Intertillage hilling grass grate device
By designing a soil-cultivating and weed-removing device, which utilizes a combination of a scraper and a weed-removing rod, the problems of complex structure and insufficient weed removal of existing equipment are solved. This enables simple and efficient soil cultivation and weed removal on tobacco ridges, meeting the needs of tobacco plant root growth.
Patent Information
- Application Number
- CN202511696868.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-19
- Publication Date
- 2026-01-27
AI Technical Summary
Existing tobacco ridging and hilling equipment has a complex structure and large size, making it difficult to adapt to environments with narrow row spacing. It also neglects weed control, resulting in vigorous weed growth that steals nutrients.
A tillage, hilling, and weeding device was designed, including a frame, transmission plate, sprocket transmission mechanism, scraper blade, and weeding nails. The scraper blade loosens the soil and the weeding nails clear weeds by driving the actuating rod through the chain. The device has a simple structure, occupies the space on the side of the tobacco ridge, and operates close to the side of the tobacco ridge.
It enables simple hilling and weeding operations, meets the root growth needs of tobacco plants, improves work efficiency, prevents weed growth, and saves resources.
Smart Images

Figure CN121400154A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the technical field of field tobacco planting equipment, and particularly relates to a tillage, hilling, and straw-grooming device. Background Technology
[0002] Tobacco cultivation differs from other crops. Due to the larger size of the plants and the use of ridge planting technology, inter-row cultivation and hilling are necessary to ensure sufficient root growth and development. This involves mounding soil around the tobacco ridges. While the height and width of the ridges before transplanting meet industry standards and plant growth requirements, external disturbances such as rainfall, irrigation, and fertilization during the growing season can cause soil loss and reduce ridge height. Therefore, inter-row cultivation involves pushing the soil from the bottom sides of the ridges towards the top, increasing the ridge height and width to provide sufficient space for the tobacco roots to grow.
[0003] There are many existing tobacco ridge-building equipment, but their overall structure is complex and their size is large, making it difficult to adapt to environments with narrow ridge spacing. In addition, the operation mode of these equipment is mostly limited to ridge-building, neglecting the clearing of weeds on the ridge sides, which leads to vigorous growth of weeds in the later stages and their competition for nutrients with tobacco plants. Summary of the Invention
[0004] To address the shortcomings of existing technologies, the present invention aims to provide a tillage, hilling, and straw-grooming device. The invention has a simple structure, mainly occupies the space on the side of the tobacco ridge and operates close to the side of the tobacco ridge. The overall operation is simple and can realize the hilling operation of first loosening and pushing the soil with a scraper, and then the straw-grooming operation of grating the straw down the tobacco ridge with straw-grooming nails.
[0005] To achieve the above objectives, the present invention provides the following technical solution: A tillage, hilling, and straw stalking device includes a frame for connecting a traction device. The frame is detachably connected to two parallel transmission frame plates on the side facing the tobacco ridge to be worked. The transmission frame plates are arranged with their bottom walls close to the side of the tobacco ridge. Both of the opposite side walls of the two transmission frame plates are provided with a sprocket transmission mechanism. An actuating rod is vertically mounted on the transmission frame plate, and both ends of the actuating rod are fixedly connected to the corresponding chain links of the two sprocket mechanisms. The actuating lever is equipped with a soil scraper and a straw rack nail at each end of the vertical chain surface.
[0006] Preferably, the two sprocket drive mechanisms are arranged in parallel at the same height, and the corresponding sprockets are fixedly connected by shafts.
[0007] Preferably, the transmission frame plate facing away from the traction movement direction is equipped with a motor at its bottom end, and the output end of the motor is connected to the corresponding sprocket drive.
[0008] Preferably, the frame and the transmission frame plate are provided with assembly holes at the connection point. After the bolt passes through the assembly hole, it is assembled with the nut to complete the connection between the frame and the transmission frame plate.
