Cutter and weeding machine

Abstract

The utility model relates to a cutter and weeding machine wherein the cutter comprises a rotating shaft, a cutter and a cutter mounting structure for mounting the cutter on the rotating shaft, the cutter mounting structure comprises an upper connecting block fixedly connected to the lower end of the rotating shaft and a lower connecting block fixedly connected to the cutter, the upper side of the lower connecting block abuts against the lower side of the upper connecting block, the lower connecting block is detachably connected with a fastener, and the fastener is detachably connected to the upper connecting block. The multi-stage adjustable weeding device can realize multi-stage adjustment of the direction of the cutter, is convenient to disassemble and assemble, and can realize a better weeding effect.

Description

Technical Field

[0001] The utility model relates to the technical field of weeding equipment, in particular to a cutter and a weeder. Background Art

[0002] In the process of weeding with a weeder, the hydraulic module drives the cutter to rotate to achieve weeding. When weeding between crops (such as grapes), the cutter rotates a certain amplitude to form a weeding operation in a certain fan-shaped area, that is, the weeder drives the reciprocating cutter to weed. When the weeder moves forward, when it encounters a crop plant, the cutter rotates in the opposite direction and retracts. After passing the plant, the cutter rotates to weed.

[0003] During the weeding process, especially when encountering situations such as winding changes in the weeding area between plants, changes in soil hardness, changes in the flatness of the ground in the weeding area, etc., since the weeder's driving route is a route of a certain width reserved between rows of crops, the forward route is difficult to change, resulting in the tool with a certain rotating amplitude being difficult to complete the weeding work effectively and quickly, resulting in low efficiency and poor weeding effect. Utility Model Content

[0004] The utility model provides a cutter and a weeder, which can realize multi-level adjustment of the direction of the cutter, are convenient to assemble and disassemble, and can achieve better weeding effect.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] On the one hand, the utility model provides a cutter, comprising a rotating shaft, a cutter and a cutter mounting structure for mounting the cutter on the rotating shaft, the cutter mounting structure comprising an upper connecting block fixedly connected to the lower end of the rotating shaft and a lower connecting block fixedly connected to the cutter, the upper side of the lower connecting block abuts against the lower side of the upper connecting block, the lower connecting block is detachably connected to a fastener, and the fastener is detachably connected to the upper connecting block.

[0007] The beneficial effect of the utility model is that when in use, the initial position of the tool can be adjusted by removing the fastener, rotating the tool, and rotating the lower connecting block relative to the upper connecting block by an angle, and then installing the fastener. When the amplitude of the tool rotation driven by the rotating shaft remains unchanged, the end position of the tool changes to achieve multi-level adjustment of the tool direction, so that the tool can change the initial rotation position according to different working conditions such as changes in ground flatness and changes in soil hardness, thereby achieving a better weeding effect; the fastener is used to facilitate quick disassembly and assembly.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, a plurality of protrusions arranged at intervals along a circumference are fixed to the lower side of the upper connecting block, and a plurality of grooves adapted to the plurality of protrusions one by one are opened on the upper side of the lower connecting block; or a plurality of protrusions arranged at intervals along a circumference are fixed to the upper side of the lower connecting block, and a plurality of grooves adapted to the plurality of protrusions one by one are opened on the lower side of the upper connecting block.

[0010] The beneficial effect of adopting the above further solution is that the protrusion and the groove are mutually engaged, which is convenient for rotating the direction of the tool, can realize multi-level adjustment of the tool direction, and the connection is firm and reliable, which can improve the structural strength.

[0011] Furthermore, the contact surface between the protrusion and the groove is a smooth arc surface.

[0012] The beneficial effect of adopting the above further solution is to ensure that the protrusion can be smoothly docked and enter the groove.

[0013] Furthermore, the central axis of the fastener coincides with the central axes of the plurality of protrusions.

[0014] The beneficial effect of adopting the above further solution is to ensure that after the fastener is removed and the tool is rotated, the upper connecting block and the lower connecting block can still be smoothly connected through the fastener.

[0015] Furthermore, the fastener is a bolt, the rod of which vertically passes through the tool, the lower connecting block and the upper connecting block, and is threadedly connected to the rotating shaft.

[0016] The beneficial effect of adopting the above further solution is that the tool can be disassembled and rotated in the direction by unscrewing the bolt, and the tool starting angle can be changed conveniently and quickly, and the use is simple.

[0017] Furthermore, a cutting edge is provided on the front side of the tool, and the tool is tilted as a whole, forming an angle of 5°-30° with the horizontal direction.

[0018] The beneficial effect of adopting the above further scheme is: weeding is carried out through the blade, and at the same time, the blade end of the tool is tilted downward, which makes it easier for the tool to enter the soil for weeding, reduces the impact of the soil on the tool, and achieves a better weeding effect.

