CN115355315A - Variable-speed impact rotary power head - Google Patents
Variable-speed impact rotary power head Download PDFInfo
- Publication number
- CN115355315A CN115355315A CN202211074436.6A CN202211074436A CN115355315A CN 115355315 A CN115355315 A CN 115355315A CN 202211074436 A CN202211074436 A CN 202211074436A CN 115355315 A CN115355315 A CN 115355315A
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- China
- Prior art keywords
- gear
- impact
- shifting
- gear shifting
- hollow rotary
- 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.)
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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 DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
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 duplicate 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 gear-shifting duplicate gear through a transmission shaft; a hollow rotary mandrel penetrates through the box body, an internal 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 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; the driving motor is arranged on the box body and used for driving the upper gear shaft and the lower gear; the gear shifting duplicate gear is sleeved on an external spline of the hollow rotary mandrel, is positioned between the upper idle gear and the lower idle gear, and can move up and down along the external spline of the hollow rotary mandrel under the driving of the mechanical gear shifting oil cylinder. The invention solves the problem that the transmission mechanism of the traditional impact 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 percussion rotary drilling of the power head is a common drilling process, has the characteristics of high efficiency and strong stratum adaptability, and is a core component for realizing the percussion rotary drilling process of drilling machinery. At present, most of impact rotary power heads have small rotating speed range and small rotary torque, and the popularization and application of the impact rotary drilling process in the engineering field are restricted. In order to solve the problem, a hydraulic drive impact rotary power head capable of changing speed in multiple steps is needed to be designed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a hydraulic drive impact rotary power head capable of changing speed in multiple stages, has wide rotating speed range and large output torque, and can be suitable for various drilling processes such as impact drilling, rotary drilling, impact + rotary drilling, large-diameter wire core drilling and the like.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a variable-speed impact rotary power head comprises a lower idler gear, a gear-shifting duplicate gear, an upper idler gear, a box body, an upper gear shaft, a driving motor, an impact oil cylinder, an internal impact rod, a hollow rotary mandrel, a mechanical gear-shifting oil cylinder and a lower gear; the hollow rotary mandrel penetrates through the box body, an inner impact rod is arranged in the hollow rotary mandrel, the impact oil cylinder is installed at the top of the box body, an impact piston inside the impact oil cylinder can directly impact the inner impact rod, and the inner impact rod strikes a anvil head at the top of the drilling tool to achieve impact drilling operation. An upper gear shaft and a lower gear are respectively installed on the upper side and the lower side of the hollow rotary mandrel, and the upper gear shaft and the lower gear are respectively meshed with an upper idler gear and a lower idler gear which are installed 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 duplicate gear is sleeved on an 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 the gear shifting duplicate gear is driven by the mechanical gear shifting oil cylinder to move up and down along the external spline of the hollow rotary mandrel.
Furthermore, the duplicate gear that shifts drives through the driver plate that shifts and reciprocates, and the duplicate gear that shifts can rotate for the driver plate that shifts, the driver plate that shifts with the piston rod of machinery hydro-cylinder of shifting is connected.
Further, the driving motors are arranged in not less than two groups.
Furthermore, all the driving motors are connected with a three-position four-way hydraulic gear shifting valve, and the three-position four-way hydraulic gear shifting valve can realize the connection of all the driving motors in a serial or parallel state.
Further, the driving motor is mounted at the top or the bottom of the box body.
Further, the method for using the variable speed percussive rotary power head comprises the following steps:
when a piston rod of the mechanical gear shifting oil cylinder moves upwards, the gear shifting dual gear is driven to move upwards along an external spline of the hollow rotary mandrel until an upper external spline of the gear shifting dual gear is meshed with an internal spline of the upper idle gear, at the moment, output power is transmitted to the upper idle gear by driving the upper gear shaft driven by the driving motor, and then is transmitted to the hollow rotary mandrel through the internal spline of the gear shifting dual 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 dual gear is driven to move downwards along an external spline of the hollow rotary mandrel until external teeth at the lower part of the gear shifting dual gear are meshed with internal teeth of the lower idle gear, at the moment, output power is transmitted to the lower idle gear by driving the lower gear through the driving motor, and then is transmitted to the hollow rotary mandrel through an internal spline of the gear shifting dual gear, so that high-speed large-torque output is realized.
