The invention discloses a three-stage completely-free portal frame with a staged lifting function and a forklift. The three-stage completely-free portal frame comprises a first portal frame, a second portal frame, a third portal frame, a fork arm carrier, a first rear lifting cylinder for driving the second portal frame to move up and down, a second rear lifting cylinder for driving the third portal frame to move up and down, and a front lifting cylinder for driving the fork arm carrier to move up and down. The second portal frame is in sliding connection with the first portal frame, the third portal frame is in sliding connection with the second portal frame, the fork arm carrier is in sliding connection with the third portal frame, and an oil way enters the first rear lifting cylinder, the second rear lifting cylinder and the front lifting cylinder in sequence. According to the three-stage completely-free portal frame, through sequential movement of the third-stage fork arm carrier and the second-stage third portal frame, the stability and the bearing capacity of the whole forklift are improved.
本发明公开了一种具有分级起升功能的三级全自由门架及叉车,包括第一门架、第二门架、第三门架、货叉架、用于驱动第二门架上下运动的第一后起升缸、用于驱动第三门架上下运动的第二后起升缸和用于驱动货叉架上下运动的前起升缸,第二门架与第一门架滑动连接,第三门架与第二门架滑动连接,货叉架与第三门架滑动连接,油路依次进入第一后起升缸、第二后起升缸、前起升缸;该三级全自由门架通过第三级的货叉架和第二级的第三门架的先后顺序运动,提高了整个叉车稳定性和承载力。
Three-stage completely-free portal frame with staged lifting function and forklift
一种具有分级起升功能的三级全自由门架及叉车
2021-05-28
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 |
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