CN102392840A - Ascending and descending control system for main elevator of rotary drilling machine - Google Patents
Ascending and descending control system for main elevator of rotary drilling machine Download PDFInfo
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- CN102392840A CN102392840A CN2011103819730A CN201110381973A CN102392840A CN 102392840 A CN102392840 A CN 102392840A CN 2011103819730 A CN2011103819730 A CN 2011103819730A CN 201110381973 A CN201110381973 A CN 201110381973A CN 102392840 A CN102392840 A CN 102392840A
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Abstract
The invention discloses an ascending and descending control system for a main elevator of a rotary drilling machine. A three-position four-way hydraulic control reversing valve is added, wherein an X control port of the three-position four-way hydraulic control reversing valve is communicated with an ascending guide oil outlet of a main elevator guide control handle; a Y control port is communicated with a descending guide oil outlet of the main elevator guide control handle; an A port is communicated with an ascending channel; a B port is communicated with a descending channel; or the X control port is communicated with the descending guide oil outlet, the Y control port is communicated with the ascending guide oil outlet, the A port is communicated with the descending channel and the B port is communicated with the ascending channel. The control system disclosed by the invention has the beneficial effects that, first and second main pumps jointly supply oil to a main elevator motor when the main elevator is in a descending process, thereby improving the descending speed and working efficiency of the main elevator. Besides, when an original control system is reformed, only one three-position four-way hydraulic control reversing valve is added and an oil path is simply reformed, thereby reducing the difficulty in reforming the original control system.
Description
Technical field
The invention belongs to rotary drilling rig control technique field, relate in particular to a kind of rotary drilling rig master winch lift control system.
Background technique
Rotary drilling rig has characteristics such as installed power is big, output torque is big, hole quality is good, flexible and convenient operation, efficiency of construction is high, environmental pollution is little, cooperates different drilling tools, can adapt to the most geological condition of China.Rotary drilling rig has become the main construction plant of bored pile construction in the building foundation engineering.
At present, what used on the chassis of domestic majority rotary drilling rig is the chassis of excavator, and what the master winch interflow control branch road of rotary drilling rig was corresponding is excavator swing arm interflow hydraulic pressure branch road.
Referring to Fig. 1, Fig. 1 is existing rotary drilling rig master winch lift control system, mainly comprises first main pump 11, second main pump 12, pioneer pump 13, master winch guide Joystick 14, first main valve 15, second main valve 16 and master winch motor 17.An oil inlet and outlet of master winch motor 17 connects rising passway 171, another oil inlet and outlet connects decline passway 172.First main valve 15 forms by many couplet directional control valve is integrated; Be used for to a plurality of executive component fuel feeding; Its tetrad is the hydraulic control proportional reversing valve with two actuator ports, and the actuator port A of this hydraulic control proportional reversing valve is communicated with the rising passway 171 of master winch motor, actuator port B is communicated with the decline passway 172 of master winch motor.Second main valve 16 forms by many couplet directional control valve is integrated, is used for to a plurality of executive component fuel feeding, and its tetrad is the hydraulic control proportional reversing valve with an actuator port, and the actuator port of this hydraulic control proportional reversing valve is communicated with the rising passway 171 of master winch motor 17.The filler opening of master winch guide Joystick 14 is communicated with the oil outlet of pioneer pump 13; The rising guide oil outlet of master winch guide Joystick 14 is communicated with the last control port of the tetrad hydraulic control proportional reversing valve of the last control port of the tetrad hydraulic control proportional reversing valve of first main valve 15, second main valve 16 respectively, and the decline guide oil outlet of master winch guide Joystick 14 is communicated with the following control port of the tetrad hydraulic control proportional reversing valve of first main valve 15.The oil outlet of first main pump 11 is connected with the filler opening of first main valve 15, and the oil outlet of second main pump 12 is connected with the filler opening of second main valve.First main pump 11 and second main pump 12 all can be to the rising passway fuel feeding of master winch motor 17, but have only first main pump 11 can be to the decline passway fuel feeding of master winch motor 17.
Rotary drilling rig master winch up-down control loop shown in Figure 1, the double pump interflow is master winch motor fuel feeding when master winch promotes, and can reach the purpose of fast lifting; But in master winch decline process; The first main pump fuel feeding is only arranged, cause the master winch lowering velocity slow, working efficiency is lower.
