CN103572788B - Wheeled drive hoeing machine - Google Patents
Wheeled drive hoeing machine Download PDFInfo
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- CN103572788B CN103572788B CN201310369154.3A CN201310369154A CN103572788B CN 103572788 B CN103572788 B CN 103572788B CN 201310369154 A CN201310369154 A CN 201310369154A CN 103572788 B CN103572788 B CN 103572788B
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Abstract
A kind of wheeled drive hoeing machine, relates to mining and engineering machinery field.Comprise vehicle chassis, excavate feed mechanism, carry shedding mechanism, electrical control system, hydraulic system and operating mechanism thereof.The present invention adopts brand new to design, and adopting external power supply or carrying diesel engine is power, adopts electric power, hydraulic pressure and machine driving, takes off material, conveying, entrucking to realize excavating continuously.Compact conformation, rationally, failure rate is low, easy maintenance, flexibly mobile, safe and reliable, eliminate potential safety hazard, effectively can reduce personnel casualty accidents, have and can walk voluntarily, load steadily, operate the features such as nimble, continuous high-efficient.Adapt to narrow, hole lowland surface construction condition.Mainly be applicable to the construction of tunnel medium stone material such as colliery, phosphorus ore, iron ore, copper mine, exploitation of gold deposit hoeing operation and railway, highway, water conservancy, national defence and gather entrucking, also can be used for outdoor fragmentary material car loading operation.
Description
Technical field
The present invention relates to technical field of engineering machinery, specifically a kind of wheeled drive hoeing machine being applicable to mining and engineering construction.
Background technology
Existing wheeled drive hoeing machine, vehicle chassis mainly adopts that propons is fixed, the channel-section steel of Rear-axle suspension, rear-axle steering welding chassis, wheel drive walking structure, and complete machine relies on hydraulic braking, without service braking device; Electric drum driving after conveying shedding mechanism adopts, not collapsible (or flexible) carriage structure, the tensioning of belt conveyor rigidity is without buffering; Excavate feed mechanism and adopt upper and lower beam type, the upper and lower hung type rotary structure in front side; Hydraulic system and operating mechanism thereof be not containing hydraulic buffering valve.The wheeled drive hoeing machine design of above structure types is unreasonable, component badly broken, and equipment failure rate is high, and machine life is short, and potential safety hazard is many, mainly there is following defect:
1, because producing very large vertical direction active force when excavating feed mechanism work, easily causing excavating slew gear gyroaxis bearing and loosen and break.
2, hydraulic system and operating mechanism thereof are because lacking hydraulic buffering valve, and impact force is comparatively large, carry out advancing, retreat, anxious when stopping operating in vehicle to run process, easily cause CD-ROM drive motor, forward and backward vehicle bridge to damage.
3, because of without service braking device, there is potential safety hazard in vehicle in the process of walking.
4, the carriage structure of not collapsible (or flexible) is adopted, because machine shape size is comparatively large, transition inconvenience of constructing in narrow.
5, the tensioning of belt conveyor rigidity is without buffering, drives electric drum that vexed car burning damage accident easily occurs.
6, rear-axle steering mechanism is adopted to be not easy to entrucking discharging contraposition.
7, adopt Rear-axle suspension chassis structure, easily vehicle roll occurs in vehicle to run and the hoeing course of work, there is potential safety hazard.
8, existing vehicle bridge hitch vehicle bridge stress point is on axle center tooth incrustation, does not meet vehicle bridge instructions for use, easily causes vehicle bridge broken.
9, hollow part, existing channel-section steel welded type chassis size is less, is not easy to the layout of machinery and hydraulic components in chassis.
Summary of the invention
For overcoming the deficiencies in the prior art, goal of the invention of the present invention is to provide a kind of wheeled drive hoeing machine, to reduce equipment failure rate, improves machine life and safety and reliability.
