51results about How to "Avoid speed fluctuations" patented technology

The invention discloses an over-bending control method of a double-wheel drive single-rail conveyor. The distance between a front wheel and a rear wheel of the single-rail conveyor is larger than the turning radius of a curve; according to the four continuous stages, when the front wheel passes through the curve, the approach speed of the front wheel is first speed kept constant in the first stage and the second stage, the first speed is continued to be reduced to the third speed in the third stage, and the third speed is continued to be increased to the first speed in the fourth stage; the approach speed of the rear wheel is continued to be reduced to the second speed from the first speed in the first stage, the second speed of the rear wheel is continued to be increased to the first speed in the second stage, and the first speed is kept in the third stage and the fourth stage. Compared with the prior art, the speed control over the front wheel and the rear wheel conforms to the actual speed change rule of the front wheel and the rear wheel of the single-rail conveyor, the speed fluctuation caused by mismatching of the actual speed and the output speed is avoided, and it is ensured that the conveyor smoothly and stably runs in the turning process.

The invention belongs to the field of numerical control machining process optimization, and specifically discloses a winding machine process optimization method based on dual-code joint control and a winding machine, which includes the following steps: S1, obtaining the first processing code and winding machine structural parameters, and then performing Speed ​​estimation; S2. Identify the speed fluctuation interval in the estimated speed, and smooth the speed fluctuation interval to obtain the processing feed speed, and obtain the second processing code according to the processing feed speed; S3. Through the first processing code and The second processing code jointly controls the processing of parts by the winding machine to complete the process optimization of the winding machine. The invention is based on double-code joint control, directly smoothes the winding process from the speed level, avoids the speed fluctuation and the vibration of the machine tool, and improves the processing quality of the winding machine and the service life of the machine tool.

The invention discloses a motor servo controller. The motor servo controller comprises a servo motor, a standby power source, a soft startup and unloading circuit, a controllable rectification circuit connected to an AC power, a PWM inverter bridge and a DC-DC half-bridge soft switching high-frequency circuit; the DC-DC half-bridge soft switching high-frequency circuit comprises a low-voltage side half-bridge circuit, a high-frequency transformer and a high-voltage side half-bridge circuit; the low-voltage side half-bridge circuit is connected with the high-voltage side half-bridge circuit through a high-frequency transformer; the standby power source is connected with the low-voltage side half-bridge circuit; the high-voltage side half-bridge circuit is connected with the DC end of the PWM inverter bridge; the AC end of the PWM inverter bridge is connected with the servo motor; and the rectification circuit is connected with the DC end of the PWM inverter bridge. According to the motor servo controller, the standby power source can provide sufficient electric energy to the servo motor when the voltage of a power grid fluctuates, so that precision requirement of rotating speed control of a blade motor is guaranteed, and the working stability of a whole system is enhanced.

The invention relates to an applications-oriented control device of speed-regulating clutch and a control method thereof. The device comprises a sensor unit and an electronic speed-regulating controller electrically connected with the sensor unit. The electronic speed-regulating controller comprises a signal collecting module electrically connected with the output end of the sensor unit; a mode switching signal collecting module connected with a plurality of running modes; a CPU control module electrically connected with the output ends of the signal collecting module and the mode switching signal collecting module; a ratio servo valve base point regulating circuit electrically connected to the output end of the CPU control module; and a V-I converting and current amplifying circuit electrically connected with the output end accumulating the output end of the CPU control module and the output signal of the ratio servo valve base point regulating circuit. The output end of the V-I converting and current amplifying circuit drives a ratio servo valve and controls the actions of a clutch. By using a PID control policy, the invention has the advantages of adaptation to dead zone characteristics of different ratio servo valves and wide application range.