CN-117286881-B - Hoisting and lowering device for bored pile reinforcement cage and construction method

CN117286881BCN 117286881 BCN117286881 BCN 117286881BCN-117286881-B

Abstract

The application relates to the technical field of cast-in-place pile reinforcement cage lowering, in particular to a cast-in-place pile reinforcement cage hoisting and lowering device and a construction method. The base is arranged at the pile hole, the positioning hole is opposite to the pile hole coaxially, the steel bar cage penetrates through the positioning hole, the positioning claw slides to clamp and position the steel bar cage, the steel bar cage is opposite to the pile hole coaxially, the conveying crawler belt is abutted to the steel bar cage when the positioning claw clamps the steel bar cage, and the moving direction of the conveying crawler belt is consistent with that of the steel bar cage. The steel reinforcement cage is gradually lowered, drives the conveying crawler belt and the rotating wheels to rotate, so that friction force between the conveying crawler belt and the steel reinforcement cage is reduced, the conveying crawler belt is protected, the lowering of the steel reinforcement cage is not affected, and the position accuracy of the steel reinforcement cage in the lowering process can be guaranteed.

Inventors

WAN CHUANLIANG
Wei Houyi
Zhao Tou
CUI RONGFENG
WANG BAOTONG
XIA GUANGYI
GAO RONGHAI
HUANG JICHENG

Assignees

江苏雷威建设工程有限公司

Dates

Publication Date: 20260505
Application Date: 20231013

Claims (3)

1. The hoisting and lowering device for the bored pile reinforcement cage is characterized by comprising a base (1), wherein a positioning hole (11) is formed in the base (1), a positioning claw (2) for clamping the reinforcement cage is horizontally and slidably connected onto the base (1), two rotating wheels (31) are arranged on one surface, facing the reinforcement cage, of the positioning claw (2), the rotating wheels (31) are distributed in the vertical direction, and conveying tracks (32) for abutting against the reinforcement cage are wrapped outside the two rotating wheels (31); The positioning claw (2) is provided with a mounting plate (4), the mounting plate (4) is vertically provided with an adjusting groove (41), the adjusting groove (41) is rotationally connected with an adjusting screw (42), the adjusting screw (42) is provided with two sections of threads with opposite screw threads, the two sections of threads are respectively provided with a screw seat (43), and the two rotating wheels (31) are respectively connected to the two screw seats (43) in a rotating way; The mounting plate (4) is connected with a tensioning wheel (33) in a sliding manner, the sliding direction of the tensioning wheel (33) is perpendicular to the direction of the adjusting groove (41), and the conveying crawler belt (32) passes by the tensioning wheel (33); The tensioning screw rod (44) perpendicular to the adjusting screw rod (42) is rotationally connected to the mounting plate (4), a tensioning seat (45) is mounted on the tensioning screw rod (44), and the tensioning wheel (33) is rotationally connected to the tensioning seat (45); the tensioning screw rod (44) is connected with the adjusting screw rod (42) through a bevel gear pair; The positioning claw (2) is provided with a plurality of positioning gears (14) which are meshed with the positioning claws (2) in a one-to-one mode, the positioning claws (2) are uniformly distributed on the base (1), the base (1) is rotationally connected with an annular gear ring (12), the base (1) is rotationally connected with positioning screws (13) which are in one-to-one correspondence with the positioning claws (2), positioning seats (15) are arranged on the positioning screws (13), the positioning claws (2) are connected with the positioning seats (15), and a starting motor (5) for driving the annular gear ring (12) to rotate is arranged on the base (1).
2. The bored pile reinforcement cage hoisting and lowering device according to claim 1, wherein the mounting plate (4) is horizontally and slidably connected to the positioning claw (2), and a buffer spring (46) is connected between the mounting plate (4) and the positioning claw (2).
3. A method for hoisting and lowering a bored pile reinforcement cage, which is characterized in that a lifting machine lifts the reinforcement cage vertically and transports the reinforcement cage to a pile hole by adopting the hoisting and lowering device for the bored pile reinforcement cage according to any one of claims 1-2; the base is arranged at the pile hole, and the positioning hole is coaxially opposite to the pile hole; The reinforcement cage passes through the positioning hole; Starting a motor, and clamping and fixing the side wall of the reinforcement cage by a positioning claw; And the crane lowers the reinforcement cage into the pile hole.

