Multifunctional farming rotary cultivator

Abstract

The utility model discloses a multifunctional farming rotary cultivator which comprises a working frame, a cutter shaft and a driving shaft are rotationally arranged on the working frame, a cutter is arranged on the cutter shaft, a mounting block is arranged on the cutter, a clamping block is arranged on the cutter shaft in the circumferential direction, first clamping grooves are formed in the two sides of the mounting block, a second clamping groove is formed in the mounting block in the circumferential direction, and a mounting plate is arranged on the second clamping groove. Mounting bolts are arranged among the mounting plate, the mounting blocks and the clamping blocks, the clamping blocks are matched with the first clamping grooves through matching of the clamping blocks and the first clamping grooves, the mounting blocks and the cutter shaft are matched through matching of the second clamping grooves and the mounting plate, the connecting stability between the mounting blocks is improved, the cutter is mounted on the cutter shaft through the mounting bolts, the cutter is convenient to mount and dismount, and meanwhile the cutter is convenient to mount and dismount. Torque generated when the cutter shaft drives the cutter to rotate is transmitted to the clamping block and the mounting block, and abrasion of mounting bolts is reduced.

Description

A multi-functional rotary tiller for farming Technical Field

[0001] This utility model relates to the field of rotary tiller technology, and more specifically, to a multi-functional rotary tiller for agricultural use. Background Technology

[0002] As a core tillage equipment in agricultural production, the ease of maintenance of rotary tillers directly affects operational efficiency and operating costs. Currently, my country has more than 200 million agricultural machines, but the annual failure rate of rotary tillers is still as high as 15%-20%, of which more than 40% are due to inconvenient maintenance. Especially in remote areas, professional maintenance services are insufficient, farmers have difficulty maintaining the machines themselves, and the idle rate of the equipment has increased significantly.

[0003] When using rotary tillers, the blades are generally directly connected to the cutter shaft via bolts. When the cutter shaft drives the blades to rotate, the bolts not only serve as the connection between the cutter shaft and the blades, but also bear the torque generated when the cutter shaft drives the blades to rotate. This can easily cause wear on the bolts and damage to the threads, affecting the connection stability of the blades and making it inconvenient to install and remove the blades. At the same time, the protective cover protects the transmission structure of the cutter shaft, but the protective cover has only one function and cannot lubricate the transmission structure, leading to increased wear on the transmission structure and affecting the service life of the transmission device. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the problems existing in the prior art, this utility model provides a multi-functional rotary tiller for agricultural use, thereby solving the technical problem mentioned in the background art where the blade connection method causes bolt damage, affecting the ease of maintenance.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-functional rotary tiller for agricultural use, comprising a working frame, on which a cutter shaft and a drive shaft are rotatably mounted; a cutter shaft is provided with a cutter; a mounting block is provided on the cutter; a snap-fit ​​block is provided circumferentially on the cutter shaft; first slots are provided on both sides of the mounting block; a second slot is provided circumferentially on the mounting block; a mounting plate is provided in the second slot; mounting bolts are provided between the mounting plate, the mounting block, and the snap-fit ​​block; a transmission sprocket is provided on the cutter shaft and the drive shaft; a transmission chain is provided between the transmission sprockets; a protective cover is fitted on one side of the transmission sprocket and the transmission chain; a support frame is provided on the protective cover; a support box is provided on the support frame; a support wheel is rotatably mounted on the support box; and lubricating oil is provided inside the support box.

[0008] The present invention is further configured such that the support box is symmetrically provided with support rods, the support rods are slidably provided with support blocks, the support box and the support blocks are provided with support springs, and the support wheel is rotatably provided on the support block, so as to facilitate upward support of the support wheel and tension of the transmission chain.

[0009] The present invention is further provided with limiting rings on both sides of the support wheel to restrict the movement of the transmission chain on the support wheel and prevent misalignment of the connection between the transmission chain and the support wheel.

[0010] The present invention is further provided with a brush between the limiting rings to facilitate applying lubricating oil to the transmission chain.

[0011] The present invention is further configured such that a support ring is provided inside the brush, and the support height of the support ring is slightly lower than the height of the brush, so as to prevent the transmission chain from completely damaging the brush.

