CN2059179U - Multiple rock core direction-finder - Google Patents

Abstract

The utility model relates to a multiple-point rock core direction finder which is used for positioning a rock core. The utility model comprises a rock core column surface incising blade and a direction finder. A directional light sensing device and a rotary bracket are installed in the direction finder, and the rotary bracket has imbalance weight. A directional exposure device is installed on the direction finder and can follow the direction finder to rotate. In one directional run drilling process, the directional coring of multiple points and continuous directional coring of full holes can be realized. The utility model is suitable for the directional coring of the inclined holes of different angles and the different stratums. When the utility model is used, the directional position and directional frequency are not limited by time and footage, the directional time of each time is short, and the directional coring is exact; the utility model has the advantages of reasonable design, compact structure, convenient operation and low cost.

Description

Multiple rock core direction-finder

The utility model relates to a kind of core orientation device, particularly multiple spot core orientation instrument.

For some important construction project, especially mining and engineering construction, before construction, need estimate the subterranean body or the structural plane stability in the area of constructing, thereby determine the feasibility of engineering design and the constructure scheme of taking, this at first will understand the occurrence (inclination angle of rock stratum and orientation) of subterranean strata or structural plane, at first to take directed core from underground by the probing means, promptly when the underground drilling coring, by remove the boring special-purpose directed instrument at the end with drilling tool one, lay the luv space azimuth mark for the column core of not being completely cured, revert to underground luv space state after core extracted ground, and, draw the occurrence of rock stratum, for design and construction provide reliable basis by measuring and calculating.The core orientation technical research work carried out of some R﹠D institution has in recent years obtained some progress.Identify by YD-NQ type single-point core orientation device ministerial level in 1984 as metallurgical operate portions prospecting Institute Of Science And Technology, its structure mainly comprises core capital face simulating shape device and core end face direction caliberating device, its end face simulating shape device mainly is made up of one group of draw point, behind the draw point needle point tactite stem stem end face, its locus is fixed, thereby has simulated core capital face shape; And core end face direction caliberating device is made up of a circular aluminium sheet and a steel ball.At timing signal, because the drilling tool drilling direction has certain angle, the steel ball on aluminium sheet rolls to minimum point, makes steel ball stay impression on aluminium sheet by pressure, and core end face direction is decided.During using, this instrument is subjected to the restriction of certain condition, can not orientation get core for following situation: when the residual core that breaks away from rock mass is arranged at the bottom of the hole, the core end face when oblique angle, core post upper end is very little, all can't be got core by continuously-directional when core is broken more at ordinary times.And China Nonferrous Metals Industry Corporation mineral product geology Research Institute success YCD-III type in 1986 and 3 core orientation instrument of NCO-I type, form by scoring knife and three groups of core end face direction caliberating devices, three groups of core end face aspect caliberating devices all are that a circular aluminium sheet and a steel ball constitute, at three times when directed, three steel ball priorities impression under three aluminium sheet subscripts, scoring knife is inscribed vestige in the whole drilling process on the core cylinder, though these two kinds of direction finders have overcome some shortcoming of YD-NQ type single-point core orientation device, but apparatus structure more complicated, each directed need going into the well simultaneously by three instruments, every instrument can only bother in directed once-through operation, orientation is subjected to the restriction of time and drilling depth, drill string vibration is bigger in probing, accuracy and reliability that influence is directed.

The purpose of this utility model provides and a kind ofly can be applicable to that Different Strata orientation such as complete, broken gets core, directed round trip creeps into and can carry out multipoint directional and full hole continuously-directional is got core, accuracy height, high efficiency is saved time and lower-cost multipoint directional instrument.

