Rollable agricultural work machine

Abstract

The present invention relates to a rollable agricultural work machine, and provides an agricultural work machine installed to a loading / unloading portion of an agricultural tractor in a manner capable of transmitting power, the agricultural work machine being provided with a mounting box in a hinged manner at a central portion thereof, and being provided with a loading / unloading portion in a fixedly combined manner on the mounting box, so that the work machine is provided to roll to left and right with reference to the hinge of the mounting box.

Description

Technical Field

[0001] The present invention relates to a rollable agricultural work machine, and more specifically, to a rollable agricultural work machine configured to roll along a field and operate by receiving power from an agricultural tractor. Background Technology

[0002] Generally speaking, a rotary tiller, a type of agricultural machinery, is an agricultural machine used for tilling land for sowing or transplanting crops.

[0003] In other words, a rotary tiller is mounted on an agricultural tractor, which is used as an agricultural work vehicle. Multiple tilling blades on the tilling shaft, which receives power from the tractor's engine, rotate to till the farmland to an appropriate depth so that crops can be sown or transplanted.

[0004] Such a rotary tiller is proposed in Korean Utility Model Registration No. 20-0492282 (hereinafter referred to as "Prior Art Document").

[0005] Conventional rotary tillers disclosed in existing technical documents include: a main body with a power transmission unit for transmitting power from a tractor located in the upper central area, with each end formed by a side plate; two support frames located between the power transmission unit and the two side plates; a gear coupling shaft connected to the power transmission unit at one end and passing through the left side plate via the support frame on one side (i.e., the left support frame) at the other end, thus being rotatable; and a gearbox consisting of a first sprocket wheel and a second sprocket wheel, the first sprocket wheel rotating in a state where it is fixed to the left end of the gear coupling shaft, and the second sprocket wheel rotating in a state where it is connected by a chain and fixed to the tillage shaft.

[0006] At this time, multiple tillage blades are fixed together on the tillage shaft, and the farmland is tilled to an appropriate depth as the tillage shaft rotates.

[0007] That is, if the tractor's power is transmitted to the power transmission unit, the power is transmitted to the gear engagement shaft connected to the power transmission unit, causing the gear engagement shaft to rotate within the support frame. As the first sprocket, which is fixed to the gear engagement shaft, rotates together with the gear engagement shaft, the second sprocket connected by the chain rotates, and the tillage shaft rotates through the rotation of the second sprocket. At the same time, multiple tillage blades till the farmland.

[0008] However, in the past, rotary tillers were fixedly installed at the rear of the tractor to till the farmland. At this time, the farmland was uneven and winding due to its muddy nature. The rotary tiller was fixed at a certain height at the rear of the tractor. Therefore, the tilling depth of the rotary tiller would vary depending on the height of the farmland, resulting in the disadvantage of not being able to till the farmland evenly.

[0009] (Patent Documents)

[0010] Korean Utility Model Registration No. 20-0492282 Summary of the Invention

[0011] The technical problem to be solved by the invention

[0012] Therefore, the present invention was conceived to solve the problems of the prior art as described above, and its object is to provide a rollable agricultural work machine that can be rolled along the farmland and till the farmland in a horizontal state relative to the farmland, so that the work machine that receives power transmission from an agricultural tractor can work.

[0013] means for solving technical problems

[0014] The present invention provides a rollable agricultural work machine for achieving the above objectives, which is mounted on the loading and unloading section of an agricultural tractor in a manner capable of transmitting power. The agricultural work machine is characterized in that a central hinge of the agricultural work machine is connected to the loading and unloading section, thereby setting the work machine to roll left and right with reference to the central hinge.

[0015] Specifically, it can be configured as follows: the working machine has a mounting box in its central part with a hinge, and a loading and unloading part is fixed on the mounting box, so that the working machine is configured to roll left and right with the hinge of the mounting box as the reference.

[0016] In addition, the following can be provided: a front hinge plate and a rear hinge plate are protruding on the mounting box; an input shaft for the work machine that supplies power to the agricultural tractor is connected through and rotatably disposed on the front hinge plate; an elongated hole is provided on the rear hinge plate; and a pin that is fixed to the hinge plate of the work machine is movably connected to the elongated hole, so that the work machine is configured to roll within the mounting box.

