Novel efficient rotary cultivator cutter shaft
By improving the rotary tiller's cutter shaft structure and adopting a cutter shaft tube and multiple cutter discs design, the problem of uncrushed straw and stubble in harsh environments has been solved, thus improving tillage quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-03-20
AI Technical Summary
The blade shaft of existing rotary tillers is prone to breakage in harsh environments, affecting the quality of tillage, especially since straw and stubble are not fully crushed, which affects the sowing effect.
A new rotary tiller cutter shaft was designed, including a cutter shaft tube, a cutter shaft connecting plate, and multiple cutter discs. Through the stable connection and spiral installation of the rotary tiller blades, rigidity and stability are enhanced, achieving uniform cutting and crushing.
It improves the crushing effect of straw and stubble, enhances the working efficiency of rotary tillers, reduces soil damage, meets agronomic requirements, and reduces power consumption and labor output.
Smart Images

Figure CN224007107U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to agricultural implement accessory technical field, concretely is a novel high -efficient rotary cultivator cutter shaft. BACKGROUND
[0002] At present, the similar rotary cultivator cutter shafts at home and abroad are generally welded with cutter holders on cutter shafts, due to the limited contact area of the cutter holder and the cutter shaft, plus the uncontrollable factors of the welding process and the material quality of the cutter holder, the cutter holder welds are often broken during operation, which directly affects the quality of cultivation. The object of the rotary cultivator operation is soil, and the operation environment is very poor. There are crop residues on the surface of the soil and straw and roots in the soil. In addition, the soil is cut and crushed. When the rotary cultivator operates, not only the soil environment is poor, but also the impact is large, which directly and seriously affects the operation quality of the rotary cultivator, affects the requirements of the seeds on the seedbed, and finally affects the yield of crops.
[0003] Under the current requirements of protecting the northeast black soil and conservation tillage, the straw and roots left in the farmland cannot be crushed, plus the different properties of the soil, after the operation of the rotary cultivator, the straw and roots cannot be crushed to the extent required by the farmers, which directly affects the seeding, so a novel high -efficient rotary cultivator cutter shaft is needed to solve this outstanding contradiction. CONTENT OF THE UTILITY MODEL
[0004] The utility model discloses a novel high -efficient rotary cultivator cutter shaft, has the advantages of good crushing effect, solves the problem that the straw and roots left in the farmland cannot be crushed, plus the different properties of the soil, after the operation of the rotary cultivator, the straw and roots cannot be crushed to the extent required by the farmers, which directly affects the seeding.
[0005] To achieve the above object, the utility model provides the following technical scheme: a novel high -efficient rotary cultivator cutter shaft, including cutter shaft pipe,
[0006] The left and right ends of the cutter shaft pipe are sleeved with cutter shaft connecting discs, and the surface of the cutter shaft pipe and the side opposite to the cutter shaft connecting disc are sleeved with cutter discs.
[0007] The number of cutter discs is several.
[0008] As a novel high -efficient rotary cultivator cutter shaft of the utility model, the surface of the cutter shaft pipe is fixedly connected with cutter holders on the left and right sides, and the cutter holders are fixedly connected with the cutter shaft connecting discs.
[0009] As a novel high -efficient rotary cultivator cutter shaft of the utility model, the cutter shaft connecting disc includes a first disc, and a cutter holder groove is formed around the surface of the first disc.
[0010] As a novel high-efficiency rotary cultivator cutter shaft of the utility model, the first disc is internally provided with a first pipe hole, and the first pipe hole is fixedly sleeved on the surface of the cutter shaft pipe.
[0011] As a novel high-efficiency rotary cultivator cutter shaft of the utility model, a first connecting hole is formed around the first disc, and the first connecting hole is connected with the driving end of the rotary cultivator.
[0012] As a novel high-efficiency rotary cultivator cutter shaft of the utility model, the cutter disc comprises a second disc, a second connecting hole is formed around the second disc, and the second connecting hole is used for mounting a rotary cultivator curved blade.
[0013] As a novel high-efficiency rotary cultivator cutter shaft of the utility model, the second disc is internally provided with a second pipe hole, and the second pipe hole is fixedly sleeved on the surface of the cutter shaft pipe.
[0014] Compared with the prior art, the utility model has the beneficial effects as follows:
[0015] 1、 the utility model discloses an improved cutter shaft structure, which significantly improves the crushing effect of the rotary cultivator on straw and stubble, not only can effectively crush crop residues on the ground and in the soil to meet the requirements of sowing, but also can adapt to different soil conditions, improve work efficiency and reduce damage to the soil, thereby directly solving the problem of affecting sowing quality due to insufficient crushing of straw and stubble.
[0016] 2、 the utility model discloses a plurality of cutter discs, so that the soil, straw and stubble can be more uniformly cut and crushed, which not only improves the rotary cultivation quality, but also expands the rotary cultivation width, thereby improving the overall work efficiency, the cutter shaft connecting disc is fixedly sleeved on the surface of the cutter shaft pipe through the first pipe hole, and the cutter seat groove and the cutter seat form a stable connection, in addition, the cutter disc is fixed on the cutter shaft pipe through the second pipe hole, which enhances the rigidity and stability of the entire cutter shaft system, ensures that the equipment can reliably operate in harsh working environment, since the single-hole cutter seat is vertically welded on the inner side of the cutter shaft connecting disc, and the middle cutter disc has a connecting hole for connecting the curved blade, which can achieve better crushing effect and improve the soil removal performance, which helps to reduce the number of tractor entering the field, reduce the soil compaction degree, and thus is beneficial to crop growth, the novel high-efficiency rotary cultivator cutter shaft can complete multiple agricultural requirements such as plowing and soil crushing, stubble and straw treatment in one operation, reduces the number of tractors entering the field, reduces power consumption, saves manpower output and saves energy. BRIEF DESCRIPTION OF DRAWINGS
[0017] Fig. 1 The utility model structure schematic drawing is shown in the figure.
[0018] Fig. 2 It is the schematic view of the cutter shaft connecting disc of the utility model;
[0019] Fig. 3 It is the schematic view of the cutter disc of the utility model.
[0020] In the figure: 1, cutter shaft pipe; 2, cutter shaft connecting disc; 3, cutter disc; 4, cutter seat; 201, first disc; 202, first connecting hole; 203, cutter seat groove; 204, first pipe hole; 301, second disc; 302, second connecting hole; 303, second pipe hole. DETAILED DESCRIPTION
[0021] Please refer to Figs. 1-3 A novel high-efficiency rotary cultivator cutter shaft, comprising a cutter shaft pipe 1, cutter shaft connecting discs 2 are sleeved on the left and right ends of the cutter shaft pipe 1, and cutter discs 3 are sleeved on the surface of the cutter shaft pipe 1 and located on the side opposite to the cutter shaft connecting discs 2.
[0022] Further, the number of the cutter discs 3 is several.
[0023] Further, cutter seats 4 are fixedly connected to the left and right sides of the surface of the cutter shaft pipe 1, and the cutter seats 4 are fixedly connected to the cutter shaft connecting discs 2.
[0024] Further, the cutter shaft connecting disc 2 comprises a first disc 201, and cutter seat grooves 203 are formed around the surface of the first disc 201.
[0025] Further, a first pipe hole 204 is formed in the inside of the first disc 201, and the first pipe hole 204 is fixedly sleeved on the surface of the cutter shaft pipe 1.
[0026] Further, first connecting holes 202 are formed around the first disc 201, and the first connecting holes 202 are connected to the driving end of the rotary cultivator.
[0027] Further, the cutter disc 3 comprises a second disc 301, second connecting holes 302 are formed around the second disc 301, and the second connecting holes 302 are used for mounting rotary cultivator curved knives, and the rotary cultivator curved knives are installed in a spiral shape on the second connecting holes 302.
[0028] Further, a second pipe hole 303 is formed in the inside of the second disc 301, and the second pipe hole 303 is fixedly sleeved on the surface of the cutter shaft pipe 1.
[0029] The cutter shaft pipe 1 is the core bearing component of the complete set of devices, is used for transmitting power and fixing other components, the cutter shaft connecting discs 2 are sleeved on the left and right ends of the cutter shaft pipe 1, play the role of connecting the driving end, the cutter discs 3 are fixed on the surface of the cutter shaft pipe 1, and the number is several, and the rotary cultivator curved knives can be installed on each cutter disc 3.
[0030] In the course of work, power is transmitted to the rotary cultivator by the transmission system of tractor and other equipment, the driving end of the rotary cultivator is connected with the first connecting hole 202 on the cutter shaft adapter 2, the power is first transmitted to the first disc 201, then the rotary motion is transmitted to the whole cutter shaft system through the cutter seat 4 and the cutter shaft tube 1 fixed therewith, the cutter shaft tube 1 drives all the cutter discs 3 fixed on the surface thereof to rotate synchronously.
[0031] Each cutter disc 3 comprises a second disc 301, a plurality of second connecting holes 302 are arranged on the second disc 301, the holes are used for fixing rotary cultivator sickles, the rotary cultivator sickles are installed on the cutter disc 3 in a spiral distribution manner, so that the soil cutting is more uniform, the resistance is reduced and the soil breaking effect is improved, the plurality of cutter discs 3 are arranged, so that the rotary cultivator width is larger, and the working efficiency is improved.
[0032] The cutter shaft adapter 2 is fixedly sleeved on the surface of the cutter shaft tube 1 through the first tube hole 204 in the inside, meanwhile, the cutter seat groove 203 on the cutter shaft adapter 2 is matched with the cutter seat 4, so as to form a stable connection, the design not only enhances the stability of the overall structure, but also facilitates the disassembly and replacement of parts, the cutter disc 3 is fixedly sleeved on the surface of the cutter shaft tube 1 through the second tube hole 303, and rotates at a high speed together with the cutter shaft tube 1, the distribution design of the plurality of cutter discs 3 is helpful to improve the coverage range of the rotary cultivation operation, and realizes more efficient land preparation.
[0033] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A novel high-efficiency rotary tiller cutter shaft, comprising a cutter shaft tube (1), characterized in that: The cutter shaft tube (1) is fitted with cutter shaft receiving discs (2) at both ends, and a cutter disc (3) is fitted on the surface of the cutter shaft tube (1) and on the side opposite to the cutter shaft receiving discs (2). The number of cutter heads (3) is several.
2. The novel high-efficiency rotary tiller cutter shaft according to claim 1, characterized in that: The cutter shaft tube (1) has cutter holders (4) fixedly connected to the left and right sides of its surface, and the cutter holders (4) are fixedly connected to the cutter shaft receiving plate (2).
3. The novel high-efficiency rotary tiller cutter shaft according to claim 2, characterized in that: The cutter shaft receiving plate (2) includes a first disc (201), and a cutter seat groove (203) is formed around the surface of the first disc (201).
4. The novel high-efficiency rotary tiller cutter shaft according to claim 3, characterized in that: The first disk (201) has a first tube hole (204) inside, and the first tube hole (204) is fixedly sleeved on the surface of the cutter shaft tube (1).
5. A novel high-efficiency rotary tiller cutter shaft according to claim 4, characterized in that: The first disk (201) has a first connecting hole (202) circumferentially arranged on it, and the first connecting hole (202) is connected to the drive end of the rotary tiller.
6. A novel high-efficiency rotary tiller cutter shaft according to claim 5, characterized in that: The cutter head (3) includes a second disc (301), and a second connecting hole (302) is provided around the second disc (301). The second connecting hole (302) is used to install rotary tillage blades, which are installed in a spiral shape on the second connecting hole (302).
7. A novel high-efficiency rotary tiller cutter shaft according to claim 6, characterized in that: The second disc (301) has a second tube hole (303) inside, and the second tube hole (303) is fixedly sleeved on the surface of the cutter shaft tube (1).