JP2018164417A - Mower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mower that is attached to or detached from an arm of a construction machine, and has a rotating drum having a mowing blade, and a casing body supporting the rotating drum rotatably and storing it, wherein, when a rake or a rake grapple is provided in the mower, each member can be easily detached without disassembly, and when attached, they can be attached separately and stably to the mower.SOLUTION: On one side of a casing body 28 provided is a rake 24 so that it can be detached and changed in angle, or, on one side of the casing body provided is a rake grapple including a stationary comb blade, a movable comb blade and a hydraulic cylinder for moving the movable comb blade, as integral parts, in a detachable manner.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a mower detachable from an arm of a construction machine.

As a mower that can be attached to and detached from an arm of a hydraulic excavator, there is one shown in Patent Document 1 below.
Japanese Patent Laid-Open No. 2015-8702

  As shown in FIG. 18, the mower 13 is hydraulic so that it can be replaced with a standard work tool (bucket) or other optional work tool (specifically, for example, a crusher or a gripper). It is attached to and detached from the arm 12 of the shovel.

  The hydraulic excavator is a mini excavator with 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 through a swirling wheel 10 so as to be capable of swiveling, and the upper swiveling body. An articulated working device 4 connected to the front side of the body 2 via a swing post 3 is provided.

  In the lower traveling body 1, a driving wheel 6 and a driven wheel (idler) 7 are rotatably supported on a track frame 5, and a crawler belt 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 earth removal is provided so as to be movable up and down.

  The work 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 that are connected to the swing post 3 so as to be pivotable in the vertical direction. Are provided with a mower 13 that is pivotably connected in the vertical direction.

  As shown in FIG. 19, the mower 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) that is attached to the outside of the casing body 28 to rotate the rotating drum 27, and a mounting bracket 29 for a heavy machine attached to the upper portion of the casing body 28, The casing body 28 is configured by a substantially half cylindrical body 30 and side plates 31 joined to both ends of the cylindrical body 30.

  A cylindrical body that rotatably engages the mounting bracket 29 and a fixing mechanism (not shown) that fixes the rotational position of the mounting bracket 29 are provided on the upper portion of the cylindrical body 30 of the casing body 28.

  The bracket 29 for attachment to the heavy machine is rotatably connected to the arm 12 and is connected to the working tool hydraulic cylinder 16 via a link mechanism.

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

Japanese Patent Application Laid-Open Publication No. 2004-228561 discloses a grass mower having the above-described rake grapple. 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 that rotates the movable comb blades. In addition, in patent document 2, it is a multifunctional heavy machine which can also cut a high tree besides landmine removal which has a rotary cutter, shrub cutting, cultivation, etc., and is not for exclusive use of a mower.
JP 2004-183322 A

  In Patent Document 2, the remaining root of the tree Y can be dug up by a fixed blade of a rake grapple. The root of the excavated tree Y and the first cut-down portion can be grasped with a rake grapple and carried to a predetermined place.

  In Patent Document 2, a fixed comb blade of a rake grapple is interposed between the tip of the second arm and the rotary cutter. The second arm is centered on a second rotation axis parallel to the first rotation axis at the tip of the first arm connected to the vehicle body so as to be rotatable about a horizontal first rotation axis. The multi-function heavy machine including the rotary cutter is connected to the tip of the second arm so as to be rotatable about a third rotation axis parallel to the first rotation axis. The

  There is a hydraulically driven rotary actuator as the swinging means, and 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 under the base of the fixed comb blade, from the driver's seat The blade portion of the fixed comb blade of the rake grapple and the movable comb blade are arranged in front of the rotary cutter.

  According to Patent Document 2, the remaining root of the tree Y can be dug up by a fixed blade of a rake grapple. The root of the excavated tree Y and the first cut-down portion can be grasped with a rake grapple and carried to a predetermined place.

  Further, 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 using the rotary cutter. Therefore, the fixed comb blade can be made large, and a large amount of felled trees and shrubs can be grasped at once, or a tree having a large diameter can be grasped and carried.

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

  As described above, in Patent Document 2, although a rake grapple is provided, it cannot be said that the rake grapple is provided alone. Also, in order to remove the rake grapple, the swinging means is removed, and a fixed comb blade or a movable comb blade is movable. The comb blade and hydraulic cylinder must be separated and removed.

  An object of the present invention is to eliminate the disadvantages of the conventional example described above and to be detachable from an arm of a construction machine, having a rotary drum having a grass cutting blade, and a casing body for rotatably supporting and storing the rotary drum. When a rake or rake grapple is provided in a mower, it can be easily removed without disassembling each part, and when attached, it can be attached to the mower alone and stably. Is to provide.

  In order to achieve the above object, the present invention according to claim 1 or claim 4 is detachable from an arm of a construction machine, and includes a rotary drum having a mowing blade, a rotary drum rotatably supported and stored. In a mower having a casing body, a bracket is provided on one side of the casing body, and a rake is provided on the bracket such that the rake is detachable and the angle can be changed, or hydraulic pressure that moves the fixed comb blade, the movable comb blade, and the movable comb blade. The gist of the present invention is to detachably attach a rake grapple made of a cylinder as a unit.

  According to the present invention of claim 1 or claim 4, by providing a rake or rake grapple on one side of the casing, a tree stock that could not be treated with the mowing blade of the rotating drum is dug up by this rake or rake grapple. be able to. In the case of a rake grapple, it is also possible to grab a tree stock that has been dug up and carry it to a predetermined location.

  In addition, the rake or rake grapple can be attached as required to be removable, and if it is not needed, it can be removed and not disturbed.

  According to the second aspect of the present invention, the rake has a comb-blade shape, and a root portion of the rake is axially attached, and one of a plurality of blind holes formed along the arc edge as a fan shape is selected. The support plate which latches the middle part of this is provided, and it makes it a summary to attach the side end of this support plate to the bracket of a casing body with a detachable bolt.

  According to the second aspect of the present invention, the rake has a comb blade shape, and the vicinity of the collar portion, which is the root of the rake, is pivotally attached to the support plate (bracket) provided in the casing body with a pipe, and the support plate ( The bracket can be changed in angle by selecting one of a plurality of blind holes formed along the arc edge as a fan shape and hooking the middle part of the rake with a bolt.

  The gist of the present invention described in claim 3 is that the bracket of the casing body has a rake root portion bearing.

  According to the third aspect of the present invention, when the rake is provided so as to be detachable and changeable in angle, the bearing for changing the angle can be formed by the bracket of the casing body, and stable rotation can be obtained.

  The gist of the present invention described in claim 5 is that the rake grapple is attached to the bracket of the casing body with a detachable bolt.

  According to the fifth aspect of the present invention, the rake grapple comprising the fixed comb blade, the movable comb blade, and the hydraulic cylinder for moving the movable comb blade can be integrally attached to the bracket of the casing body with the detachable bolt, and the rake grapple is unnecessary. It can be easily performed as a unit even when it is removed with the.

  In the present invention according to claim 6, the casing body has a front frame and a rear frame on the left and right sides, and these are connected with horizontal frames on the lower and left and right sides, and a face plate. The gist is to provide a mounting bracket for heavy equipment, this mounting bracket is also fixed to the front frame, and a rake or rake grapple is provided on the side of the casing body on the side where the front frame is located.

  According to the sixth aspect of the present invention, the rake or the 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 machine is ensured. The rake or rake grapple work can be easily performed by communicating to the rake and performing digging work.

  As described above, the mower of the present invention can be attached to and detached from the arm of the construction machine, and includes a rotary drum having a mowing blade and a casing body that rotatably supports and stores the rotary drum. When a rake or rake grapple is provided, each part can be easily removed without disassembling, and when attached, it can be attached to the mower alone and stably.

  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 mower according to the present invention, FIG. 2 is an enlarged front view of the main part of the same, FIG. 3 is a front view showing a state of removal of the same, and FIG. 4 is a state of removal of the same. It is a top view.

  As shown in FIGS. 10 and 11, the mower 13 rotates on 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 on the outside of the casing body 28. A mowing motor (rotating device) 17 for rotating the drum 27 and a mounting bracket 29 for a heavy machine attached to the upper part of the casing body 28 are provided.

