 |
ความคิดเห็นที่ 53 |
ข้อมูลเรื่อง Tower Cranes
เครนแบ่งออกได้เป็น 2 แบบตามการใช้งานทั่วไป There are two main types of tower crane in general use;
1. Self Erect Tower Crane This is a tower crane that is designed to be easily and rapidly transported and erected. Some of them carry their own generator and are therefore completely self contained.
2. Assisted Erect Tower Crane This type of tower crane is usually larger with a greater lifting capacity than the Self Erect. Its design calls for it to be builton site, piece by piece, often with the assistance of a mobile crane, hence its name Assisted Erect.
และยังแบ่งย่อยออกได้เป็น 2 แบบ ตามแนวแกนของเครน (jib) The two types of basic jib design are:
1.Horizontal Jib This jib takes the form of a simple structure extending from the tower, along which a trolley can travel, carrying the hoist rope and hook assembly to vary radii.
2.Luffing Jib The luffing jib has no trolley, the variation of hook radii is achieved by altering the jib angle, the same as with a mobile crane
อ้างอิงจาก: http://www.towercranetraining.co.uk/towercranetypes.htm
จากคุณ |
:
กกร่ม
|
เขียนเมื่อ |
:
5 ต.ค. 52 23:24:09
|
|
|
|
 |