Anti-winding weed blade of returning device of corn harvester

Abstract

The invention relates to the technical field of agricultural equipment, and provides an anti-winding weed blade for a returning device of a corn harvester, a cutter shaft rotates relative to a fixed disc, a plurality of returning blades are fixed on the periphery of the cutter disc through a cutter rest, and a gap is formed between each returning blade and the cutter disc. The fixing plate is located between the cutter shaft and the returning blade in the radial direction of the cutter shaft, a gap is formed between the fixing plate and the periphery of the cutter shaft, and a gap is also formed between the fixing plate and the inner side of the returning blade; the anti-winding blade is movably arranged on the fixing plate, the anti-winding blade is close to or far away from the inner side of the returning blade after moving and is far away from or close to the cutter shaft at the same time, the anti-winding blade moves in the radial direction parallel to the cutter shaft, and the end, far away from the cutter shaft, of the anti-winding blade is opposite to the inner side of the returning blade. And the minimum distance between the anti-winding blade and the inner side of the returning blade is 1-2mm. According to the technical scheme, the problem that weeds are wound around the end of the returning cutter shaft is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural equipment, in particular to a corn harvester residue device anti-winding weed blade. BACKGROUND

[0002] The corn harvester is generally used to realize the mechanized automatic harvesting of corn, and the residue device is used for residue treatment. In the residue device, the cutter shaft is rotatably arranged relative to the fixed disc, and one cutter holder is fixed on each of the left and right sides of the cutter shaft. The cutter shaft is fixed with a plurality of residue blades through the cutter holder. There is a gap between the inner side of the residue blade and the outer periphery of the cutter shaft. There may be a large number of weeds in the corn field. During the rotating operation of the residue cutter shaft driven by the cutter shaft, weeds may be wound around the residue cutter shaft, especially at the end close to the fixed disc. A large number of weeds winding around the residue cutter shaft will increase the rotating resistance of the residue cutter shaft, affecting the normal corn harvesting and residue operation.

[0003] The problem of weeds winding around the residue cutter shaft needs to be solved. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a corn harvester residue device anti-winding weed blade to solve the problem of weeds winding around the residue cutter shaft.

[0005] The technical scheme adopted by the present application is to provide a corn harvester residue device anti-winding weed blade, the cutter shaft is rotatable relative to the fixed disc, and the outer periphery of the cutter disc is fixed with a plurality of residue blades through the cutter holder. There is a gap between the residue blade and the cutter disc. It comprises: A fixed plate is fixedly arranged on the fixed disc, and the fixed plate is located between the cutter shaft and the residue blade in the radial direction of the cutter shaft. There is a gap between the fixed plate and the outer periphery of the cutter shaft, and there is also a gap between the fixed plate and the inner side of the residue blade. An anti-winding blade is movably arranged on the fixed plate. The anti-winding blade moves close to or away from the inner side of the residue blade, and at the same time, the anti-winding blade moves away from or close to the cutter shaft.

[0006] Further optimize the technical scheme, the anti-winding blade moves parallel to the radial direction of the cutter shaft.

[0007] Further optimize the technical scheme, after the end of the anti-winding blade away from the cutter shaft is opposite to the inner side of the residue blade, the minimum distance between the anti-winding blade and the inner side of the residue blade is 1-2mm.

[0008] Further optimize the technical scheme, the fixed plate has a connecting hole, and the anti-winding blade has a long hole. A screw is used to fix the anti-winding blade on the fixed plate.

[0009] Further optimize the technical solution, the head of the screw is used to abut on the anti-winding blade, and the threaded part of the screw is screwed through the long hole and then screwed in the connecting hole.

[0010] Further optimize the technical solution, the connecting hole has two, and the two connecting holes are arranged at intervals in the axial direction parallel to the blade shaft, the long hole has two, and the two long holes correspond to the positions of the two connecting holes one by one.

[0011] Further optimize the technical solution, the anti-winding blade is detachably mounted on the fixed plate.

[0012] Further optimize the technical solution, in the axial direction parallel to the blade shaft, the fixed plate is located between the fixed disc and the blade holder, and the fixed plate has an interval with the blade holder, and the anti-winding blade has an interval with the blade holder.

