JP2004011390A - Boring machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a boring machine capable of stably making the boring machine independent even if it is removed from a tractor, at the same time, omitting a stand provided on a loading platform side and reducing the number of structural members of the stand to facilitate the manufacturing at a low cost. <P>SOLUTION: A supporting frame 4 is put on the tractor through three point link means 3, a boring mechanism 6 having an auger 35 in a liftable manner is provided on the supporting frame 4, at the same time, in the boring machine having the loading platform 20, the loading platform 20 is provided on a loading platform attitude A on which a load is laid and a stand attitude B supporting the supporting frame 4 so as to make it become independent in an attitude variable manner, and a fixed means for fixing the load platform 20 to the load platform attitude A and the stand attitude B in a detachable manner is provided. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention mainly relates to a drilling machine for forming a hole for erecting a pile, a pillar, or the like on the ground.
[0002]
[Prior art]
As a drilling machine for drilling holes at predetermined intervals on the ground, a drilling mechanism having an auger that can be raised and lowered is provided on a support frame mounted on a tractor via three-point link means, and a pile or the like is mounted. There is a type in which a loading platform is provided so as to protrude in the horizontal direction and, for example, a pile or the like is inserted into a hole drilled by a drilling mechanism so as to stand up.
[0003]
[Problems to be solved by the invention]
However, in conventional drilling machines of this type, a pair of left and right stands are provided on the left and right sides of the support frame in order to be able to stand on its own when detached from the tractor, and a pair of right and left is provided on the protruding end of the loading platform. In some cases, stands are provided, and the stands can be freely changed between a stand posture protruding downward and a folded posture protruding in a horizontal direction or the like.
Therefore, conventionally, it was necessary to provide a stand also on the loading side, and many components of the stand were required, and the manufacture of the entire drilling machine was troublesome and the manufacturing cost was high.
[0004]
In view of the above problems, the present invention can stably stand alone even when the drilling machine is detached from the tractor, and can omit the stand provided on the loading side, thereby reducing the number of constituent members of the stand, making it easy to manufacture and inexpensive. It can be provided to.
[0005]
[Means for Solving the Problems]
A technical means of the present invention for solving this technical problem is a drilling mechanism in which a support frame 4 is mounted on a tractor 2 via a three-point link means 3 and an auger 35 is provided on the support frame 4 so as to be able to move up and down. 6 is provided, and in the drilling machine in which the loading platform 20 is provided,
The carrier 20 is provided so as to be freely changeable between a carrier posture A for placing a load and a stand posture B for supporting the support frame 4 so as to be self-supporting, and the carrier 20 is detachable between the carrier posture A and the stand posture B. The fixing means 50 is provided for fixing to
[0006]
Another technical means of the present invention is that a stand 23 is provided on each of the left and right sides of the support frame 4 so as to project downward and be in a stand posture. B, and the support frame 4 is supported by the stand 23 and the carrier 20 in the stand posture B so as to be self-standing.
Another technical means of the present invention is that the loading platform 20 is supported by the mounting frame 31 on the support frame 4 side around the axis of the pin so that the loading platform 20 projects horizontally. And a stand posture B which is inclined in the rearward upward direction.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 3, reference numeral 1 denotes a drilling machine mounted on the tractor 2 via three-point link means 3, and the three-point link means 3 has a pair of left and right lower links 3A and one top link 3B. The drilling machine 1 has a support frame 4 formed into a rectangular frame shape by connecting, for example, three vertical members 4A with upper and lower horizontal members 4B. The three-point link means 3 can be moved up and down by a hydraulic device 5 of the tractor 2, the hydraulic device 5 has a lift arm 5a and a lift rod 5b, and the verticality (inclination angle) of the support frame 4 is three points. It can be adjusted by the link means 3. In addition, 11 is a rear wheel of the tractor 2.
[0008]
1 and 2, a lower link connecting portion 7 is provided on the left and right sides of a lower portion on the front surface of the support frame 4, and a top link connecting portion 8 is provided on the left and right center of the halfway height. The lower link 3A is connected to the connecting portion 7, and the top link 3B is connected to the top link connecting portion 8.
An operating means 9 for operating the drilling mechanism 6 is provided at a position above the top link connecting portion 8 on the front surface of the support frame 4. The operating means 9 controls pressure oil supplied from a hydraulic pump of the tractor 2 to a hydraulic motor 16 and a hydraulic cylinder 17 described later.
