JP2010168827A - Pile construction machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pile construction machine capable of improving work efficiency in a narrow construction field while being reducible in construction cost when constructing piles. <P>SOLUTION: The pile construction machine 1A mounted to an arm 2a of a base machine 2 includes: an auger driving device 10 supported to the tip part of the arm 2a; a casing 20 (an excavating member) mounted to a driving shaft 12 projected downward from the auger driving device 10; and a winch 30 mounted to the side face of the auger driving device 10. A suspension wire 32 wound on the winch 30 is hung at the side of the auger driving device 10. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a pile construction machine for pulling out a pile from the ground or burying a pile in the ground.

  As a pile construction machine (pile removal machine) for pulling out piles from the ground, an auger drive device supported by the tip of the arm of the base machine and a cylindrical shape attached to a drive shaft protruding downward from this auger drive device (See, for example, Patent Document 1).

  In this conventional pile construction machine, it is possible to excavate the periphery of the pile by rotating the casing around the axis and moving the casing into the ground so that the pile buried in the ground is inserted into the casing. it can. Then, the crane's suspension wire installed separately at the construction site is attached to the top of the pile, and the suspension wire is wound up to lift the pile from the ground.

  In addition, in a conventional pile construction machine, when attaching a casing to an auger drive device, a crane suspension wire is attached to the end of the casing that is tilted to the ground, and the suspension wire is wound up to cause the casing. Yes. Further, when removing the casing from the auger drive device, a crane suspension wire is attached to the upper end portion of the casing, and the suspension wire is fed out to tilt the casing while supporting the upper end portion of the casing.

JP 2003-155747 A (paragraphs 0023 to 0025, FIG. 3)

  In the conventional pile construction machine described above, when a pile is lifted or a casing is detached, a crane is separately installed in addition to the base machine, which increases the construction cost and makes it difficult to install the crane in a narrow construction site. Therefore, there is a problem that workability is low.

  Then, this invention makes it a subject to provide the pile construction machine which can improve the workability | operativity in a narrow construction site while solving the above-mentioned problem and reducing the construction cost at the time of constructing a pile.

  In order to solve the above-mentioned problems, the present invention provides a pile construction machine attached to an arm of a base machine, an auger drive device supported by a tip portion of the arm, and a drive shaft protruding downward from the auger drive device An excavation member attached to the auger drive device, and a winch attached to a side surface of the auger drive device, wherein a wire wound around the winch is suspended from a side of the auger drive device. It is said.

In this structure, excavation members, such as a casing, and a pile can be lifted with the winch attached to the side surface of the auger drive device. Therefore, in the pile construction machine of the present invention, it is not necessary to separately install a crane other than the base machine, so that the construction cost when constructing the pile can be reduced and workability in a narrow construction site can be improved.
In addition, since the winch and the auger driving device are integrated, it is not necessary to attach the winch to the base machine as a single unit, so that an existing work machine can be easily transferred to the base machine.
Moreover, since the winch and the auger drive device can be attached to and detached from the base machine in an integrated state, the pile construction machine can be easily attached to and detached from the base machine.

  In the above-described pile construction machine, the upper portion of the auger drive device is supported by a connection pin provided at the tip of the arm, and the connection pin is arranged in the lateral direction in the axial direction. In the auger drive device, the connection pin can be attached to the side surface of the connecting pin on the shaft end side.

  In this configuration, since the winch is disposed on the shaft end side of the connecting pin, when a tensile force due to the weight of the pile or the excavating member acts on the winch, a bending moment acts on the connecting pin in the axial direction. Become. Therefore, since no moment acts around the axis of the connecting pin, the pile construction machine can be prevented from rotating around the axis of the connecting pin, and the pile and the excavating member can be stably lifted.

  In order to solve the above-mentioned problem, as another configuration of the present invention, a pile construction machine attached to an arm of a base machine, which is supported by a tip portion of the arm and includes a connecting member in which an accommodation space is formed, An auger drive device attached to a lower portion of the connection member, a drilling member attached to a drive shaft protruding downward from the auger drive device, and a winch attached to the housing space of the connection member. The wire wound around the winch is hung around a guide pulley provided on a side surface of the connecting member, and is hung from a side of the auger drive device.

