Variable-pitch large-load chain

Abstract

The invention relates to the field of chains, in particular to a variable-pitch large-load chain which comprises two symmetrically-arranged outer chain plates. Four inner chain plates are symmetrically and movably connected between the two outer chain plates; the four inner chain plates are divided into two sets, and each set is composed of two symmetrically-arranged inner chain plates; two limiting shafts are symmetrically and fixedly mounted on the outer side wall of each of the four inner chain plates; the ends, away from the correspondingly arranged inner chain plates, of the multiple limiting shafts are inserted into the outer chain plates arranged in a matched manner; two buffer mechanisms are symmetrically and movably mounted on each of the two outer chain plates; and the two ends,away from each other, of the four buffer mechanisms are inserted into the inner chain plates arranged in a matched manner; two pin shafts are rotationally installed between every two inner chain plates which are arranged in the same set; and the four pin shafts are each rotationally sleeved with a roller, and a center shaft is arranged in each of the four pin shafts. According to the variable-pitch large-load chain, the distance between the rollers can be adjusted, then the chain pitch can be changed, the chain can be connected to chain wheels of different specifications in a sleeving mode, and the application range of the chain is greatly widened.

Description

technical field [0001] The invention relates to the field of chains, in particular to a chain with variable pitch and large load. Background technique [0002] Chains are generally metal chain links or rings, which are mostly used for mechanical transmission and traction. Most chains are composed of chain plates, chain pins, bushings and other components. Chains of the same type are classified according to pitch, number of rows, chain width and Different division specifications of ultimate tensile load, especially large load chains, which are often used in large equipment. The chain needs to bear greater tension, and its body size is larger than ordinary chains. Theoretically, the larger the chain pitch, the chain speed changes and the chain The greater the dynamic load caused by the impact of the joint meshing into the sprocket. [0003] In the actual use of traditional large-load chains, the chain pitch cannot be adjusted, and chains of the same specification cannot be so...

AI Technical Summary

Problems solved by technology

[0003] In the actual use of traditional large-load chains, the chain pitch cannot be adjusted, and chains of the same specification cannot be socketed and installed on different sprockets, which greatly reduces its scope of application. For this, it is necessary to design a variable pitch large load chain

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