[0012] The present invention is further configured such that the support frame is hollow inside and communicates with the support box, and an oil injection tank is connected to one side of the support frame, and an oil injection pipe is provided on the oil injection tank to facilitate the injection of lubricating oil into the support box.

[0013] The present invention is further configured such that a moving rod and a moving block are slidably provided on the oil tank, and a connecting groove is provided on the moving block. By aligning or offsetting the connecting groove on the moving block with the oil injection pipe, it is convenient to control the opening and closing of the oil injection pipe and prevent impurities from contaminating the lubricating oil.

[0014] The present invention is further configured such that a moving spring is provided between the oil tank and the moving block, which facilitates the moving block to move and reset.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a multi-functional rotary tiller for farming, which has the following beneficial effects:

[0017] 1. The mounting block and the cutter shaft are engaged by the engagement of the snap-fit ​​block and the first slot. The engagement of the second slot and the mounting plate improves the connection stability between the mounting blocks. The cutter is mounted on the cutter shaft by the mounting bolts. This facilitates the installation and removal of the cutter and transmits the torque of the cutter shaft that drives the cutter to rotate to the snap-fit ​​block and the mounting block, reducing the wear of the mounting bolts.

[0018] 2. By installing support rods, support blocks, support springs, and support wheels inside the support box, the transmission chain is easily supported, so that the transmission sprocket has a continuous tension force, which improves the working stability of the transmission sprocket and transmission chain.

[0019] 3. The protective cover prevents dirt from affecting the transmission chain and sprocket. The sprocket drives the support wheel to rotate, and the support wheel drives the brush to apply lubricating oil to the transmission chain, thereby lubricating the transmission sprocket and the transmission chain and reducing wear between them. This makes the protective cover multifunctional. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the overall structure of a multi-functional rotary tiller for farming according to this utility model;

[0021] Figure 2 is a schematic diagram of the rotary tiller in this utility model after the protective cover is removed;

[0022] Figure 3 is a schematic diagram of the connection structure between the cutter shaft and the cutter in this utility model;

[0023] Figure 4 is a cross-sectional view of the support box and support wheel in this utility model;

[0024] Figure 5 is a cross-sectional view of the oil tank in this utility model.

[0025] In the diagram: 1. Work frame; 2. Cutter shaft; 3. Drive shaft; 4. Cutting tool; 5. Mounting block; 6. Snap-fit ​​block; 7. First slot; 8. Second slot; 9. Mounting plate; 10. Mounting bolt; 11. Transmission sprocket; 12. Transmission chain; 13. Protective cover; 14. Support frame; 15. Support box; 16. Support wheel; 17. Support rod; 18. Support block; 19. Support spring; 20. Limiting ring; 21. Brush; 22. Support ring; 23. Oil tank; 24. Oil pipe; 25. Moving rod; 26. Moving block; 27. Connecting groove; 28. Moving spring. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please refer to Figures 1-5. A multi-functional rotary tiller for farming includes a working frame 1. A cutter shaft 2 and a drive shaft 3 are rotatably mounted on the working frame 1. A cutter 4 is mounted on the cutter shaft 2. A mounting block 5 is mounted on the cutter 4. A snap-fit ​​block 6 is circumferentially mounted on the cutter shaft 2. First slots 7 are provided on both sides of the mounting block 5. A second slot 8 is circumferentially mounted on the mounting block 5. A mounting plate 9 is provided in the second slot 8. Mounting bolts 10 are provided between the mounting plate 9, the mounting block 5, and the snap-fit ​​block 6. A transmission sprocket 11 is mounted on the cutter shaft 2 and the drive shaft 3. A transmission chain 12 is provided between the transmission sprockets 11. A protective cover 13 is fitted on one side of the transmission sprockets 11 and the transmission chain 12. A support frame 14 is provided on the protective cover 13. A support box 15 is provided on the support frame 14. A support wheel 16 is rotatably mounted on the support box 15. Lubricating oil is provided inside the support box 15.

