A straightening device for the cutter head of a corn harvester

Abstract

This utility model discloses a straightening device for corn harvester cutter heads, belonging to the field of harvester cutter head straightening and repair technology. It includes a first fixed block and a second fixed block. A straightening block is slidably mounted on the surface of the first fixed block, and an auxiliary straightening block is slidably mounted on the surface of the second fixed block. A limiting rod that slides within the first fixed block is fixedly connected to the inner side of the straightening block. A locking ring located on the outer side of the first fixed block is threaded onto the surface of the limiting rod. An adjusting block is fixedly mounted on the bottom of one side of the straightening block, and sliding grooves are provided on the bottom of both sides of the second fixed block. This utility model, through its adjustable jaw length design, allows users to flexibly adjust the jaw length according to the depth of the cutter head during straightening, meeting the straightening needs of different deformed parts. This provides assistance and convenience for users' straightening work, reduces costs, and is portable and readily available.

Description

Technical Field

[0001] This utility model belongs to the field of harvester cutter head straightening and repair technology, and in particular relates to a straightening device for corn harvester cutter heads. Background Technology

[0002] A corn harvester is an agricultural harvesting device used to harvest corn. Its blades are spiral-shaped and harvest corn along the machine's path while rotating. However, in actual use, we have found that the high-frequency contact between the blades and corn stalks causes the blade edges to deform easily. This directly affects the sharpness and cutting continuity of the blades, impacting the corn harvesting efficiency. There are no special tools for straightening the deformation; pliers can only be used to straighten the deformed areas bit by bit. However, the spiral trajectory and its long depth make it difficult for the pliers to reach deeper areas, significantly hindering the straightening work. Direct replacement would increase costs. Utility Model Content

[0003] The purpose of this utility model is to provide a straightening device for the cutter head of a corn harvester. It adopts a structural design that allows for adjustable jaw length. When straightening the cutter head, the user can flexibly adjust the jaw length according to the depth of the cutter head to meet the straightening needs of different deformed parts. This provides assistance and convenience for the user's straightening work, reduces cost investment, and allows the device to be carried on the vehicle and used whenever needed, thus solving the aforementioned technical problems.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A straightening device for a corn harvester cutter head includes a first fixed block and a second fixed block. A straightening block is slidably installed on the surface of the first fixed block, and an auxiliary straightening block is slidably installed on the surface of the second fixed block. A limiting rod that slides within the first fixed block is fixedly connected to the inner side of the straightening block. A locking ring located outside the first fixed block is threaded onto the surface of the limiting rod. An adjusting block is fixedly installed at the bottom of one side of the straightening block. Sliding grooves are provided at the bottom of both sides of the second fixed block. A locking pin is slidably installed inside the sliding groove. A spring is fixedly connected to one end of the locking pin, and the end of the spring away from the locking pin is fixedly connected to the inner wall of the sliding groove. Multiple slots that match the locking pin are provided on both sides of the inner cavity of the auxiliary straightening block.

[0005] Preferably, both the top of the fixed block one and the fixed block two are fixedly connected to movable arms, and the two movable arms are distributed in a crisscross pattern.

[0006] Preferably, a pivot rod is provided through the two movable arms, and the two movable arms are rotatably mounted together via the pivot rod.

[0007] Preferably, a connecting rod is fixedly connected to the top end of the movable arm, and a handle is threadedly installed on the top end of the movable arm via the connecting rod.

[0008] Preferably, the bottom and top of one side of the adjusting block are respectively detachably equipped with a straightening end head one and a straightening end head three.

[0009] Preferably, a straightening end head two is detachably installed at one end of one side of the adjusting block.

[0010] The beneficial effects of this utility model are: by adopting a structural design that allows for adjustable jaw length, users can flexibly adjust the jaw length according to the depth of the head when straightening the cutter head, meeting the straightening needs of different deformed parts, providing assistance and convenience for users' straightening work, reducing cost investment, and it can be carried in the vehicle and used at any time.

[0011] This utility model, through the setting of a connecting rod and a handle, allows the handle to be quickly installed on the movable arm and quickly removed from the movable arm, providing convenience for users and making it easy for them to store and carry.

[0012] This utility model, through the setting of straightening end one and straightening end three, allows the straightening end three to move to the original position of straightening end one when the adjusting block is rotated during operation. The shape of straightening end three can straighten smaller deformed parts, while straightening end one can straighten larger deformed parts, thereby meeting different straightening needs and providing assistance and convenience for users' straightening work.

[0013] This invention, through the setting of the second straightening end, allows the adjusting block to be rotated during operation, causing the second straightening end to move to the original position of the first straightening end. The shape of the second straightening end allows its tip to straighten small deformed parts, thereby meeting different usage needs. Attached Figure Description

[0014] The advantages of the present invention in the above and / or other aspects will become clearer and more readily understood through the following detailed description taken in conjunction with the accompanying drawings, which are merely illustrative and do not limit the present invention, wherein:

[0015] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the assembly of a three-dimensional limiting rod according to an embodiment of the present invention;

[0017] Figure 3 This is an exploded three-dimensional structural diagram of one embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure assembly of the rotating shaft rod according to an embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the assembly of a three-dimensional structure of the adjustment block according to an embodiment of the present invention.

