Grass winding prevention mechanism for rotary cultivator cutter

Abstract

The grass winding prevention mechanism comprises a U-shaped plate, a rotating rod, a circular tool apron, a blade, a baffle, a first grass winding prevention structure and a second grass winding prevention structure. The inner side of the U-shaped plate is rotationally connected with a rotating rod, the circular tool apron is fixedly connected to the outer wall of the rotating rod, the blades are symmetrically arranged on the circular tool apron, the baffle is fixedly connected to one side of the circular tool apron, the first grass winding prevention structures are arranged on the two sides of the circular tool apron, and the second grass winding prevention structures are arranged on the opposite sides of the blades. Compared with the prior art, the weed cutter has the advantages that the cutter sleeve II is kept still relative to the cutter sleeve I, so that the radial cutting blade point I and the radial cutting blade point II oppositely move in opposite directions when the rotating rod rotates, shearing force is generated, weeds on the rotating rod are cut, and meanwhile, when the blade horizontally rotates, the weeds on the rotating rod can be cut. The cutting tool can cut weeds in the horizontal direction, the weeds can be quickly cleaned, and the effect of preventing the weeds from winding is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of tool entanglement prevention, in particular to a mechanism for preventing grass entanglement of a rotary tiller tool. Background Art

[0002] Rotary tillers are widely used because they have a strong ability to break up the soil, which in turn creates a smooth surface after tilling. They can also remove weed roots beneath the surface, making sowing easier and providing excellent adjustment for seeding. The horizontal-axis cutters of rotary tillers offer a strong ability to break up the soil and are often used to cultivate shrublands, swamps, and grasslands. Heavy-duty rotary tillers are generally traction-type. Tilling depth is controlled and adjusted by a puller or depth-limiting wheel. The puller, located behind the cutter roller, combines soil breaking and leveling.

[0003] Patent document CN220776413U discloses a rotary tillage tool for a micro-tillage machine, comprising a crossbeam, a U-shaped rod fixedly connected to one side of the lower surface of the crossbeam, a slider movably sleeved on the rod wall of the U-shaped rod, a cylinder fixedly connected to the slider, a connecting rod fixedly connected to the other symmetrical side of the crossbeam, the output end of the cylinder rotatably connected to an axle pin, the top lower end of the connecting rod rotatably connected to another axle pin, two axle pins rotatably connected to a first U-shaped plate, and a second U-shaped plate fixedly connected to the lower surface of the two first U-shaped plates. The utility model makes it easier to access incompletely cultivated land in ridges and potholes, thereby improving land utilization, but the existing technology still has defects:

[0004] During the use of the rotary tiller of the prior art, the rotary tiller drives the blades to rotate to cultivate the land. Since there are various weeds and crop roots in the land, especially in areas with more weeds, as the rotary rod rotates, some weeds and crop roots are entangled more and more tightly on the rotary rod as the rotary rod rotates. There are many blades on the rotary rod, and the blades will come into contact with the weeds, so that the weeds will be entangled on the blades, causing the blades to be completely entangled, causing the blades to be locked and the rotary tiller to fail to work normally. The weeds and crop roots will become tighter and tighter after being entangled, making it difficult to remove them. After the blades and the rotary rod are entangled by the weeds, the tillage efficiency will be low, the tillage depth will be shallower, and the prime mover will be overloaded. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the above-mentioned defects and provide a mechanism for preventing grass entanglement of the cutters of a rotary tiller.

[0006] In order to solve the above technical problems, the technical solution provided by the present invention is: a mechanism for preventing grass entanglement of rotary tiller cutters, comprising:

[0007] A U-shaped plate, wherein the inner side of the U-shaped plate is rotatably connected to a rotating rod;

[0008] A circular knife seat, wherein the circular knife seat is fixedly connected to the outer wall of the rotating rod, and the circular knife seat is provided in multiple numbers and is distributed at equal intervals;

[0009] Blades are symmetrically arranged on a circular blade seat;

[0010] A baffle, the baffle being fixedly connected to one side of the circular knife seat;

