CN203547701U - Rotary drilling machine and mast sitting control system of same - Google Patents
Rotary drilling machine and mast sitting control system of same Download PDFInfo
- Publication number
- CN203547701U CN203547701U CN201320370162.5U CN201320370162U CN203547701U CN 203547701 U CN203547701 U CN 203547701U CN 201320370162 U CN201320370162 U CN 201320370162U CN 203547701 U CN203547701 U CN 203547701U
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- mast
- valve
- rotary drilling
- control system
- drilling rig
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- 238000005553 drilling Methods 0.000 title claims abstract description 35
- 239000003921 oil Substances 0.000 claims abstract description 61
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 10
- 230000006698 induction Effects 0.000 claims description 26
- 238000009434 installation Methods 0.000 claims description 26
- 239000002828 fuel tank Substances 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008602 contraction Effects 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000009471 action Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 230000002411 adverse Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000002910 structure generation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model provides a rotary drilling machine and a mast sitting control system of the same. The mast sitting control system of the rotary drilling machine comprises an oil cylinder with variable amplitude, a balance valve, a control valve with variable amplitude, a controller, a current limiter, a first solenoid valve, a second solenoid valve, a first sensing device and a second sensing device, wherein the current limiter is arranged in a side-connection to an oil way between a rodless cavity of the oil cylinder with variable amplitude and the balance valve; the first solenoid valve is arranged on a guiding oil way of the control valve with variable amplitude; the second solenoid valve is arranged on an oil way between the current limiter and an oil tank; the controllers control break of the first solenoid valve and a connection of the second solenoid valve solenoid valve after the mast is lowered to a preset position according to signals of the first sending device and the second sensing device, so hydraulic oil in a rod cavity can run back the oil tank via the current limiter and automatic sitting of the mast is achieved; and by the use of the mast sitting control system, disfavored effects on the oil cylinder with variable amplitude and a related mechanical structure due to difficult accurate control of contraction amount of the oil cylinder with the variable amplitude are avoided, so service life of the mechanical structure is prolonged.
Description
Technical field
The utility model relates to engineering machinery field, particularly a kind of rotary drilling rig and mast thereof the control system of taking a seat.
Background technology
At present, in whole rotary drilling rig industry, mast is set level to the mode that the operation of falling in support platform is manual operation amplitude oil cylinder, which is difficult to accurately control the amount of contraction of amplitude oil cylinder.If it is less that luffing declines, mast can not be fallen in support platform completely, and transportation middle mast oil cylinder need to bear larger pressure; If it is on the high side that luffing declines,, in transportation, amplitude oil cylinder can produce a power of dragging downwards to mast always.Both of these case all causes adverse effect to amplitude oil cylinder and associated mechanical structure, need to avoid.
Utility model content
In view of this, the utility model is intended to propose a kind of rotary drilling rig and mast thereof the control system of taking a seat, and with the amount of contraction solving because of amplitude oil cylinder, is difficult to accurately control the adverse effect to amplitude oil cylinder and associated mechanical structure generation.
For achieving the above object, the technical solution of the utility model is achieved in that
On the one hand, the utility model provides a kind of mast of rotary drilling rig control system of taking a seat, comprise amplitude oil cylinder, equalizing valve and luffing control valve, described luffing control valve is the hydraulic pilot reversal valve controlled by pilot handle, and described control system also comprises controller, current-limiting apparatus, the first electromagnetic valve, the second electromagnetic valve, for detection of the mast of rotary drilling rig and the first induction installation of support platform relative position and the second induction installation of controlling state for detection of described pilot handle; Described current-limiting apparatus is other to be connected on the rodless cavity and the oil circuit between equalizing valve of described amplitude oil cylinder; Described the first electromagnetic valve is arranged on guide's oil circuit that described luffing control valve shrinks for controlling described amplitude oil cylinder; Described the second electromagnetic valve is arranged on described current-limiting apparatus to the oil circuit between fuel tank; Described the first electromagnetic valve, the second electromagnetic valve, the first induction installation and described the second induction installation are all electrically connected to described controller; Described controller is used for according to the signal of described the first induction installation and the second induction installation, after described mast is transferred to predeterminated position, controlling described the first electromagnetic valve disconnects and controls described the second electromagnetic valve and connect, make the hydraulic oil of the rod chamber of described amplitude oil cylinder flow back to fuel tank by described current-limiting apparatus, and then realize certainly taking a seat of mast.
Further, described the first induction installation is limit switch or range sensor.
Further, the parts of described the first induction installation are arranged in described mast and described support platform, or are arranged on the cylinder barrel, piston rod of described amplitude oil cylinder.