[0009] Preferably, the actuating rod includes a square fixed rod that is fixedly connected to the scraper blade, and the two ends of the fixed rod are connected to corresponding chain links through round shafts; The actuating rod also includes a compensating plate integrally connected to the square fixed rod and used for installing straw rack nails.
[0010] Preferably, when the actuating rod is driven to the bottom surface of the chain, the actuating rod is in a state where the scraper blade points towards the tobacco ridge, the straw grates face away from the tobacco ridge and are close to the frame, and the top of the straw grates is flush with the top surface of the chain. When the actuator is driven to the top surface of the chain, the actuator is positioned such that the straw grate points towards the tobacco ridge, the scraper blade faces away from the tobacco ridge and is close to the frame.
[0011] Preferably, the scraper blade has a V-shaped bend corrugated plate structure.
[0012] Preferably, the straw comb nail includes a fixed cylinder fixedly connected to the actuating rod and a nail rod axially slidably disposed within the fixed cylinder.
[0013] Preferably, the inner wall of the fixed cylinder port is provided with a flange, and the end of the nail rod located inside the fixed cylinder is provided with a limiting block that is in clearance fit with the fixed cylinder.
[0014] The working process of this invention is as follows: First, connect the frame to the traction device, which can be a small rotary tiller or a wheelbarrow with a soil loosening function. The traction device moves within the furrow, thereby driving the transmission frame and corresponding components to move through the frame.
[0015] Next, the angle of the frame and transmission frame plate is adjusted, and then the positions of the frame and transmission frame plate are fixed by bolts and nuts, so that the bottom surface of the transmission frame plate can be close to the side of the tobacco ridge and the scraper can contact the side of the tobacco ridge for operation.
[0016] Finally, the soil-filling operation is carried out. When the transmission frame plate moves to a certain working surface, the movement is paused, the motor is turned on, and the motor output drives the sprocket, which in turn drives the chain of the two sprocket transmission mechanism to rotate through the shaft. The actuating rod is driven by the chain and completes a circular displacement. As the actuating lever moves from the bottom to the top of the transmission frame plate, the scraper pushes the soil at the bottom of the ridge upwards along the ridge side, loosening the soil on the ridge side and loosening the roots of weeds on the ridge side. After the actuating rod moves to the top of the transmission frame plate, it continues to move with the chain and achieves a 180-degree rotation, so that the grate nails face the side of the tobacco ridge. At the same time, under the action of gravity, the nail rod moves out of the fixed cylinder and inserts into the tobacco ridge. As the chain continues to move, the actuating rod moves from the top of the transmission frame plate to the bottom of the transmission frame plate, and the grate nails move from the top of the side of the tobacco ridge to the bottom, hanging the weeds between the ridges.
[0017] As the actuator rod moves to the bottom of the transmission frame plate, it continues to move along the chain and rotates 180 degrees, causing the scraper to face the side of the tobacco ridge and the straw grating nails to face away from the side of the tobacco ridge, thus completing the soil covering and straw grating operation on this work surface.
[0018] Because of the presence of the shaft between the sprockets, when the actuating rod moves to the sprocket, the long grass grates will interfere with the shaft. Therefore, this application has a compensation plate on the actuating rod to adjust the distance between the grass grates and the scraper, so that the grass grates do not contact the shaft during the circular rotation of the actuating rod, thus preventing the occurrence of position interference problems.
[0019] Compared with the prior art, the present invention has the following advantages: The present invention has a simple structure, mainly occupies the space on the side of the tobacco ridge and operates close to the side of the tobacco ridge. The overall operation is simple and can realize the soil-laying operation of first loosening the soil with a scraper and pushing the soil, and then the operation of grating the grass down the tobacco ridge with a grass grater. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of the tillage, hilling, and straw grating device described in the specific implementation method under the condition of the scraper plate operation. Figure 2 This is a schematic diagram of the structure of the tillage, hilling, and straw grating device described in the specific implementation method, in the straw grating nail operation state; Figure 3 for Figure 1 A schematic diagram of the structure of the actuator; Figure 4 for Figure 2 A schematic diagram of the structure of the actuator. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.
