CN202152651U - Crawler-type tunnel drilling rig and hydraulic system thereof - Google Patents
Crawler-type tunnel drilling rig and hydraulic system thereof Download PDFInfo
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- CN202152651U CN202152651U CN2011202659570U CN201120265957U CN202152651U CN 202152651 U CN202152651 U CN 202152651U CN 2011202659570 U CN2011202659570 U CN 2011202659570U CN 201120265957 U CN201120265957 U CN 201120265957U CN 202152651 U CN202152651 U CN 202152651U
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Abstract
The utility model discloses a hydraulic system of a crawler-type tunnel drilling rig. The hydraulic system comprises a first hydraulic control oil path, a second hydraulic control oil path, a front holder hydraulic control oil path and a rear holder hydraulic control oil path. A main oil pump supplies oil to the first hydraulic control oil path, and an auxiliary oil pump supplies oil to the second hydraulic control oil path. The front holder hydraulic control oil path is provided with a first manually operated reversing valve communicated with a hydraulic circuit of the second hydraulic control oil path, and an output oil path of the front holder hydraulic control oil path is directly connected with an external control opening of a front holder. The rear holder hydraulic control oil path is provided with a second manually operated reversing valve communicated with the hydraulic circuit of the second hydraulic control oil path, a first output oil path of the rear holder hydraulic control oil path is directly connected with the side of a spring cavity of a rear holder, and a second output oil path is directly connected with the side of the rear holder without the spring cavity. The front holder and the rear holder are totally and independently controlled by hydraulic pressure so that the clamping of the rear holder is more reliable and stable. The utility model further discloses a crawler-type tunnel drilling rig with the hydraulic system.
Description
Technical field
The utility model relates to the underground drill rig equipment technical field, particularly a kind of crawler type underground drill rig and hydraulic system thereof.
Background technology
Underground drill rig is to be used in the rig that creeps in the underground passage specially, and it is good to have disintegration property, the characteristics that parts are light, and boring direction can adjustment easily in 0 °～360 ° scopes.Underground drill rig is mainly used in and carries out geology of deep part exploration, gas drainage under suction, notes draining, ventilation and Other Engineering in the tunnel.Its type of drive can be pneumatic, surge and electronic.The dynamic head of rig critical piece, gyrator, drilling tool draw and send mechanism, drilling tool unloading device etc.In order to reduce labor intensity of operating personnel, the crawler type underground drill rig has appearred at present, realize that through its creeper undercarriage short distance moves.
The crawler type underground drill rig mainly adopts hydraulic control at present, but the front clamp device of existing crawler type underground drill rig and back clamper adopt the mode of unified control, and control accuracy is lower, and reliability is lower.
In addition, when existing crawler type underground drill rig unloaded bar, feed cylinder was in quick condition, and in the time of can't adapting to dismounting drilling rod, the variation of axial location causes squeezing the screw thread on the bad drilling rod, the application life of reducing drilling rod.
Therefore.How to make front clamp device and back clamper to control separately, improve its reliability and control accuracy, become the technical problem that those skilled in the art need to be resolved hurrily.
The utility model content
In view of this, the purpose of the utility model is to provide a kind of crawler type tunnel drilling rig hydraulic system, so that the front clamp device can be controlled separately with the back clamper, improves its reliability and control accuracy.Another purpose of the utility model is to provide a kind of crawler type underground drill rig with above-mentioned crawler type tunnel drilling rig hydraulic system.
For realizing above-mentioned purpose, the utility model provides following technical scheme:
A kind of crawler type tunnel drilling rig hydraulic system; Comprise that support cylinder, preceding support cylinder, left lateral are walked motor up and down, right lateral is walked motor, back clamper, front clamp device, rotary motor, slush pump CD-ROM drive motor, feed cylinder and tensioning hydro-cylinder, its hydraulic circuit comprises:
One group of duplex string pump, its main oil pump is connected with fuel tank with auxiliary pump oil suction strainer through main pump oil suction strainer respectively with auxiliary oil pump;
By said main oil pump walk motor with said left lateral respectively, said right lateral is walked first hydraulic control oil circuit that motor, said rotary motor, said slush pump CD-ROM drive motor and said feed cylinder are connected;
Second hydraulic control oil circuit that is connected with said up and down support cylinder and preceding support cylinder respectively by said auxiliary oil pump;
Front clamp device hydraulic control oil circuit, it has first hand-operated direction valve that is connected with the hydraulic circuit of said second hydraulic control oil circuit, and the output circuit of this first hand-operated direction valve directly is connected with the external control mouth of said front clamp device;
Back clamper hydraulic control oil circuit; It has second hand-operated direction valve that is connected with the hydraulic circuit of said second hydraulic control oil circuit; First output circuit of this second hand-operated direction valve directly is connected with the spring cavity side of said back clamper, and second output circuit directly is connected with the no spring cavity side of said back clamper.
