CN110924861A - Walking Omni-directional Rotary Hydraulic Pile Foundation Drilling Machine - Google Patents

Abstract

The walking-type omnidirectional rotating hydraulic pile foundation drilling machine disclosed by the invention is that a support column is hinged to a control room through a hinged bracket and a luffing oil cylinder, a sliding rail is fixed on the supporting column and a transmission chain is hinged, and a sprocket is fixed on the back of the sliding bracket And they are snapped together in the sliding rail, the sprocket is linked with the transmission chain, the drilling power head is fixed in front of the sliding bracket, and the auger rod and the drill bit are connected by the pin. Configure the track assembly. It adopts full hydraulic control, which can be infinitely variable speed, and can adopt different drilling speeds for different hardness formations. The drilling power head is flexible up and down, high drilling efficiency, fast and accurate positioning, strong drilling ability, convenient and flexible operation, The diesel engine power can meet the independent operation in the field, the drilling system can be rotated in all directions, the whole area has no dead angle construction, the equipment occupies a small area, and the operation radius is small, which meets the safety requirements for the construction of existing railway lines and other construction requirements in confined spaces.

Description

Walking type omnibearing rotary hydraulic pile foundation drilling machine

Technical Field

The invention relates to a pile foundation drilling machine suitable for a narrow space region, in particular to a hydraulic pile foundation drilling machine capable of rotating in all directions, and belongs to the field of road and bridge engineering.

Background

In the road and bridge building construction, the foundation treatment is a very important link, the pile foundation treatment is a common foundation treatment mode, namely, after the pile foundation is drilled into a hole, the drilled hole is filled or backfilled and tamped, so that the bearing capacity of the foundation is improved, the requirements of the design on the bearing capacity and the stability of the foundation are met, the anti-seismic performance of the foundation is improved, the deformation property of the foundation is improved, the applicability, the safety, the durability and other use functions of road and bridge engineering are met, and the pile foundation treatment is to be completed firstly by drilling the pile foundation.

In pile foundation drilling construction, currently, drilling equipment commonly used includes a rotary drilling machine, an impact drilling machine, a punching and grabbing cone, a rotary drilling machine, a Luoyang shovel with a tripod, a pneumatic drilling machine and the like. In the process of pile foundation treatment construction of part of existing railway lines, a construction area requires hard isolation and closed protection, the height limit is 3.8m, the width limit is 2.5m, and the construction requirement is carried out longitudinally along the line, so that large drilling equipment such as a rotary drilling machine, an impact drilling machine, a punching and grabbing cone, a rotary drilling machine and the like cannot meet site construction conditions and cannot carry out drilling operation in a narrow space and an existing electrified railway area due to the limitation of the construction area space; the existing small-sized drilling equipment is provided with a Luoyang shovel with a tripod support, wherein the position right below the vertex of the tripod support is aligned with the drilling position, but the Luoyang shovel is not suitable for drilling in an area close to a boundary line or other narrow spaces with limited height and width, and the Luoyang shovel is slow in drilling speed and low in drilling efficiency; the other small-sized drilling equipment, namely the pneumatic drilling machine can meet the construction conditions of narrow space under the general condition, but can only be suitable for small-aperture grouting hole guiding of about 10cm, and the limitation of the pneumatic drilling machine is that the aperture is too small, so that the pile foundation cannot effectively bear larger load. Therefore, when drilling in a narrow space and an existing electrified railway area, how to select a practical, safe and effective pile foundation drilling machine is a great difficulty in pile foundation construction.

Disclosure of Invention

The invention aims to overcome the defects of the traditional drilling machine and develop a walking type omnibearing rotary hydraulic pile foundation drilling machine which can be constructed in a narrow space and an existing electrified railway area.

The invention is realized by the following technical scheme:

the support column is hinged in front of the control chamber through a hinged support and two amplitude-changing oil cylinders, a slide rail is fixed on the support column and is hinged with a transmission chain, a chain wheel is fixed on the back of the sliding support and is buckled in the slide rail in a clamping mode, the chain wheel is connected with the transmission chain, a drilling power head is fixed in front of the sliding support, a spiral drill rod and a drill bit are connected below the drilling power head through a pin shaft, a hydraulic pump and a diesel engine are arranged behind the control chamber, the hydraulic pump is communicated with the amplitude-changing oil cylinders through a hydraulic pipe, the drilling power head is connected.

The invention adopts full hydraulic control and hydraulic transmission, all working parts can realize stepless speed change, the drilling power head can freely lift and descend under the drive of a transmission chain, the drill rod and the drill bit can rotatably drill under the drive of the power head, different drilling speeds can be adopted according to strata with different hardness, the adaptability to different soil qualities is strong, the drilling power head is flexible up and down, the drilling efficiency is high, the positioning is quick and accurate, the drilling capability is strong, the operation is convenient and flexible, the diesel engine power can meet the field independent operation, the application range is wide, the drilling system can rotate in all directions, no dead angle construction exists in the whole area, the occupied area of equipment is small, the operation radius is small, and the safety requirement of the existing railway construction and the requirement of construction in other areas.

Drawings

FIG. 1 is a schematic structural view of the present invention.

FIG. 2 is a left side view of the structure of the present invention.

The reference numerals are explained below:

the drilling machine comprises a support column 1, a slide rail 2, a transmission chain 3, a chain wheel 4, a sliding support 5, a drilling power head 6, a pin shaft 7, a spiral drill rod 8, a drill bit 9, a hinged support 10, a variable amplitude oil cylinder 11, a control chamber 12, a hydraulic pump 13, a diesel engine 14 and a crawler assembly 15.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings:

the drilling device comprises a support column 1, a sliding rail 2, a transmission chain 3, a chain wheel 4, a transmission chain 3, a drilling power head 6, a spiral drill rod 8 and a drill bit 9, a hydraulic pump 13 and a diesel engine 14, wherein the support column 1 is hinged in front of a control chamber 12 through a hinged support 10 and two amplitude oil cylinders 11, the sliding rail 2 is fixed on the support column 1, the transmission chain 3 is hinged, the chain wheel 4 is fixed on the back of the sliding support 5 and is clamped in the sliding rail 2, the chain wheel 4 is connected with the transmission chain 3, the drilling power head 6 is fixed on the front of the sliding support 5, the lower portion of the drilling power head 6 is connected with the spiral drill.

The auger stem (8) may be left-handed or right-handed.

When the drilling machine works, the drilling machine walks to a position to be drilled through the crawler assembly, the control chamber controls the stretching of the variable-amplitude oil cylinder through the hydraulic pipe, the angle of the supporting column is changed, the drilling is started after the drilling machine is accurately positioned, each section of the spiral drill rod is 2.2m long, the conveying chain drives the sliding support and the drilling power head to freely lift along the sliding rail through the chain wheel, the power head drives the drill rod to rotate, the drilling work can be performed in sections, each time the drilling is performed in a clockwise rotation mode, the blade of the spiral drill rod can take out the number of redundant soil bodies in the hole, when the drill rod is completely deeply inserted into the soil body, the pin shaft at the connection position of the top end of the drill rod and the power head is disassembled, the power head rises in an idle load mode, the next drill rod is butted, the bottom end of the butted drill rod is, and sequentially circulating until the drilling reaches the set depth. And after drilling is finished, lifting the drill rods, and sequentially detaching each section of drill rod to finish the drilling operation.

Claims (2)

1. The walking-type omnidirectional rotating hydraulic pile foundation drilling machine is characterized in that it is realized by the following technical solutions: the support column (1) is hinged in the control room through a hinged bracket (10) and two luffing oil cylinders (11). (12) In the front, fix the slide rail (2) on the support column (1) and hinge the drive chain (3), and at the back of the slide bracket (5) fix the sprocket (4) and snap it to the slide rail (2) Inside, the sprocket (4) is linked with the transmission chain (3), the drilling power head (6) is fixed in front of the sliding bracket (5), and the drilling power head (6) is connected with the auger rod ( 8) With the drill bit (9), a hydraulic pump (13) and a diesel engine (14) are arranged behind the control room (12), the hydraulic pump (13) is connected to the luffing cylinder (11) through a hydraulic pipe, and the drilling power head (6) With the transmission chain (3), the control room (12) is equipped with a crawler track assembly (15). 2 . The walking-type omnidirectional rotating hydraulic pile foundation drilling machine according to claim 1 , wherein the auger rod ( 8 ) can be left-handed or right-handed. 3 .

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