Grass cutting device for rotary cultivator
By designing the grass breaking device for rotary tillers, the problem of grass stem accumulation and blockage is solved by using fan sets and telescopic discharge structure, effective segmentation and direction control of grass stems is achieved, and the normal operation of the rotary tillers is ensured.
Patent Information
- Application Number
- CN202422482938.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-15
AI Technical Summary
After the grass breaking device of the existing rotary tiller breaks the grass stems, the grass stems accumulate in the rotary tillage structure, causing blockage, affecting normal work.
A grass breaking device for rotary tillers is designed, including a device box, a fan group, a telescopic discharge structure and a multi-axis power box. The grass stems are driven through the fan group to segment and spray out, and the grass stems are changed using the telescopic discharge structure, and the grass stems are sprayed through gears and tooth plates.
Effectively prevent grass stems from accumulating in the rotary tillage structure, maintain the normal operation of the rotary tillage machine, and avoid blockage problems.
Smart Images
Figure CN223168718U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rotary tillers, in particular to a grass-breaking device for a rotary tiller. Background Art
[0002] A rotary tiller is a tillage machine that is matched with a tractor to complete tillage and harrowing operations. Because of its strong soil-breaking ability and flat surface after tillage, it has been widely used; at the same time, it can cut the stubble buried below the ground surface, which is convenient for the seeder to operate and provides a good seedbed for later sowing.
[0003] When the rotary tiller is performing tillage and harrowing operations, the weeds in the farmland will block the rotary tiller and affect its normal operation. In the prior art, in order to prevent the weeds from blocking the rotary tiller, a grass-breaking device is generally installed at the head position to break the grass stems in advance. However, the broken grass stems will be directly discharged to the tillage position, so that the broken grass stems will continuously accumulate inside the tillage structure during tillage. After the accumulation amount is large, it will still cause blockage. Therefore, a grass-breaking device for a rotary tiller is proposed. Content of the Utility Model
[0004] In view of the above problems that in order to prevent the weeds from blocking the rotary tiller, a grass-breaking device is generally installed at the head position to break the grass stems in advance. However, the broken grass stems will be directly discharged to the tillage position, so that the broken grass stems will continuously accumulate inside the tillage structure during tillage. After the accumulation amount is large, it will still cause blockage, the present utility model is proposed.
[0005] To solve the above technical problems, the present utility model provides the following technical solutions: A grass-breaking device for a rotary tiller, which includes a head. A device box is arranged on one side of the head. A lower part of the side of the device box away from the head is provided with a plug rod frame. The plug rod frame is composed of multiple rod-shaped structures. Above the plug rod frame, there are multiple grass-breaking wheel frames. The upper ends of the grass-breaking wheel frames rotate through the inner top wall of the device box. A power telescopic rod A is fixed on the side of the device box close to the head, and the upper end of the power telescopic rod A is fixed to the head. A cylinder box communicating with the inside of the device box is fixed on the upper surface of the device box. A fan group is installed inside the cylinder box. A telescopic discharge structure is rotatably sleeved on the upper end of the cylinder box.
[0006] Preferably, a multi-axis power box is fixed on the upper surface of the device box, and the upper ends of the grass-breaking wheel frames are fixed to the output ends of the multi-axis power box.
[0007] Preferably, the telescopic discharge structure includes a bent pipe, an extension pipe and a power telescopic rod B. The two ends of the power telescopic rod B are respectively fixed to the bent pipe and the extension pipe. One end of the bent pipe is rotatably sleeved on the upper end of the cylinder box, and the other end of the bent pipe is slidably inserted into the inside of the extension pipe.
[0008] Preferably, the bent pipe is bent at a right angle, and the lower end of the bent pipe is coaxial with the upper end of the cylinder box.
[0009] Preferably, a gear is fixedly sleeved on the lower end of the elbow pipe. One side of the gear meshes with a rack. On the other side surface of the rack, a power telescopic rod C is installed. The other end of the power telescopic rod C is fixed to the upper surface of the device box.