  In the present invention, as a first embodiment, the rake 24 is provided on one side of the casing body 28 so that the rake 24 can be attached and detached and the angle can be changed.

  The rake 24 has a comb blade shape, and the vicinity of the collar portion, which is the base portion thereof, is attached to a support plate 38 provided on the casing body 28 with a pipe 39, and the support plate 38 is formed in a fan shape along the arc edge. The angle can be changed by selecting one of a plurality of blind holes and hooking the middle portion of the rake 24 with the bolt 40.

  The support plate 38 is detachably attached to a bracket 42 provided on the casing body 28 with a detachable bolt 41. The detachable bolt 41 is a bolt for attaching / detaching the support plate 38 to / from the bracket 42, and is a bolt / nut.

  As shown in FIGS. 2 to 4, the bracket 42 includes a vertical plate 42 a for attaching the support plate 38 and a laterally angled plate 42 b erected on the vertical plate 42 a like a partition plate. A bearing 43 having a notch 43a opened laterally from 42b is provided so as to project the pipe 39, which is the rake root portion, with this bearing 43.

  Since the present invention employs the above-described configuration, as shown in FIGS. 3 and 4, the rake 24 is detachable from the casing body 28, and when the rake 24 is unnecessary, the support plate 38 and the bracket 42 of the casing body 28 are used together. It can be removed.

  As a second embodiment of the present invention, a rake grapple 44 comprising a fixed comb blade 45, a movable comb blade 46, and a hydraulic cylinder 47 that moves the movable comb blade 46 as a kind of rake as shown in FIGS. The casing body 28 was detachably provided on one side.

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

  The movable comb blade 46 is rotated through a lever 48 that is rotated by a hydraulic cylinder 47.

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

  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 that attaches and detaches the rake grapple 44 together with the base 49 to the bracket 50 and is fixed by bolts and nuts.

  As with the conventional example, the mower 13 itself can be replaced with a standard work tool (bucket) or other optional work tool (specifically, for example, a crusher or a gripper). It is attached to and detached from the arm 12.

  As shown in FIG. 12, the hydraulic excavator is a mini excavator with a mechanical mass of less than 6 tons, a crawler-type lower traveling body 1 and an upper revolving body provided on the lower traveling body 1 so as to be capable of turning via a turning wheel 10. 2 and an articulated working device 4 connected to the front side of the upper swing body 2 via a swing post 3.

  In the lower traveling body 1, a driving wheel 6 and a driven wheel (idler) 7 are rotatably supported on a track frame 5, and a crawler 8 is wound around the driving wheel 6 and the driven wheel 7. On the front side, a blade 9 for earth removal is provided so as to be movable up and down.

  The work 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 that are connected to the swing post 3 so as to be pivotable in the vertical direction. Are provided with a mower 13 that is pivotably connected in the vertical direction.

  As shown in FIG. 18 as the conventional example, the mower 13 of the present invention includes 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 the casing body 28. A mowing motor (rotating device) 17 that is attached to the outside of the casing and rotates the rotary drum 27, and a mounting bracket 29 for a heavy machine attached to the upper part of the casing body 28. In the figure, reference numeral 33 denotes a bearing for the rotary drum 27.

  The rotary drum 27 of the present invention has a larger diameter than the rotary drum 27 in the conventional example shown in FIG. 19, whereby a small mowing blade (hammer knife) 26 is as close to the inside of the casing body 28 as possible. I was able to do that.

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

  The casing body 28 is configured to be lightweight with a frame and a face plate. The frame is composed of a front frame 18 and a rear frame 19 located on the left and right in FIG. 1 and a spine frame 20, with the spine frame 20 on the top and a horizontal frame 21 on the lower and left and right sides. To stretch.

  The spine frame 20 and the horizontal frame 21 are beam-shaped, and the front frame 18 and the rear frame 19 are a combination of a horizontal beam and a housing-shaped frame.

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

  The octagonal corner is bilaterally symmetric, A refracted at the lower end of the spine frame 20, B refracted at the lower end of the inclined portion below it, C refracted at the lower end of the vertical descending plate portion, and this The lower end of the vertical descending plate portion is folded inward, and four Ds formed by the tips are arranged.

