Chain shaft and shaft sleeve structure of automatic woodworking feeder

Abstract

The invention discloses a chain shaft and shaft sleeve structure of an automatic woodworking feeder. The chain shaft and shaft sleeve structure comprises a chain shaft, wherein a mounting sleeve is arranged on the outer surface of the chain shaft; grooves are formed in the left side and the right side of the inner wall of the mounting sleeve; rolling bearings are mounted in the grooves; and the inner walls of the rolling bearings are movably connected with the outer surface of the chain shaft. According to the chain shaft and shaft sleeve structure, the chain shaft and shaft sleeve structure is changed into a structure of the chain shaft, the rolling bearings and an oil seal, so that the defects can be effectively overcome; sliding friction is changed into rolling friction, so that the friction coefficient is reduced, and abrasion is reduced; the oil seal can prevent grease from being liquefied and lost, so that sufficient lubrication during friction of the bearings and a shaft neck isguaranteed; meanwhile, dust particles are prevented from entering a friction pair, so that abnormal damage such as pulling and clamping of a friction surface is avoided; and the chain shaft, the rolling bearings and the oil seal are of a completely closed transmission structure, so that grease can be not added for a long time, daily maintenance work is reduced, and great convenience is brought toa user.

Description

technical field [0001] The invention relates to the technical field of chain shafts and shaft sleeves, in particular to the chain shaft and shaft sleeve structure of a woodworking automatic feeder. Background technique [0002] Woodworking automatic feeder is widely used in furniture manufacturing industry for auxiliary feeding during wood processing. Although the structure of the woodworking automatic feeder is improved, the chain shaft and bushing of the transmission part are easy to wear during the use of the common woodworking automatic feeder, as fast as 1-2 months, and as slow as half a year. The shaft and bushing need to be replaced. Even if you regularly clean and maintain it and add butter to increase the hardness of the chain shaft and bushing, the improvement effect will not be great. There are three reasons: First, the chain shaft and bushing belong to the sliding friction of surface contact. Under the environment of liquid lubrication, the friction coefficient ...

AI Technical Summary

Problems solved by technology

Although the structure of the woodworking automatic feeder is improved, the chain shaft and bushing of the transmission part are easy to wear during the use of the common woodworking automatic feeder, as fast as 1-2 months, and as slow as half a year. The shaft and bushing need to be replaced. Even if you regularly clean and maintain it and add butter to increase the hardness of the chain shaft and bushing, the improvement effect will not be great. There are three reasons: First, the chain shaft and bushing belong to the sliding friction of surface contact. Under the environment of liquid lubrication, the friction coefficient is high and the wear is fast; secondly, because there is a gap between the chain shaft and the shaft sleeve, the butter will liquefy and lose from the gap under high temperature operation, resulting in the chain shaft and shaft sleeve losing oil and dry grinding, especially It works under heavy load for a long time continuously, and wears out quickly; third, because there is a gap between the chain shaft and the bushing, external dust particles will enter the friction pair through the gap, causing the friction surface of the chain shaft and the bushing to be strained. However, the damage will bring great inconvenience to the user. For this reason, we propose a chain shaft and shaft sleeve structure for woodworking automatic feeders.

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