Electromagnetic shielding high-speed long shaft
A technology of electromagnetic shielding and long axis, which is applied in the fields of electromagnetic shielding high-speed long-axis transmission and electromagnetic shielding high-speed long-axis, which can solve the problems of poor shielding efficiency and large vibration of the long-axis through the wall, so as to improve the performance, shorten the design length, Good attenuation effect of magnetic field
Pending Publication Date: 2020-08-07
安徽精科检测技术有限公司
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Problems solved by technology
[0003] The present invention aims to provide an electromagnetic shielding high-speed long shaft, which can achieve good shielding performance under the long-distance, high-speed and high-torque operation conditions in the electromagnetic compatibility dynamometer test, and solve the problems of large vibration and poor shielding performance of the traditional wall-penetrating long shaft
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[0027] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0028] see Figure 1-9 As shown, an electromagnetic shielding high-speed long shaft includes a long shaft casing composed of two-stage shaft sleeves 10. One end of the shaft sleeve 10 is supported by an end support seat 7, and the other end of the shaft sleeve 10 is supported by an intermediate support seat 20 and an end support seat. Supported by the upper supporting base 7 and supported by three supporting bases, the rigidity of the long shaft shell is improved. The rotating shaft 11 and the high-speed bearing 17 supporti...
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The invention discloses an electromagnetic shielding high-speed long shaft which can solve the problems that in a traditional electromagnetic compatibility power measurement test, the electromagneticshielding efficiency of a through-wall long shaft is poor, resonance and large noise of a shielding wall and the long shaft are caused by closed rigid connection of the traditional through-wall long shaft and a darkroom metal shielding wall, and the high-speed transmission performance and the service life of the through-wall long shaft are affected. The long shaft comprises two sections of shaft sleeves, an internal rotating shaft, a supporting seat for supporting the shaft sleeves, a base for mounting the shaft sleeves and the supporting seat, an insulating shock pad of the base, a shieldingstructure for the long-shaft external shaft sleeve and the internal rotating shaft, and a shielding structure for the shaft sleeves and a shielding wall body. The electromagnetic shielding high-speedlong shaft can keep good shielding efficiency under the conditions of 15,000 rpm and 1,000 Nm high-speed heavy load, vibration of the long shaft and resonance of a shielding wall are improved, the useperformance of the long shaft is improved, and the service life of the long shaft is prolonged.
Description
technical field [0001] The invention relates to an electromagnetic shielding high-speed long shaft transmission in an electromagnetic compatibility dynamometer test, in particular to an electromagnetic shielding high-speed long shaft, which belongs to the field of high-speed long shafts. Background technique [0002] In the EMC dynamometer test, it is necessary to transmit the power outside the anechoic chamber to the test piece in the anechoic chamber through the high-speed long axis that meets the electromagnetic shielding effect. Traditional ball cage universal couplings are difficult to achieve long-distance and high-speed power transmission. Long-distance and high-speed power transmission can be improved by using carbon fiber long-axis transmission, but the cost is high, and it cannot take into account the transmission of large torque and compact structure, resulting in large openings through the wall of the metal shielding wall of the anechoic chamber, and poor shieldi...
Claims
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Login to View More IPC IPC(8): G01R1/18G01R31/00
CPCG01R1/18G01R31/001
Inventor 陈春水张余斌布图格奇
Owner 安徽精科检测技术有限公司