CN203796167U - Hydraulic locking rear-support drilling machine - Google Patents
Hydraulic locking rear-support drilling machine Download PDFInfo
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- CN203796167U CN203796167U CN201420206083.5U CN201420206083U CN203796167U CN 203796167 U CN203796167 U CN 203796167U CN 201420206083 U CN201420206083 U CN 201420206083U CN 203796167 U CN203796167 U CN 203796167U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000012530 fluid Substances 0.000 claims description 31
- 239000002828 fuel tank Substances 0.000 claims description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 7
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Abstract
The utility model relates to a hydraulic locking rear-support drilling machine comprising a hydraulic power station, a frame, guide rails, a sliding table, a propelling oil cylinder, a hydraulic clamp, a drill pipe, a drill bit, a power head, a hydraulic motor, a disc water inlet, a spindle and support oil cylinders. The guide rails are arranged in the length direction of the frame, the sliding table is arranged at the rear ends of the guide rails, the propelling oil cylinder drives the sliding table to slide, the hydraulic clamp is arranged at the front ends of the guide rails, the drill rod and the drill bit are fittingly connected with the front end of the hydraulic clamp, the power head is arranged on the sliding table, the hydraulic motor is fittingly connected with the rear end of the power head, the disc water inlet is arranged at the front end of the power head, one end of the spindle is fittingly connected with the front end of the power head, the other end of the spindle is fittingly connected with the rear end of the hydraulic clamp, the front ends of the support oil cylinders cling to the rear end of the frame, and the rear ends of the support oil cylinders cling to a base on the ground or rock. The support oil cylinders, the hydraulic clamp, the propelling oil cylinder and the hydraulic motor are respectively connected with the hydraulic power station through oil pipes. The hydraulic locking rear-support drilling machine is capable of balancing drilling force and preventing the drilling machine body from backwardly moving under the condition of drilling.
Description
Technical field
The utility model relates to down-hole rig, is specifically related to a kind of hydraulic locking rear support rig.
Background technology
All-hydraulic down-hole rig has compact conformation, and pressure and Flow-rate adjustment are convenient, adopts split type combination type to be convenient to transhipment, and suitable especially in southwest, narrow roadway is used.At present conventional its output torque of medium and small type have 650,750,1250, numerous types such as 1800/Nm, but remain following deficiency:
(1) existing most of down-hole rig adopts hydraulic motor to join the moment output form of mechanical gear box, adopt the high rotating speed input of hydraulic motor slow-speed of revolution way of output again after multi-stage gear speed change to realize the effect that moment increases, due to input service pressure≤16Mpa, larger through multi-stage mechanical transmission gear shift loss in efficiency, power density is lower, cause executive component volume to increase, the heavy inconvenience of body is mobile, and the coupling of underground hydraulic pressure rig is unreasonable;
(2) for preventing that rig body when the drilling condition from moving backward, the rig design of current down-hole all adopts and creeps into body active force backward while offset by the mode of the support top up and down that force direction is vertical to creep into, hardness factor≤8, rock stratum up and down due to support top in colliery, it is very insecure by the frictional force of above-below direction between support top and rock stratum, carrying out the power of creeping into of equilibrium level direction, often occur that support top ore body is broken, the body operating mode that movement cannot be crept into backward.For meeting practice of construction needs, the body both sides of being everlasting are at the construction field (site) welded the many places strong point voluntarily, adopt many oblique rigid support to offset the power of creeping into, and this process operation inconvenience and labour intensity are large, every movement 1 construction point needs again to support again, time-consuming effort again.
