Quick dismounting and replacing device and method for reel chain of corn header

Abstract

The invention relates to the technical field of corn headers, and discloses a corn header seedling pulling chain rapid dismounting and replacing device and method.The corn header seedling pulling chain rapid dismounting and replacing device comprises a fixed support, a handle and a movable frame which are sequentially hinged, a fixed part is arranged at one end of the fixed support, a clamping part is arranged at one end of the movable frame, and the other end of the fixed support is hinged to the position, close to the end, of the handle; the end of the handle is hinged to the other end of the movable frame. The fixing part is used for abutting against the tail end of a cylinder barrel of the air spring, the clamping part is used for abutting against the tail end of a piston rod of the air spring, the clamping part compresses the piston rod by pulling the handle, and the distance between a driving wheel and a tensioning wheel on the corn header is shortened. According to the device, the handle, the fixed support and the movable frame are arranged, the fixed part on the fixed support is in positioning fit with the fixed seat, the movable frame is in positioning fit with the piston rod, the gas spring can be compressed by moving the wrench, the distance between the driving wheel and the tensioning wheel is shortened, and the reel chain is conveniently and rapidly disassembled and assembled.

Description

Technical Field

[0001] The invention relates to the technical field of corn cutting platforms, in particular to a device and method for quickly dismantling and replacing a corn cutting platform reel chain. Background Art

[0002] When the corn harvester is harvesting, the corn harvester header is used for the ear picking process during the corn harvesting process. The reed chain needs to run at high speed during operation. During the ear picking process, the reed chain is constantly impacted by corn stalks and ears and is worn by other parts. Therefore, the reed chain needs to be regularly maintained. The reed chains on the left and right sides need to be flipped and swapped for use regularly. When the reed chain is damaged or severely worn, it needs to be replaced. To replace the reed chain, the reed chain needs to be removed from the header. However, the existing chain disassembly tool needs to be used to disassemble the reed chain, and the chain needs to be disconnected and reinstalled. This disassembly method is more troublesome. In addition, since the tensioning wheel tensions the chain under the action of the gas spring, it also increases the difficulty of disassembling the reed chain with the existing chain disassembly tool. As a whole, there are problems of high labor intensity and low operating efficiency. Summary of the invention

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a device and method for quickly disassembling and replacing a corn harvesting table plowing chain, which includes a handle, a fixed support and a movable frame, and the fixed portion on the fixed support is positioned and matched with the fixed seat, and the movable frame is positioned and matched with the piston rod. The gas spring can be compressed by moving the wrench, thereby shortening the distance between the driving wheel and the tensioning wheel, making it easy to quickly disassemble and install the plowing chain.

[0004] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0005] In the first aspect, a device for quickly dismantling a corn harvesting platform straw chain comprises a fixed support, a handle and a movable frame which are hinged in sequence, a fixed portion is provided at one end of the fixed support, a clamping portion is provided at one end of the movable frame, the other end of the fixed support is hinged to the handle near the end position, and the end of the handle is hinged to the other end of the movable frame; the fixed portion is used to abut against the end of the cylinder of the gas spring, and the clamping portion is used to abut against the end of the piston rod of the gas spring, and the clamping portion compresses the piston rod by pulling the handle, thereby shortening the distance between the driving wheel and the tensioning wheel on the corn harvesting platform.

[0006] As a further implementation, the handle is arranged between the fixed support and the movable frame.

[0007] As a further implementation method, one end of the handle is a hand-holding portion, and the other end is provided with two groups of through holes, and is respectively hinged to the fixed support and the movable frame through a hinge bolt pair.

[0008] As a further implementation method, a limit plate is provided at one end of the bottom of the fixed support, the fixing part is arranged on the inner side of the limit plate, the fixing part is a pin shaft arranged vertically to the limit plate, the cylinder is fixed at one end of the fixed seat, and a hole is provided at the other end of the fixed seat for cooperating with the pin shaft.

