JP3749453B2 - Mower with felling movement mechanism - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mowing machine provided with a felled material moving mechanism that is attached to a tip portion of a power shovel car and moves the felled material cut by a blade.
[0002]
[Prior art]
A large amount of plants such as weeds are growing on a vast land such as a riverbed or a factory construction site, and it takes time to manually remove these plants, so they are removed together using a machine. .
On the other hand, the arm of the power shovel car is provided so as to be able to move up and down and turn, and at the tip of the arm, a container-like bucket capable of excavating and loading earth and sand, and the arm and the bucket are connected to expand and contract to expand the bucket. A tiltable bucket cylinder is provided. The bucket can be changed in the usage of work, and for example, a mowing machine provided with a rotary cutting blade and a cutting movement mechanism for moving the grass cut by the mowing machine to the arm can be attached to the arm.
[0003]
As shown in FIG. 4, a hydraulic motor-driven mower (hereinafter referred to as mower 70) capable of moving a felled tree disclosed in Registered Utility Model Publication No. 3049153 includes a tip of an arm 72 of a power shovel car and a bucket cylinder 73. A hydraulic motor 75 and a disk 78 having a blade 77 connected to the hydraulic motor 75 via a shaft 76 are attached to the housing 74 attached to the housing 74, and a curved strip iron plate is attached to the rear of the housing 74. 79 was provided. In addition, one end of a bracket 80 and a hydraulic cylinder 81 are attached to the vicinity of the tip of the arm 72, a curved strip iron plate 82 is rotatably attached to the bracket 80, and the other end of the hydraulic cylinder 81 is attached to the strip plate iron plate 82. It was installed. With such a configuration, the harvested material cut by the blade 77 of the circular plate 78 can be sandwiched between the strip steel plates 79 and 82 and loaded on a separately disposed truck or the like.
[0004]
[Problems to be solved by the invention]
However, since the conventional mower 70 has a structure in which the bracket 80 and the hydraulic cylinder 81 are attached to the arm 72, when replacing the normally used bucket with the mower 70, the arm mower 70 is attached to the tip of the arm 72 and the bucket cylinder 73. In addition, it is necessary to weld the bracket 80 to the arm 72 in advance, and to fix the other end of the hydraulic cylinder 81 and the strip plate iron plate 82 using bolts or the like, and it takes a lot of time for replacement work. . Moreover, since it was necessary to perform additional work, such as bracket 80, it was a useless expense.
The present invention has been made in view of such circumstances, and provides a mowing machine including a cutting unit that cuts grass and a cutting unit moving mechanism that can be attached and detached easily by integrally providing a cutting unit moving mechanism. With the goal.
[0005]
[Means for Solving the Problems]
The mowing machine provided with the felled material moving mechanism according to the present invention that meets the above-mentioned purpose is provided with two points of the base ceiling portion at the tip of the arm of the power shovel car and the tip of the bucket link provided on the arm. A main body frame that is movable and detachably connected, and can be tilted by expansion and contraction of a bucket cylinder, and is rotatably provided at the bottom of the main body frame and driven by a motor provided on the main body frame. A movable blade driven by a cylinder attached to the main body frame, and a rotating blade for cutting the main body frame, a fixed side member fixed to the rear side of the main body frame, and a base portion thereof rotatably attached to the main body frame And a felled product clamping means provided with a member.
Here, the bucket cylinder refers to a cylinder that is provided in advance at the tip of an arm of a power shovel car and tilts an attachment such as a bucket to be attached.
For example, hydraulic or electric motors and cylinders can be used.
In the mower, the rotary blade and the harvesting means are integrally attached to the main body frame, and the main body frame can be attached to and detached from the arm and bucket link of the power shovel car at two places. Labor and time can be shortened to reduce costs and work can be done easily. Also, when the mower is not in use, the members are not separated and can be housed together, thereby preventing parts from being lost.
Since the fixed side member is fixedly arranged and only the movable side member is moved, the structure of the apparatus can be simplified and the overall weight can be suppressed.
[0006]
Further, a felling material clamping means is provided on the arm side of the main body frame. With this configuration, the grass that has been cut can be scraped by the fixed side member while viewing from the driver's seat. Since this operation is the same as the operation when scraping the earth and sand with the claw portion formed on the normal bucket, the operability of the mower by the driver can be improved.
The motor and the cylinder may be hydraulically driven by being connected to a hydraulic power source of the power shovel car and operated from a driver seat of the power shovel car. Since the hydraulic power source of the power shovel is used as the drive source for the motor and cylinder, the weight of the mower can be reduced.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention.
As shown in FIG. 1 to FIG. 3, a mower 10 provided with a felled material moving mechanism according to an embodiment of the present invention includes a front end of an arm 12 of a power shovel car (not shown) and a bucket link provided on the arm 12. 34, the base ceiling portion 66 has two portions, which are pivotably and detachably connected to each other, and have a body frame 16 that can be tilted by expansion and contraction of the bucket cylinder 14. In a normal arrangement state, the main body frame 16 includes a top plate 23 at the top and a bottom plate 24 at the bottom, and the outer periphery of the top plate 23 and the bottom plate 24 is connected by a side plate 25. Further, the mower 10 is rotatably provided on a bottom plate 24 disposed at the bottom of the main body frame 16 and is driven by a hydraulic motor 38 which is an example of a motor provided on the main body frame 16 to rotate the harvested material. A blade 18, a fixed side member 19 fixed to a side portion of the main body frame 16, and a base portion thereof are rotatably attached to the main body frame 16, and a hydraulic cylinder 22 which is an example of a cylinder attached to the main body frame 16. And a felled product sandwiching means 67 provided with a movable side member 21 driven by. Note that the felled product moving mechanism refers to a felled product holding means 67 and a hydraulic pipe for connection (not shown) that connects the felled product holding means 67 and the hydraulic power source of the power shovel car. This will be described in detail below.
[0008]
First, the main body frame 16 will be described. The top plate 23 and the bottom plate 24 of the main body frame 16 are formed in a semicircular shape on the front side and a rectangular shape on the rear side, and the outer peripheries of the top plate 23 and the bottom plate 24 are connected by a bent side plate 25. That is, the outer shape of the main body frame 16 is formed in a semi-cylindrical shape on the front side and a rectangular shape on the rear side.
For example, an opening 26 is formed on the left side of the side plate 25, so that a tool or the like can be inserted into the main body frame 16 from the outside of the main body frame 16 to perform work. On the top of the top plate 23, front and rear connecting plates 27 and 27a are welded and fixed to both ends in the width direction. On the rear side of the connection plates 27 and 27a, the rotation support shafts 33 can be inserted, and rotation attachment holes 28 and 28a that are bridged and fixed are formed. Further, on the front side of the connection plates 27 and 27a, swing attachment holes 29 and 29a are formed, through which the swing support shaft 35 can be inserted, and spanned and fixed. The rotation attachment portion 13 includes a rotation support shaft 33, and the swing attachment portion 15 includes a swing support shaft 35. And the base side ceiling part 66 is comprised by the rotation attachment part 13, the rocking | fluctuation attachment part 15, and the connection plates 27 and 27a which support these.
[0009]
Here, the structure of the arm 12 of the power shovel car will be described. The power shovel car is a general-purpose product that is used in normal construction work, and includes a boom that can be rotated on the front side, and the arm 12 is rotatably provided on the front side of the boom. A base portion of the bucket cylinder 14 is rotatably provided on the tip side of the arm 12, and a rod tip portion 30 of the bucket cylinder 14 and a tip portion of the arm 12 are first link members 31 whose both end portions are rotatable. It is connected. A rotation insertion hole 32 is formed further ahead of the first link member 31 provided in the arm 12, and the rotation insertion hole 32 is disposed between the rotation mounting holes 28 and 28a and rotates. The support shaft 33 is inserted. In this way, the arm 12 and the main body frame 16 are rotatably connected.
[0010]
On the other hand, one end of a bucket link 34 is rotatably connected to the rod tip 30. Further, a swing insertion hole 36a is formed at the other end of the bucket link 34. The swing insertion hole 36a is disposed between the swing attachment holes 29 and 29a, and then the swing support shaft 35 is inserted. The In this way, the bucket link 34 and the main body frame 16 are connected so as to be swingable.
