CN204454311U - A kind of rotary drilling rig and elevator follow-up control device thereof - Google Patents
A kind of rotary drilling rig and elevator follow-up control device thereof Download PDFInfo
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- CN204454311U CN204454311U CN201420868387.8U CN201420868387U CN204454311U CN 204454311 U CN204454311 U CN 204454311U CN 201420868387 U CN201420868387 U CN 201420868387U CN 204454311 U CN204454311 U CN 204454311U
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- 238000005553 drilling Methods 0.000 title claims abstract description 20
- 239000010705 motor oil Substances 0.000 claims abstract description 23
- 239000003921 oil Substances 0.000 claims description 31
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 238000009530 blood pressure measurement Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
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Abstract
The utility model discloses a kind of rotary drilling rig and elevator follow-up control device thereof.This elevator follow-up control device comprises hoist motor oil circuit, the first work pressure tap connection control valve in hoist motor oil circuit; Control cock also connects the second work pressure tap in hoist motor oil circuit; Wherein, described control cock comprises two mode of operations, the first mode of operation and the second mode of operation; In the first operative state, described first work pressure tap and described second pressure tap that works is in off-state; In a second operative state, described first work pressure tap and described second pressure tap that works is communicated with.By connecting a control cock between two work pressure tap of hoist motor, can control two actuator ports and be communicated with in vertical mast process, realize motor servo antrol, structure is simple, is easy to realize the servo antrol to hoist motor.
Description
Technical Field
The utility model relates to an engineering machine tool technical field, in particular to dig rig soon and hoist follow-up controlling means thereof.
Background
At present, a main winch and an auxiliary winch are arranged on a chassis in a rear-mounted mode by a rotary drilling rig, the winch needs to be controlled to release ropes due to the fact that the length of the steel wire ropes has variable quantity in the mast erecting process, the ropes need to be released manually, on one hand, the difficulty of operation is increased, on the other hand, the steel wire ropes can be pulled by the mast if the speed matching is not good, accident potential hazards are caused, and especially, the rope releasing speed is difficult to control in the automatic mast erecting process.
Chinese patent document CN201220092009 discloses a method for simultaneously controlling mast cylinder and hoisting by using an electric control handle, wherein a two-position electric control handle is used for simultaneously controlling an electromagnetic directional valve and a variable amplitude directional valve, so that a cylinder piston stretches and a variable amplitude hoisting rope retracts and retracts simultaneously. The rope winding and unwinding speed of the rope winding and unwinding device is automatically adjusted along with the rotation angle position of the mast.
However, when the control method is adopted, the lifting speed of the mast must be accurately matched with the rope winding and unwinding speed of the winch, otherwise, once the two speeds are different, safety accidents are easily caused, and the accurate matching of the two speeds is difficult to control in actual work.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problem that current hoist follow-up control is difficult to realize, the utility model provides a dig rig soon and hoist follow-up controlling means thereof.
On the one hand, the utility model provides a winch follow-up control device of a rotary drilling rig, which comprises a winch motor oil circuit, wherein a first working pressure measuring port in the winch motor oil circuit is connected with a control valve;
the control valve is also connected with a second working pressure measuring port in the oil path of the hoisting motor; the control valve comprises two working states, namely a first working state and a second working state;
in a first working state, the first working pressure measuring port and the second working pressure measuring port are in a disconnected state;
and in a second working state, the first working pressure measuring port is communicated with the second working pressure measuring port.
Further, the control valve is a floating solenoid valve.
Further, the flow rate of the float solenoid valve is greater than a predetermined flow rate.
Further, the control valve is a two-position four-way electromagnetic valve.
Furthermore, a pressure limiting valve is connected between a first working oil port and a second working oil port in the winch motor oil way.
Further, the pressure limiting valve comprises an electric control one-way valve and an overflow valve; wherein,
the first working oil port is connected with an oil inlet of the electric control one-way valve;
an oil outlet of the electric control one-way valve is connected with an oil inlet of the overflow valve;
and an oil return port of the overflow valve is connected with the second working oil port.