In order to address this problem; The patent No. is that 200820118632.8 patent application has proposed the two-way Confluent control system of a kind of rotary drilling rig master winch folding and unfolding; Its structure is as shown in Figure 2, mainly comprises master winch motor 21, master winch control valve 22, right oil hydraulic pump 23, rising passway 24, decline passway 25, left oil hydraulic pump 26, rotary control valve 27, rotary motor 28, master winch interflow control valve 29, aux. control valve 210 and auxiliary hydraulic pump 211.When needs are transferred master winch; Adjustment rotary control valve 27 is in the next state, master winch control valve 22 is in upper state; Left side oil hydraulic pump 26 is started working with right oil hydraulic pump 23, and the hydraulic oil that from left oil hydraulic pump 26, extrudes gets in the decline passway 25 of master winch motor 1 through behind the rotary control valve 27; And behind the hydraulic oil that from right oil hydraulic pump 23, the extrudes process master winch control valve 22; Also enter into the decline passway 25 of master winch motor 21, the realization master winch is transferred the double pump interflow of process, improves the lowering velocity and the working efficiency of master winch.
But; This control system has following defective: need revolution working connection and guide's control oil channel on the original chassis of rotary drilling rig be dismantled entirely; Will in aux. control valve 210, increase by one in addition comes to rotary motor 28 fuel feeding; Because domestic rotary drilling rig aux. control valve all is 5, just controls 5 actuators, and need in aux. control valve 210, increase by one now; Need order aux. control valve again and change, the difficulty that causes the rotary drilling rig that has dispatched from the factory is carried out upgrading is very big.
Summary of the invention
In view of this; The object of the present invention is to provide a kind of rotary drilling rig master winch lift control system; Can realize the double pump interflow fuel feeding in the master winch decline process; Improve the lowering velocity and the working efficiency of master winch, and when the rotary drilling rig that this control system is applied to dispatch from the factory, only need carry out simple structure of modification the rotary drilling rig that has dispatched from the factory.
For realizing above-mentioned purpose, the present invention provides following technological scheme:
A kind of rotary drilling rig master winch lift control system comprises first main pump, second main pump, pioneer pump, master winch guide Joystick, first main valve, second main valve and master winch motor, also comprises a 3-position 4-way pilot operated directional control valve;
An oil inlet and outlet of said master winch motor connects rising passway, another oil inlet and outlet connects decline passway;
The oil outlet of said pioneer pump is communicated with the filler opening of said master winch guide Joystick;
The filler opening of said first main valve is communicated with the oil outlet of said first main pump; The last control port of tetrad hydraulic control proportional reversing valve is communicated with the rising guide oil outlet of said master winch guide Joystick in said first main valve; The following control of tetrad hydraulic control proportional reversing valve mouthful is communicated with the decline guide oil outlet of said master winch guide Joystick, controls with said going up that the corresponding actuator port of mouth is communicated with said rising passway, another actuator port is communicated with said decline passway in the tetrad hydraulic control proportional reversing valve;
The filler opening of said second main valve is communicated with the oil outlet of said second main pump; The last control port of tetrad hydraulic control proportional reversing valve is communicated with the rising guide oil outlet and the decline guide oil outlet of said master winch guide Joystick simultaneously in said second main valve, and the actuator port of tetrad hydraulic control proportional reversing valve is communicated with the P mouth of said 3-position 4-way pilot operated directional control valve;
The X control mouth of said 3-position 4-way pilot operated directional control valve is communicated with the rising guide oil outlet of said master winch guide Joystick, Y control mouth is communicated with the decline guide oil outlet of said master winch guide Joystick, the A mouth is communicated with said rising passway, the B mouth is communicated with said decline passway; Perhaps X control mouth is communicated with the decline guide oil outlet of said master winch guide Joystick, Y control mouth is communicated with the rising guide oil outlet of said master winch guide Joystick, the A mouth is communicated with said decline passway, the B mouth is communicated with said rising passway; In addition, the T mouth of said 3-position 4-way pilot operated directional control valve is communicated with main fuel tank.
Preferably; In above-mentioned rotary drilling rig master winch lift control system; The last control port of tetrad hydraulic control proportional reversing valve is communicated with the rising guide oil outlet and the decline guide oil outlet of said master winch guide Joystick simultaneously in said second main valve, is specially:
The rising guide oil outlet of the last control port of tetrad hydraulic control proportional reversing valve and said master winch guide Joystick is communicated with through pipeline road in said second main valve, and said pipeline road is provided with and stops hydraulic oil to the mobile one-way valve of the rising guide oil outlet of said master winch guide Joystick;
The decline guide oil outlet of the last control port of tetrad hydraulic control proportional reversing valve and said master winch guide Joystick is communicated with through another pipeline road in said second main valve, and said pipeline road is provided with and stops hydraulic oil to the mobile one-way valve of the decline guide oil outlet of said master winch guide Joystick.
Preferably; In above-mentioned rotary drilling rig master winch lift control system; The last control port of tetrad hydraulic control proportional reversing valve is communicated with the rising guide oil outlet and the decline guide oil outlet of said master winch guide Joystick through three-way shuttle valve simultaneously in said second main valve, and is concrete:
The rising guide oil outlet of said master winch guide Joystick is communicated with a filler opening of said three-way shuttle valve;
The decline guide oil outlet of said master winch guide Joystick is communicated with another filler opening of said three-way shuttle valve;
The last control port of tetrad hydraulic control proportional reversing valve is communicated with the oil outlet of said three-way shuttle valve in said second main valve.
This shows; Beneficial effect of the present invention is: rotary drilling rig master winch lift control system disclosed by the invention is compared with original control system; Increase a 3-position 4-way pilot operated directional control valve; Be communicated with the last control port of tetrad hydraulic control proportional reversing valve in rising guide oil outlet and second main valve of master winch guide Joystick simultaneously; The high pressure oil that makes second main pump flow out can flow into the rising passway or the decline passway of master winch motor through the switching-over effect of 3-position 4-way pilot operated directional control valve, and guaranteeing in the decline process of master winch, to be collaborated by first main pump and second main pump is master winch motor fuel feeding, thereby improves the lowering velocity and the working efficiency of master winch; In addition; In the process that original control system is transformed, only need increase a 3-position 4-way pilot operated directional control valve and carry out simple oil circuit transformation, therefore reduced the transformation difficulty of original control system.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technological scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of existing a kind of rotary drilling rig master winch lift control system;
Fig. 2 is the structural representation of existing another kind of rotary drilling rig master winch lift control system;
Fig. 3 is the structural representation of a kind of rotary drilling rig master winch lift control system disclosed by the invention.
Embodiment
The invention discloses a kind of rotary drilling rig master winch lift control system; Can realize the double pump interflow fuel feeding in the master winch decline process; Improve the lowering velocity and the working efficiency of master winch; And when the rotary drilling rig that this control system is applied to dispatch from the factory, only need carry out simple structure of modification to the rotary drilling rig that has dispatched from the factory.
Its basic principle is: in original control system, increase a 3-position 4-way pilot operated directional control valve; Be communicated with the last control port of tetrad hydraulic control proportional reversing valve in rising guide oil outlet and second main valve of master winch guide Joystick simultaneously; The high pressure oil that makes second main pump flow out can flow into the rising passway or the decline passway of master winch motor through the switching-over effect of 3-position 4-way pilot operated directional control valve, and guaranteeing in the decline process of master winch, to be collaborated by first main pump and second main pump is master winch motor fuel feeding.Thereby improve the lowering velocity and the working efficiency of master winch; In addition; In the process that original control system is transformed, only need increase a 3-position 4-way pilot operated directional control valve and carry out simple oil circuit transformation, therefore reduced the transformation difficulty of original control system.
For the purpose, technological scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technological scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Referring to Fig. 3, Fig. 3 is the structural representation of a kind of rotary drilling rig master winch lift control system disclosed by the invention.
This control system comprises first main pump 1, second main pump 2, pioneer pump 3, master winch guide Joystick 4, first main valve 5, second main valve 6, master winch motor 7 and 3-position 4-way pilot operated directional control valve 8.
Wherein:
An oil inlet and outlet of master winch motor 7 connects rising passway 71, another oil inlet and outlet connects decline passway 72.
The oil outlet of pioneer pump 3 is communicated with the filler opening 41 of master winch guide Joystick 4.
