Mower module for tractor

Abstract

A mower module for a tractor according to an embodiment of the present invention connects to and is driven by a power transmission unit of the tractor and comprises: PTO couplings receiving driving power from the tractor; a cutting apparatus that connects to the PTO couplings to receive driving power; a mower deck to which the cutting apparatus and PTO couplings attach; a front link unit which is provided on one side of the mower deck, and which connects to the tractor during forward movement thereof; guide members provided on both widthwise-sides of the PTO couplings to guide the movement of the power transmission unit; and a guide, protruding from the top of the mower deck, for guiding the movement of the tractor.

Description

Mower module for tractor

[0001] The present invention relates to a mower module for a tractor, and more particularly, to a mower module for a tractor that can be easily connected to or disconnected from a tractor using a one-touch connection method.

[0002] Typically, a mower device is a device that cuts grass or other grasses using high-speed rotating cutting blades. The cutting blades of a mower device are powered by its own power source or by an external power source.

[0003] Mowers, powered by an external power source, are detachably installed on tractors and other vehicles. With the introduction of compact tractors, demand for mowers attached to these machines for gardens, parks, lawns, and other areas is increasing. Mowers are powered by the tractor's powertrain.

[0004] However, conventional mowers have the inconvenience of requiring the operator to manually connect and disconnect them from the tractor. Furthermore, because the operator must connect and disconnect the mower attachment to the tractor's connecting structure, the time required to install and remove the mower increases. Furthermore, because the operator must perform the installation and removal from the underside of the tractor, the installation and removal process can be difficult.

[0005] Therefore, there is a need for research on a mower device that can be easily attached to a tractor.

[0006] The present invention has been devised to solve the above-mentioned problems, and the purpose of the invention is to provide a mower module for a tractor that can be easily attached to and detached from a tractor.

[0007] A mower module for a tractor according to one embodiment of the present invention is connected to and driven by a power transmission unit of a tractor, and includes: a second PTO coupling that receives power from the tractor; a cutting device that is connected to the second PTO coupling and receives power; and a mower deck to which the cutting device and the second PTO coupling are coupled; wherein a first group may be provided at an end of the first PTO coupling, and a second group may be provided at an end of the second PTO coupling in a shape that engages with the first group.

[0008] In addition, the first group may be provided in a plurality of circumferential directions at the end of the first PTO coupling, and the second group may be provided in a plurality of circumferential directions at the end of the second PTO coupling.

[0009] In addition, the second clause may be provided so that the circumferential width becomes narrower as it goes outward in the horizontal direction from the end of the second coupling.

[0010] Additionally, the second clause may include a horizontal protrusion part protruding horizontally from the end of the second coupling and a diagonal protrusion part protruding diagonally.

[0011] In addition, the second clause may be provided in multiple pieces, and a breakage prevention groove may be provided between the multiple second clauses.

[0012] Additionally, the first PTO coupling and the second PTO coupling may be provided with a dog clutch.

[0013] In addition, the machine may further include a front link portion provided on one side of the mower deck and restrained to the tractor when the tractor moves forward; a guide member provided on both sides of the width direction of the PTO coupling to guide movement of the power transmission portion; and a guide guide protruding from the upper portion of the mower deck to guide movement of the tractor.

[0014] In addition, the front link portion may include a pair of front links extending forward of the mower deck; a catch bar provided at a front end of the front link and selectively inserted into the tractor; at least one connecting link connecting the front link in the width direction; a mounting bracket rotatably connecting a rear end of the front link to the mower deck; and a wheel module provided between the front links and in contact with the ground to support a lower portion of the front link.

[0015] In addition, the wheel module includes a wheel housing connected to the mounting bracket; a slide bar having one end fixed to the connecting link and the other end slidably connected to the wheel housing; an elastic member connected to the slide bar and the wheel housing to apply an elastic force in a direction of upwardly rotating the front end of the front link; and a wheel rotatably connected to the wheel housing and in contact with the ground; wherein the elastic member can determine an initial position of the hook bar.

[0016] A mower module for a tractor according to one embodiment of the present invention has the effect of being easily attached to and detached from a tractor using a one-touch fastening method.

[0017] FIG. 1 is a partial side view of a tractor including a mower module for a tractor according to one embodiment of the present invention.

[0018] Figure 2 is a schematic perspective view of a power transmission unit according to one embodiment of the present invention.

[0019] Figure 3 is a partial perspective view of a power transmission unit according to one embodiment of the present invention.

[0020] FIG. 4 is a schematic partial perspective view showing the first PTO coupling and the second PTO coupling according to one embodiment of the present invention.

[0021] FIG. 5 is a schematic side view illustrating a first PTO coupling and a second PTO coupling according to one embodiment of the present invention.

[0022] FIG. 6 is a schematic perspective view illustrating a first PTO coupling and a second PTO coupling connected according to one embodiment of the present invention.

[0023] Figure 7 is a schematic perspective view of a second PTO coupling according to one embodiment of the present invention.

[0024] Figure 8a is a side view showing the appearance of the tractor mower module just before being coupled to the tractor, and Figure 8b is a side view showing the tractor mower module being coupled to the tractor.

[0025] FIG. 9 is a schematic perspective view of a mower module for a tractor according to one embodiment of the present invention.

[0026] FIG. 10 is a partial perspective view showing a power transmission unit connected to a mower module for a tractor according to one embodiment of the present invention.

[0027] Hereinafter, specific embodiments for implementing the idea of ​​the present invention will be described in detail with reference to the drawings.

[0028] In addition, when explaining the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description is omitted.

[0029] Additionally, when it is said that a component is 'connected to', 'supported by', or 'in contact with' another component, it should be understood that it may be directly connected to, supported by, or in contact with that other component, but there may also be other components present in between.

[0030] The terminology used herein is intended solely to describe specific embodiments and is not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

[0031] Additionally, please note that the terms "upper side," "lower side," and "side" in this specification are based on the illustrations in the drawings and may be expressed differently if the orientation of the subject changes. For the same reason, some components in the attached drawings are exaggerated, omitted, or schematically depicted, and the sizes of each component do not fully reflect the actual size.

[0032] Additionally, terms that include ordinal numbers, such as "first," "second," etc., may be used to describe various components, but these components are not limited by such terms. These terms are used solely to distinguish one component from another.

[0033] The term "comprising" as used in the specification means specifying a particular characteristic, region, integer, step, operation, element and / or component, but does not exclude the presence or addition of other particular characteristics, regions, integers, steps, operations, elements, components and / or groups.

[0034] FIG. 1 is a partial side view of a tractor including a mower module for a tractor according to one embodiment of the present invention.

[0035] Referring to FIG. 1, a tractor (1, hereinafter referred to as a “tractor”) including a mower module for a tractor according to one embodiment of the present invention may include a frame (100) coupled to the lower part of a tractor body (B), a power transmission unit (200) provided in the tractor body (B) to transmit power to a mower module for a tractor (400), a front bracket (300) provided on one side of the frame (100), and a mower module (400) for a tractor that is connected to the front bracket (300) and the power transmission unit (200) when the tractor body (B) moves forward and is separated from the front bracket (300) and the power transmission unit (200) when the tractor body (B) moves backward.

[0036] The tractor body (B) may be a component that constitutes the exterior of the tractor and may vary depending on the type of tractor. Various components necessary for driving the tractor may be connected / joined to the tractor body (B).

[0037] The frame (100) may be coupled to the lower portion of the tractor body (B). The frame (100) may be provided in a form in which the rear side is open. For example, the frame (100) may be provided in a "ㄷ" shape. At least one fastening bracket may be provided on both sides of the frame (100) for fastening the frame (100) to the tractor body (B).

[0038] FIG. 2 is a schematic perspective view of a power transmission unit according to an embodiment of the present invention, FIG. 3 is a partial perspective view of a power transmission unit according to an embodiment of the present invention, FIG. 4 is a schematic partial perspective view showing a first PTO coupling and a second PTO coupling according to an embodiment of the present invention, FIG. 5 is a schematic side view showing a first PTO coupling and a second PTO coupling according to an embodiment of the present invention, and FIG. 6 is a schematic perspective view showing a first PTO coupling and a second PTO coupling connected according to an embodiment of the present invention.

[0039] Referring to FIGS. 2 to 6, a power transmission unit (200) may be provided on one side of the frame (100). For example, the power transmission unit (200) may be provided at the rear end of the frame (100). The power transmission unit (200) may be connected to a tractor mower module (400) to transmit power to the tractor mower module (400). In other words, the power transmission unit (200) may be connected to the tractor mower module (400) to drive a cutting device (not shown) provided in the tractor mower module (400).

[0040] The power transmission unit (200) may include a first PTO coupling (210) having a first jaw (211) formed therein to transmit power to a tractor mower module (400), a power transmission shaft (220) that rotates the first PTO coupling (210), a bearing housing (230) that rotatably supports the first PTO coupling (210), and a housing body (240) that supports the bearing housing (230) and is rotatably connected to one side of the frame (100).

[0041] A first member (211) may be formed at the end of the first PTO coupling (210). A plurality of first members (211) may be provided circumferentially at the end of the first PTO coupling (210). For example, four first members (211) may be provided circumferentially at the end of the first PTO coupling (210) with the same shape. At this time, the first member (211) may be provided such that the circumferential width becomes narrower as it goes from the end of the first PTO coupling (210) to the horizontal outer direction. In other words, the first member (211) may include a first horizontal protrusion part (211a) protruding horizontally from the end of the first PTO coupling (210) and a first diagonal protrusion part (211b) protruding diagonally.

[0042] The first member (211) may be provided in a shape that engages with the second member (411) of the second PTO coupling (410) of the tractor mower module (400). In other words, the first member (211) and the second member (411) may be provided in a shape that engages with each other. For example, the first PTO coupling (210) and the second PTO coupling (410) may be provided in a dog clutch shape that engages with each other.

[0043] The power transmission shaft (220) can transmit power by being connected to a first PTO coupling (210) supported by a bearing housing (230) and a universal joint (221).

[0044] The bearing housing (230) may be supported by a housing body (240). The housing body (240) may support the bearing housing (230) by surrounding at least a portion of the bearing housing (230). A slope guide plate (241) may be provided on the outer side of both sides of the housing body (240). The slope guide plate (241) may guide the movement path of the housing body (240) when the power transmission unit (200) is coupled to the tractor mower module (400). In other words, the slope guide plate (241) may guide the movement path of the housing body (240) by contacting the inner surface of the guide member (431, see FIG. 9) of the tractor mower module (400) when the tractor body (B) moves forward. To this end, the slope guide plate (241) may be provided so that its width increases from the front end to the rear end. A connecting portion (242) may be provided on one side of the housing body (240). The connecting portion (242) may be rotatably connected to a support bar (120) provided on the frame (100). The support bar (120) may be connected to a separate link structure (122) provided on the lower portion of the frame (100).

[0045] An elastic support member (243) may be connected to the other side of the housing body (240). The elastic support member (243) may be connected to a fixed panel (121) whose both ends are fixedly connected to a support bar (120) and to the rear end of the housing body (240). The elastic support member (243) may elastically support the rear end of the housing body (240) so that it can rotate within a predetermined range. Therefore, the elastic support member (243) may allow the housing body (240) to flexibly enter the rear end of the tractor mower module (400).

[0046] FIG. 8a is a side view showing a state of a tractor mower module just before being coupled to a tractor, FIG. 8b is a side view showing a state of a tractor mower module being coupled to a tractor, FIG. 9 is a schematic perspective view of a tractor mower module according to one embodiment of the present invention, and FIG. 10 is a partial perspective view showing a state of a power transmission unit according to one embodiment of the present invention being connected to a tractor mower module.

[0047] Referring to FIGS. 8 to 10, a front bracket (300) for connection with a tractor mower module (400) may be provided on one side of the frame (100). The front bracket (300) may be selectively connected to a front link portion (440) of the tractor mower module (400). The front bracket (300) may be connected to the front link (440) of the tractor mower module (400) when the tractor body (B) moves forward, and may be separated from the front link (440) when the tractor body (B) moves backward. To this end, an insertion groove (300a) into which at least a portion of the front link portion (440) is inserted may be provided at the front end of the front bracket (300).

[0048] The mower module (400) for the tractor can be detachably connected to the frame (100). For example, the mower module (400) for the tractor can be connected to the power transmission unit (200) provided in the frame (100) to receive power when the tractor body (B) moves forward, and can be separated from the power transmission unit (200) when the tractor body (B) moves backward.

[0049] A mower module (400) for a tractor may include a second PTO coupling (410) that receives power from a power transmission unit (200), a cutting device (not shown) that is connected to the second PTO coupling (410) to receive power and cut grass, etc., a mower deck (430) that forms the exterior of the mower module (400) for a tractor and to which the second PTO coupling (410) and the cutting device (not shown) are coupled, and a front link portion (440) that is provided on one side of the mower deck (430) and is inserted into and connected to a front bracket (300) when the tractor body (B) moves forward.

[0050] The second PTO coupling (410) may be provided at the rear end of the mower deck (430). A second member (411) may be provided at the rear end of the second PTO coupling (410). A plurality of second members (411) may be provided in the circumferential direction from the end of the second PTO coupling (410). For example, four second members (411) may be provided in the circumferential direction from the end of the second PTO coupling (410) with the same shape. In this case, the second members (411) may be provided such that the circumferential width becomes narrower as they go from the end of the second PTO coupling (410) to the horizontal outer direction. In other words, the second member (411) may include a second horizontal protrusion part (411a) protruding horizontally from the end of the second PTO coupling (410) and a second diagonal protrusion part (411b) protruding diagonally. At this time, a damage prevention groove (411c) may be provided between the plurality of second members (411) to prevent contact and damage to the end of the first member (211) of the first PTO coupling (210).

[0051] The second clause (411) may be provided in a shape that is interlocked with the first clause (211) of the first PTO coupling (210).

[0052] A guide member (431) may be provided on both sides in the width direction of the second PTO coupling (410). The guide member (431) may guide the insertion of the housing body (240) to assist in easy coupling of the first PTO coupling (210) and the second PTO coupling (410). To this end, an expansion portion (431a) whose widthwise gap widens as it goes rearward may be provided at the rear end of the guide member (431). In addition, a rigid reinforcing rib (431b) may be provided on the side surface of the guide member (431) to prevent damage to the guide member (431).

[0053] The widthwise inner spacing (d1) of the guide member (431) can be set so that the left-right center positions of the first PTO coupling (210) and the second PTO coupling (410) are aligned when the housing body (240) is inserted inside. In addition, the height (d2) of the guide member (431) can be set so that the top-bottom center positions of the first PTO coupling (210) and the second PTO coupling (410) are aligned when the housing body (240) is inserted inside. That is, when the housing body (240) is introduced into the guide member (431), the support bar (120) provided on the frame (100) comes into contact with the upper surface of the guide member (431), thereby determining the vertical position of the housing body (240). The height of the guide member (431) can be set so that the vertical center positions of the first PTO coupling (210) and the second PTO coupling (410) are aligned in this state in which the support bar (120) comes into contact with the upper surface of the guide member (431). As a result, the rotation centers of the first PTO coupling (210) and the second PTO coupling (410) can be easily aligned coaxially by the guide member (431).

[0054] The cutting device may receive power from the second PTO coupling (410). For example, the cutting device may include a cutting device drive unit (420) including at least one pulley, and the second PTO coupling (410) may be connected to the cutting device drive unit (420) to transmit power to the cutting device drive unit (420). The blade of the cutting device may be rotated by the cutting device drive unit (420). The blade may be exposed to the lower portion of the mower deck (430) to cut grass, etc.

[0055] The mower deck (430) can form the exterior of the mower module (400) for a tractor. After the front wheel (T) of the tractor (1) passes over the upper part of the mower deck (430), the power transmission unit (200) and the mower module (400) for a tractor can be connected. At this time, a front wheel guide (432) can be provided on the upper part of the mower deck (430) to guide the movement path of the tractor (1).

[0056] A front link portion (440) may be provided at the front end of the mower deck (430). The front link portion (440) may include, for example, a pair of front links (441) extending forward of the mower deck (430), a catch bar (442) provided at the front end of the front links (441) and selectively inserted into the front bracket (300), at least one connecting link (443) connecting the front links (441) in the width direction, a mounting bracket (444) rotatably connecting the rear end of the front links (440) to the mower deck (430), and a wheel module (445) provided between the front links (440) and in contact with the ground to support the lower portion of the front links (440).

[0057] The hook bar (442) can be fixed at both ends to the front link (441) through the hook bar fixing nut (442a), and by adjusting the position of the hook bar fixing nut (442a), the distance between the front bracket (300) and the front end of the tractor mower module (400) can be adjusted.

[0058] The wheel module (445) may include a wheel housing (445a) connected to a mounting bracket (444), a slide bar (445b) having one end fixed to a connecting link (443) and the other end slidably connected to the wheel housing (445a), an elastic member (445c) connected to the slide bar (445b) and the wheel housing to apply an elastic force in a direction that rotates the front end of the front link (441) upward, and a wheel (445d) rotatably connected to the wheel housing (445a) and in contact with the ground. A fixing nut (445b-1) may be provided at the rear end of the slide bar (445b) to prevent the slide bar (445b) from coming off.

[0059] The initial position of the catch bar (442) of the front link (441) can be set by the elastic member (445c). For example, the initial position of the catch bar (442) can be set so that the catch bar (442) is located in front of the insertion groove (300a) of the front bracket (300) when the tractor body (B) moves forward. In the process of the catch bar (442) being inserted into the insertion groove (300a), the catch bar (442) can be rotated downward by contacting the inner surface of the insertion groove (300a). Thereafter, when the tractor body (B) moves backward and the catch bar (442) moves to the outside of the insertion groove (300a), the catch bar (442) can be rotated upward by a predetermined angle by the elastic force of the elastic member (445c) and return to the initial position. By maintaining the initial position of the catch bar (442) by the elastic member (445c) in this way, the catch bar (442) can be easily inserted into the front bracket (300).

[0060] Although the embodiments of the present invention have been described as specific embodiments, these are merely examples, and the present invention is not limited thereto, but should be construed to have the broadest scope in accordance with the basic concepts disclosed in this specification. Those skilled in the art may combine / substitute the disclosed embodiments to implement patterns of shapes not specified, but this also does not depart from the scope of the present invention. In addition, those skilled in the art may easily modify or alter the disclosed embodiments based on this specification, and it is clear that such modifications or alterations also fall within the scope of the present invention.

[0061] According to the present invention, there is an effect of easy attachment and detachment to a tractor using a one-touch fastening method.

Claims

1. In a mower module for a tractor connected to and driven by the first PTO coupling of the tractor, A second PTO coupling receiving power from the above tractor; A cutting device connected to the second PTO coupling and receiving power; and A mower deck comprising the cutting device and the second PTO coupling; The end of the first PTO coupling is provided with a first member, and the end of the second PTO coupling is provided with a second member that is provided in a shape that engages with the first member. Mower module for tractor.

2. In paragraph 1, The above first clause is provided with a plurality of circumferential ends at the end of the above first PTO coupling, The above second clause is provided with a plurality of circumferentially at the end of the above second PTO coupling. Mower module for tractor.

3. In paragraph 2, Article 2 above, The second coupling is provided so that the circumferential width becomes narrower as it goes outward in the horizontal direction at the end. Module for tractor.

4. In paragraph 3, Article 2 above, Including a horizontal protrusion part protruding horizontally from the end of the second coupling and a diagonal protrusion part protruding diagonally, Module for tractor.

5. In paragraph 4, The above Article 2 is provided in multiple copies, Between the plurality of above-mentioned second articles, a break-proof groove is provided. Module for tractor.

6. In paragraph 1, The above first PTO coupling and the above second PTO coupling are provided with a dog clutch. Module for tractor.

7. In paragraph 1, A front link section provided on one side of the above mower deck and restrained to the tractor when the tractor moves forward; A guide member provided on both sides of the width direction of the PTO coupling to guide the movement of the power transmission unit; and Further comprising a guide protruding from the upper part of the above mower deck to guide the movement of the tractor; Mower module for tractor.

8. In paragraph 7, The above front link part, A pair of forward links extending forward of the above mower deck; A hitch provided at the front end of the above front link and optionally introduced into the tractor; At least one connecting link connecting the above forward link in the width direction; A mounting bracket rotatably connecting the rear end of the front link to the mower deck; and A wheel module provided between the front links and in contact with the ground to support the lower portion of the front links; Mower module for tractor.

9. In paragraph 8, The above wheel module, Wheel housing connected to the above mounting bracket; A slide bar having one end fixed to the above-described connecting link and the other end slidably connected to the wheel housing; An elastic member connected to the above slide bar and the wheel housing to apply an elastic force in a direction that rotates the front end of the front link upward; and A wheel rotatably coupled to the wheel housing and in contact with the ground; The above elastic member determines the initial position of the above-mentioned hook, Mower module for tractor.

10. A mower module for a tractor according to any one of clauses 1 to 9; and A power transmission unit for transmitting power to the above-mentioned mower module for the tractor; tractor.

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