The revolution tray carriage
Technical field
The present invention relates to the airport ground facilities technical field, specifically a kind of revolution tray carriage that is used for airport pallet or containerable cargo transportation.
Background technology
As everyone knows, the airport uses tray carriage to transport pallet or freight container cooperates loader to be the aircraft handling goods, it is made up of vehicle frame, road wheel and drawbar frame, vehicle frame is provided with roller and moves with utility tray, the vehicle frame lower end is provided with road wheel, front end is provided with and turns to drawbar frame, advantage be simple in structure, cost is low, deficiency is: pallet or freight container can only be through the roller translations on vehicle frame, can not on the vehicle frame of tray carriage, rotate, the rotation of pallet or freight container must be carried out on platform truck, complex operation, prolonged goods loadingunloading time, reduced work efficiency.
Summary of the invention
The objective of the invention is to solve above-mentioned the deficiencies in the prior art, a kind of novel structure, easy to operate, the revolution tray carriage saving the loadingunloading time, increase work efficiency are provided.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of revolution tray carriage, be provided with vehicle frame, road wheel and drawbar frame, it is characterized in that vehicle frame is provided with turning gear and driving device, turning gear is made up of rotary support and revolution tray rack, the rotary support upper periphery is provided with gear ring, driving device is by worm screw, swing arm, friction wheel, oscillating axle, fixed mount, fixed mount, permanent seat, main driving wheel, driving band, from power wheel, folding arm, folding arm, pull bar, foot-driven lever, stretcher and return pin are formed, captive joint with vehicle frame in the rotary support lower end, captive joint with the revolution tray rack in the upper end, the outside is meshed with worm screw through the gear ring of rotary support periphery, the worm screw two ends are hinged through fixed mount and vehicle frame respectively, the worm screw below is provided with oscillating axle, friction wheel and main driving wheel are separately fixed on the oscillating axle, the permanent seat of oscillating axle on folding arm and vehicle frame is hinged, friction wheel one side is provided with swing arm, opposite side is provided with main driving wheel, swing arm is provided with long slot bore, swing arm one end and worm screw are hinged, the other end and the oscillating axle sliding block joint that passes long slot bore, driving band one end is connected with oscillating axle through main driving wheel, the other end is through being fixed on being connected with worm screw from power wheel on the worm screw, hinge between pull bar one end and the folding arm is hinged, the other end and foot-driven lever are hinged, foot-driven lever is hinged with the support that is fixed on the vehicle frame, the foot-driven lever front end is provided with return pin, the rear end is provided with stretcher, so that stretcher drives the pull bar swing, and locate through return pin.
Driving band among the present invention can adopt chain, also can adopt belt, and main driving wheel and can adopt sprocket wheel from power wheel also can adopt belt pulley.
The present invention makes the revolution tray carriage make things convenient for cargo handing at the middle rotary-tray of advancing owing to adopt said structure, have novel structure, easy to operate, save the loadingunloading time, advantage such as increase work efficiency.
Description of drawings
Fig. 1 is a structural representation of the present invention, also is the structural representation of a kind of embodiment.
Fig. 2 is the structural representation of the birds-eye view of Fig. 1.
Fig. 3 is the structural representation of driving device among the present invention.
Fig. 4 is the structural representation of the birds-eye view of Fig. 3.
Reference numeral: rotary support 1, revolution tray rack 2, drawbar frame 3, vehicle frame 4, swing arm 5, friction wheel 6, pull bar 7, road wheel 8, stretcher 9, return pin 10, upper arm 11, worm screw 12, fixed mount 13, permanent seat 14, underarm 15, fixed mount 16, driving band 17, oscillating axle 18, main driving wheel 19, from power wheel 20.
The specific embodiment:
The present invention is further described below in conjunction with accompanying drawing:
As shown in drawings, a kind of revolution tray carriage, be provided with vehicle frame 4, road wheel 8 and drawbar frame 3, vehicle frame 4, the structure and the annexation of road wheel 8 and drawbar frame 3 are same as the prior art, this does not give unnecessary details, it is characterized in that vehicle frame 4 is provided with turning gear and driving device, turning gear is made up of rotary support 1 and revolution tray rack 2, rotary support 1 among the present invention adopts swing bearing, rotary support 1 upper periphery is provided with gear ring, driving device is by worm screw 12, swing arm 5, friction wheel 6, oscillating axle 18, fixed mount 13, fixed mount 16, permanent seat 14, main driving wheel 19, driving band 17, from power wheel 20, upper arm 11, underarm 15, pull bar 7, foot-driven lever 21, stretcher 9 and return pin 10 are formed, captive joint with vehicle frame 4 in rotary support 1 lower end, captive joint with revolution tray rack 2 in the upper end, the outside is meshed with worm screw 12 through the gear ring of rotary support 1 periphery, worm screw 12 two ends are hinged through fixed mount 16 and vehicle frame 4 respectively, worm screw 12 belows are provided with oscillating axle 18, friction wheel 6 and main driving wheel 19 are separately fixed on the oscillating axle 18, the permanent seat 14 of oscillating axle 18 on folding arm and vehicle frame 4 is hinged, the upper arm 11 of folding arm and underarm 15 are hinged through hinge, friction wheel 6 one sides are provided with swing arm 5, opposite side is provided with main driving wheel 19, swing arm 5 is provided with long slot bore, swing arm 5 one ends and worm screw 12 are hinged, the other end and oscillating axle 18 sliding block joints that pass long slot bore, driving band 17 1 ends are connected with oscillating axle 18 through main driving wheel 19, the other end is through being fixed on being connected with worm screw 12 on the worm screw 12, hinge between pull bar 7 one ends and the folding arm is hinged, the other end and foot-driven lever 21 are hinged, foot-driven lever 21 is hinged with the support 13 that is fixed on the vehicle frame 4, foot-driven lever 21 front ends are provided with return pin 10, the rear end is provided with stretcher 9, so that stretcher 9 drives pull bar 7 swings, and through return pin 10 location.
Driving band 17 among the present invention can adopt chain, also can adopt belt, and main driving wheel 19 and can adopt sprocket wheel from power wheel 20 also can adopt belt pulley.
Tray carriage among the present invention can be in advancing the rotary-tray frame.When the needs rotary-tray, stretcher 9 tramps with one's feet down, stretcher 9 drives pull bar 7 and moves to the tray carriage rear, the upper arm 11 and the underarm 15 of folding arm launch under the effect of pull bar 7 pulling force, promoting oscillating axle 18 moves down in the long slot bore of swing arm 5, friction wheel 6 is pulled to ground, when tray carriage travels forward, friction wheel 6 rotates under the friction force effect, driving oscillating axle 18 rotates, main driving wheel 19 on the oscillating axle 18 drives from power wheel 20 through driving band 17 and rotates, and then drives worm screw 12, rotary support 1 rotates, thereby drives revolution tray rack 2 and pallet rotation, simultaneously, return pin 10 on the stretcher 9 is increased to more than the upper surface of vehicle frame 4, and when pallet rotated to 90 °, the return pin 10 that revolution tray rack 2 will exceed vehicle frame 4 upper surfaces resetted, upper arm and underarm that pull bar 7 promotes folding arm reset folding, friction wheel 6 disengages with ground and stops operating oscillating axle 18, worm screw 12 and rotary support 1 run out of steam and stop, and make pallet at the middle half-twist of advancing.
The present invention makes the revolution tray carriage make things convenient for cargo handling at the middle rotary-tray of advancing owing to adopt said structure, have novel structure, easy to operate, save the lay day, the advantage such as increase work efficiency.