CN212027666U - PDC drill bit and drilling equipment suitable for mining geological shale gas of sand shale in slope zone - Google Patents
PDC drill bit and drilling equipment suitable for mining geological shale gas of sand shale in slope zone Download PDFInfo
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- CN212027666U CN212027666U CN202020409103.4U CN202020409103U CN212027666U CN 212027666 U CN212027666 U CN 212027666U CN 202020409103 U CN202020409103 U CN 202020409103U CN 212027666 U CN212027666 U CN 212027666U
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Abstract
The utility model provides a be suitable for PDC drill bit and drilling equipment of slope area sand shale geology shale gas exploitation, include: a crown portion having a plurality of blades for cutting provided along a side surface at an upper portion thereof; the joint part is provided with a connecting hole at one end of the crown part, and one end of the joint part is connected with the crown part through the connecting hole; the connecting assembly is arranged in an installation cavity formed in the joint part and comprises a driving part, a transmission part, a recovery part and locking heads, one end of the driving part extends out of the joint part, the other end of the driving part is connected with the transmission part, and the locking heads are respectively arranged on one sides of the transmission parts, which are respectively far away from the driving part, so that when the driving part outside the joint part is operated, the locking heads positioned in the installation cavity can be pushed out of the installation cavity and extend into the locking holes of the connecting holes in the crown part; and when the driving part is operated reversely, the locking heads can return to the initial positions under the action of the respective connected returning parts.
Description
Technical Field
The utility model relates to a drill bit technical field for the oil drilling especially relates to be suitable for PDC drill bit and drilling equipment of slope area sand shale geological shale gas exploitation.
Background
The PDC drill bit is a polycrystalline diamond compact drill bit for short, is a drilling tool commonly used in geological drilling industry, is evolved from a diamond drill, can be used for coal bed drilling and excavation on a coal mine and drilling and production of an oil-gas field, and has higher hardness, wear resistance and service life.
In the prior art, a PDC drill bit usually breaks rock by cutting the rock, a crown portion of the PDC drill bit is designed with a plurality of blades, the crown portion is fixed with a joint portion through a middle portion, and the joint portion is connected with an apparatus body.
The existing PDC drill bit has the defects that the crown needs to bear a large torsional force in the tunneling process, so that blades of the crown are easily broken or ground flat, the damaged PDC drill bit needs to be replaced in time, the power cost of the equipment body is saved, and the whole PDC drill bit needs to be replaced after the blades of the crown are damaged due to the fact that the crown and the middle part, and the middle part and the joint part are fixedly connected, so that the production cost of a user is increased undoubtedly.
SUMMERY OF THE UTILITY MODEL
Not enough to exist among the prior art, the utility model provides a be suitable for PDC drill bit and drilling equipment of slope area shale geology shale gas exploitation, its PDC drill bit and joint portion fixed connection that has solved existence among the prior art, the crown damages the back and can only change the PDC drill bit wholly, and the great problem of cost that leads to.
According to the utility model discloses an embodiment is suitable for PDC drill bit of slope area sand shale geology shale gas exploitation, include:
a crown portion having a plurality of blades for cutting provided along a side surface at an upper portion thereof;
the joint part is provided with a connecting hole at one end of the crown part, and one end of the joint part is connected with the crown part through the connecting hole; and
the connecting assembly is arranged in an installation cavity formed in the joint part and comprises a driving part, a transmission part, a return part and locking heads, one end of the driving part extends out of the joint part, the other end of the driving part is connected with the transmission part, and the locking heads are respectively arranged on one sides of the transmission parts, which are respectively far away from the driving part, so that when the driving part outside the joint part is operated, the locking heads positioned in the installation cavity can be pushed out of the installation cavity and extend into the locking holes of the connecting holes in the crown part; and when the driving part is operated reversely, the locking heads can return to the initial positions under the action of the respective connected returning parts.
Further, the driving portion comprises a rotating rod, the rotating rod is arranged in the installation cavity and can rotate under the limitation of the inner wall of the installation cavity, and the cross section of one end, extending out of the installation cavity, of the rotating rod is in a polygonal shape.
Further, the transmission portion includes a movable stage that is entirely trapezoidal in shape, the movable stage being screw-connected to the rotating lever so as to be able to be driven to move in the direction of the axis of the rotating lever when the rotating lever is operated.
Furthermore, each locking head is respectively connected to two sides of the mobile station and clings to the inner wall of the installation cavity, and the end part of each locking head and the side surface of the mobile station are both inclined surfaces so that the locking heads can be pushed out of the joint part when the mobile station moves; all be connected with the portion of replying between locking head and the installation intracavity wall, the portion of replying includes the spring to when making the mobile station reply initial position, locking head can stretch into the installation intracavity under the spring action.