  The outer side 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 18. In this way, the mounting bracket 29 is provided close to the side where the front frame 18 is located on one side of the casing body 28.

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

  A suspension-like rubber sag 35 is suspended from one side of the lateral frame 21 of the casing body 28, thereby covering the outside of the opening 23 on the lower surface of the casing body 28. The lower end of the rubber sag 35 is located below the opening 23.

  The rake 24 or the rake grapple 44 is detachably provided on one side of the casing body 28, and is provided on the one side of the casing body 28 on the side where the front frame 18 is located.

  Next, the usage will be described. 12 to 17 show a state in which the grass cutter 13 is provided with the rake 24 of the present invention, and the mowing motor 17 rotates in one direction, and the rotary drum 27 also rotates in one direction.

  If the opening 23 on the lower surface of the casing body 28 is 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 and cut by the grass cutting blade 26, and the cut grass is removed. To be released.

  At this time, since the casing body 28 surrounds the periphery of the rotating drum 27, a large grass mowed by the grass cutting blade 26 can be rotated together with the grass cutting blade 26 in the casing body 28, and the grass is cut by the grass cutting blade. When the grass is turned in the casing, it collides and spreads at the corners of the octagonal body, and is broken again by the grass cutting blade, and becomes finer and falls down after repeated several times.

  As shown in FIG. 13, the arm 12 and the working tool hydraulic cylinder 16 are extended to move the mower 13 and the angle of the mower 13 is changed by the arm 12 and the working tool hydraulic cylinder 16 as shown in FIG. It can also be used on slopes.

  Stocks that could not be processed by the rotating drum 27 can be dug up using the rake 24 as shown in FIG.

  In particular, when the rake 24 is used, the casing body 28 is stood sideways as shown in the figure, but the mounting bracket 29 is provided on one side of the casing body 28 so as to be close to the side where the front frame 18 is located, so that it is stable. In this state, the rake 24 can be operated.

  Moreover, since the angle of the rake 24 can be changed, the digging operation can be selected according to the situation.

  When the rake grapple 44 is provided, the usage method is substantially the same as that of the rake 24. In use, the casing body 28 is set to stand sideways, but the mounting bracket 29 is provided on one side of the casing body 28 on the front frame 18. The rake 24 can be operated in a stable state.

  Further, in the case of the rake grapple 44, it is possible to grab a raised tree stock with the fixed comb blade 45 and the movable comb blade 46 and carry it to a predetermined place.

It is a front view which shows 1st Embodiment of the mower of this invention. It is an enlarged front view of the principal part which shows 1st Embodiment of the mower of this invention. It is a front view which shows the state of rake removal which shows 1st Embodiment of the mower of this invention. It is a top view which shows the state of rake removal which shows 1st Embodiment of the mower of this invention. It is a front view which shows 2nd Embodiment of the mower of this invention. It is a side view which shows 2nd Embodiment of the mower of this invention. It is a vertical front view of the principal part which shows 2nd Embodiment of the mower of this invention. It is a front view which shows the state of the rake grapple removal which shows 2nd Embodiment of the mower of this invention. It is a top view which shows the state of the rake grapple removal which shows 1st Embodiment of the mower of this invention. It is a vertical side view which shows one Embodiment of the mower of this invention. It is a vertical front view which shows 1st Embodiment of the mower of this invention. It is a side view of the 1st step of the use condition of the mower of the present invention. It is a side view of the 2nd step of the use condition of the mower of this invention. It is a side view of the 3rd step of the use condition of the mower of this invention. It is a side view of the 1st step of the rake use state of the mower of the present invention. It is a side view of the 2nd step of the rake use state of the mower of the present invention. It is a side view of the 3rd step of the rake use state of the mower of the present invention. It is a side view showing the structure of the hydraulic shovel to which the mower of the prior art example was attached. It is a side view partly cut away showing a conventional example.

