CN102910549B - Rotary drilling rig and main winch pay-off method and pay-off control system thereof - Google Patents
Rotary drilling rig and main winch pay-off method and pay-off control system thereof Download PDFInfo
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- CN102910549B CN102910549B CN201210370623.9A CN201210370623A CN102910549B CN 102910549 B CN102910549 B CN 102910549B CN 201210370623 A CN201210370623 A CN 201210370623A CN 102910549 B CN102910549 B CN 102910549B
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Abstract
The invention provides a rotary drilling rig and a main winch pay-off method and a pay-off control system thereof. The pay-off method comprises the following steps that: an electro-hydraulic proportional valve is arranged on a pilot oil circuit of a main valve and a pressure of pilot oil is controlled by the electro-hydraulic proportional valve to control the position of a valve element of the main valve so as to control the opening of a valve port, thereby controlling a rotating speed of a main winch motor controlled by the main valve; and when a drill rod is paid off to a preset position, the pressure of the pilot oil of the main valve is controlled to be reduced by the electro-hydraulic proportional valve, the valve element of the main valve moves and the opening of the valve port is reduced so as to reduce the flow of pressure oil entering the main winch motor and reduce the rotating speed of the main winch motor, thereby reducing a descending speed of the drill rod and implementing the soft contact of the drill rod and a power head. According to the invention, when the drill rod is close to a power head buffering device, a pay-off speed of a main winch can be effectively reduced, the fierce collision between the drill rod and the power head can be avoided and the service life of the power head of the rotary drilling rig and the integral reliability of the rotary drilling rig can be improved.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of rotary drilling rig and master winch pay-off method, pay-off control system.
Background technology
At present, rotary drilling rig master winch control program puts functions such as putting and float on being all furnished with.Wherein, the collision of long distance is produced when adopting multi-buffer device to avoid drilling rod to contact with unit head when master winch is transferred.But this kind of mode still exists potential faults at present, as easily caused the problem such as leakage of oil, motor reducer damage, when especially new tractor driver operates, rate of breakdown significantly promotes.
Summary of the invention
In view of this, the present invention is intended to propose a kind of rotary drilling rig and master winch pay-off method, pay-off control system, to avoid drilling rod and unit head generation sharp impacts, improves unit head service life and the whole aircraft reliability of rotary drilling rig.
For achieving the above object, technical scheme of the present invention is achieved in that
On the one hand, the invention provides a kind of master winch pay-off method of rotary drilling rig, described method arranges electro-hydraulic proportional valve on guide's oil circuit of main valve, the pressure of guide oil is controlled by described electro-hydraulic proportional valve, to control the position of the spool of described main valve, thus control the aperture of valve port, and then control the rotating speed of the main winch motor controlled by described main valve; When desired location transferred to by drilling rod, the pressure of the guide oil reducing described main valve is controlled by described electro-hydraulic proportional valve, the spool of main valve is moved, valve port opening reduces, and then reduce the flow entering the pressure oil of described main winch motor, reduce the rotating speed of described main winch motor, and then drilling rod descending speed is reduced, realize drilling rod and contact with the soft of unit head.
Further, the controlled electrical signal of described electro-hydraulic proportional valve derives from controller, and described controller is connected with sensor, and described sensor is for detecting the relative position of drilling rod and unit head.
On the other hand, the invention provides a kind of master winch pay-off control system of rotary drilling rig, comprise main winch motor, for control described main winch motor hydraulic control main valve, for control the guide oil break-make of described hydraulic control main valve control handle, for controlling the electro-hydraulic proportional valve of described guide oil pressure and the control setup for controlling described electro-hydraulic proportional valve.
Further, described electro-hydraulic proportional valve is proportional pressure control valve, and described proportional pressure control valve is connected in parallel on the guide's oil circuit between described control handle and described hydraulic control main valve, is controlled the pressure of described guide oil by bypass overflow.
Further, described electro-hydraulic proportional valve is proportional pressure-reducing valve, and described proportional pressure-reducing valve is connected on the guide's oil circuit between described control handle and described hydraulic control main valve, is controlled the pressure of described guide oil by setting pressure relief value.
Further, described control setup is controller, and described controller is connected with the sensor of the relative position for detecting drilling rod and unit head.
Again on the one hand, present invention also offers a kind of rotary drilling rig being provided with above-mentioned master winch pay-off control system.
Relative to prior art, the present invention has following advantage:
1, method and system of the present invention can in drilling rod decentralization process, when drilling rod is close to unit head shock absorber, master winch lowering velocity is effectively reduced, avoids drilling rod and unit head generation sharp impacts, improve unit head service life and the whole aircraft reliability of rotary drilling rig.
2, method and system of the present invention significantly reduces the manipulation strength of operation tractor driver.
