CN217439957U - Drilling bit and dragging sleeve device for underground gas hole - Google Patents
Drilling bit and dragging sleeve device for underground gas hole Download PDFInfo
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- CN217439957U CN217439957U CN202221333276.8U CN202221333276U CN217439957U CN 217439957 U CN217439957 U CN 217439957U CN 202221333276 U CN202221333276 U CN 202221333276U CN 217439957 U CN217439957 U CN 217439957U
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Abstract
The utility model relates to a drilling drill bit in gas hole in pit, including the guide's drill bit, the right side movable mounting of guide's drill bit has second grade reamer bit, the right side movable mounting of second grade reamer bit has tertiary reamer bit, the right side movable mounting of tertiary reamer bit has scalable tool bit, the right side demountable installation of scalable tool bit has the stock, all be provided with coupling mechanism between guide's drill bit and the second grade reamer bit, between second grade reamer bit and the tertiary reamer bit, between tertiary reamer bit and the scalable tool bit and between scalable tool bit and the stock. This drilling bit and dragging sleeve pipe device in gas hole in pit through setting up coupling mechanism, has realized the high-speed joint between the adjacent drill bit and has dismantled to the convenience is dismantled guide's drill bit, second grade reamer bit, tertiary reamer bit and scalable tool bit, through reducing the dismouting degree of difficulty, thereby the effectual maintenance efficiency that has improved the staff to the drill bit.
Description
Technical Field
The utility model relates to a colliery is soft coal seam gas drainage technical field in pit specifically is a drilling bit in gas hole in pit and drags bushing apparatus.
Background
The gas drainage of the coal mine high gas mine can reduce the gas emission amount during mining, reduce gas hidden danger and gas overrun, is a preventive measure for ensuring the safety production of the coal mine, is necessary for the high gas mine or a mining area in terms of safety, technically and economically, is one of important means for controlling gas and preventing coal and gas outburst of the coal mine, and is used for relieving pressure of a coal body and reducing the gas pressure and the gas content of the coal body per ton through drainage, so that the purposes of outburst elimination and safety production are achieved.
The coal seam of some high gas mines is a soft coal seam, the firmness is poor, hole collapse is caused during drilling due to the growth of cracks and the like, drilling accidents such as drill tool falling, breaking, drill sticking, drill burying and the like can be caused due to the hole collapse, the drilling construction progress and the drilling engineering quality are seriously influenced by the hole collapse accidents, and the gas extraction effect is greatly influenced.
For example, chinese patent CN 113530448A discloses a casing device while drilling for once hole forming in a soft coal seam, which is provided with a multi-stage hole expanding drill bit and a blade retracting mechanism, wherein the multi-stage hole expanding drill bit can realize one drill bit and can complete multiple hole expanding by once drilling, thereby reducing disturbance to the hole wall, and greatly shortening the exposed time of the hole, so as to greatly reduce the probability of hole collapse.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a drilling drill bit and dragging sleeve pipe device in gas hole in pit possesses advantages such as convenient maintenance, has solved inconvenient disassembling a plurality of drill bits in the use, has reduced the problem of the maintenance efficiency of drill bit.
In order to achieve the above object, the utility model provides a following technical scheme: a drilling bit for an underground gas hole comprises a pilot bit, wherein a second-stage reaming bit is movably mounted on the right side of the pilot bit, a third-stage reaming bit is movably mounted on the right side of the second-stage reaming bit, a telescopic cutter head is movably mounted on the right side of the third-stage reaming bit, an anchor rod is detachably mounted on the right side of the telescopic cutter head, and connecting mechanisms are arranged between the pilot bit and the second-stage reaming bit, between the second-stage reaming bit and the third-stage reaming bit, between the third-stage reaming bit and the telescopic cutter head and between the telescopic cutter head and the anchor rod;
coupling mechanism is including connecting the storehouse, the inside movable mounting in connection storehouse has quantity to be two installation piece, two the inside of installation piece all is provided with firm subassembly, it is two to rotate between the front inner wall in connection storehouse and the back inner wall and be connected with quantity to be two double-screw bolt, two the outside threaded connection of double-screw bolt has quantity to be two fly leaf, two the equal fixedly connected with quantity in one side that the fly leaf is relative is two fixed blocks, fixedly connected with stopper, two between the front inner wall in connection storehouse and the back inner wall the equal fixedly connected with worm wheel in the outside of double-screw bolt, the left side inner wall in connection storehouse rotates and is connected with one end and runs through and extend to the worm that connects the storehouse right side and mesh with the worm wheel.
Further, the subassembly that stabilizes is including seting up the constant head tank in installation piece one side, the flexible subassembly of inner wall fixedly connected with of constant head tank, the locating piece of one side fixedly connected with and the stopper outside of flexible subassembly closely laminating.
Further, flexible subassembly includes expanding spring and telescopic link, the expanding spring cover is established in the outside of telescopic link, one side of expanding spring and telescopic link and the inner wall fixed connection of constant head tank, the opposite side of expanding spring and telescopic link and the outside fixed connection of locating piece.
Further, the left and right sides of connecting the storehouse all set up respectively with the installation through-hole of two installation piece size looks adaptations, the fixed slot with fixed block size looks adaptations is all seted up to the front and the back of installation piece.
Furthermore, the number of the thread through holes which are two and are respectively in threaded connection with the two studs is arranged in the movable plate, and the thread directions in the movable plate are opposite.
Furthermore, a rectangular through hole is formed in the limiting block, the width of the rectangular through hole is matched with that of the movable plate, and the right side of the worm is fixedly connected with a rotating button.
Further, the stud is located at the bottom of the mounting block.
The utility model provides a pull sleeve pipe device in gas hole in pit, the right side of stock is provided with rotatory pipe mechanism that drags.
Further, rotatory pipe mechanism that drags includes with the bearing that the stock periphery wall cup jointed, the inner circle of bearing contacts with the periphery wall of stock, the periphery wall of bearing has cup jointed the interlock lasso, the outer lane of bearing contacts with the interlock lasso, the sleeve pipe has been cup jointed to the outside of interlock lasso.
Compared with the prior art, the technical scheme of the application has the following beneficial effects:
this drilling bit and dragging sleeve pipe device in gas hole in pit through setting up coupling mechanism, has realized the high-speed joint between the adjacent drill bit and has dismantled to the convenience is dismantled guide's drill bit, second grade reamer bit, tertiary reamer bit and scalable tool bit, and easy operation is swift, through having reduced the dismouting degree of difficulty, thereby can effectually improve the maintenance efficiency of staff to the drill bit.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of the connection mechanism structure of the present invention.
In the figure: the drilling tool comprises a pilot drill bit 1, a connecting mechanism 2, a 201 connecting bin, a 202 movable plate, a 203 mounting block, a 204 positioning groove, a 205 worm wheel, a 206 worm, a 207 positioning block, a 208 telescopic assembly, a 209 fixing block, a 210 limiting block, a 211 stud, a 3-stage reaming drill bit, a 4-stage reaming drill bit, a 5 telescopic tool bit, a 6 anchor rod, a 7 linkage ferrule, an 8 bearing and a 9 sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Please refer to fig. 1, the drilling bit for the downhole gas hole in the embodiment includes a pilot bit 1, a second-stage hole expanding bit 3 is movably mounted on the right side of the pilot bit 1, a third-stage hole expanding bit 4 is movably mounted on the right side of the second-stage hole expanding bit 3, a telescopic cutter head 5 is movably mounted on the right side of the third-stage hole expanding bit 4, an anchor rod 6 is detachably mounted on the right side of the telescopic cutter head 5, and connecting mechanisms 2 are respectively disposed between the pilot bit 1 and the second-stage hole expanding bit 3, between the second-stage hole expanding bit 3 and the third-stage hole expanding bit 4, between the third-stage hole expanding bit 4 and the telescopic cutter head 5, and between the telescopic cutter head 5 and the anchor rod 6.
The connecting mechanism 2 comprises a connecting bin 201, two mounting blocks 203 are movably mounted inside the connecting bin 201, mounting through holes matched with the two mounting blocks 203 in size are formed in the left side and the right side of the connecting bin 201 respectively, a stabilizing component is arranged inside each of the two mounting blocks 203, two studs 211 are rotatably connected between the front inner wall and the back inner wall of the connecting bin 201, the studs 211 are positioned at the bottom of the mounting blocks 203, two movable plates 202 are in threaded connection with the outer sides of the two studs 211, two threaded through holes which are in threaded connection with the two studs 211 respectively are formed in the movable plates 202, the thread directions inside the front movable plates 202 and the back movable plates 202 are opposite, two fixed blocks 209 are fixedly connected to the opposite sides of the two movable plates 202, and fixing grooves matched with the fixed blocks 209 in size are formed in the front side and the back side of the mounting blocks 203, connect fixedly connected with stopper 210 between the front inner wall of storehouse 201 and the back inner wall, rectangular through-hole has been seted up to stopper 210's inside, rectangular through-hole's width and the width looks adaptation of fly leaf 202, the equal fixedly connected with worm wheel 205 in the outside of two double-screw bolts 211, the left side inner wall of connecting storehouse 201 rotates and is connected with one end and runs through and extend to connect the storehouse 201 right side and with worm wheel 205 meshed worm 206, the right side fixedly connected with turn button of worm 206.
