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Bearing for ultralow-temperature liquid pump

A liquid pump and ultra-low temperature technology, which is applied in the field of liquid pump bearings, can solve the problems of unsatisfactory bearing work and long-term work of the bearing, and achieve the effects of low friction loss, no loss of precision, and extended bearing life

Inactive Publication Date: 2012-11-28
AVIC HARBIN BEARING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a bearing for an ultra-low temperature liquid pump to solve the problem that the existing ultra-low temperature liquid pump bearing is not provided with a cage, which cannot meet the needs of the bearing to work smoothly under the condition of ultra-low temperature and high speed operation, and the bearing cannot work under the condition of no lubrication. The problem of keeping a job long term

Method used

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  • Bearing for ultralow-temperature liquid pump
  • Bearing for ultralow-temperature liquid pump
  • Bearing for ultralow-temperature liquid pump

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specific Embodiment approach 1

[0009] Specific implementation mode one: combine Figure 1~Figure 3 Explain that the ultra-low temperature liquid pump bearing of this embodiment includes an outer ring 1, an inner ring 2 and a plurality of spherical rolling elements 3, the outer ring 1 is set on the inner ring 2 and the two are arranged concentrically, and the inner ring of the outer ring 1 A plurality of spherical dimples 4 are evenly distributed on the circumference where the circumferential surface is located in the middle and the outer circumference of the inner ring 2 is located in the middle. A plurality of spherical dimples 4 on the outer circumferential surface of the inner ring 2 are provided in one-to-one correspondence, and a spherical rolling body 3 is arranged in each corresponding spherical dimple 4, and the width of the outer ring 1 and the inner ring 2 is equal. The bearing also includes two annular cages 5 and a plurality of tubular rivets 6. The widths of the two annular cages 5 are equal, a...

specific Embodiment approach 2

[0011] Specific implementation mode two: combination figure 1 To illustrate, the tubular rivet 6 of this embodiment is a stainless steel hollow rivet in a soft state. The undisclosed technical features in this embodiment are the same as those in the first embodiment.

specific Embodiment approach 3

[0012] Specific implementation mode three: combination figure 1 Note that the sum of the widths of the two annular cages 5 in this embodiment is 43-4 mm. The undisclosed technical features in this embodiment are the same as those in the first or second specific embodiment.

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Abstract

The invention provides a bearing for an ultralow-temperature liquid pump, and relates to a bearing for a liquid pump, and the bearing is used for solving the problems of an existing bearing for ultralow-temperature liquid pump that the bearing fails to run smoothly under a running condition with ultralow temperature and high speed because of no retainer, and the bearing cannot run for a long time without being lubricated. According to the bearing for the ultralow-temperature liquid pump, two annular retaining frames have the same width; annular chambers are formed at two ends between an external ring and an internal ring, with each one comprising a circular retaining frame inside; a plurality of bucket holes are arranged at the positions the circular retaining frame corresponding to a plurality of spherical rolling bodies; a plurality of nail holes are uniformly distributed on the annular retaining frame along the circumference; tubular rivets are arranged in every correspondingly arranged nail holes on the two annular retaining frames, and two ends of the tubular rivets are arranged on the external end surfaces of corresponding annular retaining frames by flanging; the two annular retaining frames are connected through a plurality of tubular rivets; and the width of the external ring is less than the sum of the width of the two annular retaining frames. The bearing is applied to the ultralow-temperature liquid pump.

Description

technical field [0001] The invention relates to a liquid pump bearing and belongs to the field of bearing structure design. Background technique [0002] The bearing of the ultra-low temperature liquid pump works in the environment of -160 ℃, without lubrication during operation, the speed is relatively high (3400r / min) close to the limit speed, and the load is half of the rated load. Under the condition of high-speed operation, the bearing needs a cage to guide the rolling elements in order to work smoothly. The bearing can work for a long time without lubrication, and the cage must have a self-lubricating function to avoid damage to the rolling elements. Based on the above two necessary conditions, the existing bearings can no longer meet the requirements for use. Contents of the invention [0003] The purpose of the present invention is to provide a bearing for an ultra-low temperature liquid pump to solve the problem that the existing ultra-low temperature liquid pum...

Claims

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Application Information

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IPC IPC(8): F16C19/06F16C33/38F16C33/62F04B53/00
Inventor 勇泰芳贾秋生李锦红于清成李拓宇洪景奇韩东海翁世席李建辉张静静简海峰侯云凯
Owner AVIC HARBIN BEARING
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