Crawler wheel for replacing walking rotary cultivator

Abstract

The utility model relates to a crawler wheel for replacing a walking rotary cultivator, and belongs to the technical field of agricultural instruments. The device mainly comprises an I-shaped bottom plate, a connecting block, a driven wheel, a supporting table, a rotating shaft, a first connecting plate, a driving wheel, a crawler belt assembly, an adjusting block, a telescopic assembly and a second connecting plate. When the driving wheel and the driven wheel are abraded and need to be replaced, a worker firstly takes down the wheel shaft and the second connecting plate of the rotary cultivator, then disassembles the crawler belt assembly, replaces a new driving wheel and a new driven wheel after disassembly is completed, and winds the crawler belt assembly on the driving wheel and the driven wheel after replacement is completed. Then the whole device is mounted on the rotary cultivator through the second connecting plate and the fastening bolt, mounting and dismounting are convenient and fast, professional knowledge and tools are not needed, time and labor are saved, the replacement difficulty and time cost are reduced, the downtime is shortened, the rotary cultivator recovers the working state as soon as possible, and production losses caused by long-time downtime are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, and in particular relates to a track wheel for replacing a hand-held rotary tiller. Background Art

[0002] The track wheels are connected to the tiller's axle. When the tiller is working in the field, the track wheels will be in contact with the soil for a long time and bear great pressure and friction, which will cause wear on the track wheel surface and damage to the internal structure. When the wear or damage reaches a certain level, the track wheels need to be replaced to ensure the normal operation of the tiller and extend its service life.

[0003] The traditional process of replacing a track wheel on a rotary tiller is relatively complicated, requiring the disassembly of multiple parts and the use of specialized tools. This process requires specialized knowledge and tools, which can be challenging for some users. This not only increases the difficulty and time required for replacement, but can also cause unnecessary damage to other parts of the rotary tiller. Therefore, a track wheel replacement for a walk-behind rotary tiller is proposed. Summary of the Invention

[0004] In order to overcome the problems that the replacement process of the traditional track wheel of a rotary tiller is relatively complicated, the replacement is difficult, the time cost is high, and it may also cause unnecessary damage to other parts of the rotary tiller, the utility model provides a track wheel for replacing a hand-held rotary tiller; when the driving wheel and the driven wheel are worn and need to be replaced, the staff first removes the wheel axle and the second connecting plate of the rotary tiller, and then disassembles the track assembly. After disassembly, the new driving wheel and driven wheel can be replaced. After replacement, the track assembly is wound around the driving wheel and the driven wheel, and then the entire device is installed on the rotary tiller through the second connecting plate and the fastening bolts. The installation and disassembly are convenient and quick, which reduces the difficulty and time cost of replacement.

[0005] To achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a track wheel for replacing a walk-behind rotary tiller mainly includes an I-shaped base plate, a connecting block, a driven wheel, a support platform, a rotating shaft, a first connecting plate, a driving wheel, a track assembly, an adjusting block, a telescopic assembly, and a second connecting plate. The connecting block connects the I-shaped base plate, the driven wheel is rotatably mounted on the I-shaped base plate, the support platform is mounted on the top of the I-shaped base plate, the rotating shaft is rotatably mounted on the support platform through a bearing seat, the first connecting plate is mounted on the end of the rotating shaft, the driving wheel is mounted on the end of the rotating shaft through the first connecting plate and a fastening bolt, a bulge is provided on the driving wheel and the driven wheel, the track assembly is wound on the bulge, the adjusting block is mounted on the top of the connecting block, the telescopic assembly is mounted between the adjusting blocks, the second connecting plate is mounted on the wheel axle of the rotary tiller, and the wheel axle is mounted between the driving wheel through the second connecting plate and a fastening bolt.

[0006] The described crawler assembly includes a first connecting block, a second connecting block, a pin shaft, a limiting plate, and a connecting plate. The second connecting block is installed at both ends of the first connecting block. The pin shaft connects the first connecting block and the second connecting block. The limiting plate is installed on the second connecting block. A rectangular groove is provided inside the limiting plate. The connecting plate is installed on the first connecting block and is located inside the rectangular groove, with a convex block extending outside the rectangular groove.

[0007] The described telescopic assembly includes a sleeve, a telescopic rod, and a locking bolt. The sleeve and the telescopic rod are installed on an adjusting block. The inside of the sleeve has a cavity structure. The telescopic rod is slidably installed inside the sleeve. The locking bolt fixedly connects the sleeve and the telescopic rod.

[0008] The beneficial effects of the present utility model:

[0009] When the driving wheel and the driven wheel are worn and need to be replaced, the staff first removes the wheel shaft of the rotary tiller and the second connecting plate, and then disassembles the crawler assembly. After disassembly, new driving wheels and driven wheels can be replaced. After replacement, the crawler assembly is wound around the driving wheel and the driven wheel, and then the entire device is installed on the rotary tiller through the second connecting plate and the fastening bolts. The installation and disassembly are convenient and fast, without the need for professional knowledge and tools, saving time and effort, reducing the difficulty and time cost of replacement, shortening the downtime, enabling the rotary tiller to quickly resume the working state, and reducing the production losses caused by long-term downtime. Description of the Drawings

[0010] Figure 1 is an isometric schematic diagram of the present utility model.

[0011] Figure 2 is a three-dimensional schematic of the present utility model Figure 1 .

[0012] Figure 3 is a three-dimensional schematic of the present utility model Figure 2 . [[ID=z29]]

[0013] Figure 4 is a structural schematic diagram of the crawler assembly of the present utility model. Detailed Embodiments

[0014] In order to make the purpose, technical solutions, and beneficial effects of the present utility model clearer, the following will combine the drawings to describe the preferred embodiments of the present utility model in detail for the convenience of those skilled in the art to understand.

[0015] The utility model discloses a crawler wheel for replacing a walking tractor rotary tiller. The crawler wheel for replacing a walking tractor rotary tiller mainly comprises an I-shaped bottom plate 1, a connecting block 2, a driven wheel 3, a support platform 4, a rotating shaft 5, a first connecting plate 6, a driving wheel 7, a crawler assembly 8, an adjusting block 9, a telescopic assembly 10, and a second connecting plate 11. The connecting block 2 connects the I-shaped bottom plate 1. The driven wheel 3 is rotatably installed on the I-shaped bottom plate 1. The support platform 4 is installed at the top of the I-shaped bottom plate 1. The rotating shaft 5 is rotatably installed on the support platform 4 through a bearing seat. The first connecting plate 6 is installed at the end of the rotating shaft 5. The driving wheel 7 is installed at the end of the rotating shaft 5 through the first connecting plate 6 and fastening bolts. Protrusions 71 are provided on the driving wheel 7 and the driven wheel 3. The crawler assembly 8 is wound around the protrusions 71. The adjusting block 9 is installed at the top of the connecting block 2. The telescopic assembly 10 is installed between the adjusting blocks 9. A second connecting plate 11 is installed on the wheel shaft 12 of the rotary tiller. The wheel shaft 12 is installed between the driving wheels 7 through the second connecting plate 11 and fastening bolts.

[0016] When the rotary tiller is operating, the driving motor of the rotary tiller is started. The driving motor drives the wheel shaft 12 to rotate, and then drives the driving wheel 7 and the driven wheel 3 to rotate. The protrusions 71 extend out of the rectangular grooves, and then drive the first connecting block 81, the second connecting block 82, the pin shaft 83, the limiting plate 84, and the connecting plate 85 to change their displacements, driving the rotary tiller to move forward for operation. When the driving wheel 7 and the driven wheel 3 are worn and need to be replaced, the staff first turns off the driving motor, removes the wheel shaft 12 and the second connecting plate 11 of the rotary tiller, and then disassembles the crawler assembly 8. The staff removes one of the pin shafts 83, and the entire crawler assembly 8 can be disassembled from the driving wheel 7 and the driven wheel 3. When the first connecting block 81, the second connecting block 82, the limiting plate 84, and the connecting plate 85 are worn, they can be replaced separately, reducing the production cost. After disassembly, a new driving wheel 7 and driven wheel 3 are replaced. After replacement, the staff connects the first connecting block 81 and the second connecting block 82 through the pin shaft 83, winds the crawler assembly 8 around the driving wheel 7 and the driven wheel 3, and then installs the entire device on the rotary tiller through the second connecting plate 11 and fastening bolts. The installation and disassembly are convenient and fast, without the need for professional knowledge and tools, saving time and effort, reducing the difficulty and time cost of replacement, shortening the downtime, enabling the rotary tiller to quickly resume the operating state, and reducing the production losses caused by long-term downtime.

[0017] As Figure 4As shown, the crawler assembly 8 includes a first connecting block 81, a second connecting block 82, a pin shaft 83, a limiting plate 84, and a connecting plate 85. The second connecting block 82 is installed at both ends of the first connecting block 81. The pin shaft 83 connects the first connecting block 81 and the second connecting block 82. The limiting plate 84 is installed on the second connecting block 82. A rectangular groove 841 is formed inside the limiting plate 84. The connecting plate 85 is installed on the first connecting block 81 and is located inside the rectangular groove 841. The convex block 71 extends outside the rectangular groove 841. When the driving wheel 7 and the driven wheel 3 are worn and need to be replaced, the staff removes one of the pin shafts 83, and the entire crawler assembly 8 can be removed from the driving wheel 7 and the driven wheel 3. When the first connecting block 81, the second connecting block 82, the limiting plate 84, and the connecting plate 85 are worn, they can be replaced separately, reducing the production cost.

