CN103532289A - Bearing seat end cover and motor - Google Patents
Bearing seat end cover and motor Download PDFInfo
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- CN103532289A CN103532289A CN201310533376.4A CN201310533376A CN103532289A CN 103532289 A CN103532289 A CN 103532289A CN 201310533376 A CN201310533376 A CN 201310533376A CN 103532289 A CN103532289 A CN 103532289A
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- inspection hole
- end cap
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Abstract
The invention provides a bearing seat end cover. The bearing seat end cover comprises an end cover main body and a sealing plug, wherein the end cover main body is formed with a peep hole which is communicated with a bearing mounting cavity of the motor; the sealing plug is detachably arranged in the peep hole; the sealing plug is in sealing coordination with the end cover main body. When the bearing of the motor which uses the bearing seat end cover is maintained, the bearing configuration related components such as the bearing seat end cover are not required to be completely disassembled; the sealing plug is only disassembled from the peep hole; then the bearing situation can be detected through the peep hole to inspect the bearing appearance and extract the bearing oil sample. The operation is simple and feasible, and the operation difficulty for bearing maintenance is reduced. In the meantime, the tool for disassembling the sealing plug is very simple, and is convenient to disassemble the sealing plug in a narrow operation space such as restrained operation space on the tower, so that the operation maintainability of various large motor bearings can be greatly improved, and the requirement to maintain the bearing of the motor in the narrow operation space can be met. The invention further provides the motor having the bearing seat end cover.
Description
Technical field
The present invention relates to bearing applied technical field, more particularly, relate to a kind of bearing cover, the invention still further relates to a kind of motor with above-mentioned bearing cover.
Background technology
Along with expanding economy, the application of large-size machine is more and more extensive.In order to guarantee the operational reliability of large-size machine, need regularly its bearing to be safeguarded.In order to realize the protection to bearing, bearing is standing outward puts the structures such as bearing cover, bearing end cover or back-up ring, below these structures is referred to as to bearing cover at present.
Due to bearing cover by bearing seal at motor internal, so when motor is carried out to operation maintenance, the bearing such as bearing cover configuration associated components need to be disassembled and could carry out detailed inspection to bearing, and then detect the operation conditions of bearing.This disassembling section more complicated, need special tool(s) frock, particularly in the operating environment of narrow space, further strengthened the difficulty of dismounting, be difficult to meet the maintenance needs of bearing.
The bearing maintenance of direct-drive permanent magnet wind power generator of take is example, and direct-drive permanent magnet wind power generator need to be arranged on tower when application, and because this motor diameter is larger, the expense of tower up and down that directly lifts motor is huge; Be subject to the restriction of maintenance cost, need under the prerequisite of avoiding motor to pull down from tower, carry out bearing maintenance.So this motor can only carry out operation maintenance on tower, need to take bearing cover apart on tower, to carry out the operations such as grease sampling, operation conditions detection, and then complete bearing fault detection.But, due to the bearing cover of this motor not only greatly but also heavy, and the operating space on tower is limited, has strengthened the difficulty of bearing cover dismounting, has restricted the maintenance work of tower upper bearing (metal).
In sum, how reducing the operation easier of bearing maintenance, to meet the demand of motor being carried out bearing maintenance in narrow and small operating space, is current those skilled in the art technical problems urgently to be resolved hurrily.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of bearing cover, to reduce the operation easier of bearing maintenance, thereby meet the demand of motor being carried out bearing maintenance in narrow and small operating space.
Another object of the present invention is to provide a kind of motor with above-mentioned bearing cover.
In order to achieve the above object, the invention provides following technical scheme:
, comprising:
End cap body, offers the inspection hole that can be communicated with the bearing installation cavity of motor on described end cap body; With
Be removably disposed in the sealing plug in described inspection hole, described sealing plug and described end cap body are sealed and matched.
Preferably, above-mentioned bearing cover also comprises the cover plate that is positioned at described sealing plug outside, can stops described sealing plug to skid off from described inspection hole, and described cover plate is removably fixed on the outer face of described end cap body and is blocking described inspection hole.
