Electric transmission device

An electric drive and brake technology, which is applied in the power plant, motion deposition, transportation and packaging, etc., can solve the problems of increasing the volume of the electric drive device, and achieve the effect of compact structure, simplified box structure and light weight.

Inactive Publication Date: 2012-02-22
SHANGHAI ZHONGKE SHENJIANG ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Apparently, the diameter of the drive motor is limited by two transverse axes, and the length of the transverse axis is equal to the sum of the lengths of the two drive motors, which increases the size of the electric drive

Method used

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Embodiment Construction

[0024] In order to understand the technical content of the present invention more clearly, the following examples are given in detail. It should be understood that the examples are only used to illustrate the present invention, not to limit the present invention.

[0025] figure 1 It is a system block diagram of the electric transmission device involved in the embodiment of the present invention. refer to figure 1 , the electric transmission device includes: a drive motor 1, which is used to drive the vehicle, and includes a hollow drive motor rotor shaft 1a. The direct drive speed change mechanism 2 is used for transforming the torque characteristics of the drive motor 1 . The composite braking mechanism 3 is used for longitudinal braking of the vehicle.

[0026] The steering motor 4, which is used to drive the steering of the vehicle, includes a hollow steering motor rotor shaft 4a. The steering speed change mechanism 5 is used for transforming the torque characteristic...

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Abstract

The invention provides an electric transmission device, which comprises a driving motor (1), a non-stop speed-change mechanism (2), a compound braking mechanism (3), a steering motor (4), a steering speed-change mechanism (5), a non-stop differential planet row (7), a steering differential planet row (8), a right side transmission (9), a left side transmission (10), a speed-change main shaft (12) and a transverse shaft (13), wherein the driving motor (1) comprises a hollow driving motor rotor shaft (1a); the steering motor (2) comprises a hollow steering motor rotor shaft (4a); and the speed-change main shaft (12) is a hollow shaft. The steering motor and the driving motor are arranged coaxially, an equiaxial differential is replaced by an ordinary planet row, bilaterally symmetrical output is realized by matching side transmission of different transmission ratios on both sides, and a zero shaft, a corresponding fixed shaft transmission gear and a support structure are eliminated, so that the box body structure is simplified, and the electric transmission device has a compact structure, light weight and low cost and is convenient to arrange.

Description

technical field [0001] The invention relates to an electric transmission device, in particular to an electric transmission device with a compact structure. Background technique [0002] Electric transmissions for wheeled or tracked vehicles should provide technical solutions for optimum weight, volume and cost combined with high mobility of the vehicle. In particular, the electric drive should have a high power density, be compact and occupy as little space as possible for the overall vehicle layout. [0003] For example, U.S. Patents US6953408 B2, US2007 / 0012505 A1 and US7326141 B2 disclose three electric transmissions for tracked vehicles, which include drive motors and parking brakes symmetrically arranged on both sides of the car body, and one or two lateral or longitudinal A controllable differential steering mechanism composed of a steering motor, a transmission gear, and two planetary rows arranged outside the cylindrical contour formed by the two drive motors. Obvi...

Claims

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Application Information

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IPC IPC(8): B60K7/00B62D11/16
Inventor 夏承钢孙江明
Owner SHANGHAI ZHONGKE SHENJIANG ELECTRIC VEHICLE
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