Multi-purpose cutting knife with wide adaptability

Abstract

The utility model provides a multi-purpose and wide-adaptability cutting knife, and aims to solve the technical problem that the harvesting effect and efficiency are easily affected when an existing harvester with a replaceable cutting table is used. The cutting knife comprises a connecting part connected with a harvester support; the first telescopic assembly is arranged on the connecting part; the second telescopic assembly is arranged at the telescopic end of the first telescopic assembly, and the movement direction of the telescopic end of the first telescopic assembly is perpendicular to the movement direction of the telescopic end of the second telescopic assembly; the expansion assembly is arranged at the telescopic end of the first telescopic assembly; the chain is of an annular structure, the telescopic end of the second telescopic assembly and the expansion assembly are sleeved with the chain, and a plurality of blades are arranged on the chain. The chain is driven by the first telescopic assembly to move in the vertical direction, then the arrangement width of the chain is controlled through the second telescopic assembly and the expansion assembly, and therefore the harvester adapts to harvesting of different crops.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of agricultural machinery, and concretely relates to a multipurpose wide adaptability cutter. BACKGROUND

[0002] The harvester is an important equipment in agricultural production, and the cutter mechanism is a key component of the harvester. The traditional cutter mechanism can usually only harvest specific crops, such as rice and wheat.

[0003] However, with the development of diversified agricultural production, the demand for cutter machines capable of harvesting multiple crops is increasing. The existing replaceable cutter table is prone to problems such as forward tilting, planting head, etc. when harvesting different crops, affecting the harvesting effect and efficiency. SUMMARY

[0004] In view of the technical problem that the existing replaceable cutter table of the harvester is prone to affecting the harvesting effect and efficiency during use, the utility model provides a multipurpose wide adaptability cutter, which drives the chain to move in the vertical direction through the first telescopic assembly, and then controls the width of the chain arrangement through the second telescopic assembly and the expansion assembly, so that the harvester can adapt to the harvesting of different crops.

[0005] The technical scheme of the utility model is:

[0006] A multipurpose wide adaptability cutter, comprising:

[0007] A connecting part connected with the harvester support;

[0008] A first telescopic assembly provided on the connecting part;

[0009] A second telescopic assembly provided on the telescopic end of the first telescopic assembly, and the movement direction of the telescopic end of the first telescopic assembly is perpendicular to the movement direction of the telescopic end of the second telescopic assembly;

[0010] An expansion assembly provided on the telescopic end of the first telescopic assembly;

[0011] A chain in a ring structure and sleeved on the telescopic end of the second telescopic assembly and the expansion assembly, and a plurality of blades are provided on the chain.

[0012] Optionally, a workbench is provided on the telescopic end of the first telescopic assembly;

[0013] The second telescopic assembly and the expansion assembly are both provided on the workbench.

[0014] Optionally, it further comprises:

[0015] A support assembly symmetrically provided on both ends of the workbench with the second telescopic assembly;

[0016] The chain is sleeved on the support assembly.

[0017] Optionally, the support assembly comprises a driven sprocket and a driving rod driving the driven sprocket.

[0018] Optionally, the expansion assembly comprises:

[0019] An expansion motor is arranged on the workbench;

[0020] A connecting piece is arranged on an output shaft of the expansion motor, and a rotation axis of the connecting piece is parallel to a movement direction of the telescopic end of the first telescopic assembly.

[0021] An expansion sprocket is rotatably arranged on the other end of the connecting piece.

[0022] The chain is sleeved on the expansion sprocket.

[0023] Optionally, the first telescopic assembly comprises:

[0024] A plurality of linear motion parts are uniformly distributed on the connecting part in a ring shape.

[0025] A plurality of lifting parts correspond to the linear motion parts one by one, one end of the lifting part is rotatably arranged on the movable end of the linear motion part, and the other end of the lifting part is rotatably connected with the second telescopic assembly.

[0026] The movement direction of the movable end of the linear motion part is perpendicular to the movement direction of the one end of the lifting part connected with the second telescopic assembly.

[0027] Optionally, all the one ends of the lifting parts away from the linear motion parts are rotatably arranged on a connecting plate, and the connecting plate is the telescopic end of the first telescopic assembly.

[0028] Optionally, the second telescopic assembly comprises a driving sprocket and a driving motor driving the driving sprocket to rotate, and the chain is sleeved on the driving sprocket.

