A new rotary drive for revolving table. At present, the motor and the reducer in the driving mechanism are all using the vertical centralized drive, which makes the horizontal reducer and the horizontal motor in an unreasonable working condition. It is very difficult to lubricate, repair and install the reducer and motor, increase the noise and reduce the service life. The utility model provides a driving mechanism for adding a universal drive shaft and a pair of bevel gears so as to make the motor and the reducer relative to the turntable a reasonable horizontal transmission position, which facilitates installation, maintenance and lubrication, and reduces the noise and improves the service life of the motor and the reducer.
The working principle of the rotary actuator is designed and manufactured, Rotary Actuators the test system is built up and the two piezoelectric rotary actuators are compared and tested. The results show that, under the excitation of 8 Hz square wave signal, the rotational step distance of the asymmetric piezoelectric actuator is greater than the variable friction rotary actuator; When the driving voltage is $number V, the return rate of the asymmetric and variable friction piezoelectric actuators is 73.19%, 65.67%. Under the square wave excitation of the V and 8 Hz, the linear residual square and the repeatability standard difference between the asymmetric and variable friction piezoelectric actuators are 0.031, 0.069 and 0.011 and 0.063 respectively. Rotary Actuators The test results show that the output step and the return rate of the asymmetric drive are higher than that of the variable friction actuator, which has high linearity and repeatability.
Variable friction inertia piezoelectric rotary actuator working principle. The symmetrical square wave signal is applied to the piezoelectric double wafer. When the voltage signal is positive, the piezoelectric element is stretched and the force is exerted vertically downward on the main body, the positive pressure of the main body on the contact surface increases, the friction between the main body and the contact surface increases, the friction force is greater than the driving forces and the main body is stationary. When the voltage signal is negative, Rotary Actuators the piezoelectric element is shortened and the force is exerted vertically upward along the inclined plane, the positive pressure of the main body on the contact surface decreases, the friction force between the main body and the contact surface decreases, the friction is less than the driving force, and the main movement . When the piezoelectric two-chip oscillator is opposed to the arrangement along the central axis, the torque is generated to form a directional rotational motion. In this paper, Rotary Actuators the variable friction inertia piezoelectric rotary drive α is 70 °.