[0019] Furthermore, a mounting hole is formed through the rear end of the tool, and the lower connecting block is fixedly connected to the tool and is located at the upper opening of the mounting hole.

[0020] The beneficial effect of adopting the above further solution is that by providing the mounting hole, a space for disassembly and assembly of the fastener is formed.

[0021] Furthermore, the mounting hole is opened at one end of the tool in the length direction.

[0022] The beneficial effect of adopting the above further solution is that the mounting hole is located at one end of the tool in the length direction to ensure the usable length of the entire tool.

[0023] Furthermore, the rear side of the other end portion in the length direction of the tool is tilted upward to form a guide portion.

[0024] The beneficial effect of adopting the above further scheme is that during the cutting process of the tool, the raised guide part can reduce further resistance; at the same time, as the tool moves forward, the guide part guides the soil on the tool to both sides, reducing the forward resistance and making it easier to comb out the soil clods.

[0025] On the other hand, the utility model provides a weeder, comprising the aforementioned cutter and a weeder body.

[0026] The beneficial effect of adopting the above further solution is that during the weeding process, the weeder body drives the rotating shaft to rotate back and forth, driving the cutter to perform weeding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 It is a partial cross-sectional view of the utility model;

[0029] Figure 3 It is a top view of the utility model, and the arrow in the figure indicates the forward direction of the lawn mower body;

[0030] Figure 4 It is a structural diagram of the lower connecting block of the utility model.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 1. Rotating shaft;

[0033] 2. tool; 21. blade; 22. mounting hole; 23. guide portion;

[0034] 3. Upper connecting block;

[0035] 4. Lower connecting block;

[0036] 5. Fasteners;

[0037] 6. Bump;

[0038] 7. Lawn mower body. DETAILED DESCRIPTION

[0039] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0040] On the one hand, the utility model provides a cutter, which is described in detail below.

[0041] Example 1

[0042] like Figure 1 and Figure 2 A cutter comprises a rotating shaft 1, a tool 2 and a tool mounting structure for mounting the tool 2 on the rotating shaft 1, wherein the tool mounting structure comprises an upper connecting block 3 fixedly connected to the lower end of the rotating shaft 1 and a lower connecting block 4 fixedly connected to the tool 2, wherein the upper side of the lower connecting block 4 abuts against the lower side of the upper connecting block 3, the lower connecting block 4 is detachably connected with a fastener 5, and the fastener 5 is detachably connected to the upper connecting block 3.

[0043] The beneficial effect of this embodiment is that when in use, the initial position of the tool 2 can be adjusted by removing the fastener 5, rotating the tool 2, and rotating the lower connecting block 4 relative to the upper connecting block 3 by an angle, and then installing the fastener 5. When the amplitude of the rotation of the tool 2 driven by the rotating shaft 1 remains unchanged, the end position of the tool 2 changes to achieve multi-level adjustment of the direction of the tool 2, so that the tool 2 can change the initial rotation position according to different working conditions such as changes in ground flatness and changes in soil hardness, thereby achieving a better weeding effect; the fastener 5 facilitates quick disassembly and assembly.

[0044] On the basis of the above embodiment, the upper connecting block 3 and the lower connecting block 4 are cylindrical as a whole, and the upper connecting block 3 is welded to the rotating shaft 1, and the lower connecting block 4 is welded to the tool 2.

[0045] It should be noted that, in the above embodiments, the forward direction of the lawn mower is taken as the front, and correspondingly, the backward direction of the lawn mower is taken as the rear.

[0046] Example 2

[0047] like Figure 2 and Figure 4 On the basis of Example 1, a plurality of protrusions 6 arranged at intervals along the circumference are fixed to the lower side of the upper connecting block 3, and a plurality of grooves adapted to the plurality of protrusions 6 are opened on the upper side of the lower connecting block 4; or a plurality of protrusions 6 arranged at intervals along the circumference are fixed to the upper side of the lower connecting block 4, and a plurality of grooves adapted to the plurality of protrusions 6 are opened on the lower side of the upper connecting block 3.

[0048] The beneficial effect of adopting the preferred solution in the above embodiment is that the protrusion 6 and the groove are mutually engaged, which is convenient for rotating the direction of the tool 2, can realize multi-level adjustment of the direction of the tool 2, and the connection is firm and reliable, which can improve the structural strength.

[0049] As one of the specific solutions of the above embodiment, the protrusion 6 can be a fan-shaped structure radiating outward from the central axis of the upper connecting block 3 or the lower connecting block 4, and correspondingly, the groove is a fan-shaped groove.

