Vertical pile driver with pre-digging function for mounting highway protective fence

Abstract

The invention discloses a vertical pile driver with a pre-digging function for mounting a highway protective fence in the technical field of protective fence mounting equipment. The vertical pile driver comprises a movable base. A pre-digging assembly is mounted on the left side of a weight box, a pile driving assembly is welded to the center of the bottom of a lifting plate, a pile foundation centering assembly is welded to the bottom of the right side of a mounting frame, and a rubber buffer layer is bonded with the top of the weight box through glue. Due to the fact that the downward hammering force of an impact block driven by a telescopic cylinder is smaller than the downward hammering force of hydraulic cylinders, after pit digging and pile foundation pre-burying are completed, the hydraulic cylinders are used for hammering firstly, the hammering force is large, preliminary hammering is achieved, pile foundations are rapidly hammered into the ground; and before the pile foundations are hammered to the proper height, the hydraulic cylinders are closed, the telescopic cylinder is started, slight hammering is carried out, and the pile foundations are slowly hammered into the ground, so that the situations that the hammering force of the hydraulic cylinders is too large, the downward hammering lengths of the pile foundations are too large, exposed parts of the pile foundations are short, and subsequent guardrail installation cannot be completed can be avoided, and that the extending lengths of the pile foundations are the same is guaranteed.

Description

technical field [0001] The invention relates to the technical field of guardrail installation equipment, in particular to a vertical pile driver with the function of pre-digging a highway guardrail for installation. Background technique [0002] When installing the guardrail of the expressway, it is necessary to drive the pile foundation on the road surface, and then install the guardrail on the pile foundation, especially the verticality of the pile foundation (the installation specifications of the pile foundation are consistent, and when the guardrail is installed on site, there is no need to Adjustment) can ensure the convenience of installing the guardrail. Therefore, when driving into the pile foundation, in order to ensure the verticality of the pile foundation, workers need to hold the pile foundation for auxiliary operations, but the way of holding the pile foundation by hand is safe when driving. Therefore, we propose a vertical pile driver with the function of pre...

AI Technical Summary

Problems solved by technology

[0002] When installing the guardrail of the expressway, it is necessary to drive the pile foundation on the road surface, and then install the guardrail on the pile foundation, especially the verticality of the pile foundation (the installation specifications of the pile foundation are consistent, and when the guardrail is installed on site, there is no need to Adjustment) can ensure the convenience of installing the guardrail. Therefore, when driving the pile foundation, in order to ensure the verticality of the pile foundation, workers need to hold the pile foundation for auxiliary operations, but the way of holding the pile foundation by hand is safe when driving. Therefore, we propose a vertical pile driver with pre-excavation function for highway guardrail installation

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