Driving gear of large type excavator for open-pit mine

Abstract

The invention relates to a driving gear of a large type excavator for open-pit mine. The driving gear comprises a gear body and gear teeth, wherein the gear body and the gear teeth are arranged in a separated way; the gear body is provided with a one-piece annular flange with equal thickness along a round of the middle circumference of the outer edge of the gear body; the thickness of the annularflange is less than that of a gear disc of the gear body, so that symmetrical outwardly extending annular shoulders are formed at the two sides of the bottom of the annular flange; the gear teeth respectively consist of two symmetrical ring-shaped gear rings, each ring-shaped gear ring is evenly provided with a plurality of wheel teeth along the circumference; inner rings of the ring-shaped gear rings and an annular convex shoulder of the gear body are in spline connection with each other in a matching way; the ring-shaped gear rings are symmetrically arranged at the two sides of the annular flange; the ring-shaped gear rings are positioned under the wheel teeth and are fixed with the annular flange by means of countersunk bolts; a U-shaped groove is formed by combining the wheel teeth with the top of the middle annular flange, and an opening formed in the axial tangent plane of the U-shaped is outward. The driving gear of the large type excavator for the open-pit mine solves the technical problem that in the prior art, gears are not wear-resistant or are easily broken, thus being scrapped on the whole; a gear ring only needs to be replaced, but the gear body does not need to be replaced, so that the cost is lowered, and the service life of the driving gear is prolonged.

Description

technical field [0001] The invention relates to a driving wheel for a large-scale excavator in an open-pit mine, which is used for a large-scale excavator in an open-pit mine. Background technique [0002] The driving wheel of the large-scale excavator in the open-pit mine in the prior art is installed on the crawler frame of the excavator, and contacts with the crawler chain to drive the excavator to walk. During this process, the driving wheel will be worn by the crawler chain. [0003] The existing driving wheels on the market are all integral alloy steel castings. In order to meet the driving force requirements, expensive alloy steel castings must be used. However, the quality of steel castings is not easy to control. Often, the gears are not wear-resistant or the teeth are broken, resulting in scrapping. As a result, the service life of the product is short and the cost of use increases. Contents of the invention [0004] The purpose of the present invention is to pr...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a driving wheel for a large excavator in an open-pit mine, to solve the technical problems of the prior art that the gear teeth are not wear-resistant or easy to break, and the whole is scrapped, so that the product life is increased and the use cost is reduced

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