Speed change mechanism as well as driving system and vehicle using same

A technology of speed change mechanism and drive system, which is applied to mechanical equipment, transmission devices, gear transmission devices, etc., can solve the problems of occupying axial space and cannot use the wheel drive mode, and achieve the effect of reducing the axial space occupied

Active Publication Date: 2014-05-07
ZHENGZHOU YUTONG BUS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing transmission mechanism can realize simple two-speed shifting, the arrangement of the planetary row, planetary carrier gear, and ring gear still occupies a large amount of axial space, and cannot be used in the wheel-side drive mode.

Method used

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  • Speed change mechanism as well as driving system and vehicle using same

Examples

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Embodiment Construction

[0021] Examples of vehicles are figure 1 Shown: comprise car body, be provided with front wheel 8, rear wheel 5 and the drive system that drives rear wheel to rotate on the car body, this drive system is wheel edge drive system. The drive system includes a motor 7 and a speed change mechanism that are arranged in one-to-one correspondence with each rear wheel 5. The motors and speed change mechanisms corresponding to the two rear wheels have the same structure. Only one of the motors and the speed change mechanism will be described in detail here. The speed change mechanism includes The planetary row, the planetary row includes a sun gear 6 and a planetary carrier 13 equipped with a planetary wheel 12, the planetary carrier 13 is connected with the coaxial transmission of the corresponding rear wheel, and the sun gear 6 is connected with the motor shaft of the corresponding motor. The planetary row also includes a The ring gear 3 that moves in the axial direction and is consta...

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Abstract

The invention relates to a speed change mechanism as well as a driving system and a vehicle using the same. The speed change mechanism comprises a planet row, wherein the planet row comprises a planet carrier a with planet gear; the planet row further comprises a gear ring which moves in the axial direction and is in constant mesh transmission with the planet gear; the speed change mechanism further comprises a fixing gear and a planet carrier gear which are coaxially arranged with the gear ring and are in mesh transmission with the gear ring; the planet carrier gear is fixedly arranged on the planet carrier; the speed change mechanism further comprises a shifting mechanism for driving the gear ring to move axially so as to enable the gear ring to be separately meshed with the planet gear, the gear ring to be simultaneously meshed with the planet gear and the planet carrier gear, the gear ring to be simultaneously meshed with the planet gear and the fixing gear. The invention provides the speed change mechanism with a small axial occupied space, and the driving system and the vehicle using the speed change mechanism.

Description

technical field [0001] The invention relates to a speed change mechanism, a wheel drive system and a vehicle using the speed change mechanism. Background technique [0002] Facing the increasingly serious energy shortage problem, the application of pure electric vehicles will effectively solve the problem, and can achieve no pollution and zero emissions. At present, domestic pure electric vehicles are mostly used in the centralized drive mode, that is, a motor is used to provide power. The motor is directly connected to the axle reducer and controlled by the motor controller to realize the forward rotation, reverse rotation, and stop of the driving motor. Turn and wait for instructions, and then drive the whole vehicle. The control strategy of the centralized drive mode is relatively simple to implement, but the large drive motor structure and the layout of the axles will affect the vehicle space. Therefore, the distributed drive mode, that is, the wheel drive can effectiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/44F16H63/30
CPCF16H3/44F16H59/02F16H61/30F16H63/30F16H2061/301F16H2063/3093
Inventor 柳建新王印束
Owner ZHENGZHOU YUTONG BUS CO LTD
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