3, method and system of the present invention is very little on the impact of master winch maximum lowering velocity.
4, method and system of the present invention is relative to pump controlling flow velocity scheme, and main capacity of pump cataclysm does not occur, and effectively can reduce the fault rate of main pump, and speed of response is very fast.
5, method and system of the present invention compares common throttling control program, has good energy-saving effect.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of master winch lowering system described in the embodiment of the present invention one;
Fig. 2 is the schematic diagram of master winch lowering system described in the embodiment of the present invention two.
Description of reference numerals:
1-main winch motor, 2-hydraulic control main valve, 3-control handle, 4-proportional pressure control valve, 5-proportional pressure-reducing valve.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
The master winch pay-off method of rotary drilling rig of the present invention arranges electro-hydraulic proportional valve on guide's oil circuit of main valve, the pressure of guide oil is controlled by this electro-hydraulic proportional valve, with the position of the spool of control bound, thus control the aperture of valve port, and then control the rotating speed of the main winch motor 1 controlled by main valve; When drilling rod transfers to desired location as unit head shock absorber, the pressure of the guide oil reducing main valve is controlled by electro-hydraulic proportional valve, the spool of main valve is moved, valve port opening reduces, and then reduce the flow entering the pressure oil of described main winch motor 1, reduce the rotating speed of described main winch motor 1, and then drilling rod descending speed is reduced, realize drilling rod and contact with the soft of unit head.The controlled electrical signal of this electro-hydraulic proportional valve can derive from controller, and this controller is connected with the sensor of the relative position for detecting drilling rod and unit head, to realize the automatic control that master winch is transferred.
Below in conjunction with accompanying drawing, each embodiment is illustrated:
Embodiment one
Fig. 1 is the relevant drawings of the present embodiment, as shown in FIG., the master winch pay-off control system of the rotary drilling rig described in the present embodiment comprise main winch motor 1, for control described main winch motor 1 hydraulic control main valve 2, for control the guide oil break-make of described hydraulic control main valve 2 control handle 3, for controlling the proportional pressure control valve 4 of described guide oil pressure and the control setup for controlling described electro-hydraulic proportional valve.Proportional pressure control valve 4 is connected in parallel on the guide's oil circuit between described control handle 3 and described hydraulic control main valve 2, is controlled the pressure of described guide oil by bypass overflow.In the present embodiment, this control setup is the controller being connected with sensor, and this sensor is for detecting the relative position of drilling rod and unit head.
Embodiment two
Fig. 2 is the relevant drawings of the present embodiment, as shown in FIG., the difference of the present embodiment and embodiment one is, electro-hydraulic proportional valve in the present embodiment is proportional pressure-reducing valve 5, this routine reducing valve is connected on the guide's oil circuit between control handle 3 and hydraulic control main valve 2, controlled the pressure of guide oil by setting pressure relief value, in addition, the 26S Proteasome Structure and Function of the present embodiment and embodiment one is basically identical.
In the above two embodiments, when sensor receives after coherent signal issues controller, controller exports series of electrical signals to electro-hydraulic proportional valve, this electro-hydraulic proportional valve is obtained electric, by the Stress control of the guide oil of hydraulic control main valve 2 a lower value, thus main valve opening degree is reduced, the flow exported reduces, the lowering velocity of master winch is significantly reduced, and then drilling rod descending speed is reduced, realize drilling rod and contact with the soft of unit head.The electric signal that this controller exports has delays time to control, power-off after time delay certain hour, and electro-hydraulic proportional valve is resetted, and master winch lowering velocity recovers normal, thus reduces the impact on master winch lowering velocity.
In other embodiments, this control setup can also be hand adjustment mechanism.
Except above-mentioned master winch pay-off control system, the present invention also provides a kind of rotary drilling rig being provided with above-mentioned master winch pay-off control system, and the structural reference prior art of other each several part of this rotary drilling rig, repeats no more herein.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the master winch pay-off method of a rotary drilling rig, it is characterized in that, described method arranges electro-hydraulic proportional valve on guide's oil circuit of main valve, the pressure of guide oil is controlled by described electro-hydraulic proportional valve, to control the position of the spool of described main valve, thus control the aperture of valve port, and then control the rotating speed of the main winch motor (1) controlled by described main valve; When desired location transferred to by drilling rod, the pressure of the guide oil reducing described main valve is controlled by described electro-hydraulic proportional valve, the spool of main valve is moved, valve port opening reduces, and then reduce the flow entering the pressure oil of described main winch motor (1), reduce the rotating speed of described main winch motor (1), and then drilling rod descending speed is reduced, realize drilling rod and contact with the soft of unit head.
