CN208934628U - A kind of rope salvaging type pitching, which builds the pressure, forces core drill - Google Patents

Abstract

A kind of rope salvaging type pitching, which builds the pressure, forces core drill, it includes outer pipe assembly and inner tube assembly；Be hit by a bullet block head, bullet card room, outer tube, reamer, centering ring and core bit of the outer pipe assembly from top to bottom successively assembles, and forms cavity up and down；Said inner tube assembly is placed in outer pipe assembly cavity, inner tube assembly from top to bottom sets gradually fishing spearhead component, bullet card positioning mechanism, notify mechanism in place, force coring differential attachment, stifled heart alarm mechanism, single action mechanism, inner tube and hold together heart claw assembly, its special feature is that: the pressure coring differential attachment setting pitching component and differential assembly, coring differential attachment is forced to realize the closure of lower drilling tool drilling fluid flow channels in such a way that inner tube throws steel ball, lower drilling tool is set to generate differential displacement by fluid power pressurization again, hold together heart claw assembly stress and inwardly collapses completion pressure coring process.Core recovery percentage and coring efficiency when the utility model has achieved the purpose that improve the troublesome zone drillings coring such as loose, broken.

Description

A kind of rope salvaging type pitching, which builds the pressure, forces core drill

Technical field

The utility model relates to a kind of core drill, especially a kind of rope salvaging type pitching, which builds the pressure, forces core drill, Belong to drilling equipment technical field.

Background technique

In order to grasp subsurface geology situation, the mode for generalling use drilling and coring delivery directly obtains true and reliable subterranean strata Data.Wire line coring method has many advantages, such as that drilling efficiency is high, labor intensity is small, at low cost, boring accidents are few, is widely answered For prospecting drilling fields such as Solid Mineral geological prospecting, troublesome zone drilling, hydrogeologic prospecting, oil drilling prospectings.

Core recovery percentage is a Xiang Zhibiao mostly important in drilling operation, loose, broken, cementing properties is poor, weak, easy When the troublesome zone drillings coring such as erosion, core recovery percentage is extremely low, or even the case where not acquiring rock core occurs.The prior art In, mainly by forcing core drill to solve the problems, such as that core recovery percentage is low, but forcing core drill at present is mostly that single action is double Pipe drilling tool need to carry out mentioning drilling through the heart, and coring efficiency substantially reduces, and a kind of fluid power adding pressure type cord coring drill is met the tendency of thus And give birth to, which realizes the complete of down-hole equipment inside drilling fluid flow channels by pilot operated directional control valve Face blocks, and since the design of its pressing mechanism is relative complex, requires hydraulic dynamic sealing high, it is difficult to promote and apply.

In addition there is also the defects in terms of following two for cord coring drill in the prior art, first is that inner tube positioning mechanism master It to include steel ball positioning and the locking position two ways of single hinge joint bullet, wherein steel ball positioning method ball is that point or line connect with bullet card room Touching, steel ball and bullet card room local compression are serious, and steel ball surface is easily driven plain, and the rollback effect of steel ball are influenced, especially in rock core When blocking serious, bullet card room is very big by steel ball active force, and bullet card room easily expands, cracks, and lower drilling tool, drill bit are easy to fall off extremely Bottom hole causes drilling accident；And single hinge joint bullet card is plane stress, since contact surface is plane, bullet card is lost back when blocking up the heart Turn space, dieback phenomenon easily occur, interior pipe drilling tool can not be salvaged.Second is that the alarm gasket of stifled heart alarm mechanism is mounted on single acting engine Structure upper end, basket stress squeezes alarm gasket when blocking up the heart, is built the pressure by blocking drilling fluid fluid space to realize, gasket of alarming After blocking water route comprehensively, the feedback that builds the pressure to drilling fluid pump, until operator's discovery needs a period of time, report in this period Easily there is excessive compression in alert gasket, can not bounce back after gasket spreading of alarming, when salvaging inner tube, the alarm gasket of spreading cannot lead to The seat ring in outer tube is crossed, cannot achieve inner tube salvaging, cord coring drill can only be greatly reduced by proposing drilling row coring Coring efficiency.

Utility model content

The utility model provides that a kind of structure is simple, good reliability, rope salvaging type pitching practical, easy to spread It builds the pressure and forces core drill, it is intended to be built the pressure by efficient rope salvaging mode and pitching and force the combination of coring mode, reached To core recovery percentage when improving the troublesome zone drillings corings such as loose, broken, cementing properties is poor, weak, easy erosion and coring The purpose of efficiency.

