CN219156328U

CN219156328U - Pile foundation underpinning low clearance cantilever hoisting device

Info

Publication number: CN219156328U
Application number: CN202222262994.7U
Authority: CN
Inventors: 张承善; 张圣俊; 钱程; 周庆华; 谢晓阳; 马春辉
Original assignee: Shanghai Pudong New District Road Construction Development Co ltd
Current assignee: Shanghai Pudong New District Road Construction Development Co ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2023-06-09
Anticipated expiration: 2032-08-26

Abstract

The utility model relates to a pile foundation underpinning low clearance cantilever lifting device which comprises a bracket, a base, a pulley block and a winch, wherein the base is arranged on the bracket in a horizontal direction in a movable manner; the pulley block is connected with the base; the hoist is provided with a steel wire rope, and the steel wire rope pulls an object to be hoisted through the pulley block. According to the pile foundation underpinning low-clearance cantilever lifting device, the upright posts are arranged at proper positions, such as bridge piers or bridge plate supporting structures, the hoisted steel longitudinal beams are pulled by the hoist engine through the pulley blocks and the steel wire ropes to be vertically transported, and after reaching a specified height, the steel longitudinal beams are transported to a required position through horizontal movement of the base. The support adopts stand and crossbeam, can conveniently set up the position of low headroom when pile foundation underpinning, has solved low headroom and can't use automobile crane, crawler crane, roll over the problem that arm hung lifting device.

Description

Pile foundation underpinning low clearance cantilever hoisting device

Technical Field

The utility model relates to a pile foundation underpinning low clearance cantilever hoisting device.

Background

With the accelerated development of underground space, as subways are not considered in the near-early planning of most cities, the crossovers of newly planned lines and old lines gradually increase, so that the underground tunnels can not be avoided in almost every city by penetrating the pile foundations of the existing buildings and bridges. Because the overpass pile foundation underpinning boundary condition is complicated, ultra-low clearance operation is generally required, and the clearance requirement cannot be met by the traditional automobile crane, crawler crane and folding arm crane lifting equipment, a novel device for installing an underpinning structure is required to be provided.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provides a pile foundation underpinning low-clearance cantilever lifting device.

In order to achieve the above purpose, the present utility model is realized by the following technical scheme:

pile foundation underpinning low headroom cantilever hoist device, its characterized in that includes:

a bracket;

the base is arranged on the bracket in a horizontally movable manner;

the pulley block is connected with the base;

the hoisting machine is provided with a steel wire rope, and the steel wire rope pulls an object to be hoisted through the pulley block.

According to one technical scheme of the utility model, the bracket comprises a stand column and a cross beam, and the cross beam is arranged at the upper end of the stand column; the cross beam is provided with a containing cavity and a chute, and the base is arranged in the containing cavity and extends out of the containing cavity from the chute.

According to one technical scheme of the utility model, the base comprises a bottom plate and a lifting lug plate, and the bottom plate is arranged in the accommodating cavity and can move in the horizontal direction; the lifting lug plate is connected with the bottom plate and extends out of the containing cavity from the sliding groove.

According to one technical scheme of the utility model, a rolling device is arranged in the accommodating cavity and can be arranged in a rolling way; the bottom plate is pressed against the rolling device.

According to one technical scheme of the utility model, the rolling device is a steel ball.

According to one technical scheme of the utility model, a containing groove is formed in the containing cavity, and the steel balls are arranged in the containing groove; the steel balls protrude out of the accommodating groove.

According to one technical scheme of the utility model, two baffles are arranged in the accommodating cavity, and the baffles protrude out of the bottom plate; the two baffles are respectively arranged on two sides of the bottom plate to limit the moving direction of the bottom plate.

According to one technical scheme of the utility model, an auxiliary baffle is arranged in the accommodating cavity, the auxiliary baffle and the baffle are arranged at intervals, and the steel balls are arranged between the baffle and the auxiliary baffle; the steel balls protrude out of the secondary baffle plate and are in contact with the bottom plate.

According to one aspect of the present utility model, the base plate is connected with a plurality of reinforcing ribs.

According to one technical scheme of the utility model, the device further comprises a driving device, and the driving device drives the base to move.

According to the pile foundation underpinning low-clearance cantilever lifting device, the upright posts are arranged at proper positions, such as bridge piers or bridge plate supporting structures, the hoisted steel longitudinal beams are pulled by the hoist engine through the pulley blocks and the steel wire ropes to be vertically transported, and after reaching a specified height, the steel longitudinal beams are transported to a required position through horizontal movement of the base. The support adopts stand and crossbeam, can conveniently set up the position of low headroom when pile foundation underpinning, has solved low headroom and can't use automobile crane, crawler crane, roll over the problem that arm hung lifting device. The crossbeam sets up holds the chamber, and the base is holding intracavity horizontal migration, ensures the stability and the fastness of whole device of base removal in-process. The baffle is used for limiting the moving direction of the bottom plate, so that the bottom plate can be more stable in the moving process. The baffle and the auxiliary baffle are used for limiting the balls, so that the position stability of the balls is ensured, the baffle can be used for two purposes, and the structure of the utility model is simplified. The horizontal movement of the base can be performed by a worker pulling the base by hand or by a driving device.

