Jujumi has developed stacker, AGV car, RGV, EMS, handling robot, conveying equipment, WMS and WCs, which are used in automated warehouse. They have been successfully applied in many automated logistics system projects.Here is a comprehensive introduction to the structure of the tunnel stacker
① Lifting mechanism: the lifting mechanism of tunnel stacker can be composed of motor, brake, reducer or sprocket and flexible parts. The commonly used flexible parts are wire rope and lifting chain. Using wire rope as flexible part has light weight, safe operation and low noise; using chain as flexible part has compact mechanism.In addition to the general gear reducer, due to the need for a larger reduction ratio, so often see the use of worm gear reducer and planetary gear reducer.The lifting speed should be low gear and low speed, which is mainly used for stable stop and very short distance lifting of fork and loading platform when taking and placing goods.The working speed of the lifting mechanism is generally 12-30 M / min, and the maximum is 48 m / min.In the three kinds of driving of the stacker, the lifting power is the largest.
② Operating mechanism: the commonly used operating mechanism is the ground supporting type of the ground walking type and the hanging type or shelf supporting type of the upper walking type.The ground walking type uses two to four wheels to run on the ground monorail or double rail, and the top of the column is equipped with guide wheels.In the upper walking type, four or eight wheels are used to hang on the lower flange of I-beam at the lower chord of the roof truss, and there is a horizontal guide wheel at the lower part.There are four wheels in the upper part of the shelf supporting type, which walk along the two guide rails at the top of the shelf on both sides of the roadway, and there are also horizontal guide wheels in the lower part.
③ Loading platform and loading and unloading mechanism: the loading platform is the loading device of the cargo unit.For the pick-up stacker that only needs to pick a part of goods from the cargo grid, there is no storage and pick-up device on the loading platform, and only the platform is used to place the container.The loading and unloading device is a special working mechanism of the stacker.The part of the structure to pick up the goods is designed according to the shape characteristics of the goods.The most common is a kind of telescopic fork, which can also be a telescopic pallet, or other structural forms.
The fork extension mechanism is installed on the loading platform. Under the support of the roller, the loading platform moves along the guide rail on the column in the vertical direction (lifting). The direction perpendicular to the lifting walking plane is the fork extension direction.The operation platform of the stacker is set on the base, where the staff can operate manually or semi automatically.When the fork is fully extended, its length is more than twice the original length.Generally, the fork adopts a three section mechanism, the lower fork is fixed on the loading platform, and the middle fork and the lower fork can extend to the left and right.When the driving gear 1 rotates clockwise, the middle fork moves to the left; under the traction of the chain, the upper fork also moves to the left to reach the purpose of extending the fork to the left.When the driving gear 1 rotates counterclockwise, the fork extends to the right.
④ Rack: the rack of tunnel stacker is composed of column, upper beam and lower beam.According to the different frame structure, the roadway stacker is divided into two kinds: double column and single column.The double column roadway stacker is a rectangular frame composed of two columns and upper and lower beams. The column forms are square tube and round tube. The square tube can be used as guide rail, and the round tube needs additional lifting guide rail.It is characterized by high strength and stiffness, stable operation and high speed.It is mainly used in the three-dimensional warehouse with high lifting height and large lifting capacity.The single column roadway stacker is composed of a column and a lower crossbeam, on which a guide rail is attached.It is characterized by light weight, low manufacturing cost and poor rigidity.It is mainly used in the three-dimensional warehouse with small lifting capacity, and the running speed should not be too high.
⑤ Electrical device: electrical device is composed of electric drive device and automatic control device.Roadway stacker is generally driven by AC motor, if the speed control requirements are higher, DC motor is used to drive.There are three control modes of control device: manual control, semi-automatic control and automatic control. Automatic control includes on-board control and remote control.The stacker is a kind of lifting machinery, which should run at high speed in the high and narrow roadway.In order to ensure the safety of people and equipment, the stacker must be equipped with perfect hardware and software safety protection devices, such as travel limit device of each mechanism, falling overspeed protection device, broken rope protection device, lifting overload protection device, power-off protection device, etc.