Further, described the second induction installation is pressure sensor, and described pressure sensor is arranged on the control end of described luffing control valve to the oil circuit between described the first electromagnetic valve.
Further, described the second induction installation is microswitch, and described microswitch is arranged on described pilot handle place.
Further, described the first electromagnetic valve is the reversal valve with oil-in, oil return opening and at least one actuator port, and a described oil-in is communicated with guide's oil circuit of described luffing control valve and oil-in is normal open state.
Further, described the second electromagnetic valve is to be at least the reversal valve of two-way, and described the second electromagnetic valve is normal off state.
Further, described luffing control valve is load-sensitive valve, and Median Function is Y type.
Further, described current-limiting apparatus is damping unit, flow speed control valve or choke valve.
On the other hand, the utility model also provides a kind of rotary drilling rig, the mast that described rotary drilling rig the is provided with rotary drilling rig as above control system of taking a seat.
With respect to prior art, the utlity model has following advantage:
The mast of the rotary drilling rig described in the utility model control system of taking a seat, controller can be controlled the first electromagnetic valve and disconnects and control the second electromagnetic valve and connect after mast is transferred to predeterminated position, make the hydraulic oil of the rod chamber of described amplitude oil cylinder flow back to fuel tank by current-limiting apparatus, realize certainly taking a seat of mast, avoided being difficult to accurately control the adverse effect to amplitude oil cylinder and associated mechanical structure generation, the application life of having improved described frame for movement because of the amount of contraction of amplitude oil cylinder; And control system described in the utility model compared with prior art, the controller that controller can directly carry with rotary drilling rig, a current-limiting apparatus, two electromagnetic valves and two sensors have only been set up in addition, simple in structure, cost is low but safe, at mast, certainly take a seat in process, do not need to provide extra power, relative energy-saving.
Accompanying drawing explanation
The accompanying drawing that forms a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the take a seat schematic diagram of control system of the mast of the rotary drilling rig described in the utility model embodiment.
Description of reference numerals:
1-amplitude oil cylinder, 2-equalizing valve, 3-luffing control valve, 4-controller, 5-limit switch, 6-pressure sensor, 7-the first electromagnetic valve, 8-the second electromagnetic valve, 9-current-limiting apparatus.
The specific embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the utility model can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
Fig. 1 is the take a seat schematic diagram of control system of the mast of the rotary drilling rig described in the utility model embodiment, as shown in FIG., this control system comprise amplitude oil cylinder 1, equalizing valve 2, luffing control valve 3, controller 4, current-limiting apparatus 9, the first electromagnetic valve 7, the second electromagnetic valve 8, for detection of the mast of rotary drilling rig and the first induction installation of support platform relative position and the second induction installation of controlling state for detection of pilot handle.In the present embodiment, the hydraulic pilot reversal valve of this luffing control valve 3 for controlling by pilot handle, and be load-sensitive valve, Median Function is Y type, and this current-limiting apparatus 9 is common damping, the two-position four way change valve of these the first electromagnetic valve 7 normal opens, and its Median Function is O type, this second electromagnetic valve 8 is also the two-position four way change valve of normal off, and this first induction installation is a limit switch 5 being arranged in mast and support platform, and this second induction installation is pressure sensor 6.
The A of this luffing control valve 3, B mouth are communicated with two oil-ins of equalizing valve 2 respectively, and two oil-outs of equalizing valve 2 are communicated with rodless cavity, the rod chamber of amplitude oil cylinder 1 respectively; The other rodless cavity that is connected on amplitude oil cylinder 1 of a hydraulic fluid port of this current-limiting apparatus 9 is to the oil circuit between equalizing valve 2, and another hydraulic fluid port is communicated with the hydraulic fluid port B2 of the second electromagnetic valve 8, and the hydraulic fluid port T2 of the second electromagnetic valve 8 takes back fuel tank; The control end that the X end of this luffing control valve 3 shrinks for controlling amplitude oil cylinder 1, the control end that Y end stretches out for controlling amplitude oil cylinder 1, the first electromagnetic valve 7 is just arranged on guide's oil circuit of X end; The hydraulic fluid port B1 of this first electromagnetic valve 7 is communicated with X end, and P1 is communicated with pilot handle, and T1 takes back fuel tank, and pressure sensor 6 is just connected to X and holds to the oil circuit between hydraulic fluid port B1; Limit switch 5, pressure sensor 6, the first electromagnetic valve 7 and the second electromagnetic valve 8 are all electrically connected to controller 4.
The take a seat course of work of control system of the mast of the rotary drilling rig described in the present embodiment is as follows:
Generally, the first electromagnetic valve 7 obtains electric its P1 mouth and the B1 mouth of making and is communicated with, and the second electromagnetic valve 8 dead electricity disconnect its T2 mouth and B2 mouth.
