JP2019170325A - Work machine - Google Patents

Abstract

To provide a work machine that achieves a tillage processing function utilizing an existing member.SOLUTION: A work machine according to the present disclosure includes a center work body coupled to a rear part of a travel machine body and a side work machine provided in a side of the center work body, and can change to an accommodation state and a development state. Each of the center work body and the side work body includes a tilling rotor including a rotatably and pivotally supported rotation shaft and a plurality of tilling claws arranged on the rotation shaft. A bearing housing that supports the rotation shaft is provided in an inner end side plate of the side work body, and the bearing housing includes a tillage processing part that moves soil in a field.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a working machine having a tilling function. Specifically, the present invention relates to an agricultural machine having a residual tillage processing function.

  Agricultural working machines having a tilling function such as a rotary working machine and a shaving machine are provided with left and right working parts that can be folded above the central working part on the side of the central working part connected to the rear of a traveling machine such as a tractor. Folding work machines are known. In such a foldable working machine, when the left and right working parts are expanded to extend the working area to the left and right sides, no tilling claws are arranged between the central working part and the left and right working parts. There may be a remaining tillage portion where no tilling work is performed in the field area corresponding to the portion.

  In order to cultivate such a residual tillage part, for example, Patent Document 1 describes a technique of fixing a residual tillage processing blade positioned in front of the tilling shaft to the inner ends of the left and right extension machines. .

JP, 2014-200177, A

  However, in the case of the technique described in Patent Document 1, it is necessary to provide a mounting member such as a reinforcing plate for fixing the residual tillage processing blade separately from the boss member of the tilling shaft, so the number of parts increases. There was a problem to do. Further, in the case of the technique described in Patent Document 1, since the after-plow processing blade cannot be arranged on the tilling shaft, the after-plow processing blade portion fixed to the inner end portions of the left and right extension bodies in the folded state As a result, the size of the entire work machine increases.

  This invention is made | formed in view of the said problem, and makes it a subject to provide the working machine which implement | achieves a residual tilling processing function using the existing member.

  A working machine according to an embodiment of the present invention is a working machine including a central working body coupled to a rear portion of a traveling machine body, and a side working body provided on a side of the central working body. The machine is changeable between a storage state and an unfolded state, and the central working body and the side working body are respectively a rotating shaft that is rotatably supported and a plurality of plows arranged on the rotating shaft. And a bearing housing that supports the rotating shaft is provided on an inner end side plate of the side working body, and the bearing housing has a residual tillage processing unit that moves soil in a field. .

  The bearing housing may have a flange portion that is detachably fixed to the inner end side plate, and the residual tillage processing portion may be detachably fixed to the flange portion.

  Further, the bearing housing may have a flange portion for removably fixing to the inner end side plate, and the residual tillage processing portion may be integrally formed with the flange portion.

  In addition, the residual tillage processing unit may be bent toward the central working body in the expanded state.

  Moreover, the said residual tilling process part may be bent in the same direction as the tilling nail adjacent to the said rotating shaft direction among the several tilling claws of the said center work body in the said unfolding state.

  Moreover, the said residual tilling process part may be bent in the opposite direction to the tilling nail adjacent to the said rotating shaft direction among the several tilling claws of the said side work body in the said unfolding state.

  Moreover, the said residual tilling process part may be arrange | positioned in the rotation locus | trajectory of these several tilling nail in the axial direction arrow of the said rotating shaft.

  ADVANTAGE OF THE INVENTION According to this invention, the working machine provided with the residual tillage processing function which can suppress the increase in a number of parts by utilizing the existing member and is realizable with a compact structure can be provided.

It is a perspective view which shows the structure in the expansion | deployment state of the working machine in one Embodiment of this invention. It is a perspective view which shows the structure of the state which folded the left side work body in the working machine in one Embodiment of this invention. It is a right side perspective view showing composition of a stowage state of a working machine in one embodiment of the present invention. It is a disassembled perspective view which shows the structure of the bearing housing which has the residual tilling process part with which the working machine in one Embodiment of this invention is equipped. It is a front view which shows the whole structure in the expansion | deployment state of the working machine in one Embodiment of this invention. It is a partial front view which shows the structure of the left side work body vicinity in the expansion | deployment state of the working machine in one Embodiment of this invention. It is a partial front view which shows the structure of the right side working body vicinity in the expansion | deployment state of the working machine in one Embodiment of this invention. It is a perspective view which shows the structure of the bearing housing which has the residual tilling process part with which the working machine in one Embodiment of this invention is equipped.

  Hereinafter, an embodiment of a working machine of the present invention will be described with reference to the drawings. However, the working machine of the present invention can be implemented in many different modes and should not be construed as being limited to the description of the examples shown below.

