CN109000012B - Liquid channel starting mechanism of coring drilling machine - Google Patents
Liquid channel starting mechanism of coring drilling machine Download PDFInfo
- Publication number
- CN109000012B CN109000012B CN201810917821.XA CN201810917821A CN109000012B CN 109000012 B CN109000012 B CN 109000012B CN 201810917821 A CN201810917821 A CN 201810917821A CN 109000012 B CN109000012 B CN 109000012B
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- lock body
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- 239000007788 liquid Substances 0.000 title claims abstract description 47
- 230000007246 mechanism Effects 0.000 title claims abstract description 19
- 238000005553 drilling Methods 0.000 title abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 40
- 241001136800 Anas acuta Species 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 claims description 10
- 238000010008 shearing Methods 0.000 claims description 10
- 239000011435 rock Substances 0.000 description 9
- 238000011161 development Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/40—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
- F16K17/403—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint with a fracturing valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/40—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
- F16K17/406—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint the fracturing member being a generally elongated member, e.g. rod or wire, which is directly connected to a movable valve member, the breaking or buckling of the elongated member allowing the valve member to move to a closed or open position
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a liquid channel starting mechanism of a core drilling machine, which comprises a lock body, a locking rod, a shear pin and a central rod, wherein the lock body sequentially comprises a locking section, a sealing section and a liquid channel section from back to front, the side wall of the locking section is provided with a shear pin hole, the locking rod is arranged in the lock body, the locking rod sequentially comprises a connecting section, an outflow section, a sealing section and an inflow section from back to front, the outer wall of the connecting section is provided with a groove, the shear pin is arranged in the shear pin hole and the groove, the side wall of the outflow section is provided with an outflow hole, the side wall of the inflow section is provided with an inflow hole, the central rod is arranged in the locking rod, the inner cavity of the liquid channel section is communicated with the inner cavity of the inflow section through the inflow hole, the shear pin penetrates through the shear pin hole to be embedded in the groove before starting, the outer wall of the outflow hole is opened and is closed, after starting, the locking rod moves forward, the shear pin is sheared, the shear pin head is arranged in the shear pin hole, the shear pin tail is arranged in the groove, the inner cavity of the outflow section is communicated with the inner cavity of the liquid channel section through the outflow hole. The liquid channel starting mechanism of the core drilling machine provided by the invention blocks the liquid channel before starting and provides hydraulic pressure for the working parts after starting.
Description
Technical Field
The invention relates to a drilling coring system, in particular to a liquid channel starting mechanism of a coring drilling machine.
Background
In the process of oil field exploration, a rock core is important data for finding an oil-gas layer, researching stratum, oil producing layer, oil storage layer, cover layer, structure and the like, and the lithology, physical property, oil content, gas content and aquatic characteristic of the underground rock stratum can be directly known through observation and research on the rock core. After the oil field is put into development, the deposition characteristics of the oil layer are further researched and known through the rock core, and the physical properties, pore structure, wettability, relative permeability and lithofacies characteristics of the oil layer are further researched, and the physical simulation and flooding rules of the oil layer are realized; the oil layer flooding characteristics of different development stages and different water-containing stages are recognized and mastered, the distribution of residual oil is cleared, and scientific basis is provided for the design of oil field development schemes, the adjustment of layers and well patterns and the encryption of wells.
The core taking is to take underground rock to the ground by using a special coring tool in the drilling process, and the agglomerated rock is called a core, so that various properties of the rock can be measured, the underground structure and the rock deposition environment can be intuitively studied, and the fluid properties and the like can be known. In mineral exploration and development, the stratum horizon and depth are needed to be designed according to geology, drilling work is carried out, a coring tool is put into the well, and a rock sample is taken out.
The underground temperature is high, the electrical equipment cannot be used, hydraulic equipment is often used, a liquid flow channel is required to be blocked before the hydraulic equipment is started, the liquid flow channel is smooth after the hydraulic equipment is started, hydraulic pressure is provided for working parts, a hydraulic motor is driven, and a drill bit of a drilling machine is cooled.
