Anti-abrasion protection device for blade of rotary cultivator

Abstract

The utility model discloses a rotary cultivator blade anti-wear protection device which comprises a machine frame, a supporting rod and a telescopic assembly, a speed changer is installed on the upper surface of the machine frame, a rotary blade in transmission connection with the speed changer is rotatably installed in the machine frame, and the supporting rod is connected to the side face of the machine frame. An adjusting rod is rotatably mounted on the lower surface of the rack through a bolt, a plow frame is fixedly connected to the lower surface of the adjusting rod, a plow body is movably mounted on the plow frame, and the telescopic assembly is movably mounted between the supporting rod and the adjusting rod; a tractor drags the plow body to turn soil firstly, the dry hardness of the soil is reduced, the turned soil is crushed by the rotary blade, when the rotary blade hits hard objects, the rotary blade pushes the hard objects to move in the soil, the resistance of the turned soil is smaller, the degree of hard collision between the rotary blade and the hard objects is reduced, abrasion of the rotary blade is relieved, and the rotary blade is protected. And the rotary blade can also be prevented from being broken by hard objects.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary tillers, in particular to a rotary tiller blade anti-wear protection device. Background Art

[0002] When the blades of existing rotary tillers encounter hard objects such as bricks, stones, and metals, they may wear and break. After the blades break, the tillage effect decreases. When two or more blades break, the tillage function basically disappears and new blades must be replaced before it can work again.

[0003] In order to solve the above problems, a solution for a rotary tiller blade protection device (Announcement No. CN219577779U) was found through search. After the upper pull rod and the lower pull rod are subjected to force, the force is transmitted to the tension spring through the upper U-shaped block and the lower U-shaped block, and then through the U-shaped bolt. The tension spring stretches a certain length under the action of load to achieve a buffering effect when the rotary tiller is operating, thereby preventing the rotary tiller's blade from breaking.

[0004] However, the rotary tiller itself has a certain weight. When the rotary tiller encounters a hard object, due to the weight of the rotary tiller itself and the resistance of the ground, one of the cutters of the rotary tiller hits the hard object and then buffers it. The cutter that hits the hard object needs to support the entire rotary tiller for buffering. The cutter bears a large weight, and coupled with the force of the cutter's rotation, the cutter is prone to increased wear and deformation. Utility Model Content

[0005] The purpose of the utility model is to provide a rotary tiller blade anti-wear protection device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a rotary tiller blade anti-wear protection device, comprising a frame, a transmission mounted on the upper surface of the frame, and a rotary tiller blade rotatably mounted inside the frame and connected to the transmission;

[0007] A support rod is connected to the side of the frame, an adjustment rod is rotatably installed on the lower surface of the frame through a latch, a plow frame is fixedly connected to the lower surface of the adjustment rod, and a plow body is movably installed on the plow frame;

[0008] The telescopic component is movably installed between the support rod and the adjusting rod. The telescopic component is used to drive the support rod and the plow body to rotate, thereby changing the angle of the plow body. The soil turned over by the plow body is broken up by the rotary blade to protect the rotary blade. When there are hard objects in the soil and the rotary blade hits the hard objects, the hard objects can move in the soil with little resistance, thereby avoiding excessive wear of the rotary blade.

[0009] Furthermore, the transmission and the frame surface are both installed with a first articulated seat, the upper surface of the support rod is fixedly connected to an assembly rod, and an auxiliary frame is rotatably installed between the first articulated seat and the assembly rod, which can be smoothly and stably connected to the tractor.

[0010] Furthermore, the plow body is a V-shaped movable structure, and an adjustment seat is movably installed on the surface of the plow body. The adjustment seat changes the opening and closing angle of the plow body. The opening and closing angle of the plow body can be changed according to the traction force of the tractor and the hardness of the soil, making it more flexible to use.

[0011] Furthermore, an arc-shaped orifice plate is fixedly connected to the surface of the plow frame, and the arc-shaped orifice plate is screwed to the plow body through a first handle bolt. Turning the first handle bolt changes the connection position of the plow body and the arc-shaped orifice plate, changes the inclination angle of the plow body, and guides the direction of turning over the soil.

[0012] Furthermore, a second hinged seat is provided on the upper surface of the frame, and an inspection cover is installed on the second hinged seat through a shaft. The inspection cover can be opened to clean the rotary tiller. A connecting piece is provided on the surface of the inspection cover, and a second handle screw threaded with the frame is inserted on the surface of the connecting piece. An anti-loss bolt is threaded on the surface of the second handle screw to prevent the second handle screw from falling off the connecting piece.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) The tractor pulls the plow body to turn over the soil first, reducing the dry hardness of the soil. The turned over soil is broken by the rotary tiller. When the rotary tiller hits a hard object, the rotary tiller pushes the hard object to move in the soil. The turned over soil has less resistance, reducing the degree of hard collision between the rotary tiller and the hard object, alleviating the wear of the rotary tiller, and also preventing the rotary tiller from being broken by the hard object.