And for example the disclosed a kind of all-hydraulic drill of CN2042109, is comprised of pumping plant, console, frame, column, gyrator and drilling tool etc.All-hydraulic drill adopts " A " type frame, twin-tub guide rod rotary structure.Gyrator part consists of oil motor, gyrator reduction box, oild chuck, propelling cylinder, water pigtail, guide peg, hydraulic gripper.This rig intensity and efficiency are higher, install and adjust angle is rapidly convenient, realized dismounting drilling rod full mechanization, labor strength is little, is applicable to coal mine gas and takes out bleeder off hole, anti-fire extinguishing grouting and coal-bed flooding boring, visit water hole, cable aperture, pilot hole and geological prospecting hole, but still there is rig body mobile problem backward when drilling condition, make to creep into operation and be difficult to continue carry out.
Therefore, be necessary existing all-hydraulic down-hole rig to be improved.
Summary of the invention
The purpose of this utility model is to provide a kind of hydraulic locking rear support rig, can balance creep into power, when drilling condition, can prevent that rig body from moving backward.
Hydraulic locking rear support rig described in the utility model, comprise hydraulic power station, frame, be located at the guide rail on described frame length direction, the propelling cylinder that is located at the slide unit in described guide rail rearward end and drives this slide unit to slide, be located at the hydraulic gripper on described guide rail leading section, the drilling rod and the drill bit that are connected with described hydraulic gripper front end, be located at the unit head on described slide unit, the hydraulic motor being connected with described unit head rear end, the water being located on described unit head leading section is distinguished water inlet, the main shaft that one end and described unit head front end are connected, the other end of described main shaft and the rear end of described hydraulic gripper are connected, also comprise support cylinder, the front end of this support cylinder and the rear end of described frame near, the rear end of described support cylinder be located on the ground or crag on pedestal near, described support cylinder, hydraulic gripper, propelling cylinder is connected with described hydraulic power station by oil pipe respectively with hydraulic motor.
Described hydraulic power station comprises Portable operation support, fire-proof motor, duplex gear pump and fuel tank, and the output shaft of described fire-proof motor is connected with the driving gear shaft of the front pump of duplex gear pump;
Described Portable operation support is provided with the first pressure meter, the second pressure meter, integrated multipath valve, first throttle valve and the second choke valve;
Described integrated multipath valve comprises inlet valve group, the first valve group, second valve group, the 3rd valve group, the 4th valve group, the 5th valve group and converging valve group;
The oil-out of the front pump of described duplex gear pump is connected with the oil-in of described inlet valve group by high-pressure rubber pipe; The oil-out of the rear pump of described duplex gear pump is connected with the oil-in of described converging valve group by high-pressure rubber pipe; Two hydraulic fluid ports of described the first valve group are connected with the two ends hydraulic fluid port of described hydraulic motor by high-pressure rubber pipe, and two hydraulic fluid ports of the first valve group are also connected with the two ends hydraulic fluid port of the second choke valve by oil pipe; Two hydraulic fluid ports of described second valve group are connected with the two ends hydraulic fluid port of first throttle valve by oil pipe; Two hydraulic fluid ports of described the 3rd valve group are connected with two chamber actuator ports of described propelling cylinder by high-pressure rubber pipe; Two hydraulic fluid ports of described the 4th valve group are connected with the two cavity oil mouth of described support cylinder by high-pressure rubber pipe; Two hydraulic fluid ports of described the 5th valve group are connected with the hydraulic fluid port of described hydraulic gripper by high-pressure rubber pipe; The oil return opening of described inlet valve group, the first valve group, second valve group, the 3rd valve group, the 4th valve group, the 5th valve group and converging valve group is connected with the oil return opening of fuel tank by high-pressure rubber pipe respectively; Described the first pressure meter is connected with the pressure interface of described inlet valve group by pipeline; Described the second pressure meter is connected with the in-line joint of described converging valve group by pipeline.
Length direction in the front end edge frame of frame is connected with length adjustment bar.
In described the 4th valve group, be integrated with pilot-operated hydraulic lock.
