KR20030059519A - Device for cutting a transplantation tree - Google Patents

Abstract

PURPOSE: Provided is a replantation tree cutting device which cuts the roots of the tree to be replanted in a domed shape, and simultaneously, vinyl-packages them, thereby reducing the working time and enhancing the working efficiency. CONSTITUTION: A replantation tree cutting device comprises a swing base(22) fitted to the boom of heavy equipment, a flexible shaft driven by a plurality of oil pressure motors, a flexible column surrounding the flexible shaft, and a plurality of disk cutters fitted to the outer periphery of the flexible column. First and second cutter housings(30 and 30') are rotatably fitted to the swing base internally with the disk cutters such that they are capable of being coupled to or decoupled from the swing base by the operation of first and second oil pressure cylinders(70 and 70'). A first oil pressure motor(41) is built in the first cutter housing to rotate the flexible shaft, and a second oil pressure motor(42) is built in the second cutter housing to rotate the flexible shaft.

Description

Tree cutting device for transplantation {DEVICE FOR CUTTING A TRANSPLANTATION TREE}

The present invention relates to a tree cutting device for transplantation, and more particularly, a flexible shaft driven by a plurality of hydraulic motors is rotatably mounted on a cutter housing, and a plurality of cutting blades are attached to an outer circumferential surface of the flexible shaft. It relates to an implantable tree cutting device that can insert a disc cutter, while storing packaging vinyl in a case attached to the outside of the housing to easily carry out cutting and packaging of the transplanted tree.

In order to be used as a roadside tree, a garden tree, or a landscaping tree, a tree grown in a certain habitat must be cut and moved. When transplanting such a tree, the soil attached to the root of the tree should be transplanted together. For this purpose, in the past, the root part of the tree was cut and packaged by hand using a hoe, shovel, chain saw, etc. As a result, the transplantation rate was lowered, and there was also a time-consuming problem. In addition, the chain saw was used to dig around the tree in a semi-circular shape, and then covered with vinyl to prevent the soil from falling off and wrapped around the roots with a rubber band or rope.

This transplant work takes a lot of time and manpower, damage to the roots caused by the loss of efficiency, as well as high risk of death in the tree after transplantation. Therefore, there is a need for a dedicated tree transplanter for transplant work, for example, the tree transplanter disclosed in Korean Patent Laid-Open No. 2001-47889. The tree transplanter disclosed herein has a chain saw subframe in a straight or semi-circular shape, in which the chain saw blade is rotatably mounted, and in the longitudinal section of the subframe, the chain saw blade passes without the force of the opposite side in the direction of travel. The penetrating rod groove is provided, and a jaw jaw is installed on one side of the subframe not passing the chain saw blade, which can be broken by biting the wrapping paper. In addition, the chain saw blade subframe is equipped with a hydraulic cylinder for adjusting the clearance angle, when the chain saw blade rotates the winch gear, the volume of the saw blade is folded in half to dig into the rod groove, the return shaft at the end of the subframe It has a structural feature in which gears are provided.

In the conventional transplanted tree cutting device having such a configuration, since the chain saw blade is used, the roots are caught by the packing machine during the cutting operation of the root, and the packing machine is broken, and the chain saw is separated by soil, stone, or root.

The present invention for solving this problem is equipped with a large number of disc-shaped cutters on the flexible shaft capable of transmitting power while rotating in a curved state at a predetermined angle, while cutting the root portion of the tree and at the same time excavation of the cutter housing By proceeding planting by covering the roots and planting the soil together with vinyl pulled from the plastic case provided on the outside, it provides a transplanting tree cutting device that can shorten the working time and improve the transplant rate of trees. There is a purpose.

1 is a block diagram showing a tree cutting device according to a preferred embodiment of the present invention,

Figure 2 is a state of use of the tree cutting device shown in Figure 1,

3 is a side view showing the assembled state of the disc cutter shown in FIG.

4 is an exploded perspective view of the disc cutter shown in FIG. 1;

Fig. 5A is an enlarged view of the disc cutter shown in Fig. 4, and Figs. 5B and 5C are exemplary views of a cutting edge exchange device.

6 and 7 are cross-sectional views showing the internal and external configuration of the cutter housing employed in the preferred embodiment of the present invention, Figure 6 shows a rolled vinyl, Figure 7 shows a corrugated vinyl,

8 is a side view of the cutter housing shown in FIG. 6;

8 is a cross-sectional view showing the configuration of the tilting means employed in the preferred embodiment of the present invention,

9 to 11 are views showing the operating state of the tilting means shown in FIG.

