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Sheave

A sheave and rope groove technology, applied in belts/chains/gears, hoisting devices, elements with teeth, etc., can solve problems such as damage, and achieve the effect of restraining the reduction of operation efficiency and the increase of cost

Active Publication Date: 2019-09-03
相浦机械株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On the other hand, the rope wound around the sheave may be damaged by long-term use due to friction with the rope groove of the sheave due to the rotation in and out of the rope wound on the sheave.

Method used

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Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0048] Figure 1A , 1B It is a figure explaining the sheave of this embodiment. Figure 1A is the top view of the sheave, Figure 1B yes Figure 1A Sectional view of line 1B-1B.

[0049] Such as Figure 1A , 1B As shown, the sheave 100 of this embodiment is equipped with the metal sheave main body 1 whose planar shape is circular. The sheave main body 1 is integrally formed by casting: a protrusion 3, which is formed in the central part of the sheave main body 1, with a shaft hole 2 penetrating through the thickness direction (axial direction); Near the outer peripheral edge of the sheave 1; a plurality of spoke parts 5 extending in the radial direction of the sheave main body 1 to connect the boss part 3 and the outer peripheral part 4. In addition, the manufacturing method of the sheave main body 1 is not limited to casting, Cutting processing etc. can also be used.

[0050] The protrusion 3 is formed in a cylindrical shape, and an annular recess 6 is formed on one end s...

no. 2 Embodiment approach

[0070] Next, a second embodiment of the present invention will be described with reference to the drawings.

[0071] Figure 4 It is a plan view which shows a part of the sheave in 2nd Embodiment of this invention. Figure 5 yes Figure 4 5-5 line sectional view. Figure 6 is a plan view of the protection component. Figure 7 yes Figure 6 The 7-7 line sectional view. Figure 8 It is a perspective view of a protection part. Figure 9 It is a perspective view which shows the modification of the protection member in 2nd Embodiment of this invention.

[0072] Such as Figure 4 , 5 As shown, the sheave 200 in this embodiment is installed in a crane apparatus etc. similarly to the sheave 100 in 1st Embodiment, and is used in the state in which the rope was wound. The sheave 200 is provided with the sheave main body 1, and the groove protection part G which is provided in the rope groove 20 of the sheave main body 1, and protects the inner surface of the rope groove 20. As sh...

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PUM

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Abstract

The purpose of the present invention is to provide a sheave which enables a rope to be used for an extended life, can prevent an increase in cost, and can prevent a reduction in work efficiency. A sheave (100, 200) is provided with: a metallic sheave body (1) having a rope groove (20) formed in the outer periphery (4) thereof, the rope groove (20) allowing a rope to be wound therearound; and a groove protection section (G) consisting of resin, the groove protection section (G) being removably mounted in the rope groove and extending along the rope groove.

Description

technical field [0001] The present invention relates to sheaves provided on machinery such as deck cranes. [0002] this application claims priority based on Japanese Patent Application No. 2012-233150 for which it applied to Japan on October 22, 2012, The content is used here. Background technique [0003] Conventionally, for example, deck cranes have been widely used, as shown in Patent Document 1, which lifts and lowers the suspended cargo by hooking a hook provided on a rope to the suspended cargo and turning the rope in and out. In various crane devices such as deck cranes, many sheaves for turning in and out of guide ropes are provided. Since a large load acts on the sheave, metal sheaves are widely used in order to be able to bear such a high load. [0004] On the other hand, since the rope wound around the sheave rotates in and out to cause friction with the rope groove of the sheave, it may be damaged by long-term use. Therefore, in order to prolong the life of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H55/48B66D3/04F16H55/50
CPCB66D3/04F16H55/48F16H55/50
Inventor 中根宽冈崎羊平
Owner 相浦机械株式会社