Ditching machine convenient for replacement of rotating cutter

Abstract

The ditcher comprises a fixed cover, the bottom end of the fixed cover is fixedly connected with a fixed frame, the two ends of the right side of the bottom of the fixed frame are fixedly connected with mounting plates, one end of each mounting plate is movably connected with a moving wheel, a lifting frame is arranged in the fixed cover, and a rotating cutter is arranged in the lifting frame. The bottom end of the lifting frame is provided with a disassembly and assembly structure used for rapidly replacing the ditching rotating cutter. According to the ditcher convenient to replace the rotating cutter, through the arrangement of the connecting shaft, a positioning bolt can be rotated to be separated from the interior of a threaded hole and taken down before ditching, then a rotating wheel can be pulled to take down the rotating wheel and the external ditching cutter, and then the appropriate rotating wheel and the appropriate ditching cutter are replaced according to requirements; the mounting sleeve in the rotating wheel is sleeved outside the connecting shaft, and finally the positioning bolt is inserted into the threaded hole and tightened, so that the rotating wheel and the ditching cutter can be positioned through the mounting sleeve, and the problem that the ditching rotating cutter cannot be quickly replaced is solved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural equipment technology, specifically to a trenching machine that facilitates the replacement of rotary blades. Background Technology

[0002] A ditching machine is a common type of agricultural machinery that can automatically dig ditches in the land to facilitate the placement of crop seeds. It is suitable for planting various crops such as potatoes, peanuts, and garlic. Compared with traditional manual ditching, it not only reduces labor costs but also digs ditches faster, which can effectively improve planting efficiency.

[0003] However, the trenching machines currently used in agricultural planting still have some defects in use. Before trenching, the rotary cutter used for trenching cannot be changed according to the soil conditions and trenching depth requirements, which affects the trenching effect.

[0004] A new type of trenching machine with convenient cutter replacement is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a trenching machine with convenient rotary cutter replacement, so as to solve the problem of the inability to quickly replace the trenching rotary cutter mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a trenching machine that facilitates the replacement of the rotary cutter, comprising a fixed cover, a fixed frame fixedly connected to the bottom end of the fixed cover, mounting plates fixedly connected to both ends of the bottom right side of the fixed frame, a movable wheel movably connected to one end of the mounting plate, a lifting frame provided inside the fixed cover, and a disassembly and assembly structure for quickly replacing the trenching rotary cutter at the bottom end of the lifting frame.

[0007] The disassembly and assembly structure includes a mounting plate. The front end of the lifting frame is movably connected to the mounting plate, and the rear end of the lifting frame is fixedly connected to a drive box. The front end of the mounting plate is movably connected to a rotating wheel, and the front end of the mounting plate is fixedly connected to a connecting shaft. The front end of the rotating wheel is fixedly connected to an installation sleeve. The front end of the connecting shaft has a threaded hole. A grooving cutter is fixedly connected to the outside of the rotating wheel, and a positioning bolt is movably connected to the front end of the installation sleeve.

[0008] As a further technical solution of this utility model, the positioning bolt is threadedly connected to the threaded hole, and the grooving cutters on the outside of the rotating wheel are arranged at equal intervals.

[0009] As a further technical solution of this utility model, the output end of the drive box is fixedly connected to the lifting frame and the mounting plate, and the mounting sleeve is movably connected to the connecting shaft.

[0010] As a further technical solution of this utility model, a fixing plate is fixedly connected inside the fixing cover, a hydraulic cylinder is fixedly connected to the top of the fixing plate, limit posts are fixedly connected to both sides of the top of the lifting frame, limit sleeves are fixedly connected to both sides of the top of the fixing plate, fixing posts are fixedly connected to both ends of the bottom left side of the fixing frame, a support sleeve is movably connected to the outside of the fixing post, and a buffer spring is fixedly connected to the top of the support sleeve.

[0011] As a further technical solution of this utility model, the limiting sleeve is slidably connected to the limiting post, and the output end of the hydraulic cylinder is fixedly connected to the lifting frame through the fixing plate.

[0012] As a further technical solution of this utility model, the two ends of the top right side of the fixed frame are fixedly connected to the fixed sleeves, the inside of the fixed sleeves is movably connected to the handrail, one end of the handrail is fixedly connected to the threaded rod, one end of the fixed sleeve is provided with a sliding groove, one end of the fixed sleeve is provided with a positioning slot, and the threaded rod passes through the sliding groove and is movably connected to the positioning nut.

[0013] As a further technical solution of this utility model, the positioning nut is movably connected to the positioning slot, and the threaded rod is slidably connected to the sliding groove.

