CN107524644A - Down-the-hole drill propelling pressure self-adaptive hydraulic control loop - Google Patents
Down-the-hole drill propelling pressure self-adaptive hydraulic control loop Download PDFInfo
- Publication number
- CN107524644A CN107524644A CN201710499689.0A CN201710499689A CN107524644A CN 107524644 A CN107524644 A CN 107524644A CN 201710499689 A CN201710499689 A CN 201710499689A CN 107524644 A CN107524644 A CN 107524644A
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- CN
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- Prior art keywords
- oil circuit
- control
- valve
- pressure
- oil
- 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.)
- Granted
Links
- 230000003044 adaptive effect Effects 0.000 claims abstract description 27
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 claims abstract description 6
- 238000013016 damping Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 description 15
- 239000011435 rock Substances 0.000 description 7
- 239000007795 chemical reaction product Substances 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
-
- 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/02—Fluid rotary type drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50554—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure downstream of the pressure control means, e.g. pressure reducing valve
Landscapes
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of down-the-hole drill propelling pressure self-adaptive hydraulic control loop, including propelling cylinder and rotary motor, the first oil circuit is connected with the rod chamber of propelling cylinder, is connected with the second oil circuit on rodless cavity；The 3rd oil circuit and the 4th oil circuit are connected with respectively on two hydraulic fluid ports of rotary motor；Also include control loop, control loop includes the first control oil circuit and the second control oil circuit；First control oil circuit is provided with pressure adaptive control valve, and the oil outlet end of pressure adaptive control valve is connected with the control port of unidirectional piloted reducer, and the oil inlet end of pressure adaptive control valve is connected with the first oil circuit；Second control oil circuit is provided with shuttle valve, and the oil-out of shuttle valve is connected with the control port of the first overflow valve；One end of pressure adaptive control valve is provided with the first control port, the other end is provided with the second control port and spring, and the first control port is connected with the second control oil circuit, and the second control port is connected with the oil inlet end of pressure adaptive control valve.
Description
Technical field
The invention belongs to hydraulic system technical field, is specifically controlled for a kind of down-the-hole drill propelling pressure self-adaptive hydraulic
Loop.
Background technology
Down-the-hole drill is a kind of efficient rig, and in the market high-end product is substantially monopolized by external product,
Domestic manufacturer based on mid and low-end products, wherein, low-end product shipment amount is maximum.At present, low-end product is substantially without control
Device, using manually controlling, most basic function can only be realized.Down-the-hole drill drilling when drill bit in depth under, with brill
The increase of hole depth, the structure of rock stratum can change, and drilling rod increases its deadweight and can also increased, if propelling pressure is constant, bore
Resistance between head and rock stratum increases, and when resistance exceedes motor torsional moment, will appear from the phenomenon of bit freezing, bit freezing bores strong influence
Hole efficiency and service life of equipment.When rock stratum is harder, operating personnel are needed to heighten propelling pressure manually to improve drilling efficiency,
It is higher to the skill set requirements of operating personnel.
The content of the invention
In view of this, it is an object of the invention to provide a kind of down-the-hole drill propelling pressure self-adaptive hydraulic control loop,
It can realize that propelling pressure is adapted with rotation pressure, drilling rod weight by hydraulic control, improve the efficiency of equipment drilling and fit
Should be able to power, automatic pre- preventing sticking, reduce operation intensity.
To reach above-mentioned purpose, the present invention provides following technical scheme：
A kind of down-the-hole drill propelling pressure self-adaptive hydraulic control loop, including propelling cylinder and rotary motor, it is described to promote oil
The first oil circuit is connected with the rod chamber of cylinder, is connected with the second oil circuit, first oil circuit and the second oil circuit on rodless cavity
On be connected with the first banked direction control valves；The 3rd oil circuit and the 4th oil circuit are connected with respectively on two hydraulic fluid ports of the rotary motor,
The second banked direction control valves is connected with 3rd oil circuit and the 4th oil circuit；The oil inlet of first banked direction control valves and the second banked direction control valves
It is connected respectively with oil sources；
The first overflow valve is provided between first oil circuit and the second oil circuit, and first oil circuit subtracts provided with unidirectional pilot-operated type
Pressure valve；The second overflow valve is provided between 3rd oil circuit and the 4th oil circuit；
Also include control loop, the control loop includes the first control oil circuit and is arranged on first oil circuit and the 4th oil circuit
Between second control oil circuit；
The first control oil circuit is provided with pressure adaptive control valve, the oil outlet end of the pressure adaptive control valve with it is described
The control port of unidirectional piloted reducer is connected, the oil inlet end of the pressure adaptive control valve and the first oil circuit phase
Even；
The second control oil circuit is provided with shuttle valve, the control port phase of the oil-out of the shuttle valve and first overflow valve
Even；
One end of the pressure adaptive control valve is provided with the first control port, the other end is provided with the second control port and spring,
Control port is provided with damping hole, and first control port is connected with the described second control oil circuit, second control port
It is connected with the oil inlet end of the pressure adaptive control valve.
