SU926217A1

SU926217A1 - Device for reaming holes in soil

Info

Publication number: SU926217A1
Application number: SU802954668A
Authority: SU
Inventors: Григорий Павлович Король; Петр Евстафьевич Настич; Ефим Израилевич Подольский; Николай Васильевич Гудзенко; Юрий Владимирович Галата; Людмила Аркадьевна Портная
Original assignee: Korol Grigorij P; Nastich Petr E; Podolskij Efim; Gudzenko Nikolaj V; Galata Yurij V; Portnaya Lyudmila A
Priority date: 1980-07-09
Filing date: 1980-07-09
Publication date: 1982-05-07

Description

II

Изобретение относитс к землеройным машинам, в частности к устройствам дл буровых работ при возведении свайных фундаментов.The invention relates to earthmoving machines, in particular to devices for drilling operations during the construction of pile foundations.

Известно устройство дл уширени скважин в грунте, включающее штангу со шнеком, установленную во вращающейс , вьшолненной с окнами трубе-кожухе , опорную плиту со штыр ми и рабочий орган, шарнирно прикрепленный к наружной поверхности трубы-кожуха 1 ,A device for the broadening of wells in the ground is known, comprising a rod with a screw installed in a rotating casing tube with windows, a support plate with pins and an operating member hinged to the outer surface of the casing pipe 1,

Недостатком этого устройства вл етс то, что его конструкци не обеспечивает непрерывной выдачи грунта из трубы-кожуха на шнек буровой колонны в св зи с образованием пробок в пространстве между ышеком расширшгел и.концом буровой колонны.A disadvantage of this device is that its design does not ensure the continuous delivery of soil from the pipe-casing to the auger of the drill string in connection with the formation of traffic jams in the space between the drill-tube and the end of the drill string.

Наиболее близким к предлагаемому вл етс устройство дл уширени скважин в грунте, включающее шнек, уста новленный во вращающейс трубе-кожухе, опорную плиту, вилку с хвостовиком и рабочий с режущими звень ми иClosest to the present invention is a device for broadening wells in the ground, including an auger installed in a rotating pipe-casing, a support plate, a fork with a shank and a worker with cutting links and

т гами, шарнирно прикрепленный к труб&кожуху и вилке и между собой 21 . Этот расширитель вл етс более эффективным в работе, однако и он не гарантирует достаточной безопасности работ , так как не обеспечивает возможности извлечени на поверхность в спучае поломки рабочего органа.t gami pivotally attached to pipes & casing and plug and between themselves 21. This spreader is more efficient in operation, however, it does not guarantee sufficient safety of work, since it does not provide the possibility of extraction to the surface in the event of a breakdown of the working body.

Цель изобретени - повышение эффек10 тивности извлечени устройства из скважины при поломке рабочего органа.The purpose of the invention is to increase the efficiency of removing the device from the well in case of breakdown of the working member.

Указанна цепь достигаетс тем, что в устройстве дл уширени скважин в грунте, включающем шнек, установле 15 ный во вращающейс трубе-кожухе, опорч ную плиту, вилку с хвостовиком и рабочие орган с режущими звень ми и т гами, шарнирно прикрепленный к трубе-кожуху и вилке и между собой, т ги и режухоие This chain is achieved by the fact that in the device for the broadening of wells in the ground, including the auger, installed in the rotating tube-casing, the support plate, the plug with the shank and the working body with cutting links and rods, pivotally attached to the casing tube and plug and between themselves, ti g and rezhuhoie

Claims

20 links are installed with an inclination in one direction, at the same time those g n are made with grooves in which the hinges of the cutting links are mounted. On fga. 1-3 shows the proposed device. The device contains a screw 1, mounted in a rotating pipe, embedded into the entrance windows, a casing pipe 2, a support plate 3, a plug 4 with a shank 5 and a working member with cutting links in pipes and 7. Cutting links 6 are attached to the pipe casing 2 connecting hinges 8. The connection of tg 7 with plug 4 is made through connecting hinges 9 T gi 7 to the cutting links 6 are inclined in one direction and interact between each other through split hinges made in the form of joints with open grooves 10 t g 7 with cylindrical lugs 11 links EDH 6. risoedinitelnye hinges 8 are mounted in the upper part of shroud pipe 2 and prisoedinitelyvye hinge 9 located between the input windows and soedinitelnymisharnirami 8 and offset with respect to the latter in the opposite direction by rotating the device. The rigs 7 and the cutting links b are located tangentially with respect to the pipe-casing 2. With the aid of the shank 5, the device is attached to the rod of the drilling rig and lowered into a previously drilled well. Under the action of the axial pressure transmitted by the machine, the support plate 3 is placed on the bottom of the well and fixes the screw 1 in a stationary state. When the device p: o clockwise rotates, the fork 4 advances on the pipe-housing 2 and through the drum 7 means deflects the cutting links 6 to the well machines, thus ensuring milling of the broadening cavity. The shavings formed during this process roll down along the inclined surface of the bottom and through the entrance windows into the internal cavity of the pipe-casing 2, where it rises along the screw 1. Towards the lower end of the drill rod and extends to the surface. When the working body breaks down, for example when the connecting hinge 9 of one of the t 7 is destroyed, the cutting link 6 connected with it, under the action of its own weight, turns in the hinge 8 and lowers to its original position, while the open groove 10 tons 7 and the cylindrical stop 11 of the cutting link 6 is disconnected, allowing the remaining parts of the working body to be added and the device to be freely removed from the wells. The proposed device reduces the costs associated with the losses of the expanders and the need to duplicate emergency wells, since the remaining devices in them prevent the use of these wells for their intended purpose. The invention The device for the broadening of wells in the ground, including a screw installed in a rotating pipe-casing, supporting. stove, fork with. the shank and the working body with cutting units and rods, hingedly connected with the casing pipe, plug and each other, characterized in one of them, in this case, the tongs are made with grooves in which the hinges of the cutting links are installed. Sources of information taken into account during the examination 1. USSR author's certificate number 298724, class E 21 V 9/22, 1969.

2. USSR author's certificate for application number 2827179 / 22-03, cl. E 21 V 9 ° / 22, 1979 (prototype).

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