Hydraulic pile driver for highway guardrails

Abstract

The invention relates to a hydraulic pile driver for highway guardrails. The hydraulic pile driver for the high-way guardrails comprises a pile frame, a four-wheel chassis for supporting the pile frame, a hydraulic hammer, a hinge type sliding frame driving the hydraulic hammer to slide on the pile frame and a stretching and retracting mechanism which is arranged on the four-wheel chassis and used for driving the pile frame to longitudinally and transversely swing for adjustment on the horizontal plane. The pile frame comprises a connecting plate, a swing arm, an upper guide rail, a lower guide rail, a swing arm oil cylinder and a guide rail oil cylinder. One end of the swing arm is hinged to the upper end of the connecting plate, and the other end of the swing arm is hinged to the hinge type sliding frame. The upper end of the lower guide rail is hinged to the upper guide rail. The lower end of the lower guide rail is hinged to the stretching and retracting mechanism. The hinge type sliding frame is matched with the lower guide rail in a matched manner. The upper end of the swing arm oil cylinder is hinged to the middle of the swing arm. The lower end of the swing arm oil cylinder and the lower end of the connecting plate are hinged to the stretching and retracting mechanism together. The upper end of the guide rail oil cylinder is hinged to the upper guide rail, the lower end of the guide rail oil cylinder is hinged to the stretching and retracting mechanism, and therefore the upper guide rail and the lower guide rail are driven by the guide rail oil cylinder to ascend and descend.

Description

technical field [0001] The invention relates to the field of pile driver equipment, in particular to a highway guardrail hydraulic pile driver. Background technique [0002] According to the construction situation in our country, the time left for guardrail construction in the same period of expressway construction is generally very short, and the construction period is tight, so the piling machine is required to have higher operating efficiency. The existing domestic highway guardrail piling machines are mainly of the drop hammer type, which can be divided into two types: vehicle-mounted and self-propelled. The vehicle-mounted pile driver is represented by the Isuzu chassis pile driver produced by Shenyang Modern Transportation Facilities Co., Ltd. Self-propelled hydraulic pile drivers mainly include: YDBZ-180 self-propelled hydraulic pile drivers produced by Xuzhou Bada Highway Engineering Machinery Facility Manufacturing Factory, and self-propelled pile drivers produced ...

AI Technical Summary

Problems solved by technology

[0003] The working efficiency of these machines is mainly reflected in the movement state of the hammer drop process. The free fall state is the highest efficiency limit. Due to the light chassis, the pile driver generates a large vibration when the drop hammer hits the pile body, and the precision of the drop hammer is low, which leads to construction failure. decline in quality

In addition, the existing pile drivers still have the problem of low degree of automation. Looking at the development of construction machinery at home and abroad, for road construction machinery, it is the development trend to increase the degree of automation, reduce the labor intensity of workers, and improve the construction quality.

Images