Mounting structure of valve guide pipe and method for measuring thrust from valve stem to valve guide pipe

• Main Authors: QIAN WEI, CUI HONGGEN, DU LE, WANG YUNCHAO, XU ZHENGWU, HE WEI, XU YAOXING, YIN HAITING, XU ZHENG, CHEN WEIFANG
• Format: Patent
• Language: Chinese; English
• Published: 14.02.2020
• Subjects: BLASTING; CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; MECHANICAL ENGINEERING; PHYSICS; STEAM ENGINES; TESTING; WEAPONS

The invention discloses a mounting structure of a valve guide pipe. The mounting structure particularly characterized in that an annular groove is formed in the middle part of the valve guide pipe, afirst shoulder and a second shoulder are formed on the top and the bottom of the valve guide pipe respectively, a mounting hole for bearing the valve guide pipe is arranged on a cylinder head, the annular groove is in clearance fit with the mounting hole, the first shoulder abuts against the top surface of the cylinder head, and the second shoulder abuts against the bottom surface of the cylinderhead. According to the mounting structure, the moment arm of the thrust from a valve stem to the valve guide pipe is constant. The invention also discloses a method for measuring the thrust from the valve stem to the valve guide pipe. The method is realized based on the mounting structure, and the method can dynamically acquire the thrust born by the valve guide pipe under the state close to the actual working state so tha