JP5973242B2 - Depth display device for shaving machines - Google Patents

Description

  The present invention provides a working depth of a shaving work machine provided with a second leveling plate that is provided at the rear of a first leveling plate for leveling the cultivated soil cultivated by a cultivating rotor so as to be rotatable in the vertical direction and level the surface of the cultivated soil. The present invention relates to a display device.

  Such a shaving machine having a second leveling plate at the rear part of the first leveling plate is connected to the rear part of the traveling machine body that can generally travel so as to be movable up and down via a three-point link coupling mechanism. Do the scribing work as it travels forward. The raising / lowering operation of the substitute working machine is performed by an operator on the traveling machine body using an operation switch provided on the traveling machine body.

  When performing shaving work with this shaving machine, if there is unevenness on the farming paddle in the field, the shaving work machine also moves up and down as the traveling machine moves up and down, and the cultivated soil cultivated by the tilling rotor The plowing depth changes. This change in tilling depth adversely affects the growth of rice.

  Therefore, the plowing depth can be made constant by the operator who has boarded the traveling machine body adjusting the vertical position of the substitute work machine by operating the operation switch in accordance with the unevenness of the tiller during the substitute work. However, since the shaving operation is an operation performed by putting water into the field, there is a possibility that the actual plowing depth may be mistaken for some amount of water to make the plowing depth constant.

  In view of this, there has been proposed a substitute working machine in which a tilling depth check gauge serving as a guide for tilling depth is provided at the front end portion of the rotor cover that covers the upper part of the rotary working body (see Patent Document 1). This plowing depth check gauge has a shape in which the front side in the traveling direction is retracted backward as it goes from the top to the bottom. With this plowing depth check gauge, the plowing depth dimension of the rotary work body can be confirmed based on the amount of the gauge surface protruding downward from the end of the rotor cover during the plowing operation and immersing the non-plowing plow soil surface.

JP 2007-330181 A

  This conventional plowing depth check gauge is for an operator who has boarded a traveling machine body to visually recognize the amount that the gauge surface is immersed in the non-generation shaved soil surface. For this reason, there is a possibility that the operator mistakes the amount of immersion of the gauge surface into the non-scratched soil surface depending on the amount of water put in the field. If the amount of immersion of the gauge surface is misunderstood, the position adjustment of the tilling rotor by the operator is also erroneously adjusted, and the tilling depth cannot be made constant.

  The present invention has been made in view of such a problem, and provides a tilling depth display device for a tilling work machine that can accurately adjust the position of the tilling rotor and keep the tilling depth constant at the time of shaving work. The purpose is to provide.

In order to solve such a problem, a tilling depth display device of a substitute working machine of the present invention includes a cover portion (shield cover 10 in the embodiment) that covers an upper portion of a tilling rotor that is rotatably supported by the body, A first leveling plate disposed on the rear portion of the cover portion so as to be pivotable in the vertical direction and leveling the cultivated soil cultivated by the tilling rotor, and disposed on the rear portion of the first leveling plate so as to be pivotable in the vertical direction. This is a tilling depth display device of a shaving work machine provided with a second leveling plate for leveling the cultivated soil surface, one end side being rotatably provided on the machine body and the other end side extending rearward in the machine body traveling direction. A swing arm capable of swinging in the direction, and a connecting rod connected between the other end of the swing arm and the upper surface of the second leveling plate, and a first corresponding to the tilling depth by the tilling rotor Phosphorus rotating up and down as the second leveling plate rotates relative to the leveling plate A mechanism portion, is fixed to the machine body, a display panel symbol is displayed indicating the extent to which different of Kofuka, one end is fixed to the swing arm, the display panel other end in accordance with the rotation of the link mechanism portion And a plowing depth display unit for instructing a plowing depth in accordance with the rotation of the link mechanism unit, and the display unit of the display board is a rotation of the swing arm. center characterized that you have provided an arc shape around the (claim 1).

  The pointer arm of the present invention is provided with a pointer for indicating the display on the display plate, and the pointer is a swing arm centered on a pivot point (shaft portion 43 in the embodiment) on the machine body side of the swing arm. The display portion of the display board has substantially the same shape as the movement locus of the pointer in a side view (claim 2).

  Further, the display board of the present invention is provided with an indication that the second leveling board is located at the earthing position where the earthing work can be performed by the second leveling board. 3).

  According to the tilling depth display device of the shaving work machine according to the present invention, the shaving work having the above-described characteristics can accurately adjust the position of the tilling rotor and make the tilling depth constant during the shaving work. A working depth display device can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure for demonstrating the tilling depth display apparatus concerning one Embodiment of this invention, and the shaving work machine in which this is mounted, The figure (a) shows the structure figure of the side surface side of a shaving work machine, (B) shows the top view of a working depth display apparatus. The top view of the shaving work machine by which the working depth display apparatus is mounted is shown. The enlarged plan view of a working depth display apparatus is shown. It is a figure for demonstrating the action | operation of the plowing depth display apparatus when a plowing depth is comparatively shallow, the figure (a) is a structure figure by the side of a shaving work machine, and the figure (b) is a plowing depth. It is a top view of a display apparatus. It is a figure for demonstrating the action | operation of the plowing depth display apparatus when a plowing depth is comparatively deep, The figure (a) is a structure figure by the side of a shaving work machine, The figure (b) is a plowing depth. It is a top view of a display apparatus. It is a figure for demonstrating the action | operation of the tilling depth display apparatus when the shaving work machine exists in the state lifted via the three-point link connection mechanism of the traveling machine body, The figure (a) is the side of the shaving work machine FIG. 2B is a plan view of the tilling depth display device. It is a figure for demonstrating the action | operation of the tilling depth display apparatus when a 2nd leveling board exists in a soiling position, The figure (a) is a structure figure of the side surface side of a shaving work machine, The figure (b) It is a top view of a working depth display device.

  Hereinafter, preferred embodiments of the present invention will be described with reference to FIGS. The present embodiment will be described by taking as an example a proxy-working machine capable of folding and unfolding left and right work bodies on both sides of the work-machine main body. First, before explaining the tilling depth display device according to the present invention, a shaving work machine will be described with reference to FIG. 1 (a) (side-side structure diagram) and FIG. 2 (plan view).

  As shown in FIG. 1 and FIG. 2, the substitute working machine 1 is attached to the rear part of the traveling machine body 90 and advances along with the forward traveling of the traveling machine body 90 to perform the substitute work. A work machine body 2 disposed at the center of the direction, and a work body left 20L and a work body right 20R that are pivotally attached to the left and right ends of the work machine. 20L and work body right 20R form a three-part structure.

  The work machine body 2 is connected to a front part of a machine body 5 having a main frame 3 extending in the left-right direction, and a three-point link coupling mechanism (not shown) provided at the rear part of the travel machine body 90 is connected to the rear part of the travel machine body 90. On the other hand, it is mounted so that it can be raised and lowered. A gear box 6 having an input shaft 6a protruding forward is provided at the center in the left-right direction of the main frame 3, and power is input from the PTO shaft of the traveling machine body 90 through a power transmission means such as a universal joint to the input shaft 6a. To be communicated to.

  A transmission frame (chain case) 8 and a side frame 9 are suspended from the left and right ends of the main frame 3, and a number of tilling claws are attached between the transmission frame (chain case) 8 and the lower portion of the side frame 9. The tilling rotor 13 is rotatably supported. A transmission mechanism is provided in the main frame 3, and this transmission mechanism is coupled to a transmission mechanism in the transmission frame (chain case) 8, so that the power transmitted to the input shaft 6 a is transmitted to the work machine via these transmission mechanisms. It is transmitted to the tilling rotor 13 and the working body left 20L of the main body 2 and the tilling rotor provided on the working body right 20R, and the tilling rotor 13 and the working body left 20L and the working body right 20R of the work machine main body 2 are provided. The rotor is configured to rotate in a predetermined direction.

  A shield cover 10 is provided between the transmission frame (chain case) 8 and the side frame 9 to cover the top of the tilling rotor 13. A first leveling plate 11 is attached to the rear end portion of the shield cover 10 so that the front end portion is rotatably attached in the vertical direction and the rear side extends obliquely downward. The rear end portion of the first leveling plate 11 cultivates the soil. The surface is leveled. A second leveling plate 12 is attached to the rear end portion of the first leveling plate 11 so as to be rotatable in the vertical direction, and the cultivated soil surface of the field is leveled by the second leveling plate 12.

  The left and right ends of the work machine body 2 are provided with shaft portions 14 extending in the front-rear direction at positions above the shield cover 10, and the work body left 20L and the work body right 20R rotate in the vertical direction around the shaft portion 14. It is provided freely. The work body left 20L and the work body right 20R move between a storage position where the worker folds the work machine body 2 above and a deployment position Pt which is developed to the side of the work machine body 2.

