CN211173987U - Reducing guider of drilling tool - Google Patents
Reducing guider of drilling tool Download PDFInfo
- Publication number
- CN211173987U CN211173987U CN201921656588.0U CN201921656588U CN211173987U CN 211173987 U CN211173987 U CN 211173987U CN 201921656588 U CN201921656588 U CN 201921656588U CN 211173987 U CN211173987 U CN 211173987U
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- CN
- China
- Prior art keywords
- central body
- connecting rod
- raceway
- rolling bearing
- drilling tool
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 238000005096 rolling process Methods 0.000 claims abstract description 31
- 230000000712 assembly Effects 0.000 claims abstract description 16
- 238000000429 assembly Methods 0.000 claims abstract description 16
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Abstract
The utility model discloses a reducing guider of a drilling tool, which comprises a cylindrical central body, wherein a convex ring with the same axis is axially extended on the upper part of the outer wall of the central body, and an upper raceway and a lower raceway of an annular structure which are respectively positioned above and below the convex ring are encircled outside the central body; a plurality of roller assemblies are uniformly distributed between the upper raceway and the lower raceway at intervals along the circumferential direction of the central body, and the roller assemblies are respectively in rolling fit with the upper raceway and the lower raceway; each connecting bracket is provided with a swing arm component; the central body is provided with a rolling bearing and at least two telescopic mechanisms which are positioned below the lower raceway, the fixed end of each telescopic mechanism is fixedly connected to the lower part of the central body, the extending end is connected with the inner ring of the rolling bearing through a connecting mechanism, the outer ring of the rolling bearing is hinged with one end of an inclined connecting rod, and the other end of the inclined connecting rod is hinged to the lower connecting rod. The utility model discloses to the pit shaft of different diameters, can realize the reducing, satisfy different engineering needs, easy and simple to handle, the construction is stable, and the direction effect is better.
Description
Technical Field
The utility model belongs to the technical field of oil, colliery, exploration, mine are with tunnelling mechanical equipment technique and specifically relates to a reducing director of drilling tool is related to.
Background
The drilling machine is commonly used in underground construction machinery, and in the construction process of the drilling machine, the drilling tool generally needs to be positioned so as to ensure the construction quality. At present, adopt the rig drilling in-process, for avoiding the drilling tool system to produce and rock, generally all be equipped with the drilling tool director, present drilling tool director is most for oil cylinder drive's single-rod swing arm mechanism, be provided with little gyro wheel on the swing arm, roll on the wall of a well through the gyro wheel, realize the stability of drill bit, the director of this kind of structure is very little with the contact surface of the wall of a well, the direction effect is very poor, in addition there is sunken or bellied the wall of a well, block easily and die, roll inefficacy, finally lead to the damage of director, seriously influence the progress of construction.
Disclosure of Invention
In order to solve the problems, the utility model aims at providing a reducing director of drilling tool that the reliability is high, the use is nimble, and its guidance quality can be good, and is big with wall of a well area of contact, can make the drilling machine that has this drilling tool be used for the construction of different diameter wellbores.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a reducing guider of a drilling tool comprises a cylindrical central body, wherein a convex ring with the same axis is axially extended from the upper part of the outer wall of the central body, an upper raceway and a lower raceway which are respectively positioned above and below the convex ring are arranged on the central body, and the upper raceway and the lower raceway are both of annular structures and are arranged outside the central body in a surrounding manner and have a distance with the upper raceway and the lower raceway; a plurality of roller assemblies are uniformly distributed between the upper roller path and the lower roller path at intervals along the circumferential direction of the central body, each roller assembly comprises a central shaft, rollers are rotatably arranged on the upper and lower parts of the central shaft, the rolling surfaces of the rollers are contacted with the outer circular surface of the convex ring of the central body, ball heads are fixedly arranged on the outer end surfaces of the two rollers, and the ball heads of the two rollers are respectively in rolling fit with the upper roller path and the lower roller path; the roller assemblies are arranged in a group, two roller assemblies in each group are arranged adjacently, a connecting support is arranged on each roller assembly and connected with the central shafts of the two roller assemblies, and the connecting supports connected with the roller assemblies are connected through bolts in sequence to form an annular structure; each connecting support is provided with a swing arm assembly, each swing arm assembly comprises an upper connecting rod, a lower connecting rod and an arc-shaped boot plate, one end of each of the upper connecting rod and the lower connecting rod is hinged to the connecting support, the other end of each of the upper connecting rod and the lower connecting rod is hinged to the arc-shaped boot plate, and the upper connecting rods and the lower connecting rods are arranged in parallel and are equal in length; the central body is provided with a rolling bearing and a telescopic mechanism which are positioned below the lower raceway, the telescopic mechanisms are two symmetrically distributed or a plurality of telescopic mechanisms are uniformly distributed at intervals along the circumferential direction of the central body, the fixed end of each telescopic mechanism is fixedly connected to the lower part of the central body, the extending end of each telescopic mechanism is connected with the inner ring of the rolling bearing through a connecting mechanism, the outer ring of the rolling bearing is hinged with one end of an inclined connecting rod, and the other end of the inclined connecting rod is hinged on the lower connecting rod; the center of the central body is provided with a longitudinally penetrating channel.
