Mower apparatus for agricultural working machine

Abstract

The present invention relates to a mower device for an agricultural work vehicle, and more specifically, to a mower device for an agricultural work vehicle capable of suppressing vibration caused by abnormal operation of the mower by adjusting the belt tension of the mower when vibration generated during the operation of the mower exceeds a reference value. The present invention provides a mower (100) device for an agricultural work vehicle (1) that rotates a blade (130) by having a pulley (110) and a belt (120), comprising: a vibration detection unit (140) that detects vibrations occurring during the operation of the mower (100); a tension adjustment unit (150) that adjusts the tension of the belt (120); and a control unit (160) that controls the tension of the belt (120) using the tension adjustment unit (150) when the magnitude of the vibrations occurring in the mower (100) is greater than a predetermined first reference value.

Description

Technology Field

[0001] The present invention relates to a mower device for an agricultural work vehicle, and more specifically, to a mower device for an agricultural work vehicle capable of suppressing vibration caused by abnormal operation of the mower by adjusting the belt tension of the mower when vibration generated during the operation of the mower exceeds a reference value. Background Technology

[0002] In agricultural work vehicles such as tractors, combines, and rice transplanters, various implements are attached according to the work to be performed at the work site. For example, in an agricultural work vehicle (1) such as a tractor illustrated in FIG. 1, various implements such as a rotary tiller, a soil covering machine, and a soil leveling machine are attached to the connecting link (5) to perform various tasks.

[0003] Furthermore, among the implements used in agricultural work vehicles (1), such as tractors, there is a mower used for mowing grass. As can be seen in FIG. 2, the mower (100) is typically mounted on the lower part of the agricultural work vehicle (1), such as a tractor, and rotates a blade using power transmitted from the agricultural work vehicle (1) to perform mowing work on grass.

[0004] At this time, the mower (100) according to the prior art is equipped with a pulley and a belt to rotate the blade, and to do this, an elastic body such as a spring is used to properly maintain the tension of the belt, or the operator adjusts the tension of the belt according to the working environment.

[0005] However, when the mower (100) is driven, if the mower is not properly discharged, the blade may not rotate normally, and slip may occur between the pulley and the belt that drive the blade. Furthermore, this may cause vibration in the mower (100), making it difficult to perform normal operations.

[0006] In this regard, when vibration occurs due to slip between the pulley and the belt of the mower (100), a method is required to adjust the tension of the belt so that the pulley (100) can operate smoothly, but no appropriate solution for this has yet been presented. Prior art literature

[0007] Republic of Korea Published Utility Model Publication No. 20-2008-0001308 (May 26, 2008) The problem to be solved

[0008] The present invention is devised to solve the above-mentioned problems and aims to provide a mower (100) device for an agricultural work vehicle (1) that can effectively suppress vibration caused by abnormal operation of the mower (100) by adjusting the tension of the belt when vibration occurs due to slip between the pulley and the belt of the mower (100) used in an agricultural work vehicle (1), such as a tractor.

[0009] Other detailed objectives of the present invention will be obvious to experts in the art or researchers through the specific details described below. means of solving the problem

[0010] A mower (100) device for an agricultural work vehicle (1) according to an embodiment of the present invention for solving the above-mentioned problem comprises: a vibration detection unit (140) for detecting vibrations occurring during the operation of the mower (100); a tension adjustment unit (150) for adjusting the tension of the belt (120); and a control unit (160) for controlling the tension of the belt (120) using the tension adjustment unit (150) when the magnitude of the vibration occurring in the mower (100) is greater than a predetermined first reference value.

[0011] At this time, the tension adjustment unit (150) is equipped with an actuator (151) capable of moving the pulley (110), and the control unit (160) can adjust the tension of the belt (120) by driving the actuator (151) to displace the position of the pulley (110) when the magnitude of the vibration generated during the operation of the mower (100) deviates from the predetermined first reference value.

[0012] Furthermore, the control unit (160) can adjust the tension of the belt (120) by controlling the actuator (151) to vary the amount of displacement of the pulley (110), so that the tension of the belt (120) can be adjusted according to the magnitude of the vibration generated in the mower (100).

[0013] Additionally, the control unit (160) can store and manage data regarding the vibration generated by the mower (100) when the magnitude of the vibration generated by the mower (100) is greater than a predetermined second reference value and less than or equal to a first reference value (wherein the second reference value < first reference value).