[0050] As a second specific solution of the above embodiment, the plurality of protrusions 6 may be polygonal blocks spaced apart along the circumference, and the recesses may be matching polygonal grooves.

[0051] By means of the above-mentioned docking method, when the protrusion 6 docks and enters the groove, it can be ensured that the central axes of the upper connecting block 3 and the lower connecting block 4 coincide with each other.

[0052] Example 3

[0053] like Figure 4 On the basis of embodiments 1-3, the contact surface between the protrusion 6 and the groove is a smooth arc surface.

[0054] The beneficial effect of adopting the preferred solution in the above embodiment is to ensure that the protrusion 6 can be smoothly docked and enter the groove.

[0055] In the present embodiment 3, the contact surface is a smooth arc surface in that the edges of the protrusion 6 itself and the edges connected to the lower connecting block 4 are chamfered to form an arc surface to facilitate smooth alignment, and the protrusion 6 will not be stuck in the groove.

[0056] Example 4

[0057] like Figure 2 and Figure 4 On the basis of embodiments 1 and 2, the central axis of the fastener 5 coincides with the central axis of the plurality of protrusions 6 .

[0058] The beneficial effect of adopting the preferred solution in the above embodiment is to ensure that after the fastener 5 is removed and the tool 2 is rotated, the upper connecting block 3 and the lower connecting block 4 can still be smoothly connected through the fastener 5.

[0059] Example 5

[0060] like Figure 2 On the basis of embodiments 1-4, the fastener 5 is a bolt, the rod of which vertically passes through the tool 2, the lower connecting block 4 and the upper connecting block 3, and is threadedly connected to the rotating shaft 1.

[0061] The beneficial effect of adopting the preferred solution in the above embodiment is that the tool 2 can be disassembled and rotated by unscrewing the bolt, and the tool starting angle can be changed conveniently and quickly, and it is easy to use.

[0062] As a specific solution of the above embodiment, through holes are formed on the cutter 2, the lower connecting block 4 and the upper connecting block 3, and a threaded hole is formed on the rotating shaft 1 for the rod of the bolt to penetrate and realize the threaded connection with the rotating shaft 1.

[0063] As a parallel solution of the above embodiment, the rod portion of the bolt may also be threadedly connected to the upper connecting block 3 , or threadedly connected to the rotating shaft 1 and the upper connecting block 3 at the same time.

[0064] As a parallel solution of the above-mentioned embodiment, the vertical projection of the rotating shaft 1 is located within the vertical projection plane of the upper connecting block 3, and the fastener 5 is configured as a plurality of bolts, which are evenly distributed circumferentially on the upper connecting block 3, and the rod of the bolt passes downward through the upper connecting block 3 and is threadedly connected to the lower connecting block 4.

[0065] Example 6

[0066] like Figure 2 and Figure 3 On the basis of Embodiments 1-5, a cutting edge 21 is provided on the front side of the tool 2, and the tool 2 is tilted as a whole, forming an angle of 5°-30° with the horizontal direction. Specifically, the end of the tool 2 provided with the cutting edge 21 is the lower end.

[0067] The beneficial effect of adopting the preferred solution in the above embodiment is that weeding is performed through the blade 21, and at the same time, the blade end of the tool 2 is tilted downward, which makes it easier for the tool 2 to enter the soil to weed, reduces the impact of the soil on the tool 2, and achieves a better weeding effect.

[0068] As a specific solution of the above embodiment, the inclination angle of the tool 2 can be 5°, 10°, 15°, 20°, 25°, 30°, etc.

[0069] Example 7

[0070] like Figure 2 On the basis of embodiments 1-6, a mounting hole 22 is formed through the rear end of the tool 2, and the lower connecting block 4 is fixedly connected to the tool 2 and is located at the upper opening of the mounting hole 22.

[0071] The beneficial effect of adopting the preferred solution in the above embodiment is that, by providing the mounting hole 22 , a space for disassembling and assembling the fastener 5 is formed.

[0072] Specifically, as in the above-mentioned Embodiment 4 and Embodiment 5, the rod of the bolt passes upward from the mounting hole 22 into the lower connecting block 4 and realizes a threaded connection with the upper connecting block 3 and / or the rotating shaft 1, while the head of the bolt is located in the mounting hole 22.

[0073] Example 8

[0074] like Figure 2 and Figure 3 On the basis of Embodiment 1-7, the mounting hole 22 is opened at one end of the tool 2 in the length direction.

[0075] The beneficial effect of adopting the preferred solution in the above embodiment is that the mounting hole 22 is located at one end of the tool in the length direction to ensure the usable length of the entire tool 2.

[0076] It should be noted that, if the description is based on the length direction of the tool 2, the front end and the rear end of the tool 2 are the two ends of the width direction of the tool 2 respectively.