[0030] In this embodiment, when connecting the cutter 4 and the cutter shaft 2, the first slot 7 on the mounting block 5 of the cutter 4 is aligned with the locking block 6 for installation. At the same time, mounting plates 9 are set on the second slots 8 of the two adjacent mounting blocks 5, and the mounting plates 9, mounting blocks 5 and locking blocks 6 are connected and fixed by mounting bolts 10. The mounting blocks 5 and the cutter 4 are installed in sequence around the circumference and axial direction of the cutter shaft 2 to complete the installation of the cutter 4. When the rotary tiller is working, the drive shaft 3 is driven by the motor box and the motor. This is the prior art, and its working principle will not be described in detail. The drive shaft 3 drives the transmission sprocket 11 to rotate. The transmission sprocket 11 drives another transmission sprocket 11 and the cutter shaft 2 to rotate through the transmission chain 12. The cutter shaft 2 drives the cutter 4 to rotate to till the land. When tilling the land, the torque of the cutter 4 is transmitted to the locking block 6 and the first slot 7, thereby reducing the wear of the mounting bolts 10 and extending the service life of the cutter 4.

[0031] Please refer to Figures 4-5. As one embodiment of the support wheel 16: support rods 17 are symmetrically arranged on the support box 15, and support blocks 18 are slidably arranged on the support rods 17. A support spring 19 is provided between the support box 15 and the support block 18. The support wheel 16 is rotatably arranged on the support block 18. Limiting rings 20 are provided on both sides of the support wheel 16. A brush 21 is provided between the limiting rings 20. A support ring 22 is provided inside the brush 21. The support height of the support ring 22 is slightly lower than the height of the brush 21. The support frame 14 is hollow inside and communicates with the support box 15. An oil filling tank 23 is connected to one side of the support frame 14. An oil filling pipe 24 is provided on the oil filling tank 23. A moving rod 25 and a moving block 26 are slidably arranged on the oil filling tank 23. A communicating groove 27 is provided on the moving block 26. A moving spring 28 is provided between the oil filling tank 23 and the moving block 26.

[0032] More specifically, when injecting lubricating oil, pressing down on the moving rod 25 causes the moving block 26 to move downwards and compresses the moving spring 28, aligning the connecting groove 27 with the oil injection pipe 24. A certain amount of lubricating oil is then injected, and the lubricating oil enters the support box 15 through the support frame 14. Releasing the moving rod 25 causes the moving block 26 to reset under the elastic force of the moving spring 28, thus misaligning the connecting groove 27 with the oil injection pipe 24 and preventing external impurities from contaminating the lubricating oil. The support wheel 16 abuts against the lower part of the transmission chain 12, and the support wheel 16 drives the support block 18 to slide downwards along the support rod 17 on the support box 15, pressing down the support spring 19, so that... The support wheel 16 has an upward elastic force supporting the transmission sprocket 11, thereby causing the transmission chain 12 to rotate under tension. At the same time, when the transmission chain 12 rotates, it drives the brush 21 and the support wheel 16 to rotate. The support wheel 16 picks up lubricating oil through the brush 21 and applies it to the transmission chain 12 as the support wheel 16 rotates, which facilitates lubrication between the transmission sprocket 11 and the transmission chain 12. The position of the transmission chain 12 on the support wheel 16 is restricted by the limiting ring 20, and the transmission chain 12 is supported by the support ring 22 to prevent the transmission chain 12 from completely damaging the brush 21, thereby improving the service life of the support wheel 16.

[0033] In summary, during the use or operation of the overall equipment: when connecting the blade 4 and the blade shaft 2, the first slot 7 on the mounting block 5 of the blade 4 is aligned with the locking block 6 for installation. At the same time, mounting plates 9 are set on the second slots 8 of the two adjacent mounting blocks 5, and the mounting plates 9, mounting blocks 5, and locking blocks 6 are connected and fixed by mounting bolts 10. The mounting blocks 5 and blade 4 are installed sequentially around the circumference and axial direction of the blade shaft 2 to complete the installation of the blade 4. When the rotary tiller is working, the drive shaft 3 is driven by the motor box and the motor. This is existing technology, and its working principle will not be elaborated here. The drive shaft 3 drives the transmission sprocket 11 to rotate. The transmission sprocket 11 drives another transmission sprocket 11 and the blade shaft 2 to rotate through the transmission chain 12. The blade shaft 2 drives the blade 4 to rotate, thus tilling the land. During tilling, the torque of the blade 4 is transmitted to the locking block 6 and the first slot 7, thereby reducing the wear of the mounting bolts 10 and extending the service life of the blade 4.

