【摘要】 本文在分析目前液压冲击器的基础上。提出了一种压力反馈控制式独立无级调节冲击能与冲击频率的新型液压冲击器，阐述了其结构与工作原理。该新型液压冲击器能适应各种工况的需要，降低能耗，提高工作效率。更多还原

【Abstract】 A new pressure feedback control type hydraulic impactor with independent stepless adjustment of impacting power and frequency is suggested in the article. Its structure and work principle are discussed. This new hydraulic impactor can meet demands of different work situation, reduce power consumption and improve work efficiency.更多还原