CN202346679U - Lifting control system of main winch of rotary drilling machine - Google Patents
Lifting control system of main winch of rotary drilling machine Download PDFInfo
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- CN202346679U CN202346679U CN2011204769537U CN201120476953U CN202346679U CN 202346679 U CN202346679 U CN 202346679U CN 2011204769537 U CN2011204769537 U CN 2011204769537U CN 201120476953 U CN201120476953 U CN 201120476953U CN 202346679 U CN202346679 U CN 202346679U
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Abstract
The embodiment of the utility model discloses a lifting control system of a main winch of a rotary drilling machine. The lifting control system is characterized in that a three-position and four-way hydraulic reversing valve is additionally provided; a control port X of the three-position and four-way hydraulic reversing valve is communicated with an ascending pilot oil outlet of a pilot control handle of the main winch, a control port Y is communicated with a descending pilot oil outlet of the pilot control handle of the main winch, a port A is communicated with an ascending channel, a port B is communicated with a descending channel, or the control port X is communicated with the descending pilot oil outlet, the control port Y is communicated with the ascending pilot oil outlet, the port A is communicated with the descending channel, and the port B is communicated with the ascending channel. The control system disclosed by the embodiment of the utility model has the advantages that a first main pump and a second main pump are combined for supplying oil to a main winch motor in the descending process of the main winch, so that the descending speed and the working efficiency of the main winch are increased; and in addition, when the original control system is modified, only one three-position and four-way hydraulic reversing valve needs to be added and the oil path is simply modified, so that the modification difficulty of the original control system is reduced.
Description
Technical field
The utility model belongs to rotary drilling rig control technology field, relates in particular to a kind of rotary drilling rig master winch lift control system.
Background technology
Rotary drilling rig has characteristics such as installed power is big, output torque is big, hole quality is good, flexible and convenient operation, operating efficiency is high, environmental pollution is little, cooperates different drilling tools, can adapt to the most geologic condition of China.Rotary drilling rig has become the main construction machinery and equipment 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 excavating machine, and it is excavator swing arm interflow hydraulic pressure branch road that the master winch interflow of rotary drilling rig is controlled branch road cooresponding.
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 control handle 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 direction valve is integrated; Be used for to a plurality of power element 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 direction valve is integrated, is used for to a plurality of power element 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 oil inlet of master winch guide control handle 14 is communicated with the oil outlet of pioneer pump 13; The rising guide oil outlet of master winch guide control handle 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 control handle 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 oil inlet of first main valve 15, and the oil outlet of second main pump 12 is connected with the oil inlet 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, work 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 cock 22, right Hydraulic Pump 23, rising passway 24, decline passway 25, left Hydraulic Pump 26, rotary control valve 27, rotary motor 28, master winch interflow control cock 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 cock 22 is in upper state; Left side Hydraulic Pump 26 is started working with right Hydraulic Pump 23, and the hydraulic oil that from left Hydraulic Pump 26, extrudes gets in the decline passway 25 of master winch motor 1 through behind the rotary control valve 27; And after the hydraulic oil that from right Hydraulic Pump 23, the extrudes process master winch control cock 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 work 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 actuating units, 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.
The utility model content
In view of this; The purpose of the utility model 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 work 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 utility model provides following technical scheme:
A kind of rotary drilling rig master winch lift control system comprises first main pump, second main pump, pioneer pump, master winch guide control handle, 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 oil inlet of said master winch guide control handle;
The oil inlet 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 control handle 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 control handle, controls with said going up that the cooresponding 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 oil inlet 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 control handle 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 control handle, Y control mouth is communicated with the decline guide oil outlet of said master winch guide control handle, 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 control handle, Y control mouth is communicated with the rising guide oil outlet of said master winch guide control handle, 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 oil 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 control handle 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 control handle is communicated with through delivery line in said second main valve, and said delivery line is provided with and stops hydraulic oil to the mobile check valve of the rising guide oil outlet of said master winch guide control handle;
The decline guide oil outlet of the last control port of tetrad hydraulic control proportional reversing valve and said master winch guide control handle is communicated with through another delivery line in said second main valve, and said delivery line is provided with and stops hydraulic oil to the mobile check valve of the decline guide oil outlet of said master winch guide control handle.
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 control handle through three-way shuttle valve simultaneously in said second main valve, and is concrete:
The rising guide oil outlet of said master winch guide control handle is communicated with an oil inlet of said three-way shuttle valve;
The decline guide oil outlet of said master winch guide control handle is communicated with another oil inlet 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; The beneficial effect of the utility model is: the disclosed rotary drilling rig master winch of the utility model lift control system 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 control handle 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 work 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 utility model embodiment or technical 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 embodiment of the utility model, 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 the disclosed a kind of rotary drilling rig master winch lift control system of the utility model.
The specific embodiment
The utility model 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 work 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 groundwork 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 control handle 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 work 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, technical scheme and the advantage that make the utility model embodiment clearer; To combine the accompanying drawing among the utility model embodiment below; Technical scheme among the utility model embodiment is carried out clear, intactly description; Obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Referring to Fig. 3, Fig. 3 is the structural representation of the disclosed a kind of rotary drilling rig master winch lift control system of the utility model.