To achieve the above objectives, the present invention adopts the following technical solutions:

A kind of rope salvaging type pitching, which builds the pressure, forces core drill, it includes outer pipe assembly and inner tube assembly；The outer tube Assembly is equipped with adapter coupling, bullet card room, outer tube, reamer, centering ring and core bit, the adapter coupling, bullet card room, outer Pipe, reamer, centering ring and core bit from top to bottom successively assemble, and form cavity up and down；Said inner tube assembly is set In outer pipe assembly cavity, and by sealed hanging ring and seat ring cooperation realize inner tube assembly axially position, inner tube assembly by Fishing spearhead component is set gradually under, bullet card positioning mechanism, the mechanism that notifies in place, forces coring differential attachment, stifled heart alarm Mechanism, single action mechanism, inner tube and hold together heart claw assembly, the radial positioning of inner tube assembly is realized by bullet card positioning mechanism, especially Place is: the pressure coring differential attachment setting pitching component and differential assembly force coring differential attachment to be thrown with inner tube Steel ball mode realizes the closure of lower drilling tool drilling fluid flow channels, then so that lower drilling tool is generated differential position by fluid power pressurization Move, hold together heart claw assembly stress inwardly collapse completion force coring process.

Above-mentioned rope salvaging type pitching, which builds the pressure, forces core drill, and the pitching component includes pitching piston, pitching piston Limit sleeve, pitching spring, steel ball room and steel ball；The pitching piston is hollow cylinder, and the upper end is equipped with bearing disc, and lower end is worn Steel ball room is crossed, is equipped with inside wedge-shaped boss in pitching piston base, in normal drilling process, passes through wedge-shaped boss and steel ball room Inner wall cooperates support steel ball in steel ball room, assembles pitching spring in a manner of precommpression between bearing disc and steel ball room, and The outside of pitching spring is set with pitching piston limit set.

Above-mentioned rope salvaging type pitching, which builds the pressure, forces core drill, and the differential assembly includes pressure piston housing, pressure Piston, upper positioning pin, pressure piston limit sleeve, pressure piston guide sleeve, pressure release set, suspension joint, suspension gasket, shearing are slided Set, lower positioning pin, guide sleeve and reducer union；The pressure piston is placed in pressure piston jacket internal, positioned at pitching piston Lower section, pressure piston are hollow cylinder, and inner cavity is two sections formula shoulder hole structure, and inner cavity upper section aperture is greater than under inner cavity Drainage hole is arranged on the side wall of inner cavity upper section in hole diameter, is set with pressure piston limit sleeve, pressure in the outside on pressure piston top Power piston is connect by upper positioning pin with pressure piston limit sleeve, pressure piston lower part be equipped with suspension joint, suspension gasket, cut Sliding sleeve, guide sleeve and reducer union are cut, pressure piston is connect by lower positioning pin with shearing sliding sleeve；The pressure release set is connected to pressure Between power piston jacket and guide sleeve, flow channels between connection inner tube assembly and outer pipe assembly are equipped on pressure release set side wall Relief hole, in troublesome zone drillings corings such as loose, broken, cementing properties is poor, weak, easy erosions, steel ball drop is living to pressure Plug inner cavity stepped hole variable diameter position builds the pressure the closure of drilling fluid flow channels, and pressure piston is to moving down under drilling liquid pressure effect Dynamic, upper positioning pin is sheared, and pressure piston pushes lower drilling tool to generate differential displacement.

Above-mentioned rope salvaging type pitching, which builds the pressure, forces core drill, and special feature also resides in: the bullet card positioning mechanism Using more piece hinge bullet card structure, be arranged in bullet card positioning mechanism recovery tube, play card holder, plate of pulling back, play clamp, play deck, Middle hinge and lower hinge；The recovery tube upper/lower terminal respectively with fishing spearhead component, in place notify mechanism assembly, in recovery tube It is interior with shooting card holder, and pin shaft is fixedly mounted in recovery tube upper and lower part；The card holder that plays is equipped with the long hole cooperated with pin shaft And the elongated slot with bullet clamp cooperation；The bullet clamp include the hinged caliper of left and right two, articulated shaft and bullet deck Assembly, the caliper of left and right two passes through elongated slot in bullet card holder and is installed in the bullet card chamber interior walls of outer pipe assembly, two caliper upper ends Equal hinge mounted is pulled back plate, and two are pulled back plate also together with the pin shaft hinge mounted for being fixed on recovery tube top；The bullet card Seat and middle hinge hinge mounted；The middle hinge and lower hinge hinge mounted；The lower hinge lower end and bullet card holder hinge mounted, And it is arranged and is mounted on the locking escape groove of recovery tube bottom bearing pin cooperation in lower hinge.

Above-mentioned rope salvaging type pitching, which builds the pressure, forces core drill, is additionally provided with reset spring in the bullet card positioning mechanism And spring bearer plate, and annular boss is set on playing card holder；The spring bearer plate, which is fixed on, plays card holder upper end；The reset spring It is sleeved on and plays outside card holder, positioned between spring bearer plate and the annular boss of bullet card holder, assembled in a manner of precommpression, by multiple Position spring limits the relative position for playing card holder and recovery tube top bearing pin, bottom bearing pin.