The utility model also provides a dig the rig soon, it is provided with foretell dig rig hoist follow-up controlling means soon to dig the rig soon.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model provides a winch follow-up control device of a rotary drilling rig, which comprises a winch motor oil circuit, wherein a first working pressure measuring port in the winch motor oil circuit is also connected with a control valve; the control valve is also connected with a second working pressure measuring port in an oil path of the hoisting motor; the control valve comprises two working states, namely a first working state and a second working state; in the first working state, the first working pressure measuring port and the second working pressure measuring port are in a disconnected state; and in a second working state, the first working pressure measuring port is communicated with the second working pressure measuring port. The control valve is connected between the two working pressure measuring ports of the hoisting motor, so that the two working pressure measuring ports can be controlled to be communicated in the mast erecting process, the motor follow-up control is realized, the structure is simple, and the follow-up control on the hoisting motor is easy to realize.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is the embodiment of the utility model provides an in dig rig hoist follow-up control device hydraulic pressure principle structure sketch map soon.
Description of reference numerals:
1. a winch motor oil circuit; 2. a floating solenoid valve; 3. a pressure limiting valve; 31. an electrically controlled check valve; 32. an overflow valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The preferred embodiments of the present invention will be further described with reference to the accompanying drawings:
the problem to current hoist follow-up control is difficult to the realization, the embodiment of the utility model provides a through the unsteady solenoid valve 2 of connecting a big flux between first work pressure measurement mouth MA at hoist motor oil circuit and second work pressure measurement mouth MB, first work pressure measurement mouth MA and second work pressure measurement mouth MB intercommunication can be controlled to the solenoid valve that floats, make first work hydraulic fluid port A and the second work hydraulic fluid port B in the hoist motor oil circuit communicate with each other, hydraulic oil circulates between first work hydraulic fluid port A and the second work hydraulic fluid port B through the unsteady solenoid valve in the hoist motor oil circuit, the hoist motor can free rotation under the load action, realize the hoist follow-up.
Specifically, as shown in fig. 1, the winch follow-up control device of the rotary drilling rig comprises a winch motor oil path 1, wherein a first working pressure measuring port MA in the winch motor oil path 1 is connected with a floating electromagnetic valve 2; the floating electromagnetic valve 2 is also connected with a second working pressure measuring port MB in the oil circuit 1 of the hoisting motor; the floating electromagnetic valve 2 comprises two working states, namely a first working state and a second working state; in the first working state, the first working pressure measuring port MA and the second working pressure measuring port MB are in a disconnected state; in the second working state, the first working pressure measuring port MA is communicated with the second working pressure measuring port MB.
The floating electromagnetic valve 2 is a floating electromagnetic valve with a large flow rate larger than a preset flow rate, and the specific structure is that the drift diameter of the floating electromagnetic valve 2 is larger than a preset value so as to meet the floating rotating speed of the hoisting motor.
The floating electromagnetic valve is a two-position four-way electromagnetic valve; of course, as other options, the floating solenoid valve may also select other large flow control valves as long as the following two working states are satisfied; in the first working state, the first working pressure measuring port MA and the second working pressure measuring port MB are in a disconnected state; in the second working state, the first working pressure measuring port MA is communicated with the second working pressure measuring port MB.
By adding the floating electromagnetic valve 2 in the winch motor oil circuit 1, the winch can be realized by communicating the floating electromagnetic valve 2 in the mast erecting process.
When standing mast speed and being greater than unsteady rope speed of unreeling, can not cause the accident for the protection hoist motor, the embodiment of the utility model provides a still be connected pressure-limiting valve 3 between first working fluid port A and the second working fluid port B in hoist motor oil circuit 1.
As shown in fig. 1, the pressure limiting valve 3 includes an electrically controlled check valve 31 and an overflow valve 32; the first working oil port A is connected with an oil inlet of the electric control one-way valve 31; the oil outlet of the electric control one-way valve 31 is connected with the oil inlet of the overflow valve 32; the oil return port of the overflow valve 32 is connected to the second working port B.
The pressure limiting valve 3 is connected between the first working oil port A and the second working oil port B of the winch motor oil circuit 1, when the mast erecting speed is higher than the floating rope releasing speed, the overflow is automatically realized at the oil port of the overflow valve 32, so that the safety of the winch motor is protected on one hand, and the mast is not tensioned by a steel wire rope on the other hand.
