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Vertical-type pump self-circulation thin oil lubrication bearing body

A technology of thin oil lubrication and vertical pumps, which is applied in the direction of non-variable pumps, pumps, pump components, etc. It can solve the problems of affecting the capacity of vertical pumps, poor cooling and lubrication effect of bearings, and easy failure of bearings, etc., and achieves structural Simplicity, reduced bearing temperature, and high operational reliability

Pending Publication Date: 2020-05-08
西安航天泵业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the poor cooling and lubrication effect of the bearing in the bearing body of the existing vertical pump, the bearing is prone to failure, which affects the ability of the vertical pump to bear the load and adapt to the ability to transport high-temperature media

Method used

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  • Vertical-type pump self-circulation thin oil lubrication bearing body
  • Vertical-type pump self-circulation thin oil lubrication bearing body
  • Vertical-type pump self-circulation thin oil lubrication bearing body

Examples

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Embodiment

[0033] This embodiment provides a specific structure of a vertical pump self-circulating thin oil lubricating bearing body, such as figure 1 As shown, it includes a casing 1, an upper pressure cover 2, a lower pressure cover 8, a bearing 11 and a bearing sleeve 3 (the bearing 11 used in this embodiment is a double row angular contact ball bearing); the upper part of the casing 1 is installed on the Gland 2, lower gland 8 is installed on the lower part of the casing; the outer ring of the double row angular contact ball bearing is matched with the inner wall of the casing 1, and the inner ring of the double row angular contact ball bearing passes through the bearing sleeve 3 and the rotating shaft of the vertical pump 18 Fixed connection (in this embodiment, the bearing sleeve 3 and the rotating shaft 18 of the vertical pump are fixed by key connection);

[0034] The outer ring of the double row angular contact ball bearing is axially positioned through the upper gland 2 and th...

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Abstract

The invention relates to a vertical-type pump self-circulation thin oil lubrication bearing body. According to the bearing body, the lubrication effect of a bearing in the bearing body of a vertical pump is improved, and the capacities of bearing loads and adapting to conveying a high-temperature medium of the vertical pump are improved. The bearing body comprises a shell, an upper gland, a lowergland, the bearing and a bearing sleeve; the bearing sleeve is fixedly arranged between the bearing and a vertical pump rotating shaft; at least one oil outlet is formed in the part, higher than the bearing, of the upper portion of the bearing sleeve in the radial direction; the lower portion of the bearing sleeve is a thin-wall cylinder, and the lower end of the thin-wall cylinder is converged tobe close to the rotating shaft so as to form an oil inlet; and a lubricating oil channel is formed in the outer wall of the middle of the bearing sleeve in the axial direction, and the number of thelubricating oil channel is matched with that of the oil outlet. The oil inlet communicates with the oil outlet through the lubricating oil channel, cooling lubricating oil injected into the shell enters from the oil inlet, and under the centrifugal force generated by rotation and the guide action generated by the convergent oil inlet, the cooling lubricating oil flows out from the oil outlet so that the bearing can be fully cooled and lubricated.

Description

technical field [0001] The invention relates to a bearing body of a vertical pump, in particular to a self-circulating thin oil lubricating bearing body of a vertical pump. Background technique [0002] At present, most of the known vertical pump thin oil lubricated bearing bodies adopt the structure of an oil slinger with a water-cooled jacket. Lubricate bearings, which can be satisfied for light-loaded single-row bearings and pumps that transport medium at room temperature. It is difficult to meet the requirements for pumps with relatively large shocks and loads and high temperature of the transporting medium. Generally, double-row or triple-row is used for heavy loads. For angular contact ball bearings, only the oil splashed by the oil slinger cannot fully lubricate and cool the upper bearing. In engineering cases, the upper bearing often does not play a role in lubricating and cooling, resulting in high bearing temperature. When the pump conveys high temperature medium ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/046F04D29/06F04D29/58F04D29/62
CPCF04D29/0467F04D29/061F04D29/586F04D29/628
Inventor 张高正胡钟兵王金法王亮亮李迎春程建强张世存许文静刘慧娟刘金龙
Owner 西安航天泵业有限公司
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