Escalator middle part chain type classification drive device

Abstract

The invention discloses a chain-type classification drive device at middle of escalator, which includes a load step chain (3); a step main orbit (2) for a step chain roller (32) of the load step chain (3) rolling on it; at least one chain wheel drive device equipped at middle of the escalator, which is connected with power source and disposed under the load step chain (3); and chain teeth which is arranged on a drive chain (4) of the chain wheel drive device and capable of engaging with the load step chain (3). Advantages of the classification drive device are: head drive power does not increased, structure is simple, material consume is less, self-weight is light, demand of process precision is not high, and cost is low.

Description

technical field [0001] The invention relates to a driving structure of an escalator, in particular to a chain type step-by-step driving device in the middle of the escalator. Background technique [0002] At present, the driving devices of high-lift escalators produced at home and abroad (industry habits say that the lift height exceeds 10 meters are high lift) are basically carried out along the traditional design idea, that is, with the increase of the lift height of the escalator, the escalator is simply increased. Head drive power, the higher the lifting height, the greater the drive power setting; at the same time, the load-carrying components of the escalator, such as step chains and step wheels, must be synchronized to withstand the increasing tensile and compressive strength of the escalator head. increase its own size. High-lift escalators not only have too much centralized drive power at the head, but also have large volumes of other transmission components that m...

AI Technical Summary

Problems solved by technology

The high-lift escalator not only has too much centralized drive power at the head, but also has a large volume of other transmission components that match it.

Therefore, the higher the lifting height of the escalator, the more complex its structure, the more materials it needs, its self-weight will multiply, and its manufacturing price will become more and more expensive.

Moreover, since the driving power of the escalator head and other transmission components cannot be increased excessively, the lifting height of a single escalator at home and abroad is greatly limited.

[0003] In previous elevator exhibitions, there was a graded driving device for rack and pinion in the middle of the escalator. The disadvantage is that the rack of the passive mechanism runs through the entire escalator. high, expensive to manufacture

Therefore, large elevator companies often have exhibits on display, but they have never been marketed as products and put into practical use.

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