Drawings

FIG. 1 is a schematic view of the structure and use of the present utility model.

Fig. 2 is a schematic view of the internal structure of the beam according to the present utility model.

FIG. 3 is a schematic view of the cross beam of the present utility model in vertical cross section.

Detailed Description

As shown in fig. 1 to 3, a pile foundation underpinning low clearance cantilever hoisting device 1 comprises a bracket 2, a base 3, a pulley block 4 and a winch 5. The base 3 is movably arranged on the bracket 2 in the horizontal direction; the pulley block 4 is connected with the base 3. The hoist 5 is provided with a wire rope 51, and the wire rope 51 pulls an object to be hoisted, such as a steel beam 6, through the pulley block 4.

The bracket 2 comprises a column 21 and a beam 22. The upright posts 21 may be provided in plural and spaced apart relation. The cross beam 3 is arranged at the upper end of the upright post 21. The cross beam 22 has a cavity 23 and a chute 24, and the chute 24 is communicated with the cavity 23. Two baffles 25 and two secondary baffles 26 are arranged in the accommodating cavity 23. One baffle 25 and one secondary baffle 26 are provided on each side of the chute 24. The baffle 25 is disposed at a distance from the sub-baffle 26. The secondary baffle 26 is closer to the chute 24 than the baffle 25. A plurality of balls 27 are provided between the shutter 25 and the sub shutter 26. The balls 27 protrude from the secondary baffle 26.

The base 3 comprises a bottom plate 31 and a lifting lug 32. The lifting lug plate 32 is connected with the bottom plate 31. The bottom plate 31 is disposed in the cavity 23 and is pressed against the balls 27 to be movable in the horizontal direction. The baffle 25 protrudes from the bottom plate 31. The two baffles 31 restrict the direction of movement of the bottom plate 31. The lug plate 32 is lifted and extends from the chute 24 to the outside of the cavity 23. The base plate 31 is connected with a plurality of reinforcing ribs 33. The utility model also comprises driving means (not shown in the figures) which drive the movement of the base 3.

The above is only a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model, and any modifications, equivalent substitutions or improvements within the spirit of the present utility model are intended to be covered by the claims of the present utility model.

Claims

1. Pile foundation underpinning low headroom cantilever hoist device, its characterized in that includes:

a bracket;

the base is arranged on the bracket in a horizontally movable manner;

the pulley block is connected with the base;

2. The pile foundation underpinning low clearance cantilever lifting device of claim 1, wherein said support comprises a column and a beam, said beam being disposed at an upper end of said column; the cross beam is provided with a containing cavity and a chute, and the base is arranged in the containing cavity and extends out of the containing cavity from the chute.

3. The pile foundation underpinning low clearance cantilever lifting device of claim 2, wherein the base comprises a bottom plate and a lifting lug plate, and the bottom plate is arranged in the accommodating cavity and can move in a horizontal direction; the lifting lug plate is connected with the bottom plate and extends out of the containing cavity from the sliding groove.

4. The pile foundation underpinning low clearance cantilever hoisting device according to claim 3, wherein a rolling device is arranged in the accommodating cavity and can be arranged in a rolling way; the bottom plate is pressed against the rolling device.

5. The pile foundation underpinning low headroom cantilever crane apparatus of claim 4, wherein the rolling means is a steel ball.

6. The pile foundation underpinning low clearance cantilever hoisting device of claim 5, wherein two baffles are arranged in the accommodating cavity, and the baffles protrude out of the bottom plate; the two baffles are respectively arranged on two sides of the bottom plate to limit the moving direction of the bottom plate.

7. The pile foundation underpinning low clearance cantilever hoisting device according to claim 6, wherein an auxiliary baffle is arranged in the accommodating cavity, the auxiliary baffle is arranged at intervals from the baffle, and the steel balls are arranged between the baffle and the auxiliary baffle; the steel balls protrude out of the secondary baffle plate and are in contact with the bottom plate.

8. A pile foundation underpinning low headroom cantilever crane apparatus as claimed in claim 3, wherein a plurality of reinforcing ribs are connected to the base plate.

9. The pile foundation underpinning low headroom cantilever crane apparatus of claim 1, further comprising a drive means, said drive means driving said base to move.