In this structure, excavation members, such as a casing, and a pile can be lifted with the winch attached to the connection member. Therefore, in the pile construction machine of the present invention, it is not necessary to separately install a crane other than the base machine, so that the construction cost when constructing the pile can be reduced and workability in a narrow construction site can be improved.
Further, the winch is integrated with the auger drive device via the connecting member, and it is not necessary to attach the winch alone to the base machine, so that the existing work machine can be easily transferred to the base machine.
Further, since the winch can be attached to and detached from the base machine in a state integrated with the auger drive device via the connecting member, the pile construction machine can be easily attached to and detached from the base machine.

  In the above-mentioned pile construction machine, the upper part of the connecting member is supported by a connecting pin provided at the tip of the arm, and the connecting pin is arranged in the lateral direction in the axial direction, and the guide pulley is In the connecting member, the connecting pin can be attached to the side surface on the shaft end side.

  In this configuration, since the guide pulley is arranged on the shaft end side of the connecting pin, when a tensile force due to the weight of the pile or the excavating member is applied to the suspension wire hung around the guide pulley, the connecting pin is applied to the connecting pin. The bending moment acts in the axial direction. Therefore, since no moment acts around the axis of the connecting pin, the pile construction machine can be prevented from rotating around the axis of the connecting pin, and the pile and the excavating member can be stably lifted.

  In the above pile construction machine, the upper part of the connecting member is supported by a connecting pin provided at the tip of the arm via the upper bracket, and the connecting member is It can be attached so as to be able to rotate around the direction axis.

  In this configuration, by rotating the connecting member with respect to the upper bracket, the orientation of the connecting member can be changed and the position where the suspension wire is suspended can be changed. Can be increased.

  In the above-described pile construction machine, the auger drive device includes a switching valve that connects the hydraulic path of the base machine to either the hydraulic path of the auger drive device or the hydraulic path of the winch so as to be switchable. Can be provided.

  In this configuration, by operating the switching valve, the hydraulic path of the base machine is connected to either the hydraulic path of the auger drive device or the hydraulic path of the winch, and the auger drive device or winch can be driven appropriately. it can. Therefore, an existing work machine in which only one system of hydraulic path is provided in the arm can be easily diverted to the base machine.

  According to the pile construction machine of this invention, while reducing the construction cost at the time of constructing a pile, the workability | operativity in a narrow construction site can be improved. In addition, the existing work machine can be easily transferred to the base machine, and the pile construction machine can be easily attached to and detached from the base machine.

It is the figure which showed the state which attached the pile construction machine of 1st embodiment to the base machine, (a) is a side view, (b) is II sectional drawing of (a). It is the figure which showed the pile construction machine of 1st embodiment, (a) is a side view, (b) is a front view. It is the block diagram which showed the hydraulic path | route of the pile construction machine of 1st embodiment. It is the figure which showed the procedure of the pile extraction by the pile construction machine of 1st embodiment, (a) is a side view when attaching a casing, (b) is a side view when pulling up a pile. In the pile construction machine of 1st embodiment, it is explanatory drawing when tensile force acts on the auger drive device. It is the figure which showed the pile construction machine of 2nd embodiment, (a) is a side view, (b) is a front view. It is the front view which showed the other structure of the pile construction machine of 2nd embodiment.

Next, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
In the following embodiments, a case where the present invention is applied to a pile construction machine for pulling out a pile embedded in the ground will be described as an example.
In the description of each embodiment, the same constituent elements are denoted by the same reference numerals, and redundant descriptions are omitted. Further, in the following description, the front / rear / left / right direction corresponds to the front / rear / left / right direction shown in each drawing.