[0014] Additionally, the control unit (160) can stop the operation of the mower (100) when the magnitude of the vibration generated in the mower (100) is greater than the predetermined third reference value (where the third reference value > the first reference value). Effects of the invention

[0015] A mower (100) device for an agricultural work vehicle (1) according to one embodiment of the present invention has the effect of effectively suppressing vibration caused by abnormal operation of the mower (100) by adjusting the tension of the belt (120) when vibration occurs due to slip between the pulley (110) and the belt (120) of the mower (100) used in an agricultural work vehicle (1), such as a tractor. Brief explanation of the drawing

[0016] The accompanying drawings, which are included as part of the detailed description to aid in understanding the present invention, provide embodiments of the present invention and explain the technical concept of the present invention together with the detailed description. FIGS. 1 and FIGS. 2 are examples of a conventional agricultural work vehicle (1) and a mower (100) device mounted on the agricultural work vehicle (1). FIG. 3 is a configuration diagram of a mower (100) device according to one embodiment of the present invention. FIG. 4 is a diagram illustrating the operation of a mower (100) device according to one embodiment of the present invention. FIG. 5 is a flowchart of the operation of a mower (100) device for an agricultural work vehicle (1) according to one embodiment of the present invention. FIG. 6 is a diagram illustrating the operation according to the frequency of vibration of a mower (100) device for an agricultural work vehicle (1) according to one embodiment of the present invention. Specific details for implementing the invention

[0017] The present invention is capable of various modifications and may have various embodiments. Accordingly, specific embodiments will be described in detail below based on the attached drawings.

[0018] The following examples are provided to facilitate a comprehensive understanding of the methods, devices, and / or systems described herein. However, they are merely illustrative and the invention is not limited thereto.

[0019] In describing the embodiments of the present invention, if it is determined that a detailed description of known technology related to the present invention may unnecessarily obscure the essence of the present invention, such detailed description will be omitted. Furthermore, the terms described below are defined in consideration of their functions within the present invention, and these may vary depending on the intentions or practices of the user or operator. Therefore, such definitions should be based on the content throughout this specification. The terms used in the detailed description are intended merely to describe the embodiments of the present invention and should not be limiting in any way. Unless explicitly stated otherwise, expressions in the singular form include the meaning of the plural form. In this description, expressions such as "include" or "comprise" are intended to refer to certain characteristics, numbers, steps, actions, elements, parts thereof, or combinations thereof, and should not be interpreted to exclude the existence or possibility of one or more other characteristics, numbers, steps, actions, elements, parts thereof, or combinations thereof other than those described.

[0020] Additionally, terms such as first, second, etc., may be used to describe various components, but said components are not limited by said terms, and said terms are used only for the purpose of distinguishing one component from another.

[0021] First, FIG. 3 illustrates the configuration of a mower (100) device for an agricultural work vehicle (1) according to an embodiment of the present invention. As can be seen in FIG. 3, the mower (100) device for an agricultural work vehicle (1) according to an embodiment of the present invention is a mower (100) device for an agricultural work vehicle (1) that rotates a blade (130) by having a pulley (110) and a belt (120), and may be configured to include a vibration detection unit (140) that detects vibrations occurring during the operation of the mower (100), a tension adjustment unit (150) that adjusts the tension of the belt (120), and a control unit (160) that controls the tension of the belt (120) using the tension adjustment unit (150) when the magnitude of the vibration occurring in the mower (100) is greater than a predetermined first reference value.

[0022] Furthermore, in a mower (100) device for an agricultural work vehicle (1) according to one embodiment of the present invention, the tension adjustment unit (150) may be equipped with an actuator (151) capable of moving the pulley (110), and at this time, the control unit (160) can adjust the tension of the belt (120) by driving the actuator (151) to displace the position of the pulley (110) when the magnitude of the vibration generated during the operation of the mower (100) deviates from the first predetermined reference value.

[0023] Additionally, the control unit (160) can control the tension control unit (150) to displace the pulley (110) so that the tension of the belt (120) can be adjusted according to the magnitude of the vibration generated in the mower (100), thereby adjusting the tension of the belt (120).

[0024] Accordingly, in a mower (100) device for an agricultural work vehicle (1) according to one embodiment of the present invention, when vibration occurs due to slip between the pulley (110) and the belt (120) of the mower (100), the tension of the belt is adjusted to effectively suppress the occurrence of vibration due to abnormal operation of the mower (100).

[0025] In addition, Figure 4 illustrates a drawing explaining the operation of a mower (100) device for an agricultural work vehicle (1) configured according to one embodiment of the present invention.

[0026] Hereinafter, with reference to FIGS. 3 and FIGS. 4, a mower (100) device for an agricultural work vehicle (1) according to one embodiment of the present invention will be examined in more detail by dividing it into each component.

[0027] First, a mower (100) device for an agricultural work vehicle (1) according to one embodiment of the present invention is equipped with a pulley (110) and a belt (120) to rotate a blade (130).

[0028] At this time, as can be seen in FIG. 4, the pulley (110), the belt (120), and the blade (130) may be provided on a mower deck (170).