[0009]
The operating means 9 may be mounted on the right or left vertical member 4A on the front of the support frame 4, but since the drilling mechanism 6 can change the left and right positions, the operator can move the tractor 2 from the left or right. It is located in the center so that it can be easily operated even when turning backwards from the side.
The drilling mechanism 6 connects the upper and lower support plates 26 with a pair of front and rear guide members 18 formed of a rod material such as a squeeze rod, and protrudes the support arms 15 laterally from the upper and lower support plates 26 to form the machine frame 12. The distal end of the support arm 15 is swingably supported via a vertical axis 13 on a mounting plate 27 provided on the upper and lower horizontal members 4B of the support frame 4.
[0010]
The upper and lower mounting plates 27 project rearward from the upper and lower horizontal members 4B, the support arms 15 are positioned at a height overlapping the horizontal members 4B, and each of the upper and lower mounting plates 27 is formed of two upper and lower plates. Are sandwiched vertically.
Locking means 14 is provided between the upper mounting plate 27 and the support arm 15 for fixing the drilling mechanism 6 at a position where the drilling mechanism 6 is swung (offset) to one of the right and left sides. The lock means 14 is formed by a lock pin 14A and a pin hole 14B formed in the upper mounting plate 27, and swings the drilling mechanism 6 to the left as shown by the solid line in FIG. The position of the drilling mechanism 6 is fixed by penetrating the lock pin 14A through the mounting plate 27 and the support arm 15 in a state of being overlapped with the left portion of 4B.
[0011]
When the position of the drilling mechanism 6 is changed to the right side, the lock pin 14A is pulled out, the locking means 14 is released, and the drilling mechanism 6 is swung about the longitudinal axis 13 so that the swinging support arm 15 and the mounting plate 27 The lock pin 14A penetrates the right pin hole 14B (shown by a two-dot chain line in FIG. 2).
The drilling mechanism 6 includes a pair of guide members 18 which support a lifting table 28 so as to be slidable up and down. The lifting table 28 includes two upper and lower plate members 28A and a fitting member 28B fitted to the guide member 18. The hydraulic motor 16 is attached to an outer portion in the left-right direction, and a lower portion of a cylinder tube 17A of the hydraulic cylinder 17 is connected to an inner portion in the left-right direction of the lift 28.
[0012]
The hydraulic cylinder 17 has a distal end (lower end) of a piston rod 17B connected to a lower mounting plate 27 so that the cylinder tube 17A moves up and down by expansion and contraction. The hydraulic motor 16 is moved up and down via 28.
An auger (drill) 35 is detachably connected to an output shaft 16A of the hydraulic motor 16 via a connecting member. The auger 35 can be changed according to the diameter of the hole to be formed.
[0013]
Reference numeral 29 denotes a cover provided on the machine frame 12, which covers the periphery of the hydraulic motor 16, the guide member 18, and the elevator 28.
At the lower part of the support frame 4, a loading platform 20 for mounting the long object 19 is provided so as to protrude backward, and at the upper rear surface of the support frame 4, a guide means 21 for preventing the long object from falling down is provided. . The loading platform 20 is connected to the pair of left and right lower link connecting portions 7 by front and rear mounting pins 31 and 32.
The illustrated drilling machine 1 is configured optimally for the work of staking a windproof net. For example, since shoots such as potatoes and tobacco are easily damaged by the wind, it is necessary to set up a windbreak net along the ridge, and the windbreak net makes holes at regular intervals along the ridge, and sets up a pile in the hole. A windbreak net is attached to the pile. Therefore, the long object 19 is, for example, a stake (post) for attaching a windbreak net.
[0014]
The carrier 20 can carry the long object 19 to be inserted into the hole formed by the auger 35 in parallel with the drilling operation, and can carry the long object 19 extracted from the hole. Is provided.
The drilling mechanism 6 is configured such that the lower end of the auger 35 is located above the carrier 20 when the auger 35 is raised to the uppermost position. Even when the carrier 20 is present, the auger 35 can be changed in the left-right position. It is.
As shown in FIGS. 4 and 5, the loading platform 20 is formed in a box shape having a bottom wall 51, a pair of left and right side walls 52, a front wall 53, and a rear wall 54. It is formed of a porous material having holes 22. The long object 19 to be inserted into the hole has a pointed shape at the lower end, and the hole 22 of the bottom wall 51 is engaged with the pointed end of the long object 19, and the long object 19 is displaced by vibration during movement. In addition, even if the soil attached to the long object 19 pulled out from the hole falls, the soil is prevented from falling to the ground through the hole 22 of the bottom wall 51 and remaining in the loading platform 20. .
