| 摘要 |
A harmonic drive adds flanges to involute profiled gears to prevent jamming. The flanges maintain a separation distance between flexible gear teeth (9) and rigid gear teeth (10) preventing the flexible gear (4) from jamming. The device in minimal construction is made with five layers of sheet material of which the inner most layer is the gear layer (23), then two flange layers (22) sandwich the gear layer, and then another two layers (13) make up the gearbox housing. The flexible gear (4) is fitted with a plurality of pins (15) to constrain it from rotating in undesirable modes of operation. The improved harmonic drive gearbox has advantage of high holding torque, near zero backlash, and in minimal construction, is made from five layers of sheet material cut with tools such as laser, stamping machine, water jet, plasma torch or photo etching. |
