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roller conveyor has a long history, at the time of the ancient Egyptians built the pyramids, began to use its "pivot "principle, handling stone.
Now the roller conveyor prototype is said to be generated during the implementation of the 19th century the US auto industry automation. Today, roller conveyors are widely used in various industries. Such as mining ports automated production lines. With the construction of logistics center as a labor-saving automated conveyor system, a large number of roller conveyor is put into use.
Generally, the roller conveyor is continuously conveyed article handling machine. Roller conveyor may be defined as: or more member configured as a support surface carrying the mechanical movement of the goods to be transported. Our definition of a roller conveyor roller conveyor industry are: an arbitrary constant from the discharge or loading, the set route, the bulk cargo handling and packaging, and water in a vertical manner without tilting mechanical handling equipment here emphasize two points 1) from the loading place of discharge; machine (2) according to the set route cargo handling. Roller conveyor is the most significant features: continuous conveyance and handling accuracy within a certain time interval.
Category classification and the roller conveyor
type roller conveyors are many different classification methods have also, as seen from the drive can be divided into: a gravity-driven and the drive power into two categories. It may be configured to distinguish between a transmission mode.
Also known roller conveyor roller or roller conveyor. The two ends of the rollers through the shaft centerline, fixed on the bracket of the right and left sides, is fixed above a number of rollers arranged at regular intervals to constitute a roller conveyor.
Also known as roller idlers or rollers. It is constituted by a bearing attached on both ends of the tube to be cut. Press rollers can be divided into a linear shape and Yu conical type linear roller conveyor for the linear, tapered corners for rounding the drum-type conveyor according to applications, the rollers may be aluminum stainless steel material selected resin.
Press roller conveyor drive modes: gravity (drive) roller conveyors and power (drive) roller conveyor into two categories. The company to be introduced and described configuration characteristics and uses of the roller conveyor.
Gravity roller conveyor is continuously conveyed by its own weight mechanical items. Strictly speaking, when the conveyor is inclined, it is conveyed by its own weight to the article, and when the conveyor is horizontal, not by gravity, but to move the items through human or other external forces.
Advantage of gravity roller conveyor is without power, simple structure, low maintenance costs, low cost and easy to change the layout and so on. But there are also the following problems.
(1) because it is on an inclined roller conveyor the article moves by its own weight, the longer the roller conveyor, due to the acceleration caused by moving faster and faster;
moving speed (2) of heavy items, light moving slowly article or does not move. When light weight articles while being transported, the large difference between the weight of the article, the article collide due to a difference in moving speed, resulting in damage to the article or roll from the roller conveyor;
(3) The carton is hygroscopic moisture, even if the drum conveyor angle of inclination must also change due to humidity rainy season or dry season, stop time shift problem occurs when the article. The degree of design of the inclined gravity roller conveyor, represented by the slope shift from its small value will vary with temperature and humidity of the ground state of an article conveyed and the outside temperature and humidity occurs, therefore, very difficult to obtain the correct value. Assuming that the article bottom surface is a plane, which is shifted from the inclination reference value may be determined specification.
Gravity roller conveyor according member using rollers with different materials, and for a variety of (material) series products gravity roller conveyor. https://www.cnblogs.com/1906hsxe/p/12534408.html