FIG. 1 shows a state where the rod of the bucket cylinder 14 is slightly extended. When the rod is retracted from this position, the position of the pivot mounting portion 13 does not change and the swing mounting portion 15 moves upward, and the main body frame 16 is tilted so that the rear side is lowered. On the other hand, when the rod is extended, the main body frame 16 is inclined so that the front side is lowered, and the operation of the rod causes the main body frame 16 to rotate about 100 degrees about the rotation support shaft 33. be able to.
[0011]
Next, the rotating shaft 17 and the rotating blade 18 provided in the main body frame 16 will be described. The rotary shaft 17 is vertically provided with an intermediate portion held by a bearing 36 provided on the bottom plate 24, and an upper end thereof is connected to a hydraulic motor 38, which is an example of a motor, via a joint 37. It can be rotated. The hydraulic motor 38 is fixed to the bottom plate 24 via a gantry 39.
Further, the lower end portion of the rotating shaft 17 is connected to a disc portion 41 having a connecting boss portion 40 at the center of the rotary blade 18. Further, as shown in FIG. 3, a blade attachment shaft 42 is provided around the disc portion 41 every 45 degrees.
The blade 43 formed in a triangular shape with a sharp outer edge is attached to the blade attachment shaft 42 at the base, and the blade 44 on the front side in the rotational direction of the side (the side that rotates and abuts the cut material). Is formed. The shape of the blade portion 44 is formed such that the front side in the rotation direction is recessed in an arc shape with respect to the traveling direction. With such a configuration, the contact distance of the blade portion 44 becomes longer and can be cut more easily.
[0012]
The disk part 41 is rotated at a speed of, for example, about 1000 rpm by the hydraulic motor 38, and each blade 43 has the blade part 44 outside the outer peripheral edge of the disk part 41 by centrifugal force as shown in FIG. It rotates in the state where it protruded, and the cutting material on the ground can be cut by this blade portion 44. When foreign matter is mixed in the cut material, the blade 43 can rotate away from the foreign matter by rotating in the direction opposite to the rotation direction of the disc portion 41, and thus the blade portion 44 is prevented from being lost. be able to.
A skirt portion 69 is provided between the bottom plate 24 and the disc portion 41 to prevent the cut material from being entangled with the rotating shaft 17.
The rotary blade 18 includes a disk portion 41, a connecting boss portion 40, a blade attachment shaft 42, and a blade 43.
[0013]
As shown in FIG. 1 to FIG. 3, the rear half of the rotary blade 18 is substantially concentrically arranged radially outward from the outer peripheral edge of the rotary blade 18, and is cut by the rotary blade 18 and radially outward. Arc-shaped scattering prevention covers 45 to 47 are provided in plan view in which the felled trees collide and fall downward are provided. The front ends of the anti-scattering covers 45 and 47 are connected to both sides of the side plate 25 via triangular holding plates 48 and 49, respectively.
Here, the plurality of sandwiching plates 57 to 60 that are formed in a plate shape and are arranged in parallel to the rear side (arm 12 side) of the main body frame 16 and constitute the fixed side member 19 will be described. The sandwiching plates 57 to 60 are formed to gradually widen toward the lower side. The front portions of the sandwiching plates 57, 60 are fixed in parallel to the rear corners of the main body frame 16, and the sandwiching plates 58, 59 are disposed in parallel therebetween. Further, the sandwiching plates 58 and 59 are formed in a shape obtained by removing the upper half of the sandwiching plates 57 and 60, and the rear end 68 formed in the curved shape of the sandwiching plates 57 to 60 is superposed when viewed from the side. Are arranged as follows.
Further, lower portions of the sandwiching plates 57 and 60 are connected to rear end portions of the anti-scattering covers 45 and 47.
A scattering prevention cover 46 is disposed between the sandwiching plates 57 and 60 with a slight gap, and sandwiching plates 58 and 59 are connected to both ends of the scattering prevention cover 46.
In addition, although the width of the gap between the sandwiching plates 57 and 58 and the width of the gap between the sandwiching plates 59 and 60 are each formed to be about 20 to 50 cm, depending on the length and entanglement of the felled material, It may be smaller or larger as long as it is easy to hold.
