Hybrid bulldozer and power system thereof

Abstract

The invention provides a power system of a hybrid bulldozer. The power system comprises two symmetrically distributed subsystems which are same in structure, and each subsystem comprises a final drive unit (22) and a motor deceleration integration device (23), wherein each final drive unit (22) is provided with a secondary speed reducer, the output end of each secondary speed reducer is connected with a walking device (21) of the power system of the hybrid bulldozer, and each motor deceleration integration device (23) is connected with each final drive unit (22) and comprises a primary speed reducer and a motor (232). The power system of the hybrid bulldozer, disclosed by the invention, utilizes three-level deceleration and simultaneously avoids utilization of a differential. Compared with the power system, employing four-level deceleration and provided with the differential, of the hybrid bulldozer in the prior art, the power system of the hybrid bulldozer, disclosed by the invention, can be used for reducing the number of used parts and components so as to reduce a space occupied by the power system of the hybrid bulldozer. The invention further provides a hybrid bulldozer with the power system.

Description

technical field [0001] The invention relates to the technical field of bulldozer manufacturing, and more specifically, relates to a hybrid bulldozer and its power system. Background technique [0002] With the growing demand for energy and the intensification of the contradiction between resource scarcity, energy conservation and emission reduction have received more and more attention. In the field of construction machinery, the use of hybrid technology for energy recovery and reuse has become an effective measure for energy saving and consumption reduction of construction machinery. [0003] The hybrid power system is applied to bulldozers, resulting in a hybrid bulldozer, which can realize energy saving and emission reduction of construction machinery. [0004] Hybrid Bulldozer: A new type of energy-saving bulldozer whose travel is driven by a motor rather than directly from an engine. The electrical energy required for the motor to work comes from the power generation ...

AI Technical Summary

Problems solved by technology

[0011] However, in the single-motor hybrid bulldozer power system, the speed reducer is a two-stage speed reducer, and the final drive device 12 is provided with a two-stage speed reducer, so the single-motor hybrid bulldozer power system adopts four-stage speed reduction, making its structure more complicated. It takes up a lot of space, and a single motor needs a differential in the process of driving, which further complicates the structure of the entire bulldozer power system

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