The invention discloses a hydraulic lifting device for a dumper, and relates to the technical field of hydraulic lifting devices.The hydraulic lifting device comprises a cross rod, a lifting mechanism is installed on the side wall of the cross rod, the lifting mechanism is used for lifting a container of the dumper, and the lifting mechanism comprises a first telescopic mechanism, a second telescopic mechanism and a third telescopic mechanism; the third telescopic mechanism comprises a second hinge block, the second hinge block is arranged outside the cross rod in a sleeving mode, the second hinge block is rotationally connected with the cross rod, a sleeve is fixedly connected to the top of the second hinge block, and a damping mechanism and the like are arranged in the sleeve in a sleeving mode. The sliding cylinder drives the first cylinder body to move downwards to extrude hydraulic oil in the second cylinder body, the hydraulic oil flows between the cylinder bodies and the groove body through the small-diameter circulation holes, the flowing resistance is increased, and the damping effect is achieved. When hydraulic oil flows in, air in the groove body is compressed, and the damping effect is further enhanced.
本发明公开了一种自卸车用液压举升装置,涉及液压举升装置技术领域,包括横杆,所述横杆的侧壁安装有举升机构,所述举升机构用于升举自卸车的货箱,所述举升机构包括第一伸缩机构、第二伸缩机构和第三伸缩机构,所述第三伸缩机构包括第二铰接块,所述第二铰接块套设在横杆外,所述第二铰接块与横杆转动连接,所述第二铰接块的顶部固定连接有套筒,所述套筒内套设有阻尼机构等,在本发明中,第三伸缩机构中设计了阻尼机构,当举升机构失压时,滑动筒带动第一筒体向下运动,挤压第二筒体内的液压油,液压油通过小直径的流通孔在筒体与槽体间流动,增加流动阻力,形成阻尼效果。槽体容积大于筒体,液压油流入时压缩槽体空气,进一步增强阻尼效果。
Hydraulic lifting device for dump truck
一种自卸车用液压举升装置
2024-12-13
Patent
Electronic Resource
Chinese
IPC: | 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 |
Lifting hydraulic system suitable for mining dump truck and mining dump truck
European Patent Office | 2025
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