12 is a block diagram showing a tree cutting device according to another embodiment of the present invention,

13 is a cross-sectional view showing the internal structure of the tree cutting device shown in FIG.

14 is a side cross-sectional view showing a state of use of the tree cutting device according to the present invention;

15 is a front sectional view of the hydraulic circuit diagram of the embodiment shown in FIG. 1;

FIG. 16 is a perspective view illustrating a configuration of a turning joint employed in FIG. 15. FIG.

♣ Explanation of symbols for main part of drawing ♣

10: Boom 16: Main cylinder

22: swing base 30: cutter housing

32: disc cutter 33: cutting blade

34: flexible column 36: flexible shaft

38: Column support 39: Cap

41-44: Hydraulic motor 50: Vinyl

52: vinyl case 60: disk

64: bearing 66: rack

70, 70 ': Hydraulic cylinder 80: Tilting lever

100: turning joint 102, 104: inner, outer cylinder

120: motor 122: pinion

The transplanting tree cutting device of the present invention for achieving the above object is installed in the end of a heavy equipment boom such as an excavator or articulated crane in the transplanting tree cutting device for plastic packaging while cutting the root portion of the tree in a hemispherical shape, the main cylinder The swing base is pivotally mounted to the end of the boom around the pivot by a rotation, one end is coupled to the lower end of the swing base so as to be tiltable, and the other end is provided with a semi-circular cutter housing having a motor housing, and both ends of the cutter housing A first hydraulic motor and a second hydraulic motor, a flexible column embedded in the cutter housing by a cap and a column support, a disc cutter fixed to an outer circumferential surface of the flexible column, and having a plurality of cutting blades attached to the outer circumferential portion thereof; One end is connected to the first hydraulic motor and the other end is fitted in the flexible column. And a tilting means for rotating the cutter housing in accordance with the progress of the cutting operation.

Hereinafter, with reference to the accompanying drawings will be described in detail for the transplanting tree cutting device according to a preferred embodiment of the present invention.

1 is a block diagram showing a tree cutting device according to a preferred embodiment of the present invention, Figure 2 is a view showing a state of use of the tree cutting device shown in Figure 1, Figure 3 shows an assembled state of the disc cutter shown in FIG. Fig. 4 is an exploded perspective view of the disc cutter shown in Fig. 1, Fig. 5A is an enlarged view of the disc cutter shown in Fig. 4, and Figs. 5B and 5C are exemplary views of the cutting edge exchange device.

First, as shown in Figure 1, in order to facilitate the transplantation of the tree, the preferred embodiment of the present invention illustrates a implanter having a structure with a plurality of disc cutter rotated by a flexible shaft.

To this end, the swing base 22 is rotatably mounted on the lower end of the boom 10 of the heavy equipment such as an excavator by using the pivot pin 20, and the swing base 22 has a semicircular first and second shape. The cutter housings 30 and 30 'were connected. In addition, first and second hydraulic cylinders 70 and 70 'are provided for coupling and disengaging these cutter housings 30 and 30'.

Here, one end of the first hydraulic cylinder 70 is fixed to the upper end of the swing base 22 by the pin 74 and the piston rod 72 is protrudingly mounted on the other end thereof, and the piston rod 72 is It is fixed to the first hydraulic motor 41 by the pin 76, one end of the second hydraulic cylinder 70 'is fixed to the upper end of the swing base 22 by the pin 74' and the other end of the piston rod ( 72 'is protrudingly mounted, and the piston rod 72' is fixed to the second hydraulic motor 42 by a pin 76 '.

The first and second cutter housings 30 and 30 'are rotatably mounted to the swing base 22 so as to be engaged and detached by the operation of the first hydraulic cylinder 70 and the second hydraulic cylinder 70'. . In addition, a first hydraulic motor 41 for rotating the flexible shaft 36 is embedded in the first cutter housing 30, and a second hydraulic motor 42 is embedded in the second cutter housing 30 ′ so that the flexible shaft ( Rotating 36, the structure of the flexible shaft 36 is shown in Figs.

Meanwhile, couplings 46 and 46 'are provided at the centers of the first and second cutter housings 30 and 30' for coupling and dismounting. The motor 43 and the fourth hydraulic motor 44 may be provided. The boom 10 of the excavator or articulated crane may be provided with tilting means for rotating the cutter housings 30 and 30 'as the cutting operation proceeds.

2 shows a state in which the first cutter housing 30 and the second cutter housing 30 'are coupled by the first hydraulic cylinder 70 and the second hydraulic cylinder 70'.

