Stubble cleaning cutter for rotary cultivator

Abstract

The utility model provides a stubble cleaning cutter for a rotary cultivator, and relates to the technical field of stubble cleaning cutters, the stubble cleaning cutter for the rotary cultivator comprises a mounting plate and a cutter plate, one side of the mounting plate is fixedly connected with one side of the cutter plate, a cutter shaft is arranged on the inner wall of the mounting plate, an auxiliary device is arranged on the outer surface of the mounting plate, the auxiliary device comprises two clamping plates, and the clamping plates are fixedly connected with the cutter shaft. The two clamping plates are arranged on the two sides of the mounting plate respectively, auxiliary grooves are formed in one sides of the clamping plates, the cutter shafts are arranged on the inner walls of the auxiliary grooves, and threaded rods are in threaded connection with the inner walls of the clamping plates. When one sides of the two clamping plates completely abut against one side of the tool rest, auxiliary fixing can be conducted between the mounting plate and the tool rest, connection between the stubble cleaning tool and the tool rest can be prevented from loosening, and normal operation of the rotary cultivator is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of stubble-breaking tools, in particular to a stubble-breaking tool for a rotary tiller. Background Technique

[0002] The final transmission knife shaft of a rotary tiller can be installed with stubble-breaking tools to achieve stubble-breaking operations. The stubble-breaking tool is a tool used to remove plant residues such as straw and stubble, and is mainly applied to the stubble field after harvesting or before plowing. It can loosen the soil layer and prevent the surface from caking, so as to facilitate the subsequent penetration of seeds, fertilizers, etc.

[0003] When installing the stubble-breaking tool, it is necessary to install the tool on the tool holder connected to the knife shaft, usually connected by bolts. However, when the rotary tiller is operating normally, it will drive the stubble-breaking tool to rotate continuously, which may cause the connection between the stubble-breaking tool and the tool holder to become loose, making it inconvenient for the normal operation of the rotary tiller. Content of the Utility Model

[0004] The utility model provides a stubble-breaking tool for a rotary tiller to solve the problem that when the rotary tiller is operating normally, it will drive the stubble-breaking tool to rotate continuously, which may cause the connection between the stubble-breaking tool and the tool holder to become loose, making it inconvenient for the normal operation of the rotary tiller.

[0005] To achieve the above object, the utility model adopts the following technical scheme: A stubble-breaking tool for a rotary tiller includes a mounting plate and a knife plate. One side of the mounting plate is fixedly connected to one side of the knife plate. A knife shaft is arranged on the inner wall of the mounting plate. An auxiliary device is arranged on the outer surface of the mounting plate. The auxiliary device includes two clamping plates, which are respectively arranged on both sides of the mounting plate. An auxiliary groove is formed on one side of the clamping plate. The knife shaft is arranged on the inner wall of the auxiliary groove. A threaded rod is threadedly connected to the inner wall of the clamping plate. One end of the threaded rod is rotatably connected to the inner wall of the mounting plate. A strengthening device is arranged between the knife plate and the mounting plate.

[0006] The effects achieved by the above components are as follows: By setting two clamping plates, under the action of the threaded rod, rotate the threaded rod. When the knife shaft is outside the auxiliary groove, the clamping plate lacks a limit, and the threaded rod will drive the clamping plate to rotate until the knife shaft enters the inner wall of the auxiliary groove. Continuing to rotate the threaded rod, the threaded rod will drive the clamping plate to move towards the mounting plate until one side of the clamping plate is completely abutted against one side of the tool holder, then the auxiliary fixation between the mounting plate and the tool holder can be carried out, which is beneficial to preventing the connection between the stubble-breaking tool and the tool holder from becoming loose and facilitating the normal operation of the rotary tiller.

[0007] Preferably, a manipulation block is arranged at one end of the threaded rod, and protrusions are arranged on the outer surface of the manipulation block.

[0008] The effects achieved by the above components are as follows: By setting the operation block, rotating the operation block can drive the threaded rod to rotate. At the same time, protrusions are provided on the outer surface of the operation block, which can effectively increase the friction on the outer surface of the operation block and play an anti-slip role when rotating the operation block.

[0009] Preferably, one end of the threaded rod is fixedly connected with an auxiliary block, one side of the operation block is fixedly connected with a hexagonal block, and the outer surface of the hexagonal block is inserted into the inner wall of the auxiliary block.

