A small all-electric trenchless horizontal directional drilling rig

A horizontal directional drilling rig, all-electric technology, applied in directional drilling and other directions, can solve the problems of high price and complex structure, and achieve the effects of easy operation, reducing work volume and improving construction efficiency.

Inactive Publication Date: 2016-04-20
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • A small all-electric trenchless horizontal directional drilling rig
  • A small all-electric trenchless horizontal directional drilling rig
  • A small all-electric trenchless horizontal directional drilling rig

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1, the present invention includes a cutting drill bit 1, a drill bit rotary cutting drive device, a buffer device, a post-soil screw conveying device, and a drill pipe jacking and dragging device. The cutting drill bit 1 is a hollow drill bit, and the cutting drill bit cone 2 is provided with a Drill bit rotary cutting drive device, the drill bit rotary cutting drive device is connected with a buffer device, the rear screw conveying device for soil is installed on the cutting bit 1 axis, and the rear end of the rear screw conveying device for the last section of soil is connected with the drill pipe jacking and dragging device , the drill pipe is jacked into the pullback device and connected to the power supply. The rotary cutting drive device of the drill bit completes the rotary drive of the cutting bit 1; when the cutting bit 1 encounters poor ground conditions, excessive resistance or unevenness, the buffer device plays a role of buffering; the rear screw ...

Embodiment 2

[0025]Embodiment 2, the middle of the cutting bit 1 is circular and hollow, including the cutting bit cone 2 of the front section, the helical cutting edge 24, the cutting bit outer circular cutter 10, the cutting bit inner cutter 11 and the cutting bit insert of the rear section. Barrel 25, the front end axis is provided with a cutting drill center cone 30, the cutting drill center cone 30 is fixedly connected with the cutting drill cone 2 through a bracket, the helical cutting edge 24 is arranged on the outer wall of the drill cone 2, and the cutting drill The outer circular cutter 10 is a tooth-shaped cutter integrally formed with the cutting drill cone 2, or a tapered scraper, which is evenly distributed and welded on the circumference of the front end of the cutting drill cone 2; the cutting drill inner cutter 11 is more than two The helical blades uniformly dispersed and welded on the central cone 30 of the cutting drill bit, the helical blades are suitable for areas that...

Embodiment 3

[0026] Embodiment 3, the drill rotary cutting driving device includes a thrust ball bearing 3 and a frameless motor 5, a front partition 4 is arranged between the cutting drill 1 and the frameless motor 5, and the front partition 4 is fixed on the shield by screws 31 27, the frameless motor 5 is fixedly installed on the front part of the shield 27 through the front partition 4, and the thrust ball bearing 3 is installed between the cutting drill 1 and the front partition 4 to provide its axial thrust; the frameless motor 5 is a hollow motor, including a frameless motor inner rotor 12, a frameless motor outer stator 13 and a frameless motor wire 26; the rear end cutting drill insert 25 of the cutting drill 1 is fixed inside the frameless motor inner rotor 12 by adhesive, The frameless motor 5 directly drives the cutting drill bit 1 to rotate. refer to Figure 1 to Figure 9 , and the rest are the same as the above-mentioned embodiment.

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PUM

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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, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B7/04
Inventor 周友行黄建铠罗昕尹伟杰周卫东
Owner XIANGTAN UNIV
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