JP3221669U - Pile driving attachment and pile driver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pile driving attachment and a pile driving machine capable of accurately and vertically driving a pile safely and efficiently by a small number of people. SOLUTION: A pile driving attachment 10 mounted on a tip side of a boom 12 of a construction vehicle 11 has a front and rear rotation horizontal shaft 20 and a left and right rotation horizontal shaft 21, and of the boom 12 via the front and rear rotation horizontal shaft 20. The mounting portion 22 rotatably supported on the front side, the elevating guide cell 24 rotatably supported by the mounting portion 22 via the horizontal rotational horizontal shaft 21, and the longitudinal and lateral directions of the elevating guide cell 24 An angle sensor for detecting a rotation angle, a positioning pin 29 driven into the ground at the lower end side of the vertically moving guide cell 24, a pile driving force generating unit 30 raised and lowered along the movable guide cell 24 by the lifting unit 50; A chuck portion 41 connected to the pile driving force generating means 30 for detachably holding the head of the pile 13 and a lower guy guiding the pile 13 driven into the ground below the elevation guide cell 24 And a 55. [Selected figure] Figure 2

Description

The present invention relates to a pile driving attachment and a pile driving machine capable of efficiently performing a pile driving operation using a construction vehicle (general-purpose heavy machine) such as an existing hydraulic shovel (backhoe).

Conventional piling work is mainly performed using a hydraulic breaker mounted at the tip of a boom or arm of a construction vehicle such as a hydraulic shovel. In particular, construction of a solar power generation system has been actively performed in recent years, and when installing a gantry for laying a solar cell panel (solar panel), a large number of piles serving as the pillars are required. Therefore, various types of piling machines (pile driving devices) have been proposed in order to perform the piling work efficiently in a short time.
For example, in Patent Document 1, instead of the normal chisel (rod for striking) of the hydraulic breaker, a press-fit chisel having a spherical part is attached to the tip of the shaft part and attached so as to surround the spherical part of the press-fit chisel. At the tip of the impact head, a recess is formed for detachably fitting and supporting the upper end of the pile along the axial direction of the pile.

JP, 2013-77764, A

However, in Patent Document 1, since the upper end of the pile is only detachably fitted to the recess formed in the tip end of the striking head, the pile does not have a means for holding the upper end of the pile. It is necessary to carry out work while supporting the work vertically by hand. In such an operation, since the pile is long and heavy, the burden on the operator is large and labor saving and construction are lacking. Moreover, since confirmation of the vertical accuracy of a pile is visual judgment by the operator, the variation is large and the accuracy is lacking. Furthermore, since the driver of the construction vehicle performs the operation with a hand signal from the worker supporting the pile, it requires a wealth of experience and skill, and the operation is extremely lacking. In addition, the worker must support the pile directly below the hydraulic breaker, and in particular, since the installation site of the mount on which the solar cell panel is installed has many slopes, the scaffolding is bad and the safety is lacking.
Next, in Patent Document 1, since the chisel for press-in and the striking head are connected via the spherical portion, the angle of the chisel for press-in is inclined from the vertical direction when the boom and the arm are operated to perform a pile operation. Even in this case, the striking head can be tilted to correct the pile driving direction to be vertical. However, the tiltable range of the striking head (pile) is limited to about 5 degrees all around the central axis. Moreover, the hydraulic breaker mounted with the press-fit chisel to which the striking head is connected in a tiltable manner can be rotated only in the front-rear direction of the traveling carriage by driving the tilt mechanism at the tip of the arm and raising and lowering the boom and arm And can not rotate in the left and right direction. That is, the main angle (inclination) adjustment in the driving direction of the pile in Patent Document 1 is only in the uniaxial direction, and lacks versatility. In particular, when the mount on which the solar cell panel is installed is installed on an inclined surface and the surface of the solar cell panel is inclined along the inclined surface, it is necessary to vertically drive a pile for supporting the mount. In this case, the front and back direction of the traveling carriage must be matched with the direction of inclination of the inclined surface, and the construction is remarkably lacking.
The present invention has been made in view of the above circumstances, and a small number of people can safely and efficiently perform piling work using a construction vehicle such as a hydraulic excavator, and in particular, it is possible to pile even on inclined surfaces. It is an object of the present invention to provide a piling attachment and a piling machine which are excellent in labor saving, operability, and versatility, which can accurately drive vertically.

