A single tension spring type clutch relay device

Abstract

The invention relates to a single extension spring type clutch relay device. The relay device comprises a gear and a driving shaft, wherein the gear is hollow and is provided with an inner tooth; the driving shaft penetrates through an inner space of the gear and is provided with a shaft key; the inner tooth and the shaft key are coaxial with each other in a shaft rotating space, and axial positions are overlapped; bulges are arranged on one side surface of the gear; a through hole is radially formed in the driving shaft; and one extension spring penetrates through the through hole in the driving shaft to be connected with the bulges on the gear. According to the relay device, the bidirectional clutch effect is realized through change of the relative angle of the driving shaft and the gear, problems of collision and interference caused by engagement and disengagement of the gear and a rack as well as non-synchronous dual-driving in the relay driving process are solved, and stable operation in the relay process in the dual-driving state is guaranteed.

Description

Technical field [0001] The invention relates to the field of transmission technology, in particular to a single tension spring type clutch relay device. Background technique [0002] During the operation of the PWR nuclear power plant, the reactor shutdown and refueling operation process requires the new / spent fuel assembly to be transported back and forth between the reactor building and the fuel building. The transportation path needs to carry the fuel assembly through the fuel transfer channel from a plant Transport to another plant. Due to the double-layer containment design of the third-generation nuclear power plant, the length of the fuel transfer channel has been greatly increased compared with the second-generation and second-generation improved nuclear power plants. The lengthening of the transportation path puts higher requirements on the drive system of the fuel transfer device . [0003] In the process of realizing the above-mentioned transportation of nuclear fuel a...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the defects existing in the prior art, the present invention provides a single tension spring type clutch relay device, which solves the problem that the rack and pinion of the drive mechanism enters and disengages and the double drives are out of sync during the reactor shutdown and refueling operation. The collision and interference problems caused by it ensure the stability of the relay process under the dual drive state; the structure is simple, and it is easy to process and install

Images