Hyperboloid spiral groove bearing

A spiral groove and hyperboloid technology, applied in the field of spiral groove bearings, can solve the problems of poor heat dissipation, slow bearing surface convection, low bearing capacity, etc., and achieve the effect of improving bearing capacity, improving working life and increasing contact surface area.

Pending Publication Date: 2017-06-20
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the shortcomings of traditional spiral groove bearings in the background technology that can only bear one-way axial load, low load-carrying capacity, slow convection on the...

Method used

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  • Hyperboloid spiral groove bearing
  • Hyperboloid spiral groove bearing

Examples

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Embodiment 1

[0018] like figure 1 As shown, the hyperboloid helical groove bearing of this embodiment includes a bearing main shaft I2 , an upper bearing seat 1 and a lower bearing seat 3 . The outer surfaces of the bearing main shaft I2, the upper bearing seat 1 and the lower bearing seat 3 are designed as a rotating single-leaf hyperboloid, and a spiral groove is opened on the rotating single-leaf hyperboloid. The cross-sectional shape of the spiral groove is rectangular, the number of spiral grooves is 7, and the helix angle of the spiral groove is 8°.

[0019] Compared with the conventional tapered spiral groove bearing, the present invention can not only bear radial load but also bear axial load at both ends, which improves the bearing capacity of the bearing. In addition, the invention also increases the contact surface area of ​​the main shaft of the bearing, improves the stability and heat dissipation of the bearing, reduces the requirement for the use of lubricants, and increases...

Embodiment 2

[0021] like figure 2 As shown, the hyperboloid helical groove bearing of this embodiment includes a bearing main shaft II 4 , an upper bearing seat 1 and a lower bearing seat 3 . The outer surface of the bearing main shaft II4, the upper bearing seat 1 and the lower bearing seat 3 is designed as a rotating single-leaf hyperboloid, and a spiral groove is opened on the rotating single-leaf hyperboloid. The cross-sectional shape of the spiral groove is triangular, the number of spiral grooves is 7, and the helix angle of the spiral groove is 8°.

[0022] Compared with the conventional tapered spiral groove bearing, the present invention can not only bear radial load but also bear axial load at both ends, which improves the bearing capacity of the bearing. In addition, the invention also increases the contact surface area of ​​the main shaft of the bearing, improves the stability and heat dissipation of the bearing, reduces the requirement for the use of lubricants, and increase...

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Abstract

The invention discloses a hyperboloid spiral groove bearing which comprises an upper bearing pedestal, a bearing main shaft and a lower bearing pedestal. The outer surface, matched with the upper bearing pedestal and the lower bearing pedestal, of the bearing main shaft is a rotary uniparted hyperboloid, and the rotary uniparted hyperboloid is provided with spiral grooves, and therefore the hyperboloid spiral groove bearing is formed. Compared with a common spiral groove bearing, the hyperboloid spiral groove bearing has the better stability and heat dissipation ability, the using requirements for a lubricating agent are lowered, the bearing can bear both the radial load and the axial load of two ends, and the bearing capacity of the bearing is improved.

Description

technical field [0001] The invention relates to a helical groove bearing, in particular to a hyperboloid helical groove bearing. Background technique [0002] The spiral groove bearing uses the spiral groove of a certain part of the rotating part to support the rotating body by the high pressure oil film generated during the operation. Widely used in high-speed occasions. However, the traditional spiral groove bearing has the disadvantages of only bearing one-way axial load and low bearing capacity. In addition, the traditional spiral groove bearing surface has slow convection and poor heat dissipation, which is easy to reduce the viscosity of the lubricant between the bearing and the bearing seat, resulting in the failure of the lubricant. SUMMARY OF THE INVENTION [0003] In order to solve the shortcomings of the traditional spiral groove bearing in the background technology, such as only one-way axial load, low bearing capacity, slow convection on the bearing surface,...

Claims

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Application Information

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IPC IPC(8): F16C33/02F16C35/02F16C37/00
CPCF16C33/02F16C35/02F16C37/00
Inventor 彭鹏汪久根
Owner ZHEJIANG UNIV
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