The beneficial effects of the utility model:
(1) adopt at two small-scale liquid cylinder pressures of frame rear end installation and do synchronous support, in the horizontal direction of same stressed effect, with counteracting, creep into power with drill bit, alleviated hand labor intensity, improved work efficiency, owing to having adopted hydraulic locking mode to make stressed support more reliable, and guarantee that frame normally works within the scope of inclination angle at 0～90 degree, and greatly improved current employing and held up and down by the frictional force of vertical direction and come balance to creep into the mode of power, eliminated the drawback that while creeping into, frame retreats;
(2) adopt low speed high torque hydraulic motor directly to drive unit head, cancelled mechanical gear box, improved transmission efficiency and reduced mechanicalness noise; Owing to having cancelled gearbox, greatly alleviated unit head weight, made frame lighter in down-hole man-handling of materials;
(3) under identical input power, owing to having adopted the high-pressure hydraulic of 20～25Mpa, and reduced working flow, than conventional underground drill rig operating pressure, improve 25～35%, output torque increases 6%; In the situation that meeting equal operating mode speed, flow reduces 20%, makes the volume of corresponding supporting hydraulic pump, banked direction control valves, hydraulic cylinder, fuel tank and weight reduce 20% left and right, makes whole drill configuration compacter more exquisite, and in down-hole, transhipment is lighter;
(5) adopt the multi-way valve of integrated control, the feature that has that volume is little, pressure is high, flow is large, it is light to handle, can the multiple aux. control valve of plug-in mounting, than existing conventional banked direction control valves flow allowable, increase 30%, weight saving 1/3, eliminated flow loss between the sheet of present conventional banked direction control valves, reduced power attenuation and system heating, made system works more reliable, the movement of Portable operation support is lighter;
(6) each several part due to all-hydraulic down-hole rig all adopts high-pressure rubber pipe to connect, with the comparison of same specification rig: because this project 800Nm drilling rig hydraulic system working flow reduces 20% than now with conventional 750Nm drilling rig hydraulic system working flow, therefore the high-pressure rubber pipe latus rectum adopting has reduced 20%, both alleviated the requirement that weight has also guaranteed that working pressure improves, installed, transhipment is lighter and reduced auxiliary equipment cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of hydraulic power head in the utility model;
Fig. 3 is the structural representation of hydraulic gripper in the utility model;
Fig. 4 is the structural representation of hydraulic power station in the utility model;
Fig. 5 is the structural representation of Portable operation support in the utility model;
Fig. 6 is the structural representation of integrated multipath valve in the utility model;
Fig. 7 is hydraulic schematic diagram of the present utility model;
Wherein: 1, unit head, 2, hydraulic motor, 3, hydraulic gripper, 4, slip spider, 5, butterfly spring group, 6, arm-tie, 7, claw, 8, drilling rod, 9, drill bit, 10, frame, 11, slide unit, 12, guide rail, 13, support cylinder, 14, adjusting rod, 15, propelling cylinder, 16, hydraulic power station, 17, duplex gear pump, 18, fire-proof motor, 19, fuel tank, 20, high-pressure rubber pipe, 21, Portable operation support, 22, oil pipe, 23, integrated multipath valve, 24, inlet valve group, 25, the first valve group, 26, second valve group, 27, the 3rd valve group, 28, the 4th valve group, 29, the 5th valve group, 30, converging valve group, 31, first throttle valve, 32, the second choke valve, 33, hydraulic quick coupler, 34, the first pressure meter, 35, the second pressure meter, 36, water is distinguished water inlet, 37, main shaft, 38, pedestal.
