A small all-electric trenchless horizontal directional drilling rig

Abstract

A small-sized full electric non-excavation horizontal oriented drill rig belongs to a non-excavation construction machinery for paving, replacing and repairing various underground pipelines. The technical key points are that the small-sized full electric non-excavation horizontal oriented drill rig comprises a cutting drill bit (1), a drill bit rotary cutting driving device, a buffer device, a soil rear postposition spiral conveying device and a drill rod propelling pulling-back device; the cutting drill bit (1) is of a hollow drill bit; the drill bit rotary cutting driving device is arranged behind a cutting drill bit conical drum (2); the buffer device is connected behind the drill bit rotary cutting driving device; the soil postposition spiral conveying device is arranged on the axis of the cutting drill bit (1); the rear end of the last section of the soil postposition spiral conveying device is connected with the drill bit propelling pulling-back device connected with a power supply. The output of the postposition spiral soil cutting adopts full electric driving, the structure can be simplified, and the production cost is reduced; a work pit is firstly excavated during work, and the holing and pulling-back are performed at one step in the horizontal direction; the guiding and hole expanding processes are omitted, the construction progress can be accelerated, the construction efficiency can be improved, and the small-sized full electric non-excavation horizontal oriented drill rig is widely used for paving and updating urban and rural underground pipelines.

Description

technical field [0001] The invention relates to a non-excavation horizontal directional drilling machine in the field of non-excavation drilling machines, in particular to a small all-electric non-excavation horizontal directional drilling machine. Background technique [0002] At present, with the rapid development of urbanization in various countries around the world and the enhancement of social environmental protection awareness, the laying or updating of pipelines such as water power, electricity, communications, sewage, gas, oil, and natural gas in cities and towns needs to be done without damaging the road surface or The laying is completed under the condition of a small area of ​​damage, and the open-cut pipe laying will bring traffic, environmental, economic and social problems, which makes the non-excavation underground pipe laying industry develop rapidly, become more and more popular, and be widely used, and Domestic investment costs are increasing year by year, ...

AI Technical Summary

Problems solved by technology

However, most of the non-excavation horizontal directional drilling rigs used in the field of trenchless drilling rigs at home and abroad are hydraulically driven and integrated on a crawler-type walking machine, including hydraulic stations, cabs, chassis, grippers, Hole reamer, guide system, mud pump, etc., have complete functions, relatively complicated structure, and very expensive

Images