Ball screw anti-dust device

A dust-proof device, ball screw technology, applied in transmission, chemical instruments and methods, belts/chains/gears, etc., can solve problems such as ineffectiveness, affecting the service life of the ball screw, and unable to prevent small iron filings from entering the nut, etc.

Active Publication Date: 2008-07-30
HIWIN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The wiper is to prevent the intrusion of foreign matter, but in order to compensate for processing errors and avoid excessive interference between the wiper and the screw, there will be a certain gap between the finished wiper and the screw, so various wipers on the market There has been no way to eliminate small dust or liquid. Therefore, when the ball screw is used in more precise machining, not only can it not prevent small iron filings from entering the nut, but the cutting fluid will gradually and continuously invade the nut, affecting the ball. The service life of the screw; al

Method used

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  • Ball screw anti-dust device
  • Ball screw anti-dust device
  • Ball screw anti-dust device

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Embodiment Construction

[0025] Please refer to the first embodiment of the present invention Figure 5 to Figure 7 , the ball screw dustproof device of the present invention is assembled on a receiving groove 21 on the end surface of the nut 20, and includes an absorber 30, an oil wiper 40, a wiper 50 and a cover plate 60 at a time from the inside to the outside; Its structural features are:

[0026] The absorber 30 is made of a liquid-absorbable material, such as non-woven fabric, sponge, felt or porous plastic. An absorbing hole 301 for the screw to pass is provided in the middle of the absorber 30, and the absorber 30 is formed by a convex Part 31 is in contact with the surface of the screw, and the absorption volume 301 is the same as or slightly smaller than the cross section of the screw;

[0027] The oil scraper 40 is made of rubber and is assembled on the outside of the absorber 30. There is an oil scraper hole 401 for the screw to pass through in the middle of the oil scraper 40. The first ...

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PUM

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Abstract

The invention discloses a ball screw dustproof device which is assembled on the end face of a screw cap, and the invention orderly comprises an absorbing part, an oil scraper slice and a wiping device. The absorbing part relates to materials which can absorb liquid, and the oil scraper slice uses an oil scraper part to contact with the surface of the screw. The wiping device is provided with a tooth wiping part which is correspondingly meshed with the surface of the screw, and in addition, protuberaces are arranged between the wiping device and the oil scraper slice to cause a radial through hole to be formed by the segmentation between the wiping device and the oil scraper slice. The invention has good resistance and exclusion effects for powdered scraps and liquid, prevents the lubricating liquid from running off from the screw cap, keeps the lubricating liquid and absorbs micro cutting liquid which passes through the oil scraper slice.

Description

technical field [0001] The invention relates to an accessory related to a ball screw, in particular to a dust-proof device for a ball screw. Background technique [0002] Today's ball screw is used more and more in industry. In addition to the high-precision effect of linear feed transmission, it also has the advantages of low friction loss rate, high energy conversion rate, low noise and high rigidity. Therefore, the importance of the ball screw to various industrial application machines and tools cannot be overstated. [0003] In order to allow the balls between the screw and the nut to circulate continuously and eliminate stress, the current ball screw design has various dust-proof devices at both ends of the nut; and different designs have their defects. Therefore, how to target the anti-dust The development and improvement of dust devices to produce more competitive products has naturally become the focus of the current industry. [0004] In the past, the dust-proof d...

Claims

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Application Information

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IPC IPC(8): F16H25/22B08B1/04
Inventor 刘家铭
Owner HIWIN TECH
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