A cutterbar drive and harvester

Abstract

The application provides a cutter driving device and a harvester, and relates to the field of cutter driving.The cutter driving device is arranged in an assembly component together with an electromagnetic component and a magnet component, and is connected with the cutter through the assembly component; when the electromagnetic component is powered, it can generate a continuous electromagnetic field, which interacts with a permanent magnetic field generated by the magnet component, that is, a traveling wave is formed to drive the cutter to move linearly back and forth; the driving mode generates a smaller exciting force, thereby reducing vibration excitation; in addition, the cutter driving device is also provided with a damping component, which specifically comprises an adjustable damping damping system; through the adjustable damping damping system, not only can the vibration (that is, the impact force) be buffered, but also the damping size can be adjusted according to the actual working condition, so as to attenuate the vibration as quickly as possible. In this way, the service life of the parts can be improved, and the operation comfort of the cutter can be ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cutter driving, in particular to a cutter driving device and a harvester. BACKGROUND

[0002] The cutter header is the main component of the harvesting machinery, which undertakes the task of cutting and feeding crops, and the cutter and its driving mechanism are one of the core components of the cutter header. The performance of the cutter and its driving mechanism not only affects the cutting quality, but also has an important impact on the service life of the components and the overall performance of the vehicle.

[0003] For the cutter, the left and right reciprocating linear movement is mainly realized by the cutter driving mechanism. At present, the cutter driving mechanism on the market is mainly dominated by the swing driving form represented by the swing ring box. However, the swing ring box will produce unbalanced inertial impact force during the left and right swing movement, which will reduce the service life of the components and the vibration will be transmitted to the cab, which will affect the comfort of the operator. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a cutter driving device and a harvester to solve the problem that the driving mechanism of the existing cutter will produce unbalanced inertial impact force, which will reduce the service life of the components and affect the comfort of the operator.

[0005] According to the above purpose, the first aspect of the present application provides a cutter driving device, wherein the cutter driving device comprises:

[0006] an assembly component capable of being connected with the cutter;

[0007] an electromagnetic component arranged inside the assembly component and capable of continuously generating an electromagnetic field;

[0008] a magnet component arranged inside the assembly component, and the electromagnetic component is sleeved on the outer circumferential side of the magnet component, and the magnet component is capable of generating a permanent magnetic field interacting with the electromagnetic field to form a traveling wave for driving the cutter to reciprocate linearly; and

[0009] a damping component comprising an adjustable damping vibration reduction system.

[0010] Preferably, the assembly component comprises a shell formed with a cavity, and the first end and the second end of the extension direction of the shell are provided with corresponding end covers.

[0011] Preferably, the assembly further includes a connecting shaft disposed in the cavity, the axial direction of the connecting shaft being the same as the extension direction of the housing; the end cap located at the first end of the extension direction of the housing is formed with a through hole corresponding to the connecting shaft, the first end of the connecting shaft in the axial direction passing through the through hole to be able to connect with the cutter;

[0012] A sealing element is also provided at the through hole.

[0013] Preferably, the electromagnetic component includes multiple iron cores and windings, both of which are formed in a ring structure, and the electromagnetic component is nested within the inner wall of the housing.

[0014] Preferably, the iron core and the winding are arranged alternately along the extending direction of the housing;

[0015] Alternatively, the outer surface of the iron core is formed with a groove, and the winding is wound around the inside of the groove.

[0016] Preferably, the magnet assembly is sleeved on the outer side of the connecting shaft, and a magnetic gap is formed between the outer side of the magnet assembly and the inner side of the electromagnetic assembly.

[0017] Along the axial direction of the connecting shaft, the magnet assembly includes permanent magnets and magnetic poles arranged alternately in sequence.

[0018] Preferably, the adjustable damping vibration reduction system is nested within the inner wall of the housing; and along the extending direction of the housing, two sets of the adjustable damping vibration reduction system are respectively distributed at both ends of the electromagnetic component; a magnetic shielding plate is provided between the adjustable damping vibration reduction system and the end of the electromagnetic component.