[0010] Preferably, a notch ring is arranged above the gear. The bottom surface of the notch ring is fixed to the upper surface of the device box. Two concave structures symmetrical about the axis of the gear are arranged on the inner ring of the notch ring. A pressure telescopic rod is fixedly installed on the outer ring surface of the lower end of the elbow pipe. The other end of the pressure telescopic rod is located in one of the concave structures of the notch ring.
[0011] Preferably, a partition board is fixedly installed inside the device box. The lower end of the partition board is arc-shaped. There is a gap between the lower end of the partition board and the inner bottom wall of the device box. A long shaft is arranged inside the arc-shaped structure of the partition board. Both ends of the long shaft rotatably penetrate through the inner wall of the device box. A plurality of auxiliary material pushing plates are installed at one end of the long shaft located inside the device box. The partition board is located between the grass cutting wheel frame and the cylinder box. A motor is fixed to the outer surface of the device box. One end of the long shaft is fixed to the output end of the motor.
[0012] Preferably, the number of teeth of the rack is greater than one-fourth and less than half of the number of teeth of the gear.
[0013] Advantages of the utility model:
[0014] 1. By arranging the telescopic discharging structure, the fan group and the cylinder box, after the grass stems are divided into multiple segments by the grass cutting wheel, the fan group rotates to drive the air flow to flow upward. The flowing air flow drives the segmented grass stems into the telescopic discharging structure, and then sprays out from the other end of the telescopic discharging structure. The sprayed grass stems are located on one side of the rotary tillage path, preventing the rotary tillage structure from being affected again.
[0015] 2. By arranging the notch ring, the gear, the rack and the pressure telescopic rod, when the rack moves, it drives the elbow pipe to rotate relative to the cylinder box by meshing with the gear, and drives the pressure telescopic rod to slide on the inner ring surface of the notch ring. After the gear and the rack are disengaged, the pressure telescopic rod moves from one concave structure of the notch ring to the other concave structure inside the notch ring, ensuring that the elbow pipe rotates half a circle each time, which can control the orientation of the extension pipe and change the direction of the sprayed grass stems. Description of the drawings
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:
[0017] Figure 1Structural schematic diagram of the present utility model;
[0018] Figure 2 Schematic diagram of the connection between the bent pipe and the extension pipe of the present utility model;
[0019] Figure 3 Top view structural schematic diagram of the present utility model;
[0020] Figure 4 Internal structural schematic diagram of the device box of the present utility model;
[0021] Figure 5 Schematic diagram of the connection between the long shaft and the auxiliary material pushing plate of the present utility model;
[0022] Figure 6 Front view structural schematic diagram of a part of the present utility model.
[0023] Explanation of reference numerals:
[0024] 1. Machine head; 2. Device box; 3. Weed cutting wheel frame; 4. Plug rod frame; 5. Power telescopic rod A; 6. Cylinder box; 7. Fan group; 8. Telescopic discharge structure; 81. Bent pipe; 82. Extension pipe; 83. Power telescopic rod B; 9. Multi-axis power box; 10. Gear; 11. Rack; 12. Power telescopic rod C; 13. Notch ring; 14. Pressure telescopic rod; 15. Motor; 16. Partition board; 17. Long shaft; 18. Auxiliary material pushing plate. Detailed implementation manners
[0025] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific implementation manners of the present utility model will be given with reference to the accompanying drawings of the specification.