Above-mentioned rope salvaging type pitching, which builds the pressure, forces core drill, and the stifled heart alarm mechanism, which is equipped with, divides water jacket, draining to connect Head, outer suspension joint, interior suspension joint, adjusts connector, mandrel and nut at stifled heart alarm gasket；The drainage joint and pressure In coring differential attachment reducer union be threadedly coupled, it is described divide water jacket upper end be disk-like structure, divide water jacket by disk-like structure with Drainage joint assembly is set with interior suspension joint in dividing water jacket inner cavity, and outer suspension joint is arranged below water jacket dividing, described outer Suspension joint and interior suspension joint are equipped, form cyclic annular drilling fluid overcurrent dividing between water jacket, outer suspension joint and drainage joint Channel, and the drainage hole that is staggeredly arranged up and down is equipped on dividing water jacket and drainage joint side wall, the mandrel by external screw thread with Connector screw-internal thread fit is adjusted, loading nut is covered outside mandrel；The stifled heart alarm gasket is mounted on point water jacket and outer suspension connects Between head, after rock core is full of inner tube, rock core pressure is transferred to by stifled heart bedmattress with alarm by mandrel, adjusting connector and outer suspension joint Piece is radially expanded stifled heart alarm gasket, will divide the cyclic annular drilling fluid formed between water jacket, outer suspension joint and drainage joint Flow channels block, and increase prompt alarm by drilling liquid pressure.

Above-mentioned rope salvaging type pitching, which builds the pressure, forces core drill, the stifled heart alarm gasket setting of the stifled heart alarm mechanism Two groups, two groups of stifled heart alarm gaskets are isolated by separate spacers.

Above-mentioned rope salvaging type pitching, which builds the pressure, forces core drill, it is described notify in place mechanism be equipped with notify valve positioning sleeve, Connector sleeve, damping ring and valve body of notifying；The valve positioning sleeve of notifying is mounted on the recovery tube lower end of bullet card positioning mechanism；The report Letter valve body, which is mounted on, notifies on valve positioning sleeve；The bullet card holder lower end side of being connected through a screw thread of the connector sleeve and bullet card positioning mechanism Damping ring is arranged in formula assembly inside connector sleeve, and the damping ring inner cavity is variable cross-section chamber, in inner tube assembly launch process In, after interior pipe drilling tool falls to setting position, drilling fluid pump circulation is opened, under the action of drilling liquid pressure, valve body of notifying is worn The variable cross-section chamber of overdamp ring, a process for making drilling fluid flow channels experience first close, open again, drilling fluid pump pressure Variation be first to increase and reduce again, prompt pipe drilling tool in operator to launch in place with this.

The utility model is that a kind of rope salvaging type pitching builds the pressure and forces core drill, it by the way of built-in steel ball, Pitching operation is realized by the variation of drilling fluid pump discharge capacity, is built the pressure by the drilling fluid flow channels that steel ball blocks lower drilling tool, then So that pressure piston is generated differential displacement by fluid power pressurization, and makes to hold together heart claw assembly stress inwardly to collapse completion and force coring Thus it is low to solve the bad grounds core recovery percentages such as loose, broken, weak, easy erosion, or even takes asking less than rock core for journey Topic, effectively increases the core recovery percentage of above-mentioned bad ground；The utility model has merged cord coring drill fast salvaging Advantage improves the coring efficiency of the bad grounds such as loose, broken, weak, easy erosion, bores behaviour additionally, due to being not required to mention Make, reduce the swabbing action of drilling fluid, the stability of the bad ground borehole wall has been effectively ensured, reduces drilling accident generation Risk；The utility model also optimization design bullet card positioning mechanism, stifled heart alarm mechanism and the mechanism that notifies in place, to solve comprehensively Determined bad ground core-drilling when the interior pipe drilling tool that easily occurs can not salvage problem, further improve drilling tool use it is reliable Property；The rope salvaging type pitching builds the pressure the coring operation for forcing core drill to be equally applicable to complete stratum, can effectively mention The disconnected heart effect of height.

Detailed description of the invention

Fig. 1 is the utility model general structure schematic diagram；

Fig. 2 is I segment structure enlarged drawing in Fig. 1；

Fig. 3 is II segment structure enlarged drawing in Fig. 1；

Fig. 4 is III segment structure enlarged drawing in Fig. 1；

Fig. 5 is to play locking position structural scheme of mechanism；

Fig. 6 is structural scheme of mechanism of notifying in place；

Fig. 7 is to force coring differential attachment schematic diagram；

Fig. 8 is stifled heart alarm mechanism schematic diagram；

Fig. 9 is the bullet card positioning mechanism course of work schematic diagram when inner tube assembly is salvaged；

Figure 10 is mechanism course of work schematic diagram of notifying in place；

Figure 11 is to force coring differential attachment course of work schematic diagram；

Figure 12 is stifled heart alarm mechanism course of work schematic diagram.

