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Test device and method for determination of swivel resistance characteristics of railway vehicle bogie
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A technology of slewing resistance and test device, which is applied in the direction of railway vehicle testing, etc., can solve the problems of not being able to test the slewing characteristics of a single bogie, increase the test error, etc., and achieve the effect of simple and effective test device, overcoming measurement error, and low manufacturing cost.
Active Publication Date: 2016-07-20
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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However, this method cannot realize the slewing characteristic test of a single bogie, and the test system obtains the slewing characteristic curve of the bogie and the test platform as a whole. To obtain the slewing characteristic of the bogie, it needs to be different from the calibration curve of the test bench. Increased test error
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[0051] Taking the 380BL car as an example, the test system of the present invention is used to carry out the determination test of the characteristics of the bogie turning resistance. The test vehicle is in the ready state, the air spring is in the normal state, and the turning speed is 0.2° / s and 1° / s respectively. The characteristics of slewing resistance under the state of spring degassing, the slewing speed of 0.2° / s, and the slewing angle of 3.5°, and the influence of different slewing speeds and empty spring states on the slewing resistance coefficient are analyzed.
[0052] Referring to the provisions of EN14363, under the condition of 0.2° / sec slewing speed, the slewing resistance coefficient of the vehicle under normal running conditions should be , the slewing resistance coefficient of the air spring under the overcharged state and the gaseous state should be .
[0053] According to the specific implementation process above, push the bogie onto the test platform, ...
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Abstract
A test device for measuring the slewing resistance characteristics of a railway vehicle bogie, including a basic platform, four wheel set fixing devices, a gantry frame, a rotating shaft, a weight box, two longitudinal actuators, an upper force measuring platform, and a wheel set fixing device Fixed on the foundation platform, the fixture is installed on the top of the three-dimensional force measuring platform, which is composed of two concave grooves corresponding to the openings. The fixture is used to fix the wheel set of the bogie, and the three-dimensional force measuring platform is used to measure the axle of the wheel set. Heavy, the gantry frame is fixed above the foundation platform, the center of the beam of the gantry frame is connected to the rotating shaft, the lower end of the rotating shaft is connected to the weight box, and the lower end of the weight box is equipped with two upper force-measuring platforms, which are used to measure the turning movement of the bogie. The rotary force, two longitudinal actuators E are fixed on the side of the weight box. Using the above-mentioned device to test the swivel characteristics of the bogie, the bogie is fixed, the weight box is used to simulate the car body, and the weight box is driven by the actuator to simulate the swivel movement of the car body, and the swivel characteristic test of a single bogie is realized. , to overcome the measurement error caused by multi-stage force value transmission, high test accuracy, simple test device, and low manufacturing cost.
Description
technical field [0001] The invention relates to the field of rail vehicle detection, in particular to the field of a test system for the slewing characteristics of a rail vehicle bogie. Background technique [0002] Rail vehicles are developing rapidly towards high speed and heavy loads. Important performance indicators such as safety, stability and smoothness of train operation are extremely critical in the design and optimization of bogies. Among them, the turning resistance can reflect the curve passing ability of rail vehicles and is related to the wheel weight. There is a close relationship between the load shedding rate, so it is very important to study the slewing resistance moment for the design of bogie products. [0003] At present, there are not many bogie slewing characteristic test systems in China, mainly relying on the bogie parameter test bench for testing, such as the rail vehicle bogie test bench of Southwest Jiaotong University (patent number: ZL2006100226...
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