Summary of the invention
The present invention digs clearly existing problems and disadvantages for current coal-mine water-house coal mud, has invented a kind of novel coal mine useIntegrated high-efficiency conveyer for emptying warehouse.
The present invention adopts the following technical scheme:
A kind of coal mine integrated high-efficiency conveyer for emptying warehouse, comprising: conveyer for emptying warehouse by helix aggregating device, closed helical feeding apparatus,Chassis assembly, conveyer for emptying warehouse are mounted in the chassis assembly by helix aggregating device, closed helical feeding apparatus, the chassisAssembly uses rigidity track rail assembly, and the chassis assembly front end is equipped with excavation on closed helical feeding apparatus overhead supportWorking arm, excacation arm dig arm using miniature digging machine, and end is equipped with scraper box；
Hopper is installed on rear side of the chassis assembly, Double shaft stirring device is installed in the middle part of hopper, Double shaft stirring device includes: doubleAxis blender, screw conveyor, biaxial rneader outlet at bottom are connect with screw conveyor entrance, screw conveyor discharge port withThe connection of oblique plate plunger pump material sucking port.
According to coal mine integrated high-efficiency conveyer for emptying warehouse, the agitating shaft of the Double shaft stirring device passes through rolling bearing branchIt holds, is mounted on hopper both side plate, wherein a main shaft is connect biaxial rneader with stirring motor, and two main shafts pass through endGear engagement transmitting power, by chain drive and biaxial rneader, wherein a main shaft connects the spindle nose of screw conveyorIt connects.
Further, the stirring motor is connect by fluid pressure line with stirring oil pump, is equipped with hand on the fluid pressure lineDynamic reversal valve.
Further, the stirring motor uses IQJM21-0.89 type two-way hydraulic motor；It stirs oil pump and uses CBKL-G32/G25-A7 type duplex gear pump.
Further, the hopper upper opening is equipped with the double-edged fine-toothed comb for filtering bulk spoil.
Technical solution of the present invention has the following characteristics that
1. excacation arm: excavating 3.5 meters of height, excavate 4.5 meters of width, excavate 2 meters of distance, realization grabs function to taking off for coal slimeCan, it effectively increases coal slime and gathers materials width and loading efficiency；
2. efficient 20/10 concrete for mines delivery pump, 1. coal slime can long-distance sand transport, conveying distance is greater than 500 meters, and height is bigIn 50m.2. main fortune belt or other gateheads can be delivered directly to by pipeline；3. being equipped with 20 meters/root high-strength abrasion-proofSteel wire rubber tube quickly connects, can also be using underground coal mine 3-4 cuns of water supply air-supply pipelines；
3. using high-intensitive rigid track, low speed high torque hydraulic walking chassis, powerful.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
The present invention is as a kind of coal mine integrated high-efficiency conveyer for emptying warehouse, based on conventional coal slurry digger chassisIt improves, increases the Double shaft stirring device in excacation arm assembly, hopper and hopper.Conveyer for emptying warehouse is filled by helix aggregatingSet 1, closed helical feeding apparatus 13, oblique plate plunger pump 12 and crawler body assembly 9, excacation arm 11 forms.
It is a feature of the present invention that being more applicable for shaft sump using crawler body assembly 9 and digging clearly；In helix aggregatingExcacation arm is installed, realization grabs function to taking off for coal slime, effectively increases coal slime and gathers materials width and feeding effect above deviceRate；The outlet of spiral feeding is mounted below hopper, and hopper increase has Double shaft stirring device, will for the stirring by blenderCoal slime in hopper everywhere is concentrated to the suction inlet of concrete cylinder, so as to pumping system suction.
Rigidity track rail assembly crawler body assembly 9 uses low speed high torque hydraulic walking chassis, is mounted on conventional coal slimeOn clearing and digging machine chassis, there is powerful, easy to operate, convenient for moving in sump.
Excacation arm 11 can dig arm, the bracket being mounted on above conveyer for emptying warehouse material-gathering device using existing miniature digging machineOn, it is made of scraper box, working arm and hydraulic cylinder.The electric energy inputted is converted to rotating machinery by flame-proof electric motor by powerCan, the rotary motion of motor output and power are passed to by hydraulic oil pump by shaft coupling, hydraulic pump again changes mechanical energyDigging arm is driven for the pressure energy of oil liquid, left and right is realized by hydraulic operation handle control at driver's seat, is moved up and down, realization pairFunction is grabbed in taking off for coal slime, is effectively increased coal slime and is gathered materials width and loading efficiency, in turn avoid sediment deposit collapse suddenly it is outer gush, protectProtect the safety of staff.
Double shaft stirring device is located in the hopper 8 of tail portion, and agitating shaft is supported on hopper both side plate by rolling bearing.ItsFunction is the stirring by blender, and the coal slime in hopper everywhere is concentrated to the suction inlet of two concrete cylinders, is to pumpSystem suction.The biaxial rneader is common twin shaft turbine stirrer.(stirring motor is not drawn into) as shown in Figure 5, wherein oneRoot main shaft right end is connect with stirring motor, and two main shafts transmit power by the gear engagement of right end end, screw conveyorBy chain drive, wherein a main shaft is connect with biaxial rneader for main shaft left end end.
Biaxial rneader is mainly made of following element.
1 stirring oil pump: hydraulic oil is conveyed for stirring system.Using CBKL-G32/G25-A7 type duplex gear pump, oil suctionMouthful it is connected with pumping main oil pump and connecing, is that join gear pump be stirring system fuel feeding for that of 32ml/r with wherein discharge capacity.
2 oil absorption filters: oil absorption filter is shared with pumping system main oil pump.