[0014]
Next, the movable side member 21 that is rotatably provided on the main body frame 16 via the rotation shaft 20 will be described. The rotating shaft 20 has two shafts whose axial centers are arranged on both sides and whose both ends are welded and fixed between the sandwiching plates 57 and 60 at the rear side of the lower portion of the top plate 23. It is supported by holding plates 62 and 63.
The movable-side member 21 is a large-diameter pipe that is arranged in parallel to the cylindrical member 52 below the rotary shaft 20 and connected to the cylindrical member 52 by connection plates 64 and 65. The base part is fixed to both ends of the member 53 and the large-diameter pipe member 53, and the tip part can be inserted into the gap between the holding plates 57 and 58 and the gap between the holding plates 59 and 60, respectively. Claw portions 54 and 55. The front ends of the clamping claws 54 and 55 are formed in a sharp shape, and the respective tips are slightly bent forward. The intermediate portions of the clamping claws 54 and 55 on both sides are connected by a reinforcing plate 56 that is slightly inclined to the rear side.
[0015]
Next, the hydraulic cylinder 22 that drives the movable member 21 will be described. The hydraulic cylinder 22 is pivotally attached to the front side of the lower portion of the top plate 23 at the base end, and the tip end of the rod rotates around the connection plates 64 and 65 of the movable side member 21 via the rotation connection shaft 61. Mounted movably. At this time, the base end portion of the hydraulic cylinder 22 is disposed immediately above the hydraulic motor 38. The hydraulic cylinder 22 can be provided avoiding the position above the hydraulic motor 38. In this case, the height of the mower can be further reduced, and the mower can be formed to be light and compact.
The clamping claws 54 and 55 can be rotated around the rotation shaft 20, and the tip portions of the clamping claws 54 and 55 and the reinforcing plate 56 move forward while scraping off the harvested material. A felled product can be pinched between 57-60. Further, the tip portions of the clamping claws 54, 55 are formed and arranged in a comb-like shape that fits into the gap between the clamping plates 57, 58 and the gap between the clamping plates 59, 60. The lower part of the felled tree can be firmly held to prevent the lifted felled tree from falling. Moreover, since it is a mechanism which moves to a horizontal direction on each surface of the clamping plates 57-60 and the clamping claw parts 54 and 55, and holds a felled material, it is a plate shape used compared with the system which moves by clamping between two surfaces. By reducing the area of the material, the entire device can be reduced in weight.
[0016]
The hydraulic motor 38 and the hydraulic cylinder 22 can be hydraulically driven by being connected to a hydraulic source (not shown) of the power shovel car, and can be operated from the driver's seat of the power shovel car.
The rotary shaft 17, the rotary blade 18, the fixed side member 19, the movable side member 21, and the hydraulic cylinder 22 are integrally attached to the main body frame 16. In this state, the main body frame 16 is configured to be attachable to and detachable from the arm 12 via the rotation attachment portion 13 and the swing attachment portion 15.
[0017]
The weight of a normal bucket used in a power shovel is, for example, about 180 kg to 200 kg, but the weight when earth and sand are loaded on this is 500 kg or more. The weight of the mower 10 is, for example, about 240 kg, but the harvested product is light and has a small load applied in addition to its own weight. Therefore, the mower 10 provided with the felled product moving mechanism can be used without any problem.
Then, the usage procedure of the mower 10 is demonstrated.
(Preparation process)
The mower 10 is stored in a warehouse together with connection piping. When attaching the mower 10, first, a bucket (not shown) attached to the power shovel car is removed from the tip of the arm 12 and the tip of the bucket link 34.
(Installation process)
Next, the main body frame 16 of the mower 10 is attached to the arm 12 and the bucket link 34 via the rotation attachment portion 13 and the swing attachment portion 15, and the hydraulic cylinder 22, the hydraulic motor 38, and the power shovel car are connected by hydraulic piping. .
[0018]
(Felling process)
By operating the power shovel, the rotary blade 18 is arranged substantially in parallel with the ground, and the hydraulic motor 38 is driven to cut the harvested material such as weeds within a predetermined range.
(Integration process)
After the hydraulic motor 38 is stopped, the bucket cylinder 14 is operated to scrape the harvested cuts that have been scattered on the ground at the lower end of the fixed side member 19, and the hydraulic cylinder 22 is operated at any time to move the movable side member. The harvested material is sandwiched between 21 and the fixed-side member 19 and accumulated at a predetermined location, or loaded on a truck and transported. In addition, this process can also be implemented while performing the logging process.
