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Multi-layer shuttle type storage rack best column design structure
2022-03-31 17:34
Multilayershuttle shelfThe system generally includes the main steel structure of the shelf, the shuttle car, the lifting machine equipment, the transmission line equipment, the power supply and the network control system, etc. The main steel structure of the shelf is mainly divided into: column, column support, guide rail, shelf, vertical tie rod device, horizontal tie rod device, etc., this paper will discuss in detail the design requirements and preferred structure of the shelf column.
Multi-layer shuttle shelf is a novel intensive shelf form, which has been more and more applied to storage shelves in recent years. The advantages of multi-layer shuttle shelf are: high storage density, high warehouse utilization rate, high work efficiency, greatly reducing operation waiting time, the effective space utilization rate can be increased to 90% at most, and the site utilization rate can reach more than 80%, which is suitable for warehouses of various material box sorting forms. Multi-layer shuttle shelf system is a more complex system and design process, to consider many factors, including: shelf steel structure stability and carrying capacity, precision deviation control, shuttle car in the shelf when running intelligent, high efficiency, shuttle car handling box when the dynamic stability of the dynamic stability and shelf steel structure, as well as supporting hoist, supporting the supporting equipment. All of these put forward high requirements for the design of multi-layer shuttle shelves.
When designing multi-layer shuttle shelves, the safety and static stability of the whole shelf should be considered. At the same time, the deviation accuracy of multi-layer shuttle shelves and the dynamic stability of shuttle car in operation should be considered. The design of shelf column should meet the safety factor of the 2.0, and the material with large section should be selected as far as possible to ensure the stability and deviation accuracy of the shelf. Bolt assembly connection shall be adopted for the fixing of the column, beam and support bar, avoiding the form of hanging buckle. Corresponding fixing round holes can be evenly arranged on the front of the column, and an opening is reserved on the inner side of the column for the support between the assembled columns.
The height of the column is generally determined according to the height of the floor and the number of floors N. In addition, factors such as the height limit of the warehouse, the height of the hoist, the fire protection layer and the maintenance layer should be considered. The width of the column piece is determined by the width of the material box plus the pick-up space W2 of the shuttle car. Generally, it is not more than 1.5M. If it exceeds 1.5M, the instability rate of the column piece shall be calculated separately.
load calculation of column:
Under normal circumstances, the maximum weight of the multi-layer shuttle shelf is not more than 50KG, and the number of single-row cargo cells is not more than 5. Column load weight = 50KG (weight of single material box) * 5 (quantity of goods) * N (number of layers) shelf weight equipment weight. Each project according to the actual situation of different column load calculation method is also different.
This section column is processed by continuous punching and rolling, and Q235 can meet the design requirements without special circumstances. This structural column can be used in multi-wear shelves with a height H of no more than 20M and a load of no more than 15 tons, and has been verified in a number of actual projects, fully meeting the requirements of multi-wear shelves.
Optimal Design of the Column Foot
In order to better control the horizontal height deviation e, recommend the following two column foot structure: single screw adjustment foot and double screw adjustment foot. Two kinds of anchor structure can meet the deviation requirements of the horizontal height of the column, and the two structures have their own advantages and disadvantages.
Single screw features: simple structure, convenient construction, floor settlement can be two times after adjustment. However, because the overall structure relies on a single screw bearing and adjusting the level, the overall load capacity of the column will be reduced, and the vertical accuracy effect is general.
Twin-screw adjustment features: stable structure, high load-bearing capacity, high vertical precision. However, due to the use of non-shrinkage cement at the bottom, the second adjustment of the shelf after uniform settlement is difficult.
Above we introduce the design and preferred structure of the multi-layer shuttle shelf column in detail, and provide several structural forms of the column in this paper. Through calculation and experimental analysis, the best design scheme is recommend to meet the design requirements of the multi-layer shuttle shelf.
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