The invention relates to a serial connection type synchronous hydraulic cylinder lifting device which comprises a main hydraulic cylinder, a main cylinder body, a main piston movably arranged in the main cylinder body, a main sliding rod arranged on the main piston and provided with a main oil cavity communicated with a main rod cavity, and a main center pipe arranged in the main cylinder body, the main cylinder body is further provided with a first oil port communicated with the main rodless cavity and a second oil port communicated with the main center pipe. The slave hydraulic cylinder comprises a slave cylinder body, a slave piston movably arranged in the slave cylinder body, a slave sliding rod arranged on the slave piston and provided with a slave oil cavity communicated with a slave rod cavity, and a slave central pipe arranged in the slave cylinder body, and the slave central pipe is movably inserted into the slave piston and communicated with the slave oil cavity; the slave cylinder body is also provided with a third oil port communicated with the slave rodless cavity and a fourth oil port communicated with the slave central pipe; the connecting pipe is respectively connected with the second oil port and the third oil port; and the oil pressure area of the master rod cavity is the same as that of the slave rodless cavity. According to the serial connection type synchronous hydraulic cylinder lifting device, the oil pressure area of the main rod cavity is equal to the oil pressure area of the auxiliary rodless cavity, so that synchronous stretching and retracting of the two cylinders are achieved, and it can be guaranteed that the retracting speeds and the retracting positions of piston rods of the two cylinders are completely equal.
本发明涉及一种串联型同步液压缸举升装置,包括:主液压缸,包括主缸体、活动设于主缸体内的主活塞、设于主活塞上且设有与主有杆腔相通的主油腔的主滑动杆和设于主缸体内的主中心管,主中心管还活动插在主活塞上,且与主油腔相通,主缸体上还设有与主无杆腔相通的第一油口、与主中心管相通的第二油口;从液压缸,包括从缸体、活动设于从缸体内的从活塞、设于从活塞上且设有与从有杆腔相通的从油腔的从滑动杆和设于从缸体内的从中心管,从中心管还活动插在从活塞上,且与从油腔相通,从缸体上还设有与从无杆腔相通的第三油口和与从中心管相通的第四油口;以及连接管,分别与第二油口和第三油口连接;其中,主有杆腔的油压面积与从无杆腔的油压面积相同。本发明提供的一种串联型同步液压缸举升装置通过将主有杆腔的油压面积与从无杆腔的油压面积设有相等,从而实现两缸同步伸缩,并且能够保证两缸活塞杆缩回速度和位置完全相等。
Tandem synchronous hydraulic cylinder lifting device
一种串联型同步液压缸举升装置
2024-11-15
Patent
Electronic Resource
Chinese
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein |
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