Anti-winding grass two-axle rotary cultivator

Abstract

The utility model discloses a kind of anti-entangling grass double-shaft rotary cultivators, it is related to the technical field of agricultural machinery, including main component, including two rotary tillage shafts, rotary tillage shaft outside is provided with rack, and anti-entangling grass fender is provided on rack;Mounting assembly is set on rack, including mounting piece, and mounting piece includes the fixed disc fixed on rack, sliding slot is opened in fixed disc inner wall, and moving frame is set in sliding slot inner wall, and elastic cord is fixed in one end of moving frame, and the other end of elastic cord is fixed in sliding slot inner wall.The utility model has beneficial effect for: through sliding block installation and the anti-entangling grass fender that can swing left and right with rotary tillage shaft as fulcrum, mobile dynamic adaptation weed winding working condition, initiatively dredge, cut off grass ball and avoid accumulation to form new winding fulcrum, significantly improve anti-entangling efficiency to adapt complex plot operation demand.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a dual-shaft rotary tiller that prevents grass entanglement. Background Technology

[0002] A dual-shaft rotary tiller is a type of machinery used for farmland operations. It uses blades on two rotating shafts to cut, break up, and mix the soil twice in succession to achieve a finer land preparation effect and improve tillage efficiency. During operation, when facing fields with dense weeds, especially high-fiber, tough weeds such as reeds and vines, the cut weeds are very likely to entangle and form clumps. In this case, anti-entanglement guards are used to protect the connection points. The anti-entanglement guards are fixed to the machine housing with bolts to block the connection between the rotary tiller shaft and the bearing of the machine housing.

[0003] In existing technologies, anti-weed guard plates are mostly rigidly fixed to the machine casing with bolts. Their fixed structural design makes the guard plates unable to adapt to the dynamic working conditions of weed entanglement. They are not only difficult to actively guide or cut off the entangled grass clumps, but also easy for the grass clumps to accumulate and form new entanglement points, ultimately resulting in low anti-weed entanglement efficiency and difficulty in meeting the operational needs of complex plots. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the above and / or existing anti-weed entanglement dual-shaft rotary tillers, this utility model is proposed.

[0006] Therefore, the problem that this utility model aims to solve is that the protection range is relatively small.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a dual-shaft rotary tiller for preventing grass entanglement, which includes a main body component including two rotary tillage shafts, a frame is provided on the outside of the rotary tillage shafts, and an anti-grass entanglement guard plate is provided on the frame;

[0008] The mounting assembly, mounted on the frame, includes a mounting component. The mounting component includes a fixed plate fixed to the frame. The inner wall of the fixed plate has a groove, and the inner wall of the groove has a movable frame. One end of the movable frame is fixed with an elastic rope, and the other end of the elastic rope is fixed to the inner wall of the groove.

[0009] As a preferred embodiment of the anti-grass-tangling dual-shaft rotary tiller of this utility model, the installation component further includes a locking component, which includes a slider disposed on the inner wall of the movable frame, and the other end of the slider is fixed to the anti-grass-tangling guard plate.

[0010] As a preferred embodiment of the anti-grass-tangling dual-shaft rotary tiller of this utility model, wherein: an extrusion plate is inserted into the inner wall of the fixed disc.

[0011] As a preferred embodiment of the anti-grass-tangling dual-shaft rotary tiller of this utility model, a protective disc is fixed to one end of the extrusion plate, a spring is sleeved on the outside of the extrusion plate, one end of the spring is fixed to one end of the protective disc, and the other end is fixed to the surface of the fixed disc.

[0012] In a preferred embodiment of the anti-grass-tangling dual-shaft rotary tiller of this utility model, one end of the extrusion plate is an inclined surface.

[0013] As a preferred embodiment of the anti-grass-tangling dual-shaft rotary tiller of this utility model, the mounting assembly further includes a driving component, which includes a pressing rod fixed to the surface of the rotary shaft.

[0014] As a preferred embodiment of the anti-grass-tangling dual-shaft rotary tiller of this utility model, wherein: an extrusion column is provided on one side of the extrusion rod, a bracket is sleeved on the outside of the extrusion column, and the bracket is fixed to the anti-grass-tangling guard plate.

[0015] As a preferred embodiment of the anti-grass-tangling dual-shaft rotary tiller of this utility model, the inner wall of the extrusion column is provided with a moving groove, a sliding block is provided in the moving groove, and a rotating sleeve is fixed on the surface of the sliding block.