Preferably; In above-mentioned crawler type tunnel drilling rig hydraulic system; First hydraulic control oil circuit is specially: the delivery outlet of said main oil pump connects hydraulic control proportional reversing valve group by the road; Preceding two reversal valves of this hydraulic control proportional reversing valve group are walked motor with said left lateral respectively and are walked motor with said right lateral and be connected, and the 3rd reversal valve is connected with said rotary motor, and the tetrad reversal valve is connected with said slush pump CD-ROM drive motor; The 5-linked reversal valve is connected with said feed cylinder, and the 5-linked reversal valve of said hydraulic control proportional reversing valve group is respectively by five its switchings of pilot-actuated valve control.
Preferably, in above-mentioned crawler type tunnel drilling rig hydraulic system, said second hydraulic control oil circuit is specially: the delivery outlet of said auxiliary oil pump links to each other with preceding support cylinder with support cylinder up and down through pipeline and auxiliary pump function switching valve and manual multi-path reversing valve group.
Preferably, in above-mentioned crawler type tunnel drilling rig hydraulic system, also comprise loading and unloading drilling rod hydraulic circuit, it specifically comprises:
Be connected to said feed cylinder, and control the feeding float trap group that this feed cylinder is in quick condition;
The manual guide switch reversal valve that links to each other with the hydraulic circuit of said second hydraulic control oil circuit;
The 3rd hand-operated direction valve and the 4th hand-operated direction valve that link to each other with said manual guide switch reversal valve respectively; Said the 3rd hand-operated direction valve and the parallel connection of said the 4th hand-operated direction valve; First output circuit of said the 3rd hand-operated direction valve is connected to the control mouth of said feeding float trap group, and the output circuit of said the 4th hand-operated direction valve is connected to the discharge capacity control mouth of said rotary motor and the brake port of said trainstop respectively.
Preferably, in above-mentioned crawler type tunnel drilling rig hydraulic system, said manual guide switch reversal valve and said the 4th hand-operated direction valve directly are in series with first reducing valve;
Be in series with the 3-position-3-way pilot operated directional control valve and second reducing valve on the output circuit of said the 4th hand-operated direction valve successively;
Be in series with shuttle valve on second output circuit of said the 3rd hand-operated direction valve, this shuttle valve links to each other with the control mouth of said 3-position-3-way pilot operated directional control valve through oil circuit;
Also be in series with the 3rd reducing valve on second output circuit of said the 3rd hand-operated direction valve, said the 3rd reducing valve is parallelly connected with said shuttle valve;
Also comprise the first 2/2-way pilot operated directional control valve and the second 2/2-way pilot operated directional control valve on loop and the feeding oil circuit of returning that is connected said feed cylinder, the output circuit of said the 3rd reducing valve links to each other with the input port with the control mouth of the said first 2/2-way pilot operated directional control valve and the second 2/2-way pilot operated directional control valve respectively.
Preferably, in above-mentioned crawler type tunnel drilling rig hydraulic system, also comprise:
The equalizing valve that links to each other with the input port of the delivery outlet of the said first 2/2-way pilot operated directional control valve and the second 2/2-way pilot operated directional control valve and said feeding float trap group respectively;
The flow speed control valve that links to each other with the input port of the delivery outlet of said the 3rd reducing valve and the said first 2/2-way pilot operated directional control valve respectively.
Preferably, in above-mentioned crawler type tunnel drilling rig hydraulic system, be in series with the 4th reducing valve on the input oil circuit of second hand-operated direction valve.
Preferably; In above-mentioned crawler type tunnel drilling rig hydraulic system; Also comprise the 5th hand-operated direction valve that is connected with the hydraulic circuit of said second hydraulic control oil circuit; Its input is in series with the 5th reducing valve on oil circuit, and its output circuit is walked motor and said right lateral with said left lateral respectively and walked the Variable Control mouth of motor and be connected.
A kind of crawler type underground drill rig comprises as above each described crawler type tunnel drilling rig hydraulic system.
Can find out from above-mentioned technical scheme; A kind of crawler type tunnel drilling rig hydraulic system that the utility model provides; Its hydraulic circuit comprises: one group of duplex string pump, and its main oil pump is connected with fuel tank with auxiliary pump oil suction strainer through main pump oil suction strainer respectively with auxiliary oil pump; By said main oil pump walk motor with said left lateral respectively, said right lateral is walked first hydraulic control oil circuit that motor, said rotary motor, said slush pump CD-ROM drive motor and said feed cylinder are connected; Second hydraulic control oil circuit that is connected with said up and down support cylinder and preceding support cylinder respectively by said auxiliary oil pump; Front clamp device hydraulic control oil circuit, it has first hand-operated direction valve that is connected with the hydraulic circuit of said second hydraulic control oil circuit, and the output circuit of this first hand-operated direction valve directly is connected with the external control mouth of said front clamp device; Back clamper hydraulic control oil circuit; It has second hand-operated direction valve that is connected with the hydraulic circuit of said second hydraulic control oil circuit; First output circuit of this second hand-operated direction valve directly is connected with the spring cavity side of said back clamper, and second output circuit directly is connected with the no spring cavity side of said back clamper.
