CN203641141U - Novel drill dropping preventing control device of rotary drilling rig - Google Patents
Novel drill dropping preventing control device of rotary drilling rig Download PDFInfo
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- CN203641141U CN203641141U CN201320543728.XU CN201320543728U CN203641141U CN 203641141 U CN203641141 U CN 203641141U CN 201320543728 U CN201320543728 U CN 201320543728U CN 203641141 U CN203641141 U CN 203641141U
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Abstract
The utility model discloses a novel drill dropping preventing control device of a rotary drilling rig, which is installed between the oil inlet and the oil outlet of a two-way main winch motor. The control device is characterized by comprising a valve block (7), and an electromagnetic directional valve (1), a pilot operated directional control valve (2), a pressure reducing overflow valve (3), a shuttle valve (4), balancing valves (5) and one-way valves (6) which are in splicing connection with the valve block (7) through threads, wherein the balancing valves (5) comprise a first balancing valve (5-1) and a second balancing valve (5-2); the one-way valves (6) comprise a first one-way valve (6-1), a second one-way valve (6-2) and a third one-way valve (6-3). The control device can effectively prevent drill dropping and pressure impact of a main winch, protects a main winch motor speed reducer, improves the operating efficiency, reduces the construction cost of the rotary drilling rig, prevents the motor from sucking air and being eroded, prolongs the service life of hydraulic components, has a compact structure, and is safe and reliable.
Description
Technical field
The utility model relates to a control gear being made up of selector valve, decompression relief valve, equilibrium valve, one-way valve, shuttle valve and valve base plate, is mainly used in rotary drilling rig master winch, prevents the generation of brill, compression shock and suck erosion phenomenon.
Background technique
Along with the high speed development of global economy, the continuing of infrastructure scope widened, and what people-oriented and the theory of protection of the environment and relevant laws and regulations are implemented continually strengthens, make pile foundation particularly cast-in-situ concrete poured pile foundation be widely used.
Rotary drilling rig is the new high-tech product of piling machinery technical field, because its efficiency is high, pollute less, automatization level is high, flexible, the many features of function combination, adapt to the needs of comprehensive development, in cast-in-situ concrete poured pile driving construction, occupied the position of main force's type at home and abroad.
Existing rotary drilling rig mainly realizes by master winch that drilling rod is transferred and float function, and in its stopped process, master winch easily falls to bore phenomenon.Owing to master winch not being transferred at present and the hold function of floating is carried out appropriate design and control, fall to bore often to cause master winch motor because of overspeed operation, inhale empty, hydraulic shock and damage or reduce working life.In addition, fall to bore often to cause master winch speed reducer hypervelocity and brake block Fast Wearing or sintering, the working life of reducing speed reducer.
Therefore, how to overcome this defect, by one group of control valve group can effectively avoid rotary drilling rig master winch drilling rod transfer or the stopped process of floating in fall to bore phenomenon, be a urgent problem.
Summary of the invention
In order to overcome the deficiency in above-mentioned technology, the utility model provides one can effectively avoid rotary drilling rig master winch to transfer or float to fall brill, hydraulic shock and suck in stopping decentralization process and lose phenomenon at drilling rod, increase work efficiency, reducing hydraulic element damages, increase the service life, this mechanism compact structure, safe and reliable.
The purpose of this utility model is achieved in that
Rotary drilling rig Novel anti-dropping bores control gear, be arranged between two-direction, main hoist motor oil inlet and outlet, it is characterized in that: comprise valve piece 7, and the solenoid directional control valve 1 being connected with valve piece 7 thread cartridges, pilot operated directional control valve 2, decompression relief valve 3, shuttle valve 4, equilibrium valve 5, one-way valve 6.
Equilibrium valve 5 comprises the first equilibrium valve 5-1, the second equilibrium valve 5-2;
One-way valve 6 comprises the first one-way valve 6-1, the second one-way valve 6-2, the 3rd one-way valve 6-3;
Described shuttle valve 4 is connected with the first equilibrium valve 5-1; Simultaneously in parallel with the first one-way valve 6-1 and the second one-way valve 6-2; The first one-way valve 6-1 and the second one-way valve 6-2 series connection;
The first described one-way valve 6-1 and the second one-way valve 6-2 are in parallel with the second equilibrium valve 5-2 and the 3rd one-way valve 6-3, simultaneously the second equilibrium valve 5-2 and the 3rd one-way valve 6-3 series connection;
The pressure-bearing of described valve piece 7 is 350-420bar, and the junction surface roughness of valve piece 7 is 1.6.
actively beneficial effect:the utility model can effectively avoid master winch to fall to bore and compression shock, and protection master winch motor reducer, increases work efficiency, and reduces rotary drilling rig construction cost; Avoid the erosion of motor suck, extend the working life of hydraulic element; Compact structure, safe and reliable.
Brief description of the drawings
Fig. 1 is structural representation one of the present utility model;
Fig. 2 is structural representation two of the present utility model;
Fig. 3 is control principle drawing of the present utility model;
In figure, be: solenoid directional control valve 1, pilot operated directional control valve 2, decompression relief valve 3, shuttle valve 4, the first equilibrium valve 5-1, the second equilibrium valve 5-2, the first one-way valve 6-1, the second one-way valve 6-2, the 3rd one-way valve 6-3, valve piece 7.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
As shown in Figure 1 and Figure 2, rotary drilling rig Novel anti-dropping bores control gear, be arranged between two-direction, main hoist motor oil inlet and outlet, it is characterized in that: comprise valve piece 7, and the solenoid directional control valve 1 being connected with valve piece 7 thread cartridges, pilot operated directional control valve 2, decompression relief valve 3, shuttle valve 4, equilibrium valve 5, one-way valve 6.
As shown in Figure 3, equilibrium valve 5 comprises the first equilibrium valve 5-1, the second equilibrium valve 5-2;
One-way valve 6 comprises the first one-way valve 6-1, the second one-way valve 6-2, the 3rd one-way valve 6-3;
Described shuttle valve 4 is connected with the first equilibrium valve 5-1; Simultaneously in parallel with the first one-way valve 6-1 and the second one-way valve 6-2; The first one-way valve 6-1 and the second one-way valve 6-2 series connection;
The first described one-way valve 6-1 and the second one-way valve 6-2 are in parallel with the second equilibrium valve 5-2 and the 3rd one-way valve 6-3, simultaneously the second equilibrium valve 5-2 and the 3rd one-way valve 6-3 series connection;
The pressure-bearing of described valve piece 7 is 350-420bar, and the junction surface roughness of valve piece 7 is 1.6.
As shown in Figure 3, first we analyze the working principle of the anti-lost brill control gear of rotary drilling rig, in master winch decentralization process, corresponding high pressure is sent into decompression relief valve 3 by shuttle valve 4, enter speed reducer release parking brake through pilot operated directional control valve 2 and solenoid directional control valve 1, corresponding high pressure guide opens the first equilibrium valve 5-1 to guarantee transferring stable action without impact slowly through the internally-damped aperture of the first equilibrium valve 5-1.Transfer in stopped process at master winch, corresponding high pressure guide is used for improving the shut-in time characteristic of the first equilibrium valve 5-1 through the one-way valve draining of the internally-damped aperture of the first equilibrium valve 5-1 and side thereof, make itself and the shut-in time characteristic of main valve match to guarantee that nothing falls to bore the generation of phenomenon.The first one-way valve 6-1 and the second one-way valve 6-2, as carrying out repairing to low voltage side in real time, prevent that the hypervelocity and the moment suction that in master winch decentralization process, occur are empty.Float in lower process at master winch, external pilot first enters speed reducer through solenoid directional control valve 1 and discharges parking brake, then opens slowly the second equilibrium valve 5-2 through the internally-damped aperture of the second equilibrium valve 5-2 and transfer stable action without impact to guarantee to float.Float and transfer in stopped process at master winch, external pilot is used for improving the shut-in time characteristic of the second equilibrium valve 5-2 through the one-way valve draining of the internally-damped aperture of the second equilibrium valve 5-2 and side thereof, prevent from sneaking off and boring phenomenon and quick closedown and cause compression shock because of slowly closing.The 3rd one-way valve 6-3 is protection the second equilibrium valve 5-2 oil outlet effectively, avoids from the compression shock in master winch decentralization process.