[0022] like Figure 1-4As shown, a tillage and hilling device includes a frame 1 for connecting a traction device. The frame 1 has two parallel transmission plates 2 on the side facing the tobacco ridge to be worked. The transmission plates 2 are arranged with their bottom walls close to the side of the tobacco ridge. The frame 1 and the transmission plates 2 are provided with assembly holes at the connection points. Bolts 21 pass through the assembly holes and are assembled with nuts to complete the connection between the frame 1 and the transmission plates 2.
[0023] Both transmission frame plates 2 are provided with sprocket transmission mechanisms on their opposite side walls. The two sprocket transmission mechanisms are set in parallel at the same height, and the corresponding sprockets 32 are fixedly connected by shafts 33. The transmission frame plate 2 facing away from the traction movement direction is provided with a motor 34 at its bottom end. The output end of the motor 34 is connected to the corresponding sprocket 32 in a transmission connection. An actuating rod 4 is vertically driven by a frame plate. The actuating rod 4 includes a square fixed rod, and both ends of the square fixed rod are fixedly connected to the corresponding links of the chain 31 through a round shaft 42. The actuating rod 4 also includes a compensation plate 41 integrally connected with the square fixed rod.
[0024] The square fixed rod has a scraper 43 on its end face perpendicular to the chain surface. Several grass grating nails are fixed on the compensation plate 43. The scraper 43 has a V-shaped bend and a corrugated plate structure. The grass grating nail includes a fixed cylinder 44 fixedly connected to the compensation plate 41 and a nail rod 45 axially slidably disposed in the fixed cylinder. The inner wall of the port of the fixed cylinder 44 is provided with a flange. The nail rod 45 is provided with a limiting block that is clearance-fitted with the fixed cylinder at one end inside the fixed cylinder. The scraper blade 43 and the straw comb nail are arranged parallel to each other and extend in opposite directions: like Figure 1 As shown, when the actuator 4 is driven to the bottom of the chain, the actuator is in a state where the scraper 43 points towards the tobacco ridge, the straw nail faces away from the tobacco ridge and is close to the frame, and the top of the straw nail is flush with the top surface of the chain 31. like Figure 2 As shown, when the actuator 4 is driven to the top surface of the chain 31, the actuator 4 is in a state where the straw rack points towards the tobacco ridge and the scraper 43 is facing away from the tobacco ridge and close to the frame.
[0025] The working process of this invention is as follows: First, connect the frame 1 to the traction device. The traction device can be a small rotary tiller or a small cart with soil loosening function. The traction device moves in the furrow and then drives the transmission frame plate and corresponding components to move through the frame.
[0026] Next, the angles of the frame 1 and the transmission frame 2 are adjusted, and then the positions of the frame and the transmission frame are fixed by bolts and nuts, so that the bottom surface of the transmission frame 2 can be close to the side of the tobacco ridge and the scraper 43 can contact the side of the tobacco ridge for operation.
[0027] Finally, the soil-building operation is carried out. When the transmission frame plate 2 moves to a certain working surface, the movement is paused, and the motor 34 is turned on. The output end of the motor 34 drives the sprocket 32 and drives the chain 31 of the two sprocket transmission mechanism to rotate through the shaft 33. The actuating rod 4 is driven by the chain 31 and completes a circular displacement. As the action lever 4 moves from the bottom of the transmission frame plate 2 to the top of the transmission frame plate 2, the scraper 43 pushes the soil at the bottom of the ridge upward along the ridge side, loosening the soil on the ridge side and loosening the roots of the weeds on the ridge side. After the actuating rod 4 moves to the top of the transmission frame plate 2, it continues to move with the chain 31 and achieves a 180-degree rotation, so that the grating nail faces the side of the tobacco ridge. At the same time, under the action of gravity, the nail rod 45 moves out of the fixed cylinder 44 and inserts into the tobacco ridge. As the chain 31 continues to move, the actuating rod 4 moves from the top of the transmission frame plate 2 to the bottom of the transmission frame plate 2, and the grating nail moves from the top of the side of the tobacco ridge to the bottom, and hangs the weeds between the ridges.