[0077] Example 9

[0078] like Figure 2 and Figure 3 On the basis of Embodiment 1-8, the rear side of the other end of the tool 2 in the length direction is upwardly tilted to form a guide portion 23.

[0079] The beneficial effect of adopting the preferred scheme in the above embodiment is that, during the cutting process of the tool 2, the raised guide portion 23 can reduce further resistance; at the same time, as the tool 2 moves forward, the guide portion 23 guides the soil on the tool 2 to both sides, reducing the forward resistance and facilitating the combing of soil clods.

[0080] On the basis of the above embodiment, the guide portion 23 forms an obtuse angle with the horizontal direction in which the tool 2 moves forward.

[0081] On the other hand, the utility model provides a weeder, which is described in detail below.

[0082] Example 10

[0083] like Figure 1 and Figure 2 , a weeder, comprising a cutter as described in Examples 1-9, and also comprising a weeder body 7.

[0084] The beneficial effect of adopting the preferred solution in the above embodiment is that during the weeding process, the weeder body 7 drives the rotating shaft 1 to rotate back and forth, driving the cutter 2 to perform the weeding operation.

[0085] Specifically, the rotating shaft 1 is mounted on the weeder body 7 .

[0086] As a related technology, generally, the lawn mower described in the above embodiment also includes a frame and a walking module, a hydraulic module, a transmission system and a control system all mounted on the frame. The walking module is started by the control system to move the lawn mower, and the hydraulic module and the transmission system are controlled by the control system to rotate the transmission control shaft 1 to achieve the weeding operation of the cutter 2. Specifically, the walking module, the hydraulic module, the transmission system and the control system are existing technologies and will not be elaborated on in detail here.

[0087] During the weeding process, the front end of the tool 2 is tilted downward, forming an angle of 5°-30° with the horizontal direction, which makes it easier for the tool 2 to enter the soil for weeding, reduces the impact of the soil on the tool, and achieves a better weeding effect; when it is necessary to adjust the initial angle of the tool 2, close the weeder body 7, unscrew the fastener 5, so that the protrusion 6 is out of the groove, rotate the tool 2 and rotate it to a preset angle, and then fix the tool 2 again through the fastener 5 to achieve multi-level adjustment of the position and direction of the tool 2 connection, thereby achieving a better weeding effect.

[0088] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0089] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0090] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0091] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0092] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0093] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A cutter, comprising a rotating shaft (1), a cutter (2) and a cutter mounting structure for mounting the cutter (2) on the rotating shaft (1), characterized in that: The tool mounting structure comprises an upper connecting block (3) fixedly connected to the lower end of the rotating shaft (1) and a lower connecting block (4) fixedly connected to the tool (2); the upper side of the lower connecting block (4) abuts against the lower side of the upper connecting block (3); the lower connecting block (4) is detachably connected to a fastener (5), and the fastener (5) is detachably connected to the upper connecting block (3).

2. A cutter according to claim 1, characterized in that: A plurality of protrusions (6) arranged at intervals along a circumference are fixed on the lower side of the upper connecting block (3), and a plurality of grooves adapted to the plurality of protrusions (6) are provided on the upper side of the lower connecting block (4); or a plurality of protrusions (6) arranged at intervals along a circumference are fixed on the upper side of the lower connecting block (4), and a plurality of grooves adapted to the plurality of protrusions (6) are provided on the lower side of the upper connecting block (3).

3. A cutter according to claim 2, characterized in that: The contact surface between the protrusion (6) and the groove is a smooth arc surface.

4. A cutter according to claim 2, characterized in that: The central axis of the fastener (5) coincides with the central axes of the plurality of protrusions (6).

5. A cutter according to any one of claims 1 to 4, characterized in that: The fastener (5) is a bolt, the stem of which passes vertically upward through the cutter (2), the lower connecting block (4) and the upper connecting block (3), and is threadedly connected to the rotating shaft (1).

6. A cutter according to any one of claims 1 to 4, characterized in that: The front side of the knife (2) is provided with a knife edge (21), and the knife (2) is tilted as a whole, forming an angle of 5°-30° with the horizontal direction.

7. A cutter according to claim 6, characterized in that: The cutter (2) is provided with a mounting hole (22) extending therethrough, and the lower connecting block (4) is fixedly connected to the cutter (2) and is located at the upper opening of the mounting hole (22).

8. A cutter according to claim 7, characterized in that: The mounting hole (22) is opened at one end of the tool (2) in the length direction.

9. A cutter according to claim 8, characterized in that: The rear side of the other end portion of the tool (2) in the length direction is tilted upward to form a guide portion (23).

10. A weeder, characterized in that: It comprises a cutter as claimed in any one of claims 1 to 9, and also comprises a weeder body (7).

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