Shredder assembling assembly and harvester

Abstract

The utility model relates to the technical field of chopper assembly, in particular to a chopper assembly and a harvester, the chopper assembly comprises a chopper and a mounting rack used for fixing the chopper, and further comprises a supporting rod structure, the chopper is located in an inner cavity of the mounting rack, and the supporting rod structure is located in the inner cavity of the mounting rack. The front end of the chopper is rotationally connected with the front end of the mounting frame through a hinge structure, and the rear end of the chopper is movably supported at the rear end part and / or the bottom of the mounting frame through the supporting rod structure. The chopper can be disassembled and assembled without a professional tool for disassembling a bolt, and the chopper can be conveniently disassembled and assembled at any time and any place to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of chopper assembly, in particular to a chopper assembly assembly and a harvester. Background Art

[0002] In the prior art, Figure 1 As shown, the chopper of the combine harvester is generally fixed by bolts, that is, the assembly of the chopper is mainly to fix the chopper to the mounting frame by a plurality of bolt assemblies on the left side plate of the chopper. The chopper is fixed by bolts, which is extremely inconvenient to disassemble and assemble, and cannot be disassembled without professional tools for removing bolts (such as wrenches and other tools). Therefore, the method of fixing the chopper by bolts is actually not convenient for disassembling and assembling the chopper anytime and anywhere. Utility Model Content

[0003] The utility model aims to provide a chopper assembly assembly, which can be disassembled and assembled without the need for a professional tool for disassembling bolts, and can facilitate the chopper to be disassembled and assembled anytime and anywhere to a certain extent.

[0004] Another object of the utility model is to provide a harvester that can be disassembled and assembled without the need for specialized tools for disassembling bolts, and can facilitate the disassembly and assembly of the chopper at any time and anywhere to a certain extent.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A chopper assembly comprises a chopper and a mounting frame for fixing the chopper, and also comprises a support rod structure, wherein the chopper is located in an inner cavity of the mounting frame, the front end of the chopper is rotatably connected to the front end of the mounting frame through a hinge structure, and the rear end of the chopper is movably supported on the rear end and / or the bottom of the mounting frame through the support rod structure.

[0007] Furthermore, the support rod structure is respectively arranged at the left and right ends of the rear side of the chopper, and one end of the support rod structure is connected to the chopper, and the other end is connected to the mounting frame.

[0008] Furthermore, the support rod structure includes a sleeve, a screw and a hinge seat;

[0009] One end of the screw is mounted on the mounting frame through the hinge seat, an internal thread is provided inside the sleeve, and the other end of the screw is mounted inside the sleeve and connected through threads;

[0010] The left and right ends of the rear side of the chopper are respectively provided with grooves, and the other end of the sleeve is located in the groove so as to lift up the chopper;

[0011] At least one through hole is arranged on the sleeve, and an angle exists between the axis of the through hole and the axis of the sleeve.

[0012] Furthermore, the other end of the sleeve is a closed end, and the closed end of the sleeve is provided with a top piece, the top piece is located in the groove and can block the rear side of the mounting frame through the closed end.

[0013] Furthermore, the rear lower parts of the left and right ends of the chopper are both inclined structures, and the grooves are provided on the inclined structures;

[0014] The articulated seat has a bottom surface and a rear side surface. The bottom surface of the articulated seat corresponds to the bottom of the mounting frame, and the rear side surface of the articulated seat corresponds to the rear end of the mounting frame. The articulated seat and the mounting frame are connected by bolts.

[0015] Furthermore, a locking nut is provided on the screw rod, and the locking nut is threadably connected to the screw rod and can be tightly pressed against one end of the sleeve.

[0016] Furthermore, the hinged seat includes a seat body and a pin shaft assembly, the pin shaft assembly includes a matching pin shaft and a cotter pin, an axial hole is arranged on the seat body, a rotating hole is opened at one end of the screw rod, the pin shaft is movably installed in the axial hole and penetrates the rotating hole, and the cotter pin is installed on the pin shaft.

[0017] Furthermore, the hinge structure includes a rotating shaft, which is arranged at the front end of the mounting frame along the left-right direction, and the front end of the chopper is rotatably connected to the front end of the mounting frame through the rotating shaft.

[0018] Furthermore, the support rod structure includes an articulated seat and an electric telescopic member, and the electric telescopic member adopts an electric push rod, a cylinder or a hydraulic cylinder;

[0019] The left and right ends of the rear side of the chopper are respectively provided with grooves, one end of the cylinder body of the electric telescopic member is installed on the mounting frame through the hinge seat, and one end of the telescopic rod of the electric telescopic member is located in the groove to lift the chopper.

