JPH1161894A - Machine for driving water pipe into ground - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a machine for driving a water pipe into the ground, which requires a small installation space, and in which the lift-up and dropping of a hammer can be automated. SOLUTION: A wire rope 5 is wound by several turns by means of a hammer 6 secured to one end of the wire rope 5 and a drum 10 which is rotated together with a rotary shaft until a predetermined torque is obtained, and on which the other end of the wire rope 5 is connected. Further, when this wire rope 5 is guided at a position where it is always pulled by a second pulley 18, the second pulley 18 is rotatably held by a crank arm 16 which is turned by a speed retarding motor 15 through a clutch mechanism. Thus, the installation space of the machine can becomes exteremely small when a water pipe 7 is driven into the ground, that is, the driving machine can be used even in a narrow place. Further, the worker has to only operate the speed retarding motor 15 below the hammer 6 so as to drive the water pipe 7 without the necessity of manipulation of a clutch lever for a winch or the like. Thus, no accident is caused due to scattering of the worker's attention caused by several repetitions of the manipulation of the clutch lever. Thereby it is possible to ensure the safety, and the worker can take another work when the water pipe is driven into the ground.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water pipe driving machine for driving a water pipe for pumping groundwater into the ground.

[0002]

2. Description of the Related Art Conventionally, as a method of driving a water pipe into the ground, there are a method of driving a water pipe by applying an impact to the water pipe with a hammer, a method of driving a water pipe by vibrating the water pipe, and the like. Used in The device normally used in this method is a tripod 31 for installing the pulley 4 directly above the water pipe 7 to be driven into the ground, as shown in FIG.
A winch 3 for lifting a hammer 6 fixed to one end of a wire rope 5 wound around a pulley 4
2 is fixed to the ground by a pile 33a at an appropriate position. Moreover, the wire rope 5 is guided by a pulley 34 fixed by a stake 33b at a position away from the winch 32, and is configured to pull the winch 32 in the horizontal direction. A guide rod 6a is provided at a lower portion of the hammer 6, and the guide rod 6a has an appropriate length in the water pipe 7, that is, when the hammer 6 is dropped, the hammer 6 is straightened without tilting. It is inserted so that the center of the tube 7 can be hit directly.

[0003] When the water pipe 7 is driven by this device, the operator lifts the hammer 6 to an appropriate position by winding the wire rope 5 with a winch 32.
By operating the clutch lever 32a of the winch 32, a clutch (not shown) built in the winch 32 is disengaged, and the restraint of the wire rope 5 wound around the winch 32 is released.
The hammer 6 is dropped by its own weight. Subsequently, the operator immediately operates the clutch lever 32a to connect the clutch of the winch 32, winds the wire rope 5 with the winch 32, lifts the hammer 6 again, repeats the above operation, and disconnects the water pipe 7 from the ground. I'm driving in.

[0004]

In the above-mentioned apparatus, not only a relatively large space is required for driving a water pipe, but also a worker always has to operate the clutch lever 3 of the winch 32.
2a must be operated, and during that time, other operations cannot be performed. Also, this clutch lever 3
If the operation 2a is repeated hundreds or thousands of times, the worker's attention becomes distracted, and when the hammer 6 is lifted, the guide rod 6a comes out of the water pipe 7, and when he notices, the hammer 6 falls. Dangers such as the guide rod 6a being stuck deep into the ground often occur, and a device that eliminates these drawbacks and dangers is demanded.

SUMMARY OF THE INVENTION The present invention has been made in accordance with the above-mentioned demands, and has as its object to provide a water pipe driving machine which requires a small installation space and has an unmanned operation for lifting and dropping a hammer. .

[0006]

A rope wound around a pulley suspended at an upper position, a hammer fixed to one end of the rope, and the other end of the rope wound several times below the pulley. And a pulley that guides the rope at a position where the rope is constantly pulled between the pulley and the drum, a crank arm that rotatably holds the pulley, and a crank. A rotation drive source for rotating the arm via a clutch mechanism.

In the clutch mechanism, the rotation of the rotary drive source is transmitted to the crank arm in the first half of the rotation of the crank arm, and in the second half of the rotation of the crank arm, the crank arm is freely rotated to pull the crank arm by the pulling force of the rope. You may comprise so that it may rotate.