[First embodiment]
As shown in FIG. 1A, the pile construction machine 1 </ b> A according to the first embodiment includes an auger drive device 10 that is supported by the tip of the arm 2 a of the base machine 2 and a casing attached to the auger drive device 10. 20 (excavation member) and a winch 30 attached to the side surface of the auger drive device 10.

  The base machine 2 is obtained by removing a bucket from an arm 2a of an existing hydraulic excavator, and includes a lower traveling body 2b that can travel by a crawler belt and an upper swing body 2c provided with a driver's seat. The arm 2a of the base machine 2 is provided with a hydraulic path 2e (see FIG. 3) for driving the bucket.

  The upper swing body 2c is pivotable in the horizontal direction with respect to the lower traveling body 2b, and the base end portion of the arm 2a is pivotally supported at the front portion of the upper swing body 2c. The arm 2a is provided with a plurality of rotation locations, and each part of the arm 2a is configured to bend at each rotation location.

  As shown in FIG. 2A, the auger drive device 10 includes a main body portion 11 that is an existing hydraulic motor, and a drive shaft 12 projects downward from the lower surface of the main body portion 11. In the auger drive device 10, the drive shaft 12 rotates about its axis when hydraulic oil is supplied to the hydraulic path 10 a (see FIG. 3) of the main body 11.

As shown in FIG. 2 (b), two plate-like support members 13, 13 are erected on the upper surface of the main body 11 at a predetermined interval in the left-right direction. , 13, the tip of the arm 2 a of the base machine 2 is disposed.
And the connection pin 14 with which the axial direction is arrange | positioned in the horizontal direction is inserted in the attachment hole provided in the front-end | tip part of two support members 13 and 13 and the arm 2a, and the upper part of the auger drive device 10 is inserted. Is connected to the tip of the arm 2a.

  As shown in FIG. 1A, the casing 20 is a cylindrical excavation member, and the axial direction is arranged in the vertical direction. As shown in FIG. 1B, the outer peripheral shape of the casing 20 is formed larger than the outer peripheral shape of the pile P embedded in the ground, and the pile P can be inserted into the hollow portion of the casing 20.

  At the center of the upper surface of the casing 20, as shown in FIG. 2A, there is provided an attachment portion to which the drive shaft 12 of the auger drive device 10 can be detachably attached. Therefore, when the drive shaft 12 is rotated around the axis while the casing 20 is attached to the drive shaft 12, the casing 20 also rotates around the axis.

  As shown in FIG. 1 (a), a plurality of excavating blades 21 are provided at the lower opening edge of the casing 20. As shown in FIG. Then, while rotating the casing 20 about the axis, the excavating blades 21 of the casing 20 are brought into contact with the ground so that the piles P embedded in the ground are inserted into the casing 20. By proceeding into the ground, the periphery of the pile P can be excavated (see FIG. 1B).

  The winch 30 is an existing hoisting device attached to the right side surface of the main body 11 of the auger drive device 10 as shown in FIG. 2 (b). The winch 30 has an axial direction as shown in FIG. 2 (a). A rotating drum 31 is provided in the front-rear direction.

  A suspension wire 32 is wound around the rotary drum 31, and the tip end side of the suspension wire 32 is drawn from the rotation drum 31. The rotating drum 31 rotates around its axis when hydraulic oil is supplied to a hydraulic path 30a (see FIG. 3) provided inside the winch 30, and the suspension wire 32 is fed or wound. A hook 34 is attached to the tip end (lower end) of the hanging wire 32.

As shown in FIG. 2 (b), two support members 33a and 33a (see FIG. 2 (a)) erected on the right side surface of the main body 11 have guides that are rotatable around a front-rear axis. A pulley 33 is supported.
The suspension wire 32 drawn from the rotary drum 31 is hung around a guide pulley 33, and the suspension wire 32 is guided by the guide pulley 32 and suspended from the side of the auger drive device 10. ing.

  The axis of the wire groove of the guide pulley 33 passes through the center position of the axial cross section of the connecting pin 14 in a side view of FIG. Therefore, the axis of the suspension wire 32 guided by the guide pulley 33 and hung to the side of the auger drive device 10 passes through the center position of the axial cross section of the connecting pin 14 in a side view of FIG. ing.

