CN111911090A - Drill rod rear-mounted drilling machine - Google Patents
Drill rod rear-mounted drilling machine Download PDFInfo
- Publication number
- CN111911090A CN111911090A CN202010777754.3A CN202010777754A CN111911090A CN 111911090 A CN111911090 A CN 111911090A CN 202010777754 A CN202010777754 A CN 202010777754A CN 111911090 A CN111911090 A CN 111911090A
- Authority
- CN
- China
- Prior art keywords
- output shaft
- gear
- drill rod
- drilling machine
- reducer
- Prior art date
- 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- Withdrawn
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 40
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 40
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 210000000078 claw Anatomy 0.000 claims description 10
- 239000003245 coal Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/03—Couplings; joints between drilling rod or pipe and drill motor or surface drive, e.g. between drilling rod and hammer
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/16—Connecting or disconnecting pipe couplings or joints
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Drilling And Boring (AREA)
Abstract
The invention relates to the technical field of drilling machines, in particular to a drilling machine with a drill rod installed afterwards, and provides a drilling machine which can replace and assemble a drill rod from the rear of a drill floor, and the technical scheme is as follows: the drilling machine is characterized in that a reducer output shaft of the drilling machine is a hollow shaft penetrating through the whole reducer, the inner diameter of the reducer output shaft is not smaller than the diameter of the drilling rod, the drilling rod is fixedly connected with the inner wall of the reducer output shaft, the tail end of the drilling rod is a prism, a fastening mechanism is further arranged between the drilling rod and the reducer output shaft, the center of the fastening mechanism is a polygonal through hole, and the prism is fixedly arranged in the polygonal through hole.
Description
Technical Field
The invention relates to the technical field of drilling machines, in particular to a drilling machine with a rear-mounted drill rod.
Background
In coal mining, a drilling machine is one of the common mechanical equipments. The drilling rod of the existing drilling machine is arranged at the front part of the drilling platform, and when the drilling machine works, the drilling rod is close to a coal seam to drill. When the drill rod needs to be replaced, the drill rig retreats to withdraw the drill rod from the coal bed, workers operate between the coal bed working face and the drill rig, on one hand, the potential safety hazard is large, and on the other hand, the operation space is narrow.
In addition, the drill rod has large volume and high quality, the underground operation environment is limited, special replacing equipment is not needed, and the drill rod needs to be replaced by a plurality of people in a combined force, so that the drill rod is very laborious and inconvenient to replace.
Disclosure of Invention
The invention overcomes the defects in the prior art and provides a drilling machine which can replace and assemble a drill rod from the rear of a drill floor.
In order to solve the technical problems, the invention adopts the technical scheme that:
the drilling machine comprises a drilling rod and a rear-mounted drilling machine, wherein a reducer output shaft of the drilling machine is a hollow shaft penetrating through the whole reducer, the inner diameter of the reducer output shaft is not smaller than the diameter of the drilling rod, and the drilling rod is fixedly connected with the inner wall of the reducer output shaft.
The drilling rod end is prismatic, still be provided with fastening device between drilling rod and the reduction gear output shaft, fastening device center is the polygon through-hole, prismatic fixed setting is in the polygon through-hole.
And a cylindrical step is coaxially fixed on the drill rod in front of the prism, and the diameter of the cylindrical step is larger than that of the outer circle of the polygonal through hole.
At least one end of the output shaft of the speed reducer extends to 10-20 cm of the shell of the speed reducer.
The reduction gear still includes: the driving gear is coaxially fixed with an output shaft of the motor, the driven gear is movably connected with a shell of the speed reducer, the driven gear can rotate around the central line of the driven gear, and the driving gear is meshed with the driven gear.
The positioning screw hole is formed in the output shaft of the speed reducer, the thread through hole is formed in the fastening mechanism, the thread through hole is matched with the positioning screw hole, the thread blind hole is formed in the prism, the thread blind hole is matched with the thread through hole, and fastening screws are screwed into the positioning screw hole, the thread through hole and the thread blind hole.
