The invention discloses a hydraulic control system with a self-locking function for a lateral-moving double-fork distance-adjusting forklift attachment and a forklift. The hydraulic control system comprises an oil pump, a multi-way valve, a right pallet fork distance-adjusting oil cylinder, a left pallet fork distance-adjusting oil cylinder, a first bidirectional hydraulic lock, a second bidirectional hydraulic lock and an oil tank. An oil suction port of the oil pump is communicated with oil, and an oil outlet of the oil pump is communicated with an oil inlet P of the multi-way valve; the first bidirectional hydraulic lock comprises four working oil ports, namely a first working oil port V1, a second working oil port V2, a third working oil port C1 and a fourth working oil port C2; and the second bidirectional hydraulic lock comprises four working oil ports, namely a first working oil port V3, a second working oil port V4, a third working oil port C3 and a fourth working oil port C4. The two bidirectional hydraulic locks are arranged on the accessory oil way, so that the problem that one oil cylinder continues to act after the stroke of the other oil cylinder is in place during lateral movement of the lateral movement double-fork distance-adjusting forklift is solved, and the safety of lateral movement operation is improved.
本发明公开了带自锁功能的侧移双叉调距叉车属具液压控制系统及叉车,液压控制系统包括油泵、多路阀、右货叉调距油缸、左货叉调距油缸、第一双向液压锁、第二双向液压锁和油箱;油泵的吸油口与油相连通,油泵的出油口与多路阀的进油口P连通;第一双向液压锁包括四个工作油口,分别为第一工作油口V1、第二工作油口V2、第三工作油口C1和第四工作油口C2;第二双向液压锁包括四个工作油口,分别为第一工作油口V3、第二工作油口V4、第三工作油口C3和第四工作油口C4。本发明通过在属具油路上设置两个双向液压锁,解决了侧移双叉调距叉车侧移动作时,在一个油缸行程到位后,另一个油缸继续动作问题,提高了侧移运行的安全性。
Hydraulic control system with self-locking function for lateral-moving double-fork distance-adjusting forklift attachment and forklift
带自锁功能的侧移双叉调距叉车属具液压控制系统及叉车
20.09.2024
Patent
Elektronische Ressource
Chinesisch
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 |
Europäisches Patentamt | 2024
|Pallet fork hydraulic distance adjusting system for forklift
Europäisches Patentamt | 2025
|Lateral-shifting distance-adjusting telescopic fork and forklift
Europäisches Patentamt | 2024
|