CN115355315B - Variable-speed impact rotary power head - Google Patents
Variable-speed impact rotary power head Download PDFInfo
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- CN115355315B CN115355315B CN202211074436.6A CN202211074436A CN115355315B CN 115355315 B CN115355315 B CN 115355315B CN 202211074436 A CN202211074436 A CN 202211074436A CN 115355315 B CN115355315 B CN 115355315B
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- gear
- hollow rotary
- gear shifting
- impact
- shifting
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- 238000000034 method Methods 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 3
- 238000005553 drilling Methods 0.000 abstract description 25
- 230000008569 process Effects 0.000 abstract description 11
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000009527 percussion Methods 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 4
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
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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
- E21B1/00—Percussion drilling
- E21B1/12—Percussion drilling with a reciprocating impulse member
- E21B1/24—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure
- E21B1/26—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure by liquid pressure
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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
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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
- E21B6/02—Drives for drilling with combined rotary and percussive action the rotation being continuous
- E21B6/04—Separate drives for percussion and rotation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to the technical field of geological drilling, in particular to a variable-speed impact rotary power head which comprises a lower idler gear, a gear shifting duplex gear, an upper idler gear, a box body, a driving motor, an impact oil cylinder and a mechanical gear shifting oil cylinder, wherein the lower idler gear is connected with the upper idler gear through a gear shifting duplex gear; a hollow rotary mandrel penetrates through the box body, an inner impact rod is arranged in the hollow rotary mandrel, and an impact oil cylinder is arranged at the top of the box body; an upper gear shaft and a lower gear are respectively arranged on the upper side and the lower side of the hollow rotary mandrel, and are respectively meshed with an upper idler gear and a lower idler gear which are arranged on the hollow rotary mandrel; the driving motor is arranged on the box body and used for driving the upper gear shaft and the lower gear; the gear shifting duplex gear is sleeved on the external spline of the hollow rotary mandrel and is positioned between the upper idler gear and the lower idler gear, and is driven by the mechanical gear shifting oil cylinder to move up and down along the external spline of the hollow rotary mandrel. The invention solves the problem that the transmission mechanism of the traditional percussion rotary drilling process can not change speed.
Description
Technical Field
The invention relates to the technical field of geological drilling equipment, in particular to a variable-speed impact rotary power head.
Background
The power head impact rotary drilling is a common drilling process, has the characteristics of high efficiency and strong stratum adaptability, and is a core component of drilling machinery for realizing the impact rotary drilling process. At present, most of impact rotary power heads have small rotating speed range and small rotary torque, and the impact rotary drilling process is restricted from being popularized and applied in the engineering field. To solve this problem, it is necessary to design a hydraulic driving impact rotary power head capable of multi-stage speed change.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a hydraulic drive impact rotary power head capable of realizing multistage speed change, which has the advantages of wide rotating speed range and large output torque, and can be suitable for various drilling processes such as impact drilling, rotary drilling, impact and rotary drilling, large-diameter rope coring drilling and the like.
The technical scheme adopted for solving the technical problems is as follows:
a variable-speed impact rotary power head comprises a lower idler gear, a gear shifting duplex gear, an upper idler gear, a box body, an upper gear shaft, a driving motor, an impact cylinder, an inner impact rod, a hollow rotary mandrel, a mechanical gear shifting cylinder and a lower gear; the box body is internally penetrated with a hollow rotary mandrel, an inner impact rod is arranged in the hollow rotary mandrel, the impact cylinder is arranged at the top of the box body, an impact piston in the impact cylinder can directly strike the inner impact rod, and the inner impact rod strikes the anvil at the top of the drilling tool to realize impact drilling operation. The upper side and the lower side of the hollow rotary mandrel are respectively provided with an upper gear shaft and a lower gear, and the upper gear shaft and the lower gear are respectively meshed with an upper idler gear and a lower idler gear which are arranged on the hollow rotary mandrel, so that gear meshing transmission is realized. The driving motor is arranged on the box body and used for driving the upper gear shaft and the lower gear. The gear shifting duplex gear is sleeved on the external spline of the hollow rotary mandrel, is positioned between the upper idler gear and the lower idler gear, and can be meshed with the upper idler gear or the lower idler gear, and is driven by the mechanical gear shifting oil cylinder to move up and down along the external spline of the hollow rotary mandrel.
Further, the gear shifting duplex gear is driven to move up and down through a gear shifting driving plate, the gear shifting duplex gear can rotate relative to the gear shifting driving plate, and the gear shifting driving plate is connected with a piston rod of the mechanical gear shifting oil cylinder.
Further, the drive motor is provided with not less than two groups.
Further, all the driving motors are connected with a three-position four-way hydraulic shift valve, and the three-position four-way hydraulic shift valve can realize series connection or parallel connection between all the driving motors.
Further, the driving motor is installed at the top or bottom of the case.
Further, the method for using the variable-speed impact rotary power head comprises the following steps:
when a piston rod of the mechanical gear shifting oil cylinder moves upwards, the gear shifting duplex gear is driven to move upwards along the external spline of the hollow rotary mandrel until the external teeth on the upper part of the gear shifting duplex gear are meshed with the internal teeth of the upper idler gear, at the moment, the output power is driven by the driving motor to drive the upper gear shaft and is transmitted to the upper idler gear, and then the output power is transmitted to the hollow rotary mandrel through the internal spline of the gear shifting duplex gear, so that low-speed large-torque output is realized.
When a piston rod of the mechanical gear shifting oil cylinder moves downwards, the gear shifting duplex gear is driven to move downwards along the external spline of the hollow rotary mandrel until the external teeth at the lower part of the gear shifting duplex gear are meshed with the internal teeth of the lower idler gear, at the moment, the output power is driven by the driving motor to drive the lower gear and then is transmitted to the lower idler gear, and then is transmitted to the hollow rotary mandrel through the internal spline of the gear shifting duplex gear, so that high-speed high-torque output is realized.
Furthermore, at any high-low speed mechanical gear position of the gear shifting duplex gear, all driving motors are connected in series or in parallel through the three-position four-way hydraulic gear shifting valve, so that high-low speed gear switching under a hydraulic mode is realized. The method can obtain power output of various torques with different rotational speeds, and provides a larger range of rotational speeds and torques for the implementation of the percussion rotary drilling process.
The invention has the technical effects that:
compared with the prior art, the variable-speed impact rotary power head combines mechanical gear shifting and hydraulic gear shifting, realizes high-low speed gear switching in multiple modes, solves the problem that a transmission mechanism of the traditional impact rotary drilling process cannot change speed, has a larger range of rotating speed and torque, and can be widely used in multiple drilling processes such as impact, rotation, impact and rotation drilling, large-diameter rope coring and the like.
Drawings
Fig. 1 is a schematic diagram of the structural principle of the variable-speed impact rotary power head of the invention.
In the figure, 1, a lower idler gear; 2. a gear shifting duplex gear; 3. an upper idler gear; 4. a case; 5. an upper gear shaft; 6. a drive motor; 7. an impact cylinder; 8. an inner impact bar; 9. a hollow rotary mandrel; 10. a mechanical gear shifting oil cylinder; 11. a lower gear; 12. a hydraulic shift valve; 13. a shift dial.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings of the specification.
Examples:
as shown in fig. 1, the variable-speed impact rotary power head according to the present embodiment includes a lower idler gear 1, a gear-shifting duplex gear 2, an upper idler gear 3, a case 4, an upper gear shaft 5, a driving motor 6, an impact cylinder 7, an inner impact rod 8, a hollow rotary mandrel 9, a mechanical gear-shifting cylinder 10, a lower gear 11, a hydraulic gear-shifting valve 12, and a gear-shifting dial 13.
The box 4 is internally penetrated with a hollow rotary mandrel 9, an inner impact rod 8 is arranged in the hollow rotary mandrel 9, the impact cylinder 7 is arranged at the middle position of the top of the box 4, an impact piston in the impact cylinder 7 can directly strike the inner impact rod 8, and the inner impact rod 8 strikes the anvil at the top of the drilling tool to realize impact drilling operation.
An upper gear shaft 5 and a lower gear 11 are respectively arranged on the upper side and the lower side of the hollow rotary mandrel 9, and the upper gear shaft 5 and the lower gear 11 are respectively meshed with an upper idler gear 3 and a lower idler gear 1 which are arranged on the hollow rotary mandrel 9, so that gear meshing transmission is realized.
In this embodiment, two sets of driving motors 6 are provided and are both mounted on the top of the case 4. The driving motor 6 is sequentially connected with the upper driving gear shaft 5 and the lower driving gear 11, the two groups of driving motors 6 are connected with the three-position four-way hydraulic shift valve 12, and the three-position four-way hydraulic shift valve 12 can realize the connection of the two groups of driving motors 6 in a serial or parallel state, so that the high-low speed gear switching under the hydraulic mode is realized.
The gear shifting duplex gear 2 is sleeved on an external spline of the hollow rotary mandrel 9, is positioned between the upper idler gear 3 and the lower idler gear 1, and can be respectively meshed with the upper idler gear 3 or the lower idler gear 1, the gear shifting duplex gear 2 is driven to move up and down through a gear shifting driving plate 13, the gear shifting driving plate 13 is connected with a piston rod of the mechanical gear shifting oil cylinder 10, and the gear shifting duplex gear 2 can move up and down along the external spline of the hollow rotary mandrel 9 under the driving of the mechanical gear shifting oil cylinder 10. Specifically, the gear shifting duplex gear 2 is connected with the gear shifting driving plate 13 through a bearing, and can rotate relative to the gear shifting driving plate 13.
When the piston rod of the mechanical gear shifting cylinder 10 moves upwards, the gear shifting dial 13 drives the gear shifting duplex gear 2 to move upwards along the external spline of the hollow rotary mandrel 9 until the external teeth on the upper part of the gear shifting duplex gear 2 are meshed with the internal teeth of the upper idler gear 3, at the moment, the output power is driven by the driving motor 6 to drive the upper gear shaft 5 and is transmitted to the upper idler gear 3, and then the output power is transmitted to the hollow rotary mandrel 9 through the internal spline of the gear shifting duplex gear 2, so that low-speed large-torque output is realized.
When the piston rod of the mechanical gear shifting cylinder 10 moves downwards, the gear shifting driving plate 13 drives the gear shifting duplex gear 2 to move downwards along the external spline of the hollow rotary mandrel 9 until the external teeth at the lower part of the gear shifting duplex gear 2 are meshed with the internal teeth of the lower idler gear 1, at the moment, the output power is driven by the driving motor 6 to drive the lower gear 11 and then is transmitted to the lower idler gear 1, and then is transmitted to the hollow rotary mandrel 9 through the internal spline of the gear shifting duplex gear 2, so that high-speed high-torque output is realized.
On the other hand, in the present embodiment, at any one of the high and low speed mechanical gear positions of the gear shifting duplex gear 2, the connection of the two drive motors 6 in series or in parallel can be achieved through the three-position four-way hydraulic shift valve 12, so that the high and low speed gear switching in the hydraulic mode is achieved. The method can obtain power output of four different rotational speed and torque, provides a larger range of rotational speed and torque for the implementation of the percussion and rotation drilling process, provides a novel transmission device for the further optimization of the drilling process, and can be used for various drilling processes such as percussion, rotation, percussion and rotation drilling, large-diameter rope coring and the like.
The above embodiments are merely examples of the present invention, and the scope of the present invention is not limited to the above embodiments, and any suitable changes or modifications made by those skilled in the art, which are consistent with the claims of the present invention, shall fall within the scope of the present invention.
Claims (7)
1. A variable speed impact rotary power head, characterized by: the gear shifting mechanism comprises a lower idler gear, a gear shifting duplex gear, an upper idler gear, a box body, an upper gear shaft, a driving motor, an impact cylinder, an inner impact rod, a hollow rotary mandrel, a mechanical gear shifting cylinder and a lower gear; the box body is internally penetrated with a hollow rotary mandrel, an inner impact rod is arranged in the hollow rotary mandrel, the impact cylinder is arranged at the top of the box body, and an impact piston in the impact cylinder can directly strike the inner impact rod; an upper gear shaft is arranged on the upper side of the hollow rotary mandrel, a lower gear is arranged on the lower side of the hollow rotary mandrel, the upper gear shaft is meshed with an upper idler gear arranged on the hollow rotary mandrel, and the lower gear is meshed with a lower idler gear arranged on the hollow rotary mandrel; the driving motor is arranged on the box body and used for driving the upper gear shaft and the lower gear; the gear shifting duplex gear is sleeved on the external spline of the hollow rotary mandrel, is positioned between the upper idler gear and the lower idler gear, and can be meshed with the upper idler gear or the lower idler gear, and is driven by the mechanical gear shifting oil cylinder to move up and down along the external spline of the hollow rotary mandrel.