For achieving the above object, the present invention includes vehicle chassis, excavate feed mechanism, carry shedding mechanism, electrical control system, hydraulic system and operating mechanism thereof, it is characterized in that:
Described vehicle chassis is primarily of vehicle chassis frame, propons, back axle, front overhang frame, engage a gear bar, electronic box, fuel tank, universal coupling, priority allocation valve, travel driving motor, hydraulic buffering valve, gearbox, return filter, radiator, gear pump, running motor, diesel engine, clutch, location-plate, U bolt, tire, spring protective beam composition; Propons is frame suspended structure, and propons left and right wheels can fluctuate, and propons and back axle are welded with the location-plate preventing vehicle bridge circumferential deflection and axial float; The rear and front end of front overhang frame hangs on the suspension fine strain of millet of vehicle chassis frame by hinge, and the left and right sides of front overhang frame is fixed by U bolt and propons location-plate and located; Between the steering linkage of propons and front overhang frame, steering cylinder is installed; Back axle is connected and fixed by location-plate and U bolt and vehicle chassis frame rear portion; Propons, back axle are equipped with tire; Vehicle chassis adopts four-wheel drive; The rear portion of vehicle chassis frame installs spring protective beam additional, adopts clutch to connect between diesel engine with travel driving motor.
Described excavation feed mechanism primarily of bucket, outreach extension bar, internal gussets, bucket cylinder, forearm, large arm, oil cylinder of small arm, big arm cylinder, revolving body, angling cylinder, portal frame, steering wheel, multiple directional control valve, department control platform, brake pedal, master cylinder, brake piping, hydraulic drum control valve composition; Excavation feed mechanism is clamped by portal frame both sides and is fixed on carriage, and portal frame is crossbeam and plate-side plate welding structure; The upper and lower part of revolving body is clipped on the crossbeam of portal frame; Revolving body is equipped with large arm, large arm one end and revolving body hinged, the other end and forearm one end hinged; the forearm other end and bucket hinged; between forearm and bucket through internal gussets by outreaching extension bar, bucket cylinder is hinged; cut with scissors between revolving body and large arm and fill big arm cylinder, between large arm and forearm hinge dress oil cylinder of small arm, revolving body both sides and portal frame both sides are cut with scissors and are filled angling cylinder; Department's control platform mounts on the left of portal frame, and multiple directional control valve is installed on department's control platform top, and department's control platform bottom is equipped with the brake gear be made up of brake pedal, master cylinder, brake piping and hub brake.
Described conveying shedding mechanism is primarily of follower rollers, the shovel mouth that gathers materials, striker plate, carriage, carriage hoist cylinder, elastic scraper device, driving hydraulic drum, flap wheel, collapsible adjusting bracket, riding wheel apparatus, conveyer belt, folding stand, carriage folding ram, belt flexibility tensioning apparatus composition; The front portion of carriage is hinged by both sides hinge and vehicle chassis frame, the rear end of carriage pass through both sides carriage hoist cylinder and vehicle chassis frame hinged; The shovel mouth that gathers materials is installed on carriage foremost; The front portion of conveying shedding mechanism is follower rollers, and rear portion, for driving hydraulic drum, drives hydraulic drum to adopt hydraulic pressure or electric drive; Conveying shedding mechanism is foldable structure, folding conveying shedding mechanism is at the rear portion of carriage configuration folding stand and collapsible adjusting bracket, collapsible adjusting bracket is driven by carriage folding ram, folding stand and pass through hinge between collapsible adjusting bracket and carriage folding ram; Belt flexibility tensioning apparatus is installed between carriage and folding stand; Elastic scraper device is placed in below conveyer belt, is arranged on the bottom of carriage.
Described electrical control system comprises major loop, control loop and lighting loop, primarily of electric control box, circuit control panel, isolation reversing switch, fuse, control transformer, mechanical self-latching push switch, contactor, electric bell, illuminating lamp, press button, emergency stop switch, resistance-capacitance device, travel driving motor, electronic protector, wiring terminal, connecting conducting wire composition; Isolation reversing switch, fuse, control transformer, contactor, resistance-capacitance device, electronic protector circuit control panel be equipped with; Electric control box passes through electronic box support installing on carriage or vehicle chassis.
Arrange elastic rubber ring between described electric control box and electronic box support, electric control box is explosion-proof type electric control box, and illuminating lamp is Explosionproof light, and travel driving motor is explosion-proof motor; Press button, emergency stop switch are shifted in the guard shield of department's control platform.
Described hydraulic system and operating mechanism thereof form primarily of fuel tank, priority allocation valve, hydraulic buffering valve, return filter, radiator, gear pump, running motor, bucket cylinder, oil cylinder of small arm, big arm cylinder, angling cylinder, multiple directional control valve, hydraulic drum control valve, hoist cylinder, folding ram, steering cylinder, hydraulic steering gear, conveying motor, air filter, content gauge, oil absorption filter, choke valve and fluid pressure line; Multiple directional control valve, hydraulic drum control valve are installed on department's control platform.