Main oil pump sucks low pressure oil through main pump oil suction strainer, and the hydraulic oil of output gets into respectively that left lateral is walked motor, right lateral is walked motor, rotary motor, slush pump CD-ROM drive motor and feed cylinder, walks the just commentaries on classics of motor, stops and reversing to control left lateral respectively; Controlling right lateral walks the just commentaries on classics of motor, stops and reversing; The just commentaries on classics of control rotary motor, stop and reversing; The just commentaries on classics of control slush pump CD-ROM drive motor, stop and reversing; The feeding of control feed cylinder, stop and returning.Auxiliary oil pump sucks low pressure oil through auxiliary pump oil suction oil filter, and the hydraulic oil of output is support cylinder and preceding support cylinder extremely up and down.First hand-operated direction valve is in position, a left side, and pressure oil gets into the front clamp device, makes it to open; Second hand-operated direction valve is in position, a left side, and pressure oil gets into the back clamper does not have spring cavity, makes it to open; Second hand-operated direction valve is in right position, and hydraulic oil gets into holder spring chamber, back side, and the back clamper is pressurizeed.
The utility model adopts the load-sensitive technology, makes the operator when work, carry out the appropriateness adjustment according to concrete drilling technology.The speed of gyration of rig is easy to adjust, can change speed of gyration rapidly according to stratum difference; Velocity-stabilization particularly has the excellent protection function to rig and drilling tool in bad ground; Good energy-conserving effect, system's calorific value is little, and electric motor starting is steady.In the control of front clamp device and back clamper, adopt hydraulic pressure independently to control fully, and back clamper increase pressurization function, it is more reliable that the back clamper is stepped up, stable.
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 only 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.
The schematic diagram of the crawler type tunnel drilling rig hydraulic system that Fig. 1 provides for the utility model embodiment.
The specific embodiment
The core of the utility model is to disclose a kind of crawler type tunnel drilling rig hydraulic system, so that the front clamp device can be controlled separately with the back clamper, improves its reliability and control accuracy.Another core of the utility model is to disclose a kind of crawler type underground drill rig with above-mentioned crawler type tunnel drilling rig hydraulic system.
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only 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.
See also Fig. 1, the schematic diagram of the crawler type tunnel drilling rig hydraulic system that Fig. 1 provides for the utility model embodiment.
The disclosed crawler type tunnel drilling rig hydraulic system of the utility model embodiment comprises that support cylinder 11, preceding support cylinder 14, left lateral are walked motor 16 up and down, right lateral is walked motor 17, back clamper 20, front clamp device 21, rotary motor 23, slush pump CD-ROM drive motor 24, feed cylinder 25 and tensioning hydro-cylinder 27 etc. and carried out original paper.Wherein, its hydraulic circuit comprises:
One group of duplex string pump; It has main oil pump 1 and auxiliary oil pump 2 to constitute jointly; Main oil pump 1 is connected with fuel tank with auxiliary pump oil suction strainer 4 through main pump oil suction strainer 3 respectively with auxiliary oil pump 2, but the hydraulic oil that pumps through main pump oil suction strainer 3 and auxiliary pump oil suction strainer 4 elimination main oil pumps 1 and auxiliary oil pump 2.
By main oil pump 1 walk motor 16 with left lateral respectively, right lateral is walked first hydraulic control oil circuit that motor 17, rotary motor 23, slush pump CD-ROM drive motor 24 and feed cylinder 25 are connected.Second hydraulic control oil circuit that is connected with support cylinder up and down 11 and preceding support cylinder 14 respectively by auxiliary oil pump 2.
Front clamp device hydraulic control oil circuit, its output circuit with the one the first hand-operated direction valve 45, the one first hand-operated direction valves 45 that are connected with the hydraulic circuit of second hydraulic control oil circuit directly is connected with the external control mouth of front clamp device 21.
Back clamper hydraulic control oil circuit; It has second hand-operated direction valve 46 that is connected with the hydraulic circuit of second hydraulic control oil circuit; First output circuit of this second hand-operated direction valve 46 directly is connected with the spring cavity side of back clamper 20, and second output circuit directly is connected with the no spring cavity side of back clamper 20.
Main oil pump 1 sucks low pressure oil through main pump oil suction strainer; The hydraulic oil of output gets into respectively that left lateral is walked motor 16, right lateral is walked motor 17, rotary motor 23, slush pump CD-ROM drive motor 24 and feed cylinder 25, walks the just commentaries on classics of motor 16, stops and reversing to control left lateral respectively; , the control right lateral walk motor 17 just commentaries on classics, stop and reversing; The just commentaries on classics of control rotary motor 23, stop and reversing; The just commentaries on classics of control slush pump CD-ROM drive motor 24, stop and reversing; The feeding of control feed cylinder 25, stop and returning.Auxiliary oil pump 2 sucks low pressure oil through auxiliary pump oil suction oil filter 4, and the hydraulic oil of output is support cylinder 11 and preceding support cylinder 14 extremely up and down.First hand-operated direction valve 45 is in position, a left side, and pressure oil gets into front clamp device 21, makes it to open; Second hand-operated direction valve 46 is in position, a left side, and pressure oil gets into back clamper 20 no spring cavitys, makes it to open; Second hand-operated direction valve 46 is in right position, and hydraulic oil gets into back clamper 20 spring cavity sides, and back clamper 20 is pressurizeed.