Furthermore, the top and the bottom of the central body are respectively provided with an upper flange and a lower flange, and the upper flange and the lower flange are coaxially arranged with the central body, connected with a drill rod through the upper flange and connected with a drilling tool through the lower flange.
Furthermore, the upper part of the connecting bracket is also provided with a limiting block.
Further, the telescopic mechanism adopts a hydraulic cylinder or an air cylinder.
Furthermore, the connecting mechanism comprises a hollow cylindrical sleeve and an L-shaped connecting plate, the hollow cylindrical sleeve is sleeved outside the central body, the bottom of the hollow cylindrical sleeve is fixedly mounted on the lower flange, the rolling bearing is sleeved outside the hollow cylindrical sleeve, the extending end of the telescopic mechanism is hinged to one end of the L-shaped connecting plate, the other end of the L-shaped connecting plate is connected with the inner ring of the rolling bearing through a bolt, a vertical long groove is formed in the outer wall of the hollow cylindrical sleeve, and a convex strip which is clamped in the vertical long groove and can slide is arranged on the side wall of the L-shaped connecting plate corresponding to the.
Furthermore, the bottom of the L-shaped connecting plate is also provided with a moving wheel which is attached to the inner wall of the hollow cylindrical sleeve.
Due to the adoption of the technical scheme, the utility model discloses have following superiority:
the variable-diameter guider of the drilling tool is simple in structure, reasonable and novel in design, ingenious in conception, easy to manufacture, simple and convenient to operate, stable in construction, large in contact area, capable of enabling the arc shoe plates to be tightly propped against a well wall without gaps and to be in contact with the cambered surface of the well wall, capable of avoiding collapse of the well wall when drilling into an unstable stratum and good in guiding effect; the arc-shaped boot plate is rotationally connected with the central body of the guider through the swing arm assembly, and even if the boot plate is clamped by a well wall, the central body can still work normally, so that the guider cannot be damaged due to sudden clamping; aiming at the mineshafts with different diameters, the reducing can be realized by adjusting the telescopic amount of the telescopic mechanism, and different engineering requirements can be met; the drilling tool is firm and durable, is convenient to install and maintain, effectively prolongs the service life of the drilling tool, and has good popularization and application values.
