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Spoke construction for cable pulleys

A sheave and spoke technology, applied in mechanical equipment, components with teeth, belts/chains/gears, etc., can solve problems such as difficulty in reaching solder joints, affecting weldability, and increasing manufacturing costs.

Inactive Publication Date: 2014-11-19
SIEMAG TECBERG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, rolled member materials as spokes have the disadvantage that, on the one hand, the rolled materials are not continuous and homogeneous, which negatively affects their weldability and, consequently, the quality of the high-quality welded joints to be obtained
On the other hand, rolled elements as spokes for sheaves also have the disadvantage that, due to their geometrical structure, it is difficult to reach the welding points, moreover, they are difficult to achieve the necessary surface quality by machining, which increases manufacturing cost
[0008] To avoid these problems, attempts have been made to replace the rolled members with two U-shaped plates connected to each other on the backside, however, these still do not solve the problem of hard-to-reach welds, especially when the welds are designed to be fully bonded

Method used

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  • Spoke construction for cable pulleys
  • Spoke construction for cable pulleys
  • Spoke construction for cable pulleys

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] figure 1 A side view of a sheave used as a guide between the lifting device and the rope load is shown. The sheave has a sheave rim 2, a hub 4, and a plurality of sheave spokes 6 connecting the hub and the rim.

[0028] From figure 1 It can be easily seen that the sheave is composed of two half discs separated along the line A-A, and the two half discs are detachably connected by bolts 8 on the hub 4 and a connecting flange 10 on the sheave rim 2.

[0029] figure 2 with image 3 Shows the basis figure 1 A cross-sectional view of the spokes 6 of the sheave. As shown in these figures, each sheave spoke 6 is composed of a separate curved steel member of equal thickness with an S-shaped or Z-shaped cross-section, as for welding operations, this ensures easy access to the intersection point and also ensures High area moment of inertia.

[0030] Figure 4 Shows the basis figure 1 Top view of the intersection area of ​​the half-disc of the A-A line. In particular, the interface be...

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PUM

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Abstract

The invention relates to a cable pulley for use as a guide device between a conveying means and a cable carrier, comprising a cable pulley ring, a hub (4) and cable pulley spokes (6) connecting the cable pulley ring and hub, wherein the cable pulley spokes (6) are each formed from a single trapezoidal flat material bent multiple times over the cross-section of the cable pulley spoke (6), the wide base of which is arranged on the hub (4).

Description

Technical field [0001] The invention relates to a sheave as a guide between the lifting device and the rope load as described in the independent claim. Background technique [0002] The rope wheel is essentially a spoke wheel with one or more grooves on its circumference. The groove is used to guide the rope. Sheaves are usually made of high-quality steel, so they are extremely strong and wear-resistant. [0003] Generally, sheaves have maintenance-free bearings. As the lifting rope runs along the sheave, energy is lost due to internal rope friction and bearing friction. In principle, the sheave functions as a fixed pulley. Depending on the application, the nominal diameter of the sheave must be 40 to 120 times the nominal diameter of the rope. The nominal diameter of the sheave is the diameter of the sheave related to the base of the groove determined through mathematical operations. When the lifting speed of the system exceeds 4m / s, it is usually necessary to provide the sh...

Claims

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Application Information

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IPC IPC(8): F16H55/46F16H55/50
CPCF16H55/50F16H55/46F16H55/40
Inventor 沃尔夫冈·舒伯特休伯特·松德尔豪斯
Owner SIEMAG TECBERG