CN207184229U - Rolling supporting mechanism for rotor shaft of submersible linear motor - Google Patents
Rolling supporting mechanism for rotor shaft of submersible linear motor Download PDFInfo
- Publication number
- CN207184229U CN207184229U CN201721092771.3U CN201721092771U CN207184229U CN 207184229 U CN207184229 U CN 207184229U CN 201721092771 U CN201721092771 U CN 201721092771U CN 207184229 U CN207184229 U CN 207184229U
- Authority
- CN
- China
- Prior art keywords
- bearing
- mover
- supporting mechanism
- electric motor
- linear electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 15
- 238000005096 rolling process Methods 0.000 title claims abstract description 14
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 4
- 238000007747 plating Methods 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 3
- 238000005461 lubrication Methods 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 3
- 238000007654 immersion Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a latent oily linear electric motor active cell axle roll supporting mechanism, including bearing, set up a plurality of bearing grooves at certain interval distance of active cell axle axial, angle such as radial, will dive oily linear electric motor active cell axle slip and support and change roll supporting mechanism into, improved linear electric motor reliability index by a wide margin. The life of the rolling friction is more than ten times that of the sliding friction. The coefficient of friction is one tenth or one twentieth of the coefficient of sliding friction. The bearing life is about 2 to 10 ten thousand hours with reasonable load and ideal lubrication. Theoretically, the service life of the composite material can reach more than 5 years.
Description
Technical field
The utility model belongs to industrial gas oil DP technology technical field, is related to the rolling of oil-submersible linear electric motor mover axle
Dynamic supporting mechanism.
Background technology
Concentricity between cylindrical shape oil immersion line motor stator inner hole and mover is the important of influence linear electric motors life-span
Link.The cylindrical supporting structure between stator inner hole of mover in linear motor stator electric endoporus is to influence linear electric motors
The key structure in life-span.At present oil-submersible linear electric motor mover using sliding bearing support, but elongated mover axle body its own
Elastic deformation it is larger, and stator inner hole linearity level is not high, and the gap between support ring and stator inner hole can be caused excessive
Larger lateral magnetic pull is generated, influences linear motor pushing force output.In addition, the concentricity between mover and stator influences electricity
Support member on motor-driven son is cylindrical and the gap length of diameter of stator bore selects.The size of gap width can be directly resulted on support member
The normal pressure that rubs size, change the conditions such as friction temperature.It is in line that the wear extent of support member in itself and the relation of friction time, which are not,
Property change.Therefore the uncertainty of the above using sliding bearing support electric mover be present.
The problem of existing for the support of mover sliding bearing, devises oil-submersible linear electric motor mover axle rolling supporting mechanism.
Utility model content
The utility model purpose is to provide a kind of oil-submersible linear electric motor mover axle rolling supporting mechanism, reduction friction and side
Lost to magnetic pull, improve the oil immersion line motor life-span.
The utility model uses following scheme to achieve the above object：
A kind of oil-submersible linear electric motor mover axle rolling supporting mechanism, including needle bearing, in mover axle axial direction certain intervals
Distance, some bearing grooves are radially angularly opened up, needle bearing is arranged in bearing groove and supported as mover, needle bearing foreign steamer
It is wide consistent with mover axle circle curvature.
Further, mover axle axial direction certain intervals distance, radially open up some bearing grooves every 120 °.
Further, bearing groove is opened in electric mover each unit mover magnet steel interval.
Further, needle bearing is arranged in bearing groove by pin, by bearing mounting pin by the way of argon arc welding
Nail is fixed in bearing groove.
Further, electronics stator is process using silicon steel rod, stator inner hole plating hard chrome.
