CN109779552A - Core drilling rig automatic start-stop mechanism - Google Patents

Abstract

The present invention discloses a kind of core drilling rig automatic start-stop mechanism; including center-pole, fluid passage starting module, outer cylinder, outer cylinder unlocked state and choked flow module; center-pole passes through fluid passage starting module, outer cylinder unlocked state and choked flow module internal cavity; fluid passage starting module is connected in outer cylinder unlocked state, outer cylinder rear, fluid passage starting module with outer cylinder unlocked state.Core drilling rig automatic start-stop provided by the invention mechanism, can automatic switching on hydraulic channel, contact the constraint of workpiece, and hydraulic channel can be truncated after workpiece reaches designated position, stop pressure supply, stop boring, and can pressure release.

Description

Core drilling rig automatic start-stop mechanism

Technical field

The present invention relates to drilling extracting core system more particularly to a kind of core drilling rig automatic start-stop mechanisms.

Background technique

During oil field prospecting, core is discovery oil-gas Layer and research stratum, source bed, oil reservoirs, cap rock, construction etc. Capsule information lithology, physical property and oil-containing, the gas and water of subterranean strata can directly be understood by the observational study to core Attitude Characteristics.After the investment exploitation of oil field, oil reservoir deposition characteristics, the physical property of reservoir, hole are further studied and recognized by core Gap structure, wetability, relative permeability, lithofacies characteristics, reservoir physics simulation and reservoir water flooding rule；Understanding and grasp difference are opened It hair stage, different water cut stages reservoir water flooding feature, gets remaining oil distribution clear, is designed for oilfield development program, series of strata, well pattern tune Whole and Encryption Well provides scientific basis.

Coring is that subsurface rock is got on ground blockingly using special coring tool in drilling process, this The blocking rock of kind is called core, and the various properties of rock can be measured by it, and intuitively Study of The Underground construction and rock are heavy Product environment, understands fluid properties therein etc..In mineral exploration and development process, need by geological design stratigraphic horizon and Depth carries out drilling work, the tripping in coring tool into well, the rock sample drilled through out.

Downhole temperature is high, and electrical equipment is not available, and liquid need to be blocked before hydraulic device starting by being often used hydraulic device Runner after starting, need to release the axial constraint to workpiece, workpiece is made to move forward, and keep flow channel for liquids unimpeded, to work Component provides hydraulic, driving hydraulic motor, cold to remove drill bit of drilling machine, after workpiece moves forward to certain position, needs to stop Only to workpiece pressure supply, workpiece is made to stop working, and pressure release.

Summary of the invention

The present invention is intended to provide a kind of core drilling rig automatic start-stop mechanism, can automatic switching on hydraulic channel, contact work department The constraint of part, and hydraulic channel can be truncated after workpiece reaches designated position, stop pressure supply, stops boring, and can pressure release.

In order to achieve the above objectives, The technical solution adopted by the invention is as follows:

Core drilling rig automatic start-stop disclosed by the invention mechanism, including center-pole, fluid passage starting module, outer cylinder, outer cylinder solution Lock module and choked flow module, center-pole pass through fluid passage starting module, outer cylinder unlocked state and choked flow module internal cavity, and fluid passage starts mould Block is connected in outer cylinder unlocked state, outer cylinder rear, fluid passage starting module with outer cylinder unlocked state.

Further, the fluid passage starting module includes that lock body, locking level, starting are cut off, and locking level is in lock body, locking Bar and lock body pass through starting and cut off connection, and for the center-pole in locking level, lock body includes seal section A, and locking level includes sealing Section B, the seal section A and seal section B sealing cooperation, the seal section B and center-pole sealing cooperate, center-pole and locking level it Between have a fluid passage A, locking level is provided with tap hole A, and tap hole A is connected to fluid passage A, and tap hole A is in the rear seal section B, lock body and locking There is fluid passage B between bar, fluid passage B is in front of seal section A, and before starting cuts off cutting, tap hole A is exported at seal section A, before fluid passage A End sealing, after starting cuts off cutting, locking level Forward, the outlet tap hole A is located in front of seal section A, and fluid passage A passes through with fluid passage B Tap hole A connection.

Further, the outer cylinder unlocked state includes connecting tube and lock pin, and connecting tube rear end is connect with lock body, after lock pin End is connect with locking level, and center-pole passes through lock pin inner cavity, and for lock pin in connecting tube, connecting tube leading portion outer diameter is less than outer cylinder internal diameter, Connecting tube leading portion side wall has Xie Suokong, and the fluted A of lock pin outer wall, the fluted B of outer tube inner wall, further includes pin, pin It follows closely length and is greater than unlock hole depth, for pin in solution lockhole, pin outer end chamfered and/or the side groove B are inclined-plane, The width of groove A is not less than pin inner end width, and the width of groove B is not less than pin outer end width, before starting cuts off cutting, even Front end is taken in outer cylinder, in front of groove A, pin inner face is slidably matched pin with lock pin outer wall, and the insertion of pin outer end is recessed In slot B, after starting cuts off cutting, locking level band pendulum lock pin moves forward, and solution lockhole and groove A face, pin inner end are embedded in groove A Interior, the distance of pin inner face to outer tube inner wall is greater than length of pin.

