3results about How to "Simple and reliable control process" patented technology

The application discloses a brake gear control method and device of a hydraulic transmission, and belongs to the technical field of hydraulic transmission. The hydraulic transmission comprises an input shaft, an output shaft, four planetary rows and a plurality of brakes. The control method comprises the following steps: in response to a brake gear instruction, the second brake and the third brake are controlled to be combined at the same time; under the brake gear, the sun gear, the planet carrier and the ring gear of the second planetary row and the third planetary row are locked, and then the sun gear, the planet carrier and the ring gear of the fourth planetary row are locked through mechanical connection, so as to lock the output shaft; at the same time, the sun gear, the planet carrier and the ring gear of the first planetary row are in a freely rotatable state, so as to allow the power from the input shaft to idle in the first planetary row. Through specific brake combination control, the application can rigidly lock the output shaft under the engine idle speed state, and fundamentally solves the safety hidden trouble and operation difficulty problem caused by the no-load gear phenomenon in the prior art.

This invention relates to a flexible rod-type magnetic wheel adsorption robot for internal inspection of valves and containers. It solves the technical problems of existing rigid robots based on pipe wall structures used for pipeline inspection, which have low degrees of freedom, difficulty adapting to pipes of different diameters, and difficulty navigating two consecutive bends inside flange gate valves. The robot includes forelimbs, a torso, and hindlimbs. The torso includes a flexible rod, an upper pull wire, a lower pull wire, a left pull wire, a right pull wire, and multiple joints. Each joint includes a joint drive device, a left magnetic wheel, and a right magnetic wheel. A main shaft motor in the forelimb drives each joint through the flexible rod. The upper and lower pull wires pass through each joint, with their front ends connected to the forward pitch winding wheel of the forelimb and their rear ends connected to the backward pitch winding wheel of the hindlimb. The left and right pull wires pass through each joint, with their rear ends connected to the deflection winding wheel in the hindlimb. This invention is widely used for the inspection of flange gate valves and pipelines.

The utility model discloses a control circuit for reducing standby power consumption of a resonance circuit and a power factor correction circuit and a liquid crystal display television. The control circuit comprises an LLC resonance circuit, a first integrated circuit and a second integrated circuit, the LLC resonant circuit is connected with a seventh pin of the first integrated circuit through a second capacitor, a fourth capacitor is arranged between a sixth pin and a twelfth pin of the first integrated circuit, and a third pin of the first integrated circuit is connected with the second integrated circuit through a third field effect transistor; the circuit is simple in structure, low in cost and high in practicability.