Disclosure of Invention
The invention aims to provide a liquid channel starting mechanism of a core drilling machine, which is used for blocking a liquid channel before starting and providing hydraulic pressure for a working part after starting.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the invention discloses a liquid channel starting mechanism of a core drilling machine, which comprises a lock body, a locking rod, a shear pin and a center rod, wherein the lock body is communicated from front to back, the lock body is sequentially provided with a locking section, a sealing section and a liquid channel section from back to front, the side wall of the locking section is provided with a shear pin hole, the shear pin hole is a through hole, the locking rod is communicated from front to back, the locking rod is arranged in the lock body, the locking rod is sequentially provided with a connecting section, an outflow section, a sealing section and an inflow section from back to front, the outer wall of the connecting section is provided with a groove, the length of the shear pin is greater than the depth of the shear pin hole on the side wall of the lock body, the shear pin is arranged in the shear pin hole and the groove, the side wall of the outflow section is provided with an outflow hole, the side wall of the inflow section is provided with an inflow hole, the center rod is arranged in the locking rod, the inner diameter of the sealing section is equal to the outer diameter of the sealing section, the inner diameter of the liquid channel section is greater than the outer diameter of the locking rod, the inner diameters of the connecting section, the inner diameters of the outflow section and the inflow section are greater than the outer diameter of the center rod, the inner diameter of the sealing section is equal to the outer diameter of the sealing section, the axial distance from the front end of the sealing section to the rear end to the inner cavity is smaller than the axial distance of the inner cavity of the front end of the lock body, the inner cavity is smaller than the axial distance from the axial distance of the front end to the rear end of the inner cavity of the shear pin is inserted into the inner cavity through the axial channel.
Further, the inner diameter of the locking section is larger than the inner diameter of the sealing section, a protruding part is arranged on the outer wall of the connecting section, the outer diameter of the protruding part is larger than the inner diameter of the sealing section, the outer diameter of the front part of the protruding part of the connecting section is equal to the inner diameter of the sealing section, and the groove is formed in the protruding part.
Further, the outflow holes incline from inside to outside.
Further, the plurality of outflow holes are distributed uniformly along the radial circumference.
Further, the inflow holes are multiple, and the inflow holes are distributed in front and back on different sides.
Further, the connecting section is in threaded connection with the outflow section, and the sealing section and the inflow section are welded.
Further, the lock further comprises a lock nut, the lock nut is arranged at the rear of the lock body, the lock nut is communicated from front to back, the center rod penetrates through the inner cavity of the lock nut, the front end of the lock nut is in threaded connection with the rear end of the lock body, the shear pin hole is formed in the threaded position of the rear end of the lock body, and the radial distance from the inner wall of the lock nut to the bottom of the groove is not smaller than the length of the shear pin.
Further, the lock nut comprises a fixed section and a threaded section, the rear outer diameter of the protruding part of the connecting section is smaller than the outer diameter of the protruding part, the inner diameter of the threaded section is equal to the outer diameter of the locking section.
Further, the pin shearing head comprises a big head and a small head, the big head is outwards arranged, the outer diameter of the big head is larger than that of the small head, the pin shearing hole comprises an outer section and an inner section, the aperture of the outer section is not smaller than that of the big head of the pin shearing head, the aperture of the inner section is not smaller than that of the small head of the pin shearing head, the aperture of the inner section is smaller than that of the big head, the depth of the outer section is not smaller than the length of the big head, and the sum of the lengths of the small head and the tail of the pin shearing is larger than the depth of the inner section.
Further, the lock nut is axially provided with a locking hole A, the locking hole A is a shear pin hole, the rear end face of the lock body is provided with a locking hole B, the locking hole B is a blind hole, the locking hole A and the locking hole B are matched, the lock nut further comprises a fixing screw, the length of the fixing screw is greater than the depth of the locking hole A, the fixing screw is arranged in the locking hole A, and the front end of the fixing screw penetrates through the locking hole A to be embedded into the locking hole B.