[0010] The effects achieved by the above components are as follows: By setting the auxiliary block and the hexagonal block, inserting the hexagonal block into the inner wall of the auxiliary block can connect the operation block and the threaded rod, and at the same time, it is also convenient to disassemble the operation block, which is beneficial to preventing the protruding operation block from hindering the stubble removal operation of the tool.

[0011] Preferably, a first nut is threadedly connected to the outer surface of the threaded rod, and the first nut is arranged between the auxiliary block and the clamping plate.

[0012] The effects achieved by the above components are as follows: By setting the first nut and rotating the first nut so that one side of the first nut abuts against one side of the clamping plate, the side of the clamping plate can be limited, which is beneficial to preventing the clamping of the clamping plate on the tool holder from loosening.

[0013] Preferably, rubber plates are fixedly connected to the sides of the two clamping plates close to each other, and grooves are evenly arranged on one side of the rubber plates.

[0014] The effects achieved by the above components are as follows: By setting the rubber plates with grooves, the friction on one side of the clamping plate can be increased, making the clamping of the two clamping plates on the tool holder tighter.

[0015] Preferably, the strengthening device includes three strengthening blocks. The two sides of the strengthening block are respectively in contact with one side of the mounting plate and the tool plate, and the cross-section of the strengthening block is triangular.

[0016] The effects achieved by the above components are as follows: By setting the triangular strengthening blocks, the stability of the triangle can be utilized to assist in connecting and strengthening the support between the mounting plate and the tool plate, and the stability of the connection between the mounting plate and the tool plate can be improved.

[0017] Preferably, round hole blocks are fixedly connected to both sides of the strengthening block. A threaded pin is inserted into the inner wall of the round hole block. One ends of the two threaded pins are respectively fixedly connected to one side of the mounting plate and the tool plate, and a second nut is arranged on the outer surface of the threaded pin.

[0018] The effects achieved by the above components are as follows: By setting the threaded pin, sleeving the round hole block on the outer surface of the threaded pin, and then sleeving the second nut on one end of the threaded pin, and rotating the second nut so that one side of the second nut abuts against one side of the round hole block, the fixing between the reinforcing block, the mounting plate and the knife plate can be achieved, and at the same time, it is also convenient to disassemble and replace the damaged reinforcing block.

[0019] Preferably, a gasket is provided between the second nut and the round hole block, and the outer surface of the threaded pin is inserted into the inner wall of the round hole block.

[0020] The effects achieved by the above components are as follows: By setting the gasket, it can replace the abutment of one side of the second nut against one side of the round hole block, which is beneficial to preventing the second nut from loosening.

[0021] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0022] In the present utility model, by setting two clamping plates, under the action of the threaded rod, the threaded rod can drive the clamping plates to move towards the mounting plate until one side of the two clamping plates completely abuts against one side of the tool rest, so that the auxiliary fixing between the mounting plate and the tool rest can be achieved, which is beneficial to preventing the connection between the stubble-breaking tool and the tool rest from loosening and facilitating the normal operation of the rotary tiller. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional structural diagram of the main body of the present utility model;

[0024] Figure 2 is a three-dimensional structural diagram of the auxiliary device of the present utility model;

[0025] Figure 3 is of the present utility model Figure 2 is an enlarged structural diagram of part A of the present utility model;

[0026] Figure 4 is of the present utility model Figure 2 is an enlarged structural diagram of part B of the present utility model.

[0027] Legend: 1, mounting plate; 2, knife plate; 3, knife shaft; 4, auxiliary device; 41, clamping plate; 42, auxiliary groove; 43, threaded rod; 44, auxiliary block; 45, hexagonal block; 46, operating block; 47, first nut; 48, rubber plate; 5, strengthening device; 51, reinforcing block; 52, round hole block; 53, threaded pin; 54, second nut; 55, gasket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Example 1, referring to Figures 1-3As shown in the figure, this embodiment discloses a stubble-breaking tool for a rotary tiller, which includes a mounting plate 1 and a cutter plate 2. One side of the mounting plate 1 is fixedly connected to one side of the cutter plate 2. A cutter shaft 3 is arranged on the inner wall of the mounting plate 1, and an auxiliary device 4 is arranged on the outer surface of the mounting plate 1. The auxiliary device 4 includes two clamping plates 41, which are respectively arranged on both sides of the mounting plate 1. An auxiliary groove 42 is formed on one side of the clamping plate 41, and the cutter shaft 3 is arranged on the inner wall of the auxiliary groove 42. A threaded rod 43 is threadedly connected to the inner wall of the clamping plate 41, and one end of the threaded rod 43 is rotatably connected to the inner wall of the mounting plate 1. A strengthening device 5 is arranged between the cutter plate 2 and the mounting plate 1. By arranging two clamping plates 41, under the action of the threaded rod 43, when the threaded rod 43 is rotated, when the cutter shaft 3 is outside the auxiliary groove 42, the clamping plate 41 lacks a limit, and the threaded rod 43 will drive the clamping plate 41 to rotate until the cutter shaft 3 enters the inner wall of the auxiliary groove 42. Continuing to rotate the threaded rod 43, the threaded rod 43 will drive the clamping plate 41 to move towards the mounting plate 1 until one side of the clamping plate 41 is completely abutted against one side of the cutter holder, then the auxiliary fixation between the mounting plate 1 and the cutter holder can be carried out, which is beneficial to preventing the connection between the stubble-breaking tool and the cutter holder from loosening and facilitating the normal operation of the rotary tiller.

