CN211648053U - Rope coring drilling tool suitable for large-caliber geological drilling - Google Patents
Rope coring drilling tool suitable for large-caliber geological drilling Download PDFInfo
- Publication number
- CN211648053U CN211648053U CN202020243488.1U CN202020243488U CN211648053U CN 211648053 U CN211648053 U CN 211648053U CN 202020243488 U CN202020243488 U CN 202020243488U CN 211648053 U CN211648053 U CN 211648053U
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- clamping jaw
- hole
- lock pin
- joint
- spring
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- 238000005553 drilling Methods 0.000 title claims abstract description 48
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 210000004907 gland Anatomy 0.000 claims abstract description 13
- 239000000725 suspension Substances 0.000 claims abstract description 12
- 239000004429 Calibre Substances 0.000 claims abstract description 4
- 210000000078 claw Anatomy 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000000670 limiting effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 5
- 210000001503 joint Anatomy 0.000 abstract 1
- 241001449342 Chlorocrambe hastata Species 0.000 description 6
- 239000011111 cardboard Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000002498 deadly effect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a rope core drill suitable for large-caliber geological drilling, which comprises an elastic clamp positioning mechanism and a fishing device, wherein the fishing device comprises a joint, a lifting head and a catching mechanism; the lifting head is hinged with the upper part of the joint through a cylindrical pin, and the lower part of the joint is connected with the catching mechanism; the elastic clamp positioning mechanism comprises a clamping jaw, a pressing cover, a clamping jaw spring, a pressing sleeve, an elastic cylindrical pin, a pressing sleeve spring, a suspension ring, a clamping jaw support, a lower joint, a positioning pin shaft, a lock pin pressing cover, a lock pin spring and a round rod; the jack catch passes through elasticity cylindric lock and jack catch leg joint, and the upper end of jack catch support is provided with the gland, and the lower extreme and the lower clutch of jack catch support are connected, are provided with between jack catch support and the lower clutch and hang the ring. The utility model discloses simple structure, convenient operation can improve the reliability that the inner tube assembly salvaged and promoted the process, avoids delivering the excessive wearing and tearing of in-process jack catch simultaneously to satisfy the demand of heavy-calibre geological drilling operation.
Description
Technical Field
The utility model relates to a rope coring drilling tool suitable for heavy-calibre geological drilling.
Background
With the development of super engineering construction such as Sichuan-Tibet railways, deep space laboratories, deep-buried national defense projects and the like in China and emergency rescue from drilling to mines, the extension of the field of ocean foundation engineering construction and the wider application range of large-caliber engineering geological drilling are achieved. The wire line coring drilling technology has the advantages of high drilling efficiency, small disturbance degree to a sample and the like, and is widely applied to the field of small-caliber geological exploration. However, the following differences exist between large-caliber engineering exploration and small-caliber geological exploration: conventional geological exploration typically has borehole diameters between 75mm and 150mm, while large bore engineering exploration boreholes typically have borehole diameters between 300mm and 600 mm. The increase in borehole diameter increases the number of core samples drilled, and also significantly increases the overall weight of the drill (the sum of the weight of the drill itself and the weight of the obtained core samples). The spearhead structure of the conventional geological exploration drilling tool is a stress concentration point in the process of salvaging and lifting. As the overall quality of the drill increases, the risk of spearhead strength failure increases and the chances of potential drilling accidents increase. When the conventional rope drilling tool is put in, the elastic clamping plate of the conventional rope drilling tool is propped against the inner surface of the drill rod to slide downwards under the action of the spring force, so that the abnormal abrasion phenomenon of the elastic clamping plate is serious in the putting process, and the conventional rope drilling tool is particularly prominent in deep hole drilling operation. The tension of the elastic card is derived from the spring force, and in order to improve the positioning reliability, the rigidity of the spring is generally required to be improved, which also means that the abrasion degree of the elastic card board in the throwing process is increased. In addition, in a conventional wire line core drill used in fishing operations, a jack plate interlocked with a draw-in sleeve connected to a spearhead is retracted by moving the draw-in sleeve in an axial direction for a certain distance. The card receiving mode requires that enough movement clearance must be provided between the bullet card board and the bullet card stopper in the outer pipe assembly, and the bullet card board and the bullet card stopper are easy to be deadly jacked when drilling in a broken complex stratum, so that the card cannot be successfully received, and the risk of a drill blocking accident is increased. At present, the rope core drilling tool for large-caliber engineering exploration mainly expands the structural size on the premise of continuing using the structural form of the conventional rope core drilling tool, does not fully exert the advantages of the rope core drilling technology, and reduces the working reliability and stability.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a simple structure, convenient operation, high, the good rope coring drilling tool that is applicable to heavy-calibre geological drilling of reliability water permeability.
The utility model adopts the technical proposal that: a rope coring drilling tool suitable for large-caliber geological drilling comprises an elastic clamp positioning mechanism and a fishing device, wherein the elastic clamp positioning mechanism comprises a plurality of clamping jaws, a pressing cover, a clamping jaw spring, a pressing sleeve, an elastic cylindrical pin, a pressing sleeve spring, a suspension ring, a clamping jaw support, a lower joint, a positioning pin shaft, a lock pin pressing cover, a lock pin spring and a round rod; the side wall of the jaw support is provided with a plurality of through holes, each through hole is hinged with a jaw, the positioning surface of each jaw extends into the jaw support from the through hole, a jaw spring is arranged between the middle part of each jaw and the jaw support, the upper end of each jaw support is provided with a gland, the lower part of each jaw support is provided with a suspension ring, and the lower end of each jaw support is connected with the lower connector; the lower part of the claw bracket is positioned in the lower joint; a pressing sleeve is arranged in an inner hole of the clamping jaw support, the upper part of the pressing sleeve is positioned in a central hole of the pressing cover, a flange is arranged at the middle part of the pressing sleeve and can be contacted with a positioning surface of the clamping jaw to realize the rotation of the clamping jaw, and a limiting surface for limiting the rotation angle of the clamping jaw is also arranged at the lower part of the clamping jaw; a pressing sleeve spring is arranged between the bottom surface of the flange and the claw support; a positioning pin shaft is arranged at the lower part of the central hole of the pressing sleeve; the side wall of the lower joint is provided with a through hole, the inner side wall of the lower joint is provided with a blind hole, and the through hole is coaxial with the blind hole; one end of the lock pin is arranged in the through hole, the other end of the lock pin is arranged in the blind hole, and a lock pin spring is arranged between the other end of the lock pin and the bottom of the blind hole; the outer end of the through hole is provided with threads which are in threaded connection with the lock pin gland; a through hole II is formed in the center of the lock pin gland, and the round rod penetrates through the through hole II to be connected with the lock pin; a through groove is formed in the middle of the lock pin, a reset block is arranged on the side wall, perpendicular to the central line of the spring, of the through groove, the lower portion of the positioning pin shaft penetrates through the through groove, a reset groove is formed in the lower portion of the positioning pin shaft, and the reset block can be embedded into the reset groove to limit the positioning pin shaft;
the fishing device comprises a joint, a lifting head and a catching mechanism; the lifting head is hinged with the upper part of the joint through a cylindrical pin, and the lower part of the joint is connected with the catching mechanism; the lower end of the catching mechanism can be meshed with the upper ends of the clamping jaws.
In the rope core drill suitable for large-caliber geological drilling, the flange in the middle of the pressing sleeve is conical with a large upper part and a small lower part.
In the rope coring drilling tool suitable for large-caliber geological drilling, the side face of the suspension ring is uniformly distributed with a plurality of water passing key grooves.
In the rope core drilling tool suitable for large-caliber geological drilling, the catching mechanism of the fishing device is of a bell jar type structure and can be meshed with the clamping jaw.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the total weight of the drilling tool is commonly born by the plurality of claws in the elastic clamp assembly when the fishing and lifting operation is carried out, so that the stress load of a single claw is reduced; compared with the spearhead structure form of the conventional drilling tool, the risk of spearhead strength failure caused by overlarge load can be avoided, and the reliability of fishing operation is improved.