The fastening mechanism includes: the fastening shell is of an annular structure, the disc gear is movably arranged in the fastening shell, a through hole is formed in the middle of the disc gear, the disc gear can rotate around the center line of the disc gear, a plurality of teeth are arranged on one side end face of the disc gear and are circumferentially arranged, spiral linear teeth are arranged on the other side end face of the disc gear, one side end face of the disc gear is meshed with the small bevel gear, one end of the small bevel gear is arranged on the outer side of the fastening shell, the small bevel gear is connected with the fastening shell through a bearing, a rack is fixed on one side end face of the clamping jaw, at least three sliding grooves are formed in the fastening shell, one clamping jaw is movably arranged in each sliding groove, and the clamping jaws are further meshed with the other side end face of the disc gear.
Compared with the prior art, the invention has the following beneficial effects.
The speed reducer is arranged in a penetrating mode through an output shaft, and the drill rod is arranged in the output shaft in a penetrating mode, so that the drill rod can move in a through hole of the output shaft along the axis direction, and the drill rod can be detached from two ends of the output shaft;
the cross section of the through hole of the output shaft is in a polygonal shape, the cross section of the drill rod is the same as that of the through hole, and the polygonal structure can effectively prevent the drill rod from rotating relatively in the output shaft.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the installation of the speed reducer and the drill rod of the invention.
Fig. 3 is a schematic cross-sectional view of the speed reducer of the present invention.
Fig. 4 is a schematic cross-sectional view of a fastening mechanism of the present invention.
Fig. 5 is a front schematic view of the fastening mechanism of the present invention.
Fig. 6 is a schematic structural view of one side end face of the disc gear of the present invention.
Fig. 7 is a schematic view of the structure of the other end face of the disc gear of the present invention.
In the figure: 1 is reducer output shaft, 2 is drilling rod, 3 is fastening mechanism, 4 is driving gear, 5 is driven gear, 21 is prism, 31 is fastening shell, 32 is disc gear, 33 is bevel pinion, 34 is the clamping grab.
Detailed Description
The following is a further description with reference to specific examples.
As shown in fig. 1 to 7: according to the drilling rod rear-mounted drilling machine, the output shaft 1 of the speed reducer of the drilling machine is a hollow shaft penetrating through the whole speed reducer, the inner diameter of the output shaft 1 of the speed reducer is not smaller than the diameter of the drilling rod 2, and the drilling rod 2 is fixedly connected with the inner wall of the output shaft 1 of the speed reducer.
The end of the drill rod 2 is a prism 21, a fastening mechanism 3 is further arranged between the drill rod 2 and the output shaft 1 of the speed reducer, the center of the fastening mechanism 3 is a polygonal through hole, and the prism 21 is fixedly arranged in the polygonal through hole.
A cylindrical step 22 is coaxially fixed on the drill rod 2 in front of the prism 21, and the diameter of the cylindrical step 22 is larger than that of the circumscribed circle of the polygonal through hole.
At least one end of the output shaft 1 of the speed reducer extends to 10-20 cm of the shell of the speed reducer.
The reduction gear still includes: the driving gear 4 is coaxially fixed with an output shaft of the motor, the driven gear 5 is movably connected with a shell of the speed reducer, the driven gear 5 can rotate around the central line of the driven gear 5, and the driving gear 4 is meshed with the driven gear 5.
The speed reducer output shaft 1 located outside the speed reducer is provided with a positioning threaded hole, the fastening mechanism 3 is provided with a threaded through hole matched with the positioning threaded hole, the prism 21 is provided with a threaded blind hole matched with the threaded through hole, and fastening screws are screwed in the positioning threaded hole, the threaded through hole and the threaded blind hole.
The fastening mechanism 3 includes: a fastening shell 31, a disc gear 32, a small bevel gear 33 and a clamping claw 34, wherein the whole fastening shell 31 is of an annular structure, the disc gear 32 is movably arranged in the fastening shell 31, and a through hole is arranged in the middle of the disc gear 32, the disc gear 32 can rotate around the central line thereof, a plurality of teeth are arranged on the end surface of one side of the disc gear 32 and are arranged in a circumference way, a spiral-shaped tooth is arranged on the end surface of the other side of the disc gear 32, one side end face of the disc gear 32 is meshed with a small bevel gear 33, one end of the small bevel gear 33 is arranged outside the fastening shell 31, the small bevel gear 33 is connected with the fastening shell 31 through a bearing, a rack is fixed on the end face of one side of the clamping claw 34, the fastening shell 31 is provided with at least three sliding grooves, each sliding groove is movably provided with a clamping claw 34, and the clamping claws 34 are also meshed with the end face of the other side of the disc gear 32.
