Rotary cultivator with multiple protection structures

Abstract

The utility model relates to the technical field of rotary cultivators, in particular to a rotary cultivator with a multi-protection structure, which comprises a rack and a cutter shaft, a motor is arranged at the top end of the rack, a belt mechanism is arranged between a transmission shaft of the motor and one end of the cutter shaft, a sliding groove is arranged on the surface of the rack, sliding blocks are arranged at two ends of the cutter shaft, and the cutter shaft is arranged in the sliding groove. The sliding block is slidably connected into the sliding groove. The rotary tillage machine has the advantages that after rotary tillage is completed, the sliding block slides towards the top end of the sliding groove and is limited to the top end of the sliding groove, the cutter shaft moves upwards along with the sliding block, blades on the surface of the cutter shaft are all retracted into the range of the machine frame, protection is provided for the blades, and meanwhile when the sliding block slides upwards, the blades are prevented from falling off. The tensioning wheel sliding block automatically slides in the tensioning wheel sliding block groove in the direction away from the sliding groove, the tensioning wheel on the surface of the tensioning wheel sliding block is driven by sliding of the tensioning wheel sliding block to move in the same direction, and when a driven wheel of a belt mechanism on the surface of the sliding block gets close to a driving wheel on the surface of a motor.

Description

Technical Field

[0001] This utility model relates to the field of rotary tiller technology, specifically a rotary tiller with multiple protective structures. Background Technology

[0002] A rotary tiller is a type of tillage machinery that works with a tractor to perform tilling and harrowing operations. It is widely used in agricultural production because of its strong soil-breaking ability and the ability to flatten the ground after tilling.

[0003] In the prior art, a rotary tiller includes a frame, a cutter shaft, and blades. The blades are fixed on the cutter shaft, which is rotatably connected to the frame. A motor is also installed on the frame, and the motor drives the cutter shaft to rotate through a belt mechanism. The cutter shaft drives the blades to rotate, thus tilling the land.

[0004] However, in the existing technology, the blades extend from the bottom of the frame, which makes it convenient for the blades to work on the ground. When transporting the rotary tiller after tilling, the frame cannot protect the blades that extend beyond the frame, making the blades easy to be damaged by hard objects. Utility Model Content

[0005] The purpose of this invention is to provide a rotary tiller with multiple protective structures to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rotary tiller with multiple protective structures, comprising: a frame and a cutter shaft, a motor is provided at the top of the frame, a belt mechanism is provided between the drive shaft of the motor and one end of the cutter shaft, a sliding groove is provided on the surface of the frame, and sliders are provided at both ends of the cutter shaft, the sliders being slidably connected in the sliding groove.

[0007] Preferably, a tension wheel slider groove is formed on the surface of the frame, a tension wheel slider is slidably connected in the tension wheel slider groove, a tension wheel is provided on the surface of the tension wheel slider, and the belt mechanism overlaps on the surface of the tension wheel.

[0008] Preferably, the top of the slider is fixed with a plug-in block, and the inner wall of the top of the groove is provided with a plug-in groove, in which the plug-in block is movably inserted.

[0009] Preferably, a limiting groove is formed on the surface of the plug-in block, and a limiting block mounting groove is formed on the inner wall of the plug-in groove. One end of the limiting block is movably plugged into the limiting block mounting groove, and the other end of the limiting block is movably plugged into the limiting groove.

[0010] Preferably, one end of the limiting block extending into the limiting block mounting groove is fixed with a pull rod and a limiting spring. The pull rod is movably inserted into the surface of the frame, and the other end of the limiting spring is fixed to the inner wall of the limiting block mounting groove. One end of the limiting block extending out of the limiting groove is provided with an inclined surface.

[0011] Preferably, one end of the tension wheel slider extends into the groove, and the end of the tension wheel slider extending into the groove is provided with an inclined surface. The other end of the tension wheel slider is fixed with a tension wheel spring, and the other end of the tension wheel spring is fixed to the inner wall of the tension wheel slider groove.

[0012] Preferably, both ends of the cutter shaft are fixed with lifting rods.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model proposes a rotary tiller with a multi-protection structure. After rotary tilling is completed, the slider slides towards the top of the chute and is then limited to the top of the chute. With the slider fixed at the top of the chute, the cutter shaft moves upward with the slider, causing all the blades on the cutter shaft surface to retract into the frame, providing protection for the blades. Simultaneously, as the slider slides upward, the tension wheel slider automatically slides away from the chute in the tension wheel slider groove. This sliding motion drives the tension wheel on the tension wheel slider surface to move in the same direction. When the driven wheel of the belt mechanism on the slider surface approaches the driving wheel on the motor surface, the movement of the tension wheel on the tension wheel slider surface keeps the belt taut, thus preventing belt slippage. This multi-protection structure of the rotary tiller protects the blades during transport and prevents the belt from slipping. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the present invention.

[0017] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0018] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point B.

