[0024] 2. Positioning column; 21. Circular chamfer; 22. Threaded hole. DETAILED DESCRIPTION

[0025] See also Figure 1-3 The utility model provides a technical solution: a load-bearing wheel that is easy to replace, comprising a first column 1, both ends of the first column 1 are fixedly connected to the second column 11, a positioning column 2 is movably penetrated in the middle of the outer wall of the second column 11, the first column 1 is a hollow structure, a groove 12 is opened in the middle of the outer wall of the first column 1, a rotating block 13 is arranged in the groove 12, a rotating shaft 15 is fixed to the inner end of the rotating block 13, the outer end of the rotating shaft 15 movably penetrates the side wall of the first column 1 and is rotatably connected to the inner wall of the first column 1, a first bevel gear 16 is fixedly sleeved on the outer wall of the rotating shaft 15, second bevel gears 17 are meshed on both sides of the outer wall of the first bevel gear 16, a screw 18 is fixedly connected to the outer end of the second bevel gear 17, a threaded hole 22 is opened at the inner end of the positioning column 2, the screw 18 is inserted into the threaded hole 22 and is threadedly meshed;

[0026] In actual use, the rotating block 13 is rotated to drive the first bevel gear 16 to rotate, thereby driving the second bevel gear 17 to rotate, and then the screw 18 is rotated, and the positioning column 2 can be stored in the second column 11 by threaded driving, and then the load-bearing wheel is placed on the retaining frame, and the positioning column 2 is aligned with the positioning groove provided on the retaining frame, and then the rotating block 13 is rotated to make the first bevel gear 16 rotate in the opposite direction, so that the screw 18 can rotate in the opposite direction, so as to drive the positioning column 2 to move outward, so that the positioning column 2 can be inserted into the positioning groove to achieve a stable positioning connection, and then when it needs to be disassembled, the rotating block 13 can be rotated again, so that the disassembly and assembly operation is convenient, thereby ensuring that the replacement of the load-bearing wheel is convenient and quick;

[0027] Furthermore, an inner hexagonal groove 14 is provided on the outer end surface of the outer wall of the rotating block 13. The inner hexagonal groove 14 makes it convenient to operate the rotating block 13 with a hexagonal wrench, thereby making the operation convenient;

[0028] Furthermore, the outer end surface of the rotating block 13 is placed in the groove 12, thereby preventing the rotating block 13 from extending out of the groove 12 and affecting the use of the load-bearing wheel;

[0029] It is worth mentioning that the outer wall of the screw 18 is fixedly sleeved with a bearing 19, and the outer wall of the bearing 19 is fixedly connected to the inner wall of the inner cavity of the first cylinder 1 through a connecting block. The arrangement of the bearing 19 makes the screw 18 have high rotation stability;

[0030] like Figure 1 As shown; the outer end face of the positioning column 2 is provided with an arc chamfer 21. The setting of the arc chamfer 21 enables the positioning column 2 to slide directly into the slot along the arc chamfer 21 when a slight deviation occurs, further improving the convenience of the connection operation and avoiding jamming.

[0031] The implementation principle of the load-bearing wheel that is easy to replace in the present application is: in actual use, the rotating block 13 is rotated to drive the first bevel gear 16 to rotate, thereby driving the second bevel gear 17 to rotate, and then the screw 18 is rotated, and the threaded drive is used to allow the positioning column 2 to be received into the second column 11, and then the load-bearing wheel is placed on the retaining frame, and the positioning column 2 is aligned with the positioning groove provided on the retaining frame, and then the rotating block 13 is rotated to make the first bevel gear 16 rotate in the opposite direction, thereby enabling the screw 18 to rotate in the opposite direction, thereby driving the positioning column 2 to move outward, so that the positioning column 2 can be inserted into the positioning groove to achieve a stable positioning connection, and then when disassembly is required, the rotating block 13 can be rotated again, thereby facilitating the disassembly and assembly operation, thereby ensuring that the replacement of the load-bearing wheel is convenient and quick.

[0032] In addition, the components included in the load-bearing wheel that is easy to replace in the utility model are all universal standard parts or components known to technical personnel in this field. The structure and principle thereof can be known to technical personnel in this field through technical manuals or through conventional experimental methods. In the idle part of the device, all the above-mentioned electrical components, which refer to power elements, electrical components, and adapted monitoring computers and power supplies are connected through wires. The specific connection means should refer to the following working principle. The electrical connection is completed in the working order of each electrical component. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and no longer explains the electrical control.

Claims

1. A load-bearing wheel that is easy to replace, comprising a first column (1), characterized in that: The first column (1) is fixedly connected to the second column (11) at both ends, and a positioning column (2) is movably penetrated in the middle of the outer wall of the second column (11). The first column (1) is a hollow structure, and a groove (12) is provided in the middle of the outer wall of the first column (1). A rotating block (13) is arranged in the groove (12), and a rotating shaft (15) is fixed to the inner end of the rotating block (13). The outer end of the rotating shaft (15) movably penetrates the side wall of the first column (1) and is rotatably connected to the inner wall of the first column (1). The outer wall of the rotating shaft (15) is fixedly sleeved with a first bevel gear (16), and the outer sides of the outer wall of the first bevel gear (16) are meshed with second bevel gears (17), and the outer end of the second bevel gear (17) is fixedly connected with a screw rod (18), and a threaded hole (22) is provided at the inner end of the positioning column (2), and the screw rod (18) is inserted into the threaded hole (22) and is threadedly meshed.

2. The load-bearing wheel that is easy to replace according to claim 1, characterized in that: The outer end surface of the positioning column (2) is provided with a circular arc chamfer (21).

3. The load-bearing wheel that is easy to replace according to claim 1, characterized in that: The outer wall of the screw rod (18) is fixedly sleeved with a bearing (19), and the outer wall of the bearing (19) is fixedly connected to the inner wall of the inner cavity of the first column (1) via a connecting block.

4. The load-bearing wheel that is easy to replace according to claim 1, characterized in that: The outer end surface of the rotating block (13) is placed in the groove (12).

5. The load-bearing wheel that is easy to replace according to claim 1, characterized in that: An inner hexagonal groove (14) is formed on the outer end surface of the outer wall of the rotating block (13).

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