DESCRIPTION OF SYMBOLS 1 ... Lower traveling body 2 ... Upper turning body 3 ... Swing post 4 ... Work apparatus 5 ... Track frame 6 ... Drive wheel 7 ... Driven wheel (idler) 8 ... Track (crawler)
DESCRIPTION OF SYMBOLS 9 ... Blade 10 ... Turning wheel 11 ... Boom 12 ... Arm 13 ... Mower 14 ... Boom hydraulic cylinder 15 ... Arm hydraulic cylinder 16 ... Working tool hydraulic cylinder 17 ... Mowing motor (rotating device) 18 ... Front frame 19 ... rear frame 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 ... cylinder Form 31 ... Side plate 32 ... Reinforcement rib 33 ... Bearing 34A ... Opening 34B ... Opening 35 ... Rubber dripping 37 ... Rubber dripping 38 ... Support plate (bracket) 39 ... Pipe 40 ... Bolt 41 ... Removable bolt 42 ... Bracket 42a ... Vertical plate 42b ... Angle-shaped plate 43 ... Bearing 43a ... Notch 44 ... Rake grapple 4 ... stationary comb 46 ... movable comb teeth 47 ... hydraulic cylinder 48 ... lever 49 ... base 50 ... Bracket 51 ... removable bolts

  The present invention relates to a mower detachable from an arm of a construction machine.

As a mower that can be attached to and detached from an arm of a hydraulic excavator, there is one shown in Patent Document 1 below.
Japanese Patent Laid-Open No. 2015-8702

As shown in FIG. 13 , the mower 13 is hydraulic so that it can be exchanged with a standard work tool (bucket) or other optional work tool (specifically, for example, a crusher or a gripper). It is attached to and detached from the arm 12 of the shovel.

  The hydraulic excavator is a mini excavator with 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 through a swirling wheel 10 so as to be capable of swiveling, and the upper swiveling body. An articulated working device 4 connected to the front side of the body 2 via a swing post 3 is provided.

  In the lower traveling body 1, a driving wheel 6 and a driven wheel (idler) 7 are rotatably supported on a track frame 5, and a crawler belt 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 earth removal is provided so as to be movable up and down.

  The work 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 that are connected to the swing post 3 so as to be pivotable in the vertical direction. Are provided with a mower 13 that is pivotably connected in the vertical direction.

As shown in FIG. 14 , the mower 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) that is attached to the outside of the casing body 28 to rotate the rotating drum 27, and a mounting bracket 29 for a heavy machine attached to the upper portion of the casing body 28, The casing body 28 is configured by a substantially half cylindrical body 30 and side plates 31 joined to both ends of the cylindrical body 30.

  A cylindrical body that rotatably engages the mounting bracket 29 and a fixing mechanism (not shown) that fixes the rotational position of the mounting bracket 29 are provided on the upper portion of the cylindrical body 30 of the casing body 28.

  The bracket 29 for attachment to the heavy machine is rotatably connected to the arm 12 and is connected to the working tool hydraulic cylinder 16 via a link mechanism.

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

Japanese Patent Application Laid-Open Publication No. 2004-228561 discloses a grass mower having the above-described rake grapple. 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 that rotates the movable comb blades. In addition, in patent document 2, it is a multifunctional heavy machine which can also cut a high tree besides landmine removal which has a rotary cutter, shrub cutting, cultivation, etc., and is not for exclusive use of a mower.
JP 2004-183322 A

  In Patent Document 2, the remaining root of the tree Y can be dug up by a fixed blade of a rake grapple. The root of the excavated tree Y and the first cut-down portion can be grasped with a rake grapple and carried to a predetermined place.

  In Patent Document 2, a fixed comb blade of a rake grapple is interposed between the tip of the second arm and the rotary cutter. The second arm is centered on a second rotation axis parallel to the first rotation axis at the tip of the first arm connected to the vehicle body so as to be rotatable about a horizontal first rotation axis. The multi-function heavy machine including the rotary cutter is connected to the tip of the second arm so as to be rotatable about a third rotation axis parallel to the first rotation axis. The

  There is a hydraulically driven rotary actuator as the swinging means, and 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 under the base of the fixed comb blade, from the driver's seat The blade portion of the fixed comb blade of the rake grapple and the movable comb blade are arranged in front of the rotary cutter.

