7results about How to "Affect operating efficiency" patented technology

The utility model relates to the technical field of locomotive handrails, and discloses a locomotive handrail, which comprises a flange plate, an elbow pipe and a handrail pipe, and is characterized in that at least one pin hole I radially penetrating through a central hole of the flange plate is formed in the peripheral surface of the flange plate; mounting holes which are annularly distributed by taking the center of the flange plate as a circle center are axially formed; the elbow pipe is provided with a first end and a second end, the first end is a sleeve end connected with the center hole of the flange plate in an inserted mode, and the sleeve end is provided with a second pin hole corresponding to the first pin hole; the elbow pipe further comprises anti-disengaging pins, the anti-disengaging pins with the corresponding number are sequentially inserted into the first pin holes and the second pin holes, the outer ends of the first pin holes are welded and sealed, and connection of the elbow pipe and the flange plate is achieved. According to the scheme, a pin connection mode is adopted to replace a traditional rigid welding mode, the risk that fatigue cracks are prone to being caused by the welding position and rapidly expand is eliminated, the structural strength of the handrail is improved, the service life of the handrail is prolonged, and the situation that crew members are injured due to crack damage of the handrail and the operation efficiency of a locomotive is affected by handrail maintenance can be avoided.

The utility model discloses a heat radiation structure of a high-power motor. The heat radiation structure comprises a main body structure. The main body structure comprises a shell, a front cover and a rear cover, the front cover and the rear cover are installed at the two ends of the shell respectively, a fixing base is arranged at the bottom of the shell, and a through hole for airflow to pass through is formed in the front cover; comprising a heat dissipation mechanism arranged on a rear cover and used for heat dissipation of a motor, the heat dissipation mechanism comprises a sleeve arranged in the center of the rear cover, and a heat dissipation fan is installed in the sleeve; the auxiliary mechanism is used for assisting the heat dissipation mechanism in heat dissipation; the auxiliary mechanism comprises a heat conduction ring attached to the inner wall of the shell, and fins are arranged on the inner wall of the heat conduction ring. The device is simple in structure and convenient to use, and through cooperation of the heat dissipation mechanism and the auxiliary mechanism, good heat dissipation capability can be provided during operation of the high-power motor, so that influence of heat accumulation in the motor on the operation efficiency of the motor is avoided, and normal operation of the motor is ensured.

This invention discloses an adaptive parameter optimization control method and system for frequency converters under voltage sags, relating to the field of frequency converter parameter optimization control technology. It solves the technical problems in existing technologies where it is impossible to simulate voltage sag environments for frequency converters, thus hindering targeted parameter control and increasing the impact of voltage sags. Specifically, it includes a voltage sag prediction unit that predicts voltage sags in the operating environment of the frequency converter; a voltage sag parameter analysis unit that analyzes the impact of voltage sags on frequency converter parameters and sets control strategies for frequency converter parameters based on the analysis; and an optimization identification control unit that simulates voltage sag environments for the frequency converter and infers the impact of voltage sag parameters on the frequency converter during operation based on the simulation.

This invention discloses a highly efficient plant protection machine for controlling major pests of cowpeas, belonging to the field of plant protection equipment technology. It includes a housing; the top of the housing is equipped with a blower assembly for blowing off diseased, withered leaves and insect-infested flowers from cowpeas; one end of the housing is equipped with a sweeping assembly for cleaning diseased and withered leaves from furrows and ridges; and the interior of the housing is equipped with a suction and crushing assembly for collecting the diseased and withered leaves after sweeping. In this invention, the blower can blow diseased and withered leaves attached to cowpea plants into furrows and ridges. Because the blower is fixedly connected to a vertical plate by a second spring, it generates a certain vibration amplitude during startup, causing it to swing. When the swinging blower touches the first springs on both sides, a reaction force is generated, causing it to return to its original position. This cyclical change in the blower's angle allows the airflow to cover a wider area of ​​the cowpea plant.

This application provides a brush assembly and a motor, relating to the field of brush technology, aiming to solve the problem that current high-current brushes cannot be adapted to small commutators. The brush assembly includes: a brush body and a brush braid; the brush body has a wide end and a narrow end connected together, the narrow end slidingly contacting the commutator, and the width of the narrow end is smaller than the width of the wide end in the circumferential direction of the commutator; the wide end is connected to a brush braid with a preset length. When the narrow end is completely worn, the brush braid keeps the wide end of the brush body spaced apart from the commutator. A thinner narrow end is provided at the end of the brush body to accommodate small commutators; a thicker brush braid is provided at the wide end of the brush body to carry high current; at the same time, the thicker brush braid is designed to a preset length to ensure that the wide end of the brush body does not contact the commutator after the narrow end is completely worn, preventing the brush body from contacting the commutator too wide, causing current circulation, overheating, and sparking that could damage the commutator, while also preventing the brush braid from entering the commutator gap.

The utility model discloses an efficient reaction kettle for concrete additive production, and relates to the field of reaction kettles, the efficient reaction kettle comprises a kettle body and a jacket formed on the outer wall of the kettle body, an interlayer is arranged between the kettle body and the jacket, the center of the bottom end of the kettle body is provided with a discharge port penetrating to the lower part of the jacket, and the bottom end of the kettle body is provided with a discharge port. A valve mechanism is arranged in the discharge port, and a power mechanism for driving the valve mechanism to operate is arranged on the discharge port; the valve mechanism comprises a sliding valve, the sliding valve is of a hollow structure with an upper opening and a lower opening, and the sliding valve is connected to an inner cavity of the discharging opening in an up-down sliding mode; and the sliding valve which moves upwards once is used for discharging materials in the kettle body. According to the utility model, by arranging the valve mechanism, after the reaction of the reaction kettle is finished and materials are discharged, the power mechanism is started to drive the valve mechanism to move up and down, so that condensed water in the interlayer can be discharged, and the influence of the condensed water on the subsequent operation efficiency of the reaction kettle is avoided.

The utility model discloses a high-speed lubrication cylindrical roller bearing which comprises an outer ring, an inner ring and a plurality of rollers, a rolling cavity is formed between the outer ring and the inner ring, the plurality of rollers are movably arranged in the rolling cavity, flanges are arranged at two ends of the outer peripheral wall of the inner ring, and the inner side walls of the two flanges and the outer peripheral wall of the inner ring are combined to form a roller path for the rollers to roll. Oil grooves are formed in the connecting positions of the inner side walls of the two flanges and the outer circumferential wall of the inner ring, a plurality of oil inlet holes are annularly formed in the inner ring, every two oil inlet holes are formed in the two ends of the inner ring respectively, the starting ends of the oil inlet holes communicate with the oil grooves, and the tail ends of the oil inlet holes communicate to the inner circumferential wall of the inner ring; the starting ends of the oil outlet holes communicate with the outer circumferential wall of the inner ring and communicate with the rolling cavity, and the tail ends of the oil outlet holes communicate with the inner circumferential wall of the inner ring. The problems that in the prior art, when the bearing runs at a high speed, an external oil injection tool is difficult to inject lubricating grease into the bearing, so that the bearing lacks oil, and the running efficiency of the bearing is affected are solved.