JP2013158833A - Steel pipe pile cutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problems that the preparation of a lifting device such as a crane is needed and it is extremely uneconomical since a steel pipe pile cutter and a guide jig, etc., need to be inserted from a pile head upper end of a steel pipe pile when setting them.SOLUTION: A steel pipe pile cutter includes: a fixed frame (1) to be a table in a horseshoe shape so as to allow insertion from a side near a mark of a steel pipe pile cutting position; a turning frame (2) attached on the fixed frame (1), to be turned freely rotatably forwards and backwards as a movement of one stage; a chain (8) with an attachment provided on the turning frame (2); a torch attaching frame (4) attached to the turning frame (2) so as to be moved freely rotatably forwards and backwards around a steel pipe pile (24) as movements of two stages; a torch (5) attached to the torch attaching frame (4), for cutting the steel pipe pile; a driving device (10); and a sprocket (9) attached to an output shaft of the driving device (10).

Description

  The present invention relates to cutting a steel pipe pile from the setting of a steel pipe pile cutting machine that automatically cuts the pile head of the steel pipe pile in a direction orthogonal to the driving direction.

  In the setting of the conventional steel pipe pile cutting machine and its guide jig, etc., it is common to insert from the top end of the steel pipe pile pile head and set the target of the cutting position mark, which takes time and effort. There was a problem.

JP 54-158357 A

  However, in the setting of the steel pipe pile cutting machine and the guide jig thereof, preparation for a lifting device such as a crane is necessary for insertion from the upper end of the steel pipe pile pile head, which is very uneconomical. A steel pipe pile cutting machine that can be easily set without using a lifting device such as a crane, and a guide jig thereof have been desired.

  In view of the above-described problems, the present invention was created to solve the problems. The object of the present invention is to increase the economic effect without using a lifting device such as a crane, and to simplify the setting. An object of the present invention is to provide a steel pipe pile cutting machine that has the advantages that can be achieved.

    In order to achieve the above object, a steel pipe pile cutting machine for cutting a pile head unnecessary portion of a steel pipe pile, a fixed frame serving as a table having a horseshoe-shaped opening fixed to the outer periphery of the steel pipe pile, and the fixing A revolving frame having a horseshoe-shaped opening placed on the frame so as to be able to rotate forward and backward around the steel pipe pile via a sliding member, and a chain with an attachment fixed to the outer peripheral surface of the revolving frame A torch mounting frame attached to the swivel frame and moving around the steel pipe pile so as to rotate forward and backward, a torch for cutting the steel pipe pile attached to the torch mounting frame by fusing, and the torch mounting frame. The torch mounting frame is attached to the outer periphery of the swivel frame, and is engaged with the chain with attachment. A steel pipe pile cutting machine characterized by comprising a drive device mounted to move in a reverse-rotatable manner, wherein the sliding member comprises a ball roller and is attached to the outer peripheral surface of the swivel frame via a handle. A release device that disengages the fixed chain with attachment was attached to the torch mounting frame.

  Here, as a preferable aspect, it is preferable that the sliding portion is provided with a ball roller to smooth the movement.

    As another preferred embodiment, the chain with attachment fixed to the outer peripheral surface of the swivel frame via a handle, a slide frame that slidably moves on the torch mounting frame, and a drive device mounted on the slide frame A release device that disengages the sprocket attached to the output shaft of the drive device may be attached to the torch mounting frame.

  From the above description, according to the steel pipe pile cutting machine according to the present invention, it can be inserted and set from the side of the cutting position of the steel pipe pile, the economic effect can be improved without using a lifting device such as a crane, and the setting is easy. Not only can this be done, but also the cutting accuracy can be increased.

It is a top view of the steel pipe pile cutting machine which shows one Example of this invention. It is a side view of FIG. It is AA arrow sectional drawing of FIG. It is BB arrow sectional drawing of FIG. It is the C section expanded sectional view of FIG. It is explanatory drawing which shows the condition when the steel pipe pile cutting machine shown in FIG. 1 turns 180 degree | times via a turning frame.

  Hereinafter, the present invention will be described more specifically based on the embodiments of the invention described in the drawings.

  The steel pipe pile cutting machine is related to the cutting of the steel pipe pile (24) from the setting of the cutting machine that automatically cuts the pile head in the direction orthogonal to the driving direction, and is a horseshoe-shaped table that is pressed against and fixed to the steel pipe pile (24) The fixed frame (1) and the attachment attached to the fixed frame (1) are attached to a horseshoe-shaped swivel frame (2) that is attached to the fixed frame (1) so as to move around the steel pipe pile (24) so as to freely rotate forward and backward. A torch mounting frame (4) provided with an attached chain (8) and attached to the swivel frame (2) and the swivel frame (2) so as to move around the steel pipe piles in a forward and reverse direction as a two-stage movement. ) And the steel pipe pile (24) attached to the torch mounting frame (4) are attached to the torch (5), the drive device (10), and the output shaft of the drive device (10) for cutting by fusing. Sprocket (9) and the like made comprise is mainly composed.