The utility model is achieved in that in the prior art scheme, interior pipe bit tool lower end is fixedly connected with scoring knife, its the upper end with urceolus by being threaded, rely on positioning key that two parts are circumferentially located, direction finder is housed in urceolus, between the instrument tube of direction finder and urceolus positioning key is housed fixedly, to guarantee the circumferential location between two parts, its technical essential is: the instrument tube is connected with respectively at two ends up and down, lower cover, be fixedly connected with upper bracket in the tube, on having, the runing rest that dividing plate is installed down is connected with upper bracket and lower cover by two bearings, can freely turn round.The installation dividing plate of going up of runing rest is fixedly connected with watch and clock movement, and the upper end of driving rack is fixedly connected with exposure box, the travelling gear engagement of its underpart and watch and clock movement, the running of watch and clock movement, drive travelling gear running makes on the travelling gear and moves, fix on it exposure box also with on move; The exposure small garden hole is arranged on the sidewall of exposure box; Last installation dividing plate also is fixedly connected with delay switch timing circuit plate, and its only conducting work when static is at the lifting drilling tool or when creeping into, because under the vibration effect, the discharge of the oscillator of circuit can not form the loop and quits work; Under dividing plate be installed be fixedly connected with weighting block and dry cell; Delay switch timing circuit plate, exposure box and dry cell constitute a circuit loop.Upper end in the instrument tube, the position relative with exposure box is assembled with the aluminium cover; The aluminium cover is circumferentially located by directional bond with the instrument tube, and the inwall of aluminium cover posts sensitive paper.

Exposure box is made up of box body, lid and bulb, lid is screwedly mounted on the box body, the bulb that exposure is installed in the box body is connected with dry cell with delay switch timing circuit plate by lead, on box side wall, have the small garden hole of exposure, the circumferential position of small garden hole is consistent with the weighting block position of centre of gravity on the runing rest, could guarantee that like this exposure small garden hole on the exposure box remains the position of hole wall minimum point under the effect of weighting block, thereby also be the hole wall lowest point by the sensitivity speck of the light beam that penetrates in the small garden hole on sensitive paper.The inwall and the sensitive paper of aluminium cover all have the angle index sign, and in use, the zero degree position of sensitive paper overlaps with the zero degree position of aluminium cover.

When instrument is assembled, make aluminium cover, instrument tube, the urceolus of pasting sensitive paper, and the interior pipe bit tool that is fixedly connected with scoring knife does circumferentially location by the positioning key mutually, with the zero degree position that guarantees sensitive paper and scoring knife on same reference line.

The course of work of the present utility model and principle: the watch and clock movement clockwork spring with direction finder is first-class at first on the ground, and at the dark place sensitive paper is attached on the inwall of aluminium cover, build loam cake, loam cake, upper bracket and instrument barrel have constituted a little darkroom at this moment, be positioned at requirement on the same reference line by above-mentioned zero degree position and scoring knife with sensitive paper, instrument is fixedlyed connected with interior pipe bit tool, then with the outer tube drilling tool that is fixedly connected with drill bit together at the bottom of the boring hole that the inclination angle is arranged.When directional drilling, core enters interior pipe bit tool, inscribes groove mark at the scoring knife of interior pipe bit tool front end on the core cylinder.When needing orientation, rig stops boring, record creeps into yardstick and orientation time, this moment, the delay switch circuit of direction finder charged (1～2 minute), circuit turn-on work, and the miniature bulb in the exposure box is bright, from exposure small garden hole outgoing beam, sensitization goes out sensitivity speck on sensitive paper, sensitization finishes when continuing to creep into, and the vibration effect of drilling tool makes the discharge of delay switch circuit oscillator, and the exposure miniature bulb goes out.Meanwhile, because the effect of clockwork feed is rotated further travelling gear, drive in the driving rack continuation and move, the exposure box that is fixed on tooth bar upper end also with on move, but move past multiple bearing exposure in the journey last, can on sensitive paper, obtain a plurality of directed sensitivity specks from the bottom to top.Because drilling tool tilts to pierce vertical effect with weighting block, the small garden hole that makes exposure box is all the time towards the minimum direction of hole wall, so a series of sensitivity specks (being orientation point) that write down on the sensitive paper in the instrument tube also are the minimum directions towards hole wall.They are corresponding with the minimum point in each directed cross section of core.Because reference line (zero degree line) on the sensitive paper and scoring knife are on same straight line, therefore reference line is consistent with line of weakness on the core cylinder, each sensitivity speck promptly arrives the angle number of direct line position with respect to the angle number of reference line on the sensitive paper corresponding to the line of weakness position in each cross section on the core cylinder.Therefore, after core extracted ground, line of weakness (being reference line) according to core, the yardstick that creeps into when directed and the time interocclusal record, through converting, each cross section of each sensitivity speck and core orientation on the sensitive paper is mapped, and according to the angle value of each point record on the sensitive paper, make reference line with line of weakness on the core cylinder, measure relative angle value on each cross section, the line of the series of points of being determined by a series of angle values is exactly the minimum point bus of core post, measure the chance layer angle of core then respectively by measuring apparatus, the occurrence of rock stratum according to these four parameters, is determined in the inclination angle of angle of torsion and boring and azimuth.

Distinguishing feature of the present utility model is: in a directed round trip creeps into, can carry out multipoint directional and get core with full hole continuously-directional, and get core applicable to the inclined hole and the Different Strata orientation of different angles, the restriction that directed position and number of times are not subjected to time and drilling depth, each orientation time is short, it is accurate that orientation is got core, reasonable in design, compact conformation, easy to operate, cost is low.

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1 is the utility model direction finder schematic diagram;

Fig. 2 is the schematic diagram of direction finder and scoring knife connection relation;

Fig. 3 is the schematic diagram of driving rack;

Fig. 4, Fig. 5 are the schematic diagrames of runing rest;

Fig. 6 is the sensitive paper schematic diagram;

Fig. 7 is delay switch timing circuit figure;

Referring to Fig. 1～7, the two ends up and down of runing rest 8 connect with upper bracket 4, lower cover 13 respectively by miniature bearing 17,14.The bottom of runing rest 8 has one dividing plate is installed, and its both sides are fixed with plumbous system weighting block 9 and dry cell 11 respectively.Runing rest 8 tops have two dividing plate is installed, between two installation dividing plates, ordinary clock and watch movement 6 is arranged with bolt, there is knob 10 its outside, winder one end at ordinary clock and watch movement 6 is equipped with travelling gear 15, the lower gear rack of driving rack 5 and travelling gear 15 mesh together, its top is hollow shaft-like, this end passes axle journal circular hole on the runing rest 8, connect by bolt with the exposure box body 3 that has exposure small garden hole 12, lid 2 is screwedly mounted on the box body 3 by screw thread, bulb 18 is housed in the box, connecting lead passes from the hollow stem on driving rack 5 tops, pass with delay switch timing circuit plate 16 from the lower end of hollow stem and to connect, install on the dividing plate at one delay switch timing circuit plate 16 is housed, referring to Fig. 7, by capacitor C, resistance R 1, R2, R3, integrated component IC, 1 triode GB, oscillator ZK and K switch are formed, and and dry cell 11, bulb 18 is formed the loop.The instrument instrument tube 7 of packing into from the below, by the external screw thread of lower cover 13 and the female connection of instrument tube 7, jackscrew 20 is screwedly mounted on the lower cover 13, so that with runing rest 7 jack-up, aluminium overlaps 19 outsides directed keyway, inboard is the reference line scale with the keyway, the sensitive paper 21 that has scale is attached to aluminium and overlaps 19 inwalls, and the alignment fiducials scale, with aluminium cover 19 upper end of instrument tube 7 of packing into, and tighten loam cake 1.With the direction finder that the assembles urceolus 22 of packing into, (referring to Fig. 2) and with positioning key 23 orientations, urceolus 22 and the interior pipe bit tool 24 that scoring knife 25 is housed are by spiral marking connection, with positioning key 23 orientations.When instrument is assembled, rely on positioning key 23, make sensitive paper 21, instrument tube 7, interior pipe bit tool 24 and scoring knife 25 orientations, with the zero degree position that guarantees sensitive paper 21 and scoring knife 25 point-blank (reference line).

Carry out core orientation with this instrument, at first the clock and watch knob 10 with position indicator is rotated counterclockwise a week (clockwork spring is direction energetically), make exposure box 3 be in upper/lower positions, with power switch K closure, direction finder is packed in the instrument tube 7, then in order together the interior pipe bit tool assembling of urceolus 22 and band scoring knife 25.In the process of creeping into and putting drilling tool, because mechanical oscillation, the oscillator ZK of delay switch timing circuit and contact are intermittently closed, the capacitor C discharge, at this moment, 2 of integrated component IC, 6 pin current potential step-downs, pin 3 recovers high potential, and triode GB turn-offs, and sensitization bulb 18 does not work, when directed, stop to creep into, oscillator ZK and contact are in released state, and at this moment power supply charges to capacitor C through resistance R 1, about 100 seconds, make 2 of integrated component IC, when 6 pin current potentials were elevated to the Country value of 3 pin upset, 3 pin became electronegative potential by high potential, triode GB conducting, bulb 18 is shinny, by the exposure small garden hole 12 of exposure box 3, sensitization on sensitive paper 21, about 1～2 minute, when continuing to creep into after sensitization finishes, bulb 18 goes out.Meanwhile, because the effect of clockwork feed, travelling gear 15 is rotated further, drive in driving rack 5 continuation and move, cause exposure box to move up from extreme lower position, widely different the circling of clockwork feed axle is 120 minutes, and moving distance on the exposure box is 30 millimeters, move past in the journey last, but the multiple bearing exposure.Can on sensitive paper 21, obtain a plurality of directed sensitivity specks from the bottom to top.Referring to Fig. 6.When orientation, because drilling tool tilts to pierce vertical effect with weighting block 9, the direction of small garden hole that makes exposure box body 3 is all the time towards the boring minimum point.Thereby, be loaded on aluminium and overlap tubular sensitive paper 21 on 19 inwalls, being exposed light beam sensitization that small garden hole 12 penetrates, to go out a plurality of sensitivity specks also be minimum point towards drill hole wall; Zero degree line position on the sensitive paper 21, it promptly is a reference line, the scoring knife 25 of it and interior pipe bit tool 24 front ends is on a reference line, in directional drilling, interior pipe bit tool 24 does not generally rotate, this situation, the scoring knife on the core cylinder is the straight line that is parallel to the core axis, the line of each sensitivity speck should be the bar plumb line on sensitive paper; But in creeping into, former thereby the rotation because of certain sometimes of interior pipe bit tool 24, like this, the indentation of scoring knife 25 on the core cylinder may be helix or irregular curve, and with scoring knife 25 also can be in the zero degree position of the sensitive paper of a reference line with the displacement of scoring knife generation synchro angle, thereby a plurality of sensitivity specks that on the sensitive paper 21 of exposing light beam at tubular of hole wall extreme lower position, stay all the time, its line also can be helix (sensitive paper is the bar straight line after launching) or irregular curve.It is angle of torsion to the angle of zero degree line (reference line) that each sensitivity speck (orientation point) is arranged on the sensitive paper 21, therefore, on the core cylinder, can determine direct line (the minimum bus of core) according to the angle of each sensitivity speck and zero degree line, after the core orientation line is decided, measure inclination angle, the azimuth that chance layer angle, angle of torsion and the drilling tool of core creep into by instrument, thereby determine the occurrence of subterranean strata.

Claims (7)

1, a kind of multiple spot core orientation instrument has interior pipe bit tool, and its lower end is fixedly connected with scoring knife, its upper end and urceolus be by being threaded, and be assembled with the positioning key of circumferential location, and direction finder is housed in urceolus, between the instrument tube of direction finder and urceolus positioning key is housed fixedly, it is characterized in that:

Be fixedly connected with upper bracket and lower cover in a, the instrument tube, the runing rest with upper and lower installation dividing plate is by two bearings and upper bracket and lower cover flexible connection;

The installation dividing plate of going up of b, runing rest is fixedly connected with watch and clock movement, the upper end of driving rack is fixedly connected with exposure box, the travelling gear engagement of its special portion and watch and clock movement, be fixedly connected with delay switch timing circuit plate on the last installation dividing plate, following installation dividing plate is fixedly connected with weighting block and dry cell.

C, in the instrument tube, the position relative with exposure box, be assembled with the instrument tube circumferentially the location and in post the aluminium cover of sensitive paper.

2, multiple spot core orientation instrument according to claim 1 is characterized in that: the inwall of aluminium cover indicates scale.

3, multiple spot core orientation instrument according to claim 1 is characterized in that: delay switch timing circuit plate is by capacitor C, resistance R 1, R2, R3, and integrated component IC, triode GB, oscillator ZK and K switch are formed.

4, multiple spot core orientation instrument according to claim 1, it is characterized in that: driving rack top is hollow shaft-like.

5, multiple spot core orientation instrument according to claim 1 is characterized in that: be fixedly connected on the lower cover on the instrument tube, the jackscrew that can adjust the runing rest height and position is housed.

6, multiple spot core orientation instrument according to claim 1 is characterized in that: weighting block is that metallic lead is made.

7, multiple spot core orientation instrument according to claim 1 is characterized in that: exposure box is made up of box body, lid and the bulb of band small garden hole.

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