[0019] In the diagram: 1. Frame; 2. Cutter shaft; 3. Slide groove; 4. Slider; 5. Connecting block; 6. Connecting slot; 7. Limiting slot; 8. Limiting block mounting slot; 9. Limiting block; 10. Pull rod; 11. Limiting spring; 12. Tensioning wheel slider slot; 13. Tensioning wheel slider; 14. Tensioning wheel spring; 15. Lifting rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example 1: Please refer to Figures 1 to 4 This utility model provides a technical solution: a rotary tiller with multiple protective structures, including: a frame 1 and a cutter shaft 2. A motor is installed at the top of the frame 1, and a belt mechanism is installed between the drive shaft of the motor and one end of the cutter shaft 2. A groove 3 is opened on the surface of the frame 1, and sliders 4 are installed at both ends of the cutter shaft 2. The sliders 4 are slidably connected in the groove 3. A tension wheel slider groove 12 is opened on the surface of the frame 1, and a tension wheel slider 13 is slidably connected in the tension wheel slider groove 12. A tension wheel is installed on the surface of the tension wheel slider 13, and the belt mechanism overlaps the surface of the tension wheel.

[0022] In actual use, after rotary tillage is completed, the slider 4 slides towards the top of the groove 3 and is limited to the top of the groove 3. When the slider 4 is limited to the top of the groove 3, the cutter shaft 2 moves upward with the slider 4, so that all the blades on the surface of the cutter shaft 2 are retracted into the range of the frame 1, providing protection for the blades. At the same time, when the slider 4 slides upward, the tension wheel slider 13 automatically slides away from the groove 3 in the tension wheel slider groove 12. The sliding of the tension wheel slider 13 drives the tension wheel on the surface of the tension wheel slider 13 to move in the same direction. When the driven wheel of the belt mechanism on the surface of the slider 4 approaches the driving wheel on the surface of the motor, the movement of the tension wheel on the surface of the tension wheel slider 13 keeps the belt in a taut state, which plays a role in preventing the belt from loosening. This gives the rotary tiller a multi-protection structure, which protects the blades during transportation and also prevents the belt from loosening.

[0023] Example 2: Based on Example 1, in order to make the slider 4 move upward and be limited to the top of the slide groove 3, the top of the slider 4 is fixed with a plug block 5, the inner wall of the top of the slide groove 3 is provided with a plug groove 6, the plug block 5 is movably inserted into the plug groove 6, the surface of the plug block 5 is provided with a limit groove 7, the inner wall of the plug groove 6 is provided with a limit block mounting groove 8, one end of the limit block 9 is movably inserted into the limit block mounting groove 8, the other end of the limit block 9 is movably inserted into the limit groove 7, the end of the limit block 9 that extends into the limit block mounting groove 8 is fixed with a pull rod 10 and a limit spring 11, the pull rod 10 is movably inserted into the surface of the frame 1, the other end of the limit spring 11 is fixed to the inner wall of the limit block mounting groove 8, the end of the limit block 9 that extends out of the limit groove 7 is provided with an inclined surface, and both ends of the cutter shaft 2 are fixed with lifting rods 15.

[0024] When slider 4 needs to move to the top of slide groove 3, two people need to simultaneously hold both sets of lifting rods 15 and pull them upwards. The lifting rods 15 drive the cutter shaft 2 to move upwards, and the cutter shaft 2 in turn drives slider 4 to slide upwards in slide groove 3. As slider 4 moves, the insertion block 5 gradually inserts into the insertion groove 6. During the movement of insertion block 5, insertion block 5 first contacts the inclined surface of limit block 9, pushing limit block 9 completely into limit block mounting groove 8, causing limit spring 11 to be compressed. When slider 4 moves to slide groove 3... After the top is reached, the plug block 5 is fully inserted into the plug slot 6. At this time, the limiting block mounting slot 8 is aligned with the limiting slot 7. Under its own elasticity, the limiting spring 11 pushes one end of the limiting block 9 into the limiting slot 7, thereby limiting the plug block 5 in the plug slot 6, and thus limiting the slider 4 to the high point of the slide groove 3. When it is necessary to release the limit, simply pull the lever 10 outward. The lever 10 will drive the limiting block 9 out of the limiting slot 7 to release the limit, allowing the slider 4 to slide freely to the bottom of the slide groove 3.

[0025] Example 3: Based on Example 2, in order to enable the tension wheel slider 13 to move automatically away from the slide groove 3, one end of the tension wheel slider 13 extends into the slide groove 3, and the end of the tension wheel slider 13 extending into the slide groove 3 is provided with an inclined surface. The other end of the tension wheel slider 13 is fixed with a tension wheel spring 14, and the other end of the tension wheel spring 14 is fixed on the inner wall of the tension wheel slider groove 12.

[0026] When slider 4 moves upward, it contacts the inclined surface of tension wheel slider 13, thereby pushing tension wheel slider 13 completely into tension wheel slider groove 12, so that tension wheel slider 13 automatically moves away from groove 3. At this time, tension wheel spring 14 is compressed. When slider 4 moves downward in groove 3, tension wheel spring 14 exerts a pushing force on tension wheel slider 13 under its own elasticity, which can make tension wheel slider 13 automatically return to its original position.

