Flexible sealing water hammer for driving pile in water

Abstract

A flexible sealing water hammer for driving a pile in water comprises a ventilating pipe, a hydraulic cylinder support, a water hammer cylinder, a guide block, a flexible sealing cabin, an annular rib, an anvil block, a hydraulic cylinder, a flexible lifting chain, a shock absorption cushion and a hammer head. The 'water hammer'effect in the fluid mechanics is applied to a deep water pile driving device, and flexible systems including the flexible sealing cabin, the flexible lifting chain and the shock absorption cushion are ingenuously adopted. By means of the application of the flexible sealing cabin, the problem of motive sealing between the hammer head and the water hammer cylinder is solved, and manufacturing cost is greatly reduced. Meanwhile, the flexible sealing water hammer has the advantages of being low in energy consumption, low in noise, green, environmentally friendly and the like. Therefore, the flexible sealing water hammer has wide application prospects.

Description

technical field [0001] The invention belongs to the technical field of piling devices in pile foundation engineering. Background technique [0002] Commonly used piling hammers in engineering include: winch drop hammer, but its drop hammer efficiency is poor; steam hammer, but its noise is large; diesel hammer, serious pollution. In view of the above shortcomings, the above three piling hammers are rarely used in marine construction. [0003] Hydraulic hammer can be used for underwater piling, but its structure is complicated, energy consumption is big, and cost is high. The patent CN1888328A proposes the concept of water hammer, but because of the dynamic seal between the hammer head and the hammer barrel, the system has high requirements on the dimensional accuracy and shape and position tolerance of the structure, which is difficult to put into production practice. At the same time, the hammer head will damage the hydraulic cylinder due to impact It is very large, so it...

AI Technical Summary

Problems solved by technology

[0002] Commonly used piling hammers in engineering are: winch drop hammer, but its drop hammer efficiency is poor; steam hammer, but its noise is large; diesel hammer, serious pollution

In view of the above shortcomings, the above three piling hammers are rarely used in marine construction

[0003] Hydraulic hammer can be used for underwater piling, but its structure is complicated, energy consumption is large, and cost is high

The patent CN1888328A proposes the concept of water hammer, but because of the dynamic seal between the hammer head and the hammer barrel, the system has high requirements on the dimensional accuracy and shape and position tolerance of the structure, which is difficult to put into production practice. At the same time, the hammer head will damage the hydraulic cylinder due to impact Large, so lack of practical engineering significance

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