Further, it is described that hydraulically-controlled type check valve, the liquid are unidirectionally provided between piloted reducer and the propelling cylinder
The control mouth of control formula check valve is connected with second oil circuit.
Further, the oil inlet end also series connection with it of the pressure adaptive control valve is provided with direct acting pressure.
Further, it is provided with pressure switch between the shuttle valve and the 4th oil circuit.
Further, connected between first oil circuit and the 4th oil circuit and be provided with choke valve and check valve.
The principle of down-the-hole drill propelling pressure self-adaptive hydraulic control loop of the present invention is：Rock stratum change is run into during drilling
It is soft, depth increase is promoted, now, steering resistance increase, rotation pressure rises, on the left of pressure adaptive control valve in control pressure
Rise, promote valve element to move right, the control mouth pressure oil pressure of guide's pressure-reducing valve declines, and valve core opening reduces, propelling pressure drop
It is low, promote depth to reduce, resistance reduces, and rotation pressure recovers normal；When rotation pressure or propelling pressure can not self-regulated exceed and overflow
When flowing valve set pressure, the overflow valve work between first, second oil circuit, quick condition is advanced into, sends and believes to operating personnel
Number；When drilling runs into rock stratum and is hardened, depth is promoted to reduce, steering resistance reduces, and drilling efficiency is not high, now, pressure adaptive
Control pressure declines on the left of control valve, and valve element rises to left movement, the control mouth pressure oil pressure of guide's pressure-reducing valve, valve core opening
Increase, propelling pressure rise promote depth increase, and drilling efficiency improves.
The beneficial effects of the present invention are：
The down-the-hole drill propelling pressure self-adaptive hydraulic control loop of the present invention can realize propelling pressure and rotation pressure, brill automatically
Bar weight is adapted, and is applied on low side down-the-hole drill, can improve the drilling efficiency of equipment, and realizes that automatic anti-blocking bores function；
Controlled using pure hydraulic control circuit, in that context it may be convenient to existing equipment is transformed, improvement cost is low；As long as operating personnel's meeting
Basic operation, the skill set requirements of operating personnel are reduced.
Brief description of the drawings
In order that the purpose of the present invention, technical scheme and beneficial effect are clearer, the present invention provides drawings described below and carried out
Explanation：
Fig. 1 is the fluid path figure of down-the-hole drill propelling pressure self-adaptive hydraulic control loop embodiment of the present invention.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art can be with
It is better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
As shown in figure 1, the fluid path figure for down-the-hole drill propelling pressure self-adaptive hydraulic control loop embodiment of the present invention.This
The down-the-hole drill propelling pressure self-adaptive hydraulic control loop of embodiment, including propelling cylinder 13 and rotary motor 16, promote oil
The first oil circuit 1 is connected with the rod chamber of cylinder 13, is connected with the second oil circuit 2, the first oil circuit 1 and the second oil circuit on rodless cavity
The first banked direction control valves 9 is connected with 2；The 3rd oil circuit 3 and the 4th oil circuit are connected with respectively on two hydraulic fluid ports of rotary motor 16
4, the second banked direction control valves 14 is connected with the 3rd oil circuit 3 and the 4th oil circuit 4；The oil-feed of first banked direction control valves 9 and the second banked direction control valves 14
Mouth is connected with oil sources respectively.
The first overflow valve 10 is provided between first oil circuit and the second oil circuit, and the first oil circuit depressurizes provided with unidirectional pilot-operated type
Valve 11；The second overflow valve 15 is provided between 3rd oil circuit and the 4th oil circuit.The unidirectional piloted reducer 11 of the present embodiment is with pushing away
Enter between oil cylinder 13 and be provided with hydraulically-controlled type check valve 12, the control mouth of hydraulically-controlled type check valve 12 is connected with the second oil circuit 2.
The down-the-hole drill propelling pressure self-adaptive hydraulic control loop of the present embodiment also includes control loop, control loop bag
The the second control oil circuit 6 for including the first control oil circuit 5 and being arranged between the first oil circuit 1 and the 4th oil circuit 4.Specifically, the first control
Liquefaction road 5 is provided with pressure adaptive control valve 20, the oil outlet end of pressure adaptive control valve 20 and unidirectional piloted reducer
11 control port is connected, and the oil inlet end of pressure adaptive control valve 20 is connected with the first oil circuit 14, and pressure adaptive controls
The also series connection with it of the oil inlet end of valve 20 is provided with direct acting pressure 19.Connected between first oil circuit 1 and the 4th oil circuit 4 provided with throttling
Valve 17 and check valve 18.