  According to Patent Document 2, the remaining root of the tree Y can be dug up by a fixed blade of a rake grapple. The root of the excavated tree Y and the first cut-down portion can be grasped with a rake grapple and carried to a predetermined place.

  Further, 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 using the rotary cutter. Therefore, the fixed comb blade can be made large, and a large amount of felled trees and shrubs can be grasped at once, or a tree having a large diameter can be grasped and carried.

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

  As described above, in Patent Document 2, although a rake grapple is provided, it cannot be said that the rake grapple is provided alone. Also, in order to remove the rake grapple, the swinging means is removed, and a fixed comb blade or a movable comb blade is movable. The comb blade and hydraulic cylinder must be separated and removed.

An object of the present invention is to eliminate the disadvantages of the conventional example described above and to be detachable from an arm of a construction machine, having a rotary drum having a grass cutting blade, and a casing body for rotatably supporting and storing the rotary drum. in mowing machine, in the case of providing a laser key, which can be removed easily without disassemble the parts, providing a mower Moreover when mounted it may be mounted alone and stably the mowing machine There is to do.

To achieve the above object, the present invention according to claim 1 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. In order to provide the rake to be detachable and changeable in angle , a bracket having a rake root bearing is provided on one side of the casing body, and the rake has a comb blade shape. And a support plate for selecting one of a plurality of blind holes formed along the arc edge as a fan shape and hooking the middle part of the rake to this, and attaching and detaching the side edge of the support plate to the bracket of the casing body The gist is to attach with bolts .

According to the present invention of claim 1 Symbol placement, by providing the rake on one side of the casing, such as strains that could not be treated with mowing blades rotating drum tree can dig in this rake.

Furthermore, the rake can be attached as needed as it can be attached and detached, and if it is not necessary, it is not necessary to attach it.

In addition, the rake is comb-shaped, and the vicinity of the collar, which is the base of the rake, is pivotally attached to a support plate (bracket) provided on the casing body with a pipe, and the support plate (bracket) is fan-shaped on the arc edge. The angle can be changed by selecting one of a plurality of blind holes to be formed and hooking a halfway portion of the rake with a bolt.

Furthermore, when the rake is detachably provided and the angle can be changed, the bearing for changing the angle can also be a bracket of the casing body, and a stable support rotation can be obtained.

  As described above, the mower of the present invention can be attached to and detached from the arm of the construction machine, and includes a rotary drum having a mowing blade and a casing body that rotatably supports and stores the rotary drum. In this case, when the rake is provided, each part can be easily removed without disassembling, and when it is attached, it can be attached to the mower alone and stably.

  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 mower according to the present invention, FIG. 2 is an enlarged front view of the main part of the same, FIG. 3 is a front view showing a state of removal of the same, and FIG. 4 is a state of removal of the same. It is a top view.

As shown in FIGS. 5 and 6 , the mower 13 rotates on 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 on the outside of the casing body 28. A mowing motor (rotating device) 17 for rotating the drum 27 and a mounting bracket 29 for a heavy machine attached to the upper part of the casing body 28 are provided.

  In the present invention, the rake 24 is provided on one side of the casing body 28 so as to be detachable and changeable in angle.

  The rake 24 has a comb blade shape, and the vicinity of the collar portion, which is the base portion thereof, is attached to a support plate 38 provided on the casing body 28 with a pipe 39, and the support plate 38 is formed in a fan shape along the arc edge. The angle can be changed by selecting one of a plurality of blind holes and hooking the middle portion of the rake 24 with the bolt 40.

The support plate 38 is detachably attached to a bracket 42 provided on the casing body 28 with a detachable bolt 41 at its end . The detachable bolt 41 is a bolt for attaching / detaching the support plate 38 to / from the bracket 42, and is a bolt / nut.

  As shown in FIGS. 2 to 4, the bracket 42 includes a vertical plate 42 a for attaching the support plate 38 and a laterally angled plate 42 b erected on the vertical plate 42 a like a partition plate. A bearing 43 having a notch 43a opened laterally from 42b is provided so as to project the pipe 39, which is the rake root portion, with this bearing 43.