Each list of reference numerals in figure are as follows:

1, adapter coupling, 2, bullet card room, 3, outer tube, 4, reamer, 5, centering ring, 6, core bit；7, spearhead component is fished out, 8, bullet card positioning mechanism, 8-1, recovery tube, 8-2, spring bearer plate, 8-3,

Bullet card holder, 8-4, reset spring, 8-5, plate of pulling back, 8-6, bullet clamp, 8-7, bullet deck, 8-8, middle hinge, 8-9, Lower hinge, 10, pressure coring differential attachment, 10-1, pitching piston, 10-2, pitching piston limit set, 10-3, pitching spring, 10-4, steel ball room, 10-5, steel ball, 10-6, pressure piston, 10-7, pressure piston housing, 10-8, upper positioning pin, 10-9, pressure Piston limit set, 10-10, pressure piston guide sleeve, 10-11, pressure release set, 10-12, suspension joint, 10-13, suspension gasket, 10-14, shearing sliding sleeve, 10-15, lower positioning pin, 10-16, guide sleeve, 10-17, reducer union, 11, stifled heart alarm mechanism, 11- 1, dividing water jacket, 11-2, drainage joint, 11-3, the stifled heart are alarmed gasket, 11-4, separate spacers, 11-5, outer suspension joint, 11-6, 11-7, interior suspension joint adjusts connector, 11-8, mandrel, 11-9, nut, 12, single action mechanism, 13, inner tube, and 14, hold together heart pawl group Part, 15, sealed hanging ring, 16, seat ring.

Specific embodiment

With reference to the accompanying drawing and specific embodiment the utility model is described in further detail.

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, the utility model builds the pressure for a kind of rope salvaging type pitching and forces core drill, It includes outer pipe assembly and inner tube assembly；The outer pipe assembly is equipped with adapter coupling 1, bullet card room 2, outer tube 3, reamer 4, righting Ring 5 and core bit 6, the adapter coupling 1, bullet card room 2, outer tube 3, reamer 4, centering ring 5 and core bit 6 are from top to bottom It successively assembles, forms cavity up and down；Said inner tube assembly is placed in outer pipe assembly cavity, and passes through sealed hanging ring 15 and seat ring 16 cooperation realize inner tube assembly axially position, inner tube assembly from top to bottom set gradually fishing spearhead component 7, play it is locking Position mechanism 8, the mechanism that notifies in place 9 force coring differential attachment 10, stifled heart alarm mechanism 11, single action mechanism 12, inner tube 13 and hold together Heart claw assembly 14 realizes the radial positioning of inner tube assembly by bullet card positioning mechanism 8, its special feature is that, the pressure takes Pitching component and differential assembly is arranged in heart differential attachment 10, and coring differential attachment 10 is forced to realize lower part in such a way that inner tube throws steel ball The closure of drilling tool drilling fluid flow channels, then by fluid power pressurization make lower drilling tool generate differential displacement, hold together heart claw assembly 14 by Power inwardly collapses completion and forces coring process.

Referring to Fig. 7, rope salvaging type pitching described in the utility model, which builds the pressure, forces core drill, and the pitching component includes Pitching piston 10-1, pitching piston limit set 10-2, pitching spring 10-3, steel ball room 10-4 and steel ball 10-5；The pitching is living Plug 10-1 is hollow cylinder, and the upper end is equipped with bearing disc, and lower end passes through steel ball room 10-4, sets in the bottom of pitching piston 10-1 There is an inside wedge-shaped boss, in normal drilling process, passes through wedge-shaped boss and steel ball room 10-4 inner wall cooperates support steel ball 10-5 In the 10-4 of steel ball room, pitching spring 10-3 is assembled in a manner of precommpression between bearing disc and steel ball room 10-4, and in pitching The outside suit pitching piston limit of spring 10-3 covers 10-2.The differential assembly includes pressure piston housing 10-7, pressure work Plug 10-6, upper positioning pin 10-8, pressure piston limit sleeve 10-9, pressure piston guide sleeve 10-10, pressure release set 10-11, suspension connect Head 10-12, suspension gasket 10-13, shearing sliding sleeve 10-14, lower positioning pin 10-15, guide sleeve 10-16 and reducer union 10-17； The pressure piston 10-6 is placed in inside pressure piston housing 10-7, positioned at the lower section of pitching piston 10-1, pressure piston 10-6 For hollow cylinder, inner cavity is two sections formula shoulder hole structure, and inner cavity upper section aperture is greater than inner cavity lower section aperture, in inner cavity Drainage hole is set on the side wall of upper section, is set with pressure piston limit sleeve 10-9 in the outside on the top pressure piston 10-6, pressure is living Plug 10-6 is connect by upper positioning pin 10-8 with pressure piston limit sleeve 10-9, is equipped with suspension joint in the lower part pressure piston 10-6 10-12, suspension gasket 10-13, shearing sliding sleeve 10-14, guide sleeve 10-16 and reducer union 10-17, pressure piston 10-6 pass through Lower positioning pin 10-15 is connect with shearing sliding sleeve 10-14；The pressure release set 10-11 is connected to pressure piston housing 10-7 and guiding It covers between 10-16, the pressure release of flow channels between connection inner tube assembly and outer pipe assembly is equipped on pressure release set 10-11 side wall Hole.