Preferably, in above-mentioned bearing cover, described cover plate is fixed on the outer face of described end cap body by hexagon socket cap head screw.
Preferably, in above-mentioned bearing cover, described sealing plug and described end cap body are sealed and matched by sealing gasket, and described sealing gasket is pressed on the junction of described end cap body and described sealing plug by described cover plate.
Preferably, in above-mentioned bearing cover, on the outer face of described sealing plug, be also provided with the projection that auxiliary described sealing plug is extracted from described inspection hole, and on described cover plate, offer the perforation of passing for described projection.
Preferably, in above-mentioned bearing cover, the central axis of described inspection hole is parallel with the axis of described end cap body.
Preferably, in above-mentioned bearing cover, described inspection hole is the bellmouth to close bearing one end convergent Zi the one end away from bearing, the conical plug of described sealing plug for matching with described bellmouth.
Preferably, in above-mentioned bearing cover, the number of described inspection hole is at least two, and described inspection hole being circumferentially uniformly distributed along described end cap body.
Preferably, in above-mentioned bearing cover, described sealing plug is rubber stopper, and is interference fit between this rubber stopper and described inspection hole.
From above-mentioned technical scheme, can find out, bearing cover provided by the invention comprises end cap body and sealing plug, wherein, offer the inspection hole that can be communicated with the bearing installation cavity of motor on end cap body, sealing plug is removably disposed in above-mentioned inspection hole and is sealed and matched with end cap body.
While applying bearing cover of the present invention, first utilize bolt that bearing cover is arranged on the bearing pedestal of motor, and end cap body is coordinated with the rotating shaft sealing of motor.Because sealing plug and end cap body are sealed and matched, so above-mentioned bearing cover has good sealing, can effectively prevent seepage, met the operation demand of motor.
Because above-mentioned bearing cover inspection hole after taking off sealing plug can be communicated with the bearing installation cavity of motor, so can observe the structure in bearing installation cavity by inspection hole, and then can detect the operation conditions of bearing, can also directly measure the crucial gap of part or spacing, can extract the oil sample of operation bearing simultaneously, thereby can detect in detail bearing, so can safeguard bearing by above-mentioned inspection hole.
In summary, adopt the motor of bearing cover of the present invention when carrying out bearing maintenance, without the bearing configuration associated components such as bearing cover are all disassembled, only sealing plug need be pulled down from inspection hole and can be detected bearing situation by inspection hole, can carry out the inspections such as bearing outward appearance, the extraction of bearing oil sample.After having checked, refilled sealing plug and can complete bearing maintenance work, operation is simple, reduced the operation easier of bearing maintenance; Simultaneously, because the size of sealing plug is less, extracting tool is fairly simple, be convenient to dismantle in operating space on as limited tower in narrow and small operating space, greatly improve the maintainability of all kinds of large-size machine bearing operations, thereby met the demand of motor being carried out bearing maintenance in narrow and small operating space.
In addition, above-mentioned bearing cover has also been saved manpower and materials, and then has reduced bearing maintenance cost.
The present invention also provides a kind of motor, comprises rotating shaft, and bearing pedestal is arranged on the bearing between described rotating shaft and described bearing pedestal and is arranged on the bearing cover on described bearing pedestal, and described bearing cover is above-mentioned any bearing cover; Because above-mentioned bearing cover has above-mentioned effect, the motor with above-mentioned bearing cover has same effect, therefore repeat no more herein.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the bearing cover that provides of the embodiment of the present invention;
Fig. 2 is the local amplification assumption diagram of B in Fig. 1;
Fig. 3 is that the A of Fig. 1 is to partial view.
Embodiment
The embodiment of the present invention provides a kind of bearing cover, has reduced the operation easier of bearing maintenance, thereby has met the demand of motor being carried out bearing maintenance in narrow and small operating space.
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to accompanying drawing 1-3, the bearing cover that the embodiment of the present invention provides comprises end cap body 1 and sealing plug 3, wherein, offer the inspection hole that can be communicated with the bearing installation cavity C of motor on end cap body 1, sealing plug 3 is removably disposed in above-mentioned inspection hole and is sealed and matched with end cap body 1.
While applying the bearing cover of the present embodiment, first utilize bolt 2 that bearing cover is arranged on the bearing pedestal 8 of motor, and end cap body 1 and the rotating shaft 7 of motor are sealed and matched.Because sealing plug 3 and end cap body 1 are sealed and matched, so above-mentioned bearing cover has good sealing, can effectively prevent seepage, met the operation demand of motor.
Because above-mentioned bearing cover can be communicated with the bearing installation cavity C of motor taking off the rear inspection hole of sealing plug 3, so can observe the structure in bearing installation cavity C by inspection hole, and then can detect the operation conditions of bearing, can also directly measure the crucial gap of part or spacing, can extract the oil sample of operation bearing simultaneously, thereby can detect in detail bearing, so can safeguard bearing by above-mentioned inspection hole.
In summary, the motor of the bearing cover of the employing embodiment of the present invention is when carrying out bearing maintenance, without the bearing configuration associated components such as bearing cover are all disassembled, only sealing plug 3 need be pulled down and can be detected bearing situation by inspection hole from inspection hole, can carry out the inspections such as bearing outward appearance, the extraction of bearing oil sample.After having checked, refilled sealing plug 3 and can complete bearing maintenance work, operation is simple, reduced the operation easier of bearing maintenance; Simultaneously, because the size of sealing plug 3 is less, extracting tool is fairly simple, be convenient to dismantle in operating space on as limited tower in narrow and small operating space, greatly improve the maintainability of all kinds of large-size machine bearing operations, thereby met the demand of motor being carried out bearing maintenance in narrow and small operating space.
In addition, above-mentioned bearing cover has also been saved manpower and materials, and then has reduced bearing maintenance cost; And above-mentioned inspection hole can also be applied to observe or safeguard the miscellaneous part of motor, applied range; Large and middle size motor particularly, as direct-drive permanent magnet wind power generator etc.
In a kind of preferred embodiment of the present invention, bearing cover also comprises the cover plate 6 that is positioned at sealing plug 3 outsides, can stops sealing plug 3 to skid off from inspection hole, and this cover plate 6 is removably fixed on the outer face of end cap body 1 and is blocking inspection hole.While assembling this bearing cover, first sealing plug 3 is placed in inspection hole, then cover plate 6 is arranged on end cap body 1 and blocks outside inspection hole, thus sealing plug 3 is spacing on end cap body 1.Above-mentioned cover plate 6 can be exerted pressure to sealing plug 3 from end cap body 1 outside, and then avoids that sealing plug 3 is outer to be moved, thereby has avoided sealing plug 3 to skid off the situation of inspection hole, has guaranteed the sealing of normal operation.
The bearing cover of application the present embodiment, when carrying out bearing maintenance, need to be pulled down cover plate 6 and sealing plug 3 successively; The present invention also can not arrange cover plate 6, by sealing plug 3 is had, block at inspection hole and be fixed on the chimb on end cap body 1 or sealing plug 3 and inspection hole are threaded connection, to realize the effect of the bonding strength of same raising sealing plug 3 and end cap body 1, at this, introduce no longer one by one.
Concrete, above-mentioned cover plate 6 is fixed on the outer face of end cap body 1 by hexagon socket cap head screw 5.Because hexagon socket cap head screw 5 is convenient to dismounting, so that the dismounting of cover plate 6, and then be convenient to the maintenance work of bearing.Above-mentioned cover plate 6 can also be threaded or other dismountable connected modes are fixed on end cap body 1 by bolt 2 or double-screw bolt etc.
In a kind of preferred embodiment of the present invention, sealing plug 3 and end cap body 1 are sealed and matched by sealing gasket 4, and sealing gasket 4 is pressed on the junction of end cap body 1 and sealing plug 3 by cover plate 6.The material of sealing pad 4 can be rubber, foam etc.
In the present embodiment, sealing gasket 4 is arranged on the outer face of end cap body 1 and sealing plug 3, covers the place, connection gap of end cap body 1 and sealing plug 3, and the outer ring of sealing gasket 4 is pressed on the outer face of end cap body 1, and inner ring is pressed on the outer face of sealing plug 3.Sealing pad 4 has strengthened the sealing between sealing plug 3 and end cap body 1, can prevent better seepage, has improved the normal reliability of operation of bearing.It will be understood by those skilled in the art that, above-mentioned sealing gasket 4 can also be enclosed within on sealing plug 3 and between the hole wall and sealing plug 3 of inspection hole, also can make between sealing plug 3 and inspection hole as interference is joined, to reach same assurance sealing plug 3 and the effect of the sealing between end cap body 1, at this, introduce no longer one by one.
For the ease of the dismounting of sealing plug 3, in the bearing cover that above-described embodiment provides, on the outer face of sealing plug 3, be also provided with the projection 31 that auxiliary seal plug 3 is extracted from inspection hole, and on cover plate 6, offer the perforation of passing for projection 31.In the present embodiment, by projection 31, just can successfully sealing plug 3 be got in inspection hole, without by instrument, more be convenient to sealing plug 3 is being chosen and installment work in first-class limited operating space as tower.Alternatively, above-mentioned projection 31 can also be for being opened in the auxiliary hole etc. of pulling out of inserting on sealing plug 3 outer faces, for hand.
Further, in technical scheme, the central axis of inspection hole is parallel with the axis of end cap body 1; When the above-mentioned inspection hole of processing, be easy to find accurately machining benchmark, be convenient to the processing of inspection hole.Certainly, the central axis of above-mentioned inspection hole can also become with the axis of end cap body 1 angle of 10 °, 15 ° or other number of degrees, as long as inspection hole can be realized the maintenance to bearing.
In a kind of specific embodiment of invention, inspection hole is preferably the bellmouth to close bearing one end convergent Zi the one end away from bearing, and inspection hole is the bellmouth of ecto-entad convergent, and the inspection hole of this shape is convenient to the mounting or dismounting of sealing plug 3, has improved operating effect.In order to coordinate with above-mentioned inspection hole better, sealing plug 3 is the conical plug matching with bellmouth simultaneously.Now along bellmouth whole, axially sealing plug 3 is face with bellmouth and contacts, sealing plug 3 is filled in to the position that bellmouth is suitable after sealing effectiveness better.Certainly, above-mentioned inspection hole can also be the hole of other shapes such as cylindrical hole, rectangular opening, sealing plug 3 can for as U-shaped, notch cuttype, other shape such as cross, as long as meet sealing plug 3, all can with being sealed and matched of inspection hole.
For the ease of the maintenance to bearing different parts, in the bearing cover that above-described embodiment provides, the number of inspection hole is at least two, and inspection hole being circumferentially uniformly distributed along end cap body 1.In the time need to detecting the bearing of diverse location, only need by this position corresponding or from sealing plug 3 is recently pulled down, by the inspection hole of this position, realize the maintenance to bearing, maintenance span is wider.Above-mentioned inspection hole can also be 1,2 or other numbers, should need to select suitable inspection hole quantity and size according to actual maintenance.
Above-mentioned sealing plug 3 can be metal closures or nonmetal plug, and in an embodiment of the present invention, sealing plug 3 is preferably rubber stopper, and is interference fit between this rubber stopper and inspection hole.Sealing plug 3 is made by rubber, has elasticity, and itself and inspection hole have good sealing effectiveness by interference fit, is convenient to fill in inspection hole simultaneously and extracts in inspection hole, has reduced dismounting difficulty.Sealing plug 3 can also be made for cork or other materials.
The embodiment of the present invention also provides a kind of motor, comprises rotating shaft 7, and bearing pedestal 8 is arranged on the bearing between rotating shaft 7 and bearing pedestal 8 and is arranged on the bearing cover on bearing pedestal 8, and this bearing cover is the bearing cover in above-mentioned any one embodiment.
The bearing cover that above-mentioned motor adopts the present embodiment to provide, reduced the operation easier of bearing maintenance, thereby met the demand of motor being carried out bearing maintenance in narrow and small operating space, its advantage is brought by bearing cover, concrete please refer to part relevant in above-described embodiment, at this, just repeat no more.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a bearing cover, is characterized in that, comprising:
End cap body (1), offers the inspection hole that can be communicated with the bearing installation cavity (C) of motor on described end cap body (1); With
Be removably disposed in the sealing plug (3) in described inspection hole, described sealing plug (3) is sealed and matched with described end cap body (1).
2. bearing cover as claimed in claim 1, it is characterized in that, also comprise the cover plate (6) that is positioned at described sealing plug (3) outside, can stops described sealing plug (3) to skid off from described inspection hole, described cover plate (6) is removably fixed on the outer face of described end cap body (1) and is blocking described inspection hole.
3. bearing cover as claimed in claim 2, is characterized in that, described cover plate (6) is fixed on the outer face of described end cap body (1) by hexagon socket cap head screw (5).
4. bearing cover as claimed in claim 2, it is characterized in that, described sealing plug (3) and described end cap body (1) are sealed and matched by sealing gasket (4), and described sealing gasket (4) is pressed on the junction of described end cap body (1) and described sealing plug (3) by described cover plate (6).
5. bearing cover as claimed in claim 4, it is characterized in that, on the outer face of described sealing plug (3), be also provided with the projection (31) that auxiliary described sealing plug (3) is extracted from described inspection hole, and on described cover plate (6), offer the perforation of passing for described projection (31).
6. bearing cover as claimed in claim 1, is characterized in that, the central axis of described inspection hole is parallel with the axis of described end cap body (1).
7. bearing cover as claimed in claim 6, is characterized in that, described inspection hole is the bellmouth to close bearing one end convergent Zi the one end away from bearing, the conical plug of described sealing plug (3) for matching with described bellmouth.
8. bearing cover as claimed in claim 7, is characterized in that, the number of described inspection hole is at least two, and described inspection hole being circumferentially uniformly distributed along described end cap body (1).
9. bearing cover as claimed in claim 7, is characterized in that, described sealing plug (3) is rubber stopper, and is interference fit between this rubber stopper and described inspection hole.
10. a motor, comprise rotating shaft (7), bearing pedestal (8), be arranged on the bearing between described rotating shaft (7) and described bearing pedestal (8) and be arranged on the bearing cover on described bearing pedestal (8), it is characterized in that, described bearing cover is the bearing cover as described in claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310533376.4A CN103532289B (en) | 2013-11-01 | 2013-11-01 | A kind of bearing cover and a kind of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310533376.4A CN103532289B (en) | 2013-11-01 | 2013-11-01 | A kind of bearing cover and a kind of motor |
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| Publication Number | Publication Date |
|---|---|
| CN103532289A true CN103532289A (en) | 2014-01-22 |
| CN103532289B CN103532289B (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310533376.4A Active CN103532289B (en) | 2013-11-01 | 2013-11-01 | A kind of bearing cover and a kind of motor |
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| CN (1) | CN103532289B (en) |
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| CN107524805A (en) * | 2017-09-29 | 2017-12-29 | 贵州云上刺梨花科技有限公司 | A kind of seal for fruit press apparatus |
| CN108022815A (en) * | 2018-01-24 | 2018-05-11 | 安徽锐能科技有限公司 | A kind of fuse holder with water-proof function |
| CN109650254A (en) * | 2018-12-27 | 2019-04-19 | 江苏核电有限公司 | A kind of nuclear power station ring hangs horizontal wheels used |
| CN115395708A (en) * | 2021-05-25 | 2022-11-25 | 北京金风科创风电设备有限公司 | Power generation device, maintenance method thereof and wind generating set |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107524805A (en) * | 2017-09-29 | 2017-12-29 | 贵州云上刺梨花科技有限公司 | A kind of seal for fruit press apparatus |
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| CN115395708B (en) * | 2021-05-25 | 2023-12-08 | 北京金风科创风电设备有限公司 | Power generation device, maintenance method thereof and wind generating set |
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| CN103532289B (en) | 2016-09-14 |
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