Anti-winding grass rotary blade

Abstract

This utility model discloses an anti-tangle rotary tiller blade, comprising a hexagonal sleeve for fitting and fixing onto a rotary tiller shaft. Multiple blade holders are fixedly arranged at intervals on the hexagonal sleeve, and rotary tiller blades are mounted on the blade holders via blade fixing bolts. An anti-tangle ring cover is provided at the end of the hexagonal sleeve that inserts into the rotary tiller shaft. The anti-tangle ring cover is fixedly mounted on the end of the hexagonal sleeve, and the outer circumference of the hexagonal sleeve is fixedly connected to the inner ring of the anti-tangle ring cover via spokes. Two or more anti-tangle cutting blades are fixedly arranged in a circular array on the outer circumference of the anti-tangle ring cover. This anti-tangle rotary tiller blade has an ingenious structure that prevents grass from tangling and avoids damage to the oil seal at the rotary tiller shaft mounting location of the transmission mechanism due to friction caused by tangled grass.

Description

Technical Field

[0001] This utility model relates to the technical field of agricultural tillage machinery parts, specifically an anti-weed rotary tillage blade. Background Technology

[0002] Small agricultural tillage machinery, powered by small diesel or gasoline engines, is characterized by its light weight, small size, and simple structure. It is widely applicable to dry land, paddy fields, and orchards in plains, mountains, and hills. Its lightweight design allows for easy movement in the fields, making it convenient for users to operate and store. It eliminates the problem of large agricultural machinery being unable to access mountainous fields, making it the best alternative to oxen for farmers.

[0003] Small agricultural tillage machinery requires rotary tillers to cut, break up soil clods, and loosen and mix the topsoil during rotary tillage. However, due to the inevitable presence of crop residues or weeds in the field, these often become entangled in the rotary tillers and shaft, increasing resistance and damaging the oil seal at the shaft's mounting point. This renders the rotary tillers unusable, forcing operators to stop the machine to clear the weeds / straw and replace the oil seal before restarting, impacting operational efficiency and overall tillage. Therefore, a rotary tiller designed to prevent weed entanglement and avoid oil seal damage caused by weeds is needed. Summary of the Invention

[0004] The purpose of this utility model is to address the problems existing in the prior art by providing an anti-weed-entanglement rotary tiller blade. This anti-weed-entanglement rotary tiller blade has a cleverly designed structure that can prevent weeds from getting entangled and also avoid damage to the oil seal at the rotary tiller shaft of the transmission mechanism caused by friction from entangled weeds.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A rotary tiller blade designed to prevent weed tangling includes a hexagonal sleeve for attaching and fixing to a rotary tiller shaft. Multiple blade holders are fixedly arranged at intervals on the hexagonal sleeve, and rotary tiller blades are mounted on the blade holders via blade fixing bolts. The hexagonal sleeve has pin holes for locking and connecting with the rotary tiller shaft using pins. Specifically, after the rotary tiller shaft is inserted into the hexagonal sleeve, a pin is inserted into the pin hole to prevent the rotary tiller shaft from loosening from the hexagonal sleeve. An anti-tangling ring is provided at the end of the hexagonal sleeve where the rotary tiller shaft is inserted. The anti-tangling ring cover is fixed at the end of the hexagonal bushing. The outer circumference of the hexagonal bushing is fixedly connected to the inner ring of the anti-tangling ring cover by spokes. Two or more anti-tangling cutters are fixedly arranged in a circular array on the outer circumference of the anti-tangling ring cover. When installing the anti-tangling rotary tiller blades, they are installed in pairs, that is, symmetrically installed on the rotary tiller shaft of the agricultural tillage machinery. The anti-tangling ring cover can cover the outer circumference of the oil seal between the rotary tiller shaft and the transmission box, preventing weeds from getting tangled around the outer circumference of the oil seal between the rotary tiller shaft and the transmission box, which would cause friction damage to the oil seal.

[0007] A further preferred embodiment: the blade holder is equipped with four rotary tillage blades, with the bends of the two rotary tillage blades at one opposite corner of the blade holder facing to the left, and the bends of the two rotary tillage blades at the other opposite corner of the blade holder facing to the right, and the rotary tillage blades on adjacent blade holders are staggered, i.e., not on the same axis.

[0008] A further preferred embodiment: the blade holder is equipped with three rotary tiller blades, one or two of which have their bends facing left, while the remaining blades have their bends facing right. Furthermore, the rotary tiller blades on adjacent blade holders are staggered, meaning they are not on the same axis. Each blade holder is equipped with rotary tiller blades facing both left and right, which facilitates the cutting of weeds and straw during rotary tillage, preventing them from becoming entangled.

