A rotary knife structure of a rotary spreader

Abstract

The utility model discloses a rotary knife structure of rotary sowing machine, including rotary shaft and blade, the rotary shaft horizontal arrangement is detachably equipped with a plurality of connecting blocks on its outside, a plurality of connecting blocks spiral setting along the outer periphery of rotary shaft, the one end of connecting block away from rotary shaft is equipped with the blade perpendicularly arranged with connecting block, and one end of blade projects connecting block. The utility model discloses the connecting block and blade structure of detachable setting, solved the problem that traditional welding type rotary knife needs overall replacement when blade breaks, when individual blade is damaged, only needs to replace corresponding connecting block and blade assembly, does not need to discard whole cutter, and the use cost is reduced significantly.

Description

Technical Field

[0001] This utility model relates to the field of agricultural technology, and in particular to a rotary blade structure for a rotary seeder. Background Technology

[0002] With the development of technology, agricultural machinery has gradually replaced traditional manual operations, greatly improving the efficiency of operations and providing convenience for farmers. Among them, rotary seeders can effectively help farmers improve their sowing efficiency. The rotary blade is a component of the rotary seeder, and it is often driven to rotate by a rotating mechanism on the rotary seeder that is coaxial with it.

[0003] The blades on existing rotary cutters are often welded together as a single piece. However, when using a rotary seeder, some blades may break. Since re-welding the blades will affect the quality of use and requires overall adjustment, it is very troublesome. Therefore, when using existing rotary cutters, the entire machine needs to be replaced after a blade breaks, which is very wasteful. Utility Model Content

[0004] (a) Purpose of the utility model To address the technical problems existing in the background art, this utility model proposes a rotary blade structure for a rotary seeder. By using a detachable connecting block and blade structure, it solves the problem that traditional welded rotary blades require complete replacement when the blades break. When individual blades are damaged, only the corresponding connecting block and blade assembly need to be replaced, without discarding the entire blade, which significantly reduces the cost of use.

[0005] (II) Technical Solution This utility model provides a rotary blade structure for a rotary seeder, including a rotating shaft and blades. The rotating shaft is horizontally arranged, and multiple connecting blocks are detachably provided on its outer surface. The multiple connecting blocks are spirally arranged along the outer circumferential surface of the rotating shaft. A blade is provided at the end of the connecting block away from the rotating shaft, and one end of the blade extends out of the connecting block.

[0006] Preferably, any two connected blades extend in opposite directions from the connecting block they are connected to.

[0007] Preferably, it further includes a mounting sleeve, which is connected to the outer peripheral surface of the rotating shaft. The end of the mounting sleeve away from the rotating shaft is provided with a first groove. The connecting block extends into the first groove and slides against its inner wall. The mounting sleeve is provided with a fixing component for fixing the mounting sleeve and the blade.

[0008] Preferably, the fixing component includes a bolt and a nut, the mounting sleeve has a first through hole, the connecting block has a second through hole corresponding to the first through hole, the second through hole is movable to communicate with the first through hole, one end of the bolt passes through the first through hole and the second through hole, the nut is threaded onto one end of the bolt, the nut is movable to abut against the mounting sleeve, and the bolt abuts against the mounting sleeve.

[0009] Preferably, the blade and the connecting block are integrally formed.

[0010] Preferably, it also includes blocking rods, and both ends of the rotating shaft are coaxially fitted with the mounting ring, and the end of the mounting ring away from the blade is provided with multiple blocking rods.

[0011] Preferably, the plurality of blocking rods are circumferentially distributed at the end of the mounting ring away from the blade, and the plurality of blocking rods are at the same distance from the outer end face of the rotating shaft.

[0012] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects: In this utility model, the technical solution solves the problem that traditional welded rotary cutters need to be replaced as a whole when the blade breaks by using a detachable connecting block and blade structure. When individual blades are damaged, only the corresponding connecting block and blade assembly need to be replaced, without discarding the entire cutter, which significantly reduces the cost of use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the rotary blade structure of a rotary seeder proposed in this utility model.

[0014] Figure 2 This is an exploded view showing the installation and fitting of the connecting block in the rotary blade structure of a rotary seeder proposed in this utility model.

[0015] Figure 3 This is a schematic diagram of the cooperation structure of the blocking rod in the rotary blade structure of a rotary seeder proposed in this utility model.

[0016] Reference numerals: 1. Rotating shaft; 2. Mounting sleeve; 3. Connecting block; 4. Blade; 5. Bolt; 6. Nut; 7. Mounting ring; 8. Stop bar. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] like Figure 1-3 As shown, the present invention proposes a rotary blade structure for a rotary seeder, including a rotating shaft and blades. The rotating shaft is horizontally arranged, and multiple connecting blocks are detachably provided on its outer surface. The multiple connecting blocks are spirally arranged along the outer circumference of the rotating shaft. A blade is provided at the end of the connecting block away from the rotating shaft, and one end of the blade extends out of the connecting block.

[0021] This technical solution solves the problem of needing to replace the entire blade when it breaks in traditional welded rotary cutters by using a detachable connecting block and blade structure. When individual blades are damaged, only the corresponding connecting block and blade assembly need to be replaced, without discarding the entire cutter, which significantly reduces the cost of use. The spirally arranged connecting block design on the rotating shaft allows the blades to form a continuous trajectory during operation, ensuring the quality of work. Furthermore, the detachable nature of the connecting blocks makes it easy to adjust the spacing and angle of the blades according to different work requirements, improving the adaptability of the equipment.

