Two-stage reducing transmission system for large heavy-load electric mine truck

Abstract

The invention discloses a two-stage reducing transmission system for a large heavy-load electric mine truck. The two-stage reducing transmission system comprises a power input shaft, a first-stage transmission mechanism and a second-stage transmission mechanism, wherein each of the first-stage transmission mechanism and the second-stage transmission mechanism is a planetary gear mechanism; a first-stage sun gear of the first-stage transmission mechanism is used as a power input element of the first-stage transmission mechanism, and fixedly and externally sleeves a power input shaft in the circumferential direction; and a first-stage planetary carrier of the first-stage transmission mechanism is used as a first power output element of the first-stage transmission mechanism, and in transmission connection with a hub. Power is transferred to the hub simultaneously through a two-stage reducing mechanism, so that increasing for the drive efficiency is benefited, high drive force is ensured,and meanwhile, the two-stage reducing transmission system is higher in bearing strength and stability; and the two-stage reducing transmission system is compact in structure, small in size, high in bearing strength, convenient to maintain, low in cost, safe and reliable to use, and beneficial to popularization.

Description

technical field [0001] The invention relates to the field of reducers for electric vehicles, in particular to a two-stage deceleration transmission system for large heavy-duty mine electric trucks. Background technique [0002] Heavy-duty mining trucks used for transportation in large-scale open-pit mines. The wheel-side reducer for driving is installed in the center of the tires. The size is limited by the tires. It is small in size, large in load, and has a special structure. All of them are imported, which are expensive and costly to maintain; the structural mechanism is complicated, and the reducer is easily deformed due to the large force on the reducer. After long-term use, the stability is poor and the service life is short. [0003] Therefore, in order to solve the above problems, a two-stage deceleration transmission system for large-scale heavy-duty mining electric trucks is needed, which can effectively improve the stress of the deceleration transmission mechanism...

AI Technical Summary

Problems solved by technology

[0002] Heavy-duty mining trucks used for transportation in large-scale open-pit mines. The wheel-side reducer for driving is installed in the center of the tires. The size is limited by the tires. It is small in size, large in load, and has a special structure. All are imported, expensive, high maintenance costs; the structure is complex, due to the large force of the reducer, it is easy to cause structural deformation, poor stability after long-term use, and short service life

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