Welded structure is usually used in current nailing machines. When a nailing machine was used for a period of time, the base of the machine was deformed, so products produced with the machines become waste. The reason for these problems is that the design of window shape around the body column plate is unreasonable, so the plate often cracks. In addition, the hydraulic system in current nailing machines is unreasonable too, which makes production less efficient. Aiming the current problems of the nailing machine, finite element analysis software ANSYS is used to analysis and find the machine’s stress concentration areas. According to the analysis results, the shape and size of these areas are re-designed, which has the minimum area stress and deformation. The welded machine body is changed into a casted one, and the other modules are also re-build, all of which make the machine has longer service life. Through the process analysis, the hydraulic system is re-designed too, which improves the equipment productivity greatly.
In terms of the problem about paving coiled waterproof material on the highway bridge surface, an effective coiled waterproof material paving equipment is designed, and the total structure of the equipment and the function of important parts are described. The paper mainly introduces the characteristic and function of the stable walking system, automatic speed regulation system for uncoiling coiled waterproof material, agitating and leaking system of binding agent, coiled waterproof material paving self-adapted mechanism of the road surface. The equipment can adapt the condition of road surface, realizing wide area paving of waterproof material. It ensures the quality of the paving, and at the same time, enhances the paving efficiency, increases automatic level, and eases labor of technicians.
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