Testing device and method for operation resistance of rail train

A technology for running resistance and rail trains, applied in measuring devices, force/torque/work measuring instruments, measuring forces, etc., can solve the problems of the absence of railroad trains, lack of test data, and difficulty in accurately measuring the size of the resistance, achieving Accurate effect

Active Publication Date: 2018-03-27
CRRC QINGDAO SIFANG CO LTD
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  • Abstract
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Problems solved by technology

[0004] However, there is no test method for the low-speed running resistance of rail trains in the prior art, and the low-speed running resistance of rail trains is generally obtained through simulation calculations, lacking actual test data
In addition, when rail trains run at low speeds, the resistance they experience is relatively small, and the existing force sensor structure is also difficult to accurately measure the magnitude of the resistance

Method used

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  • Testing device and method for operation resistance of rail train
  • Testing device and method for operation resistance of rail train

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Embodiment Construction

[0029] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] The "several" mentioned in this article refers to a number with an indeterminate number, usually more than two; and when "several" is used to indicate the number of certain components, it does not mean that the number of these components is the same.

[0031] Words such as "first" and "second" mentioned herein are only used to describe two or more structures or components with the same or similar structure, and do not represent any special limitation on the order.

[0032] Please refer to Figure 1-2 , figure 1 A schematic structural view of a specific embodiment of a test device for rail train running resistance provided by the present invention, figure 2 for figure 1 A state diagram of the test setup in use. ...

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Abstract

The invention discloses a testing device and method for operation resistance of a rail train. The testing device includes a first hook, a force measurement part and a second hook. The first hook can be connected with a traction train. The second hook can be connected to a to-be-detected train. The force measurement part includes a force measurement cylinder and a plurality of strain sensors arranged on the peripheral wall of the force measurement cylinder. Two ends of the force measurement cylinder are connected with the first hook and the second hook respectively. The testing device also includes a data processing part in signal connection with the strain sensors and capable of receiving strain values measured by the strain sensors so as to calculate the operation resistance. According tothe invention, the force measurement part adopts a combined structure composed of the force measurement cylinder and the strain sensors, the wall thickness of the force measurement cylinder is comparatively small and thus the strain sensibility is improved, so that low speed operation resistance of the rail train can be acquired more accurately.

Description

technical field [0001] The invention relates to the technical field of rail train resistance testing, in particular to a test device and method for rail train running resistance. Background technique [0002] The running resistance of a rail train is closely related to its power and economy, and is one of the basic technical parameters of a rail train, and the test of running resistance is also one of the important items in the vehicle model test of a rail train. [0003] The running resistance of rail trains is further divided into low-speed running resistance and high-speed running resistance, among which the low-speed running resistance can better reflect the inherent resistance of rail trains. [0004] However, there is no test method for the low-speed running resistance of rail trains in the prior art, and the low-speed running resistance of rail trains is generally obtained through simulation calculations, lacking actual test data. In addition, when rail trains run at...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00G01L1/22
CPCG01L1/22G01L5/0028
Inventor 王伟华马丽英任晖张志强丁叁叁
Owner CRRC QINGDAO SIFANG CO LTD
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