CN213016244U - Down-the-hole drill casing pipe device of breaking out - Google Patents
Down-the-hole drill casing pipe device of breaking out Download PDFInfo
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- CN213016244U CN213016244U CN202021055636.3U CN202021055636U CN213016244U CN 213016244 U CN213016244 U CN 213016244U CN 202021055636 U CN202021055636 U CN 202021055636U CN 213016244 U CN213016244 U CN 213016244U
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Abstract
The utility model discloses a down-the-hole drill sleeve pipe device of breaking out can once only accomplish the lower sheathed tube of sleeve pipe extraction process through this device and lock fixedly, the sheathed tube continuous rotation dismantlement of pressing from both sides tight and screw thread of upper portion. The device comprises a lower bottom plate part and an upper bottom plate part, wherein the upper bottom plate part can move upwards along a guide column when the shackle is rotated; the lower bottom plate part comprises a lower bottom plate, a clamping oil cylinder, a lower clamping block, a guide post and the like; the upper bottom plate part comprises an upper bottom plate, a hydraulic motor reducer, a rotary locking mechanism and the like; the rotary locking mechanism is connected with the rotary clamping ring of the upper bottom plate and can rotate around the center; the lower bottom plate is connected with the upper bottom plate through a guide post, and a rubber buffer sleeve is placed at the shaft shoulder positioning position of the guide post. The shackle device is connected with a wellhead operating platform of the down-the-hole drill through a lower bottom plate.
Description
Technical Field
The utility model relates to a downhole drill sleeve pipe device of breaking out belongs to the probing construction field of downhole drill.
Background
The down-the-hole drill is a common device for drilling shallow geothermal energy buried pipe holes and water source wells, and the basic working principle is that compressed air is used as power, a drill bit is driven by an impactor to impact rock and soil, and rock and soil fragments return to the ground through a gap between a drill rod and a drill hole under the action of air flow. When the bottom layer is soft or broken, in order to prevent hole collapse caused by airflow impact, a sleeve needs to be placed on the inner side of the drilled hole, and after the operation in the hole is finished, the sleeve is pulled out. The current common casing pipe pulling-out operation process is as follows: the casing clamp plate is placed at the wellhead, after the casing is lifted by the drilling machine, the clamp plate bolt is manually screwed, the casing is prevented from dropping, and then the casing chain tongs are manually used for tripping. Because field muddy water is more, and the sleeve pipe screw thread is tighter, often need to strike with the hammer simultaneously, rotate the chain tongs, workman's working time is long, intensity is big. Therefore, the development of a special casing dismounting device for a down-the-hole drill is a problem to be solved in the field.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a purpose is exactly to the problem of breaking out of down-the-hole drill sleeve pipe, discloses a device of breaking out of down-the-hole drill sleeve pipe, and the locking of the lower sheathed tube that can once only accomplish the sleeve pipe through this device and extract the process is fixed, and the upper portion sheathed tube presss from both sides tightly and the continuous rotation of screw thread dismantles.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a casing shackle device of a down-the-hole drill comprises a lower bottom plate part and an upper bottom plate part, wherein the upper bottom plate part can move upwards along a guide column when the shackle is rotated; the lower bottom plate part comprises a lower bottom plate, a clamping oil cylinder, a lower clamping block, a guide post and the like; the upper bottom plate part comprises an upper bottom plate, a hydraulic motor reducer, a rotary locking mechanism and the like; the rotary locking mechanism is connected with the rotary clamping ring of the upper bottom plate and can rotate around the center; the lower bottom plate is connected with the upper bottom plate through a guide post, and a rubber buffer sleeve is placed at the shaft shoulder positioning position of the guide post. The shackle device is connected with a wellhead operating platform of the down-the-hole drill through a lower bottom plate.
The center of the lower bottom plate is provided with a central hole, and the diameter of the central hole is 20mm larger than that of the sleeve; the clamping oil cylinders are fixed on the lower bottom plate and are distributed in a bilateral symmetry manner, the piston rods are connected with the lower clamping blocks, and the lower clamping blocks can move left and right on the lower bottom plate along with the piston rods; the lower clamping block is in contact with the clamping sleeve and is partially processed into an arc shape, and the diameter of the arc is equal to that of the sleeve.
