SU1609932A1

SU1609932A1 - Borehole making device

Info

Publication number: SU1609932A1
Application number: SU884625308A
Authority: SU
Inventors: Юрий Петрович Волков
Original assignee: Саратовский политехнический институт
Priority date: 1988-12-26
Filing date: 1988-12-26
Publication date: 1990-11-30

Abstract

Изобретение относитс к строительству и может быть использовано дл бурени скважин, преимущественно в мерзлых и плотных грунтах. Цель изобретени - размещение в них фундаментов различных инженерных сооружений. Устройство включает корпус /К/ с кернообразующим инструментом и винтовой лопастью на наружной поверхности, механизм удержани корпуса в виде штанги /Ш/ 4 с винтовым наконечником, расположенной соосно К, и привод вращени и осевого перемещени К и Ш 4. В Ш 4 выполнены проточки 10 на наружной поверхности, центральный канал и радиальные отверсти 11. В проточках 10 размещены сегменты 9, в радиальных отверсти х 11 - подпружиненные толкатели 7, а в центральном канале - вал 5 с кулачком 6 на конце. При вращении К образуетс керн, по оси которых размещена Ш 4, а при вращении вала 5 толкатели 7 взаимодействуют с кулачком 6, выдвигаютс и сегменты 9, скрепленные с толкател ми 7, подрезают керн, надежно закрепл ее в К. 3 ил.The invention relates to the construction and can be used for drilling wells, mainly in frozen and dense soils. The purpose of the invention is to place the foundations of various engineering structures in them. The device includes a housing / K / s with a core-forming tool and a screw blade on the outer surface, a housing holding mechanism in the form of a rod / W / 4 with a screw tip located coaxially K, and a rotation and axial movement actuator K and W 4. The W 4 is grooved 10 on the outer surface, the central channel and the radial holes 11. In the grooves 10 there are segments 9, in the radial holes 11 there are spring-loaded pushers 7, and in the central channel there is a shaft 5 with a cam 6 at the end. When K is rotated, a core is formed, along the axis of which W 4 is located, and when the shaft rotates 5, the pushers 7 interact with the cam 6, the segments 9 move forward, fastened with the pushers 7, cut the core, securely fastened it in K. 3 Il.

Description

Фаг.1Phage.1

Фаг.гPhage.g

Claims

Claim

A device for the formation of wells, including a housing with a core-forming tool and a helical blade on the outer surface, the core retention mechanism c. in the form of a rod with a screw tip located coaxially with the housing, and a drive for rotation and axial movement of the housing and the rod, characterized in that, in order to increase the reliability of core extraction, grooves are made on the outer surface, the central channel and radial holes, while the device is equipped with segments installed in the grooves of the rod, spring-loaded pushers, fastened to the segments and placed in radial holes, and a shaft with a cam at its end, located in the Central channel of the rod with awn rotation and engagement with the cam .tolkatelyami for extension segments.

FIG. 1 if

Aa

Figure 2