一、概述为了适应我国电机制造工业迅速发展的需要,早在六十年代初期,上海电机制造行业在伟大领袖毛主席关于“独立自主,自力更生”方针指引下,试制成功恒压刷握。其结构式如图1所示。所谓“恒压刷握”,是指刷握的弹簧施加于电刷上的压力,不致因 I. Overview In order to meet the needs of the rapid development of China’s motor manufacturing industry, as early as the early 1960s, Shanghai Electrical Machinery Manufacturing Co., Ltd. succeeded in trial-production of a constant-voltage brush holder under the guideline of “independent and self-reliance” by Chairman Mao. The structural formula shown in Figure 1. The so-called “constant pressure brush holder” refers to the brush handle the spring pressure applied to the brush, not cause