Described vehicle chassis is that crawler type double motor drives vehicle chassis.
Described conveying shedding mechanism is telescopic conveying shedding mechanism, and telescopic conveying shedding mechanism is at the rear portion of carriage configuration telescopic movable frame and adjusting bracket.
The present invention adopts brand new to design, integrated vehicle chassis, excavate feed mechanism, conveying shedding mechanism, electrical control system, hydraulic system and operating mechanism thereof five major part in one, adopting external power supply or carrying diesel engine is power, adopt electric power, hydraulic pressure and machine driving, take off material, conveying, entrucking to realize excavating continuously.Compact conformation, rationally, failure rate is low, easy maintenance, flexibly mobile, safe and reliable, eliminate potential safety hazard, effectively can reduce personnel casualty accidents, have and can walk voluntarily, load steadily, operate the features such as nimble, continuous high-efficient.Adapt to narrow, hole lowland surface construction condition.Mainly be applicable to the construction of tunnel medium stone material such as colliery, phosphorus ore, iron ore, copper mine, exploitation of gold deposit hoeing operation and railway, highway, water conservancy, national defence and gather entrucking, also can be used for outdoor fragmentary material car loading operation.
Accompanying drawing explanation
Fig. 1 is structure diagram of the present invention.
Fig. 2 is the structure diagram of the vehicle chassis of Fig. 1.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the structure diagram of the excavation feed mechanism of Fig. 1.
Fig. 5 is the structure diagram of the conveying shedding mechanism of Fig. 1.
Fig. 6 is electrical control system sketch of the present invention.
Fig. 7 is hydraulic system of the present invention and operating mechanism sketch thereof.
Detailed description of the invention
As shown in Figure 1, the integrated vehicle chassis 1 of the present invention, excavation feed mechanism 2, conveying shedding mechanism 3, electrical control system 4, hydraulic system and operating mechanism 5 thereof.Using external power supply or carry diesel engine as power source drive motors, adopt electric power, hydraulic pressure and machine driving, with vehicle form, operating mechanism and walking mechanism integrally combined, composition can the hoeing of automatic moving mechanical, realize complete machine and walk, turn to, brake.Excavate feed mechanism and there is the functions such as revolution, excavation, hoeing material loading; Conveying shedding mechanism has shoveling, gathers materials, material feeding, conveying, discharging, lifting, the function such as collapsible (or flexible).
As shown in Figure 2 and Figure 3, vehicle chassis is common or solid primarily of vehicle chassis frame 7, propons 8, back axle 9, front overhang frame 10, engage a gear bar 11, electronic box 12, fuel tank 13, universal coupling 14, priority allocation valve 15, travel driving motor 16, hydraulic buffering valve 17, gearbox 18, return filter 19, radiator 20, gear pump 21, running motor 22, diesel engine 23, clutch 24, location-plate 25, U bolt 26, tire 27(), spring protective beam 28 forms; Vehicle chassis frame 7 is frame steel plate and hollow beam welded construction; Propons 8 is frame suspended structure, and propons left and right wheels can fluctuate, to adapt to ground convex-concave change.Propons 8 and back axle 9 are welded with the location-plate 25 preventing vehicle bridge circumferential deflection and axial float; The rear and front end of front overhang frame 10 hangs on the suspension fine strain of millet of vehicle chassis frame 7 by hinge, and the left and right sides of front overhang frame 10 is fixed by U bolt 26 and propons location-plate 25 and located; Between the steering linkage of propons 8 and front overhang frame 10, steering cylinder 94 is installed; Back axle 9 is connected and fixed with vehicle chassis frame 7 rear portion by location-plate 25 and U bolt 26; Adopt the chassis of propons suspended structure, efficiently solve in vehicle to run and the hoeing course of work and vehicle roll, rollover defect easily occur, simultaneously due to propons carrying stress point sidesway, force-bearing situation improves, and effectively prevents the generation of vehicle bridge and tooth bag breakage event thereof; Propons 8, back axle 9 are equipped with common or solid tyre 27; Vehicle chassis 1 adopts four-wheel drive; The rear portion of vehicle chassis frame 7 installs spring protective beam 28 additional, effectively can slow down impact during haulage vehicle contraposition, prevents drive hoeing machine and haulage vehicle collsion damage; Diesel engine 23 adopts clutch 24 to replace shaft coupling to connect with connecting between motor, realizes diesel engine and automatically connects zero load electricity and start, be conducive to improving working conditions, reduce labor intensity.Described vehicle chassis 1 also can adopt crawler type double motor to drive vehicle chassis.
