33results about How to "Fast power delivery" patented technology

The invention discloses a distribution network construction and management system in villages, relating to an intelligent distribution network construction and management system in villages. The intelligent distribution network construction and management system in villages comprises a system master station, a communication network and a far-end field device, wherein the system master station comprises a communication unit, a main service system, a database platform, a remote meter reading unit, a monitoring unit, a management center and a customer service center; and the far-end field device comprises a distribution monitoring terminal, an intelligent residual current operated protective device, a reactive power compensating controller and an intelligent electric energy meter. The distribution network construction and management system provided by the invention can intelligently monitor and protect lines and equipment safety, automatically isolates and quickly restores faults, provides communication guarantee for power supply area all standing, precisely positions and navigates line equipment perambulation and service, and integrates various functions, thereby initiating a new mode for intelligent distribution network construction and management in villages and realizing the function of low-voltage remote meter reading and management of insulated intelligent village power grids with small volume, densely-covered points and short radius.

The invention discloses a laser processing method and system assisted by a water jet and a gas jet. According to the laser processing method, a laser beam is focused on the surface of a workpiece; a gas jet beam of which the diameter is greater than that of the focus point of the laser beam is coaxial with the laser beam; after the gas jet beam enters a cut slot, a water jet beam behind the gas jet beam also enters the cut slot. The center line of the water jet beam is in a plane formed by the center line of the laser beam and the cut slot; the intersection point of the center line of the water jet beam and the surface of the workpiece is 1-2 mm from the focus point of the laser beam. The system comprises a laser generating mechanism, a gas jet nozzle and a workbench, wherein the longitudinal center line of the jet hole of a water jet nozzle behind the gas jet nozzle is in the plane formed by the center line of the laser beam and the cut slot; a gas pump and a water pump are respectively connected with the gas jet nozzle and the water jet nozzle; water circulates through the water pump, the water jet nozzle, a working cavity above the workbench and a water tank. According to the invention, the water jet beam restrains gas expansion, reduces the heat effect of laser, takes away deposits, and improves the efficiency and quality of laser ablation, so that the invention achieves remarkable effects particularly in processing plates with thicknesses above 15 mm.

The invention relates to a power distributed type electric logistic vehicle. The electric logistic vehicle comprises a first carriage with a steering drive module, and a plurality of connection carriages with power-driven modules, wherein the first carriage is connected with the connection carriages through one electromagnetic force hook, and the adjacent two connection carriages are connected with the electromagnetic force hooks; the corresponding connection surface between the first carriage and the connection carriages, and the corresponding connection surfaces between the adjacent connection carriages separately adopt an arc surface structure. The electric logistic vehicle disclosed by the invention is simple in structure, high in transporting efficiency, large in pulling force and flexible to organize and steer, resources are saved, and the number of the connection carriages can be selected according to the quantity of the goods; besides, distributed type drive is adopted, so that the drive of each of the carriages is mutually independent, and interactive independent control is adopted.

The invention belongs to the technical field of internal combustion engines, and relates to a double-power engine with an adjustable hydraulic and mechanical power output ratio. A piston is connected with a connecting rod through a piston pin, the connecting rod is fixedly connected with a sliding block groove through a fastener, a sliding block is embedded in the sliding block groove, the lower portion of the sliding block groove is provided with a plunger and a guide rod, and the plunger, the guide rod and the sliding block groove move synchronically. The guide rod is inserted into a guide hole in a pump support and guides movement of the plunger. The connecting rod, the sliding block groove and the plunger move up and down in a reciprocating mode. A crank pin is embedded in the sliding block, and the upper portion of a plunger sleeve and the upper portion of the pump support are provided with oil inlet holes in a communication mode. A plunger stroke adjusting rack is parallel to a crank and arranged on one side of a hydraulic plunger pump. A rack support fixes the plunger stroke adjusting rack on the pump support, and the plunger stroke adjusting rack is meshed with a gear ring of the plunger sleeve. The double-power engine is simple in structure, reliable in principle, high in energy efficiency, cost-saving, fast in power transmission and environment-friendly.

