# 가스 스프링 Elevation 동작 마찰력 보상 변수 조합 연구 (1)

• Lee, Jeong-Ick (Dept. of Mechanical Design, Division of Mechanical Engineering, INHA Technical College)
• 이정익 (인하공업전문대학 기계공학부 기계설계과)
• Accepted : 2017.05.12
• Published : 2017.05.31
• 32 5

#### Abstract

In this study, factor analysis was performed to reduce the friction in the elevation motion of a stand for a 50-inchtelevision. Pipe type cross-section control was used for accurate positioning control of the piston rod. The pipe type was also compared with a labyrinth-type crosssection for the orifice. The frictional force was then reduced using gas seal lip technology. Specifications were chosen, and a volume compensation experiment was carried out using an apparatus for compensating the volume of the cylinder, which is compressed by the volume of the piston rod. Based on CAE and experimental considerations, the labyrinth-type orifice is preferred for reducing friction. For the gas seal lip technology, outer and inner diameters of ${\Phi}20$ and ${\Phi}8$ for the hollow rod were more appropriate when assuming the weight of a 50-inch television to be 30kgf. The third is that the result of total consideration in stability problem and performance of volume compensation for specification decision and volume compensation experiment is determined the final speculation of hollow rod ?8x?4 and riveting system. The last is that the labyrinth orifice is not founded that of the ${\O}0.4{\sim}0.6$ orifice both tests on 300 mm intervals.

#### Keywords

Elevation;Friction;Gas seal lip;Hollow rod;Labyrinth type;Orifice;Piston;Pipe type

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