[0015]
A reinforcing member 58 having a pair of left and right reinforcing rods 56 along the left and right edge portions of the bottom wall 51 and a connecting rod 57 connecting the pair of left and right reinforcing rods 56 is welded to the lower surface on the tip end side of the loading platform 20 by welding or the like. It is fixed to. Since the leading end of the bed 20 is grounded via the reinforcing member 58, it is possible to prevent the bottom wall 51 and the like of the bed 20 from being worn or damaged by grounding.
A pair of left and right stands 23 are provided on both left and right sides of the support frame 4 so as to project downward and be in a stand posture. The pair of left and right stands 23 is at a front lower end of the pair of left and right lower link connecting portions 7 by a pair of mounting pins 41 and 42, and has a stand posture protruding downward from the support frame 4 and protrudes rearward from the support frame 4. The posture can be freely changed between the folding posture. That is, the one (front side or upper side) mounting pin 41 is removed, the stand 23 is rotated about the other mounting pin 42, and the removed one mounting pin 41 is positioned above or forward of the mounting pin 42. The stand 23 can be held and fixed in the stand posture indicated by the dashed line and the folded posture indicated by the solid line by reinserting it into the mounting hole of the lower link connecting part 7 formed at the position.
[0016]
As shown in FIGS. 5 and 6, the lower link connecting portion 7 is provided with a front mounting hole 45 through which the front mounting pin 31 is inserted, and an upper rear mounting hole through which the rear mounting pin 32 is removably inserted. 46 and a lower rear mounting hole 47 are provided. A front mounting hole 48 into which the front mounting pin 31 is inserted is provided at a front portion of the pair of left and right side walls 52 of the loading platform 20 so as to correspond to the front mounting hole 45 of the lower link connecting portion 7, and the rear mounting pin 32. Are provided so as to correspond to the upper rear mounting hole 46 and the lower rear mounting hole 47 of the lower link connecting portion 7.
[0017]
The front mounting pin 31 is inserted into the front mounting hole 45 of the lower link connecting portion 7 and the front mounting hole 45 of the carrier 20, and the rear mounting pin 32 is mounted on the upper rear mounting hole 46 of the lower link connecting portion 7 and rear of the carrier 20. By being inserted into the hole 49, the loading platform 20 is fixed to the loading platform posture A that projects rearward in the horizontal direction from the support frame 4 by the front and rear mounting pins 31 and 32. Also, the rear mounting pin 32 is removed from the upper rear mounting hole 46 and the rear mounting hole 49, and the carrier 20 is swung downward around the front mounting pin 31 so that the upper rear mounting hole 46 of the lower link connecting portion 7 and the carrier 20 The loading platform 20 is inserted into the rear mounting hole 49 so that the front and rear mounting pins 31 and 32 allow the loading platform 20 to be tilted rearward and downward from the support frame 4 such that the leading end (rear end) of the loading platform 20 is grounded. It can be fixed to.
[0018]
Accordingly, the carrier 20 is pivotally supported by the front mounting pin 31 about its axis with respect to the support frame 4 side, and thereby the carrier posture A protrudes in the horizontal direction, and the carrier 20 inclines in the rear upward direction. The carrier 20 is attached to the stand posture B so that the posture can be freely changed, and the attachment / detachment of the rear attachment pin 32 causes the carrier 20 to stand in the horizontal direction, and the leading end of the carrier 20 to be grounded so that the support frame 4 becomes independent. The fixing means 50 for detachably fixing the carrier 20 to the carrier posture A and the stand posture B is provided with the rear mounting pin 32, the rear mounting hole 49, and the upper rear mounting hole 46. And a lower rear mounting hole 47. The support frame 4 is supported by the pair of left and right stands 23 and the carrier 20 in the stand posture B so as to be self-standing. When the drilling machine 1 is not used, the pair of left and right stands 23 in the stand posture is used. The support frame 4 is supported by the stand and the carrier 20 in the stand posture so as to be independent, and the drilling machine 1 is made independent.
[0019]
When the drilling machine 1 is self-standing by the stand 23 and the carrier 20 in the stand posture, the heights of the lower link connecting portion 7 and the top link connecting portion 8 become appropriate, and the three-point linking means 3 for the drilling machine 1 Easy attachment and detachment.