[0015] (2) The rotation of the threaded tube can change the angle of the support rod and the adjusting rod. The adjusting rod drives the plow body to tilt. Changing the angle of the plow body can adjust the direction of soil turning over. Using the adjusting seat can change the opening and closing angle of the plow body and change the turning range of the plow body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a side view of the utility model;

[0017] Figure 2 This is a top cross-sectional view of the connection between the plow body and the plow frame of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the connection between the support rod and the adjustment rod of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the connection between the frame and the inspection cover of the utility model;

[0020] Figure 5 This is a structural diagram of the connection between the second handle screw and the anti-lost bolt of the utility model.

[0021] In the figure: 1. Frame; 2. Rotary tiller blade; 3. Spinning shaft; 4. Inspection cover; 5. Transmission; 6. Second articulated seat; 7. Connecting plate; 8. Second handle screw; 9. Anti-lost bolt; 10. First articulated seat; 11. Auxiliary frame; 12. Support rod; 13. Assembly rod; 14. Transmission box; 15. Positioning seat; 16. Latch; 17. Adjusting rod; 18. Plow frame; 19. Plow body; 20. Adjusting seat; 21. Arc-shaped orifice plate; 22. First handle bolt; 23. Threaded pipe; 24. Screw; 25. Connector. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example:

[0024] See also Figure 1-5 The utility model provides a technical solution: a rotary tiller blade anti-wear protection device, comprising a frame 1, a transmission 5 is mounted on the upper surface of the frame 1, a rotary tiller blade 2 connected to the transmission 5 is rotatably mounted inside the frame 1, and the transmission 5 drives the rotary tiller blade 2 to rotate and break up the soil;

[0025] A support rod 12 is connected to the side of the frame 1. An adjusting rod 17 is rotatably mounted on the lower surface of the frame 1 through a latch 16. A plow frame 18 is fixedly connected to the lower surface of the adjusting rod 17. A plow body 19 is movably mounted on the plow frame 18. Rotating the adjusting rod 17 can change the inclination of the plow body 19 and guide the direction of soil turning out.

[0026] The telescopic component is movably installed between the support rod 12 and the adjusting rod 17. The telescopic component is used to drive the support rod 12 and the plow body 19 to rotate, thereby changing the angle of the plow body 19. The soil turned over by the plow body 19 is broken up by the rotary tiller 2. If there are hard objects in the soil, the rotary tiller 2 can push the hard objects in the soil more easily, preventing the rotary tiller 2 from colliding with the hard objects, thereby protecting the rotary tiller 2.

[0027] In this embodiment, if Figure 1As shown, the surfaces of the transmission 5 and the frame 1 are both installed with a first articulated seat 10, the upper surface of the support rod 12 is fixedly connected with an assembly rod 13, an auxiliary frame 11 is rotatably installed between the first articulated seat 10 and the assembly rod 13, the support rod 12 and the assembly rod 13 are connected to the tractor, so that the tractor can drag the plow body 19 and the rotary blade 2 forward.

[0028] In this embodiment, if Figure 1 As shown, the transmission 5 is connected to the transmission box 14 on the side, and the transmission box 14 has a certain length to ensure that the tractor can smoothly drive the rotary blade 2 to rotate.

[0029] In this embodiment, if Figure 1 As shown, a positioning seat 15 is installed between the transmission box 14 and the support rod 12 to support the transmission box 14 and prevent the transmission box 14 from moving and deforming.

[0030] In this embodiment, if Figure 2 As shown, the plow body 19 is a V-shaped movable structure. An adjustment seat 20 is movably installed on the surface of the plow body 19. The adjustment seat 20 changes the opening and closing angles of the plow body 19. The adjustment seat 20 has screws, nuts and several round holes. The screws are inserted into different round holes to smoothly adjust the opening and closing angles of the plow body 19.

[0031] In this embodiment, if Figure 2 As shown, an arc-shaped orifice plate 21 is fixedly connected to the surface of the plow frame 18, and the arc-shaped orifice plate 21 is screwed to the plow body 19 through a first handle bolt 22. The first handle bolt 22 is screwed to holes at different positions on the arc-shaped orifice plate 21, and the angle of the plow body 19 can be fine-tuned to change the inclination angle of the plow body 19, guide the direction of turning over the soil, and is more flexible to use.

