Key features and structural components of a clutch-independent transmission dual-speed rotary tiller
Patent Information
- Application Number
- CN202521271595.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-20
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2035-06-20
AI Technical Summary
[0003]在现代农业装备中，离合器独立传动双速旋耕机主要特点结构部件凭借高效的作业性能，成为农田耕作的常用设备，然而，当前市面上这类旋耕机普遍存在一个显著弊端，其变速齿轮大多暴露在机体外部，作业时，旋耕机在复杂多变的农田环境中行进，杂草藤蔓极易缠绕在裸露的齿轮上，形成层层阻碍；碎石、泥土等颗粒状杂物会频繁冲击齿轮齿面，致使齿牙磨损，此外，农田里的秸秆残茬在机械运转过程中，也会卷入齿轮传动区域，与高速转动的齿轮发生剧烈磕碰，不仅打乱齿轮正常的啮合节奏，造成传动失准，还可能引发齿轮断裂等严重故障，长期如此，不仅极大缩短了变速齿轮的使用寿命，频繁的维修更换更增加了农机作业成本，严重影响旋耕机的作业效率与稳定性
[0014]1、该离合器独立传动双速旋耕机主要特点结构部件，通过设置的保护机构，在实际作业中，L 型箱展现出卓越的防护性能，无论是田间肆意生长的藤蔓杂草，还是飞溅而起的碎石土块，在接触到箱体的瞬间便被有效阻挡，无法侵入内部齿轮传动区域，这种设计不仅从根源上消除了外界杂物对齿轮的干扰，确保了变速齿轮始终以精准稳定的转速运行，维持高效的变速性能，还显著延长了旋耕机的整体使用寿命，大幅降低了农机设备的维护成本，为现代农业高效、稳定的耕作作业提供了可靠保障。
Smart Images
Figure CN224698318U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rotary tiller technology, specifically to the main structural components of a clutch-independent transmission dual-speed rotary tiller. Background Technology
[0002] Rotary tillers are agricultural machines used in conjunction with tractors to perform tilling and harrowing operations. They are widely used due to their strong soil-breaking ability and ability to create a flat surface after tilling. They also chop up stubble buried below the surface, facilitating seeder operations and providing a good seedbed for later sowing. Rotary tillers also break up the plow pan, restore soil structure, improve soil water retention, eliminate some weeds, reduce pests and diseases, level the surface, and improve the standard of agricultural mechanization.
[0003] In modern agricultural equipment, clutch-operated dual-speed rotary tillers, with their high-efficiency operation, have become commonly used in farmland cultivation. However, a significant drawback of these rotary tillers on the market is that most of their transmission gears are exposed on the outside of the machine. During operation, the rotary tiller moves through complex and changing farmland environments, where weeds and vines easily become entangled in the exposed gears, creating layers of obstacles. Particles such as gravel and soil frequently impact the gear teeth, causing wear. In addition, straw residues from the farmland can also be drawn into the gear transmission area during machine operation, violently colliding with the high-speed rotating gears. This not only disrupts the normal meshing rhythm of the gears, causing transmission inaccuracies, but may also lead to serious malfunctions such as gear breakage. Over time, this not only greatly shortens the service life of the transmission gears, but also increases the cost of agricultural machinery operation due to frequent maintenance and replacement, seriously affecting the operating efficiency and stability of the rotary tiller. Utility Model Content
[0004] The purpose of this invention is to provide key structural components for a clutch-independent transmission dual-speed rotary tiller to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a clutch-independent transmission dual-speed rotary tiller with the following main structural components, including a crossbeam, a protective mechanism on the top of the crossbeam, a speed-changing mechanism inside the protective mechanism, and connecting flanges fixedly connected to both sides of the crossbeam;
[0006] The protection mechanism includes an L-shaped box set on the top of the crossbeam. Support members are fixedly connected to both sides of the surface of the L-shaped box. A connecting bearing is fixedly connected inside the support member. A first support shaft is fixedly connected to the inner ring of the connecting bearing.