The guide means 21 for preventing a long object from falling is detachably connected to an upper end of the left and right vertical members 4A of the support frame 4 and detachably connected to a substantially L-shaped pipe 34 in a side view. And restricts the upper portion of the long object 19 from falling leftward and rightward.
[0020]
The drilling operation by the drilling machine 1 is performed by connecting the three-point link means 3 to the support frame 4 by approaching the tractor 2 while the drilling machine 1 is independently installed via the stand 23 and the carrier 20 in the stand posture B. Then, the three-point linking means 3 is raised by the hydraulic device 5, and the stand 23 is folded and arranged so as to straddle the ridge of the field.
After that, the drilling mechanism 6 is arranged behind the rear wheel 11 of the tractor 2 in the furrow groove, the support frame 4 is lowered via the three-point link means 3, and the height of the uppermost auger 35 is adjusted to the height of the furrow groove. Lower to a height of several cm from the bottom (height that does not hinder running). Although the support frame 4 can be inclined by the three-point link means 3, the auger 35 is generally arranged vertically.
[0021]
In this state, the hydraulic cylinder 17 is operated to lower the auger 35 along the guide member 18 while driving the auger 35 by driving the hydraulic motor 16. The auger 35 can form a hole having a depth of about 70 cm in the ground in the embodiment, for example.
After excavating one hole, the tractor 2 is advanced slightly, and the long object 19 is taken out from the bed 20 and inserted into the hole to stand up. The tractor 2 is advanced to a position at a required distance from the hole to form the next hole.
When the long object 19 is to be pulled out, the tractor 2 may be moved backward while the pulled long object 19 is placed on the carrier 20 in the carrier posture, contrary to the pile driving procedure.
[0022]
Note that the present invention is not limited to the above embodiment, and can be variously modified. For example, the drilling machine 1 may be used to form a hole for erecting a pillar of a tunnel house or a hole for planting a plant such as a yam. It may be fixedly attached to the side or both sides.
According to the above-described embodiment, the pair of left and right stands 23 is provided, and the support frame 4 is supported by the pair of left and right stands 23 and the carrier 20 in the stand posture B so as to be independent. Instead, the pair of left and right stands 23 is omitted, and for example, the lower end of the support frame 4 is grounded, and the lower end of the support frame and the carrier 20 in the stand posture B support the support frame 4 so as to be self-standing. It may be.
[0023]
【The invention's effect】
According to the present invention, by changing the posture of the carrier 20 to the stand posture B and fixing it, the carrier 20 can also be used as a stand for making the drilling machine 1 stand alone. Therefore, the drilling machine 1 can be reliably made independent by utilizing the bed 20 effectively. In addition, the components of the stand conventionally required to be provided on the side of the loading platform 20 or the like can be omitted, and the drilling machine 20 can be provided easily and inexpensively.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of the present invention.
FIG. 2 is a rear view of the same.
FIG. 3 is an overall side view of the same.
FIG. 4 is a perspective view of the same loading platform.
FIG. 5 is a sectional view taken along line AA of FIG. 1;
FIG. 6 is a sectional view taken along line BB of FIG. 1;
[Explanation of symbols]
REFERENCE SIGNS LIST 1 drilling machine 2 tractor 3 three-point link means 4 support frame 6 drilling mechanism 23 stand 31 front mounting pin 32 rear mounting pin 50 fixing means

Claims (3)

A support frame (4) is mounted on the tractor (2) via three-point link means (3), and the support frame (4) is provided with a drilling mechanism (6) having an auger (35) that can move up and down. In the punching machine provided with the loading platform (20), the loading platform (20) can freely change its attitude between a loading platform attitude A for placing a load and a stand attitude B for supporting the support frame (4) so as to stand on its own. A boring machine characterized by comprising a fixing means (50) provided for detachably fixing a carrier (20) to a carrier posture A and a stand posture B. Stands (23) are provided on both left and right sides of the support frame (4) and project downward to be in a stand posture, and the loading platform (20) is inclined in a stand posture B by inclining so that the front end thereof is in contact with the ground. The drilling machine according to claim 1, wherein the support frame (4) is supported by the stand (23) and the carrier (20) in the stand posture B so as to be self-standing. The loading platform (20) is supported by a mounting pin (31) around a pin axis of the support frame (4), and is supported by the mounting frame (4). The drilling machine according to claim 1 or 2, wherein the drilling machine is attached to a stand posture B inclined in a direction so that the posture can be freely changed.

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