Linear electro-mechanical actuator
US-2016356367-A1 · Dec 8, 2016 · US
Ball screw with a dust-proof and lubricating device
US8931358B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8931358-B2 |
| Application number | US-201213548215-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 13, 2012 |
| Priority date | Jul 13, 2012 |
| Publication date | Jan 13, 2015 |
| Grant date | Jan 13, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A ball screw with a dust-proof and lubricating device comprises: a screw, a nut, a plurality of balls, an oil-absorbing member, a return unit, and two dust-proof members. The nut includes an axial oil-guiding hole, a plurality of radial oil holes in communication with the oil-guiding hole and the helical groove of the nut, and an oil-feeding hole in communication with one of the radial oil holes. The oil-absorbing member is disposed in the oil-guiding hole and the radial oil holes. The return unit is disposed in the nut to enable the turning and circulation of the balls. The two dust-proof members are located at both ends of the axial hole. The ball screw can still be lubricated when it is disposed in a vertical position, and the dust-proof and lubricating device which won't add axial length to the nut.
First claim
Opening claim text (preview).
What is claimed is: 1. A ball screw with a dust-proof and lubricating device comprising: a screw formed on an outer surface thereof with an outer helical groove; a first nut mounted on the screw, and formed with a first axial hole with a first axis, a first inner helical groove which is formed in an inner surface of the first axial hole and cooperates with the outer helical groove of the screw to define a first load path, a first oil-guiding hole parallel to the first axis, a fi…
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Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Cross-Sectional Technologies · mapped topic
- F16H57/0497Primary
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US8931358B2 cover?
- A ball screw with a dust-proof and lubricating device comprises: a screw, a nut, a plurality of balls, an oil-absorbing member, a return unit, and two dust-proof members. The nut includes an axial oil-guiding hole, a plurality of radial oil holes in communication with the oil-guiding hole and the helical groove of the nut, and an oil-feeding hole in communication with one of the radial oil hole…
- Who is the assignee on this patent?
- Chang Che Kang, Jan Dian-Yu, Hiwin Tech Corp
- What technology area does this patent fall under?
- Primary CPC classification F16H57/0497. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 13 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).