Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Flange type full slewing heavy duty crane installation method

An installation method and a full-turn technology are applied to cranes and other directions, which can solve problems such as increasing the difficulty of hoisting and positioning of cranes, and achieve the effects of improving efficiency, speed and accuracy, and convenient and fast positioning

Inactive Publication Date: 2011-04-20
CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the technical requirements in the crane manufacturing process, the crane manufacturer usually requires that the bolt holes of the flange and the slewing bearing be matched according to the specified requirements during installation, and no random positioning is allowed, which increases the difficulty of positioning when the crane is hoisted.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flange type full slewing heavy duty crane installation method
  • Flange type full slewing heavy duty crane installation method
  • Flange type full slewing heavy duty crane installation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The installation method of the flange-type full-slewing heavy-duty crane of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] Such as Figure 1-2 , the installation method of the flange type full-slewing heavy crane of the present invention comprises the following steps:

[0025] 1) Before the crane machine room 3 is hoisted to the top of the crane frame 2, scan the plane of the flange 4 at the upper end of the frame frame with a level gauge to meet the requirements of the crane manufacturer before proceeding to the next step of hoisting the machine room 3. When the flatness of the flange surface does not meet the installation requirements for docking with the machine room 3, a milling machine must be used to re-machine the flange surface of the flange 4 at the upper end of the machine base, and proceed to the next installation work after the measurement is qualified.

[0026] Before the hoisting...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a flange type full slewing heavy duty crane installation method, which comprises the following steps that: 1) a machine room is hoisted to the front above a base, and the flatness of a flange face at the upper end of the base is measured by using a level to ensure the flatness thereof; 2) when the machine room and the base are installed, at least three guiding and positioning screws are used, the guiding and positioning screws are uniformly distributed in bolt holes at the lower end of a rotary bearing of the machine room in advance before hoisting and positioning, the extending lengths of the guiding and positioning screws are different during installation, then the guiding and positioning screws are inserted into corresponding screw holes of the flange face at the upper end of the base in turn respectively, and the clearance between the flange face and the rotary bearing is detected by using a feeler gauge after positioning; and 3) after the positioning is finished, step-by-step pre-tightening, total pre-tightening and total pre-tightening are performed by means of a supporting tool of a torque wrench so as to finish butting operation of the machine room and the base. The method can reduce the positioning difficulty when a crane is hoisted, quickly and accurately finish positioning and successfully finish the butting operation of the machine room and the base.

Description

technical field [0001] The invention relates to the technical field of installation of ship or port engineering machinery, in particular to a method for butt joint installation of a slewing bearing at the lower end of a machine room of a full-slewing heavy crane and a flange surface at the upper end of a machine base. Background technique [0002] The flange-type full-slewing crane is usually composed of three parts: the crane base, the boom, and the crane room. The embedded flange at the upper end of the crane base is connected to the slewing bearing of the inner ring at the lower end of the crane room through bolts. The flange surface at the upper end of the crane frame and the slewing bearing at the lower end of the crane room are manufactured through machining, drilling and other processes, and the flatness requirements are very high during installation. The stronger the lifting capacity, the larger the radius of the flange and the slewing bearing, and the larger the num...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/00
Inventor 何琎段仲兵
Owner CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com