JP2010207144A - Agricultural machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable both of an agricultural working part and a leveling rotor as capable of right and left-rolling by a rolling shaft and also realize the supporting structure and arranging constitution of a leveling device as strong and compact. <P>SOLUTION: The agricultural machine is provided by equipping a vertical link 51 lifting up and down at the rear end part of a lifting up and down link device, installing a mounting frame 52 rolling in right and left through a front and rear directional rolling shaft 24 installed at the vertical link 51, at the rear side of the vertical link 51, installing the agricultural working part through an attaching and detaching hitch attached and detached to the mounting frame 52, at the rear side of the mounting frame 52, installing a leveling device-supporting frame 54 supported by the mounting frame 52 and extending in rear side from the mounting frame, joining a vertically rotating arm extending in front side from the leveling device-supporting frame with the leveling device-supporting frame 54, joining the leveling frame 56 with the vertically rotating arm to support the leveling device 8 as capable of vertically rotating, and constituting so that the leveling device-supporting frame 54 overlaps and crosses with the leveling frame 56 by a machine body side surface view. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to agricultural machines such as tractors and rice transplanters.

  As shown in Patent Document 1, a seedling transplanter configured to support a seedling planting unit for planting seedlings in a farm scene and a leveling rotor for leveling the farm scene by a lifting link device provided at the rear of the traveling vehicle body. Are known.

JP 2007-228807 A

  In the above conventional configuration, since the leveling rotor is mounted and supported by the support frame on the back side of the seedling tank of the seedling planting part, when replacing the seedling planting part with another working machine having a different function, etc. The leveling rotor must be removed one by one, and there is a problem that the leveling rotor cannot be replaced with the leveling rotor left on the vehicle body side.

  It is an object of the present invention to easily replace only a farm work part such as a seedling planting part with another work part of a different type while leaving the ground leveling rotor on the vehicle body side. The purpose of the present invention is to improve the leveling performance and farming performance by enabling both the rotor and the left and right rolling, and to realize the support structure and arrangement configuration of the leveling device in a strong and compact manner.

In order to solve the above problems, the present invention has taken the following technical means.
That is, the present invention according to claim 1 is provided with a vertical link device (3) provided on the rear side of the traveling vehicle body (1), and provided with a vertical link (51) that moves up and down at a rear end portion of the vertical link device. A mounting frame (52) that rolls left and right via a rolling shaft (24) in the front-rear direction provided in (51) is provided on the rear side of the vertical link (51), and a detachable hitch (53) that is attached to and detached from the mounting frame (52) ) Is provided on the rear side of the mounting frame (52), and a leveling device support frame (54) supported by the mounting frame (52) and extending rearward from the mounting frame is provided. A vertical rotation arm (55) extending forward from the leveling support frame is connected to the support frame (54), and a leveling frame (56) is connected to the vertical rotation arm (55) to rotate the leveling device (8) up and down. Movably supported The leveling device support frame (54) and leveling frame (56), characterized in that you have configured to intersect duplicated in body side view.

  The farm work part (4) is attached to the attachment frame (52) provided at the rear part of the vertical link (51) of the lift link device (3) via the detachable hitch (53). The leveling device (8) includes a leveling device support frame (54) extending from the mounting frame (52) to the rear side of the mounting frame (52), and a vertical turning arm (55) extending from the leveling device support frame to the front side. ) And a leveling frame (56) connected to the vertical rotation arm. Since the farm work unit and the leveling device are separate support structures for the mounting frame, when removing the farm work unit, it is possible to easily remove only the farm work unit while leaving the leveling device on the vehicle body side without removing it.

The farm working unit and the leveling device roll together to the left and right with a common rolling shaft (24) as a rotation center. Agricultural work performance and leveling performance are improved by rolling both.
Since the leveling device support frame (54) and the leveling frame (56) for supporting the leveling device intersect with each other in a side view, the leveling device can be arranged closer to the front side, and thus the farm work section. Can be arranged on the vehicle body side, and the front-rear balance of the airframe is well maintained.

According to a second aspect of the present invention, in the first aspect, a leveling device support frame (54) is disposed on the left and right sides of the leveling frame (56).
The vertical movement of the leveling frame is regulated and guided by the left and right leveling apparatus support frames, so that the leveling apparatus can smoothly move up and down.

  In short, according to the present invention of claim 1, the farm working unit and the leveling device can be replaced by the rolling shaft while only the farm working unit can be replaced with a different type while leaving the leveling device on the traveling vehicle body side by the detachable hitch. Both can be rolled left and right, improving farming performance and leveling performance.

  The support structure that supports the leveling device so that it can move up and down can be made strong while obtaining a sufficient vertical stroke, and this leveling device can be placed forward, and the agricultural work section can also be placed on the traveling vehicle body side. Therefore, the front / rear balance of the aircraft is improved.

  According to the second aspect of the present invention, in addition to the effect of the first aspect, the leveling device support frame can prevent the leveling frame from falling over or guide the vertical movement, and the leveling device can smoothly move up and down. As a result, a support structure can be made into a compact structure, and weight reduction and cost reduction can be achieved.

Side view of pot type seedling transplanter Top view of the main part Enlarged side view of the main part at the rear of the aircraft Side view of essential parts showing support structure of leveling device Enlarged side view of the main part of the detachable hitch mechanism Plan view of main part of support structure of leveling device Side view of the main part of the seedling planting work department Side view of seedling box supply section and seedling box transport section Control block diagram of seedling box supply Cross-sectional view of the drive case S1-S1 sectional view of FIG. Control block diagram flowchart Side view of the soft / soft sensor Same as above Rear view of rolling control mechanism Side view Side view of essential parts of fertilizer application equipment Top view of the main part Rear view of the main part Side view of the main part of the turbine marker support structure Side view of the main part Expanded side view of the main part

An embodiment of the present invention will be described with reference to the drawings.
As an example of a farming machine, the seedling transplanting machine shown in the side view of FIG. 1 is an eight-plant pot-type seedling transplanting machine, and a pair of left and right front wheels 6, 6 that can be steered and a pair of left and right driven The pot-type seedling planting work unit 4 can be moved up and down via a lifting link device 3 which is composed of upper and lower links and includes a rolling adjustment unit at the rear end thereof on the rear side of the traveling vehicle body 1 including the wheels 7 and 7. The leveling device 8 is provided in front of the float 5 which is mounted and provided below the pot-type seedling planting work unit 4.

  The leveling device 8 is attached to the rear end of the lift link device 3 and is pot-type via an extension frame 9 formed by upper and lower frames extending from the lift link device 3 on the extension line of the upper and lower links at a position away from the rear end thereof. The seedling planting work unit 4 is supported. In addition, a steering handle 12 for steering the front wheels 6, 6, a steering seat 13, a spare seedling table 15, a drawing marker 16, and the like are provided on the front side of the fuselage, and a fertilizer 17 is provided behind the steering seat 13. Near the steering handle 12, there is provided a shift lever 14 for performing shift control of the traveling speed via an HST (hydraulic continuously variable transmission).

(Seedling planting department)
Explaining in detail about each device of the seedling planting work section, the pot type seedling planting work section 4 according to the configuration example of the eight-row planting has flexibility as shown in FIG. In order to handle many seedling pots in a grid-like arrangement on the seedling tray and store each seedling one by one and hold it in the seedling box, the top and bottom sloped downwards in common in two adjacent strips. Four sets of two-stage pot seedling box introduction sections 30, 30... Are provided in parallel on the left and right, and the seedling box main transport paths 31, 31. Are connected to form a transfer unit for transferring the seedling box.

  Each seedling box main transport path 31 transports seedling boxes supplied one by one in order from the upper and lower two-stage pot seedling box introduction sections 30 and 30 downward in the first half, and gradually moves the transport direction along the arc from the middle. In the second half, it is formed in a substantially U shape in a side view to convey upward, and is connected to the terminal portion of the seedling box main conveyance path 31 to provide a plurality of empty seedling boxes after the seedlings are taken out at the seedling removal position. There is provided an empty box accommodating portion 38 that can be accommodated in a state of being stacked one above the other. The seedling box main transport path 31 is provided with a seedling box supply device by a supply roller that feeds the seedling box in the pot seedling box introduction section 30, and the placed seedling box is the bottom surface of the pot seedling box introduction sections 30, 30. It slips backward by its own weight along the slope by the idle roller.

In addition, a seedling box feeding mechanism that transports the seedling box along the seedling box transporting path corresponding to each seedling box main transporting path 31, and a seedling box that is being transported at the seedling extraction position located at the lower end of the transporting path 31 A seedling extraction mechanism 33 for extracting seedlings from the pot side by row, a seedling transport mechanism 34 for transporting the extracted seedlings with a trajectory that draws an arc on the lower front side, a seedling removal mechanism 35 for extracting seedlings from the seedling transport mechanism , A seedling lateral feed mechanism 36 that laterally feeds to the left and right sides of each half of the horizontal row extracted by the seedling removal mechanism 35, and a seedling planting mechanism that takes the seedling supplied by the seedling lateral feed mechanism 36 and plantes it in the field 37, etc., and a planting case 32 is integrally formed with a drive case and a planting transmission frame, and a pot seedling box introduction section having two upper and lower stages via a seedling support frame. 30 is supported.
(Leveling equipment)
In the embodiment shown in FIG. 3, the leveling device 8 includes two leveling rotors 41, 41 arranged front and rear for crushing the soil mass and leveling the field, and a suspension wire 42 a and a suspension link for supporting the front and rear thereof from above. 42b is comprised, and this is arrange | positioned in the downward position of the pot type seedling planting part 4 so that height adjustment is possible.

  The suspension link 42b is provided with a vertical frame 43 at the rear end portion of the lifting / lowering link device 3, and is connected to the vertical frame 43 through two upper and lower links 45 and 46 so as to be movable up and down, and is adjustable to be swingable. The lever 44 is configured to be height adjustable. The adjusting lever 44 is disposed at a position between the two empty box accommodating portions 38 while avoiding interference with the swing range.

  In this case, the leveling device 8 is configured to be bent at a position below the empty box housing portion 38 and the suspension link 42b is bent so as to be parallel to the bent shape of the pot-type seedling planting portion 4. The space A on the front side of the seedling planting part 4 can be used effectively, and the link can be configured without extending more than necessary. Further, when the adjustment lever 44 is disposed under the empty box housing portion 38, it can be opened and closed without obstructing the hopper.

  In the above configuration, the leveling device 8 is supported at the rear end position of the lifting link device 3, and the pot-type seedling planting work unit 4 is supported at a position via the extension frame 9 extending rearward of the lifting link device 3. Thus, both are supported by the lifting link device 3 at the rear of the machine body so as to be able to move up and down integrally, and pot seedlings are planted on the leveling field, and the front side of the pot type seedling planting work unit 4 is between the leveling device 8 and Thus, a maintenance space A is secured. Accordingly, the application range can be expanded by the leveling device 8 for various field conditions, and the planting unit 32 is provided by the maintenance space A on the front side of the planting device 32 of the pot type seedling planting work unit 4. It is possible to immediately respond to abnormal situations and to ensure the work efficiency of pot seedling planting.

  Next, the leveling device support structure, which is a feature of the present invention, will be described. As shown in FIG. 4, a vertical link 51 that moves up and down at the rear end portion of the lifting link device 3 provided on the rear side of the traveling vehicle body 1 is provided. A mounting frame 52 that rolls left and right via a rolling shaft 24 in the front-rear direction provided on the vertical link 51 is provided on the rear side of the vertical link 51. Agricultural work part (seed planting work part) 4 is disposed on the rear side of the attachment frame 52 through a detachable hitch 53 and an extension frame 9 that are attached to and detached from the attachment frame 52. Further, the mounting frame 52 is provided with ground leveling device support frames 54, 54 extending rearward from the mounting frame through a leveling support member 57, and the leveling device support frames 54, 54 support the leveling device ground support. The vertical swing arms 55u and 55d extending forward from the frame are connected, and the leveling frame 56 is connected to the vertical rotary arms 55u and 55d to support the leveling device 8 so as to be able to rotate up and down, and the leveling device support frame 54, 54 and the leveling frame 56 are arranged so as to overlap each other when viewed from the side of the machine body. Therefore, according to such a configuration, only the seedling planting work part can be replaced with a different type of farm work part while leaving the leveling device on the traveling vehicle body side by the detachable hitch, and the seedling planting work part by the rolling shaft. Both the leveling device can be rolled left and right. In addition, the support structure that supports the leveling device so that it can be moved up and down can be made strong while obtaining a sufficient vertical stroke, and this leveling device can be placed forward, and the farming section is also moved to the traveling vehicle side. It can be arranged, and the front and rear balance of the aircraft can be performed well.

  The leveling device support frames 54 and 54 are disposed at the left and right positions of the leveling frame 56 so that the vertical movement of the leveling frame 56 is guided by the left and right leveling device support frames. It is configured so that it can move up and down smoothly.

  The overall configuration of the pot-type seedling planting operation unit will be described in more detail. The raising / lowering operation of the seedling planting operation unit 4 can be manually operated based on the operation of the planting / elevating switch 10 provided in the grip portion of the transmission lever 14. The seedling planting work unit 4 is moved up and down by an elevating hydraulic cylinder 26 that extends and contracts via an elevating electromagnetic hydraulic valve 27. In addition, the ground height control of the seedling planting work part is performed by the float sensor 11 detecting irregularities on the surface of the field, and the control part 19 raises and lowers the ground height of the seedling planting work part according to the height of the topsoil surface. It is configured to control and maintain a constant seedling planting depth.

  Four sets of upper and lower two-stage seedling box supply units 30 are provided in parallel on the left and right sides, and a seedling box main transport unit 31 is connected to the end of each group of seedling box supply units. An empty box storage unit 38 that can be connected to the terminal end of the seedling box main transport unit 31 and can store a plurality of empty seedling boxes after the seedlings are taken out at the seedling extraction position P, which will be described later. Is provided. A guide body 40 for guiding the empty box from the upper side is provided at a portion corresponding to the joint between the empty box guide rails 39a and 39b, and the seedling box is smoothly moved around.

  An idling roller 20 is provided on the bottom surface of the seedling box introducing section 30 so that the seedling box placed on the seedling box slides backward due to its own weight. At the rear end of each seedling box introduction section 30, as a supply device 29 for supplying the seedling box to the transport path of the seedling box seed transport section 31, the right and left edges of the seedling box are gripped and the seedling box is moved to the main transport section side. A pair of left and right supply rollers 21 and 22 that are fed out, and a wide feed roller that is positioned in front of the supply roller and that has a protrusion formed on the outer peripheral portion engaged with the gap between the pot from below to feed the seedling box 23. The lower supply roller 22 and the feed roller 23 of the upper and lower seedling box supply unit are driven to rotate by motors M1 and M2, respectively.

  A planting transmission frame 47c extends rearward from the lower side of the frame 47b integrated with the drive case 47a, and a seedling support frame 47d is fixed to the upper surface of the drive case 47a to support the seedling box introducing portion 30. Yes. The rolling shaft 24 is rotatably supported by a bearing case 50 attached to the planting part support bracket 48, and the leveling device and the entire planting part are supported so as to be able to roll freely. The entire planting part is based on the detection value of the rolling sensor (left / right tilt angle sensor) 28, and the rolling motor 25 is driven forward / reversely by a signal from the control device (controller) so that the detection value is maintained at the set value. Thus, left and right rolling control is performed around the rolling shaft 24.

  The seedling box feeding mechanism is composed of a pair of left and right feeding claws 60, 60 and locking claws 61, 61. By these operations, the seedling box is moved along the seedling box transport path 31 by one pitch of the pot arrangement. It is designed to be sent intermittently. On the upper side of the feeding claws 60, 60 and the locking claws 61, 61, blocking claws 63, 63 for temporarily receiving the succeeding seedling box sliding down the seedling box transport path 31 are provided.

  By rotation of the seedling box feeding cam 65, the seedling box feeding operating arm 66 swings and is transmitted to the seedling box feeding driving arms 70, 70 via the seedling box feeding driving shaft 69, and reciprocates the feeding claws 60, 60 up and down. Move. When the cam 65 pushes the roller 67, the feed claws 60, 60 move downward to feed the seedling box. The transmission shaft 64 that transmits and rotates the cam 65 is provided with a fixed position stop clutch 64b that enters and exits transmission by an external operation on a cylindrical body 64a that rotates integrally therewith.

  As shown in FIG. 7, the seedling transport device 34 includes a seedling holder 83 that holds a bed soil portion of the seedling pushed out from the seedling box by the seedling pushing pin. The seedling holder 83 is fixed to a support member 86 connected to the upper and lower swing links 84 and 85, and reciprocates along an arc locus by swinging the swing links 84 and 85. Yes. Further, when the seedling holder 83 is planted, the seedling holder stop position when the planting clutch or the heel clutch 64b is disengaged is stopped at a phase near the bottom dead center, and the seedling holder 83 is washed in a direction to take the seedling. It stops in the fountain zone (A) fountained from the nozzle 89.

  Further, in FIG. 7, the seedling planting device 37 has a pair of seedling planting tools 102, 102 attached to a rotating case 101 that rotates integrally with the planting drive shaft 100, and the seedling planting tool draws a closed loop locus. The seedlings are alternately taken and planted in the field.

  In the configuration example shown in FIG. 8, the seedling box detection sensors SW1 to SW7 are connected to a controller as shown in FIG. 9, and based on information from each sensor, the controller 72 performs motors M1 and M2, seedling reduction lamps and Output to the seedling reduction buzzer. By the operation of the motor M1 or M2, the seedling box in the seedling box supply unit is fed out to a predetermined position of the main transport unit. At this time, even if the motor M1 or M2 is operated for a predetermined time or more, If the seedling box detection sensor W3 is not sent to the predetermined position, the seedling box detection sensor W3 is turned off, and is output to the seedling box feed failure alarm device BZ to notify the operator.

  In the seedling box automatic supply device, when the motors MI and M2 that feed the upper and lower conveyance paths are operated, the controller 72 outputs to the transmission motor 74 (HST operation) so that the vehicle speed is slightly slower than a predetermined speed. It is configured to control. If the vehicle speed is high when the seedling box is supplied, there is a problem that the seedling box supply becomes unstable due to shaking of the vehicle body. However, by slowing down the vehicle speed, the seedling box automatic supply is stabilized and the accuracy is improved.

The speed change motor 74 is driven based on the detection result of the speed change lever sensor 73 by the operation of the speed change lever 14 so that the vehicle speed is arbitrarily controlled.
A saddle clutch lever 75 is provided on the left and right sides of the control seat 13. When the 畦 clutch lever 75 is operated, the heel clutch is turned “off”, then the planting clutch is turned “off”, and the planting clutch is turned “on” again. The aircraft is configured to start running after one turn. That is, as shown in FIGS. 12 and 13, the hook clutch lever sensor 76 detects the hook clutch “off” by the hook clutch “off”, and the planting clutch motor 77 is operated to turn the planting clutch “off”. Then, when the planting clutch motor 77 is turned on again to turn the planting clutch “ON”, a travel stop output is output to the travel clutch motor 78, and the planting transmission shaft rotation sensor 79 starts planting transmission shaft rotation counting. When the planting transmission shaft rotation count reaches a predetermined value, the traveling clutch motor 78 is output to travel, and the vehicle body is started by the "on" operation of the traveling clutch, so that the planting operation while traveling is performed. It can be done without stock loss.

  A planting mode switch 80 is provided in the operation box portion of the steering handle 12, and a hard / soft sensor 81 for detecting the topsoil surface having a planting mode is provided below the seedling planting operation unit 4. As shown in FIGS. 14 and 15, the hardness / softness detection sensor 80 includes large and small detection rollers 80A and 80B, roller arms 80A1 and 80B1 that can be rotated up and down around the axis Q, and both arms 80A1 and 80B1. It is composed of an arm angle difference detection potentiometer 80C for detecting the angle difference, and the small-diameter detection roller 80B side detects the topsoil surface while rolling in contact with the topsoil surface. Based on this, the planting part is controlled to move up and down.

  Next, a configuration example of the rolling control mechanism will be described. As shown in FIGS. 16 and 17, the rolling motor 25 is mounted and supported on a support plate 90 a above the support frame 90, and a small-diameter drive gear 91 a can be driven to rotate forward and backward at the tip of the drive shaft 91 of the rolling motor 25. It is installed. On the other hand, on the support plate 90a side, a large-diameter driven gear 91b that meshes with the drive gear 91a is pivotally supported by a shaft 91c. The base end portion of the rolling drive pin 91d is fixed to the driven gear 91b, and the distal end portion of the rotating arm 92 that can swing and displace around the pivot shaft 91c supported on the support plate 90a side. The long hole 92a is fitted. Then, one end of the left and right tension springs 93 and 93 is locked to the swinging tip of the rotating arm 92, and the other end of the left and right tension springs 93 and 93 is fixed to the seedling planting work unit 4 side frame 4a. ing. Thus, by the forward / reverse drive of the rolling motor 25, the rotating arm 92 swings in the yellow direction, and the seedling planting work unit 4 is moved around the rolling shaft 24 with respect to the traveling vehicle body via the springs 93, 93. The rolling operation is enabled.

  In the left and right rolling control of the seedling planting work section, a control means for changing the rolling reference value so that the float 5 located on the side opposite to the working side (non-planting side) of the marker 16 (the existing planting side) is slightly raised. By taking it, mud pushing to the adjacent strip on the existing planting side can be prevented.

  The left and right markers 16, 16 are operated to “turn on” the automatic marker on / off switch 94, and when the sensor turning angle sensor 95 exceeds a predetermined turning angle during turning, the left marker motor 96L (or right) on the steering direction side The marker 16 (left or right) on the non-planting side automatically falls from the standing state to the drawing action state position by the operation of the marker motor 96R). By interlocking with such standing / falling switching of the left and right markers, it is possible to perform the rolling control in which the float on the already planted side is slightly higher than that on the unplanted side, which can be accurately performed.

  In the case of a soft field where there is no marker mark, seedlings are planted one by one for each plant width in the east-west or north-south headland of the field, i.e. Or, it can be a mark in the planting process in the east-west direction. The means is performed by the “on” operation of the mark planting switch 82 shown in FIG. 12, and the rear wheel transmission shaft rotational speed sensor 97 counts the travel distance. For example, in the case of 8 rows planting, 8 rows × 30 cm between stocks The controller 19 may be configured to control the planting clutch (single-rotation clutch) to be turned on and off at intervals of = 240 cm (or 480 cm, which is twice the reciprocating distance) and plant one by one.

  The fertilizer application unit 17 feeds the granular fertilizer stored in the fertilizer hopper 105 by the feeding unit 106, guides the fertilizer to the fertilization guides provided on the left and right sides of the float with the fertilizer hose 107, and the side portion of the seedling planting strip It is designed to drop into the vicinity. Air generated in the fertilizer blower 108 is blown into the fertilizer hose 107 via the air chamber 109, and the fertilizer in the fertilizer hose 107 is forcibly conveyed by wind pressure. In the suction hood 110 of the fertilizer blower 108, a heating wire sheet 111 is provided on the bottom surface of the hood where the suction resistance does not occur. As described above, since the heating resistance of the heating wire disappears at the bottom position of the hood, the blowing efficiency of the blower is improved.

  The support structure of the water wheel marker will be described (see FIGS. 21 to 23). The watermill marker 17 is configured such that when the marker is lifted, the fulcrum passing spring beyond the fulcrum P is moved to the retracted position by providing a fulcrum spring 114 for lowering the marker at the lower part of the marker support 112 and the support stay 113. . The marker rods 112 a and 112 b are connected and supported by a pin shaft 115 and are clamped and held via a pressing spring 116. As a result, the left and right markers can be shared, and the external force can be absorbed by contraction of the pressing spring even when an external force due to road surface unevenness is applied. The pin shaft 115 has a small diameter at the portion through which the marker rod 112a is inserted and a large diameter at the portion through which the rod 112b is inserted. It is configured to support tightening.

DESCRIPTION OF SYMBOLS 1 Traveling vehicle body 3 Elevating link apparatus 4 Agricultural work part (seed planting work part)
8 Leveling device 51 Vertical link 52 Mounting frame 53 Detachable hitch 54 Leveling device support frame 55u Vertical rotation arm (upper)
55d Vertical pivot arm (bottom)
56 Leveling frame

Claims (2)

  A lifting link device (3) is provided on the rear side of the traveling vehicle body (1), and a vertical link (51) that moves up and down at the rear end of the lifting link device is provided, and a longitudinal rolling shaft provided on the vertical link (51). A mounting frame (52) that rolls left and right via (24) is provided on the rear side of the vertical link (51), and the agricultural work section (4) is attached via a detachable hitch (53) that is attached to and detached from the mounting frame (52). A leveling device support frame (54) provided on the rear side of the frame (52) and supported by the mounting frame (52) and extending rearward from the mounting frame is provided, and the leveling device support frame (54) is provided from the leveling support frame. A leveling arm (55) extending to the front side is connected, and a leveling frame (56) is connected to the vertical leveling arm (55) to support the leveling device (8) so that the leveling device can be rotated up and down. (54) Agricultural machine leveling frame (56), characterized in that you have configured to intersect duplicated in body side view.   The agricultural working machine according to claim 1, wherein a leveling device support frame (54) is arranged on the left and right of the leveling frame (56).

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