The invention discloses a continuously-variable rocker type valve mechanism. The continuously-variable rocker type valve mechanism comprises a rocker, a cam, a sliding block assembly and a drive mechanism. The bottom side of one end of the rocker is in contact with a valve and capable of pushing the valve, and the bottom side of the other end of the rocker is supported by a hydraulic tappet; the cam is fixed to a cam shaft; the top of the sliding block assembly is in contact with the cam, and the bottom of the sliding block assembly is in contact with the rocker; the drive mechanism is capable of driving the sliding block assembly to move relative to the rocker so as to change the position of the sliding block assembly relative to the rocker and fixing the rocker and the sliding block assembly together; and the sliding block assembly changes relative to the rocker in position, correspondingly the contact position of the cam and the sliding block assembly and the contact position of the sliding block assembly and the rocker are changed, and thus the lift of the valve is changed. The continuously-variable rocker type valve mechanism has the beneficial effects that the power transmission route is short, the system rigidity is high, the movement inertia of all components is small, the vibration and noise are small, and general arrangement design of an engine is facilitated.

There is provided a method of moving an aircraft using an aircraft mover (10), preferably an aircraft tractor. The method comprises the steps of: a] accelerating the aircraft up to speed using one or more electric motors (16) drivable by at least a fast-discharge electrical-energy storage and supply device (20) during a high-power requirement of the aircraft mover (10); b] substantially maintaining a speed of the aircraft using a slow-discharge electrical-energy storage and supply device (22) during a low-power requirement of the aircraft mover (10); c] monitoring a charge status of the slow-discharge and fast-discharge energy storage and supply devices (20, 22) and when a predetermined charge status is reached, automatically charging the slow-discharge and/or fast-discharge energy storage and supply devices (20, 22) via an onboard electricity generator (14); and d] regeneratively recharging the slow-discharge and/or fast-discharge electricity-energy storage and supply devices (20, 22) during at least deceleration of the aircraft coupled to the aircraft mover (10). There is also provided a method of controlling the power distribution to the motors (16) within the aircraft mover (10), a dual electrical-energy storage and supply system (18) and controller (50) for implementing said method, a hybrid power delivery system for an aircraft mover incorporating the dual electrical-energy storage and supply system and controller, and an aircraft mover (10) using said systems.

The invention discloses a graphitization furnace and a graphitization production method for a synthetic graphite negative electrode material. The furnace body of the graphitization furnace is of a case structure with an open upper end; the open end of the furnace body is sealed with a furnace lid; conductive electrodes are installed on two opposite side walls of the furnace body; and a plurality of graphite current-conducting plates are distributed in the furnace body. The graphitization production method does not use a material container or material boat and directly places a raw material to be graphitized into a hearth for graphitization instead, so the charging amount of the material can be increased and output is increased by 25%; heat loss is small during heating, power consumption is greatly reduced, and unit power consumption of the graphitization furnace is reduced by at least 1000 kw/h compared with common furnaces; the periphery in the graphitization furnace is not filled with a thermal insulation material, so introduction of impurities in discharging is avoided, and product purity is high; concentrated guiding of flue gas for treatment is carried out, tailings are recycled, clean energy production is realized, and the degree of environmental protection is improved by 95% or above; and an air cooling system is utilized, the furnace body is simple in structure, and water resources are saved.

The invention provides a multi-direct-current feed-in power grid partition recovery method and system based on integer linear programming. Firstly, the short-circuit capacity condition of direct-current starting is ignored, a preliminary partition result is obtained, then partitions containing direct-current falling points are searched for and combined with other partitions to meet the direct-current starting condition, and the parallel sequence of the partitions in the recovery process is provided. Meanwhile, on the premise of ensuring the calculation time, a plurality of suboptimal solutionsare obtained by adding cut constraints, so that more choices are provided for partition decision making. The model and the algorithm provided by the embodiment of the invention have the advantages ofshort calculation time, capability of quickly recovering power supply, higher advantages, capability of reflecting community structure characteristics of a power network and capability of realizing integral control of divided regions.

