CN111502537A - Rotary impact composite drilling device - Google Patents
Rotary impact composite drilling device Download PDFInfo
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- CN111502537A CN111502537A CN202010468892.3A CN202010468892A CN111502537A CN 111502537 A CN111502537 A CN 111502537A CN 202010468892 A CN202010468892 A CN 202010468892A CN 111502537 A CN111502537 A CN 111502537A
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- main frame
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- 238000005553 drilling Methods 0.000 title claims abstract description 53
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 12
- 238000009527 percussion Methods 0.000 claims description 11
- 238000004146 energy storage Methods 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000011435 rock Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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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
- E21B6/00—Drives for drilling with combined rotary and percussive action
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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
- E21B12/00—Accessories for drilling tools
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a rotary impact composite drilling device, which comprises a main frame, wherein a hollow shaft and a driving mechanism are arranged in the main frame, a drill bit is sleeved at the lower end of the hollow shaft, a large gear is sleeved at the radial outer side of the hollow shaft, speed reducers are connected below the driving mechanism, the output ends of the two speed reducers are respectively provided with a small gear, an impactor is guided and arranged at the upper part of the hollow shaft, the impactor comprises a horizontally arranged guide disc and a hammer core arranged in the middle of the guide disc, the lower end of the hammer core is provided with a hammer head, a downwardly extending guide frame is arranged on the guide disc, the lower end of the guide frame is provided with a guide part, the guide part is guided and matched with an inclined guide rail on the outer side surface or the inner side surface or the upper end surface of the hollow shaft, and the top end of each inclined guide rail, The maintenance and use cost is low.
Description
Technical Field
The invention relates to the technical field of rock stratum drilling equipment, in particular to a rotary impact composite drilling device.
Background
In the rock stratum drilling construction, only the drilling effect of a rotary drilling machine is limited, especially when complex rock stratum is encountered, the auxiliary impact drilling is needed, namely the rotary drilling and the impact drilling alternate operation is adopted to complete the drilling operation of the complex rock stratum, the drill bit in the prior art can realize the combined operation of the rotary drilling and the impact drilling, and the drilling operation of the complex rock stratum is greatly facilitated, for example, the Chinese invention patent document with the authorization publication number of CN103277044B provides an SD L pile driving method and a pile drilling machine specially used for implementing the method, the drilling machine comprises a rack, the rack is provided with a power head which moves in the up-and-down direction, the power head is connected with a working drill rod in a transmission way, the lower end of the working drill rod is provided with the drill bit, a mechanical impactor for applying vibration impact force to the drill bit is arranged above the drill bit, the mechanical impactor is lifted in the vertical direction by a pull rope controlled by a driving mechanism to carry out impact force storage, and when the drilling operation is carried out, the drill bit is rotated and is impacted and drilled by the impact drilling force of the impactor while the cutting operation is facilitated.
However, the above-described device still has certain problems: the rotary part and the impact part which drive the drill bit to drill are respectively controlled by different driving mechanisms, the double-power-source combination has complex structure principle and higher manufacturing, maintenance and use cost, and simultaneously, when in actual operation, the punching drilling function of the drill bit can be realized only by respectively starting two power sources, thereby reducing the operation efficiency to a certain extent.
Disclosure of Invention
The invention aims to provide a rotary impact composite drilling device, which is used for solving the technical problems of complex structural principle and high manufacturing, maintaining and using costs caused by the fact that a drill bit is controlled by a double power source combination in the prior art.
In order to achieve the purpose, the rotary impact composite drilling device provided by the invention adopts the following technical scheme:
the rotary impact composite drilling device comprises a main frame, wherein a hollow shaft extending up and down and driving mechanisms symmetrically arranged on two sides of the hollow shaft are arranged in the main frame, a drill bit is sleeved at the lower end of the hollow shaft, a large gear is sleeved on the radial outer side of the hollow shaft through a key sleeve, speed reducers are connected below the two driving mechanisms, output ends of the two speed reducers are respectively provided with a small gear, the two small gears are symmetrically arranged on two sides of the large gear and are in transmission connection with the large gear, and when the driving mechanisms are started, the hollow shaft is driven to rotate through gear transmission, so that rotary drilling;
the upper part of the hollow shaft is provided with an impactor in a guiding way, the impactor comprises a horizontally arranged guide disc and a hammer core which is arranged in the middle of the guide disc and extends downwards through the hollow shaft, the lower end of the hammer core is provided with a hammer head, a guide frame extending downwards is arranged on the guide disc and positioned at the outer side of the hammer core, a guide piece is arranged at the lower end of the guide frame and is in guide fit with the outer side surface or the inner side surface or the upper end surface of the hollow shaft, a plurality of inclined guide rails which extend obliquely from bottom to top are arranged on the outer side surface or the inner side surface or the upper end surface of the hollow shaft in the circumferential direction, the top end of each inclined guide rail is communicated with the bottom ends of the adjacent inclined guide rails through a cliff type vertically extending straight guide rail, so that the hollow shaft drives the drill bit to rotate and drill, simultaneously drives the guide piece to move upwards to the top end of the inclined guide rail and drives the hammer core to move upwards, the guide piece freely falls from the straight guide rail, and the hammer core moves downwards to impact the drill bit through the hammer head;
the stroke of inclined guide rail and straight guide rail satisfies the hammer core and can contact and strike the demand of drill bit down when the bottom.
