The invention discloses a cutter changing safety pry bar for a shield tunneling machine. The cutter changing safety pry bar comprises a force bearing rod and an extension rod. A U-shaped connecting piece is fixedly arranged at the bottom of the force bearing rod, the U-shaped connecting piece comprises two connecting rods, two first pry heads are fixedly arranged at the bottoms of the connecting rods, an expansion end is fixedly arranged at the top of the force bearing rod, and an installation groove is formed in the top of the expansion end. Compared with the prior art, the cutter changing safety pry bar has the advantages that the two pry heads are used on demand for prying so that a staff who change the cutter of the shield tunneling machine in a high-pressure environment can dismantleand install the shield cutter more safely, conveniently and efficiently; and a detachable extension rod can be installed when in use, the force arm is increased when prying is carried out, and an arc-shaped pry handle is more close to the shape of a human hand, so that the force application is convenient, carrying is convenient, and the efficiency and safety factor of the cutter changing work of the staff are improved.
本发明公开了一种盾构机换刀安全撬棍,包括受力杆和延长杆,受力杆底部固定设有U型连接件,U型连接件包括两个连接杆,连接杆底部固定设有两个第一撬头,受力杆顶部固定设有膨胀端,膨胀端顶部设有安装凹槽。本发明与现有技术相比的优点在于:本发明采用两种撬头按需使用,进行撬动,能够让高压环境下盾构机换刀的工作人员更安全便利高效的完成拆卸、安装盾构刀,可拆卸的延长杆可以在使用时安装起来,增加撬动时的力臂,弧形撬柄更加贴合人体手部的形状,便于施力,方便携带,提高工作人员换刀工作的效率和安全系数。
Cutter changing safety pry bar for shield tunneling machine
一种盾构机换刀安全撬棍
2020-05-08
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 |
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