Furthermore, at any high-low speed mechanical gear position of the gear shifting duplicate gear, all the 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 in a hydraulic mode is realized. By the method, power output of various rotating speed torques can be obtained, and a wider range of rotating speed and torque is provided for 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 disclosed by the invention combines mechanical gear shifting and hydraulic gear shifting, realizes high-low speed gear shifting 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 applied to various drilling processes such as impact, rotation, impact + rotary 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 present invention.
In the figure, 1, a lower idler gear; 2. a shift double gear; 3. an upper idler gear; 4. a box body; 5. an upper gear shaft; 6. a drive motor; 7. impacting the oil cylinder; 8. an inner impact bar; 9. a hollow rotating mandrel; 10. a mechanical gear shifting 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 clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings of the specification.
Example (b):
as shown in fig. 1, the variable-speed impact rotary power head according to this embodiment includes a lower idle gear 1, a shift duplicate gear 2, an upper idle gear 3, a case 4, an upper gear shaft 5, a driving motor 6, an impact cylinder 7, an internal impact rod 8, a hollow rotary spindle 9, a mechanical shift cylinder 10, a lower gear 11, a hydraulic shift valve 12, and a shift dial 13.
The drilling tool is characterized in that a hollow rotary mandrel 9 penetrates through the box body 4, an inner impact rod 8 is arranged in the hollow rotary mandrel 9, the impact oil cylinder 7 is arranged at the middle position of the top of the box body 4, an impact piston in the impact oil cylinder 7 can directly impact the inner impact rod 8, and the inner impact rod 8 impacts an anvil head at the top of the drilling tool to realize impact drilling operation.
An upper gear shaft 5 and a lower gear 11 are respectively installed 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 installed on the hollow rotary mandrel 9, so that gear meshing transmission is realized.
In this embodiment, the driving motors 6 are provided in two sets and are all installed on the top of the box body 4. The driving motor 6 is sequentially connected with the driving upper gear shaft 5 and the driving lower gear 11, the two groups of driving motors 6 are connected with the three-position four-way hydraulic gear shifting valve 12, and the three-position four-way hydraulic gear shifting valve 12 can realize the serial or parallel connection of the two groups of driving motors 6, so that the high-speed gear and the low-speed gear can be switched in a hydraulic mode.
The gear-shifting dual 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 dual gear 2 is driven by the gear-shifting drive plate 13 to move up and down, the gear-shifting drive plate 13 is connected with a piston rod of the mechanical gear-shifting oil cylinder 10, and the gear-shifting dual 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 shift double gear 2 is connected to the shift dial 13 via a bearing, and is rotatable with respect to the shift dial 13.
When a piston rod of the mechanical gear shifting oil cylinder 10 moves upwards, the gear shifting drive plate 13 drives the gear shifting duplicate gear 2 to move upwards along an external spline of the hollow rotary mandrel 9 until an external tooth on the upper part of the gear shifting duplicate gear 2 is meshed with an internal tooth of the upper idle gear 3, at the moment, output power is transmitted to the upper idle gear 3 by driving the upper gear shaft 5 through the driving motor 6 and then transmitted to the hollow rotary mandrel 9 through an internal spline of the gear shifting duplicate gear 2, and low-speed large-torque output is achieved.
When a piston rod of the mechanical gear shifting oil cylinder 10 moves downwards, the gear shifting drive plate 13 drives the gear shifting duplicate gear 2 to move downwards along an external spline of the hollow rotary mandrel 9 until external teeth at the lower part of the gear shifting duplicate gear 2 are meshed with internal teeth of the lower idle gear 1, at the moment, output power is driven by the driving motor 6 to drive the lower gear 11 and then transmitted to the lower idle gear 1, and then transmitted to the hollow rotary mandrel 9 through an internal spline of the gear shifting duplicate gear 2, so that high-speed large-torque output is realized.