[0013] The beneficial effects of the present application are that: The anti-winding blade is movably arranged on the fixed plate, which can facilitate adjustment of the interval between the anti-winding blade and the blade shaft and adjustment of the interval between the anti-winding blade and the inner side of the blade holder opposite to the blade shaft, so as to cut the weeds entering between the blade holder and the blade shaft through the anti-winding blade, thereby solving the problem of weed winding, reducing power loss and accelerating the corn harvesting speed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 The figure is a structural schematic diagram of the present application; Fig. 2 The figure is a structural schematic diagram of the fixed plate of the present application; Marked in the figure: 101, fixed disc; 102, blade shaft; 103, blade holder; 104, blade for returning to the field; 2, fixed plate; 201, connecting hole; 3, anti-winding blade; 301, long hole; 4, screw. DETAILED DESCRIPTION

[0015] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0016] In order to make the drawing simple, only the parts related to the invention are shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the parts with the same structure or function is shown, or only one of them is marked. In this text, “one” not only means “only one”, but also means “more than one”, and “several” includes “two” and “more than two”.

[0017] In this article, it is necessary to explain that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be broadly understood, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0018] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0019] As Figs. 1-2 shown, corn harvester still field device anti-winding weed blade, embodiment 1, the rotation of the cutter shaft 102 relative to the fixed disc 101, the cutter disc periphery is fixed with a plurality of still field blades 104 through the cutter holder 103, the still field blade 104 and the cutter disc have interval, including: fixed plate 2, fixedly arranged on the fixed disc 101, in the radial direction of the cutter shaft 102, the fixed plate 2 is located between the cutter shaft 102 and the still field blade 104, the fixed plate 2 and the cutter shaft 102 periphery have interval, the fixed plate 2 and the inner side of the still field blade 104 also have interval; Anti-winding blade 3, movably arranged on the fixed plate 2, the anti-winding blade 3 moves close to or away from the inner side of the still field blade 104, at the same time, away from or close to the cutter shaft 102.

[0020] In use, the fixed plate 2 is fixed on the fixed disc 101, and is located beside the end of the cutter shaft 102, the fixed plate 2 itself can also play the role of weed anti-winding, at the same time, it can reduce the soil accumulation near the cutter shaft 102 and the fixed disc 101. The anti-winding blade 3 can move on the fixed plate 2 to adjust the position, thereby the interval between the anti-winding blade 3 and the inner side of the still field blade 104 can be changed. After the weeds are wound on the cutter shaft 102 and the anti-winding blade 3, the still field blade 104 follows the rotation of the cutter shaft 102, passes through the anti-winding blade 3, and through the friction of the anti-winding blade and the inner side of the still field blade 104, the weeds are cut off, the connection between the weeds in the ring direction is cut off, the weeds are prevented from winding, and through the interval adjustment, the cutting or grinding of the weeds can be better realized, and the effect of the cutter shaft 102 anti-winding is achieved.

[0021] When part of the weeds are directly wound on the cutter shaft 102 beside the anti-winding blade 3, the weeds may move to the end of the cutter shaft 102, and the weeds at the end in the winding state will affect the power output of the rotation. After the weeds wound in the middle move to the end, the weeds abut against the vertical side of the fixed plate 2 or the double sides of the anti-winding blade 3, or pass through the interval between the fixed plate 2 or the anti-winding blade 3 and the cutter shaft 102, the weeds can also be cut off, and the winding of the weeds is reduced.

[0022] Further, in the embodiment 2, the knife shaft 102 rotates relative to the fixed disc 101, and the outer periphery of the knife disc is fixed with a plurality of field leveling blades 104 through the knife holder 103. The field leveling blades 104 have a spacing with the knife disc. The embodiment comprises: a fixed plate 2, which is fixedly arranged on the fixed disc 101 and located between the knife shaft 102 and the field leveling blades 104 in the radial direction of the knife shaft 102. The fixed plate 2 has a spacing with the outer periphery of the knife shaft 102 and also has a spacing with the inner side of the field leveling blades 104; and an anti-winding blade 3, which is movably arranged on the fixed plate 2. The anti-winding blade 3 moves to be close to or away from the inner side of the field leveling blades 104, and simultaneously away from or close to the knife shaft 102.

[0023] The anti-winding blade 3 moves in parallel with the radial direction of the knife shaft 102.

[0024] In use, the moving track of the anti-winding blade 3 is not limited to moving in the radial direction of the knife shaft 102. The anti-winding blade 3 can be adjusted to have a spacing with the inner side of the field leveling blades 104 after moving. The moving path of the anti-winding blade 3 is parallel with the radial direction of the knife shaft 102, which facilitates to regularly adjust the minimum spacing between the anti-winding blade 3 and the inner side of the field leveling blades 104 by moving.