[0009] A further preferred embodiment: A hoe-cutting plate is mounted on the blade holder via a hoe-cutting plate mounting seat. The hoe-cutting plate has a U-shaped cross-section and is arranged along the length of the hexagonal bushing. The hoe-cutting plate is connected and fixed to the hoe-cutting plate mounting seat via hoe-cutting plate fixing bolts, and the hoe-cutting plate mounting seat is connected and fixed to the blade holder via blade body fixing bolts. When installing the blade holder and rotary tiller blades, space must be reserved for installing the hoe-cutting plate, and the protrusion height of the hoe-cutting plate should not exceed half the length of the rotary tiller blade. Corresponding to the number of rotary tiller blades, three hoe-cutting plates are provided.

[0010] This anti-weed rotary tiller blade has the following advantages:

[0011] 1. This anti-tangle rotary tiller has a cleverly designed structure. An anti-tangle ring is installed at the end of the hexagonal shaft sleeve that is inserted into the rotary tiller shaft. The anti-tangle ring is fixedly installed at the end of the hexagonal shaft sleeve, and two or more anti-tangle cutters are fixedly installed in a circular array on the outer circumference of the anti-tangle ring. During installation, the anti-tangle ring can cover the outer circumference of the oil seal between the rotary tiller shaft and the transmission box, preventing weeds from getting entangled on the outer circumference of the oil seal between the rotary tiller shaft and the transmission box, which would cause friction damage to the oil seal.

[0012] 2. Each blade holder is equipped with rotary tillage blades with the curved ends facing left and right, which facilitates the cutting of weeds and straw during rotary tillage, and prevents weeds and straw from getting tangled. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the anti-weed-tangling rotary tiller blade in Example 1. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the anti-weed-tangling rotary tiller blade in Example 1. Figure 2 ;

[0015] Figure 3 yes Figure 2 A left-view diagram;

[0016] Figure 4 yes Figure 2 A diagram showing the view from the right.

[0017] Figure 5 This is a schematic diagram of the anti-weed-tangling rotary tiller blade in Example 2. Figure 1 ;

[0018] Figure 6 This is a schematic diagram of the anti-weed-tangling rotary tiller blade in Example 2. Figure 2 ;

[0019] Figure 7 yes Figure 6 A left-view diagram;

[0020] Figure 8 yes Figure 6 A diagram showing the view from the right.

[0021] The names corresponding to the serial numbers in the figure are:

[0022] 1. Anti-tangle ring cover, 2. Anti-tangle cutter, 3. Rotary tiller blade body, 4. Blade holder, 5. Blade body fixing bolt, 6. Hexagonal bushing, 7. Pin hole, 8. Spoke, 9. Hoe cutting plate, 10. Hoe cutting plate mounting base, 11. Hoe cutting plate fixing bolt. Detailed Implementation

[0023] To provide a more detailed description of this utility model, the following description, in conjunction with the embodiments and accompanying drawings, will further illustrate this utility model. Example 1

[0024] A rotary tiller blade designed to prevent weed entanglement includes a hexagonal sleeve 6 for fitting and fixing onto a rotary tiller shaft. Multiple blade holders 4 are fixedly arranged at intervals on the hexagonal sleeve 6. Rotary tiller blades 3 are mounted on the blade holders 4 via blade fixing bolts 5. The hexagonal sleeve 6 has pin holes 7 for pin-connection and positioning with the rotary tiller shaft. Specifically, after the rotary tiller shaft is inserted into the hexagonal sleeve 6, a pin is inserted into the pin hole 7 to prevent the rotary tiller shaft from loosening from the hexagonal sleeve 6. An anti-tangle ring cover 1 is provided at the end of the rotary tiller shaft. The anti-tangle ring cover 1 is fixedly installed on the end of the hexagonal shaft sleeve 6. The outer circumference of the hexagonal shaft sleeve 6 is fixedly connected to the inner ring of the anti-tangle ring cover 1 through spokes 8. Two or more anti-tangle cutters 2 are fixedly arranged in a circular array on the outer circumference of the anti-tangle rotary tiller blades. When the anti-tangle rotary tiller blades are installed, the anti-tangle ring cover can cover the outer circumference of the oil seal between the rotary tiller shaft and the transmission box, so as to prevent weeds from getting entangled on the outer circumference of the oil seal between the rotary tiller shaft and the transmission box, causing friction damage to the oil seal.