On the other hand, in this embodiment, at any high-low speed mechanical gear position of the shifting dual gear 2, the three-position four-way hydraulic shift valve 12 can realize the serial or parallel connection of the two driving motors 6, thereby realizing the high-low speed gear position switching in the hydraulic mode. The method can obtain power output of four different rotating speed torques, provides a larger range of rotating speed and torque for implementing an impact rotary drilling process, provides a novel transmission device for further optimizing the drilling process, and can be used for various drilling processes such as impact, rotary, impact + rotary drilling, large-diameter rope coring and the like.
The above embodiments are only specific examples of the present invention, and the scope of the present invention includes but is not limited to the above embodiments, and any suitable changes or modifications by those of ordinary skill in the art which are consistent with the claims of the present invention should fall within the scope of the present invention.
Claims (7)
1. A variable speed impact rotary power head is characterized in that: the gear shifting device comprises a lower idler gear, a gear shifting dual gear, an upper idler gear, a box body, an upper gear shaft, a driving motor, an impact oil cylinder, an internal impact rod, a hollow rotary mandrel, a mechanical gear shifting oil cylinder and a lower gear; a hollow rotary mandrel penetrates through the box body, an internal impact rod is arranged in the hollow rotary mandrel, the impact oil cylinder is arranged at the top of the box body, and an impact piston in the impact oil cylinder can directly impact the internal impact rod; 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 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; the driving motor is arranged on the box body and used for driving the upper gear shaft and the lower gear; the gear shifting duplicate gear is sleeved on an 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 the gear shifting duplicate gear 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 percussive rotary power head of claim 1, wherein: the gear shifting dual gear drives the gear shifting driving plate to move up and down, and the gear shifting driving plate is connected with a piston rod of the mechanical gear shifting oil cylinder.
3. The variable speed percussive rotary power head of claim 1, wherein: the number of the driving motors is not less than two.
4. The variable speed percussive rotary power head of claim 3, wherein: all the driving motors are connected with a three-position four-way hydraulic gear shifting valve, and the three-position four-way hydraulic gear shifting valve can realize the connection of all the driving motors in a serial or parallel state.
5. The variable speed percussive rotary power head of claim 1, wherein: the driving motor is arranged at the top or the bottom of the box body.
6. The variable speed percussive rotary power head of any one of claims 1-5, wherein: the use method of 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 dual gear is driven to move upwards along an external spline of the hollow rotary mandrel until an external tooth on the upper part of the gear shifting dual gear is meshed with an internal tooth of the upper idle gear, at the moment, output power is driven by the driving motor to drive the upper gear shaft and is transmitted to the upper idle gear, and then the output power is transmitted to the hollow rotary mandrel through an internal spline of the gear shifting dual 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 dual gear is driven to move downwards along an external spline of the hollow rotary mandrel until the external tooth of the lower part of the gear shifting dual gear is meshed with the internal tooth of the lower idle gear, at the moment, output power is driven by the driving motor to drive the lower gear, then the output power is transmitted to the lower idle gear, and then the output power is transmitted to the hollow rotary mandrel through the internal spline of the gear shifting dual gear, so that high-speed large-torque output is realized.
7. The variable speed percussive rotary power head of claim 6, wherein: at any high-low speed mechanical gear position of the gear shifting duplicate gear, all the 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.
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 true CN115355315A (en) | 2022-11-18 |
| CN115355315B CN115355315B (en) | 2023-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211074436.6A Active CN115355315B (en) | 2022-09-03 | 2022-09-03 | Variable-speed impact rotary power head |
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Citations (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 |
| CN101748969A (en) * | 2009-12-23 | 2010-06-23 | 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
Patent Citations (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 |
| CN101748969A (en) * | 2009-12-23 | 2010-06-23 | 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 |
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| Publication number | Publication date |
|---|---|
| CN115355315B (en) | 2023-06-27 |
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