[0029] The pulley (110), the belt (120), the blade (130), and the moor deck (170) can be easily implemented according to the prior art, so a detailed description is omitted here.

[0030] In addition, the vibration detection unit (140) detects vibrations that occur during the operation of the mower (100).

[0031] At this time, the vibration detection unit (140) can be implemented using a vibration sensor, but the present invention is not necessarily limited thereto, and it is also possible to implement the vibration detection unit (140) using a motion sensor or various other sensors capable of detecting vibration of the mower (100).

[0032] Additionally, the vibration detection unit (140) may be mounted on the mower deck (170) to detect vibrations occurring during the operation of the mower (100), but the present invention is not necessarily limited thereto.

[0033] In addition, the tension adjustment unit (150) adjusts the tension of the belt (120).

[0034] Accordingly, the control unit (160) controls the tension of the belt (120) using the tension adjustment unit (150) when the magnitude of the vibration generated in the mower (100) is greater than a predetermined first reference value.

[0035] At this time, the tension adjustment unit (150) may be equipped with an actuator (151) capable of moving the pulley (110), and accordingly, the control unit (160) can adjust the tension of the belt (120) by driving the actuator (151) to displace the position of the pulley (110) when the magnitude of the vibration generated during the operation of the mower (100) deviates from the predetermined first reference value.

[0036] More specifically, to explain the specific operation of the tension adjustment unit (150), the area (A) of FIG. 4(a) is enlarged and shown in FIG. 4(b).

[0037] As can be seen in FIG. 4(b), when the magnitude of the vibration generated during the operation of the mower (100) deviates from the predetermined first reference value, the control unit (160) drives the actuator (151), thereby displaces the position of the pulley (110) ((B1), (B2) in FIG. 4(b)) and adjusts the tension of the belt (120).

[0038] Furthermore, the control unit (160) may drive the actuator (151) to move the pulley (110) in a first direction ((B2) in FIG. 4(b)) to reduce the tension of the belt (120) and resolve slip between the pulley (110) and the belt (120) and the resulting vibration, but the present invention is not necessarily limited thereto, and if necessary, the control unit (160) may drive the actuator (151) to move the pulley (110) in a second direction ((B1) in FIG. 4(b)) to increase the tension of the belt (120) to a predetermined level so that the pulley (110) and the belt (120) operate smoothly.

[0039] At this time, the actuator (151) may be a hydraulic actuator driven by hydraulics, but the present invention is not necessarily limited thereto, and it is also possible to configure the tension control unit (150) using various actuators (151) capable of displacing the position of the pulley (110), such as an electric actuator.

[0040] In addition, in a mower (100) device for an agricultural work vehicle (1) according to one embodiment of the present invention, the control unit (160) can control the tension control unit (150) to displace the pulley (110) so that the tension of the belt (120) can be adjusted to a tension control value determined according to the magnitude of the vibration occurring in the mower (100), thereby adjusting the tension of the belt (120).

[0041] For a more specific example, the pulley (110) is displaced by 1 cm when the magnitude of the vibration generated in the mower (100) falls within range A, and the pulley (110) is displaced by 2 cm when the magnitude of the vibration falls within range B, which is greater than range A, thereby allowing the tension of the belt (120) to be adjusted more efficiently according to the magnitude of the vibration generated in the mower (100) and thus enabling response to vibrations caused by abnormal operation of the mower (100).

[0042] In addition, FIG. 5 illustrates a flowchart of the operation of a mower (100) device for an agricultural work vehicle (1) according to one embodiment of the present invention.

[0043] Hereinafter, the operation of the mower (100) device for an agricultural work vehicle (1) according to one embodiment of the present invention will be explained in more detail with reference to FIG. 5.

[0044] First, as can be seen in FIG. 5, the vibration detection unit (140) detects vibrations that occur during the operation of the mower (100) (S110).

[0045] Accordingly, the control unit (160) receives and verifies the vibration measurement detected from the vibration detection unit (140) (S120).

[0046] Next, the control unit (160) compares the vibration measurement with a second reference value (S130).

[0047] At this time, if the vibration measurement is smaller than the second reference value, the control unit (160) controls the mower (100) device to continue operating (S131).

[0048] In addition, if the vibration measurement is greater than or equal to the second reference value, the control unit (160) compares the vibration measurement with the first reference value (S140).

[0049] At this time, if the vibration measurement value is smaller than the first reference value, the control unit (160) stores and manages data regarding the vibration occurring in the mower (100) (S141).

[0050] In addition, if the vibration measurement is greater than or equal to the first reference value, the control unit (160) compares the vibration measurement with the third reference value (S150).

[0051] At this time, if the vibration measurement is smaller than the third reference value, the control unit (160) controls the tension of the belt (120) using the tension adjustment unit (150) (S151).

[0052] Furthermore, the control unit (160) can control the tension control unit (150) to displace the pulley (110) so that the tension of the belt (120) can be adjusted according to the magnitude of the vibration generated in the mower (100), thereby adjusting the tension of the belt (120).

[0053] On the other hand, if the above vibration measurement is greater than or equal to the above third reference value, the control unit (160) stops the operation of the mower (100) (S160) and further notifies the user of the problem situation through a warning light, etc. (S170).

[0054] Accordingly, the mower (100) device for an agricultural work vehicle (1) according to one embodiment of the present invention can effectively suppress vibration caused by abnormal operation of the mower (100) by adjusting the tension of the belt (120) when vibration occurs due to slip between the pulley (110) and the belt (120) of the mower (100) used in an agricultural work vehicle (1), such as a tractor.

[0055] In addition, FIG. 6 explains the operation according to the frequency of vibration of the mower (100) device for an agricultural work vehicle (1) according to one embodiment of the present invention.

[0056] At this time, when vibration occurs due to the driving of the mower (100), the control unit (160) can determine whether to control the tension of the belt (120) using the tension control unit (150) by considering whether the frequency of the vibration falls within a predetermined frequency range.

[0057] As a more specific example, as can be seen in FIG. 6, in a mower (100) device for a work vehicle (1) according to one embodiment of the present invention, the control unit (160) can adjust the tension of the belt (120) using the tension adjustment unit (150) when vibration occurs at a first frequency (f1 in FIG. 6) that falls within a first frequency range that may occur due to slip between the pulley (110) and the belt (120) during the operation of the mower (100), but when vibration occurs at a second frequency (f2 in FIG. 6) that does not fall within the first frequency range during the operation of the mower (100), it is determined that the vibration is not caused by slip between the pulley (110) and the belt (120), and the tension of the belt (120) can not be adjusted using the tension adjustment unit (150).

[0058] Accordingly, in the mower (100) device for an agricultural work vehicle (1) according to one embodiment of the present invention, malfunctions that may occur when adjusting the tension of the belt (120) by simply considering only the magnitude of the vibration are prevented, and the tension of the belt (120) can be controlled more accurately.

[0059] The foregoing description is merely an illustrative explanation of the technical concept of the present invention, and those skilled in the art to which the present invention pertains will be able to make various modifications, changes, and substitutions within the scope of the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are intended to explain, not limit, the technical concept of the present invention, and the scope of the technical concept of the present invention is not limited by such embodiments and accompanying drawings. The scope of protection of the present invention shall be interpreted by the claims below, and all technical concepts within an equivalent scope shall be interpreted as being included within the scope of rights of the present invention. Explanation of the symbols

[0060] (1) : Agricultural work vehicle (2) : Vehicle body (5) : Links (100) : More (110) : Pulley (120) : Belt (130) : Blade (140) : Vibration sensing unit (150) : Tension control unit (151) : Actuator (160) : Control unit (170) : More deck

Claims

Claim 1 A mower (100) device for an agricultural work vehicle (1) that rotates a blade (130) by being equipped with a pulley (110) and a belt (120), comprising: a vibration detection unit (140) that detects vibrations occurring during the operation of the mower (100); and a tension adjustment unit (150) that adjusts the tension of the belt (120). The control unit (160) controls the tension of the belt (120) using the tension control unit (150) when the magnitude of the vibration generated in the mower (100) is greater than a predetermined first reference value; wherein the tension control unit (150) is equipped with an actuator (151) capable of moving the pulley (110); the control unit (160) controls the tension of the belt (120) by driving the actuator (151) to displace the position of the pulley (110) when the magnitude of the vibration generated during the operation of the mower (100) deviates from the predetermined first reference value; the control unit (160) receives a vibration measurement value detected from the vibration detection unit (140) to check the magnitude of the vibration generated in the mower (100); and the control unit (160) controls the tension control value determined according to the magnitude of the vibration generated in the mower (100). A mower (100) device for an agricultural work vehicle (1), characterized by controlling the actuator (151) to adjust the tension of the belt (120) so that the amount of displacement of the pulley (110) is varied. Claim 2 delete Claim 3 delete Claim 4 A mower (100) device for an agricultural work vehicle (1), characterized in that, in the first paragraph, the control unit (160) stores and manages data regarding the vibration generated by the mower (100) such that when the magnitude of the vibration generated by the mower (100) satisfies the following equation, the second reference value < magnitude of vibration ≤ first reference value. Claim 5 A mower (100) device for an agricultural work vehicle (1), characterized in that, in the first paragraph, the control unit (160) stops the operation of the mower (100) when the magnitude of the vibration generated in the mower (100) satisfies the following equation: magnitude of vibration > third reference value > first reference value.

Images