Blade electric vehicle transmission with novel lubrication structure

Abstract

The invention provides a blade electric vehicle transmission with a novel lubrication structure, and belongs to the technical field of transmissions. The problem that an existing structure lubrication manner is not effective enough is solved. The blade electric vehicle transmission comprises a transmission case. A temporary oil storage box is arranged on the top side in the transmission case, lubricating oil is stored on the bottom side in the transmission case, and the temporary oil storage box is provided with a plurality of lubricating oil dripping holes. A transmission input shaft and an intermediate coupling shaft which are connected through a gear are located on the lower side of the temporary oil storage box and above the lubricating oil face. An intermediate coupling shaft gear is connected with a differential mechanism gear. The lower side of the differential mechanism gear is immersed in lubricating oil. The differential mechanism gear rotates, so that the lubricating oil on the bottom side of the transmission case is splashed into the temporary oil storage box, and the lubricating oil lubricates various parts of the transmission through the lubricating oil dripping holes and then flows back to the bottom side of the transmission case to form a cycle. The blade electric vehicle transmission has the beneficial effects of being complete in lubrication, moderate in oil amount, capable of saving energy, environment-friendly and the like.

Description

technical field [0001] The invention belongs to the technical field of transmissions, in particular to a pure electric vehicle transmission with a novel lubricating structure. Background technique [0002] The power of new energy pure electric vehicles is driven by electric motors. Compared with traditional fuel engines, the working speed of electric motors can reach more than 10,000 rpm and the peak torque is large. Therefore, the requirements for the load and reliability of transmission gears and bearings are higher. It is necessary to ensure that the gears and bearings are Fully lubricated, the requirements for oil products are also higher. [0003] If splash lubrication is used, due to the high speed of the motor, the high speed of the gear will cause oil churning loss, which will reduce the transmission efficiency of the transmission and reduce the mileage of the car; on the other hand, the gear agitation will also accelerate the aging of the oil and increase the mainte...

AI Technical Summary

Problems solved by technology

[0003] If splash lubrication is used, due to the high speed of the motor, the high speed of the gear will cause oil churning loss, resulting in a decrease in the transmission efficiency of the transmission and reducing the mileage of the car; on the other hand, the gear agitation also accelerates the aging of the oil and increases the maintenance cost. The use of dry oil sump lubrication requires additional oil pumps and additional power loss, and sometimes requires additional lubricating oil pipes or lubricating oil passages on the box, which undoubtedly increases manufacturing difficulty and cost

Therefore, the lubricating effects of several lubricating methods cannot achieve the characteristics of good lubricating effect and small power loss.

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