Referring to Figure 11, rope salvaging type pitching described in the utility model, which builds the pressure, forces core drill, forces coring differential 10 course of work of mechanism are as follows: in troublesome zone drillings corings such as loose, broken, cementing properties is poor, weak, easy erosions, steel ball 10- 5, which fall to the inner cavity pressure piston 10-6 stepped hole variable diameter position, builds the pressure the closure of drilling fluid flow channels, in drilling hydraulic masterpiece It is moved down with lower pressure piston 10-6, upper positioning pin 10-8 is sheared, and it is preparatory that pressure piston 10-6 pushes lower drilling tool to generate The maximum differential of setting is displaced H, and the relief hole of drainage hole of the drilling fluid through pressure piston 10-6 side wall, pressure release set flows into inner tube In outer tube annular gap, drilling fluid normal circulation, drilling fluid pump pressure release above mentions drilling rod, breaks rock core, and tripping in fisher is salvaged Inner tube assembly then takes out rock core to ground；When coring is excessively soft, broken formation after, stratum becomes complete, is hardened, and holds together the heart 14 part of claw assembly is collapsed, and holds rock core tightly, and differential displacement at this time is H1(H1 < H), work of the pressure piston 10-6 in drilling liquid pressure Continuing to move down under, lower positioning pin 10-15 is sheared, pressure release water route connection, drilling fluid pump pressure release above mentions drilling rod, breaks rock core, Tripping in fisher salvages inner tube assembly to ground, then takes out rock core.

Referring to Fig. 5, rope salvaging type pitching described in the utility model, which builds the pressure, forces core drill, the bullet card positioning mechanism 8 use more piece hinge bullet card structure, and recovery tube 8-1, spring bearer plate 8-2 are arranged in bullet card positioning mechanism, plays card holder 8-3, is multiple Position spring 8-4, it the plate 8-5 that pulls back, plays clamp 8-6, play deck 8-7, middle hinge 8-8 and lower hinge 8-9；On the recovery tube 8-1, With fishing spearhead component 7, the assembly of mechanism 9 of notifying in place, match in recovery tube 8-1 respectively and shoot card holder 8-3, and recycling in lower both ends Pin shaft is fixedly mounted in the upper and lower part pipe 8-1；It is described to play what card holder 8-3 cooperated equipped with the long hole cooperated with pin shaft and with bullet clamp Elongated slot, and annular boss is set on playing card holder 8-3；The bullet clamp 8-6 includes the hinged caliper of left and right two, Articulated shaft and bullet deck 8-7 assembly, the calipers of left and right two, which pass through, plays the bullet card room 2 that elongated slot on card holder 8-3 is installed on outer pipe assembly On inner wall, pull back plate 8-5 in two equal hinge mounteds in caliper upper end, two pull back plate 8-5 also be fixed on the top recovery tube 8-1 Pin shaft hinge mounted together；The bullet deck 8-7 and middle hinge 8-8 hinge mounted；The middle hinge 8-8 and lower hinge 8- 9 hinge mounteds；The lower end the lower hinge 8-9 and bullet card holder 8-3 hinge mounted, and be arranged and be mounted on back on lower hinge 8-9 The locking escape groove of closed tube 8-1 bottom bearing pin cooperation；The spring bearer plate 8-2, which is fixed on, plays the upper end card holder 8-3；The reset bullet Spring 8-4 be sleeved on play card holder 8-3 outside, positioned at spring bearer plate 8-2 and play card holder 8-3 annular boss between, with precommpression Mode is assembled, and the relative position for playing card holder 8-3 and recovery tube 8-1 top bearing pin, bottom bearing pin is limited by reset spring 8-4.