[0034] When injecting lubricating oil, press down on the moving rod 25. The moving rod 25 drives the moving block 26 downward and compresses the moving spring 28, so that the connecting groove 27 is aligned with the oil injection pipe 24. A certain amount of lubricating oil is injected, and the lubricating oil enters the support box 15 through the support frame 14. Release the moving rod 25, and the moving block 26 returns to its original position under the elastic force of the moving spring 28, so that the connecting groove 27 is misaligned with the oil injection pipe 24, thereby preventing external impurities from contaminating the lubricating oil. The support wheel 16 abuts against the bottom of the transmission chain 12. The support wheel 16 drives the support block 18 to slide downward along the support rod 17 on the support box 15 and presses down the support spring 19, so that the support... The support wheel 16 has an upward elastic force supporting the transmission sprocket 11, thereby keeping the transmission chain 12 under tension and rotation. At the same time, when the transmission chain 12 rotates, it drives the brush 21 and the support wheel 16 to rotate. The support wheel 16 picks up lubricating oil through the brush 21 and applies it to the transmission chain 12 as the support wheel 16 rotates, which facilitates lubrication between the transmission sprocket 11 and the transmission chain 12. The limiting ring 20 restricts the position of the transmission chain 12 on the support wheel 16, and the support ring 22 supports the transmission chain 12, preventing the transmission chain 12 from completely damaging the brush 21 and improving the service life of the support wheel 16.

[0035] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0036] In all the solutions mentioned above, the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0037] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise specified, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their electrical connection relationships and specific circuit structures will not be elaborated here.

[0038] Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies, and this utility model will not elaborate on them.

Claims

1. A multi-functional rotary tiller for agricultural use, comprising a working frame (1), characterized in that: The work frame (1) is rotatably equipped with a cutter shaft (2) and a drive shaft (3). The cutter shaft (2) is equipped with a cutter (4), and the cutter (4) is equipped with a mounting block (5). The cutter shaft (2) is circumferentially equipped with a snap-fit ​​block (6). The mounting block (5) is equipped with a first snap-fit ​​groove (7) on both sides. The mounting block (5) is circumferentially equipped with a second snap-fit ​​groove (8). The second snap-fit ​​groove (8) is equipped with a mounting plate (9). A mounting plate (9), the mounting block (5), and the snap-fit ​​block (6) are connected by a mounting plate (9). A bolt (10) is installed. A transmission sprocket (11) is provided on the cutter shaft (2) and the drive shaft (3). A transmission chain (12) is provided between the transmission sprockets (11). A protective cover (13) is fitted on one side of the transmission sprockets (11) and the transmission chain (12). A support frame (14) is provided on the protective cover (13). A support box (15) is provided on the support frame (14). A support wheel (16) is rotatably provided on the support box (15). Lubricating oil is provided inside the support box (15).

2. The multi-functional rotary tiller for agricultural use according to claim 1, characterized in that: The support box (15) is symmetrically provided with support rods (17), and a support block (18) is slidably provided on the support rods (17). A support spring (19) is provided between the support box (15) and the support block (18), and the support wheel (16) is rotatably provided on the support block (18).

3. The multifunctional rotary cultivator according to claim 1, characterized in that: The support wheel (16) is provided with limiting rings (20) on both sides.

4. The multi-functional rotary cultivator according to claim 3, characterized in that: A brush (21) is provided between the limiting rings (20).

5. A multi-functional rotary tiller for agricultural use according to claim 4, characterized in that: The brush (21) has a support ring (22) inside, and the support height of the support ring (22) is slightly lower than the height of the brush (21).

6. A multi-functional rotary tiller for agricultural use according to claim 1, characterized in that: The support frame (14) is hollow inside and communicates with the support box (15). An oil filling tank (23) is connected to one side of the support frame (14), and an oil filling pipe (24) is provided on the oil filling tank (23).

7. A multi-functional rotary tiller for agricultural use according to claim 6, characterized in that: The oil tank (23) is slidably provided with a moving rod (25) and a moving block (26), and the moving block (26) is provided with a connecting groove (27).

8. The multi-functional rotary cultivator according to claim 7, characterized in that: A moving spring (28) is provided between the oil tank (23) and the moving block (26).

Images