When arriving the Y end of luffing control valve 3 by pilot handle action control guide oil, 3 commutations of luffing control valve, the hydraulic oil that makes working connection through the P of luffing control valve 3 mouth to A mouth, after equalizing valve 2, arrive again the rodless cavity of amplitude oil cylinder 1, piston rod is stretched out, and then hold up mast, and the hydraulic oil of rod chamber is got back to fuel tank through B mouth, the T mouth of equalizing valve 2, luffing control valve 3.
When by pilot handle action control guide oil through the P1 mouth of the first electromagnetic valve 7, B1 mouth while arriving the X end of luffing control valve 3,3 commutations of luffing control valve, the hydraulic oil that makes working connection through the P of luffing control valve 3 mouth to B mouth, after equalizing valve 2, arrive again the rod chamber of amplitude oil cylinder 1, piston rod is shunk, and then the mast that fell, and the hydraulic oil of rodless cavity is got back to fuel tank through A mouth, the T mouth of equalizing valve 2, luffing control valve 3.
When mast fell predeterminated position when limit switch 5 is triggered, if detecting the X end of luffing control valve 3, pressure sensor 6 still has pressure, the mode of operation that pilot handle is described is still the mast that fell, these Time Controller 4 output signals, make the first electromagnetic valve 7 dead electricity to disconnect its P1 mouth, T1 mouth and B1 mouth, and then the control of cut-out pilot handle to amplitude oil cylinder 1, the second electromagnetic valve 8 is obtained electric to be communicated with T2 mouth and B2 mouth, and then make the hydraulic oil of rodless cavity of amplitude oil cylinder 1 under the pressure of mast deadweight, B2 mouth through current-limiting apparatus 9 and the second electromagnetic valve 8, P2 mouth is got back to fuel tank, and then realize the action of certainly taking a seat of mast, under the effect of atmospheric pressure, the hydraulic oil in fuel tank can arrive through the one way valve in T mouth, B mouth and the equalizing valve 2 of luffing control valve 3 the interior repairing of rod chamber of amplitude oil cylinder 1.If when limit switch 5 is triggered, pressure sensor 6 does not detect pressure, and pilot handle stopped the falling action of mast is described, now make the second electromagnetic valve 8 dead electricity cut off its T2 mouth and B2 mouth, amplitude oil cylinder 1 stops action, does not trigger from taking a seat action, improves safety and controllability.Predeterminated position described in the present embodiment is the position of mast while approaching support platform.
The mast of the rotary drilling rig described in the present embodiment control system of taking a seat, can realize certainly taking a seat of mast, avoided being difficult to accurately control the adverse effect to amplitude oil cylinder 1 and associated mechanical structure generation, the application life of having improved described frame for movement because of the amount of contraction of amplitude oil cylinder 1; And the control system described in the present embodiment compared with prior art, the controller that controller 4 can directly carry with rotary drilling rig, a current-limiting apparatus 9, two electromagnetic valves and two sensors have only been set up in addition, simple in structure, cost is low but safe, at mast, certainly take a seat in process, do not need to provide extra power, relative energy-saving.
In other embodiments, first sensor can also be range sensor, and the parts of this first induction installation can also be arranged on the cylinder barrel, piston rod of amplitude oil cylinder 1; This second induction installation can also be for being arranged on the microswitch at pilot handle place, and current-limiting apparatus can also be flow speed control valve or choke valve.
Except the above-mentioned mast control system of taking a seat, the utility model embodiment also provides a kind of take a seat rotary drilling rig of control system of above-mentioned mast that is provided with, and the structure of other each several part of this rotary drilling rig, with reference to prior art, repeats no more herein.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. the mast of the rotary drilling rig control system of taking a seat, comprise amplitude oil cylinder (1), equalizing valve (2) and luffing control valve (3), the hydraulic pilot reversal valve of described luffing control valve (3) for controlling by pilot handle, it is characterized in that, described control system also comprises controller (4), current-limiting apparatus (9), the first electromagnetic valve (7), the second electromagnetic valve (8), for detection of the mast of rotary drilling rig and the first induction installation of support platform relative position and the second induction installation of controlling state for detection of described pilot handle; Described current-limiting apparatus (9) is other to be connected on the rodless cavity and the oil circuit between equalizing valve (2) of described amplitude oil cylinder (1); Described the first electromagnetic valve (7) is arranged on guide's oil circuit that described luffing control valve (3) shrinks for controlling described amplitude oil cylinder (1); Described the second electromagnetic valve (8) is arranged on described current-limiting apparatus (9) to the oil circuit between fuel tank; Described the first electromagnetic valve (7), the second electromagnetic valve (8), the first induction installation and described the second induction installation are all electrically connected to described controller (4); Described controller (4) is for according to the signal of described the first induction installation and the second induction installation, after described mast is transferred to predeterminated position, control described the first electromagnetic valve (7) and disconnect and control described the second electromagnetic valve (8) and connect, make the hydraulic oil of the rod chamber of described amplitude oil cylinder (1) flow back to fuel tank by described current-limiting apparatus (9).
