The invention discloses a lifting cylinder provided with an internal buffer limiting device and a buffer method thereof, and belongs to the technical field of hydraulic pumps. The lifting cylinder comprises an outer pipe assembly, a second pipe assembly is slidably connected to the interior of the outer pipe assembly, and a third pipe assembly is slidably connected to the interior of the second pipe assembly; a first annular cavity is reserved between the outer pipe assembly and the second pipe assembly, a second annular cavity is reserved between the second pipe assembly and the third pipe assembly, and a piston is installed at the top of the position between the second pipe assembly and the third pipe assembly through a bolt; and a buffer limiting device formed by combining a buffer ringand a check ring is installed at the bottom of the second pipe assembly. The lifting cylinder is provided with the internal buffer limiting device, the buffer ring of the limiting device is made of spring steel and has a good buffer effect, the buffer limiting device composed of the buffer ring and the check ring plays a good role in buffering and limiting when the lifting cylinder descends, andsevere impact generated when a carriage of a mine truck descends is avoided.
本发明公开了一种设置有内部缓冲限位装置的举升缸及其缓冲方法,属于液压泵技术领域,包括外管总成,所述外管总成的内部滑动连接有二管总成,且二管总成的内部滑动连接有三管总成,所述外管总成和二管总成之间预留有第一环形腔,所述二管总成和三管总成之间预留有第二环形腔,所述二管总成和三管总成之间的顶部通过螺栓安装有活塞,所述二管总成底部安装配有缓冲环和挡圈的组合而成的缓冲限位装置。本发明通过在举升缸上设置了内部缓冲限位装置,限位装置的缓冲环由弹簧钢制作,具有很好的缓冲作用,缓冲环和挡圈组成的缓冲限位装置为举升缸下降时起到了很好的缓冲限位,避免了矿用车车厢下降时产生剧烈冲击。
Lifting cylinder provided with internal buffer limiting device and buffer method thereof
设置有内部缓冲限位装置的举升缸及其缓冲方法
2021-02-26
Patent
Electronic Resource
Chinese
IPC: | F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS |