Rotary tillage device, rotary cultivator and grass chopper

Abstract

The utility model relates to a rotary tillage device, a rotary cultivator and a grass chopper, which comprise a first mounting part and a second working part, two ends of the first mounting part are respectively connected with rotary blades, two ends of the first mounting part are respectively provided with a first working part, the first working parts are connected with the rotary blades, and the second working part is connected with the first working parts. The device has the advantages of being good in operation quality, high in operation efficiency, long in service life, stable and easy to control.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, and specifically refers to a rotary tillage device, a rotary tiller, and a straw crusher. Background Art

[0002] As an important mechanical equipment in modern agricultural production, the rotary tiller is widely used in the tillage and harrowing operations of farmland. Due to its strong soil-breaking ability and flat surface after tillage, it provides great convenience for agricultural production. The rotary tiller can not only effectively cut and crush the roots and stems buried below the ground surface, providing a good soil environment for seeding operations, but also has multiple functions such as breaking the underlying soil of the cultivated land, restoring the soil tillage layer structure, and improving the soil water storage and moisture retention capacity.

[0003] In a rotary tiller, the rotary tillage device equipped with rotary tillage blades is driven to rotate through a transmission device to complete the tillage operation, which is one of the core working components of the rotary tiller. The performance and service life of the rotary tillage device will directly affect the operation effect and efficiency of the rotary tiller.

[0004] However, when the existing rotary tillage devices are working, they often encounter some problems. First of all, sundries such as weeds and straws are extremely easy to wind around the mounting rod of the rotary tillage blade or the root of the rotary tillage blade, and the blade body of the rotary tillage blade is extremely easy to be wrapped by soil. This will undoubtedly greatly reduce the soil-breaking ability and the penetration depth of the rotary tillage blade, and then more time is required to complete the same workload, reducing the operation efficiency and quality of the rotary tiller. At the same time, due to the influence of weed winding and soil wrapping, the movement resistance of the rotary tillage blade will increase, and then the rotary tiller needs to output more power to drive the rotary tillage device to work. This will undoubtedly increase the fuel consumption of the rotary tiller, resulting in an increase in operation costs. In addition, it will also cause the rotary tillage device to bear additional stress and friction, resulting in abnormal wear of the rotary tillage device. In severe cases, it may even lead to problems such as deformation of the rotary tillage device and fracture of the rotary tillage blade.

[0005] Secondly, in most of the existing rotary tillage devices, the rotary tillage blades are installed on a mounting rod. Due to the complex and changeable conditions of the cultivated land, the ground surface is uneven and the soil contains hard objects such as stones. Therefore, when the rotary tillage device is working, the rotary tillage blades are extremely easy to swing and jump due to uneven force, which is likely to cause damage to the structure of the rotary tillage device. And these phenomena have an impact on the stability of the rotary tillage device, making the rotary tillage device difficult to control and affecting the operation effect of the rotary tillage device. Summary of the Utility Model

[0006] Aiming at the deficiencies of the existing technology, the utility model provides a rotary tillage device with good operation quality, high operation efficiency, long service life, stability, and easy operation.

[0007] The present utility model is realized through the following technical solutions. A rotary tillage device is provided, which includes a first mounting component and a second working component. Rotary tillage blades are respectively provided at both ends of the first mounting component. First working components are respectively provided at both ends of the first mounting component. The first working components are connected to the rotary tillage blades, and the second working component is connected to the first working component.

[0008] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the first working component and the second working component, the rotary tillage device can be supported.

[0009] Firstly, through the second working component, when the rotary tillage device is working, it can prevent sundries such as weeds and straws in the soil from winding around the rotary tillage blades, and greatly reduce the situation that the rotary tillage blades are wrapped by soil. Furthermore, it increases the ability of the rotary tillage blades to break the soil and the depth of penetration into the soil, improves the operation efficiency and operation quality of the rotary tiller, and at the same time reduces the increase in the movement resistance of the rotary tillage blades due to the influence of weed winding and soil wrapping, thereby reducing the fuel consumption of the rotary tiller, lowering the operation cost of rotary tillage. In addition, it can also avoid the rotary tillage device from bearing additional stress and friction, prevent problems such as abnormal wear, deformation, and fracture of the rotary tillage device, and improve the service life of the rotary tillage device.

[0010] Secondly, through the first working component and the second working component, when the rotary tillage device is working, since the first working component is always in the soil and in contact with the soil, and the second working component can structurally support the first working component, the structure of the rotary tillage device can be made more stable, reducing the phenomena such as swinging and jumping of the rotary tillage blades in the rotary tillage device due to uneven force, thereby improving the stability of the rotary tillage device and making the rotary tillage device easier to operate.

[0011] Preferably, second mounting components are respectively provided at both ends of the first mounting component. The rotary tillage blades at both ends of the first mounting component are connected to the second mounting components. The second mounting component includes a third connecting portion connected to the first mounting component and a fourth connecting portion buckled with the third connecting portion. The fourth connecting portion is connected and fixed to the third connecting portion through a first fixing component.

[0012] Preferably, at least one first mounting groove is provided in the radial direction of the second mounting component along the first mounting component.

[0013] The beneficial effects of adopting the above preferred technical solution are as follows: By using the first mounting groove, the blade body of the rotary tillage blade can be placed therein. Since the third connecting portion and the fourth connecting portion are buckled together, the rotary tillage blade can be conveniently placed or taken out from the first inner cavity.

[0014] Preferably, it further includes a third mounting member connected to the first mounting member, and the third mounting member is connected to the rotary tillage blade through a second fixing member.

[0015] Preferably, a plurality of third mounting members are arranged along the axial direction of the first mounting member, and there is an included angle between any two adjacent third mounting members.

[0016] The beneficial effects of adopting the above preferred technical solution are as follows: Since a plurality of third mounting members are arranged along the axial direction of the first mounting member, and there is an included angle between any two adjacent third mounting members, the rotary tillage blades enter the soil sequentially for crushing during operation instead of simultaneously, thereby reducing the soil rebound force received by the rotary tillage device, reducing the occurrence of situations such as the rotary tillage device swaying and jumping, improving the stability of the rotary tillage device, enabling the rotary tillage device to work more smoothly. At the same time, since the occurrence of situations such as the rotary tillage device swaying and jumping is reduced, the operation quality of the rotary tillage device can be improved. In addition, the rotary tillage blades enter the soil sequentially, which can reduce the impact force received by the rotary tillage device, enabling the rotary tillage device to have a longer service life under the same structural strength.

[0017] Preferably, the third mounting member is provided with a second mounting groove, and the second mounting groove is provided with a first opening.

[0018] Preferably, the rotary tillage blade includes a crushing part, and the perpendicular distance from the crushing part of the rotary tillage blade to the axis of the first mounting member is greater than the perpendicular distance from the outer edge of the first working member to the axis of the first mounting member.

[0019] The beneficial effects of adopting the above preferred technical solution are as follows: Since the perpendicular distance from the crushing part of the rotary tillage blade to the axis of the first mounting member is greater than the perpendicular distance from the outer edge of the first working member to the axis of the first mounting member, the first working member can be prevented from interfering with the normal soil crushing operation of the crushing part of the rotary tillage blade.

[0020] Preferably, the second working member is connected to the side surface of the first working member, the first working member is circular, and the perpendicular distance from any point of the second working member to the axis of the first mounting member is not greater than the perpendicular distance from the outer edge of the first working member to the axis of the first mounting member.

[0021] Preferably, the first working member is polygonal.

[0022] Preferably, the cross-section of the second working member is circular or L-shaped.

[0023] Preferably, the first mounting member is of a hollow or solid structure, and the cross-section of the first mounting member is circular or regular polygonal.

[0024] The present utility model also provides a rotary tiller or a straw crusher, including the rotary tilling device described in any one of the above.

[0025] Compared with the prior art, the beneficial effects of the present utility model are as follows: By applying the above rotary tilling device, the rotary tiller or the like of the present technical solution can not only improve the soil breaking, straw crushing effect and tillage quality, but also prevent weed entanglement, thereby improving the operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a structural schematic diagram of the present utility model;

[0027] Figure 2 is a structural schematic diagram of the second mounting member and the third mounting member in the present utility model;

[0028] Figure 3 is a structural schematic diagram of the rotary tilling blade in the present utility model;

[0029] As shown in the figure:

[0030] 1, the first mounting member, 2, the second mounting member, 3, the third mounting member, 4, the rotary tilling blade, 5, the first working member, 6, the second working member;

[0031] 101, the first mounting hole, 102, the second mounting hole;

[0032] 201, the third connecting portion, 202, the fourth connecting portion, 203, the first fixing member, 204, the first mounting groove;

[0033] 301, the second mounting groove, 302, the second fixing member, 303, the first opening, 304, the second opening;

[0034] 401, the first connecting portion, 402, the second connecting portion, 403, the crushing portion, 404, the third mounting hole, 405, the fourth mounting hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0036] Embodiment 1:

[0037] Such as Figures 1-3A rotary tillage device shown includes a first mounting member 1, a second mounting member 2, and a rotary tillage blade 4. One end, and / or both ends, of the first mounting member 1 are provided with first mounting holes 101. Second mounting holes 102 are provided along the radial direction of the first mounting member 1. The output shaft of the transmission device of the rotary tiller is inserted into the first mounting holes 101 and fixed to the first mounting member 1 through the second mounting holes 102, so that the output shaft of the transmission device of the rotary tiller can drive the first mounting member 1 to rotate;

[0038] The rotary tillage blade 4 includes a first connecting portion 401, a second connecting portion 402, and a crushing portion 403. The first connecting portion 401 and the second connecting portion 402 are the blade body portions of the rotary tillage blade 4, and the crushing portion 403 is the blade tip portion of the rotary tillage blade 4. The first connecting portion 401 is provided with a third mounting hole 404, and the second connecting portion 402 is provided with a fourth mounting hole 405. Both the third mounting hole 404 and the fourth mounting hole 405 penetrate the rotary tillage blade 4 along the width direction of the rotary tillage blade 4. The second connecting portion 402 is provided with an arc-shaped curved surface, and the crushing portion 403 is a triangular structure;

[0039] Both ends of the first mounting member 1 are respectively provided with second mounting members 2. The second mounting member 2 includes a third connecting portion 201 and a fourth connecting portion 202. The third connecting portion 201 is fixedly connected to the first mounting member 1. The fourth connecting portion 202 is buckled on the third connecting portion 201 and connected and fixed to the third connecting portion 201 through a first fixing member 203. After the fourth connecting portion 202 is buckled with the third connecting portion 201, a first mounting groove 204 is formed. The second mounting member 2 is provided with at least one first mounting groove 204 along the radial direction of the first mounting member 1. In this embodiment, preferably, the second mounting member 2 is provided with 3 first mounting grooves 204. The third mounting hole 404 of the rotary tillage blade 4 is adapted to the first fixing member 203. Therefore, when the rotary tillage blade 4 is placed in the first mounting groove 204, the first fixing member 203 passes through the third mounting hole 404, and the third connecting portion 201 and the fourth connecting portion 202 are connected and fixed through the first fixing member 203, so that the rotary tillage blade 4 can be firmly mounted and fixed in the first mounting groove 204 of the second mounting member 2;

[0040] A plurality of third mounting members 3 are uniformly arranged along the axial direction of the first mounting member 1. One end of the third mounting member 3 is connected to the outer surface of the first mounting member 1. Along the radial direction of the first mounting member 1, there is the same included angle between any two adjacent third mounting members 3. The third mounting member 3 is fixedly connected to the first mounting member 1. The third mounting member 3 is provided with a second mounting groove 301. The third mounting member 3 is connected with a second fixing member 302 adapted to the third mounting hole 404. A first opening 303 is provided on the side surface of the second mounting groove 301. A second opening 304 is provided at the end of the second mounting groove 301 far from the first mounting member 1. When the rotary tillage blade 4 is placed in the second mounting groove 301, the first opening 303 is located on one side of the crushing part 403 of the rotary tillage blade 4. The second mounting groove 301 is provided with a side wall on the opposite side of the first opening 303. Therefore, when the rotary tillage device is working, the side wall of the second mounting groove 301 can play a role in supporting and limiting the rotary tillage blade 4, preventing relative rotation between the rotary tillage blade 4 and the third mounting member 3;

[0041] First working members 5 are respectively arranged at both ends of the first mounting member 1. All the rotary tillage blades 4 connected to the second mounting member 2 are connected to the first working member 5 through the fourth mounting holes 405. The outer contour of the first working member 5 can be any shape such as a circular ring or a polygon. In this embodiment, preferably, the outer contour of the first working member 5 is a circular ring. An opening is provided in the middle of the first working member 5 for the output shaft of the rotary tillage machine transmission device to pass through. The perpendicular distance from the crushing part 403 of the rotary tillage blade 4 to the axis of the first mounting member 1 is greater than the perpendicular distance from the outer edge of the first working member 5 to the axis of the first mounting member 1;