The invention has the following beneficial effects:
1. before starting, the shear pin fixes the locking rod, the outflow hole is sealed in the sealing section, the opening of the outer wall of the outflow hole is sealed, liquid cannot flow out, when the hydraulic pressure provided by the rear slurry pump reaches a starting value, the shear pin is broken, the locking rod moves forward, the liquid flows through the outer wall of the central rod, the inner wall of the connecting section and the liquid flow channel formed by the inner wall of the liquid outlet section, enters the liquid flow channel formed by the inner wall of the liquid flow channel section and the outer wall of the inflow section through the outflow hole, and the liquid flow channel formed by the outer wall of the central rod and the inner wall of the inflow section through the inflow hole is communicated with a front hydraulic motor and a drill bit, and the hydraulic motor is started to cool the drill bit;
2. the outer diameter of the protruding part is larger than the inner diameter of the sealing section, and the distance for the locking rod to move forwards is limited, so that the locking rod does not move forwards after reaching the working position;
3. the locking nut is arranged and is in threaded connection with the lock body, and the connecting section is in threaded connection with the outflow section, so that the shear pin can be conveniently installed and replaced;
4. the locking hole A, the locking hole B and the fixing screw are matched to limit circumferential rotation;
5. the pin head comprises a big head and a small head, and the pin hole comprises an outer section and an inner section, which can limit the pin to move inwards in radial direction.
Drawings
FIG. 1 is a schematic diagram of the present invention prior to start-up;
FIG. 2 is a schematic view of the present invention after start-up;
in the figure: 1-center rod, 2-locking rod, 21-connecting section, 211-boss, 212-groove, 22-outflow section, 221-outflow hole, 23-closing section, 24-inflow section, 241-inflow hole, 3-lock body, 31-locking section, 32-sealing section, 33-liquid channel section, 4-lock nut, 5-shear pin, 51-shear pin head, 52-shear pin tail, 6-set screw, 71-outflow section cavity, 72-liquid channel section cavity, 73-inflow section cavity.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present invention more apparent.
As shown in fig. 1 and 2, the liquid channel starting mechanism of the coring drilling machine disclosed by the invention comprises a lock body 3, wherein the lock body 3 is communicated from front to back, the lock body 3 is sequentially provided with a locking section 31, a sealing section 32 and a liquid channel section 33 from back to front, the side wall of the locking section 31 is provided with a shear pin hole, the shear pin hole is a through hole, the liquid channel starting mechanism further comprises a locking rod 2, the locking rod 2 is communicated from front to back, the locking rod 2 is arranged in the lock body 3, the locking rod 2 is sequentially provided with a connecting section 21, an outflow section 22, a closing section 23 and an inflow section 24 from back to front, the connecting section 21 is in threaded connection with the outflow section 22, the closing section 23 and the inflow section 23 are welded, the outer wall of the connecting section 21 is provided with a groove 212, the groove 212 is an annular groove, the liquid channel core drilling machine further comprises a shear pin 5, the length of the shear pin 5 is greater than the depth of the shear pin hole, the shear pin 5 is arranged in the shear pin hole and the groove 212, the side wall of the outflow section 22 is provided with outflow holes 221, the outflow holes 221 are inclined from inside to outside, the plurality of outflow holes 221 are uniformly distributed along the radial circumference, the side wall of the inflow section 24 is provided with inflow holes 241, the inflow holes 241 are provided with a plurality of inflow holes 241, the inflow holes 241 are distributed back and forth on different sides of the inflow section 24, the device further comprises a center rod 1, the center rod 1 is arranged in the locking rod 2, the inner diameter of the sealing section 32 is equal to the outer diameter of the closing section 23 and is equal to the outer diameter of the outflow section 22, the inner diameter of the liquid channel section 33 is larger than the outer diameter of the locking rod 2, the inner diameters of the connecting section 21, the outflow section 22 and the inflow section 24 are larger than the outer diameter of the center rod 1, the inner diameter of the closing section 23 is equal to the outer diameter of the center rod 1, the axial distance from the front end of the sealing section 32 to the rear end of the lock body 3 is smaller than the axial distance from the front end of the closing section 23 to the rear end of the lock body 3, the inner wall of the liquid channel section 33 and the outer wall of the inflow section 24 enclose a liquid channel 3872, the inner wall of the inflow