6FC5210-0DF24-2AA0
起重機(jī)運(yùn)行機(jī)構(gòu)一般只用四個(gè)主動(dòng)和從動(dòng)車輪,如果起重量很大,常用增加車輪的辦法來降低輪壓。當(dāng)車輪超過四個(gè)時(shí),必須采用鉸接均衡車架裝置,使起重機(jī)的載荷均勻地分布在各車輪上,其運(yùn)行機(jī)構(gòu)由三個(gè)基本獨(dú)立的拖動(dòng)系統(tǒng)組成:
- 大車拖動(dòng)系統(tǒng):拖動(dòng)整臺(tái)起重機(jī)順著車間做“橫向”運(yùn)動(dòng)(以操作者的坐向?yàn)闇?zhǔn))。
- 小車拖動(dòng)系統(tǒng):拖動(dòng)吊鉤及重物順著橋架做“縱向”運(yùn)動(dòng)。
- 吊鉤拖動(dòng)系統(tǒng):拖動(dòng)重物作吊起或放下的上,下運(yùn)動(dòng)。
橋式起重機(jī)在大車拖動(dòng)以及小車拖動(dòng)方面對(duì)于變頻器的控制要求比較低,而吊鉤拖動(dòng)系統(tǒng)由于提升機(jī)構(gòu)的運(yùn)轉(zhuǎn)具有大慣性,四象限運(yùn)行的特點(diǎn),與其他傳動(dòng)機(jī)械相比,對(duì)變頻器有著更為苛刻的安全和性能上的要求。株洲某專業(yè)起重設(shè)備廠商,其測(cè)試配置如下:
- 電機(jī)型號(hào):YZR200L-8(繞線電機(jī)),
- 功率:15Kw
- 額定數(shù)入電壓:380V
- 額定輸入電流:34.6A:
- 電機(jī)極數(shù):8極
- 額定頻率:50HZ
- 額定轉(zhuǎn)速:712rpm
- 編碼器:無
- 抱閘:采取電磁閥方式,使用3相380V電源控制
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