[0017] Furthermore, it can be configured as follows: a front hinge plate and a rear hinge plate are protruding from the mounting box; an input shaft for the work machine that supplies power to the agricultural tractor is provided through and rotatably mounted on the front hinge plate; an elongated hole is provided on the rear hinge plate; a pin fixed to the hinge plate of the work machine is movably engaged in the elongated hole, allowing the work machine to roll within the mounting box; a stop hole is also provided on the rear hinge plate; a fixing pin through the hinge plate of the work machine is engaged in the stop hole to prevent the work machine from rolling.

[0018] Furthermore, a shock absorber may be provided between the mounting box and the work machine to cushion the work machine as it rolls within the mounting box.

[0019] Invention Effects

[0020] According to the invention, the rolling agricultural work machine, which is connected to and mounted at the rear of an agricultural tractor, is configured to roll (rotate) with its center as a reference. As a result, the work machine can maintain a horizontal state relative to the farmland and cultivate the farmland in this state, thus having the effect of maintaining a constant cultivation depth in the farmland. Attached Figure Description

[0021] Figure 1 This is an exploded view of the rotary tiller and loading / unloading unit, which is an example of an agricultural work machine based on the present invention.

[0022] Figure 2 Observing from different directions Figure 1 The exploded diagram.

[0023] Figure 3 yes Figure 2 The combined diagram.

[0024] Figure 4 This is an exploded view of a rotary tiller based on the present invention.

[0025] Figure 5 This is a front structural view of the rotary tiller based on the present invention.

[0026] Figure 6 yes Figure 5 Side view of the structure.

[0027] Figure 7 This is an exploded view of the gearbox and mounting box located in the rotary tiller based on the present invention.

[0028] Figure 8 This is a diagram showing the shock absorber located between the rotary tiller and the mounting box based on the present invention. Detailed Implementation

[0029] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0030] The terminology used in this invention is defined in consideration of the functions of this invention, and may vary depending on the intentions or practices of the user, operator, and therefore, the definition of such terminology should be interpreted as conforming to the meaning and concept of the technical matters of this invention.

[0031] Furthermore, the embodiments of the present invention do not limit the scope of the invention, but are merely illustrative of the constituent elements set forth in the claims of the present invention, and are embodiments of the technical concept contained in the entire specification of the present invention and include constituent elements that can be replaced by the constituent elements in the claims as equivalents.

[0032] Furthermore, the selective terminology used in the following embodiments is for the purpose of distinguishing one constituent element from other constituent elements, and the constituent elements are not limited by the above terminology.

[0033] Therefore, in describing the present invention, detailed descriptions of relevant well-known technologies that unnecessarily obscure the essence of the invention will be omitted.

[0034] The attached diagram Figures 1 to 8 The diagram shows a centrally driven rotary tiller and loading / unloading unit as an example of an agricultural work machine based on the present invention.

[0035] As shown in the figure, the agricultural work machine based on the present invention is connected to and installed at the rear of an agricultural tractor in a manner capable of transmitting power.

[0036] Here, agricultural machinery includes harvesters, rotary tillers, plows, seeders, ridging machines, soil covering machines, trailers, balers, compost spreaders, etc., but in this embodiment, a rotary tiller (100) is illustrated as an example of an agricultural machinery.

[0037] Furthermore, regarding agricultural vehicles equipped with rotary tillers (100), an agricultural tractor will be used as an example for explanation.

[0038] On the other hand, such as Figures 1 to 3 As shown, the rotary tiller (100) described above is configured to be connected to the loading and unloading unit (200) installed at the rear of the tractor.

[0039] First, such as Figure 1 and Figure 2 As shown, the loading and unloading section (200) includes a frame (210) arranged side by side with the rotary tiller (100) and a sliding member (220) arranged in such a way that it can move in and out from both ends of the frame (210).

[0040] An upper connecting rod (10) is provided on the upper surface of the frame (210) in a hinged manner. An upper hook (211) with a hook shape and an open lower surface is rotatably connected to the front end of the upper connecting rod (10), which is connected to the upper mounting pin (133) of the mounting box (130) located in the rotary tiller (100) described later.

[0041] Furthermore, a power transmission unit (230) for transmitting the power of the tractor to the rotary tiller (100) is provided on the lower surface of the frame (210), which is combined with the power transmission unit (120) of the gearbox (110) described later.

[0042] Furthermore, the sliding member (220) has a lower connecting rod (11) at its lower end in a hinged manner. At the front end of the lower connecting rod (11), a hook-shaped lower hook (221) with an open upper surface is rotatably connected, which is connected to the lower mounting pin (134) of the mounting box (130) described later.

[0043] Thus, the upper hook (211) of the loading and unloading section (200) is engaged with the upper mounting pin (133) of the mounting box (130) located in the rotary tiller (100) in a downward direction, and the lower hook (221) of the loading and unloading section (200) is inserted into and engaged with the lower mounting pin (134) of the mounting box (130) in a downward direction. As a result, the upper hook (211) and the lower hook (221) are engaged with the upper mounting pin (133) and the lower mounting pin (134) while rotating in opposite directions. Consequently, the rotary tiller (100) is installed in the loading and unloading section (200) with a firm engagement force.

[0044] On the other hand, such as Figures 4 to 6 As shown, the rotary tiller (100), which is an example of an agricultural work machine that is loaded and unloaded onto the loading and unloading section (200) of a tractor as described above, can have a gearbox (110) provided in its central part and can maintain balance so that the left and right sides are kept horizontal with the gearbox (110) as a reference.

[0045] The gearbox (110) is configured to be installed and removed from the loading and unloading section (200) via a mounting box (130), which is configured to cover the gearbox (110) from the top of the mounting frame (113).

[0046] The mounting box (130) is hinged to the front and rear hinge parts of the gearbox (110), with the front hinge part of the gearbox (110) located at the front end of the input shaft (121) and the rear hinge part of the gearbox (110) located at the rear end of the mounting frame (113).

[0047] In particular, the front hinge portion of the gearbox (110) includes a hinge bushing (123) that is rotatably coupled to the front end of the input shaft (121) via a bearing (122), and a front hinge plate (131) of the mounting box (130) described later is inserted into and hinged to the outer side of the hinge bushing (123).

[0048] Furthermore, the rear hinge portion of the gearbox (110) includes a plurality of hinge plates (114) formed on the upper surface of the rear end portion of the mounting frame (113), and conventional holes (114a) are provided on the hinge plates (114) at intervals in a triangular arrangement. The rear hinge plate (132) of the mounting box (130), described later, is inserted and hinged between these plurality of hinge plates (114).

[0049] Therefore, the rotary tiller (100) is connected to the loading and unloading unit (200) and rolls up and down on the left and right sides with reference to the front and rear hinges of the traction mounting box (130). By rolling, the rotary tiller (100) is always set to be horizontal relative to the farmland, regardless of the flatness of the farmland. Since the farmland is tilled in this state, the tillage depth can be kept constant.

[0050] Furthermore, since a gearbox (110) is located in the center of the rotary tiller (100), such as Figure 5 As shown, there is a amount of uncultivated land (W) in the farmland below the gearbox (110) that is equivalent to the width of the gearbox (110).

[0051] Therefore, as Figure 6 and Figure 7 A plowshare (115) protruding downwards is provided on the lower surface of the gearbox (110), and the plowshare (115) digs an amount of uncultivated land (W) equivalent to the width of the gearbox (110).

[0052] In particular, when the rotary tiller (100) is tilling, the soil of the farmland will accumulate in the lower center of the rotary tiller (100), i.e. the lower part of the gearbox (110), through the tilling operation of the tilling blades rotating on both sides of the gearbox (110), and the plowshare (115) will disperse the accumulated soil, while removing weeds from the untilled land (W).

[0053] On the other hand, such as Figures 1 to 6 As shown, a mounting box (130) is hinged to the upper part of the gearbox (110) as described above.

[0054] like Figure 6 and Figure 7As shown, this mounting box (130) has a box-shaped cross-sectional structure with an open lower surface, including a cover (130a) covering the upper surface of the gearbox (110), i.e., the power transmission part (120), and a "∧"-shaped extension (130b) extending downward from one end of the cover (130a) which is close to the loading and unloading part (200) of the tractor.

[0055] like Figure 2 and Figure 3 As shown, mounting pins (133) and (134) are provided on the cover (130a) and extension (130b) for engaging with the upper hook (211) and lower hook (221) of the loading and unloading part (200), respectively.

[0056] The upper mounting pin (133) of this mounting pin is fixedly formed on the upper surface of the cover (130a) and is engaged with the upper hook (211) of the loading and unloading part (200), while the lower mounting pin (134) is fixedly formed at the lower ends of the two extensions (130b) and is engaged with the lower hook (221) of the loading and unloading part (200).

[0057] At this time, the upper hook (211) and lower hook (221) which are combined with the upper mounting pin (133) and the lower mounting pin (134) are formed into hook shapes and are set in the direction where the openings of the upper hook (211) and the lower hook (221) are opposite to each other. By combining with the upper mounting pin (133) and the lower mounting pin (134), the rotary tiller (100) can be firmly installed on the loading and unloading part (200).

[0058] Furthermore, the front and rear hinges that are hinged to the front and rear hinges of the gearbox (110) are located in the cover (130a) of the mounting box (130).

[0059] In particular, the front hinge portion of the mounting box (130) includes a downwardly protruding front hinge plate (131) at the front end of the lower surface of the cover portion (130a), and a through opening (131a) is formed on the front hinge plate (131) for the hinge bushing (123) of the input shaft (121) to pass through and engage.

[0060] Therefore, the hinge bushing (123) that passes through the through-hole (131a) of the front hinge plate (131) will rotate in place (rotate) on the front hinge plate (131). At this time, the front hinge plate (131) can be composed of a front connecting plate and a rear tube. In this case, the front connecting plate can be fixed to the outside of the foremost bearing between the input shaft (121) and the hinge bushing (123), and the rear tube can be inserted into the outer side of the hinge bushing (123).

[0061] Furthermore, the rear hinge portion of the mounting box (130) includes a rear hinge plate (132) that protrudes downward at the rear end of the lower surface of the cover portion (130a). A stop hole (132a) and a plurality of elongated holes (132b) are formed on the rear hinge plate (132) in a triangular configuration.

[0062] In particular, a stop hole (132a) is formed on the upper part of the rear hinge plate (132), and a plurality of elongated holes (132b) are formed on the lower part of the rear hinge plate (132) in a spaced-apart manner on the same line and in a vertically elongated manner.

[0063] The connecting pins are respectively engaged with two elongated holes (132b) in the rear hinge plate (132). The connecting pins are configured to pass through the elongated holes (132b) and also pass through the lower connecting hole (114a) formed as a conventional hole in the hinge plate (114) of the gearbox (110). Thus, the gearbox (110), i.e., the rotary tiller (100), is configured to roll up and down in the mounting box (130) by an amount equivalent to the vertical length of the elongated holes (132b), and the rolling rotary tiller (100) can always remain horizontal relative to the farmland.

[0064] Furthermore, a retaining pin selectively engages with and is positioned in the stop hole (132a) of the rear hinge plate (132). This retaining pin also passes through the stop hole (132a) and engages with the upper engagement hole (114a) formed as a conventional hole on the hinge plate (114) of the gearbox (110), thereby securing the rotary tiller (100) to the mounting box (130) and preventing rolling. Thus, with the rolling of the rotary tiller (100) blocked, the tractor can move safely.

[0065] On the other hand, between the mounting box (130) and the rotary tiller (100) as described above, a plurality of shock absorbers (140) are provided on both sides to cushion the rolling of the rotary tiller (100).

[0066] like Figure 8 As shown, the shock absorber (140) includes a cylinder body (140a) that is hydraulically actuated internally and a rod (140b) that is positioned to move in and out from one end of the cylinder body (140a).

[0067] The lower end of the cylinder body (140a) is hinged to the lower end of the extension (130b) of the mounting box (130), and the front end (upper end) of the rod (140b) that enters and exits from the upper end of the cylinder body (140a) is hinged to the mounting frame (113) of the gearbox (110).

[0068] Therefore, when the two ends of the rotary tiller (100) roll up and down in the mounting box (130), the rods (140b) on both sides that roll up and down together with the rotary tiller (100) play a buffering role as they move in and out of each cylinder body (140a).

[0069] On the other hand, in this embodiment, a structure is shown in which, when the shock absorber (140) is constructed, the cylinder body (140a) is located at the lower part and is attached to the lower end of the extension (130b) of the mounting box (130), and the rod (140b) is located at the upper part and is attached to the mounting frame (113) of the gearbox (110). This is to prevent foreign objects splashed upwards during farmland cultivation from damaging the rod (140b) by placing the rod (140b) at the upper part of the cylinder body (140a), thus preventing the shock absorber (140) from malfunctioning due to damage to the rod (140b).

[0070] In addition, a protective element (141) is provided on the rear surface (facing the rotary tiller (100)) of the extension (130b) of the mounting box (130), which protects the shock absorber (140) from the impact of foreign objects that splash towards the shock absorber (140) side when tilling is carried out by the rotary tiller (100).

[0071] At this time, the protective member (141) can be formed of a plate having an area sufficient to cover the rear surface of the shock absorber (140), and can be inclined to correspond to the slope of the shock absorber (140). In this way, if the protective member (141) is inclined to correspond to the shock absorber (140), the area that can cover the shock absorber (140) is maximized compared to the same area, and thus the shock absorber (140) can be protected more safely.

[0072] Furthermore, on the upper side of the gearbox (110) as described above, a square-shaped mounting frame (113) is provided, protruding to both sides. The central back plate (150) covering the gearbox (110) is attached to the mounting frame (113), and side back plates (160) are attached to both sides of the central back plate (150). At this time, the side back plates (160) can be arranged in a way that allows them to enter and exit from the central back plate (150), thereby enabling the rotary tiller (100) to expand.

[0073] Furthermore, a central door leaf (170) extending toward the ground is rotatably provided at the rear end of the central back panel (150) to cover the gearbox (110), and a side door leaf (180) extending toward the ground is also rotatably provided at the rear end of the side back panel (160).

[0074] In particular, the side door (180) can be configured to allow entry and exit from both sides of the central door (170), thus allowing the overall length of the door to be extended like the upper side back panel (160).

[0075] Furthermore, a power transmission unit (120) is provided on the gearbox (110) on the upper part of the mounting frame (113) to connect with the power transmission unit (230) of the loading and unloading unit (200) and input power to the tractor, such as Figure 6 As shown, the two power transmission units (120) and (230) can be configured to transmit power through the engagement of corresponding dog clutches.

[0076] And, as Figure 6 As shown, an input shaft (121) is provided in the power transmission section (120) in such a way that it protrudes toward the loading and unloading section (200) of the tractor. A claw clutch is fixedly provided at the front end of the protruding input shaft (121), and a first sprocket (124) is connected to the rear end of the input shaft (121) in such a way that it can transmit power.

[0077] This first sprocket (124) is configured to connect with the second sprocket (112) of the main shaft (111) described later via a chain (125), thereby enabling power transmission.

[0078] Furthermore, a main shaft (111) is provided at the lower part of the gearbox (110) in such a way that it protrudes to both sides of the gearbox (110), and a second sprocket (112) is fixedly provided on the main shaft (111), so that the second sprocket (112) and the main shaft (111) rotate simultaneously.

[0079] Thus, the tractor's power is input to the input shaft (121) through the power transmission units (120) and (230), and the input power is transmitted to the main shaft (111) and output through the first sprocket (124), the chain (125), and the second sprocket (112).

[0080] Each tillage shaft with tillage blades is arranged on the main shaft (111) in a state where it cannot rotate relative to the main shaft (111), and the tillage shafts till the farmland while rotating together with the main shaft (111).

[0081] The rotary tiller (100) based on the central drive method of the present invention, as described above, receives power from the tractor through a power transmission unit (120) that is combined with the power transmission unit (230) of the tractor.

[0082] like Figure 6As shown, the power is input to the input shaft (121) of the power transmission unit (120) located on the upper part of the gearbox (110). The input power is transmitted to the second sprocket (112) through the first sprocket (124) connected to the input shaft (121). The power transmitted to the second sprocket (112) is output through the main shafts (111) respectively provided on both sides of the second sprocket (112).

[0083] The power output to the main shaft (111) will cause the main shaft (111) to rotate. Through the rotation of the main shaft (111), the tillage shaft connected to it will rotate at the same time, thus tilling the farmland.

[0084] On the other hand, since the rotary tiller (100) described above has a gearbox (110) in its center, it is able to till the farmland while maintaining a horizontal state with the gearbox (110) as the center on both sides.

[0085] Furthermore, the rotary tiller (100) is configured such that the gearbox (110) located in the rotary tiller (100) rolls up and down on both sides in the mounting box (130) of the loading and unloading part (200) of the tractor by an amount equivalent to the length of the elongated hole (132b). Thus, regardless of the flatness of the farmland, the rotary tiller (100) remains horizontal relative to the farmland, thereby enabling the farmland to be cultivated evenly to a constant depth.

[0086] The present invention has been described in detail above through specific embodiments. However, this is only for the purpose of illustrating the present invention in detail. The present invention is not limited thereto. It is clear that within the scope of the technical concept of the present invention, modifications or improvements can be made by those skilled in the art.

[0087] Simple variations or modifications of this invention are all within the scope of this invention, and the specific scope of protection of this invention can be clearly defined by the appended claims.

[0088] (Symbol Explanation)

[0089] 100: Rotary tiller; 110: Gearbox

[0090] 111: Mainshaft 112: Second sprocket

[0091] 113: Mounting frame 114: Hinge plate

[0092] 114a: Connecting hole; 115: Plowshare

[0093] 120: Power transmission unit; 121: Input shaft

[0094] 122: Bearing; 123: Hinge bushing

[0095] 124: First sprocket 125: Chain

[0096] 130: Mounting box; 130a: Cover.

[0097] 130b: Extension; 131: Front hinge plate

[0098] 131a: Through-hole; 132: Rear hinge plate

[0099] 132a: Stop hole; 132b: Elongated hole

[0100] 133, 134: Mounting pins; 140: Shock absorber

[0101] 140a: Cylinder body; 140b: Rod

[0102] 141: Protective component; 150: Central backplate

[0103] 160: Side back panel; 170: Central door panel

[0104] 180: Side door 200: Loading / unloading section

[0105] 210: Frame 211: Upper Hook

[0106] 220: Sliding component; 221: Lower hook

[0107] 230: Power Transmission Section

Claims

1. An agricultural work machine, which is mounted on an agricultural tractor in a manner capable of transmitting power, wherein, The agricultural work machine includes: Gearbox, which transmits power from the tractor for drive; The main shaft and the tiller shaft are connected to the main shaft and have tiller blades attached thereon. The main shaft rotates on both sides of the lower part of the gearbox. The mounting box includes a cover and an extension extending downward from one end of the cover, such that an upper hook of an agricultural tractor is attached to the cover and a lower hook of the agricultural tractor is attached to the extension, thereby mounting the agricultural work machine to the agricultural tractor. The cover of the mounting box covers the power transmission part of the gearbox on the upper part of the gearbox, and includes a front hinge and a rear hinge of the agricultural work machine, so that the agricultural work machine can roll when mounted on an agricultural tractor.

2. The agricultural work machine according to claim 1, wherein, The front hinge portion is formed as a front hinge plate, and a through-hole is formed on the front hinge plate for the hinge bushing of the input shaft to pass through and engage.

3. The agricultural work machine according to claim 2, wherein, The rear hinge portion is formed as a rear hinge plate, which is formed by a stop hole and multiple elongated holes forming a triangle.

4. The agricultural work machine according to any one of claims 1 to 3, wherein, A shock absorber is installed between the mounting box and the agricultural machine to cushion the rolling motion of the agricultural machine.

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