Shelf control device (RBG) (English more stacker crane (STC) or STORAGE and retrieval machine - S/R machine) FEM 9,001, terminology - dictionary of shelf control devices, page 7 is effected a seem-led vehicle for the operation of the goods in Hochregallager.Die motion in the following three axles: FEM 9,101 terminology/shelf control device definitions, page 3

• x = course longitudinal direction (driving unit)
• y = vertical direction (stroke unit)
• z = Gangquerrichung (load photography module)

Mechanical structure of a RBG

Chassis

The single-lane chassis connects the two impellers with the mast and/or Rahmen.Die of impellers on rails is led and is articulated stored with circle-usual RBG. Depending upon type of rail (channel, I-beam section, railway rail) and wheel load stealing plastic or vulkollan wheels is inserted into simple or double wheel housings. Depending upon power demand one or both wheels are propelled.

Mast

The mast connects the chassis with the head cross beam. Depending upon application in or two-mast versions (framework devices) is possible. Along the mast the stroke slide is led. The mast contains however still further components like the lifting gear with the rope or chain drive, the main switchgear cabinet, landings and ascent leaders with the personal protection equipment (PSA), of current feeds to the main switchgear cabinet and to the stroke slide over Schleifleitungen or cable chains.

Stroke slide

The stroke slide carries primarily the load which can be carried and is equipped with mechanisms for the admission and delivery of the load (lifting attachment).

With automatic RBG usually an emergency control post hands for disturbance recovery, with manual RBG is often a cab with more or less good equipment at the stroke slide (PSA, seat, shelves, PC, scanner, fire extinguisher"Â…) attached. An important topic is here also the organization of the escape route.

The stroke is made by a rope or a chain drive. In the hanging up safety switches are attached for the recognition of flabby rope and/or overload. At the stroke slide mechanisms are present for the prevention of a crash with rope or continued fraction. This safety barrier is above all important, if persons with the RBG can ride along.

Head cross beam

The head cross beam connects the two masts and contains the upper chassis. This chassis consists to be led of guide rollers in a rail at the shelf yoke. With a mast devices only straightforward drive (no can the head cross beam even be void.

The head cross beam is particularly important, if several circle-usual RBG are in a rail plant. In this case a collision must be prevented. The mechanisms to the anti-impact are built in the head cross beam, at the same time serve these as buffers.

Drive and achievement

The drives takes place predominantly via regulated electric motors, whereby the road performances become ever higher by according to the play times to lower and the system performance increase. Hydraulic drives are used because of the high danger of pollution, above all also for the commodity, hardly more.

Achievement of a RBG

Typical performance data of a RBG for euro pallets with 1.000 kg of pay load, Ly=30 meters height and a total weight of 20.000 kg are arranged in the following table:

These values vary strongly with the parameters RBG height and pay load. A RBG in a small article camp can reach acceleration values of 3-4 m/s due to the substantially smaller masses

Optimal speed relationship

The speeds in x and y-direction stand in a direct connection with the camp dimensions. The optimal speed relationship exists then, if during simultaneous stroke and movement of the point x0/y0 of the stroke slides in the point Lx/Ly arrives at the same time, in other words: the speed relationship vx/vy corresponds to the Lx/Ly.Die optimal lane length (Lx) for the example in above table is after this condition:

Lx = Ly* (vx/vy) = 30* (240/90) = 80 meters

SpielzeitenFEM 9,851, terminology performance record for shelf control devices - play times

Around the RBG achievement to make objectively measurable the so-called play times were defined. These play times can be measured after realization of the project directly and are thus a component of the acceptance.

Around as simple and fast a determination of the middle play time as possible a middle operating period will reach defined and P (pallet place), A (point of paging out) and E (point of storing) in the actual camp specified the points. Depending upon situation of A and E in the camp six different cases are differentiated (details in the FEM 9,851).

Singles match

A singles match of a RBG consists P of the sum of all times for an in or a paging inclusiv all driving positioning control and Gabelspielzeiten.Ein singles match for the paging describes thus the way A-> P - > A, a singles match for the storage E - > - > E.

combined play

A combined play (or also doubles match) of a RBG consists of the sum of all times for an in and a paging including all driving positioning control and fork play times. Such a play describes the distance E - > P1E - > P2A - > A

Control types

Manual control

During the manual control all movement axles are steered by the operator riding along over Joystick or tracers. There with this control type under normal conditions all movements are at any time possible are highest the accident and damage danger.

Semiautomatic control

With this control type certain courses of motion are automated. The so-called fork cycle is very helpful with the control person the subject concerned e.g. starts and with a depressing the key the following cycle starts:

Teleskopgabel drive out - lift > Teleskopgabel - > Teleskopgabel bring in

Automatic control

During the automatic control all movements of the RBG are coordinated by the storage of you computer. The data communication can be made thereby e.g. by data light barriers or radio. In addition, a manual movement of the RBG must be possible over an emergency control post here.

Relevant standards

• EN of 528 shelf control devices - security
• FEM 9,001 terminology/dictionary of shelf control devices
• FEM 9,101 terminology/shelf control device definitions
• FEM 9,221 performance record for RBG/reliability, availability
• FEM 9,311 design fundamentals for RBG wing units
• FEM 9,512 design fundamentals for RBG engines
• FEM 9,753 safety rules for shelf control devices
• FEM 9,851 performance record for shelf control devices - play times

Sources

Related links

• Under '' Download folders '' are pictures of the most diverse RBG types.

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