The working principle of the embodiment of the utility model is, as shown in fig. 1, dig the rig soon and adopt the rearmounted structure of hoist mostly, when founding the mast, along with the increase of distance between mast and the chassis, wire rope is along with being pulled out in addition, the hoist adopts the mode of floating to go out the rope this moment, be connected a big flux solenoid valve 2 that floats (the great solenoid valve that floats of latus rectum) between first work pressure measurement mouth MA in hoist motor oil circuit 1 and second work pressure measurement mouth MB promptly, the speed that the hoist goes out the rope receives founds mast speed automatic control, avoid because go out the rope speed with found mast speed inconsistent and lead to the occurence of failure. In order to prevent the floating electromagnetic valve 2 from causing damage to the internal structure due to the pressure build-up of the motor caused by insufficient flux or damage to the steel wire rope and the mast oil cylinder caused by the reverse pulling of the steel wire rope, a pressure limiting valve 3 is arranged between a first working oil port A and a second working oil port B in the winch motor oil circuit 1, and when the pressure of the first working oil port A is overlarge, the overflow valve 32 is used for overflowing to protect the safety of the system.
The embodiment of the utility model provides a still provide a dig the rig soon, it is provided with foretell dig rig hoist follow-up control device soon to dig the rig soon.
The winch follow-up control device of the rotary drilling rig has the beneficial effects, so the rotary drilling rig provided with the winch follow-up control device of the rotary drilling rig also has the same beneficial effects, and specific embodiments can refer to the description of the winch follow-up control device of the rotary drilling rig, and are not repeated herein.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A winch follow-up control device of a rotary drilling rig comprises a winch motor oil way (1), and is characterized in that a first working pressure measuring port (MA) in the winch motor oil way (1) is connected with a control valve;
the control valve is also connected with a second working pressure measuring port (MB) in the winch motor oil way (1); the control valve comprises two working states, namely a first working state and a second working state;
in a first working state, the first working pressure measuring port (MA) and the second working pressure measuring port (MB) are in a disconnected state;
in a second operating state, the first operating pressure measuring port (MA) is in communication with the second operating pressure measuring port (MB).
2. The winch follow-up control device of the rotary drilling rig according to claim 1, wherein the control valve is a floating solenoid valve (2).
3. The winch follow-up control device of the rotary drilling rig according to claim 2, wherein the drift diameter of the floating electromagnetic valve (2) is larger than a preset value.
4. The winch follow-up control device of the rotary drilling rig according to claim 1, wherein the control valve is a two-position four-way solenoid valve.
5. The hoisting follow-up control device of the rotary drilling rig according to any one of claims 1 to 4, characterized in that a pressure limiting valve (3) is connected between a first working oil port (A) and a second working oil port (B) in the hoisting motor oil circuit (1).
6. The winch follow-up control device of the rotary drilling rig according to claim 5, wherein the pressure limiting valve (3) comprises an electric control one-way valve (31) and an overflow valve (32); wherein,
the first working oil port (A) is connected with an oil inlet of the electric control one-way valve (31);
an oil outlet of the electric control one-way valve (31) is connected with an oil inlet of the overflow valve (32);
and an oil return port of the overflow valve (32) is connected with the second working oil port (B).
7. A rotary drilling rig, characterized in that the rotary drilling rig is provided with the winch follow-up control device of the rotary drilling rig according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420868387.8U CN204454311U (en) | 2014-12-31 | 2014-12-31 | A kind of rotary drilling rig and elevator follow-up control device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420868387.8U CN204454311U (en) | 2014-12-31 | 2014-12-31 | A kind of rotary drilling rig and elevator follow-up control device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204454311U true CN204454311U (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420868387.8U Active CN204454311U (en) | 2014-12-31 | 2014-12-31 | A kind of rotary drilling rig and elevator follow-up control device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577715A (en) * | 2020-05-31 | 2020-08-25 | 北京三一智造科技有限公司 | Winch tension control device, rotary drilling rig and winch tension control method |
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2014
- 2014-12-31 CN CN201420868387.8U patent/CN204454311U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577715A (en) * | 2020-05-31 | 2020-08-25 | 北京三一智造科技有限公司 | Winch tension control device, rotary drilling rig and winch tension control method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |