The invention discloses a telescopic swing arm leveled by a chain and a mast arm frame type lifting platform, and belongs to a lifting platform for aloft work. The telescopic swing arm leveled by thechain and the mast arm frame type lifting platform aim at solving the problems that a telescopic swing arm of an existing mast arm frame type lifting platform is prone to leveling failure or a horizontal inclination angle of the platform is too large in an operation process, a first position point used for pivoting connection is arranged at the near end of the swing arm, a second position point used for pivoting connection is arranged at the far end of a telescopic arm, a third position point relatively unchanged with the second position point in position is arranged at the far end of the telescopic arm, a fourth position point relatively unchanged with the first position point in position is arranged at the far end of the telescopic arm, and a chain is arranged at the far end of the telescopic arm, wherein the fourth position point and the first position point determine the first edge of a parallelogram, the third position point and the second position point determine the third edge of the parallelogram, the first edge is parallel to the third edge, and the chain is wound around the swing arm and the telescopic arm so that the first edge and the third edge can be kept parallel allthe time and the lengt of the chain can be kept unchanged when the swing arm swings or/and the telescopic arm stretches out and draws back. The requirements of the condensation size are kept as smallas possible and the platform amplitude increase are met.
本发明公开了一种链条调平的伸缩摆臂及桅柱臂架式升降平台,属于高空作业用升降平台,现有桅柱臂架式升降平台的可伸缩摆臂容易出现调平失效或者运行过程中平台水平倾角过大,本发明在摆动臂的近端配置用于枢转连接的第一位点,在伸缩臂的远端配置用于枢转连接的第二位点,并配置与第二位点的位置相对不变第三位点、与第一位点的位置相对不变的第四位点、链条,第四位点与第一位点确定平行四边形的第一边,第三位点与第二位点确定平行四边形的第三边,第一边与第三边相平行,链条绕在摆动臂、伸缩臂上使得摆动臂摆动或/和伸缩臂伸缩时第一边与第三边始终保持平行且链条长度保持不变。满足了缩合尺寸尽量小且平台幅度增加的需求。
Telescopic swing arm leveled by chain and mast arm frame type lifting platform
链条调平的伸缩摆臂及桅柱臂架式升降平台
2020-09-04
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 / B66C Krane , CRANES |
Lifting platform with chassis capable of being leveled
Europäisches Patentamt | 2023
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