CN202417468U - Rotary drilling jig and pressure and torque matching device thereof - Google Patents
Rotary drilling jig and pressure and torque matching device thereof Download PDFInfo
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- CN202417468U CN202417468U CN 201120521463 CN201120521463U CN202417468U CN 202417468 U CN202417468 U CN 202417468U CN 201120521463 CN201120521463 CN 201120521463 CN 201120521463 U CN201120521463 U CN 201120521463U CN 202417468 U CN202417468 U CN 202417468U
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Abstract
The utility model relates to the technical field of engineering machinery, and discloses a rotary drilling jig and a pressure and torque matching device thereof. The pressure and torque matching device comprises a feedback control unit arranged between a hydraulic system of a power head and a hydraulic system of a pressure device, and the feedback control unit adjusts the pressure of oil of a main oil circuit of the hydraulic system of the pressure device according to the current pressure of oil of a main oil circuit of the hydraulic system of the power head. The pressure and torque matching device in an embodiment of the utility model has the advantages that the feedback control unit adjusts the pressure of the oil of the main oil circuit of the hydraulic system of the pressure device according to the current pressure of the oil of the main oil circuit of the hydraulic system of the power head in real time, accordingly, the pressure of the pressure device matches with torque of the power head, and problems of low rock penetration efficiency and reduction of hole forming quality due to two mutually independent hydraulic systems in the prior art are avoided.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly relates to a kind of rotary drilling rig and pressure thereof and moment of torsion coalignment.
Background technology
As shown in Figure 1; In existing rotary drilling rig; The moment of torsion of its unit head and the plus-pressure of water booster system are by independently unit head hydraulic system 1 and water booster system hydraulic system 6 are controlled respectively separately; The moment of torsion of unit head generally adopts load-sensitive control, and the plus-pressure of water booster system then fully by the load decision, is not set up organic connections between the two.In the rotary drilling rig operation process; The moment of torsion that provides when unit head adds when the maximum shear stress that plus-pressure produced that drilling tool and drilling rod deadweight provide does not reach the surrender shearing stress intensity of rock, need increase plus-pressure through water booster system usually and increase maximum shear stress, at this moment; The rock stratum is destroyed; Rotary drilling rig continues to creep into, or after plus-pressure reached specified plus-pressure, rotary drilling rig still can't creep into.
Because for different rock stratum; It is also different thereupon with corresponding plus-pressure to destroy the required best torque in rock stratum; Therefore, in the prior art, what the plus-pressure that merely increases moment of torsion and the water booster system of unit head can not improve rotary drilling rig effectively goes into rock efficient; In addition; When the moment of torsion of rotary digging drill power head reached specified output torque but still can't destroy the rock stratum, water booster system started and bigger plus-pressure constantly is provided, and plus-pressure is crossed conference and is lowered into the hole quality in the time of unit head output high pulling torque.
Therefore, the plus-pressure of water booster system and the moment of torsion of unit head being complementary, is the technical barrier that those skilled in the art need to be resolved hurrily.
The utility model content
In view of this; The utility model aims to provide a kind of rotary drilling rig and plus-pressure and moment of torsion coalignment, with solve in the prior art moment of torsion because of the plus-pressure of water booster system and unit head can't be complementary cause go into the low problem with hole quality decline of rock efficient.
On the one hand; The utility model provides a kind of plus-pressure and moment of torsion coalignment of rotary drilling rig; This plus-pressure and moment of torsion coalignment comprise the feedback control unit of being located between said unit head hydraulic system and the said water booster system hydraulic system, and said feedback control unit is set as predetermined value according to the current working connection oil liquid pressure of said unit head hydraulic system with the working connection oil liquid pressure of said water booster system hydraulic system.
