五十年代我国不少矿井采用了捷克SKODA4米绞车,至今已使用了20余年,减速器齿轮大都出现了严重的麻点剥落,近年内需进行更换.我厂承担了此减速器齿轮的配制任务.其中主轴齿轮直径大,关键问题是要解决齿圈与轮芯的热装配合问题。在热装过程中齿圈的加热和膨胀要均匀,以防止产生不均匀应变和裂纹.现就已装配成活的 In the 1950s, many mines in our country used the Czech SKODA 4-meter winch and have been used for more than 20 years now. Most of the reducer gears have been exfoliated severely and have been replaced within recent years. Our factory undertook the task of making this reducer gear. One of the major diameter of the spindle gear, the key issue is to solve the ring gear and the wheel assembly with hot fit. In the process of hot-ring gear ring heating and expansion should be uniform, in order to prevent uneven strain and cracks have been assembled into a living