2) The utility model discloses in-process jack catch at the input can keep the draw in state in, and it can automatic re-setting after putting into position, can avoid the jack catch excessive wear phenomenon to improve the operational reliability and the life of drilling tool when the deep hole creeps into.
3) The utility model discloses a jack catch has spearhead and bullet cardboard locate function of conventional drilling tool simultaneously concurrently, can enough cooperate the fisher to carry out the drilling tool and salvage, can play the positioning action again in order to satisfy the normal demand of creeping into, reduces the part quantity of drilling tool assembly, makes its simple structure, compactness, convenient operation.
4) The utility model discloses rely on the mechanism of arresting of fisher to force the jack catch to produce radial shrink when salvaging, compare in the form that conventional drilling tool relied on receipts cylinder axial displacement certain distance to realize bullet cardboard shrink, its shrink performance is reliable rapidly more, can avoid conventional drilling tool to cause the risk of unable normal salvaging owing to lose the play clearance of moving between bullet cardboard and the bullet card shelves head in the salvage process that broken complicated stratum creeps into. Furthermore, the utility model discloses increased waterway system's the cyclic annular area of water passing, the whole water permeability of drilling tool is good.
Drawings
Fig. 1 is a schematic sectional view of the elastic clip positioning mechanism of the present invention.
Fig. 2 is a schematic structural diagram of the elastic card positioning mechanism of the present invention.
Fig. 3 is a schematic view of the jaw structure of the present invention.
Fig. 4 is a schematic view of the structure of the locking pin of the present invention.
Fig. 5 is a schematic view of the structure of the positioning pin of the present invention.
Fig. 6 is a schematic view of the fishing state of the present invention.
Fig. 7 is a view showing the operation state of the present invention.
In the figure: 1-a claw; 2-pressing the cover; 3-a jaw spring; 4-pressing the sleeve; 5-elastic cylindrical pins; 6-pressing a sleeve spring; 7-a suspension ring; 8-jaw support; 9-lower joint; 10-positioning a pin shaft; 11-a locking pin; 12-a latch gland; 13-a detent spring; 14-round bar; 15-cylindrical pin; 16-a puller head; 17-a linker; 18-a catching mechanism; 19-an outer tube; 20-spring catch head; 21-a cartridge chamber; 22-a seat ring; 71-passing through a water key groove; 81-through holes; 82-passing through a water tank; 011-positioning surface; 012-a limiting surface; 101-a reset groove; 111-through slots; 112-reset block.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-7, the present invention comprises a latch positioning mechanism and a fishing device, wherein the fishing device comprises a joint 17, a lifting head 16 and a catching mechanism 18; the lifting head 16 is hinged with the upper part of the joint 17 through the cylindrical pin 15, and the lower part of the joint 17 is connected with a catching mechanism 18.
The elastic clamp positioning mechanism comprises a plurality of clamping jaws 1, a pressing cover 2, a clamping jaw spring 3, a pressing sleeve 4, an elastic cylindrical pin 5, a pressing sleeve spring 6, a suspension ring 7, a clamping jaw support 8, a lower joint 9, a positioning pin shaft 10, a lock pin 11, a lock pin pressing cover 12, a lock pin spring 13 and a round rod 14; evenly be equipped with a plurality of through-holes on the jack catch support 8, every through-hole department articulates through elasticity cylindric lock 5 has a jack catch 1, is equipped with jack catch spring 3 between 1 middle part of jack catch and the jack catch support 8, and in the locating surface 011 of jack catch 1 stretched into jack catch support 8 from the through-hole, the upper end of jack catch support 8 was equipped with gland 2, and the lower extreme and the lower clutch 9 of jack catch support 8 are connected. The catching mechanism 18 is of a bell-jar type structure and can be meshed with the clamping jaws 1.