[0029] Optionally, the second telescopic assembly further comprises:

[0030] A telescopic rod is arranged on the telescopic end of the first telescopic assembly, and an end of the telescopic rod is fixedly provided with the driving motor.

[0031] Optionally, the connecting part comprises a mounting plate, two first telescopic assemblies are arranged between the mounting plate and the second telescopic assembly, and the two first telescopic assemblies move synchronously.

[0032] Compared with the prior art, the utility model has the beneficial effects that:

[0033] The first telescopic assembly drives the chain to move in the vertical direction, and then the second telescopic assembly and the expansion assembly control the width of the chain arrangement, so that the harvester is adapted to the harvesting of different crops. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0035] Figure 1 It is a perspective view of the first telescopic assembly;

[0036] Figure 2 It is a perspective view of the second telescopic assembly and the expansion mechanism;

[0037] Figure 3 It is a schematic view of the bottom structure of the present application;

[0038] Figure 4 It is a perspective view of the workbench;

[0039] Figure 5 It is a top view of the second telescopic assembly and the expansion mechanism. DETAILED DESCRIPTION

[0040] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0041] In addition, the terms "first", "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0042] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. For the sake of simplicity, the description below of the specific examples will not be exhaustive of the application. Indeed, the application will be described with additional specificity and detail in order to meet statutory requirements. Moreover, the same numerals will be used throughout the several drawings to reference like or similar items.

[0043] The embodiments of the present application will be described in detail below with reference to the drawings. Embodiment

[0044] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the embodiment discloses a multi-purpose and widely applicable cutter, comprising a connecting part 10, a first telescopic assembly 20, a second telescopic assembly 30, an expansion assembly 40, a chain 50 and a blade 60. Wherein, the connecting part 10 is used for mounting the cutter on a harvester, the first telescopic assembly 20 is mounted on the connecting part 10, the second telescopic assembly 30 is connected with the telescopic end of the first telescopic assembly 20, the chain 50 is of a ring structure, the chain 50 is sleeved on the expansion assembly 40 and the second telescopic assembly 30, and a plurality of blades 60 are mounted on the chain 50.

[0045] In operation, the first telescopic assembly 20 drives the chain 50 and the blade 60 to move in the vertical direction, and the second telescopic assembly 30 and the expansion assembly 40 are used for driving the chain 50 to change shape, so as to adapt to the harvesting of different crops.

[0046] Specifically, the movement direction of the first telescopic assembly 20 is perpendicular to the movement direction of the telescopic end of the second telescopic assembly 30, and the expansion assembly 40 is also arranged on the telescopic end of the first telescopic assembly 20, and the first telescopic assembly 20 directly drives the second telescopic assembly 30, the expansion assembly 40, the chain 50 and the blade 60 to move together.

[0047] Through the technical scheme, when different crops are harvested, the cutter does not need to be replaced, and only needs to be sequentially changed through the first telescopic assembly 20, the second telescopic assembly 30 and the expansion assembly 40, so as to change the state of the chain 50, and further change the crop varieties that can be harvested by the cutter.

[0048] In one specific embodiment:

[0049] The cutting knife further comprises a workbench 70 and a supporting assembly 80, wherein the telescopic end of the first telescopic assembly 20 is connected with the workbench 70, the supporting assembly 80, the second telescopic assembly 30 and the expansion assembly 40 are arranged on the workbench 70, and the chain 50 is arranged around the circumference of the workbench 70.

[0050] Specifically, one section of the chain 50 is arranged around the telescopic end of the second telescopic assembly 30, and another section of the chain 50 is arranged around the supporting assembly 80, and the chain 50 is straightened through the supporting assembly 80 and the second telescopic assembly 30.

[0051] The expansion assembly 40 is located between the second telescopic assembly 30 and the supporting assembly 80, and the expansion assembly 40 is matched with the middle part of the chain 50.

[0052] In the embodiment, the workbench 70 is arranged to enable the supporting assembly 80, the second telescopic assembly 30 and the expansion assembly 40 to move synchronously smoothly, and the supporting assembly 80 and the expansion assembly 40 are arranged to enable the first telescopic assembly 20 to ensure that the chain 50 is always in a straightened state when the chain 50 is changed in shape by driving.

[0053] Preferably, the supporting assembly 80 comprises a driven sprocket 81 and a driving rod 82, one end of the driving rod 82 is fixedly arranged on the workbench 70, and the other end of the driving rod 82 is rotationally connected with the driven sprocket 81, wherein the length direction of the driving rod 82 is parallel to the tabletop of the workbench 70, and the rotation axis of the driven sprocket 81 is perpendicular to the tabletop of the workbench 70, and the chain 50 is arranged around the driven sprocket 81.