[0029] Referring to Figure 2 and Figure 3 As shown in the figure, an operation block 46 is arranged at one end of the threaded rod 43, and protrusions are arranged on the outer surface of the operation block 46. By arranging the operation block 46, rotating the operation block 46 can drive the threaded rod 43 to rotate. At the same time, the protrusions are arranged on the outer surface of the operation block 46, which can effectively increase the friction force on the outer surface of the operation block 46 and play a role in preventing slipping when the operation block 46 is rotated; an auxiliary block 44 is fixedly connected to one end of the threaded rod 43, and a hexagonal block 45 is fixedly connected to one side of the operation block 46. The outer surface of the hexagonal block 45 is inserted into the inner wall of the auxiliary block 44. By arranging the auxiliary block 44 and the hexagonal block 45, inserting the hexagonal block 45 into the inner wall of the auxiliary block 44 can connect the operation block 46 and the threaded rod 43, and at the same time, it is also convenient to disassemble the operation block 46, which is beneficial to preventing the protruding operation block 46 from hindering the stubble-breaking operation of the tool.

[0030] Referring to Figure 2 and Figure 3 As shown in the figure, a first nut 47 is threadedly connected to the outer surface of the threaded rod 43, and the first nut 47 is arranged between the auxiliary block 44 and the clamping plate 41. By arranging the first nut 47 and rotating the first nut 47, so that one side of the first nut 47 abuts against one side of the clamping plate 41, the limit of one side of the clamping plate 41 can be carried out, which is beneficial to preventing the clamping of the clamping plate 41 on the cutter holder from loosening; rubber plates 48 are fixedly connected to the closer sides of the two clamping plates 41, and grooves are uniformly arranged on one side of the rubber plates 48. By arranging the rubber plates 48 with grooves, the friction force on one side of the clamping plate 41 can be increased, so that the clamping of the two clamping plates 41 on the cutter holder is tighter.

[0031] Referring to Figure 2 and Figure 4 As shown, the strengthening device 5 includes three strengthening blocks 51. Both sides of the strengthening block 51 are respectively abutted against one side of the mounting plate 1 and the knife plate 2. The cross-section of the strengthening block 51 is triangular. By setting the triangular strengthening block 51, the stability of the triangle can be utilized to assist in connecting and strengthening the support between the mounting plate 1 and the knife plate 2, and improve the stability of the connection between the mounting plate 1 and the knife plate 2.

[0032] Referring to Figure 2 and Figure 4 As shown, round hole blocks 52 are fixedly connected to both sides of the strengthening block 51. Threaded pins 53 are inserted into the inner walls of the round hole blocks 52. One ends of the two threaded pins 53 are respectively fixedly connected to one side of the mounting plate 1 and the knife plate 2. A second nut 54 is arranged on the outer surface of the threaded pin 53. By setting the threaded pin 53, the round hole block 52 is sleeved on the outer surface of the threaded pin 53, and then the second nut 54 is sleeved on one end of the threaded pin 53. Rotating the second nut 54 makes one side of the second nut 54 abut against one side of the round hole block 52, so that the strengthening block 51 can be fixed to the mounting plate 1 and the knife plate 2, and at the same time, it is also convenient to disassemble and replace the damaged strengthening block 51; a gasket 55 is arranged between the second nut 54 and the round hole block 52, and the outer surface of the threaded pin 53 is inserted into the inner wall of the round hole block 52. By setting the gasket 55, it can replace one side of the second nut 54 to abut against one side of the round hole block 52, which is beneficial to preventing the second nut 54 from loosening.