If when having external power supply, switch on power, travel driving motor 16 works, and driving gear pump 21 works and starts Hydraulic Power Transmission System simultaneously; Hydraulic Power Transmission System drives running motor 22 to work, then drives forward and backward vehicle bridge tooth bag by transfer gear box 18 and universal coupling 14, and through machine driving, gearbox speed change, drives vehicle wheel rotation, have walking, turn to, the function such as brake.During without external power supply, start and carry diesel engine 23, clutch 24 rotates in conjunction with rear drive travel driving motor 16, and driving gear pump 21 works simultaneously, starts Hydraulic Power Transmission System.
As shown in Figure 4, excavate feed mechanism primarily of bucket 31, outreach extension bar 32, internal gussets 33, bucket cylinder 34, forearm 35, large arm 36, oil cylinder of small arm 37, big arm cylinder 38, revolving body 39, angling cylinder 40, portal frame 41, steering wheel 42, multiple directional control valve 43, department's control platform 44, brake pedal 45, master cylinder 46, brake piping 47, hydraulic drum control valve 48 form, excavation feed mechanism 2 is clamped by portal frame 41 both sides and is fixed on carriage, portal frame 41 is crossbeam and plate-side plate welding structure, adopt steel pipe to connect between the upper and lower crossbeam on portal frame 41 top to reinforce, be used as the revolving bed of revolving body 39 simultaneously, portal frame 41 bottom hollow, is convenient to convey materials and passes through, the upper and lower part of revolving body 39 is clipped on the crossbeam of portal frame 41, slew gear adopts thrust bearing and sliding bearing duplex bearing form, upper and lower clamp-mounting type slew gear is rational in infrastructure, the gyroaxis bearing that can effectively prevent excavation construction from causing loosens and breaks and slew gear damage, greatly improve the drive hoeing machine life-span, reduce maintenance of equipment, large arm 36 revolving body 39 is equipped with, large arm 36 one end and revolving body 39 hinged, the other end and forearm 35 one end hinged, forearm 35 other end and bucket 34 hinged, between forearm 35 and bucket 34 through internal gussets 33 by outreaching extension bar 32, bucket cylinder 34 is hinged, cut with scissors between revolving body 39 and large arm 36 and fill big arm cylinder 38, cut with scissors between large arm 36 and forearm 35 and fill oil cylinder of small arm 37, revolving body 39 both sides and portal frame 41 both sides are cut with scissors and are filled angling cylinder 40, handle angling cylinder 40, revolving body 39 can be driven to drive and to excavate feed mechanism by the revolving bed center steering of gyroaxis realization around portal frame 41, department's control platform 44 mounts on the left of portal frame 41, multiple directional control valve 43 is installed on department's control platform 44 top, the bottom of department's control platform 44 is equipped with the brake gear be made up of brake pedal 45, master cylinder 46, brake piping 47 and hub brake, realize service brake, install brake gear additional, implement four wheel brakes, solve the design defect of existing Cinder Machine without service brake, eliminate traffic safety hidden danger.
Excavate the coordination of feed mechanism by angling cylinder 40, big arm cylinder 38, oil cylinder of small arm 37, bucket cylinder 34, bucket is run with certain track, realizes revolution, excavation, hoeing, material loading function.