The rotary impact composite drilling device provided by the invention has the beneficial effects that: when the rock stratum drilling operation, especially the drilling operation of complex rock stratum, is carried out, the driving mechanism is started, the hollow shaft is driven to circularly rotate by the transmission coordination of the pinion and the big gear on the speed reducer, the lower end of the hollow shaft drives the drill bit to rotate to realize rotary drilling, meanwhile, the guide piece which is guided and matched with the upper part of the hollow shaft is driven by the hollow shaft to move upwards to the top end along the inclined guide rail and drive the hammer core to move upwards to a higher position through the guide disc, then, the guide piece moves downwards to the bottom end of the adjacent inclined guide rail along the straight guide rail in the cliff type, the hammer core at the higher position freely falls, the hammer head at the lower end of the hammer core completes one-time impact to the drill bit, in the circulating rotation process of the hollow shaft, the drill bit realizes the drilling, the hammer core continuously impacts the drill bit in the circulating reciprocating upward falling process, compared with the prior art, the drilling device provided by the invention realizes the combined operation of, the energy consumption is lower, and the mechanism principle in whole device is simple, and manufacturing, maintenance and use cost are low, owing to only need start a power supply simultaneously, have also improved the operating efficiency to a certain extent.
Further, the guide piece is in guiding fit with the outer side face of the hollow shaft. The guide piece and the hammer core are respectively positioned on the outer side and the inner side of the hollow shaft at a far distance, so that the interference between the guide piece and the hammer core in the up-and-down moving process is avoided.
Furthermore, the number of the guide frames is two, the two guide frames are arranged at the edge of the guide disc and are symmetrical relative to the hammer core, and the guide piece at the lower end of each guide frame is a guide wheel. The two guide frames enable the upward falling motion of the guide disc to be more stable, and the guide wheel has the advantages that the guide wheel moves more smoothly and stably, and the risk that the guide piece is clamped in the inclined guide rail and the straight guide rail is reduced.
Further, an energy storage device is arranged between the guide disc and the top wall of the main frame. The guide disc goes upward the in-process compression energy storage equipment of whereabouts and carries out the energy storage, and the guide disc drives the in-process that the hammer core fell, and except the gravity of hammer core also the counter force that energy storage equipment provided, the impact effort that the hammer core provided the drill bit is bigger, and the impact of drill bit creeps into the effect better.
Further, the energy storage device is a mechanical spring or a gas spring, the number of the mechanical springs or the number of the gas springs is two, and the two mechanical springs or the two gas springs are arranged at the edge of the guide disc and are symmetrical relative to the hammer core.
Furthermore, the outer edge of the guide disc is in contact with the side wall of the main frame, and the edge of the guide disc and the side wall of the main frame are provided with matched rotation stopping structures, or only the side wall of the main frame is provided with the rotation stopping structures, so that the guide disc is prevented from rotating in the up-and-down moving process.
Furthermore, the rotation stopping structure comprises a bump arranged on the edge of the guide disc and a corresponding groove arranged on the side wall of the main frame, and the groove extends along the vertical direction. The projection and the groove have the advantage of firm fit.
Further, the driving mechanism is an electric motor or a hydraulic motor. The hydraulic motor has small volume and light weight.
Furthermore, the small gear and the large gear are in transmission connection through meshing. The meshing transmission has constant transmission ratio, higher stability and accurate and reliable transmission motion.