[0016] As a preferred embodiment of the anti-grass-tangling dual-shaft rotary tiller of this utility model, a support sleeve is provided on the outer side of the rotating sleeve, an elastic ring is fixed at one end of the rotating sleeve, and the other end of the elastic ring is fixed to the inner wall of the support sleeve.

[0017] As a preferred embodiment of the anti-grass-tangling dual-shaft rotary tiller of this utility model, a connecting shaft is fixed to the surface of the rotating sleeve, and a positioning rod is fixed to the frame.

[0018] The beneficial effects of this utility model are as follows: the anti-tangling grass guard plate, which is installed by a slider and can swing left and right with the rotary tiller shaft as the fulcrum, can dynamically adapt to the working conditions of weed tangling, actively guide and cut grass clumps and avoid accumulation to form new tangling fulcrums, significantly improving the anti-tangling efficiency to meet the needs of complex plot operations. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A structural diagram of a dual-shaft rotary tiller designed to prevent grass entanglement.

[0021] Figure 2 Diagram of the rotary tiller shaft structure for a dual-shaft rotary tiller designed to prevent grass entanglement.

[0022] Figure 3 Diagram of the fixed disc structure of a dual-shaft rotary tiller to prevent grass entanglement.

[0023] Figure 4 Diagram of the slider structure of a dual-shaft rotary tiller to prevent grass entanglement.

[0024] Figure 5 A diagram showing the spring structure of a dual-shaft rotary tiller designed to prevent grass entanglement.

[0025] Figure 6 A cross-sectional view of the support sleeve for a dual-shaft rotary tiller designed to prevent grass entanglement.

[0026] In the diagram: 1. Main component; 11. Rotary tiller shaft; 12. Frame; 13. Anti-grass entanglement guard plate; 2. Mounting component; 21. Mounting part; 211. Fixed plate; 2111. Slide groove; 212. Moving frame; 213. Elastic rope; 22. Clamping part; 221. Slider; 222. Extrusion plate; 223. Protective plate; 224. Spring; 23. Driving component; 231. Extrusion rod; 232. Extrusion column; 232-1. Moving groove; 233. Bracket; 234. Sliding block; 235. Rotating sleeve; 236. Support sleeve; 237. Elastic ring; 238. Connecting shaft; 239. Positioning rod. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0030] Example 1: Refer to Figures 1-6 This is the first embodiment of the present invention. This embodiment provides an anti-grass-tangling dual-shaft rotary tiller. The anti-grass-tangling dual-shaft rotary tiller includes a main body component 1 and an installation component 2. The two components work together to enhance the anti-grass-tangling performance of the anti-grass-tangling guard plate 13.

[0031] The main component 1 includes two rotary tillers 11, with a frame 12 installed on the outside of the rotary tillers 11, and an anti-weed guard plate 13 installed on the frame 12.

[0032] As the core transmission component of the rotary tiller, the rotary shaft 11 is equipped with rotary blades on both outer ends to drive the blades to rotate and cut, crush and mix the soil. The rotary shaft 11 is rotatably connected to the frame 12 through bearings. The frame 12 not only provides stable support for the rotary shaft 11, but also ensures the precise positioning of its axis. In addition, the anti-graft guard plate 13 is installed at the connection between the frame 12 and the rotary shaft 11 to prevent weeds and straw from getting into the bearing gaps, thereby effectively preventing mechanical failure and protecting the bearing from damage.

[0033] This is existing technology, and this solution will not be described in detail. Moreover, those skilled in the art can clearly understand its working principle.

[0034] Mounting component 2, set on frame 12, includes mounting component 21. Mounting component 21 includes a fixed plate 211 fixed on frame 12. The inner wall of fixed plate 211 is provided with a sliding groove 211-1. The inner wall of sliding groove 211-1 is provided with a movable frame 212. One end of movable frame 212 is fixed with an elastic rope 213, and the other end of elastic rope 213 is fixed to the inner wall of sliding groove 211-1.

[0035] The fixed plate 211 is fixed to the frame 12. When the anti-wrap grass guard plate 13 needs to be installed, a through groove is connected to the top of the slide 211-1. By moving the anti-wrap grass guard plate 13, the slider 221 is driven into the inner wall of the through groove. At this time, the slider 221 will fall into the inner wall of the moving frame 212, thus completing the installation of the anti-wrap grass guard plate 13. When the rotary tiller 11 rotates, it will cause the anti-wrap grass guard plate 13 to rotate, which will drive the slider 221 to rotate. The slider 221... The moving frame 212 is squeezed to slide on the inner wall of the chute 211-1. When the moving frame 212 moves, it will pull the elastic rope 213. When the anti-tangle grass guard 13 rotates to the desired position, the elastic rope 213 will be released, which will drive the anti-tangle grass guard 13 back to its original position for the next use. When the swing-type anti-tangle grass guard 13 encounters thick straw, soil or stones, it will actively swing outward to avoid them, reduce mechanical resistance, and make the rotary tiller 11 more evenly stressed.