  Since the work body left 20L and the work body right 20R are symmetrical structures, the work body left 20L will be described, and the work body right 20R will be denoted by the same reference numerals as those of the work body left 20L, and the description thereof will be omitted. . The work body left 20L is provided with side frames 22L and 23L on both the left and right sides. A tilling rotor is rotatably supported between the lower portions of the side frames 22L and 23L, and the upper portions of the side frames 22L and 23L. A shield cover left 24L that covers the top of the tillage rotor is provided between them. A first leveling plate left 26L is attached to the rear end of the shield cover left 24L so as to be rotatable in the vertical direction, and a second leveling plate left 28L is rotated in the vertical direction at the rear end of the first leveling plate left 26L. It is attached movably.

  The first leveling plate left 26L and the second leveling plate left 28L are joined to the first leveling plate 11 and the second leveling plate 12 of the work machine body 2 when the work body left 20L is deployed, and the first leveling plate left 26L and the second leveling plate left 28L are connected via connection members 30 and 31, and when the working body left 20L is folded, the connection of the connection members 30 and 31 is released and the first leveling plate left 26L and The second leveling plate left 28 </ b> L is separated from the outer end portion of the work machine main body 2, so that the joining with the first leveling plate 11 and the second leveling plate 12 is released.

  Next, the tilling depth display device 40 provided in the substitute working machine 1 will be described with reference to FIGS. 1 and 3. The plowing depth display device 40 is provided on the work machine body 2 and is movable in the vertical direction as the second leveling plate 12 rotates in the vertical direction, and as the link mechanism portion 41 moves. A plowing depth display unit 50 that displays the plowing depth is provided.

  The link mechanism portion 41 is a swing arm that is pivotably connected to the rear portion of the gear box 6 that is a part of the machine body 5 so that one end portion thereof is pivotally movable and the other end side extends rearward in the machine body traveling direction. 42, and a connecting rod 44 connected between the other end of the swing arm 42 and the upper surface of the second leveling plate 12. That is, the swing arm 42 is connected to the second leveling plate 12 via the connecting rod 44. One end of the swing arm 42 is pivotably connected to the rear portion of the gear box 6 with a shaft 43 extending in the lateral direction as a pivot. Both ends of the connecting rod 44 are rotatably connected to the swing arm 42 and the second leveling plate 12. For this reason, when the second leveling plate 12 rotates in the vertical direction, the swing arm 42 rotates in the vertical direction via the connecting rod 44 with the shaft portion 43 as the rotation fulcrum.

  The plowing depth display unit 50 is disposed above the gear box 6 and includes a display plate 51 on which numerals and characters indicating a plurality of different degrees of plowing depth are displayed with linear intervals, and a swing arm. One end portion is fixed to 42, and the other end side includes a pointer arm 55 that is movably supported along a plurality of numbers displayed on the display board 51.

  The display plate 51 is formed in a rectangular shape and extends in the front-rear direction above the gear box 6, and is formed in an arc shape having a radius r centering on a shaft portion 43 serving as a pivot point on the machine body side of the swing arm 42. ing. On the surface of the display board 51, there is provided a display section 51a on which letters and a plurality of numbers are written from the rear side to the front side. The display portion 51a is formed in an arc shape having substantially the same shape as a movement locus of a pointer 57 of a pointer arm 55 described later in a side view. In the present embodiment, the character “earthing” is written on the rear side of the display portion 51 a of the display board 51, the number “1” is written at a position in front of the character, and the character “1” is displayed. The numbers “2”, “3”, and “4” are written on the front side with a predetermined interval in the front-rear direction. On one side in the width direction of the numbers, letters “shallow” and “deep” are written with a predetermined interval in the front-rear direction. Further, on the other side in the width direction of the numbers, a plurality of scales are provided with lines L extending in the width direction with a predetermined interval in the front-rear direction. The display board 51 is provided in a state of being inclined toward the traveling machine body so that an operator who has boarded the traveling machine body 90 can easily visually recognize the numbers and the like written on the surface of the display board 51.

  The display plate 51 is provided on an upper portion of a support plate 59 fixed on the gear box 6. The support plate 59 is disposed along the right side of the pointer arm 55.

  The character “earthing” is a character indicating that the second leveling board 12 is in a posture capable of earthing (see FIG. 7). The numbers “1”, “2”, “3”, and “4” are characters indicating the degree of tilling depth, and the larger the number, the deeper the tilling depth. Further, the letters “shallow” and “depth” are letters indicating the degree of tilling depth, “shallow” means that the tilling depth is shallow, and “depth” means that the tilling depth is deep. What represents the degree of plowing is not limited to numbers and letters, but may be symbols or figures.

