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Based on the detection requirements of surface and sub-surface of micro steel ball, control system of defect scanning is studied, aiming at the problem of unfolded surface of steel ball, STC89S52 microcontroller is considered as the control core, then the feasible method of speed and direction control of step motor that driven by detection device, and hardware interface circuit and design of software solutions of the system are put forward, principles of unfolded surface of steel ball and control system of defect scanning and signal about defect scanning are analyzed, then the result are verified valid through the experiment. The results indicate that unfolded mechanics could be driven and flawed steel balls could be detected by the system of surface scanning of micro steel ball, which meet the design requirements.

Embedded spilled oil recovery machine is one of the important mechanical equipment of oil spill emergency response and the speed synchronization of sweep arm end (float) and oil boom reel is the key technology of that. The problem of that line-speed synchronization of float and oil boom reel of embedded spilled oil recovery machine has been studied and the joint synchronization control scheme which adopt PID and equal control been also put forward in order to realize the speed coordination control of dual motor driven by HST with the PLC as the core of controller in this paper. The scheme of hardware design for the speed synchronization control system has been given and the software of the key technologies also been design and ran. The system speed has been simulated and analysis by MATLAB simulation software and the evaluation methods of the linear velocity errors been also put forward. Study in this paper provides reference for the follow-up projects and similar technical design. The stages of research results provide a reference for design work of the follow-up and similar technologies.

Aiming at the structure and electromagnetic induction characteristics of inductive displacement transducers, it is inevitable to appear the problem between nonlinearity output and temperature drift, by which it’s testing accuracy is affected, on the basis of analysis of structural characteristics and working principle of the inductive displacement sensor, mathematical model of the relationship between input and output has been constructed, which can be simulated and analyzed by MATLAB software. The results indicate that the inductive displacement transducer has an proximately linear extent ( ) and the linearity errors are influenced by the coils number and the semidiameter;In the case of relatively constant of other parameters, when the coil of radius and the number of coil turns are fixed ,there will be the core displacement x and , the sensor output characteristic has an favorable linearity under the circumstances of changing the coil radius and the number of turns in proper sequence; When ,the output property of the sensor appears worse linearity.

Parametric design based on feature is the main method in parametric modeling of involute gear. In this paper, symmetric equations of the involute and the fillet curve are established according to the coordinates of points symmetrical about a straight line. And the tooth profile or alveolar profile of involute gear is generated accurately through controlling parameter of equations quantitatively. The problem of generating tooth profile accurately can be solved. Then the correctness of gear’s parametric design is ensured. The accuracy and efficiency of the gear’s engineering design are all improved.

The main drive shaft is one of the key component of the Hydro-Viscous Drive device. The advantage or not of the mechanics performance as the shaft running became the focus of technology design since the complexity of structural design caused by complex function and the strain displacement caused by alternating stress in the condition of low-speed and heavy-duty. The mechanics analysis has been accomplished by the traditional way of mechanics and been proved by the ANSYS , as well as the orderliness of the stress and stain been obtained on the condition of bearing conditions in this paper. The result of the finite element analysis has offered the design reference for the shaft optimizing and pointed out that there was the biggest stress and strain value near the oil hole φ22 in the direction of radical.

The MEA method basic process and CO2 capture system by the MEA method based on the lean solution source heat pump technology have been introduced. The desorption energy consumption of the system has been analyzed and caculated. The results show that heat pump technology combined with MEA method can reduce desorption energy consumption of system substantially. A new type of CO2 capture system by the MEA method with the solar-lean solution compound source heat pump providing desorption heat is put forward，whose thermodynamic performance is analyzed and the result indicates that desorption energy consumption can be decreased further by applying the solar assisted heat pump technology in the MEA method.