CN2290635Y

CN2290635Y - Self-runing hydraulic pile-drawer

Info

Publication number: CN2290635Y
Application number: CN 95245187
Authority: CN
Inventors: 宋永刚
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-08-18
Filing date: 1995-08-18
Publication date: 1998-09-09
Anticipated expiration: 2005-08-18

Abstract

The utility model discloses a self-running hydraulic pile-drawer, comprising a self-running base disk provided with a power-output port, a door frame, supporting legs, a pile-drawing driving oil cylinder, a self-fastening pile-clamping device, an adjusting mechanism of the door frame, a sliding wheel, a steel rope, a controlling system, etc. The machine can be used to draw out the long and thin rod-shaped objects such as steel piles, wood piles, cement piles, etc. which are buried in the soil vertically or tipsily. The utility model is especially suitable for drawing out high-speed highway guardrail piles which are struck and damaged. The self-running hydraulic pile-drawer has the advantages of good maneuverability, simple operation, strong pile-drawing force, reliable performance and high work efficiency.

Description

Self-propelled hydraulic pressure extractor

The utility model relates to a kind of self-propelled hydraulic pressure extractor.

In building, municipal transformation, power supply, Communication Engineering, often to run into various the problem discarded or that damaged of extracting.Build at speedway, in the maintenance work, also usually need to extract excess and squeeze into or take place and hit curved guardrail stake and the marker post that damages by vehicle after the traffic accident.For large-scale construction engineering, a kind of known pile pulling equipment (U.S., patent No. CN85106683A) is that impact force action when utilizing compressed air to make pile monkey up is on tup and upwards pile pulling.The shortcoming of this principle is because compressed-air actuated pressure ratio lower (the highest 10 kg/cm), in order to obtain certain pile pulling power, the pressure air chamber that very big section then must be arranged, simultaneously, in order to obtain certain impact velocity, the air demand of compressed-air system must be very big, so, the complex structure of entire equipment, in large scale, mobility is poor.The pile pulling function of another kind of known Pile driving or withdrawing vehicle (patent No. CN2067293U) realizes by hydraulic cylinder, wire rope and pile pulling hook.The shortcoming of this pile pulling method is requirement must porose or on-the-spot boring by pile pulling top, and the intensity in hole must can be born the effect of pile pulling power and do not torn or burst apart; When during greater than its maximum pile pulling stroke, then the pile pulling hook being pulled down by the length of embedment of pile pulling, be suspended to by in the pile pulling near hanging again in the hole at place, ground or after the redrilling; In addition, beat pile pulling operating mechanism and be positioned at the rear portion, chassis, handle inconvenience.Therefore, this Pile driving or withdrawing vehicle is to by the bad adaptability of pile pulling, and back work is many, and pile pulling efficient is low.For the operation of extracting of freeway guardrail stake and marker post, at present domestic still do not have a special-purpose machinery, adopts the method for hand digging mostly, and some then adopts simple tools such as rope rig and jack to carry out pile pulling, inefficiency, and labour intensity is big.

The purpose of this utility model provides a kind of extractor, and it can be voluntarily, and mobility is good, and is simple in structure, easy to operate, can clamp automatically by pile pulling also expeditiously it to be extracted.

The purpose of this utility model is achieved in that at propons and drives, the hinged door frame of vehicle frame front end of the self-propelled frame of propons carrying, the door frame column lower end is equipped with telescopic hydraulic leg, the pile pulling driving oil cylinder is equipped with in door frame column upper end, one end of two wire rope is separately fixed at the upper end of two door frame columns, the pile pulling driving oil cylinder hinge outside, and the movable pulley of skirted piston rod end and the fixed pulley on the door frame, its other end links to each other with two pile pulling levers of pile chuck, other element of hydraulic system is installed on the chassis frame at door frame rear, and the pile pulling control system is arranged in travel direction dish the place ahead.

Wherein said door frame is welded by hollow square tube or pipe, and tube cavity is furnished with support oil cylinder and pile pulling driving oil cylinder etc.

Wherein said pile chuck comprises pile pulling lever, folder shoe, guiding boots and folder stake fork etc.

The utility model is because the chassis voluntarily of employing propons carrying is the basis, and operating mechanisms such as door frame are arranged in the place ahead of driver's (also being Job Operations person simultaneously), so mobility is good, easy to operate, save manpower; Because so the sequential loop action that the pile pulling driving oil cylinder matches with pile chuck and can realize clamping-pile pulling-loose-downslide-clamping-pile pulling more automatically is pile pulling operating efficiency height.

Describe in detail according to concrete structure and the working condition that the utility model proposes below in conjunction with accompanying drawing.