As mentioned above, although embodiment which concerns on this invention has been described, this invention is not limited to the said embodiment, For example, it increases the number of a clamping board and a clamping nail | claw part, and the holding | grip of a felled tree is ensured. Can be made.
[0019]
【The invention's effect】
In the mowing machine provided with the felling material moving mechanism according to claim 1 and 2, since it can be attached and detached at only two places on the base ceiling part at the tip of the power shovel car and the bucket link, Time can be reduced to reduce costs and work can be done easily. Furthermore, since the movable side member and the cylinder are integrally provided on the main body frame, it is not necessary to check the operation and adjust the rotational position each time the mower is installed, and it can be used immediately after installation. it can. Also, when the mower is not in use, the members are not separated and can be housed together, thereby preventing parts from being lost.
And since only a movable side member is moved, the structure of an apparatus can be simplified and the whole weight can be restrained.
In addition, since the means for pinching the harvested material is provided on the arm side of the main body frame, the cut grass can be scraped to the driver's seat with the fixed member, and the mower is operated by the driver from the driver's seat of the power shovel car. Can improve sex.
And in the mowing machine provided with the felling movement mechanism according to claim 2, since the motor and the cylinder are connected to the hydraulic power source of the power shovel car and hydraulically driven, it is not necessary to provide a separate driving source for the mower, and the weight Can be reduced.
[Brief description of the drawings]
FIG. 1 is a side sectional view of a mowing machine provided with a felled material moving mechanism according to an embodiment of the present invention.
FIG. 2 is a partially cutaway front view of a mowing machine provided with the felled product moving mechanism.
FIG. 3 is a bottom view of a mowing machine provided with the felled product moving mechanism.
FIG. 4 is a side sectional view of a mowing machine according to a conventional example.
[Explanation of symbols]
10: Mowing machine, 12: Arm, 13: Rotation mounting portion, 14: Bucket cylinder, 15: Swing mounting portion, 16: Main body frame, 17: Rotating shaft, 18: Rotary blade, 19: Fixed side member, 20: Rotating shaft, 21: movable side member, 22: hydraulic cylinder (cylinder), 23: top plate, 24: bottom plate, 25: side plate, 26: opening, 27, 27a: connecting plate, 28, 28a: rotational mounting Holes 29, 29a: swing mounting holes, 30: rod tip, 31: first link member, 32: rotation insertion hole, 33: rotation support shaft, 34: bucket link, 35: swing support shaft, 36: bearing, 36a: swing insertion hole, 37: joint, 38: hydraulic motor (motor), 39: mount, 40: connecting boss, 41: disc part, 42: cutter mounting shaft, 43: cutter, 44: blade part, 45-47: scattering prevention cover, 48, 4 : Holding plate, 52: cylindrical member, 53: large-diameter pipe member, 54, 55: clamping claws, 56: reinforcing plate, 57-60: clamping plate, 61: rotating connection shaft, 62, 63: shaft holding Board, 64, 65: Connection board, 66: Base side ceiling part, 67: Cutting material clamping means, 68: Rear side end, 69: Skirt part

Claims (2)

Two portions of the base ceiling portion are pivotably and detachably connected to the tip portion of the arm of the power shovel car and the tip portion of the bucket link provided on the arm, and can be tilted by expansion and contraction of the bucket cylinder. Body frame,
A rotary blade that is rotatably provided at the bottom of the main body frame and is driven by a motor provided in the main body frame to reap the harvested material;
A fixed side member fixed to the rear side of the main body frame, and a felled product including a movable side member that is rotatably attached to the main body frame and driven by a cylinder attached to the main body frame. Holding means,
The mowing machine provided with a felled product moving mechanism, wherein the felled product clamping means is provided on the arm side of the main body frame.   2. The mower equipped with the cutting material moving mechanism according to claim 1, wherein the motor and the cylinder are connected to a hydraulic power source of the power shovel car and are hydraulically driven, and can be operated from a driver seat of the power shovel car. A mowing machine equipped with a felling movement mechanism characterized by

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