The invention discloses a radial locking type over-load protection shaft which comprises a transmission shaft. The transmission shaft comprises a first shaft and a second hollow shaft, the first shaft is located in the second shaft and is concentric with the second shaft, at least one pair of hydraulic cylinders is arranged in the peripheral direction of the second shaft, an energy storage valve is connected between each pair of hydraulic cylinders, the hydraulic cylinders penetrate through a shaft wall of the second shaft, openings of the hydraulic cylinders face to the first shaft, ejecting blocks capable of sliding relative to cylinder bodies are arranged in the cylinder bodies of the hydraulic cylinders, and lugs butting against the ejecting blocks are arranged on the circumferential surface of the first shaft. The radial locking type over-load protection shaft can cut off power transmission during over-load so as to prevent the transmission shaft from being broken and simultaneously is good in reliability.

The invention discloses a motorcycle manipulation combined type clutch which comprises a main clutch portion and an auxiliary clutch portion. The main clutch portion comprises an upper pressing disc. An upper connecting plate is arranged on one end portion of the upper pressing disc. The upper connecting plate is connected with a lower pressing disc through a bolt. The bolt is sleeved with a compression spring. A driving friction plate and a driven friction plate are arranged between the upper pressing disc and the lower pressing disc. The driving friction plate comprises a plate body. More than two protruding plates extend from the outer side of the plate body. The auxiliary clutch portion comprises a driven gear. One end, close to the upper pressing disc, of the driven gear is connected with shoe blocks. Each shoe block comprises a head portion and a tail portion. The head portion of each shoe block is hinged to the driven gear through a hinge pin. An extension spring is connected between every two adjacent shoe blocks. The hinge pins are arranged on the driven gear in an eccentric mode. A friction block is fixedly connected to the outer side of each shoe block. The motorcycle manipulation combined type clutch can enhance power transmission of a vehicle and meanwhile improve the safety performance of the vehicle.

The invention discloses an all-electric injection device driven by planetary gears. The device is characterized in that a planetary gear set is arranged on an injection front plate, and the planetary gear set comprises a central gear, four motor gears, four driving motor sets and a lead screw assembly, the central gear and a lead screw nut are installed on the injection front plate in a shaft sleeve manner, and the four motor driving gears are evenly distributed on the periphery of the central gear and meshed with the central gear; and the four driving motors respectively drive the four gears to rotate by adopting a gear shaft structure manner, and each shaft is mounted on the injection front plate. According to the full-electric injection device, the consistent collaboration of power and speed of the multiple motors is improved in a planetary gear driving manner, the gears are adopted for intermediate power transmission, and therefore the structural strength and reliability are improved under the heavy load condition, and a power input manner of driving the lead screw nut through power and an internal shaft sleeve mounting manner are adopted, therefore, the compactness of the whole structure is improved, rapid power transmission is achieved, and the requirements of high injection force and high-power rapid injection are met.

The invention provides a method and a device for judging a fusing phase in a three-phase three-column type distribution transformer. The method comprises the following steps: a voltage monitoring terminal monitors low-voltage side voltage values of a power grid system in a plurality of time periods, determines voltage amplitude change information corresponding to a phase A, a phase B and a phase Cin the plurality of time periods, and further determines a phase corresponding to a voltage value with the minimum absolute value in the phase A, the phase B and the phase C; and further, according to the phase corresponding to the voltage value with the minimum absolute value in the phase A, the phase B and the phase C in the plurality of time periods, the fusing phase of the distribution transformer in the power grid system can be determined. By adopting the method for judging the fusing phase in the three-phase three-column type distribution transformer provided by the embodiment of the invention, the fusing phase of the three-phase three-column type distribution transformer can be simply, conveniently, quickly and effectively judged, so that electrical operation personnel can quicklyjudge accident reasons, power transmission can be quickly recovered, and the influence on a power distribution network system is reduced.