Low-floor electric axle assembly

An electric axle and low floor technology, applied in the field of new energy vehicle drive, can solve the problems affecting the aisle width, large axial space, and large space occupation of passenger cars with low floors, so as to ensure the lubrication and cooling effect, improve the cooling level, space saving effect

Active Publication Date: 2018-10-12
南京清研易为新能源动力有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This arrangement has two stages of deceleration, and uses bevel gears or hypoid gears, which has low transmission efficiency and takes up a lot of space. The braking system of this type of low-floor electric axle is placed in the bevel gear reduction mechanism and the wheel side deceleration Between the boxes, it also occupies a large axial space, which affects the width of the low-floor part, that is, the passenger car aisle

Method used

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  • Low-floor electric axle assembly
  • Low-floor electric axle assembly
  • Low-floor electric axle assembly

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Embodiment Construction

[0038] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments and directional words described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be des...

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Abstract

The invention provides a low-floor electric axle assembly. The low-floor electric axle assembly comprises an axle shell, hub motors, a planetary gear reduction gearbox, a wheel hub, braking systems, aC-shaped beam and a suspension system. The mechanical installation of the suspension system is compatible with a traditional axle. The layout form of the braking system, the hub motors and the planetary gear reduction gearbox can widen the width of a bus lane. According to the low-floor electric axle assembly, the motor is coaxially arranged on the axis of a wheel in a rim, the first-stage transmission of a cylindrical gear, a bevel gear or a hypoid gear is removed, the planetary gear reduction gearbox with a variable structure is adopted to ensure high transmission ratio and transmission efficiency, and the braking systems are arranged at both ends of the axle inside the motor, the space at both ends of the axle can be fully used to form the low-floor electric axle assembly.

Description

technical field [0001] The invention relates to the technical field of driving new energy vehicles, in particular to a low-floor electric bridge assembly. Background technique [0002] Such as figure 1 What is shown is the centralized drive mode of traditional electric passenger cars often used in the prior art. The power system includes a drive motor, a reduction box (or a transmission), a transmission shaft and a drive axle, and there are defects such as long transmission chains and relatively low transmission efficiency, and These components occupy most of the space of the vehicle longitudinal beams, which affect the overall layout and lightweight, and lead to a higher floor of the bus when applied to the bus. [0003] In the prior art, the low-floor electric axle of passenger cars adopts a distributed drive mode, and the wheel side or hub motor is commonly used, and the two drive motors are symmetrically arranged on both sides of the axle housing, but the motor axis and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K7/00B60K17/04B60B35/00B60B35/12
CPCB60B35/001B60B35/12B60K7/0007B60K17/046B60K2007/0092H02K9/19B60K2007/0038B60Y2200/1432B60B35/002B60G9/00B60G17/08B60G2202/242B60K17/14B60T1/065F16H1/28F16H57/0476F16H57/0486F16H2001/2881H02K7/006H02K7/083H02K7/102H02K7/116
Inventor 李建秋胡家毅徐梁飞蔡炳坤李航
Owner 南京清研易为新能源动力有限责任公司
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