[0020] In the attached diagram, the components represented by each number are as follows:

[0021] 1. Fixed block one, 2. Fixed block two, 3. Auxiliary straightening block, 4. Straightening block, 5. Limiting rod, 6. Locking ring, 7. Adjusting block, 8. Locking pin, 9. Spring, 10. Locking groove, 11. Movable arm, 12. Rotating shaft rod, 13. Connecting rod, 14. Handle, 15. Straightening end one, 16. Straightening end two, 17. Straightening end three, 18. Sliding groove. Detailed Implementation

[0022] In the following text, reference will be made to the appendix. Figure 1-5 This invention describes an embodiment of the corn harvester cutter head straightening device.

[0023] The embodiments described herein are specific implementations of this utility model, used to illustrate the concept of this utility model. They are all illustrative and exemplary, and should not be construed as limiting the implementation methods or scope of this utility model. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0024] The accompanying drawings in this specification are schematic diagrams used to illustrate the concept of this utility model, and schematically show the shapes of the various parts and their interrelationships. Please note that, in order to clearly show the structure of the components of the embodiments of this utility model, the drawings are not drawn to the same scale. The same reference numerals are used to indicate the same parts.

[0025] Example 1:

[0026] A straightening device for a corn harvester cutter head includes a first fixed block 1 and a second fixed block 2. A straightening block 4 is slidably mounted on the surface of the first fixed block 1, and an auxiliary straightening block 3 is slidably mounted on the surface of the second fixed block 2. A limiting rod 5 that slides within the first fixed block 1 is fixedly connected to the inner side of the straightening block 4. A locking ring 6 located outside the first fixed block 1 is threaded onto the surface of the limiting rod 5. An adjusting block 7 is fixedly mounted on the bottom of one side of the straightening block 4. Sliding grooves 18 are provided on the bottom of both sides of the second fixed block 2. A locking pin 8 is slidably mounted inside the sliding groove 18. A spring 9 is fixedly connected to one end of the locking pin 8. The end of the spring 9 away from the locking pin 8 is fixedly connected to the inner wall of the sliding groove 18. Multiple slots 10 that are adapted to the locking pin 8 are provided on both sides of the inner cavity of the auxiliary straightening block 3.

[0027] The specific usage process is as follows: First, observe the location of the cutter head deformation. Adjust the extension length of the auxiliary straightening block 3 and the straightening block 4 according to the depth of the deformation to meet the actual usage requirements. When adjusting the straightening block 4, first loosen the locking ring 6, and then move the straightening block 4 directly. The straightening block 4 will slide on the fixed block 1, and at the same time, the limiting rod 5 will slide inside the fixed block 1. This limits the straightening block 4 to ensure that it will not detach from the fixed block 1. After adjustment, tighten the locking ring 6 on the limiting rod 5 to fix the straightening block 4 in the current position. When adjusting the auxiliary straightening block 3, directly pull the auxiliary straightening block 3 to slide on the fixed block 2. During this process, the locking pin 8 will be squeezed in by the pressure of the inner wall of the auxiliary straightening block 3. The inner cavity of the sliding groove 18 is compressed simultaneously with the spring 9. The locking pin 8 then moves out of the current slot 10 and slides into the next slot 10. This process repeats until the auxiliary straightening block 3 is adjusted. Then, under the action of the spring 9, the locking pin 8 is ejected from the inner cavity of the sliding groove 18 and finally locks into the current slot 10, thus fixing the auxiliary straightening block 3. It should be noted that the direction of force during the movement of the auxiliary straightening block 3 is vertical (up and down), while the direction of force during operation is horizontal (perpendicular to the horizontal direction). Therefore, this will not affect the stability of the adjusted auxiliary straightening block 3, ensuring the normal operation of the straightening work and providing assistance and convenience for the user's straightening work. After adjustment, the user can hold the device... Holding one handle 14 in each hand, first open the two handles back to back, then open the auxiliary straightening blocks 3 and 4 back to back as well. As the two handles 14 rotate back to back, the two movable arms 11 will also rotate accordingly, causing the auxiliary straightening blocks 3 and 4 to unfold accordingly. It should be noted that the two movable arms 11 rotate on the pivot rod 12. Then, place the unfolded auxiliary straightening blocks 3 and 4 on both sides of the cutter head, so that the adjusting block 7 and the auxiliary straightening blocks 3 are on either side of the deformed position. Next, close the two handles 14 towards each other, causing the auxiliary straightening blocks 3 and 4 to close towards each other as well. During this process, the user must forcefully close the handles 14. Straightening block 3 and straightening block 4 can straighten deformed areas. It should be noted that the operation of this device is similar to that of scissors and pliers. It can be used as a reference for scissors or pliers, which is existing technology. Therefore, it adopts a structure design that can adjust the length of the jaws. When straightening the blade, the user can flexibly adjust the length of the jaws according to the depth of the blade head to meet the straightening needs of different deformed parts. This provides assistance and convenience for the user's straightening work, reduces cost investment, and can be carried in the vehicle for easy access. It should also be noted that the appropriate end can be selected by rotating the adjusting block 7, namely straightening end 15, straightening end 2 16, and straightening end 3 17, so as to meet the straightening needs of deformed parts of different sizes.

