Preparation method of worm and gear for heavy-duty vehicle main reducer system

Abstract

The invention discloses a worm and gear for a heavy-duty vehicle main reducer system and a preparation method thereof, and relates to the field of preparation of parts of heavy-duty vehicles. The worm and gear comprises a metal main body and a protective layer, the metal main body forms the worm and gear, and the protective layer covers the metal main body; a buffer layer is arranged between the protective layer and the metal main body; the protective layer comprises the following raw materials in parts by mass: 10-20 parts of diamond powder, 50-60 parts of molybdenum disulfide and 10-15 parts of a binder; and the buffer layer comprises the following raw materials in parts by mass: 15-25 parts of graphene, 25-30 parts of aluminum-doped zinc oxide powder and 15-20 parts of phenolic resin conductive adhesive powder. The preparation method comprises the following steps: S1, preparing a smooth surface; S2, preparing the buffer layer; S3, preparing the protective layer; and S4, preparing the worm and gear. The worm and gear and the preparation method have the beneficial effects that the protective layer is stabilized on the surface of the metal main body in a buffer layer-protective layer combined form to form a stable structure, so that the wear-resistant purpose is achieved.

Description

technical field [0001] The invention relates to the field of parts preparation of heavy-duty vehicles, in particular to a worm gear and a preparation method thereof for a main reduction system of a heavy-duty vehicle. Background technique [0002] The worm gear structure is often used to transmit motion and power between two interlaced shafts. The worm gear and the worm are equivalent to the gear and the rack in the middle plane, and the worm is similar to the screw in shape. At present, worm gears and worms are mostly used in power systems, replacing traditional gear sets, which can realize multi-directional transmission of power, and because of the large volume of heavy-duty vehicles, the worm gears and worms used as power systems need to carry a huge load pressure or friction. [0003] Most of the current worm gears and worms contain low-carbon steel components, and the high hardness and high wear resistance of low-carbon steel are used to improve the durability of worm ...

AI Technical Summary

Problems solved by technology

[0003] Most of the current worm gears and worms contain low-carbon steel components, and the high hardness and high wear resistance of low-carbon steel are used to improve the durability of worm gears and worms. It works under high pressure, so its wear and tear is relatively severe, and even if some existing machine parts are coated with a protective layer, due to the possibility of relative sliding between the protective layer and the metal conductor, the surface of the two parts needs to be roughened However, the current roughening treatment is mostly for grinding or polishing the surface of two parts, and lacks external protection means or measures, resulting in a high part scrap rate

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