The utility model adopts the load-sensitive technology, makes the operator when work, carry out the appropriateness adjustment according to concrete drilling technology.The speed of gyration of rig is easy to adjust, can change speed of gyration rapidly according to stratum difference; Velocity-stabilization particularly has the excellent protection function to rig and drilling tool in bad ground; Good energy-conserving effect, system's calorific value is little, and electric motor starting is steady.In the control of front clamp device and back clamper, adopt hydraulic pressure independently to control fully, and back clamper increase pressurization function, it is more reliable that the back clamper is stepped up, stable.
First hydraulic control oil circuit is specially: the delivery outlet of main oil pump 1 connects hydraulic control proportional reversing valve group 55 by the road; Preceding two reversal valves of this hydraulic control proportional reversing valve group 55 are walked motor 16 with left lateral respectively and are walked motor 17 with right lateral and be connected, and are used for controlling left lateral and walk motor 16 and walk motor 17 with right lateral.The 3rd reversal valve is connected with rotary motor 23, is used for controlling rotary motor 23.The tetrad reversal valve is connected with slush pump CD-ROM drive motor 24, is used for controlling slush pump CD-ROM drive motor 24.The 5-linked reversal valve is connected with feed cylinder 25, is used for controlling feed cylinder 25.The 5-linked reversal valve of hydraulic control proportional reversing valve group 55 is controlled its switching by five pilot-actuated valves (29,30,31,32,33) respectively.
Second hydraulic control oil circuit is specially: the delivery outlet of auxiliary oil pump 2 links to each other with preceding support cylinder 14 with support cylinder 11 up and down through pipeline and auxiliary pump function switching valve 8 and manual multi-path reversing valve group 10.Manual multi-path reversing valve group 10 is made up of spools such as the overflow valve of gasket mounted hand-operated direction valve and plug-in mounting, reducing valve.
After motor 9 started, main oil pump 1 sucked low pressure oil through main pump oil suction strainer 3, and the hydraulic oil of output gets into hydraulic control proportional reversing valve group 55.Hydraulic control proportional reversing valve group 55 and main oil pump 1 are connected feedback pressure by pipeline, middlely guarantee oil cleanliness by in-line filter 6, prevent that main oil pump 1 outside control mouth oil circuit from stopping up.Hydraulic control proportional reversing valve group 55 is made up of the 5-linked valve, first valve group control left lateral walk motor 16 just commentaries on classics, stop and reversing; The second valve group is controlled right lateral and is walked the just commentaries on classics of motor 17, stops and reversing; The just commentaries on classics of the 3rd valve group control rotary motor 23, stop and reversing; The just commentaries on classics of quadruple valve group control slush pump CD-ROM drive motor 24, stop and reversing; The feeding of 5-linked valve group control feed cylinder 25, stop and returning.When 5-linked control valve group all is in meta, main oil pump 1 off-load, oil return is got back to fuel tank through strainer 5.
Auxiliary oil pump 2 sucks low pressure oil through auxiliary pump oil suction oil filter 4; Hydraulic oil to the function transfer valve group 8 of output; Manual multi-path reversing valve group 10 and auxiliary oil pump 2 are connected feedback pressure by pipeline, middlely guarantee oil cleanliness by in-line filter 7, prevent that auxiliary oil pump 2 outside control mouth oil circuits from stopping up.
In order further to optimize technique scheme, the utility model also can comprise loading and unloading drilling rod hydraulic circuit, and it specifically comprises feeding float trap group 26, manual guide switch reversal valve 44, the 3rd hand-operated direction valve 51 and the 4th hand-operated direction valve 53.Wherein, control the feeding float trap group 26 that this feed cylinder 25 is in quick condition and be connected to feed cylinder 25, manually guide switch reversal valve 44 links to each other with the hydraulic circuit of second hydraulic control oil circuit, is used for the break-make of control oil channel.The 3rd hand-operated direction valve 51 links to each other with manual guide switch reversal valve 44 respectively with the 4th hand-operated direction valve 53; And the 3rd hand-operated direction valve 51 and the 4th hand-operated direction valve 53 are parallel with one another; First output circuit of the 3rd hand-operated direction valve 51 is connected to the control mouth of feeding float trap group 26, and the output circuit of the 4th hand-operated direction valve 53 is connected to the discharge capacity control mouth of rotary motor.