3 to 5a, 5b and 5c show the structure of a disc cutter according to a preferred embodiment of the present invention in detail.

A plurality of column supports 38 are mounted in the cutter housing 30 in a spaced apart state at predetermined intervals, and bolts 40 fastened to two fastening holes 38a and 39a to these column supports 38. ), The cap 39 is covered, and a plurality of flexible columns 34 are fixedly supported in the cap 39.

In this way, a shaft hole 34a is formed inside the flexible column 34 supported and fixed to the cutter housing 30 by the cap 39 and the column support 38, and the shaft hole 34a has a first and The flexible shaft 36 is interlocked with the second hydraulic motor 42 is inserted. The central portion is joined by couplings 46 and 46 '.

On the other hand, a plurality of disc cutters 32 are fixed to the outer circumferential surface of the flexible column 34 at predetermined intervals, and a plurality of cutting edges made of artificial diamond or cemented carbide are provided on the outer circumferential edges of the disc cutters 32. (33) is attached.

In addition, the assembled state of the disc cutter 32 is shown in Fig. 3, a separate perspective view of the disc cart is shown in Fig. 4, and an illustration of the cutting edge exchange device is shown in Figs. 5A, 5B and 5C.

As shown in FIG. 4, the fastener 33a for exchanging the cutting edge according to the wear of the cutting edge, and the fastening groove 33d for fastening the cutting edge fitting groove 33b and the fixing bolt 33c formed thereon are provided. It is provided.

In addition, the state of cutting the tree (T) using the cutting device according to the invention is shown in FIG. As shown in Figure 6, during the transplanting operation of the tree to take out the plastic packaging is carried out together, this vinyl storage structure is shown in detail in FIG.

As shown in these figures, in the assembled state of the circular cutter 32, a substantially + -shaped flexible shaft 36 is arranged to enable longitudinal movement in the center and power transmission in the axial direction. . This flexible shaft 36 is wrapped by the flexible column 34. And the disc cutter 32 with many cutting edges 33 is fitted in the outer peripheral surface of this flexible column 34, and the semicircular cutter housing 30 is arrange | positioned on the outer side of this disc cutter 32. As shown in FIG.

The cutter housing 30 is formed with a plurality of through spaces 30a through which the soil is discharged along the arrow direction P, and a packaging vinyl (packaging) case 52 is mounted on the outer upper end so as to be opened and closed. In the packaging case 52, a roll-shaped vinyl 50 is wound as shown in FIG. 6A, or as shown in FIG. 6B, a folding type 54 'vinyl 50 is wrapped in a packaging case 52'. ) Is built in. Therefore, when the cutting operation is carried out while the end of the vinyl 50 is fixed to the ground G by using a fixing means such as a suitable pack, the cutter housing is operated according to the operation of the tilting means to be described later. As the 30 is tilted, the vinyl 50 is pulled out so as to cover the root portion of the tree T roundly. Here, the vinyl case 52 is separated into a plurality of configurations in order to be able to bend to fit the shape of the cutter housing 30, the upper end of the cutter housing 30 by the hinge 54 for the replacement of the vinyl The upper end is rotatably coupled, and the lower end is fixed to the cutter housing 30 by the locker 56.

Next, Figs. 9 to 11 are views showing the operating state of the tilting means employed in this embodiment.

First, as shown in FIG. 9, when the cutting operation of the tree proceeds, the configuration of the tilting means according to the present invention for tilting the cutter housings 30 and 30 'is one end of the boom by the pin 96. Tilt cylinder 90 rotatably coupled to (10) and the other end of the piston rod 92 is mounted so as to protrude, and one end of both ends of the boom (10) by pins (84), (88), respectively It is coupled to the cutter housing 30 and the other end of the center consists of the tilt lever 87, 80 coupled to the piston rod 92 of the tilt cylinder 90 by a pin 94.

Accordingly, when the cutter housing 30 is tilted, the piston rod 92 protrudes while the hydraulic pressure is supplied to the tilt cylinder 90, and the cutter housing 30 is interposed between the two tilt levers 87 and 80. Pressurizes, thereby, the cutter housing 30 is rotated about the rotation pin (20).

In this state, the hydraulic pressure is supplied to the tilt lever 90 so that the piston rod 92 protrudes to pressurize the cutter housing 30 again via the tilt cylinder 90, whereby the cutter housing 30 is additionally added. As it is rotated to, tree cutting is possible. Of course, when the piston rod 92 of the tilt lever 90 is completely projected, the cutter housing 80 is arranged to be substantially horizontal to the ground to cut the root portion of the tree in a hemispherical shape.