[0020] A harvester, comprising a chassis support and the chopper assembly;

[0021] Wherein, the chopper assembly is arranged at the rear of the chassis bracket.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] The present application eliminates the original bolt fixing method for the chopper, and the front part of the chopper is rotatably mounted on the front end of the mounting frame through a rotating shaft. The chopper as a whole can rotate around the rotating shaft, and the rear side of the chopper is movably supported by a support rod structure, so that the chopper is supported and fixed; since the support rod structure movably supports the chopper, it is easy to remove the chopper. When the chopper needs to be removed, it is only necessary to remove the support rod structure and cancel the support of the support rod structure to the chopper to remove the chopper. Compared with the prior art, this supporting assembly method of the chopper can realize disassembly and assembly without professional tools for removing bolts, and to a certain extent, it is convenient for the chopper to be disassembled and assembled anytime and anywhere. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of a structure in which a plurality of bolt assemblies are arranged on the left side plate of a chopper in the prior art to be bolted to a mounting frame;

[0026] Figure 2 This is an isometric view of a support rod structure provided at the rear lower portion of the chopper of the utility model;

[0027] Figure 3 For this utility model Figure 2 Rear view of

[0028] Figure 4 For this utility model Figure 2 Right view of;

[0029] Figure 5 An axonometric view of the utility model chopper assembly assembly mounted on a chassis bracket;

[0030] Figure 6 For this utility model Figure 5 A partial enlarged view of the structure at point A in the middle.

[0031] In the figure:

[0032] 1-chopper; 2-mounting frame; 201-front column; 202-bottom column; 203-rear column; 204-inclined structure.

[0033] 3-support rod structure; 301-sleeve; 3011-perforation; 302-screw; 303-locking nut; 304-hinged seat; 3041-side mounting plate; 3042-bottom plate; 3043-rear side plate; 3044-pin shaft assembly;

[0034] 4- Chassis bracket. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in the following drawings.

[0038] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "right", "left", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0039] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0040] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0042] Example 1

[0043] Reference Figure 1-Figure 6 The present embodiment provides a chopper assembly, comprising a chopper 1 and a mounting frame 2 for fixing the chopper 1, and a support rod structure 3. The chopper 1 is located in an inner cavity of the mounting frame 2, and a front end of the chopper 1 is rotatably mounted on a front end of the mounting frame 2 through a hinge structure, and a rear end of the chopper 1 is movably supported on a rear end and / or a bottom of the mounting frame 2 through the support rod structure 3.

[0044] Specifically, the right side structure of the mounting frame 2 is a right side frame, and the left side structure of the mounting frame 2 is a left side frame. The right side frame is identical to the left side frame and is symmetrically arranged. The right side frame and the left side frame are collectively referred to as a frame, and the right side frame and the left side frame are fixedly connected by a plurality of crossbeams. The frame has a front column 201, a bottom column 202, and a rear column 203 connected in sequence, wherein the rear column 203 is inclined, the rear end of the bottom column 202 is fixedly connected to the bottom of the rear column 203, and the angle between the bottom column 202 and the rear column 203 is an obtuse angle.

[0045] The hinge structure includes a rotating shaft, which is arranged at the front end of the mounting frame along the left-right direction, and the front end of the chopper is rotatably connected to the front end of the mounting frame through the rotating shaft. Specifically, the two ends of the rotating shaft can be respectively arranged on the two front side columns 201 of the mounting frame 2.

[0046] In this embodiment, the support rod structure 3 is respectively arranged at the left and right ends of the rear side of the chopper 1, and one end of the support rod structure 3 is connected to the chopper 1, and the other end is connected to the mounting frame 2. That is, the support rod structure 3 is respectively arranged on the right frame and the left frame to support the rear of the chopper 1.

[0047] In this embodiment, the support rod structure 3 includes a sleeve 301, a screw rod 302, a locking nut 303 and a hinge seat 304;

[0048] One end of the screw rod 302 is mounted on the mounting frame 2 through the hinge seat 304, and an internal thread is provided inside the sleeve 301. The other end of the screw rod 302 is installed in the sleeve 301 and is connected through a thread. It should be noted that the sleeve 301 is a square tube or a round tube, but the inner cavity of the sleeve 301 is a circular straight channel, and an internal thread is partially or fully provided on the inner wall of the sleeve 301, and an external thread is provided on the outer wall of the screw rod 302, and the external thread of the screw rod 302 matches the internal thread of the sleeve 301.

[0049] Preferably, the inner wall of the sleeve 301 is provided with internal threads along the entire section of the circular straight channel.

