Low-floor railway vehicle bogie

A rail vehicle and bogie technology, which is applied in the direction of the bogie, the device for lateral relative movement between the chassis and the bogie, and the components of the railway car body. , Super statically indeterminate bearing unevenness and other problems, to improve the overall bearing state, reduce stress, and improve the effect of stress level

Active Publication Date: 2015-05-13
CRRC QINGDAO SIFANG CO LTD
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Problems solved by technology

[0004] With the above-mentioned four-point hanging method, the load of the driving device composed of the motor and the gearbox all acts on the cantilever outside the frame, the local stress is high, and the overall bearing capacity of the frame is weak
In addition, the structure of the four-point suspension will have the problem of unev

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  • Low-floor railway vehicle bogie
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[0028] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:

[0029] Such as figure 1 As shown, the present invention provides a low-floor rail vehicle bogie, which includes a frame 1, an axle bridge 2, a primary suspension 3, a secondary suspension 4, a wheel 5, and a motor gear box 6. There are two motor gearbox components 6 which are respectively hung on the outside of both sides of frame 1, such as image 3 As shown, the motor gearbox composition 6 includes a traction motor 7 in the middle and gearboxes 8 at both ends. One traction motor 7 drives two gearboxes 8 at the same time, the wheels 5 are four independent wheels, and the four gearboxes 8 drive four respectively. The wheel 5 rotates.

[0030] Such as figure 1 with figure 2 As shown, the frame 1 includes two side beams 9, two cross beams 10, and two longitudinal beams 11. The center of the two side beams 9 respectively protrudes out of a cantilever bea...

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Abstract

The invention relates to a low-floor railway vehicle bogie which comprises a framework, axles, a primary suspension, a secondary suspension, wheels and motor gear cases. The framework comprises side beams, cross beams and girders. Each cantilever beam protrudes outwards from the center of the corresponding side beam. The motor gear cases are hung on the outer sides of the side beams. The two sides of each cantilever beam are provided with upper hanging seats. The girder located on the same side of the corresponding cantilever beam is provided with a lower hanging seat. An upper part composed of the motor gear cases is provided with two upper installation seats relative to the two upper hanging seats. A side part composed of the motor gear cases is provided with a lower installation seat relative to the lower hanging seat. The upper installation seats and the upper hanging seats are fixedly connected through first connecting structures. The lower installation seat and the lower hanging seat are fixedly connected through a second connecting structure. A three-point hanging mode is adopted in the bogie, stress of the cantilever beams can be effectively reduced, the overall bearing state of the framework is improved, and the use space of a passenger chamber in a vehicle can be effectively increased.

Description

Technical field [0001] The invention relates to a bogie, in particular to a low-floor rail vehicle bogie, belonging to the technical field of rail vehicle manufacturing. Background technique [0002] In order to achieve a low-floor vehicle, the traction drive system of a traditional bogie cannot be installed between the wheels and must be re-arranged. Generally, longitudinal installation or other methods are adopted. The longitudinal traction motor-gearbox unit is suspended on the outside of the frame, and for this reason, a cantilever structure for hanging the motor must be provided on the outside of the frame. [0003] In the Chinese patent "100% low-floor light rail vehicle independent wheel power bogie" with the patent number 201010520644.5, a bogie is disclosed, including a frame, axle bridge composition, primary spring, secondary spring, secondary vertical and horizontal Shock absorber, double tie rod traction mechanism, elastic frame suspension motor longitudinal drive mech...

Claims

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Application Information

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IPC IPC(8): B61F5/00B61F5/02B61F5/30
CPCB61F5/00B61F5/02B61F5/30
Inventor 虞大联曲文强王万静刘韶庆邓小军梁建英
Owner CRRC QINGDAO SIFANG CO LTD
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