The center of the upper bottom plate is provided with a central hole, and the diameter of the central hole is 20mm larger than that of the sleeve; the rotary clamping ring is fixed on the upper base plate through a bolt and is concentric with the central hole, and a rotary gasket is arranged on the inner side of the rotary clamping ring to reduce the rotary friction force of the rotary locking mechanism; the hydraulic motor speed reducer is fixed on the upper bottom plate and is connected with a gear of the rotary locking mechanism through a speed reducer gear;
the rotary locking structure comprises a rotary ring, a fixed clamping plate, a movable clamping block, a connecting rod, a screw sleeve, a screw rod, a pin shaft, a hand wheel and the like, wherein the movable clamping block and the screw sleeve are connected through the connecting rod and the pin shaft, the lever multiplication principle is utilized, the screw rod is rotated, then the connecting rod drives the movable clamping block, and the sleeve is loosened or clamped. When the sleeve is locked by the movable clamping block, the connecting rod is larger than or equal to the position of the horizontal dead point.
The inner diameter of the rotating ring is 4mm larger than the outer diameter of the sleeve; the lower part is provided with a groove which is connected with the rotary snap ring; the outer side is provided with a gear which is connected with a reducer gear; three vertical grooves are processed on the inner side surface of the left side, the vertical grooves are distributed at an angle of 60 degrees with the transverse center, three fixing clamping plates are respectively placed, the diameters of inner arcs of the three clamping plates are the same as the diameter of the sleeve, and the center of each clamping plate is superposed with the center of the sleeve; the left side extension center is provided with a horizontal sliding groove and a vertical sliding groove, and the movable clamping block and the screw sleeve can slide in the sliding grooves.
The diameter of the cambered surface at the inner side of the movable clamping block is the same as that of the sleeve, and a gap larger than 2mm can be formed when the movable clamping block moves towards the outer side of the sleeve; patterns are processed on the inner arc surface, and the sleeve slides when placed and clamped; and a pin shaft connecting structure is processed on the opposite side of the cambered surface.
The screw sleeve is connected with the screw rod, rotates along with the screw rod, moves up and down in the chute, and is processed with a pin shaft connecting structure.
The four guide posts are respectively fixed at four corners of the lower base plate, the upper base plate can rotatably slide along with the screw threads on the upper cylindrical surface of each guide post, the length of the upper cylindrical surface is greater than that of the screw threads of the sleeve, the top of each guide post is provided with a position positioning nut, and the rubber sleeve of the shaft shoulder is used for buffering the impact of the falling of the upper base plate when the shackle is finished.
The utility model has the advantages as follows:
the utility model discloses a fixed lower casing of lower plate part of sleeve pipe break-out device and the hydraulic motor speed reducer of upper plate part drive the rotatory sleeve pipe of dismantling of rotatory locking mechanism, realize that the sheathed tube extracts in the down-the-hole drill construction, replace the manual operation of original low efficiency high strength, the device simple structure, convenient to use.
Drawings
In order to more clearly illustrate the technical solution of the present invention in the prior art, the following briefly introduces the drawings that need to be used:
FIG. 1 is a schematic view of a shackle device
FIG. 2 plan view of the shackle device
Wherein: the device comprises a lower bottom plate 1, an upper bottom plate 2, a guide post 3, a buffer sleeve 4, a nut 5, a clamping oil cylinder 6, a piston rod 7, a lower clamping block 8, a hydraulic motor reducer 9, a reducer gear 10, a rotary locking mechanism 11, a rotary clamping ring 12, a rotary gasket 13, a rotary ring 14, a fixed clamping plate 15, a movable clamping block 16, a connecting rod 17, a thread sleeve 18, a screw rod 19, a thread sleeve pin 20, a movable clamping block pin 21, a pressing plate 22, a hand wheel 23, a lower sleeve 24 and an upper sleeve 25.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The shackle device has the following specific structure:
comprises a lower bottom plate part and an upper bottom plate part; the lower bottom plate part comprises a lower bottom plate 1, a clamping oil cylinder 6, a lower clamping block 8, a guide post 3 and the like; the upper bottom plate part comprises an upper bottom plate 2, a hydraulic motor speed reducer 9, a rotary locking mechanism 11 and the like; the rotary locking mechanism 11 is connected with the rotary clamping ring 12 of the upper base plate 2 and can rotate around the center; the lower base plate 1 is connected with the upper base plate 2 through a guide column 3, and a rubber buffer sleeve 4 is placed at the shaft shoulder positioning position of the guide column 3.
