ENGINEERING TRUCK AND DRIVING SYSTEM THEREOF

摘要

An engineering truck and a driving system thereof. The driving system comprises a multistage axle, a lower truck engine (1), an upper truck engine (5), a hydraulic motor (16) and a hydraulic pump (7). The multistage axle, the lower truck engine (1), and the upper truck engine (5) are arranged on the engineering truck (100); the hydraulic motor (16) is in driving connection with a wheel (10) of at least one stage axle (15); the hydraulic pump (7) is used for providing oil for the hydraulic motor; and the power of the hydraulic pump is supplied from the upper truck engine or from the lower truck engine. According to the driving system, wheels of some axles are directly driven by fully utilizing the power of the upper truck engine or the lower truck engine and a corresponding hydraulic system, so that an auxiliary driving force is provided for the whole truck under the circumstance that the driving capability of the conventional drive of the lower truck engine is insufficient or the power transmission capability is poor, so as to improve the driving performance of the whole truck, thereby satisfying the power requirement of the engineering truck under the circumstance of bad road conditions or during climbing; in addition, the wheels are directly driven by the motor so that the structures of the corresponding axles are simplified.