Referring to Fig. 9, rope salvaging type pitching described in the utility model, which builds the pressure, forces core drill, bullet card positioning mechanism 8 The course of work when inner tube assembly is salvaged are as follows: after inner tube 13 is full of rock core, bullet card positioning mechanism 8 is in dieback state；Fisher After being connect with fishing spearhead component 7, above mentions fisher and recovery tube 8-1 is driven to move up, move up an idle stroke, recovery tube 8-1 first Bottom bearing pin also follows recovery tube to move up, and lower hinge 8-9 limit at this time releases, and more piece linkage becomes slack；Continue above to mention one Set a distance, more piece hinge forced contraction are conceded and play clamp 8-6 recycling space, play clamp 8-6 and inwardly, downwards recycled dead point, solve Except dieback state；Continue above to mention fisher, pan position is made on recovery tube 8-1 to reach maximum, the band clamp 8-6 that moves all is recycled to It plays inside card holder 8-3, guarantees that inner tube assembly exterior flat is suitable, reduce pick-up drag.

Referring to Fig. 8, rope salvaging type pitching described in the utility model, which builds the pressure, forces core drill, blocks up heart alarm mechanism 11 Equipped with dividing water jacket 11-1, drainage joint 11-2, stifled heart alarm gasket 11-3, outer suspension joint 11-5, interior suspension joint 11-6, adjust Save connector 11-7, mandrel 11-8 and nut 11-9；The drainage joint 11-2 and reducer union in pressure coring differential attachment 10 10-17 is threadedly coupled, described that the upper end water jacket 11-1 is divided to be disk-like structure, and water jacket 11-1 is divided to pass through disk-like structure and drainage joint 11-2 assembly is set with interior suspension joint 11-6 in dividing the inner cavity water jacket 11-1, and the outer suspension of setting below water jacket 11-1 is being divided to connect Head 11-5, the outer suspension joint 11-5 and interior suspension joint 11-6 are equipped, are dividing water jacket 11-1, outer suspension joint 11-5 and row Cyclic annular drilling fluid flow channels are formed between water swivel 11-2, and equipped with upper on dividing water jacket 11-1 and drainage joint 11-2 side wall Under the drainage hole that is staggeredly arranged, the mandrel 11-8 is by external screw thread and adjusts connector 11-7 screw-internal thread fit, in mandrel 11-8 Outside covers loading nut 11-9；The stifled heart alarm gasket 11-3 is mounted between point water jacket 11-1 and outer suspension joint 11-5, is blocked up Heart alarm gasket 11-3 is arranged two groups, and two groups of stifled hearts alarm gasket 11-3 are isolated by separate spacers 11-4.

Referring to Figure 12, rope salvaging type pitching described in the utility model, which builds the pressure, forces core drill, blocks up heart alarm mechanism 11 course of work are as follows:, will by mandrel 11-8, adjusting connector 11-7 and outer suspension joint 11-5 after rock core is full of inner tube 13 Rock core pressure is transferred to stifled heart alarm gasket 11-3, is radially expanded stifled heart alarm gasket 11-3, will divide water jacket 11-1, outer outstanding The cyclic annular drilling fluid flow channels formed between hanging joint 11-5 and drainage joint 11-2 block, and are mentioned by drilling liquid pressure raising Show alarm.

Referring to Fig. 6, rope salvaging type pitching described in the utility model, which builds the pressure, forces core drill, the mechanism that notifies in place 9 Equipped with the valve positioning sleeve 9-1 that notifies, connector sleeve 9-2, damping ring 9-3 and the valve body 9-4 that notifies；The valve positioning sleeve 9-1 installation of notifying In the lower end recovery tube 8-1 of bullet card positioning mechanism 8；The valve body 9-4 that notifies, which is mounted on, to notify on valve positioning sleeve 9-1；The company The lower end bullet card holder 8-3 of female connector 9-2 and bullet card positioning mechanism 8 is connected through a screw thread mode and assembles, and is arranged inside connector sleeve 9-2 Damping ring 9-3, the inner cavity the damping ring 9-3 are variable cross-section chamber.

Referring to Figure 10, rope salvaging type pitching described in the utility model, which builds the pressure, forces core drill, the mechanism that notifies in place 9 The course of work are as follows: when inner tube assembly is launched, after interior pipe drilling tool falls to setting position, drilling fluid pump circulation is opened, in drilling well Under the action of hydraulic coupling, the valve body 9-4 that notifies passes through the variable cross-section chamber of damping ring 9-3, seals drilling fluid flow channels experience first The process close, opened again, the variation of drilling fluid pump pressure are first to increase to reduce again, prompt pipe drilling tool in operator with this It has launched in place.

