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

A kind of propeller auxiliary disassembly tooling, disassembly method and installation method

A technology of propeller and tooling, applied in the field of auxiliary disassembly and assembly of propellers, can solve the problems of affecting the service life of the hull plate, a lot of manpower input, inconvenient disassembly and assembly, etc. The effect of assembly and disassembly

Active Publication Date: 2022-07-05
JIANGNAN SHIPYARD GRP CO LTD
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For some large ships, the volume and weight of the propeller are relatively large, its diameter can reach more than ten meters, and its net weight can reach hundreds of tons. Welding lugs on the corresponding hull plate above the propeller is not only time-consuming and labor-intensive, but also a waste of cost, and affects the service life of the hull plate; in order to ensure the service life of the hull plate, welding lugs on the hull plate should be avoided
[0003] When the lifting lugs are not welded on the outer plate of the hull, the disassembly and assembly of the propeller needs to be completed with the cooperation of multiple tools such as slings, hoists and forklifts. Cooperating with pushing and pulling is labor-intensive and time-consuming, and the efficiency of disassembly and assembly is extremely low; in addition, the suspenders around the hull can easily cause damage to the paint on the hull's outer panels, increasing follow-up remedial work

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
  • A kind of propeller auxiliary disassembly tooling, disassembly method and installation method
  • A kind of propeller auxiliary disassembly tooling, disassembly method and installation method
  • A kind of propeller auxiliary disassembly tooling, disassembly method and installation method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0067] like figure 1 , figure 2 , Figures 8 to 14 As shown, a propeller auxiliary disassembly and assembly tool of the present invention includes a chassis I 1 that can move longitudinally on the ground, a chassis I 1 that can move laterally on the chassis I 1, and a jacking device 3 arranged on the chassis II 2. The device 3 includes a lifting platform 31 and a lifting driving device 32 that drives the lifting platform 31 to move up and down. The lifting driving device 32 is a hydraulic cylinder, a motor screw device or a cylinder and other linear driving devices; The concave arc-shaped groove 31a increases the contact area between the lift platform 31 and the propeller 61 of the propeller 6 and ensures the support stability of the propeller 61 .

[0068] like Figure 1 to Figure 2 As shown, the propeller auxiliary disassembly tool includes longitudinal guide rails 71, and the bottom of chassis I1 is provided with rollers 73 or sliders that can move on the longitudinal g...

no. 2 example

[0073] like Figure 1 to Figure 14 As shown, a propeller auxiliary disassembly and assembly tool of the present invention includes a chassis I 1 that can move longitudinally on the ground, a chassis I 1 that can move laterally on the chassis I 1, and a jacking device 3 arranged on the chassis II 2. The device 3 includes a lifting platform 31 and a lifting driving device 32 that drives the lifting platform 31 to move up and down. The lifting driving device 32 is a hydraulic cylinder, a motor screw device or a cylinder and other linear driving devices; The concave arc-shaped groove 31a increases the contact area between the lift platform 31 and the propeller 61 of the propeller 6 and ensures the support stability of the propeller 61 .

[0074] like figure 1 and figure 2 As shown, two sets of support frames are arranged on the chassis II 2 at intervals, and the tops of the two sets of support frames are connected by a hanger 5, and the hanger 5 is provided with a lifting ring ...

no. 3 example

[0086] The present invention also provides a disassembly method of the propeller, which uses the propeller-assisted disassembly and assembly tool in the first embodiment or the second embodiment to disassemble the propeller, and the disassembly method includes the following steps:

[0087] Move the chassis I 1 longitudinally to below the propeller 6 to be disassembled, adjust the position of the chassis II 2 on the chassis I 1, until the arc groove 31a of the lifting platform 31 is located directly below the propeller hub 61, through the lifting drive device 32 Drive the lift platform 31 to move up until the arc groove 31a of the lift platform 31 is fitted with the propeller hub 61;

[0088] Loosen the propeller 6 so that the hub 61 of the propeller 6 and the tail shaft are in a fixed release state;

[0089] Drive the chassis I1 to move away from the tail shaft, so that the propeller 6 is separated from the tail shaft; the chassis I1 continues to move until it reaches the pres...

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 present invention provides a propeller auxiliary disassembly tool, comprising a chassis I that can move longitudinally on the ground, a chassis II that can move laterally on the chassis I, and a jacking device arranged on the chassis II, the jacking device comprising a lifting platform and a lift drive device that drives the lift platform to move up and down, the top surface of the lift platform is provided with an arc-shaped groove that is recessed downward; the present invention uses the lift platform to support the propeller, and the chassis I, the chassis II and the lift drive device cooperate to lift and lower The adjustment of the platform's up, down, front, rear, left and right positions greatly reduces the difficulty of disassembly and assembly of the propeller and improves the disassembly and assembly efficiency; in addition, the device only needs one person to complete the entire disassembly and assembly process, saving a lot of manpower and reducing the labor intensity of workers; finally, By using the device of the invention to disassemble and assemble the propeller, there is no need to weld the lifting lugs on the hull outer plate, thereby ensuring the service life of the hull outer plate.

Description

[0001] The invention belongs to the technical field of ship maintenance, and in particular relates to a propeller auxiliary disassembly and assembly tool, a disassembly method and an installation method. Background technique [0002] The propeller consists of a propeller hub and a number of blades radially fixed on the propeller hub. For some large ships, the volume and weight of the propeller are relatively large, its diameter can reach more than ten meters, and the net weight can reach hundreds of tons. Welding lifting lugs on the corresponding hull plate above the propeller is not only time-consuming and labor-intensive, but also wastes cost and affects the service life of the hull plate. In order to ensure the service life of the hull plate, welding lifting ears on the hull plate should be avoided. [0003] When the lifting lugs are not welded on the hull plate, the disassembly and assembly of the propeller needs to be completed through the cooperation of multiple tools su...

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 Patents(China)
IPC IPC(8): B25B27/00
CPCB25B27/00Y02E10/72
Inventor 程建国吴枞遥肖亮朱群陆国祥
Owner JIANGNAN SHIPYARD GRP CO LTD
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