An efficient cutting method and its device for active anti-winding of film-stalk complex
By employing a dual-shaft forward and reverse gearbox and staggered rotary cutting rollers in the rotary tillage cutting device, multiple cuts of the film-stalk composite are achieved, solving the problem of stalk and film entanglement and improving the operating efficiency and quality of the rotary tiller.
Patent Information
- Application Number
- CN202311042053.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-18
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2043-08-18
AI Technical Summary
In conservation tillage, stalks and residual mulch film can easily become entangled in the rotary tiller rollers, leading to increased rotary tillage resistance and reduced work quality, thus limiting the performance improvement of rotary tillers.
Design an efficient cutting device with active anti-entanglement, using a dual-shaft forward and reverse gearbox to make the rotary tillage gear and the cutting gear rotate in opposite directions, and the rotary tillage roller and the cutting roller are staggered, so as to achieve multiple cuts through rebound inertia and prevent entanglement.
It effectively prevents stems and plastic film from tangling, reduces rotary tillage resistance, improves work quality and efficiency, and reduces energy consumption.
Smart Images

Figure CN116982428B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a high-efficiency cutting rotary tillage device, and more particularly to a high-efficiency cutting method and device for active anti-entanglement of film-stalk composites. Background Technology
[0002] When implementing conservation tillage, a large amount of stalks and residual plastic film remain in the field. Under these operating conditions, the stalks and plastic film are very prone to entanglement with the rotary tiller rollers. This not only increases rotary tillage resistance but also leads to soil compaction, reduced work quality, and a significant increase in energy consumption during rotary tillage. The entanglement of the film-stalk composite with the rotary tiller rollers and the resulting increased rotary tillage resistance have become important factors limiting the improvement of rotary tiller performance.
[0003] To overcome the above shortcomings, a highly efficient cutting method and apparatus for active anti-entanglement of membrane-stalk composites are provided. Summary of the Invention
[0004] In view of this, the present invention proposes a highly efficient cutting method and apparatus for active anti-entanglement of membrane-stem composites, aiming to solve the above-mentioned technical problems. It can effectively solve the problem of membrane-stem composites entangled with the cutting roller.
[0005] To achieve the above objectives, this invention provides a high-efficiency cutting device for active anti-entanglement of film-stalk composites, comprising a rotary tiller roller, a cutting roller, a frame, and a dual-axis forward and reverse gearbox. The dual-axis forward and reverse gearbox includes a rotary tiller gear and a cutting gear. The dual-axis forward and reverse gearbox causes the rotary tiller gear and the cutting gear to rotate in opposite directions; the rotary tiller rotates clockwise, and the cutting gear rotates counterclockwise. The dual-axis forward and reverse gearbox is fixedly mounted on the frame.
[0006] The rotary tiller roller is located at the front end of the frame, and the cutting roller is located at the rear end of the frame. The two are staggered vertically, with the rotary tiller roller in front of the cutting roller in the horizontal direction and the cutting roller above the rotary tiller roller in the vertical direction.
[0007] This invention also provides an efficient cutting method for active anti-entanglement of membrane-stalk composites, comprising the following steps:
[0008] 1. The dual-shaft forward and reverse gearbox makes the rotary tiller and the cutting gear rotate in opposite directions, setting the rotary tiller to rotate forward and the cutting gear to rotate in reverse.
[0009] Furthermore, to ensure that the rotary tiller roller and the cutting roller do not interfere with each other during operation, the rotation radius of the rotary tiller roller is set to ra, where 195 mm > ra < 225 mm; the rotation radius of the cutting roller is set to rb, where 185 mm > rb < 200 mm.
[0010] The working distance between the rotary tiller blade and the cutting blade is set as rs; the farthest distance that the film-stalk is thrown up by the rotary tiller blade is ls.
[0011] In the horizontal direction, the working distance △ between the rotary tiller roller and the cutting roller l It is calculated using the following formula:
[0012]
[0013] Therefore, the horizontal working distance △ between the rotary tiller roller and the cutting roller l It is 450~700 mm.
[0014] In the vertical direction, the vertical working distance △H between the rotary tiller roller and the cutting roller is 30~180 mm.
[0015] Second, the power output of the rotary tillage roller and the cutting roller is controlled by the rotary tillage gear and the cutting roller, respectively. The rotary tillage roller is set to perform reverse deep rotary tillage of the soil layer with a depth of 15-20 cm; the cutting roller is set to perform forward cutting of the soil layer with a depth of 5-10 cm, and rotates forward to meet the membrane-stalk composite material thrown up by the rotary tillage roller.
