CN102410010A - Rotary drilling rig and main winding floating system thereof - Google Patents
Rotary drilling rig and main winding floating system thereof Download PDFInfo
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- CN102410010A CN102410010A CN2011103731151A CN201110373115A CN102410010A CN 102410010 A CN102410010 A CN 102410010A CN 2011103731151 A CN2011103731151 A CN 2011103731151A CN 201110373115 A CN201110373115 A CN 201110373115A CN 102410010 A CN102410010 A CN 102410010A
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Abstract
The invention provides a rotary drilling rig and a main winding floating system thereof. The main winding floating system comprises a main winding motor, a first reversing valve and a flow rate control device, wherein the first reversing valve is used for controlling the switching on and off of two oil ports of the main winding motor; the flow rate control device is used for controlling the flow rate of the two oil ports; two ends of the flow rate control device are respectively connected with the first reversing valve and the first of the two oil ports; or two ends of the flow rate control device are respectively connected with the first reversing valve and the second of the two oil ports. According to the rotary drilling rig and the main winding floating system disclosed by the invention, the flow rate of a floating loop can be controlled, thereby regulating the speed of stably descending a drill pipe and improving the safety of the floating system of the rotary drilling rig.
Description
Technical field
The present invention relates to engineering machinery field, be specifically related to a kind of rotary drilling rig and master winch floating system thereof.
Background technology
Rotary drilling rig master winch floating system mainly is when being used for rotary drilling rig and creeping into, and two hydraulic fluid ports of master winch motor are connected, and the drilling rod deadweight of utilization own drives the master winch revolution, and then the process that drilling rod is transferred.Utilized the drilling rod deadweight to transfer drilling rod because master winch floats, to have pressurizeed, simple and convenient, reliability is high, has solved the harmony problem of master winch and pressurization well, and reduced the machine energy consumption.Based on above-mentioned advantage, it has obtained using widely in rotary drilling rig.It comprises master winch motor, solenoid operated directional valve and constant displacement pump; The concrete course of work is summarized as follows: when drilling rod contacts foot of hole; Solenoid operated directional valve commutates, and two hydraulic fluid ports of master winch motor are connected, and the master winch motor is in quick condition; Under the effect of gravity, drilling rod falls at drilling rod.
Yet, be suspended from drill bit and (still do not contact to earth) in the hole when touching hole wall, falseness can occur and contact to earth.At this moment, possibly open master winch because of maloperation and float, drilling rod drives the free-falling of master winch motor under the effect of gravity like this; At this moment master winch is in state out of control, and under the effect of acceleration, speed is more and more faster, when possessing certain power potential energy; Destroy the drilling rod hanging steel rope, pound in the hand-hole, the serious brill accident of falling takes place; Cause damaging rig, influence programming, increased the danger of system.
Summary of the invention
In order to overcome the above-mentioned defective and the deficiency of prior art; First purpose of the present invention is to provide the rotary drilling rig master winch floating system of the lowering velocity of a kind of effective control drilling rod when quick condition; Comprise: the master winch motor, be used to control first reversal valve of two hydraulic fluid port break-makes of master winch motor, the master winch floating system also comprises: the flow control device that is used for controlling two hydraulic fluid port flows; The two ends of flow control device connect first hydraulic fluid port in first reversal valve and two hydraulic fluid ports respectively; Perhaps the two ends of flow control device connect second hydraulic fluid port in first reversal valve and two hydraulic fluid ports respectively.
Further, flow control device is flow speed control valve or reducing valve.
Further, flow control device is a proportional velocity regulating valve.
Further, first reversal valve is the two-position four-way solenoid operated directional valve.
Further, the master winch floating system also comprises brake, second reversal valve, the constant displacement pump that is used to control the master winch motor; Constant displacement pump connects brake through second reversal valve, and second reversal valve is used to control brake and is connected with fuel tank and perhaps is used to control brake and is connected with constant displacement pump.
Further, the master winch floating system also comprises: first shuttle valve and second shuttle valve; Corresponding respectively first hydraulic fluid port and second hydraulic fluid port that connects the master winch motor of two air inlet ports of first shuttle valve, the outlet of first shuttle valve connects an air inlet port of second shuttle valve; Another air inlet port of second shuttle valve connects second reversal valve, and the outlet of second shuttle valve connects brake.
Further, the master winch floating system also comprises: bidirectional balanced valve, the two ends of bidirectional balanced valve connect first hydraulic fluid port and second hydraulic fluid port of master winch motor respectively.
In order to overcome the above-mentioned defective and the deficiency of prior art, second purpose of the present invention is to provide a kind of rotary drilling rig, comprises above-mentioned master winch floating system.
Rotary drilling rig master winch floating system embodiment of the present invention is through the adjustment of the flow control device between the hydraulic fluid port that is arranged on reversal valve and master winch motor flow, thus the speed that the setting drilling rod is steadily transferred, the safety that improves the rotary drilling rig floating system.
Description of drawings
Fig. 1 is the structural representation of rotary drilling rig master winch floating system first embodiment of the present invention;
Shown in Figure 2 is the output characteristic curve figure of flow speed control valve;
Fig. 3 is the structural representation of rotary drilling rig master winch floating system second embodiment of the present invention;
Fig. 4 is the structural representation of rotary drilling rig master winch floating system the 3rd embodiment of the present invention.
The specific embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
As shown in Figure 1, rotary drilling rig master winch floating system first embodiment of the present invention comprises: master winch motor 1, two-position four-way solenoid operated directional valve 2, flow speed control valve 3; Solenoid operated directional valve 2 is used to control first hydraulic fluid port A of master winch motor 1 and the break-make of the second hydraulic fluid port B; The two ends of this flow speed control valve 3 connect the two-position four-way solenoid operated directional valve 2 and the first hydraulic fluid port A respectively, are used for controlling the flow of the first hydraulic fluid port A and the second hydraulic fluid port B.Being communicated with the second hydraulic fluid port B at the two-position four-way solenoid operated directional valve 2 controls first hydraulic fluid port A is that the unsteady loop of formation master winch can utilize the deadweight of weight to fall at this moment.
Wherein, flow speed control valve 3 is flow control valves that a kind of choke valve and uniform-pressure-drop valve combine, and its output curve diagram is as shown in Figure 2, promptly when flow reaches certain value; Basically can maintain a constant value, thereby guarantee the constant of flow, work as drilling rod like this under the effect of gravity; When driving master winch motor 1 whereabouts, the flow speed control valve 3 effectively flows in the unsteady loop of control maintains a steady state value, thereby makes the lowering velocity of drilling rod keep controlled; And can when certain lowering velocity, reach equilibrium state, keep the constant speed of a safety to fall; Because mechanical disorder or operator maloperation are opened and floated, cause the brill accident to avoid.Preferably, above-mentioned flow speed control valve 3 is a proportional velocity regulating valve.
It is understandable that, can also adopt the flow control device of other types, like reducing valve.In addition, two-position four-way solenoid operated directional valve 2 can be the solenoid operated directional valve of other models, can also be for the reversal valve of other types, like hydraulicdirectional control valve.
As shown in Figure 3, during concrete operations, can also change the installation site of flow speed control valve 3, the two ends of this flow speed control valve 3 connect the two-position four-way solenoid operated directional valve 2 and the second hydraulic fluid port B respectively.
As shown in Figure 4, on the basis of structure shown in Figure 1, the master winch floating system also comprises can comprise brake 4, two-position four-way solenoid operated directional valve 5, the constant displacement pump 9 that is used to control master winch motor 1; Constant displacement pump 9 connects brakes 4 through two-position four-way solenoid operated directional valve 5, and two-position four-way solenoid operated directional valve 5 is used to control brake 4 and is connected with fuel tank and perhaps controls brake 4 and be connected with constant displacement pump 9.During concrete operations, this two-position four-way solenoid operated directional valve 5 can be the reversal valve of other types.
Preferably, the master winch floating system also comprises: first shuttle valve 6 and second shuttle valve 7; The corresponding respectively first hydraulic fluid port A and the second hydraulic fluid port B that connects master winch motor 1 of two air inlet ports of first shuttle valve 6, the outlet of first shuttle valve 6 connects an air inlet port of second shuttle valve 7; The outlet that another air inlet port of second shuttle valve 7 connects two-position four way change valve 5, the second shuttle valves 7 connects brake 4.
Preferably, above-mentioned master winch floating system also comprises bidirectional balanced valve 8, and the two ends of this bidirectional balanced valve 8 connect the first hydraulic fluid port A and the second hydraulic fluid port B of master winch motor 1 respectively.
Certainly, during concrete operations, the flow speed control valve 3 among Fig. 4 also can reversing of position, connects the two-position four-way solenoid operated directional valve 2 and the second hydraulic fluid port B respectively like its two ends.Above-mentioned each embodiment of master winch floating system can be applied to each rotary drilling rig.
Rotary drilling rig master winch floating system of the present invention is through the adjustment of the flow control device between the hydraulic fluid port that is arranged on reversal valve and master winch motor flow; Make the flow in the loop of floating reach equilibrium state; Thereby set up the speed that drilling rod is steadily transferred, improve the safety of rotary drilling rig floating system, avoided existing rotary drilling rig master winch to float and fallen the defective of brill accident easily; Simple and practical, reliable, be easy to promote.
More than be merely preferred embodiment of the present invention, or not all within spirit of the present invention and principle in order to restriction the present invention, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the master winch floating system of a rotary drilling rig; Comprise: master winch motor (1), be used to control first reversal valve of two hydraulic fluid port break-makes of said master winch motor (1); It is characterized in that said master winch floating system also comprises: the flow control device that is used for controlling said two hydraulic fluid port flows;
The two ends of said flow control device connect first hydraulic fluid port (A) in said first reversal valve and said two hydraulic fluid ports respectively; Perhaps
The two ends of said flow control device connect second hydraulic fluid port (B) in said first reversal valve and said two hydraulic fluid ports respectively.
