Automatic butting device and butting method of cast-in-situ bored pile reinforcement cages

Abstract

The invention discloses an automatic butting device and butting method of cast-in-situ bored pile reinforcement cages. The butting method comprises the following steps that firstly, clamping elementsare manufactured; secondly, the reinforcement cages are connected in a butting manner; thirdly, main reinforcement of the upper reinforcement cage is sleeved with a sleeve; fourthly, an automatic screwing mechanism is installed, an outer shell and a driven gear are sequentially opened so that a locking sleeve at the center of a driven gear can tightly wrap the sleeve, then, the driven gear is tightened through a self-locking press-button switch, an upper sliding shell is closed to achieve locking; and fifthly, a play button is started, a driving gear drives the driven gear to rotate until a connection sleeve at the end of the upper reinforcement cage is screwed to the reinforcement end of the lower reinforcement cage, automatic stopping is carried out, and therefore butting of the upper reinforcement cage and the lower reinforcement cage is achieved. According to the automatic butting device and butting method of the cast-in-situ bored pile reinforcement cages, the butting speed of thereinforcement cages and the pile foundation construction speed are accelerated, operation is easy and convenient for workers on the scene, time and labor are saved, the pile-forming time is shortened, cost of a mechanical stage machine-team and the like is saved, the construction period is shortened, and the construction economical benefits are remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of bored pile construction, and in particular relates to an automatic docking device and a docking method for reinforced concrete bored pile reinforcement cages. Background technique [0002] Reinforced concrete cast-in-place piles are currently widely used in foundation treatment projects for housing construction, railways, highway bridges and culverts, and municipal engineering. Among them, the reinforced concrete cast-in-place piles used in the design of railways, highways and municipal bridges and culverts have large pile diameters, large main reinforcement diameters, and relatively large steel bars. Due to the characteristics of high density and long pile body, the weight and length of the reinforced cage made at one time are relatively large, which makes it very difficult to install the reinforced cage at one time, and the safety risk during hoisting is large. Therefore, the construction of longer reinf...

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Problems solved by technology

[0004] When the existing steel cages are docked, it is impossible to ensure that the upper and lower alignment of the connecting steel bars is accurate after the upper and lower steel cages are in place, and there are often deviations. When the upper and lower steel cages are butted, it is inevitable that there will be a gap between the upper and lower ends of the local steel bars, which will reduce the bite length between the steel bar thread and the sleeve, weaken the connection strength at the joint, and cannot guarantee the quality of the joint. Moreover, when the alignment of the connecting steel bars of the upper and lower steel cages is inaccurate, it will also cause cumbersome on-site operations for workers, time-consuming and laborious, and slow docking speed, thereby affecting the construction speed of the pile foundation.

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