[0007] Preferably, support bearings are fixedly connected to both sides of the surface of the first support shaft, and the two support bearings are symmetrically arranged. A limiting member is provided on one side of each support bearing, and the limiting member is fixedly connected to the surface of the first support shaft. The support bearings can effectively support the first support shaft and ensure that the first support shaft will not deviate during rotation.
[0008] Preferably, a fixing plate is fixedly connected to the bottom of the support bearing, and a support block is provided on one side of the fixing plate. Threaded holes are provided in both the support block and the fixing plate, and fixing bolts are threaded into the threaded holes. The fixing plate transmits the load of the support bearing to the support block and locks it with the fixing bolts to prevent the support bearing from shifting during operation and to ensure the positional accuracy of the entire transmission mechanism.
[0009] Preferably, the transmission mechanism includes a second support shaft, which is rotatably connected to the L-shaped housing. A pulley assembly is fixedly connected to the left side of the second support shaft. The fixed plate transmits the load of the support bearing to the support block and is locked by fixing bolts to prevent the support bearing from shifting during operation and to ensure the positional accuracy of the entire transmission mechanism.
[0010] Preferably, a first spur gear is fixedly connected to the surface of the second support shaft, a fourth spur gear meshes with the surface of the first spur gear, and a placement shaft is fixedly connected inside the fourth spur gear. The placement shaft is rotatably connected to the L-shaped housing. The rotational power of the second support shaft is transmitted to the placement shaft through gear meshing, realizing the initial conversion of speed or torque (the torque increases when the speed decreases, and vice versa).
[0011] Preferably, the surface of the fourth spur gear meshes with the third spur gear, the inner ring of the third spur gear is fixedly connected to the first connecting shaft, the first connecting shaft is rotatably connected to the L-shaped housing, the right side of the third spur gear is provided with the first speed-changing sliding gear, the first speed-changing sliding gear is slidably connected to the surface of the first connecting shaft, and when the sliding gear disengages, the power transmission can be temporarily interrupted, which is convenient for shifting or stopping operations.
[0012] Preferably, the surface of the third spur gear meshes with a second spur gear, the second spur gear is fixedly connected to the surface of the first support shaft, and a second variable speed sliding gear is provided on the right side of the second spur gear. The second variable speed sliding gear is slidably connected to the surface of the first support shaft, and the power of the second support shaft is transmitted to the first support shaft via the gear. The switching of the sliding gear can ensure stable output speed and avoid power fluctuations affecting the tillage effect.
[0013] Compared with the prior art, this utility model provides key structural components for a clutch-independent transmission dual-speed rotary tiller, which has the following beneficial effects:
[0014] 1. The main structural features of this clutch-independent dual-speed rotary tiller include a protective mechanism. The L-shaped gearbox exhibits excellent protection during operation, effectively blocking unruly vines and weeds, as well as flying debris, from entering the internal gear transmission area. This design not only eliminates interference from external debris, ensuring the gears operate at precise and stable speeds and maintain high-efficiency transmission performance, but also significantly extends the overall lifespan of the rotary tiller, greatly reducing maintenance costs and providing a reliable guarantee for efficient and stable farming operations in modern agriculture.
[0015] 2. The main structural features of this clutch-independent dual-speed rotary tiller are its independent transmission and variable speed mechanism. By reducing the rotational speed, the tiller blades can apply greater torque to break up hard soil clods and cut weed roots, preventing the machine from jamming due to excessive resistance and ensuring uniform tillage depth. The high-speed mode is suitable for loosening soil or shallow tillage, accelerating the blade rotation speed, reducing excessive soil compaction, and improving soil breaking efficiency, resulting in a smoother surface, suitable for land preparation before sowing. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the overall structure of this utility model from an oblique angle.
[0019] Figure 3 This is a schematic diagram of the protection mechanism of this utility model;
[0020] Figure 4 This is a schematic diagram of the speed change mechanism of this utility model;
[0021] Figure 5 This is a cross-sectional schematic diagram of the speed change mechanism of this utility model.