Referring to Fig. 1 to Figure 12, the utility model builds the pressure for a kind of rope salvaging type pitching and forces core drill, in its use The mode for setting steel ball realizes pitching operation by the variation of drilling fluid pump discharge capacity, the drilling well of lower drilling tool is blocked by steel ball 10-5 Liquid flow channels build the pressure, then so that pressure piston 10-6 is generated differential displacement by fluid power pressurization, and make to hold together 14 stress of heart claw assembly It inwardly collapses and completes to force coring process, thus solve the bad grounds core recovery percentages such as loose, broken, weak, easy erosion It is low, or even the problem of take less than rock core, effectively increase the core recovery percentage of above-mentioned bad ground；The utility model has merged rope The advantage of rope core drill fast salvaging improves the coring efficiency of the bad grounds such as loose, broken, weak, easy erosion, Operation is bored additionally, due to being not required to mention, reduces the swabbing action of drilling fluid, the stability of the bad ground borehole wall has been effectively ensured, drop The risk that low drilling accident occurs；It the utility model also optimization design bullet card positioning mechanism 8, stifled heart alarm mechanism 11 and arrives Position notifies mechanism 9, so that the interior pipe drilling tool easily occurred when comprehensively solve bad ground core-drilling can not salvage problem, into one Step improves the reliability that drilling tool uses；The rope salvaging type pitching, which builds the pressure, forces core drill to be equally applicable to complete stratum Coring operation can effectively improve disconnected heart effect.

Claims (7)

1. a kind of rope salvaging type pitching, which builds the pressure, forces core drill, it includes outer pipe assembly and inner tube assembly；The outer tube is total At equipped with adapter coupling (1), bullet card room (2), outer tube (3), reamer (4), centering ring (5) and core bit (6), the bullet card Stopper (1), bullet card room (2), outer tube (3), reamer (4), centering ring (5) and core bit (6) from top to bottom successively assemble, shape At cavity up and down；Said inner tube assembly is placed in outer pipe assembly cavity, and passes through sealed hanging ring (15) and seat ring (16) inner tube assembly axially position is realized in cooperation, and inner tube assembly from top to bottom sets gradually fishing spearhead component (7), bullet card localization machine Structure (8), the mechanism that notifies in place (9) force coring differential attachment (10), stifled heart alarm mechanism (11), single action mechanism (12), inner tube (13) and hold together heart claw assembly (14), the radial positioning of inner tube assembly is realized by bullet card positioning mechanism (8), characterized in that described Coring differential attachment (10) setting pitching component and differential assembly are forced, coring differential attachment (10) is forced to throw steel ball side with inner tube Formula realizes the closure of lower drilling tool drilling fluid flow channels, then so that lower drilling tool is generated differential displacement by fluid power pressurization, holds together the heart Claw assembly (14) stress inwardly collapses completion and forces coring process.

2. rope salvaging type pitching according to claim 1, which builds the pressure, forces core drill, characterized in that the pitching component Including pitching piston (10-1), pitching piston limit set (10-2), pitching spring (10-3), steel ball room (10-4) and steel ball (10- 5)；The pitching piston (10-1) is hollow cylinder, and the upper end is equipped with bearing disc, and lower end passes through steel ball room (10-4), throwing The bottom of ball piston (10-1) is equipped with inside wedge-shaped boss, in normal drilling process, passes through wedge-shaped boss and steel ball room (10- 4) in the inner wall cooperation room support steel ball (10-5) Yu Gangqiu (10-4), with precommpression side between bearing disc and steel ball room (10-4) Formula assembles pitching spring (10-3), and is set with pitching piston limit set (10-2) in the outside of pitching spring (10-3).

3. rope salvaging type pitching according to claim 1 or 2, which builds the pressure, forces core drill, characterized in that described differential Component includes pressure piston housing (10-7), pressure piston (10-6), upper positioning pin (10-8), pressure piston limit sleeve (10- 9), pressure piston guide sleeve (10-10), pressure release set (10-11), suspension joint (10-12), suspension gasket (10-13), shearing are slided Cover (10-14), lower positioning pin (10-15), guide sleeve (10-16) and reducer union (10-17)；The pressure piston (10-6) is set It is internal in pressure piston housing (10-7), it is located at the lower section of pitching piston (10-1), pressure piston (10-6) is hollow cylinder, Its inner cavity is two sections formula shoulder hole structure, and inner cavity upper section aperture is greater than inner cavity lower section aperture, on the side wall of inner cavity upper section Drainage hole is set, is set with pressure piston limit sleeve (10-9) in the outside on the top pressure piston (10-6), pressure piston (10-6) It is connect by upper positioning pin (10-8) with pressure piston limit sleeve (10-9), is equipped with suspension joint in the pressure piston lower part (10-6) (10-12), suspension gasket (10-13), shearing sliding sleeve (10-14), guide sleeve (10-16) and reducer union (10-17), pressure are living Plug (10-6) is connect by lower positioning pin (10-15) with shearing sliding sleeve (10-14)；The pressure release set (10-11) is connected to pressure Between piston jacket (10-7) and guide sleeve (10-16), connection inner tube assembly and outer tube are equipped on pressure release set (10-11) side wall The relief hole of flow channels between assembly, in troublesome zone drillings corings such as loose, broken, cementing properties is poor, weak, easy erosions When, steel ball (10-5) falls to the inner cavity stepped hole variable diameter position pressure piston (10-6) and the closure of drilling fluid flow channels builds the pressure, Pressure piston (10-6) moves down under drilling liquid pressure effect, and upper positioning pin (10-8) is sheared, pressure piston (10-6) Lower drilling tool is pushed to generate differential displacement.