[0036] Example 2: Refer to Figures 1-6 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0037] Specifically, the installation component 2 also includes a locking component 22, which includes a slider 221 disposed on the inner wall of the movable frame 212, and the other end of the slider 221 is fixed to the anti-grass entanglement guard plate 13.

[0038] The anti-grass entanglement guard plate 13 is driven to align the slider 221 with the through groove and embed it. The slider 221 will then naturally fall into the inner cavity of the moving frame 212. The anti-grass entanglement guard plate 13 can be quickly positioned and installed without additional fasteners, making the operation convenient and efficient.

[0039] An extrusion plate 222 is inserted into the inner wall of the fixed plate 211.

[0040] After the anti-grass entanglement guard plate 13 drives the slider 221 into the through groove, it will squeeze the extrusion plate 222, causing the extrusion plate 222 to move. After continuous movement, the slider 221 will enter the inner wall of the moving frame 212.

[0041] A protective disc 223 is fixed to one end of the extrusion plate 222, and a spring 224 is sleeved on the outside of the extrusion plate 222. One end of the spring 224 is fixed to one end of the protective disc 223, and the other end is fixed to the surface of the fixed disc 211.

[0042] After the anti-grass entanglement guard plate 13 drives the slider 221 into the through groove, it will squeeze the extrusion plate 222, causing the extrusion plate 222 to move. The movement of the extrusion plate 222 drives the protective disc 223 to pull the spring 224. After continuous movement, the slider 221 separates from the extrusion plate 222 and enters the inner wall of the moving frame 212. At this time, the spring 224 rebounds and drives the extrusion plate 222 back to its original position, blocking the top of the slider 221 to prevent the slider 221 from moving.

[0043] One end of the extrusion plate 222 is a bevel.

[0044] One end of the extrusion plate 222 is set as an inclined surface, which allows the slider 221 to smoothly extrude the extrusion plate 222 and achieve displacement by being guided by the inclined surface when entering the through groove. At the same time, after separation, the inclined surface does not affect the extrusion plate 222 to rebound and reset to stop the slider 221, thus taking into account both the ease of installation and the reliability of the limit.

[0045] Example 3: Reference Figure 5 and Figure 6 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0046] Specifically, the mounting component 2 also includes a drive component 23, which includes a pressing rod 231 fixed to the surface of the rotary tiller 11.

[0047] Rotating the rotary tiller shaft 11 will drive the pressing rod 231 to rotate synchronously, and the rotation of the pressing rod 231 will cause the anti-grass entanglement guard plate 13 to rotate.

[0048] An extrusion column 232 is provided on one side of the extrusion rod 231, and a bracket 233 is sleeved on the outside of the extrusion column 232. The bracket 233 is fixed on the anti-grass entanglement guard plate 13.

[0049] Rotating the rotary tiller shaft 11 will compress the extrusion column 232. Moving the extrusion column 232 will cause the anti-grass entanglement guard plate 13 to rotate. The bracket 233 is used to support the extrusion column 232.

[0050] The inner wall of the extrusion column 232 is provided with a moving groove 232-1, and a sliding block 234 is provided in the moving groove 232-1. A rotating sleeve 235 is fixed on the surface of the sliding block 234.

[0051] Rotating the rotary tiller shaft 11 drives the extrusion rod 231 to move, and the extrusion rod 231 extrudes the extrusion column 232. The extrusion column 232 drives the support 233 to rotate, and the support 233 causes the anti-grass entanglement guard plate 13 to rotate. When the extrusion column 232 drives the rotating sleeve 235 to move to the side of the positioning rod 239 and is extruded, the rotating sleeve 235 will rotate. The rotation of the rotating sleeve 235 drives the sliding block 234 to extrude the moving groove 232-1, causing the extrusion column 232 to move on the inner wall of the rotating sleeve 235 and separate from the extrusion rod 231. At this time, the extrusion rod 231 will not drive the extrusion column 232 to move as the rotary tiller shaft 11 rotates.

[0052] A support sleeve 236 is fitted on the outer side of the rotating sleeve 235. An elastic ring 237 is fixed to one end of the rotating sleeve 235, and the other end of the elastic ring 237 is fixed to the inner wall of the support sleeve 236.