First main valve 5 is made up of 5-linked hydraulic control proportional reversing valve.The filler opening of first main valve 5 (i.e. the filler opening of the first hydraulic control proportional reversing valve) is communicated with the oil outlet of first main pump 1; The last control port 541 of tetrad hydraulic control proportional reversing valve 54 is communicated with the rising guide oil outlet 42 of master winch guide Joystick 4 in first main valve 5; The following control port 542 of tetrad hydraulic control proportional reversing valve 54 is communicated with the decline guide oil outlet 43 of master winch guide Joystick 4, is communicated with rising passway 71 with last control mouthful 541 corresponding actuator ports (being actuator port A) in the tetrad hydraulic control proportional reversing valve 54, another actuator port (being actuator port B) is communicated with decline passway 72.
Second main valve 6 is made up of 5-linked hydraulic control proportional reversing valve.The filler opening of second main valve 6 (i.e. the filler opening of the first hydraulic control proportional reversing valve) is communicated with the oil outlet of second main pump 2; The last control port 641 of tetrad hydraulic control proportional reversing valve 64 is communicated with decline guide oil outlet 43 with the rising guide oil outlet 42 of master winch guide Joystick 4 simultaneously in second main valve 6, and the actuator port of tetrad hydraulic control proportional reversing valve 64 is communicated with the P mouth of 3-position 4-way pilot operated directional control valve 8.
3-position 4-way pilot operated directional control valve 8 has two and controls mouthful (an X control mouth and a Y control mouth), a filler opening (being the P mouth), a return opening (being the T mouth) and two oil outlets (being A mouth and B mouth).When hydraulic oil injects X control mouth, to the T mouth, form path from the P mouth to the A mouth and from the B mouth; When hydraulic oil injects Y control mouth, to the T mouth, form path from the P mouth to the B mouth and from the A mouth.
In the enforcement; Annexation between 3-position 4-way pilot operated directional control valve 8, master winch guide Joystick 4, second main valve 6 and the master winch motor 7 can be as shown in Figure 3; The X control mouth that is 3-position 4-way pilot operated directional control valve 8 is communicated with the rising guide oil outlet 42 of master winch guide Joystick 4; Y control mouth is communicated with the decline guide oil outlet 43 of master winch guide Joystick 4, and the A mouth is communicated with rising passway 71, and the B mouth is communicated with decline passway 72; The P mouth is communicated with the actuator port of tetrad hydraulic control proportional reversing valve 64 in second main valve 6, and the T mouth is communicated with main fuel tank.
Annexation between 3-position 4-way pilot operated directional control valve 8, master winch guide Joystick 4, second main valve 6 and the master winch motor 7 can also be; The X control mouth of 3-position 4-way pilot operated directional control valve 8 is communicated with the decline guide oil outlet 43 of master winch guide Joystick 4; Y control mouth is communicated with the rising guide oil outlet 42 of master winch guide Joystick 4; The A mouth is communicated with decline passway 72; The B mouth is communicated with rising passway 71, and the P mouth is communicated with the actuator port of tetrad hydraulic control proportional reversing valve 64 in second main valve 6, and the T mouth is communicated with main fuel tank.
In addition, the last control port 641 of tetrad hydraulic control proportional reversing valve 64 is communicated with decline guide oil outlet 43 with the rising guide oil outlet 42 of master winch guide Joystick 4 simultaneously in second main valve 6, can be accomplished in several ways.The present invention only describes two kinds in the multiple implementation.
A kind of implementation: the rising guide oil outlet 42 of the last control port 641 of tetrad hydraulic control proportional reversing valve 64 and master winch guide Joystick 4 is communicated with through the pipeline road (not shown) in second main valve 6; This pipeline road is provided with one-way valve, and this one-way valve can stop hydraulic oil to flow to the rising guide oil outlet 42 of master winch guide Joystick 4; The decline guide oil outlet 43 of the last control port 641 of tetrad hydraulic control proportional reversing valve 64 and master winch guide Joystick 4 is communicated with through another pipeline road (not shown) in second main valve 6; This pipeline road is provided with one-way valve, and this one-way valve can stop hydraulic oil to flow to the decline guide oil outlet 43 of master winch guide Joystick 4.