[0054] In addition, the driving rod 82 has the characteristic of being able to be telescopic, generally, the driving rod 82 can be selected as a hydraulic cylinder, the cylinder body of the hydraulic cylinder is fixed on the workbench 70, and the driven sprocket 81 is rotationally arranged at the piston end of the hydraulic cylinder.

[0055] Generally, the movement direction of the piston is in the same straight line as the movement direction of the telescopic end of the second telescopic assembly 30.

[0056] In the technical solution, the supporting assembly 80 is also arranged as a telescopic structure, so that the supporting assembly 80 can cooperate with the second telescopic assembly 30 and the expansion assembly 40 to quickly and effectively change the shape of the chain 50.

[0057] In another specific embodiment,

[0058] The expansion assembly 40 comprises an expansion motor 41, a connecting piece 42 and an expansion sprocket 43, wherein the expansion motor 41 is arranged on the workbench 70, and the output shaft of the expansion motor 41 is arranged in a direction perpendicular to the tabletop of the workbench 70. The output shaft of the expansion motor 41 is connected with one end of the connecting piece 42 perpendicularly, and the other end of the connecting piece 42 is rotationally connected with the expansion sprocket 43.

[0059] The output shaft axis of the expansion motor 41 is parallel to the axis of the expansion sprocket 43, and the length direction of the connecting piece 42 is perpendicular to the axis of the expansion sprocket 43.

[0060] The aforementioned chain 50 is wound around the expansion sprocket 43.

[0061] In this embodiment, when the structure formed by the first telescopic component 20 driving the chain 50 becomes shorter, the expansion motor 41 drives the connector 42 to rotate at a small angle (0° to 90°), and drives the expansion sprocket 43 to expand outward through the connector 42, thereby widening the middle part of the chain 50, thus ensuring that the chain 50 is always in a taut state.

[0062] In another specific embodiment:

[0063] The first telescopic component 20 includes a linear motion part 21 and a lifting part 22. The linear motion part 21 is disposed on the connecting part 10, and a plurality of linear motion parts 21 are distributed in a ring on the connecting part 10.

[0064] Each linear motion part 21 is equipped with a lifting part 22. One end of the lifting part 22 is rotatably mounted on the linear motion part 21, and the other end of the lifting part 22 is rotatably mounted on the second telescopic assembly 30.

[0065] The other end of the lifting part 22 is generally directly rotatably connected to the worktable 70, thereby indirectly connecting the end of the lifting part 22 and the second telescopic component 30 through the worktable 70.

[0066] The direction of motion of the movable end of the linear motion unit 21 is perpendicular to the direction of motion of the lifting unit 22 connected to the upper end of the second telescopic assembly 30.

[0067] In this embodiment, all linear motion units 21 drive the ends of all lifting units 22 to move towards the center, thereby causing the other ends of the lifting units 22 to move away from the connecting part 10, thus driving the movement of components such as the worktable 70 and the second telescopic assembly 30. Furthermore, when different linear motion units 21 move in different directions, the tilt angles of different lifting units 22 relative to the connecting part 10 are different, causing components such as the worktable 70 and the second telescopic assembly 30 to tilt.

[0068] Preferably, the linear motion unit 21 also includes a hydraulic cylinder, and the end of the lifting unit 22 is rotatably disposed on the piston end of the hydraulic cylinder. Of course, the linear motion unit 21 can also be a structure in which a motor drives a lead screw nut to move, in which case the end of the lifting unit 22 is rotatably disposed on the nut.

[0069] The aforementioned lifting unit 22 includes a connecting rod, the two ends of which are rotatably connected to the worktable 70 and the linear motion unit 21, respectively.

[0070] In another preferred technical solution, in order to facilitate the production of parts and the installation and cooperation between multiple parts, all lifting parts 22 are rotationally connected to the circumference of a connecting plate 23 at one end away from the linear motion part 21, and the connecting plate 23 is fixedly installed on the workbench 70 through connecting members 42 such as bolts. At this time, the connecting rod is the telescopic end of the first telescopic assembly 20.