[0026] Refer to Figure 1-6, which is an embodiment of the present utility model, provides a weed cutting device for a rotary tiller. This weed cutting device for a rotary tiller includes a machine head 1. On one side of the machine head 1, there is a device box 2. At the lower part of the side of the device box 2 away from the machine head 1, there is an insertion rod rack 4. The insertion rod rack 4 is composed of multiple rod-shaped structures. Above the insertion rod rack 4, there are multiple weed cutting wheel racks 3. On the upper surface of the device box 2, a multi-axis power box 9 is fixed. The upper end of the weed cutting wheel rack 3 is fixed to the output end of the multi-axis power box 9. The multi-axis power box 9 outputs power to multiple weed cutting wheel racks 3 simultaneously. The upper end of the weed cutting wheel rack 3 rotates through the inner top wall of the device box 2. Inside the device box 2, there is a partition 16 fixedly installed. The lower end of the partition 16 is arc-shaped. There is a gap between the lower end of the partition 16 and the inner bottom wall of the device box 2. Inside the arc-shaped structure of the partition 16, there is a long shaft 17. The two ends of the long shaft 17 rotate through the inner wall of the device box 2. At one end of the long shaft 17 located inside the device box 2, there are multiple auxiliary material pushing plates 18 installed. The partition 16 is located between the weed cutting wheel rack 3 and the barrel box 6. On the outer surface of the device box 2, there is a motor 15 fixed. One end of the long shaft 17 is fixed to the output end of the motor 15. When the motor 15 drives the auxiliary material pushing plates 18 to rotate, it can assist in pushing the cut grass stems into the other side of the partition 16.
[0027] On the side of the device box 2 close to the machine head 1, there is a power telescopic rod A 5 fixed. The upper end of the power telescopic rod A 5 is fixed to the machine head 1. By telescoping, the power telescopic rod A 5 can change the height of the device box 2. On the upper surface of the device box 2, there is a barrel box 6 fixedly installed and communicating with its interior. Inside the barrel box 6, there is a fan group 7 installed. By rotating, the fan group 7 can drive the air flow to flow upward. At the upper end of the barrel box 6, there is a telescopic discharge structure 8 rotatably sleeved.
[0028] The telescopic discharge structure 8 includes an elbow pipe 81, an extension pipe 82, and a power telescopic rod B 83. The two ends of the power telescopic rod B 83 are respectively fixed to the elbow pipe 81 and the extension pipe 82. The elbow pipe 81 is bent at a right angle. The lower end of the elbow pipe 81 is coaxial with the upper end of the barrel box 6. One end of the elbow pipe 81 is rotatably sleeved at the upper end of the barrel box 6. The other end of the elbow pipe 81 is slidably inserted into the interior of the extension pipe 82. By telescoping, the power telescopic rod B 83 can change the length of the extension pipe 82 extending out of the elbow pipe 81.
[0029] At the lower end of the elbow pipe 81, there is a gear 10 fixedly sleeved. On one side of the gear 10, there is a rack 11 meshed. On the other side of the rack 11, there is a power telescopic rod C 12 installed. The other end of the power telescopic rod C 12 is fixed to the upper surface of the device box 2. The number of teeth of the rack 11 is greater than one-fourth and less than half of the number of teeth of the gear 10. When the rack 11 moves back and forth, by meshing with the gear 10, it can drive the elbow pipe 81 to rotate.
[0030] A notch ring 13 is provided above the gear 10, and the bottom surface of the notch ring 13 is fixed to the upper surface of the device box 2. The inner ring of the notch ring 13 is provided with two recessed structures symmetrical with the axis of the gear 10. A pressure telescopic rod 14 is fixed to the outer ring surface of the lower end of the bent pipe 81, and the other end of the pressure telescopic rod 14 is located in one of the recessed structures of the notch ring 13. Each time the tooth plate 11 disengages from the gear 10, the pressure telescopic rod 14 moves from one recessed structure of the notch ring 13 to another recessed structure, so that the bent pipe 81 stops rotating and rotates half a circle each time, which can change the direction of the extension tube 82.
[0031] During use, the leaning degree of the device box 2 is controlled by the power telescopic rod A5 to control the length of the cut grass stems. When the rotary tiller drives the device box 2 to move, the grass stems gradually move between the insertion rod racks 4, and then the grass cutting wheel rack 3 rotates to cut the grass stems into multiple segments. The rotation of the fan group 7 drives the air flow to flow upward, and the motor 15 drives the auxiliary material-diverting plate 18 to rotate through the long shaft 17. The flowing airflow drives the segmented grass stems into the curved pipe 81 under the auxiliary diversion of the auxiliary material-diverting plate 18, and then the segmented grass stems are ejected from the extension pipe 82. The power telescopic rod B83 can control the length of the extension pipe 82 extending out of the curved pipe 81 by telescoping.
