This paper introduces a wall-climbing robot of investigation that uses the passive vibration of the negative pressure adsorption mode and the new type of round of foottype alternating walking. It describes the working principle of the robot and its key structure, its main components were checked and the simulation analysis, and the component of the controllable system was illustrated.

No abstract

No abstract

No abstract

In order to change the traditional way of handpicking up pine cones on the tree, this paper presents a new technology of pine cones collection and the key equipment research and development. Using this device, workers may directly pick up pine cones on the ground under the tree. This paper, founded on the system design, has a theory analysis and stability checking about the retractable lifting rods which are the key components of this device, verifying the stability and rationality of the picking device for pine cones. Based on these researches, this paper has developed the prototype of the portable picking device for pine cones. It has the characteristic of carrying easily, suiting for promotion in forest zone.