SU120191A1 - Plug chisel - Google Patents

Plug chisel

Info

Publication number
SU120191A1
SU120191A1 SU605248A SU605248A SU120191A1 SU 120191 A1 SU120191 A1 SU 120191A1 SU 605248 A SU605248 A SU 605248A SU 605248 A SU605248 A SU 605248A SU 120191 A1 SU120191 A1 SU 120191A1
Authority
SU
USSR - Soviet Union
Prior art keywords
chisel
plug
bit
paw
rod
Prior art date
Application number
SU605248A
Other languages
Russian (ru)
Inventor
В.М. Дубинин
Original Assignee
В.М. Дубинин
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by В.М. Дубинин filed Critical В.М. Дубинин
Priority to SU605248A priority Critical patent/SU120191A1/en
Application granted granted Critical
Publication of SU120191A1 publication Critical patent/SU120191A1/en

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  • Earth Drilling (AREA)

Description

Изобретение относитс  к области механизации подачи долота при турбинном бурении скважины.The invention relates to the field of mechanization of bit feeding during turbine drilling of a well.

Предлагаемое шарошечное долото отличаетс  от известиых конструкций тем, что ось шарнира малой лапы расположена непосредственно в корпусе долота. Такое выполнение долота, значительно упрошает механизм разворота его и обеспечивает большую надежность перевода долота из транспортного положени  в рабочее.The proposed roller bit differs from the lime structures in that the axis of the hinge of the small foot is located directly in the body of the bit. Such an embodiment of the bit considerably simplifies the mechanism of its reversal and provides greater reliability of transferring the bit from the transport position to the working position.

На фиг. 1 изображено вставное двзхшарошечное долото в рабочем положении, обш,ий вид; на фиг. 2-долото в транспортном положении, общий вид.FIG. 1 shows a double chisel bit in the working position, sheath, view; in fig. 2-chisel in transport position, general view.

Вставное долото состоит из корпуса /, соединенного при помоши резьбы с мзфтой 2. В корпусе расположен цилиндр 5 с фасонным поршнем 4, в штоке которого имеетс  проточка дл  прохода жидкости, стержень 5 и задерживающий механизм 6, имеющий форму шара. В нижней части шток поршн  выполнен в виде полуцилиндра, снабженного отверстием дл  оси 7, на которой шарнирио укреплена больша  лапа 8 с шарошкой . Мала  лапа 9 с шарошкой шарнирно соединена осью 10 непосредственно с муфтой. В цилиндре установлен также второй поршень 11, шток которого упираетс  в уступ малой лапы, когда она находитс  в транспортном положении. В концевой части муфта имеет коническую расточку, в теле муфты расположены каналы дл  прохода жидкости к забою.The plug-in bit consists of a body / connected by means of a thread 2. With a cylinder 5 with a shaped piston 4, in the rod of which there is a groove for the passage of fluid, a rod 5 and a ball-restraining mechanism 6. In the lower part, the piston rod is made in the form of a semi-cylinder, provided with a hole for the axis 7, on which the hinge is fixed to the large paw 8 with the roller cutter. Mala paw 9 with a roller cutter is pivotally connected by an axis 10 directly to the coupling. A second piston 11 is also installed in the cylinder, the rod of which rests on the ledge of the small paw when it is in the transport position. In the end part, the coupling has a conical bore, in the body of the coupling there are channels for the passage of fluid to the face.

Долото имеет два положени -транспортное и рабочее.. В транспортном положении больша  лапа с поршнем опускаетс  вниз - обе лапы отклонены к центру и занимают габариты, позвол ющие проходить внутри бурильных труб. В таком виде долото с турбобуром доходит до забо , при этом корпус выходит из башмака бурильных труб. После подачи .жидкости происходит нарастание давлени  жидкости и под вли нием этого развОлЧка лап в рабочее положение.The chisel has two positions — transport and operating. In the transport position, the large paw with the piston goes down — both legs are inclined towards the center and occupy dimensions that allow them to pass inside the drill pipe. In this form, the chisel with a turbo-drill comes to the bottom, and the body comes out of the drill pipe. After the supply of the liquid, the pressure of the liquid increases and under the influence of this expansion of the paws into the working position.

SU605248A 1958-08-02 1958-08-02 Plug chisel SU120191A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU605248A SU120191A1 (en) 1958-08-02 1958-08-02 Plug chisel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU605248A SU120191A1 (en) 1958-08-02 1958-08-02 Plug chisel

Publications (1)

Publication Number Publication Date
SU120191A1 true SU120191A1 (en) 1958-11-30

Family

ID=48392090

Family Applications (1)

Application Number Title Priority Date Filing Date
SU605248A SU120191A1 (en) 1958-08-02 1958-08-02 Plug chisel

Country Status (1)

Country Link
SU (1) SU120191A1 (en)

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