section 24 encloses an inflow section inner cavity 73 with the outer wall of the center rod 1, the outer wall of the center rod 1 encloses an outflow section inner cavity 71, the outer wall of the center rod 1 encloses the inner wall of the center rod 1, the inner wall of the sealing section 22 and the inner wall of the sealing section 21, the inner cavity 72 of the liquid channel section is communicated with the inner cavity 73 of the inflow section through an inflow hole 241, the inner diameter of the locking section 31 is larger than the inner diameter of the sealing section 32, a protruding part 211 is arranged on the outer wall of the connecting section 21, the outer diameter of the protruding part 211 is larger than the inner diameter of the sealing section 32, the outer diameter of the protruding part 211 of the connecting section 21 is equal to the inner diameter of the sealing section 32, a groove 212 is formed in the protruding part 211, the liquid channel section further comprises a locking nut 4, the locking nut 4 is arranged behind the lock body 3, the locking nut 4 is penetrated back and forth, the central rod 1 penetrates through the inner cavity of the locking nut 4, the front end of the locking nut 4 is in threaded connection with the rear end of the lock body 3, the shear pin hole is opened at the thread of the rear end of the lock body 3, the radial distance from the inner wall of the locking nut 4 to the bottom of the groove 212 is not smaller than the length of the shear pin 5, the locking nut 4 comprises a fixed section and a thread section, the outer diameter of the protruding part 211 is smaller than the outer diameter of the protruding part 211, the thread section is equal to the outer diameter of the locking section 31, the locking nut 4 is axially opened with a locking hole A, the locking hole A is arranged on the locking hole B is arranged on the rear end face of the lock body 3, the locking hole B is a blind hole is matched with the locking hole B, the locking hole 6 is a bolt, the bolt and the bolt 6 is embedded in the depth A and the bolt 6A is inserted into the bolt 6A and the depth A is 6B.
Before starting, the shear pin 5 penetrates through the shear pin hole embedded groove 212, the axial distance from the outer wall opening of the outflow hole 221 to the rear end of the lock body 3 is smaller than the axial distance from the rear end of the liquid channel section 33 to the rear end of the lock body 3, the outer wall opening of the outflow hole 221 is closed by the sealing section 32, liquid cannot flow forwards, after the hydraulic pressure provided by the rear slurry pump reaches a starting value, the rear end of the locking rod 2 is impacted, the shear pin 5 is broken into the shear pin head 51 and the shear pin tail 52, the shear pin head 51 is arranged in the shear pin hole, the shear pin tail 52 is arranged in the groove 212, the locking rod 2 moves forwards, the axial distance from the outer wall opening of the outflow hole 221 to the rear end of the lock body 3 is larger than the axial distance from the rear end of the liquid channel section 33 to the rear end of the lock body 3, the inner cavity 71 of the outflow section is communicated with the inner cavity 72 of the liquid channel section through the outflow hole 221, the liquid channel is communicated, and the liquid enters the liquid flow channel to the liquid flow to drive the hydraulic motor and the cooling drill bit in front.
The pin shearing head 51 includes a large head and a small head, the large head is outward larger than the small head in outer diameter, the pin shearing hole includes an outer section and an inner section, the outer section aperture is not smaller than the large head in outer diameter, the inner section aperture is not smaller than the small head in outer diameter, the inner section aperture is smaller than the large head in outer diameter, the outer section depth is not smaller than the large head in length, and the sum of the small head and the pin shearing tail 52 is larger than the inner section depth.
The external diameter of the protruding part 211 of the connecting section 21 is 56mm, the internal diameter is 36mm, the total length is 106mm, the external diameters of the front part and the rear part of the protruding part 211 of the connecting section 21 are 50mm, the depth of the groove 212 is 6mm, the rear end of the protruding part 211 is 15mm away from the rear end of the connecting section 21, the front end of the groove 212 is 27.8mm away from the rear end of the connecting section, the width of the groove 212 is 5.5mm, the front end of the groove 212 is 73mm away from the front end of the connecting section 21, a through hole with the aperture of 8mm is further formed in the side wall of the connecting section 21, the through hole is 65mm away from the front end of the connecting section 21, the external diameter of the screw thread of the front end of the connecting section 21 is 43mm, the screw thread is M45×1.5mm, and the screw thread connection length of the connecting section 21 and the outflow section 22 is 39mm.