The specific embodiment
Now by reference to the accompanying drawings the utility model is described in further detail:
As shown in Figures 1 to 6, described hydraulic locking rear support rig, comprises hydraulic power station 16, frame 10, be located at the guide rail 12 on described frame length direction, the propelling cylinder 15 that is located at the slide unit 11 in described guide rail rearward end and drives this slide unit to slide, be located at the hydraulic gripper 3 on described guide rail leading section, the drilling rod 8 and the drill bit 9 that are connected with described hydraulic gripper front end, be located at the unit head 1 on described slide unit, the hydraulic motor 2 being connected with described unit head rear end, the water being located on described unit head leading section is distinguished water inlet 36, the main shaft 37 that one end and described unit head front end are connected, the rear end of the other end of described main shaft 37 and described hydraulic gripper 3 is connected, also comprise two support cylinders 13, the front end of two support cylinders 13 respectively with the rear end of described frame 10 near, the rear end of two support cylinders respectively be located on the ground or crag on pedestal 38 near (pedestal adopts square rectangular sleeper conventionally), two described support cylinders 13, hydraulic gripper 3, propelling cylinder 15 is connected with described hydraulic power station 16 by oil pipe respectively with hydraulic motor 2.And be connected with length adjustment bar 14 at the length direction of the front end edge frame 10 of frame 10.
As shown in Figure 3, described hydraulic gripper 3 comprises slip spider 4, arm-tie 6, claw 7 and butterfly spring group 5.
As shown in Figure 4, described hydraulic power station 16 comprises Portable operation support 2, fire-proof motor 18, duplex gear pump 17 and fuel tank 19, and the output shaft of described fire-proof motor 18 is connected with the driving gear shaft of the front pump of duplex gear pump 17.
As shown in Figure 5, described Portable operation support 21 is provided with the first pressure meter 34, the second pressure meter 35, integrated multipath valve 23, first throttle valve 31 and the second choke valve 32.
As shown in 6, described integrated multipath valve 23 is followed successively by inlet valve group 24, the first valve group 25, second valve group 26, the 3rd valve group 27, the 4th valve group 28, the 5th valve group 29 and converging valve group 30 from right to left.
As shown in Figure 7, the annexation of inlet valve group 24, the first valve group 25, second valve group 26, the 3rd valve group 27, the 4th valve group 28, the 5th valve group 29, converging valve group 30, the first pressure meter 34, the second pressure meter 35, integrated multipath valve 23, first throttle valve 31, the second choke valve 32, duplex gear pump 17, hydraulic gripper 3, hydraulic motor 2, support cylinder 13 and propelling cylinder 15 is as follows:
The oil-out of the front pump of described duplex gear pump 17 is connected with the oil-in of described inlet valve group 24 by high-pressure rubber pipe 20, and the oil-out of the rear pump of described duplex gear pump 17 is connected with the oil-in of described converging valve group 30 by high-pressure rubber pipe 20; Two hydraulic fluid ports of described the first valve group 25 are connected with the two ends hydraulic fluid port of described hydraulic motor 2 by high-pressure rubber pipe 20, two hydraulic fluid ports of the first valve group 25 are also connected with the two ends hydraulic fluid port of the second choke valve 32 by oil pipe 22, the bleed-off circuit of composition control hydraulic motor 2 speeds of gyration; Two hydraulic fluid ports of described second valve group 26 are connected with the two ends hydraulic fluid port of first throttle valve 31 by oil pipe 22, the bleed-off circuit of composition control rate of penetration; Two hydraulic fluid ports of described the 3rd valve group 27 are connected with two chamber actuator ports of described propelling cylinder 15 by high-pressure rubber pipe 20; Two hydraulic fluid ports of described the 4th valve group 28 are connected with the two cavity oil mouth of described support cylinder 13 by high-pressure rubber pipe 20; Two hydraulic fluid ports of described the 5th valve group 29 are connected with the hydraulic fluid port of described hydraulic gripper 3 by high-pressure rubber pipe 20; The oil return opening of described inlet valve group 24, the first valve group 25, second valve group 26, the 3rd valve group 27, the 4th valve group 28, the 5th valve group 29 and converging valve group 30 is connected with the oil return opening of fuel tank 19 by high-pressure rubber pipe 20 respectively; Described the first pressure meter 34 is connected with the pressure interface of described inlet valve group 24 by pipeline; Described the second pressure meter 35 is connected with the in-line joint of described converging valve group 30 by pipeline.
