6results about How to "Good inheritance" patented technology

The utility model discloses a pyrograph mechanical arm, which relates to the field of pyrograph equipment, and comprises a base, a mounting seat, a large arm assembly, a small arm assembly and a mechanical claw assembly, and the mounting seat is arranged on the base and can rotate around an axis extending along the vertical direction relative to the base; the large arm assembly is arranged on the upper mounting side of the mounting base and comprises a first large arm, a second large arm, a first driving part and a second driving part, the first large arm and the second large arm are distributed at intervals in the first direction and connected, the first driving part is in driving connection with the first large arm, and the second driving part is in driving connection with the second large arm; the small arm assembly comprises a first small arm and a second small arm, the first small arm is connected with the first large arm, and the second small arm is connected with the second large arm; the mechanical claw assembly is provided with an electric soldering pen and is in threaded connection with the small arm assembly; therefore, the pyrography mechanical arm has three degrees of freedom, can control the electric pyrography pen to perform pyrography operation, is high in operability and flexibility, greatly improves the pyrography efficiency, and is suitable for pyrography non-perpetual culture teaching.

This utility model discloses a set of chopsticks for learning and game training, and its auxiliary tools. The chopsticks include a fixed chopstick and a movable chopstick. The rear end of the fixed chopstick is fixed between the user's thumb and forefinger, and the front end of the fixed chopstick rests against the concave part of the first joint of the ring finger. The movable chopstick has a stop protrusion about 1 / 3 of its rear end. The lower edge of the stop protrusion includes a slanted clamping part, which is pressed by the user's thumb to form a pivot for the movable chopstick to rotate relative to the fixed chopstick. The user can operate the movable chopstick by pressing it with their index and middle fingers. This design guides the user to master the correct chopstick grip and force application. The auxiliary tool includes several rings of varying sizes, which can help users understand, learn, and inherit chopstick culture in an entertaining way.

The present application relates to a kind of feeding positioning blank-drawing machine, belong to ceramic blank-drawing technical field.It includes: pulling mechanism, blank-drawing mechanism, lifting mechanism, power transmission mechanism, shell, control panel, support mechanism and connecting mechanism;Shell is the shell structure, pulling mechanism, lifting mechanism, power transmission mechanism, support mechanism and connecting mechanism are all arranged in the shell interior, blank-drawing mechanism is arranged at the top of shell, control panel is arranged on the side wall of shell, connecting mechanism is connected with pulling mechanism, the inner wall of top of shell and power transmission mechanism, the above and below of pulling mechanism correspondingly set blank-drawing mechanism and lifting mechanism, control panel is connected with pulling mechanism, lifting mechanism and power transmission mechanism by wire.The present application can help beginner to determine the center of body, can continuously come out mud, facilitate beginner operation, strengthen the stability of body, enhance the degree of control of body in the process of pulling embryo for beginner, further improve blank-drawing efficiency, enhance self-confidence.

The invention is suitable for the field of hydraulic structure design of water conservancy and hydropower engineering, and provides a gravity dam economic section automatic design method and system based on an intelligent optimization algorithm, and the method comprises the steps: inputting design parameters, and initializing an algorithm population; performing stability calculation and constraint verification on each candidate section in the population; the candidate sections are evaluated through a preset fitness function, the function applies a great penalty value to the sections which do not meet the stability constraint, and the volumes of the sections which meet the constraint are directly used as fitness values; the population is iteratively evolved by using an intelligent optimization algorithm, and individuals with better fitness values are continuously screened out; and finally outputting an economic section which meets all safety constraints and has the minimum concrete volume. According to the method, a complex constrained engineering optimization problem is converted into an unconstrained optimization problem, automation and intellectualization of gravity dam section design are achieved, the design efficiency is greatly improved, and the engineering amount of a dam body can be remarkably reduced on the premise that safety is guaranteed.

The invention relates to a method and device for debugging air volume balance of a pellet solid-solid heat exchange dust removal system, and belongs to the technical field of industrial ventilation and dust removal. S2, measuring the air volume of a reference tuyere; s3, the resistance of the main guide pipeline is adjusted; s4, performing equal-ratio imbalance correction on the branch pipelines; and S5, iterative fine tuning and verification are carried out. According to the method, calibration of the leading pipeline and the equal-ratio imbalance algorithm are organically combined, a complete, efficient and accurate air volume balance debugging solution is formed, and many defects in the prior art are effectively overcome.

The invention discloses a multi-objective optimization train driving parking control method, which comprises the following steps of: performing preprocessing based on train real-time operation data to obtain time sequence data; the time sequence data comprises a time sequence state, control instruction data and operation environment data of the train; calculating resultant force according to the time sequence data, establishing a dynamic model, and setting constraint conditions and evaluation indexes; the kinetic model comprises a control curve and a constant, and the evaluation indexes comprise an accurate parking constraint index, an energy consumption index and a stability index; setting an objective function according to the evaluation indexes, optimizing the objective function by using a multi-objective optimization algorithm based on improved NSGA-II, and obtaining an elite individual (an optimal speed control scheme under multi-objective tradeoff); and judging whether the elite individuals meet expectation or not according to the constraint conditions and the evaluation indexes, if so, outputting a planning control curve to the elite individuals, and otherwise, adjusting the control instruction data to update the elite individuals. According to the invention, the parking precision and the system stability of the train in a complex environment are improved.