[0050] The left and right ends of the rear side of the chopper 1 are respectively provided with grooves, or the left and right ends of the rear side of the chopper 1 are respectively welded with grooves, and the grooves are provided with grooves, and the other end of the sleeve 301 is located in the groove to lift up the chopper 1 to support the chopper 1. Since the support rod structure 3 pushes the other end of the sleeve 301 into the groove, and the groove itself has a limiting effect on the end of the sleeve 301, the support rod structure 3 can lift up and support the chopper 1 without falling off from the groove.

[0051] At least one through hole 3011 is provided on the sleeve 301, and an angle is formed between the axis of the through hole 3011 and the axis of the sleeve 301. Through the design of the through hole 3011, when the sleeve 301 and the screw rod 302 need to be disassembled, no professional tools are needed to achieve the disassembly. Specifically, a common rod such as a wooden stick, a branch or a thin iron rod is used to insert it into the through hole 3011, and then the sleeve 301 can be rotated by hand to loosen the sleeve 301 until the sleeve 301 is separated from the screw rod 302.

[0052] Preferably, two or three through holes 3011 are provided, and the through holes 3011 are provided close to one end of the chopper 1, and the axis of each through hole 3011 is perpendicular to the axis of the sleeve 301, and the axis of each through hole 3011 is different, so that each through hole 3011 has a different orientation, so that the operator can insert the rod body into any through hole 3011 from multiple angles, and then loosen and detach the sleeve 301 from the screw 302.

[0053] A locking nut 303 is also provided on the screw rod 302. Before the sleeve 301 is screwed to a suitable position, the locking nut 303 is screwed to tighten the sleeve 301 and limit its axial position to prevent the sleeve 301 from axially moving toward the hinge seat 304 during the operation of the chopper 1.

[0054] In the present embodiment, the sleeve 301 is a cylinder, one end of the sleeve 301 is an open end for being threadedly connected with the screw 302, and the other end of the sleeve 301 is a closed end and a closed structure. The advantages of designing the other end of the sleeve 301 as a closed structure are as follows: first, the sleeve 301 itself can be axially limited, and before the sleeve 301 is screwed onto the screw 302, the sleeve 301 can be prevented from being over-screwed; second, a wear-resistant top piece can be provided on the end surface of the closed end of the sleeve 301, and the top piece is used to press against the groove of the chopper 1. If necessary, the rear side of the chopper 1 can be blocked by the closed end of the sleeve 301. For example, when the groove of the chopper 1 is a through groove or a through hole, before the top piece is inserted into the groove, the end surface of the closed end of the sleeve 301 can be pressed against the rear side of the chopper 1, so as to support the chopper 1.

[0055] Preferably, the lower rear parts of the left and right ends of the chopper 1 are both inclined structures 204 (such as Figure 5 and Figure 6 As shown), the groove is provided on the inclined surface structure 204. Since the support rod structure 3 is generally inclined when actually supporting the chopper 1, when the rear lower parts of the left and right ends of the chopper 1 are both inclined surfaces 204 and the groove is provided on the inclined surface structure 204, the top piece of the sleeve 301 can be conveniently inserted into the groove.

[0056] The hinge seat 304 has a bottom surface and a rear side surface, the bottom surface of the hinge seat 304 is correspondingly fitted with the bottom (bottom column 202) of the mounting frame 2, and the rear side surface of the hinge seat 304 is correspondingly fitted with the rear end (rear side column 203) of the mounting frame 2, and the hinge seat 304 is connected to the mounting frame 2 by bolts. The rear gravity of the chopper 1 can be dispersed to the bottom column 202 and the rear side column 203 of the mounting frame 2, thereby dispersing the gravity and improving the support stability.

[0057] In this embodiment, the hinge seat 304 includes a seat body and a pin assembly 3044, and the pin assembly 3044 includes a matching pin and a split pin. Specifically, the seat body includes two side mounting plates 3041, a rear side plate 3043, and a bottom plate 3042. The two side mounting plates 3041 are arranged on the bottom plate 3042 in parallel and are welded and fixed to the bottom plate 3042. The rear end of the bottom plate 3042 is welded and fixed to the bottom end of the rear side plate 3043. At the same time, the rear side surfaces of the two side mounting plates 3041 are welded and fixed to the rear side plate 3043 before being correspondingly fitted. Therefore, the two side mounting plates 3041, the rear side plate 3043, and the bottom plate 3042 are welded and fixed to each other to improve the structural strength. Among them, the rear side surface of the rear side plate 3043 (that is, the rear side surface of the hinge seat 304) corresponds to the side wall of the rear column 203, and the rear side plate 3043 and the rear column 203 are bolted together by multiple bolt assemblies, and the bottom surface of the bottom plate 3042 (that is, the bottom surface of the hinge seat 304) corresponds to the top surface of the bottom column 202 and is bolted together by multiple bolt assemblies.

