Automatic drop hammer pile driver

Abstract

The invention relates to an automatic drop hammer pile driver and belongs to the field of building construction equipment. The automatic drop hammer pile driver comprises a motor, a lifting frame, a rotating plate, a lifting device, a tension sensor and a PLC (programmable logic controller) control system. The lifting device is mounted on the rotating plate, ascending and descending movements of a pile hammer are realized by means of detachable connection between the lifting frame and the lifting device, and repetition of the ascending and descending movements of the pile hammer is further realized by the aid of the rotating plate. By the aid of the tension sensor and the PLC control system, an automatic steel wire pay-off function of a winch can be controlled along with increase of piling depth, and accordingly automation of the drop hammer pile driver is realized, labor cost of the pile driver is reduced while failure rate of the pile driver in mechanical use is decreased, and piling efficiency is improved evidently according to field test. Moreover, the automatic drop hammer pile driver is convenient to use, simple in structure and suitable for popularization and utilization in engineering construction.

Description

technical field [0001] The invention belongs to the field of building construction equipment, and relates to a pile driver, in particular to an automatic drop hammer pile driver. Background technique [0002] In the prior art, the drop hammer pile driver system mainly consists of a pile hammer, a pile frame 1-6, a hoist 1-1, an operating table and some auxiliary equipment. The pile hammer is hoisted by the wire rope, and connected with the pile frame through the fixed pulley on the top of the column at the front of the pile frame. . There are two guide rods and a fixed pulley in front of the pile frames 1-6, which are used to control the direction of piling, so that the steel wire rope will not swing randomly and cause safety hazards, and the pile hammer can be lifted and lowered accurately according to the design direction. The pile frame is provided with a manual operation platform, and when construction workers perform piling operations, they operate the clutch operatio...

AI Technical Summary

Problems solved by technology

[0004] The drop hammer pile driver in the prior art usually further controls the lifting and falling action of the pile hammer by manually controlling the clutch operating lever 1-7 and the brake operating lever 1-5, which greatly increases the construction cost, and through the clutch operating lever and the braking operating lever 1-5 The continuous and repeated control of the brake operating lever causes the motor to be easily damaged, and the failure rate of the pile driver is relatively high

Images