Looking at the process of cutting off the tree for transplantation using the tree cut-off of this configuration, the first hydraulic motor 41 and the second hydraulic motor 42 (or third and fourth hydraulic motors: 43, 44) When the flexible shaft 36 rotates in accordance with the operation, the flexible cutter 34 surrounding the flexible shaft 36 rotates together, and the disc cutter 32 fixed to the outer circumferential surface of the flexible column 34 starts to rotate. By cutting off the ground around the tree roots, the rolled vinyl placed on the back will come out and wrap the tree roots.

At this time, the rolled vinyl can automatically wrap the roots of the tree when it is fixed to one side with a pin or the like prior to operation, and for this purpose, hydraulic pressure is supplied to the tilt cylinder 90, thereby tilting as described in FIGS. 9 to 11. The cutter housing 30 is rotated by the operation of the levers 87 and 90 to enable tilting.

Next, a tree cutting device for transplantation according to another embodiment of the present invention will be described with reference to FIGS. 12 to 16.

As shown, the swing base 22 is tiltably mounted to the lower end of the boom 10 of the heavy equipment such as an excavator or an articulated crane using a pivot shaft 12, and the swing base 22 has a semicircular shape. The cutter housing 30 was connected. In addition, the main cylinder 16 for adjusting the cutting range of the tree through the left and right movement of the cutter housing 30 is provided. One end of the main cylinder 16 is rotatably mounted to the boom 10 by a pin 14, a piston rod 18 is protrudingly inserted at the other end, and one end of the piston rod 18 is pinned. It is fixed to the swing base 22 by 20.

On the other hand, a plurality of disc cutters 32 are rotatably mounted to the cutter housing 30 by the driving force of the motor transmitted through the flexible shaft 36. In addition, one end of the cutter housing 30, which is tiltably coupled to the swing base 22, has a first hydraulic motor 41 operatively coupled to one end of the flexible shaft 36, and the cutter housing 30. The second hydraulic motor 42 is operatively coupled to the other end of the flexible shaft 36.

The center of the flexible shaft 36 is mounted to enable power transmission by couplings 46 and 46 ', and if necessary, third and fourth hydraulic motors are added instead of these couplings 46 and 46'. It is also possible to increase the driving force of the flexible shaft 36 by installing.

In order to tilt the cutter housing 30 as the tree cutting operation proceeds, the disk 60 is fixed to the lower end of the swing base 22 by bolts 62. In addition, one end of the cutter housing 30 in which the first hydraulic motor 41 is embedded is mounted to be tiltable about the disk 60 via a bearing 64 and a rack 66 is formed on an outer circumferential surface thereof. have.

On the other hand, the tilting means employed in the present invention consists of a hydraulic, pneumatic or electric motor 120 mounted to the swing base 22, and the pinion 122 fixed to the shaft of the motor 120. Since the pinion 122 is coupled with the rack 66 formed on the outer circumferential surface of the cutter housing 30, when the pinion 122 rotates by the driving force transmitted from the motor 120, the rack 66 rotates together. The cutter housing 30 can be rotated about the disk 60. Motor 120 is secured to swing base 22 for proper fasteners, such as bolts 74.

The process of cutting off the tree for transplantation using the tree cutting method of this structure is demonstrated.

When the flexible shaft 36 rotates according to the operation of the first hydraulic motor 41 and the second hydraulic motor 42 (or the third and fourth hydraulic motors), the flexible column surrounding the flexible shaft 36 As the 34 rotates together, the disc cutter 32 fixed to the outer circumferential surface of the flexible column 34 starts to rotate to cut the ground around the tree roots.

At the same time, when the hydraulic power is supplied to the motor 120 and the pinion 122 rotates, the cutter housing 30 is pressed while rotating to the rack 66 engaged with the pinion 122, thereby cutting the cutter housing. 30 allows tilting of the cutter housing 30 while rotating about the disk 74.

Next, turning joint means are shown in FIGS. 15 and 16. As shown in these figures, the turning joint 100 employed in the present invention is composed of an inner cylindrical body 102 and an outer cylindrical body 104, the mounting flange 106 on the upper end of the outer cylindrical body 104 Is formed to be integrally coupled to the disk 60 by the bolt 108. A plurality of oil rings 108 are sandwiched between the inner cylindrical body 102 and the outer cylindrical body 104.

Meanwhile, two hydraulic lines 112 and 113 are formed inside the turning joint 100, and these hydraulic lines 112 and 113 supply compressed fluid to the hydraulic cylinder 70 and the hydraulic motor 41, respectively. It is connected to the supply line (114, 116).

