High-speed spinning cup internal flow field dynamic pressure wireless measuring device

Abstract

The invention discloses a high-speed spinning cup internal flow field dynamic pressure wireless measuring device. An electromotor is connected with a rotation shaft through a coupler. The rotation shaft is connected with a spinning cup firstly through threads and then through a split pin. A gasket installation hole is formed at the upper end of inner threads in the center of the spinning cup. A trigger hole is formed at the upper end of the gasket installation hole. A wireless sensor is installed in an installation hole at the upper end of the rotation shaft. The wireless sensor abuts against the lower surface of the trigger hole through a gasket. A trigger head of the wireless sensor penetrates through the trigger hole in the spinning cup to be flush with the upper surface of the trigger hole. A receiver is placed on a test bench. The wireless sensor is connected with the receiver in a wireless mode through the Wi-Fi. According to the high-speed spinning cup internal flow field dynamic pressure wireless measuring device, a high-speed spinning cup internal flow field is directly measured through the wireless sensor, and test data are true and reliable. Due to the fact that the trigger head of the wireless sensor is flush with the upper surface of the spinning cup, the structure of the high-speed spinning cup internal flow field will not be influenced. Signals received through the receiver are analyzed, the structure and the change mechanism of the high-speed spinning cup internal flow field are searched, and a test device and a measuring method are provided for follow-up research.

Description

technical field [0001] The invention relates to a flow field measurement device, in particular to a wireless measurement device for the dynamic pressure of the flow field in a high-speed rotor. Background technique [0002] As a traditional pillar industry of the national economy and an important livelihood industry, the textile industry has played an important role in prospering the market, absorbing employment, accelerating the process of urbanization, and promoting the harmonious development of society. At present, China's independent innovation, research, development and localization of high-end spinning equipment In terms of lack of core technology and independent intellectual property rights, some problems have not been solved, such as the structure and change mechanism of the flow field in the high-speed rotor have not been clearly understood. On this basis, combined with the idea of ​​segmenting the column-chain model primitives, the stress constitutive relationship...

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Problems solved by technology

[0002] As a traditional pillar industry of the national economy and an important livelihood industry, the textile industry has played an important role in prospering the market, absorbing employment, accelerating the process of urbanization, and promoting the harmonious development of society. At present, China's independent innovation, research, development and localization of high-end spinning equipment In terms of lack of core technology and independent intellectual property rights, some problems have not been solved, such as the structure and change mechanism of the flow field in the high-speed rotor have not been clearly understood. On this basis, combined with the idea of ​​segmenting the column-chain model primitives, the stress constitutive relationship of the flexible fiber model suitable for a large number of calculations is established, and through the reasonable selection of the gas phase turbulence model, the fiber gas flow force and collision force model, and the interphase interaction coupling mode, Establish a gas-fiber two-phase coupled flow model based on the Euler-Lagrangian method; use the modified high-speed rotor gas-fiber two-phase full three-dimensional flow field test bench to carry out two-phase flow model experiments, but due to the current There is no device to directly measure the dynamic pressure of the flow field in the high-speed rotor, so the correctness of the two-phase flow model experiment cannot be verified, and the structure and change mechanism of the flow field in the high-speed rotor have not been clearly understood

The internal space of the high-speed rotating device is small, and it is difficult to measure the dynamic pressure. The traditional wired pressure sensor measurement method is not applicable. It is necessary to solve the installation of the dynamic pressure sensor, and the signal transmission / conversion / reception problems

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