JP6626532B2 - Mower - Google Patents

Description

  The present invention relates to a mower that can be attached to and detached from an arm of a construction machine.

A mowing machine that can be attached to and detached from an arm of a hydraulic shovel is disclosed in Patent Document 1 below.
JP-A-2005-8702

  As shown in FIG. 7, the mowing machine 13 can be replaced with a standard-equipped work tool (bucket) or another optional work tool (specifically, for example, a crusher or a gripper) as a hydraulic machine. It is attached to and detached from the arm 12 of the shovel.

  The hydraulic excavator is a mini excavator having a mechanical mass of less than 6 tons, a crawler-type lower traveling body 1, an upper revolving body 2 provided on the lower traveling body 1 via a revolving wheel 10, and an upper revolving body 2. An articulated working device 4 connected to the front side of the body 2 via a swing post 3 is provided.

  In the undercarriage 1, a driving wheel 6 and a driven wheel (idler) 7 are rotatably supported by a track frame 5, and a crawler (crawler) 8 is wound around the driving wheel 6 and the driven wheel 7.

  On the front side of the track frame 5, a blade 9 for discharging the earth is provided so as to be vertically movable.

  The working device 4 includes a boom 11, an arm 12, a boom hydraulic cylinder 14, an arm hydraulic cylinder 15, and a work implement hydraulic cylinder 16 connected to the swing post 3 so as to be rotatable in the vertical direction. And a mower 13 that is connected to be rotatable up and down.

  As shown in FIG. 8, the mowing machine 13 has a rotating drum 27 as a rotating body in which a plurality of mowing blades (hammer knives) 26 are arranged on the outer peripheral side, and rotatably supports and stores the rotating drum 27. A casing body 28, a mowing motor (rotating device) attached to the outside of the casing body 28 to rotate the rotary drum 27, and a mounting bracket 29 for attaching a heavy machine attached to an upper portion of the casing body 28; The casing body 28 includes a substantially half cylindrical body 30 and side plates 31 joined to both ends of the cylindrical body 30.

  Above the tubular body 30 of the casing body 28, a cylinder for rotatably engaging the mounting bracket 29 and a fixing mechanism (not shown) for fixing the rotational position of the mounting bracket 29 are provided.

  A bracket 29 for attachment to the heavy equipment is rotatably connected to the arm 12 and is also connected to the hydraulic cylinder 16 for working tools via a link mechanism.

  An opening 34A is formed on one side of the rotating direction of the rotating drum 27 in the casing body 28, and an opening 34B is formed on the opposite side of the rotating direction.

Patent Literature 2 listed below discloses a mower including a rake grapple as described above. The rake grapple has a plurality of fixed comb blades, a plurality of movable comb blades rotatably connected to an intermediate portion of the fixed comb blades, and a hydraulic cylinder for rotating the movable comb blades. In addition, in patent document 2, it is a multifunctional heavy machine which can also cut a tall tree other than demining, shrub cutting, cultivation, etc. which have a rotary cutter, and is not a thing only for a mowing machine.
JP-A-2004-183322

  In Patent Document 2, the remaining root of the tree Y can be dug up by the fixed blade of the rake grapple. The root of the excavated tree Y and the first cut portion can be gripped with a rake grapple and transported to a predetermined location.

  In Patent Document 2, the fixed comb blade of the rake grapple is interposed between the tip of the second arm and the rotary cutter. The second arm is connected to the vehicle body so as to be rotatable about a first horizontal rotation axis. A second rotation axis parallel to the first rotation axis is provided at the distal end of the first arm. The multifunction heavy machine including the rotary cutter is rotatably connected to a distal end of the second arm about a third rotation axis parallel to the first rotation axis. You.

  There is a hydraulically actuated rotary actuator as a oscillating means, the base of the fixed comb blade of the rake grapple is connected to the output shaft of the rotary actuator, and the rotary cutter is fixed below the base of the fixed comb blade. The blade portion of the fixed comb blade and the movable comb blade of the rake grapple are arranged in front of the rotary cutter.

  In Patent Document 2, the remaining root of the tree Y can be dug by a fixed blade of a rake grapple. The root of the excavated tree Y and the first cut portion can be gripped with a rake grapple and transported to a predetermined location.

