CN2279382Y

CN2279382Y - Apparatus for internal ramming and enlarging bottom diameter

Info

Publication number: CN2279382Y
Application number: CN 96234611
Authority: CN
Inventors: 谌志祥
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-04-15
Filing date: 1996-04-15
Publication date: 1998-04-22
Anticipated expiration: 2006-04-15

Abstract

The utility model discloses a facility for building piles. The utility model is mainly characterized in that the inner part of a pile pipe is hung with a ramming and enlarging hammer, the upper part of the pile pipe is provided with a guide pulley, the bottom of a pile frame is provided with a guide pulley, the second reel drum of a winding engine is wound with a wire rope whose one end is hung with a ramming and enlarging hammer through a guide pulley, and the end face of the second reel drum of a winding engine is provided with a rotatable digital disk which can signify the size of the bottom diameter of a ramming pile. The utility model can be applied on various sunk tube pouring pile machines and can increase the bearing capacity of a single pile for ramming and enlarging piles whose bottoms are enlarged to be big head shapes or building bamboo joint piles which are arbitrarily enlarged along the pile bodies.

Description

Ram in a kind of and expand footpath, end device

The utility model relates to a kind of equipment of building piling usefulness.

Compaction pile is a kind of new stake type that began in recent years to use, and special utilization improves bearing capacity of single pile to the consolidation process of soft foundation.Because this type dependable performance, cost is reasonable, is designed the welcome with Construction unit deeply.The capital equipment and the method for existing pouring compaction pile are: utilize knocking formula pile driver, in former outer tube, increase an inner tamping tube with the same length of outer tube, the inner tamping tube bottom lock, inner and outer pipe is squeezed into ground simultaneously, inner tamping tube is pulled up, fluid concrete then, the inner tamping tube of thumping again, extruded concrete forms compaction pile.This kind method exists some deficiency in operation: the one, and the variation in footpath can not intuitively reflect at the bottom of the compaction pile, is awkward; The 2nd, inner and outer pipe easily produces distortion under impact load, and when pulling out inner tamping tube, the inner and outer pipe relative motion easily is obstructed; The 3rd, existing pile frame can not make full use of; The 4th, inner tamping tube can not ram out outer tube and ram expansion; The 5th, can only on knocking formula pile driver, use.

The purpose of this utility model provides the device in footpath, the drop weight rammer expansion end in a kind of the pipe, can use on multiple tube-sinking cast-in-situ pile machine.

The utility model is to adopt following proposal to finish its goal of the invention: hung one and ram the expansion hammer in the stake pipe, a leading block is equipped with on stake pipe top, a leading block is equipped with in the bottom of pile frame, be wound with lifting on the reel II of hoist engine and ram expand the wire rope of beating, the end face design of reel II has a rotatable digital rotating disk 16 that shows footpath size at the bottom of the compaction pile.

The utility model has been owing to adopted such scheme, so long as the tube-sinking cast-in-situ pile machine can both be beaten compaction pile, the digital rotating disk on the reel II can clearly illustrate the size in footpath at the bottom of the compaction pile, is convenient to operation; Secondly, only have one to ram the expansion hammer, thereby reduced operating expenses in the motion of stake inner axial tube; In addition, also can construct the ring stake that enlarges pile body according to the situation of ground.

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail:

Fig. 1 is the structural representation of tube-sinking cast-in-situ pile expander;

Fig. 2 rams the structural representation that expands hammer;

Fig. 3 is the front schematic view of digital rotating disk;

Fig. 4 is the part section structural representation of digital rotating disk.