The pile driving attachment according to the first aspect of the present invention is a pile driving attachment that is mounted on a tip side of a boom of a construction vehicle and used for driving a pile.
It has a front and rear rotation horizontal axis orthogonal to the longitudinal direction of the boom, and a left and right rotation horizontal axis orthogonal to the front and rear rotation horizontal axis, and is rotatably supported on the tip side of the boom via the front and rear rotation horizontal axis. Mounting portion, a long elevating guide cell rotatably held by the mounting portion via the horizontal rotational horizontal axis, and the vertical movement around the longitudinal horizontal rotational axis attached to the mounting portion An angle sensor for detecting the longitudinal rotation angle of the guide cell and the lateral rotation angle of the elevation guide cell around the horizontal rotational horizontal axis, and attached to the lower end of the elevation guide cell, the longitudinal length of the elevation guide cell A positioning pin which is driven into the ground with its direction aligned in the vertical direction to fix the lower end side of the elevating guide cell, and a pile driving force slidably held along the longitudinal direction of the elevating guide cell Raw means, raising and lowering means provided on the raising and lowering guide cell to raise and lower the pile driving force generating means along the longitudinal direction of the raising and lowering guide cell, and the pile driving force generating means And a lower guide for guiding the pile driven into the ground below the elevator guide cell.

In the pile driving attachment according to the first aspect of the present invention, it is preferable that the mounting portion has an arm cylinder connecting portion to which a tip side of an arm cylinder whose base side is connected to an upper base side of the boom is connected.

In the pile driving attachment according to the first aspect, the mounting portion is a cylinder base side connecting portion to which a base side of a left and right angle adjustment cylinder that rotates the elevating guide cell in the left and right direction around the left and right rotation horizontal axis is connected. It is preferable that the elevating guide cell has a cylinder front end connecting portion to which the front end of the left and right angle adjusting cylinder is connected.

In the pile driving attachment according to the first aspect, the pile driving thrust generating means slides on a cylinder, a piston which reciprocates in the cylinder along the longitudinal direction of the elevating guide cell, and a tip side of the cylinder. And a sliding shaft that is held by the piston so as to be held and pressed by the piston, the chuck portion is connected to the tip side of the sliding shaft, and the sliding shaft, together with the chuck portion and the pile, It is preferable that the cylinder be rotatable about its axial center.

In the pile driving attachment according to the first aspect, the lower guide is formed with a base portion fixed to the elevating guide cell and an engaging portion engaged with the outer periphery of the pile, and attached to the base portion. It is also possible to have a rotary unit rotatable around the axis of the cylinder together with the stake.

In the pile driving attachment according to the first aspect, the elevating means is a drive-side sprocket rotatably attached to the upper end side of the elevating guide cell, and a follower rotatably attached to the lower end side of the elevating guide cell. It has a side sprocket, a drive motor connected to the drive side sprocket, and a chain wound between the drive side sprocket and the driven side sprocket and connected to the outside of the pile driving force generating means. preferable.

In the pile driving machine according to the second aspect of the present invention, the pile driving attachment according to the first aspect of the present invention is mounted on the tip side of the boom of the construction vehicle.

In the pile driving machine according to the second aspect, an angle indicator for displaying the longitudinal rotation angle and the lateral rotation angle detected by the angle sensor is attached to a driver's seat of the construction vehicle. Is preferred.

In the pile driving machine according to the second aspect, the elevation guide cell is located on the front side of the driver's seat, and the pile held by the chuck and the driving position of the pile can be viewed from the driver's seat preferable.

According to the pile driving attachment pertaining to the first aspect, the longitudinal direction of the elevation guide cell can be made to coincide with the vertical direction by adjusting the longitudinal rotation angle and the lateral rotation angle of the elevation guide cell, On the other hand, the pile can be driven in the vertical direction with certainty. At this time, since the lower end side of the elevation guide cell can be fixed by the positioning pin, if the angle of the elevation guide cell is first adjusted, the elevation guide cell (pile) will not be inclined during driving of the pile, Excellent in construction. In addition, since the head of the pile can be held by the chuck unit connected to the pile driving force generating means, the worker does not need to support the pile by hand, which is excellent in labor saving and safety. By adding the thrust of the lifting and lowering means to the thrust of the pile driving thrust generating means, a large thrust can be generated and pile driving can be performed efficiently in a short time. Furthermore, since the lower guide for guiding the pile driven into the ground below the lift guide cell is provided, the vertical posture of the pile can be maintained, and the occurrence of inclination and twist can be prevented.