The utility model is after opening manual guide switch reversal valve 44; The 4th hand-operated direction valve 53 switches to position, a left side; Make pressure oil pass through the discharge capacity control mouth that the 4th hand-operated direction valve 53 gets into rotary motor 23, with the control motor displacement, and then the rotary torque of control rotary motor 23.Switch the 3rd hand-operated direction valve 51 to right position; Hydraulic oil gets into feeding float trap group 26 through first output circuit of the 3rd hand-operated direction valve 51; 3 2/2-way pilot operated valve device of feeding float trap group are in connected state, thereby make feed cylinder 25 be in quick condition, because feed cylinder 25 is in quick condition; Guarantee that the drilling rod screwing force drives whole feed system and travels forward, accomplish dress bar process.The utility model profit realizes interlock control according to operator's operating habit to the loading and unloading drilling rod, reduces workman's manipulation strength; Be in peak torque when making hydraulic motor loading and unloading drilling rod, for the loading and unloading drilling rod provides enough power.The utility model integrated level is high, can when the loading and unloading drilling rod, make motor that enough moments of torsion are provided, and guaranteeing has enough power loading and unloading drilling rods; Make feed cylinder be in quick condition during the dress bar, carry out servo-actuated with the power of revolution threaded together, feeding float trap group is carried out repairing to the oil cylinder that floats with the oil that lacks.The utility model is simple and practical, reliability is high, easy to operate, control accuracy is high.
When work in manual guide switch reversal valve 44 right positions, the hydraulic oil of output is through function transfer valve group 8 entering manual multi-path reversing valve groups 10, and fluid passes through equalizing valve 12 and gets into support cylinder 11 up and down, or passes through the preceding support cylinder 14 of equalizing valve 15 entering.Manually guide switch reversal valve 44 switches to position, a left side, and auxiliary oil pump 2 output oil directly get into guiding manual valve group through function transfer valve group 8, carry out pressure feedback through function transfer valve 8 direct auxiliary connection oil pumps 2, make auxiliary oil pump 2 under this operating mode, convert constant pressure pump into.
Further in order accurately to control motor displacement; The utility model directly is in series with on the output circuit of first reducing valve, 52, the four hand-operated direction valves 53 at manually guide switch reversal valve 44 and the 4th hand-operated direction valve 53 and is in series with the 3-position-3-way pilot operated directional control valve 43 and second reducing valve 42 successively.Be in series with shuttle valve 41 on second output circuit of the 3rd hand-operated direction valve 51, this shuttle valve 41 links to each other with the control mouth of 3-position-3-way pilot operated directional control valve 43 through oil circuit.
Based on above-mentioned setting, behind the electric motor starting, hydraulic pump 1 sucks low pressure oil from fuel tank 2, and the hydraulic oil of output gets into the cartridge valve group.Manually guide switch reversal valve 44 switches to position, a left side, and control oil channel is connected.The 4th hand-operated direction valve 53 switches to left side position, makes pressure oil through 52 decompressions of first reducing valve, through the 4th hand-operated direction valve 53,3-position-3-way pilot operated directional control valve 43; Get into the discharge capacity control mouth of rotary motor 23, through regulating the force value of first reducing valve 52, control rotary motor 23 discharge capacities; And then control rotary motor 23 rotary torques; Owing to select the discharge capacity of rotary motor 23 for use, reduce with the rising of control-oil pressure, the pressure that second reducing valve 42 is set is rotary motor 23 discharge capacities required force value when maximum; So after 3-position-3-way pilot operated directional control valve 43 switched, rotary motor 23 moments of torsion were maximum.
Switch the 3rd hand-operated direction valve 51 to right position, one tunnel control oil gets into feeding float trap group 26 through the 3rd hand-operated direction valve 51, and 3 2/2-way pilot operated valve device of feeding float trap group 26 are in connected state; Another road control oil gets into the control mouth of 3-position-3-way pilot operated directional control valve 43 through shuttle valve 41; Make 3-position-3-way pilot operated directional control valve 43 switch to position, a left side; Pressure oil gets into rotary motor 23 discharge capacities control mouth through second reducing valve 42; After 3-position-3-way pilot operated directional control valve 43 switched, rotary motor 23 discharge capacities were maximum, when guaranteeing to load and unload enough moments of torsion can be provided.The joystick of operation rotary motor 23 makes rotary motor 23 revolutions, drives drilling rod and tightens automatically, because feed cylinder 25 is in quick condition, guarantees that the drilling rod screwing force drives whole feed system and travels forward, and accomplishes dress bar process.
For when unloading bar, feed cylinder 25 provides reversal interlocking relay, plays a protective role with double thread, and it is parallelly connected with shuttle valve 41 also to be in series with the 3rd reducing valve 40, the three reducing valve 40 on second output circuit of the 3rd hand-operated direction valve 51.The utility model can comprise that also the first 2/2-way pilot operated directional control valve 37 and the output circuit of the second 2/2-way pilot operated directional control valve, 38, the three reducing valve 40 return on loop and the feeding oil circuit that are connected feed cylinder 25 link to each other with the input port with the control mouth of the first 2/2-way pilot operated directional control valve 37 with the second 2/2-way pilot operated directional control valve 38 respectively.
In order to make feed cylinder 25 reverse pull-back speed adjustable; The utility model also can comprise respectively the equalizing valve that links to each other with the input port of the delivery outlet of the first 2/2-way pilot operated directional control valve 37 and the second 2/2-way pilot operated directional control valve 38 and feeding float trap group 26, and the flow speed control valve 39 that links to each other with the input port of the delivery outlet of the 3rd reducing valve 40 and the first 2/2-way pilot operated directional control valve 37 respectively.
