straw full amount of pulverization rotary tiller blade shaft

Abstract

The utility model relates to a kind of straw full quantity pulverization rotary tiller blade axle, including blade axle body and rotary tiller blade, rotary tiller blade is unit with group, each group rotary tiller blade is fixedly arranged on blade axle body in spiral dislocation mode, each group rotary tiller blade includes 4 rotary tiller blades, each rotary tiller blade is fixedly connected with blade axle body by a tool magazine seat welded on the surface of blade axle body, the four tool magazine seats of each group rotary tiller blade are distributed in cross shape on the surface of blade axle body, the blade root of rotary tiller blade is inserted in the magazine groove of tool magazine seat and is fixedly connected with tool magazine seat by through bolt.Each rotary tiller blade of the straw full quantity pulverization rotary tiller blade axle is positioned and kept posture by an independent tool magazine seat, can ensure that each rotary tiller blade is always in very stable, stable state, and there is no interference between each other;The number of each group rotary tiller blade is 4, and the arrangement design is more reasonable, can more efficiently cut the stubble below ground, ensure rotary tiller effect.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery manufacturing technology, and in particular to a rotary tiller shaft for full-volume straw crushing. Background Technology

[0002] Rotary tillers are tillage machines that work in conjunction with tractors to perform tilling and harrowing operations. They are widely used because of their strong soil-breaking ability and the ability to flatten the ground after tilling. At the same time, they can chop up the stubble buried below the surface to facilitate the operation of seeders and provide a good seedbed for later sowing.

[0003] The rotary tiller shaft is a key component of a rotary tiller, and its structural performance directly affects the smoothness of its operation and the tilling effect. The rotary tiller shaft consists of the shaft body and the rotary blades. Currently, the rotary blades are typically mounted on the shaft body by welding several blade holders axially at intervals. Several rotary blades are then fixed to each blade holder with bolts, forming a set of blades on each blade holder. These sets of blades are arranged in a spiral, staggered pattern on the shaft body via the blade holders. The disadvantage of this method of fixing the blades to the blade holders is that each set of blades shares a single blade holder and is entirely fixed to it with bolts. This results in significant stress on the blade holders during operation (the more blades installed, the greater the stress and the lower the structural strength). If the blade holders become twisted or deformed, it will affect the operation of the entire set of blades, impacting the tilling effect and further degrading the smoothness of the shaft body's operation, increasing vibration. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a rotary tiller shaft for full-volume straw crushing, so as to overcome the defects and deficiencies of existing similar technologies and products as described in the background art.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a straw full-volume crushing rotary tiller shaft, including a shaft body and rotary tiller blades. The rotary tiller blades are arranged in sets, and each set of rotary tiller blades is spirally staggered and fixed on the shaft body. Each set of rotary tiller blades includes 4 rotary tiller blades. Each rotary tiller blade is fixedly connected to the shaft body through a blade holder welded to the surface of the shaft body. The 4 blade holders of each set of rotary tiller blades are arranged in a cross shape on the surface of the shaft body. The root of the rotary tiller blade is embedded in the groove of the blade holder and is fixedly connected to the blade holder through a through bolt.

[0006] The beneficial effects of this utility model are as follows: Compared with the existing rotary tiller blade shaft structure, each rotary tiller blade of this straw full-volume crushing rotary tiller shaft is positioned and maintained by an independent blade holder, and is fixed with the assistance of through bolts. Therefore, it can ensure that each rotary tiller blade is always in a very stable and secure state, and there is no interference between them. Each set of rotary tiller blades has 4 blades, which are distributed in a cross shape on the surface of the blade shaft body through the blade holder. The arrangement design is more scientific and reasonable, and it can more comprehensively and efficiently crush the stubble below the ground during operation, ensuring the rotary tillage effect. Attached Figure Description

[0007] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0008] Figure 1 , Figure 2 , Figure 3 These are front view, side view, and three-dimensional structural schematic diagrams of this utility model;

[0009] Figure 4 , Figure 5 , Figure 6 These are also front view, side view, and three-dimensional structural schematic diagrams of this utility model (with the blades of the two outermost sets of rotary tillage blades on the cutter shaft body all facing inward).

[0010] In the diagram: 1. Cutter shaft body; 2. Rotary tiller blades; 3. Cutter magazine holder; 4. Through bolt. Detailed Implementation

[0011] A rotary tiller shaft for complete straw crushing, such as Figures 1 to 3 As shown, it includes a blade shaft body 1 and rotary tiller blades 2. The rotary tiller blades 2 are arranged in sets, and each set of rotary tiller blades 2 is fixedly arranged in a spiral staggered manner on the blade shaft body 1. Each set of rotary tiller blades 2 includes 4 rotary tiller blades 2. Each rotary tiller blade 2 is fixedly connected to the blade shaft body 1 by a blade magazine seat 3 welded to the surface of the blade shaft body 1. The 4 blade magazine seats 3 of each set of rotary tiller blades 2 are arranged in a cross shape on the surface of the blade shaft body 1. The root of the rotary tiller blade 2 is inserted into the magazine groove of the blade magazine seat 3 and is fixedly connected to the blade magazine seat 3 by a through bolt 4.

[0012] Each rotary tiller blade 2 on the cutter shaft body 1 is positioned and maintained by an independent blade holder 3, and further secured by through bolts 4. This ensures that each rotary tiller blade 2 remains in a very stable and secure state, without any interference between them. Each set of rotary tiller blades 2 consists of four blades, arranged in a cross shape on the surface of the cutter shaft body 1 via the blade holder 3. This more scientific and rational arrangement allows for more comprehensive and efficient chopping of stubble below the surface during operation, ensuring optimal rotary tillage results.

[0013] Generally, in each set of rotary tiller blades (4 blades), one pair of blades has their tips (blades) facing left, and the other pair has their tips facing right (see...). Figure 2 , Figure 3 In some applications, the two sets of rotary tillage blades located on the outermost side of the cutter shaft body will have their blades adjusted so that all of them face inwards (see...). Figure 5 , Figure 6 ).

[0014] The above embodiments are only used to explain the present utility model and are not intended to limit the protection of the present utility model. Any non-substantial modifications made based on the essential solution of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A rotary tiller shaft for crushing straw, comprising a shaft body (1) and rotary tiller blades (2), wherein the rotary tiller blades (2) are arranged in sets, with each set of rotary tiller blades (2) spirally staggered and fixed on the shaft body (1), characterized in that: Each set of rotary tillage blades (2) includes 4 rotary tillage blades (2). Each rotary tillage blade (2) is fixedly connected to the cutter shaft body (1) by a blade holder (3) welded to the surface of the cutter shaft body (1). The 4 blade holders (3) of each set of rotary tillage blades (2) are arranged in a cross shape on the surface of the cutter shaft body (1). The root of the rotary tillage blade (2) is inserted into the groove of the blade holder (3) and is fixedly connected to the blade holder (3) by a through bolt (4).

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