Drawings
Fig. 1 is a schematic structural view of the reducing guide of the drilling tool of the present invention in an extended state;
FIG. 2 is an enlarged view of section I of FIG. 1;
FIG. 3 is a schematic sectional view taken along line A-A of FIG. 1;
FIG. 4 is a schematic structural view of the reducing guide of the drilling tool of the present invention in a contracted state;
FIG. 5 is an enlarged view of section II of FIG. 4;
in the figure, 1-an upper flange, 2-an upper raceway, 3-a central shaft, 4-a first roller, 5-a connecting bracket, 6-an upper connecting rod, 7-an arc shoe plate, 8-a lower connecting rod, 9-a second roller, 10-a convex ring, 11-an inclined connecting rod, 12-a lower raceway, 13-a rolling bearing, 14-a telescopic mechanism, 15-a lower flange, 16-a limiting block, 17-a central body, 18-a channel, 19-L-shaped connecting plates, 20-a hollow cylindrical sleeve, 21-a moving wheel and 4.1-a ball head.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1, 2, 3, 4, and 5, the variable diameter guide of the drilling tool includes a cylindrical central body 17, a concentric convex ring 10 axially extends from the upper portion of the outer wall of the central body, an upper raceway 2 and a lower raceway 12 respectively located above and below the convex ring are provided on the central body, the upper raceway and the lower raceway are both annular structures and are respectively arranged outside the central body in a surrounding manner through a first annular connecting plate and a second annular connecting plate and have a distance with the central body, the inner annular surfaces of the first annular connecting plate and the second annular connecting plate are fixed on the outer wall of the central body, the upper raceway is located at the bottom of the first annular connecting plate and is fastened with the first annular connecting plate through bolts, and the lower raceway is located at the top of the second annular connecting plate; a plurality of roller assemblies are uniformly distributed between the upper raceway 2 and the lower raceway 12 at intervals along the circumferential direction of the central body 17, each roller assembly comprises a central shaft 3, the upper part and the lower part of the central shaft are respectively and rotatably provided with a first roller 4 and a second roller 9, the rolling surfaces of the first roller and the second roller are contacted with the outer circular surface of the convex ring 10 on the central body 17, the outer end surfaces of the two rollers are respectively and fixedly provided with a ball head 4.1, and the ball heads 4.1 of the two rollers are respectively in rolling fit with the upper raceway 2 and the lower raceway 12; the guide device comprises a plurality of roller assemblies, wherein each roller assembly is divided into two groups, two roller assemblies in each group are arranged adjacently, a connecting support 5 is arranged on each roller assembly and is connected with a central shaft 3 of each roller assembly, and the connecting supports connected with the plurality of roller assemblies are connected through bolts in sequence to form an annular structure, so that the structure of the guide device is more stable; each connecting bracket 5 is provided with a swing arm assembly, each swing arm assembly comprises an upper connecting rod 6, a lower connecting rod 8 and an arc-shaped boot plate 7, one end of each of the upper connecting rod and the lower connecting rod is hinged to the connecting bracket, the other end of each of the upper connecting rod and the lower connecting rod is hinged to the arc-shaped boot plate, the upper connecting rod and the lower connecting rod are arranged in parallel up and down and have equal length, and each of the upper connecting rod and the lower connecting rod consists of two connecting rods which are arranged in parallel; the central body 17 is provided with rolling bearings 13 and telescopic mechanisms 14 which are positioned below the lower raceway 12, the telescopic mechanisms are two telescopic mechanisms which are symmetrically distributed along the axis of the central body or a plurality of telescopic mechanisms which are uniformly distributed at intervals along the circumferential direction of the central body, the fixed end of each telescopic mechanism 14 is fixedly connected to the lower part of the central body 17, the extending end of each telescopic mechanism is upward and is connected with the inner ring of the corresponding rolling bearing 13, the outer ring of each rolling bearing is fixedly provided with an ear plate, the ear plate is hinged to one end of the inclined connecting rod 11, and the other end of the; the central body 17 is centrally provided with a passage 18 extending longitudinally therethrough.
The top and the bottom of the central body 17 are respectively provided with an upper flange 1 and a lower flange 15, and the upper flange and the lower flange are coaxially arranged with the central body, connected with a drill rod through the upper flange and connected with a drilling tool through the lower flange.
The above-mentioned telescopic mechanism 14 adopts a hydraulic cylinder or an air cylinder.