Another kind of implementation: see also Fig. 3; A three-way shuttle valve 9 is set in control system; The rising guide oil outlet 42 of master winch guide Joystick 4 is communicated with a filler opening of three-way shuttle valve 9; The decline guide oil outlet 43 of master winch guide Joystick 4 is communicated with another filler opening of three-way shuttle valve 9, and the last control port 641 of tetrad hydraulic control proportional reversing valve 64 is communicated with the oil outlet of three-way shuttle valve in second main valve 6.
Running in the face of rotary drilling rig master winch lift control system shown in Figure 3 describes down.
In the master winch lifting process: master winch guide Joystick 4 is pulled the master winch propradation; The hydraulic oil that flows out from pioneer pump 3 oil outlets gets into the filler opening 41 of master winch guide Joystick 4, and hydraulic oil flows out from the rising guide oil outlet 42 of master winch guide Joystick 4 afterwards; The hydraulic oil that flows out from the rising guide oil outlet of master winch guide Joystick 4 42 gets into the last control port 541 of tetrad hydraulic control proportional reversing valve 54 first main valve 5, the X control mouth of 3-position 4-way pilot operated directional control valve 8 and a filler opening of three-way shuttle valve 9 respectively; Make 3-position 4-way pilot operated directional control valve 8 commutate; P mouth in this moment 3-position 4-way pilot operated directional control valve 8 is communicated with the A mouth, B mouth and T mouth are communicated with, and while hydraulic oil flows into the last control port 641 of tetrad hydraulic control proportional reversing valve 64 second main valve 6 from the oil outlet of three-way shuttle valve 9; The high pressure oil that flows out from second main pump 2 flows into second main valve 6; The actuator port of tetrad hydraulic control proportional reversing valve 64 flows into the P mouth of 3-position 4-way pilot operated directional control valve 8 from second main valve 6 afterwards; Through P mouth → A mouth passage, finally flow into the rising passway 71 of master winch motor 7 from the A mouth of 3-position 4-way pilot operated directional control valve 8; Simultaneously, the high pressure oil that flows out from first main pump 1 flows into first main valve 5, afterwards the rising passway 71 of the actuator port A of tetrad hydraulic control proportional reversing valve 54 inflow master winch motor 7 from first main valve 5.At this moment; First main pump 1 is given rising passway 71 fuel feeding of master winch motor 7 through first main valve 5; Second main pump 2 is given rising passway 71 fuel feeding of master winch motor 7 simultaneously through second main valve 6 and 3-position 4-way pilot operated directional control valve 8, drives 7 work of master winch motor simultaneously by first main pump 1, second main pump 2.
After hydraulic oil circulates in master winch motor 7; Get in the decline passway 72; Part hydraulic oil is got back in the main fuel tank through the actuator port B of tetrad hydraulic control proportional reversing valve 54 in first main valve 5; Another part hydraulic oil is got back to main fuel tank through the B mouth → T mouth passage of pilot operated directional control valve 8, thereby realizes the lifting of master winch.
In the master winch decline process: master winch guide Joystick 4 is pulled master winch decline state; The hydraulic oil that flows out from pioneer pump 3 oil outlets gets into the filler opening 41 of master winch guide Joystick 4, and hydraulic oil flows out from the decline guide oil outlet 43 of master winch guide Joystick 4 afterwards; The hydraulic oil that flows out from the decline guide oil outlet of master winch guide Joystick 4 43 gets into Y control mouthful and another filler opening of three-way shuttle valve 9 of following control port 542, the 3-position 4-way pilot operated directional control valve 8 of tetrad hydraulic control proportional reversing valve 54 first main valve 5 respectively; Make 3-position 4-way pilot operated directional control valve 8 commutate; P mouth in this moment 3-position 4-way pilot operated directional control valve 8 is communicated with the B mouth, A mouth and T mouth are communicated with, and while hydraulic oil flows into the last control port 641 of tetrad hydraulic control proportional reversing valve 64 second main valve 6 from the oil outlet of three-way shuttle valve 9; The high pressure oil that flows out from second main pump 2 flows into second main valve 6; The actuator port of tetrad hydraulic control proportional reversing valve 64 flows into the P mouth of 3-position 4-way pilot operated directional control valve 8 from second main valve 6 afterwards; Through P mouth → B mouth passage, finally flow into the decline passway 72 of master winch motor 7 from the B mouth of 3-position 4-way pilot operated directional control valve 8; Simultaneously, the high pressure oil that flows out from first main pump 1 flows into first main valve 5, afterwards the decline passway 72 of the actuator port B of tetrad hydraulic control proportional reversing valve 54 inflow master winch motor 7 from first main valve 5.At this moment; First main pump 1 is given decline passway 72 fuel feeding of master winch motor 7 through first main valve 5; Second main pump 2 is given decline passway 72 fuel feeding of master winch motor 7 simultaneously through second main valve 6 and 3-position 4-way pilot operated directional control valve 8, drives 7 work of master winch motor simultaneously by first main pump 1, second main pump 2.