Switch the 3rd hand-operated direction valve 51 to position, a left side; One tunnel control oil gets into the control mouth of 3-position-3-way pilot operated directional control valve 43 through shuttle valve 41; Make 3-position-3-way pilot operated directional control valve 43 switch to position, a left side, pressure oil gets into motor displacement control mouth through second reducing valve 42, after 3-position-3-way pilot operated directional control valve 43 switches; Motor displacement is maximum, when guaranteeing to load and unload enough moments of torsion can be provided.Through the control oil of the 3rd reducing valve 40, one tunnel control oil makes these two pilot operated directional control valves be in conducting state through the control mouth of the 3rd reducing valve 40 entering first 2/2-way pilot operated directional control valves 37 and the second 2/2-way pilot operated directional control valve 38; Another road control oil through flow speed control valve 39, the first 2/2-way pilot operated directional control valve 37, feeding float trap group 26, get into the rod chamber of feed cylinder 25; The conducting of the second 2/2-way pilot operated directional control valve 38 makes the rodless cavity of feed cylinder 25 be connected with return line simultaneously.Through above-mentioned principle, operation rotary motor 23 reversed turnings form one and unload stick force, switch to Zuo Weihou at the 3rd hand-operated direction valve 51 and form a reversal interlocking relay at feed cylinder 25 rod chambers, and screw thread is become flexible.So when unloading bar, turn round the moment of torsion that provides, the reversal interlocking relay acting in conjunction that feed cylinder 25 provides, accomplish the bar process of unloading by motor; In this process, the speed of the loosening screw thread of bar and the speed of pulling back of feed cylinder 25 are unloaded in revolution, regulate through flow speed control valve 39.
The disclosed crawler type tunnel drilling rig hydraulic system of the utility model embodiment, the use through cartridge valve make level of integrated system high, can when the loading and unloading drilling rod, make motor that enough moments of torsion are provided, and guaranteeing has enough power loading and unloading drilling rods; Make feed cylinder 25 be in quick condition during the dress bar, carry out servo-actuated with the power of revolution threaded together, 26 pairs of feed cylinders 25 of feeding float trap group carry out repairing with the oil that lacks; Power provides moment of torsion, feed cylinder 25 that the reversal interlocking relay acting in conjunction is provided by rotary motor when unloading bar, and double thread plays a protective role when increasing active force.
Usually feed cylinder 25 return the loop and the feeding oil circuit is provided with feed control oil passage; Promptly be connected with hand-operated direction valve 50 returning on loop and the feeding oil circuit of feed cylinder 25; Hand-operated direction valve 50 links to each other with the output of manual guide switch reversal valve 44 through pipeline; Guaranteeing the unimpeded of oil circuit, and manually be provided with reducing valve 36 between guide switch reversal valve 44 and the hand-operated direction valve 50.
When work in this position, hand-operated direction valve 50 left side, feed cylinder 25 is return; When work in these hand-operated direction valve 50 right positions, feed cylinder 25 feedings; When this hand-operated direction valve 50 metas work, feed cylinder 25 stops.
Be in series with the 4th reducing valve 34 on the input oil circuit of second hand-operated direction valve 46.The utility model also can comprise the 5th hand-operated direction valve 48 that is connected with the hydraulic circuit of second hydraulic control oil circuit; Its input is in series with the 5th reducing valve 47 on oil circuit, and its output circuit is walked the Variable Control mouth that motor 16 and right lateral walk motor 17 with left lateral respectively and is connected.
Manually guide switch reversal valve 44 is in position, a left side, and pressure oil gets into five pilot-actuated valves (29,30,31,32,33) through the 4th reducing valve 34; First hand-operated direction valve 45 is in position, a left side, and pressure oil gets into front clamp device 21, makes it to open; Second hand-operated direction valve 46 is in position, a left side, and pressure oil gets into front clamp device 21 no spring cavitys, makes it to open; Second hand-operated direction valve 46 is in right position, and hydraulic oil gets into front clamp device 21 spring cavity sides, and the front clamp device is pressurizeed.The 5th hand-operated direction valve 48 is in left side position, and fluid gets into left lateral through the 5th reducing valve 47 and walks the Variable Control mouth that motor 16, right lateral are walked motor 17, control motor displacement.Hand-operated direction valve 50 is in position, a left side, pressure oil process reducing valve 36, and hand-operated direction valve 50, one-way throttle valve 49 gets into feed cylinder 25 rod chambers; Hand-operated direction valve is in right position, and pressure oil is through reducing valve 36, and hand-operated direction valve 50 gets into feed cylinder 25 rodless cavities; Regulate 36 pairs of feedings of reducing valve, return pressure and regulate, regulate 49 pairs of feed speeds of one-way throttle valve and regulate.The 3rd hand-operated direction valve 51 is in position, a left side; Hydraulic oil is divided into two-way behind the 3rd hand-operated direction valve 51, the 3rd reducing valve 40; One road hydraulic oil makes the two be in normally open through the pilot control opening that valve piece internal pipeline gets into the first 2/2-way pilot operated directional control valve 37 and the second 2/2-way pilot operated directional control valve 38, and another road hydraulic oil gets into feed cylinder 25 rod chambers through flow speed control valve 39, the first 2/2-way pilot operated directional control valve 37; Oil cylinder is controlled; Regulate 40 pairs of feed pressures of the 3rd reducing valve and regulate, regulate 39 pairs of feed speeds of flow speed control valve and regulate, pressure and flow are mated; The 3rd hand-operated direction valve 51 is in right position, and pressure oil gets into feeding float trap group 26 by the road, makes oil cylinder be in quick condition.Hand-operated direction valve is in position, a left side; Pressure oil gets into rotary motors 23 external control variable mouths through first reducing valve 52, the 4th hand-operated direction valve 53,3-position-3-way pilot operated directional control valve 4; Pressure through regulating first reducing valve 52 is regulated rotary motor 23 discharge capacities, and then the control rotary torque.
