Bottom pressure feeding device of full-circle needle beam trolley

Abstract

The invention relates to a bottom pressure feeding device of a full-circle needle beam trolley, belongs to the technical field of needle beam trolleys, and aims to solve the technical problem that concrete has voids, pitted surfaces and cavities when a full-circle needle beam trolley is used for lining bottom concrete in the prior art. The bottom pressure feeding device of the full-circle needle beam trolley comprises a conveying pump used for conveying high-pressure concrete and a pipeline system used for conveying the high-pressure concrete to all pouring points, and a discharging port of the conveying pump is communicated with a feeding port of the pipeline system through a conveying pipe. By means of the structure, high-pressure concrete is conveyed to the pipeline system through the conveying pump, then the high-pressure concrete is conveyed to all pouring points through the pipeline system, bubbles and accumulated water in the concrete are squeezed to the upper portion along with continuous injection of the high-pressure concrete, and the concrete at the bottom is compact and smooth. Due to the existence of the pressure, the bottom pressure feeding device of the full-circle needle beam trolley provided by the invention does not have voids, pitted surfaces and cavities on lining bottom concrete.

Description

technical field [0001] The invention belongs to the technical field of needle beam trolleys, and particularly relates to a bottom pressure feeding device of a full-circle needle beam trolley. Background technique [0002] Today, when the world's energy is increasingly in short supply, and the development and protection of rivers are receiving great attention, major water conservancy projects have emerged, and their comprehensive benefits in flood control, power generation, and shipping have begun to show; Various water conservancy project equipment is more and more humanized, automated, improving construction efficiency and quality, and reducing labor costs. The full-circle needle beam trolley, as an important member of the tunnel construction of the water conservancy project, is no exception. After years of development, the full-circle needle beam trolley has improved its performance in all aspects. However, when the existing full-circle needle beam trolley is lined with c...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a pressure feeding device at the bottom of a full-circle needle beam trolley, which is used to solve the technical problem of honeycomb pockmarks and cavities in the concrete when lining the bottom concrete of the full-circle needle beam trolley in the prior art

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