As shown in Figure 5, carry shedding mechanism 3 primarily of follower rollers 50, the shovel mouth 51 that gathers materials, striker plate 52, carriage 53, carriage hoist cylinder 54, elastic scraper device 55, drive hydraulic drum 56, flap wheel 57, collapsible adjusting bracket 58, riding wheel apparatus 59, conveyer belt 60, folding stand 61, carriage folding ram 62, belt flexibility tensioning apparatus 63 to form, the front portion of carriage 53 is hinged by both sides hinge and vehicle chassis frame, and the rear end of carriage 53 is hinged by both sides carriage hoist cylinder 54 and vehicle chassis frame, can control conveying shedding mechanism rear portion rise, land by driving hoist cylinder 54, the shovel mouth 51 that gathers materials is installed on carriage 53 foremost, the front portion of conveying shedding mechanism is follower rollers 50, and rear portion, for driving hydraulic drum 56, drives hydraulic drum 56 to adopt hydraulic pressure or electric drive, drives by driving hydraulic drum 56 built-in (or external) conveying motor (or built-in motor), conveying shedding mechanism can be foldable structure, folding conveying shedding mechanism is at the rear portion of carriage 53 configuration folding stand 61 and collapsible adjusting bracket 58, collapsible adjusting bracket 58 is driven by carriage folding ram 62, folding stand 61 and pass through hinge between collapsible adjusting bracket 58 and carriage folding ram 62, folding conveying shedding mechanism also can be telescopic conveying shedding mechanism, telescopic conveying shedding mechanism is at the rear portion of carriage 53 configuration telescopic movable frame and adjusting bracket, adopt collapsible (or flexible) carriage, whole length can be shortened, be convenient to transition in narrow, adjustable shelf length can be matched according to transport wagon box, to adapt to hopper entrucking needs, belt flexibility tensioning apparatus 63 is installed between carriage 53 and folding stand 61, elastic scraper device 55 is placed in below conveyer belt 60, be arranged on the bottom of carriage 53, by equipped belt flexibility tensioning apparatus 63, elastic scraper device 55, the rigidity tensioning of conveyer belt 60 become elastic tension, the wearing and tearing of conveyer belt 60 can be reduced, greatly improve the application life of conveyer belt 60.
Conveying shedding mechanism drives carriage 53 to be elevated by carriage hoist cylinder 54, by driving the conveying motor (or motor) of hydraulic drum 56 to drive conveying shedding mechanism work, realize shoveling, gather materials, material feeding, conveying, discharging, collapsible (or flexible), the function such as lifting.
As shown in Figure 6, electrical control system comprises major loop, control loop and lighting loop, primarily of electric control box 75, circuit control panel 76, isolation reversing switch 77, fuse 78, control transformer 79, mechanical self-latching push switch 80, contactor 81, electric bell 82, illuminating lamp 83, press button 84, emergency stop switch 85, resistance-capacitance device 86, travel driving motor 16, electronic protector 88, wiring terminal, connecting conducting wire composition; Isolation reversing switch 77, fuse 78, control transformer 79, contactor 81, resistance-capacitance device 86, electronic protector 88 circuit control panel 76 be equipped with; Electric control box 75 passes through electronic box support installing on carriage 53 or vehicle chassis frame 7.Between described electric control box 75 and electronic box support, elastic rubber ring is set, effectively can slows down drive hoeing machine walking and construction vibrations, greatly reduce electrical equipment malfunction; Electric control box 75 is explosion-proof type electric control box, and the illuminating lamp 83 with protective cover is flame-proof type mine lamp, and travel driving motor 16 is explosion-proof motor.Illuminating lamp 83 installs protective cover additional, and press button 84, emergency stop switch 85 are shifted in department's control platform guard shield, effectively prevents from rainwater from drenching dropping with material to smash switch and causes electric short circuit, open circuit fault.
Main circuit voltage of the present invention is 380/660V, control and lighting loop voltage are 36/24V, and when carrying shedding mechanism to adopt electric drum, electric control box 75 is two major loops, when carrying shedding mechanism to adopt hydraulic drum, electric control box 75 single major loops of need.Electrical control system has control travel driving motor, the starting of electrically driven (operated) head roll, stopping, rotating and overload, disconnected phase, short circuit, earth leakage search/lockout, decompression and overvoltage and absorbs defencive function.
The damping of elastic rubber ring pad is set between electric control box 75 of the present invention and electronic box support, effectively slows down drive hoeing machine walking and construction vibrations, greatly reduce electrical equipment malfunction.Illuminating lamp installs protective cover additional, opens, stops press button and be shifted in console guard shield, effectively prevents from rainwater from drenching dropping with material to smash switch and causes electric short circuit, open circuit fault.