[0019] Preferably, the adjustable damping vibration reduction system includes a damping spring, an electromagnetic coil, and a magnetorheological elastomer; the damping spring is nested in the inner wall of the housing; the electromagnetic coil is disposed in the inner wall of the damping spring; and the magnetorheological elastomer is disposed in the inner wall of the electromagnetic coil.

[0020] Preferably, the vibration damping assembly further includes a vibration damping block fitted to one side of the two end caps located within the cavity.

[0021] According to a second aspect of the present invention, a harvester is provided, wherein the harvester is provided with a cutter drive device as described above.

[0022] According to the cutter drive device and harvester of the present invention, an electromagnetic component and a magnet component are disposed in an assembly assembly, and the device is then connected to the cutter via the assembly assembly. When the electromagnetic component is powered, it generates a continuous electromagnetic field. This electromagnetic field interacts with the permanent magnetic field generated by the magnet component, forming a traveling wave that drives the cutter in reciprocating linear motion. This driving method generates a smaller excitation force, thereby reducing vibration excitation. Furthermore, the cutter drive device of the present invention is also provided with a vibration damping component, specifically including an adjustable damping vibration damping system. This adjustable damping vibration damping system not only buffers vibration (i.e., impact force) but also allows the damping magnitude to be adjusted according to the actual working conditions to attenuate vibration as quickly as possible. This improves the service life of components and ensures the comfort of the cutter's operation.

[0023] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a cross-sectional view of a cutter drive device according to an embodiment of the present invention;

[0026] Figure 2 This is a cross-sectional view along the AA direction of the cutter driving device according to an embodiment of the present invention;

[0027] Figure 3 This is a cross-sectional view along the BB direction of a cutter driving device according to an embodiment of the present invention;

[0028] Figure 4 This is a cross-sectional view along the CC direction of a cutter drive device according to an embodiment of the present invention.

[0029] Icons: 11-Housing; 12-Connecting shaft; 13-Seal; 210-Winding; 211-Iron core; 310-Permanent magnet; 311-Magnetic pole; 312-Magnetic gap; 410-Damping spring; 411-Electromagnetic coil; 412-Magnetorheological elastomer; 413-Damping block; 414-Magnetic shielding plate. Detailed Implementation

[0030] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0031] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0032] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.

[0033] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0034] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0035] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.

[0036] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0037] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0038] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0039] According to a first aspect of the present invention, a cutter driving device is provided, such as... Figure 1 As shown, the cutter driving device in this embodiment includes an assembly assembly, an electromagnetic assembly, a magnet assembly, and a vibration damping assembly. The electromagnetic assembly, magnet assembly, and vibration damping assembly are all connected to the assembly assembly to ensure the integrity of the overall structure of the plate driving device. The specific connection and positional relationships of the various components of the cutter driving device according to the present invention will be described in detail below.

[0040] like Figures 1 to 4 As shown, the assembly component in this embodiment can be connected to the cutter to achieve the technical effect of driving the cutter to reciprocate. Specifically, as... Figure 1As shown, the assembly includes a housing 11 with a cavity, and corresponding end caps are provided at the first and second ends of the housing 11 in its extending direction. In this embodiment, the housing 11 is formed as a cylindrical structure, but it is not limited to this; for example, it can also be set as a cuboid structure. Further, the assembly also includes a connecting shaft 12 disposed in the cavity, the axial direction of the connecting shaft 12 being the same as the extending direction of the housing 11; the end cap located at the first end in the extending direction of the housing 11 forms a through hole corresponding to the connecting shaft 12, and the first end of the connecting shaft 12 in the axial direction passes through the through hole to be able to connect with the cutter; in addition, a sealing element 13 is provided at the through hole to prevent dust or debris from entering the housing 11 and affecting the working performance of each component, thereby ensuring the effectiveness of the electromagnetic component and the magnet component described below.