[0022] Furthermore, this application also proposes that any two connected blades extend in opposite directions to the connecting block they are connected to. In response, this technical solution effectively disperses cutting resistance and reduces mutual interference between blades by making the extension directions of adjacent blades opposite. When the rotary seeder is operating, the alternating reverse arrangement of blades can prevent soil or crop residue from accumulating between adjacent blades, thereby reducing the risk of clogging.

[0023] Furthermore, this application also proposes a mounting sleeve that is connected to the outer peripheral surface of a rotating shaft. The end of the mounting sleeve away from the rotating shaft is provided with a first groove, and a connecting block extends into the first groove and slides against its inner wall. The mounting sleeve is provided with a fixing component for fixing the mounting sleeve and the blade.

[0024] Therefore, this technical solution achieves modular installation and position adjustment of the blade assembly through a detachable mounting sleeve structure, the sliding fit structure ensures that the blade spacing is adjustable while maintaining structural stability, and the fixing component provides reliable connection strength.

[0025] Furthermore, this application also proposes that the fixing component includes a bolt and a nut, the mounting sleeve is provided with a first through hole, the connecting block is provided with a second through hole corresponding to the first through hole, the second through hole is movable to communicate with the first through hole, one end of the bolt passes through the first through hole and the second through hole, the nut is threaded on one end of the bolt, the nut is movable to abut against the mounting sleeve, and the bolt abuts against the mounting sleeve.

[0026] Therefore, this technical solution enables quick assembly and disassembly of the blade through the use of bolts and nuts, solving the maintenance difficulties caused by welding and fixing of the blade in existing technologies. When the blade needs to be replaced, simply loosen the nut to remove the damaged blade along with the connecting block, replace it with a new blade, and then tighten it again. There is no need to replace the entire rotary cutter or perform welding operations. This design significantly reduces maintenance costs and time while ensuring the stability of the blade installation.

[0027] Furthermore, this application also proposes an integrally molded configuration for the blade and connecting block.

[0028] In response, this technical solution eliminates the problem of insufficient weld strength in traditional welding methods by designing the blade and connecting block as an integral structure, thereby further improving the strength of the blade and extending the service life of the rotary cutter.

[0029] Furthermore, this application also proposes that it includes a blocking rod, with mounting rings coaxially fitted at both ends of the rotating shaft, and multiple blocking rods provided at the end of the mounting ring furthest from the blade.

[0030] Therefore, by setting mounting rings and blocking rods at both ends of the rotating shaft, since one end of the rotating shaft is connected to the rotary seeder via a bearing, it can effectively prevent weeds from getting tangled during rotation, thus affecting the bearing. With the action of multiple blocking rods, weeds will get tangled on the multiple blocking rods, thereby effectively blocking the weeds and protecting the bearing at the connection between the rotating shaft and the rotary seeder from damage.

[0031] Furthermore, this application also proposes that multiple blocking rods are circumferentially distributed on the end of the mounting ring away from the blade, and that the multiple blocking rods are at the same distance from the outer end face of the rotating shaft.

[0032] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A rotary cutter structure for a rotary seeder, characterized in that, It includes a rotating shaft and a blade. The rotating shaft is horizontally arranged and has multiple connecting blocks detachably provided on its outer surface. The multiple connecting blocks are spirally arranged along the outer circumferential surface of the rotating shaft. A blade is provided at the end of the connecting block away from the rotating shaft and is arranged perpendicular to the connecting block. One end of the blade extends out of the connecting block.

2. The rotary blade structure of a rotary seeder according to claim 1, characterized in that, Any two connected blades extend in opposite directions to the connecting block they are connected to.

3. The rotary blade structure of a rotary seeder according to claim 1, characterized in that, It also includes a mounting sleeve, which is connected to the outer peripheral surface of the rotating shaft. The end of the mounting sleeve away from the rotating shaft is provided with a first groove. The connecting block extends into the first groove and slides against its inner wall. The mounting sleeve is provided with a fixing component for fixing the mounting sleeve and the blade.

4. The rotary blade structure of a rotary seeder according to claim 3, characterized in that, The fixing component includes a bolt and a nut. The mounting sleeve has a first through hole, and the connecting block has a second through hole corresponding to the first through hole. The second through hole is movable to communicate with the first through hole. One end of the bolt passes through the first through hole and the second through hole. The nut is threaded onto one end of the bolt and is movable to abut against the mounting sleeve. The bolt abuts against the mounting sleeve.

5. The rotary blade structure of a rotary seeder according to claim 1, characterized in that, The blade and the connecting block are integrally formed.

6. The rotary blade structure of a rotary seeder according to claim 1, characterized in that, It also includes blocking rods, and both ends of the rotating shaft are coaxially fitted with mounting rings, with multiple blocking rods provided at the end of the mounting ring away from the blade.

7. The rotary blade structure of a rotary seeder according to claim 6, characterized in that, The plurality of blocking rods are circumferentially distributed at the end of the mounting ring away from the blade, and the plurality of blocking rods are at the same distance from the outer end face of the rotating shaft.

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