The invention belongs to the technical field of engineering machinery, and particularly relates to a rotary table and engineering machinery. The rotary table comprises a bottom plate and two sets of vertical plates. An upper hinge point hole is formed at the upper portion of each vertical plate, and a lower hinge point hole is formed at the lower portion of each vertical plate; the vertical plates are fixedly connected with the bottom plate; the upper hinge point holes are hinged with an arm support of the engineering machinery; the lower hinge point holes are hinged with a variable-amplitude oil cylinder of the engineering machinery; the variable-amplitude oil cylinder of the engineering machinery is hinged with the arm support of the engineering machinery; and the vertical distance from the centers of the upper hinge point holes to the centers of the lower hinge point holes is not smaller than the distance from the centers of the upper hinge point holes to the lower end face of the bottom plate. According to the rotary table, the problem that the vertical adjustable space of a lower hinge point hole in an existing structure is small is solved, the acting force of the variable-amplitude oil cylinder can be effectively reduced, and light-weight design of the oil cylinder and space optimization design of the whole engineering machinery are facilitated; and meanwhile, the stress of the upper hinge point holes and the lower hinge point holes of the rotary table is reduced, the design requirements on the rotary table and the hinge point hole structure are reduced, and the lightweight design of the rotary table is facilitated.
本发明属于工程机械技术领域,具体涉及一种转台及工程机械,该转台包括底板和两组立板;立板上部设有上铰点孔,下部设有下铰点孔;立板与底板固定连接;上铰点孔与工程机械的臂架铰接;下铰点孔与工程机械的变幅油缸铰接;工程机械的变幅油缸与工程机械的臂架铰接;上铰点孔中心到下铰点孔中心的竖向距离不小于上铰点孔中心到底板下端面的距离。本发明提供的转台克服了现有结构中下铰点孔竖向可调空间小的问题,能够有效减小变幅油缸作用力,有利于油缸轻量化设计和工程机械整机的空间优化设计;同时也减小了转台上铰点孔、下铰点孔受力,降低了对转台及铰点孔结构的设计要求,有利于转台的轻量化设计。
Rotary table and engineering machinery
一种转台及工程机械
2021-12-31
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
ROTARY HYDRAULIC SYSTEM, ENGINEERING MACHINERY, AND ROTARY CONTROL METHOD
European Patent Office | 2023
|