[0022] In the diagram: 1. Crossbeam; 2. Protective mechanism; 21. Support block; 22. Support bearing; 23. Limiting component; 24. L-shaped housing; 25. Support component; 26. Fixing plate; 27. First support shaft; 3. Speed change mechanism; 31. Pulley assembly; 32. Second support shaft; 33. First spur gear; 34. First speed change sliding gear; 35. First connecting shaft; 36. Second speed change sliding gear; 37. Second spur gear; 38. Third spur gear; 39. Fourth spur gear; 301. Placement shaft; 4. Connecting flange. Detailed Implementation
[0023] 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.
[0024] This utility model provides a technical solution:
[0025] Example 1:
[0026] Combination Figure 1-2 to Figure 3-4 The main structural components of the clutch-independent transmission dual-speed rotary tiller include a crossbeam 1, a protective mechanism 2 on the top of the crossbeam 1, a speed-changing mechanism 3 inside the protective mechanism 2, and connecting flanges 4 fixedly connected to both sides of the crossbeam 1.
[0027] The protection mechanism 2 includes an L-shaped box 24 set on the top of the crossbeam 1. Support members 25 are fixedly connected to both sides of the surface of the L-shaped box 24. A connecting bearing is fixedly connected inside the support member 25. A first support shaft 27 is fixedly connected to the inner ring of the connecting bearing.
[0028] Furthermore, support bearings 22 are fixedly connected to both sides of the surface of the first support shaft 27. The two support bearings 22 are symmetrically arranged. A limiting member 23 is provided on one side of the support bearing 22. The limiting member 23 is fixedly connected to the surface of the first support shaft 27. Through the support bearings 22, the first support shaft 27 can be effectively supported, ensuring that the first support shaft 27 will not deviate during rotation.
[0029] Furthermore, a fixing plate 26 is fixedly connected to the bottom of the support bearing 22, and a support block 21 is provided on one side of the fixing plate 26. Threaded holes are opened in both the support block 21 and the fixing plate 26, and fixing bolts are threaded into the threaded holes. The fixing plate 26 transmits the load of the support bearing 22 to the support block 21 and locks it with the fixing bolts to prevent the support bearing 22 from shifting during operation and to ensure the positional accuracy of the entire transmission mechanism.
[0030] Example 2:
[0031] See Figure 5 Furthermore, based on Embodiment 1, the transmission mechanism 3 further includes a second support shaft 32, which is rotatably connected to the L-shaped housing 24. A pulley group 31 is fixedly connected to the left side of the second support shaft 32. The fixing plate 26 transmits the load of the support bearing 22 to the support block 21 and locks it with fixing bolts to prevent the support bearing 22 from shifting during operation and to ensure the positional accuracy of the entire transmission mechanism.
[0032] Furthermore, a first spur gear 33 is fixedly connected to the surface of the second support shaft 32, a fourth spur gear 39 meshes with the surface of the first spur gear 33, and a placement shaft 301 is fixedly connected inside the fourth spur gear 39. The placement shaft 301 is rotatably connected inside the L-shaped housing 24. The rotational power of the second support shaft 32 is transmitted to the placement shaft 301 through gear meshing, realizing the initial conversion of speed or torque (the torque increases when the speed decreases, and vice versa).
[0033] Furthermore, the surface of the fourth spur gear 39 is meshed with the third spur gear 38, and the inner ring of the third spur gear 38 is fixedly connected to the first connecting shaft 35. The first connecting shaft 35 is rotatably connected to the L-shaped housing 24. The right side of the third spur gear 38 is provided with the first speed-changing sliding gear 34, which is slidably connected to the surface of the first connecting shaft 35. When the sliding gear disengages, the power transmission can be temporarily interrupted, which is convenient for shifting gears or stopping the machine.
[0034] Furthermore, a second spur gear 37 meshes with the surface of the third spur gear 38. The second spur gear 37 is fixedly connected to the surface of the first support shaft 27. A second variable speed sliding gear 36 is provided on the right side of the second spur gear 37. The second variable speed sliding gear 36 is slidably connected to the surface of the first support shaft 27. The power of the second support shaft 32 is transmitted to the first support shaft 27 via the gear. The switching of the sliding gear can ensure stable output speed and avoid power fluctuations affecting the tillage effect.
