Eccentric gear and welding process thereof

Abstract

The invention discloses an eccentric gear and a welding process thereof. The eccentric gear comprises an eccentric body assembly, a counterweight body, a gear ring, a first web, a second web and supporting bodies; the first web and the second web are arranged in parallel at intervals, the plurality of supporting bodies are arranged at intervals between the first web and the second web, and the twoends of each supporting body are arranged on the first web and the second web in a penetrating mode and are fixed; the same side edges of the first web and the second web are fixed with one side surface of the counterweight body correspondingly so as to form a round cake shape; and the gear ring is arranged on the outer ring of the round cake structure formed by the first web, the second web andthe counterweight body and is fixed, and the eccentric body assembly is sequentially arranged on the first web and the second web in a penetrating mode. The eccentric gear is designed to be of a splittype, and the gear is compact in structure and better in quality through welding; and the gear ring four-point symmetric machining position is adopted, and the welding method for synchronously conducting three-point heating and the fourth point welding is adopted so that the welding deformation can be effectively reduced, the crack tendency can be reduced, and the quality of the weld joint can beimproved.

Description

technical field [0001] The invention relates to an eccentric gear, in particular to the structure of the eccentric gear and its welding process. Background technique [0002] Traditional gears are mostly integral castings. Casting gears have poor density, heavy processing workload, long production cycle, and environmental pollution, which affect the production and manufacturing of gears. However, welded gears have a dense structure and reasonable material utilization, so they are more economical and efficient. efficient. Gears are mainly used to transmit power and change the direction of transmission. Because it involves power transmission, in order to ensure the overall structural strength of the gears, the welding quality of the welded structural gears directly affects the quality of the entire machine. [0003] The rim of the eccentric gear is usually medium carbon alloy steel such as 42CrMo, the eccentric body is 45 steel, and the spokes and ribs are Q345 ordinary steel...

AI Technical Summary

Problems solved by technology

[0002] Traditional gears are mostly integral castings. Casting gears have poor density, heavy processing workload, long production cycle, and environmental pollution, which affect the production and manufacturing of gears. Welded gears are dense in structure and reasonable in material utilization, so they are more economical and efficient. efficient

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