  Note that in the drawings referred to in this embodiment, the same portions or portions having similar functions are denoted by the same reference symbols or similar symbols, and repeated description thereof may be omitted. For example, when the work machine of the present invention is composed of three work bodies, that is, a central work body, a left work body, and a right work body, “C” is shown after the number to indicate that each work body has a part. ”,“ L ”, and“ R ”.

  In the specification and claims of the present application, “upper” indicates a direction away from the field vertically, and “lower” indicates a direction approaching vertically toward the field. Further, “front” indicates a direction in which the traveling machine body is positioned with respect to the work machine, and “rear” indicates a direction 180 ° opposite to the front. “Left” indicates the left when the traveling machine body is located in the direction where the work machine is located, and “Right” indicates the direction opposite to the left by 180 °.

<First Embodiment>
[Configuration of Work Machine 10]
Hereinafter, the configuration of the work machine 10 according to the first embodiment will be described in detail with reference to FIGS. 1 and 2. FIG. 1 is a perspective view showing a configuration of a work machine according to the first embodiment of the present invention. FIG. 2 is a perspective view showing a configuration when the working machine in the first embodiment of the present invention folds the left working body. Note that FIG. 2 is a diagram in which the position of the left working body 10L is changed with respect to FIG.

  As shown in FIG. 1, the work machine 10 according to the present embodiment includes a central work body 10C, a left work body 10L, and a right work body 10R, and has a structure divided into three. The central work body 10C is disposed at the center of the work machine 10 and functions as a work machine body. The left working body 10L and the right working body 10R are attached to the left and right ends of the central working body 10C so as to be rotatable in the vertical direction. The work machine 10 can be folded over the central work body 10C by turning the left work body 10L and the right work body 10R obliquely upward, and can be folded obliquely downward as shown in FIG. Can be deployed.

  Here, a state in which the left work body 10L and the right work body 10R are overlapped with the central work body 10C and folded is referred to as a storage state. The stowed state is a state where the width of the work machine 10 in the direction orthogonal to the traveling direction of the traveling machine body is reduced. In addition, a state where the left working body 10L, the right working body 10R, and the central working body 10C are arranged side by side is referred to as a developed state. The unfolded state is a state in which the work machine 10 is extended in a direction perpendicular to the traveling direction of the traveling machine body.

  Next, the central work body 10C will be described. The central working body 10C supports the top mast 12 and the lower link connecting portion 14 that function as a connecting portion with a traveling machine body such as a tractor, the input shaft 16 that transmits power from the traveling machine body, and the central working body 10C that extends in the left-right direction. Support frame 18, transmission frame (chain case) 20C, gear box 22, central shield cover 24C, tilling rotor (not shown), first central leveling body 28C, second central leveling body 30C, apron control mechanisms 31a and 31b And a central leveler control mechanism 32C.

  The top mast 12 is provided at the front center portion of the central working body 10C, and the lower link connecting portions 14 are provided at two positions on the left and right of the central working body 10C. The top mast 12 and the lower link connecting portions 14 provided at the two left and right positions are respectively connected to the top link of the traveling machine body (not shown) and the lower links (three-point link hitch mechanisms) provided at the two left and right positions. Is attached to the rear part of the traveling machine body so as to be movable up and down. The work machine 10 and the traveling machine body may be connected via an auto hitch frame attached to the three-point link hitch mechanism of the traveling machine body.

  The input shaft 16 is provided in the gear box 22 provided in the front center portion of the central work body 10 </ b> C, and inputs the power transmitted from the traveling machine body to the work machine 10. The input shaft 16 is connected to the PTO shaft of the traveling machine body, and power is transmitted from the PTO shaft through a universal joint or the like.

  The support frame 18 also serves as a main body frame of the central work body 10 </ b> C, and is extended on the left and right sides of the gear box 22 in the left-right direction with respect to the traveling direction of the traveling machine body. Here, a transmission shaft (not shown) is internally provided in the support frame 18 disposed between the gear box 22 and the transmission frame 20C. By this transmission shaft, the power for rotating the tilling rotor is transmitted from the gear box 22 to the transmission frame 20C.

  The central shield cover 24C is provided along the support frame 18 and is disposed so as to cover the top of the tilling rotor. The soil crushed by the tilling rotor hits the inner wall of the central shield cover 24C and is further crushed, and falls back to the field again. Thus, the central shield cover 24 </ b> C has both the function of preventing scattering of the soil wound up by the tilling rotor and the function of crushed soil.

  The tilling rotor of the central working body 10C has a configuration in which a plurality of tilling claws are attached to a rotating shaft (not shown) rotatably supported below the central shield cover 24C using a flange or a holder. Have. The power input from the input shaft 16 is shifted in the gear box 22, transmitted via the transmission shaft in the support frame 18, the transmission frame 20 </ b> C, and the like, and converted into rotary motion of the tilling rotor.

