Loading device for fatigue test of railway freight car bogie side frame

A railway freight car and fatigue test technology, applied in the field of railway freight cars, can solve the problems of uneven vertical loading, poor flatness of the casting surface of the spring cap, and the washer not working hard.

Active Publication Date: 2021-06-22
CRRC QIQIHAR ROLLING CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Fourth, due to the poor flatness of the casting surface of the spring cap, using several equal-height washers as the load-bearing unit will inevitably cause uneven vertical loading caused by the lack of effort of some washers

Method used

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  • Loading device for fatigue test of railway freight car bogie side frame
  • Loading device for fatigue test of railway freight car bogie side frame
  • Loading device for fatigue test of railway freight car bogie side frame

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Embodiment Construction

[0035] In order to make those skilled in the art better understand the solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] In this paper, terms such as "upper, lower, inner, outer" are established based on the positional relationship shown in the accompanying drawings, and the corresponding positional relationship may also change according to different drawings. It is understood to be an absolute limitation on the scope of protection; moreover, relational terms such as "first" and "second" etc. are only used to distinguish one element of the same name from another, and do not necessarily require or Any such actual relationship or order between these components is implied.

[0037] Please refer to figure 1 , figure 2 , figure 1A schematic diagram of the overall structure of a fatigue test loading device for a railway freight car bogie side frame disc...

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Abstract

The invention discloses a loading device for fatigue test of railway freight car bogie side frame, which comprises a vertical loading seat, a loading beam assembly, a support seat assembly and a load equalizing support device; the loading beam assembly includes a loading beam and an associated For the lateral pretensioning device and longitudinal pretensioning device of the loading beam, the loading beam is provided with interfaces for vertical, lateral and longitudinal actuators; the support seat assembly is used to support the side frame of the railway freight car bogie; The load equalizing support device is arranged on the spring bearing platform of the side frame, and a vertical loading transition beam is arranged above it; the vertical loading seat is provided with legs located on the inside and outside of the side frame, and the loading beam is provided with The holes corresponding to the legs. The loading device can simulate the support state of the side frame during operation, and realize the application of vertical, lateral and torsional loads. It has certain adaptability to different types of side frames and has a certain vertical self-balancing load sharing function.

Description

technical field [0001] The invention relates to the technical field of railway freight cars, in particular to a loading device used for fatigue testing of side frames of railway freight car bogies. Background technique [0002] There are many types of railway freight car bogies, of which the technology is more mature and can be broadly divided into two types: three-piece bogies (non-elastic positioning of axle boxes, elastic positioning of bolsters) and welded frame bogies (elastic positioning of axle boxes) , overall frame), the three-piece bogie is widely used in the world because of its relatively simple structure and large axle load, which can adapt to the line environment of most countries. [0003] The three-piece bogie is mainly assembled from three parts: bolster, side frame and wheelset. The side frame is the key hub for transferring the body load from the bolster to the wheelset. The state is more complicated. Under normal working conditions, it is affected by ver...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00G01M17/08
CPCG01M13/00G01M17/08
Inventor 郇龙飞王占河王鑫梁昊
Owner CRRC QIQIHAR ROLLING CO LTD
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