After hydraulic oil circulates in master winch motor 7; Get in the rising passway 72; Part hydraulic oil is got back in the main fuel tank through the actuator port A of tetrad hydraulic control proportional reversing valve 54 in first main valve 5; Another part hydraulic oil is got back to main fuel tank through the A mouth → T mouth passage of pilot operated directional control valve 8, thereby realizes the decline of master winch.
The above-mentioned disclosed rotary drilling rig master winch lift control system of the present invention; Compare with original control system; Increase a 3-position 4-way pilot operated directional control valve; Be communicated with the last control port of tetrad hydraulic control proportional reversing valve in rising guide oil outlet and second main valve of master winch guide Joystick simultaneously; The high pressure oil that makes second main pump flow out can flow into the rising passway or the decline passway of master winch motor through the switching-over effect of 3-position 4-way pilot operated directional control valve, and guaranteeing in the decline process of master winch, to be collaborated by first main pump and second main pump is master winch motor fuel feeding.Thereby improve the lowering velocity and the working efficiency of master winch; In addition; In the process that original control system is transformed, only need increase a 3-position 4-way pilot operated directional control valve and carry out simple oil circuit transformation, therefore reduced the transformation difficulty of original control system.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and other embodiments' difference that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the present invention.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiments shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (3)
1. a rotary drilling rig master winch lift control system comprises first main pump, second main pump, pioneer pump, master winch guide Joystick, first main valve, second main valve and master winch motor, it is characterized in that, also comprises a 3-position 4-way pilot operated directional control valve;
An oil inlet and outlet of said master winch motor connects rising passway, another oil inlet and outlet connects decline passway;
The oil outlet of said pioneer pump is communicated with the filler opening of said master winch guide Joystick;
The filler opening of said first main valve is communicated with the oil outlet of said first main pump; The last control port of tetrad hydraulic control proportional reversing valve is communicated with the rising guide oil outlet of said master winch guide Joystick in said first main valve; The following control mouth of tetrad hydraulic control proportional reversing valve is communicated with the decline guide oil outlet of said master winch guide Joystick, and the actuator port corresponding to said upward control mouth in the tetrad hydraulic control proportional reversing valve is communicated with said rising passway, another actuator port is communicated with said decline passway;
The filler opening of said second main valve is communicated with the oil outlet of said second main pump; The last control port of tetrad hydraulic control proportional reversing valve is communicated with the rising guide oil outlet and the decline guide oil outlet of said master winch guide Joystick simultaneously in said second main valve, and the actuator port of tetrad hydraulic control proportional reversing valve is communicated with the P mouth of said 3-position 4-way pilot operated directional control valve;
The X control mouth of said 3-position 4-way pilot operated directional control valve is communicated with the rising guide oil outlet of said master winch guide Joystick, Y control mouth is communicated with the decline guide oil outlet of said master winch guide Joystick, the A mouth is communicated with said rising passway, the B mouth is communicated with said decline passway; Perhaps X control mouth is communicated with the decline guide oil outlet of said master winch guide Joystick, Y control mouth is communicated with the rising guide oil outlet of said master winch guide Joystick, the A mouth is communicated with said decline passway, the B mouth is communicated with said rising passway; In addition, the T mouth of said 3-position 4-way pilot operated directional control valve is communicated with main fuel tank.