Further, said feedback control unit further comprises:
Sensor is used to obtain the working connection oil liquid pressure of said unit head hydraulic system and converts it into first voltage signal;
Proportional amplifier is used for first voltage signal from said sensor is zoomed in or out into second voltage signal;
Signal adapter is used for second voltage signal from said proportional amplifier is changed into current signal;
Proportional pressure control valve is used for according to the working connection oil liquid pressure of setting said water booster system hydraulic system from the current signal of signal adapter.
Further, said proportional pressure control valve is specially ratio pressure reducing control valve.
Further, said feedback control unit also comprises: the scale factor regulon is used to regulate the scale factor of said proportional amplifier.
On the other hand, the utility model also provides a kind of rotary drilling rig, and this rotary drilling rig is provided with above-mentioned each described plus-pressure and moment of torsion coalignment.
A kind of rotary drilling rig that the utility model provides and plus-pressure thereof and a moment of torsion device; Through between unit head hydraulic system and water booster system hydraulic system, setting up feedback control unit; Changed the phenomenon that prior art medium power head hydraulic system and water booster system hydraulic system are done things in his own way; Because the working connection oil liquid pressure of unit head hydraulic system is corresponding one by one with the moment of torsion of unit head under same gear; And the working connection oil liquid pressure of water booster system hydraulic system is corresponding one by one with the plus-pressure of water booster system; Therefore; Adjust the working connection oil liquid pressure (the working connection oil liquid pressure that is about to the water booster system hydraulic system is set as predetermined value) of water booster system hydraulic system according to the current working connection oil liquid pressure of unit head hydraulic system by predetermined way in real time by feedback control unit, thereby the plus-pressure of water booster system and the moment of torsion of unit head are complementary, avoided going into rock efficient than problem low and hole quality decline because of what two hydraulic systems independently caused separately in the prior art.
Description of drawings
The structural representation of Fig. 1 available dynamic hydraulic system and water booster system hydraulic system;
The plus-pressure of a kind of rotary drilling rig that Fig. 2 provides for the utility model embodiment and the logic diagram of moment of torsion coalignment;
Fig. 3 is the part-structure sketch map of plus-pressure shown in Figure 2 and moment of torsion coalignment.
The specific embodiment
In order to make those skilled in the art understand the technical scheme of the utility model better, the utility model is done further to specify below in conjunction with accompanying drawing and specific embodiment.Should be pointed out that description and the description order to concrete structure only is the explanation to specific embodiment in this part, should not be regarded as that the protection domain of the utility model is had any restriction.
Please refer to Fig. 2 and Fig. 3, wherein, the plus-pressure of a kind of rotary drilling rig that Fig. 2 provides for the utility model embodiment and the logic diagram of moment of torsion coalignment; Fig. 3 is the part-structure sketch map of plus-pressure shown in Figure 2 and moment of torsion coalignment.Combine Fig. 2 and Fig. 3 that the embodiment of the invention is described in detail below simultaneously.
As shown in Figure 2; This plus-pressure and the applied rotary drilling rig of moment of torsion coalignment have unit head hydraulic system 1 and water booster system hydraulic system 6; Can be respectively applied for to drilling rod provides moment of torsion and plus-pressure is provided for drilling rod; Under same gear, the moment of torsion of unit head is corresponding one by one with the working connection oil liquid pressure of unit head hydraulic system 1, and the plus-pressure of water booster system is corresponding one by one with the working connection oil liquid pressure of water booster system hydraulic system 6.
This plus-pressure and moment of torsion coalignment comprise is located at feedback control unit 16 between unit head hydraulic system 1 and the water booster system hydraulic system 6; Feedback control unit 16 further comprises sensor 2, proportional amplifier 3, scale factor regulon 31, signal adapter 4 and ratio hydraulic valve 5; Please combine shown in Figure 3; Sensor 2 detects the working connection oil liquid pressure (the normally oil-in pressure of its hydraulic motor) of unit head hydraulic system 1 in real time; And convert it into first voltage signal; The output of sensor 2 is held the Ui that this first voltage signal is sent to proportional amplifier 3, and proportional amplifier 3 becomes second voltage signal through this first voltage signal is zoomed in or out (relevant with the size of scale factor), and it is sent to signal adapter 4 through output Uo; Signal adapter 4 changes into current signal with this second voltage signal; Controlled as control signal Comparative Examples reducing valve 5 by this current signal, proportional pressure-reducing valve 5 is connected on the working connection of water booster system hydraulic system 6, can control the working connection oil liquid pressure of water booster system hydraulic system 6 according to the size of current signal; Scale factor regulon 31 can be regulated the size of the scale factor of proportional amplifier 3, makes proportional amplifier 3 have the scale factor of plurality of optional.