  Since the present invention employs the above-described configuration, as shown in FIGS. 3 and 4, the rake 24 is detachable from the casing body 28, and when the rake 24 is unnecessary, the support plate 38 and the bracket 42 of the casing body 28 are used together. It can be removed.

  As with the conventional example, the mower 13 itself can be replaced with a standard work tool (bucket) or other optional work tool (specifically, for example, a crusher or a gripper). It is attached to and detached from the arm 12.

As shown in FIG. 7 , the hydraulic excavator is a mini excavator having a mechanical mass of less than 6 tons, a crawler type lower traveling body 1, and an upper revolving body provided on the lower traveling body 1 so as to be capable of turning via a turning wheel 10. 2 and an articulated working device 4 connected to the front side of the upper swing body 2 via a swing post 3.

  In the lower traveling body 1, a driving wheel 6 and a driven wheel (idler) 7 are rotatably supported on a track frame 5, and a crawler 8 is wound around the driving wheel 6 and the driven wheel 7. On the front side, a blade 9 for earth removal is provided so as to be movable up and down.

  The work 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 that are connected to the swing post 3 so as to be pivotable in the vertical direction. Are provided with a mower 13 that is pivotably connected in the vertical direction.

As shown in FIG. 13 as the conventional example, the mower 13 of the present invention includes 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 the casing body 28. A mowing motor (rotating device) 17 that is attached to the outside of the casing and rotates the rotary drum 27, and a mounting bracket 29 for a heavy machine attached to the upper part of the casing body 28. In the figure, reference numeral 33 denotes a bearing for the rotary drum 27.

The rotating drum 27 of the present invention has a larger diameter than the rotating drum 27 in the conventional example shown in FIG. 14 , whereby a small mowing blade (hammer knife) 26 is as close as possible to the inside of the casing body 28. I was able to do that.

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

  The casing body 28 is configured to be lightweight with a frame and a face plate. The frame is composed of a front frame 18 and a rear frame 19 located on the left and right in FIG. 1 and a spine frame 20, with the spine frame 20 on the top and a horizontal frame 21 on the lower and left and right sides. To stretch.

  The spine frame 20 and the horizontal frame 21 are beam-shaped, and the front frame 18 and the rear frame 19 are a combination of a horizontal beam and a housing-shaped frame.

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

  The octagonal corner is bilaterally symmetric, A refracted at the lower end of the spine frame 20, B refracted at the lower end of the inclined portion below it, C refracted at the lower end of the vertical descending plate portion, and this The lower end of the vertical descending plate portion is folded inward, and four Ds formed by the tips are arranged.

  The outer side 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 18. In this way, the mounting bracket 29 is provided close to the side where the front frame 18 is located on one side of the casing body 28.

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

  A suspension-like rubber sag 35 is suspended from one side of the lateral frame 21 of the casing body 28, thereby covering the outside of the opening 23 on the lower surface of the casing body 28. The lower end of the rubber sag 35 is located below the opening 23.

  The rake 24 or the rake grapple 44 is detachably provided on one side of the casing body 28, and is provided on the one side of the casing body 28 on the side where the front frame 18 is located.

Next, the usage will be described. 7 to 12 show a state in which the grass cutter 13 is provided with the rake 24 of the present invention, and the mowing motor 17 rotates in one direction, and the rotary drum 27 also rotates in one direction.

  If the opening 23 on the lower surface of the casing body 28 is 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 and cut by the grass cutting blade 26, and the cut grass is removed. To be released.

  At this time, since the casing body 28 surrounds the periphery of the rotating drum 27, a large grass mowed by the grass cutting blade 26 can be rotated together with the grass cutting blade 26 in the casing body 28, and the grass is cut by the grass cutting blade. When the grass is turned in the casing, it collides and spreads at the corners of the octagonal body, and is broken again by the grass cutting blade, and becomes finer and falls down after repeated several times.

As shown in FIG. 8, to move the mower 13 by extending the arm 12 and the implement hydraulic cylinder 16, by changing the angle of the mower 13 by the arm 12 and the implement hydraulic cylinder 16 as shown in FIG. 9 It can also be used on slopes.