Further, the choked flow module includes valve housing, lock shell and trigger mechanism, and center-pole passes through valve housing Inner cavity, for valve housing in lock shell, valve housing includes seal section C and diversion section from back to front, and lock shell wraps from back to front Inflow segment B and outflow section B are included, there is fluid passage D between center-pole and inflow segment B, the rear end fluid passage D is connected to fluid passage B, in the inflow segment B Diameter is greater than seal section C outer diameter, and seal section C outer diameter is greater than diversion section outer diameter, and the outflow section B internal diameter is equal to seal section C outer diameter, stream Section B is provided with tap hole B out, and tap hole B is connected to workpiece, and before stopping brill, the front end seal section C is in inflow segment B, fluid passage D and outflow Hole B connection, after stopping brill, seal section C and outflow section B sealing cooperate, and fluid passage D and tap hole B separate.

Further, the valve housing further includes locking section A, and locking section A is connect with diversion section front end, the lock shell It further include locking section B, locking section B is connected with the outflow front end section B, and the outer tube inner wall is connected with emergency gear, the trigger mechanism Including lock sleeve, fixed ring, emergency gear, locking section A and locking section B, locks shell and pass through lock sleeve inner cavity, the locking section A Outer wall is provided with locking slot A, there is locking hole on locking section B, and locking hole is through-hole, there is lock ball in locking hole, and locking bulb diameter is big In locking hole depth, lock sleeve includes impact section and locking section C from back to front, and locking section C inner wall has locking slot B, the locking The distance of slot A slot bottom to locking section B inner wall is less than locking bulb diameter, and the distance of the locking slot A slot bottom to locking section B outer wall is not Less than locking bulb diameter, the distance of the locking slot B slot bottom to locking section B outer wall is less than locking bulb diameter, the locking slot B slot The distance of bottom to locking section B inner wall is fixed on locking section B outer wall not less than bulb diameter, the fixed ring is locked, and fixed ring is being locked Tieholen rear, impact section internal diameter are greater than fixed ring outer diameter, and for locking section C in front of fixed ring, the outer cylinder internal diameter is greater than lock shell With the outer diameter of lock sleeve, emergency gear includes card-tight part and press section from back to front, and press section front end face internal diameter is less than impact section Outer diameter, press section internal diameter are not less than fixed ring outer diameter, and card-tight part front end face internal diameter is less than fixed ring rear end face outer diameter, before center-pole End is connected with spacing head, and spacing head is in locking section B, and spacing head is in front of locking section A, between spacing head outer wall and lock outer casing inner wall Gap is less than locking section A nose thickness, and the axial distance of card-tight part front end face to press section front end face, which is equal to, stops boring preceding locking hole hole The heart to the axial distance at the center locking slot B, before stopping boring, the distance of the rear end seal section C to the rear end tap hole B is greater than stop brill after lock Kong Kongxin stops the locking hole hole heart after boring to the axial distance at the center locking slot A greater than stopping boring to the axial distance at the center locking slot A Distance of the front end preceding seal section C to the front end tap hole B.

Further, there is fluid passage C between the center-pole and lock pin and locking level, locking level side wall is provided with inflow hole, liquid Road B is connected to fluid passage C by inflow hole, and fluid passage C is connected to fluid passage D, and connecting tube includes pressure release section and choked flow section, lock from back to front Pin cooperates with choked flow section sealing, and choked flow section internal diameter is less than pressure release section internal diameter, and pressure release section is provided with relief hole, and relief hole is through-hole, liquid There is shearing plunger in road B, shearing plunger internal diameter is greater than lock pin and locking level outer diameter, and shearing plunger connects by terminating to cut off with lock body It connects, shearing plunger includes cut section and recoil section from back to front, and cut section outer wall and the sealing of lock body inner wall cooperate, and recoil section outer diameter Equal to pressure release section relief hole forward portion internal diameter, before stopping brill, section front end is recoiled in front of relief hole front end, recoil section and pressure release section The sealing cooperation of relief hole forward portion, after stopping brill, front liquid reflux impact shear plunger front end, shearing plunger is moved back, and is recoiled Duan Qianduan is connected in relief hole front end rear, fluid passage B with relief hole.

Further, the locking level outer wall and lock body inner wall have mutually matched limited step.

It further, further include locking nut, locking nut perforation, center-pole before and after lock body rear, locking nut are worn Locking nut inner cavity is crossed, locking nut front end is threadedly coupled with lock body rear end, and starting is cut off at the screw thread of lock body rear end.

Further, the locking nut includes fixed section and thread segment, and locking level step rear outer diameter is less than fixed section Internal diameter, fixed section internal diameter are less than outer diameter at locking level step, connect in thread segment with lock body rear end.

