In order to lighten the burden of health care workers and help people with Lower limb insufficiency to do rehabilitation training, this paper designs a model na
In order to enhance the bearing capacity of non-circular gear pair, the non-circular gear pair with double generating angles is proposed based on the design idea of unsymmetrical gear with double pres
In recent years, punching technology of our country is developing fast. The proportion of hand feeding punching processing has gradually been replaced by automa