[0032] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.
Claims
1. A weed-breaking device for a rotary tiller, comprising a machine head (1), characterized in that: On one side of the machine head (1), there is a device box (2). On the lower part of the side of the device box (2) away from the machine head (1), there is an inserting rod rack (4). The inserting rod rack (4) is composed of multiple rod-shaped structures. Above the inserting rod rack (4), there are multiple grass-breaking wheel racks (3). The upper ends of the grass-breaking wheel racks (3) rotate through the inner top wall of the device box (2). On the side of the device box (2) close to the machine head (1), there is a power telescopic rod A (5) fixed. The upper end of the power telescopic rod A (5) is fixed to the machine head (1). On the upper surface of the device box (2), there is a cylinder box (6) fixed and communicating with its interior. Inside the cylinder box (6), there is a fan group (7) installed. The upper end of the cylinder box (6) is rotatably sleeved with a telescopic discharging structure (8).
2. The weed cutting device for a rotary tiller according to claim 1, characterized in that: On the upper surface of the device box (2), there is a multi-axis power box (9) fixed. The upper end of the grass-breaking wheel rack (3) is fixed to the output end of the multi-axis power box (9).
3. The stubble-breaking device for a rotary tiller according to claim 1, characterized in that: The telescopic discharging structure (8) includes an elbow pipe (81), an extension pipe (82), and a power telescopic rod B (83). The two ends of the power telescopic rod B (83) are respectively fixed to the elbow pipe (81) and the extension pipe (82). One end of the elbow pipe (81) is rotatably sleeved on the upper end of the cylinder box (6), and the other end of the elbow pipe (81) is slidably inserted into the interior of the extension pipe (82).
4. The grass-breaking device for a rotary tiller according to claim 3, characterized in that: The elbow pipe (81) is bent at a right angle, and the lower end of the elbow pipe (81) is coaxial with the upper end of the cylinder box (6).
5. The stubble cutting device for a rotary tiller according to claim 3, characterized in that: At the lower end of the elbow pipe (81), there is a gear (10) fixedly sleeved. On one side of the gear (10), there is a rack (11) meshed. On the other side of the rack (11), there is a power telescopic rod C (12) installed. The other end of the power telescopic rod C (12) is fixed to the upper surface of the device box (2).
6. The grass-breaking device for a rotary tiller according to claim 5, wherein: Above the gear (10), there is a notched ring (13). The bottom surface of the notched ring (13) is fixed to the upper surface of the device box (2). Inside the inner ring of the notched ring (13), there are two concave structures symmetric about the axis of the gear (10). On the outer ring surface of the lower end of the elbow pipe (81), there is a pressure telescopic rod (14) fixed. The other end of the pressure telescopic rod (14) is located in one of the concave structures of the notched ring (13).
7. A weed-breaking device for a rotary tiller according to claim 1, characterized in that: Inside the device box (2), there is a partition plate (16) fixedly installed. The lower end of the partition plate (16) is arc-shaped. There is a gap between the lower end of the partition plate (16) and the inner bottom wall of the device box (2). Inside the arc-shaped structure of the partition plate (16), there is a long shaft (17). The two ends of the long shaft (17) rotate through the inner wall of the device box (2). At one end of the long shaft (17) located inside the device box (2), there are multiple auxiliary feeding plates (18) installed. The partition plate (16) is located between the grass-breaking wheel rack (3) and the cylinder box (6). On the outer surface of the device box (2), there is a motor (15) fixed. One end of the long shaft (17) is fixed to the output end of the motor (15).
8. The grass-breaking device for a rotary tiller according to claim 6, characterized in that: The number of teeth of the rack (11) is greater than one-fourth of the number of teeth of the gear (10) and less than half of the number of teeth of the gear (10).