A large-span beamless track conveyor and its control system

Abstract

The invention discloses a large-span beam-free rail conveyer. The large-span beam-free rail conveyer is composed of two independent and symmetrically-arranged monorail conveyers. Each monorail conveyer comprises a bearing rail, a balance rail corresponding to the bearing rail, a lifting sliding rail movably connected with the bearing rail and the balance rail and a drive assembly, wherein the lifting sliding rail is provided with a lifting hook capable of sliding up and down, the drive assembly is fixedly installed on the lifting sliding rail and drives the lifting sliding rail to horizontally move on the bearing rail and the balance rail, and the drive assembly is connected with a lifting hook and drives the lifting hook to slide up and down on the lifting sliding rail. The large-span beam-free rail conveyer obtains the largest performance advantage because a rigid cross beam is omitted, lowers the manufacturing and maintenance cost to the maximum extent and achieves the purpose of efficient, flexible, energy-saving, full-automatic and large-span material conveyance.

Description

technical field [0001] The invention belongs to the technical field of material transportation, and in particular relates to a large-span beamless track conveyor suitable for any automatic material transportation through a special spreader with two or more fulcrums. Background technique [0002] In many applications, such as metal pipe rod profile surface treatment line, metal wire surface treatment line, automobile body surface treatment line, metal casting surface treatment line, large cargo shipment line, nuclear fuel / waste material shipment line, etc., but not limited to these applications , It is necessary to use rail conveyors to accurately and efficiently send materials to designated locations according to the processing process requirements. The structure of the conveyor is similar to that of a crane, and its span is equivalent to the length of the material. Since the material usually has a relatively large length, up to 30 meters or longer, the track span of the co...

AI Technical Summary

Problems solved by technology

[0003] The traditional large-span conveyor with a driving structure relies on rigid beams to connect the driving devices on both sides of the track, so that the speed of movement at both ends is the same. However, as the span increases, the disadvantages of this conveyor become more and more obvious. Specifically, there are the following disadvantages: a. In order to ensure a certain overall rigidity, the mass of the transport plane increases sharply with the span, resulting in a significant increase in operating energy consumption; b. According to different load and span requirements, each transport plane must be specially customized, equipment design and manufacturing costs High; c. The two ends of the transporter will cause serious deviation during high-frequency reciprocating driving. The reasons are mostly wheel machining errors and wear, track installation errors, uneven wear of tracks, and out-of-synchronization of motor speeds. In this case, the phenomenon of biting the rails will cause the conveyor to stop, and the severe one will cause the material hanger to fall away from the lifting hook due to the offset at one end of the conveyor when placing and picking up materials, causing damage to equipment and materials; d. The material load affects the balance of the center of gravity of the conveyor during acceleration and deceleration, and the running speed of the conveyor is severely limited, making it impossible to further improve efficiency

In some designs, a rigid boom is installed on the beam of the conveyor to connect the material spreader, which further increases the mass of the conveyor and increases the height of the equipment; The speed difference is very easy to cause deviation and cause biting of the rail

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