High-pressure pneumatic proportional pressure reducing valve sealed with corrugated pipes

• Main Authors: TAO GUOLIANG, MENG FANGAN, WEI CHUANXI, WANG BANGMENG, CHEN YE
• Format: Patent
• Language: Chinese; English
• Published: 30.06.2017
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The invention discloses a high-pressure pneumatic proportional pressure reducing valve sealed with corrugated pipes. The high-pressure pneumatic proportional pressure reducing valve comprises a three-section-type valve body, a two-section valve element sealed by the metal corrugated pipes, three linear ball bearings located between the valve body and the valve element, two high-speed switching valves and a controller. The valve element and the valve body make relative movement, and meanwhile the positions needing to be sealed are all sealed through the metal corrugated pipes. Moreover, the valve element and the valve body make relative movement, and the contact positions are all guided by the linear ball bearings, so that the small friction force and good gas sealing property are achieved between the valve element and the valve body. 本发明公开了种波纹管密封的高压气动比例减压阀，该高压气动比例减压阀包括三段式的阀体、由金属波纹管密封的两段阀芯、阀体与阀芯之间的三个直线滚珠轴承、两个高速开关阀和控制器。阀芯与阀体之间相对运动同时又需要密封的位置全部采用金属波纹管进行密封，并且阀芯和阀体相对运动且接触的位置全部采用直线滚珠轴承进行导向，使阀芯和阀体之间具有较小的摩擦力和良好的气体密封性能