Two-gear electric truck transmission with force taking device

Abstract

The invention discloses a two-gear electric truck transmission with a force taking device. The two-gear electric truck transmission comprises a machine body, a force taker and a gear shifting box cover; the force taker is arranged at the upper end of the machine body; the gear shifting box cover is arranged at the side end of the machine body; an intermediate shaft, a first shaft and a second shaft are arranged in the machine body; the second shaft is movably connected with the first shaft; a triple gear part is arranged at the outer end of the intermediate shaft, and consists of three gears gradually increased; the outer surface of the second shaft is connected with a second shaft fixed gear part with inner and outer teeth through a ball bearing; small teeth of the triple gear part are engaged with outer teeth of the second shaft fixed gear part; the outer teeth of the second shaft fixed gear part are engaged with a sliding force taker gear; a second shaft sliding gear is arranged ina key slot in the second shaft, and is provided with a clamping groove; and a gear shifting module is fixed in the clamping groove. The transmission can directly form a chassis transmission and hydraulic force taking system of an electric truck with mature vehicle parts, greatly improves the part generality of the electric truck, and reduces the product cost.

Description

technical field [0001] The invention relates to the technical field of transmission for electric trucks, in particular to a two-speed transmission for electric trucks with a power take-off device. Background technique [0002] The current electric trucks (including electric tricycles and four-wheelers) with transmission devices generally use a transmission connected to the rear axle, plus a hydraulic power unit driven by an independent electric motor to solve the problem of speed change and power take-off of the hydraulic device. In this way, there are two disadvantages. On the one hand, it is necessary to redesign and manufacture the rear axle integrated with the transmission, and the mature traditional automobile rear axle cannot be used. At the same time, the electric vehicle increases the mass under the leaf spring, which affects the vibration damping performance of the vehicle, and then affects the vehicle's stability. comfort. On the other hand, the mature hydraulic ...

AI Technical Summary

Problems solved by technology

On the one hand, it is necessary to redesign and manufacture the rear axle integrated with the transmission, and the mature traditional automobile rear axle cannot be used. At the same time, the electric vehicle increases the mass under the leaf spring, which affects the vibration damping performance of the whole vehicle, and then affects the vehicle's stability. comfort

On the other hand, the mature hydraulic power take-off system of traditional vehicles cannot be used, which greatly increases the cost of electric vehicles with hydraulic devices, and at the same time increases energy consumption, thereby reducing the mileage of electric vehicles

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