[0053] A small limiting groove is provided on the support sleeve 236. The rotation of the rotary tiller 11 drives the extrusion rod 231 to move, and the extrusion rod 231 extrudes the extrusion column 232. The extrusion column 232 drives the bracket 233 to rotate, and the bracket 233 causes the anti-weed guard plate 13 to rotate. The extrusion column 232 drives the rotating sleeve 235 to move, and the rotating sleeve 235 drives the connecting shaft 238 to move. After the connecting shaft 238 moves to the side of the positioning rod 239, it is extruded in the opposite direction. The rotation of the connecting shaft 238 will drive the rotating sleeve 235 to rotate. The rotation of the rotating sleeve 235 will apply a torsional force to the elastic ring 237. The elastic ring 237 has a straight groove, which does not hinder the movement of the extrusion column 232 in the rotating sleeve 235. The rotation of the rotating sleeve 235 drives the sliding block 234 to extrude the moving groove 232-1, causing the extrusion column 232 to move on the inner wall of the rotating sleeve 235 and separate from the extrusion rod 231. At this time, the extrusion rod 231 will not drive the extrusion column 232 to move as the rotary tiller 11 rotates.

[0054] When the squeezing rod 231 separates from the squeezing column 232, the force of the elastic ring 237 rotating causes the rotating sleeve 235 to reverse, thereby causing the squeezing column 232 to return to its original position, so that the squeezing rod 231 can drive the squeezing column 232 back to its original position again. At this time, the anti-grass entanglement guard plate 13 will also return to its original position through the pulling force of the elastic rope 213.

[0055] A connecting shaft 238 is fixed to the surface of the rotating sleeve 235, and a positioning rod 239 is fixed to the frame 12.

[0056] The movement of the extrusion column 232 causes the rotating sleeve 235 to move. The movement of the rotating sleeve 235 causes the connecting shaft 238 to contact the positioning rod 239 and be extruded in the opposite direction. This will cause the rotating sleeve 235 to rotate. The rotation of the rotating sleeve 235 applies a torsional force to the elastic ring 237, causing the extrusion column 232 to move.

[0057] After the extrusion column 232 separates from the extrusion rod 231, the elastic ring 237 first releases the rotational force, causing the rotating sleeve 235 to reverse, and then pulls the extrusion column 232 and the bracket 233 back to the initial position, providing basic support for the reset of the anti-grass entanglement guard plate 13. At the same time as the bracket 233 resets, the elastic rope 213 releases the pull force, directly pulling the anti-grass entanglement guard plate 13 back to the initial position along the preset trajectory, ensuring that it can accurately respond to the drive of the extrusion rod 231 in the next operation and realize cyclic anti-entanglement.

[0058] In use, the anti-grass entanglement guard plate 13 is aligned with its fixed slider 221 and inserted into the through slot. The slider 221 is guided by the inclined surface of the extrusion plate 222, which smoothly extrudes the extrusion plate 222 to make it move laterally. At the same time, the extrusion plate 222 drives the protective disc 223 to stretch the spring 224 and accumulate rebound potential energy. The slider 221 continues to move until it separates from the extrusion plate 222 and falls naturally into the inner cavity of the moving frame 212. At this time, the spring 224 releases the rebound potential energy, which drives the extrusion plate 222 back to its original position and accurately stops at the top of the slider 221, limiting the vertical displacement of the slider 221. The anti-grass entanglement guard plate 13 can be quickly positioned and installed without additional fasteners.