The end of the clamping claw 34 is also provided with a V-shaped groove, and the V-shaped groove is used for clamping the prism 21.
The specific operation mode of the invention is as follows:
the worker controls the motor to be started through the console, and the motor drives the reducer output shaft 1 to rotate so as to drive the drill rod to rotate; when the drill rod needs to be replaced, a worker places the prism 21 among the clamping claws 34 of the fastening mechanism 3, screws the small bevel gear 33, drives the clamping claws 34 to fix the prism 21, and the purpose of quick replacement is achieved.
The above embodiments are merely illustrative of the principles of the present invention and its effects, and do not limit the present invention. It will be apparent to those skilled in the art that modifications and improvements can be made to the above-described embodiments without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications or changes be made by those skilled in the art without departing from the spirit and technical spirit of the present invention, and be covered by the claims of the present invention.
Claims (5)
1. The drilling machine with the rear-mounted drill rod is characterized in that a reducer output shaft (1) of the drilling machine is a hollow shaft penetrating through the whole reducer, the inner diameter of the reducer output shaft (1) is not smaller than the diameter of the drill rod (2), and the drill rod (2) is fixedly connected with the inner wall of the reducer output shaft (1).
2. The drill rod afterloading drilling machine as claimed in claim 1, characterized in that the end of the drill rod (2) is a prism (21), a fastening mechanism (3) is further arranged between the drill rod (2) and the reducer output shaft (1), the center of the fastening mechanism (3) is a through hole, and the prism (21) is fixedly arranged in the through hole.
3. The drill pipe afterloading drilling machine as claimed in claim 2, characterized in that at least one end of the reducer output shaft (1) extends to 10-20 cm of the reducer housing.
4. The drill rod afterloading drilling machine as set forth in claim 3, wherein the speed reducer further comprises: the driving gear (4) is coaxially fixed with a motor output shaft, the driven gear (5) is coaxially and fixedly connected with a reducer output shaft (1), the reducer output shaft (1) is movably connected with a reducer shell, the driven gear (5) can rotate around the central line of the driven gear (5), and the driving gear (4) is meshed with the driven gear (5).
5. The drill rod afterloading drilling machine according to claim 4, characterized in that the fastening mechanism (3) comprises: the fastening shell (31) is of an annular structure, the fastening shell (31) is coaxially and fixedly connected with a reducer output shaft (1), the disc gear (32) is movably arranged in the fastening shell (31), a through hole is formed in the middle of the disc gear (32), the disc gear (32) can rotate around the central line of the disc gear, a plurality of teeth are arranged on the end face of one side of the disc gear (32) and are arranged in a circumferential mode, spiral linear teeth are arranged on the end face of the other side of the disc gear (32), the end face of one side of the disc gear (32) is meshed with the small bevel gear (33), one end of the small bevel gear (33) is arranged on the outer side of the fastening shell (31), and the small bevel gear (33) is connected with the fastening shell (31) through a bearing, a rack is fixed on the end face of one side of each clamping claw (34), at least three sliding grooves are formed in the fastening shell (31), each clamping claw (34) is movably arranged in each sliding groove, and each clamping claw (34) is meshed with the end face of the other side of the disc type gear (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010777754.3A CN111911090A (en) | 2020-08-05 | 2020-08-05 | Drill rod rear-mounted drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010777754.3A CN111911090A (en) | 2020-08-05 | 2020-08-05 | Drill rod rear-mounted drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111911090A true CN111911090A (en) | 2020-11-10 |
Family
ID=73287227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010777754.3A Withdrawn CN111911090A (en) | 2020-08-05 | 2020-08-05 | Drill rod rear-mounted drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111911090A (en) |
-
2020
- 2020-08-05 CN CN202010777754.3A patent/CN111911090A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201110 |