  The first central leveling body 28C is rotatably attached to the central shield cover 24C, and is usually called an apron. The second central leveling body 30C is attached to the first central leveling body 28C so as to be rotatable in the vertical direction, and is generally called a leveler. The first central leveling body 28C has a role as a cover for returning mud and soil scattered by rotation of the tillage rotor of the central working body 10C and a leveling member that performs leveling work by pressing the second central leveling body 30C against the field. As a role. The second central leveling body 30C plays a role as a leveling member for leveling the field surface by directly contacting the field.

  The apron control mechanisms 31a and 31b are installed between the central shield cover 24C and the first central leveling body 28C, and function as means for controlling the vertical rotation of the first central leveling body 28C. The apron control mechanisms 31a and 31b have a pressure mode that prevents the first central leveling body 28C from rotating upward and a non-pressurization mode that does not prevent the first central leveling body 28C from rotating upward. In the pressurizing mode, an urging force that prevents the first central leveling body 28C from rotating upward is applied. This urging force is realized by the reaction force of the springs arranged on the link rods constituting the apron control mechanisms 31a and 31b. By setting the apron control mechanisms 31a and 31b to the pressurizing mode, it is possible to improve the soil breaking performance and leveling performance by the first central leveling body 28C, and it is possible to finish the field more efficiently.

  The central leveler control mechanism 32C is installed between the central shield cover 24C and the second central leveling body 30C, and functions as means for controlling the vertical rotation of the second central leveling body 30C. The central leveler control mechanism 32C has a soiling mode for fixing the second central leveling body 30C in a downward direction (earthing state) and a leveling mode that does not prevent the second central leveling body 30C from rotating in the vertical direction. Switching is possible. The mode switching is realized by restricting or releasing the operation of the link rod constituting the central leveler control mechanism 32C.

  Next, the left working body 10L will be described. The left working body 10L includes a left shield cover 24L, a tilling rotor 26L (see FIG. 2) disposed below the left shield cover 24L, a transmission frame (chain case) 20L, a first left leveling body 28L, and a second left leveling body. 30L, a left leveler control mechanism 32L, and a left extension leveling body rotating mechanism 34L. The roles of the left shield cover 24L, the transmission frame 20L, the first left leveling body 28L, the second left leveling body 30L, and the left leveler control mechanism 32L are the same as the corresponding elements in the central working body 10C described above. Therefore, the description here is omitted.

  Here, as shown in FIG. 2, the tilling rotor 26L includes a rotation shaft 26La and a plurality of tilling claws 26Lb arranged around the rotation shaft 26La via a holder. When the rotating shaft 26La is rotated by the power transmitted through the transmission frame 20L, the tilling claws 26Lb disposed around the rotating shaft 26L rotate at the same time, thereby crushing and stirring the soil in the field. When the tilling claw 26Lb rotates about the rotation axis 26La, the largest locus drawn by the tilling claw 26Lb is referred to as a rotation locus. Although illustration is omitted, the tilling rotor included in the central working body 10C and the right working body 10R has the same configuration as the tilling rotor 26L.

  Returning to FIG. 1, the left extended leveling body rotating mechanism 34L is a mechanism for rotating the left extended leveling body 36L that is rotatably connected to the second left leveling body 30L of the left working body 10L. is there. The left extension leveling body 36L is provided to extend from the end of the left work body 10L in the left direction of the work implement 10, and takes charge of leveling work in an area outside the left work body 10L. The second left leveling body 30L and the left extended leveling body 36L are rotatably connected by the extended leveling body connecting portion 38L, so that the left side left leveling body 36L is folded toward the second left side leveling body 30L. It can be turned.

  Here, in the present embodiment, the left extended leveling body rotating mechanism 34L includes a drive motor unit 34La, a rotating arm 34Lb, and a connecting wire 34Lc. One end of the rotating arm 34Lb is connected to the drive motor unit 34La, and the other end is connected to the connecting wire 34Lc. The connecting wire 34Lc has one end connected to the rotating arm 34Lb and the other end connected to the left extension leveling body 36L.

  When the drive motor unit 34La operates, a rotational driving force is generated, and the rotating arm 34Lb rotates in a substantially horizontal direction. In conjunction with the turning operation of the turning arm 34Lb, the left extended leveling body 36L pulled by the connecting wire 34Lc rotates via the extended leveling body connecting portion 38L. Thereby, accommodation and expansion | deployment of the left side extension leveling body 36L are attained.

  In the present embodiment, an example in which the left extended leveling body rotating mechanism 34L is configured by the drive motor unit 34La, the rotating arm 34Lb, and the connecting wire 34Lc is shown. Other mechanisms may be used as long as the extended leveling body 36L is rotatable.