[0027] In actual use, after rotary tillage is completed, the slider 4 slides towards the top of the groove 3 and is limited to the top of the groove 3. When the slider 4 is limited to the top of the groove 3, the cutter shaft 2 moves upward with the slider 4, causing all the blades on the surface of the cutter shaft 2 to retract into the range of the frame 1, providing protection for the blades. Simultaneously, as the slider 4 slides upward, the tension wheel slider 13 automatically slides away from the groove 3 in the tension wheel slider groove 12. The sliding of the tension wheel slider 13 drives the tension wheel on the surface of the tension wheel slider 13 to move in the same direction. The driven wheel of the belt mechanism on the surface of the slider 4 moves in the same direction... When the drive wheel on the motor surface approaches, the movement of the tension wheel on the tension wheel slider 13 keeps the belt taut, thus preventing the belt from slipping. This gives the rotary tiller multiple protective structures, protecting the blades during transport and preventing the belt from slipping. When the slider 4 needs to move to the top of the slide groove 3, two people need to simultaneously hold the two sets of lifting rods 15 and pull upwards. The lifting rods 15 drive the cutter shaft 2 upwards, which in turn drives the slider 4 to slide upwards in the slide groove 3. As the slider 4 moves, the insertion block 5 gradually inserts. When the plug-in block 5 moves, it first contacts the inclined surface of the limiting block 9, pushing the limiting block 9 completely into the limiting block mounting groove 8, thus compressing the limiting spring 11. When the slider 4 moves to the top of the slide groove 3, the plug-in block 5 is also fully inserted into the plug-in groove 6. At this time, the limiting block mounting groove 8 is aligned with the limiting groove 7. Under its own elasticity, the limiting spring 11 pushes one end of the limiting block 9 into the limiting groove 7, thereby limiting the plug-in block 5 in the plug-in groove 6, thus limiting the slider 4 to the high point of the slide groove 3. When it is necessary to release the limit, simply pull the lever outward. Rod 10, pull rod 10 drives the limiting block 9 out of the limiting groove 7 to release the limiting, allowing the slider 4 to slide freely to the bottom of the slide groove 3; when the slider 4 moves upward, the slider 4 contacts the inclined surface of the tension wheel slider 13, thereby pushing the tension wheel slider 13 completely into the tension wheel slider groove 12, so that the tension wheel slider 13 automatically moves away from the slide groove 3, at which time the tension wheel spring 14 is compressed; when the slider 4 moves downward in the slide groove 3, the tension wheel spring 14, under its own elasticity, generates a pushing force on the tension wheel slider 13, which can make the tension wheel slider 13 automatically return to its original position.

[0028] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary tiller with multiple protective structures, comprising: The frame (1) and the cutter shaft (2) are provided. A motor is provided at the top of the frame (1). A belt mechanism is provided between the drive shaft of the motor and one end of the cutter shaft (2). The frame (1) has a groove (3) on its surface. The cutter shaft (2) has sliders (4) at both ends. The sliders (4) are slidably connected in the groove (3).

2. A rotary tiller with multiple protective structures according to claim 1, characterized in that: The frame (1) has a tension wheel slider groove (12) on its surface. A tension wheel slider (13) is slidably connected in the tension wheel slider groove (12). A tension wheel is provided on the surface of the tension wheel slider (13). The belt mechanism overlaps on the surface of the tension wheel.

3. A rotary tiller with a multi-protection structure according to claim 2, characterized in that: The top of the slider (4) is fixed with a plug-in block (5), and the inner wall of the top of the groove (3) is provided with a plug-in groove (6), and the plug-in block (5) is movably inserted into the plug-in groove (6).

4. A rotary tiller with a multi-protection structure according to claim 3, characterized in that: A limiting groove (7) is formed on the surface of the plug-in block (5), and a limiting block mounting groove (8) is formed on the inner wall of the plug-in groove (6). One end of the limiting block (9) is movably inserted into the limiting block mounting groove (8), and the other end of the limiting block (9) is movably inserted into the limiting groove (7).

5. A rotary tiller with a multi-protection structure according to claim 4, characterized in that: The end of the limiting block (9) that extends into the limiting block mounting groove (8) is fixed with a pull rod (10) and a limiting spring (11). The pull rod (10) is movably inserted into the surface of the frame (1). The other end of the limiting spring (11) is fixed to the inner wall of the groove of the limiting block mounting groove (8). The end of the limiting block (9) that extends out of the limiting groove (7) is provided with an inclined surface.

6. A rotary tiller with a multi-protection structure according to claim 5, characterized in that: One end of the tension wheel slider (13) extends into the slide groove (3), and the end of the tension wheel slider (13) extending into the slide groove (3) is provided with an inclined surface. The other end of the tension wheel slider (13) is fixed with a tension wheel spring (14), and the other end of the tension wheel spring (14) is fixed on the inner wall of the tension wheel slider groove (12).

7. A rotary tiller with a multi-protection structure according to claim 1, characterized in that: Both ends of the cutter shaft (2) are fixed with lifting rods (15).

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