The outer diameters of the outflow section 22 and the closed section 23 are 50mm, the inner diameter of the outflow section 22 is 36mm, the aperture of the outflow hole 221 is 8mm, the included angle between the outflow hole 221 and the axial direction is 45 degrees, the front end of the outer wall opening of the outflow hole 221 is 152mm away from the rear end of the outflow section 22, 6 outflow holes 221 are formed, the total length of the outflow section 22 and the closed section 23 is 196mm, the inner diameter of the closed section 23 is 25mm, the aperture of the inflow hole 241 is 16mm, 4 inflow holes 241 are formed on 4 sides respectively, the distances between the centers of the 4 inflow holes 241 and the rear end of the inflow section 24 are 39mm, 55mm, 71mm and 87mm respectively, the inner diameter of the inflow section 24 is 40.5mm, the outer diameter of the inflow section 24 is 44.5mm, and the outer diameter of the center rod 1 is 25mm.
The outer diameter of the locking section 31 is 82mm, the inner diameter is 56mm, the distance between the hole center of the shear pin hole and the rear end of the locking section 31 is 8mm, the length of the locking section 31 is 56mm, the aperture of the outer section of the shear pin hole is 8mm, the depth is 5mm, the inner Duan Kongjing is 5mm, the depth is 8mm, the outer diameter of the sealing section 32 is 99.6mm, the inner diameter is 50mm, the length of the sealing section 32 is 176mm, and the inner diameter of the liquid channel section 33 is 70mm.
The total length of the shear pin 5 is 16.5mm, the length of the big end of the shear pin head 51 is 3.5mm, the outer diameter is 7mm, the outer diameter of the small end of the shear pin head 51 is 4.8mm, and the sum of the lengths of the small end of the shear pin head 51 and the shear pin tail 52 is 13mm.
Of course, the present invention is capable of other various embodiments and its several details are capable of modification and variation in light of the present invention by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The utility model provides a coring bit liquid way actuating mechanism which characterized in that: comprises a lock body (3), a locking rod (2), a shear pin (5) and a center rod (1), wherein the lock body (3) is communicated from front to back, the lock body (3) is sequentially provided with a locking section (31), a sealing section (32) and a liquid channel section (33) from back to front, the side wall of the locking section (31) is provided with a shear pin hole, the shear pin hole is a through hole, the locking rod (2) is communicated from front to back, the locking rod (2) is arranged in the lock body (3), the locking rod (2) is sequentially provided with a connecting section (21), an outflow section (22), a sealing section (23) and an inflow section (24) from back to front, the outer wall of the connecting section (21) is provided with a groove (212), the length of the shear pin (5) is larger than the depth of the shear pin hole on the side wall of the lock body (3), the side wall of the outflow section (22) is provided with an outflow hole (221), the side wall of the inflow section (24) is provided with an inflow hole (241), the inner diameter of the locking rod (1) is arranged in the center rod (3), the inner diameter of the sealing section (32) is equal to the inner diameter of the sealing section (23) and the outer diameter of the inner diameter of the sealing section (24) is larger than the outer diameter of the connecting section (21) of the sealing section (24), the inner diameter of the sealing section (23) is equal to the outer diameter of the central rod (1), the axial distance from the front end of the sealing section (32) to the rear end of the lock body (3) is smaller than the axial distance from the front end of the sealing section (23) to the rear end of the lock body (3), the liquid channel Duan Naqiang (72) is communicated with the inner cavity (73) of the inflow section through the inflow hole (241), the shear pin (5) penetrates through the shear pin hole embedded groove (212), and the axial distance from the outer wall opening of the outflow hole (221) to the rear end of the lock body (3) is smaller than the axial distance from the rear end of the liquid channel section (33) to the rear end of the lock body (3).
2. The core drill bit fluid passage actuation mechanism of claim 1, wherein: the inner diameter of the locking section (31) is larger than that of the sealing section (32), the outer wall of the connecting section (21) is provided with a protruding part (211), the outer diameter of the protruding part (211) is larger than that of the sealing section (32), the outer diameter of the front part of the protruding part (211) of the connecting section (21) is equal to that of the sealing section (32), and the groove (212) is formed in the protruding part (211).
3. The core drill bit fluid passage actuation mechanism of claim 1, wherein: the outflow hole (221) is inclined from inside to outside.