In the pile driving attachment according to the first aspect of the present invention, in the case where the mounting portion has an arm cylinder connection portion to which the tip side of the arm cylinder connected to the base side upper side of the boom is connected, the tip of the boom of the existing construction vehicle The side can be easily connected to the mounting portion, and the mounting operation of the pile driving attachment is excellent. In addition, since the elevating guide cell can be rotated in the longitudinal direction about the longitudinal horizontal axis by using the existing arm cylinder of the construction vehicle, it is not necessary to separately prepare a drive unit for longitudinal rotation, which is cost-effective. Can be reduced.

In the pile driving attachment according to the first aspect of the present invention, the mounting portion has a cylinder base side connection portion to which the base side of the left and right angle adjustment cylinder for rotating the elevating guide cell in the left and right direction about the left and right rotation horizontal axis is connected. When the elevating guide cell has a cylinder tip side connecting portion to which the tip side of the left and right angle adjustment cylinder is connected, the mounting portion and the elevating guide cell are easily connected by the left and right angle adjusting cylinder to move the elevating guide cell left and right It can be rotated in the left and right direction around the rotational horizontal axis.

In the pile driving attachment according to the first aspect, the pile driving thrust generating means is slidably held on the cylinder, a piston that reciprocates along the longitudinal direction of the elevating guide cell in the cylinder, and a tip side of the cylinder. The chuck has a sliding shaft pressed and slid by a piston, and the chuck portion is connected to the tip side of the sliding shaft, and the sliding shaft is rotatable around the axis of the cylinder together with the chuck and the pile. In some cases, the pile can be rotated about the axis of the cylinder while holding the head of the pile at the chuck portion, so when using a channel steel or square pipe as a pile, And the direction of the left-right direction can be easily matched with predetermined direction, and it is excellent in construction property.

In the pile driving attachment according to the first aspect of the present invention, the lower guide is formed with a base portion fixed to the elevating guide cell and an engaging portion engaging with the outer periphery of the pile, and attached to the base portion. When having a rotating part that can rotate around the axis of the cylinder, rotate the pile using channel steel or square pipe etc. about the axis of the cylinder to adjust the direction of the pile in the longitudinal and lateral directions Since the rotation part can be rotated by following the rotation of the pile when doing so, the pile driven into the ground can be reliably guided by the lower guide, and the vertical posture of the pile can be maintained. And the occurrence of twist can be prevented.

In the pile driving attachment according to the first aspect of the present invention, the lifting and lowering means includes a drive side sprocket rotatably mounted on the upper end side of the lifting and lowering guide cell, and a driven side sprocket rotatably mounted on the lower end side of the lifting and lowering guide cell When the drive motor is coupled with the drive motor connected to the drive sprocket and the chain wound between the drive sprocket and the driven sprocket and connected to the outside of the pile driving force generating means, the pile of the pile is produced by the rotation of the drive motor. The striking force generating means can be raised and lowered along the longitudinal direction of the raising and lowering guide cell, and the rotary driving force of the drive motor can be added to the thrust of the pile driving to perform the pile driving operation efficiently.

According to the pile driver according to the second invention, since the pile driving attachment according to the first invention is attached to the tip side of the boom of the construction vehicle, the pile driving work can be performed at low cost using the existing construction vehicle Efficiency and labor savings can be achieved.

In the pile driving machine according to the second aspect of the present invention, when an angle indicator that displays the longitudinal rotation angle and the lateral rotation angle detected by the angle sensor is attached to the driver's seat of the construction vehicle, the driver is angled By operating the construction vehicle while checking the display gauge, it is possible to easily adjust the rotation angle of the elevation guide cell in the front-rear direction and the left-right direction, and to drive the pile vertically, saving labor, operability, And it is excellent in the accuracy of work.