[0071] In another specific embodiment,

[0072] The second telescopic assembly 30 includes a driving sprocket 31, a driving motor (not shown in the figure) and a telescopic rod 32. Among them, the driving sprocket 31 is coaxially arranged on the output shaft of the driving motor, the driving motor is arranged on one end of the telescopic rod 32, the telescopic rod 32 is arranged on the workbench 70, and the chain 50 is sleeved on the driving sprocket 31.

[0073] Specifically, the output shaft of the driving motor is arranged in a direction perpendicular to the table surface of the workbench 70, and the length direction of the telescopic rod 32 is perpendicular to the output shaft of the driving motor. The telescopic rod 32 can be the same structure as the driving rod 82 in the supporting assembly 80.

[0074] During work, the telescopic rod 32 drives the driving sprocket 31 to change position, thereby adjusting the length of the structure surrounded by the chain 50. By arranging the driving motor, the entire chain 50 is driven to rotate, the blade 60 is moved by the chain 50, and the stems of crops are cut.

[0075] In addition, in the present application, it should be noted that the spacing of the driven sprocket 81, the expansion sprocket 43 and the driving sprocket 31 relative to the table surface of the workbench 70 is equal.

[0076] In another specific embodiment,

[0077] The connecting part 10 includes a mounting plate, two first telescopic assemblies 20 are arranged between the mounting plate and the second telescopic assembly 30, and the two first telescopic assemblies 20 move synchronously.

[0078] By arranging multiple first telescopic assemblies 20, the stability of the workbench 70, the chain 50, the second telescopic assembly 30, the expansion assembly 40 and the supporting assembly 80 can be improved.

[0079] The above-described embodiments only express the specific implementation of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application.

Claims

1. A multi-purpose, multi-purpose utility knife, characterized in that, The utility model relates to a multi-purpose and widely applicable cutter, which comprises a connecting part connected with a harvester support, a first telescopic assembly arranged on the connecting part, a second telescopic assembly arranged on the telescopic end of the first telescopic assembly, the movement direction of the telescopic end of the first telescopic assembly being perpendicular to the movement direction of the telescopic end of the second telescopic assembly, an expansion assembly arranged on the telescopic end of the first telescopic assembly, a chain in a ring structure and sleeved on the telescopic end of the second telescopic assembly and the expansion assembly, and a plurality of blades arranged on the chain.

2. The multi-purpose and widely applicable cutter according to claim 1, wherein a workbench is arranged on the telescopic end of the first telescopic assembly; and the second telescopic assembly and the expansion assembly are arranged on the workbench. The utility model further comprises support assemblies symmetrically arranged on both ends of the workbench in correspondence with the second telescopic assembly; and the chain is sleeved on the support assemblies. The support assembly comprises a driven sprocket and a driving rod for driving the driven sprocket. The expansion assembly comprises an expansion motor arranged on the workbench; a connecting part having one end arranged on the output shaft of the expansion motor, the rotation axis of the connecting part being parallel to the movement direction of the telescopic end of the first telescopic assembly; an expansion sprocket rotatably arranged on the other end of the connecting part; and the chain is sleeved on the expansion sprocket. The first telescopic assembly comprises a plurality of linear motion parts uniformly distributed in a ring shape on the connecting part; and a plurality of lifting parts corresponding to the linear motion parts, one end of each lifting part being rotatably arranged on the movable end of the corresponding linear motion part, and the other end of each lifting part being rotatably connected with the second telescopic assembly. The other ends of all the lifting parts away from the linear motion parts are rotatably arranged on a connecting plate, and the connecting plate is the telescopic end of the first telescopic assembly. The second telescopic assembly comprises a driving sprocket and a driving motor for driving the driving sprocket to rotate, and the chain is sleeved on the driving sprocket. The second telescopic assembly further comprises a telescopic rod arranged on the telescopic end of the first telescopic assembly, and the end of the telescopic rod is fixedly provided with the driving motor.

3. The utility knife of claim 2, wherein, The connecting part comprises a mounting plate, two first telescopic assemblies are arranged between the mounting plate and the second telescopic assembly, and the two first telescopic assemblies move synchronously. ​ ​ 4. The utility knife of claim 3, wherein, ​ 5. The utility knife of claim 2, wherein, ​ ​ ​ ​ ​ 6. The utility knife of claim 1, wherein, ​ ​ ​ ​ 7. The utility knife of claim 6, wherein, ​ 8. The utility knife of claim 1, wherein, ​ 9. The utility knife of claim 8, wherein, ​ ​ 10. The utility knife of claim 1, wherein, ​

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