Description

Hoisting and lowering device for bored pile reinforcement cage and construction method Technical Field The application relates to the technical field of cast-in-place pile reinforcement cage lowering, in particular to a cast-in-place pile reinforcement cage hoisting and lowering device and a construction method. Background The bored pile is a pile formed by forming pile holes in foundation soil on an engineering site through mechanical drilling, steel pipe soil squeezing, manual excavation or other means, placing a reinforcement cage in the pile holes and pouring concrete, and the bored pile can be divided into a plurality of types of immersed tube bored piles, hole digging bored piles and the like according to different pore-forming methods, wherein the reinforcement cage needs to be placed in the bored holes before the bored piles are poured. The related art can refer to China patent with publication number of CN213571925U, and discloses a segmental lowering system of a bored concrete pile reinforcement cage, which comprises hoisting equipment, a fixing piece, a positioning assembly, a positioning data acquisition device, an inclination data acquisition device and two display devices, wherein a cab is arranged on the hoisting equipment, the fixing piece is arranged on the hoisting equipment and is used for fixing the reinforcement cage, the positioning assembly is arranged on the side of a pile hole and is used for positioning the reinforcement cage, the positioning data acquisition device is arranged at the top end of the hoisting equipment and is used for acquiring positioning data of the reinforcement cage through the positioning data acquisition device, the inclination data acquisition device is arranged on the fixing piece and is used for acquiring inclination data in the lowering process of the reinforcement cage through the inclination data acquisition device, the two display devices are respectively arranged in the cab of the hoisting equipment and on one side of the pile hole, and the control unit is arranged in the cab and is connected with the positioning data acquisition device, the inclination data acquisition device and the display devices. The positioning assembly is arranged in the device, but mainly corrects and positions the reinforcement cage when the reinforcement cage is connected, and the positioning accuracy of the reinforcement cage in the lowering process is still poor. Disclosure of Invention In order to improve the precision in the process of lowering the reinforcement cage, the application provides a device for hoisting and lowering the reinforcement cage of a bored pile and a construction method. The application provides a hoisting and lowering device for a bored pile reinforcement cage, which adopts the following technical scheme: The utility model provides a drilling bored concrete pile steel reinforcement cage hoist and mount device, includes the base, the locating hole has been seted up on the base, horizontal sliding connection has the locating claw that is used for centre gripping steel reinforcement cage on the base, the locating claw is equipped with two rotation wheels towards the one side of steel reinforcement cage, rotation wheels are arranged along vertical direction, and two rotation wheels wrap up outward and have the conveyor track that is used for contradicting with the steel reinforcement cage. Through adopting above-mentioned technical scheme, the base is installed in stake hole department to make locating hole and stake hole coaxial just right, the steel reinforcement cage passes the locating hole, and the locating claw slides and carries out the centre gripping location to the steel reinforcement cage, makes steel reinforcement cage and stake hole coaxial just right, and when the locating claw pressed from both sides tight to the steel reinforcement cage, carries the track and contradicts with the steel reinforcement cage, and carries the direction of motion of track and the direction of motion of steel reinforcement cage unanimity. The steel reinforcement cage is gradually lowered, drives the conveying crawler belt and the rotating wheels to rotate, so that friction force between the conveying crawler belt and the steel reinforcement cage is reduced, the conveying crawler belt is protected, the lowering of the steel reinforcement cage is not affected, and the position accuracy of the steel reinforcement cage in the lowering process can be guaranteed. Preferably, the positioning claw is provided with a mounting plate, the mounting plate is vertically provided with an adjusting groove, an adjusting screw is rotationally connected to the adjusting groove, two sections of threads with opposite screw threads are arranged on the adjusting screw, screw bases are respectively arranged on the two sections of threads, and two rotating wheels are respectively connected to the two screw bases in a rotating mode. Through adopting above-mentioned technical scheme, oper