NO117138B

NO117138B -

Info

Publication number: NO117138B
Application number: NO0522/68A
Authority: NO
Inventors: E Svendsen
Original assignee: Elektrokemisk As
Priority date: 1968-02-10
Filing date: 1968-02-10
Publication date: 1969-07-07
Also published as: YU32802B; FR2001708A1; YU26069A; ZM869A1; GB1209133A; JPS4827259B1; US3520978A

Description

Borlås for dypbrønnsboring. Drill lock for deep well drilling.

Foreliggende oppfinnelse angår borlåser bestemt for dypbrønnsboring, hvilke borlåser består av to i boreretningen i forhold til hverandre til en viss grad bevegelige deler, av hvilke den ene er forbundet med den for borets betjening bestemte wire, mens den annen utgjør feste for boret. Nærmere bestemt angår oppfinnelsen sådanne borlåser av ovenfor angitte slag hvor den ene av nevnte låsdeler er forsynt med et sylinderformet parti, i hvilket et stempelliknende parti av den annen del er forskyvbart, og hvor det til den førstnevnte låsdels ene ende er festet en forholdsvis kort stålwire, som løper gjennom en sentral kanal i den annen låsdels stempelliknende parti, og som med sin annen ende er festet til et legeme som er aksielt forskyvbart i et sentralt, langsgående hulrom i sistnevnte parti, således at låsdelenes bevegelse i retning fra hverandre er begrenset ved nevnte legemes anslag mot hulrommet der dettes ene ende er begrenset av flaten av det stempelliknende parti. The present invention relates to drill locks intended for deep well drilling, which drill locks consist of two parts that move in relation to each other to a certain extent in the direction of drilling, one of which is connected to the wire determined for the operation of the drill, while the other forms a fixture for the drill. More specifically, the invention relates to such mortise locks of the type indicated above where one of said lock parts is provided with a cylindrical part, in which a piston-like part of the other part is displaceable, and where a relatively short steel wire is attached to one end of the first-mentioned lock part , which runs through a central channel in the piston-like part of the second locking part, and which is attached with its other end to a body which is axially displaceable in a central, longitudinal cavity in the latter part, so that the movement of the locking parts in the direction of each other is limited by said body's abutment against the cavity where one end of this is limited by the surface of the piston-like part.

Oppfinnelsen har til hensikt å tilveie-bringe en borlås av nærværende slag, som, samtidig med at den har stor styrke, mu-liggjør en hurtig utskiftning av de deler av denne som er særlig utsatt for påkjenning og slitasje. The purpose of the invention is to provide a mortise lock of the present type, which, at the same time as having great strength, enables a rapid replacement of the parts thereof which are particularly exposed to stress and wear.

Oppfinnelsen karakteriseres i hoved-saken ved at den sentrale kanal er utformet i en hylse som er skrudd inn i den ene ende av det stempelliknende parti som stikker inn i det sylinderformede parti, hvilken hylse har en innvendig endeflate som danner anslagsflate for det i hulrommet forskyvbare legeme. The invention is mainly characterized by the fact that the central channel is designed in a sleeve which is screwed into one end of the piston-like part which protrudes into the cylindrical part, which sleeve has an inner end surface which forms a contact surface for the displaceable in the cavity body.

Ifølge en hensiktsmessig utførelses-form av oppfinnelsen utgjøres det stempelliknende parti av en hul sylinder, i hvis ene ende er innskrudd den med anslagsflate forsynte hylse, og i hvis annen ende er innskrudd et organ bestemt til å holde boret fast, således at hulsylinderens indre danner det hulrom hvori det legeme som er forbundet med wiren er forskyvbart. According to an appropriate embodiment of the invention, the piston-like part is made up of a hollow cylinder, into one end of which is screwed the sleeve provided with a stop surface, and into the other end of which is screwed an organ designed to hold the drill firmly, so that the interior of the hollow cylinder forms the cavity in which the body connected to the wire is displaceable.

Med fordel er anslagsflaten som begrenser hulrommet ved dettes ene ende fortrinnsvis konisk skålformet, og legemets endeflate som er beregnet som anslag mot neynte anslagsflate, er på tilsvarende måte konveks. Advantageously, the contact surface which limits the cavity at one end thereof is preferably conical bowl-shaped, and the body's end surface, which is intended as a contact against the ninth contact surface, is correspondingly convex.

På tegningen er vist en utførelsesform av oppfinnelsen hvor: Fig. 1 viser en borlås ifølge oppfinnelsen gjennomskåret på langs og The drawing shows an embodiment of the invention where: Fig. 1 shows a drill lock according to the invention cut through lengthwise and

fig. 2 viser borlåsen gjennomskåret på fig. 2 shows the drill lock cut through

tvers etter linjen il—II i fig. l. across the line 11—II in fig. l.

På tegningen betegner 1 en sylinderformet hylse, i hvis ene innvendig skrue-gjengede ende er fastskrudd et mellomstykke 3 med et tappformet, utvendig skruegj enget parti 2, hvilket mellomstykke er forsynt med et skruegj enget hull, i hvilket er festet et endestykke 5 med en skruegj enget tapp 4, til hvilket stykke skal festes den for borets betjening bestemte arbeids-wire ved hjelp av hensiktsmessige, ikke viste anordninger. I det sylinderformede parti 1 er et stempelliknende parti i form av en hul sylinder 6 forskyvbar, i hvis innvendig skruegj engede ende, som vender mot mellomstykket 3, er løsbart innskrudd en hylse 9 forsynt med en sentral kanal 7 og et ikke rundt hode 8, og hylsens endeflate 10 er konkav med form av en avstum-pet kjegle. I en konisk utsparing 11 i mellomstykket 3 er den ene ende av en stålwire 13 sikkert festet ved hjelp av kjegle-formede klembakker 12, hvilken wire er ført gjennom kanalen 7 og er med sin annen ende sikkert festet til et i hulsylinderens 6 hulrom 14 forskyvbart, sylinderformet legeme 15 med en konisk endeflate 16 som svarer til hylsens 9 endeflate 10. In the drawing, 1 denotes a cylindrical sleeve, in one of whose internal screw-threaded ends is screwed an intermediate piece 3 with a pin-shaped, externally threaded part 2, which intermediate piece is provided with a screw-threaded hole, in which is fixed an end piece 5 with a screw-threaded pin 4, to which piece the working wire determined for operating the drill must be attached by means of suitable devices, not shown. In the cylindrical part 1, a piston-like part in the form of a hollow cylinder 6 is displaceable, in whose internally threaded end, which faces the intermediate piece 3, a sleeve 9 provided with a central channel 7 and a non-round head 8 is releasably screwed in, and the end surface 10 of the sleeve is concave in the shape of a blunt cone. In a conical recess 11 in the intermediate piece 3, one end of a steel wire 13 is securely fastened by means of cone-shaped clamping jaws 12, which wire is guided through the channel 7 and is securely fastened with its other end to a displaceable cavity 14 in the hollow cylinder 6 , cylindrical body 15 with a conical end surface 16 which corresponds to the end surface 10 of the sleeve 9.

Wiren 13 er omsluttet av en hylse eller et The wire 13 is enclosed by a sleeve or a

rør 17, som er forskyvbar i kanalen 7 og pipe 17, which is displaceable in the channel 7 and

som med sine ender ligger an mot legemet which with its ends rest against the body

15 resp. klembakkene 12. Til hulsylinderens 6 nedre, innvendig skruegj engede 15 or clamping jaws 12. To the lower, internal screw thread of the hollow cylinder 6

ende er fastskrudd et feste 18 for det ikke end, a fastener 18 is not screwed on

viste bor. shown live.

Ved den opp- og nedadgående bevegelse av den for borets betjening bestemte By the upward and downward movement of it determined for the operation of the drill

wire kommer hulsylinderen 6, borfestet 18 wire comes the hollow cylinder 6, drill attachment 18

og boret til under wirens 13 formidling å and drilled to under the wire's 13 conveyance to

bli tatt med i den oppadgående bevegelse get caught up in the upward movement

for så ved slakking av den for borets betjening bestemte wire å falle ned av sin for then, on slackening it for the operation of the drill, the wire decided to fall off its

egen tyngde, hvorfor boret utfører et ar-beidsslag. Skulle boret av en eller annen own weight, why the drill performs a working stroke. Should have been drilled by someone

grunn sette seg fast i borhullet og at man reason get stuck in the borehole and that man

derfor på kjent måte foretar gjentatte therefore, in a known manner, undertake repeated

rykkende bevegelser i den for borets betjening bestemte wire, kommmer det i hulrommet 14 forskyvbare legeme 15 til ved jerking movements in the wire intended for operating the drill, a displaceable body 15 is added to the cavity 14

oppoverrykkingene med sin koniske endeflate 16 å utføre gjentatte slag mot hylsens the upward movements with its conical end surface 16 to perform repeated blows against the sleeve

9 koniske endeflate 10 og derved bidra til 9 conical end surface 10 and thereby contribute to

å få boret løst. Den del som herved ut-settes for de største påkjenninger er wiren to get the drill fixed. The part that is exposed to the greatest stress is the wire

13, som derfor bør inspiseres av og til og 13, which should therefore be inspected from time to time and

som lett kan erstattes ved slitasje. which can be easily replaced when worn.

Sylinderen 1 og hulsylinderen 6 er forsynt med slamhull 20 resp. 21. The cylinder 1 and the hollow cylinder 6 are provided with mud holes 20 and 21.

Oppfinnelsen er ikke begrenset til den The invention is not limited thereto

ovenfor beskrevne og på tegningen viste described above and shown in the drawing

utførelsesform, men kan forandres i sine embodiment, but can be changed in its

detaljer uten at man går fra oppfinnelsens details without deviating from the invention

grunntanke. basic idea.

Claims

1. Device for drill locks for deep-well drilling where the drill lock consists of two i

the drilling direction in relation to each other to a certain extent movable parts, of which the one is connected to the wire determined for the operation of the drill, while the other forms a fixture for the drill, where the upper of said locking parts is provided with a cylinder-shaped part, in which a piston-like part of the lower part is displaceable, and where to a relatively short steel wire is attached to one end of the first-mentioned locking part, which runs through a central channel in the piston-like part of the lower locking part and with its other end is attached to a body which is axially displaceable in a central, longitudinal cavity in the latter part, so that the movement of the locking parts in the direction of each other is limited by said body's abutment against a surface of the piston-like part, which surface limits the upper end of the cavity, characterized in that the central channel (7) is designed in a sleeve (9) which is screwed in at one end of the piston-like part (6) which protrudes into the cylinder-shaped part (1), the lower end surface (10) of the sleeve (9) forms a contact surface for the displacement in the cavity (14) bare body (15).

2. Device according to claim 1, characterized in that the piston-like part consists of a hollow cylinder (6), into the upper end of which is screwed the sleeve (9) provided with the stop surface (10) and into the lower end of which is screwed an organ (18) intended to hold the drill firmly, so that the interior of the hollow cylinder (6) forms the cavity (14), in which the body (15) which is connected to the wire (13) is displaceable.

3. Device according to claim 1, characterized in that the abutment surface (10) which limits the cavity (14) at its upper end is preferably conical bowl-shaped and. that the end surface (16) of the body (15), which is calculated as abutment against said abutment surface (10), is similarly convex.