[0025] Further, in the embodiment 3, the knife shaft 102 rotates relative to the fixed disc 101, and the outer periphery of the knife disc is fixed with a plurality of field leveling blades 104 through the knife holder 103. The field leveling blades 104 have a spacing with the knife disc. The embodiment comprises: a fixed plate 2, which is fixedly arranged on the fixed disc 101 and located between the knife shaft 102 and the field leveling blades 104 in the radial direction of the knife shaft 102. The fixed plate 2 has a spacing with the outer periphery of the knife shaft 102 and also has a spacing with the inner side of the field leveling blades 104; and an anti-winding blade 3, which is movably arranged on the fixed plate 2. The anti-winding blade 3 moves to be close to or away from the inner side of the field leveling blades 104, and simultaneously away from or close to the knife shaft 102.

[0026] After the end of the anti-winding blade 3 away from the knife shaft 102 is opposite to the inner side of the field leveling blades 104, the minimum spacing between the anti-winding blade 3 and the inner side of the field leveling blades 104 is 1 mm to 2 mm.

[0027] In use, the anti-winding blade 3 can be fixed on the fixed plate 2 after adjusting the minimum spacing between the anti-winding blade 3 and the inner side of the field leveling blades 104 (i.e. the side of the field leveling blades 104 facing the knife shaft 102). When the field leveling blades 104 rotate to the side away from the knife shaft 102 of the anti-winding blade 3, the spacing between the anti-winding blade 3 and the field leveling blades 104 can be 1 mm (including 1 mm) to 2 mm (including 2 mm), which can achieve a better effect of grinding and cutting off weeds, and meanwhile does not affect the circumferential rotation of the field leveling blades 104.

[0028] Further, the embodiment 4, the knife shaft 102 rotates relative to the fixed disc 101, the knife disc periphery is fixed with a plurality of field cultivator blades 104 through the knife holder 103, the field cultivator blade 104 and the knife disc have interval, comprising: fixed plate 2, fixedly arranged on the fixed disc 101, in the radial direction of the knife shaft 102, the fixed plate 2 is located between the knife shaft 102 and the field cultivator blade 104, the fixed plate 2 and the periphery of the knife shaft 102 have interval, the fixed plate 2 and the inner side of the field cultivator blade 104 also have interval;Anti-winding blade 3, movably arranged on the fixed plate 2, the anti-winding blade 3 moves to be close to or away from the inner side of the field cultivator blade 104, and simultaneously away from or close to the knife shaft 102.

[0029] The fixed plate 2 has a connecting hole 201, the anti-winding blade 3 has a long strip hole 301, further comprising: screw 4, used for fixing the anti-winding blade 3 on the fixed plate 2.

[0030] In use, after the anti-winding blade 3 moves to adjust the position, it is fixed on the fixed plate 2, and can be fixed and connected through the existing connecting piece, such as screw 4, which can fix the anti-winding blade 3 on the fixed plate 2. The long axis direction of the long strip hole 301 is arranged along the radial direction of the knife shaft 102, and the anti-winding blade 3 can slide up and down to adjust the position.

[0031] Further, the embodiment 4, the knife shaft 102 rotates relative to the fixed disc 101, the knife disc periphery is fixed with a plurality of field cultivator blades 104 through the knife holder 103, the field cultivator blade 104 and the knife disc have interval, comprising: fixed plate 2, fixedly arranged on the fixed disc 101, in the radial direction of the knife shaft 102, the fixed plate 2 is located between the knife shaft 102 and the field cultivator blade 104, the fixed plate 2 and the periphery of the knife shaft 102 have interval, the fixed plate 2 and the inner side of the field cultivator blade 104 also have interval;Anti-winding blade 3, movably arranged on the fixed plate 2, the anti-winding blade 3 moves to be close to or away from the inner side of the field cultivator blade 104, and simultaneously away from or close to the knife shaft 102.

[0032] The fixed plate 2 has a connecting hole 201, the anti-winding blade 3 has a long strip hole 301, further comprising: screw 4, used for fixing the anti-winding blade 3 on the fixed plate 2.

[0033] The head of the screw 4 is used for abutting on the anti-winding blade 3, and the threaded part of the screw 4 is screw-connected after penetrating through the long strip hole 301 and the connecting hole 201.

[0034] In use, the polygonal prism head of the screw 4 can abut on the anti-winding blade 3, that is, the head diameter of the screw 4 is greater than the width of the long strip hole 301, the threaded part of the screw 4 is screw-connected with the connecting hole 201 on the fixed plate 2 after penetrating through the long strip hole 301, and internal threads can be drilled in the connecting hole 201.

