Papers by Author: Wen Qin Xu

Abstract: The paper covers an automatic feeding device for melting tin-ingot, which has advantages of improving working conditions, high automation, stable operation, good reliability, and thus has more applied value.

Abstract: The paper introduces an improvement in technology of processing piston of air conditioning compressor in automobile, and methods of designing, manufacturing, and testing a special machine by which the processing quality and efficiency are enhanced.

Abstract: The mounting eccentric error is one of the largest error sources for circular grating angle sensors (CGASs). To improve the measuring accuracy of CGASs, one error compensation method based on mounting eccentricity is proposed in this paper. The mounting eccentricity and measuring error of CGASs was modeled after analysis. Six joints mounted with CGASs were used in the eccentric error compensation experiment. The rotation error of the joints was calibrated with a coordinate measuring machine and a gauge block. Then with the calibration data, the parameters of the eccentric error compensation model were calculated. The experimental result shows that after error compensation the rotation angle errors of the joints are reduced about 58 to 543 times.

Abstract: A practical flexible friction transmission is presented here, which has a stable operation, a high reliability, a low maintenance cost and a high value in use.

Abstract: A digital image detecting system that employs a touch-sensitive monitor as operating center is stated here. With touch-screen and easy-to-use measuring software, its efficiency has been greatly improved compared to the traditional manual image instrument. Its basic structure and measuring principle are presented first, and then the software’s interface and the calibration method, and finally the fundamental principle of the two key algorithms for image detecting: sampling and marking.

Abstract: The conventional technology about how to segmental machining and welding form the straight-drawing pole in automobile has been changed by a new technology reamed by a tube blank, which improves its mechanical performance and appearance quality. Material is saved and working efficiency is raised as well.

Abstract: The electromechanical professional have been recommended to be one of the ten urgently needed in the 21st century. According to problems existed in teaching, reforming ideas and its implementation are put forward to provide an operable, referencable, and propagable mode for the personnel training scheme.

Abstract: A new radial plunger pump is given here, which is installed with a roller between the plunger and the stator. When in working order, the roller is purely rolling on the inner face of the stator, reducing the friction force and effectively avoiding the combustion of friction pair. The force on the roller and the plunger of the static pressure supporting cylinder pair are studied here and some theoretical evidences are provided for developing new radial-plunger pumps of high speed, high efficiency, and long lifetime.

Abstract: A new radial plunger pump is given which is installed with roller between plunger and stator, the roller is purely rolling on the inner face of stator, reducing the friction force and effectively avoiding the combustion of friction pair in working orde. When viscosity varies with pressure and temperature, hydraulic pressure and cutting flow caused by plunger moving in the plunger auxiliary of a new radial-plunger pump, the computing formula of annular gap is corrected here, which provide a theoretical support for developing a high efficient radial-plunger pump.

Abstract: A new radial plunger pump is given which is installed with roller between plunger and stator, the roller is purely rolling on the inner face of stator, reducing the friction force and effectively avoiding the combustion of friction pair in working orde. Its static characteristics are studied and some theoretical evidences are provided for developing new radial-plunger pumps, and it has the advangtages of high speed, high efficiency, and long lifetime. The present analysis can provide the basis for its applications.