Railway Express Freight Car Bogie

A technology for express freight cars and bogies, which is applied in the directions of bogies, railway car body parts, devices for lateral relative movement between the underframe and the bogies, etc. problems, to achieve the effect of improving bearing capacity, increasing strength and reducing stress

Active Publication Date: 2018-11-30
CRRC YANGTZE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bogie adopts a boom-type shaker structure, and the bolster is located at the lower part of the frame, which is not conducive to the arrangement of the lower limit of the bogie, and the risk of the bolster falling off the track is relatively high. The shock absorber makes the longitudinal positioning stiffness of the bogie too large, the curve passing performance is not good, and the use of wearing parts increases the maintenance cost

Method used

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  • Railway Express Freight Car Bogie
  • Railway Express Freight Car Bogie
  • Railway Express Freight Car Bogie

Examples

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Embodiment Construction

[0058] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0059] Such as figure 1 , figure 2 The railway express freight car bogie shown includes a frame 200, four sets of rotary arm axle box positioning devices 100, two sets of wheel sets 500, a bolster 300, and a set of basic braking devices 600.

[0060] Such as image 3 As shown, the frame 200 includes a pair of side beams 240 with a double-web box structure, a pair of cross beams 250 with a round steel tube structure, and a pair of arc-shaped longitudinal beams 280. Combine Figure 4 As shown, the side beam 240 includes a side beam double web 241, a side beam upper cover plate 242, and a side beam lower cover plate 243. In this embodiment, the middle part of the side beam 240 is a downwardly concave U-shaped cavity 244. The bottom plane 244a of the U-shaped cavity 244 is welded with a secondary rubber stack installation platform 245, and the secondary r...

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Abstract

The invention discloses a railway manifest bogie which comprises a framework, four sets of tumbler type axle box positioning devices, two sets of wheel pairs, a swing bolster and a set of basic braking devices. A U-shaped cavity in the middle of a side beam of the framework is provided with a two-line rubber-metal pad installation platform and provides installation space for the swing bolster and the two-line rubber-metal pad, it is ensured that the size of the manifest bogie and a car body connector can meet the using requirement of an existing wagon; the swing bolster adopts a two-line rubber-metal pad installation base of a forge piece for replacing a welding structure with actual stress exceeding allowable stress, and the strength of the portion is improved; by adopting an axle box elastic suspension system, high-frequency impact of the car during high-speed running is effectively reduced; by additionally arranging a series of rubber springs with the bearing and vibration reduction functions, the perpendicular rigidity of the heavy car working condition bogie is improved, and the variable rigidity of the framework bogie axle box body is achieved.

Description

Technical field [0001] The invention belongs to the technical field of rail vehicle freight cars, and particularly relates to a railway express freight freight car bogie. Background technique [0002] Heavy load and fast speed are the development direction of railway freight cars. According to the development of domestic railway freight transportation and the requirements of railway technical policies, it is necessary to develop a fast railway freight car with operating speed of 140km / h~160km / h and axle load not greater than 18t. As an important component of fast railway freight cars, fast freight car bogies directly affect the running speed and load capacity of vehicles. [0003] At present, the frame-type fast freight car bogies mainly include fast freight car bogies with rocking platform structure, Linoer shock absorber positioning, fast freight car bogies without rocking platform bolster top-mounted rubber stack guide column positioning, and non-rocking platform bolster top-mou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61F5/52B61F5/30B61F5/08
CPCB61F5/08B61F5/301B61F5/305B61F5/308B61F5/52
Inventor 徐勇刘凤伟姜瑞金王宝磊肖光毅李梓铭张良威刘爱文黎巧能江荷燕
Owner CRRC YANGTZE CO LTD
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