The connecting mechanism comprises a hollow cylindrical sleeve 20 and an L-shaped connecting plate 19, the hollow cylindrical sleeve is sleeved outside a central body, the bottom of the hollow cylindrical sleeve is fixedly installed on a lower flange, a rolling bearing 13 is sleeved outside the hollow cylindrical sleeve 20, the extending end of the telescopic mechanism 14 is hinged with one end of the L-shaped connecting plate 19, the other end of the L-shaped connecting plate is connected with an inner ring of the rolling bearing through a bolt, a vertical long groove is formed in the outer wall of the hollow cylindrical sleeve, and a convex strip which is clamped in the vertical long groove and can slide is arranged on the side wall of the L-shaped connecting plate corresponding to the vertical long groove, so that the L-shaped.
The bottom of the L-shaped connecting plate 19 is also provided with a moving wheel 21 which is attached to the inner wall of the hollow cylindrical sleeve 20, so that the L-shaped connecting plate can slide up and down along the hollow cylindrical sleeve more conveniently.
The utility model discloses the reducing director of drilling tool, it is along the outer circumferencial direction of cylindric centrum 17, and from interior to exterior is telescopic machanism 14, hollow cylindrical sleeve 20, antifriction bearing 13 in proper order.
The utility model discloses a reducing director of drilling tool, its working process is: when the drilling tool works, the extending end of the telescopic mechanism 14 extends upwards to drive the rolling bearing 13 to move upwards, so that the inclined connecting rod 11, the upper connecting rod 6, the lower connecting rod 8 and the arc-shaped shoe plate 7 are driven to move, when the arc-shaped shoe plate 7 moves to be equal to the inner diameter of a well wall, the telescopic mechanism 14 keeps still, the central body 1 rotates along with the drilling tool system, and the arc-shaped shoe plate 7 plays a role in guiding to prevent the drilling tool system from deviating from the center of a shaft; the arc-shaped shoe plate 7 and the central body 17 can rotate relatively, when a bulge is arranged on the well wall to clamp the arc-shaped shoe plate, the arc-shaped shoe plate 7, the upper connecting rod 6, the lower connecting rod 8, the inclined connecting rod 11, the outer ring of the rolling bearing 13 and the connecting bracket 5 are not moved relative to the well wall, the first roller 4 and the second roller 9 of the roller assembly rotate, meanwhile, the ball heads 4.1 on the two rollers roll along the upper roller path 2 and the lower roller path 12 respectively, the two rollers revolve around the central body while rotating relative to the central body 17, the telescopic mechanism 14 and the inner ring of the rolling bearing 13 continue to rotate, and at the moment, the guiding effect can still be achieved.
The outer end of the upper part of the connecting bracket 5 is also provided with a limiting block 16, and when the telescopic mechanism 14 breaks down, the upper connecting rod 6 is limited to turn upwards after reaching the horizontal position.
Aiming at mineshafts with different diameters, reducing can be realized only by adjusting the extension amount of the extension end of the extension mechanism 14, and in the swinging process of the connecting rod, the direction of the arc shoe plate is kept unchanged, so that construction of mineshafts with any diameter in the reducing range is realized, and different engineering requirements can be met.
The above is only the preferred embodiment of the present invention, not the limitation of the present invention, without departing from the spirit and scope of the present invention, all should belong to the patent protection scope of the present invention in the equal variation and modification made by the claims of the present invention.
