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Static pressure cone bearing
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A technology of cones and bearings, which is applied in the mechanical field, can solve the problems of high processing precision and high processing cost, and achieve the effect of good concentric fit
Inactive Publication Date: 2018-06-12
UNIV OF SHANGHAI FOR SCI & TECH
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Summary
Abstract
Description
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Application Information
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Problems solved by technology
Because there is a certain gap between the concave and convex cone surfaces, the convex cone floats and is in a non-contact state when rotating. However, the machining accuracy of the concave cone surface and the cavity of the cone bearing is high, and the processing cost is high.
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Embodiment 1
[0028] Such as figure 1 As shown, the static pressure cone bearing 100 includes a housing assembly 10 , a rotating member 20 and a support seat 30 .
[0029] In this embodiment, the containing component 10 is such as figure 2 The shown receiving part 11 includes a concave tapered surface 111 , an outer surface 112 , a plurality of channels 113 and a through hole 114 .
[0030] However, in some occasions where the shaft does not need to pass through, the receiving part 11 may not be provided with the through hole 114 . In this embodiment, the receiving part 11 is provided with a through hole 114 for passing a shaft in the horizontal direction at the center of the inner concave tapered surface 111, and the receiving part 10 is made of metal.
[0031] Such as figure 2 , image 3 As shown, the channel 113 is provided in the inner wall of the receiving part 11 and runs through the inner concave tapered surface 111 and the outer surface 112. The cavity 113 a and the first hol...
Embodiment 2
[0040] Such as Figure 5 As shown, the other structures of this embodiment are the same as those of the first embodiment, except that the containing assembly 10 includes a containing part 11 and a plurality of bushings 12 .
[0041] Such as Figure 5 As shown, the receiving part 11 includes a concave tapered surface 111 , an outer surface 112 , a plurality of channels 113 and a through hole 114 .
[0042]However, in some occasions where the shaft does not need to pass through, the receiving part 11 may not be provided with the through hole 114 . In this embodiment, the receiving part 11 is provided with a through hole 114 for passing the shaft in the horizontal direction at the center of the inner concave tapered surface 111, and the receiving part 11 is made of metal.
[0043] The channel 113 is arranged in the inner wall of the container 11 and runs through the inner concave tapered surface 111 and the outer surface 112. The channel 113 includes a first concave cavity 113a...
Embodiment 3
[0047] Other structures of this embodiment are the same as those of Embodiment 2, except that the shape of the bushing cavity 121 is any one of circle, ellipse, square, rectangle and trapezoid.
[0048] The shape of the opening of the bushing cavity 121 in the third embodiment is oval.
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Abstract
The invention discloses a static pressure cone bearing which comprises a supporting base, a containing part and a rotating part. The containing part is provided with an inner concave cone face and anouter surface. The containing part is further provided with multiple channels through which fluid passes. The channels are arranged in the inner wall of the containing part and penetrate through the inner concave cone face and the outer surface. Each channel comprises a first concave cavity arranged on the inner concave cone face and concaved inwards and a first hole channel through which the first concave cavity communicates with the outer surface. The multiple first concave cavities are arranged on the inner concave cone face along at least one arrangement plane which is the plane perpendicular to the axis of the rotating part. The supporting base is provided with a supporting base inner cavity matched with the outer surface of the containing part. The containing part is arranged in thesupporting base inner cavity and in interference fit with the supporting base inner cavity. The supporting base is provided with at least one supporting base channel communicating with the first holechannels. According to the static pressure cone bearing, in the working state, a convex cone makes no contact with the concave cone face when rotated, and therefore the dynamic rotation precision of arotating shaft on the cone bearing can be improved by adopting the gas or liquid static pressure technology.
Description
technical field [0001] The invention belongs to the field of machinery, and in particular relates to a static pressure cone bearing. Background technique [0002] Most of the revolving pairs in the prior art are in a contact state when rotating, and the rotating precision and efficiency are not high. [0003] Bearings that use gas or hydrostatic technology combined with a cone structure are currently one of the most effective ways to improve the rotation accuracy of the spindle. [0004] According to the basic principle of gas (air) or liquid (oil) static pressure technology, let the liquid or gas medium with a certain pressure enter into the multiple chambers of the concave cone surface of the cone bearing respectively, and the external throttle can Regulates fluid pressure and flow. Because there is a certain gap between the concave and convex cone surfaces, the convex cone floats and is in a non-contact state when rotating. However, the machining accuracy of the concave...
Claims
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Application Information
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