Further, the locking nut is axially provided with locking hole A, and the locking hole A is through-hole, and lock body rear end face has lock Tieholen B, locking hole B are blind hole, locking hole A and locking hole B pairing, further include fixing screws, and fixing screws length is greater than locking Hole A depth, in locking hole A, fixing screws front end passes through in locking hole A insertion locking hole B fixing screws.

The invention has the following advantages:

1, before starting, starting, which is cut off, is fixed on locking level on lock body, and tap hole A is opened in seal section A, tap hole A outer wall Mouth is shut, and fluid passage partition, connecting tube is connect with lock body, and pin outer end is embedded in groove B, and outer cylinder is locked in connecting tube, Hydraulic when the offer of rear slush pump reaches initiation value, thrusts starting and cuts off, and locking level Forward, liquid passes through outflow through fluid passage A Hole A enters fluid passage B, then flows into fluid passage C through inflow hole, flows through fluid passage D, and fluid passage D is connected by tap hole B and front hydraulic motor It is logical, start hydraulic motor, locking level Forward band pendulum lock pin moves forward, make groove A and solution lockhole face, outer cylinder self gravity forward, Groove B and pin outer end contact surface are inclined-plane, and pin is squeezed into groove A, release the constraint to outer cylinder, and outer cylinder front end connects liquid The workpieces such as pressure motor rotor and drill bit, make drill bit travel forward；

2, before stopping brill, lock ball locks valve housing in locking hole and locking slot A, and fluid passage D is kept to pass through tap hole B is connected to front hydraulic motor, and when outer cylinder moves forward to stop position, outer cylinder drives emergency gear to hit lock sleeve, makes to lock Fixed Forward, locking slot B and locking hole face release lock ball radial constraint, hydraulic shock valve housing rear end, lock ball quilt It is squeezed into locking slot B, valve housing Forward, seal section C separates fluid passage D and tap hole B, stops motor forwards and supplies Can, motor stalling since fluid passage D is blocked, gushes after liquid, flows back to fluid passage B, recoil shearing plunger front end, shearing plunger by Power afterwards, shearing plunger move back, and recoil section front end moves on to relief hole rear, and fluid passage B is connected to by relief hole with external, liquid from Relief hole discharge；

3, locking nut is set, and locking nut is threadedly coupled with lock body, and linkage section is threadedly coupled with outflow section A, convenient for peace Dress, replacement starting are cut off；

4, locking hole A, locking hole B and fixing screws cooperation, limitation circumferentially rotate.

Detailed description of the invention

Fig. 1 is schematic diagram before fluid passage starting module starts；

Fig. 2 is schematic diagram after the starting of fluid passage starting module；

Fig. 3 is schematic diagram before outer cylinder unlocked state starts；

Fig. 4 is that outer cylinder unlocked state stops schematic diagram after boring；

Fig. 5 is that choked flow module stops boring preceding schematic diagram；

Fig. 6 is that choked flow module stops schematic diagram after boring；

In figure: 11- lock body, 111- lock segments, 112- seal section A, 113- fluid passage section, 12- locking level, 121- linkage section, 122- flows out section A, 1221- tap hole A, 123- seal section B, 124- inflow segment A, 1241- inflow hole, 13- starting is cut off, 14- Center-pole, 15- locking nut, 151- fixed section, 152- thread segment, 16- fixing screws, 21- connecting tube, 211- linkage section, 212- pressure release section, 2121- relief hole, 213- choked flow section, 22- lock pin, 221- groove A, 23- outer cylinder, 231- groove B, 232- peace All gear, 2321- card-tight part, 2322- press section, 24- pin, 25- terminate to cut off, 26- shearing plunger, 261- cut section, 262- recoils, and section, 31- valve housing, 311- seal section C, 312- diversion section, 313- locking section A, 32- lock shell, 321- is flowed into Section B, 322- flow out section B, 3221- tap hole B, 323- locking section B, 33- lock sleeve, 331- impact section, 332- locking section C, 34- Lock ball, 35- fixed ring, 36- spacing head, 37- snap ring, 41- fluid passage A, 42- fluid passage B, 43- fluid passage C, 44- fluid passage D.

Specific embodiment

In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing, to the present invention into Row is further described.

Core drilling rig automatic start-stop disclosed by the invention mechanism, including center-pole 14, fluid passage starting module, outer cylinder, outer cylinder Unlocked state and choked flow module, center-pole pass through fluid passage starting module, outer cylinder unlocked state and choked flow module internal cavity, fluid passage starting Module is connected in outer cylinder unlocked state, outer cylinder rear, fluid passage starting module with outer cylinder unlocked state；

