The invention discloses a chain type lifting device which comprises a machine frame, a lifting table and a lifting mechanism, wherein the machine frame comprises oppositely-arranged supporting arms, the two ends of the lifting table are arranged on the two supporting arms in a lifting mode respectively, the lifting mechanism comprises chain wheels and chains, and the chain wheels are installed at the upper end and the lower end of each supporting arm respectively; the chains are wound on the two chain wheels on each supporting arm in a sleeving mode, the two ends of the lifting table are connected to the chains on each supporting arm through connecting assemblies respectively, the connecting assemblies are connected to the two ends of the chains respectively, each connecting assembly comprises a connecting plate, a first bolt and a first nut, and the connecting plates are fixedly arranged on the lifting table; an end cap of the first bolt is fixedly connected with one end of the chain, a threaded part of the first bolt penetrates through the connecting plate and then is in threaded connection with the first nut, and the tensioning degree of the chain is adjusted by adjusting the length of the first nut screwed into the threaded part. The chain type lifting device is convenient to operate, can adjust the chain tensioning degree and effectively avoids chain derailing.
本发明公开一种链条式升降装置,包括机架、升降台及提升机构,机架包括相对设置的支撑臂,升降台两端分别可升降地设于两支撑臂上,提升机构包括链轮及链条,每一支撑臂的上下两端分别安装有链轮,链条绕套在每一支撑臂上的两个链轮上,升降台的两端分别通过一连接组件连接在每一支撑臂上的链条上,连接组件分别连接在链条两端,连接组件包括连接板、第一螺栓及第一螺母,连接板固设在升降台上,第一螺栓的端帽与链条一端固接,第一螺栓的螺纹部穿过连接板后螺接有所述第一螺母,调节第一螺母螺入螺纹部的长度,从而调节链条的张紧度。本发明操作方便,能够调节链条张紧度,有效避免链条脱轨。
Chain type lifting device
一种链条式升降装置
2021-11-30
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 |
Lifting chain blocking prevention device for lifting chain
European Patent Office | 2020
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