2. the mast of the rotary drilling rig according to claim 1 control system of taking a seat, is characterized in that, described the first induction installation is limit switch (5) or range sensor.
3. the mast of the rotary drilling rig according to claim 1 and 2 control system of taking a seat, is characterized in that, the parts of described the first induction installation are arranged in described mast and described support platform, or is arranged on the cylinder barrel, piston rod of described amplitude oil cylinder (1).
4. the mast of the rotary drilling rig according to claim 3 control system of taking a seat, it is characterized in that, described the second induction installation is pressure sensor (6), and described pressure sensor (6) is arranged on the control end of described luffing control valve (3) to the oil circuit between described the first electromagnetic valve (7).
5. the mast of the rotary drilling rig according to claim 3 control system of taking a seat, is characterized in that, described the second induction installation is microswitch, and described microswitch is arranged on described pilot handle place.
6. the mast of the rotary drilling rig according to claim 1 control system of taking a seat, it is characterized in that, described the first electromagnetic valve (7) is for having the reversal valve of oil-in, oil return opening and at least one actuator port, and a described oil-in is communicated with guide's oil circuit of described luffing control valve (3) and oil-in is normal open state.
7. according to the mast of the rotary drilling rig described in claim 1 or 6 control system of taking a seat, it is characterized in that, described the second electromagnetic valve (8) is for being at least the reversal valve of two-way, and described the second electromagnetic valve (8) is normal off state.
8. the mast of the rotary drilling rig according to claim 7 control system of taking a seat, is characterized in that, described luffing control valve (3) is load-sensitive valve, and Median Function is Y type.
9. the mast of the rotary drilling rig according to claim 1 control system of taking a seat, is characterized in that, described current-limiting apparatus (9) is damping unit, flow speed control valve or choke valve.
10. a rotary drilling rig, is characterized in that, the mast that described rotary drilling rig is provided with the rotary drilling rig as described in claim 1 to the 9 any one control system of taking a seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320370162.5U CN203547701U (en) | 2013-06-26 | 2013-06-26 | Rotary drilling machine and mast sitting control system of same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320370162.5U CN203547701U (en) | 2013-06-26 | 2013-06-26 | Rotary drilling machine and mast sitting control system of same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203547701U true CN203547701U (en) | 2014-04-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320370162.5U Withdrawn - After Issue CN203547701U (en) | 2013-06-26 | 2013-06-26 | Rotary drilling machine and mast sitting control system of same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203547701U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362492A (en) * | 2013-06-26 | 2013-10-23 | 北京市三一重机有限公司 | Method and system for controlling seating of rotary drilling rig mast |
| CN104179460A (en) * | 2014-08-18 | 2014-12-03 | 阿特拉斯科普柯(南京)建筑矿山设备有限公司 | Tower lifting device of roller-bit hole rig |
| CN105298971A (en) * | 2015-11-13 | 2016-02-03 | 上海华测导航技术股份有限公司 | Hydraulic control valve bank of automatic steering system of agricultural machine |
-
2013
- 2013-06-26 CN CN201320370162.5U patent/CN203547701U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362492A (en) * | 2013-06-26 | 2013-10-23 | 北京市三一重机有限公司 | Method and system for controlling seating of rotary drilling rig mast |
| CN103362492B (en) * | 2013-06-26 | 2016-08-10 | 北京市三一重机有限公司 | Control method that rotary digging driller mast is taken a seat and control system |
| CN104179460A (en) * | 2014-08-18 | 2014-12-03 | 阿特拉斯科普柯(南京)建筑矿山设备有限公司 | Tower lifting device of roller-bit hole rig |
| WO2016026378A1 (en) * | 2014-08-18 | 2016-02-25 | 阿特拉斯科普柯(南京)建筑矿山设备有限公司 | Tower lifting device for rotary drill |
| US10316540B2 (en) | 2014-08-18 | 2019-06-11 | Epiroc (Nanjing) Construction And Mining Equipment Co., Ltd. | Tower lifting device for rotary blasthole drill |
| CN105298971A (en) * | 2015-11-13 | 2016-02-03 | 上海华测导航技术股份有限公司 | Hydraulic control valve bank of automatic steering system of agricultural machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140416 Effective date of abandoning: 20160810 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |