Sealed dual-redundancy roller way drive devices

Abstract

The invention relates to sealed dual-redundancy roller way drive devices. Each roller way drive device set comprises a driving portion arranged outside a wall (15) and a transmission portion arranged in the wall (15), wherein the transmission portion penetrates through the wall to be connected with the driving portion. Each driving portion comprises a motor (1), a speed reducer (2) and a non-contact electromagnetic clutch which are sequentially connected. Each driving portion comprises a gear (10) and a rotating roller (11) connected with the gear. The non-contact electromagnetic clutches are internally provided with sealing cylinders, and the sealing cylinders seal the drive portions. By means of the drive devices, the internal space and the external space can be isolated effectively, only the roller way transmission portions are arranged in a radiation environment or a toxic environment in the wall, and the driving portions are arranged in the normal air outside the wall, so that when components break down, maintenance is facilitated, and the safety of the operating personnel is protected.

Description

technical field [0001] The invention belongs to a mechanical transmission system, in particular to a sealed double-redundancy roller table driving device. Background technique [0002] In order to reduce personnel operations and protect human safety, roller tables operating in radioactive or toxic environments must have reliable sealing and high reliability. The most prone to failure part of the roller table transmission system is the driving device, so the roller table driving device adopts the redundancy design principle, that is, two sets of driving devices are used as backups for each other. When one driving device fails, the other set can continue use. And each set of driving device has reliable sealing performance. [0003] The roller table transmission can be designed in the form of a motor and an electromagnetic clutch accelerator and decelerator. The electromagnetic clutch is arranged between the motor and the reducer, and two sets of drive systems are set up, the...

AI Technical Summary

Problems solved by technology

This structure is not sealed, and under long-term load conditions, the product will have a certain amount of heat and wear, and the gap between the friction plates needs to be further adjusted. Overloading may cause damage to the electromagnetic clutch.

Another type of roller table transmission structure is to use a two-way overrunning clutch instead of an electromagnetic clutch. This clutch is a single mechanical structure and has the characteristics of large transmission torque, but the two-way overrunning clutch has no safe disengagement function. When overloaded, it may cause damage in the transmission chain. Weak links such as overrunning clutches or reduction gears are damaged

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