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Hollow axle bridge structure and light wheel pair

A hollow shaft, lightweight technology, applied in the field of rail vehicles, can solve the problems of the difficulty of reducing the weight of the bogie frame and the weight of the wheelset with unsprung mass, so as to reduce the fatigue load, reduce the mass, and improve the axle load. force effect

Active Publication Date: 2016-03-23
ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, it is very difficult to reduce the weight of the bogie frame, and it is even more difficult to reduce the weight of the wheelset that belongs to the unsprung mass.

Method used

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  • Hollow axle bridge structure and light wheel pair
  • Hollow axle bridge structure and light wheel pair
  • Hollow axle bridge structure and light wheel pair

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] A lightweight wheel set such as figure 1 As shown, the wheel set basically has a left-right symmetrical structure. The hub 3 of the first wheel 1 cooperates with the outer ring 13 of the bearing 6 , and the outer ring 13 of the bearing 6 is pressed against both sides by the transmission disc 7 and the inner end cover 14 . The screw 5 is used for fastening the transmission disc 7 and the hub 3 , and the screw 15 is used for fastening the inner end cover 14 and the hub 3 . Therefore, the first wheel 1 forms an integral body with the outer ring 13 of the bearing 6, the transmission disc 7, and the inner end cover 14 when running.

[0039] Such as figure 1 As shown, the two ends of the shaft bridge 19 cooperate with the inner ring 12 of the bearing 6 , and the inner ring 12 of the bearing 6 is pressed against both sides by the gland 10 and the retaining ring 16 . The retaining ring 16 is in contact with the shoulder 17 of the shaft bridge 19, the screw 11 connects the gl...

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PUM

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Abstract

The invention discloses a light wheel pair. The wheel pair comprises an axle bridge. The axle bridge is arranged in a hub hole of a first wheel and a hub hole of a second wheel through corresponding bearings. The axle bridge is of a hollow tubular structure. A torsion rod is arranged in the axle bridge in a sleeved manner. Transmission discs are arranged at the outer ends of wheel hubs. The inner end faces of the transmission discs and the end of the torsion rod are fixedly connected, and synchronous rotation of the left wheel and the right wheel is achieved. According to the wheel pair, axle stress is reduced, and the weight is reduced by about 20%-30% compared with a traditional wheel pair. Therefore, the speed of a high speed train can be possibly promoted to be further increased, and line loss reducing and energy saving and emission reducing can be facilitated.

Description

technical field [0001] The invention relates to a hollow axle bridge structure and a lightweight wheel set, which belongs to the field of rail vehicles, and is especially suitable for rail vehicles such as EMUs, passenger cars, and urban rails. Background technique [0002] Lightweight bogies are the constant pursuit of designers. With the development of rolling stock in my country, especially high-speed EMUs, the weight reduction of bogies has reached a bottleneck. Among them, it is very difficult to reduce the weight of the bogie frame, and it is even more difficult to reduce the weight of the wheelset that belongs to the unsprung mass. Especially for high-speed EMUs, if one wants to break through the existing speed limit, one of the keys is to design a more lightweight wheel set assembly. In addition, lightweight wheel set components are also of great significance to reducing line damage and energy saving and emission reduction. [0003] Under the existing wheel set str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61F5/50B60B35/12
CPCB60B35/122B61F5/50Y02T10/86
Inventor 邓小星陈喜红陈国胜李冠军陈清明陶功安曾艳梅张建全向阳钟晓波
Owner ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD
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