After above-mentioned connection completes, be hydraulic control circuit and the effective operating mechanism of complete, the pressure oil of hydraulic power station output, by the reversing maneuver of the different valve groups of integrated multipath valve 23, is controlled the executive component of each mechanism and is realized the motor function of setting, and meets operations needs.
During work, the water on unit head 1 is distinguished to water inlet 36 is connected with outside water inlet pipe, open after water valve and external pressure cooling water can be entered into drill bit 9 front ends by the endoporus by drilling rod 8, for cooling drill bit 9 with discharge rock ballast.
As shown in Figure 7, operating principle of the present utility model:
When the fire-proof motor 18 being arranged on hydraulic power station 16 drives duplex gear pump 17 rotations, fluid in fuel tank 19 enters into the oil-in of duplex gear pump 17 under the effect of negative pressure through built-in oil-suction oil filter, pressure oil after duplex gear pump 17 rotating boostings enters into respectively the oil-in of right-hand member inlet valve group 24 and the oil-in of converging valve group 30 of the integrated multipath valve 23 being arranged on Portable operation support 21 through high-pressure rubber pipe 20, the pressure regulator valve that adjusting is arranged in inlet valve group 24 and converging valve group 30 can be realized different operating pressures, but the operating pressure of converging valve group 30 should be less than or equal to the operating pressure that inlet valve group 24 regulates, pressure requirement when meeting Dual-pump flow-converging, handle the 4th valve group 28 commutations of integrated multipath valve 23, the piston rod of two support cylinders 13 of frame 10 rear ends is synchronously stretched out, the length of the apparent distance can install adjusting rod 14 additional, object is that frame 10 is stably abutted against on the pedestal 38 of ground or crag supporting surface, now handle the 4th valve group 28 commutations of integrated multipath valve 23 and reply meta, be arranged on pilot-operated hydraulic lock in this valve group and closed the oil return opening of support cylinder 13, support cylinder 13 is not changed holding position for a long time,
The drilling rod of a 800mm full-length 8 is put into the main aperture of hydraulic gripper 3, the 5th valve group 29 commutations of handling integrated multipath valve 23 make hydraulic gripper 3 oil cylinder working chamber pressure oils discharge oil sump tank 19 through back oil road, and three uniform claws 7 of butterfly spring group 5 promotion slip spider 4 its inner periphery of compression extend radially out holds drilling rod 8 tightly.The 3rd valve group 27 commutation of now handling integrated multipath valve 23 makes propelling cylinder 15 go to fast external screw thread that low speed proceeds to drilling rod 8 and be held tightly the internal thread interface place of drilling rod 8 by hydraulic gripper 3, then the 3rd valve group 27 of handling integrated multipath valve 23 commutates propelling cylinder 15 to quick condition; The first valve group 25 commutations of handling integrated multipath valve 23 make hydraulic motor 2 low-speed runnings, now the external screw thread of the main shaft 37 of unit head be screwed into by hydraulic gripper 3 hold tightly in the internal thread of drilling rod 8, realize with drilling rod between firm docking.With spanner, the internal thread of drill bit 9 is inserted in the external screw thread of drilling rod 8 other ends and tightens; The 4th valve group 28 commutations of handling integrated multipath valve 23 make pressure oil enter hydraulic gripper 3 oil cylinder working chambers promote slip spiders 4 compression butterfly spring groups 5 make three claws 7 that slip spider 4 inner peripherys are divided equally radially shrink back and drilling rod 8 between form larger gap, to meet drilling rod 8, under the drive of hydraulic power head, realize and rotating freely; Handle the 4th valve group 29 of integrated multipath valve 23 and reply meta, and pull out the one end that is arranged on the hydraulic quick coupler 33 on hydraulic gripper 3 oil cylinder ports, the other end one way valve that now hydraulic gripper 3 oil cylinder oil return lines are connected the hydraulic quick coupler 33 of oil port seals, and makes hydraulic gripper 3 in drilling process, not be subject to unexpected interference and in steady-working state; The 3rd valve group 27 commutations of handling integrated multipath valve 23 enter pressure oil to be arranged on the rodless cavity of the propelling cylinder 15 under slide unit 11, slide unit 11 proceeds to hydraulic power head work the critical place that drill bit 9 contacts with crag along the guide rail 12 in frame 10, regulates first throttle valve 31 can change the work speed of slide unit 11; The first valve group 25 commutation of now handling integrated multipath valve 23 enters into pressure oil to be arranged on the working chamber of the hydraulic motor 2 of hydraulic power head rear end to drive drill bit 9 to do forward cutting rotation, regulates the second choke valve 32 can change the rotating speed of hydraulic motor 2; When propelling cylinder 15 creeps into the drill bit 9 the rotating effective cutting just having realized rock stratum that continues to move ahead, the reaction force while creeping into is offset by two hydraulic pressure support oil cylinders 13 of frame 10 rear ends.