Second control oil circuit 6 is provided with shuttle valve 21, and the oil-out of shuttle valve 21 is connected with the control port of the first overflow valve 10.
Pressure switch 22 is provided between the oil circuit 4 of shuttle valve 21 and the 4th.One end of the pressure adaptive control valve 20 of the present embodiment is provided with
First control port, the other end are provided with the second control port and spring, and control port is provided with damping hole, the first control port with
Second control oil circuit 6 is connected, and the second control port is connected with the oil inlet end of pressure adaptive control valve 20.
The principle of the down-the-hole drill propelling pressure self-adaptive hydraulic control loop of the present embodiment is：Rock stratum change is run into during drilling
It is soft, depth increase is promoted, now, steering resistance increase, rotation pressure rises, on the left of pressure adaptive control valve in control pressure
Rise, promote valve element to move right, the control mouth pressure oil pressure of guide's pressure-reducing valve declines, and valve core opening reduces, propelling pressure drop
It is low, promote depth to reduce, resistance reduces, and rotation pressure recovers normal；When rotation pressure or propelling pressure can not self-regulated exceed and overflow
When flowing valve set pressure, the overflow valve work between first, second oil circuit advances into quick condition, pressure switch turn on to
Operating personnel send signal；When drilling runs into rock stratum and is hardened, depth is promoted to reduce, steering resistance reduces, and drilling efficiency is not high, this
When, control pressure declines on the left of pressure adaptive control valve, and valve element is to left movement, the control mouth pressure oil pressure of guide's pressure-reducing valve
Rise, valve core opening increase, propelling pressure rise promotes depth increase, and drilling efficiency improves.
The beneficial effect of the present embodiment is：
The down-the-hole drill propelling pressure self-adaptive hydraulic control loop of the present invention can realize propelling pressure and rotation pressure, brill automatically
Bar weight is adapted, and is applied on low side down-the-hole drill, can improve the drilling efficiency of equipment, and realizes that automatic anti-blocking bores function；
Controlled using pure hydraulic control circuit, in that context it may be convenient to existing equipment is transformed, improvement cost is low；As long as operating personnel's meeting
Basic operation, the skill set requirements of operating personnel are reduced.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, protection model of the invention
Enclose not limited to this.The equivalent substitute or conversion that those skilled in the art are made on the basis of the present invention, in the present invention
Protection domain within.Protection scope of the present invention is defined by claims.
Claims (5)
1. a kind of down-the-hole drill propelling pressure self-adaptive hydraulic control loop, including propelling cylinder（13）And rotary motor（16）,
The propelling cylinder（13）Rod chamber on be connected with the first oil circuit（1）, be connected with the second oil circuit on rodless cavity（2）, institute
State the first oil circuit（1）With the second oil circuit（2）On be connected with the first banked direction control valves（9）；The rotary motor（16）Two hydraulic fluid ports
It is upper to be connected with the 3rd oil circuit respectively（3）With the 4th oil circuit（4）, the 3rd oil circuit（3）With the 4th oil circuit（4）On be connected with
Second banked direction control valves（14）；First banked direction control valves（9）With the second banked direction control valves（14）Oil inlet be connected respectively with oil sources；Its feature
It is：
The first overflow valve is provided between first oil circuit and the second oil circuit（10）, and first oil circuit is provided with unidirectional guide
Formula pressure-reducing valve（11）；The second overflow valve is provided between 3rd oil circuit and the 4th oil circuit（15）；
Also include control loop, the control loop includes the first control oil circuit（5）Be arranged on first oil circuit（1）With
Four oil circuits（4）Between second control oil circuit（6）；
The first control oil circuit（5）It is provided with pressure adaptive control valve（20）, the pressure adaptive control valve（20）'s
Oil outlet end and the unidirectional piloted reducer（11）Control port be connected, the pressure adaptive control valve（20）Oil-feed
End is connected with first oil circuit；
The second control oil circuit（6）It is provided with shuttle valve（21）, the shuttle valve（21）Oil-out and first overflow valve
（10）Control port be connected；
The pressure adaptive control valve（20）One end be provided with the first control port, the other end and be provided with the second control port and bullet
Spring, control port are provided with damping hole, and first control port is connected with the described second control oil circuit, the second control oil
Mouth and the pressure adaptive control valve（20）Oil inlet end be connected.