Next, the switching valve 40 provided in the auger drive device 10 will be described.
As shown in FIG. 3, in the main body 11 of the auger drive device 10, the hydraulic path 2 e of the base machine 2 is connected to either the hydraulic path 10 a of the auger drive apparatus 10 or the hydraulic path 30 a of the winch 30. A switching valve 40 is provided for switching.
The switching valve 40 uses an existing valve mechanism, and can be switched using an operation panel provided in the cab of the base machine 2.

  By operating the switching valve 40, hydraulic oil supplied to the hydraulic path 2e of the base machine 2 from the hydraulic pump 2d provided in the base machine 2 is used as the hydraulic path 10a of the auger drive device 10 or the hydraulic path 30a of the winch 30. By supplying to either of these, either the drive part 10b of the auger drive device 10 or the drive part 30b of the winch 30 can be driven appropriately.

Next, a procedure for pulling out the pile P embedded in the ground using the pile construction machine 1A of the first embodiment will be described.
First, as shown to Fig.4 (a), the base machine 2 is installed in a construction site in the state which attached the pile construction machine 1A to the front-end | tip part of the arm 2a.
Subsequently, one end of the support wire 32a is wound around the end portion of the casing 20 in a state of being tilted to the ground at the construction site. Further, the other end of the support wire 32 a is attached to the hook 34 of the suspension wire 32 suspended from the side of the auger drive device 10.
Then, the end portion of the casing 20 is raised by winding the suspension wire 32 with the winch 30 to raise the entire casing 20, and the upper end portion of the casing 20 is auger-driven as shown in FIG. The casing 20 is disposed above the pile P (see FIG. 1A) that is attached to the drive shaft 12 of the apparatus 10 and embedded in the ground.

  3 is operated to connect the hydraulic path 2e of the base machine 2 to the hydraulic path 10a of the auger drive apparatus 10, and the hydraulic oil supplied from the base machine 2 causes the auger drive apparatus 10 to The drive unit 10b is driven to rotate the casing 20 (see FIG. 2A) around the axis.

As shown in FIG. 1 (a), while rotating the casing 20 around the axis, the excavating blades 21 of the casing 20 are brought into contact with the ground so that the piles P are inserted into the casing 20. The casing 20 is advanced into the ground, and the periphery of the pile P is excavated.
And after making the lower end part of the casing 20 advance to the lower end part of the pile P and cutting the pile P from the ground, the pile construction machine 1A is raised and the casing 20 is pulled up from the ground.

One end of the support wire 32a (see FIG. 4A) is wound around the upper end portion of the casing 20 pulled up from the ground, and the other end of the support wire 32a is attached to the hook 34 of the suspension wire 32.
And after removing the upper end part of the casing 20 from the drive shaft 12 (refer Fig.2 (a)) of the auger drive device 10, the upper end part of the casing 20 is lowered | hung by extending | stretching the suspension wire 32 from the winch 30, and suspending it. The casing 20 is tilted while supporting the upper end portion of the casing 20 by the wire 32.

Further, after the casing 20 is placed on the ground, as shown in FIG. 4B, one end of the support wire 32a is wound around the upper end portion of the pile P, and the other end of the support wire 32a is hooked to the suspension wire 32. 34 is attached.
And by winding up the suspension wire 32 with the winch 30, the pile P is lifted and pulled up from the ground. At this time, since the pile P is cut off from the ground, the pulling force of the pile P is greatly reduced.

  According to the pile construction machine 1A of the first embodiment as described above, as shown in FIGS. 4A and 4B, the casing 20 and the pile P can be obtained by the winch 30 attached to the side surface of the auger drive device 10. Can be lifted. Therefore, since it is not necessary to separately install a crane other than the base machine 2, it is possible to reduce the construction cost when constructing the pile P and improve workability in a narrow construction site.