Further, the rotating lever core is opened with a passage for supplying water.
Further, the drive portion includes first carriage release lever, second carriage release lever and carousel, and first carriage release lever one end is stretched out outside the installation cavity, and the one end that first carriage release lever and second carriage release lever are close to the carousel all is connected with the rectangle frame, carousel surface connection has the gyro wheel that is located the rectangle frame to when promoting the first carriage release lever tip that is located the installation cavity outside, can drive the second carriage release lever through the carousel and remove along joint portion axis direction.
Further, the second movable rod and the first movable rod are integrally formed
The shape structure, the one end that the carousel was kept away from to the second carriage release lever is fixed with transmission portion, transmission portion includes the mobile station, the mobile station side is provided with two locking heads to when making the first carriage release lever of operation, the mobile station can promote locking head stretches out outside the installation cavity, and when unclamping first carriage release lever it can be under the spring action of installing in the installation cavity inner wall and locking on the head, reply initial position.
Furthermore, mounting plates for mounting springs are fixed on the two locking heads.
Further, the drilling equipment is provided with the PDC drill bit suitable for the exploitation of the shale gas in the slope sand shale geological condition.
Compared with the prior art, the utility model discloses following beneficial effect has: the crown and the joint part adopt a detachable connection mode, when the blade on the crown is damaged, only the part of the crown needs to be replaced, and the whole drill bit does not need to be replaced, so that the production cost is saved;
the utility model discloses the crown passes through coupling assembling and is connected with joint portion, through operation coupling assembling's first carriage release lever or dwang alright break away from crown and joint portion, both guaranteed the intensity that crown and joint portion are connected, can conveniently take off the crown from the joint portion again.
Drawings
FIG. 1 is a schematic structural view of a PDC drill bit of the present invention;
fig. 2 is a cross-sectional view of embodiment 1 of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a sectional view of example 2.
In the above drawings: crown 1, blades 11, teeth 12, joint part 2, mounting cavity 21, connecting assembly 3, rotating rod 31, waterline 311, connecting ring 312, moving table 32, spring 33, locking head 34, mounting plate 341, first moving rod 35, second moving rod 36, turntable 37, rectangular frame 371 and roller 372.
Detailed Description
The technical solution of the present invention/utility model will be further explained with reference to the drawings and the embodiments.
Example 1
As shown in FIG. 1, the embodiment of the utility model provides a PDC drill bit that is suitable for slope area shale geology shale gas exploitation, include: a crown part 1 for drilling, wherein a plurality of blades 11 for cutting are formed on the upper part of the crown part 1 along the side surface, and a row of teeth 12 for cutting are fixed on the upper part of the blades 11, which is the prior art and therefore is not described in detail herein; the joint part 2, the countersunk head connecting hole has been seted up to 1 one end of crown, and 2 one ends of joint part are inserted in the connecting hole of crown 1 and are connected with crown 1, and in order to connect more reliably stable, can design this countersunk head hole for square hole. As shown in fig. 2-4, the PDC drill bit of the present invention further includes a connecting assembly 3, which is installed in the installation cavity 21 formed inside the joint, the connecting assembly 3 includes a driving portion, a transmission portion, a restoring portion and a locking head 34, one end of the driving portion extends out of the joint portion 2, the other end of the driving portion is connected to the transmission portion, and one side of the transmission portion respectively far away from the driving portion is respectively provided with the locking head 34, so that when the driving portion outside the joint portion 2 is operated, the locking head 34 located in the installation cavity 21 can be partially pushed out of the installation cavity 21 and extend into the locking hole of the connecting hole in the crown portion 1; and when the driving portions are operated in reverse, the locking heads 34 can be returned to the initial positions by the respective connected returning portions. This embodiment has the advantage that the crown 1 and the coupling part 2 are designed to be detachable, and after the blades 11 on the crown 1 are damaged, the crown 1 can be detached from the coupling part 2 by detaching the coupling part 2 from the drilling equipment, thereby saving the production cost.
In this embodiment, refer to fig. 2, the driving portion includes the dwang 31, circumference design has outside convex go-between on the dwang 31 body, thereby dwang 31 is connected with the annular groove on the installation cavity 21 inner wall, and the dwang 31 stretches out the tip that the installation cavity 21 was convenient for use spanner rotated dwang 31 like this of the transversal multilateral shape of personally submitting of one end, the tip of dwang 31 rotates during the use, go-between 311 on the dwang 31 alright in order to rotate in the recess, joint portion 2 can be stretched out to the one end that the transmission portion was connected to dwang 31, of course also can set up the space that enough dwang 31 removed with installation cavity 21, the passageway that is used. Referring to fig. 3, the transmission part includes a moving stage 32 having a ladder shape as a whole, that is, the moving stage 32 has a ladder shape in a longitudinal section, and as can be seen from fig. 3, the moving stage 32 is screw-coupled to the rotating lever 31, and the moving stage 32 is designed as a ladder-shaped stage so as to move the moving stage 32 along the axial direction of the rotating lever 31 when the rotating lever 31 is operated. Each locking head 34 is respectively connected to two sides of the movable table 32, and the locking heads 34 are tightly attached to the inner wall of the mounting cavity 21, so that the locking heads 34 can slide under the limitation of the inner wall of the mounting cavity 21, the end parts of the locking heads 34 and the side surfaces of the movable table 32 are inclined surfaces, so that the locking heads 34 can be pushed out of the joint parts 2 when the movable table 32 moves, and the end parts of the locking heads 34 extending out of the mounting cavity 21 can be inserted into locking holes in the inner walls of the counter bores of the crown part 1, and the crown part 1 and the joint parts 2 are locked; all be connected with the portion of replying between two locking heads 34 and the installation cavity 21 inner wall, the portion of replying includes spring 33, and operation dwang 31 can insert locking head 34 in the locking hole to when making mobile station 32 reply initial position, locking head 34 can stretch into in the installation cavity 21 under the spring 33 effect.
Example 2
This embodiment is basically the same as the structure provided in the embodiment, referring to fig. 4, except that in this embodiment, the driving portion includes a first moving rod 35, a second moving rod 36 and a rotating disk 37, one end of the first moving rod 35 extends out of the installation cavity 21, one ends of the first moving rod 35 and the second moving rod 36 close to the rotating disk 37 are both fixed with a rectangular frame 371, a roller 372 located in the rectangular frame 371 is connected to the surface of the rotating disk 37, so that when pushing the end of the first moving rod 35 located out of the installation cavity 21, the roller 372 can rotate in the rectangular frame 371, the length of the rectangular frame 371 is such that the rotating disk 37 is not limited to rotate, so as to drive the rotating disk 37 to rotate when pushing the first moving rod 35, the rotating disk 37 can be installed in the installation cavity 21, the first moving rod 35 is installed on the other side of the rotating disk 37, so that the rotating disk 37 can be located at the center of the installation cavity 21, the design is convenient. The end of the second moving rod 36 close to the first moving rod 35 is also connected with a rectangular frame 371, so that the second moving rod 36 can be driven by the rotating disc 37 to move along the axial direction of the joint part 2.
Further, the second moving bar 36 and the first moving bar 35 are integrally formed
The structure is designed such that the ends of the second moving rod 36 and the first moving rod 35, which are far away from the rotary table 37, extend out from the center of the joint part 2, the end of the second moving rod 36, which is far away from the rotary table 37, is fixed with a transmission part, which comprises a moving table 32, two locking heads 34 are arranged on the side of the moving table 32, so that when the first moving rod 35 is operated, the moving table 32 can push the locking heads 34 to extend out of the installation cavity 21, and when the first moving rod 35 is released, the locking heads 34 can return to the initial position under the action of the springs 33 arranged on the inner wall of the installation cavity 21 and the locking heads 34, namely, the locking heads 34 can extend into the installation cavity 21 under the action of the springs 33, so as to sleeve the crown part 1, then the end of the joint part 2, which is far away from the crown part 1, is connected with the drilling equipment, and the drilling equipment is provided with a protruding part, which can, the springs are all compression springs; when the crown part 1 is used, the end of the joint part 2 far away from the crown part 1 is connected to a drilling device, the drilling device can enable the part of the first movable rod 35 extending out of the installation cavity 21 to be pressed into the installation cavity 21, so that the moving process is carried out, and the crown part 1 can be locked by sleeving the crown part 1 on the joint part 2.
To facilitate returning the locking heads 34 to the initial position, a mounting plate 341 for mounting the spring 33 is fixed to each locking head 34.
The utility model discloses still apply for protection a drilling equipment, its above-mentioned PDC drill bit of installation.
Finally, it is stated that the above embodiments are only used to illustrate the technical solution of the present invention and not to limit, although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced with other solutions without departing from the spirit and scope of the technical solution of the present invention, which should be covered in the claims of the present invention.