Drawings
FIG. 1 is a schematic structural diagram of a rotary percussion compound drilling device of the present invention (a guide frame is in the middle of an inclined guide rail);
FIG. 2 is a schematic structural view of a rotary percussion composite drilling apparatus of the present invention (the guiding frame is at the bottom of the inclined guiding rail);
FIG. 3 is a schematic structural view of a rotary percussion compound drilling apparatus of the present invention (the guide frame is at the top of the inclined guide rail);
FIG. 4 is a schematic view of the internal structure of FIG. 3;
fig. 5 is a schematic structural view of the guide frame in guide fit with the upper end face of the hollow shaft.
Reference numbers in the figures: 1. a main frame; 2. a hollow shaft; 3. a hydraulic motor; 4. a drill bit; 5. a bull gear; 6. a speed reducer; 7. a pinion gear; 8. a guide plate; 9. a hammer core; 10. a hammer head; 11. a guide frame; 12. a guide wheel; 13. an inclined guide rail; 14. a straight guide rail; 15. a mechanical spring; 16. and (4) screws.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
the invention provides a specific embodiment of a rotary impact composite drilling device, which comprises the following steps:
a rotary impact composite drilling device, as shown in fig. 1 to 4, the device comprises a main frame 1, a hollow shaft 2 extending up and down is arranged in the middle of the main frame 1, a drill bit 4 is sleeved at the lower end of the hollow shaft 2, a large gear 5 is sleeved at the radial outer side of the hollow shaft 2 through a key sleeve, the rotary impact composite drilling device further comprises hydraulic motors 3 as driving mechanisms symmetrically arranged at two sides of the hollow shaft 2, speed reducers 6 are connected below the two hydraulic motors 3, the output ends of the two speed reducers 6 are respectively provided with a small gear 7, the two small gears 7 are symmetrically arranged at two sides of the large gear 5 and are in transmission connection with the large gear 5, concretely, as shown in fig. 1 and 3, the small gear 7 and the large gear 5 are in transmission connection through meshing, the transmission ratio of the meshing transmission is constant, the stability is high, the transmission, the small gear and the big gear can also be driven by a gear belt, when the hydraulic motor 3 is started, the hollow shaft 2 is driven to rotate by the gear transmission, and the hollow shaft 2 drives the drill bit 4 to rotate, so that rotary drilling is realized.
In the present embodiment, the hydraulic motor 3 is used as the drive mechanism, and the hydraulic motor 3 is small in size and light in weight, but in other embodiments, other types of motors or motors may be used as the drive mechanism.
As shown in fig. 1 to 3, an impactor is arranged at the upper part of the hollow shaft 2 in a guiding manner, and specifically, the impactor comprises a horizontally arranged guide disc 8 and a hammer core 9 which is arranged in the middle of the guide disc 8 and extends downwards, the hammer core 9 penetrates through the hollow shaft 2, a hammer head 10 is arranged at the lower end of the hammer core 9, guide frames 11 which extend up and down are arranged on the guide disc 8, the number of the guide frames 11 is two, the two guide frames 11 are arranged at the edge of the guide disc 8 and are symmetrical relative to the hammer core 9, guide wheels 12 are arranged at the lower end of the guide frames 11, and the guide wheels 12 serve as guiding members for guiding and matching with the outer side surface of the hollow shaft 2.
As shown in fig. 1 to 3, a plurality of inclined guide rails 13 extending obliquely from bottom to top are arranged on the outer side surface of the hollow shaft 2 along the circumferential direction, the top end of each inclined guide rail 13 is communicated with the bottom end of the adjacent inclined guide rail 13 through a straight guide rail 14 extending vertically in a cliff type, the hollow shaft 2 drives the drill bit 4 to drill rotationally and simultaneously drives the guide wheels 12 to move upwards to the top ends of the inclined guide rails 13, the upward guide wheels 12 drive the hammer core 9 to move upwards to a higher position, after reaching the top end of the inclined guide rails 13, the guide wheels 12 freely fall from the straight guide rails 14, the hammer core 9 moves downwards to complete one-time impact on the drill bit 4 through the hammer head 10 at the lower end, the strokes of the inclined guide rails 13 and the straight guide rails 14 meet the requirement that the hammer head 10 can contact and impact the drill bit 4 when the hammer core 9 moves downwards to the bottom end, in order to avoid left-right deflection of the, the impact effect of the hammer 10 on the drill bit 4 is better, the drill bit 4 continuously realizes drilling in the circulating rotation process of the hollow shaft 2, and the hammer core 9 continuously impacts the drill bit 4 in the circulating reciprocating upward falling process to realize impact drilling.
In the present embodiment, the guide wheel 12 is in guiding fit with the outer side surface of the hollow shaft 2, so that the guide wheel 12 and the hammer core 9 are respectively located at the outer side and the inner side of the hollow shaft 2, and are far away from each other, thereby avoiding interference between the guide wheel 12 and the hammer core during the up-and-down movement of the hollow shaft 2.
In this embodiment, the number of the guide frames 11 is two, two guide frames 11 are arranged at the edge of the guide disc 8 and are symmetrical relative to the hammer core 9, the guide piece at the lower end of each guide frame 11 is a guide wheel 12, the two guide frames 11 are arranged to make the upward and downward movement of the guide disc 8 more stable, and the guide wheels 12 are adopted to have the advantages that the guide wheels 12 move more smoothly and stably, the risk that the guide piece is clamped in the inclined guide rail 13 and the straight guide rail 14 is reduced, and in other embodiments, the number of the guide frames can be three or can be adjusted according to actual needs; the guide member may be a guide block instead of the guide wheel.
As shown in fig. 1 to 4, the outer side edge of the guiding plate 8 contacts with the side wall of the main frame 1, the side wall of the main frame 1 is provided with a rotation stopping structure, specifically, the rotation stopping structure is a screw 16, the screw 16 has the advantage of simple structure and convenience in setting, the rotation stopping structure is used for preventing the guiding plate 8 from rotating in the up-and-down moving process, in other embodiments, the edge of the guiding plate 8 and the side wall of the main frame 1 can also be provided with a matched rotation stopping structure, specifically, a bump can be arranged at the edge of the guiding plate 8, the side wall of the main frame 1 is provided with a strip-shaped groove which is matched with the bump in a guiding manner and extends up and down, the effect of rotation of the guiding plate 8 can also be prevented, wherein the number.
As shown in fig. 1 to 4, an energy storage device is further disposed between the guide disc 8 and the top wall of the main frame 1, the energy storage device is compressed to store energy when the guide disc 8 moves upward and falls, and when the guide disc 8 drives the hammer core 9 to fall, a reaction force provided by the energy storage device is provided in addition to the gravity of the hammer core 9, and an impact force provided by the hammer core 9 on the drill bit 4 is larger, so that the drill bit 4 has a better impact drilling effect.
The working principle of the rotary impact composite drilling device is as follows: when the rock stratum drilling operation, particularly the drilling operation of a complex rock stratum, is carried out, the hydraulic motor 3 is started, the hollow shaft 2 is driven to rotate circularly by the transmission matching of the pinion 7 on the speed reducer 6 and the gearwheel 5, the lower end of the hollow shaft 2 drives the drill bit 4 to rotate so as to realize rotary drilling, meanwhile, the guide wheel 12 which is in guide matching with the upper part of the hollow shaft 2 is driven by the hollow shaft 2 to move upwards to the top end along the inclined guide rail 13 and drive the hammer core 9 to move upwards to a higher position through the guide disc 8, the guide disc 8 moves upwards while compressing two mechanical springs 15, the mechanical springs 15 store elastic acting force, the rotation stopping structure limits the guide disc 8 in the circumferential direction to avoid the guide disc 8 rotating, then the guide wheel 12 moves downwards to the bottom end of the adjacent inclined guide rail 13 along the straight guide rail 14 in a cliff type, the hammer core 9 at the higher position is accelerated to fall under the combined action of the, compared with the prior art, the drilling device provided by the invention has the advantages that the rotary drilling and impact drilling composite operation of the drill bit 4 can be realized only by controlling one power source for rotating the hollow shaft 2, the energy consumption is lower, the mechanism principle in the whole device is simple, the manufacturing, maintenance and use costs are low, and meanwhile, only one power source is needed to be started, so that the operation efficiency is improved to a certain extent.
Claims (9)
1. Compound drilling equipment is strikeed in gyration, its characterized in that: the rotary drilling machine comprises a main frame, wherein a hollow shaft extending up and down and driving mechanisms symmetrically arranged on two sides of the hollow shaft are arranged in the main frame, a drill bit is sleeved at the lower end of the hollow shaft, a large gear is sleeved on the radial outer side of the hollow shaft through a key sleeve, speed reducers are connected below the two driving mechanisms, output ends of the two speed reducers are provided with pinions, the two pinions are symmetrically arranged on two sides of the large gear and are in transmission connection with the large gear, and when the driving mechanisms are started, the hollow shaft is driven to rotate through gear transmission, so that rotary;
the upper part of the hollow shaft is provided with an impactor in a guiding way, the impactor comprises a horizontally arranged guide disc and a hammer core which is arranged in the middle of the guide disc and extends downwards through the hollow shaft, the lower end of the hammer core is provided with a hammer head, a guide frame extending downwards is arranged on the guide disc and positioned at the outer side of the hammer core, a guide piece is arranged at the lower end of the guide frame and is in guide fit with the outer side surface or the inner side surface or the upper end surface of the hollow shaft, a plurality of inclined guide rails which extend obliquely from bottom to top are arranged on the outer side surface or the inner side surface or the upper end surface of the hollow shaft in the circumferential direction, the top end of each inclined guide rail is communicated with the bottom ends of the adjacent inclined guide rails through a cliff type vertically extending straight guide rail, so that the hollow shaft drives the drill bit to rotate and drill, simultaneously drives the guide piece to move upwards to the top end of the inclined guide rail and drives the hammer core to move upwards, the guide piece freely falls from the straight guide rail, and the hammer core moves downwards to impact the drill bit through the hammer head;
the stroke of inclined guide rail and straight guide rail satisfies the hammer core and can contact and strike the demand of drill bit down when the bottom.
2. The rotary percussion composite drill apparatus according to claim 1, wherein: the guide piece is in guide fit with the outer side face of the hollow shaft.
3. The rotary percussion composite drill apparatus according to claim 2, wherein: the number of the guide frames is two, the two guide frames are arranged on the edge of the guide disc and are symmetrical relative to the hammer core, and the guide piece at the lower end of each guide frame is a guide wheel.
4. The rotary percussion composite drilling device according to any one of claims 1 to 3, characterized in that: and an energy storage device is arranged between the guide disc and the top wall of the main frame.
5. The rotary percussion composite drill apparatus according to claim 4, wherein: the energy storage device is mechanical springs or gas springs, the number of the mechanical springs or the number of the gas springs is two, and the two mechanical springs or the two gas springs are arranged at the edge of the guide disc and are symmetrical relative to the hammer core.
6. The rotary percussion composite drilling device according to any one of claims 1 to 3, characterized in that: the outer edge of the guide disc is in contact with the side wall of the main frame, the edge of the guide disc and the side wall of the main frame are provided with matched rotation stopping structures, or only the side wall of the main frame is provided with the rotation stopping structures, so that the guide disc is prevented from rotating in the up-and-down moving process.
7. The rotary percussion composite drill apparatus according to claim 6, wherein: the rotation stopping structure comprises a convex block arranged on the edge of the guide disc and a corresponding groove arranged on the side wall of the main frame, and the groove extends along the vertical direction.
8. The rotary percussion composite drilling device according to any one of claims 1 to 3, characterized in that: the driving mechanism is an electric motor or a hydraulic motor.
9. The rotary percussion composite drilling device according to any one of claims 1 to 3, characterized in that: the small gear and the large gear are in transmission connection through meshing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010468892.3A CN111502537A (en) | 2020-05-28 | 2020-05-28 | Rotary impact composite drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010468892.3A CN111502537A (en) | 2020-05-28 | 2020-05-28 | Rotary impact composite drilling device |
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| Publication Number | Publication Date |
|---|---|
| CN111502537A true CN111502537A (en) | 2020-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010468892.3A Pending CN111502537A (en) | 2020-05-28 | 2020-05-28 | Rotary impact composite drilling device |
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| Country | Link |
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| CN (1) | CN111502537A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115365975A (en) * | 2022-08-31 | 2022-11-22 | 浙江凯达消防科技有限公司 | Intelligent polishing machine chain spring hollow shaft device |
| CN116241173A (en) * | 2023-05-09 | 2023-06-09 | 中铁第一勘察设计院集团有限公司 | Single power source impact rotary compaction drilling construction method and equipment |
-
2020
- 2020-05-28 CN CN202010468892.3A patent/CN111502537A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115365975A (en) * | 2022-08-31 | 2022-11-22 | 浙江凯达消防科技有限公司 | Intelligent polishing machine chain spring hollow shaft device |
| CN115365975B (en) * | 2022-08-31 | 2023-11-28 | 浙江凯达消防科技有限公司 | Intelligent polishing machine chain spring hollow shaft device |
| CN116241173A (en) * | 2023-05-09 | 2023-06-09 | 中铁第一勘察设计院集团有限公司 | Single power source impact rotary compaction drilling construction method and equipment |
| CN116241173B (en) * | 2023-05-09 | 2023-08-11 | 中铁第一勘察设计院集团有限公司 | Single power source impact rotary compaction drilling construction method and equipment |
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