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Dimension calculation method of pneumatic hydraulic or pneumatic tension compensation device

A technology of compensation device and calculation method, which is applied to overhead lines and other directions, can solve the problems of compensation accuracy error and high gas pressure, and achieve the effect of avoiding compensation accuracy error.

Pending Publication Date: 2022-03-22
西安克诺尔轨道交通科技有限公司
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Problems solved by technology

[0005] Due to the relatively high gas pressure used by the compensation device and the wide range of ambient temperature changes, there is a certain gap between the actual gas change and the ideal gas change during the operation of the compensation device. Therefore, the calculation and determination of the size of the compensation device by using the ideal gas state equation above, in actual use Compensation accuracy will produce a certain error

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  • Dimension calculation method of pneumatic hydraulic or pneumatic tension compensation device
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  • Dimension calculation method of pneumatic hydraulic or pneumatic tension compensation device

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Embodiment Construction

[0055] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0056] A calculation method for the structural size of a pneumatic tension compensation device, the design steps are as follows:

[0057] (1) According to the working tension requirement, first determine the diameter D1 of the piston cylinder, the diameter d1 of the piston rod and the wall thickness of the cylinder:

[0058] A Contact Suspension: Piston cylinder diameter D1 is 70mm for working tension of 15KN and below, 80mm or 90mm for D1 above 15KN, cylinder wall thickness is 5mm, and piston rod diameter D1 is 25mm;

[0059] B soft span: the working tension 6KN and below piston cylinder diameter D1 value is 45mm, piston rod diameter d1 value is 18mm; 6KN to 10KN cyl...

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Abstract

The invention discloses a size calculation method of a pneumatic hydraulic type or pneumatic type tension compensation device, namely point-by-point calculation correction is carried out on the closed-loop size of the compensation device, namely the size of a cylinder barrel, by utilizing a real gaseous equation point-by-point calculation method. According to the method, in the design calculation of the compensation device, the size of the piston cylinder of the compensation device is calculated and revised point by point, the compensation precision error of the compensation device caused by unreasonable size can be effectively avoided, and the effect is more obvious especially in cold regions in winter in the north and regions with high temperature in summer in the Yangtze river basin. By adopting the method, the design compensation precision of the compensation device can be controlled within 1.5%.

Description

technical field [0001] The invention relates to the technical field of tension compensation devices, in particular to a size calculation method for a pneumatic hydraulic or pneumatic tension automatic compensation device. Background technique [0002] In the power supply catenary of electrified railway, under any climatic conditions, the overhead cable catenary and contact wire must always be in a state of tension to ensure the normal operation of the power supply catenary. In the electrified railway catenary power supply system, in order to ensure the normal operation of the train, the good current intake of the current receiving bow requires that the catenary cable and the catenary wire must have a certain tension. However, due to the influence of thermal expansion and contraction, the length of catenary cable and contact wire changes with the change of ambient temperature, which affects the change of tension. Therefore, tension compensation device is widely used in power ...

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Application Information

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IPC IPC(8): B60M1/26
CPCB60M1/26
Inventor 赵永莉
Owner 西安克诺尔轨道交通科技有限公司
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