Claims (9)
1. Be suitable for PDC drill bit of exploitation of slope area sand shale geology shale gas, its characterized in that includes:
a crown portion having a plurality of blades for cutting provided along a side surface at an upper portion thereof;
the joint part is provided with a connecting hole at one end of the crown part, and one end of the joint part is connected with the crown part through the connecting hole; and
the connecting assembly is arranged in an installation cavity formed in the joint part and comprises a driving part, a transmission part, a return part and locking heads, one end of the driving part extends out of the joint part, the other end of the driving part is connected with the transmission part, and the locking heads are respectively arranged on one sides of the transmission parts, which are respectively far away from the driving part, so that when the driving part outside the joint part is operated, the locking heads positioned in the installation cavity can be pushed out of the installation cavity and extend into the locking holes of the connecting holes in the crown part; and when the driving part is operated reversely, the locking heads can return to the initial positions under the action of the respective connected returning parts.
2. The PDC bit suitable for extraction of shale gas from a deviated shale with sand and shale as claimed in claim 1, wherein: the drive part comprises a rotating rod, the rotating rod is arranged in the installation cavity and can rotate under the limitation of the inner wall of the installation cavity, and the cross section of one end, extending out of the installation cavity, of the rotating rod is polygonal.
3. The PDC bit suitable for extraction of shale gas from a deviated shale with sand and shale as claimed in claim 2, wherein: the transmission part comprises a mobile platform which is integrally in a trapezoidal shape, and the mobile platform is in threaded connection with the rotating rod so as to be capable of driving the mobile platform to move along the axis direction of the rotating rod when the rotating rod is operated.
4. The PDC bit suitable for extraction of shale gas from the cliff geological formation of claim 3, wherein: each locking head is respectively connected to two sides of the mobile station and clings to the inner wall of the mounting cavity, and the end part of each locking head and the side surface of the mobile station are both inclined surfaces so that the locking heads can be pushed out of the joint part when the mobile station moves; all be connected with the portion of replying between locking head and the installation intracavity wall, the portion of replying includes the spring to when making the mobile station reply initial position, locking head can stretch into the installation intracavity under the spring action.
5. The PDC bit suitable for extraction of shale gas from the cliff geological formation of claim 4, wherein: the rotating rod core is opened with a passage for water supply.
6. The PDC bit suitable for extraction of shale gas from a deviated shale with sand and shale as claimed in claim 1, wherein: the drive part comprises a first moving rod, a second moving rod and a rotary table, one end of the first moving rod extends out of the installation cavity, one ends of the first moving rod and the second moving rod, which are close to the rotary table, are connected with rectangular frames, the surface of the rotary table is connected with rollers located in the rectangular frames, so that when the end part of the first moving rod, which is located outside the installation cavity, is pushed, the second moving rod can be driven to move along the axis direction of the joint part through the rotary table.
7. The PDC bit suitable for extraction of shale gas from the cliff geological formation of claim 6, wherein: the second movable rod and the first movable rod are integrally formed
The shape structure is that one end of the second moving rod far away from the rotary table is fixedThere is transmission portion, transmission portion includes the mobile station, the mobile station side is provided with two locking heads to when making the first carriage release of operation, the mobile station can promote the locking head stretches out outside the installation cavity, and it can be under the spring action of installing on installation cavity inner wall and locking head when loosening first carriage release, returns initial position.
8. The PDC drill bit suitable for extraction of shale gas from the geologic shale with sands and mudstones in the slope of claim 4 or 7, wherein: and mounting plates for mounting springs are fixed on the two locking heads.
9. A drilling apparatus characterized by: the PDC drill bit suitable for the exploitation of the geological shale gas with the slope sandstone of any one of claims 1 to 6 is installed on the drill bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020409103.4U CN212027666U (en) | 2020-03-26 | 2020-03-26 | PDC drill bit and drilling equipment suitable for mining geological shale gas of sand shale in slope zone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020409103.4U CN212027666U (en) | 2020-03-26 | 2020-03-26 | PDC drill bit and drilling equipment suitable for mining geological shale gas of sand shale in slope zone |
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| Publication Number | Publication Date |
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| CN212027666U true CN212027666U (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020409103.4U Active CN212027666U (en) | 2020-03-26 | 2020-03-26 | PDC drill bit and drilling equipment suitable for mining geological shale gas of sand shale in slope zone |
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| CN (1) | CN212027666U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206881A (en) * | 2020-03-26 | 2020-05-29 | 宜昌神达石油机械有限公司 | PDC drill bit suitable for mining geological shale gas with sand shale in slope |
-
2020
- 2020-03-26 CN CN202020409103.4U patent/CN212027666U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206881A (en) * | 2020-03-26 | 2020-05-29 | 宜昌神达石油机械有限公司 | PDC drill bit suitable for mining geological shale gas with sand shale in slope |
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