Etc. could not be processed in the rotating drum 27 strain can dig using rake 24 as shown in FIG. 10.

  In particular, when the rake 24 is used, the casing body 28 is stood sideways as shown in the figure, but the mounting bracket 29 is provided on one side of the casing body 28 so as to be close to the side where the front frame 18 is located, so that it is stable. In this state, the rake 24 can be operated.

  Moreover, since the angle of the rake 24 can be changed, the digging operation can be selected according to the situation.

It is a front view which shows 1st Embodiment of the mower of this invention. It is an enlarged front view of the principal part which shows 1st Embodiment of the mower of this invention. It is a front view which shows the state of rake removal which shows 1st Embodiment of the mower of this invention. It is a top view which shows the state of rake removal which shows 1st Embodiment of the mower of this invention. It is a vertical side view which shows one Embodiment of the mower of this invention. It is a vertical front view which shows 1st Embodiment of the mower of this invention. It is a side view of the 1st step of the use condition of the mower of the present invention. It is a side view of the 2nd step of the use condition of the mower of this invention. It is a side view of the 3rd step of the use condition of the mower of this invention. It is a side view of the 1st step of the rake use state of the mower of the present invention. It is a side view of the 2nd step of the rake use state of the mower of the present invention. It is a side view of the 3rd step of the rake use state of the mower of the present invention. It is a side view showing the structure of the hydraulic shovel to which the mower of the prior art example was attached. It is a side view partly cut away showing a conventional example.

DESCRIPTION OF SYMBOLS 1 ... Lower traveling body 2 ... Upper turning body 3 ... Swing post 4 ... Work apparatus 5 ... Track frame 6 ... Drive wheel 7 ... Driven wheel (idler) 8 ... Track (crawler)
DESCRIPTION OF SYMBOLS 9 ... Blade 10 ... Turning wheel 11 ... Boom 12 ... Arm 13 ... Mower 14 ... Boom hydraulic cylinder 15 ... Arm hydraulic cylinder 16 ... Working tool hydraulic cylinder 17 ... Mowing motor (rotating device) 18 ... Front frame 19 ... rear frame 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 ... cylinder Form 31 ... Side plate 32 ... Reinforcement rib 33 ... Bearing 34A ... Opening 34B ... Opening 35 ... Rubber dripping 37 ... Rubber dripping 38 ... Support plate (bracket) 39 ... Pipe 40 ... Bolt 41 ... Removable bolt 42 ... Bracket 42a ... Vertical plate 42b ... Angle-shaped plate 43 ... Bearing 43a ... Notch
48 ... Lever 49 ... Base 50 ... Bracket 51 ... Removable bolt

Claims (6)

  In a mower having a rotary drum having a mowing blade and a casing body for rotatably supporting and storing the rotary drum, a bracket is provided on one side of the casing body. A mowing machine characterized in that a rake is detachably attached to a bracket and the angle can be changed.   The rake has a comb blade shape, the base part of which is pivotally attached, and one of a plurality of blind holes formed along the arc edge as a fan shape is selected, and a support plate for hooking the middle part of the rake to this The mower according to claim 1, wherein a side end of the support plate is attached to a bracket of the casing body with a detachable bolt.   3. The mower according to claim 1, wherein the bracket of the casing body has a rake root portion bearing.   In a mower having a rotary drum having a mowing blade and a casing body for rotatably supporting and storing the rotary drum, a bracket is provided on one side of the casing body. A mowing machine characterized in that a rake grapple comprising a fixed comb blade, a movable comb blade, and a hydraulic cylinder for moving the movable comb blade is integrally attached to the bracket so as to be detachable.   The mower according to claim 4, wherein the rake grapple is attached to a bracket of the casing body with a detachable bolt. The casing body has a front frame and a rear frame on the left and right sides, with the spine frame on the top, and a horizontal frame on the bottom and on the left and right, and a face plate. The backbone frame has a mounting bracket for heavy equipment. 6. The mower according to claim 1, wherein the mounting bracket is also fixed to the front frame, and a rake or a rake grapple is provided on one side of the casing body on the side where the front frame is located.