Mechanical rotary table [ has been widely used in many work applications, where rotating capacity and power of the table are necessary elements to ensure the operation safety. The paper provides a rotary table design operated by hand movements to lift and fall, rotate and turn over in the absence of electricity and other external powers. Therefore, table should have a simple structure and be easy to maintain, meanwhile working area should be wide enough for convenient operation. Simultaneously good safety performance is of great significant in this design, which requires a reasonable arrangement of each components position to minimize the number of dangerous sections. The rotary part applies commonly used clamping flange, which allows the table to clamp different types of components. Mechanical rotary table can be applied in many different occasions, making it a truly multi-functional workbench.

The automobile crane is a crane which is arranged on a common chassis or special automobile chassis, the driving cab and a lifting control room. The advantages of this crane is good mobility, transfer quickly. weight body truck crane is a very important part, but also a key part of the whole balance, its main function is to balance the gravity center of the whole lifting, make more stable, more safety. The current general crane are fixed weight, the weight is directly arranged motionless in the car tail, installation or transportation unloading work. This design is mainly the counterweight body is designed into a movable and rotatable, this mechanism has good flexibility, can adjust the balance weight body position, equivalent to adjust the focus of the counterweight body, enhance the lifting capacity and safety.

According to physiological and psychological characteristics of adults, this paper proposed sled design based on ergonomics. The paper respectively provided human research, analysis and design for two aspects directly related to ergonomics, handlebar and seat, in order to make product safer, more comfortable and effective to meet consumers demands.

This paper expounds the design mechanism and principle of control device work environment for dust pollution control and prevention working condition, in waste money drilling processing. This paper also presents the technological process, the device structure design and work mechanism of the device and lays emphasis on the working principle, the classification and selection of the dust filter; presents the classification comparison and selection, the design and characteristic calculations of gas collecting dome; introduces the design, installing methods, main parameter calculations of the piping system, and the computations and selection of the motor and the fan device as well; presents the classification of bag type filter, the requirement and selection of filter bag, and the calculation of main parameters of dust filter. The design of the device not only increases the waste paper recovery efficiency in the process of disposing waste money and avoids dust pollution, but also contributes to the safety, security and the inspection of disposing procedure.

This paper mainly presents those aspects about electrically driven hunting cart design as follows: the main structure design including the designs of the cart frame, the hanger bracket and the axle; the overall modeling design including the designs of the shaping and the color; the virtual design including the major methods and steps of it and the content of electrically drive hunting cart design as well.