[0028] As the actuating lever 4 moves to the bottom of the transmission frame plate 2, it continues to move with the chain 31 and achieves a 180-degree rotation of the actuating lever, so that the scraper 43 faces the side of the tobacco ridge and the straw grating nail faces away from the side of the tobacco ridge, thus completing the soil covering and straw grating operation on this working surface.
[0029] Because of the presence of the shaft 33 between the sprockets, when the actuating rod 4 moves to the sprocket 32, the grating nails, due to their large length, will interfere with the shaft. Therefore, a compensation plate 41 is provided on the actuating rod of this application to adjust the distance between the grating nails and the scraper, so that the grating nails do not contact the shaft during the circular rotation of the actuating rod, thereby preventing the occurrence of position interference problems.
Claims
1. A tillage, hilling, and straw-grooming device, comprising a frame for connecting a traction device, characterized in that, The frame is detachably connected to two parallel transmission frame plates on the side facing the tobacco ridge to be worked. The transmission frame plates are positioned with their bottom walls close to the side of the tobacco ridge. Both transmission frame plates have sprocket transmission mechanisms on their opposite side walls. An actuating rod is vertically mounted on the transmission frame plate, and both ends of the actuating rod are fixedly connected to the corresponding chain links of the two sprocket mechanisms. The actuating lever is equipped with a soil scraper and a straw rack nail at each end of the vertical chain surface.
2. The tillage, hilling, and straw-grooming device as described in claim 1, characterized in that, The two sprocket drive mechanisms are set in parallel at the same height, and the corresponding sprockets are fixedly connected by shafts.
3. The tillage, hilling, and straw-grooming device as described in claim 1, characterized in that, A motor is installed at the bottom of the transmission frame plate facing away from the traction direction, and the output end of the motor is connected to the corresponding sprocket drive.
4. The tillage, hilling, and straw-grooming device as described in claim 1, characterized in that, The frame and transmission frame are both provided with assembly holes. Bolts pass through the assembly holes and are then assembled with nuts to complete the connection between the frame and transmission frame.
5. The tillage, hilling, and straw-grooming device as described in claim 1, characterized in that, The actuating rod includes a square fixed rod that is fixedly connected to the scraper blade, and the two ends of the fixed rod are connected to the corresponding chain links through round shafts; The actuating rod also includes a compensating plate integrally connected to the square fixed rod and used for installing straw rack nails.
6. The tillage, hilling, and straw-grooming device as described in claim 5, characterized in that, When the actuating lever is driven to the bottom of the chain, the actuating lever is in a state where the scraper blade points towards the tobacco ridge, the straw grates face away from the tobacco ridge and are close to the frame, and the top of the straw grates is flush with the top surface of the chain. When the actuator is driven to the top surface of the chain, the actuator is positioned such that the straw grate points towards the tobacco ridge, the scraper blade faces away from the tobacco ridge and is close to the frame.
7. The tillage, hilling, and straw-grooming device as described in claim 1, characterized in that, The scraper blade has a V-shaped, corrugated structure.
8. The tillage, hilling, and straw-grooming device as described in claim 1, characterized in that, The straw comb nail includes a fixed cylinder fixedly connected to the actuating rod and a nail rod axially slidably disposed within the fixed cylinder.
9. The tillage, hilling, and straw-grooming device as described in claim 1, characterized in that, The inner wall of the fixed cylinder port is provided with a flange, and the end of the nail rod located inside the fixed cylinder is provided with a limiting block that is in clearance fit with the fixed cylinder.