[0058] Axial holes are respectively provided on the two side mounting plates 3041, and a rotation hole is provided at one end of the screw rod 302. The pin shaft is movably installed in the two axis holes and is installed in the rotation hole, and the screw rod 302 is located between the two side mounting plates 3041, and then a split pin is installed on the pin shaft to realize the axial limit of the pin shaft. The distance between the two side mounting plates 3041 is D1, and the outer diameter of the screw rod 302 is D2, which satisfies: 0<D1-D2<10mm, that is, a small gap is left between the side mounting plates 3041 and the screw rod 302 to facilitate the rotation of the screw rod 302. The screw rod 302 and the sleeve 301 rotate as a whole to adapt to the rear part of the chopper 1 to be lifted to different heights. When the screw rod 302 and the hinge seat 304 need to be disassembled, it is only necessary to remove the split pin and then the pin shaft, and the screw rod 302 can be removed, which is relatively convenient and quick.

[0059] When the rear part of the chopper 1 needs to be raised or lowered (the chopper 1 rotates around the rotating shaft as a whole), the screw 302 and the sleeve 301 are rotated as a whole to adapt the distance between them and the groove; for example, in the initial state, the front end of the chopper 1 is against the front end of the mounting frame 2. At this time, when the rear part of the chopper needs to be raised, the screw 302 and the sleeve 301 are rotated as a whole to increase the angle between them and the horizontal plane, that is, to raise the closed end of the sleeve 301, and at the same time, the sleeve 301 is screwed to extend the sleeve 301 to increase the overall effective length of the sleeve 301 and the screw 302; on the contrary, when the chopper 1 needs to be lowered at a high position, the screw 302 and the sleeve 301 are rotated as a whole to reduce the angle between them and the horizontal plane, that is, to lower the closed end of the sleeve 301, and at the same time, the sleeve 301 is screwed to shrink the sleeve 301 to reduce the overall effective length of the sleeve 301 and the screw 302.

[0060] Example 2

[0061] This embodiment provides a chopper assembly, which differs from the embodiment 1 in that the support rod structure 3 in this embodiment includes an articulated seat 304 and an electric telescopic member, the electric telescopic member adopts an electric push rod, a cylinder or a hydraulic cylinder, one end of the cylinder body of the electric telescopic member is mounted on the mounting frame 2 through the articulated seat 304, and one end of the telescopic rod of the electric telescopic member can be placed in the groove to support and lift the chopper 1. When the groove of the chopper 1 is a through groove or a through hole, a T-shaped member can be set at one end of the telescopic rod of the electric telescopic member, and the T-shaped member includes a top column and a baffle, and the top column and the baffle are fixedly welded or are an integral structure, wherein the baffle is welded and fixed to one end of the telescopic rod of the electric telescopic member, and the telescopic rod is perpendicular to the baffle, and the telescopic rod is coaxially arranged with the top column. In fact, the top column can be inserted into the groove and pressed against the back side of the chopper 1 through the baffle, so as to realize the support and lifting of the chopper 1, and the lifting and lowering of the chopper 1 can be realized by the extension and retraction of the telescopic rod of the electric telescopic member.

[0062] Example 3

[0063] A harvester, comprising a chassis support 4 and the above-mentioned chopper assembly, such as Figure 5 and Figure 6 As shown; wherein, the chopper assembly is arranged at the rear of the chassis bracket 4, specifically, the mounting frame 2 is fixed on the chassis bracket 4, and the front side column 201 and the bottom column 202 of the frame are respectively fixed to the chassis bracket 4, that is, the front side column 201 and the bottom column 202 of the frame are fixedly connected through the chassis bracket 4.

[0064] The beneficial effects of the technical solution of the utility model are:

[0065] 1. The present application cancels the original bolt fixing method for the chopper 1, and the front part of the chopper 1 is rotatably mounted on the front end of the mounting frame 2 through the rotating shaft. The chopper 1 as a whole can rotate around the rotating shaft, and the rear side of the chopper 1 is movably supported by the support rod structure 3, so that the chopper 1 is supported and fixed; due to the movably supporting method of the support rod structure 3 for the chopper 1, it is convenient to remove the chopper 1. When the chopper 1 needs to be removed, it is only necessary to remove the support rod structure 3 and cancel the support of the support rod structure 3 for the chopper 1 to remove the chopper 1. Compared with the prior art, this supporting assembly method for the chopper 1 can realize disassembly and assembly without professional tools for removing bolts, and to a certain extent, it is convenient for the chopper 1 to be disassembled and assembled anytime and anywhere.