2. rotary drilling rig master winch lift control system according to claim 1; It is characterized in that; The last control port of tetrad hydraulic control proportional reversing valve is communicated with the rising guide oil outlet and the decline guide oil outlet of said master winch guide Joystick simultaneously in said second main valve, is specially:
The rising guide oil outlet of the last control port of tetrad hydraulic control proportional reversing valve and said master winch guide Joystick is communicated with through pipeline road in said second main valve, and said pipeline road is provided with and stops hydraulic oil to the mobile one-way valve of the rising guide oil outlet of said master winch guide Joystick;
The decline guide oil outlet of the last control port of tetrad hydraulic control proportional reversing valve and said master winch guide Joystick is communicated with through another pipeline road in said second main valve, and said pipeline road is provided with and stops hydraulic oil to the mobile one-way valve of the decline guide oil outlet of said master winch guide Joystick.
3. rotary drilling rig master winch lift control system according to claim 1; It is characterized in that; The last control port of tetrad hydraulic control proportional reversing valve is communicated with the rising guide oil outlet and the decline guide oil outlet of said master winch guide Joystick through three-way shuttle valve simultaneously in said second main valve, and is concrete:
The rising guide oil outlet of said master winch guide Joystick is communicated with a filler opening of said three-way shuttle valve;
The decline guide oil outlet of said master winch guide Joystick is communicated with another filler opening of said three-way shuttle valve;
The last control port of tetrad hydraulic control proportional reversing valve is communicated with the oil outlet of said three-way shuttle valve in said second main valve.
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| CN201110381973.0A CN102392840B (en) | 2011-11-25 | 2011-11-25 | Ascending and descending control system for main elevator of rotary drilling machine |
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| CN103291674A (en) * | 2013-05-31 | 2013-09-11 | 武汉船用机械有限责任公司 | Hydraulic lifting control system |
| CN104235090A (en) * | 2014-07-23 | 2014-12-24 | 北京市三一重机有限公司 | Negative-feedback hydraulic system and rotary drilling rig |
| CN106523455A (en) * | 2016-10-31 | 2017-03-22 | 西南大学 | Tractor load-sensitive hydraulic system with double-pump confluence function |
| CN107806320A (en) * | 2017-11-28 | 2018-03-16 | 恒天九五重工有限公司 | The auxiliary pump Confluent control system of rotary drilling rig main pump and its control method |
| CN113790180A (en) * | 2021-09-14 | 2021-12-14 | 恒天九五重工有限公司 | Two-stage pressurization electro-hydraulic control system and control method for rotary drilling rig |
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| CN202346679U (en) * | 2011-11-25 | 2012-07-25 | 北京南车时代机车车辆机械有限公司 | Lifting control system of main winch of rotary drilling machine |
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| CN103291674A (en) * | 2013-05-31 | 2013-09-11 | 武汉船用机械有限责任公司 | Hydraulic lifting control system |
| CN103291674B (en) * | 2013-05-31 | 2015-10-21 | 武汉船用机械有限责任公司 | A kind of hydraulic lifting control system |
| CN104235090A (en) * | 2014-07-23 | 2014-12-24 | 北京市三一重机有限公司 | Negative-feedback hydraulic system and rotary drilling rig |
| CN104235090B (en) * | 2014-07-23 | 2016-08-24 | 北京市三一重机有限公司 | Negative feedback hydraulic system and rotary drilling rig |
| CN106523455A (en) * | 2016-10-31 | 2017-03-22 | 西南大学 | Tractor load-sensitive hydraulic system with double-pump confluence function |
| CN107806320A (en) * | 2017-11-28 | 2018-03-16 | 恒天九五重工有限公司 | The auxiliary pump Confluent control system of rotary drilling rig main pump and its control method |
| CN107806320B (en) * | 2017-11-28 | 2023-08-15 | 恒天九五重工有限公司 | Main pump auxiliary pump confluence control system and control method of rotary drilling rig |
| CN113790180A (en) * | 2021-09-14 | 2021-12-14 | 恒天九五重工有限公司 | Two-stage pressurization electro-hydraulic control system and control method for rotary drilling rig |
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Address after: 102249 Beijing ChangPing Railway Station, west of Changping District, 500 meters Patentee after: Beijing CRRC Heavy Industry Mechanics Co., Ltd. Address before: 102249 Beijing ChangPing Railway Station, west of Changping District, 500 meters Patentee before: Beijing CSR Times Heavy Industry Machinery Co., Ltd. |