Fig. 1 is the overall structure sketch of preferred embodiment of the utility model.Pile pulling control system 2, door frame 3, door frame adjustment oil cylinder 4 are installed on the self-propelled frame 1 that propons drives, propons carries.When door frame is adjusted oil cylinder 4 expanding-contracting actions, drive door frame around the rotation in vertical vertical plane of horizontal bearing pin 5, thereby change the angle of door frame 3 with respect to ground, the central motion track that makes binder is with parallel by the axis of pile pulling under ground portion.Fig. 2 is the structure diagram of above-mentioned door frame.Door frame is put the beams in place and to be one there is the beam of a gap forward at bending or middle part backward, pile pulling driving oil cylinder 7 and fixed pulley 6 are equipped with in column 19 upper ends, the tailpiece of the piston rod of pile pulling driving oil cylinder 7 is equipped with movable pulley 9, one end of wire rope 8 is fixed on door frame column 19 upper ends, walks around movable pulley 9 and links to each other with the last hole of pile pulling lever 14 with fixed pulley 6.The cylinder barrel end of support oil cylinder 10 is installed in the position of door frame column 19 middle parts under slightly, and tailpiece of the piston rod and guide pipe 11 and a support 13 are hinged.Fig. 3 is the structure diagram of above-mentioned pile chuck.Pile chuck is based on folder stake fork 12, by lever bearing pin 15 two pile pulling levers 14 are installed on the folder stake fork 12 symmetrically, to press from both sides shoe 17 by clamping shoe bearing pin 18 is hinged in 14 times holes of pile pulling lever, and the protruding axle of pitching 12 outsides by the folder stake is hinged with guiding boots 16, guiding boots 16 cooperate with the right angle face of square column or the face of cylinder of plane or circular abutment, pile chuck both can be slided up and down along door frame column 19, can rotate with respect to guiding boots 16 again, so that the stake of pile pulling fore-clamp, and in the pile pulling process, work the stake effect of holding up.

During pile pulling, operating voluntarily, chassis 1 makes the complete machine forward-reverse, transverse moving left and right arrives by pile pulling stake position, operating door frame then adjusts oil cylinder 4 and door frame 3 is adjusted to ground is kept suitable angle, operate support oil cylinder 10 again, two supporting legs are supported on the ground reliably, make the pile chuck centrode and coincided by the axis of pile pulling under ground portion, at last, handle pile pulling driving oil cylinder 7, make the piston rod retraction, pile chuck falls to ground, two press from both sides shoe 17 in opposite directions and open on the pile chuck, can be stuck between the two folder shoes 17 by pile pulling.At this moment, handle pile pulling driving oil cylinder 7, make piston rod overhanging, wire rope 8 tensionings, affecting pile pulling lever 14 to rotate around lever bearing pin 15, folder shoe 17 move toward one another are clamped by the pile pulling pile lining, is pile pulling power thereby produce along the frictional force of pile lining, this pile pulling power is directly proportional with the lifting force of wire rope 8, makes the pile chuck will be by firmly locking of pile pulling.When the piston rod of pile pulling driving oil cylinder 7 continues overhanging traction pile chuck when up, together with being extracted by pile pulling.When pile chuck arrives the top of door frame 3, reversible control pile pulling driving oil cylinder 7, make wire rope 8 loose, pile pulling lever 14 and folder shoe 17 rotation downwards under action of gravity, frictional force between folder shoe 17 and the pile lining reduces, when pile chuck slides into certain position under pile lining, promote pile chuck again and promptly clamp again by pile pulling continuation pile pulling.If by door frame when longer, the put the beams in place gap at middle part of door frame becomes by the passage of pile pulling, makes this extractor can extract very long stake by pile pulling.

Claims

1. self-propelled hydraulic pressure extractor, it comprises self-propelled frame, it is characterized in that: the chassis frame front end is equipped with door frame, the door frame column lower end has telescopic legs, there is the pile pulling driving oil cylinder door frame column upper end, wire rope one end is fixed on door frame column upper end, walks around the movable pulley of pile pulling driving oil cylinder tailpiece of the piston rod and the fixed pulley on the door frame, and the other end links to each other with pile chuck.

2. by the described self-propelled hydraulic pressure of claim 1 extractor, it is characterized in that said door frame lower end is hinged on the front end of the self-propelled frame vehicle frame of propons carrying, and articulated adjustment oil cylinder between door frame upper end and the chassis frame.

3. by the described self-propelled hydraulic pressure of claim 1 extractor, it is characterized in that said stake device has the folder stake fork of a front openings, cut with scissors it on and joining at least two in opposite directions or the pile pulling lever that radially wobbles.

4. by the described self-propelled hydraulic pressure of claim 1 extractor, it is characterized in that the tie point of said pile pulling lever and pile pulling wire rope is positioned at the inboard of the pin joint of pile pulling lever and folder stake fork.

5. by the described self-propelled hydraulic pressure of claim 1 extractor, it is characterized in that respectively there are piston shoes that match with the door frame column said pile chuck both sides, and these piston shoes are hinged with the protruding axle in the folder stake fork outside.

6. by the described self-propelled hydraulic pressure of claim 1 extractor, it is characterized in that it is that a recurvate beam or middle part have a beam towards the gap in the place ahead that said door frame is put the beams in place.