[0011] The first anti-grass entanglement structure is provided on both sides of the circular blade holder, and the first anti-grass entanglement structure includes a tool sleeve fixedly connected to the side of the circular blade holder away from the baffle and the side of the baffle away from the circular blade holder, the side of the tool sleeve away from the circular blade holder is provided with a radial cutting edge, and a plurality of tool sleeves distributed at equal intervals are rotatably connected to the outer wall of the rotating rod, the tool sleeve is provided between two adjacent circular blade holders, and radial cutting edges are provided at both ends of the tool sleeve, and a set of the tool sleeve is provided outside the tool sleeve;

[0012] The second anti-grass entanglement structure is arranged on the opposite side of the blade. The second anti-grass entanglement structure includes a mounting tube fixedly connected to the opposite side of the blade. The mounting tube is arranged at one end of the blade close to the circular blade seat. A mounting groove is provided inside the mounting tube. A cutting tool is inserted into the mounting groove. A through hole is provided on the cutting tool. A fixing screw is threadedly connected to the front side of the mounting tube, and the fixing screw is used in conjunction with the through hole.

[0013] Furthermore, the second tool sleeve is inscribed in the first tool sleeve.

[0014] Furthermore, both sides of the inner side of the U-shaped plate are fixedly connected with a tool sleeve three, and the tool sleeve three is sleeved on the outside of the rotating rod. The opposite side of the tool sleeve three is provided with a radial cutting blade two.

[0015] Furthermore, a vertical rod is fixedly connected to the top of the second tool sleeve, and a threaded groove is provided on the top of the vertical rod.

[0016] Furthermore, a positioning screw is threadedly connected to the top of the U-shaped plate, and there are multiple positioning screws distributed at equal intervals. The bottom end of the positioning screw is threadedly connected to the thread groove.

[0017] The advantages of the present invention over the prior art are as follows: in the present invention, by providing the anti-grass entanglement structure 1 and the anti-grass entanglement structure 2, when plowing the land, the rotating rod drives the circular knife seat to rotate, and at the same time drives the tool sleeve 1 and the radial cutting blade 1 to rotate, while the tool sleeve 2 and the radial cutting blade 2 remain stationary relative to the tool sleeve 1 under the action of the vertical rod. At this time, the radial cutting blade 1 and the radial cutting blade 2 move in opposite directions relative to each other, generating a shear force, cutting the weeds entering the connection between the tool sleeve 1, the tool sleeve 2 and the rotating rod, and cutting the weeds, which can prevent the weeds from being further entangled on the rotating rod, thereby ensuring that the rotary tiller tool can rotate normally. By arranging the cutting tool on the blade, when weeds are entangled on the blade, the blade rotates horizontally, and the cutting tool can cut the weeds in the horizontal direction, thereby cutting off the weeds, and quickly clearing the weeds, so that the micro-tillage machine can work quickly, ensuring the working efficiency of the micro-tillage machine, and enhancing the effect of preventing weed entanglement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This utility model is a three-dimensional anti-grass entanglement mechanism for rotary tiller cutters. Figure 1 .

[0019] Figure 2 This utility model is a three-dimensional anti-grass entanglement mechanism for rotary tiller cutters. Figure 2 .

[0020] Figure 3 The utility model is a front view of a mechanism for preventing grass entanglement of a rotary tiller cutter.

[0021] Figure 4 The utility model is a cross-sectional view of a mechanism for preventing grass entanglement of a rotary tiller cutter.

[0022] Figure 5 This utility model is a rotary tiller tool anti-grass entanglement mechanism Figure 2 Enlarged structural diagram at point A in the middle.