As shown in Figure 1 and Figure 2, fluid passage starting module include lock body 11, locking level 12, starting cut off 13, center-pole 14, lock It is penetrated through before and after body 11, lock body 11 is followed successively by lock segments 111, seal section A112 and fluid passage section 113,111 side of lock segments from rear to preceding Wall has starting to cut off hole, and it is through-hole that starting, which cuts off hole, and starting cuts off 13 length and cuts off hole depth, 12 front and back of locking level greater than starting Perforation, for locking level 12 in lock body 11, locking level 12 is followed successively by linkage section 121, outflow section A122, seal section B123 from rear to preceding With inflow segment A124, linkage section 121 is threadedly coupled with outflow section A122, seal section B123 and inflow segment A124 welding, linkage section 121 outer walls have starting to cut off slot, and it is annular groove that starting, which cuts off slot, and starting cuts off 13 and cuts off hole in starting and starting is cut off in slot, Outflow section A122 side wall is provided with tap hole A1221, and inflow segment A124 side wall is provided with inflow hole 1241, and tap hole A1221 is by introversion It turns forward outside, tap hole A1221 has multiple, and multiple tap hole A1221 are circumferentially uniformly distributed in same axial position, flows into Hole 1241 has multiple, and inflow hole 1241 is distributed before and after not ipsilateral, and 111 internal diameter of lock segments is greater than seal section A112 internal diameter, even Connecing 121 outer wall of section has step, and outer diameter of step is greater than seal section A112 internal diameter, and outer diameter is equal to seal section in front of 121 step of linkage section A112 internal diameter, starting cut off slot in step outer wall, and in locking level 12, seal section A112 and seal section B123 are sealed center-pole 14 Cooperation, 113 internal diameter of fluid passage section are greater than 12 outer diameter of locking level, and linkage section 121, the internal diameter for flowing out section A122 and inflow segment A124 are greater than 14 outer diameter of center-pole, seal section B123 and center-pole 14 sealing cooperate, the front end seal section A112 to 11 rear end of lock body axial direction away from From be less than the front end seal section B123 arrive 11 rear end of lock body axial distance, starting cut off 13 pass through starting cut off hole insertion start cut The axial distance of cotter way, tap hole A1221 opening of external wall to 11 rear end of lock body is less than 113 rear end of fluid passage section to 11 rear end of lock body Axial distance further includes locking nut 15, and locking nut 15 penetrates through before and after 11 rear of lock body, locking nut 15, center-pole 14 Across 15 inner cavity of locking nut, 15 front end of locking nut is threadedly coupled with 11 rear end of lock body, and starting is cut off after hole is opened in lock body 11 It holds at screw thread, the radial distance that 15 inner wall of locking nut to starting cuts off slot bottom cuts off length, locking nut 15 not less than starting Including fixed section 151 and thread segment 152,121 step rear outer diameter of linkage section is less than outside 151 internal diameter of fixed section is less than at step Diameter, 152 internal diameter of thread segment are equal to 111 outer diameter of lock segments, and locking nut 15 is axial to be provided with locking hole A, and locking hole A is through-hole, lock It is blind hole, locking hole A and locking hole B pairing that 11 rear end face of body, which has locking hole B, locking hole B, further includes fixing screws 16, fixed 16 length of screw is greater than locking hole A depth, and in locking hole A, 16 front end of fixing screws is embedded in fixing screws 16 across locking hole A In locking hole B, after starting, locking level 12 moves forward, and starting cuts off 13 cuttings, and starting cuts off head and cuts off in hole in starting, and starting is cut Pin tail is cut off in slot in starting, and it includes major part and microcephaly that starting, which cuts off head, and outwardly, large head external diameter is greater than small head external diameter to major part, is opened The dynamic hole that cuts off includes outer segment and inner segment, and outer segment aperture cuts off a large head external diameter not less than starting, and inner segment aperture is cut not less than starting Plunger small head external diameter, inner segment aperture are less than large head external diameter, and outer segment depth is not less than major part length, and microcephaly and starting cut off tail length degree And be greater than inner segment depth；

As shown in Figure 3, Figure 4, outer cylinder unlocked state includes connecting tube 21 and lock pin 22,21 rear end of connecting tube and 11 spiral shell of lock body Line connection, 22 rear end of lock pin are threadedly coupled with locking level 12, and center-pole 14 passes through 22 inner cavity of lock pin, and 14 outer diameter of center-pole is less than lock 22 internal diameter of pin, center-pole 14, connecting tube 21, outer cylinder 23 and lock pin 22 are coaxial, and lock pin 22 is in connecting tube 21,21 leading portion of connecting tube Outer diameter is less than 23 internal diameter of outer cylinder, and it is multiple that 21 leading portion side wall of connecting tube has Xie Suokong, Xie Suokong to have, and multiple solution lockholes are in same axial direction Position is circumferentially uniformly distributed, the fluted A221 of 22 outer wall of lock pin, 23 inner wall of outer cylinder fluted B231, groove A221 and groove B231 is annular groove, further includes pin 24, and 24 length of pin is greater than unlock hole depth, and pin 24 is in solution lockhole, pin 24 Outer end chamfered, the side groove B231 be inclined-plane, the outer end chamfer of pin 24 and radial section angle and the side groove B231 and The angle of radial section is mutually remaining, and the width of groove A221 is not less than 24 inner end width of pin, and the width of groove B231 is not less than pin 24 outer end widths are followed closely, pin 24 includes ailhead and nail body, and for ailhead in inside, Xie Suokong is divided into ailhead section and nail figure, ailhead section Inside, ailhead section internal diameter is not less than ailhead outer diameter, and nail figure internal diameter is less than ailhead Duan Shen not less than nail body outer diameter, ailhead length Degree, nail body length is greater than nail figure depth, and after starting, 24 inner end of pin is embedded in groove A221,24 inner face of pin to outer cylinder The distance of 23 inner walls is greater than 24 length of pin.