When slide unit 11 forward travel distances surpass after 810mm, the first valve group 25 of handling integrated multipath valve 23 commutates to meta and makes hydraulic motor 2 stop motions, the hydraulic quick coupler 33 of pegging graft again on hydraulic gripper 3, the 4th valve group 28 commutations of handling integrated multipath valve 23 make hydraulic gripper 3 oil cylinder working chamber pressure oils discharge oil sump tank 19 through back oil road, now three uniform claws 7 of butterfly spring group 5 promotion slip spider 4 its inner periphery of compression extend radially out and hold drilling rod 8 tightly, the 3rd valve group 27 commutations of handling integrated multipath valve 23 make the unsteady duty of propelling cylinder 15 in two ends working chamber and back oil road communication, then the first valve group 25 commutations of handling integrated multipath valve 23 counter-rotate hydraulic motor 2, the external screw thread of main shaft 37 external parts of hydraulic power head is exited from the drilling rod 8 of being held tightly by hydraulic gripper 3, the 3rd valve group 27 commutations of handling again integrated multipath valve 23 make propelling cylinder 15 turn back to starting point with hydraulic power head, one end internal thread that newly adds same specification drilling rod 8 is screwed in the external screw thread of main shaft 37 external parts of hydraulic power head, the 3rd valve group 27 commutation of now handling integrated multipath valve 23 makes external screw thread that propelling cylinder 15 low speed proceed to drilling rod 8 and is held tightly the internal thread interface place of drilling rod 8 by hydraulic gripper 3, then the 3rd valve group 27 of handling integrated multipath valve 23 commutates propelling cylinder 15 to quick condition, the first valve group 25 commutations of handling integrated multipath valve 23 make hydraulic motor 2 low-speed runnings, this stylish external screw thread that adds drilling rod 8 is screwed into by hydraulic gripper 3 and holds tightly in the internal thread of drilling rod 8 and realized the firm docking between drilling rod 8, so far can continue the work of creeping into by aforementioned operation method again.Constantly add drilling rod 8 and just can within the scope of hydraulic power head allowable torque, reach the requirement of drilling depth; In whole boring procedure, water flap valve door must be opened, with guarantee drill bit 9 obtain effective cooling, lubricated and by the rock slag machining away outside the smooth tap of hole wall.