[0035] In actual operation, when it is necessary to change the speed of the rotary tiller, the first support shaft 27 can be rotated. At this time, the second flat gear 37 and the second variable speed sliding gear 36 rotate. The second variable speed sliding gear 36 and the first variable speed sliding gear 34 can be moved by controlling the clutch. Since the gears are of different sizes, the speed of the second support shaft 32 can be adjusted by using gears of different sizes, thereby achieving the purpose of changing speed. The low speed is suitable for heavy clay soil, compacted land, or deep plowing needs. By reducing the speed, the rotary tiller blades can apply greater torque to break up hard soil clods and cut weed roots, avoiding the machine from jamming due to excessive resistance and ensuring uniform tillage depth. The high speed is suitable for loose soil or shallow plowing operations. It speeds up the rotation speed of the blades, reduces excessive soil compaction, and improves soil breaking efficiency, making the surface smoother, which is suitable for land preparation before sowing.
[0036] The L-shaped housing prevents the gears from contacting other components and from colliding with external parts during operation, thus ensuring the gears' speed and transmission performance.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. The main feature of the clutch independent transmission double-speed rotary cultivator structure components, including crossbeam (1), characterized in that: The top of the crossbeam (1) is provided with a protective mechanism (2), and a speed change mechanism (3) is provided inside the protective mechanism (2). Both sides of the crossbeam (1) are fixedly connected with connecting flanges (4). The protection mechanism (2) includes an L-shaped box (24) set on the top of the crossbeam (1). Support members (25) are fixedly connected to both sides of the surface of the L-shaped box (24). A connecting bearing is fixedly connected inside the support member (25), and a first support shaft (27) is fixedly connected to the inner ring of the connecting bearing.
2. The clutch independent drive dual speed rotary cultivator primary feature structural component of claim 1, wherein: Support bearings (22) are fixedly connected to both sides of the surface of the first support shaft (27). The two support bearings (22) are symmetrically arranged. A limiting member (23) is provided on one side of the support bearing (22). The limiting member (23) is fixedly connected to the surface of the first support shaft (27).
3. The clutch independent drive dual speed rotary cultivator primary feature structural component of claim 2, wherein: The bottom of the support bearing (22) is fixedly connected to a fixing plate (26), and a support block (21) is provided on one side of the fixing plate (26). Threaded holes are provided in both the support block (21) and the fixing plate (26), and fixing bolts are threaded into the threaded holes.
4. The clutch independent drive dual speed rotary cultivator primary feature structural component of claim 1, wherein: The speed change mechanism (3) includes a second support shaft (32), which is rotatably connected to the L-shaped housing (24). A pulley group (31) is fixedly connected to the left side of the second support shaft (32).
5. The clutch independent drive dual speed rotary cultivator primary feature structural component of claim 4, wherein: The second support shaft (32) is fixedly connected to a first spur gear (33), and a fourth spur gear (39) meshes with the surface of the first spur gear (33). A placement shaft (301) is fixedly connected inside the fourth spur gear (39), and the placement shaft (301) is rotatably connected inside the L-shaped box (24).
6. The clutch independent drive dual speed rotary cultivator primary feature structural component of claim 5, wherein: The surface of the fourth spur gear (39) is meshed with the third spur gear (38). The inner ring of the third spur gear (38) is fixedly connected to the first connecting shaft (35). The first connecting shaft (35) is rotatably connected to the L-shaped housing (24). The right side of the third spur gear (38) is provided with the first variable speed sliding gear (34), which is slidably connected to the surface of the first connecting shaft (35).
7. The clutch-independent drive dual-speed rotary cultivator of claim 6, wherein: The surface of the third spur gear (38) is meshed with the second spur gear (37), the second spur gear (37) is fixedly connected to the surface of the first support shaft (27), and a second variable speed sliding gear (36) is provided on the right side of the second spur gear (37), the second variable speed sliding gear (36) is slidably connected to the surface of the first support shaft (27).