CN101340119B - Bearing pretension construction of electricity driving turbo cooler - Google Patents
Bearing pretension construction of electricity driving turbo cooler Download PDFInfo
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- CN101340119B CN101340119B CN2008101468920A CN200810146892A CN101340119B CN 101340119 B CN101340119 B CN 101340119B CN 2008101468920 A CN2008101468920 A CN 2008101468920A CN 200810146892 A CN200810146892 A CN 200810146892A CN 101340119 B CN101340119 B CN 101340119B
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- bearing
- clapboard
- preloading
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Abstract
The invention belongs to motor technology, and relates to a bearing preloading structure of an electric drive turbine cooler. The bearing preloading structure mainly consists of a wave spring, a bush, a fuel slinger and parts like bearings, separators, a motor shell body, and the like, and can provide proper preloading force for bearings so as to assure the normal working condition of products. The invention uses the parts like the wave spring, the bush, the fuel slinger, and the like, for being matched with the parts like the bearings, the shell body, the separators, and the like, and applies a preloading force to an angular contact ball bearing so that the product can be in normal working condition when the rotation speed is high up to 40000r/min. The preloading structure is characterized by simple structure, light weight, strong applicability, and the like, and is particularly applicable to high-speed motor products lubricated by fluid lubricating oil and the oil of which is provided by oil wick.
Description
Technical field
The invention belongs to motor technology, relate to a kind of bearing pre-tightened structure of electric-driven turbine cooler.
Background technology
The bearing that present common slowspeed machine adopts does not need pre-pressing structure.Understand from the data that can collect, the high-speed electric expreess locomotive of external design, what some supported employing is that air foil is held or electromagnetic bearing, these two kinds of bearings all adopt journal bearing and thrust bearing separate mode, do not need pre-pressing structure equally.And the high-speed electric expreess locomotive of employing angular contact ball bearing generally adopts the oil pump feed mode, and pre-pressing structure is different with the present invention.At angular contact bearing pre-pressing structure design aspect, traditional pretightning force part that applies generally adopts helical spring in addition, has the big shortcoming that axially takes up room, and is not suitable for the pretension of motor inner bearing.
Summary of the invention
The purpose of this invention is to provide the bearing pre-tightened structure that a kind of volume is little, in light weight, simple in structure, be applicable to high speed electric-driven turbine cooler.Technical solution of the present invention is, electric machine casing is positioned at the centre position of bearing pre-tightened structure, left clapboard and right clapboard are connected to the two ends of electric machine casing, the inside of the electric machine casing between left clapboard and the right clapboard connects wavy spring, left external bushing, left bearing, left disc, rotor assembly, right disc, right bearing and right external bushing successively from left clapboard.
Beneficial effect of the present invention
The present invention is directed to the characteristics of electric-driven turbine cooler, adopt parts such as wavy spring, lining, disc to cooperate with parts such as bearing, housing, dividing plates, the diagonal angle contact ball bearing applies pretightning force, make product can the high rotating speed of 40000r/min under operate as normal.Characteristics such as that the present invention has is simple in structure, in light weight, applicability is strong, the high-speed electric expreess locomotive product that be specially adapted to adopt liquid oil lubrication, adopts wicking.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
The bearing pre-tightened structure of this product as shown in Figure 1, electric machine casing 7 is positioned at the centre position of bearing pre-tightened structure, left clapboard 1 and right clapboard 11 are connected the two ends of electric machine casing 7, constitute the main force support structure of product, the inside of the electric machine casing 7 between left clapboard 1 and the right clapboard 11 connects wavy spring 2, left external bushing 3, left bearing 4, left disc 5, rotor assembly 6, right disc 8, right bearing 9 and right external bushing 10 successively from left clapboard 1.Be installed in the wavy spring 2 in the left clapboard 1 owing to be compressed the power of generation along rotor axial, the size of power is by the decrement control of spring.The axial force that spring produces is applied to left on the left clapboard 1, be delivered to the outer shroud of left bearing 4 to the right by left external bushing 3, be delivered to ring in the left bearing 4 by steel ball in the left bearing 4 again, then successively by left disc 5, rotor assembly 6, right disc 8 is delivered to the interior ring of right bearing 9 to the right, be delivered to right bearing 9 outer shrouds by steel ball in the right bearing 9 again, the power of outer shroud is delivered to right clapboard 11 by right external bushing 10, the power that final wavy spring 2 produces is born by left clapboard 1 and right clapboard 11, and left bearing 4 and right bearing 9 since transmit axial force make left bearing 1 in, in outer shroud and the right bearing 9, outer shroud obtains pretension.
Claims (1)
1. the bearing pre-tightened structure of an electric-driven turbine cooler, it is characterized in that, electric machine casing (7) is positioned at the centre position of bearing pre-tightened structure, left clapboard (1) and right clapboard (11) are connected to the two ends of electric machine casing (7), the inside of the electric machine casing (7) between left clapboard (1) and the right clapboard (11) connects wavy spring (2), left external bushing (3), left bearing (4), left disc (5), rotor assembly (6), right disc (8), right bearing (9) and right external bushing (10) successively from left clapboard (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101468920A CN101340119B (en) | 2008-08-28 | 2008-08-28 | Bearing pretension construction of electricity driving turbo cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101468920A CN101340119B (en) | 2008-08-28 | 2008-08-28 | Bearing pretension construction of electricity driving turbo cooler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101340119A CN101340119A (en) | 2009-01-07 |
| CN101340119B true CN101340119B (en) | 2010-08-25 |
Family
ID=40214106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101468920A Active CN101340119B (en) | 2008-08-28 | 2008-08-28 | Bearing pretension construction of electricity driving turbo cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101340119B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964573A (en) * | 2010-11-11 | 2011-02-02 | 无锡市中达电机有限公司 | Bearing configuration structure of high-voltage three-phase asynchronous motor |
| DE102013209202A1 (en) * | 2013-05-17 | 2014-11-20 | Robert Bosch Gmbh | Drive device, in particular adjusting device in a vehicle |
| CN104165185A (en) * | 2013-05-17 | 2014-11-26 | 何君 | Roll-rolling composite bearing system for high-speed motor and high-speed electric rotary machine |
| CN111711307B (en) * | 2020-06-23 | 2021-05-07 | 珠海格力电器股份有限公司 | Bearing pre-tightening structure of motor and motor with same |
-
2008
- 2008-08-28 CN CN2008101468920A patent/CN101340119B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101340119A (en) | 2009-01-07 |
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