Wherein, firm subassembly is including seting up the constant head tank 204 in installation piece 203 one side, the flexible subassembly 208 of inner wall fixedly connected with of constant head tank 204, the locating piece 207 that closely laminates in one side fixedly connected with and the stopper 210 outside of flexible subassembly 208, flexible subassembly 208 includes expanding spring and telescopic link, the outside at the telescopic link is established to the expanding spring cover, one side of expanding spring and telescopic link and the inner wall fixed connection of constant head tank 204, the opposite side of expanding spring and telescopic link and the outside fixed connection of locating piece 207.
It should be noted that, through setting up coupling mechanism 2, quick connection and dismantlement between the adjacent drill bit have been realized to the convenience is dismantled guide's drill bit 1, second grade reamer bit 3, tertiary reamer bit 4 and scalable tool bit 5, and easy operation is swift, through having reduced the dismouting degree of difficulty, thereby can effectually improve the maintenance efficiency of staff to the drill bit.
Wherein, the quantity of installation piece 203 is 8, and is fixed with the right side of guide drill bit 1, the left and right sides of second level reamer bit 3, the left and right sides of tertiary reamer bit 4, the left and right sides of scalable tool bit 5 and the left side of stock 6 respectively.
Specifically, the mounting block 203 is inserted into the connecting bin 201 through the mounting through hole, after the positioning block 207 is primarily contacted with the limiting block 210, the telescopic assembly 208 in the positioning groove 204 can be extruded through the limiting block 210 until the limiting block 210 is contacted with the mounting block 203, the worm 206 can drive the worm wheel 205 meshed with the limiting block to rotate by rotating the turn button, the stud 211 fixed in the worm wheel 205 rotates, the two movable plates 202 can move to the opposite side due to the limitation of the limiting block 210 on the movable plates 202 until the end part of the fixing block 209 is inserted into the fixing groove, the rapid connection between the adjacent drill bits can be completed, the turn button is reversely rotated during the disassembly, the stud 211 is reversely rotated, the two movable plates 202 move to the opposite side until the end part of the fixing block 209 is separated from the inside of the fixing groove, and the mounting block 203 can be taken out from the connecting bin 201, therefore, the pilot drill bit 1, the second-stage hole expanding drill bit 3, the third-stage hole expanding drill bit 4 or the telescopic cutter head 5 are convenient to disassemble, replace or maintain.
A rotary pipe dragging mechanism is arranged on the right side of an anchor rod 6 of a casing dragging device for underground gas holes.
The rotary pipe dragging mechanism comprises a bearing 8 sleeved with the outer peripheral wall of the anchor rod 6, an inner ring of the bearing 8 is in contact with the outer peripheral wall of the anchor rod 6, a linkage ring 7 is sleeved on the outer peripheral wall of the bearing 8, an outer ring of the bearing 8 is in contact with the linkage ring 7, and a sleeve 9 is sleeved on the outer side of the linkage ring 7.
The working principle of the above embodiment is as follows:
(1) the mounting block 203 is inserted into the connecting bin 201 through the mounting through hole, after the positioning block 207 is initially contacted with the limiting block 210, the telescopic assembly 208 in the positioning groove 204 can be extruded through the limiting block 210 until the limiting block 210 is contacted with the mounting block 203, the worm 206 drives the worm wheel 205 meshed with the limiting block to rotate by rotating the rotating button, the stud 211 fixed in the worm wheel 205 rotates, the two movable plates 202 can move to the opposite side due to the limitation of the limiting block 210 on the movable plates 202, and the quick connection between the adjacent drill bits can be completed until the end part of the fixing block 209 is inserted into the fixing groove;
(2) the rotating knob is rotated reversely, the stud 211 rotates reversely, the two movable plates 202 move towards the back side until the end of the fixed block 209 is separated from the inside of the fixed groove, and the mounting block 203 can be taken out from the inside of the connecting bin 201, so that the pilot bit 1, the secondary hole expanding bit 3, the tertiary hole expanding bit 4 or the telescopic cutter head 5 can be detached, replaced or maintained conveniently.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a drilling bit of gas hole in pit, includes guide's drill bit (1), its characterized in that: the right side movable mounting of guide's drill bit (1) has second grade reamer bit (3), the right side movable mounting of second grade reamer bit (3) has third grade reamer bit (4), the right side movable mounting of third grade reamer bit (4) has scalable tool bit (5), the right side demountable mounting of scalable tool bit (5) has stock (6), all be provided with coupling mechanism (2) between guide's drill bit (1) and second grade reamer bit (3), between second grade reamer bit (3) and third grade reamer bit (4), between third grade reamer bit (4) and scalable tool bit (5) and between scalable tool bit (5) and stock (6);
the connecting mechanism (2) comprises a connecting bin (201), two mounting blocks (203) are movably mounted in the connecting bin (201), stabilizing components are arranged in the two mounting blocks (203), two studs (211) are rotatably connected between the front inner wall and the back inner wall of the connecting bin (201), two movable plates (202) are in threaded connection at the outer sides of the two studs (211), two fixed blocks (209) are fixedly connected at one opposite sides of the two movable plates (202), a limiting block (210) is fixedly connected between the front inner wall and the back inner wall of the connecting bin (201), worm wheels (205) are fixedly connected at the outer sides of the two studs (211), the inner wall of the left side of the connecting bin (201) is rotatably connected with a worm (206) of which one end penetrates through and extends to the right side of the connecting bin (201) and is meshed with the worm wheel (205).
2. A drill bit for drilling a gas hole in a well according to claim 1, wherein: firm subassembly is including offering constant head tank (204) in installation piece (203) one side, the inner wall fixedly connected with flexible subassembly (208) of constant head tank (204), locating piece (207) of the inseparable laminating in one side fixedly connected with and stopper (210) outside of flexible subassembly (208).
3. A drill bit for drilling a gas hole in a well according to claim 2, wherein: the telescopic assembly (208) comprises a telescopic spring and a telescopic rod, the telescopic spring is sleeved outside the telescopic rod, one side of the telescopic spring and the telescopic rod is fixedly connected with the inner wall of the positioning groove (204), and the other side of the telescopic spring and the telescopic rod is fixedly connected with the outside of the positioning block (207).
4. A drill bit for drilling a gas hole in a well according to claim 1, wherein: the left and right sides of connecting storehouse (201) all set up respectively with the installation through-hole of two installation piece (203) size looks adaptations, the fixed slot with fixed block (209) size looks adaptations is all seted up with the front and the back of installation piece (203).
5. A drill bit for drilling a gas hole in a well according to claim 1, wherein: the movable plate (202) is internally provided with two threaded through holes which are respectively in threaded connection with the two studs (211), and the front surface and the back surface of the movable plate (202) are opposite in internal thread direction.
6. A drill bit for drilling a gas hole in a well according to claim 1, wherein: the inside of stopper (210) has seted up the rectangle through-hole, the width of rectangle through-hole and the width looks adaptation of fly leaf (202), the right side fixedly connected with turn-button of worm (206).
7. A drill bit for drilling a gas hole in a well according to claim 1, wherein: the stud (211) is positioned at the bottom of the mounting block (203).
8. A casing pulling device with a drill bit according to claim 1, characterized in that: the right side of the anchor rod (6) is provided with a rotary pipe dragging mechanism.
9. The trailing cannula device of claim 8, wherein: rotatory pipe mechanism that drags includes with bearing (8) that stock (6) periphery wall cup jointed, the inner circle of bearing (8) contacts with the periphery wall of stock (6), the periphery wall of bearing (8) has cup jointed interlock lasso (7), the outer lane of bearing (8) contacts with interlock lasso (7), sleeve pipe (9) have been cup jointed in the outside of interlock lasso (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221333276.8U CN217439957U (en) | 2022-05-31 | 2022-05-31 | Drilling bit and dragging sleeve device for underground gas hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221333276.8U CN217439957U (en) | 2022-05-31 | 2022-05-31 | Drilling bit and dragging sleeve device for underground gas hole |
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| Publication Number | Publication Date |
|---|---|
| CN217439957U true CN217439957U (en) | 2022-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221333276.8U Active CN217439957U (en) | 2022-05-31 | 2022-05-31 | Drilling bit and dragging sleeve device for underground gas hole |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115822464A (en) * | 2022-12-23 | 2023-03-21 | 华北水利水电大学 | Geological exploration reaming device |
| CN117161446A (en) * | 2023-10-10 | 2023-12-05 | 东台升华工具有限公司 | Conveniently-detached drill bit for hardware machining drilling machine |
-
2022
- 2022-05-31 CN CN202221333276.8U patent/CN217439957U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115822464A (en) * | 2022-12-23 | 2023-03-21 | 华北水利水电大学 | Geological exploration reaming device |
| CN117161446A (en) * | 2023-10-10 | 2023-12-05 | 东台升华工具有限公司 | Conveniently-detached drill bit for hardware machining drilling machine |
| CN117161446B (en) * | 2023-10-10 | 2024-05-28 | 东台升华工具有限公司 | Conveniently-detached drill bit for hardware machining drilling machine |
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