In sum, the utility model adopts the load-sensitive technology, makes the operator when work, carry out the appropriateness adjustment according to concrete drilling technology.The speed of gyration of rig is easy to adjust, can change speed of gyration rapidly according to stratum difference; Velocity-stabilization particularly has the excellent protection function to rig and drilling tool in bad ground; Good energy-conserving effect, system's calorific value is little; Electric motor starting is steady.
In the control of front clamp device 21 and back clamper 20, adopt hydraulic pressure independently to control fully, and back clamper 20 increase pressurization functions, it is more reliable that back clamper 20 is stepped up, stable; Have automatic loading and unloading drilling rod function simultaneously,, control the revolution forward or reverse afterwards, accomplish and adorn bar automatically, unload bar, the non-cutting time when the minimizing workman operates labour intensity and work through operating corresponding operating grip.In the auxiliary pump system, increase miscellaneous function, outputting power is controlled small-sized mud agitator, the power source when having reduced work.Drive hydraulic motor through auxiliary pump, realize driving, thereby regulate the rotating speed of slush pump CD-ROM drive motor 24, realize adjusting slush pump CD-ROM drive motor 24 speed through the discharge capacity of governor motor to slush pump CD-ROM drive motor 24.
The utility model embodiment also discloses a kind of crawler type underground drill rig with above-mentioned crawler type tunnel drilling rig hydraulic system; Owing to possess this crawler type tunnel drilling rig hydraulic system; Therefore possess all technique effects of above-mentioned crawler type tunnel drilling rig hydraulic system, this paper repeats no more at this.
Each embodiment adopts the mode of going forward one by one to describe in this manual, 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 (9)
1. crawler type tunnel drilling rig hydraulic system; Comprise that support cylinder (11), preceding support cylinder (14), left lateral are walked motor (16) up and down, right lateral is walked motor (17), back clamper (20), front clamp device (21), rotary motor (23), slush pump CD-ROM drive motor (24), feed cylinder (25) and tensioning hydro-cylinder (27); It is characterized in that its hydraulic circuit comprises:
One group of duplex string pump, its main oil pump (1) is connected with fuel tank with auxiliary pump oil suction strainer (4) through main pump oil suction strainer (3) respectively with auxiliary oil pump (2);
By said main oil pump (1) walk motor (16) with said left lateral respectively, said right lateral is walked first hydraulic control oil circuit that motor (17), said rotary motor (23), said slush pump CD-ROM drive motor (24) and said feed cylinder (25) are connected;
Second hydraulic control oil circuit that is connected with said up and down support cylinder (11) and preceding support cylinder (14) respectively by said auxiliary oil pump (2);
Front clamp device hydraulic control oil circuit, it has first hand-operated direction valve (45) that is connected with the hydraulic circuit of said second hydraulic control oil circuit, and the output circuit of this first hand-operated direction valve (45) directly is connected with the external control mouth of said front clamp device (21);
Back clamper hydraulic control oil circuit; It has second hand-operated direction valve (46) that is connected with the hydraulic circuit of said second hydraulic control oil circuit; First output circuit of this second hand-operated direction valve (46) directly is connected with the spring cavity side of said back clamper (20), and second output circuit directly is connected with the no spring cavity side of said back clamper (20).
2. crawler type tunnel drilling rig hydraulic system as claimed in claim 1; It is characterized in that; First hydraulic control oil circuit is specially: the delivery outlet of said main oil pump (1) connects hydraulic control proportional reversing valve group (55) by the road; Preceding two reversal valves of this hydraulic control proportional reversing valve group (55) are walked motor (16) with said left lateral respectively and are walked motor (17) with said right lateral and be connected, and the 3rd reversal valve is connected with said rotary motor (23), and the tetrad reversal valve is connected with said slush pump CD-ROM drive motor (24); The 5-linked reversal valve is connected with said feed cylinder (25), and the 5-linked reversal valve of said hydraulic control proportional reversing valve group (55) is respectively by five its switchings of pilot-actuated valve control.