[0014] As a further technical solution of this utility model, the sliding groove is connected to the interior of the fixed sleeve, and the positioning slots opened at one end of the fixed sleeve are arranged at equal intervals.

[0015] Compared with the prior art, the beneficial effects of this utility model are: this trenching machine with convenient rotary cutter replacement not only realizes the quick replacement of the trenching rotary cutter and the automatic control of the raising and lowering of the trenching rotary cutter, but also realizes the adjustment of the handle length;

[0016] (1) By setting up a connecting shaft, threaded hole, rotating wheel, trenching cutter, lifting frame, mounting plate, positioning bolt and mounting sleeve, the positioning bolt can be rotated to disengage it from the inside of the threaded hole before trenching and the positioning bolt can be removed. Then the rotating wheel and the trenching cutter on the outside can be pulled off. Then the appropriate rotating wheel and trenching cutter can be replaced according to the needs. The mounting sleeve inside the rotating wheel is fitted onto the outside of the connecting shaft. Finally, the positioning bolt is inserted into the threaded hole and tightened. The rotating wheel and trenching cutter can be positioned by the mounting sleeve, which realizes the quick replacement of the trenching cutter.

[0017] (2) By setting up a lifting frame, a fixed plate, a limit column, a hydraulic cylinder and a limit sleeve, when trenching is performed, the hydraulic cylinder at the top of the fixed plate is activated to push the lifting frame down. The lifting frame drives the wheel and trenching cutter at one end to descend. Then the drive box is activated to drive the wheel to rotate to trench. After trenching is completed, the hydraulic cylinder is activated to drive the lifting frame to rise. The lifting frame drives the wheel and trenching cutter to rise so that the device can be moved. The support sleeve located on one side of the bottom of the fixed frame can cooperate with the moving wheel to support the device, realizing automatic control of the wheel and trenching cutter to facilitate trenching and movement.

[0018] (3) By setting a fixed sleeve, positioning nut, slide groove, handrail, positioning slot and threaded rod, the positioning nut can be rotated before trenching to disengage it from the inside of the positioning slot. Then the handrail can be pulled to adjust the handrail to a suitable length and height according to the user's habits. The handrail moves the positioning nut to a suitable position through the threaded rod, and the positioning nut is turned back to tighten it so that it engages with the positioning slot at the corresponding position. The positioning slot can position the handrail through the threaded rod, thus realizing the adjustment of the handrail length. Attached Figure Description

[0019] Figure 1 This is a frontal cross-sectional view of the present invention.

[0020] Figure 2 This is a side view sectional structural diagram of the rotating wheel of this utility model;

[0021] Figure 3 This is a front view cross-sectional structural diagram of the fixing sleeve of this utility model;

[0022] Figure 4 This is an enlarged side view sectional diagram of the mounting plate of this utility model.

[0023] In the diagram: 1. Fixed cover; 2. Fixed frame; 3. Buffer spring; 4. Fixed column; 5. Support sleeve; 6. Connecting shaft; 7. Threaded hole; 8. Rotary wheel; 9. Grooving cutter; 10. Moving wheel; 11. Mounting plate; 12. Fixed sleeve; 13. Positioning nut; 14. Slide groove; 15. Handrail; 16. Positioning slot; 17. Lifting frame; 18. Fixed plate; 19. Limiting column; 20. Hydraulic cylinder; 21. Limiting sleeve; 22. Drive box; 23. Mounting plate; 24. Positioning bolt; 25. Mounting sleeve; 26. Threaded rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example: Please refer to Figure 1-4 A trenching machine that facilitates the replacement of the rotary cutter includes a fixed cover 1, a fixed frame 2 fixedly connected to the bottom end of the fixed cover 1, mounting plates 11 fixedly connected to both ends of the bottom right side of the fixed frame 2, a moving wheel 10 movably connected to one end of the mounting plate 11, a lifting frame 17 is provided inside the fixed cover 1, and a disassembly and assembly structure for quickly replacing the trenching rotary cutter is provided at the bottom end of the lifting frame 17.

[0026] The disassembly and assembly structure includes a mounting plate 23, a mounting plate 23 is movably connected to the front end of the lifting frame 17, a drive box 22 is fixedly connected to the rear end of the lifting frame 17, a rotating wheel 8 is movably connected to the front end of the mounting plate 23, a connecting shaft 6 is fixedly connected to the front end of the mounting plate 23, an installation sleeve 25 is fixedly connected to the front end of the rotating wheel 8, a threaded hole 7 is opened at the front end of the connecting shaft 6, a grooving cutter 9 is fixedly connected to the outside of the rotating wheel 8, and a positioning bolt 24 is movably connected to the front end of the installation sleeve 25.

[0027] The positioning bolt 24 is threaded to the threaded hole 7, and the grooving cutters 9 on the outside of the rotating wheel 8 are arranged at equal intervals;

[0028] The output end of the drive box 22 passes through the lifting frame 17 and is fixedly connected to the mounting plate 23, and the mounting sleeve 25 is movably connected to the connecting shaft 6;

[0029] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, before trenching, the positioning bolt 24 can be rotated to disengage it from the threaded hole 7 and the positioning bolt 24 can be removed. Then, the rotating wheel 8 and the external trenching cutter 9 can be removed by pulling it. Then, the appropriate rotating wheel 8 and trenching cutter 9 can be replaced as needed. The mounting sleeve 25 inside the rotating wheel 8 is fitted onto the outside of the connecting shaft 6. Finally, the positioning bolt 24 is inserted into the threaded hole 7 and tightened. The rotating wheel 8 and trenching cutter 9 can be positioned by the mounting sleeve 25, which enables quick replacement of the trenching cutter 9.

[0030] The fixed cover 1 is fixedly connected to the inside of the fixed plate 18. The top of the fixed plate 18 is fixedly connected to the hydraulic cylinder 20. The top of the lifting frame 17 is fixedly connected to the two sides of the top of the lifting frame 17. The top of the fixed plate 18 is fixedly connected to the two sides of the top of the fixed plate 18. The bottom left side of the fixed frame 2 is fixedly connected to the two ends of the fixed column 4. The fixed column 4 is movably connected to the outside of the fixed column 4. The top of the support sleeve 5 is fixedly connected to the top of the support sleeve 5.

[0031] The limiting sleeve 21 is slidably connected to the limiting post 19, and the output end of the hydraulic cylinder 20 passes through the fixing plate 18 and is fixedly connected to the lifting frame 17.

[0032] Specifically, such as Figure 1 and Figure 2 As shown, when trenching is performed, the hydraulic cylinder 20 at the top of the fixed plate 18 is activated to push the lifting frame 17 down. The lifting frame 17 drives the rotating wheel 8 and trenching cutter 9 at one end to descend. Then, the drive box 22 is activated to drive the rotating wheel 8 to rotate and trench. After trenching is completed, the hydraulic cylinder 20 is activated again to drive the lifting frame 17 to rise. The lifting frame 17 drives the rotating wheel 8 and trenching cutter 9 to rise so that the device can be moved. The support sleeve 5 located on one side of the bottom of the fixed frame 2 can cooperate with the moving wheel 10 to support the device, realizing automatic control of the lifting and lowering of the rotating wheel 8 and trenching cutter 9 to facilitate trenching and movement.

[0033] Fixed sleeves 12 are fixedly connected to both ends of the top right side of the fixed frame 2. Handrails 15 are movably connected inside the fixed sleeves 12. A threaded rod 26 is fixedly connected to one end of the handrails 15. A sliding groove 14 is opened at one end of the fixed sleeves 12. A positioning slot 16 is opened at one end of the fixed sleeves 12. The threaded rod 26 passes through the sliding groove 14 and is movably connected to the positioning nut 13.

[0034] The positioning nut 13 is movably connected to the positioning slot 16, and the threaded rod 26 is slidably connected to the slide groove 14;

[0035] The sliding groove 14 is connected to the interior of the fixed sleeve 12, and the positioning slots 16 opened at one end of the fixed sleeve 12 are arranged at equal intervals.

[0036] Specifically, such as Figure 1 and Figure 3 As shown, before trenching, the positioning nut 13 can be rotated to disengage it from the positioning slot 16. Then, the handrail 15 can be pulled to adjust its length and height according to user habits. The handrail 15 moves the positioning nut 13 to the appropriate position through the threaded rod 26, and the positioning nut 13 is rotated back to tighten it so that it engages with the corresponding positioning slot 16. The positioning slot 16 can position the handrail 15 through the threaded rod 26, thus allowing the length of the handrail 15 to be adjusted.

[0037] Working principle: Before trenching, the positioning nut 13 can be rotated to disengage it from the positioning slot 16. Then, the handle 15 can be pulled to adjust its length and height according to user habits. The handle 15 moves the positioning nut 13 to the appropriate position via the threaded rod 26. The positioning nut 13 is then rotated back to tighten it, engaging with the corresponding positioning slot 16. The positioning slot 16 positions the handle 15 via the threaded rod 26. Afterward, the positioning bolt 24 can be rotated to disengage it from the threaded hole 7 and removed. Then, the rotating wheel 8 and the external trenching cutter 9 can be removed. A suitable rotating wheel can then be replaced as needed. The rotating wheel 8 and the trenching cutter 9 are connected by mounting sleeve 25 inside the rotating wheel 8 and connecting shaft 6. Finally, positioning bolt 24 is inserted into threaded hole 7 and tightened. The rotating wheel 8 and trenching cutter 9 can be positioned by mounting sleeve 25. When trenching, the hydraulic cylinder 20 at the top of the fixed plate 18 is activated to push the lifting frame 17 down. The lifting frame 17 drives the rotating wheel 8 and trenching cutter 9 at one end to fall down. Then the drive box 22 is activated to drive the rotating wheel 8 to rotate for trenching. After trenching is completed, the hydraulic cylinder 20 is activated to drive the lifting frame 17 to rise. After the lifting frame 17 drives the rotating wheel 8 and trenching cutter 9 to rise, it is convenient to move the device. The support sleeve 5 located on one side of the bottom of the fixed frame 2 can cooperate with the moving wheel 10 to support the device.

Claims

1. A furrower with easy change of the cutting blade, comprising a fixed cover (1), characterized in that: The bottom end of the fixed cover (1) is fixedly connected to a fixed frame (2), and the two ends of the bottom right side of the fixed frame (2) are fixedly connected to mounting plates (11). One end of the mounting plate (11) is movably connected to a driving wheel (10). The inside of the fixed cover (1) is provided with a lifting frame (17), and the bottom end of the lifting frame (17) is provided with a disassembly and assembly structure for quickly replacing the trenching rotary cutter. The disassembly and assembly structure includes an installation plate (23). The front end of the lifting frame (17) is movably connected to the installation plate (23). The rear end of the lifting frame (17) is fixedly connected to a drive box (22). The front end of the installation plate (23) is movably connected to a rotating wheel (8). The front end of the installation plate (23) is fixedly connected to a connecting shaft (6). The front end of the rotating wheel (8) is fixedly connected to an installation sleeve (25). The front end of the connecting shaft (6) has a threaded hole (7). The outside of the rotating wheel (8) is fixedly connected to a grooving cutter (9). The front end of the installation sleeve (25) is movably connected to a positioning bolt (24).

2. The easy-to-change gang of furrow openers according to claim 1, characterized in that: The positioning bolt (24) is threadedly connected to the threaded hole (7), and the grooving cutters (9) on the outside of the rotating wheel (8) are arranged at equal intervals.

3. The easy-to-change gang of furrow openers according to claim 1, characterized in that: The output end of the drive box (22) is fixedly connected to the mounting plate (23) through the lifting frame (17), and the mounting sleeve (25) is movably connected to the connecting shaft (6).

4. The easy-to-change gang of furrow openers according to claim 1, characterized in that: The fixed cover (1) is fixedly connected to a fixed plate (18) inside. A hydraulic cylinder (20) is fixedly connected to the top of the fixed plate (18). Limiting posts (19) are fixedly connected to both sides of the top of the lifting frame (17). Limiting sleeves (21) are fixedly connected to both sides of the top of the fixed plate (18). Fixed posts (4) are fixedly connected to both ends of the bottom left side of the fixed frame (2). A support sleeve (5) is movably connected to the outside of the fixed post (4). A buffer spring (3) is fixedly connected to the top of the support sleeve (5).

5. The easy-to-change gang of furrow openers according to claim 4, characterized in that: The limiting sleeve (21) is slidably connected to the limiting post (19), and the output end of the hydraulic cylinder (20) is fixedly connected to the lifting frame (17) through the fixing plate (18).

6. The easy-to-change gang of furrow openers according to claim 1, characterized in that: Fixed sleeves (12) are fixedly connected to both ends of the top right side of the fixed frame (2). A handrail (15) is movably connected inside the fixed sleeve (12). A threaded rod (26) is fixedly connected to one end of the handrail (15). A sliding groove (14) is opened at one end of the fixed sleeve (12). A positioning slot (16) is opened at one end of the fixed sleeve (12). The threaded rod (26) passes through the sliding groove (14) and is movably connected to the positioning nut (13).

7. The easy-to-change gang of furrow openers according to claim 6, characterized in that: The positioning nut (13) is movably connected to the positioning slot (16), and the threaded rod (26) is slidably connected to the slide groove (14).

8. The easy-to-change gang of furrow openers according to claim 6, characterized in that: The sliding groove (14) is connected to the interior of the fixed sleeve (12), and the positioning slots (16) opened at one end of the fixed sleeve (12) are arranged at equal intervals.

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