35results about How to "Easy installation, commissioning and maintenance" patented technology

The invention relates to a turbocharger. The turbocharger comprises a middle body. The two ends of the middle body are connected with an impeller and a turbine correspondingly through shafts, the outside of the impeller is covered with a pressure air shell, a shock absorber is installed on the lateral surface of a pressure air shell outlet, an air inlet is formed in one side of the impeller, and the turbine is provided with a turbine air inlet and a waste gas outlet. A turbine shell of the turbocharger is not provided with a bypass vent valve but the shock absorber, so that the knock and surge phenomena are avoided. Pressure is adjusted through a precise spring of the shock absorber sensitively and reliably, and installation, debugging and repairing are convenient. The turbocharger is adjusted through an adjusting screw when matched with an engine and debugged, operation is simple, accurate and reliable, and a technician of an engine factory assembly production line and a vehicle repairing technician can install and debug the turbocharger according to the power, displacement and revolution number of the engine to meet the ideal standards.

The invention discloses a float coal leveling and compacting mechanism and a using method thereof. The float coal leveling and compacting mechanism comprises a track device, wherein a chain transmission device powered by a two-in-one speed reducer is arranged in the track device and is in transmission connection with a walking wheel set mounted on guide tracks of the track device; a frame is mounted on the track device through the waking wheel set; a telescopic boom, a hydraulic station and a handheld control box are mounted on the frame; a lifting frame is mounted on the outer side of the top of the telescopic boom; a compacting wheel is mounted at the bottom of the lifting frame; scrapers are mounted on two sides of the compacting wheel; a PLC (programmable logic controller) system used for remote control is connected to outside of the handheld controller box. According to the float coal leveling and compacting mechanism and the using method thereof, the degree of automation is high, the adaptability is high, the labor intensity of manual scrapping and pressing of the float coal is reduced, the float coal treatment efficiency and effect are improved, and meanwhile, the negative influence of the float coal layer on production and environment is effectively eliminated.

The invention provides an elevator calling and registering system and an elevator. The system comprises a resistance unit, a power supply, a pull-down resistor and a registering unit; one end of the resistance unit is connected with the power supply, and the other end of the resistance unit is grounded through the pull-down resistor; the resistance unit comprises two or more resistors and button switches, all the resistors are connected with one another in series, and each resistor is connected with one button switch in parallel; each button switch corresponds to a floor, wherein the resistance value of the any one resistor does not equals to the resistance value of the other resistor; one input end of the registering unit is connected between the resistance unit and the pull-down resistor, is used for acquiring the input voltage of the pull-down resistor, and determines the elevator calling information of a user according to the acquired voltage value; and the elevator comprises at least one elevator calling and registering system. The elevator calling and registering system and the elevator have simple structures, are convenient to install and debug, use less wires and are low in cost.

The invention discloses an extra-high-voltage earthing switch with shunt-wound main circuit and arc extinguishing chamber for opening and closing an induction current. The extra-high-voltage earthing switch comprises an earthing switch body and an auxiliary circuit; the earthing switch body comprises a mounting base, a porcelain bottle, a main knife switch and a main knife switch operation mechanism; the bottom end of the main knife switch is mounted on the mounting base and connected with the main knife switch operation mechanism; a main movable contact is mounted at the top end of the main knife switch; the bottom end of the porcelain bottle is mounted on the mounting base while a main static contact is mounted at the top end; the auxiliary circuit comprises a movable arc contact, a static arc contact, an arc extinguishing chamber and an arc extinguishing chamber operation mechanism; the movable arc contact is fixed on the top of the main knife switch and insulated from the main knife switch; the movable arc contact is connected with one end of the arc extinguishing chamber through a wire while the other end of the arc extinguishing chamber is connected with the arc extinguishing chamber operation mechanism; and an automatic wire take-up apparatus is arranged between the wire and the arc extinguishing chamber, and used for taking up the wire which is wound between the movable arc contact and the static arc contact and is shrunk after switching off. The extra-high-voltage earthing switch has the advantages of simple structure, reliability, capacity of opening and closing the high-parameter induction current and the like.