2. The variable speed impact rotary power head of claim 1 wherein: and the gear shifting duplex gear is driven to move up and down through a gear shifting driving plate, and the gear shifting driving plate is connected with a piston rod of the mechanical gear shifting oil cylinder.
3. The variable speed impact rotary power head of claim 1 wherein: the drive motors are arranged in not less than two groups.
4. A variable speed impact rotary power head according to claim 3, characterized in that: all driving motors are connected with a three-position four-way hydraulic shift valve, and the three-position four-way hydraulic shift valve can realize series connection or parallel connection between all driving motors.
5. The variable speed impact rotary power head of claim 1 wherein: the driving motor is arranged at the top or the bottom of the box body.
6. A variable speed impact rotary power head according to any one of claims 1-5, wherein: the application method of the variable-speed impact rotary power head comprises the following steps:
when a piston rod of a mechanical gear shifting oil cylinder moves upwards, the gear shifting duplex gear is driven to move upwards along an external spline of the hollow rotary mandrel until the external teeth on the upper part of the gear shifting duplex gear are meshed with the internal teeth of the upper idler gear, at the moment, the output power is driven by a driving motor to drive the upper gear shaft and is transmitted to the upper idler gear, and then the output power is transmitted to the hollow rotary mandrel through the internal spline of the gear shifting duplex gear, so that low-speed large-torque output is realized;
when a piston rod of the mechanical gear shifting oil cylinder moves downwards, the gear shifting duplex gear is driven to move downwards along the external spline of the hollow rotary mandrel until the external teeth at the lower part of the gear shifting duplex gear are meshed with the internal teeth of the lower idler gear, at the moment, the output power is driven by the driving motor to drive the lower gear and then is transmitted to the lower idler gear, and then is transmitted to the hollow rotary mandrel through the internal spline of the gear shifting duplex gear, so that high-speed high-torque output is realized.
7. The variable speed impact rotary power head of claim 6 wherein: at any high-low speed mechanical gear position of the gear shifting duplex gear, all driving motors are connected in series or in parallel through a three-position four-way hydraulic gear shifting valve, so that high-low speed gear switching under a hydraulic mode is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211074436.6A CN115355315B (en) | 2022-09-03 | 2022-09-03 | Variable-speed impact rotary power head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211074436.6A CN115355315B (en) | 2022-09-03 | 2022-09-03 | Variable-speed impact rotary power head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115355315A CN115355315A (en) | 2022-11-18 |
| CN115355315B true CN115355315B (en) | 2023-06-27 |
Family
ID=84007320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211074436.6A Active CN115355315B (en) | 2022-09-03 | 2022-09-03 | Variable-speed impact rotary power head |
Country Status (1)
| Country | Link |
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| CN (1) | CN115355315B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2784568Y (en) * | 2005-03-14 | 2006-05-31 | 徐州东明机械制造有限公司 | Gear shifting mechanism for power head of rotary drilling rig |
| CN101748969B (en) * | 2009-12-23 | 2012-11-14 | 三一重型装备有限公司 | Hydraulic control loop used for jackdrill and control system thereof |
| WO2012155305A1 (en) * | 2011-05-16 | 2012-11-22 | Tang Zhongsheng | Rotary impact type rock drilling machine and double-layer drilling rod mechanism |
| CN103046870A (en) * | 2012-12-17 | 2013-04-17 | 中交第一航务工程勘察设计院有限公司 | Percussion drill suitable for construction under complex sea area condition |
| CN203655147U (en) * | 2013-12-25 | 2014-06-18 | 中国地质科学院勘探技术研究所 | Power head for deep-hole core drilling machine |
| CN213743248U (en) * | 2020-12-18 | 2021-07-20 | 湖南科技大学 | Horizontal drilling machine with impact device |
-
2022
- 2022-09-03 CN CN202211074436.6A patent/CN115355315B/en active Active
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| Publication number | Publication date |
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| CN115355315A (en) | 2022-11-18 |
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