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Hydraulic breaking hammer capable of achieving idle hitting function based on hydraulic hammer effect and damping holes
The invention discloses a hydraulic breaking hammer capable of achieving an idle hitting function based on a hydraulic hammer effect and a damping hole. The hydraulic breaking hammer comprises a piston, a cylinder body, a drill rod seat, an inner sleeve, an outer sleeve and a drill rod. The piston reciprocates in the cylinder body to strike the drill rod; a drill rod for crushing rocks, an inner sleeve and an outer sleeve are arranged in the drill rod seat, wherein the inner sleeve and the outer sleeve play a guiding role, and meanwhile the inner sleeve and the outer sleeve have the effect of protecting the drill rod seat from being abraded. A floating valve is arranged between the buffering cavity and system high-pressure oil, and a floating valve element achieves opening and closing of the floating valve through the liquid hammer effect and the pressure difference generated by a damping hole. The problem that the drill rod must be pressed tightly in the working process of the hydraulic breaking hammer is solved, and the working efficiency of the hydraulic breaking hammer is improved.
本发明公开了一种基于液锤效应及阻尼孔实现空打功能的液压破碎锤，包括：活塞、缸体、钎杆座、内套、外套及钎杆。活塞在缸体内往复运动，打击钎杆；钎杆座中设有破碎岩石的钎杆、起导向作用的内套、外套，同时内套、外套具有保护钎杆座不被磨损的作用。在缓冲腔和系统高压油之间设置浮动阀，浮动阀芯依靠阻尼孔产生的液锤效应及压差，实现浮动阀的开启和关闭。解决了液压破碎锤工作的过程中必须压紧钎杆的问题，提高了液压破碎锤的工作效率。
Hydraulic breaking hammer capable of achieving idle hitting function based on hydraulic hammer effect and damping holes
The invention discloses a hydraulic breaking hammer capable of achieving an idle hitting function based on a hydraulic hammer effect and a damping hole. The hydraulic breaking hammer comprises a piston, a cylinder body, a drill rod seat, an inner sleeve, an outer sleeve and a drill rod. The piston reciprocates in the cylinder body to strike the drill rod; a drill rod for crushing rocks, an inner sleeve and an outer sleeve are arranged in the drill rod seat, wherein the inner sleeve and the outer sleeve play a guiding role, and meanwhile the inner sleeve and the outer sleeve have the effect of protecting the drill rod seat from being abraded. A floating valve is arranged between the buffering cavity and system high-pressure oil, and a floating valve element achieves opening and closing of the floating valve through the liquid hammer effect and the pressure difference generated by a damping hole. The problem that the drill rod must be pressed tightly in the working process of the hydraulic breaking hammer is solved, and the working efficiency of the hydraulic breaking hammer is improved.
本发明公开了一种基于液锤效应及阻尼孔实现空打功能的液压破碎锤，包括：活塞、缸体、钎杆座、内套、外套及钎杆。活塞在缸体内往复运动，打击钎杆；钎杆座中设有破碎岩石的钎杆、起导向作用的内套、外套，同时内套、外套具有保护钎杆座不被磨损的作用。在缓冲腔和系统高压油之间设置浮动阀，浮动阀芯依靠阻尼孔产生的液锤效应及压差，实现浮动阀的开启和关闭。解决了液压破碎锤工作的过程中必须压紧钎杆的问题，提高了液压破碎锤的工作效率。
Hydraulic breaking hammer capable of achieving idle hitting function based on hydraulic hammer effect and damping holes
一种基于液锤效应及阻尼孔实现空打功能的液压破碎锤
ZHAO DECHAO (author)
2022-12-02
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
Valveless reversing type anti-idle-hitting hydraulic breaking hammer
| European Patent Office | 2021