Rear machine tool of mini-tiller

Abstract

The utility model relates to the technical field of mini-tillers, in particular to a paddy wheel rear-mounted machine tool on a mini-tiller, which comprises a rotating shaft, at least two wheel carriers and blades, the wheel carriers are detachably connected onto the rotating shaft, connecting pieces are arranged at two ends of each blade, and the blades are detachably connected between the wheel carriers through the connecting pieces. And saw-toothed blade ends are arranged on the blades. The blades of the device can be independently detached from the device, only the blades need to be replaced when the blades are damaged, the whole device does not need to be replaced, and the lost cost can be reduced; and the saw-toothed blade ends on the blades can cut off weeds in contact with the mini-tiller during operation of the mini-tiller, so that the mini-tiller blade has an anti-winding function. The device is simple in structure, reasonable in design and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of micro-tillers, in particular to a rear-mounted implement of a paddy field wheel on a micro-tiller. Background Art

[0002] At present, the micro-tiller is one of the main agricultural implements for farmland tillage. Different rear-mounted implements can be installed on the micro-tiller to be applied to different tillage environments. During the planting period, paddy fields need to be soaked in irrigation water for a long time. When the soil in paddy fields is flooded and lacks oxygen, the decomposition of organic matter is relatively slow. Therefore, it is necessary to plow the paddy fields again before planting crops. After the micro-tiller is equipped with paddy field wheels, it can be used for plowing paddy fields, and its plowing effect is very good.

[0003] At present, the paddy field wheels disclosed in the prior art mainly consist of a rotating shaft, blades and a supporting connection part. The supporting connection part connects the rotating shaft and the blades together. The supporting connection part and the blades are usually connected together by welding. And usually, soil-breaking nails are also arranged on the blades. The soil-breaking nails and the blades form a tubular structure with a sharp angle, which can easily break the cohesive soil.

[0004] However, the above structure has the following defects. The supporting connection part and the blades are connected together by welding and cannot be disassembled. But during the tillage operation of the paddy field wheel, it is often the blades that are damaged. If the above paddy field wheel needs to be replaced due to blade damage, the entire paddy field wheel must be replaced, which will increase the cost loss. Secondly, there are some weeds with good toughness and long length in some paddy fields. And the above soil-breaking nails can only operate on the soil and cannot cut off such weeds. Therefore, the weeds are easily wound around the paddy field wheel, making the paddy field wheel unable to work normally. Summary of the Utility Model

[0005] Aiming at the above defects, the utility model discloses a rear-mounted implement of a micro-tiller, which mainly solves the technical problem that the blades of the paddy field wheel of the existing micro-tiller cannot be disassembled.

[0006] To achieve the above object, the utility model provides a rear-mounted implement of a micro-tiller, including a rotating shaft, a wheel frame and blades. The wheel frame is connected to the rotating shaft. The wheel frame includes a collar sleeved on the rotating shaft, a support rod arranged on the collar and a wheel ring connected to the support rod. Connecting pieces are arranged at both ends of the blades. The blades are detachably connected between the wheel frames through the connecting pieces.

[0007] Advantageous Effects: In this solution, the wheel frame is arranged on the rotating shaft, and connecting pieces are arranged on the blades. The connecting pieces can detachably connect the blades between the wheel frames. In this way, the individual disassembly and assembly of the blades can be realized by relying on the connecting pieces.

[0008] Preferably, there are at least two wheel carriers, and the wheel carriers can axially move and be positioned on the rotating shaft through collars.

[0009] Advantageous effects: The wheel carriers can adjust the spacing and be positioned on the rotating shaft. Therefore, the spacing between the wheel carriers can be adjusted, and by replacing the blades with appropriate sizes, the tillage width of the micro-tiller can be adjusted.

[0010] Advantageous effects: The collar, support rod, and wheel ring are integrally connected to form a wheel carrier. The collar can radially move along the rotating shaft, so that the position of the wheel carrier on the rotating shaft can be adjusted, and further the spacing between the wheel carriers can be adjusted. By replacing the blades with appropriate sizes, the tillage width of the micro-tiller can be adjusted.

[0011] Preferably, a plurality of threaded holes and bolts adapted to the threaded holes are provided on the rotating shaft. A connecting hole is also provided on the collar of the wheel carrier. The threaded hole is adapted to the connecting hole, and the bolt passes through the connecting hole and is connected to the threaded hole to realize the connection between the wheel carrier and the rotating shaft.

[0012] Advantageous effects: In this solution, a plurality of threaded holes and bolts adapted to the threaded holes are provided on the rotating shaft. The user can align the connecting hole on the collar of the wheel carrier with the corresponding threaded hole, and then use bolts for fixed connection, so as to realize the adjustment of the spacing of the wheel carrier on the rotating shaft.

[0013] Preferably, the number of the blades is not less than three.

[0014] Advantageous effects: In this solution, the number of blades provided on the wheel ring is at least three, which can ensure the tillage efficiency of the micro-tiller.

[0015] Preferably, the connecting member includes an arc-shaped pipe connected to the wheel ring, and a first connecting block and a second connecting block provided on the arc-shaped pipe. The arc-shaped pipe includes two half pipes. One side of each half pipe is hinged to the first connecting block, and the other side is provided with a second connecting block. When the two half pipes are buckled together, the two second connecting blocks are mutually attached, and threaded holes are also provided on each of the second connecting blocks.

[0016] Advantageous effects: In this solution, the arc-shaped pipe of the connecting member includes two half pipes. The two half pipes are hinged to the first connecting block, and the first connecting block is connected to the blade. The other sides of the two half pipes are both provided with second connecting blocks. When the two half pipes are buckled together, the two second connecting blocks can be mutually attached. In addition, threaded holes are provided on the second connecting blocks. After the arc-shaped pipe is attached to the wheel ring, the two second connecting blocks are threadedly connected to stably connect the connecting member to the wheel ring. The structure of the connecting member makes it very convenient to disassemble and install the blade on the wheel carrier.

[0017] Preferably, one side of the blade is a serrated edge.

[0018] Beneficial effects: The blade of this solution is provided with a serrated edge, which can help the rotary tiller cut the weeds in the paddy field when operating in the paddy field, preventing them from being entangled on the rotary tiller. Description of the drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic structural diagram of the rear implement of the rotary tiller of the present invention;

[0021] Figure 2 It is a right view of the rear implement of the rotary tiller of the present invention;

[0022] Figure 3 It is a schematic structural diagram of the wheel frame of the rear implement of the rotary tiller of the present invention;

[0023] Figure 4 It is a schematic structural diagram of the connecting piece of the rear implement of the rotary tiller of the present invention.

[0024] Main reference numeral description: 1, rotating shaft; 11, threaded hole; 2, wheel frame; 21, collar; 22, support rod; 23, wheel ring; 24, connecting hole; 3, blade; 31, connecting piece; 32, first connecting block; 33, arc tube; 34, second connecting block. Detailed implementation manners

[0025] The following will describe in detail the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the embodiments of the present invention, and should not be construed as a limitation of the present invention.

[0026] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present invention 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 should not be construed as a limitation of the present invention.

[0027] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the embodiments of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0028] As an embodiment of the present utility model:

[0029] The rear-mounted implement of the micro-tiller in this embodiment mainly includes three parts: a rotating shaft 1, a wheel frame 2, and a blade 3.

[0030] Reference Figure 1 - Figure 2 , in this embodiment, the rotating shaft 1 is a hexagonal pipe, and a plurality of threaded holes 11 and bolts adapted to the threaded holes 11 are provided on the rotating shaft 1. The wheel frame 2 is sleeved on the rotating shaft 1. In this embodiment, there are three wheel frames 2 in total, and the three wheel frames 2 are spaced apart on the rotating shaft 1, and the blade 3 is arranged between the wheel frames 2.

[0031] Reference Figure 3 , the wheel frame 2 includes a collar 21, a support rod 22, and a wheel ring 23. The collar 21 is fixedly connected to the support rod 22, and the wheel ring 23 is connected to the support rod 22. The three together form the wheel frame 2. The center of the collar 21 is hollowed out, and the hollowed-out part is in the shape of a regular hexagon, which fits the longitudinal section of the rotating shaft 1. The function of the collar 21 is to connect with the rotating shaft 1; one end of the support rod 22 is connected to the outside of the collar 21, and the other end is connected to the wheel ring 23. There are three support rods 22, which can ensure the overall stability of the wheel frame 2; and the collar 21 and the wheel ring 23 are in the same plane and their centers are collinear. The wheel ring 23 serves as a carrier for connecting the blade 3. In addition, a connection hole 24 is provided on the collar 21. After the collar 21 is sleeved on the rotating shaft 1, it can move along the axial direction. After the connection hole 24 is aligned with the threaded hole 11, the bolt on the rotating shaft 1 can be connected to the threaded hole 11 through the connection hole 24, so that the wheel frame 2 can be fixed on the rotating shaft 1; this threaded connection method enables the wheel frame 2 to be disassembled and assembled on the rotating shaft 1, so the distances between multiple wheel frames 2 can be adjusted on the rotating shaft 1.

[0032] Reference Figure 1, the blade 3 is arranged on the wheel ring 23 of the wheel frame 2. There are 3 blades 3 arranged at equal intervals in the circumferential direction between every two wheel frames 2, which can ensure the tilling efficiency of the micro-tiller. Secondly, the blade 3 is connected to the wheel frame 2 through a connecting piece 31. Connecting pieces 31 are arranged at both ends of the blade 3 and are respectively connected to two wheel frames 2. When the rotating shaft 1 rotates, it can drive the blade 3 to rotate. When the blade 3 contacts the ground, an included angle can be formed, so that the blade 3 is convenient to cut into the soil for tilling; in addition, one side of the blade 3 in contact with the ground is set as a serrated edge, and this edge can cut off the weeds in the paddy field to prevent the weeds from entangling the micro-tiller.

[0033] Reference Figure 1 and Figure 4 , the connecting piece 31 includes three parts: an arc-shaped pipe 33, a first connecting block 32 and a second connecting block 34. The arc-shaped pipe 33 includes two half-pipes. One side of each half-pipe is hinged to the first connecting block. The first connecting block 32 is then connected to the blade 3, and the arc-shaped pipe 33 is connected to the wheel ring 23 on the wheel frame 2, so as to realize the fixed connection between the blade 3 and the connecting piece 31. The other sides of the two half-pipes are both provided with second connecting blocks 34. When the two half-pipes are buckled together, the two second connecting blocks 34 can fit together. The two half-pipes of the arc-shaped pipe 33 can be opened around the first connecting block 32, so that the arc-shaped pipe 33 can be installed on the wheel ring 23. Because the arc-shaped pipe 33 is relatively long, after being installed on the wheel ring 23, the pipe body is in close contact with the wheel ring 23, and the generated frictional force can prevent the connecting piece 31 from sliding on the wheel ring. In addition, the second connecting block 34 is provided with a threaded hole 11, and the two second connecting blocks can be fixed by means of threaded connection. After the connecting piece 31 is installed on the wheel ring 23, the two second connecting blocks 34 are fixed with a suitable bolt, so as to realize the detachable connection between the connecting piece 31 and the wheel ring 23, that is, the detachable connection between the blade 3 and the wheel frame 2, and the blade 3 can be detached from the wheel frame 2. If the blade 3 of the device is damaged, at this time, only the blade 3 needs to be replaced, and there is no need to replace the whole device, which can greatly save costs.

[0034] In addition, there are many kinds of sizes of the blade 3. Therefore, the distance between the wheel frames 2 on the rotating shaft 1 can be adjusted. After adjustment, a blade 3 of a suitable size is selected and then installed on the wheel ring 23 of the wheel frame 2, which can realize the adjustment of the tilling width of the micro-tiller.

[0035] In summary, a rear implement of a micro-tiller disclosed in this application, the connecting piece on the blade can be detachably connected to the wheel frame, so that the blade can be detached from the device alone. When the blade is damaged, only the blade needs to be replaced, and there is no need to replace the whole device, which can save costs; and the serrated edge on the blade can cut off the weeds in contact with the micro-tiller during the operation of the micro-tiller, having an anti-entanglement function. This device has a simple structure, reasonable design and convenient use.

[0036] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A rear implement of a micro-tillage machine, comprising a rotating shaft (1), a wheel frame (2) and a blade (3), wherein the wheel frame (2) is connected to the rotating shaft (1), the wheel frame (2) comprises a collar (21) sleeved on the rotating shaft (1), a support rod (22) arranged on the collar (21) and a wheel ring (23) connected to the support rod (22), characterized in that: Connecting pieces (31) are provided at both ends of the blade (3), and the blade (3) is detachably connected between the wheel frames (2) via the connecting pieces (31).

2. The rear implement of the micro-tillage machine according to claim 1, characterized in that: The number of the wheel carriers (2) is at least two, and the wheel carriers (2) can be axially moved and positioned on the rotating shaft (1) via a collar (21).

3. The rear implement of the micro-tillage machine according to claim 1, characterized in that: The rotating shaft (1) is provided with a plurality of threaded holes (11) and bolts adapted to the threaded holes (11); the collar (21) of the wheel frame (2) is also provided with a connecting hole (24); the threaded hole (11) is adapted to the connecting hole (24); the bolt passes through the connecting hole (24) and is connected to the threaded hole (11) to achieve the connection between the wheel frame (2) and the rotating shaft (1).

4. The rear implement of the micro-tillage machine according to claim 2, characterized in that: The number of the blades (3) is no less than three.

5. The rear implement of the micro-tillage machine according to claim 1, characterized in that: The connecting member (31) comprises an arc-shaped tube (33) connected to the wheel ring (23) and a first connecting block (32) and a second connecting block (34) arranged on the arc-shaped tube. The arc-shaped tube comprises two half-tubes. One side of each half-tube is hinged to the first connecting block (32), and the other side is provided with a second connecting block (34). When the two half-tubes are buckled together, the two second connecting blocks (34) fit each other. A threaded hole is also provided on each of the second connecting blocks (34).

6. The rear implement of the micro-tillage machine according to claim 1, characterized in that: One side of the blade is a serrated edge portion.

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