首页> 外国专利> Hydraulic lift boom attachable to a tractor's draw bar and three point hitch

Hydraulic lift boom attachable to a tractor's draw bar and three point hitch

机译:液压起重臂可连接到拖拉机的牵引杆和三点悬挂装置

摘要

The hydraulic lift boom attachment including a support frame and a telescopic lifting arm wherein the support frame is coupled to a tractor's three point hitch which hydraulically raises or lowers the support frame. The telescopic lifting arm has one end coupled to the support frame and the other end is coupled to the tractor's draw bar via a pulley assembly to rotate such other end of the telescopic lifting arm when the support frame is hydraulically raised or lowered. Furthermore, the support frame of the hydraulic lift boom attachment includes a telescopic vertical support assembly to vary the vertical height of the telescopic lifting arm.
机译:液压举升吊臂附件包括支撑框架和伸缩式升降臂,其中支撑框架连接到拖拉机的三点悬挂装置,该悬挂装置通过液压方式升高或降低支撑框架。伸缩升降臂的一端连接到支撑框架,而另一端通过滑轮组件连接到拖拉机的牵引杆,以在液压升高或降低支撑框架时旋转伸缩升降臂的另一端。此外,液压举升臂附件的支撑框架包括可伸缩的垂直支撑组件,以改变可伸缩的升降臂的垂直高度。

著录项

  • 公开/公告号US6030170A

    专利类型

  • 公开/公告日2000-02-29

    原文格式PDF

  • 申请/专利权人 LEWIS;STEVE B.;

    申请/专利号US19980055862

  • 发明设计人 STEVE B. LEWIS;

    申请日1998-04-06

  • 分类号B66F9/00;

  • 国家 US

  • 入库时间 2022-08-22 01:37:42

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