Automobile automatic free wheel hub device and automobile
A hub, automatic technology, applied in the direction of one-way clutches, clutches, mechanical equipment, etc., can solve the problems of increasing reactive power loss and electromagnetic load, increasing energy loss, reducing the life of motor inverter electronic components, etc., to reduce the drive Energy consumption, good inheritance, and the effect of ensuring fuel economy or power economy
Active Publication Date: 2015-12-23
JILIN UNIV
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- Abstract
- Description
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- Application Information
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Problems solved by technology
At this stage, four-wheel drive electric vehicles, especially those driven by four-wheel independent wheel or hub motors, often use a single-axis dual-motor drive when cruising with a medium load, and the other two motors follow the drive control strategy to save power consumption , but for a permanent magnet motor with relatively high drive efficiency, it will lead to the generation of induced electromotive force. Under the action of leakage current, compared with asynchronous excitation motor, it will increase reactive power loss and electromagnetic load, and reduce the electronic components of motor inverter At the same time of device life, additional driving energy loss is added
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[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.
[0031] Such as figure 1 As shown, the present invention provides an automatic free hub device for a vehicle. The automatic free hub device for a vehicle is mainly composed of three transmission parts, which are respectively a half shaft transmission part, a shift pin transmission part and a one-way clutch transmission part, It includes a half shaft 103 , an inner shell 203 , a transmission sleeve 102 , a displacement pin 202 , a one-way clutch 301 and a hub 201 .
[0032] Such as figure 2 As shown, the half shaft 103 is composed of three sections of journals, which are the leftmost optical axis, the middle helical spline screw and the right spline shaft, and the journals increase in order from left to right. The half shaft 103 cooperates with the leftmost optical axis thro...
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The invention discloses an automobile automatic free wheel hub device. The device comprises a half shaft, an inner shell, a transmission sleeve, a shifting pin, a one-way clutch and a wheel hub. The half shaft is matched with the transmission sleeve through a spiral spline. The transmission sleeve is connected with the wheel hub through the one-way clutch. Under a four-wheel drive mode, the half shaft drives the transmission sleeve to drive the wheel hub to rotate, and the half shaft and the wheel hub are locked together through the shifting pin at the same time. Under a two-wheel drive mode, the half shaft and the wheel hub can be unlocked automatically. The invention further provides an automobile using the automatic free wheel hub device. According to the device, new structures are added on the basis of a traditional free wheel hub structure to conduct design in cooperation of machinery, the machining and modification process is simple, and the modification cost is low; by means of the cooperation of the spline, a threaded rod and the transmission sleeve and the characteristic of unidirectional power transfer of the one-way clutch, the switching between the four-wheel drive mode and the two-wheel drive mode is achieved, the switching between the four-wheel drive mode and the two-wheel drive mode can be achieved automatically, an operation rod or an electric-control knob does not need to be controlled manually, and four-wheel drive is achieved at particular times .
Description
technical field [0001] The invention relates to an automobile driving system, in particular to a novel automatic free wheel hub for a vehicle and an automobile which realize the separation and combination of a half shaft and a wheel hub. Background technique [0002] The free wheel hub is also called the shaft clutch or the wheel locker. Its main function is to freely realize the switching between four-wheel drive and two-wheel drive according to the actual working conditions of the car, reducing unnecessary wear and saving fuel. The fuel economy of the two-wheel drive is better, and the four-wheel drive has strong passability and good stability. At present, four-wheel drive is mostly used in models such as SUVs and off-road vehicles, while most ordinary passenger cars still use two-wheel drive. Therefore, free wheels are more used in models such as off-road vehicles, while ordinary Passenger car applications are less. Most of the traditional free hubs are manual free hubs...
Claims
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IPC IPC(8): F16D41/00
Inventor 王军年王凯雷北海孙玉泽田浩赵金祥
Owner JILIN UNIV