3 hand-operated direction valves: control oil liquid flow direction controls the direction of rotation of stirring motor, 3-position 4-way, middle position MType function manually controls, steel ball positioning；It is installed with overflow valve in its valve body, overload protective function is risen to stirring system, sets up pressurePower is 12MPa.
4 stirring motors: an IQJM21-0.89 type two-way hydraulic motor, for driving rabbling mechanism.
It is as follows to stir the hydraulic system course of work: by oil absorption filter oil suction, pressure oil is handled to be moved duplex gear pumpTo valve, into two-way hydraulic motor, that is, stirring motor.For hand-operated direction valve control crank at middle position, pressure oil directly flows back to oilCase, hydraulic motor do not turn.When pumping, pull handle, reversal valve work, pressure oil enters hydraulic motor, motor can be realized just,Reversion.Biaxial rneader work, constantly squeezes into screw conveyor for coal slime.Screw conveyor again exports to the right coal slime.When beingWhen system hypertonia (meeting or exceeding 12MPa), overflow valve opens overflow, and limitation system pressure continues to increase.
Biaxial rneader outlet at bottom is connect with screw conveyor entrance, and screw conveyor discharge port and oblique plate plunger pump are inhaledMaterial mouth connection.By the stirring of blender, the coal slime in hopper everywhere is concentrated to screw conveyor, so as to pumping system suctionMaterial.Two stirring main shaft impeller rotations, sludge are stirred downwards, screw conveyor again exports to the right coal slime, by sludgeGet into oblique plate plunger pump.
Coal slurry digger chassis, wherein the electric energy inputted is converted to rotating mechanical energy by flame-proof electric motor 4, passes through shaft couplingThe rotary motion of motor output and power are passed to hydraulic oil pump by device, and mechanical energy is changed into the pressure of oil liquid by hydraulic pump againPower can be provided for whole system.
Crawler body in sump for moving, and helix aggregating device 1 gathers materials using enclosing coil blade is two-way, by sumpCoal slime is collected to conveyer for emptying warehouse, and two side guard plates are detachable flanged joint, can be widened according to sump tunnel length.It is closedHelical feeding apparatus 13 mentions the coal slime spiral that material-gathering device is collected in material to the hopper at conveyer for emptying warehouse rear.Comb is used above hopperSon filtering bulk spoil, prevents damage mixing plant.Double shaft stirring device is placed in hopper, for stirring coal slime, is convenient for swash platePlunger pump pressurized delivered, oblique plate plunger pump put the efficient delivery pump of the full hydraulic control of valve twin-tub using S, and delivery pump main body is installed on rigidity liquidIt presses on traveling crawler chassis, by two pumping master cylinders, sink, reversing mechanism, two concrete cylinders, two concrete pistons, SThe compositions such as pipe valve, pendulum handle, two oscillating oil cylinders.Its act on be by the alternate reciprocating motions of two concrete cylinders and with S pipe valveSwing matches, and by the coal slime sucking concrete cylinder in hopper and pushes out.
Spiral digging device 1 gathers materials using diameter is two-way greater than the integrally closed helical blade of 500mm, and vane thickness is greater than8mm, screw pitch 200mm~220mm, helical axis use Φ 89mm × δ 10mm45# seamless steel pipe, and revolving speed is greater than 70r/min, gathers materialsScrew fastening portion length is generally 1.4m, and two sides are connected with round spindle flange using arc backplate, generally lengthened respectively600mm can suitably widen according to span length.Material loading part uses efficient outer diameter 273mm, helical blade diameter 250mmClosed helical feeding apparatus 13 to hopper 8, various concentration material needs different revolutions speed of screw.Closed helical feeding apparatusVane thickness is greater than 8mm, screw pitch 180mm~200mm, and helical axis uses Φ 76mm × δ 8mm45# seamless steel pipe.
To improve loading efficiency, helix aggregating device 1 and closed helical feeding apparatus 13 are in longitudinal drop height type arrangementThe heart is divided into away from 210mm, driving: centralized driving -- and the helical axis that gathers materials is connected by secondary gearbox and closing feeding helical axis transmissionIt connects, the spline direct-connected driving of PM8-600 five-pointed star column motor.Helix aggregating device and closed helical feeding apparatus are using before rear axleCylinder form, support cylinder can realize helix aggregating device lifting work within the scope of 0~1m.
Crawler body assembly 9 uses existing crawler body assembly, is three muscle, 300 crawler belt, pitch 135mm, ground contact length1950mm, 22o >=climbing >=16o, platform overall width 1400mm, length 2300mm, paddle height >=600mm, and the road clearance >=250mm, double crossbeams are 150mm × 150mm × δ 10mmQ345.
Oblique plate plunger pump 12 be S put the efficient delivery pump of the full hydraulic control of valve twin-tub, material cylinder diameter 140mm, cylinder diameter 100mm,580~700mm of stroke, tilt cylinder are big 50mm cylinder, and it is total that delivery pump main body is installed on rigidity hydraulic moving crawler body crawler bodyCheng Shang, complete machine paddle height greater than 600mm, and pumping distance is greater than 500mm, and lift is up to nearly hundred meters.
Hydraulic operating system 2 include 4, KBA120 vacuum electromagnetic starters of a YBK3-4-55Kw flame-proof electric motor,One 3PBZA mine explosion-suppression control button and two flame-proof mine locomotive illuminating lamps.To guarantee hydraulic system reliably working, it isFuel tank of uniting is the double fuel tanks 7 of major-minor, and high-efficiency water cooling, dischargeable capacity >=300mm, fluid pressure line is mining 2~4 layers of braided steel wire rubberOil pipe, pressure resistance >=36MPa.