  Further, since the winch 30 and the auger drive device 10 are integrated, and it is not necessary to attach the winch 30 to the base machine 2 alone, an existing work machine can be easily transferred to the base machine.

  Moreover, since the winch 30 and the auger drive device 10 can be attached to and detached from the base machine 2 in an integrated state, the pile construction machine 1A can be easily attached to and detached from the base machine 2.

  Further, as shown in FIG. 5, the winch 30 is disposed on the shaft end side of the connecting pin 14, so that the tensile force due to the weight of the pile P and the casing 20 (see FIG. 4A) acts on the winch 30. Sometimes, a bending moment acts on the connecting pin 14 in the axial direction. Therefore, since no moment acts around the axis of the connecting pin 14, the pile construction machine 1A can be prevented from rotating around the axis of the connecting pin 14, and the pile P and the casing 20 can be lifted stably. .

  Further, by operating the switching valve 40 shown in FIG. 3, the hydraulic path 2e of the base machine 2 is connected to either the hydraulic path 10a of the auger driving apparatus 10 or the hydraulic path 30a of the winch 30, and the auger driving apparatus. 10 or winch 30 can be driven appropriately. Therefore, an existing work machine in which only one system of the hydraulic path 2e is provided in the arm 2a (see FIG. 1A) can be easily diverted to the base machine 2.

The first embodiment of the present invention has been described above, but the present invention is not limited to the above-described embodiment, and can be appropriately changed in design without departing from the spirit of the present invention.
For example, in the first embodiment, as shown in FIG. 4 (b), the pile construction machine 1 </ b> A is used as a pile removal machine for pulling out the pile P embedded in the ground, but the drive shaft of the auger drive device 10 is used. By attaching an auger screw for excavating the ground to 12 (see FIG. 2 (a)), the pile P can be used as a pile driving machine. In this configuration, after the excavation groove is constructed in the ground by the auger screw, the pile P lifted by the suspension wire 32 of the winch 30 is inserted into the excavation groove, whereby the pile P can be embedded in the ground.

[Second Embodiment]
Next, the pile construction machine of 2nd embodiment of this invention is demonstrated.
The pile construction machine 1B of the second embodiment shown in FIGS. 6A and 6B is the same as the pile construction machine 1A of the first embodiment except that the position of the winch 30 attached to the auger drive device 10 is different (FIG. 1). Since the configuration is the same as (a), the mounting structure of the winch 30 will be described in detail, and the description of the other configurations will be omitted.

  As shown in FIG. 6 (b), the pile construction machine 1B according to the second embodiment is supported by the distal end portion of the arm 2a of the base machine 2 and includes a connecting member 50 in which an accommodation space 50a is formed. The auger drive device 10 attached to the lower part of the member 50, the casing 20 attached to the drive shaft 12 projecting downward from the auger drive device 10, and the winch 30 attached in the accommodating space 50a of the connecting member 50 It is equipped with.

The connecting member 50 is a box-shaped member in which left and right side plates 53 and 53 are provided between an upper plate 51 and a lower plate 52, and an accommodation space 50a for accommodating the winch 30 is formed therein. ing.
The upper surface of the connecting member 50 is supported by the tip of the arm 2 a via the upper bracket 54, and the lower surface of the connecting member 50 supports the auger drive device 10 via the lower bracket 56.

The upper bracket 54 includes a substrate 54a that is detachably attached to the upper surface of the upper plate 51 of the connecting member 50 by a plurality of bolts, and two bodies that are erected on the upper surface of the substrate 54a at a predetermined interval in the left-right direction. Plate-like support members 54b, 54b, and the tip of the arm 2a is disposed between the two support members 54b, 54b.
And the upper surface of the connection member 50 is inserted by inserting the connection pin 55 in which the axial direction is arranged in the horizontal direction in the mounting holes provided in the two support members 54b and 54b and the tip of the arm 2a. The upper bracket 54 is connected to the tip of the arm 2a.

As shown in FIG. 6A, the lower bracket 56 includes a substrate 56a that is detachably attached to the lower surface of the lower plate 52 of the connecting member 50 by a plurality of bolts, and a predetermined interval in the front-rear direction on the lower surface of the substrate 56a. Two plate-like support members 56b and 56b that are erected apart from each other, and the two support members 56b and 56b are erected on the upper surface of the auger drive device 10. 13 and 13 are arranged.
And the connecting pin 57 with which the axial direction is arrange | positioned in the front-back lateral direction is inserted in each support member 56b, 56b of the connection member 50, and each support member 13 and 13 of the auger drive device 10. Thus, the auger drive device 10 is coupled to the lower surface of the coupling member 50 via the lower bracket 56.

  Further, as shown in FIG. 6B, a winch 30 having a rotating drum 31 whose axial direction is disposed in the front-rear direction is accommodated in the accommodating space 50a of the connecting member 50. It is attached to the upper surface of the plate 52.

Two brackets 58a and 58a (see FIG. 6A) erected on the right side surface of the right side plate 53 of the connecting member 50 support a guide pulley 58 that is rotatable about a longitudinal axis. ing.
The suspension wire 32 drawn from the rotary drum 31 is hung around a guide pulley 58, and the suspension wire 32 is guided by the guide pulley 58 and suspended from the side of the auger drive device 10. ing.

  Further, the axis of the wire groove of the guide pulley 58 passes through the center position of the axial cross section of the connecting pin 55 that connects the connecting member 50 and the arm 2a in a side view of FIG. Therefore, the axis of the suspension wire 32 guided by the guide pulley 58 and hung to the side of the auger drive device 10 passes through the center position of the axial cross section of the connecting pin 55 in a side view of FIG. ing.

  The upper and lower surfaces of the connecting member 50 are detachably attached to the upper bracket 54 and the lower bracket 56 by a plurality of bolts. Therefore, after removing the connecting member 50 from the upper bracket 54 and the lower bracket 56 and rotating the connecting member 50 about the vertical axis, the connecting member 50 is attached to the upper bracket 54 and the lower bracket 56 again. The direction of the connecting member 50 with respect to the upper bracket 54 and the lower bracket 56 can be changed. Incidentally, in the second embodiment, the connecting member 50 can be rotated at intervals of 90 degrees.

  According to the pile construction machine 1B of the second embodiment as described above, as shown in FIGS. 6 (a) and 6 (b), the winch 30 attached to the auger drive device 10 via the connecting member 50 is used for the casing. And stakes can be lifted. Therefore, since it is not necessary to separately install a crane other than the base machine 2, the construction cost when constructing the pile can be reduced, and the workability in a narrow construction site can be improved.

  In addition, the winch 30 is integrated with the auger drive device 10 via the connecting member 50, and it is not necessary to attach the winch 30 to the base machine 2 as a single unit. Therefore, the existing work machine can be easily transferred to the base machine. Can do.

  Further, the winch 30 can be attached to and detached from the base machine 2 in a state of being integrated with the auger drive device 10 via the connecting member 50, so that the pile construction machine 1 </ b> B can be easily attached to and detached from the base machine 2. it can.

  Moreover, since the guide pulley 58 around which the suspension wire 32 is wound is disposed on the shaft end side of the connection pin 55 that connects the connection member 50 and the arm 2a, the suspension wire 32 depends on the weight of the pile or casing. When a tensile force is applied, a bending moment acts on the connecting pin 55 in the axial direction. Therefore, since no moment acts around the axis of the connecting pin 55, the pile construction machine 1B can be prevented from rotating around the axis of the connecting pin 55, and the pile and the casing can be lifted stably.