[0023] Markings in the figure: 1. U-shaped plate; 2. Rotating rod; 3. Circular knife seat; 4. Blade; 5. Baffle; 6. Anti-grass entanglement structure 1; 61. Tool sleeve 1; 62. Radial cutting blade 1; 63. Tool sleeve 2; 64. Radial cutting blade 2; 65. Vertical rod; 66. Tool sleeve 3; 7. Anti-grass entanglement structure 2; 71. Mounting cylinder; 72. Mounting slot; 73. Cutting tool; 74. Fixing screw; 8. Positioning screw. DETAILED DESCRIPTION

[0024] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present disclosure. Rather, they are merely examples of devices consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0025] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] like Figures 1 to 5 As shown, this embodiment proposes a grass-entanglement prevention mechanism for rotary tiller tools, including a U-shaped plate 1, the inner side of the U-shaped plate 1 is rotatably connected to a rotating rod 2, and a circular knife seat 3 is fixedly connected to the outer wall of the rotating rod 2. There are multiple circular knife seats 3 and they are evenly spaced. Blades 4 are symmetrically arranged on the circular knife seat 3, and a baffle 5 is fixedly connected to one side of the circular knife seat 3, wherein a limiting structure is provided on the baffle 5. The structure and use principle of the limiting structure have been disclosed in a rotary tiller tool for a micro-tiller with Chinese patent publication number CN220776413U, and will not be repeated in this solution.

[0027] The circular knife seat 3 is provided with an anti-grass entanglement structure 6 on both sides. The anti-grass entanglement structure 6 includes a tool sleeve 61 fixedly connected to the side of the circular knife seat 3 away from the baffle 5 and the side of the baffle 5 away from the circular knife seat 3. The tool sleeve 61 is provided with a radial cutting blade 62 on the side away from the circular knife seat 3. A plurality of tool sleeves 63 with equal spacing are rotatably connected to the outer wall of the rotating rod 2. The tool sleeve 63 is provided between two adjacent circular knife seats 3. Both ends of the tool sleeve 63 are provided with radial cutting blades 64. The tool sleeve 61 is sleeved on the outside of the tool sleeve 63. Sleeve 2 63 is inscribed in tool sleeve 1 61, and tool sleeve 3 66 is fixedly connected to both sides of the inner side of the U-shaped plate 1. Tool sleeve 3 66 is sleeved on the outside of the rotating rod 2, and radial cutting blade 2 64 is provided on the opposite side of tool sleeve 3 66. Through such an arrangement, when the rotating rod 2 rotates, tool sleeve 3 66 remains stationary relative to the rotating rod 2, so that the radial cutting blade 1 62 and the radial cutting blade 2 64 move in opposite directions relative to each other, generating shear force to cut the weeds entering the connection between tool sleeve 1 61, tool sleeve 2 63 and rotating rod 2.

[0028] The top of the tool sleeve 2 63 is fixedly connected to a vertical rod 65, and a threaded groove is provided on the top of the vertical rod 65. The top of the U-shaped plate 1 is threadedly connected to a positioning screw 8. There are multiple positioning screws 8 and they are distributed at equal intervals. The bottom end of the positioning screw 8 is threadedly connected to the threaded groove, which makes it easy to keep the tool sleeve 2 63 stationary relative to the rotating rod 2. At the same time, by unscrewing the positioning screw 8, obstruction can be avoided when disassembling the rotating rod 2 and the blade 4.

[0029] An anti-grass entanglement structure 2 7 is provided on the opposite side of the blade 4. The anti-grass entanglement structure 2 7 includes a mounting cylinder 71 fixedly connected to the opposite side of the blade 4. The mounting cylinder 71 is provided at one end of the blade 4 close to the circular knife seat 3. A mounting groove 72 is provided inside the mounting cylinder 71. A cutting tool 73 is inserted into the mounting groove 72. A through hole is provided on the cutting tool 73. A fixing screw 74 is threadedly connected to the front side of the mounting cylinder 71. The fixing screw 74 is used in conjunction with the through hole. By arranging the cutting tool 73 on the blade 4, when weeds are entangled on the blade 4, the cutting tool 73 can cut the weeds in the horizontal direction while the blade 4 rotates horizontally, thereby cutting off the weeds.