According to the present invention described above, a flexible shaft driven by a plurality of hydraulic motors is rotatably mounted on a cutter housing, and a plurality of disc cutters having a plurality of cutting blades attached to the outer circumferential surface thereof are fitted to the flexible shaft. In the case attached to the outside, by storing the packaging vinyl, the packaging material is discharged as the cutting progresses by the disk cutter rotating at a high speed, and the roots are subsequently packaged, and the root portion of the tree to be transplanted is cut in a hemispherical shape. At the same time, there is an advantage that the plastic packaging of the root portion can shorten the working time and improve the workability.

Claims (7)

A swing base fixed to a heavy equipment boom such as an excavator or an articulated crane, a flexible shaft driven by a plurality of hydraulic motors, a flexible column surrounding the flexible shaft, and a plurality of disc cutters mounted on the outer circumferential surface of the flexible column. In the tree cutting device for transplantation, the disc cutter in a state in which the first hydraulic cylinder 70 and the second hydraulic cylinder 70 'are rotatably mounted to the swing base 22 so as to be coupled and detached by the operation. First and second cutter housings 30 and 30 ′ in which 32 are embedded, and first hydraulic motor 41 and second in which the flexible shaft 36 is rotated in the first cutter housing 30. A second hydraulic motor 42 which is embedded in the cutter housing 30 'and rotates the flexible shaft 36, and a coupling 46 which couples and separates the first and second cutter housings 30 and 30'. 46 ') and depending on the progress of the cutting operation Transplanting tree cutting device, characterized in that it comprises a tilting means for rotating the cutter housing (30, 30 '). According to claim 1, One end of the first hydraulic cylinder 70 is fixed to the upper end of the swing base 22 by a pin 74 and the piston rod 72 is protrudingly mounted on the other end, the piston The rod 72 is fixed to the first hydraulic motor 41 by a pin 76, and one end of the second hydraulic cylinder 70 ′ is an upper end of the swing base 22 by a pin 74 ′. And a piston rod 72 'protrudes from the other end thereof, and the piston rod 72' is fixed to the second hydraulic motor 42 by a pin 76 '. Tree cutting device. According to claim 1, The tilting means is one end of the tilt cylinder 90 is rotatably coupled to the boom 10 by the pin 96 and the other end of the tilt cylinder 90 is mounted so as to protrude, One end is connected to the boom 10 and the cutter housing 30 by pins 84 and 98, respectively, and the other end of the center is the piston rod 92 of the tilt cylinder 90 by pins 94. Tree cutting device for transplantation, characterized in that consisting of the tilt lever (87), (80) operatively coupled to. In the implantable tree cutting device installed at the end of heavy equipment booms such as excavators or articulated cranes to cut the root part of the tree in a hemispherical shape, plastic packing, the boom (10) around the pivot shaft 12 by the main cylinder (16) Swing base 22 is rotatably mounted at the end of the), one end is a semi-circular cutter housing 30 is tiltably coupled to the lower end of the swing base 22, and both ends of the cutter housing 30, respectively The first hydraulic motor 41 and the second hydraulic motor 42, the flexible column 34 embedded in the cutter housing 30 by the cap 39 and the column support 38, and the flexible column 34. Fixed to the outer circumferential surface of the) and the outer peripheral portion has a plurality of cutting blades (33) attached to the disc cutter 32, and one end is connected to the first hydraulic motor 41 in the state fitted into the flexible column 34 The other end is connected to the second hydraulic motor 42 and interlocked. Coupling the flexible shaft 36, and a transplant device for cut tree, it characterized in that it comprises a tilting means for the progress of the cut work thus pivoting the cutter housing. 5. The method of claim 4, wherein a plurality of packaging vinyl cases 52, in which the scroll type and the folding type vinyl 50 are accommodated and drawn out, are mounted on the outer upper end of the cutter housing 30 so as to be opened and closed. Tree cutting device for transplantation. 5. The one end of the cutter housing 30 in which the disk 74 is fixed to the lower end of the swing base 22 by bolts 62, and the first hydraulic motor 41 is embedded therein. It is mounted so as to be tilted around the disk 74 via the 70 and the outer circumferential surface is formed with a rack 66, and is fixed to the shaft of the motor 120 in a state of being engaged with the rack 66 And a pinion (122) for tilting the cutter housing (30) about a disk (74) by a driving force transmitted from a motor. 5. The cutting device for transplanting trees according to claim 4, wherein the cutting blades (33) are interchangeable with the fixing bolts (33b) by the fasteners (33a).