The suspension ring 7 is arranged at the lower part of the jaw support 8, and a plurality of water passing key slots 71 are uniformly distributed on the side surface of the suspension ring 7; the lower part of the jaw support 8 is located in the lower joint 9. A pressing sleeve 4 is arranged in an inner hole of the jaw support 8, the upper part of the pressing sleeve 4 is positioned in a central hole of the gland 2, a conical flange is arranged in the middle of the pressing sleeve 4, the upper part of the flange is big, the lower part of the flange is small, the conical surface of the flange can be in contact with the positioning surface 011 of the jaw 1 to realize the rotation of the jaw 1, and a pressing sleeve spring 6 is arranged between the bottom surface of the flange and the jaw support 8; the lower part of the central hole of the pressing sleeve 4 is sleeved on the positioning pin shaft 5. A through hole is arranged on the side wall of the lower joint 9, a blind hole is arranged on the inner side wall of the lower joint 9, and the through hole and the blind hole are coaxially arranged; one end of the lock pin 11 is arranged in the through hole, the other end of the lock pin 11 is arranged in the blind hole, and a lock pin spring 13 is arranged between the other end of the lock pin 11 and the bottom of the blind hole; the outer end of the through hole is provided with threads which are in threaded connection with the lock pin gland 12, and the lock pin gland 12 is used for preventing the lock pin 11 from falling out of the through hole. A through hole II is formed in the center of the lock pin gland 12, and the round rod 14 penetrates through the through hole II to be connected with the lock pin 11; the middle of the lock pin 11 is provided with a through groove 111, the side wall of the through groove 111, which is perpendicular to the central line of the spring, is provided with a reset block 112, the lower part of the positioning pin shaft 10 penetrates through the through groove 111, the lower part of the positioning pin shaft 10 is provided with a reset groove 101, and the reset block 112 can be embedded into the reset groove 101 to limit the positioning pin shaft 10.
The utility model discloses a concrete application method as follows:
when the inner pipe assembly is put into operation, the pressing sleeve 4 is pressed downwards, the pressing sleeve 4 overcomes the spring force of the pressing sleeve spring 6 to move downwards to be in contact with the clamping jaw 1, and the clamping jaw 1 is forced to rotate around the elastic cylindrical pin 5. The positioning pin 10 and the pressure sleeve 4 move downwards together. When the reset groove 101 on the positioning pin shaft 10 corresponds to the reset block 112 of the lock pin 11, the lock pin 11 moves rightward along the radial direction under the action of the spring force of the lock pin spring 13, so that the reset block 112 is embedded into the reset groove 101, and the locking and limiting of the pressing sleeve 4 are realized. At the moment, the claw 1 is in a furled state under the limiting action of the pressing sleeve 4, the round rod 14 exceeds the outer surface of the suspension ring 7 by 1.5-2.0mm, and the preparation is finished before delivery.
The inner tube assembly is released and allowed to descend by its own weight. When the end face of the round rod 14 comes into contact with the seat ring 22 in the outer tube, the round rod 14 retracts in the radial direction and pushes the lock pin 11 to move leftward against the spring force of the lock pin spring 13. At this point, the reset block 112 in the locking pin 11 is removed from the reset groove 101 of the positioning pin 10. Under the spring force of the pressing sleeve spring 6, the positioning pin shaft 10 and the pressing sleeve 4 move upwards together, so that the pressing sleeve 4 releases the limit of the clamping jaw 1, the clamping jaw 1 opens and is clamped in an annular space formed by the elastic clamping stopper 20 and the elastic clamping chamber 21, and the drilling tool starts normal drilling operation.
After drilling, firstly putting the fisher device into the hole, sleeving the catching mechanism 18 on the top of the clamping jaw 1, forcing the clamping jaw 1 to contract radially and to be meshed with the catching mechanism 18, and then lifting the steel wire rope to realize fishing and lifting of the inner pipe assembly.