In the time will exiting drilling rod 8, hydraulic gripper 3 is in releasing orientation, the first valve group 25 commutations of handling integrated multipath valve 23 make hydraulic motor 2 drive drilling rod 8 to do forward running, handle the second valve group 26 of integrated multipath valve 23 and the commutation of the 3rd valve group 27 realizes Dual-pump flow-converging and makes propelling cylinder 15 be retracted into fast starting point simultaneously, the 3rd valve group 27 commutation of handling again integrated multipath valve 23 makes propelling cylinder 15 in the duty of floating, and the first valve group 25 of handling integrated multipath valve 23 commutates to meta and makes hydraulic motor 2 stop motions, the hydraulic quick coupler 33 of now pegging graft on hydraulic gripper 3, the 4th valve group 28 commutations of handling integrated multipath valve 23 make the oil cylinder working chamber pressure oil of hydraulic gripper 3 discharge oil sump tank 19 through back oil road, three uniform claws 7 of butterfly spring group 5 promotion slip spider 4 its inner periphery of compression stretch out holds drilling rod 8 tightly, the first valve group 25 commutations of handling integrated multipath valve 23 counter-rotate hydraulic motor 2, the main shaft 37 of hydraulic power head or the external screw thread of drilling rod 8 are exited from the drilling rod 8 of being held tightly by hydraulic gripper 3, manually use again spanner to unscrew other end screw thread and can unload next root drilling rod 8, second valve group 26 and the 3rd valve group 27 commutations of handling integrated multipath valve 23 make the first fast rear low speed of propelling cylinder 15 proceed to drilling rod 8 external screw threads and the internal thread interface place of being held tightly drilling rod 8 by hydraulic gripper 3, and the 3rd valve group 27 of handling integrated multipath valve 23 commutates propelling cylinder 15 to quick condition, the first valve group 25 commutations of handling integrated multipath valve 23 make hydraulic motor 2 low-speed runnings, external screw thread on the main shaft of hydraulic power head 37 is screwed into by hydraulic gripper 3 and holds tightly in the internal thread of drilling rod 8 and realized after the firm docking of drilling rod 8, handle oil cylinder working chamber that the 5th valve group 29 commutations of integrated multipath valve 23 make pressure oil enter hydraulic gripper 3 promote slip spider 4 compression butterfly spring groups 5 three uniform claws 7 of slip spider 4 inner peripherys are exited and drilling rod 8 between form larger gap, the first valve group 25 commutations of handling integrated multipath valve 23 make hydraulic motor 2 drive drilling rod 8 to do forward running, handle the second valve group 26 of integrated multipath valve 23 and the commutation of the 3rd valve group 27 realizes Dual-pump flow-converging and makes propelling cylinder 15 be retracted into fast starting point simultaneously, constantly the said process of repeated removal drilling rod 8 can complete the recovery of exiting of whole drilling rods 8 and drill bit 9.
When the first valve group 25 of integrated multipath valve 23 and second valve group 26 are during in off position, the front pump of duplex gear pump 17 is in unloading condition, makes fire-proof motor 18 in compared with running on the lower load; When the 3rd valve group 27 of integrated multipath valve 23, the 4th valve group 28, the 5th valve group 29 are during in off position, the rear pump of duplex gear pump 17, in unloading condition, makes fire-proof motor 18 in running on the lower load; When integrated multipath valve 23 integral body are during in off position, duplex gear pump 17, all in unloading condition, makes fire-proof motor 18 in slight load condition.
Claims (4)
1. a hydraulic locking rear support rig, comprise hydraulic power station (16), frame (10), be located at the guide rail (12) on described frame length direction, the propelling cylinder (15) that is located at the slide unit (11) in described guide rail rearward end and drives this slide unit to slide, be located at the hydraulic gripper (3) on described guide rail leading section, the drilling rod (8) and the drill bit (9) that are connected with described hydraulic gripper front end, be located at the unit head (1) on described slide unit, the hydraulic motor (2) being connected with described unit head rear end, the water being located on described unit head leading section is distinguished water inlet (36), the main shaft (37) that one end and described unit head front end are connected, the rear end of the other end of described main shaft and described hydraulic gripper (3) is connected, it is characterized in that: also comprise support cylinder (13), the rear end of the front end of this support cylinder (13) and described frame (10) near, the rear end of described support cylinder be located on the ground or crag on pedestal (38) near, described support cylinder (13), hydraulic gripper (3), propelling cylinder (15) is connected with described hydraulic power station (16) by oil pipe respectively with hydraulic motor (2).
