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Key bar type pneumatic shaft

A technology of pneumatic shafts and key strips, applied in the directions of shafts, shafts and bearings, mechanical equipment, etc., can solve the problems of heavy weight, low working efficiency, and large shaft body.

Inactive Publication Date: 2013-02-13
WUJIANG SANHE FINE MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The winding and unwinding of roll products usually use a mechanical clamping shaft, which is usually large in size, heavy in weight, and low in operating efficiency

Method used

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  • Key bar type pneumatic shaft

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with accompanying drawing and embodiment:

[0014] As shown in the figure, a key bar type pneumatic shaft has a cylindrical body 1 . Among them: the main body 1 is provided with a middle hole 2 penetrating both ends along the direction of its axis, and several evenly arranged key strips 3 are movably arranged on the outer peripheral surface of the main body 1. The key strips 3 can receive gas in the middle hole 2. It protrudes along the radial direction of the body 1 when pressed.

[0015] Generally speaking, the material of the body is No. 45 steel, and when the length of the body 1 is less than 1500mm, the material of the body 1 is more suitable to be aluminum alloy.

[0016] The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention...

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Abstract

The invention relates to a key bar type pneumatic shaft. The key bar type pneumatic shaft has a cylindrical body, the body is provided with a mesopore penetrating through two ends of the body along the shaft axis direction of the body, the outer peripheral surface of the body is movably provided with a plurality of uniformly-arrayed key bars, and the key bars can protrude along the radial direction of the body when a tank gas in the mesopore is pressurized. The key bar type pneumatic shaft has a simple structure, can cooperate with a shaft sleeve to realize the application to stripping, printing, re-reeling, coating, applying, bag making, papermaking or other relevant reeling and sending machines having high torques and high bearing weights.

Description

technical field [0001] The invention relates to a key bar type air pressure shaft. Background technique [0002] The winding and unwinding of roll products usually use a mechanical clamping shaft, which usually has a large shaft body, heavy weight, and low operating efficiency. For this reason, there is an urgent need for a pneumatic shaft that is not easily damaged, widely used, and has low manufacturing cost. Contents of the invention [0003] The object of the present invention is to provide a key bar type pneumatic shaft. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is: [0005] A key bar type pneumatic shaft, which has a cylindrical body, the body is provided with a middle hole passing through both ends along the direction of its axis, and several uniformly arranged holes are movable on the outer peripheral surface of the body A key bar, the key bar can protrude along the radial direction of the body when the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C3/02
Inventor 张政华
Owner WUJIANG SANHE FINE MACHINERY