[0041] Thus, in this embodiment, the connecting shaft 12 can extend and retract through the through hole, meaning the connecting shaft 12 can perform linear motion. Furthermore, by using a controller and a suitable control algorithm, stepless speed regulation of the connecting shaft 12 can be achieved. In addition, while meeting the requirements for strength and reliability of the device, the connecting shaft 12 can be designed as a hollow structure to reduce the overall weight of the device.

[0042] In this embodiment, as Figures 1 to 3 As shown, the electromagnetic component includes multiple iron cores 211 and multiple windings 210. The windings 210 generate an electromagnetic field, while the iron cores 211 increase magnetic flux and reduce hysteresis loss to facilitate the formation of a magnetic circuit, thereby improving the performance of the device. Both the iron cores 211 and the windings 210 are formed in a ring shape. This electromagnetic component is nested within the inner wall of the housing 11. It should be noted that the connection between the electromagnetic component and the housing 11 is not fixed; for example, it can achieve a stable connection with the housing 11 through a tongue-and-groove fit or a snap-fit ​​connection. Thus, when power is supplied to the windings 210, the electromagnetic component can generate a continuous electromagnetic field.

[0043] More specifically, such as Figures 1 to 3 As shown, along the axial direction of the housing 11, the iron core 211 and the winding 210 are arranged alternately. However, the arrangement of the iron core 211 and the winding 210 is not limited to this. For example, a groove can be provided on the outer surface of the iron core 211. The groove is arranged radially around the outer side of the iron core 211, and the winding 210 is wound around the inside of the groove.

[0044] Furthermore, in this embodiment, such as Figure 1As shown, the magnet assembly is fitted onto the outer side of the connecting shaft 12 via an interference fit, meaning the magnet assembly can move linearly synchronously with the connecting shaft 12. Furthermore, a magnetic gap 312 is formed between the outer side of the magnet assembly and the inner side of the aforementioned electromagnetic assembly. This magnetic gap 312 reduces magnetic resistance, thereby improving the operating efficiency of the device. Along the axial direction of the connecting shaft 12, the magnet assembly includes alternating permanent magnets 310 and magnetic poles 311. The magnet assembly can generate a permanent magnetic field that interacts with the electromagnetic field, forming a traveling wave that drives the connecting shaft 12 in reciprocating linear motion, thus enabling the connecting shaft 12 to drive the cutter in reciprocating motion.

[0045] In this embodiment, as Figure 1 and Figure 4 As shown, the vibration damping assembly includes an adjustable damping vibration damping system, which is nested within the inner wall of the housing 11. Two sets of the adjustable damping vibration damping systems are distributed at both ends of the electromagnetic assembly along the extending direction of the housing 11. Further, a magnetic shielding plate 414 is provided between the adjustable damping vibration damping system and the end of the electromagnetic assembly. Specifically, the adjustable damping vibration damping system includes a damping spring 410, an electromagnetic coil 411, and a magnetorheological elastomer 412. The damping spring 410 is nested within the inner wall of the housing 11 to buffer vibrations; the electromagnetic coil 411 is disposed within the inner wall of the damping spring 410, and the magnetorheological elastomer 412 is disposed within the inner wall of the electromagnetic coil 411.

[0046] In other words, the electromagnetic coil 411 is wound around the outer periphery of the magnetorheological elastomer 412 so that the electromagnetic coil 411 can provide a variable magnetic field to the magnetorheological elastomer 412. That is, according to the needs of actual working conditions (for example, the magnitude of the current required in real time can be calculated by the controller), the magnitude of the current in the electromagnetic coil 411 can be adjusted to change the magnetic field strength acting on the magnetorheological elastomer 412, thereby changing the damping characteristics of the magnetorheological elastomer 412 to rapidly attenuate vibration.

[0047] It should be noted that the damping spring 410 and the magnetorheological elastomer 412 in this embodiment are arranged in parallel, but they can also be arranged in series, as long as the above-mentioned technical effect can be achieved.

