Clutches and brakes design and selection P7

Chia sẻ: Hung Nhat | Ngày: | Loại File: PDF | Số trang:25

0
53
lượt xem
5
download

Clutches and brakes design and selection P7

Mô tả tài liệu
  Download Vui lòng tải xuống để xem tài liệu đầy đủ

All three of these brake or clutch types have no wearing parts because the torque is developed from electromagnetic reactions rather than mechanical friction. Electronic controls and a rectifier to provide direct current are required, however, for their operation. They are, nevertheless, not usually referred to as electric brakes because that term had been reserved earlier to denote friction brakes which are electromagnetically activated: those in which an electric current through a coil induces a magnetic field that engages a shoe and drum, as pictured in Chapter 4. ...

Chủ đề:
Lưu

Nội dung Text: Clutches and brakes design and selection P7

Đồng bộ tài khoản