[0042] A second working member 6 is arranged between the first working members 5 at both ends of the first mounting member 1. Both ends of the second working member 6 are respectively connected to the first working members 5 at both ends of the first mounting member 1. At least one second working member 6 is provided on the side surface of the first working member 5 along the radial direction of the first working member 5. In this embodiment, preferably, three second working members 6 are provided on the side surface of the first working member 5 along the radial direction of the first working member 5. The cross-section of the second working member 6 can be a circular shape, an L-shaped shape or other shapes with the same or similar functions. In this embodiment, preferably, the cross-section of the second working member 6 is a circular shape. The perpendicular distance from any point of the second working member 6 to the axis of the first mounting member 1 is not greater than the perpendicular distance from the outer edge of the first working member 5 to the axis of the first mounting member 1;

[0043] The perpendicular distance from the tip of all the rotary tillage blades 4 to the axis of the first mounting member 1 is the same, and the crushing parts 403 of all the rotary tillage blades 4 face the same direction on the rotary tillage device;

[0044] The first mounting member 1 has a solid or hollow structure. In this embodiment, preferably, the first mounting member 1 has a hollow structure. The cross-section of the first mounting member 1 is circular or a regular polygon such as a triangle, a square, or a regular hexagon. In this embodiment, preferably, the cross-section of the first mounting member 1 is a regular hexagon.

[0045] This embodiment also provides a rotary tiller or a straw crusher applying the above rotary tillage device, specifically, it can be a rotary tiller which includes the rotary tillage device. In addition to the rotary tiller, it can also be applied to weeding equipment, and no specific examples are given here.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rotary tillage device, characterized in that: The invention comprises a first mounting component (1) and a second working component (6), wherein both ends of the first mounting component (1) are respectively provided with a rotary tiller (4), and both ends of the first mounting component (1) are respectively provided with a first working component (5), the first working component (5) is connected to the rotary tiller (4), and the second working component (6) is connected to the first working component (5).

2. A rotary tillage device according to claim 1, characterized in that: A second mounting component (2) is provided at each of the two ends of the first mounting component (1); the rotary tiller blades (4) at the two ends of the first mounting component (1) are connected to the second mounting component (2); the second mounting component (2) comprises a third connecting portion (201) connected to the first mounting component (1); and a fourth connecting portion (202) buckled with the third connecting portion (201); the fourth connecting portion (202) is connected and fixed to the third connecting portion (201) via a first fixing component (203).

3. A rotary tillage device according to claim 2, characterized in that: The second mounting component (2) is provided with at least one first mounting groove (204) along the radial direction of the first mounting component (1).

4. A rotary tillage device according to claim 1, characterized in that: It also comprises a third mounting component (3) connected to the first mounting component (1), wherein the third mounting component (3) is connected to the rotary tiller (4) via a second fixing component (302).

5. A rotary tillage device according to claim 1, characterized in that: A plurality of third mounting components (3) are provided along the axial direction of the first mounting component (1), and an angle exists between any two adjacent third mounting components (3).

6. A rotary tillage device according to claim 4 or 5, characterized in that: The third mounting component (3) is provided with a second mounting groove (301), and the second mounting groove (301) is provided with a first opening (303).

7. A rotary tillage device according to claim 1, characterized in that: The rotary tiller (4) comprises a crushing portion (403), and a vertical distance from the crushing portion (403) of the rotary tiller (4) to the axis of the first mounting component (1) is greater than a vertical distance from the outer edge of the first working component (5) to the axis of the first mounting component (1).

8. The rotary tillage device according to claim 1, characterized in that: The second working component (6) is connected to the side surface of the first working component (5); the first working component is in the shape of a ring; the vertical distance from any point of the second working component to the axis of the first mounting component is not greater than the vertical distance from the outer edge of the first working component to the axis of the first mounting component.

9. A rotary tillage device according to claim 1, characterized in that: The first working component (5) is a polygon.

10. The rotary tillage device according to claim 1, characterized in that: The cross section of the second working component (6) is circular, L-shaped or V-shaped.

11. A rotary tillage device according to claim 1, characterized in that: The first mounting component (1) is a hollow or solid structure, and the cross section of the first mounting component (1) is a circle or a regular polygon.

12. A rotary tiller, characterized in that: A rotary tillage device comprising any one of claims 1 to 11.

13. A grass chopper, characterized in that: A rotary tillage device comprising any one of claims 1 to 11.

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