[0048] In addition, the vibration damping assembly also includes a damping block 413 that fits into one side of the two end caps located in the cavity, which can further reduce the vibration generated during the operation of the device, thereby effectively ensuring the service life of each component and the driver's operating comfort.

[0049] According to the cutter drive device and harvester of the present invention as described above, the electromagnetic component and the magnet component are disposed in the assembly assembly, and the device is connected to the cutter through the assembly assembly. When the electromagnetic component is powered, it can generate a continuous electromagnetic field. This electromagnetic field interacts with the permanent magnetic field generated by the magnet component, forming a traveling wave to drive the cutter in reciprocating linear motion. This driving method generates a smaller excitation force, thereby reducing vibration excitation. In addition, the cutter drive device of the present invention is also provided with a vibration damping component, specifically including an adjustable damping vibration damping system. Through this adjustable damping vibration damping system, not only can vibration (i.e., impact force) be buffered, but the damping magnitude can also be adjusted according to the needs of actual working conditions to attenuate vibration as quickly as possible. In this way, the service life of the components can be improved, and the operating comfort of the cutter can be guaranteed.

[0050] According to a second aspect of the present invention, a harvester is provided, the harvester being provided with a cutter drive device as described above.

[0051] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be defined by the protection scope of the claims.

Claims

1. A cutting tool driving device, characterized in that, The cutter driving device includes: An assembly assembly is capable of being connected to a cutter; the assembly assembly includes a housing with a cavity; the assembly assembly also includes a connecting shaft disposed in the cavity; An electromagnetic component, disposed within the assembly assembly and capable of continuously generating an electromagnetic field; the electromagnetic component includes multiple iron cores and windings, both of which are formed in a ring structure, and the electromagnetic component is nested within the inner wall of the housing. A magnet assembly is disposed inside the assembly assembly, and an electromagnetic assembly is sleeved on the outer periphery of the magnet assembly. The magnet assembly is capable of generating a permanent magnetic field that interacts with the electromagnetic field to form a traveling wave for driving the cutter to reciprocate linearly. The magnet assembly is sleeved on the outer side of the connecting shaft, and a magnetic gap is formed between the outer side of the magnet assembly and the inner side of the electromagnetic assembly. Along the axial direction of the connecting shaft, the magnet assembly includes permanent magnets and magnetic poles arranged alternately in sequence. as well as A vibration damping assembly includes an adjustable damping vibration damping system; the adjustable damping vibration damping system is nested within the inner wall of the housing; and along the extension direction of the housing, two sets of the adjustable damping vibration damping systems are respectively distributed at both ends of the electromagnetic assembly; a magnetic shielding plate is provided between the adjustable damping vibration damping system and the end of the electromagnetic assembly; the adjustable damping vibration damping system includes a damping spring, an electromagnetic coil, and a magnetorheological elastomer; the damping spring is nested within the inner wall of the housing; the electromagnetic coil is disposed within the inner wall of the damping spring; the magnetorheological elastomer is disposed within the inner wall of the electromagnetic coil; the vibration damping assembly also includes a damping block fitted to one side of the two end caps located within the cavity.

2. The cutter driving device according to claim 1, characterized in that, The first and second ends of the shell along its extension direction are each provided with a corresponding end cap.

3. The cutter driving device according to claim 2, characterized in that, The axial direction of the connecting shaft is the same as the extension direction of the housing; the end cap located at the first end of the extension direction of the housing has a through hole corresponding to the connecting shaft, and the first end of the connecting shaft in the axial direction passes through the through hole so as to be able to connect with the cutter. A sealing element is also provided at the through hole.

4. The cutter driving device according to claim 3, characterized in that, Along the extending direction of the housing, the iron core and the winding are arranged alternately in sequence; Alternatively, the outer surface of the iron core is formed with a groove, and the winding is wound around the inside of the groove.

5. A harvester, characterized in that, The harvester is equipped with a cutter drive device as described in any one of claims 1 to 4.

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