Crowned tooth coupler

Abstract

The invention discloses a crowned tooth coupler, and belongs to the field of couplers. The crowned tooth coupler comprises two outer gear shaft sleeves in mirror symmetry, and gear rings protruding in the peripheral direction are arranged at the close ends of the two outer gear shaft sleeves. The crowned tooth coupler further comprises an inner tooth hoop which is arranged on the gear rings of the two outer gear shaft sleeves in a sleeving mode. Each outer gear shaft sleeve is composed of a shaft sleeve and an outer tooth sleeve coaxially arranged, each gear ring is arranged on the corresponding outer tooth sleeve, and each outer tooth sleeve is detachably arranged on the corresponding shaft sleeve in a sleeving mode. Each outer gear shaft sleeve is composed of the shaft sleeve and the outer tooth sleeve coaxially arranged, so that when the gear ring part of one outer gear sleeve is damaged, only the outer gear sleeve part is replaced, and the corresponding shaft sleeve part can be reused, so that the cost is reduced. In addition, the shaft sleeves and the outer tooth sleeves in different sizes are matched to form the outer gear shaft sleeves adaptive to various speed reducers and rolling mills, so that the number of spare parts is largely reduced, and the conditions that inventory occupies investment are reduced.

Description

technical field [0001] The invention relates to the field of shaft couplings, in particular to a drum gear coupling. Background technique [0002] In the continuous rolling production line of steel mills, various types of reducers and rolling mills are often involved, so the production line generally has several specifications of couplings, and the couplings usually adopt drum-shaped gears, for example, the specifications are Φ140×Φ180, Φ150 ×Φ180, Φ152×Φ180, Φ160×Φ180, Φ180×Φ180 and other sizes; the two dimensions in each specification are the diameter of the shaft hole at the end of the reducer×the diameter of the shaft hole at the motor end. The existing drum gear couplings mainly have the following disadvantages: 1. If the specifications and models are not uniform, the spare parts will increase correspondingly, which will occupy a large amount of inventory funds; 2. The specifications and models are not uniform, the spare parts will be poorly interchangeable, and the wor...

AI Technical Summary

Problems solved by technology

The existing drum gear couplings mainly have the following disadvantages: 1. If the specifications and models are not uniform, the spare parts will increase correspondingly, which will occupy a large amount of inventory funds; 2. The specifications and models are not uniform, the interchangeability of spare parts is poor, and the work efficiency is low; 3. The easily damaged part of the coupling is mainly the ring gear, but it only accounts for 1 / 4-1 / 3 of the overall mass of the coupling. The existing coupling often needs to be replaced as a whole after it is damaged. The replaced coupling is made of scrap steel Form discarded, resulting in increased cost

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