摘要
在相同的工作压力下,本文对采煤机牵引部自调整背压液压系统、定值背压液压系统和零背压液压系统进行阶跃负荷试验研究。结果表明,自调整背压液压系统对抑制马达转速的波动较定值背压液压系统和零背压液压系统有明显的优良效果。
Step load tests were made respectively on a hydraulic system with automatic back-pressure adjustment,and those with constant back-pressure as well as null back-pressure.The test result of the former is much better than the latter two systems in controlling fluctuation of rotational speed of motor.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1993年第2期53-58,共6页
Journal of China Coal Society
关键词
采煤机
牵引部
液压系统
复合阀
shearer
haulage unit
hydraulic system
automatic back-pressure adjustment, composite valve