In practical application; The unit head moment of torsion in the time of can calculating different rock-layers respectively and in rotary drilling rig work, make drilling rod be in the best to creep into state and the ratio of water booster system plus-pressure; Thereby make the required unit head moment of torsion and the ratio of plus-pressure change into the working connection oil liquid pressure of unit head hydraulic system 1 and the ratio of the working connection oil liquid pressure of water booster system hydraulic system 6, and for proportional amplifier 3 set multiple scale factor supply and demand will the time select.In the Spiral digging machine course of work; Can be according to different rock stratum and unit head moment of torsion; Select the proper proportion factor, the working connection oil liquid pressure of unit head hydraulic system 1 is amplified pro rata through the signal of telecommunication or dwindles, feed back to proportional pressure-reducing valve 5; And then the working connection oil liquid pressure of adjustment water booster system hydraulic system 6, the plus-pressure of water booster system and the moment of torsion of unit head are complementary.
When running into the softer rock stratum of quality, can make rotary drilling rig reach the best and creep into state according to rock stratum and the unit head moment of torsion scale factor through regulating proportional amplifier 3 to regulate the plus-pressure of water booster system; When running into the hard rock stratum, the unit head moment of torsion increases thereupon, if plus-pressure also increases thereupon; Even if reached the purpose of destroying the rock stratum; Also possibly reduce hole quality because plus-pressure and unit head moment of torsion are excessive, at this moment, but passing ratio factor regulon 31 reduces the scale factor of proportional amplifier 3; Reduce the plus-pressure that water booster system provides, guarantee hole quality.
Need to prove, in the foregoing description, the working connection oil liquid pressure of passing ratio reducing valve 5 control water booster system hydraulic systems 6, but under other situations, also usage ratio overflow valve as required.
The plus-pressure of a kind of rotary drilling rig that the utility model embodiment provides and moment of torsion coalignment; Through between unit head hydraulic system and water booster system hydraulic system, setting up feedback control unit; Changed prior art medium power head hydraulic system and water booster system hydraulic system phenomenon independently separately; Because the working connection oil liquid pressure of unit head hydraulic system is corresponding one by one with the moment of torsion of unit head; And the working connection oil liquid pressure of water booster system hydraulic system is corresponding one by one with the plus-pressure of water booster system; Therefore; Adjust the working connection oil liquid pressure (the working connection oil liquid pressure that is about to the water booster system hydraulic system is set as predetermined value) of water booster system hydraulic system according to the current working connection oil liquid pressure of unit head hydraulic system by predetermined way in real time by feedback control unit, thereby the plus-pressure of water booster system and the moment of torsion of unit head are complementary, avoided going into rock efficient than problem low and hole quality decline because of what two hydraulic systems independently caused separately in the prior art.
The utility model embodiment also provides a kind of rotary drilling rig; This rotary drilling rig is provided with above-mentioned plus-pressure and moment of torsion coalignment; Because above-mentioned plus-pressure and moment of torsion coalignment has above-mentioned technique effect, therefore, the rotary drilling rig that is provided with this plus-pressure and moment of torsion coalignment also should possess the corresponding techniques effect; Its practical implementation process is similar to the above embodiments, does not give unnecessary details now.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. the plus-pressure of a rotary drilling rig and moment of torsion coalignment; Said rotary drilling rig has unit head hydraulic system (1) and water booster system hydraulic system (6); It is characterized in that: said plus-pressure and moment of torsion coalignment comprise the feedback control unit of being located between said unit head hydraulic system (1) and the said water booster system hydraulic system (6) (16), and said feedback control unit (16) is set as predetermined value according to the current working connection oil liquid pressure of said unit head hydraulic system (1) with the working connection oil liquid pressure of said water booster system hydraulic system (6).