Oil-submersible linear electric motor mover axle rolling supporting mechanism of the present utility model, including needle bearing, in mover axle axial direction
Certain intervals distance, some bearing grooves are angularly radially opened up, oil-submersible linear electric motor mover axle sliding support is changed to roll branch
Support mechanism, linear electric motors reliability index greatly improved.The life-span of rolling friction is more than ten times of sliding friction.Friction system
Number is 1/10th or 1/20th of sliding friction coefficient.Load is reasonable, the preferable bearing life of lubrication is about 2 ten thousand to 10
Ten thousand hours.The life requirements of more than 5 years can be reached in theory.
Further, stator is using the higher silicon steel rod processing of hardness and magnetic property, endoporus plating hard chrome.In mover axial direction
At certain intervals, the outline needle bearing consistent with mover axle circle curvature is radially installed every 120 °.
Brief description of the drawings
Fig. 1 is the utility model oil-submersible linear electric motor mover axial section
Fig. 2 is mover needle bearing radial cutaway view
In figure：1- mover magnet steel；2- electric movers；3- needle bearings；4- bearing grooves；5- mover axles；6- pins.
Embodiment
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Reference picture 1, Fig. 2 further illustrate to embodiment of the present utility model：
Needle bearing 3 is installed in advance on electric mover 2 at designed bearing groove 4 in Fig. 1, and each unit mover
The interval of magnet steel 1 supports as mover.
Stator is using the higher silicon steel rod processing of hardness and magnetic property, endoporus plating hard chrome.Between mover is axially certain
Every place, the outline needle bearing consistent with mover axle circle curvature is radially installed every 120 °.
Fig. 2 bearing grooves 4 are opened in the interval of 2 each unit mover magnet steel of electric mover 1.Needle bearing 3 is installed by pin
In bearing groove 4, bearing installation pin 6 is fixed in bearing groove 4 by the way of argon arc welding.
It should be understood by those skilled in the art that the utility model is not restricted to the described embodiments, above-described embodiment and
Simply illustrate principle of the present utility model described in specification, on the premise of the spirit and scope of the utility model is not departed from,
The utility model also has various changes and modifications, and these changes and improvements both fall within claimed the scope of the utility model
It is interior.The utility model requires protection scope is by appended claims and its equivalent thereof.
Claims (5)
- A kind of 1. oil-submersible linear electric motor mover axle rolling supporting mechanism, it is characterised in that：Including needle bearing (3), in mover axle (5) axial certain intervals distance, radial direction angularly open up some bearing grooves (4), and needle bearing (3) is arranged in bearing groove (4) Supported as mover, needle bearing (3) outline is consistent with mover axle (5) circle curvature.
- 2. oil-submersible linear electric motor mover axle rolling supporting mechanism according to claim 1, it is characterised in that：In mover axle (5) axial certain intervals distance, some bearing grooves (4) are radially opened up every 120 °.
- 3. oil-submersible linear electric motor mover axle rolling supporting mechanism according to claim 1 or 2, it is characterised in that：Bearing groove (4) it is opened in electric mover (2) each unit mover magnet steel (1) interval.
- 4. oil-submersible linear electric motor mover axle rolling supporting mechanism according to claim 3, it is characterised in that：Needle bearing (3) it is arranged on by pin in bearing groove (4), bearing is installed into pin (6) by the way of argon arc welding is fixed on bearing groove (4) in.
- 5. oil-submersible linear electric motor mover axle rolling supporting mechanism according to claim 3, it is characterised in that：Electronics stator is adopted It is process with silicon steel rod, stator inner hole plating hard chrome.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721092771.3U CN207184229U (en) | 2017-08-29 | 2017-08-29 | Rolling supporting mechanism for rotor shaft of submersible linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721092771.3U CN207184229U (en) | 2017-08-29 | 2017-08-29 | Rolling supporting mechanism for rotor shaft of submersible linear motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207184229U true CN207184229U (en) | 2018-04-03 |
Family
ID=61739459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721092771.3U Active CN207184229U (en) | 2017-08-29 | 2017-08-29 | Rolling supporting mechanism for rotor shaft of submersible linear motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207184229U (en) |
-
2017
- 2017-08-29 CN CN201721092771.3U patent/CN207184229U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |