High strain hammering device

Abstract

The invention relates to a high strain hammering device, which comprises a hook and a leading bogie, wherein, the hook comprises an intermediate arm and two symmetrically arranged spoon-shaped arms; the intermediate arm is hinged with a clamped position of the two spoon-shaped arms; the leading bogie comprises a guide rail which limits the motion direction of a heavy punch, supporting legs which support a body of the leading bogie, and a pedestal which is integrated with various supporting legs into a whole; the guide rail is fixedly connected with the supporting legs; and cable wires are connected to the supporting legs, pass through the top of the leading bogie and are connected with the intermediate arm of the hook. The high strain hammering device avoids damage of a lifting device due to instant force release, thereby being favorable for protecting the lifting device; moreover, due to arrangement of the leading bogie, the heavy punch is driven to move along the direction limited by the guide rail of the leading bogie during the lifting and falling process and is effectively guaranteed to fall on the center of a foundation pile to be measured, thereby eliminating the potential safety hazard that the heavy punch is fallen off after falling and being favorable for improving the detection safety.

Description

technical field [0001] The invention relates to the mechanical field, in particular to a high-strain hammering device. Background technique [0002] In the quality inspection of pile foundation engineering, the high-strain dynamic inspection method of foundation pile is usually used to detect the vertical compressive bearing capacity of foundation pile and the structural integrity of pile body in pile foundation. When using this method for detection, a hammering force must be applied to the foundation pile to be tested. figure 1 It is a structural schematic diagram of a high-strain hammering device in the prior art. like figure 1 As shown, the existing high-strain hammering device includes a release hook 100 and a weight 200 , one end of the weight 200 is suspended on the release hook 100 , and the upper part of the release hook 100 is connected with a lifting device 300 . During the actual detection process of the high-strain dynamic detection method for foundation piles...

AI Technical Summary

Problems solved by technology

[0003] 1. Due to the instant disengagement of the decoupling, the heavy hammer falls instantly, that is, the lifting equipment releases the force instantly under the stressed state, which may easily cause damage to the lifting equipment;

[0004]2. When the heavy hammer falls on the foundation pile, the axis of the heavy hammer and the axis of the foundation pile are likely to be out of alignment, resulting in eccentric hammering , affecting the high-strain dynamic detection data. In addition, the axis of the hammer and the axis of the foundation pile are not on the same line, which also makes the hammer fall easily, posing a safety hazard

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