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丰收—35拖拉机液压悬挂系统的液压泵上装有一个安全阀,它由阀体、阀座、弹簧、钢球、调整螺钉等零件组成(图1)。安全阀的额定工作压力为175±5公斤/厘米~2(流量为13公升/分时),当压力超过额定压力时,安全阀即打开起减压泄油作用,使液压系统压力衡定维持在额定数值内,保证拖拉机运行及耕作安全,避免损坏机件及产生事故。我站自1972年以来即回收安全阀,经大家研究分析后认为可以修复。经过二年来的修复实践,绝大多数报废的安全阀均能修复使用。丰收—35拖拉机液压悬挂系统的安全阀有两种结
The harvesting -35 tractor hydraulic suspension system is fitted with a safety valve on the hydraulic pump, which consists of a body, seat, spring, ball, adjusting screw and other components (Figure 1). Safety valve rated working pressure of 175 ± 5 kg / cm ~ 2 (flow rate of 13 liters / min), when the pressure exceeds the rated pressure, the relief valve that is open to play the role of decompression drain to maintain the pressure balance of the hydraulic system Within the rated value, to ensure tractor operation and farming safety, to avoid damage to machinery and accidents. I am station since 1972, that is, safety valve recovery, after we study and analysis that can be repaired. After two years of repair practice, the vast majority of scrapped safety valves can be repaired. Harvest -35 tractor hydraulic suspension system safety valve has two kinds of knot