  The pointer arm 55 extends in the front-rear direction along one side (left side) in the width direction of the display plate 51, and its front end extends upward beyond the display plate 51. A pointer 57 is formed at the front end of the pointer arm 55 to point to characters or the like displayed on the display board 51. The pointer 57 is formed by bending the front end portion of the pointer arm 55, and the tip portion of the pointer 57 is formed in a convex shape. The pointer 57 is arranged at a predetermined distance from the surface of the display plate 51.

  The pointer 57 is a part of the pointer arm 55, and the pointer arm 55 is integrally attached to the swing arm 42. Further, the display portion 51 a of the display plate 51 is formed in an arc shape with the shaft portion 43 as the center. For this reason, when the swing arm 42 rotates about the shaft portion 43, the pointer 57 also moves in an arc shape in the front-rear direction about the shaft portion 43. For this reason, the pointer 57 moves in the front-rear direction while maintaining a predetermined distance from the surface of the display plate 51, and there is no possibility that the pointer 57 contacts the display plate 51.

  Next, the relationship between the numbers (1 to 4) indicated by the pointer 57 of the tilling depth display device 40 and the tilling depth D of the tilled soil by the tilling rotor 13 will be described with reference to FIGS. 4 and 5. As shown in FIG. 4, when the tilling depth D of the tillage by the tilling rotor 13 is shallow (D = about 100 mm in the drawing), the tilling depth display device 40 has an angle with respect to the field surface Ha. Inclined with θ (θ = about 44 ° in the drawing). As the first leveling plate 11 rotates, the second leveling plate 12 rotates with respect to the first leveling plate 11, and the second leveling plate 12 has an angle α (in the drawing, relative to the first leveling plate 11). α = about 136 °) and contact with the field surface Ha. Further, as the second leveling plate 12 rotates, the swing arm 42 rotates up and down via the connecting rod 44, and the pointer 57 indicates between “2” to “3”.

  On the other hand, when the plowing depth D is relatively deep (D = about 200 mm in the drawing), as shown in FIG. 5, the first leveling plate 11 is further upward than in the case of FIG. It rotates and tilts with an angle θ ′ (θ ′ = about 24 ° in the drawing) smaller than the angle θ with respect to the field surface Ha. As the first leveling plate 11 rotates, the second leveling plate 12 contacts the field surface Ha with an angle α ′ (α ′ = about 156 ° in the drawing) with respect to the first leveling plate 11. . Further, as the second leveling plate 12 rotates, the swing arm 42 rotates up and down via the connecting rod 44, and the pointer 57 indicates between “3” to “4”.

  Thus, in the tilling depth display device 40 of the present invention, the second leveling plate 12 rotates with respect to the first leveling plate 11 according to the depth of the tilling depth D, and the second leveling plate 12 rotates. Along with this, the swing arm 42 rotates in the vertical direction to move the pointer 57 in the front-rear direction. For this reason, the operator who boarded the traveling machine body 90 can know the exact tilling depth by visually confirming the number indicated by the pointer 57 of the tilling depth display unit 50 of the tilling depth display device 40. Therefore, when the pointer 57 is shifted to the larger number side (number 4 side) during the substitution work, the worker lifts the substitution work machine 1 through the three-point link coupling mechanism so that the working depth is shallow. For the operation. In addition, when the pointer 57 is shifted to a smaller number side (one side of the number) during the substitution work, the operator moves the substitution work machine 1 downward through the three-point link coupling mechanism so that the working depth is deep. Perform the operation to unload. Therefore, it is possible to make the tilling depth constant during the shaving operation.

  Next, the operation of the tilling depth display device 40 in the case where the earthwork work is performed by the shaving work machine 1 will be described with reference to FIGS. 6 and 7. When performing the earthing work, it is necessary to lock the rotation of the second leveling plate 12 with the second leveling plate 12 in a predetermined posture. For this reason, the proxy working machine 1 is provided with a lock device 61 that restricts the rotation of the second leveling plate 12.

  The locking device 61 has one end pivotably connected to the rear end of the swing arm 42 and the other end extending to the mast 7 side protruding from the gear box 6 to the front side. A hook 63 provided rotatably, a locking projection 64 provided at the upper end of the restriction arm 62 and locking the hook 63, and a hook 63 connected to the hook 63 and locked to the locking projection 64. And a part 65 of the operation lever for releasing the lock.

  FIG. 6 shows a state in which the extremely shallow tillage or shaving machine 1 is greatly lifted through the three-point link connecting mechanism of the traveling machine body. When performing the earthing work, when the part 65 of the operation lever shown in FIG. 6 is rotated leftward in the drawing (rearward side when viewed from the traveling direction), the hook 63 rotates around the rotation fulcrum O. As shown in FIG. 7, the locking projection 64 of the restriction arm 62 that is moved and is brought into contact with the end surface of the hook 63 and held down is moved rearward while sliding on the inner surface 63 a of the hook 63. As a result, the swing arm 42 is locked, and the rotation of the second leveling plate 12 in the front-rear direction with respect to the traveling direction is restricted.

  The state shown in FIG. 7 is the earthing state, and at this time, the pointer 57 moves to the left side (rear side when viewed from the traveling direction) in the figure to indicate “earthing” of the display board 51. In this state, when the trailer work machine 1 is lowered via the three-point link coupling mechanism of the traveling machine body 90 (see FIG. 2) and the traveling machine body 90 is moved forward, the first leveling plate 11 and the second leveling plate 12 are placed in the field. The soil can be moved in the traveling direction.

  As described above, when the second leveling plate 12 is positioned at a position where the second leveling plate 12 can perform the leveling operation, the plowing depth display device 40 causes the pointer 57 to display “the leveling” described on the display plate 51. Point to. For this reason, the worker who has boarded the traveling machine body 90 can check whether or not the earthing work is possible. Therefore, it is not necessary for the operator to get off the traveling machine body 90 and check the state of the second leveling plate 12, and the state checking operation of the second leveling plate 12 during the earthing work can be facilitated.

  In the above-described embodiment, the case where the display unit 51a of the display plate 51 is formed in an arc shape having substantially the same shape as the movement locus of the pointer 57 is shown, but the present invention is not limited to this. The display unit 51a of the display plate 51 is formed, for example, by bending a flat plate-like member at a predetermined interval in the front-rear direction so as to be formed in an overall arc shape in a side view, or below the movement locus of the pointer 57. It may extend linearly so as not to contact the pointer 57. Further, the pointer 57 may be disposed at an outer position having a predetermined distance from the end portion in the width direction of the display plate 51 so that the pointer 57 moves in the front-rear direction along the display plate 51.

  In the above-described embodiment, the scribing work machine 1 has a structure in which the work body left 20L and the work body right 20R can be folded with respect to the work machine main body 2. However, the work body left 20L and the work body right 20R are The lost work machine may be used.

1st Oyster Work Machine 5 Airframe 10 Shield Cover (Cover)
DESCRIPTION OF SYMBOLS 11 1st leveling board 12 2nd leveling board 13 Tillage rotor 40 Plowing depth display apparatus 41 Link mechanism part 42 Swing arm 43 Shaft part (movable fulcrum)
44 Connecting rod 50 Cutting depth display section 51 Display board 51a Display section 55 Pointer arm 57 Pointer

Claims (3)

A cover portion that covers an upper portion of a tillage rotor that is rotatably supported by the machine body, and a first leveling plate that is disposed at the rear portion of the cover portion so as to be pivotable in the vertical direction and cultivates the cultivated soil cultivated by the tillage rotor. And a tilling depth display device of a scissor working machine comprising a second leveling plate that is disposed at the rear portion of the first leveling plate so as to be pivotable in the vertical direction and level the cultivated soil surface,
One end of the swinging arm is pivotally provided on the airframe, the other end extends rearward in the direction of travel of the airframe, and can swing up and down, and the other end of the swinging arm and the second leveling plate A link mechanism having a connecting rod connected between the upper surface and rotating up and down as the second leveling plate rotates relative to the first leveling plate according to the tilling depth of the tilling rotor. When,
A display plate that is fixed to the machine body and displays a symbol indicating a plurality of different degrees of plowing depth, one end side is fixed to the swing arm, and the other end side is the display plate as the link mechanism portion rotates. and a stylus arm which moves along a display, and a tilling depth display unit for indicating the depth plowing with rotation of the linkage mechanism,
The display portion of the display board, puddling working machine tilling depth display device comprising that you have provided an arc shape around the rotation center of the swing arm. A pointer indicating the display on the display plate is provided at the tip of the pointer arm,
The pointer is movable in the front-rear direction as the swinging arm swings around a pivot point on the machine body side of the swinging arm,
The plowing work depth display device for a scissor work machine according to claim 1, wherein the display portion of the display board has substantially the same shape as a movement locus of the pointer in a side view. The display board is provided with an indication to the effect that the second leveling board is located at the earthing position where the earthing work can be performed by the second leveling board. The working depth display device of the shaving machine according to 2.

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