Furthermore, the center of the lower bottom plate 1 is provided with a central hole, and the diameter of the central hole is 20mm larger than the diameter of the sleeve 24;
furthermore, the clamping oil cylinders 6 are fixed on the lower bottom plate 1 and are distributed in a bilateral symmetry manner, the piston rods 7 are connected with the lower clamping blocks 8, and the lower clamping blocks 8 can move left and right on the lower bottom plate 1 along with the piston rods 7;
furthermore, the part of the lower clamping block 8 contacting with the clamping sleeve 24 is processed into an arc shape, the diameter of the arc is equal to the diameter of the sleeve, and patterns are processed on the arc surface to prevent the sleeve from rotating in the rotating process.
Furthermore, a central hole is formed in the center of the upper bottom plate 2, and the diameter of the central hole is 20mm larger than that of the sleeve;
furthermore, the rotary clamping ring 12 is fixed on the upper base plate 2 through a bolt and is concentric with the central hole, and a rotary gasket 13 is arranged on the inner side of the rotary clamping ring 12, so that the rotary friction force of the rotary locking mechanism 11 is reduced;
further, the hydraulic motor reducer 9 is fixed on the upper base plate 2 and is connected with a gear of the rotary locking mechanism 11 through a reducer gear 10;
further, the rotary locking structure 11 includes a rotary ring 14, a fixed clamping plate 15, a movable clamping block 16, a connecting rod 17, a screw sleeve 18, a screw rod 19, a pin 20/21, a hand wheel 23, and the like, wherein the movable clamping block 16 and the screw sleeve 18 are connected through the connecting rod 17 and the pin 20/21, and the sleeve 25 is loosened or clamped by rotating the screw rod 19 and then driving the movable clamping block 16 by the connecting rod 17 according to the principle of lever multiplication. When the moving fixture block 21 locks the sleeve 25, the connecting rod 16 is greater than or equal to the horizontal dead point position.
Further, the inner diameter of the rotating ring 14 is 4mm larger than the outer diameter of the sleeve 25; the lower part is provided with a groove which is connected with the rotary snap ring 12; the outer side is provided with a gear which is connected with a reducer gear 10; three vertical grooves are processed on the inner side surface of the left side, the vertical grooves are distributed at an angle of 60 degrees with the transverse center, three fixing clamping plates 15 are respectively placed, the diameters of inner arcs of the three clamping plates are the same as that of the sleeve 25, and the center of each clamping plate is superposed with that of the sleeve 25; the left side extension center is provided with a horizontal sliding groove and a vertical sliding groove, and the movable clamping block 16 and the screw sleeve 18 can slide in the sliding grooves.
Further, the diameter of the inner arc surface of the movable fixture block 16 is the same as the diameter of the sleeve, and a gap larger than 2mm can be formed when the movable fixture block moves towards the outer side of the sleeve 25; patterns are processed on the inner arc surface, and the sleeve 25 slides when placed and clamped; and a pin shaft 21 connecting structure is processed on the opposite side of the cambered surface.
Further, the screw sleeve 18 is connected with the screw rod 19, rotates along with the screw rod 19, moves up and down in the chute, and is provided with a pin shaft 22 connecting structure.
Furthermore, four guide posts 3 are respectively fixed at four corners of the lower base plate 1, the upper base plate 2 can rotatably slide along with the screw threads on the upper cylindrical surface of the guide posts 3, the length of the upper cylindrical surface is greater than that of the screw threads of the sleeve 25, a position positioning nut 5 is arranged at the top of the guide posts 3, and a rubber sleeve of a shaft shoulder is used for buffering the impact of the falling of the upper base plate when the shackle is finished.
The safe operation process for shackle by using the device comprises the following steps:
the method comprises the following steps: the device is connected to a wellhead operation platform of a down-the-hole drill through a lower bottom plate 1, the center of the lower bottom plate 1 is enabled to coincide with the center of a casing 24, then a control oil pipe of a clamping oil cylinder 6 is connected, a piston rod 7 of the clamping oil cylinder 6 drives a lower clamping block 8 to move outwards by operating a control valve, then a handle 23 is rotated to control a moving clamping block 16 to move outwards to form a gap with the casing, and then the down-the-hole drill is moved to enable the casing 25 to pass through a center hole of a tripping device.
Step two: starting a drilling machine to hoist, pulling out the sleeve 24 upwards, and stopping lifting when the threaded connection part of the upper sleeve 25 and the lower sleeve 24 reaches between the lower clamping block 8 and the fixed clamping plate 15; then the control valve is operated to make the clamping oil cylinder 6 drive the lower clamping block 8 to move towards the center, thereby clamping the lower sleeve 24, and the pressurization is stopped after a certain pressure is reached.
Step three: and the hand wheel 23 is rotated, so that the screw rod 19 drives the screw sleeve 18 and the connecting rod 17 to move, the movable clamping block 16 slides towards the center of the upper sleeve 25, the upper sleeve 25 is clamped, and the rotation is stopped after a certain torque is reached.
Step four: the hydraulic motor speed reducer 9 is started to drive the rotary locking mechanism 11 to rotate anticlockwise (the sleeve is reversely threaded) through the speed reducer gear 10, and at the moment, the upper base plate 2 of the thread-off device rises along the guide post 3 along with the rotation of the thread, so that the thread is completely unloaded.
Step five: slowly operating the drilling machine to hoist, placing the upper sleeve 25 in a hoisting state, reversely rotating the handle 23 to release the locking of the sleeve, and hoisting the upper sleeve 25 out. And then connecting the casing hanger to the thread of the lower casing 24, operating the drilling machine to hoist, and loosening the clamping oil cylinder 6 after the drilling machine has pretightening force.
And repeating the steps until the sleeve is completely pulled out.
Example (b):
weifang information industry garden ground source heat pump project, buried pipe hole construction middle sleeve pipe pull-out application. The depth of the hole is 120 m, initial geological survey shows that the upper part of the hole is 40 m and is a soil structure, hole collapse is easily caused by using a down-the-hole hammer drilling process, drilling accidents are caused, a casing needs to be put down in the upper part, and the outer diameter of the casing is 146 mm. Wherein 2 down-the-hole drillers are installed with the device and carry out the drilling construction, other drillers still adopt traditional artifical casing break-out mode, and the process of creeping into earlier stage is little different with other drillers, nevertheless in the casing lifting stage, adopts the rig working progress of this device to improve by a wide margin than other drillers to workman intensity of labour also reduces by a wide margin.
Claims (10)
1. The utility model provides a downhole drill sleeve pipe break-out device which characterized in that: the shackle comprises a lower bottom plate part and an upper bottom plate part, wherein the upper bottom plate part can move upwards along a guide column when the shackle is rotated; the lower bottom plate part comprises a lower bottom plate, a clamping oil cylinder, a lower clamping block, a guide post and the like; the upper bottom plate part comprises an upper bottom plate, a hydraulic motor reducer, a rotary locking mechanism and the like; the rotary locking mechanism is connected with the rotary clamping ring of the upper bottom plate and can rotate around the center; the lower bottom plate and the upper bottom plate are connected through the guide post, a rubber buffer sleeve is placed at the shaft shoulder positioning position of the guide post, and the shackle device is connected with a wellhead operation table of the down-the-hole drill through the lower bottom plate.
2. A down-the-hole drill casing break-out device as claimed in claim 1, wherein: the center of the lower bottom plate is provided with a central hole, and the diameter of the central hole is larger than that of the sleeve.
3. A down-the-hole drill casing break-out device as claimed in claim 1, wherein: the clamping oil cylinders are fixed on the lower bottom plate and are distributed in bilateral symmetry, the piston rods are connected with the lower clamping blocks, and the lower clamping blocks can move left and right on the lower bottom plate along with the piston rods.
4. A down-the-hole drill casing break-out device as claimed in claim 1, wherein: the lower clamping block is in contact with the clamping sleeve and is processed into an arc, the diameter of the radian is equal to that of the sleeve, and meanwhile, patterns are processed on the arc surface to prevent the sleeve from rotating in the rotating process.
5. A down-the-hole drill casing break-out device as claimed in claim 1, wherein: the center of the upper bottom plate is provided with a central hole, and the diameter of the central hole is larger than that of the sleeve.
6. A down-the-hole drill casing break-out device as claimed in claim 1, wherein: the rotary clamping ring is fixed on the upper base plate through a bolt and is concentric with the central hole, and the rotary gasket is placed on the inner side of the rotary clamping ring, so that the rotary friction force of the rotary locking mechanism is reduced.
7. A down-the-hole drill casing break-out device as claimed in claim 1, wherein: the rotary locking structure comprises a rotary ring, a fixed clamping plate, a movable clamping block, a connecting rod, a screw sleeve, a screw rod, a pin shaft, a hand wheel and the like, wherein the movable clamping block and the screw sleeve are connected through the connecting rod and the pin shaft, the lever multiplication principle is utilized, the screw rod is rotated, then the connecting rod drives the movable clamping block, the sleeve is loosened or clamped, and when the sleeve is locked through the movable clamping block, the connecting rod is larger than or equal to the position of a horizontal stop point.
8. A down-the-hole drill casing break-out device as claimed in claim 7, wherein: the inner diameter of the rotating ring is 4mm larger than the outer diameter of the sleeve; the lower part is provided with a groove which is connected with the rotary snap ring; the outer side is provided with a gear which is connected with a reducer gear; three vertical grooves are processed on the inner side surface of the left side, the vertical grooves are distributed at an angle of 60 degrees with the transverse center, three fixing clamping plates are respectively placed, the diameters of inner arcs of the three clamping plates are the same as the diameter of the sleeve, and the center of each clamping plate is superposed with the center of the sleeve; the left side extension center is provided with a horizontal sliding groove and a vertical sliding groove, and the movable clamping block and the screw sleeve can slide in the sliding grooves.
9. A down-the-hole drill casing break-out device as claimed in claim 7, wherein: the diameter of the cambered surface at the inner side of the movable clamping block is the same as that of the sleeve, and a gap larger than 2mm can be formed when the movable clamping block moves towards the outer side of the sleeve; patterns are processed on the inner arc surface, and the sleeve slides when placed and clamped; and a pin shaft connecting structure is processed on the opposite side of the cambered surface.
10. A down-the-hole drill casing break-out device as claimed in claim 1, wherein: the four guide posts are respectively fixed at four corners of the lower base plate, the upper base plate can rotatably slide along with the screw threads on the upper cylindrical surface of each guide post, the length of the upper cylindrical surface is greater than that of the screw threads of the sleeve, the top of each guide post is provided with a position positioning nut, and the rubber sleeve of the shaft shoulder is used for buffering the impact of the falling of the upper base plate when the shackle is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021055636.3U CN213016244U (en) | 2020-06-10 | 2020-06-10 | Down-the-hole drill casing pipe device of breaking out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021055636.3U CN213016244U (en) | 2020-06-10 | 2020-06-10 | Down-the-hole drill casing pipe device of breaking out |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213016244U true CN213016244U (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021055636.3U Active CN213016244U (en) | 2020-06-10 | 2020-06-10 | Down-the-hole drill casing pipe device of breaking out |
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| Country | Link |
|---|---|
| CN (1) | CN213016244U (en) |
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- 2020-06-10 CN CN202021055636.3U patent/CN213016244U/en active Active
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