[0033] Working principle: Insert the hexagonal block 45 into the inner wall of the auxiliary block 44, then the operating block 46 and the threaded rod 43 can be connected. Rotate the operating block 46 to drive the threaded rod 43 to rotate. When the tool shaft 3 is outside the auxiliary groove 42, the clamping plate 41 lacks a limit, and the threaded rod 43 will drive the clamping plate 41 to rotate until the tool shaft 3 enters the inner wall of the auxiliary groove 42. Continue to rotate the threaded rod 43, and the threaded rod 43 will drive the clamping plate 41 to move towards the mounting plate 1 until the rubber plate 48 on one side of the clamping plate 41 is in full contact with one side of the tool holder. Then rotate the first nut 47 so that one side of the first nut 47 is in contact with one side of the clamping plate 41, then the side of the clamping plate 41 can be limited, which is beneficial to prevent the clamping of the tool holder by the clamping plate 41 from loosening, and can assist in fixing between the mounting plate 1 and the tool holder, which is beneficial to prevent the connection between the stubble-breaking tool and the tool holder from loosening; Sleeve the circular hole block 52 on the outer surface of the threaded pin 53, and then sleeve the gasket 55 and the second nut 54 on one end of the threaded pin 53. Rotate the second nut 54 so that one side of the second nut 54 is in contact with one side of the gasket 55, and one side of the gasket 55 is in contact with one side of the circular hole block 52, then the reinforcing block 51 can be fixed between the mounting plate 1 and the tool plate 2. The triangular reinforcing block 51 can utilize the stability of the triangle to assist in connecting and strengthening the support between the mounting plate 1 and the tool plate 2, and improve the stability of the connection between the mounting plate 1 and the tool plate 2.

Claims

1. A stubble-breaking tool for a rotary tiller, comprising a mounting plate (1) and a cutter plate (2), characterized in that: One side of the mounting plate (1) is fixedly connected to one side of the knife plate (2). A knife shaft (3) is arranged on the inner wall of the mounting plate (1). An auxiliary device (4) is arranged on the outer surface of the mounting plate (1). The auxiliary device (4) includes two clamping plates (41). The two clamping plates (41) are respectively arranged on both sides of the mounting plate (1). An auxiliary groove (42) is formed on one side of the clamping plate (41). The knife shaft (3) is arranged on the inner wall of the auxiliary groove (42). A threaded rod (43) is in threaded connection with the inner wall of the clamping plate (41). One end of the threaded rod (43) is rotatably connected to the inner wall of the mounting plate (1). A strengthening device (5) is arranged between the knife plate (2) and the mounting plate (1).

2. The stubble-breaking cutter for a rotary tiller according to claim 1, characterized in that: One end of the threaded rod (43) is provided with an operation block (46). Protrusions are arranged on the outer surface of the operation block (46).

3. The stubble-breaking tool for a rotary tiller according to claim 2, characterized in that: One end of the threaded rod (43) is fixedly connected to an auxiliary block (44). One side of the operation block (46) is fixedly connected to a hexagonal block (45). The outer surface of the hexagonal block (45) is inserted into the inner wall of the auxiliary block (44).

4. The stubble cutter for rotary tiller according to claim 3, characterized in that: A first nut (47) is in threaded connection with the outer surface of the threaded rod (43). The first nut (47) is arranged between the auxiliary block (44) and the clamping plate (41).

5. A stubble cutter for a rotary tiller according to claim 1, characterized in that: Rubber plates (48) are fixedly connected to the adjacent sides of the two clamping plates (41). Grooves are evenly arranged on one side of the rubber plates (48).

6. The stubble cutter for rotary tiller according to claim 1, characterized in that: The strengthening device (5) includes three strengthening blocks (51). Both sides of the strengthening block (51) are respectively in contact with one side of the mounting plate (1) and the knife plate (2). The cross-section of the strengthening block (51) is triangular.

7. A stubble cutter for a rotary tiller according to claim 6, characterized in that: Round hole blocks (52) are fixedly connected to both sides of the strengthening block (51). Threaded pins (53) are inserted into the inner walls of the round hole blocks (52). One ends of the two threaded pins (53) are respectively fixedly connected to one side of the mounting plate (1) and the knife plate (2). A second nut (54) is arranged on the outer surface of the threaded pin (53).

8. A stubble cutter for a rotary tiller according to claim 7, characterized in that: A gasket (55) is arranged between the second nut (54) and the round hole block (52). The outer surface of the threaded pin (53) is inserted into the inner wall of the round hole block (52).

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