[0035] When the connection is achieved by the screw 4, a long hole 301 can also be arranged on the fixed plate 2, and a connecting hole 201 is arranged on the anti-winding blade 3, the head of the screw 4 abuts against one side of the fixed plate 2 away from the anti-winding blade 3, and the threaded part is threadedly connected after passing through the long hole 301 of the fixed plate 2 and the connecting hole 201 of the anti-winding blade 3, and the anti-winding blade 3 can also be locked on the fixed plate 2.

[0036] Of course, the anti-winding blade 3 can also be locked and fixed on the fixed plate 2 by cooperation of the screw 4 and the bolt. Stable threaded connection and fixation can be achieved by conventional anti-loosening arrangement.

[0037] Further, in the embodiment 6, the cutter shaft 102 rotates relative to the fixed disc 101, and the periphery of the cutter disc is fixed with a plurality of ridge tillage blades 104 through the cutter holder 103, and the ridge tillage blade 104 has a spacing with the cutter disc, comprising: a fixed plate 2 fixedly arranged on the fixed disc 101, and the fixed plate 2 is located between the cutter shaft 102 and the ridge tillage blade 104 in the radial direction of the cutter shaft 102, and the fixed plate 2 has a spacing with the periphery of the cutter shaft 102, and the fixed plate 2 also has a spacing with the inner side of the ridge tillage blade 104; an anti-winding blade 3 movably arranged on the fixed plate 2, and the anti-winding blade 3 moves to approach or move away from the inner side of the ridge tillage blade 104, and simultaneously moves away from or approaches the cutter shaft 102.

[0038] The fixed plate 2 has a connecting hole 201, and the anti-winding blade 3 has a long hole 301, and further comprising: a screw 4 for fixing the anti-winding blade 3 on the fixed plate 2.

[0039] The connecting hole 201 has two, and the two connecting holes 201 are arranged in parallel to the axis direction of the cutter shaft 102, and the long hole 301 has two, and the two long holes 301 correspond to the positions of the two connecting holes 201 one by one.

[0040] In use, when the anti-winding blade 3 cuts the winding weeds or cooperates with the ridge tillage blade 104 to rub the winding weeds, the anti-winding blade 3 will bear a larger radial pressure when there are more winding weeds, so it is necessary to stably fix the anti-winding blade 3 on the fixed plate 2 to avoid the situation that the spacing between the anti-winding blade 3 and the ridge tillage blade 104 is increased and effective cutting and rubbing of weeds cannot be achieved, and at the same time, the anti-winding blade 3 is prevented from being tilted due to unilateral force and interfering with the ridge tillage blade 104 to cause damage.

[0041] By arranging two connecting holes 201 and two long holes 301, and simultaneously adapting two screws 4 for connection and fixation, the anti-winding blade 3 can be more stably fixed on the fixed plate 2.

[0042] Further, the embodiment 7, the cutter shaft 102 rotates relative to the fixed disc 101, the cutter disc periphery is fixed with a plurality of field cultivator blades 104 through the cutter holder 103, the field cultivator blade 104 and the cutter disc have a spacing, comprising: a fixed plate 2, fixedly arranged on the fixed disc 101, in the radial direction of the cutter shaft 102, the fixed plate 2 is located between the cutter shaft 102 and the field cultivator blade 104, the fixed plate 2 and the periphery of the cutter shaft 102 have a spacing, and the fixed plate 2 and the inner side of the field cultivator blade 104 also have a spacing; an anti-winding blade 3, movably arranged on the fixed plate 2, the anti-winding blade 3 moves to be close to or away from the inner side of the field cultivator blade 104, and at the same time, away from or close to the cutter shaft 102.

[0043] The anti-winding blade 3 is detachably mounted on the fixed plate 2.

[0044] In use, the movement of the anti-winding blade 3 on the fixed plate 2 adjusts the spacing with the field cultivator blade 104, and the anti-winding blade 3 is detachably fixedly mounted on the fixed plate 2, which is convenient for replacing the anti-winding blade 3.

[0045] Further, the embodiment 7, the cutter shaft 102 rotates relative to the fixed disc 101, the cutter disc periphery is fixed with a plurality of field cultivator blades 104 through the cutter holder 103, the field cultivator blade 104 and the cutter disc have a spacing, comprising: a fixed plate 2, fixedly arranged on the fixed disc 101, in the radial direction of the cutter shaft 102, the fixed plate 2 is located between the cutter shaft 102 and the field cultivator blade 104, the fixed plate 2 and the periphery of the cutter shaft 102 have a spacing, and the fixed plate 2 and the inner side of the field cultivator blade 104 also have a spacing; an anti-winding blade 3, movably arranged on the fixed plate 2, the anti-winding blade 3 moves to be close to or away from the inner side of the field cultivator blade 104, and at the same time, away from or close to the cutter shaft 102.

