A kind of inter-row straw cleaning device with follow-up speed increase, push, press and throw, suitable for no-till seeding unit

Abstract

A follow-up speed-increasing push, press, and throw integrated inter-row straw cleaning device suitable for no-till seeding units is mainly composed of a connecting frame, a straw pushing disc, a pressure and throwing disc, and a planetary gear transmission system. The straw pushing disc rotates around the center under the combined action of the device's own gravity and soil resistance, and the pressure and throwing disc is driven by the planetary gear transmission system to increase the speed of rotation. When the device moves forward at a fast speed, straw accumulates on the surface of the straw pushing disc. When the straw accumulates to the sweeping height of the pressure and throwing disc, the pressure and throwing teeth of the pressure and throwing disc press the accumulated straw and then throw it to the side and rear. The tooth profile curve of the pressure and throwing teeth is a combination curve of the Archimedean spiral and the Cartesian leaf line, which can realize the process of first pressing and then throwing the accumulated straw. The combined curve pressure and throwing teeth are straw sliding cutting and throwing rather than picking and throwing. On the one hand, it prevents the accumulated straw from crossing the straw pushing disc to cause blockage. At the same time, it ensures that the side-thrown straw has a low initial throwing velocity to avoid straw throwing to the adjacent sowing interval.

Description

Technical Field

[0001] The invention is a key component of a no-till seeding machine, belongs to the field of agricultural machinery, and mainly relates to a follow-up speed-increasing push, press, and throw integrated inter-row straw clearing device adapted to a no-till seeding unit. Background Art

[0002] At present, the existing inter-row straw cleaning device of the no-till planter is a passive inclined toothed disc, which mainly relies on lateral pushing to clean the straw between the sowing rows to both sides of the soil-contacting parts, laying the foundation for the soil-contacting parts to open trenches, follow the shape, and press down. However, due to the limitation of the principle of straw cleaning by the toothed disc of the inter-row straw cleaning device, when the no-till planter is operating at high speed, the lateral pushing of straw is easy to cause accumulation. On the one hand, the accumulated straw leads to a decrease in the efficiency of no-till sowing, and on the other hand, the residual straw is very likely to cause the soil-contacting parts to be blocked, thereby affecting the operation quality of the no-till planter. Summary of the invention

[0003] In view of the above problems, the present invention creates and designs a follow-up speed-increasing push, press, and throw integrated inter-row straw clearing device suitable for no-till seeding units. The follow-up speed-increasing push, press, and throw integrated inter-row straw clearing device suitable for no-till seeding units is mainly composed of a connecting frame, a straw pushing disc, a pressure and throwing disc, and a planetary gear transmission system. The planetary gear transmission system is composed of a gear ring, a sun gear, a planetary gear, and a retaining frame. The gear ring is fixed to the connecting frame, the straw pushing disc is fixed to the retaining frame, the pressure and throwing disc is fixed to the gear shaft of the sun gear, and the straw pushing disc and the pressure and throwing disc are coaxially hinged and rotated relative to each other. As the device moves forward, the straw pushing disc rotates around its center under the combined action of the entire device's own gravity and soil resistance, and the pressure and throwing disc is driven to rotate faster through the planetary gear transmission system. The straw pusher maintains a certain angle with the forward direction, and pushes the straw within its working width to one side. When the forward speed is fast, the straw will accumulate on the surface of the straw pusher. When the straw accumulates to the sweeping height of the pressure and throwing disc, the pressure and throwing teeth of the pressure and throwing disc will press the accumulated straw and then throw it to the side and rear. Since the pressure and throwing disc increases the speed through the planetary gear transmission system, the accumulated straw can be effectively and timely cleaned to prevent blockage. The tooth profile curve of the pressure and throwing teeth of the pressure and throwing disc is a combination curve of the Archimedean spiral and the Cartesian leaf line. The combined curve realizes the process of pressing the straw first and then throwing it, and the straw is thrown by sliding cutting instead of picking and throwing. On the one hand, it prevents the accumulated straw from crossing the straw pusher and causing blockage. At the same time, it ensures that the side-thrown straw has a lower initial throwing velocity to avoid the straw being thrown into the adjacent sowing area. This technology proposes a follow-up speed-increasing method and a push-press-throw integrated straw cleaning idea. Under the premise of high-speed operation without adding external power source, it realizes the directional and fixed-distance throwing and anti-blocking functions on the side and rear of the accumulated straw, laying the foundation for high-speed and high-quality operation of the no-till seeder. BRIEF DESCRIPTION OF THE DRAWINGS

[0004] Figure 1It is an axonometric diagram of an integrated inter-row straw cleaning device with follow-up speed increase, pushing, pressing and throwing, which is suitable for no-till seeding units.

[0005] Figure 2 It is a simplified axonometric diagram of the main working parts.

[0006] Figure 3 It is a simplified axonometric cutaway diagram of the main working parts.

[0007] Figure 4 It is a simplified diagram of the main view of the pressure selling plate

[0008] Figure 5 It is the main view of the straw tray

[0009] Description of part numbers in the figure:

[0010] 1. Connecting frame 2. Straw pushing plate 3. Pressure throwing plate 4. Planetary gear transmission system 5. Gear ring 6. Sun gear 7. Planetary gear 8. Cage 9. Gear shaft 10. Pressure throwing gear 11. Straw pushing gear DETAILED DESCRIPTION

[0011] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0012] A follow-up speed-increasing push, press and throw integrated inter-row straw cleaning device suitable for no-till seeding units is mainly composed of a connecting frame 1, a straw pushing disc 2, a pressure and throwing disc 3 and a planetary gear transmission system 4. The planetary gear transmission system 4 is composed of a gear ring 5, a sun gear 6, a planetary gear 7 and a retaining frame 8. The gear ring 5 is fixed to the connecting frame 1, the straw pushing disc 2 is fixed to the retaining frame 8, the pressure and throwing disc 3 is fixed to the gear shaft 9 of the sun gear 6, and the straw pushing disc 2 and the pressure and throwing disc 3 are coaxially hinged and rotate relative to each other. The device is hinged with the no-tillage sowing unit through a connecting frame, and is located below the parallel four-bar profiling mechanism and in front of the seed furrow opener. It moves forward with the no-tillage sowing unit and automatically aligns itself in the vertical direction by its own gravity. The diameter of the circumference of the straw-pushing disc 2 is larger than that of the pressing and throwing disc 3. As the device moves forward, the straw-pushing disc 2 makes the straw-pushing teeth 11 contact the ground surface under the gravity of the device body, and the straw-pushing disc 2 rotates around its center under the action of soil resistance. At the same time, the straw-pushing disc 2 drives the pressing and throwing disc 3 to rotate through the planetary gear transmission system 4. The planetary gear transmission system 4 is a speed-increasing transmission, and the speed of the pressing and throwing disc 3 is higher than that of the straw-pushing disc 2. The straw-pushing disc 2 maintains a certain angle with the forward direction, and pushes the straw on the ground within its working width to one side. When the forward speed is fast, the straw accumulates. When the straw accumulates to the sweeping height of the pressing and throwing disc 3, the pressing and throwing teeth 10 of the pressing and throwing disc 3 press the accumulated straw and then throw it to the side and rear. Since the pressing and throwing disc 3 increases the speed by the planetary gear transmission system 4, the accumulated straw can be effectively and timely cleaned to prevent blockage.

[0013] The tooth curve of the pressing and throwing teeth 10 of the pressing and throwing disc 3 is a combination curve of an Archimedean spiral and a Cartesian leaf line. This combined curve can realize the process of first pressing and then scattering the accumulated straw produced by the side pushing of the straw pushing disc 2. Since the circumferential speed of the pressing and throwing disc 3 is relatively high after the acceleration, the combined curve pressing and throwing teeth 10 realize the straw sliding cutting and scattering rather than the stirring and scattering. On the one hand, it prevents the accumulated straw from crossing the straw pushing disc 2 and causing blockage. At the same time, it ensures that the side-thrown straw has a lower initial scattering velocity to avoid the straw being scattered to the adjacent sowing interval.

Claims

1. A follow-up speed-increasing push, press and throw integrated inter-row straw cleaning device suitable for no-tillage sowing units, characterized in that The follow-up speed-increasing push, press and throw integrated inter-row straw clearing device suitable for a no-tillage sowing unit mainly comprises a connecting frame (1), a straw pushing disc (2), a press and throw disc (3) and a planetary gear transmission system (4); the planetary gear transmission system (4) comprises a gear ring (5), a sun gear (6), a planetary gear (7) and a retaining frame (8); the gear ring (5) is fixedly mounted on the connecting frame (1); the straw pushing disc (2) is fixedly mounted on the retaining frame (8); the press and throw disc (3) is fixedly mounted on the gear shaft (9) of the sun gear (6); the straw pushing disc (2) and the press and throw disc (3) are coaxially hinged and rotate relative to each other; the straw pushing disc (2) and the press and throw disc (3) rotate in the same direction; the circumferential diameter of the straw pushing disc (2) is larger than the circumferential diameter of the press and throw disc (3); The planetary gear transmission system (4) is a speed-increasing transmission; the straw-pushing teeth (11) of the straw-pushing disc (2) contact the ground surface under the action of the device's own gravity. As the device moves forward, the straw-pushing disc (2) rotates around its center under the action of soil resistance, and drives the pressing and throwing disc (3) to rotate at a speed-increasing rate through the planetary gear transmission system (4). The straw-pushing disc (2) maintains a certain angle with the advancing direction, and pushes the straw within its working width to one side. When the advancing speed is fast, the straw accumulates on the surface of the straw-pushing disc (2). When the straw accumulates to the sweeping height of the pressing and throwing disc (3), the pressing and throwing teeth (10) of the pressing and throwing disc (3) press the accumulated straw and then throw it to the side and rear. The pressing and throwing disc (3) increases the speed of rotation through the planetary gear transmission system (4) to clean the accumulated straw; The tooth profile curve of the pressure-throwing teeth (10) of the pressure-throwing disc (3) is a combined curve of an Archimedean spiral and a Cartesian leaf line; the bending direction of the tooth profile of the pressure-throwing teeth (10) is opposite to the rotation direction of the pressure-throwing disc (3); An arc-shaped pressing and polishing area is formed between the outer convex surface of the pressing and polishing tooth (10) and the inner concave surface of the adjacent pressing and polishing tooth (10); The combined curve presses the straw first and then throws it, and slides and scatters the straw to reduce the initial scattering velocity.

2. According to the follow-up speed-increasing push, press and throw integrated inter-row straw clearing device adapted to the no-till seeding unit of claim 1, the combined curve realizes the process of pressing the straw first and then throwing it, and the combined curve pressing and throwing teeth (10) slide and scatter the straw instead of stirring and scattering it. On the one hand, it prevents the accumulated straw from crossing the straw pushing plate (2) and causing blockage, and at the same time, ensures that the side-thrown straw has a lower initial scattering velocity to avoid the straw being thrown into the adjacent sowing interval.

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