Described shuttle valve 4 is connected with the first equilibrium valve 5-1; Simultaneously in parallel with the first one-way valve 6-1 and the second one-way valve 6-2; The first one-way valve 6-1 and the second one-way valve 6-2 series connection;
The first one-way valve 6-1 and the second one-way valve 6-2 are in parallel with the second equilibrium valve 5-2 and the 3rd one-way valve 6-3, simultaneously the second equilibrium valve 5-2 and the 3rd one-way valve 6-3 series connection;
Above embodiment is only for illustrating preferred implementation of the present utility model; but the utility model is not limited to above-mentioned mode of execution; in the ken possessing at described field those of ordinary skill; any amendment of doing within spirit of the present utility model and principle, be equal to and substitute and improvement etc., within it all should be encompassed in the technological scheme scope of the utility model request protection.
Claims (2)
1. rotary drilling rig Novel anti-dropping bores control gear, be arranged between two-direction, main hoist motor oil inlet and outlet, it is characterized in that: comprise valve piece (7), and the solenoid directional control valve (1) being connected with valve piece (7) thread cartridge, pilot operated directional control valve (2), decompression relief valve (3), shuttle valve (4), equilibrium valve (5), one-way valve (6);
Described equilibrium valve (5) comprises the first equilibrium valve (5-1), the second equilibrium valve (5-2);
Described one-way valve (6) comprises the first one-way valve (6-1), the second one-way valve (6-2), the 3rd one-way valve (6-3);
Described shuttle valve (4) is connected with the first equilibrium valve (5-1); Simultaneously in parallel with the first one-way valve (6-1) and the second one-way valve (6-2); The first one-way valve (6-1) and the second one-way valve (6-2) series connection;
Described the first one-way valve (6-1) and the second one-way valve (6-2) are in parallel with the second equilibrium valve (5-2) and the 3rd one-way valve (6-3), simultaneously the second equilibrium valve (5-2) and the series connection of the 3rd one-way valve (6-3).
2. rotary drilling rig Novel anti-dropping according to claim 1 bores control gear, it is characterized in that: the pressure-bearing of described valve piece (7) is 350-420bar, and the junction surface roughness of valve piece (7) is 1.6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320543728.XU CN203641141U (en) | 2013-09-03 | 2013-09-03 | Novel drill dropping preventing control device of rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320543728.XU CN203641141U (en) | 2013-09-03 | 2013-09-03 | Novel drill dropping preventing control device of rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203641141U true CN203641141U (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320543728.XU Expired - Lifetime CN203641141U (en) | 2013-09-03 | 2013-09-03 | Novel drill dropping preventing control device of rotary drilling rig |
Country Status (1)
| Country | Link |
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| CN (1) | CN203641141U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115010026A (en) * | 2022-07-12 | 2022-09-06 | 恒天九五重工有限公司 | Method for monitoring main winch sucking idle sliding rod of rotary drilling rig |
-
2013
- 2013-09-03 CN CN201320543728.XU patent/CN203641141U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115010026A (en) * | 2022-07-12 | 2022-09-06 | 恒天九五重工有限公司 | Method for monitoring main winch sucking idle sliding rod of rotary drilling rig |
| CN115010026B (en) * | 2022-07-12 | 2023-04-18 | 恒天九五重工有限公司 | Method for monitoring main winch sucking idle sliding rod of rotary drilling rig |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |
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| CX01 | Expiry of patent term |