As shown in Figure 7, hydraulic system and operating mechanism thereof are primarily of fuel tank 13, priority allocation valve 15, hydraulic buffering valve 17, return filter 19, radiator 20, gear pump 21, running motor 22, bucket cylinder 34, oil cylinder of small arm 37, big arm cylinder 38, angling cylinder 40, multiple directional control valve 43, hydraulic drum control valve 48, hoist cylinder 54, folding ram 62, steering cylinder 94, hydraulic steering gear 95, conveying motor 96, air filter 90, content gauge 91, oil absorption filter 92, choke valve 93 and fluid pressure line composition; Multiple directional control valve 43, hydraulic drum control valve 48 are installed on department's control platform.
The present invention is by steering dish hydraulic control steering gear 95, the respective operations bar handling six multiple directional control valves 43, hydraulic drum control valve 48, the action of manipulation hydraulic actuator oil cylinder of small arm 37, big arm cylinder 38, angling cylinder 40, running motor 22, hoist cylinder 54, bucket cylinder 34, steering cylinder 94, conveying motor 96 etc., and then realize vehicle chassis and walk, turn to, brake; Excavate the shoveling of feed mechanism shovel mouth to gather materials, excavate material loading, revolution, expansion, gathering; The lifting of conveying shedding mechanism, folding (stretching), conveying, discharging; At the oil buffer 17 that running motor 22 two ends are installed in parallel, make hydraulic system become flexible hydraulic system, to vehicle chassis advance and retreat, whereabouts, turn to and excavate material loading, action such as conveying discharging etc. has soft, buffering, reduce impact function.Hydraulic Elements and pipeline adopt conical surface seal to connect, and effectively prevent hydraulic system leakage.
Operating procedure of the present invention:
1, start preparation: connect three phase mains, close isolation reversing switch 77, and electric control box 75 control transformer 79 works, and control line rood electricity, power supply indicator is bright, complete machine place holding state.
2, complete machine starts: press the green button switch 84, contactor 81 adhesive of travel driving motor 16 circuit, and main circuit is connected, and starts vehicle to run drive motors 16.Travel driving motor 16 operate driven gear pump 21 pump oil, hydraulic oil pumps through oil absorption filter 93, gear pump 21, through priority allocation valve 15 to hydraulic steering gear 95 and (or) running motor 22 and (or) six multiple directional control valves 43, handle the corresponding control stick of six multiple directional control valves 43, drive executive component running motor 22, oil buffer 17, each operating cylinder, carry motor 96 to work, oil return flows back to fuel tank through return filter 19, radiator 20.
3, walk and turn to: promoting six multiple directional control valves 43 forward or backward and to walk valve block control crank, walking valve block just (or) oppositely connect, hydraulic oil drive running motor 22 just (or) reversion, by machine driven systems such as gearboxes, drive forward and backward bridge vehicle wheel rotation, realize complete machine traveling forward and back; During walking valve block control crank place's interposition, walking valve block place cut-off state, vehicle stops.Steering dish, hydraulic oil preferentially enters hydraulic steering gear 95 through priority allocation valve 15, drives steering cylinder 94 action, controls Vehicular turn.
4, lifting and shoveling: promote six multiple directional control valve 43 conveying mechanism descending valve plate control cranks forward or backward, conveying mechanism descending valve plate just (or) oppositely connect, hydraulic oil drives hoist cylinder 54 action, realizes conveying mechanism lifting.When hoist cylinder 54 stretches out, conveying mechanism rear portion is raised, and shovel mouth falls, and is convenient to shoveling and entrucking; Hoist cylinder 54 all stretches out, and conveying mechanism rear portion is lifted to the highest, and shovel mouth lands, and wheelie lifts simultaneously; When hoist cylinder 54 is retracted, conveying mechanism rear portion falls, and shovel mouth is raised and is convenient to vehicle to run.
5, carry entrucking: start conveying unload material control button, the motor of the driving hydraulic drum 56 that starter motor drives, the work of conveying shedding mechanism, starts conveying, discharging and entrucking.Conveying discharging starting button is three push switch, comprises starting, reversion, position of rest; When carrying shedding mechanism configuration hydraulic drum, it is then the control stick promoting to carry motor control valve 43 forward or backward, conveying motor 96 operates, and driving hydraulic drum 56 drives the work of conveying shedding mechanism, and conveying motor 96 control valve also divides forward, oppositely connection and cut-off three working positions.
