Diesel hammer body and pile cap buffer controlling method and connecting buffer structure

Abstract

The invention discloses a diesel hammer body and pile cap buffer controlling method. The buffer controlling method comprises the following steps: (1) a connecting buffer structure is arranged at the connecting portion between the diesel hammer body and the pile cap; (2) the connecting buffer structure is arranged on a movable rail of a piston, the connecting buffer structure is fixedly connected with the hammer body through a first connecting bolt, and the connecting structure is fixedly connected with the pile cap through a second connecting bolt; (3) a lower piston of the diesel hammer is moved back and forth. The lower piston reciprocates pushed by explosion of fuel, the lower piston directly acts on a steel brazing in an impact manner, and then returns; the strong vibration wave generated when the lower piston collides with the steel brazing is transmitted to the connecting buffer structure by the hammer body, then is transmitted to the pile cap to avoid damage to the hammer or thepile cap. The invention also provides a connecting buffer structure for implementing the above method. By optimizing structural design and separating an inertia system, the purpose of improving powerof a pile driver, reducing failure rate and prolonging the overall service life is realized by the diesel hammer body and pile cap buffer controlling method and the connecting buffer structure.

Description

technical field [0001] The invention relates to the technical field of pile driver equipment manufacturing, in particular to a buffer control method for a diesel hammer body and a pile cap and a connection buffer structure. Background technique [0002] Diesel hammer is a kind of construction machinery. It is a common mechanical equipment in construction. It mainly uses fuel explosion to push the piston to reciprocate to hammer piles. The weight of the piston ranges from several hundred kilograms to several tons. Sinking piles with a hammer should be hit lightly with a heavy hammer. If the heavy hammer hits hard, most of the hammering work will be absorbed by the pile body, the pile will not be easy to drive, and the pile head will be easily broken. There should be a certain ratio between the hammer weight and the pile weight, or the hammer stress should be controlled to prevent the pile from being damaged. The pile frame is a pile driving device that supports the pile bod...

AI Technical Summary

Problems solved by technology

The above-mentioned buffer structure protects many parts and components such as couplings, springs, washers, couplings, glands, fasteners, buffers, washers, lock washers, etc., and each part assists in the work at the same time to provide cushioning for the hydraulic hammer body The function and structure design are more complex

Due to the large number of components, complex assembly relationship, and large overall weight, some components are prone to fatigue and damage during high-speed and high-frequency piling work, which leads to the overall failure of the buffer structure. The overall structure of the hydraulic hammer is damaged, and it is not conducive to later maintenance and replacement

Images