[0025] The blade holder 4 is equipped with four rotary tillage blades 3. The two rotary tillage blades 3 on one opposite corner of the blade holder 4 are installed with their bends facing to the left, and the two rotary tillage blades 3 on the other opposite corner of the blade holder 4 are installed with their bends facing to the right. The rotary tillage blades 3 on adjacent blade holders 4 are staggered and not on the same axis. Example 2

[0026] A rotary tiller blade designed to prevent weed entanglement includes a hexagonal sleeve 6 for fitting and fixing onto a rotary tiller shaft. Multiple blade holders 4 are fixedly arranged at intervals on the hexagonal sleeve 6. Rotary tiller blades 3 are mounted on the blade holders 4 via blade fixing bolts 5. The hexagonal sleeve 6 has pin holes 7 for pin-connection and positioning with the rotary tiller shaft. Specifically, after the rotary tiller shaft is inserted into the hexagonal sleeve 6, a pin is inserted into the pin hole 7 to prevent the rotary tiller shaft from loosening from the hexagonal sleeve 6. An anti-tangle ring cover 1 is provided at the end of the rotary tiller shaft. The anti-tangle ring cover 1 is fixedly installed on the end of the hexagonal shaft sleeve 6. The outer circumference of the hexagonal shaft sleeve 6 is fixedly connected to the inner ring of the anti-tangle ring cover 1 through spokes 8. Two or more anti-tangle cutters 2 are fixedly arranged in a circular array on the outer circumference of the anti-tangle rotary tiller blades. When the anti-tangle rotary tiller blades are installed, the anti-tangle ring cover can cover the outer circumference of the oil seal between the rotary tiller shaft and the transmission box, so as to prevent weeds from getting entangled on the outer circumference of the oil seal between the rotary tiller shaft and the transmission box, causing friction damage to the oil seal.

[0027] The blade holder 4 is equipped with three rotary tillage blades 3. One or two of the three rotary tillage blades 3 are installed with their bends facing to the left, while the remaining rotary tillage blades 3 are installed with their bends facing to the right. Furthermore, the rotary tillage blades 3 on adjacent blade holders 4 are staggered, meaning they are not on the same axis.

[0028] A hoe-cutting plate 9 is mounted on the blade holder 4 via a hoe-cutting plate mounting seat 10. The hoe-cutting plate 9 has a 7-shaped cross-section and is arranged along the length of the hexagonal bushing 6. The hoe-cutting plate 9 is connected and fixed to the hoe-cutting plate mounting seat 10 via hoe-cutting plate fixing bolts 11. The hoe-cutting plate mounting seat 10 is connected and fixed to the blade holder 4 via blade body fixing bolts 5. When installing the blade holder 4 and the rotary tiller blade 3, space must be reserved for installing the hoe-cutting plate 9, and the protrusion height of the hoe-cutting plate 9 shall not exceed half the length of the rotary tiller blade 3.

[0029] The above description is not intended to limit the present utility model, nor is the present utility model limited to the above examples. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should be protected by the present utility model.

Claims

1. A rotary tiller blade for preventing weed entanglement, comprising a hexagonal bushing (6) for fitting and fixing onto a rotary tiller shaft, wherein a plurality of blade holders (4) are fixedly arranged at intervals on the hexagonal bushing (6), and a rotary tiller blade (3) is mounted on the blade holder (4) by blade fixing bolts (5), characterized in that: The hexagonal bushing (6) is provided with an anti-tangling ring cover (1) at the end of the rotary tiller shaft. The anti-tangling ring cover (1) is fixedly installed at the end of the hexagonal bushing (6). The outer periphery of the hexagonal bushing (6) is fixedly connected to the inner ring of the anti-tangling ring cover (1) through spokes (8). Two or more anti-tangling cutters (2) are fixedly arranged in a circular array on the outer periphery of the anti-tangling ring cover (1).

2. The anti-weed rotary tiller blade according to claim 1, characterized in that: The blade holder (4) is equipped with four rotary tillage blades (3). The two rotary tillage blades (3) on one corner of the blade holder (4) are installed with their bends facing to the left, and the two rotary tillage blades (3) on the other corner of the blade holder (4) are installed with their bends facing to the right. The rotary tillage blades (3) on two adjacent blade holders (4) are installed in a staggered manner, that is, not on the same axis.

3. The anti-weed rotary tiller blade according to claim 1, characterized in that: The blade holder (4) is equipped with three rotary tillage blades (3). One or two of the three rotary tillage blades (3) are installed with their bends facing to the left, while the bends of the remaining rotary tillage blades (3) are installed with their bends facing to the right. The rotary tillage blades (3) on two adjacent blade holders (4) are installed in a staggered manner, that is, not on the same axis.

4. The anti-weed rotary tiller blade according to claim 3, characterized in that: The cutter holder (4) is equipped with a hoe cutting plate (9) via a hoe cutting plate mounting seat (10). The hoe cutting plate (9) has a 7-shaped cross section. The hoe cutting plate (9) is arranged along the length of the hexagonal bushing (6). The hoe cutting plate (9) is connected and fixed to the hoe cutting plate mounting seat (10) via hoe cutting plate fixing bolts (11). The hoe cutting plate mounting seat (10) is connected and fixed to the cutter holder (4) via cutter body fixing bolts (5).

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