  Next, the right working body 10R will be described. The right working body 10R includes a right shield cover 24R, a tilling rotor (not shown) disposed below the right shield cover 24R, a transmission frame (chain case) 20R, a first right leveling body 28R, and a second right leveling body 30R. The right leveler control mechanism 32R and the right extension leveling body rotating mechanism 34R are provided. Here, the roles of the right shield cover 24R, the transmission frame 20R, the first right leveling body 28R, the second right leveling body 30R, the right leveler control mechanism 32R, and the right extension leveling body rotating mechanism 34R are respectively described above. Since it is the same as each corresponding element in the left working body 10L, description here is omitted. Further, the right extended leveling body 36R and the extended leveling body connecting part 38R are the same as the left side extended leveling body 36L and the extended ground leveling body connecting part 38L.

  Furthermore, the working machine 10 according to the present embodiment is provided with the center digging plates 40Ca and 40Cb, the left lining plate 40L, and the right digging plate 40R on the central working body 10C, the left working body 10L, and the right working body 10R, respectively. . These are plates for controlling the water flow (actually the flow of water containing soil) generated during the scraping operation, and by providing these mulching plates, the finish of the field surface can be improved.

  For example, the central mulching plates 40Ca and 40Cb are provided at positions where soil is returned to the cage such as a tire of a traveling machine body that travels in front of the work machine 10, and contributes to the flattening of the field undulation caused by the cage. Further, the left side panel 40L and the right side panel 40R bring the soil inward, and draw the surrounding water flow into the back side of each side panel. As a result, even if the hail floats outside the ends of the left work body 10L and the right work body 10R, it is drawn into the respective tillage rotors by the water flow, which contributes to the improvement of the finish on the field surface.

  In addition, the working machine 10 according to the present embodiment includes a left leveler control mechanism 32L and a right leveler control mechanism 32R on the left side work body 10L and the right side work body 10R, respectively. These left-side leveler control mechanism 32L and right-side leveler control mechanism 32R are means for regulating or releasing the rotation of the second left-side leveling body 30L and the second right-side leveling body 30R in the vertical direction, respectively, similarly to the central leveler control mechanism 32C. Function as.

  The left working body 10L and the right working body 10R described above are rotated by the action of the rotating cylinders 46a and 46b via the working body rotating mechanisms 44a and 44b provided at both ends of the central working body 10C. It will be in the storage state or unfolded state. At that time, the first central leveling body 28C and the first left leveling body 28L, and the first central leveling body 28C and the first right leveling body 28R are connected by the first connecting portions 48a and 48b, respectively. In addition, the second central leveling body 30C and the second left leveling body 30L, and the second central leveling body 30C and the second right leveling body 30R are connected by the second connecting portions 50a and 50b, respectively.

  In the present specification and claims, the collective term for the left working body 10L and the right working body 10R may be referred to as a “side working body”. Also, a general term that combines the first left leveling body 28L and the first right leveling body 28R is referred to as “first side leveling body”, or a general term that includes the second left leveling body 30L and the second right leveling body 30R. Sometimes referred to as “second lateral leveling body”.

[Configuration of afterplow processing unit]
FIG. 3 is a right side perspective view showing the configuration of the storage state in the working machine 10 according to the embodiment of the present invention. As shown in FIG. 3, a bearing housing 90 </ b> C that supports a rotation shaft 26 </ b> Ca (not shown) of the tilling rotor 26 </ b> C is provided at a side end of the central working body 10 </ b> C. The bearing housing 90 </ b> C is fixed to a side plate (side plate) 70 </ b> C provided at a side end portion of the central working body 10 </ b> C with a bolt (a countersunk bolt 65). In the present embodiment, the work machine 10 is divided into a central work body 10C, a left work body 10L, and a right work body 10R, and each work body is provided with a tilling rotor, and each work body has a tilling rotor. Each of the left and right side ends has a transmission frame or a bearing housing including a bearing housing for supporting the rotating shaft. The working machine 10 according to the present embodiment expands the left and right side working bodies, whereby the tilling rotor of the left and right side working bodies and the tilling rotor of the central working body 10C are linearly connected to each other. Work can be performed in the width extended to the direction.

  As shown in FIG. 3, a bearing housing 60R that supports the rotation shaft 26Ra of the tilling rotor 26R is provided on the side plate (inner end side plate) 70R located at the inner end (the central work body 10C side) end of the right work body 10R. Provided. As shown in FIGS. 3 and 4, the bearing housing 60 </ b> R extends to the cylindrical portion 62 </ b> R that supports the end portion of the rotation shaft 26 </ b> Ra and the peripheral edge of the cylindrical portion 62 </ b> R, and the inner end side plate 70 </ b> R of the right working body 10 </ b> R. A flange portion 61R for fixing to the ridge, and a residual tillage processing portion 63R extending to the outer end portion of the flange portion 61R.

  The bearing housing including the after-plow processing unit is not only the bearing housing 60R provided at the inner end (the central working body 10C side) of the right working body 10R, but also the inner end (the central working body 10C side) of the left working body 10L. The bearing housing 60 </ b> L provided in the above may also include a residual tilling processing unit 63 </ b> L.

  That is, the bearing housing 60L provided at the inner end (the central working body 10C side) of the left working body 10L may have the same configuration as the bearing housing 60R, and the bearing housing 60L is the end of the rotating shaft 26La. Is extended to the peripheral edge of the cylindrical portion 62L, the flange portion 61L for fixing to the inner end side plate 70L of the left working body 10L, and the outer end portion of the flange portion 61L. It may have a residual tilling processing unit 63L.

  FIG. 4 is an exploded perspective view showing a configuration of a bearing housing having a residual tillage processing unit provided in the working machine according to the embodiment of the present invention. In this embodiment, the bearing housing 60R provided at the inner end (the central working body 10C side) of the right working body 10R and the bearing housing 60L provided at the inner end (the central working body 10C side) of the left working body 10L are the same. It has a configuration. Hereinafter, the bearing housing 60R of the right working body 10R will be described unless otherwise specified.

  As shown in FIG. 4, the flange portion 61R has a plurality of first fastening holes 64 at one end for attaching the bearing housing 60R to the inner end side plate 70R of the right working body 10R with bolts. In the present embodiment, the flange portion 61R has a plurality of first fastening holes 64 for attaching the after-plow processing portion 63R with bolts at the other end.

  Since the flange portion 61R of the bearing housing 60R faces the bearing housing 90C provided in the inner end side plate 70C of the central working body 10C in the expanded state, the flange portion 61R faces the first fastening hole 64 of the flange portion 61R. A countersunk bolt 65 having a low protrusion height is fixed. Further, in order to bury the head of the countersunk bolt 65, the first fastening hole 64 of the flange portion 61R is subjected to a counterbore (counterbore) process in which the opening diameter increases toward the bolt head.

  In the unfolded state, the after-plow processing unit 63R extends in a direction perpendicular to the rotation shaft 26Ra of the tilling rotor 26R, and the tip of the after-plow processing unit 63R is bent toward the central work body 10C. The residual tillage processing unit 63R bites into the field when working in the unfolded state, and moves the soil of the field along with the movement of the traveling machine body to eliminate the uneven tillage of the field. By providing the after-plowing processing unit 63R on the inner end side plate 70R of the right working body 10R, the field portion located between the tilling claw 26Cb of the central working body 10C and the tilling claw 26Rb of the right working body 10R in the unfolded state. Can be cultivated. Thereby, tillage unevenness is reduced and the soil can be crushed uniformly.

  If there is no remaining tilling processing unit 63R, the field portion located between the tilling claw 26Cb of the central working body 10C and the tilling claw 26Rb of the right working body 10R remains unplowed in the unfolded state, and the tillage unevenness Or the joints of the work bodies remain streaks.

  Unlike the tilling claws 26Cb and 26Rb, the residual tilling processing unit 63R does not rotate with the rotation of the rotation shafts 26Ra and 26Ca, but, like the tilling claws 26Cb and 26Rb, the direction orthogonal to the rotation shafts 26Ra and 26Ca. The field between the central work body 10C and the left and right side work bodies 10L, 10R, which is similar to the tilling nail and has a function of plowing the field and plowing the field. It is a member having a residual tillage processing function for cultivating an area.

  Since the residual tillage processing unit 63R is a member that cultivates the field, there is a risk that it may be worn out by being used for a long period of time or may be damaged by contact with an obstacle such as a stone. Since the after-plowing processing unit 63R in the present embodiment is configured separately from the flange portion 61R of the bearing housing 60R, when the after-plowing processing unit 63R is worn or damaged, only the after-plowing processing unit 63R is used. It can be removed from the flange portion 61R and easily replaced with a new residual tillage processing portion 63R. As shown in FIG. 4, the flange portion 61R and the after-plow processing portion 63R of the bearing housing 60R include a first fastening hole 64 formed in the flange portion 61R and a second fastening hole 67 formed in the after-plow processing portion 63R. And a countersunk bolt 65 may be inserted from the flange portion 61R side and fastened using a nut 68 and a washer 69 from the after-cultivation processing portion 63R side.

  Moreover, when inserting the countersunk bolt 65 from the flange part 61R side as shown in FIG. 3, it is not necessary to carry out the counterbore process to the 2nd fastening hole 67 formed in the residual tilling process part 63R. Whether or not the second fastening hole 67 is subjected to counterboring depends on the vertical relationship between the first fastening hole 64 formed in the flange portion 61R and the second fastening hole 67 formed in the residual tillage processing portion 63R. It can be changed as appropriate.

  As described above, the flange section 61R of the bearing housing 60R and the afterplow processing section 63R are formed as separate bodies and are detachably fixed by bolts, nuts, and the like, so that the afterplow processing section 63R is plowed. Even if it becomes worn or damaged due to work and cannot withstand use, it is possible to easily replace only the after-plow processing unit 63R, and there is no need to replace the members together with the bearing housing 60R. Easy.

  In the above, the bearing housing 60R provided on the inner end side plate 70R of the right working body 10R shown in FIG. 3 has been described. However, the same description is valid for the bearing housing 60L provided on the inner end side plate 70L of the left working body 10L. To do.

[Arrangement structure of tillage claws and residual tillage processing section]
The front view in the expansion | deployment state of the working machine in one Embodiment of this invention is shown in FIGS. FIG. 5 is a front view showing the overall configuration of the working machine in the unfolded state according to the embodiment of the present invention. FIG. 6 is a partial front view showing a configuration in the vicinity of the left working body when the working machine is unfolded in the embodiment of the present invention. FIG. 7 is a partial front view showing the configuration in the vicinity of the right working body when the working machine is unfolded in one embodiment of the present invention.

  As shown in FIGS. 5 to 7, the bearing housings 60 </ b> L and 60 </ b> R are disposed on the inner end side plates 70 </ b> L and 70 </ b> R adjacent to the central work body 10 </ b> C of the left and right side work bodies, respectively. The bearing housings 60L and 60R include after-plowing processing units 63L and 63R, respectively. The after-plowing processing unit 63L is disposed between the left working body 10L and the central working body 10C, and the remaining plowing processing unit 63R is the right working body 10R. And the central work body 10C.

  Further, as shown in FIGS. 5 to 7, the remaining tillage processing units 63L and 63R include a plurality of tilling claws 26Cb and 26Lb disposed on the rotation shafts 26Ca, 26La and 26Ra of the respective working bodies 10C, 10L and 10R. It is arranged side by side with 26Rb.

  The remaining tillage processing units 63R and 63L may be configured at positions corresponding to the configuration of the adjacent tilling claws, that is, the tilling claws arranged at the extreme ends of the central working body 10C and the left and right side working bodies. As shown in FIG. 5, in the present embodiment, the remaining tillage processing units 63R and 63L include the tilling claws arranged at the left and right ends of the central work body 10C and the innermost ends (center of the left and right side work bodies). It is arranged in the middle with the tilling claw arranged on the working body side).

  Moreover, as shown in FIGS. 5-7, the length by which the residual tilling process part 63R is extended in the direction orthogonal to a rotating shaft is comparatively short compared with other tillage claws. . Specifically, the remaining tillage processing unit 63R is disposed within the rotation trajectory of the plurality of tilling claws 26Cb and 26Rb of the central working body 10C or the right working body 10R as viewed in the axial direction of the rotation shaft 26Ra. In addition, the direction in which the end portion of the remaining tillage processing unit 63R bends is the tilling claw 26Cb disposed at the rightmost end portion of the central working body 10C among the plurality of tilling claws 26Cb of the central working body 10C, It is bent in the same direction as the tilling claw 26Cb adjacent to the residual tilling processing unit 63R.

In addition, the direction in which the end portion of the afterplow processing unit 63R bends is arranged at the endmost portion on the central work body 10C side among the plurality of tilling claws of the left and right side work bodies, and is adjacent to the afterplow processing unit 63R. Bending in the opposite direction to the tilling nail. The bending angle of the afterplow processing unit 63R is only required to be formed at an appropriate angle for moving the soil in the field, and can be appropriately designed according to the configuration of the tilling claws of the adjacent left and right side working bodies. .

  As shown in FIG. 6, the left working body 10L includes a left transmission frame 20L at the outer side end portion of the working body 10, and is provided on the inner end side plate 70L at the side end portion on the central working body 10C side. A bearing housing 60L is provided. The bearing housing 60L has a residual tillage processing portion 63L that comes into contact with the farm field when working in the expanded state. A central transmission frame 20C is provided at the left end of the central working body 10C adjacent to and adjacent to the inner end side plate 70L. Thus, since the central transmission frame 20C is disposed between the central working body 10C and the left working body 10L, the field area corresponding to the width of the central transmission frame 20C is the tilling claw 26Lb of the left working body 10L. Alternatively, it is an area that is not cultivated by the cultivating claws 26Cb of the central work body 10C.

  The left working body 10L in the present embodiment includes a bearing housing 60L having an afterplow processing unit 63L on the inner end side plate 70L on the central working body 10C side, and the afterplow processing unit 63L is the central working body 10C. The end is bent to the side, that is, the central transmission frame 20C side. By having such a configuration, the field area corresponding to the width of the central transmission frame 20C is cultivated by the residual tillage processing unit 63L, and the tillage unevenness can be reduced by moving the soil.

  In the present embodiment, the inner end side plate 70L on the central working body 10C side of the left working body 10L is provided with a bearing housing 60L having a residual tillage processing portion 63L. Unlike this, the left side of the central working body 10C is provided. You may provide a residual tilling process part in the bearing housing 90C provided in the inner end side board 70C by the side of the working body 10L. However, since the central transmission frame 20C may be disposed at the side end of the central working body 10C as in the present embodiment, the left and right sides of the central working body 10C are provided with left and right plowing treatment units rather than providing a residual tillage processing unit. The degree of freedom in design is higher when the after-plowing treatment section is provided in the bearing housing of the lateral working body.

  Moreover, as shown in FIG. 6, the end part of the afterplow processing unit 63L includes the tilling claw 26Cb adjacent to the left plowing processing unit 63L that is the closest to the left side working unit 10L among the tilling claws 26Cb of the central working unit 10C. Bend in the same direction. Further, the end portion of the remaining tillage processing unit 63L bends in the opposite direction to the tilling claw 26Lb adjacent to the remaining tilling processing unit 63L that is closest to the central working body 10C among the tilling claws 26Lb of the left working unit 10L. However, the bending direction of the residual tillage processing unit 63L and the tilling claw adjacent thereto is not limited to this.

  As shown in FIG. 7, the right working body 10R includes a right transmission frame 20R at the outer side end portion of the working body 10, and is provided on the inner end side plate 70R at the side end portion on the central working body 10C side. A bearing housing 60R is provided. The bearing housing 60 </ b> R includes a residual tillage processing unit 63 </ b> R that comes into contact with the farm field when working in the expanded state.

  In the present embodiment, no transmission frame is arranged between the central working body 10C and the right working body 10R, but the right side plate of the central working body 10C is disposed between the central working body 10C and the right working body 10R. Since the bearing housing 90C (see FIG. 3) provided in 70C and the bearing housing 60R provided on the inner end side plate 70R of the right working body 10R are disposed, the corresponding field area is the tilling claw 26Rb of the right working body 10R. Alternatively, it is an area that is not cultivated by the cultivating claws 26Cb of the central work body 10C.

  The right working body 10R in the present embodiment includes a bearing housing 60R having an afterplow processing unit 63R on the inner end side plate 70R on the central working body 10C side, and the afterplow processing unit 63R is the central working body 10C. The end is bent to the side. By having such a configuration, the soil in the field area corresponding to the space between the central work body 10C and the right work body 10R can be moved by the residual tillage processing unit 63R to eliminate tillage unevenness.

  As shown in FIG. 7, the end of the after-plow processing unit 63R includes the tilling claw 26Cb adjacent to the after-plowing processing unit 63R that is closest to the right side working unit 10R among the tilling claws 26Cb of the central working unit 10C. Bend in the same direction. Further, the end portion of the remaining tillage processing portion 63R bends in the opposite direction to the tilling claw 26Rb adjacent to the remaining tillage processing portion 63R that is closest to the central working body 10C among the tilling claws 26Rb of the right working body 10R. However, the bending direction of the residual tilling processing unit 63R and the tilling claws adjacent thereto is not limited to this.

  In the present embodiment, the bearing housings 60L and 60R having the residual tillage processing portions 63L and 63R are arranged on the inner end side plates 70L and 70R adjacent to the central work body 10C among the left and right side work bodies. A corresponding field area can be cultivated between the side work body and the central work body 10C.

Second Embodiment
[Configuration of afterplow processing unit]
FIG. 8 is a diagram illustrating a configuration of bearing housings 80L and 80R according to the second embodiment. In the working machine 10 according to the present embodiment, the bearing housings 80L and 80R having the residual tillage processing units 83L and 83R are arranged on the inner end side plates 70L and 70R adjacent to the central working body 10C among the left and right side working bodies. is doing. The bearing housings 80L and 80R according to the present embodiment are different from the first embodiment in that residue processing portions 83L and 83R are integrally formed with the flange portions 81L and 81R, but the other configurations are the same. Hereinafter, the description which overlaps with 1st Embodiment is abbreviate | omitted.

  FIG. 8 is an exploded perspective view showing a configuration of a bearing housing having a residual tillage processing unit provided in a working machine according to an embodiment of the present invention. The bearing housing 80R provided at the inner end (the central working body 10C side) of the right working body 10R and the bearing housing 80L provided at the inner end (the central working body 10C side) of the left working body 10L in the present embodiment are the same. It has a configuration. Hereinafter, the bearing housing 80R of the right working body 10R will be described unless otherwise specified.