[0009] As a further implementation method, a saddle is further provided at the bottom of the fixed support for fitting on both sides of the cylinder.

[0010] As a further implementation, the movable frame is a rod-shaped structure, the clamping portion is configured as a movable end hook, and the movable end hook is used to cooperate with a positioning hole at the front end of the piston rod.

[0011] As a further implementation, a safety hook is provided at one end of the movable frame close to the clamping portion to limit the rebound of the handle.

[0012] As a further implementation, the safety hook is arranged on a side of the movable frame away from the handle.

[0013] As a further implementation method, the safety hook body is L-shaped, and the safety hook is fixedly connected to the movable frame; the setting of the safety hook can realize the positioning of the handle after being pulled, prevent the handle from resetting, prevent the gas spring from rebounding, and free one hand, making it convenient for the staff to disassemble and install the chain with both hands.

[0014] In a second aspect, a method for quickly dismantling a corn harvesting platform reel chain is provided, using any of the above-described devices for quickly dismantling a corn harvesting platform reel chain, comprising the following steps:

[0015] Use the fixed part of the fixed support to abut the fixed seat at the end of the gas spring, use the clamping part at the end of the movable frame to abut the end of the piston rod, move the handle, and use the fixed part and the clamping part to compress the gas spring, so that the piston rod contracts, the distance between the driving wheel and the tensioning wheel is shortened, the chain is removed, and a new chain is installed.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The present invention is provided with a handle, a fixed support and a movable frame, and the fixing portion on the fixed support is positioned and matched with the fixed seat, and the movable frame is positioned and matched with the piston rod. The gas spring can be compressed by moving the wrench, thereby shortening the distance between the driving wheel and the tensioning wheel, which is convenient for quick disassembly and installation of the reed chain.

[0018] 2. A saddle is provided on the fixed support of the present invention, and the saddle can be positioned on both sides of the cylinder to ensure the stability of the device; the setting of the safety hook can realize the positioning of the handle after being pulled, prevent the handle from resetting, prevent the gas spring from rebounding, and free one hand, making it convenient for the staff to disassemble and install the chain with both hands. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] Figure 1 1 is a schematic diagram of the overall structure of a corn harvesting platform shearing chain quick disassembly and replacement device according to an embodiment of the present invention;

[0021] Figure 2 2 is a schematic diagram of a first working state of a corn harvesting platform shearing chain quick disassembly and replacement device according to an embodiment of the present invention;

[0022] Figure 3 It is a schematic diagram of the second working state of the corn harvesting platform plowing chain quick disassembly and replacement device in an embodiment of the present invention.

[0023] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0024] Among them: 1. handle; 2. fixed support; 3. hinge bolt pair; 4. movable frame;

[0025] 21. Pin; 22. Saddle; 41. Safety hook; 42. Movable end hook; 100. Driving wheel; 200. Tensioning wheel; 300. Reed chain; 400. Fixed seat; 500. Piston rod. DETAILED DESCRIPTION

[0026] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0027] Embodiment 1

[0028] In a typical embodiment of the present invention, reference is made to Figure 1-Figure 3 As shown, a quick disassembly and replacement device for a corn harvesting platform plowing chain comprises a fixed support, a handle and a movable frame which are hinged in sequence, a fixed portion is provided at one end of the fixed support, a clamping portion is provided at one end of the movable frame, the other end of the fixed support is hinged to the handle near the end position, and the end of the handle is hinged to the other end of the movable frame; the fixed portion is used to abut against the end of the cylinder barrel of the gas spring, and the clamping portion is used to abut against the end of the piston rod of the gas spring, and the clamping portion compresses the piston rod by pulling the handle, thereby shortening the distance between the driving wheel and the tensioning wheel on the corn harvesting platform.

[0029] like Figure 1 As shown, the handle is arranged between the fixed support and the movable frame, one side of the handle is hinged to the end of the fixed support through a hinge bolt pair, and the other side of the handle is hinged to the movable frame through a hinge bolt pair.

[0030] One end of the handle is a hand-holding part, and the other end is provided with two groups of through holes, and hinge bolt pairs are arranged at the two groups of through holes to be hinged with the fixed support and the movable frame.

[0031] Specifically, the first through hole at the end of the handle 1 is hinged to the movable frame 4 near the end through a hinge bolt pair, and the second through hole at the end of the handle 1 is hinged to the end of the fixed support through a hinge bolt pair. The second through hole is located on the side of the first through hole away from the movable frame. The corn harvesting platform reel chain quick disassembly and replacement device is in a natural state. Figure 1 shown.

[0032] A limiting plate is vertically arranged at one end of the bottom of the fixed support away from the hinged position, and the fixing part is arranged inside the limiting plate, and the fixing part is a pin shaft 21 vertically arranged with the limiting plate.

[0033] A saddle is also provided at the bottom of the fixed support, which is used to cooperate with both sides of the cylinder barrel, thereby limiting the position of the disassembly device and preventing the device from detaching during chain disassembly, thereby ensuring safety.

[0034] like Figure 1 As shown, the movable frame is a rod-shaped structure, and the clamping part is set as a movable end hook, and the clamping part is arranged at the end of the movable frame away from the handle 1. The movable end hook is used to cooperate with the positioning hole at the front end of the piston rod.

[0035] like Figure 2 As shown, a fixing seat 400 is provided on the corn cutting table, a gas spring is fixedly installed at one end of the fixing seat 400, the cylinder of the gas spring is fixedly connected to the fixing seat 400, the piston rod 500 of the gas spring extends in a direction away from the cylinder, and the end support frame of the piston rod 500 supports a tensioning wheel 200, a driving wheel 100 is provided on the side of the fixing seat away from the tensioning wheel 200, a reed chain is installed on the driving wheel 100 and the tensioning wheel 200, the piston rod pushes the tensioning wheel to achieve tensioning of the reed chain 300, and the driving wheel 100 drives the reed chain 300 to move. A fixing hole is provided at one end of the fixing seat away from the gas spring for cooperating with the pin shaft.

[0036] The movable frame is provided with a safety hook at one end close to the clamping part for limiting the rebound of the handle. The safety hook is arranged on the side of the movable frame away from the handle. The main body of the safety hook is L-shaped and the safety hook is fixedly connected to the movable frame.

[0037] like Figure 2 As shown, the pin 21 on the fixed support 2 is positioned and matched with the fixing hole on the fixed seat 400, and the movable end hook 42 on the movable frame 4 is hooked into the positioning hole at the end of the piston rod 500. Figure 2 As shown, the hand-held part of the handle 1 is then moved clockwise, and the clamping part compresses the piston rod by pulling the handle to shorten the distance between the driving wheel and the tensioning wheel on the corn cutting table. The reed chain can then be removed and replaced with a new one.

[0038] The setting of the safety hook 41 can make the handle 1 be hooked by the safety hook 41, such as Figure 3 As shown, the gas spring is kept in a shortened state so that it will not rebound, which makes it convenient for workers to install and remove the chain with both hands. The maintenance efficiency of the corn harvesting header is improved, thereby improving the overall harvesting efficiency of the corn harvester, while reducing the labor intensity of the agricultural machine operator or maintenance personnel in operating and maintaining the harvester during the harvesting operation, and enhancing the overall performance of the harvester.

[0039] It can be understood that there is a certain deflection margin at the hinge point between the handle 1, the fixed support 2 and the movable frame 4 in this embodiment, so that after the handle 1 is pulled, the handle can go around to the inside of the safety hook through the deflection margin and cooperate with the safety hook 41.

[0040] Embodiment 2

[0041] In a typical embodiment of the present invention, reference is made to Figure 1-Figure 3 As shown, a method for quickly disassembling a corn harvesting platform reel chain, using the corn harvesting platform reel chain quickly disassembling device of embodiment 1, comprises the following steps:

[0042] The fixing portion of the fixed support is used to abut the fixing seat at the end of the gas spring, that is, the pin 21 is pressed tightly into the fixing hole of the fixing seat, and the clamping portion of the end of the movable frame is used to abut the positioning hole at the end of the piston rod, that is, the movable end hook 42 is used to hook the positioning hole at the end of the piston rod. Figure 2 Then, the gripping part of the handle 1 is moved clockwise, and the gas spring is compressed by the fixing part and the clamping part, so that the piston rod is contracted, thereby achieving the distance between the driving wheel and the tensioning wheel to be close, and then the handle is hooked and fixed by the safety hook 41 to prevent the handle from being reset, so as to maintain the contracted state of the gas spring, as shown in FIG. Figure 3 As shown, because the distance between the driving wheel and the tension wheel is close, the reed chain can be quickly disassembled and installed with both hands. After installation, the handle 1 is separated from the safety hook 41, and the handle 1 is reset and the device is removed.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A corn harvesting platform reel chain quick disassembly and replacement device, characterized in that: It includes a fixed support, a handle and a movable frame which are hinged in sequence. A fixed part is provided at one end of the fixed support, a clamping part is provided at one end of the movable frame, the other end of the fixed support is hinged to the handle near the end position, and the end of the handle is hinged to the other end of the movable frame; the fixed part is used to abut against the end of the cylinder of the gas spring, and the clamping part is used to abut against the end of the piston rod of the gas spring. By pulling the handle, the clamping part compresses the piston rod, thereby shortening the distance between the driving wheel and the tensioning wheel on the corn cutting table.

2. A corn harvesting platform reel chain quick disassembly and replacement device according to claim 1, characterized in that: The handle is arranged between the fixed support and the movable frame.

3. A corn harvesting platform reel chain quick disassembly and replacement device according to claim 1, characterized in that: One end of the handle is a hand-holding part, and the other end is provided with two groups of through holes, which are respectively hinged to the fixed support and the movable frame through a hinge bolt pair.

4. A corn harvesting platform reel chain quick disassembly and replacement device according to claim 1, characterized in that: A limit plate is provided at one end of the bottom of the fixed support, and the fixing part is provided on the inner side of the limit plate. The fixing part is a pin shaft vertically arranged with the limit plate. The cylinder is fixed at one end of the fixed seat, and a hole is provided at the other end of the fixed seat for cooperating with the pin shaft.

5. A corn harvesting platform reel chain quick disassembly and replacement device according to claim 4, characterized in that: A saddle is also provided at the bottom of the fixed support for fitting on both sides of the cylinder.

6. A corn harvesting platform reel chain quick disassembly and replacement device according to claim 1, characterized in that: The movable frame is a rod-shaped structure, and the clamping part is configured as a movable end hook, and the movable end hook is used to cooperate with the positioning hole at the front end of the piston rod.

7. A corn harvesting platform reel chain quick disassembly and replacement device according to claim 1, characterized in that: The movable frame is provided with a safety hook at one end close to the clamping portion, which is used to limit the rebound of the handle.

8. A corn harvesting platform reel chain quick disassembly and replacement device according to claim 7, characterized in that: The safety hook is arranged on a side of the movable frame away from the handle.

9. A corn harvesting platform reel chain quick disassembly and replacement device according to claim 8, characterized in that: The safety hook body is L-shaped, and the safety hook is fixedly connected to the movable frame.

10. A method for quickly dismantling and replacing a corn harvesting platform reel chain, characterized in that: The corn harvesting platform reel chain quick disassembly and replacement device as claimed in any one of claims 1 to 9 comprises the following steps: Use the fixed part of the fixed support to abut the fixed seat at the end of the gas spring, use the clamping part at the end of the movable frame to abut the end of the piston rod, move the handle, and use the fixed part and the clamping part to compress the gas spring, so that the piston rod contracts, the distance between the driving wheel and the tensioning wheel is shortened, the chain is removed, and a new chain is installed.

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