[0028] Both the top of the fixed block 1 and the fixed block 2 are fixedly connected to movable arms 11, and the two movable arms 11 are distributed in a crisscross pattern.

[0029] A pivot rod 12 is provided between the two movable arms 11, and the two movable arms 11 are rotatably mounted together through the pivot rod 12.

[0030] A connecting rod 13 is fixedly connected to the top end of the movable arm 11, and a handle 14 is threadedly installed on the top end of the movable arm 11 through the connecting rod 13.

[0031] Specifically, the connecting rod 13 and the handle 14 are designed so that the handle 14 can be quickly installed on the movable arm 11 and quickly removed from the movable arm 11, providing convenience for users and making it easy for users to store and carry.

[0032] The bottom and top of one side of the adjusting block 7 are respectively detachably equipped with a straightening end head 15 and a straightening end head 3 17.

[0033] Specifically, the straightening end 15 and the straightening end 3 17 are designed so that during operation, rotating the adjusting block 7 will move the straightening end 3 17 to the original position of the straightening end 15. By adjusting the shape of the straightening end 3 17, smaller deformed parts can be straightened, while the straightening end 15 can be straightened for larger deformed parts, thus meeting different straightening needs and providing assistance and convenience for users' straightening work.

[0034] One end of the adjusting block 7 is detachably fitted with a straightening end head 16.

[0035] Specifically, the setting of the second straightening end 16 is such that when the adjusting block 7 is rotated, the second straightening end 16 is moved to the original position of the first straightening end 15. Through the setting of the shape of the second straightening end 16, its tip can straighten small deformed parts, thereby meeting different usage needs.

[0036] It should be noted that the length of the handle 14 is greater than the length of the auxiliary straightening block 3 and the straightening block 4 after they are unfolded. This makes better use of the lever principle to easily complete the straightening work, which is the existing technology.

[0037] In summary, the corn harvester's cutter head is equipped with a straightening device. By adopting a structural design that allows for adjustable jaw length, users can flexibly adjust the jaw length according to the depth of the cutter head during straightening operations. This meets the straightening needs of different deformed parts, providing assistance and convenience for users' straightening work, reducing costs, and it can be carried on the vehicle for easy access.

[0038] The technical features disclosed above are not limited to the combinations of the disclosed features with other features. Those skilled in the art can also make other combinations of the technical features according to the purpose of the utility model in order to achieve the purpose of the utility model.

Claims

1. A straightening device for a corn harvester cutter head, characterized in that, The device includes a first fixed block (1) and a second fixed block (2): a straightening block (4) is slidably mounted on the surface of the first fixed block (1), an auxiliary straightening block (3) is slidably mounted on the surface of the second fixed block (2), a limiting rod (5) that slides in the first fixed block (1) is fixedly connected to the inner side of the straightening block (4), a locking ring (6) located outside the first fixed block (1) is threaded on the surface of the limiting rod (5), an adjusting block (7) is fixedly mounted on the bottom of one side of the straightening block (4), a sliding groove (18) is opened on the bottom of both sides of the second fixed block (2), a locking pin (8) is slidably mounted inside the sliding groove (18), a spring (9) is fixedly connected to one end of the locking pin (8), and the end of the spring (9) away from the locking pin (8) is fixedly connected to the inner wall of the sliding groove (18). Multiple slots (10) that are compatible with the locking pin (8) are opened on both sides of the inner cavity of the auxiliary straightening block (3).

2. The corn harvester cutter head straightening device according to claim 1, characterized in that, The top of both the fixed block one (1) and the fixed block two (2) are fixedly connected with movable arms (11), and the two movable arms (11) are distributed in a crisscross manner.

3. A straightening device for a corn harvester cutter head according to claim 2, characterized in that, A pivot rod (12) is provided between the two movable arms (11), and the two movable arms (11) are rotatably mounted together through the pivot rod (12).

4. A straightening device for a corn harvester cutter head according to claim 3, characterized in that, The top end of the movable arm (11) is fixedly connected to a connecting rod (13), and a handle (14) is threadedly installed on the top end of the movable arm (11) through the connecting rod (13).

5. A straightening device for a corn harvester cutter head according to claim 4, characterized in that, The bottom and top of one side of the adjustment block (7) are respectively detachably equipped with straightening end head one (15) and straightening end head three (17).

6. A straightening device for a corn harvester cutter head according to claim 5, characterized in that, One end of the adjusting block (7) is detachably fitted with a straightening end head (16).

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