4. The core drill bit fluid passage actuation mechanism of claim 1, wherein: the plurality of outflow holes (221) are arranged, and the plurality of outflow holes (221) are uniformly distributed along the radial circumference.
5. The core drill bit fluid passage actuation mechanism of claim 1, wherein: the inflow holes (241) are distributed in front and back on different sides.
6. The core drill bit fluid passage actuation mechanism of claim 1, wherein: the connecting section (21) is in threaded connection with the outflow section (22), and the sealing section (23) and the inflow section (24) are welded.
7. The core drill bit fluid passage actuation mechanism of claim 2, wherein: the novel lock comprises a lock body (3), and is characterized by further comprising a lock nut (4), wherein the lock nut (4) is arranged behind the lock body (3), the lock nut (4) is communicated back and forth, a central rod (1) penetrates through the inner cavity of the lock nut (4), the front end of the lock nut (4) is in threaded connection with the rear end of the lock body (3), a shearing pin hole is formed in the threaded position of the rear end of the lock body (3), and the radial distance from the inner wall of the lock nut (4) to the bottom of a groove (212) is not less than the length of a shearing pin (5).
8. The core drill bit fluid passage actuation mechanism of claim 7, wherein: the lock nut (4) comprises a fixed section and a threaded section, the rear outer diameter of the protruding part (211) of the connecting section (21) is smaller than the inner diameter of the fixed section and smaller than the outer diameter of the protruding part (211), and the inner diameter of the threaded section is equal to the outer diameter of the locking section (31).
9. The core drill bit fluid passage actuation mechanism of claim 1, wherein: after starting, the locking rod (2) moves forwards, the shear pin (5) shears, the shear pin head (51) is arranged in the shear pin hole, the shear pin tail (52) is arranged in the groove (212), the shear pin head (51) comprises a big head and a small head, the big head is outwards, the outer diameter of the big head is larger than that of the small head, the shear pin hole comprises an outer section and an inner section, the aperture of the outer section is not smaller than that of the shear pin head (51), the aperture of the inner section is not smaller than that of the small head of the shear pin head (51), the aperture of the inner section is smaller than that of the big head, the depth of the outer section is not smaller than the length of the big head, and the sum of the lengths of the small head and the shear pin tail (52) is larger than the depth of the inner section.
10. The core drill bit fluid passage actuation mechanism of claim 7, wherein: the locking nut (4) is axially provided with a locking hole A, the locking hole A is a shear pin hole, the rear end face of the lock body (3) is provided with a locking hole B, the locking hole B is a blind hole, the locking hole A and the locking hole B are matched, the locking nut further comprises a fixing screw (6), the length of the fixing screw (6) is greater than the depth of the locking hole A, the fixing screw (6) is arranged in the locking hole A, and the front end of the fixing screw (6) penetrates through the locking hole A to be embedded into the locking hole B.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810917821.XA CN109000012B (en) | 2018-08-13 | 2018-08-13 | Liquid channel starting mechanism of coring drilling machine |
| PCT/CN2018/109034 WO2020034364A1 (en) | 2018-08-13 | 2018-09-30 | Core drilling rig liquid channel starting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810917821.XA CN109000012B (en) | 2018-08-13 | 2018-08-13 | Liquid channel starting mechanism of coring drilling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109000012A CN109000012A (en) | 2018-12-14 |
| CN109000012B true CN109000012B (en) | 2023-10-24 |