[0066] 2. Through the design of the through hole 3011 on the sleeve 301, when the sleeve 301 and the screw rod 302 need to be disassembled, no professional tools are needed to achieve disassembly. Specifically, a common rod such as a wooden stick, a branch or a thin iron rod is used to insert it into the through hole 3011, and then the rod is turned by hand to drive the sleeve 301 to rotate and loosen the sleeve 301 until the sleeve 301 is separated from the screw rod 302; when the screw rod 302 and the hinge seat 304 need to be disassembled, only the cotter pin and the pin shaft need to be removed, and the screw rod 302 can be removed. The disassembly and assembly between the various components of the support rod structure 3 is relatively convenient and quick.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

[0068] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A chopper assembly, comprising a chopper (1) and a mounting frame (2) for fixing the chopper (1), characterized in that: It also comprises a support rod structure (3), the chopper (1) is located in the inner cavity of the mounting frame (2), the front end of the chopper (1) is rotatably connected to the front end of the mounting frame (2) via a hinge structure, and the rear end of the chopper (1) is movably supported on the rear end and / or the bottom of the mounting frame (2) via the support rod structure (3).

2. The chopper assembly according to claim 1, characterized in that: The support rod structure (3) is respectively arranged at the left and right ends of the rear side of the chopper (1), and one end of the support rod structure (3) is connected to the chopper (1) and the other end is connected to the mounting frame (2).

3. The chopper assembly according to claim 2, characterized in that: The support rod structure (3) comprises a sleeve (301), a screw rod (302) and a hinge seat (304); One end of the screw rod (302) is mounted on the mounting frame (2) via the hinge seat (304); an internal thread is provided inside the sleeve (301); the other end of the screw rod (302) is mounted inside the sleeve (301) and is connected via a thread; The left and right ends of the rear side of the chopper (1) are respectively provided with grooves, and the other end of the sleeve (301) is located in the groove so as to lift up the chopper (1); At least one through hole (3011) is provided on the sleeve (301), and an angle exists between the axis of the through hole (3011) and the axis of the sleeve (301).

4. The chopper assembly according to claim 3, characterized in that: The other end of the sleeve (301) is a closed end, and the closed end of the sleeve (301) is provided with a top piece, the top piece is located in the groove and can block the rear side of the mounting frame (2) through the closed end.

5. The chopper assembly according to claim 3, characterized in that: The rear lower parts of the left and right ends of the chopper (1) are both inclined structures (204), and the groove is provided on the inclined structure (204); The hinge seat (304) has a bottom surface and a rear side surface, the bottom surface of the hinge seat (304) is correspondingly fitted with the bottom of the mounting frame (2), and the rear side surface of the hinge seat (304) is correspondingly fitted with the rear end of the mounting frame (2), and the hinge seat (304) and the mounting frame (2) are connected by bolts.

6. The chopper assembly according to claim 3, characterized in that: The screw rod (302) is also provided with a locking nut (303), which is threadedly connected to the screw rod (302) and can be tightly pressed against one end of the sleeve (301).

7. The chopper assembly according to claim 3, characterized in that: The hinge seat (304) includes a seat body and a pin shaft assembly (3044), and the pin shaft assembly (3044) includes a matching pin shaft and a cotter pin. An axial hole is arranged on the seat body, and a rotating hole is opened at one end of the screw rod (302). The pin shaft is movably installed in the axial hole and penetrates the rotating hole, and the cotter pin is installed on the pin shaft.

8. The chopper assembly according to claim 1, characterized in that: The hinge structure comprises a rotating shaft, which is arranged at the front end of the mounting frame along the left-right direction, and the front end of the chopper is rotatably connected to the front end of the mounting frame through the rotating shaft.

9. The chopper assembly according to claim 2, characterized in that: The support rod structure (3) comprises an articulated seat (304) and an electric telescopic member, wherein the electric telescopic member adopts an electric push rod, a cylinder or a hydraulic cylinder; The left and right ends of the rear side of the chopper (1) are respectively provided with grooves, one end of the cylinder body of the electric telescopic component is mounted on the mounting frame (2) via the hinge seat (304), and one end of the telescopic rod of the electric telescopic component is located in the groove so as to lift up the chopper (1).

10. A harvester, comprising a chassis support (4), characterized in that: Also includes a chopper assembly as claimed in any one of claims 1 to 9; Wherein, the chopper assembly is arranged at the rear of the chassis bracket (4).

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