6, material loading is excavated: handle four control sticks that six multiple directional control valve 43 big arm cylinders, oil cylinder of small arm, bucket cylinder, angling cylinder etc. control valve block respectively, then handle big arm cylinder, oil cylinder of small arm, bucket cylinder, angling cylinder action respectively.The good large arm of hormany operating, forearm, bucket action, control bucket running orbit well, thus complete revolution and excavate feeding process.Handle angling cylinder action, promote revolving body and rotate, drive digging mechanism revolution.
7, carriage folds: the control valve control stick handling folding ram, drives folding ram 62, completes carriage and folds and restore.
8, vehicle speed variation: gearbox 18 has high and low, empty three gears, handles engage a gear bar, conversion gearbox-gear and car speed.Front gear is low or first gear, and middle gear is neutral gear, and rear gear is top gear.High gear is used for empty wagons walking, and low-grade for drive hoeing machine work, neutral gear is used for trailer traction.
9, service brake: step on brake pedal 45, master cylinder 46 valve rod compresses, and to brake fluid pressurization, drives hub for vehicle wheel inside brake cylinder working, forces braking horseshoe to compress wheel hub and realizes service brake.
10, shut down: press red stop button 84 or suddenly stop knob 85, control circuit dead electricity, power supply indicator goes out, complete machine place stopped status, but electric control box control transformer still has electricity.Disjunction isolation reversing switch 77, pulls up three-phase power socket, cutting electromechanical source.
11, without electricity operation: during without external power source, start diesel engine 23 and drive travel driving motor 16 and gear pump 21 to work.Now motor is used as generator, provides power supply to complete machine.
12, electrical control system has control drive motors, electric drum electric motor starting, stopping, rotating and overload, disconnected phase, short circuit, earth leakage search/lockout, decompression and overvoltage absorption defencive function.
Claims (3)
1. a wheeled drive hoeing machine, comprises vehicle chassis (1), excavates feed mechanism (2), carries shedding mechanism (3), electrical control system (4), hydraulic system and operating mechanism (5) thereof, it is characterized in that:
Described vehicle chassis (1) is primarily of vehicle chassis frame (7), propons (8), back axle (9), front overhang frame (10), engage a gear bar (11), electronic box (12), fuel tank (13), universal coupling (14), priority allocation valve (15), travel driving motor (16), hydraulic buffering valve (17), gearbox (18), return filter (19), radiator (20), gear pump (21), running motor (22), diesel engine (23), clutch (24), location-plate (25), U bolt (26), tire (27), spring protective beam (28) forms, vehicle chassis frame (7) is frame steel plate and hollow beam welded construction, propons (8) is frame suspended structure, and the left and right wheels of propons (8) can fluctuate, and propons (8) and back axle (9) are welded with the location-plate (25) preventing vehicle bridge circumferential deflection and axial float, the rear and front end of front overhang frame (10) is hung on by hinge on the suspension fine strain of millet of vehicle chassis frame (7), and the left and right sides of front overhang frame (10) is fixed by U bolt (26) and propons location-plate (25) and located, between the steering linkage of propons (8) and front overhang frame (10), steering cylinder (94) is installed, back axle (9) is connected and fixed with vehicle chassis frame (7) rear portion by location-plate (25) and U bolt (26), propons (8), back axle (9) are equipped with tire (27), vehicle chassis (1) adopts four-wheel drive, the rear portion of vehicle chassis frame (7) installs spring protective beam (28) additional, adopts clutch (24) to connect between diesel engine (23) with travel driving motor (16),
Described excavation feed mechanism (2) is primarily of bucket (31), outreach extension bar (32), internal gussets (33), bucket cylinder (34), forearm (35), large arm (36), oil cylinder of small arm (37), big arm cylinder (38), revolving body (39), angling cylinder (40), portal frame (41), steering wheel (42), multiple directional control valve (43), department's control platform (44), brake pedal (45), master cylinder (46), brake piping (47), hydraulic drum control valve (48) forms, excavation feed mechanism (2) is clamped by portal frame (41) both sides is fixed on carriage (53), and portal frame (41) is crossbeam and plate-side plate welding structure, the upper and lower part of revolving body (39) is clipped on the crossbeam of portal frame (41), large arm (36) revolving body (39) is equipped with, large arm (36) one end and revolving body (39) hinged, the other end and forearm (35) one end hinged, forearm (35) other end and bucket (31) hinged, between forearm (35) and bucket (31) through internal gussets (33) by outreaching extension bar (32), bucket cylinder (34) is hinged, cut with scissors between revolving body (39) and large arm (36) and fill big arm cylinder (38), cut with scissors between large arm (36) and forearm (35) and fill oil cylinder of small arm (37), revolving body (39) both sides and portal frame (41) both sides are cut with scissors and are filled angling cylinder (40), department's control platform (44) mounts in portal frame (41) left side, multiple directional control valve (43) is installed on department's control platform (44) top, the equipped brake gear be made up of brake pedal (45), master cylinder (46), brake piping (47) and hub brake in department's control platform (44) bottom,
Described conveying shedding mechanism (3) is primarily of follower rollers (50), shovel mouth (51) that gathers materials, striker plate (52), carriage (53), carriage hoist cylinder (54), elastic scraper device (55), driving hydraulic drum (56), flap wheel (57), collapsible adjusting bracket (58), riding wheel apparatus (59), conveyer belt (60), folding stand (61), carriage folding ram (62), belt flexibility tensioning apparatus (63) composition; The front portion of carriage (53) is hinged by both sides hinge and vehicle chassis frame (7), the rear end of carriage (53) by both sides carriage hoist cylinder (54) and vehicle chassis frame (7) hinged; Shovel mouth (51) that gathers materials is installed on carriage (53) foremost; The front portion of conveying shedding mechanism (3) is follower rollers (50), and rear portion, for driving hydraulic drum (56), drives hydraulic drum (56) to adopt hydraulic pressure or electric drive; Conveying shedding mechanism (3) is foldable structure, folding conveying shedding mechanism is at the rear portion of carriage (53) configuration folding stand (61) and collapsible adjusting bracket (58), collapsible adjusting bracket (58) is driven by carriage folding ram (62), folding stand (61) and pass through hinge between collapsible adjusting bracket (58) and carriage folding ram (62); Belt flexibility tensioning apparatus (63) is installed between carriage (53) and folding stand (61); Elastic scraper device (55) is placed in conveyer belt (60) below, is arranged on the bottom of carriage (53);
Described electrical control system (4) comprises major loop, control loop and lighting loop, primarily of electric control box (75), circuit control panel (76), isolation reversing switch (77), fuse (78), control transformer (79), mechanical self-latching push switch (80), contactor (81), electric bell (82), illuminating lamp (83), press button (84), emergency stop switch (85), resistance-capacitance device (86), travel driving motor (16), electronic protector (88), wiring terminal, connecting conducting wire composition; Isolation reversing switch (77), fuse (78), control transformer (79), contactor (81), resistance-capacitance device (86), electronic protector (88) circuit control panel (76) be equipped with; Electric control box (75) by electronic box support installing on carriage (53) or vehicle chassis frame (7);
Arrange elastic rubber ring between described electric control box (75) and electronic box support, electric control box (75) is explosion-proof type electric control box, and illuminating lamp (83) is Explosionproof light, and travel driving motor (16) is explosion-proof motor; Press button (84), emergency stop switch (85) are shifted in the guard shield of department's control platform (44);
Described hydraulic system and operating mechanism (5) thereof are primarily of fuel tank (13), priority allocation valve (15), hydraulic buffering valve (17), return filter (19), radiator (20), gear pump (21), running motor (22), bucket cylinder (34), oil cylinder of small arm (37), big arm cylinder (38), angling cylinder (40), multiple directional control valve (43), hydraulic drum control valve (48), hoist cylinder (54), folding ram (62), steering cylinder (94), hydraulic steering gear (95), conveying motor (96), air filter (90), content gauge (91), oil absorption filter (92), choke valve (93) and fluid pressure line composition, multiple directional control valve (43), hydraulic drum control valve (48) are installed on department's control platform.
2. wheeled drive hoeing machine according to claim 1, is characterized in that: described vehicle chassis (1) is crawler type double motor driving vehicle chassis.
3. wheeled drive hoeing machine according to claim 1, is characterized in that: described conveying shedding mechanism (3) is telescopic conveying shedding mechanism, and telescopic conveying shedding mechanism is at the rear portion of carriage (53) configuration telescopic movable frame and adjusting bracket.
Priority Applications (1)
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