5results about How to "Commutation smooth" patented technology

The invention relates to a gas nano purifier. The gas nano purifier comprises a mounting seat, the gas storage bin is installed on the installation base and used for storing clean gas, the side wall of the upper portion of the gas storage bin extends upwards to form an installation plate, and a gas path through hole is formed in the middle of the installation plate; the gas-water separator is mounted on the mounting plate and is used for carrying out primary purification on to-be-cleaned gas; the adsorption tower is mounted on the mounting plate and is used for carrying out secondary purification on the to-be-cleaned gas; gas to be cleaned sequentially flows through the gas-water separator and the adsorption tower and then enters the gas storage bin; the adsorption tower is communicated with the gas storage bin through an exhaust pipe; and the exhaust pipe penetrates through the gas path through hole. Through the arrangement, the installation operation is greatly simplified, and the integrity and the space utilization rate of equipment are improved.

The invention provides a reversing buffer control method and system for the piston stroke of a hydraulic drive compressor, and relates to the technical field of buffer control. Dynamic pressure signals of a hydraulic cavity and stroke signals of a piston during piston reversing are collected, and feature information representing pressure impact and oscillation and stroke deviation information are extracted; determining wear level data through trend analysis and calculating a coupling coefficient of the two, performing pressure fluctuation suppression by combining the feature information, the coupling coefficient and wavelet analysis to obtain an initial adjustment instruction, and generating a buffer compensation value based on the wear level data so as to optimize the initial adjustment instruction; according to the method, the target adjusting instruction for controlling the opening speed and the opening degree of the valve element of the bidirectional hydraulic lock is obtained, piston reversing pressure fluctuation suppression and buffer compensation accurate adaptation can be achieved, stable action of the valve element is guaranteed, and the stability and the adaptability of reversing buffer control of the hydraulic drive compressor are improved.

The application discloses a power reversing control method of a power transmission, wherein when the gearbox performs a reversing action, the gearbox sequentially passes through a deceleration control stage, a reverse starting control stage, a rapid pressure increasing stage and a clutch rapid combination stage; in the deceleration control stage, a continuous fluctuation pressure is given to the selected direction clutch to reduce the vehicle speed to n2, and then the pressure of the selected clutch is kept until the vehicle speed is reduced to n3; in the reverse starting control stage, the pressure of the selected direction clutch is increased until the vehicle speed reaches n4; in the rapid pressure increasing stage, the pressure of the selected direction clutch is continuously increased until the vehicle speed is increased to n0; in the clutch rapid combination stage, the pressure in the selected direction clutch is increased at the maximum speed until the pressure reaches the working pressure. In this way, the reverse fluctuation damping is generated by the engine joint control and the fluctuation pressure of the reverse clutch in the deceleration process of the vehicle, and the speed braking effect is good; through the closed loop control of the speed and the pressure, the clutch pressure increasing speed can be automatically adjusted.

The utility model relates to a hydraulic system for improving the reliability of frequent positive and negative rotation of a gear motor. The hydraulic system comprises a positive and negative rotation motor, a reversing valve, a secondary overflow valve and an oil way system for connecting all parts, a first internal oil way and a second internal oil way are arranged in the secondary overflow valve, the first internal oil way is communicated with the second internal oil way, and preset pressure threshold values of the first internal oil way and the second internal oil way are different. The gear motor solves the technical problems that in the prior art, a hydraulic system is large in impact, key parts are prone to being damaged, and the reliability of a whole machine is poor in the frequent forward and reverse rotation process of the gear motor.

The application discloses a shellfish processing device for automatically grading, shelling and separating shellfish meat, which comprises a rack, a grading mechanism, a shelling mechanism, a driving mechanism and an electric control system. The grading mechanism is detachably installed on the top of the rack and is used for grading the shellfish according to the size and fumigating the shellfish with high-temperature steam during the grading process. The shelling mechanism is installed in the rack and is used for shelling the graded shellfish to realize the separation of the shell and the meat through a rotating-swinging compound motion. The driving mechanism is used for driving the shelling mechanism to realize the rotating-swinging compound motion. The electric control system is used for controlling the grading mechanism, the driving mechanism and the shelling mechanism. The above mechanical system can realize the automatic grading and shelling of the shellfish without additional operations and instruments.