2. the master winch pay-off method of rotary drilling rig according to claim 1, it is characterized in that, the controlled electrical signal of described electro-hydraulic proportional valve derives from controller, and described controller is connected with sensor, and described sensor is for detecting the relative position of drilling rod and unit head.
3. the master winch pay-off control system of a rotary drilling rig, it is characterized in that, comprise main winch motor (1), for control described main winch motor (1) hydraulic control main valve (2), for control the guide oil break-make of described hydraulic control main valve (2) control handle (3), for controlling the electro-hydraulic proportional valve of described guide oil pressure and the control setup for controlling described electro-hydraulic proportional valve.
4. the master winch pay-off control system of rotary drilling rig according to claim 3, it is characterized in that, described electro-hydraulic proportional valve is proportional pressure control valve (4), described proportional pressure control valve (4) is connected in parallel on the guide's oil circuit between described control handle (3) and described hydraulic control main valve (2), is controlled the pressure of described guide oil by bypass overflow.
5. the master winch pay-off control system of rotary drilling rig according to claim 3, it is characterized in that, described electro-hydraulic proportional valve is proportional pressure-reducing valve (5), described proportional pressure-reducing valve (5) is connected on the guide's oil circuit between described control handle (3) and described hydraulic control main valve (2), is controlled the pressure of described guide oil by setting pressure relief value.
6. the master winch pay-off control system of the rotary drilling rig according to claim 3,4 or 5, is characterized in that, described control setup is controller, and described controller is connected with the sensor of the relative position for detecting drilling rod and unit head.
7. a rotary drilling rig, is characterized in that, described rotary drilling rig is provided with the master winch pay-off control system of the rotary drilling rig as described in claim 3 to 6 any one.
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| CN201210370623.9A CN102910549B (en) | 2012-09-28 | 2012-09-28 | Rotary drilling rig and main winch pay-off method and pay-off control system thereof |
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| CN201210370623.9A CN102910549B (en) | 2012-09-28 | 2012-09-28 | Rotary drilling rig and main winch pay-off method and pay-off control system thereof |
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| CN102910549B true CN102910549B (en) | 2015-05-13 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103640975B (en) * | 2013-12-03 | 2015-08-12 | 中联重科股份有限公司 | Hydraulic control handle system |
| CN104391516B (en) * | 2014-10-17 | 2017-06-20 | 华中科技大学 | The method for control speed and system of the underwater moving body of hydraulic wireline winch flexible drawing |
| CN105240349B (en) * | 2015-09-21 | 2018-01-26 | 北京中车重工机械有限公司 | A kind of rotary drilling rig and its hydraulic control system |
| CN111115477A (en) * | 2019-12-12 | 2020-05-08 | 上海中联重科桩工机械有限公司 | Main winch lifting automatic speed reduction control system and rotary drilling rig |
| CN112593916A (en) * | 2020-12-07 | 2021-04-02 | 北京三一智造科技有限公司 | Drilling regulation and control method and device and rotary drilling equipment |
| CN112593917B (en) * | 2020-12-07 | 2024-03-29 | 北京三一智造科技有限公司 | Rotary drilling rig control method and device, rotary drilling rig and readable storage medium |
| CN113023603B (en) * | 2021-05-25 | 2021-08-17 | 徐州徐工基础工程机械有限公司 | Winch control device and method and underground continuous wall construction equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100641393B1 (en) * | 2004-12-07 | 2006-11-01 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | Hydraulic control circuit and method thereof |
| CN2878667Y (en) * | 2005-12-26 | 2007-03-14 | 北京市三一重机有限公司 | Rotary control system |
| KR100929420B1 (en) * | 2006-12-28 | 2009-12-03 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | Boom shock absorber of excavator and its control method |
| CN101672178B (en) * | 2009-09-27 | 2012-09-05 | 内蒙古北方重型汽车股份有限公司 | Touch-down self-stopping device of drill rod of rotary drilling rig |
| CN102424336B (en) * | 2011-11-25 | 2014-04-16 | 北京市三一重机有限公司 | Rotary drilling rig and main winch placing down speed control device thereof |
| CN202415059U (en) * | 2011-11-25 | 2012-09-05 | 北京市三一重机有限公司 | Rotary drilling rig and main winch lowering speed control device thereof |
| CN102515049B (en) * | 2011-12-22 | 2014-05-28 | 北京市三一重机有限公司 | Rotary drilling machine, control method for descending of main winch of rotary drilling machine and main winch descending control system of rotary drilling machine |
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Effective date of registration: 20180913 Address after: 102200 3 floor, 6 building, 8 North Road, Huilongguan Town, Changping District, Beijing Patentee after: Beijing 31 wisdom Manufacturing Technology Co., Ltd. Address before: 410100 31 industrial city, Changsha economic and Technological Development Zone, Hunan Patentee before: Sanyi Heavy Industry Co., Ltd. |