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A test method for motors under low temperature and low pressure environment

A low-temperature, low-voltage, testing method technology, applied in the direction of motor generator testing, etc., can solve problems such as not being able to meet motor testing, and achieve the effect of avoiding normal work and wide application prospects

Active Publication Date: 2017-09-19
HARBIN INST OF TECH
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Problems solved by technology

[0003] The purpose of the present invention is to provide a test method for motors under low temperature and low pressure environment, in order to solve the problem that the existing test methods for motors are mostly suitable for normal temperature and normal pressure conditions, and cannot meet the testing requirements for motors under low temperature and low pressure conditions

Method used

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  • A test method for motors under low temperature and low pressure environment
  • A test method for motors under low temperature and low pressure environment
  • A test method for motors under low temperature and low pressure environment

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specific Embodiment approach 1

[0029] Specific implementation mode one: combine figure 1 Shown, illustrate the technical scheme of this embodiment, its method step is:

[0030] Step 1: Select a motor with the same specifications as the tested motor 1, or a motor with the same synchronous speed as the tested motor 1 but with a power greater than the tested motor 1 as the accompanying motor 2; the output shaft of the tested motor 1 Connect with the output shaft of the accompanying motor 2 through the coupling 3, then put it into the high-low temperature and low-pressure test box 4 and fix it, and set the test temperature in the high-low temperature and low-pressure test box 4 at -150°C ~ -200°C Between, and the temperature test points are taken at equal intervals, and the air pressure value is set at less than 0.01Mpa, making it close to the pressure value of the vacuum environment in outer space;

[0031] Step 2: make the tested motor 1 work in the motor state, and the accompanying motor 2 work in the gener...

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Abstract

A test method of motor in a low -temperature and low -voltage environment.The present invention is a technical field for the characteristics of motor characteristics in low -temperature and low -voltage environments.Its method steps are: the measured motor and the accompanying motor are placed in the high -low temperature and low pressure experimental box; the motor was measured in the state of the motor, and the motor was worked in the generator state;Changed to 0.5 times the rated current; the biased loss of the motor of the motor in the state of the motor state; the motor was measured in the generator state, and the motor worked in the motor state;0.5 times the rated current; the strange losses of the measured motor of the motor in the generator status; combined with the above measurement parameters and calculating the average value of the measured motor load bruises.The present invention can measure the parameters of the motor in a low temperature and low voltage environment, and use a dual -machine -to -check method to test the motor in the environment, which has a wide range of application prospects.

Description

technical field [0001] The invention belongs to the technical field of motor characteristic testing under low temperature and low pressure environment. Background technique [0002] With the continuous exploration of human beings in the field of outer space, motors, which are essential executive and functional components in aerospace, will be more and more used in various extreme environments, such as low-temperature and low-pressure environments. Before using the motor, it must be adjusted The performance of the motor is tested accordingly to verify whether it can work normally in the extreme environment of low temperature and low pressure, and the performance meets the design requirements. However, most of the existing motor testing methods are suitable for normal temperature and pressure conditions, and cannot meet the testing requirements for motors under low temperature and low pressure conditions. Contents of the invention [0003] The purpose of the present inventi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/34
Inventor 邹继斌徐永向肖利军赵博王骞赵猛王宝超
Owner HARBIN INST OF TECH
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