2. master winch floating system according to claim 1 is characterized in that, said flow control device is flow speed control valve (3) or reducing valve.
3. master winch floating system according to claim 2 is characterized in that, said flow control device is a proportional velocity regulating valve.
4. require each described master winch floating system among the 1-3 according to aforesaid right, it is characterized in that said first reversal valve is two-position four-way solenoid operated directional valve (2).
5. require each described master winch floating system among the 1-3 according to aforesaid right, it is characterized in that, also comprise the brake (4), second reversal valve, the constant displacement pump (9) that are used to control said master winch motor (1); Said constant displacement pump (9) connects said brake (4) through said second reversal valve, and said second reversal valve is used to control said brake (4) and is connected with fuel tank or is used to control said brake (4) and is connected with said constant displacement pump (9).
6. master winch floating system according to claim 5 is characterized in that, also comprises: first shuttle valve (6) and second shuttle valve (7); Corresponding respectively first hydraulic fluid port (A) and second hydraulic fluid port (B) that connects said master winch motor (1) of two air inlet ports of said first shuttle valve (6), the outlet of said first shuttle valve (6) connects an air inlet port of said second shuttle valve (7); Another air inlet port of said second shuttle valve (7) connects said second reversal valve, and the outlet of said second shuttle valve (7) connects said brake (4).
7. master winch floating system according to claim 6 is characterized in that, also comprises: bidirectional balanced valve (8), the two ends of said bidirectional balanced valve (8) connect first hydraulic fluid port (A) and second hydraulic fluid port (B) of said master winch motor (1) respectively.
8. a rotary drilling rig is characterized in that, comprises each described master winch floating system among the aforesaid right requirement 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110373115.1A CN102410010B (en) | 2011-11-22 | 2011-11-22 | Rotary drilling rig and main winding floating system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110373115.1A CN102410010B (en) | 2011-11-22 | 2011-11-22 | Rotary drilling rig and main winding floating system thereof |
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| CN102410010A true CN102410010A (en) | 2012-04-11 |
| CN102410010B CN102410010B (en) | 2015-07-08 |
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| CN201110373115.1A Active CN102410010B (en) | 2011-11-22 | 2011-11-22 | Rotary drilling rig and main winding floating system thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115521A (en) * | 2016-06-29 | 2016-11-16 | 玉柴桩工(常州)有限公司 | Winding of rotary drilling rig floating type controlled system and control method thereof |
| CN106365059A (en) * | 2016-08-30 | 2017-02-01 | 中煤科工集团西安研究院有限公司 | Hydraulic control system and method for winch of core drilling machine |
| CN107120081A (en) * | 2017-06-20 | 2017-09-01 | 湖南科技大学 | Rope salvaging device folding and unfolding speed control unit under water |
| CN108423589A (en) * | 2018-04-04 | 2018-08-21 | 三重工股份有限公司 | Winch floats system and rotary drilling rig for rotary drilling rig |
| CN108996414A (en) * | 2018-10-12 | 2018-12-14 | 崔洁 | A kind of tyre crane hoisting system and control method |
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| CN202000993U (en) * | 2011-03-31 | 2011-10-05 | 湖南奥盛特重工科技有限公司 | Novel main hoist floating system for rotary drilling rig |
| CN202370497U (en) * | 2011-11-22 | 2012-08-08 | 北京市三一重机有限公司 | Rotary digging drilling machine and main winch floating system of rotary digging drilling machine |
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US3381761A (en) * | 1964-10-14 | 1968-05-07 | Atlas Copco Ab | Automatic rock drilling means |
| CN101725589A (en) * | 2009-11-11 | 2010-06-09 | 北京市三一重机有限公司 | Hydraulic system and rotary drilling rig comprising same |
| CN101723274A (en) * | 2009-11-11 | 2010-06-09 | 北京市三一重机有限公司 | Main winch retracting and stretching control system of rotary drilling rig and rotary drilling rig |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115521A (en) * | 2016-06-29 | 2016-11-16 | 玉柴桩工(常州)有限公司 | Winding of rotary drilling rig floating type controlled system and control method thereof |
| CN106115521B (en) * | 2016-06-29 | 2019-04-19 | 玉柴桩工(常州)有限公司 | Winding of rotary drilling rig floating type controlled system and its control method |
| CN106365059A (en) * | 2016-08-30 | 2017-02-01 | 中煤科工集团西安研究院有限公司 | Hydraulic control system and method for winch of core drilling machine |
| CN107120081A (en) * | 2017-06-20 | 2017-09-01 | 湖南科技大学 | Rope salvaging device folding and unfolding speed control unit under water |
| CN108423589A (en) * | 2018-04-04 | 2018-08-21 | 三重工股份有限公司 | Winch floats system and rotary drilling rig for rotary drilling rig |
| CN108996414A (en) * | 2018-10-12 | 2018-12-14 | 崔洁 | A kind of tyre crane hoisting system and control method |
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| Publication number | Publication date |
|---|---|
| CN102410010B (en) | 2015-07-08 |
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