2. hydraulic locking rear support rig according to claim 1, it is characterized in that: described hydraulic power station (16) comprises Portable operation support (21), fire-proof motor (18), duplex gear pump (17) and fuel tank (19), the output shaft of described fire-proof motor (18) is connected with the driving gear shaft of the front pump of duplex gear pump (17);
Described Portable operation support (21) is provided with the first pressure meter (34), the second pressure meter (35), integrated multipath valve (23), first throttle valve (31) and the second choke valve (32);
Described integrated multipath valve (23) comprises inlet valve group (24), the first valve group (25), second valve group (26), the 3rd valve group (27), the 4th valve group (28), the 5th valve group (29) and converging valve group (30);
The oil-out of the front pump of described duplex gear pump (17) is connected with the oil-in of described inlet valve group (24) by high-pressure rubber pipe (20); The oil-out of the rear pump of described duplex gear pump (17) is connected with the oil-in of described converging valve group (30) by high-pressure rubber pipe (20); Two hydraulic fluid ports of described the first valve group (25) are connected with the two ends hydraulic fluid port of described hydraulic motor (2) by high-pressure rubber pipe (20), and two hydraulic fluid ports of the first valve group (25) are also connected with the two ends hydraulic fluid port of the second choke valve (32) by oil pipe (22); Two hydraulic fluid ports of described second valve group (26) are connected with the two ends hydraulic fluid port of first throttle valve (31) by oil pipe (22); Two hydraulic fluid ports of described the 3rd valve group (27) are connected with two chamber actuator ports of described propelling cylinder (15) by high-pressure rubber pipe (20); Two hydraulic fluid ports of described the 4th valve group (28) are connected with the two cavity oil mouth of described support cylinder (13) by high-pressure rubber pipe (20); Two hydraulic fluid ports of described the 5th valve group (29) are connected with the hydraulic fluid port of described hydraulic gripper (3) by high-pressure rubber pipe (20); The oil return opening of described inlet valve group (24), the first valve group (25), second valve group (26), the 3rd valve group (27), the 4th valve group (28), the 5th valve group (29) and converging valve group (30) is connected with the oil return opening of fuel tank (19) by high-pressure rubber pipe (20) respectively; Described the first pressure meter (34) is connected with the pressure interface of described inlet valve group (24) by pipeline; Described the second pressure meter (35) is connected with the in-line joint of described converging valve group (30) by pipeline.
3. hydraulic locking rear support rig according to claim 1 and 2, is characterized in that: the length direction in the front end edge frame (10) of frame (10) is connected with length adjustment bar (14).
4. hydraulic locking rear support rig according to claim 1 and 2, is characterized in that: in described the 4th valve group (28), be integrated with pilot-operated hydraulic lock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420206083.5U CN203796167U (en) | 2014-04-25 | 2014-04-25 | Hydraulic locking rear-support drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420206083.5U CN203796167U (en) | 2014-04-25 | 2014-04-25 | Hydraulic locking rear-support drilling machine |
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| Publication Number | Publication Date |
|---|---|
| CN203796167U true CN203796167U (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420206083.5U Expired - Lifetime CN203796167U (en) | 2014-04-25 | 2014-04-25 | Hydraulic locking rear-support drilling machine |
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| Country | Link |
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| CN (1) | CN203796167U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448430A (en) * | 2017-09-19 | 2017-12-08 | 锦州力特液压科技有限公司 | All-hydraulic tunnel drilling rig multiple directional control valve |
-
2014
- 2014-04-25 CN CN201420206083.5U patent/CN203796167U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448430A (en) * | 2017-09-19 | 2017-12-08 | 锦州力特液压科技有限公司 | All-hydraulic tunnel drilling rig multiple directional control valve |
| CN107448430B (en) * | 2017-09-19 | 2023-05-30 | 锦州力特液压科技有限公司 | All-hydraulic tunnel drilling machine multi-way reversing valve |
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