2. plus-pressure as claimed in claim 1 and moment of torsion coalignment is characterized in that, said feedback control unit (16) further comprises:
Sensor (2) is used to obtain the working connection oil liquid pressure of said unit head hydraulic system (1) and converts it into first voltage signal;
Proportional amplifier (3) is used for first voltage signal from said sensor (2) is zoomed in or out into second voltage signal;
Signal adapter (4) is used for second voltage signal from said proportional amplifier (3) is changed into current signal;
Proportional pressure control valve is used for according to the working connection oil liquid pressure of setting said water booster system hydraulic system (6) from the current signal of signal adapter (4).
3. plus-pressure as claimed in claim 2 and moment of torsion coalignment is characterized in that: said proportional pressure control valve is specially ratio pressure reducing control valve (5).
4. like claim 2 or 3 described plus-pressures and moment of torsion coalignment, it is characterized in that: said feedback control unit (16) also comprises: scale factor regulon (31) is used to regulate the scale factor of said proportional amplifier (3).
5. a rotary drilling rig is characterized in that, said rotary drilling rig is provided with each described plus-pressure of claim 1 to 4 and moment of torsion coalignment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120521463 CN202417468U (en) | 2011-12-14 | 2011-12-14 | Rotary drilling jig and pressure and torque matching device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120521463 CN202417468U (en) | 2011-12-14 | 2011-12-14 | Rotary drilling jig and pressure and torque matching device thereof |
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| Publication Number | Publication Date |
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| CN202417468U true CN202417468U (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201120521463 Expired - Fee Related CN202417468U (en) | 2011-12-14 | 2011-12-14 | Rotary drilling jig and pressure and torque matching device thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979499A (en) * | 2012-11-26 | 2013-03-20 | 徐州重型机械有限公司 | System and method for operation control of vehicle-mounted drill machine |
| CN107795279A (en) * | 2017-12-06 | 2018-03-13 | 徐工集团工程机械有限公司 | Trepan and engineering truck |
| CN113090248A (en) * | 2019-12-23 | 2021-07-09 | 中联重科股份有限公司 | Control method and device of rotary drilling rig and rotary drilling rig |
| CN113153136A (en) * | 2021-04-06 | 2021-07-23 | 上海中联重科桩工机械有限公司 | Power head pressurizing force control method and system and rotary drilling rig |
-
2011
- 2011-12-14 CN CN 201120521463 patent/CN202417468U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979499A (en) * | 2012-11-26 | 2013-03-20 | 徐州重型机械有限公司 | System and method for operation control of vehicle-mounted drill machine |
| CN102979499B (en) * | 2012-11-26 | 2015-09-02 | 徐州重型机械有限公司 | Truck-mounted drilling rig operation-control system and method |
| CN107795279A (en) * | 2017-12-06 | 2018-03-13 | 徐工集团工程机械有限公司 | Trepan and engineering truck |
| CN113090248A (en) * | 2019-12-23 | 2021-07-09 | 中联重科股份有限公司 | Control method and device of rotary drilling rig and rotary drilling rig |
| CN113090248B (en) * | 2019-12-23 | 2023-03-14 | 中联重科股份有限公司 | Control method and device of rotary drilling rig and rotary drilling rig |
| CN113153136A (en) * | 2021-04-06 | 2021-07-23 | 上海中联重科桩工机械有限公司 | Power head pressurizing force control method and system and rotary drilling rig |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20201214 |
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| CF01 | Termination of patent right due to non-payment of annual fee |