Connecting tube 21 includes linkage section 211, pressure release section 212 and choked flow section 213 from back to front, and 22 outer diameter of lock pin is equal to choked flow 213 internal diameters of section, 213 internal diameter of choked flow section are less than 212 internal diameter of pressure release section, and pressure release section 212 is provided with relief hole 2121, and relief hole 2121 is Through-hole, 11 inner wall of lock body are radially provided with end and cut off hole, and end, which is cut off in hole, has end to cut off 25, and end cuts off 25 length and is greater than End cuts off hole depth, further includes shearing plunger 26, and shearing 26 internal diameter of plunger is greater than 12 outer diameter of lock pin 22 and locking level, shears column Plug 26 includes cut section 261 and recoil section 262 from back to front, and 261 outer wall of cut section and the sealing of 11 inner wall of lock body cooperate, lock body 11 Inner wall is provided with seal groove B, there is sealing ring in seal groove B, and seal groove B is terminating to cut off in front of hole, and recoil 262 outer diameter of section, which is equal to, to be let out 212 relief hole of section, 2121 forward portion internal diameter is pressed, recoil 262 outer wall of section is provided with seal groove A, there is sealing ring in seal groove A, shears 261 outer walls of section are provided with end and cut off slot, and 21 outer wall of connecting tube is provided with diversion trench, and diversion trench is in 2121 front of relief hole, water conservancy diversion To setting, diversion trench is connected to fluted shaft with relief hole 2121, before stopping brill, recoils 262 front end of section in front of 2121 front end of relief hole, instead It rushes section 262 and the sealing of 212 relief hole of pressure release section, 2121 forward portion cooperates, end, which cuts off the insertion of 25 inner ends, to be terminated to cut off in slot, After stopping brill, recoil 262 front end of section cuts off 25 cuttings in 2121 front end rear of relief hole, end.

As shown in Figure 5, Figure 6, choked flow module includes valve housing 31, lock shell 32, lock sleeve 33 and fixed ring 35, center Bar 14, valve housing 31, lock shell 32, lock sleeve 33, fixed ring 35 and outer cylinder 23 are coaxial, and center-pole 14 passes through valve housing 31 Inner cavity, for valve housing 31 in lock shell 32, lock shell 32 passes through 33 inner cavity of lock sleeve, and valve housing 31 includes close from back to front Section C311, diversion section 312 and locking section A313 are sealed, the locking section A313 outer wall is provided with locking slot A, and lock shell 32 is from back to front Including inflow segment B321, outflow section B322 and locking section B323, the inflow segment B322 internal diameter is greater than seal section C311 outer diameter, close It seals section C311 outer diameter and is greater than 312 outer diameter of diversion section, the outflow section B322 internal diameter is equal to seal section C311 outer diameter, flows out section B322 It is provided with tap hole B3221, there is locking hole on locking section B323, tap hole B3221 and locking hole are through-hole, have lock in locking hole Tight ball 34,34 diameter of lock ball are greater than locking hole depth, and lock sleeve 33 includes impact section 331 and locking section C332 from back to front, Locking section C332 inner wall has locking slot B, and it is straight that the distance of the locking slot A slot bottom to locking section B323 inner wall is less than lock ball 34 The distance of diameter, the locking slot A slot bottom to locking section B323 outer wall is not less than 34 diameter of lock ball, and the locking slot B slot bottom arrives The distance of locking section B323 outer wall is less than 34 diameter of lock ball, and the distance of the locking slot B slot bottom to locking section B323 inner wall is not Less than 34 diameter of lock ball, the fixed ring is fixed on locking section B outer wall, and fixed ring 35 is in locking hole rear, impact section 331 Diameter is greater than 35 outer diameter of fixed ring, and locking section C332 is greater than lock shell 32 and locking in 35 front of fixed ring, 23 internal diameter of outer cylinder The outer diameter of set 33,23 inner wall of outer cylinder are connected with emergency gear 232, and emergency gear 232 includes card-tight part 2321 and squeezes from back to front Portion 2322,2322 front end face internal diameter of press section are less than 331 outer diameter of impact section, and 2322 internal diameter of press section is not less than outside fixed ring 35 Diameter, 2321 front end face internal diameter of card-tight part are less than 35 rear end face outer diameter of fixed ring, and 14 front end of center-pole is connected with spacing head 36, spacing head 36 in locking section B323, and for spacing head in front of 36 locking section A313,36 outer wall of spacing head and the gap of lock 32 inner wall of shell are small In locking section A313 nose thickness, the axial distance of 2321 front end face of card-tight part to 2322 front end face of press section, which is equal to, to stop boring preceding lock It is big to the distance of the rear end tap hole B3221 to stop the rear end seal section C311 before boring to the axial distance at the center locking slot B for the tieholen hole heart In stop bore after the locking hole hole heart arrive the center locking slot A axial distance, stop brill after the locking hole hole heart to the center locking slot A axial direction Distance is greater than the distance for stopping boring the preceding front end seal section C311 to the front end tap hole B3221, and lock shell 32 passes through with valve housing 31 The locking of lock ball 34 or constraint relief, it further includes card that lock shell 32, which is locked with lock sleeve 33 by lock ball 34, or constraint relief Ring 37,37 outer diameter of snap ring are greater than 35 internal diameter of fixed ring, and 37 internal diameter of snap ring is less than 35 internal diameter of fixed ring, and snap ring 37 is embedded in locking section In the card slot of B323 outer wall, fixed ring 35 is connected between 37 rear end of snap ring and the outflow front end section B322, the front end locking section C332 By spring supporting, before stopping brill, lock shell 32 and valve housing 31 are locked, and keep fluid passage unobstructed, 23 built-in security gear of outer cylinder 232, when outer cylinder 23 is advanced to defined position, outer cylinder 23 drives emergency gear 232 to hit lock sleeve 33, makes to move outside lock ball 34, The constraint to valve housing 31 is released, valve housing 31 moves forward, and sealing liquid runner stops boring.

121 inner wall of linkage section, outflow section A122 inner wall, seal section B123 rear end face and 14 outer wall of center-pole surround fluid passage A41,11 inner wall of lock body and 12 outer wall of locking level surround fluid passage B42, and 12 inner wall of locking level and outer 14 walls of center-pole surround fluid passage C43,22 inner wall of lock pin and 14 outer wall of center-pole surround fluid passage D44, fluid passage B42 and fluid passage C43 and are connected to by inflow hole 1241, liquid Road C43 is connected to fluid passage D44, and the rear fluid passage A41 is connected to liquid supply equipment, is connected to working equipment in front of tap hole B3221.

Before starting, starting, which cuts off 13 and passes through starting and cut off hole insertion starting, cuts off slot, and locking level 12 cuts off 13 by starting It is fixed in lock body 11, the axial distance of tap hole A1221 opening of external wall to 11 rear end of lock body is less than 113 rear end of fluid passage section to lock The axial distance of 11 rear end of body, tap hole A1221 opening of external wall are closed by seal section A112, and liquid is unable to flow forward, connection 21 front end of pipe is in outer cylinder 23, and pin 24 is in front of groove A221, and 24 inner face of pin is slidably matched with 22 outer wall of lock pin, pin 24 outer ends are embedded in groove B231, and outer cylinder 23 is fixed on outside connecting tube 21 by pin 24, hydraulic the reaching of rear slush pump offer To after initiation value, 12 rear end of locking level is impacted, subtracts disconnected starting and cuts off 13, starting, which cuts off 13, breaks and cut off head for starting and starting is cut off Tail, starting cut off head and cut off in hole in starting, and starting cuts off tail and cuts off in slot in starting, and locking level 12 moves forward, tap hole A1221 The axial distance of opening of external wall to 11 rear end of lock body is greater than axial distance of 113 rear end of fluid passage section to 11 rear end of lock body, fluid passage A41 It is connected to fluid passage B42 by tap hole A1221, fluid passage A41, fluid passage B42, fluid passage C43, fluid passage D44 connection, fluid passage D44 pass through Tap hole B3221 is connected to hydraulic motor, and the hydraulic energy that fluid passage A41 rear liquid supply equipment provides passes through fluid passage A41, fluid passage B42, liquid Road C43, fluid passage D44 are transmitted to front hydraulic motor and drill bit, drive motor, cooling drill bit, before locking level 12 is with pendulum lock pin 22 It moves, 24 inner end of pin is slidably matched with 22 outer wall of lock pin, when groove A221 is slided into forward with pin 24 in same axial position, Outer cylinder 23 utilizes self gravity, generates forward pressure, and groove B231 and 22 contact surface of pin are inclined-plane, groove B231 squeeze pin 24 inclined-planes are followed closely, pin 24 is exited from groove B231, is pressed into groove A221, and the constraint to outer cylinder 23,23 band of outer cylinder are released The workpiece that dynamic front connects moves forward.

Hydraulic motor rotor and drill bit are connected in front of outer cylinder 23, when drilling machine works, outer cylinder 23 moves from back to front, and liquid is logical Liquid passing channle A41, fluid passage B42, fluid passage C43 flow into fluid passage D44, and fluid passage D44 is connected to front hydraulic motor by tap hole B3221, In locking slot A and locking hole, limiter valve shell 31 moves forward lock ball 34, and outer cylinder 23 drives emergency gear 232 to move forward, outer cylinder After 23 are moved to defined position, emergency gear 232 hits lock sleeve 33, makes locking slot B and locking hole face, in fluid passage D44 31 rear end of hydraulic shock valve housing squeezes lock ball 34 and enters locking slot B, and 31 constraint relief of valve housing moves forward, close Envelope section C311 is moved in outflow section B322, blocks the access between fluid passage D44 and tap hole B3221, and fluid passage is truncated, and motor stops Rotation stop is dynamic, liquid Hui Yong, flows back to fluid passage B42, and recoil recoil section 262 moves backward recoil section 262, and cutting terminates to cut off 25, It is connected to fluid passage B42 and 2121 access of relief hole, passes through 2121 pressure release of relief hole.

Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe Various corresponding changes and modifications, but these corresponding changes and modifications can be made according to the present invention by knowing those skilled in the art All it should fall within the scope of protection of the appended claims of the present invention.

Claims (10)

1. a kind of core drilling rig automatic start-stop mechanism, it is characterised in that: including center-pole (14), fluid passage starting module, outer cylinder (23), outer cylinder unlocked state and choked flow module, center-pole (14) pass through fluid passage starting module, outer cylinder unlocked state and choked flow module Inner cavity, fluid passage starting module are connected in outer cylinder unlocked state, outer cylinder (23) rear, fluid passage starting module with outer cylinder unlocked state.

2. core drilling rig automatic start-stop according to claim 1 mechanism, it is characterised in that: the fluid passage starting module includes Lock body (11), locking level (12), starting are cut off (13), and locking level (12) is in lock body (11), locking level (12) and lock body (11) (13) connection is cut off by starting, for the center-pole (14) in locking level (12), lock body (11) includes (112) seal section A, lock Fixed pole (12) includes (123) seal section B, and the seal section A (112) and seal section B (123) sealing cooperate, the seal section B (123) cooperate with center-pole (14) sealing, have between center-pole (14) and locking level (12) fluid passage A (41), locking level (12) is opened Have tap hole A (1221), tap hole A (1221) is connected to fluid passage A (41), and tap hole A (1221) is in seal section B (123) rear, lock Have between body (11) and locking level (12) fluid passage B (42), for fluid passage B (42) in front of seal section A (112), starting cuts off (13) cutting Before, tap hole A (1221) is exported at seal section A (112), fluid passage A (41) forward end seal, after starting cuts off (13) cutting, lock Fixed pole (12) Forward, the outlet tap hole A (1221) are located in front of seal section A (112), and fluid passage A (41) and fluid passage B (42) pass through stream Portal A (1221) connection.

3. core drilling rig automatic start-stop according to claim 2 mechanism, it is characterised in that: the outer cylinder unlocked state includes Connecting tube (21) and lock pin (22), connecting tube (21) rear end are connect with lock body (11), and lock pin (22) rear end and locking level (12) are even It connects, center-pole (14) passes through lock pin (22) inner cavity, and in connecting tube (21), connecting tube (21) leading portion outer diameter is less than outer lock pin (22) Cylinder (23) internal diameter, connecting tube (21) leading portion side wall have Xie Suokong, the fluted A of lock pin (22) outer wall (221), the outer cylinder (23) the fluted B of inner wall (231) further includes pin (24), and pin (24) length is greater than unlock hole depth, and pin (24) is unlocking In hole, pin (24) the outer end chamfered and/or (231) side groove B are inclined-plane, and the width of groove A (221) is not less than Pin (24) inner end width, the width of groove B (231) are not less than pin (24) outer end width, before starting cuts off (13) cutting, even (21) front end is taken in outer cylinder (23), pin (24) is in front of groove A (221), and pin (24) inner face and lock pin (22) are outside Wall is slidably matched, and pin (24) outer end is embedded in groove B (231), after starting cuts off (13) cutting, locking level (12) band pendulum lock pin (22) it moves forward, solution lockhole and groove A (221) face, pin (24) inner end are embedded in groove A (221), and pin (24) inner face arrives The distance of outer cylinder (23) inner wall is greater than pin (24) length.

4. core drilling rig automatic start-stop according to claim 3 mechanism, it is characterised in that: the choked flow module includes valve Shell (31), lock shell (32) and trigger mechanism, center-pole (14) pass through valve housing (31) inner cavity, and valve housing (31) is being locked In shell (32), valve housing (31) includes seal section C (311) and diversion section (312) from back to front, locks shell (32) You Houzhi Preceding includes inflow segment B (321) and outflow section B (322), there is fluid passage D (44), fluid passage D between center-pole (14) and inflow segment B (321) (44) rear end connection fluid passage B (42), inflow segment B (322) internal diameter are greater than seal section C (311) outer diameter, and seal section C (311) is outside Diameter is greater than diversion section (312) outer diameter, and outflow section B (322) internal diameter is equal to seal section C (311) outer diameter, and outflow section B (322) is opened Have tap hole B (3221), tap hole B (3221) is connected to workpiece, and before stopping brill, (311) front end seal section C is in inflow segment B (321), fluid passage D (44) is connected to tap hole B (3221), and after stopping brill, seal section C (311) and outflow section B (322) sealing cooperate, Fluid passage D (44) and tap hole B (3221) separate.

5. core drilling rig automatic start-stop according to claim 4 mechanism, it is characterised in that: the valve housing (31) is also wrapped It includes locking section A (313), locking section A (313) is connect with diversion section (312) front end, and the lock shell (32) further includes locking section B (323), locking section B (323) is connected with outflow section B (322) front end, and outer cylinder (23) inner wall is connected with emergency gear (232), institute Stating trigger mechanism includes lock sleeve (33), fixed ring (35), emergency gear (232), locking section A (313) and locking section B (323), It locks shell (32) and passes through lock sleeve (33) inner cavity, locking section A (313) outer wall is provided with locking slot A, and locking section B has on (323) Locking hole, locking hole are through-hole, are had in locking hole lock ball (34), and lock ball (34) diameter is greater than locking hole depth, lock sleeve It (33) from back to front include impact section (331) and locking section C (332), locking section C (332) inner wall has locking slot B, the fixation Ring (35) is fixed on locking section B (323) outer wall, and fixed ring (35) is greater than fixed ring in locking hole rear, impact section (331) internal diameter (35) outer diameter, locking section C (332) in front of the fixed ring (35), emergency gear (232) include from back to front card-tight part (2321) and Press section (2322), press section (2322) front end face internal diameter are less than impact section (331) outer diameter, and press section (2322) internal diameter is not less than Fixed ring (35) outer diameter, card-tight part (2321) front end face internal diameter are less than fixed ring (35) rear end face outer diameter, center-pole (14) front end It is connected with spacing head (36), spacing head (36) is in locking section B (323), and spacing head (36) is in front of locking section A (313), card-tight part (2321) axial distance of front end face to press section (2322) front end face, which is equal to, stops boring the preceding locking hole hole heart to the center locking slot B Axial distance, the distance of (311) rear end seal section C to tap hole B (3221) rear end is greater than before stopping boring stop brill after the locking hole hole heart To the axial distance at the center locking slot A, stop the locking hole hole heart after boring to the axial distance at the center locking slot A greater than stopping boring preceding sealing Distance of section (311) front end C to tap hole B (3221) front end.

6. core drilling rig automatic start-stop according to claim 5 mechanism, it is characterised in that: the center-pole (14) and lock pin (22) have between locking level (12) fluid passage C (43), locking level (12) side wall is provided with inflow hole (1241), fluid passage B (42) and liquid Road C (43) is connected to by inflow hole (1241), and fluid passage C (43) is connected to fluid passage D (44), and connecting tube (21) includes letting out from back to front Section (212) and choked flow section (213) are pressed, lock pin (22) and choked flow section (213) sealing cooperate, and choked flow section (213) internal diameter is less than pressure release Section (212) internal diameter, pressure release section (212) are provided with relief hole (2121), and relief hole (2121) is through-hole, have shearing in fluid passage B (42) Plunger (26), shearing plunger (26) internal diameter are greater than lock pin (22) and locking level (12) outer diameter, and shearing plunger (26) is cut by terminating Pin (25) is connect with lock body (11), and shearing plunger (26) includes cut section (261) and recoil section (262), cut section from back to front (261) outer wall and the sealing of lock body (11) inner wall cooperate, before recoil section (262) outer diameter is equal to pressure release section (212) relief hole (2121) Square part internal diameter, before stopping brill, recoil section (262) front end is in front of relief hole (2121) front end, recoil section (262) and pressure release section (212) relief hole (2121) forward portion sealing cooperation, after stopping brill, front liquid reflux impact shear plunger (26) front end is cut It cuts plunger (26) to move back, recoil section (262) front end is at relief hole (2121) front end rear, fluid passage B (42) and relief hole (2121) Connection.

7. core drilling rig automatic start-stop according to claim 2 mechanism, it is characterised in that: locking level (12) outer wall and Lock body (11) inner wall has mutually matched limited step.

8. core drilling rig automatic start-stop according to claim 2 mechanism, it is characterised in that: it further include locking nut (15), Locking nut (15) perforation before and after lock body (11) rear, locking nut (15), center-pole (14) pass through in locking nut (15) Chamber, locking nut (15) front end are threadedly coupled with lock body (11) rear end, and starting cuts off (13) at the screw thread of lock body (11) rear end.

9. core drilling rig automatic start-stop according to claim 8 mechanism, it is characterised in that: the locking nut (15) includes Fixed section (151) and thread segment (152), locking level (12) step rear outer diameter are less than fixed section (151) internal diameter, fixed section (151) internal diameter is less than outer diameter at locking level (12) step, connect in thread segment (152) with lock body (11) rear end.

10. core drilling rig automatic start-stop according to claim 8 mechanism, it is characterised in that: locking nut (15) axis To locking hole A is provided with, the locking hole A is through-hole, and it is blind hole, locking hole A that lock body (11) rear end face, which has locking hole B, locking hole B, It is matched with locking hole B, further includes fixing screws (16), fixing screws (16) length is greater than locking hole A depth, fixing screws (16) In locking hole A, fixing screws (16) front end is passed through in locking hole A insertion locking hole B.