[0030] When the present invention is implemented in a specific way, when plowing the land, the rotation of the rotating rod 2 will drive the circular knife seat 3 to rotate, and at the same time, it will drive the tool sleeve 1 61 and the radial cutting blade 1 62 to rotate, while the tool sleeve 2 63 and the radial cutting blade 2 64 remain stationary relative to the tool sleeve 1 61 under the action of the vertical rod 65. At this time, the radial cutting blade 1 62 and the radial cutting blade 2 64 move in opposite directions relative to each other, generating a shear force, cutting the weeds that enter the connection between the tool sleeve 1 61, the tool sleeve 2 63 and the rotating rod 2, and cutting the weeds, thereby preventing the weeds from further entangled on the rotating rod 2, thereby ensuring that the rotary tiller tool can rotate normally. When weeds are entangled on the blade 4, the blade 4 rotates, and the cutting tool 73 can cut the weeds in the horizontal direction, thereby cutting off the weeds, and then quickly clearing the weeds, allowing the micro-tillage machine to work quickly, ensuring the working efficiency of the micro-tillage machine, and enhancing the effect of preventing weed entanglement.

[0031] The electrical components appearing in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that controls a computer, etc. The specific implementation method of this disclosure omits the detailed description of known functions and known components. To ensure the compatibility of the equipment, the operating methods adopted are consistent with the parameters of marketed equipment. At the same time, the contents not described in detail in this specification belong to the existing technology known to those skilled in the art.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mechanism for preventing grass entanglement of rotary tiller cutters, characterized by: include: A U-shaped plate (1), the inner side of the U-shaped plate (1) being rotatably connected to a rotating rod (2); A circular knife seat (3), wherein the circular knife seat (3) is fixedly connected to the outer wall of the rotating rod (2), and the circular knife seat (3) is provided in plurality and distributed at equal intervals; A blade (4), wherein the blade (4) is symmetrically arranged on the circular blade seat (3); A baffle (5), wherein the baffle (5) is fixedly connected to one side of the circular knife seat (3); An anti-grass entanglement structure (6) is provided on both sides of the circular blade holder (3), and the anti-grass entanglement structure (6) includes a tool sleeve (61) fixedly connected to the side of the circular blade holder (3) away from the baffle (5) and the side of the baffle (5) away from the circular blade holder (3), and a radial cutting blade (62) is provided on the side of the tool sleeve (61) away from the circular blade holder (3). A plurality of tool sleeves (63) distributed at equal intervals are rotatably connected to the outer wall of the rotating rod (2), and the tool sleeve (63) is provided between two adjacent circular blade holders (3). Both ends of the tool sleeve (63) are provided with radial cutting blades (64), and the tool sleeve (61) is sleeved on the outside of the tool sleeve (63); The second anti-grass entanglement structure (7) is provided on the opposite side of the blade (4), and the second anti-grass entanglement structure (7) includes a mounting tube (71) fixedly connected to the opposite side of the blade (4), and the mounting tube (71) is provided at one end of the blade (4) close to the circular blade seat (3). A mounting groove (72) is provided inside the mounting tube (71), and a cutting tool (73) is inserted into the mounting groove (72). A through hole is provided on the cutting tool (73), and a fixing screw (74) is threadedly connected to the front side of the mounting tube (71), and the fixing screw (74) is used in conjunction with the through hole.

2. The anti-grass entanglement mechanism for rotary tiller cutters according to claim 1, characterized in that: The second tool sleeve (63) is inscribed in the first tool sleeve (61).

3. The anti-grass entanglement mechanism for rotary tiller cutters according to claim 1, characterized in that: Both sides of the inner side of the U-shaped plate (1) are fixedly connected with a tool sleeve three (66), and the tool sleeve three (66) is sleeved on the outside of the rotating rod (2). The opposite side of the tool sleeve three (66) is provided with a radial cutting blade two (64).

4. The anti-grass entanglement mechanism for rotary tiller cutters according to claim 1, characterized in that: The top of the second tool sleeve (63) is fixedly connected with a vertical rod (65), and the top of the vertical rod (65) is provided with a thread groove.

5. The mechanism for preventing grass entanglement of rotary tiller cutters according to claim 4, characterized in that: The top of the U-shaped plate (1) is threadedly connected with a positioning screw (8), and there are multiple positioning screws (8) distributed at equal intervals. The bottom end of the positioning screw (8) is threadedly connected to the thread groove.

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