  As shown in FIG. 8, the flange portion 81R has a plurality of first fastening holes 84 for attaching the bearing housing 80R to the right working body 10R with bolts at one end. Since the flange portion 81R of the bearing housing 80R faces the bearing housing 90C provided in the inner end side plate 70C of the central work body 10C in the expanded state, it faces the first fastening hole 84 of the flange portion 81R. The countersunk bolt 65 (refer FIG. 4) with the low protrusion height of a part is fixed. Further, in order to bury the head of the countersunk bolt 65, the first fastening hole 84 of the flange portion 81R is subjected to a counterbore (counterbore) process in which an opening diameter increases toward the bolt side.

  The remaining tillage processing unit 83R extends in a direction orthogonal to the rotation shaft 26Ra of the tilling rotor 26R in the unfolded state, and the tip of the remaining tilling processing unit 83R is bent toward the central work body 10C. The residual tillage processing unit 83R bites into the field when working in the unfolded state, and eliminates uneven tillage by moving the soil in the field along with the movement of the traveling machine body. By providing the after-plowing processing unit 83R on the inner end side plate 70R of the right working body 10R, a field portion located between the tilling claw 26Cb of the central working body 10C and the tilling claw 26Rb of the right working body 10R in the unfolded state. Can be cultivated.

  In the present embodiment, the residual tillage processing portion 83R is formed integrally with the flange portion 81R. Since it is not necessary to use a fastening member between the after-plow processing part 83R and the flange part 81R, the number of parts can be further reduced. Further, the arrangement structure of the tilling claws and the residual tilling processing unit is the same as that of the first embodiment.

  According to the present embodiment, by utilizing an existing member called a bearing housing, it is possible to plow the corresponding field area between the central working body and the side working body of the folding work machine. It can be reduced and the crushed soil can be made uniform. In addition, it is possible to realize a residual tillage processing function with a simple configuration while suppressing an increase in the number of parts.

  The present invention has been described above with reference to the drawings. However, the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the spirit of the present invention. For example, as long as the gist of the present invention is included in the scope of the present invention as long as it includes the gist of the present invention, those skilled in the art have appropriately added, deleted, or changed the design based on the tilling claw of each embodiment and its wear determination method. Included in the range. Furthermore, the above-described embodiments can be appropriately combined as long as there is no contradiction between them, and technical matters common to the embodiments are included in the embodiments even if there is no explicit description.

  In addition, even for other operational effects different from the operational effects brought about by the aspects of the above-described embodiments, those that are apparent from the description of the present specification, or that can be easily predicted by those skilled in the art, Of course, it is understood that the present invention provides.

10: Working machine, 10C: Central working body, 10L: Left working body, 10R: Right working body, 20C: Central transmission frame, 20L: Left transmission frame, 20R: Right transmission frame, 26C, 26L, 26R: Cultivation rotor, 26Ca, 26La, 26Ra: rotating shaft, 26Cb, 26Lb, 26Rb: tilling claw, 60L, 60R: bearing housing, 61L, 61R: flange portion, 62L, 62R: cylindrical portion, 63L, 63R: residual tillage processing portion, 64, 84: First fastening hole, 65: Countersunk bolt, 67: Second fastening hole, 80L, 80R: Bearing housing, 81L, 81R: Flange part, 82L, 82R: Cylindrical part, 83L, 83R: Afterplow treatment part, 70L , 70R: side plate

Claims (7)

A central working body connected to the rear of the traveling machine body;
A working machine comprising a side working body provided on a side of the central working body,
The working machine can be changed to a stored state and a deployed state,
The central working body and the side working body each include a tilling rotor having a rotating shaft rotatably supported and a plurality of tilling claws arranged on the rotating shaft,
A bearing housing that supports the rotating shaft is provided on the inner end side plate of the side working body,
The said bearing housing is a working machine which has the residual tilling process part which moves the soil of a farm field. The work machine according to claim 1, wherein the bearing housing has a flange portion that is detachably fixed to the inner end side plate, and the residual tillage processing portion is detachably fixed to the flange portion. The work machine according to claim 1, wherein the bearing housing has a flange portion that is detachably fixed to the inner end side plate, and the residual tillage processing portion is integrally formed with the flange portion. The work implement according to any one of claims 1 to 3, wherein the residual tillage processing unit is bent toward the central working body in the unfolded state. The said residual tilling process part is bent in the same direction as the tilling nail adjacent to the said rotating shaft direction among the several tilling claws of the said center work body in the said unfolding state. The working machine according to any one of the above. The said remaining tilling process part is bent in the opposite direction to the tilling nail adjacent to the said rotating shaft direction among the several tilling nail | claw of the said side work body in the said unfolding state. The working machine according to any one of the above. The work implement according to any one of claims 1 to 6, wherein the remaining tillage processing unit is disposed in a rotation trajectory of the plurality of tilling claws as viewed in an axial direction of the rotation shaft.