This control system comprises first main pump 1, second main pump 2, pioneer pump 3, master winch guide control handle 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 oil inlet 41 of master winch guide control handle 4.
First main valve 5 is made up of 5-linked hydraulic control proportional reversing valve.The oil inlet of first main valve 5 (i.e. the oil inlet 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 control handle 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 control handle 4, is communicated with rising passway 71 with last control mouthful 541 cooresponding 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 oil inlet of second main valve 6 (i.e. the oil inlet 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 control handle 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), an oil inlet (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 control handle 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 control handle 4; Y control mouth is communicated with the decline guide oil outlet 43 of master winch guide control handle 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 oil tank.
Annexation between 3-position 4-way pilot operated directional control valve 8, master winch guide control handle 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 control handle 4; Y control mouth is communicated with the rising guide oil outlet 42 of master winch guide control handle 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 oil 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 control handle 4 simultaneously in second main valve 6, can be accomplished in several ways.The utility model 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 control handle 4 is communicated with through the delivery line (not shown) in second main valve 6; This delivery line is provided with check valve, and this check valve can stop hydraulic oil to flow to the rising guide oil outlet 42 of master winch guide control handle 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 control handle 4 is communicated with through another delivery line (not shown) in second main valve 6; This delivery line is provided with check valve, and this check valve can stop hydraulic oil to flow to the decline guide oil outlet 43 of master winch guide control handle 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 control handle 4 is communicated with an oil inlet of three-way shuttle valve 9; The decline guide oil outlet 43 of master winch guide control handle 4 is communicated with another oil inlet 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.
Operational process 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 control handle 4 is pulled the master winch propradation; The hydraulic oil that flows out from pioneer pump 3 oil outlets gets into the oil inlet 41 of master winch guide control handle 4, and hydraulic oil flows out from the rising guide oil outlet 42 of master winch guide control handle 4 afterwards; The hydraulic oil that flows out from the rising guide oil outlet of master winch guide control handle 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 an oil inlet 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 oil 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 oil 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 control handle 4 is pulled master winch decline state; The hydraulic oil that flows out from pioneer pump 3 oil outlets gets into the oil inlet 41 of master winch guide control handle 4, and hydraulic oil flows out from the decline guide oil outlet 43 of master winch guide control handle 4 afterwards; The hydraulic oil that flows out from the decline guide oil outlet of master winch guide control handle 4 43 gets into Y control mouthful and another oil inlet 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 oil 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 oil 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 utility model; 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 control handle 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 work 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 sheets, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment 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 control handle, 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 oil inlet of said master winch guide control handle;
The oil inlet 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 control handle 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 control handle, 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 oil inlet 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 control handle 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 control handle, Y control mouth is communicated with the decline guide oil outlet of said master winch guide control handle, 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 control handle, Y control mouth is communicated with the rising guide oil outlet of said master winch guide control handle, 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 oil 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 control handle 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 control handle is communicated with through delivery line in said second main valve, and said delivery line is provided with and stops hydraulic oil to the mobile check valve of the rising guide oil outlet of said master winch guide control handle;
The decline guide oil outlet of the last control port of tetrad hydraulic control proportional reversing valve and said master winch guide control handle is communicated with through another delivery line in said second main valve, and said delivery line is provided with and stops hydraulic oil to the mobile check valve of the decline guide oil outlet of said master winch guide control handle.
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 control handle through three-way shuttle valve simultaneously in said second main valve, and is concrete:
The rising guide oil outlet of said master winch guide control handle is communicated with an oil inlet of said three-way shuttle valve;
The decline guide oil outlet of said master winch guide control handle is communicated with another oil inlet 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204769537U CN202346679U (en) | 2011-11-25 | 2011-11-25 | Lifting control system of main winch of rotary drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204769537U CN202346679U (en) | 2011-11-25 | 2011-11-25 | Lifting control system of main winch of rotary drilling machine |
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| Publication Number | Publication Date |
|---|---|
| CN202346679U true CN202346679U (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204769537U Expired - Lifetime CN202346679U (en) | 2011-11-25 | 2011-11-25 | Lifting control system of main winch of rotary drilling machine |
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| CN (1) | CN202346679U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392840A (en) * | 2011-11-25 | 2012-03-28 | 北京南车时代机车车辆机械有限公司 | Ascending and descending control system for main elevator of rotary drilling machine |
-
2011
- 2011-11-25 CN CN2011204769537U patent/CN202346679U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392840A (en) * | 2011-11-25 | 2012-03-28 | 北京南车时代机车车辆机械有限公司 | Ascending and descending control system for main elevator of rotary drilling machine |
| CN102392840B (en) * | 2011-11-25 | 2014-03-26 | 北京南车时代机车车辆机械有限公司 | Ascending and descending control system for main elevator of rotary drilling machine |
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