[0046] In the direction parallel to the axis of the cutter shaft 102, the fixed plate 2 is located between the fixed disc 101 and the cutter holder 103, and the fixed plate 2 and the cutter holder 103 have a spacing, and the anti-winding blade 3 and the cutter holder 103 have a spacing.

[0047] In use, the Shott blade 104 is arranged in parallel with the cutter shaft 102, and the Shott blade 104 is fixed on the cutter shaft 102 through the left and right cutter holders 103, and rotates with the cutter shaft 102, so that the weeds wrapped in the middle of the cutter shaft 102 cannot move close to the end of the fixed disc 101 through the cutter holder 103, the cutter holder 103 and the cutter shaft 102 are in a synchronous rotating state, the weeds in the middle are wrapped or abutted on the cutter holder 103, and the influence on the power output of rotation is relatively small. The anti-winding blade 3 and the fixed plate 2 have a gap between the cutter holder 103, which can reduce the influence on rotation, the gap is relatively small, most of the weeds will first wrap on the cutter shaft 102 and the anti-winding blade 3, and after the anti-winding blade 3 is cut off, the wrapping resistance is lost, and less weeds will directly wrap on the cutter shaft 102 beside the anti-winding blade 3, and the weeds wrapped on the cutter shaft 102 will also pass through the gap between the anti-winding blade and the cutter holder 103, and the weeds will also pass through the friction cutting process.

[0048] It can be understood that the present application is described by some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to the features and embodiments without departing from the spirit and scope of the present application. In addition, under the guidance of the present application, the features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the present application. Therefore, the present application is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are within the scope of the present application.

Claims

1. A weed-returning device for a corn harvester, comprising a blade shaft (102) rotating relative to a fixed disc (101), and a plurality of weed-returning blades (104) fixed around the disc via a blade holder (103), wherein the weed-returning blades (104) are spaced apart from the disc, characterized in that, include: A fixing plate (2) is fixedly mounted on a fixing plate (101). The fixing plate (2) is located between the cutting shaft (102) and the returning blade (104) in the radial direction of the cutting shaft (102). There is a gap between the fixing plate (2) and the outer periphery of the cutting shaft (102), and there is also a gap between the fixing plate (2) and the inner side of the returning blade (104). The anti-tangling blade (3) is movably mounted on the fixed plate (2). After the anti-tangling blade (3) moves, it approaches or moves away from the inner side of the returning blade (104), while moving away from or approaching the blade shaft (102).

2. The anti-tangling weed blade of the corn harvester's field-returning device according to claim 1, characterized in that, The anti-tangle blade (3) moves in the radial direction parallel to the blade shaft (102).

3. The anti-tangling weed blade of the corn harvester's field-returning device according to claim 1, characterized in that, After the end of the anti-tangle blade (3) away from the blade shaft (102) is directly opposite the inner side of the returning blade (104), the minimum distance between the anti-tangle blade (3) and the inner side of the returning blade (104) is 1 mm to 2 mm.

4. The anti-tangling weed blade of the corn harvester's field-returning device according to claim 1, characterized in that, The fixing plate (2) has a connecting hole (201), the anti-entanglement blade (3) has an elongated hole (301), and also includes: Screws (4) are used to fix the anti-entanglement blade (3) onto the fixing plate (2).

5. The anti-tangling weed blade of the corn harvester's field-returning device according to claim 4, characterized in that, The head of the screw (4) is used to abut against the anti-tangle blade (3), and the threaded portion of the screw (4) passes through the elongated hole (301) and is threaded into the connecting hole (201).

6. The anti-tangling weed blade of the corn harvester's field-returning device according to claim 4, characterized in that, There are two connecting holes (201), which are spaced apart in a direction parallel to the axis of the cutter shaft (102). There are two elongated holes (301), and the positions of the two elongated holes (301) correspond one-to-one with the positions of the two connecting holes (201).

7. The anti-tangling weed blade of the corn harvester's field-returning device according to claim 1, characterized in that, The anti-entanglement blade (3) is detachably mounted on the fixing plate (2).

8. The anti-tangling weed blade of the corn harvester's field-returning device according to claim 1, characterized in that, In the direction parallel to the axis of the cutter shaft (102), the fixing plate (2) is located between the fixing plate (101) and the cutter holder (103), with a gap between the fixing plate (2) and the cutter holder (103), and a gap between the anti-tangle blade (3) and the cutter holder (103).

Images