[0016] III. Finally, efficient cutting operation steps:
[0017] a. The rotary tillage roller reverses direction, throws up the film-stem composite, performs the first cut on the film-stem, and then throws the film-stem composite back to the cutting roller.
[0018] b. The cutting roller rotates forward, facing the thrown membrane-stem composite, and performs a secondary cut on it.
[0019] c. The membrane-stalk composite rebounds under stress, bounces from the cutting roller to the rotary tiller roller, and is then cut again by the rotary tiller roller.
[0020] d. The film-stalk composite is repeatedly cut by inertial rebound between the rotary tiller roller and the cutting roller, achieving active anti-entanglement and efficient cutting operation. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention.
[0022] Figure 2 This is a side view of the overall structure of the present invention.
[0023] Figure 3 This is a partial schematic diagram of the operation process of the rotary tiller roller and cutting roller of the present invention.
[0024] Figure 4 This is a partial structural diagram of the dual-shaft forward and reverse gearbox of the present invention.
[0025] In the diagram: 1. Rotary tillage roller; 2. Cutting roller; 3. Frame; 4. Dual-shaft forward and reverse gearbox; 41. Rotary tillage gear; 42. Cutting gear; 15. Rotary tillage blade; 26. Cutting blade. Detailed Implementation
[0026] This invention primarily addresses the problem of residual stems and plastic film left in the field during conservation tillage, which easily become entangled in the cutting rollers under these conditions, making effective cutting difficult. The basic design concept utilizes a rebound-type cutting mechanism. During the operation of the rotary tillage cutting device, the front-end rotary roller rotates in reverse, lifting the film-stem composite as it completes the first cut. This composite is then thrown to the rear-end cutting roller, which meets the thrown composite for a second cut. Simultaneously, the composite, after being subjected to force, rebounds, repeatedly cutting between the rotary tillage and cutting rollers, further fragmenting the film and achieving active anti-entanglement and efficient cutting.
[0027] like Figures 1 to 4 As shown, a high-efficiency cutting device for active anti-entanglement of film-stalk composites comprises a rotary tiller roller, a cutting roller, a frame, and a dual-shaft forward and reverse gearbox. The dual-shaft forward and reverse gearbox includes a rotary tiller gear and a cutting gear. The dual-shaft forward and reverse gearbox ensures that the rotary tiller gear and the cutting gear rotate in opposite directions, with the rotary tiller gear rotating clockwise and the cutting gear rotating counterclockwise. The dual-shaft forward and reverse gearbox is fixedly mounted on the frame.
[0028] The rotary tiller roller is located at the front end of the frame, and the cutting roller is located at the rear end of the frame. The two are staggered vertically, with the rotary tiller roller in front of the cutting roller in the horizontal direction and the cutting roller above the rotary tiller roller in the vertical direction.
[0029] in, Figure 3 This is a partial schematic diagram of the operation process of the rotary tillage cutter roller and the cutting cutter roller. The specific operation process is as follows: During the operation of the rotary tillage and cutting device, the rotary tillage cutter roller at the front end rotates in the opposite direction. While completing the first cut, it picks up the film-stalk composite and throws it to the cutting cutter roller at the rear end. The cutting cutter roller meets the thrown film-stalk composite and completes the second cut. At the same time, after being subjected to force, the film-stalk composite will rebound between the rotary tillage cutter roller and the cutting cutter roller, and repeat the cutting by means of the rebound inertia.
[0030] An efficient cutting method for active anti-entanglement of membrane-stalk composites includes the following steps:
[0031] 1. The dual-shaft forward and reverse gearbox makes the rotary tiller and the cutting gear rotate in opposite directions, setting the rotary tiller to rotate forward and the cutting gear to rotate in reverse.
[0032] Preferably, to ensure that the rotary tiller roller and the cutting roller do not interfere with each other during operation, the rotation radius of the rotary tiller roller is set to ra, where 195 mm > ra < 225 mm; the rotation radius of the cutting roller is set to rb, where 185 mm > rb < 200 mm.
[0033] Preferably, the working distance between the rotary tiller blades and the cutting blades is set to rs; the farthest distance the film-stalk is thrown up by the rotary tiller blades is ls. In the horizontal direction, the working distance Δ between the rotary tiller roller and the cutting roller is... l It is calculated using the following formula:
[0034]
[0035] Therefore, the horizontal working distance △ between the rotary tiller roller and the cutting roller l The diameter is 450~700 mm;
[0036] In the vertical direction, the vertical working distance △H between the rotary tiller roller and the cutting roller is 30~180 mm.