[0032] In this embodiment, if Figure 1 and Figure 3 As shown, the telescopic assembly includes a threaded tube 23 and a screw 24 screwed to the threaded tube 23. A connector 25 is rotatably installed at the end of the screw 24. The connector 25 is rotatably connected to the support rod 12. The rotation of the threaded tube 23 can change the combined length of the threaded tube 23 and the screw 24, thereby realizing the angle adjustment of the adjustment rod 17 and greatly adjusting the turning direction of the plow body 19.

[0033] In this embodiment, if Figure 4 As shown, a second hinged seat 6 is provided on the upper surface of the frame 1, and an inspection cover 4 is installed on the second hinged seat 6 by rotating through the plug shaft 3. A connecting piece 7 is provided on the surface of the inspection cover 4, and a second handle screw 8 screwed to the frame 1 is inserted on the surface of the connecting piece 7. The inspection cover 4 can be opened by loosening the second handle screw 8, which is convenient for cleaning the soil on the rotary blade 2.

[0034] In this embodiment, if Figure 5 As shown, an anti-lost bolt 9 is screwed onto the surface of the second handle screw 8. After the second handle screw is loosened, the anti-lost bolt 9 can prevent the second handle screw from falling off the connecting piece 7.

[0035] Specifically, when in use, the support rod 12 and the assembly rod 13 are connected to the tractor, and the transmission box 14 is connected to the tractor. When the tractor moves forward, several plow bodies 19 first loosen the soil to make the soil soft. When the rotary tiller 2 rotates to crush the soil, if the rotary tiller 2 encounters a hard object, the hard object is more easily pushed in the loosened soil, reducing the collision strength between the hard object and the rotary tiller 2, alleviating the wear and deformation problems of the rotary tiller 2, and extending the service life of the rotary tiller 2.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary tiller blade anti-wear protection device, characterized in that: include: A frame (1), a transmission (5) being mounted on the upper surface of the frame (1), and a rotary tiller (2) being rotatably mounted inside the frame (1) and being transmission-connected to the transmission (5); A support rod (12), the support rod (12) is connected to the side of the frame (1), an adjustment rod (17) is rotatably mounted on the lower surface of the frame (1) via a latch (16), a plow frame (18) is fixedly connected to the lower surface of the adjustment rod (17), and a plow body (19) is movably mounted on the plow frame (18); A telescopic assembly is movably mounted between a support rod (12) and an adjusting rod (17). The telescopic assembly is used to drive the support rod (12) and the plow body (19) to rotate, thereby changing the angle of the plow body (19). The soil turned over by the plow body (19) is broken up by the rotary tiller (2) to protect the rotary tiller (2).

2. The rotary tiller blade anti-wear protection device according to claim 1, characterized in that: A first hinge seat (10) is installed on the surface of the transmission (5) and the frame (1); an assembly rod (13) is fixedly connected to the upper surface of the support rod (12); and an auxiliary frame (11) is rotatably installed between the first hinge seat (10) and the assembly rod (13).

3. The rotary tiller blade anti-wear protection device according to claim 1, characterized in that: The transmission (5) is connected to a transmission box (14) on the side thereof.

4. The rotary tiller blade anti-wear protection device according to claim 3, characterized in that: A positioning seat (15) is installed between the transmission box (14) and the support rod (12).

5. The rotary tiller blade anti-wear protection device according to claim 1, characterized in that: The plow body (19) is a V-shaped movable structure. An adjustment seat (20) is movably installed on the surface of the plow body (19). The adjustment seat (20) changes the opening and closing angle of the plow body (19).

6. The rotary tiller blade anti-wear protection device according to claim 1, characterized in that: An arc-shaped orifice plate (21) is fixedly connected to the surface of the plow frame (18), and the arc-shaped orifice plate (21) is screwed to the plow body (19) through a first handle bolt (22).

7. The rotary tiller blade anti-wear protection device according to claim 1, characterized in that: The telescopic assembly comprises a threaded tube (23) and a screw rod (24) threadedly connected to the threaded tube (23); a connector (25) is rotatably mounted on the end of the screw rod (24); and the connector (25) is rotatably connected to the support rod (12).

8. The rotary tiller blade anti-wear protection device according to claim 1, characterized in that: The upper surface of the frame (1) is provided with a second hinge seat (6), and the second hinge seat (6) is rotatably mounted with an inspection cover (4) via an insertion shaft (3). The surface of the inspection cover (4) is provided with a connecting piece (7), and the surface of the connecting piece (7) is inserted with a second handle screw (8) that is screwed to the frame (1).

9. The rotary tiller blade anti-wear protection device according to claim 8, characterized in that: An anti-lost bolt (9) is screwed onto the surface of the second handle screw (8).

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