[0018] As Figure 2 , Figure 3 shown, the telescopic assembly 10 includes a sleeve 101, a telescopic rod 102, and a locking bolt 103. The sleeve 101 and the telescopic rod 102 are installed on the adjusting block 9. The inside of the sleeve 101 is a cavity structure. The telescopic rod 102 is slidably installed inside the sleeve 101. The locking bolt 103 fixedly connects the sleeve 101 and the telescopic rod 102. Since the models of rotary tillers are different, the lengths of the wheel axles are also different. The staff can adjust the positions of the sleeve 101 and the telescopic rod 102 according to the length of the wheel axle. After adjustment, the sleeve 101 and the telescopic rod 102 are fixed by the locking bolt 103, expanding the use range of the device.

[0019] Working process:

[0020] When the rotary tiller is operating, the drive motor of the rotary tiller is turned on. The drive motor drives the axle 12 to rotate, which in turn drives the driving wheel 7 and the driven wheel 3 to rotate. The convex block 71 extends out of the rectangular groove, which further drives the first connecting block 81, the second connecting block 82, the pin shaft 83, the limiting plate 84, and the connecting plate 85 to have displacement changes, driving the rotary tiller to move forward for operation. When the driving wheel 7 and the driven wheel 3 are worn and need to be replaced, the staff first turns off the drive motor, removes the axle 12 and the second connecting plate 11 of the rotary tiller, and then disassembles the track assembly 8. The staff disassembles one of the pin shafts 83, and the entire track assembly 8 can be disassembled from the driving wheel 7 and the driven wheel 3. When the first connecting block 81, the second connecting block 82, the limiting plate 84, and the connecting plate 85 are worn, they can be replaced separately, reducing the production cost. After disassembly, just replace the new driving wheel 7 and the driven wheel 3. After replacement, the staff connects the first connecting block 81 and the second connecting block 82 through the pin shaft 83, winds the track assembly 8 around the driving wheel 7 and the driven wheel 3, and then installs the entire device onto the rotary tiller through the second connecting plate 11 and the fastening bolts. The installation and disassembly are convenient and fast, without the need for professional knowledge and tools, saving time and effort, reducing the difficulty and time cost of replacement, shortening the downtime, enabling the rotary tiller to quickly resume the operating state, and reducing the production losses caused by long-term downtime.

[0021] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A crawler wheel for replacing a walking tractor rotary tiller, characterized in that: The described crawler wheel for a walking rotary tiller replacement includes an I-shaped bottom plate (1), a connecting block (2), a driven wheel (3), a support platform (4), a rotating shaft (5), a first connecting plate (6), a driving wheel (7), a crawler assembly (8), an adjusting block (9), a telescopic assembly (10), and a second connecting plate (11). The connecting block (2) connects the I-shaped bottom plate (1). The driven wheel (3) is rotatably installed on the I-shaped bottom plate (1). The support platform (4) is installed at the top of the I-shaped bottom plate (1). The rotating shaft (5) is rotatably installed on the support platform (4) through a bearing seat. The first connecting plate (6) is installed at the end of the rotating shaft (5). The driving wheel (7) is installed at the end of the rotating shaft (5) through the first connecting plate (6) and fastening bolts. Protrusions (71) are provided on the driving wheel (7) and the driven wheel (3). The crawler assembly (8) is wound around the protrusions (71). The adjusting block (9) is installed at the top of the connecting block (2). The telescopic assembly (10) is installed between the adjusting blocks (9). A second connecting plate (11) is installed on the wheel axle (12) of the rotary tiller. The wheel axle (12) is installed between the driving wheels (7) through the second connecting plate (11) and fastening bolts.

2. The crawler wheel for replacing a walking tractor rotary tiller according to claim 1, characterized in that: The described crawler assembly (8) includes a first connecting block (81), a second connecting block (82), a pin shaft (83), a limiting plate (84), and a connecting plate (85). The second connecting block (82) is installed at both ends of the first connecting block (81). The pin shaft (83) connects the first connecting block (81) and the second connecting block (82). The limiting plate (84) is installed on the second connecting block (82). A rectangular groove (841) is provided inside the limiting plate (84). The connecting plate (85) is installed on the first connecting block (81) and is located inside the rectangular groove (841). The protrusion (71) extends outside the rectangular groove (841).

3. A crawler wheel for replacing a walking tractor rotary tiller as claimed in claim 1 or 2, characterized in that: The described telescopic assembly (10) includes a sleeve (101), a telescopic rod (102), and a locking bolt (103). The sleeve (101) and the telescopic rod (102) are installed on the adjusting block (9). The inside of the sleeve (101) has a cavity structure. The telescopic rod (102) is slidably installed inside the sleeve (101). The locking bolt (103) fixedly connects the sleeve (101) and the telescopic rod (102).

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