A kind of telescopic pallet fork
The utility model relates to a kind of telescopic pallet fork for the conveying robot use.
The pallet fork that this conveying robot uses is telescopic, mainly is made up of upper, middle and lower three forks body.Go up, middle fork can be respectively along in fork and lower fork move, the lower fork body is fixed on the lifting platform of conveying robot.Three fork bodies are connected by chain, pitch in being driven by fork mechanism, and both direction are flexible to the left and right by pitching on the chain traction.Flexible pallet fork is equipped with the lifting action of conveying robot lifting platform about this energy, can put down on shelf or takes out article from shelf.At present, the fork cross section of going up of this telescopic pallet fork device has adopted T-shape groove structure, or adopt fork in the conveyer belt conduct resembling in a kind of apparatus for handling goods of in Chinese invention disclosed patent specification CN1114283A, delivering, so the complex structure of pallet fork.In addition, because the structure of chain, sprocket wheel is limit, the pallet fork height generally will reach 165mm.Since in the process of access goods, the certain space of flexible needs of pallet fork, and any goods can not be deposited in this space, has therefore become dead space, thereby has reduced the efficient of shelf article storages.
The purpose of this utility model provides a kind of simple in structure, can reduce the pallet fork device of pallet fork sectional dimension, raising shelf article storage efficient.
The purpose of this utility model is achieved in that the T-shape groove structure that last fork cross section is adopted makes bathtub construction into, and is arranging evenly respectively on the two sides that bearing more than 4 is as guiding with support; Make the chain that connects three fork bodies into seizing wire or steel wire, and make the grooving center line of pulley depart from the radius of fork cross-section center line greater than seizing wire or steel wire.
The utility model has been simplified the structure of last fork and middle fork owing to adopted the fork of going up that has bathtub construction and bearing, has made things convenient for processing, manufacturing; Owing to adopted seizing wire or steel wire as connecting and traction, reduce the size in pallet fork cross section, thereby can reduce dead space, improve shelf article storage efficient.
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing.
Fig. 1 is the front view of telescopic pallet fork.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Describe details and working condition in detail below in conjunction with Fig. 1 and Fig. 2 according to the concrete device that the utility model proposes.
This device is made up of last fork 1, steel wire rope 2, middle fork 3, pulley 4, lower fork 5, bearing 6, packing ring 7, bearing pin 8, pulley spindle 9.The 10th, the lifting platform of transfer robot, the 11st, pallet fork executing agency.Two steel wire rope one ends in the device are separately fixed at the two ends of fork, the pulley in walking around respectively then in fork and the lower fork, the middle part of fork in being fixed on.Last fork 1 cross section is grooved, and on two sides respectively evenly disposed axle to make be guiding and bracing or strutting arrangement, the frictional resistance when reducing the pallet fork operation and support and go up the article that fork is born.The grooving center line of pulley 4 departs from fork 1 cross-section center line, so two steel wire ropes in the device can not collided when pallet fork moves.
In the middle of fork 3 be performed mechanism 11 and drive when lower fork 5 moves, steel wire rope 2 will draw to pitch in the fork edge and move, left or right stretch out.Stretch out put in place after, the lifting platform of conveying robot is done elevating movement.Right Seat stay is done motion withdrawal in the other direction, finishes the action of putting down on shelf or taking out article from shelf.
In the present embodiment, the diameter of steel wire rope is 1.2mm, and the height of pallet fork only is 65mm.
More than be to be that example has illustrated implementation method of the present utility model as connector, can substitute seizing wire with steel wire equally and realize the purpose of this utility model with steel wire rope.