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ID=64595941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810917821.XA Active CN109000012B (en) | 2018-08-13 | 2018-08-13 | Liquid channel starting mechanism of coring drilling machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109000012B (en) |
| WO (1) | WO2020034364A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973035B (en) * | 2018-12-26 | 2024-04-12 | 深圳大学 | Rock sample fidelity core taking system |
| CN111322025B (en) * | 2020-02-22 | 2024-05-17 | 深圳大学 | Moon is from tunnelling coring robot device and system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2163865Y (en) * | 1993-07-14 | 1994-05-04 | 辽河石油勘探局钻井一公司 | Locking and sealing device for closed core-extractor |
| RU2198996C2 (en) * | 2001-02-06 | 2003-02-20 | Дочернее общество с ограниченной ответственностью "Буровая компания открытого акционерного общества "ГАЗПРОМ" | Core barrel |
| CN101695688A (en) * | 2009-09-30 | 2010-04-21 | 无锡威孚力达催化净化器有限责任公司 | Liquid swirl nozzle |
| CN201581831U (en) * | 2009-12-28 | 2010-09-15 | 连云港黄海机械厂有限公司 | Anti-loosening device for hydraulic chuck of full-hydraulic core drilling machine |
| CN202520261U (en) * | 2011-09-16 | 2012-11-07 | 禹畅 | Cut-to-length core drill |
| CN102996090A (en) * | 2011-09-16 | 2013-03-27 | 禹畅 | Sizing intercepting rock core drilling tool |
| CN205135400U (en) * | 2015-10-29 | 2016-04-06 | 中国石油大学(北京) | Impacter but prospecting borehole recovery type high frequency surges |
| CN107514240A (en) * | 2017-10-13 | 2017-12-26 | 四川大学 | A kind of high stability pressurize coring device automatically controlled |
| CN108386146A (en) * | 2018-04-27 | 2018-08-10 | 中国石油大学(北京) | Deepwater drilling casing head and annular space sealing device tripping in tool and its application method |
| CN208967146U (en) * | 2018-08-13 | 2019-06-11 | 四川大学 | Core drilling rig fluid passage actuating mechanism |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003038232A1 (en) * | 2001-11-02 | 2003-05-08 | Industrial Innovations And Concepts Pty Ltd | Orientation device for a core sample |
| CN201779318U (en) * | 2010-08-07 | 2011-03-30 | 大庆石油管理局 | Hydraulic balancing seal valve |
| CN203161146U (en) * | 2012-12-27 | 2013-08-28 | 中国石油集团川庆钻探工程有限公司 | Coring system for coring while drilling |
| CN204311998U (en) * | 2014-08-27 | 2015-05-06 | 四川川庆石油钻采科技有限公司 | One is surged pressurized coring tool |
| CN204386546U (en) * | 2014-12-10 | 2015-06-10 | 宝鸡瑞通石油装备有限公司 | Novel current global mechanism area sliding sleeve switch |
-
2018
- 2018-08-13 CN CN201810917821.XA patent/CN109000012B/en active Active
- 2018-09-30 WO PCT/CN2018/109034 patent/WO2020034364A1/en active Application Filing
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2163865Y (en) * | 1993-07-14 | 1994-05-04 | 辽河石油勘探局钻井一公司 | Locking and sealing device for closed core-extractor |
| RU2198996C2 (en) * | 2001-02-06 | 2003-02-20 | Дочернее общество с ограниченной ответственностью "Буровая компания открытого акционерного общества "ГАЗПРОМ" | Core barrel |
| CN101695688A (en) * | 2009-09-30 | 2010-04-21 | 无锡威孚力达催化净化器有限责任公司 | Liquid swirl nozzle |
| CN201581831U (en) * | 2009-12-28 | 2010-09-15 | 连云港黄海机械厂有限公司 | Anti-loosening device for hydraulic chuck of full-hydraulic core drilling machine |
| CN202520261U (en) * | 2011-09-16 | 2012-11-07 | 禹畅 | Cut-to-length core drill |
| CN102996090A (en) * | 2011-09-16 | 2013-03-27 | 禹畅 | Sizing intercepting rock core drilling tool |
| CN205135400U (en) * | 2015-10-29 | 2016-04-06 | 中国石油大学(北京) | Impacter but prospecting borehole recovery type high frequency surges |
| CN107514240A (en) * | 2017-10-13 | 2017-12-26 | 四川大学 | A kind of high stability pressurize coring device automatically controlled |
| CN108386146A (en) * | 2018-04-27 | 2018-08-10 | 中国石油大学(北京) | Deepwater drilling casing head and annular space sealing device tripping in tool and its application method |
| CN208967146U (en) * | 2018-08-13 | 2019-06-11 | 四川大学 | Core drilling rig fluid passage actuating mechanism |
Non-Patent Citations (1)
| Title |
|---|
| 取心钻进技术在穿层钻孔施工中的应用研究;李振;欧立懂;李祥发;张业明;朱建安;;中州煤炭(第08期);全文 * |
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| WO2020034364A1 (en) | 2020-02-20 |
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