Be equipped with a leading block 8 in the bottom of stake machine frame 9, be wound with the wire rope of lifting jump bit 1 on the lifting drum 1, a leading block 2 is equipped with on the top of stake pipe 7, wire rope 6 on lifting drum II expands hammer 3 by the rammer in leading block 2, the 8 traction stake pipes, is equipped with a supporting on the top of stake pipe 7 and rams the latch 4 that expands hammer 3.End face at lifting drum II has been screwed an annular base 15, rolling ring 17 on annular base 15, fixing with screw 19,20 respectively, outer rolling ring 21, numeral rotating disk 16 is placed between interior rolling ring 17 and the outer rolling ring 21, be evenly distributed with scale on the numeral rotating disk 16, by the size of stake pipe diameter, indicate the height H of fluid concrete in the stake pipe and the diameter phi (being expressed as H/ φ on the digital rotating disk 16) that expands footpath, the end respectively.Digital rotating disk 16 is provided with indicateing arm 18, and the threaded one end of indicateing arm 18 is connected on the digital rotating disk 16, at the top and the digital rotating disk 16 corresponding screws that have of annular base vertical direction.When tamping force is zero, indicateing arm on the digital rotating disk 16 is pushed the upper end vertical with horizontal plane, the rotation indicateing arm rotates annular base and digital rotating disk 16 synchronously, after rammer expands, holds shown scale can converse the footpath, the end of compaction pile in vertical direction from digital rotating disk.The rammer expansion is beaten 3 and is cylinder, a rubber washer 11 is stamped in its upper surface, be with a rigidity packing ring 12 and fixing on the rubber washer 11 with bolt 13, beat 3 when moving up and down ram expanding, rubber washer 11 is in time removed the residual concretes on the stake inside pipe walls, and wire rope 6 expands the hanger of hammering into shape on 3 14 and is connected with being fixed on to ram.Hoist engine 10 is two reel fast winches.During construction, rammer is expanded the top that hammer 3 is enclosed within stake pipe 7, and support with movable latch 4.Use vibratory drilling method, knocking squeezes in the soil stake pipe until projected depth, the concrete that stirs poured in the stake pipe from feed hopper highly be the concrete of H, put down to ram to expand to beat and be pressed on the concrete, be stake pipe height of lifting h (h＜H) simultaneously, then, rise and fall continuously to ram to expand and beat 3, impact pile pipe bottom concrete, after pile crown forms major part, sling to ram and expand hammer to stake pipe top, after property is filled the required concrete of pile body in the stake pipe again, put down to ram to expand to hammer into shape and be pressed on the pipe inner concrete, beat densification pipe inner concrete under the weight effect own ram expanding, and the limit flanging pulls up a pipe slowly till the stake pipe has all been extracted face, at this moment bore forming finishes.

Claims

1, ram in a kind of and expand footpath, end device, by twin drum winch, frame, the stake pipe, the formations such as (or vibration beat) of dropping hammer, the reel of hoist engine [1] drives to drop hammer squeezes into ground with the stake pipe, concrete perfusion in the stake pipe, it is characterized in that: in stake pipe [7], hung one and rammed expansion hammer [3], a leading block [2] is equipped with on stake pipe [7] top, a leading block [8] is equipped with in the bottom of pile frame [9], be wound with wire rope [6] on the reel of hoist engine [II], wire rope [6] is by leading block [2], [8] hung ram to expand and beat [3], the end face of lifting drum [II] is equipped with the rotatable digital rotating disk [16] of footpath size at the bottom of the expression compaction pile.

2, a kind of interior rammer according to claim 1 expanded footpath, end device, it is characterized in that the end face of reel [II] is fixed with an annular base [15], uses screw [19], [20] to be fixed with interior rolling ring [17], outer rolling ring [21] on annular base respectively.

3, a kind of interior rammer according to claim 1 expanded footpath, end device, it is characterized in that digital rotating disk [16] is provided with indicateing arm [18].

4, a kind of interior rammer according to claim 1 expanded footpath, end device, it is characterized in that the upper surface of ramming expansion hammer [3] is fixed with rubber washer [11], rigidity packing ring [12] with screw [13].

5, a kind of interior rammer according to claim 1 expands footpath, end device, it is characterized in that being equipped with a supporting rammer expansion on the top of stake pipe [7] beats the latch [4] of [3].