3. crawler type tunnel drilling rig hydraulic system as claimed in claim 2; It is characterized in that said second hydraulic control oil circuit is specially: the delivery outlet of said auxiliary oil pump (2) links to each other with preceding support cylinder (14) with support cylinder (11) up and down through pipeline and auxiliary pump function switching valve (8) and manual multi-path reversing valve group (10).
4. crawler type tunnel drilling rig hydraulic system as claimed in claim 1 is characterized in that, also comprises loading and unloading drilling rod hydraulic circuit, and it specifically comprises:
Be connected to said feed cylinder (25), and control the feeding float trap group (26) that this feed cylinder (25) is in quick condition;
The manual guide switch reversal valve (44) that links to each other with the hydraulic circuit of said second hydraulic control oil circuit;
The 3rd hand-operated direction valve (51) that links to each other with said manual guide switch reversal valve (44) respectively and the 4th hand-operated direction valve (53); Said the 3rd hand-operated direction valve (51) and said the 4th hand-operated direction valve (53) parallel connection; First output circuit of said the 3rd hand-operated direction valve (51) is connected to the control mouth of said feeding float trap group (26), and the output circuit of said the 4th hand-operated direction valve (53) is connected to the discharge capacity control mouth of said rotary motor (23) and the brake port of said trainstop (22) respectively.
5. crawler type tunnel drilling rig hydraulic system as claimed in claim 4 is characterized in that, said manual guide switch reversal valve (44) and said the 4th hand-operated direction valve (53) directly are in series with first reducing valve (52);
Be in series with 3-position-3-way pilot operated directional control valve (43) and second reducing valve (42) on the output circuit of said the 4th hand-operated direction valve (53) successively;
Be in series with shuttle valve (41) on second output circuit of said the 3rd hand-operated direction valve (51), this shuttle valve (41) links to each other with the control mouth of said 3-position-3-way pilot operated directional control valve (43) through oil circuit;
Also be in series with the 3rd reducing valve (40) on second output circuit of said the 3rd hand-operated direction valve (51), said the 3rd reducing valve (40) is parallelly connected with said shuttle valve (41);
Also comprise the first 2/2-way pilot operated directional control valve (37) and the second 2/2-way pilot operated directional control valve (38) on loop and the feeding oil circuit of returning that is connected said feed cylinder (25), the output circuit of said the 3rd reducing valve (40) links to each other with the input port with the control mouth of the said first 2/2-way pilot operated directional control valve (37) and the second 2/2-way pilot operated directional control valve (38) respectively.
6. crawler type tunnel drilling rig hydraulic system as claimed in claim 5 is characterized in that, also comprises:
The equalizing valve that links to each other with the input port of the delivery outlet of the said first 2/2-way pilot operated directional control valve (37) and the second 2/2-way pilot operated directional control valve (38) and said feeding float trap group (26) respectively;
The flow speed control valve (39) that links to each other with the input port of the delivery outlet of said the 3rd reducing valve (40) and the said first 2/2-way pilot operated directional control valve (37) respectively.
7. crawler type tunnel drilling rig hydraulic system as claimed in claim 1 is characterized in that, is in series with the 4th reducing valve (34) on the input oil circuit of second hand-operated direction valve (46).
8. crawler type tunnel drilling rig hydraulic system as claimed in claim 1; It is characterized in that; Also comprise the 5th hand-operated direction valve (48) that is connected with the hydraulic circuit of said second hydraulic control oil circuit; Its input is in series with the 5th reducing valve (47) on oil circuit, and its output circuit is walked motor (16) and said right lateral with said left lateral respectively and walked the Variable Control mouth of motor (17) and be connected.
9. a crawler type underground drill rig is characterized in that, comprises each described crawler type tunnel drilling rig hydraulic system like claim 1-8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202659570U CN202152651U (en) | 2011-07-25 | 2011-07-25 | Crawler-type tunnel drilling rig and hydraulic system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202659570U CN202152651U (en) | 2011-07-25 | 2011-07-25 | Crawler-type tunnel drilling rig and hydraulic system thereof |
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| CN202152651U true CN202152651U (en) | 2012-02-29 |
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| CN2011202659570U Expired - Fee Related CN202152651U (en) | 2011-07-25 | 2011-07-25 | Crawler-type tunnel drilling rig and hydraulic system thereof |
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| CN106555783A (en) * | 2016-10-31 | 2017-04-05 | 广西固瑞科技股份有限公司 | A kind of hydraulic system of split type twist bit |
| CN109944835A (en) * | 2019-04-02 | 2019-06-28 | 重庆平山矿山机电设备有限公司 | A kind of hydraulic system and drilling machine of drilling machine |
| CN109944835B (en) * | 2019-04-02 | 2024-04-23 | 重庆平山机电设备有限公司 | Hydraulic system of drilling machine and drilling machine |
| CN113944670A (en) * | 2021-11-11 | 2022-01-18 | 海南银星振华智能装备有限公司 | Shifting mechanism of drilling rig and shifting method thereof |
| CN115596730A (en) * | 2022-11-07 | 2023-01-13 | 中国矿业大学（Cn） | Hydraulic control system and method for fully-autonomous loading and unloading of drilling tool of anti-impact drilling robot |
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