Two-gear mechanical vehicle transmission

Abstract

The invention provides a two-gear mechanical vehicle transmission. A gearbox input shaft is coaxially connected with a motor; the effect of a direct driving large motor achieved through matching witha small motor is achieved by using the speed adjusting and torque increasing characteristics of the transmission; and meanwhile, two gears can be selected, so that the motor works in an efficient areamore time, and the comprehensive electric consumption is lower. The two-gear mechanical vehicle transmission comprises a first shell and a second shell; the second shell is covered at the back end ofthe first shell; the first shell and the second shell are combined to form a mounting cavity; a first shaft projected outwards is arranged on the front end wall of the first shell; an inner end of the first shaft is inserted in a front end area of the mounting cavity; an outward projection end of the first shaft is externally connected with a driving motor; a one-shaft normally engaged gear sleeves the outer ring surface of the inner end of the first shaft; an intermediate shaft is arranged between the front end wall and the back end wall of the mounting cavity; the intermediate shaft is arranged right under the first shaft in parallel; and an intermediate shaft normally engaged gear, an intermediate second gear and an intermediate first gear sleeve the outer ring surface of the intermediate shaft in from front to back.

Description

technical field [0001] The invention relates to the technical field of transmissions, in particular to a second-speed mechanical automobile transmission. Background technique [0002] The direct-drive motors used in existing passenger and logistics commercial vehicles require a large speed range, and the cost increases accordingly. Moreover, the motor does not spend much time working in the high-efficiency zone under different road conditions, resulting in an increase in power consumption. Contents of the invention [0003] In view of the above problems, the present invention provides a second-speed mechanical automobile transmission, which enables the coaxial connection between the transmission input shaft and the motor, and uses the speed regulation and torque increase characteristics of the transmission to achieve the effect of matching a smaller motor to directly drive a large motor. At the same time, there are two gears to choose from, so that the motor can work more ...

AI Technical Summary

Problems solved by technology

[0002] The direct-drive motors used in existing passenger and logistics commercial vehicles require a large speed range, and the cost increases accordingly. Moreover, under different road conditions, the motor does not spend much time working in the high-efficiency zone, resulting in an increase in power consumption.

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