2. down-the-hole drill propelling pressure self-adaptive hydraulic control loop according to claim 1, it is characterised in that：The list
To piloted reducer（11）With the propelling cylinder（13）Between be provided with hydraulically-controlled type check valve（12）, the hydraulically-controlled type check valve
（12）Control mouth and second oil circuit（2）It is connected.
3. down-the-hole drill propelling pressure self-adaptive hydraulic control loop according to claim 1, it is characterised in that：The pressure
Force adaptive control valve（20）Oil inlet end also series connection with it be provided with direct acting pressure（19）.
4. down-the-hole drill propelling pressure self-adaptive hydraulic control loop according to claim 1, it is characterised in that：The shuttle
Valve（21）With the 4th oil circuit（4）Between be provided with pressure switch（22）.
5. down-the-hole drill propelling pressure self-adaptive hydraulic control loop according to claim 1, it is characterised in that：Described
One oil circuit（1）With the 4th oil circuit（4）Between series connection be provided with choke valve（17）And check valve（18）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710499689.0A CN107524644B (en) | 2017-06-27 | 2017-06-27 | Self-adaptive hydraulic control loop for thrust pressure of down-the-hole drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710499689.0A CN107524644B (en) | 2017-06-27 | 2017-06-27 | Self-adaptive hydraulic control loop for thrust pressure of down-the-hole drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107524644A true CN107524644A (en) | 2017-12-29 |
| CN107524644B CN107524644B (en) | 2024-03-01 |
Family
ID=60748778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710499689.0A Active CN107524644B (en) | 2017-06-27 | 2017-06-27 | Self-adaptive hydraulic control loop for thrust pressure of down-the-hole drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107524644B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0754568A (en) * | 1993-08-12 | 1995-02-28 | Kato Works Co Ltd | Control device for hydraulic motor to drive kelly-bar |
| JPH07119708A (en) * | 1993-10-26 | 1995-05-09 | Komatsu Ltd | Oil pressure circuit for rotation |
| JPH09195308A (en) * | 1996-01-19 | 1997-07-29 | Sumitomo Constr Mach Co Ltd | Controlling circuit of hydraulic shovel |
| CN2858923Y (en) * | 2005-12-31 | 2007-01-17 | 中南大学 | Electro-hydraulic proportion pressuring device for rotary digger |
| CN102996070A (en) * | 2012-11-19 | 2013-03-27 | 无锡市京锡冶金液压机电有限公司 | Automatic anti-blocking method of down-the-hole drill |
| CN202867386U (en) * | 2012-11-14 | 2013-04-10 | 中煤科工集团重庆研究院 | Drill loader hydraulic anti-jamming control system |
| CN203022763U (en) * | 2012-11-30 | 2013-06-26 | 中煤科工集团重庆研究院 | Hydraulic control system of drill loader |
| CN205743871U (en) * | 2016-05-10 | 2016-11-30 | 山河智能装备股份有限公司 | A kind of down-the-hole drill automatic anti-blocking bar controlling |
| CN206889375U (en) * | 2017-06-27 | 2018-01-16 | 衢州职业技术学院 | Down-the-hole drill propelling pressure self-adaptive hydraulic control loop |
-
2017
- 2017-06-27 CN CN201710499689.0A patent/CN107524644B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0754568A (en) * | 1993-08-12 | 1995-02-28 | Kato Works Co Ltd | Control device for hydraulic motor to drive kelly-bar |
| JPH07119708A (en) * | 1993-10-26 | 1995-05-09 | Komatsu Ltd | Oil pressure circuit for rotation |
| JPH09195308A (en) * | 1996-01-19 | 1997-07-29 | Sumitomo Constr Mach Co Ltd | Controlling circuit of hydraulic shovel |
| CN2858923Y (en) * | 2005-12-31 | 2007-01-17 | 中南大学 | Electro-hydraulic proportion pressuring device for rotary digger |
| CN202867386U (en) * | 2012-11-14 | 2013-04-10 | 中煤科工集团重庆研究院 | Drill loader hydraulic anti-jamming control system |
| CN102996070A (en) * | 2012-11-19 | 2013-03-27 | 无锡市京锡冶金液压机电有限公司 | Automatic anti-blocking method of down-the-hole drill |
| CN203022763U (en) * | 2012-11-30 | 2013-06-26 | 中煤科工集团重庆研究院 | Hydraulic control system of drill loader |
| CN205743871U (en) * | 2016-05-10 | 2016-11-30 | 山河智能装备股份有限公司 | A kind of down-the-hole drill automatic anti-blocking bar controlling |
| CN206889375U (en) * | 2017-06-27 | 2018-01-16 | 衢州职业技术学院 | Down-the-hole drill propelling pressure self-adaptive hydraulic control loop |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107524644B (en) | 2024-03-01 |
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