[0037] Second, the power output of the rotary tillage roller and the cutting roller is controlled by the rotary tillage gear and the cutting roller, respectively. The rotary tillage roller is set to perform reverse deep rotary tillage of the soil layer with a depth of 15-20 cm; the cutting roller is set to perform forward cutting of the soil layer with a depth of 5-10 cm, and rotates forward to meet the membrane-stalk composite material thrown up by the rotary tillage roller.
[0038] III. Finally, efficient cutting operation steps:
[0039] a. The rotary tillage roller reverses its direction, throws up the film-stem composite, performs the first cut on the film-stem, and then throws the film-stem composite back to the cutting roller;
[0040] b. The cutting roller rotates forward, facing the thrown membrane-stem composite, and performs a secondary cut on it;
[0041] c. The membrane-stalk composite rebounds under stress, rebounding from the cutting roller to the rotary tiller roller, where it is cut again.
[0042] d. The film-stalk composite is repeatedly cut by inertial rebound between the rotary tiller roller and the cutting roller, achieving active anti-entanglement and efficient cutting operation.
Claims
1. A high-efficiency cutting device for active anti-entanglement of membrane-stalk composites, characterized in that: It consists of a rotary tiller roller (1), a cutting roller (2), a frame (3), and a dual-shaft forward and reverse gearbox (4); The dual-shaft forward and reverse gearbox (4) includes a rotary tillage gear (41) and a cutting gear (42). The dual-shaft forward and reverse gearbox (4) makes the rotary tillage gear (41) and the cutting gear (42) rotate in opposite directions. The rotary tillage gear (41) is set to rotate in the forward direction and the cutting gear (42) rotates in the reverse direction. The dual-shaft forward and reverse gearbox (4) is fixedly mounted on the frame (3). The rotary tillage roller (1) is located at the front end of the frame (3), and the cutting roller (2) is located at the rear end of the frame (3). The two are staggered vertically. In the horizontal direction, the rotary tillage roller (1) is in front of the cutting roller (2), and in the vertical direction, the cutting roller (2) is above the rotary tillage roller (1). The efficient cutting method of the efficient cutting device for active anti-entanglement of membrane-stalk composites comprises the following steps:
1. The dual-shaft forward and reverse gearbox (4) makes the rotary tillage gear (41) and the cutting gear (42) rotate in opposite directions. The rotary tillage gear (41) is set to rotate forward and the cutting gear (42) to rotate in reverse. In order to ensure that the rotary tillage roller (1) and the cutting roller (2) do not interfere with each other during operation, the rotation radius of the rotary tillage roller (1) is set to ra, where 195mm < ra < 225mm; the rotation radius of the cutting roller (2) is rb, where 185mm < rb < 200mm. The working distance between the rotary tiller blade (15) and the cutting blade (26) is set as rs; the farthest distance the film-stalk composite is thrown up by the rotary tiller blade (15) is ls; in the horizontal direction, the working distance Δl between the rotary tiller roller (1) and the cutting roller (2) is calculated by the following formula: △l≤ra+rb+rs Δl-ra-rb≤ls; Therefore, the horizontal working distance Δl between the rotary tiller roller (1) and the cutting roller (2) is 450-700 mm; In the vertical direction, the vertical working distance ΔH between the rotary tiller roller (1) and the cutting roller (2) is 30-180 mm; 2. The rotary tillage gear (41) and the cutting gear (42) are used to control the power output of the rotary tillage roller (1) and the cutting roller (2) respectively; the rotary tillage roller (1) is set to perform reverse deep rotary tillage of soil layer with a depth of 15-20cm; the cutting roller (2) is set to perform forward cutting of soil layer with a depth of 5-10cm, and the forward rotation is directed towards the membrane-stem composite thrown up by the rotary tillage roller (1); III. Efficient Cutting Operation Steps: a. The rotary tillage roller (1) reverses direction, throws up the film-stem composite, performs the first cut on the film-stem, and then throws the film-stem composite to the cutting roller (2); b. The cutting roller (2) rotates forward and faces the thrown membrane-stem composite, and performs a secondary cut on it; c. The membrane-stalk composite rebounds under force and bounces from the cutting roller (2) to the rotary tillage roller (1), where it is cut again. d. The film-stalk composite is repeatedly cut by inertial rebound between the rotary tiller roller (1) and the cutting roller (2), achieving active anti-entanglement and efficient cutting operation.
Citation Information
Patent Citations
Two-axle rotary tiller apparatus
JP2015165787A