In the pile driving machine according to the second aspect, when the elevation guide cell is located on the front side of the driver's seat and the driving positions of the pile held by the chuck portion can be seen from the driver's seat, the driver The operation (operation) can be performed while visually checking the driving positions of the piles and the piles, without relying on instructions from the operator, and the labor saving, the operability, and the safety are excellent.

It is a front view showing a piling machine using a piling attachment according to an embodiment of the present invention. It is a side view showing the same pile driver. It is an AA line end elevation of FIG. It is a BB line end view of FIG. It is a top view which shows the lower side guide of the same pile driving attachment.

Next, embodiments of the present invention will be described with reference to the attached drawings for understanding of the present invention.
As shown in FIGS. 1 to 5, a pile driving attachment 10 according to an embodiment of the present invention is mounted on the tip of a boom 12 of a construction vehicle 11 such as an existing hydraulic shovel and used for driving a pile 13. It is a thing. As the construction vehicle 11, a traveling carriage 14 traveling by a crawler or the like, a swing table 15 swingably provided on the traveling carriage 14, and a driver's seat (cabin) 16 provided together with the boom 12 on the swing table 15. The one having is preferably used. For example, when the construction vehicle 11 is a hydraulic shovel, a bucket (not shown) is connected to the tip of the boom 12 via an arm (not shown), and the boom 12 and the arm are respectively in the front-rear direction of the traveling carriage 11 The boom cylinder 17 (FIGS. 1 and 2) and the arm cylinder 18 (FIG. 2) are provided. The construction vehicle 11 can be used as a piling machine 19 by attaching the piling attachment 10 to the tip of the boom 12 instead of the arm and the bucket.

Hereinafter, the details of the stake driving attachment 10 will be described.
First, the pile driving attachment 10 has a front-rear rotational horizontal axis 20 (FIG. 2) orthogonal to the longitudinal direction of the boom 12 and a left-right rotational horizontal axis 21 (FIGS. 1 and 2) orthogonal to the front-rear rotational horizontal axis 20. And a mounting portion 22 rotatably supported on the tip side of the boom 12 via the front and rear rotational horizontal shaft 20. The mounting portion 22 also has an arm cylinder connecting portion 23 (FIG. 2) to which the tip side of the arm cylinder 18 whose base side is connected to the upper base side of the boom 12 is connected. The pile driving attachment 10 is provided with a long elevating guide cell 24 rotatably held by the mounting portion 22 via the left and right rotation horizontal shaft 21. Furthermore, the mounting portion 22 has a cylinder base side connection portion 26 (FIG. 1) to which the base side of the left and right angle adjustment cylinder 25 for rotating the elevating guide cell 24 in the left and right direction around the left and right rotation horizontal shaft 21 is connected. The elevating guide cell 24 has a cylinder front end connecting portion 27 (FIG. 1, FIG. 2) to which the front end of the left and right angle adjustment cylinder 25 is connected.

As described above, the mounting portion 22 can be easily mounted on the tip side of the boom 12 and connected to the arm cylinder 18, and the mounting portion 22 and the elevating guide cell 24 can be connected by the left-right angle adjustment cylinder 25. The arm cylinder 18 and the left and right angle adjustment cylinder 25 are expanded and contracted to rotate the vertical guide cell 24 about the front and rear rotation horizontal axis 20 (for example, movable range of ± 30 degrees) and the left and right rotation horizontal axis 21 Can be rotated in the left-right direction (for example, a movable range of. +-. 15 degrees). At this time, as shown in FIG. 1 and FIG. 2, the mounting portion 22 includes the elevation guide cell with the vertical direction rotation angle of the elevation guide cell 24 centering on the longitudinal rotation horizontal axis 20 and the elevation guide cell centering with the horizontal rotation horizontal axis 21 The angle sensor 28 for detecting the rotational angle of the lateral direction 24 is attached, and the vertical direction of the elevating guide cell 24 and the pile 13 even when the construction vehicle 11 is inclined (the installation surface of the pile 13 is an inclined surface) Can be confirmed.
When the construction vehicle 11 is a hydraulic shovel, the bucket cylinder that rotatably connects the bucket to the arm can be removed and used as a left-right angle adjustment cylinder, so there is no need to prepare a cylinder separately .

Next, the pile driving attachment 10 is attached to the lower end portion of the elevating guide cell 24, and is driven into the ground with the longitudinal direction of the elevating guide cell 24 aligned in the vertical direction, and the lower end side of the elevating guide cell 24 is It has a positioning pin 29 to be fixed. Thus, the elevating guide cell 24 can be prevented from being inclined or twisted during the driving of the pile 13, and the pile 13 can be accurately driven in the vertical direction. The length and thickness of the positioning pin 29 can be selected as appropriate.

Next, the pile driving attachment 10 has a pile driving thrust generating means 30 slidably held along the longitudinal direction of the elevation guide cell 24. A sliding portion 31 is attached to the outside of the pile driving force generating means 30, and a guide portion 32 is provided along the longitudinal direction on the side portion (here, the left side) of the elevating guide cell 24. Then, the sliding portion 31 has the engagement grooves 33 (FIG. 1) engaged with both widthwise end portions of the guide portion 32 so that the pile driving thrust generating means 30 extends in the longitudinal direction of the elevating guide cell 24. It is possible to slide. In addition, although a hydraulic breaker (for example, 5 to 10 ton class) is suitably used as the pile driving thrust generation means 30, it is not limited to this, generating vibration (thrust) and driving in the pile 13 It should be possible.

As shown in FIG. 3, the pile driving force generating means 30 slides on the cylinder 35 and a piston 36 that hydraulically reciprocates along the longitudinal direction of the elevating guide cell 24 in the cylinder 35 and the tip side of the cylinder 35. And a sliding shaft 37 which can be held and pressed by the piston 36 to slide. A chuck for detachably holding the head of the pile 13 via the flange portion 38 formed on the tip side of the sliding shaft 37, as shown in FIGS. The part 41 is connected. As shown in FIG. 4, the chuck portion 41 has a receiving bracket 42 formed in a substantially U shape in plan view, and presses the pile 13 against the receiving bracket 42 in the horizontal direction by the chuck cylinder 43. Can be fixed. In the present embodiment, the left and right angle adjustment cylinder 25 and the chuck cylinder 43 are both hydraulic cylinders, and the hydraulic source of the construction vehicle 11 is used to appropriately switch these two hydraulic circuits with solenoid valves. It worked.

A small diameter portion 45 is provided midway in the longitudinal direction of the sliding shaft 37, and a stepped portion 46 is formed over the entire circumference between the outer periphery of the sliding shaft 37 and the outer periphery of the small diameter portion 45. . In the cylinder 35, a stopper pin 47, which is orthogonal to the longitudinal direction of the cylinder 35 and engages with the step 46, is attached. Although the sliding range (stroke) of the sliding shaft 37 is regulated by the stopper pin 47, the sliding shaft 37 can rotate around the axial center of the cylinder 35 together with the chuck portion 41 and the pile 13. As shown in FIG. 4, for example, when using a channel steel as the pile 13, it is necessary to adjust the front-back and left-right direction of the pile 13 to a predetermined direction (perform angle adjustment in a horizontal plane) In this way, when the sliding shaft 37 is rotatable around the axis of the cylinder 35 together with the chuck portion 41 and the pile 13, the head of the pile 13 is held by the chuck portion 41. Angle adjustment can be easily performed.

Next, the stake driving attachment 10 has lifting and lowering means 50 provided in the lifting and lowering guide cell 24 to raise and lower the stake driving force generating means 30 along the longitudinal direction of the lifting and lowering guide cell 24. The elevating means 50 includes a drive-side sprocket 51 (FIG. 1) rotatably mounted on the upper end side of the elevating guide cell 24 and a driven-side sprocket 52 rotatably mounted on the lower end side of the elevating guide cell 24 (see FIG. 1), the drive motor 53 (FIG. 2) connected to the drive side sprocket 51, and the outer side of the pile driving force generating means 30 (sliding portion 31) wound between the drive side sprocket 51 and the driven side sprocket 52 And a chain 54 (FIG. 1) connected thereto. Therefore, by rotating the drive motor 53 forward and reverse, the pile driving thrust generating means 30 can be raised and lowered along the longitudinal direction of the raising and lowering guide cell 24. Then, at the time of pile driving, a thrust (for example, 3 to 5 ton) generated by lowering the pile driving thrust generating means 30 by the raising and lowering means 50 is added to the thrust of the pile driving to efficiently perform the piling work. It can be carried out. Also, when the ground into which the pile 13 is driven is soft or when starting to drive the pile 13, the pile driving force generation means 30 is not driven, and the pile driving force generation means 30 is driven only by lowering the pile driving force generation means 30. Can. A hydraulic motor is suitably used as the drive motor 53.

Next, as shown in FIGS. 1, 2 and 5, the elevating guide cell 24 is provided with a lower guide 55 slidably holding the outer periphery of the pile 13 below the elevating guide cell 24. The lower guide has a base portion 56 fixed to the elevating guide cell 24, and the base portion 56 is formed with an arc-shaped notch 57. Further, an arc-shaped guide member 58 is provided on the base portion 56 along the outside of the notch 57. The rotating portion 59 placed on the base portion 56 inside the guide member 58 has a notch-shaped (U-shaped) engaging portion 60 engaged with the outer periphery of the pile 13. At the same time, it is possible to rotate about the axial center of the cylinder 35 of the pile driving force generation means 30. Thereby, as described above, when the pile 13 is rotated to perform angle adjustment, the rotation portion 59 can be rotated following the rotation of the pile 13, so the pile 13 driven into the ground can be By guiding the lower guide 55, the vertical posture of the pile 13 can be maintained, and the occurrence of inclination and twist can be prevented. Further, as shown in FIG. 5, one end side of the lower guide 55 is rotatably supported in the vertical plane by the rotation support portion 61 on the rotation portion 59, and the opening side of the engagement portion 60 is opened and closed. It is preferable to have an abutment piece 62 that abuts on the end face of the pile 13. The pile 13 can be easily engaged with the engaging portion 60 by rotating the abutting piece 62 upward to open the engaging portion 60, and the engaging piece 62 is rotated downward to engage the engaging portion If 60 is closed, the contact piece 62 can be brought into contact with the end face of the pile 13 to hold the pile 13 in the engagement portion 60, and the effect of preventing the pile 13 from tilting and twisting can be enhanced.

Next, on the driver's seat 16 of the construction vehicle 11, as shown in FIG. 2, an angle display for displaying the longitudinal rotation angle and the lateral rotation angle of the elevating guide cell 24 detected by the angle sensor 28 (FIG. 1) A total of 64 are attached. The driver operates the construction vehicle 11 (the boom cylinder 17, the arm cylinder 18, and the left and right angle adjustment cylinder 25) while checking the angle display meter 64 to set the rotation angles of the elevating guide cell 24 in the front and rear direction and the left and right direction. The pile 13 can be reliably driven vertically by adjusting easily. At this time, as shown in FIG. 1, the elevating guide cell 24 is located on the front side of the driver's seat 16, and the driving positions of the pile 13 and the pile 13 held by the chuck portion 41 can be viewed from the driver's seat 16. The operability and labor saving can be improved without having to rely on the instructions of other workers.

As mentioned above, although embodiment of this invention was described, this invention is not limited to the above-mentioned form, The change of the conditions which do not deviate from a summary, etc. are all the application scope of this invention.
For example, the structure of the chuck portion can be appropriately selected according to the shape of the pile used. Moreover, the lower guide may also be able to guide the pile on the lower side of the elevation guide cell, and the structure thereof can be selected as appropriate without being limited to the above embodiment. In the above embodiment, the sliding shaft of the pile driving thrust generating means is configured to be rotatable about the axis of the cylinder together with the chuck portion and the pile, but when using a round pipe as a pile, it may be in a horizontal plane The sliding shaft may not be able to rotate because it is not necessary to adjust the angle of.

