Differential pressure valve, bogie suspension system, railway vehicle and differential pressure adjusting method
A differential pressure valve and differential pressure technology, which is applied in the fields of differential pressure valve, bogie suspension system, rail vehicle and differential pressure adjustment, and can solve problems such as inability to actively adjust
Active Publication Date: 2020-12-08
CRRC QINGDAO SIFANG CO LTD
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Problems solved by technology
For this reason, the present invention proposes an active adjustment differential pressure valve to solve the problem that the existing differential pressure valve cannot actively adjust between a pair of air springs
Method used
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Embodiment Construction
[0046] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.
[0047] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right" , "vertical", "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing this The embodiments and simplified descriptions of the invention do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed a...
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The invention relates to the technical field of railway vehicles, in particular to a differential pressure valve, a bogie suspension system, a railway vehicle and a differential pressure adjusting method. The differential pressure valve comprises a pair of valve cavities including a first valve cavity and a second valve cavity, a pair of air holes, a pair of one-way valves and a pair of driving mechanisms. The first valve cavity and the second valve cavity are respectively communicated with air chambers, the air chamber of the first valve cavity is communicated with the second valve cavity, and the air chamber of the second valve cavity is communicated with the first valve cavity; the pair of air holes are respectively communicated with the pair of valve cavities; the pair of one-way valves are movably assembled in the pair of valve cavities respectively; and the driving mechanisms are connected with the one-way valves respectively and used for driving the one-way valves to move in thecorresponding valve cavities respectively, so that the communication state between the air holes connected to the same valve cavities and the air chambers can be switched between two-way communication and one-way communication. The differential pressure valve can play a role in actively adjusting the pressure difference between a pair of air springs, so that a bogie suspension system can activelyadjust the tilting state of a vehicle body.
Description
technical field [0001] The invention relates to the technical field of rail vehicles, in particular to a differential pressure valve, a bogie suspension system, a rail vehicle and a differential pressure adjustment method. Background technique [0002] As the speed of rail vehicles continues to increase, air springs are increasingly used in rail vehicle bogie suspension systems. When a rail vehicle passes through a curved line, due to the influence of centrifugal force or other reasons, the unbalanced load of the vehicle is caused. In order to reduce the impact of the unbalanced load of the vehicle, a tilting mechanism is usually installed in the bogie suspension system. The main characteristics of the tilting mechanism are: When the vehicle passes through a curve, the elastic action of a pair of air springs will produce a tilting effect on the vehicle body, thereby reducing the impact of the unbalanced load caused by the centrifugal acceleration of the vehicle and improving...
Claims
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Login to View More IPC IPC(8): B61F5/24
CPCB61F5/245
Inventor 杨欣薛源冯永华周君锋公衍军
Owner CRRC QINGDAO SIFANG CO LTD