  In the pile construction machine 1B of the second embodiment, the hydraulic path of the base machine 2 is connected to the hydraulic pressure of the auger drive device 10 in the same manner as the pile construction machine 1A of the first embodiment (see FIG. 1A). A switching valve 40 is provided that is switchably connected to either the path or the hydraulic path of the winch 30. Then, by operating the switching valve 40, the hydraulic path of the base machine 2 is connected to either the hydraulic path of the auger drive apparatus 10 or the hydraulic path of the winch 30, and the auger drive apparatus 10 or the winch 30 is appropriately connected. It can be driven. Therefore, an existing work machine having only one hydraulic path 2e in the arm 2a can be easily diverted to the base machine 2.

Although the second embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and can be appropriately changed in design without departing from the spirit of the present invention.
For example, in the second embodiment, as shown in FIGS. 6A and 6B, the connecting member 50 and the upper bracket 54 and the lower bracket 56 are connected by a plurality of bolts, but as shown in FIG. The connecting member 50 and the upper bracket 54 are connected by an upper rotating shaft 59a whose axial direction is arranged in the vertical direction, and the connecting member 50 and the lower bracket 56 are connected by a lower rotating shaft 59b whose axial direction is arranged in the vertical direction. Can be linked by.

In this configuration, the connecting member 50 is connected to the upper bracket 54 so as to be rotatable about the upper rotating shaft 59a, and the connecting member 50 is connected to the lower bracket 56 about the lower rotating shaft 59b. It is connected rotatably.
Therefore, the direction of the connecting member 50 can be easily changed without removing the connecting member 50 from the upper bracket 54 and the lower bracket 56.
In addition, after setting the direction of the connection member 50, the connection member 50, the upper bracket 54, and the lower bracket 56 are each connected by a fixing pin, thereby positioning the connection member 50 in a predetermined direction.

1A pile construction machine (first embodiment)
1B pile construction machine (second embodiment)
DESCRIPTION OF SYMBOLS 2 Base machine 2a Arm 2e Hydraulic path of base machine 10 Auger drive device 10a Hydraulic path of auger drive device 11 Main body part 12 Drive shaft 14 Connection pin (1st embodiment)
20 Casing 30 Winch 30a Hydraulic path of winch 32 Suspension wire 33 Guide pulley (first embodiment)
34 Hook 40 Switching valve 50 Connection member 50a Accommodating space 54 Upper bracket 55 Connection pin (second embodiment)
56 Lower bracket 57 Connecting pin (second embodiment)
58 Guide pulley (second embodiment)
P pile

Claims (6)

A pile construction machine attached to the arm of the base machine,
An auger drive supported by the tip of the arm;
A drilling member attached to a drive shaft projecting downward from the auger drive device;
A winch attached to a side surface of the auger drive device,
A pile construction machine, wherein a wire wound around the winch is suspended from a side of the auger drive device. The upper part of the auger drive device is supported by a connecting pin provided at the tip of the arm,
The connecting pin is arranged in the lateral direction in the axial direction,
2. The pile construction machine according to claim 1, wherein the winch is attached to a side surface of the connecting pin on the shaft end side in the auger drive device. A pile construction machine attached to the arm of the base machine,
A connecting member supported at the tip of the arm and having a housing space formed therein;
An auger drive device attached to the lower part of the connecting member;
A drilling member attached to a drive shaft projecting downward from the auger drive device;
A winch attached in the accommodation space of the connecting member,
A pile construction machine characterized in that the wire wound around the winch is hung around a guide pulley provided on a side surface of the connecting member and is hung from a side of the auger drive device. The upper part of the connecting member is supported by a connecting pin provided at the tip of the arm,
The connecting pin is arranged in the lateral direction in the axial direction,
The pile construction machine according to claim 3, wherein the guide pulley is attached to a side surface of the connecting pin on the shaft end side of the connecting member. The upper part of the connecting member is supported by a connecting pin provided at the tip of the arm via an upper bracket,
The pile construction machine according to claim 3, wherein the connecting member is attached to the upper bracket in a state of being rotatable about a vertical axis. In the auger drive device,
2. A switching valve is provided to connect the hydraulic path of the base machine to either the hydraulic path of the auger drive device or the hydraulic path of the winch so as to be switchable. The pile construction machine as described in any one of claim | item 5.

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