Multi-nut fixed torque mounting device

Abstract

The invention relates to a multi-nut fixed torque mounting device which comprises a shell, a linking sleeve and more than two nut sleeves, wherein the linking sleeve and the nut sleeves are arranged on the shell; a guide rod with a thread is connected at the center of the tail end of each of the nut sleeves; a torsion-limiting gear, a front spring baffle, a pressure spring, a rear spring baffle and an adjusting nut are mounted on the guide rod in turn; the tail end of each of the nut sleeves is connected with the torsion-limiting gear through a flange ratchet; the adjusting nut is clung to the rear side of the rear spring baffle; a gear which is meshed with the torsion-limiting gear is arranged on the periphery of the linking sleeve; and the positions of multiple nut sleeves are corresponding to the positions of to-be-fastened nuts. The multi-nut fixed torque mounting device can once fasten multiple nuts by only rotating the linking sleeve; while the nuts are fastened, the torsion values are limited; the fastening process is greatly simplified; the labor capacity of labors is reduced; the time and labor are saved; and the working efficiency is increased.

Description

technical field [0001] The invention relates to a nut fastening device, in particular to a multi-nut constant torque installation device. Background technique [0002] With the development of the manufacturing industry, many devices need to fasten multiple screws during assembly or installation, and the torque used during fastening must reach a certain value. For example, the automobile manufacturing industry is currently developing rapidly. There are often more than one screw to fasten the body parts, and the torque used for fastening must reach a certain value. For example, four bolts are needed to fasten the wheel hub. The nuts tightened on each bolt must reach the same torque. Therefore, when installing the wheel hub, it is necessary to install the four nuts on the bolts of the wheel with a small torque first, and then use a torque wrench with a fixed torque. Each nut is tightened again, and the whole tightening process needs to be repeated many times to complete the tw...

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly solves the technical problem that the original tightening of multiple nuts requires two procedures to be repeated many times, resulting in a large amount of labor for workers, time-consuming and laborious work, and low work efficiency; it provides a multi-nut fixed torque installation device, which can tighten Fastening multiple nuts can be completed with only one operation, and the torque value is also limited when the nuts are fastened, which greatly simplifies the fastening process, reduces the labor workload of workers, saves time and effort, and improves work efficiency

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