4. rope salvaging type pitching according to claim 3, which builds the pressure, forces core drill, characterized in that described to play locking position Mechanism (8) uses more piece hinge bullet card structure, and recovery tube (8-1) is arranged in bullet card positioning mechanism, plays card holder (8-3), pull back Plate (8-5) plays clamp (8-6), plays deck (8-7), middle hinge (8-8) and lower hinge (8-9)；The recovery tube (8-1) is upper and lower Both ends are notified with fishing spearhead component (7), in place mechanism (9) assembly respectively, with shooting card holder (8-3) in the recovery tube (8-1), and Pin shaft is fixedly mounted in the recovery tube upper and lower part (8-1)；It is described play card holder (8-3) be equipped with the long hole that cooperates with pin shaft and with bullet The elongated slot of clamp cooperation；Bullet clamp (8-6) includes the hinged caliper of left and right two, articulated shaft and bullet deck (8-7) assembly, the caliper of left and right two pass through elongated slot on bullet card holder (8-3) and are installed on bullet card room (2) inner wall of outer pipe assembly, Two equal hinge mounteds in caliper upper end are pulled back plate (8-5), two plates of pulling back (8-5) also be fixed on the top recovery tube (8-1) Pin shaft hinge mounted is together；The bullet deck (8-7) and middle hinge (8-8) hinge mounted；The middle hinge (8-8) and lower hinge Chain (8-9) hinge mounted；The lower hinge lower end (8-9) and bullet card holder (8-3) hinge mounted, and set on lower hinge (8-9) Set and be mounted on the locking escape groove of recovery tube (8-1) bottom bearing pin cooperation.

5. rope salvaging type pitching according to claim 4, which builds the pressure, forces core drill, characterized in that locking in the bullet It is additionally provided with reset spring (8-4) and spring bearer plate (8-2) in position mechanism (8), and annular boss is set on playing card holder (8-3)； The spring bearer plate (8-2), which is fixed on, plays the upper end card holder (8-3)；The reset spring (8-4), which is sleeved on, plays card holder (8-3) outside Face is located between spring bearer plate (8-2) and the annular boss of bullet card holder (8-3), is assembled in a manner of precommpression, is passed through and is resetted bullet Spring (8-4) limits the relative position for playing card holder (8-3) and recovery tube (8-1) top bearing pin, bottom bearing pin.

6. rope salvaging type pitching according to claim 5, which builds the pressure, forces core drill, characterized in that the stifled heart alarm Mechanism (11) be equipped with divide water jacket (11-1), drainage joint (11-2), stifled heart alarm gasket (11-3), outer suspension joint (11-5), Interior suspension joint (11-6) adjusts connector (11-7), mandrel (11-8) and nut (11-9)；The drainage joint (11-2) and strong Reducer union (10-17) in heart differential attachment (10) is produced to be threadedly coupled, it is described that the water jacket upper end (11-1) is divided to be disk-like structure, point Water jacket (11-1) is assembled by disk-like structure and drainage joint (11-2), and interior suspension joint is set in dividing the inner cavity water jacket (11-1) Outer suspension joint (11-5), the outer suspension joint (11-5) and interior suspension is arranged dividing in (11-6) below water jacket (11-1) Connector (11-6) is equipped, forms cyclic annular bore dividing between water jacket (11-1), outer suspension joint (11-5) and drainage joint (11-2) Well liquid flow channels, and the drainage hole being staggeredly arranged up and down is equipped on dividing water jacket (11-1) and drainage joint (11-2) side wall, The mandrel (11-8) is by external screw thread and adjusts connector (11-7) screw-internal thread fit, and loading nut is covered outside mandrel (11-8) (11-9), characterized in that stifled heart alarm gasket (11-3) be mounted on a point water jacket (11-1) and outer suspension joint (11-5) it Between, after rock core is full of inner tube, by mandrel (11-8), connector (11-7) and outer suspension joint (11-5) are adjusted by rock core pressure It is transferred to stifled heart alarm gasket (11-3), stifled heart alarm gasket (11-3) is radially expanded, water jacket (11-1), outer suspension will divided The cyclic annular drilling fluid flow channels formed between connector (11-5) and drainage joint (11-2) block, and are increased by drilling liquid pressure Prompt alarm.

7. rope salvaging type pitching according to claim 6, which builds the pressure, forces core drill, characterized in that the stifled heart alarm Stifled heart alarm gasket (11-3) of mechanism (11) is arranged two groups, and two groups of stifled heart alarms gasket (11-3) pass through separate spacers (11-4) Isolation.