Eccentric moment adjustable hydraulic vibration pile hammer

Abstract

The invention relates to a hydraulic vibration pile hammer with adjustable eccentric moment. The exciter includes a box body, an eccentric moment adjustment mechanism, a vibration dividing mechanism and a hydraulic drive mechanism including a hydraulic motor and a driving gear. The vibration dividing mechanism is set as The front and rear sub-vibrators with directional inertia combined with two shafts in parallel and coaxial are driven by two hydraulic motors through two driving gears respectively, and corresponding eccentric torque adjustment mechanisms are set up to control the hydraulic pressure. The amount of oil supplied from the oil cylinder to the large chamber or small chamber controls the telescopic position of the piston rod, and realizes the continuous stepless adjustment control of the eccentric moment from "0-maximum" and "maximum-0", so as to realize the adjustment of the working amplitude of the hydraulic vibration pile hammer. Optional adjustment control can meet the high-efficiency construction requirements under different geological conditions, solve the disadvantage that the hydraulic vibration pile hammer must pass through the resonance area when starting and stopping, and help ensure the effective working life of the hydraulic vibration pile hammer structure. Improve work efficiency and work applicability, and have strong practicability.

Description

technical field [0001] The invention relates to a mechanical construction equipment, in particular to an eccentric moment suitable for use in the construction of steel piles such as pipe piles, I-shaped piles, and sheet piles and concrete pouring piles in the foundation construction of buildings or structures. Adjustable hydraulic vibratory pile hammer. Background technique [0002] At present, in the foundation construction of buildings or structures, especially in the construction process of setting steel piles such as pipe piles, I-shaped piles, and sheet piles, and concrete pouring piles, the hydraulic vibrating pile hammer is commonly used. It is widely used in the foundation construction of densely populated urban buildings due to its advantages of high frequency, fast attenuation of vibration waves, small influence range and low noise generation. However, it has been found in practice that there are currently two major defects in the hydraulic vibrating pile hammers ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the shortcomings of the existing hydraulic vibration pile hammer, to provide a stepless and continuously adjustable amplitude, which can avoid resonance phenomenon when starting and stopping, which is beneficial to improve work applicability and ensure mechanical components The normal working life and the eccentric torque adjustable hydraulic vibrating pile hammer which improves the working efficiency

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