[0059] After the rotary tiller is started, the rotary shaft 11 rotates synchronously, which on the one hand drives the extrusion rod 231 on its surface to move circumferentially, and on the other hand drives the rotary blades at both ends to cut and break the soil. When the extrusion rod 231 rotates to one side of the extrusion column 232, it generates a lateral extrusion force on the extrusion column 232. After being extruded, the extrusion column 232 drives the bracket 233 to rotate around the hinge point, which in turn drives the anti-grass entanglement guard plate 13 to swing synchronously. During the swinging process, the anti-grass entanglement guard plate 13 drives the slider 221 to press the moving frame 212, so that the moving frame 212 moves along the groove. 211-1 The elastic rope 213 slides and stretches, accumulating restoring tension; when encountering thick straw, clods of soil, or stones, the anti-tangling guard plate 13 actively swings outward to avoid hard resistance, ensuring that the rotary tiller shaft 11 is evenly stressed and avoids jamming. While the squeezing column 232 moves, it drives the rotating sleeve 235 to move axially along the support sleeve 236, and the rotating sleeve 235 in turn pulls the connecting shaft 238 to move synchronously; when the connecting shaft 238 moves to the side of the positioning rod 239, it is subjected to the reverse pressure of the positioning rod 239, and the connecting shaft 238 rotates. This causes the rotating sleeve 235 to rotate synchronously. As the rotating sleeve 235 rotates, it applies a torsional force to the elastic ring 237. Subsequently, the sliding block 234 on the inner wall of the rotating sleeve 235 generates a radial extrusion force on the moving groove 232-1 of the extrusion column 232, causing the extrusion column 232 to move axially along the inner wall of the rotating sleeve 235, eventually completely separating from the extrusion rod 231. At this point, the extrusion rod 231 continues to rotate with the rotary tillage shaft 11 and no longer drives the extrusion column 232. After the extrusion rod 231 separates from the extrusion column 232, the elastic ring 237, which has accumulated torsional potential energy,... 7. Release the rotational force to drive the rotating sleeve 235 to rotate in the opposite direction and reset, thereby pulling the extrusion column 232 back to the initial position along the semi-circular limit groove of the support sleeve 236, ensuring that the extrusion rod 231 can accurately cooperate again when it rotates next. On the basis of the reset of the extrusion column 232 and the bracket 233, the stretched elastic rope 213 releases the pull force, directly pulling the anti-entanglement grass guard plate 13 back to the initial working position along the preset trajectory, completing one cycle of "drive swing - avoidance anti-entanglement - automatic reset", and preparing for the next round of anti-entanglement operation.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A dual-shaft rotary tiller with anti-weed entanglement, characterized in that: include, The main component (1) includes two rotary tillers (11), and a frame (12) is provided on the outside of the rotary tillers (11). An anti-tangle grass guard plate (13) is provided on the frame (12). The mounting component (2) is set on the frame (12) and includes a mounting piece (21). The mounting piece (21) includes a fixed plate (211) fixed on the frame (12). The inner wall of the fixed plate (211) is provided with a sliding groove (211-1). The inner wall of the sliding groove (211-1) is provided with a movable frame (212). One end of the movable frame (212) is fixed with an elastic rope (213), and the other end of the elastic rope (213) is fixed to the inner wall of the sliding groove (211-1).

2. The anti-weed-entanglement dual-shaft rotary tiller as described in claim 1, characterized in that: The installation component (2) also includes a locking member (22), which includes a slider (221) disposed on the inner wall of the movable frame (212), and the other end of the slider (221) is fixed to the anti-grass protection plate (13).

3. The anti-weed-entanglement dual-shaft rotary tiller as described in claim 2, characterized in that: An extrusion plate (222) is inserted into the inner wall of the fixed disk (211).

4. The anti-weed-entanglement dual-shaft rotary tiller as described in claim 3, characterized in that: One end of the extrusion plate (222) is fixed with a protective disc (223), and a spring (224) is sleeved on the outside of the extrusion plate (222). One end of the spring (224) is fixed to one end of the protective disc (223), and the other end is fixed to the surface of the fixed disc (211).

5. The anti-weed-entanglement dual-shaft rotary tiller as described in claim 4, characterized in that: One end of the extrusion plate (222) is an inclined surface.

6. The anti-weed-entanglement dual-shaft rotary tiller as described in claim 5, characterized in that: The mounting assembly (2) also includes a drive (23), which includes a pressing rod (231) fixed to the surface of the rotary tiller (11).

7. The anti-weed-entanglement dual-shaft rotary tiller as described in claim 6, characterized in that: An extrusion column (232) is provided on one side of the extrusion rod (231), and a bracket (233) is sleeved on the outside of the extrusion column (232). The bracket (233) is fixed on the anti-tangle grass guard plate (13).

8. The anti-weed-entanglement dual-shaft rotary tiller as described in claim 7, characterized in that: The inner wall of the extrusion column (232) is provided with a moving groove (232-1), and a sliding block (234) is provided in the moving groove (232-1). A rotating sleeve (235) is fixed on the surface of the sliding block (234).

9. The anti-weed-entanglement dual-shaft rotary tiller as described in claim 8, characterized in that: A support sleeve (236) is fitted on the outside of the rotating sleeve (235). An elastic ring (237) is fixed at one end of the rotating sleeve (235), and the other end of the elastic ring (237) is fixed to the inner wall of the support sleeve (236).

10. The anti-weed-tangling dual-shaft rotary tiller as described in claim 9, characterized in that: A connecting shaft (238) is fixed on the surface of the rotating sleeve (235), and a positioning rod (239) is fixed on the frame (12).

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