Claims (4)
1. The utility model provides a rope coring drilling tool suitable for heavy-calibre geological drilling, includes bullet card positioning mechanism and fishing device, characterized by: the elastic clamp positioning mechanism comprises a plurality of clamping jaws, a pressing cover, a clamping jaw spring, a pressing sleeve, an elastic cylindrical pin, a pressing sleeve spring, a suspension ring, a clamping jaw support, a lower joint, a positioning pin shaft, a lock pin pressing cover, a lock pin spring and a round rod; a plurality of through holes are formed in the side wall of the jaw support, each through hole is hinged with one jaw, and the positioning surface of each jaw extends into the jaw support from the through hole; a clamping jaw spring is arranged between the middle part of the clamping jaw and the clamping jaw support, a gland is arranged at the upper end of the clamping jaw support, a suspension ring is arranged at the lower part of the clamping jaw support, and the lower end of the clamping jaw support is connected with the lower connector; the lower part of the claw bracket is positioned in the lower joint; a pressing sleeve is arranged in an inner hole of the clamping jaw support, the upper part of the pressing sleeve is positioned in a central hole of the pressing cover, a flange is arranged at the middle part of the pressing sleeve and can be contacted with a positioning surface of the clamping jaw to realize the rotation of the clamping jaw, and a limiting surface for limiting the rotation angle of the clamping jaw is also arranged at the lower part of the clamping jaw; a pressing sleeve spring is arranged between the bottom surface of the flange and the claw support; a positioning pin shaft is arranged at the lower part of the central hole of the pressing sleeve; the side wall of the lower joint is provided with a through hole, the inner side wall of the lower joint is provided with a blind hole, and the through hole is coaxial with the blind hole; one end of the lock pin is arranged in the through hole, the other end of the lock pin is arranged in the blind hole, and a lock pin spring is arranged between the other end of the lock pin and the bottom of the blind hole; the outer end of the through hole is provided with threads which are in threaded connection with the lock pin gland; a through hole II is formed in the center of the lock pin gland, and the round rod penetrates through the through hole II to be connected with the lock pin; a through groove is formed in the middle of the lock pin, a reset block is arranged on the side wall, perpendicular to the central line of the spring, of the through groove, the lower portion of the positioning pin shaft penetrates through the through groove, a reset groove is formed in the lower portion of the positioning pin shaft, and the reset block can be embedded into the reset groove to limit the positioning pin shaft;
the fishing device comprises a joint, a lifting head and a catching mechanism; the lifting head is hinged with the upper part of the joint through a cylindrical pin, and the lower part of the joint is connected with the catching mechanism; the lower end of the catching mechanism can be meshed with the upper ends of the clamping jaws.
2. A wireline core drill suitable for large bore geological drilling according to claim 1 wherein: the middle flange of the pressing sleeve is conical with a big top and a small bottom.
3. A wireline core drill suitable for large bore geological drilling according to claim 1 wherein: a plurality of water passing key grooves are uniformly distributed on the side surface of the suspension ring.
4. A wireline core drill suitable for large bore geological drilling according to claim 1 wherein: the catching mechanism of the fishing device is of a bell jar type structure, and the lower end of the catching mechanism can be meshed with the upper end of the clamping jaw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020243488.1U CN211648053U (en) | 2020-03-03 | 2020-03-03 | Rope coring drilling tool suitable for large-caliber geological drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020243488.1U CN211648053U (en) | 2020-03-03 | 2020-03-03 | Rope coring drilling tool suitable for large-caliber geological drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211648053U true CN211648053U (en) | 2020-10-09 |
Family
ID=72686430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020243488.1U Withdrawn - After Issue CN211648053U (en) | 2020-03-03 | 2020-03-03 | Rope coring drilling tool suitable for large-caliber geological drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211648053U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173467A (en) * | 2020-03-03 | 2020-05-19 | 湖南科技大学 | Rope coring drilling tool suitable for large-caliber geological drilling |
-
2020
- 2020-03-03 CN CN202020243488.1U patent/CN211648053U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173467A (en) * | 2020-03-03 | 2020-05-19 | 湖南科技大学 | Rope coring drilling tool suitable for large-caliber geological drilling |
| CN111173467B (en) * | 2020-03-03 | 2024-04-12 | 湖南科技大学 | Rope coring drilling tool suitable for heavy-calibre geological drilling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20201009 Effective date of abandoning: 20240412 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20201009 Effective date of abandoning: 20240412 |