  Also, since the fixed comb blade of the rake grapple is interposed between the tip of the second arm and the rotary cutter, the fixed comb blade of the rake grapple is connected to the second arm without the rotary cutter. Therefore, the fixed comb blade can be made large, and it is possible to grasp a large amount of felled trees and shrubs at a time, or to carry a tree with a large diameter.

  Further, the oscillating means comprises a hydraulically driven rotary actuator, and a base of a fixed comb blade of the rake grapple is connected to an output shaft of the rotary actuator, and a rotary cutter is fixed below the base of the fixed comb blade. .

  As described above, although the rake grapple is provided in Patent Document 2, it cannot be said that the rake grapple is provided independently on the rotary cutter (mowing machine). Comb blades and hydraulic cylinders must be separated and removed.

  SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned disadvantages of the prior art, which is detachable from an arm of a construction machine, and has a rotating drum having a mowing blade, and a casing body which rotatably supports and stores the rotating drum. Provided is a mowing machine which can be easily removed without disassembling each part when a rake grapple is provided in the mowing machine, and which can be independently and stably mounted on the mowing machine when installed. Is to do.

In order to achieve the above object, the present invention according to claim 1, which is detachable from an arm of a construction machine, comprises a rotary drum having a mowing blade, and a casing body that rotatably supports and stores the rotary drum. In the mowing machine, a bracket is provided on one side of a casing body, and a fixed comb blade, a movable comb blade, and a hydraulic cylinder for moving the movable comb blade are provided on a base having left and right side plates, and are integrated with each other. The gist is that the bracket is detachably provided on a bracket of the body with a detachable bolt.

  According to the first aspect of the present invention, by providing the rake grapple on one side of the casing, a tree or the like that could not be processed by the mowing blade of the rotating drum can be dug up with the rake grapple. In the case of a rake grapple, it is also possible to grab the excavated tree stock and carry it to a predetermined place.

  Furthermore, the rake grapple can be attached as needed as a detachable one, and if not necessary, it can be attached without being in the way.

  In addition, the rake grapple consisting of the fixed comb blade, the movable comb blade, and the hydraulic cylinder that moves the movable comb blade can be integrated and attached to the bracket of the casing body with detachable bolts. It can be carried out.

  According to a second aspect of the present invention, in the casing body, the front frame and the rear frame are arranged on the left and right, the front frame and the rear frame are arranged with the spine frame facing upward, and the horizontal frames are arranged on the lower left and right sides of the casing body. The backbone frame is provided with a mounting bracket for heavy equipment, this mounting bracket is also fixed to the front frame, and a rake grapple is provided on one side of the casing body where the front frame is located. It is a summary.

  According to the second aspect of the present invention, the rake or rake grapple can be firmly supported by the mounting bracket through both the spine frame and the front frame in the vicinity of the mounting bracket, and the operation of the arm of the heavy equipment can be reliably performed. The rake or rake grapple for excavating the rake can be easily transmitted to the rake.

As described above, a mower according to the present invention is detachable from an arm of a construction machine, and includes a rotary drum having a mowing blade, and a casing body that rotatably supports and stores the rotary drum. smell Te, in the case of providing a rake grapple, which can be removed easily without disassembling the respective units, yet when attached are those that can be attached alone and stably the mowing machine.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view showing an embodiment of a mowing machine according to the present invention. As shown in FIG. 6, the mowing machine 13 rotates as a rotating body having a plurality of mowing blades (hammer knives) 26 arranged on the outer peripheral side. It includes a drum 27, a mowing motor (rotating device) 17 attached to the outside of the casing body 28 to rotate the rotary drum 27, and a bracket 29 for attaching a heavy machine attached to an upper portion of the casing body 28.

  In the present invention, a rake grapple 44 including a fixed comb blade 45, a movable comb blade 46, and a hydraulic cylinder 47 for moving the movable comb blade 46 is detachably provided on one side of the casing body 28 as one type of rake.

  The fixed comb blade 45 is located on the lower side, and the movable comb blade 46 rotates so as to cover the fixed comb blade 45 so that lumber or the like can be sandwiched therebetween.

  The rotation of the movable comb blade 46 is performed via a lever 48 rotated by a hydraulic cylinder 47.

  The fixed comb blade 45, the movable comb blade 46, and the hydraulic cylinder 47 are provided on a base 49 having left and right side plates, and are integrated.

  The rake grapple 44 is detachably attached to a bracket 50 provided on the casing body 28 together with the base 49 by a detachable shaft 51. The detachable shaft 51 is a shaft for attaching and detaching the rake grapple 44 to and from the bracket 50 together with the base 49, and is fixed by bolts and nuts.

  The mowing machine 13 itself can be replaced with a standard-equipped work tool (bucket) or another optional work tool (specifically, for example, a crusher or a gripper) as in the above-described conventional example. It is attached to and detached from the arm 12.

  The hydraulic excavator is a mini excavator having a mechanical mass of less than 6 tons, a crawler-type lower traveling body 1, an upper revolving body 2 provided on the lower traveling body 1 via a revolving wheel 10, and an upper revolving body 2. An articulated working device 4 connected to the front side of the body 2 via a swing post 3 is provided. (See Fig. 7)

  The undercarriage 1 has a track frame 5 in which a driving wheel 6 and a driven wheel (idler) 7 are rotatably supported, and a crawler track (crawler) 8 is wrapped around the driving wheel 6 and the driven wheel 7. On the front side, a blade 9 for discharging the earth is provided so as to be vertically movable.

  The working device 4 includes a boom 11, an arm 12, a boom hydraulic cylinder 14, an arm hydraulic cylinder 15, and a work implement hydraulic cylinder 16 connected to the swing post 3 so as to be rotatable in the vertical direction. And a mower 13 that is connected to be rotatable up and down.

  As shown in FIG. 8 as the conventional example, the mowing machine 13 of the present invention includes a rotating drum 27 as a rotating body having a plurality of mowing blades (hammer knives) 26 arranged on the outer peripheral side, and a casing body 28. A mowing motor (rotating device) 17 mounted on the outside of the housing for rotating the rotary drum 27; and a mounting bracket 29 for mounting heavy machinery mounted on the upper part of the casing body. In the figure, reference numeral 33 denotes a bearing of the rotary drum 27.

  The blade 26b of the mowing blade (hammer knife) 26 is a plate having a curved tip blade, and the two blades 26b are attached to a mounting bracket spirally provided on the peripheral surface of the rotary drum 27 so that the tip blades are mutually connected. The root portion is attached with a bolt so as to open outward, and the blade 26b can rotate about the bolt.

  The casing body 28 has a light weight with a frame and a face plate. The frame is composed of a front frame, a rear frame, and a spine frame 20 located on the left and right when viewed from the front of the casing body 28 (see FIG. 1). And the face plate 22 is stretched inside thereof.

  The spine frame 20 and the horizontal frame 21 are beam-shaped, and the front frame and the rear frame are a combination of a housing-shaped frame and a horizontal beam.

  The face plate 22 constitutes a cylindrical body, and has a lower surface opened to form an opening 23 in a lower surface of the casing body 28, and surrounds the periphery of the rotary drum 27 so as to cover the lower side, and The casing body 28 was bent so as to be an octagonal body.

  The octagonal corners are bilaterally symmetrical, with A refracting at the lower end of the spine frame 20, B refracting at the lower end of the lower slope, C refracting at the lower end of the vertical descending plate, and The lower end of the vertical descending plate portion is bent inward, and four D's formed at the tip end are arranged.

  The outside connecting the corners C and D is formed as a reinforcing rib 32 of a hollow truss.

  The mounting bracket 29 is provided on the spine frame 20, and the mounting bracket 29 is also fixed to the front frame. In this way, the mounting bracket 29 is provided on one side of the casing body 28, close to the side where the front frame is located.

  The mounting bracket 29 is rotatably connected to the arm 12 and is connected to the work implement hydraulic cylinder 16 via a link mechanism.

  A good rubber-like droop 35 from one side of the horizontal frame 21 of the casing body 28 hangs down, thereby covering the outside of the opening 23 on the lower surface of the casing body 28. The lower end of the rubber hang 35 is located below the opening 23.

  The rake grapple 44 is detachably provided on one side of the casing body 28, but is provided on one side of the casing body 28 where the front frame is located.

  Next, the usage will be described. The mowing motor 17 rotates in one direction, and the rotating drum 27 also rotates in one direction.

  When the opening 23 on the lower surface of the casing body 28 is brought as close as possible to the ground surface, the grass growing on the ground is taken into the casing body 28 from the opening 23, cut by the grass cutting blade 26, and the cut grass is removed. Will be released.

  At this time, since the casing body 28 also surrounds the periphery of the rotary drum 27, large grass cut by the grass cutting blade 26 can be turned inside the casing body 28 together with the grass cutting blade 26, and cut by the grass cutting blade. The cut grass collides with the corners of the octagonal body when turning in the casing, spreads, is broken again by the mowing blades, and becomes finer and falls down after being repeated several times.

  The mower 13 can be moved by extending the arm 12 and the hydraulic cylinder 16 for the work implement, and the arm 12 and the hydraulic cylinder 16 for the implement can change the angle of the mower 13 to cope with a slope or the like.

  When the rake grapple 44 is used, the casing body 28 is used so as to stand upright. However, the mounting bracket 29 is provided on one side of the casing body 28 toward the side where the front frame 18 is located, so that it operates in a stable state. Can be done.

  Further, in the case of the rake grapple 44, a stubbed tree or the like can be gripped by the fixed comb blade 45 and the movable comb blade 46 and transported to a predetermined location.

It is a front view showing one embodiment of a mower of the present invention. It is a side view showing one embodiment of a mower of the present invention. It is a longitudinal section front view of an important section showing a 1st embodiment of a mower of the present invention. It is a front view showing the state of removal of a rake grapple showing one embodiment of a mower of the present invention. It is a top view showing the state of removal of a rake grapple showing one embodiment of a mower of the present invention. It is a longitudinal section side view showing one embodiment of a mower of the present invention. It is a side view showing the structure of the hydraulic excavator to which the conventional mower was attached. It is the side view which partially cut away and shows the prior art example.

DESCRIPTION OF SYMBOLS 1 ... Lower traveling body 2 ... Upper revolving superstructure 3 ... Swing post 4 ... Working device 5 ... Truck frame 6 ... Drive wheel 7 ... Follower wheel (idler) 8 ... Crawler track (crawler)
9 ... Blade 10 ... Revolving wheel 11 ... Boom 12 ... Arm 13 ... Mowing machine 14 ... Hydraulic cylinder for boom 15 ... Hydraulic cylinder for arm 16 ... Hydraulic cylinder for work implement 20 ... Spine frame 21 ... Horizontal frame 22 ... Face plate 23 ... Opening 24 rake 26 mowing blade 26a mounting bracket 26b blade 26c bolt 27 rotating drum 28 casing body 29 mounting bracket 30 cylindrical body 31 side plate 32 reinforcing rib 33 bearing 34A opening 34B Opening 35: Rubber dripping 37 ... Rubber dripping 44 ... Rake grapple 45 ... Fixed comb blade 46 ... Movable comb blade 47 ... Hydraulic cylinder 48 ... Lever 49 ... Base 50 ... Bracket 51 ... Removable bolt

Claims (2)

A mower having a rotating drum having a mowing blade and a casing body for rotatably supporting and storing the rotatable drum, the bracket being provided on one side of the casing body and fixed to the arm of the construction machine. The comb blade, the movable comb blade, and the hydraulic cylinder for moving the movable comb blade are provided integrally on a base having left and right side plates, and the base and the base are removably mounted on a bracket of the casing body with mounting bolts. And a mower. The casing body has a front frame and a rear frame arranged on the left and right, the front frame and the rear frame are arranged with the spine frame on top, horizontal frames are arranged on the lower left and right sides, and they are connected to each other, with a face plate, 2. A mowing machine according to claim 1, wherein a mounting bracket for attaching to the heavy machine is provided, and the mounting bracket is also fixed to the front frame, and a rake grapple is provided on one side of the casing body where the front frame is located.