a universal joint mechanism

Abstract

The invention discloses a universal joint mechanism. The universal joint mechanism comprises two connecting shafts which are installed and fixed through a supporting frame; the connecting shafts are coaxially distributed; end surfaces of the two connecting shafts are in contact with each other; a connecting flange is arranged in each connecting part of the two connecting shafts; the connecting flanges are respectively and fixedly connected with the two connecting shafts through flat keys, multiple keys or fastening bolts; the two connecting flanges are mutually connected through a plurality of connecting bolts, so that end surfaces of the two connecting flanges are in close contact with each other; the contact end surfaces of the two connecting flanges take tooth shapes which are meshed with each other; the tooth shapes adopt radial straight teeth taking a shaft axis as a center. By adopting the technical scheme, micro and accurate adjustment of connecting positions of the two connecting shafts in the peripheral direction is realized, the accuracy of relative positions of upper and lower rollers in the circumferential direction is guaranteed during the rolling of deformed steel bars, the quality of the deformed steel bars is guaranteed, simultaneously the scheme is convenient to adjust, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of mechanical transmission structures, and relates to a shaft end connection structure of a transmission shaft. More specifically, the invention relates to a universal joint mechanism. Background technique [0002] In steel rolling production, when producing finish-rolled threaded steel bars, the phases of the upper transverse ribs of the steel bars must be aligned, because the finished-rolled thread is a straight steel bar hot-rolled with discontinuous external threads, which can be twisted at any cross-section. It can be connected with a connector with internal thread or screwed with a nut with thread for anchoring, and can be connected with any other length of steel bar. Therefore, a key technical point in the production of finish-rolled rebar is how to align the phases of the finished transverse ribs. [0003] figure 1 Shown is the structure of the prior art, the ordinary universal joint shaft coupling...

AI Technical Summary

Problems solved by technology

[0003] figure 1 Shown is the structure of the prior art, the ordinary universal joint shaft coupling rotates through the drum-shaped teeth at the end of the reducer, driving the spline shaft 7 to rotate, the support frame 3 plays a supporting role, and the spline shaft 7 drives the outer gear sleeve 1, The inner gear sleeve 2 drives the outer gear sleeve 1 and the roll to rotate, but after the universal joint coupling is installed, the phase between the upper and lower rolls cannot be adjusted, that is, the relative relationship between the upper and lower rolls in the circumferential direction (rotation direction) The position cannot be adjusted

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