Claims (6)
1. A reducing guider of a drilling tool is characterized in that: the rolling ball rolling device comprises a cylindrical central body, wherein a convex ring with the same axis is axially extended from the upper part of the outer wall of the central body, an upper raceway and a lower raceway are arranged on the central body and are respectively positioned above and below the convex ring, and the upper raceway and the lower raceway are both of annular structures and are arranged outside the central body in a surrounding manner and have a distance with the central body; a plurality of roller assemblies are uniformly distributed between the upper roller path and the lower roller path at intervals along the circumferential direction of the central body, each roller assembly comprises a central shaft, rollers are rotatably arranged on the upper and lower parts of the central shaft, the rolling surfaces of the rollers are contacted with the outer circular surface of the convex ring of the central body, ball heads are fixedly arranged on the outer end surfaces of the two rollers, and the ball heads of the two rollers are respectively in rolling fit with the upper roller path and the lower roller path; the roller assemblies are arranged in a group, two roller assemblies in each group are arranged adjacently, a connecting support is arranged on each roller assembly and connected with the central shafts of the two roller assemblies, and the connecting supports connected with the roller assemblies are connected through bolts in sequence to form an annular structure; each connecting support is provided with a swing arm assembly, each swing arm assembly comprises an upper connecting rod, a lower connecting rod and an arc-shaped boot plate, one end of each of the upper connecting rod and the lower connecting rod is hinged to the connecting support, the other end of each of the upper connecting rod and the lower connecting rod is hinged to the arc-shaped boot plate, and the upper connecting rods and the lower connecting rods are arranged in parallel and are equal in length; the central body is provided with a rolling bearing and a telescopic mechanism which are positioned below the lower raceway, the telescopic mechanisms are two symmetrically distributed or a plurality of telescopic mechanisms are uniformly distributed at intervals along the circumferential direction of the central body, the fixed end of each telescopic mechanism is fixedly connected to the lower part of the central body, the extending end of each telescopic mechanism is connected with the inner ring of the rolling bearing through a connecting mechanism, the outer ring of the rolling bearing is hinged with one end of an inclined connecting rod, and the other end of the inclined connecting rod is hinged on the lower connecting rod; the center of the central body is provided with a longitudinally penetrating channel.
2. The drill reducing guide as set forth in claim 1, wherein: the top and the bottom of the central body are respectively provided with an upper flange and a lower flange, the upper flange and the lower flange are coaxially arranged with the central body, and are connected with a drill rod through the upper flange and connected with a drilling tool through the lower flange.
3. The drill reducing guide as set forth in claim 1, wherein: the upper part of the connecting bracket is also provided with a limiting block.
4. The drill reducing guide as set forth in claim 1, wherein: the telescopic mechanism adopts a hydraulic cylinder or an air cylinder.
5. The reducing guide of the drilling tool as claimed in claim 1, wherein the connecting mechanism comprises a hollow cylindrical sleeve and an L-shaped connecting plate, the hollow cylindrical sleeve is sleeved outside the central body, the bottom of the hollow cylindrical sleeve is fixedly mounted on the lower flange, the rolling bearing is sleeved outside the hollow cylindrical sleeve, the extending end of the telescopic mechanism is hinged to one end of the L-shaped connecting plate, the other end of the L-shaped connecting plate is connected with the inner ring of the rolling bearing through a bolt, the outer wall of the hollow cylindrical sleeve is provided with a vertical elongated slot, and a convex strip which is clamped in the vertical elongated slot and can slide is arranged on the side wall of the L-shaped connecting plate corresponding.
6. The reducing guide of drilling tool as set forth in claim 5, wherein the L-shaped connecting plate has a moving wheel at its bottom, and the moving wheel is attached to the inner wall of the hollow cylindrical sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921656588.0U CN211173987U (en) | 2019-09-30 | 2019-09-30 | Reducing guider of drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921656588.0U CN211173987U (en) | 2019-09-30 | 2019-09-30 | Reducing guider of drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211173987U true CN211173987U (en) | 2020-08-04 |
Family
ID=71795930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921656588.0U Withdrawn - After Issue CN211173987U (en) | 2019-09-30 | 2019-09-30 | Reducing guider of drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211173987U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630189A (en) * | 2019-09-30 | 2019-12-31 | 中信重工机械股份有限公司 | Reducing guider of drilling tool |
| CN110630189B (en) * | 2019-09-30 | 2024-05-10 | 中信重工机械股份有限公司 | Reducing guide of drilling tool |
-
2019
- 2019-09-30 CN CN201921656588.0U patent/CN211173987U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630189A (en) * | 2019-09-30 | 2019-12-31 | 中信重工机械股份有限公司 | Reducing guider of drilling tool |
| CN110630189B (en) * | 2019-09-30 | 2024-05-10 | 中信重工机械股份有限公司 | Reducing guide of drilling tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200804 Effective date of abandoning: 20240510 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200804 Effective date of abandoning: 20240510 |