  The fixed frame (1), which serves as a pedestal that is pressed against and fixed to the steel pipe pile (24), is a plate frame frame (1a) cut into a doughnut-shaped plate and a square plate on the lower surface of the frame frame (1a) The plate seat (1b) is fixed. The plate seat (1b) is provided with a screw and a hole for inserting a guide rod (18) for supporting the adjuster bolt so that the adjuster bolt can be attached. In the embodiment, the plate seat (1b) is performed at four locations.

The swivel frame (2) has a member outer tube (2a) cut into a C shape when the single tube is viewed from above, and a plate-shaped receiving member (2b) that is cut into a donut shape inside to form a horseshoe by welding or the like. Has been fixed. The attachment positions of both members are attached by combining the C-shaped and horseshoe-shaped empty portions. Further, as a reinforcement of both members, plates of reinforcing material (2c) are attached at a plurality of locations to prevent deformation.

  The outer peripheral pipe of the swivel frame (2) is cut into a C shape when the single pipe is viewed from above, and a hole for attaching the attachment chain (8) is provided on the outer side face. A donut shape is cut, and a roller groove is formed in a mountain shape on the lower surface of the horseshoe-shaped plate.

  The adjuster bolt (3), which can be elastically pressed according to the size of the steel pipe pile (24), is screwed into the plate seat (1b) of the fixed frame (1) and attached, and the fixed frame (1) is attached to the steel pipe pile. It is used to press and fix to (24), the rod part is threaded, and a square presser plate for holding the steel pipe pile (24) is attached to its tip side. The other end is subjected to square four-side processing. The adjuster bolt (3) can be moved back and forth toward the center of the steel pipe pile (24), and is installed at a plurality of positions and is brought into pressure contact with the steel pipe pile (24) and fixed.

  The torch mounting frame (4) is mounted to the revolving frame (2) so as to be rotatable forward and backward, and both ends of a rectangular plate are bent inward in the same direction. Yes. In the vicinity of the center of the plate, a square hole is inserted into which the sliding frame (13) is inserted. A stand for attaching a torch is fixed to one side of the side by welding or the like.

  The sliding frame (13) consists of a rectangular plate and is slidably displaceable with respect to the torch mounting frame (4). The attachment chain (8) and the sprocket (9) are disengaged, allowing easy forward and reverse rotation. The outer periphery of the torch mounting frame (4) is made slightly smaller than the four holes in the torch mounting frame, and the drive device (10) is located near the center where sliding is easy. A sprocket (9) is mounted on the top, and a large hole is machined so as not to interfere. Further, the outer peripheral corners are provided with a hole that can be fitted with the rod shaft (12).

  The drive device mounting frame (22) is formed of a U-shaped plate and is mounted on the sliding frame (13). In the center, one round hole is attached to which a T-shaped handle (20) is attached. At the time of mounting, four holes are drilled on the upper side so that the driving device (10) can be mounted, and the output shaft protruding hole of the driving device (10) is drilled near the center.

  The torch (5) is attached so as to be oriented near the center of the steel pipe pile (24), and is blown to the outer peripheral surface of the steel pipe pile (24) by supplying and igniting gas and oxygen, and cutting by fusing.

  The roller (6) is bent at both ends of the torch mounting frame (4) inward in the same direction, and a roller with a flange on both sides attached to its four corner bolts is used, and a bearing or the like is assembled to make the rotation smooth.

  The fixed knob (7) is set to fix the fixed frame (1) and the swivel frame (2) when moving the device or cutting the steel pipe pile (24). The screw shaft is fixed vertically. The screw shaft is fixed by being inserted into the fixed frame (1) at the tip end in accordance with the screw hole of the turning frame (2).

  The chain with attachment (8) is installed in order to keep the track of the sprocket (9), and generally a hole is drilled in the attachment to fix the chain to the chain of the bicycle.

  A sprocket (9) with a boss on one side and a hole in a disk-shaped plate with an outer periphery that is alternately processed with a mountain and valley, is inserted into the output shaft of the drive device (10) and attached with a set screw. The recessed chain of the attached chain (8) and the projected part of the sprocket (9) are engaged, and the chain (8) with an attachment attached to the outer peripheral pipe (2a) of the turning frame (2) guides the track.

  The drive device (10) is a power source that integrates the speed reducer and the electric motor so that the drive device (10) can run along the outer peripheral pipe (2a) of the swing frame (2). At that time, the cutting speed and the material of the cut material are taken into consideration, and a function for adjusting the cutting speed is provided.

  The ball roller (11) is mounted on the upper surface of the frame frame (1a) of the fixed frame (1) and is arranged at an equal position so as to receive the swivel frame (2). The ball roller (11) has a circular head. In addition, a spherical body protrudes from the center of the circle and is rotatable. The screw shaft that supports the sphere is inserted into the hole in the frame frame (1a) of the fixed frame (1) and fixed by tightening with a nut.

  The rod shaft (12) serves as an expansion / contraction guide for the spring (14), and a hexagon socket head cap screw is used to reduce the size of the threaded portion. The spring (14) uses a coiled compression coil spring.

  The rod A (15) is a cylindrical round pipe so that it can slide freely according to the diameter of the steel pipe pile (24) to be cut. The rod B (16) can be slidably extended to adjust the cutting height of the steel pipe pile (24), and a cylindrical round pipe is used like the rod A (15).

  The presser fitting (17) is mounted so that the fixed frame (1) and the swivel frame (2) can be smoothly swung, and the swivel trajectory is not removed. The structure is processed into a C shape, and the frame frame (1a The claw is attached so as to overlap the lower peripheral edge, and the attachment is attached to the receiving member (2b) of the turning frame (2).

  The guide rod (18) is attached to the end fitting (3b) and is made of a circular round steel attached to prevent the rotation of the end fitting (3b) and press the steel pipe pile on the same surface.

  A hose (19) is connected to supply gas and oxygen to the torch (5). The red hose is a gas hose, the blue hose is oxygen, two are high, one is high and the other is low.

  The handle (20) is attached to the drive device mounting frame (22), and serves as a clutch that disengages the concave portion of the chain (8) with attachment and the convex portion of the sprocket (9). The position of the removing torch (5) can be freely changed by pulling the handle (20) to the outer peripheral side.

  The support plate (21) is a member that supports and supports the rod shaft (12). Four holes are drilled in the rectangular plate, the two are mounted, and the other two are inserted into the rod shaft (12) with nuts. Tighten.

  The flow rate adjusting valve (23) is used as a valve for adjusting the flow rates of gas and oxygen.

  This steel pipe pile cutting machine can be applied when cutting off the unnecessary part of the pile head of the steel pipe pile.

DESCRIPTION OF SYMBOLS 1 Fixed frame 1a Frame frame 1b Plate seat 2 Revolving frame 2a Outer peripheral pipe 2b Receiving member 3 Adjuster bolt 3a Screw rod 3b Tip metal fitting 4 Torch mounting frame 5 Torch 6 Roller 7 Fixing knob 8 Chain with attachment 9 Sprocket 10 Drive device 11 Ball roller (Sliding member)
12 Rod shaft 13 Sliding frame 14 Spring 15 Rod A
16 Rod B
17 Presser bracket 18 Guide rod 19 Hose 20 Handle 21 Support plate 22 Drive unit mounting frame 23 Flow rate adjusting valve 24 Steel pipe pile

Claims (3)

A steel pipe pile cutting machine for cutting a pile head unnecessary portion of a steel pipe pile, wherein the fixed frame is a table having a horseshoe-shaped opening that is fixed to the outer periphery of the steel pipe pile, and the fixed frame via the sliding member A revolving frame having a horseshoe-shaped opening placed so as to move freely around the steel pipe pile, and a chain with an attachment fixed to the outer peripheral surface of the revolving frame, attached to the revolving frame, A torch mounting frame that moves freely around the steel pipe pile, a torch that cuts the steel pipe pile attached to the torch mounting frame by fusing, and an outer periphery of the swivel frame that is attached to the torch mounting frame Engage with the chain with attachments fixed to the surface, and attach the torch mounting frame so that the outer periphery of the swivel frame can rotate freely forward and backward Steel pipe pile cutting machine characterized by comprising a drive apparatus. The steel pipe pile cutting machine according to claim 1, wherein the sliding member comprises a ball roller. The attachment chain fixed to the outer peripheral surface of the swivel frame via a handle, a sliding frame slidably moving on the torch mounting frame, a driving device mounted on the sliding frame, and an output shaft of the driving device The steel pipe pile cutting machine according to claim 1, wherein a release device for disengaging a sprocket attached to the torch is attached to the torch attachment frame.

Images