Further, a handle may be attached to the other end of the rotating shaft via a one-way clutch.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments will be described below with reference to the drawings. In FIG. 1 to FIG. 4, A denotes a water pipe driving machine, which has a frame 3 for fixing a pole 1 having a predetermined height via a pole base 2. A pulley 4 is attached to an upper portion of the pole 1 via a pulley suspension 1a, and a wire rope 5 as an example of a rope is wound around the pulley 4. A hammer 6 having a predetermined mass is connected to one end of the wire rope 5 so that a water pipe 7 described later can be hit. In addition, a drum mounting base 8 composed of two mounting plates 8a is disposed on the frame 3 near the pole 1.
A drum shaft 9 is horizontally rotatably held by these two mounting plates 8a. A cylindrical drum 10 is rotatably mounted on the drum shaft 9 by itself, and one end of a wire rope 5 is wound around the drum 10 a plurality of times. It is configured to be rolled in and out.

A ratchet wheel 11b meshing with a ratchet pawl 11a rotatably fixed to the mounting plate 8a is fixed to the drum shaft 9.
The rotation direction of the drum shaft 9 is regulated so that the one-way clutch 1a and the ratchet wheel 11b constitute a one-way clutch so that the drum 10 does not rotate in the direction in which the wire rope 5 is taken out. The end of the drum shaft 9 is configured so that a handle 12 can be detachably attached thereto.
The drum shaft 9 is manually rotated so that the drum 10 rotates in the direction in which the drum is wound.

The drum 10 and the drum shaft 9 rotate together with the drum shaft 9 until a torque greater than a predetermined torque is applied to the drum 10 via a torque limiter 13 as an example of a clutch mechanism. Is applied to the drum 10, the drum 10 is configured to rotate independently. The torque limiter 13 is connected to the drum 1
0, a disc 13a that rotates integrally with the disc, a brake shoe 13b that sandwiches the disc, a torque adjustment nut 13d that fastens these via a pressing plate 13f and a spring material 13c, The holding member 13e is screwed with the adjusting nut 13d, and the strength of the torque is adjusted by the position of the torque adjusting nut 13d.

The drum 1 is located between the mounting plates 8a.
0 and near the lower position of the pulley 4, a first pulley 14 is rotatably mounted via a first pulley shaft 14a, and a wire rope 5 to which a hammer 6 is connected.
While pulling it down near the bottom of the pulley 4
It is configured to guide to the pulley 18.

The frame 3 is provided with a deceleration motor 15 serving as a rotary drive source, and the deceleration motor 15 is configured to rotate slowly. An output shaft 15a of the deceleration motor 15 is fixed with an arm receiver 17 for rotatably guiding a crank arm 16 extending in a direction perpendicular to the output shaft 15a. Arm pin 17a
Is provided. The arm pin 17a is configured to rotate slowly together with the arm receiver 17 and abut on the crank arm 16 to push and rotate the crank arm 16, thereby rotating the crank arm 16 by 180 degrees. A second pulley shaft 18a is fixed to one end of the crank arm 16 upright.
a, a second pulley 18 is attached between the drum 10 and the first pulley 14 so as to guide the wire rope 5 at a position where the wire rope 5 is further pulled, so that the crank arm 16 is relatively pulled by the wire rope 5. Have been. The second pulley 18 has a rope guide 18b on both sides thereof, and a guide roller 18c for preventing the wire rope 5 from being detached is attached to the rope guide 18b.

At a position below the intermediate position of the pole 1, a pipe holder 19 having a leading open guide space is fixed, whereby a steel water pipe 7 driven into the ground is provided.
Is configured to be guided upright. The pipe holder 19 is provided with a plurality of locking holes (not shown) into which holding pins 19a for closing the guide space of the water pipe 7 are inserted. The guide space of the pipe 7 is configured to be closed. Further, a limit switch 20 for detecting passage of the hammer 6 is disposed above the pipe holder 19 and near the moving path of the hammer 6, and the limit switch 20 is connected to the hammer 6
Is detected, the power supply of the deceleration motor 15 is turned off.

At the lower part of the hammer 6, a guide rod 6a is provided which can be inserted into the water pipe 7. The length of the guide rod 6a is longer than the maximum descending stroke of the hammer 6. Have been.

The frame 3 has a fall prevention leg 21.
Is installed so that the water pipe driving machine A does not fall down due to the shaking of the pole 1 during the driving operation.

In the above water pipe driving machine, when the deceleration motor 15 starts rotating, the arm receiver 17 fixed to the output shaft 15a rotates while the crank arm 16 pulled by the wire rope 5 remains as it is. Accordingly, the arm pin 17a rotates and hits the crank arm 16, and the crank arm 16
It starts turning with the pulley 18. At this time, the wire rope 5 is pulled, but the crank arm 16 rotates slowly, and a large rotational torque is not applied to the drum 10.
Does not rotate, the hammer 6 side of the wire rope 5 is pulled in, and the hammer 6 is lifted. As shown in FIG. 5, when the crank arm 16 further turns, and in the latter half of the turn, the crank arm 16 is pulled by the wire rope 5 via the second pulley 18, and turns faster than the arm pin 17a, and pulls. The inserted wire rope 5 is returned. At this time, the hammer 6 starts to fall and its speed is increased at an accelerated rate. Immediately before the hammer 6 collides with the water pipe 7, a large torque is also applied to the drum 10, and the drum 10 rotates by the action of the torque limiter 13. Then, the wire rope 5 is pulled out of the drum 10. As a result, the hammer 6 falls below the position before being lifted and can collide with the hammer receiver 7a placed at the upper end of the water pipe 7, and the water pipe at a depth corresponding to the impact force at this time. 7 is driven into the ground.

When this operation is repeatedly performed and the driving of one water pipe 7 is completed, another water pipe (not shown) is connected to the upper end of the water pipe 7, and the water pipe 7 is buried at a predetermined depth in the ground. Driven.

In the embodiment, the deceleration motor 15 is used as a rotation drive source, but any motor that can control the rotation speed to a low speed may be used. In the embodiment, one pole 1 is used, but two poles 1 may be used.

[0020]

As described above, according to the present invention, when the water pipe is driven into the ground, the installation area of the machine can be made extremely small, not only can it be used in a narrow place, but also the worker can use the water pipe. It is only necessary to operate the rotary drive source below the hammer, there is no need to operate the clutch lever for the rotary drive source, and workers will not be distracted by repeated clutch lever operation and cause an accident, The safety of the worker can be ensured, and the worker can perform another task when driving the water pipe.

[Brief description of the drawings]

FIG. 1 is an overall explanatory diagram of the present invention. FIG. 2 is a side view of the drum according to the present invention. FIG. 3 is a sectional view taken along line XX of FIG. FIG. 4 is an explanatory diagram of a crank arm according to the present invention. FIG. 5 is an explanatory view of the operation of the present invention immediately before driving the water pipe. FIG. 6 is an overall explanatory diagram of a conventional example. A water pipe driving machine 1 pole 1a pulley suspension 2 pole base 3 frame 4 pulley 5 wire rope 6 hammer 6a guide rod 7 water pipe 7a hammer receiver 8 drum mount 8a mounting plate 9 drum shaft 10 drum 11a ratchet claw 11b ratchet wheel DESCRIPTION OF SYMBOLS 12 Handle 13 Torque limiter 13a Disk 13b Brake shoe 13c Spring material 13d Torque adjustment nut 13e Holding member 13f Holding plate 14 First pulley 14a First pulley shaft 15 Reduction motor 16 Crank arm 17 Arm receiver 17a Arm pin 18 Second pulley 18a Second Pulley shaft 18b Rope guide 18c Guide roller 19 Pipe holder 19a Holding pin 20 Limit switch 21 Fall prevention leg 31 Tripod 32 Winch 32a Clutch lever 3 a, 33b pile 34 pulley

Claims (3)

[Claims] 1. A rope wound around a pulley suspended at an upper position, a hammer fixed to one end of the rope, and the other end of the rope wound and fixed plural times below the pulley. A drum that rotates integrally with the rotating shaft up to a predetermined torque, a pulley that guides the rope between the pulley and the drum at a position where the rope is constantly pulled, a crank arm that rotatably holds the pulley, and a clutch mechanism that connects the crank arm And a rotary drive source for turning through a water pipe. 2. The clutch mechanism transmits the rotation of the rotary drive source to the crank arm in the first half of the rotation of the crank arm, and in the second half of the rotation of the crank arm, rotates the crank arm freely to pull the crank arm by the pulling force of the rope. The water pipe driving machine according to claim 1, wherein the water pipe driving machine is configured to rotate. 3. A handle is attached to the other end of the rotating shaft via a one-way clutch.
Or the water pipe driving machine according to 2.