10: pile driving attachment, 11: construction vehicle, 12: boom, 13: pile, 14: traveling carriage, 15: swivel, 16: driver's seat (cabin), 17: boom cylinder, 18: arm cylinder, 19: pile Driving machine, 20: front and rear rotation horizontal axis, 21: left and right rotation horizontal axis, 22: mounting portion, 23: arm cylinder connecting portion, 24: elevation guide cell, 25: left and right angle adjusting cylinder, 26: cylinder base side connecting portion, 27: cylinder front side connecting portion, 28: angle sensor, 29: positioning pin, 30: pile driving force generating means, 31: sliding portion, 32: guide portion, 33: engagement groove, 35: cylinder, 36: piston , 37: sliding shaft, 38: flange portion, 41: chuck portion, 42: receiving bracket, 43: cylinder for chuck, 45: small diameter portion, 46: step portion, 47: stopper , 50: lifting means, 51: drive side sprocket, 52: driven sprocket, 53: drive motor, 54: chain, 55: lower guide, 56: base portion, 57: notch, 58: guide member, 59 : Rotating part, 60: Engaging part, 61: Rotating support part, 62: Contact piece, 64: Angle indicator

Claims (9)

In the piling attachment attached to the tip side of the boom of the construction vehicle and used for driving a pile,
It has a front and rear rotation horizontal axis orthogonal to the longitudinal direction of the boom, and a left and right rotation horizontal axis orthogonal to the front and rear rotation horizontal axis, and is rotatably supported on the tip side of the boom via the front and rear rotation horizontal axis. Mounting portion, a long elevating guide cell rotatably held by the mounting portion via the horizontal rotational horizontal axis, and the vertical movement around the longitudinal horizontal rotational axis attached to the mounting portion An angle sensor for detecting the longitudinal rotation angle of the guide cell and the lateral rotation angle of the elevation guide cell around the horizontal rotational horizontal axis, and attached to the lower end of the elevation guide cell, the longitudinal length of the elevation guide cell A positioning pin which is driven into the ground with its direction aligned in the vertical direction to fix the lower end side of the elevating guide cell, and a pile driving force slidably held along the longitudinal direction of the elevating guide cell Raw means, raising and lowering means provided on the raising and lowering guide cell to raise and lower the pile driving force generating means along the longitudinal direction of the raising and lowering guide cell, and the pile driving force generating means A pile driving attachment characterized by comprising a chuck portion capable of being held, and a lower guide for guiding the pile driven into the ground below the elevator guide cell. The pile driving attachment according to claim 1, wherein the mounting portion has an arm cylinder connecting portion to which a tip side of an arm cylinder whose base side is connected to an upper base side of the boom is connected. The pile driving attachment according to claim 1 or 2, wherein the mounting portion is connected to a base side of a left and right angle adjustment cylinder that rotates the elevating guide cell in the left and right direction around the left and right rotation horizontal axis. A pile driving attachment characterized in that the elevating guide cell has a cylinder front end connecting portion to which the front end of the left and right angle adjusting cylinder is connected. The pile driving attachment according to any one of claims 1 to 3, wherein the pile driving thrust generating means comprises: a cylinder; a piston that reciprocates in the cylinder along the longitudinal direction of the elevating guide cell; A sliding shaft which is slidably held on the front side and which is pressed and slid by the piston, the chuck portion is connected to the front side of the sliding shaft, and the sliding shaft is the chuck portion And a pile driving attachment characterized in that it is rotatable around an axis of the cylinder together with the pile. 5. The pile driving attachment according to claim 4, wherein the lower guide is formed with a base portion fixed to the elevating guide cell, and an engaging portion engaged with the outer periphery of the pile, and attached to the base portion A pile driving attachment characterized in that it has a rotary portion rotatable around the axis of the cylinder together with the pile. The pile driving attachment according to any one of claims 1 to 5, wherein the elevating means is rotatable to a lower end side of the elevating guide cell and a driving side sprocket rotatably mounted on the upper end side of the elevating guide cell. , A drive motor connected to the drive side sprocket, and a chain wound around the drive side sprocket and the driven side sprocket and connected to the outside of the pile driving force generating means And a piling attachment characterized by having. A pile driving machine in which the pile driving attachment according to any one of claims 1 to 6 is mounted on a tip side of a boom of a construction vehicle. The pile driving machine according to claim 7, wherein an angle indicator for displaying the front-rear direction rotation angle and the left-right direction rotation angle detected by the angle sensor is attached to a driver's seat of the construction vehicle. Features a pile driver. The pile driving machine according to claim 7 or 8, wherein the elevation guide cell is located on the front side of the driver's seat, and the pile held by the chuck and the driving position of the pile can be viewed from the driver's seat Pile driver characterized by.

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