CN105429342A - Lubricating oil discharge mechanism - Google Patents
Lubricating oil discharge mechanism Download PDFInfo
- Publication number
- CN105429342A CN105429342A CN201510578296.XA CN201510578296A CN105429342A CN 105429342 A CN105429342 A CN 105429342A CN 201510578296 A CN201510578296 A CN 201510578296A CN 105429342 A CN105429342 A CN 105429342A
- Authority
- CN
- China
- Prior art keywords
- bearing
- lubricating oil
- hole
- delivery line
- outside
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
Landscapes
- Motor Or Generator Frames (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The present invention provides a lubricating oil discharge mechanism capable of preventing, in an electric rotating machinery, lubricating oil leaked from a bearing part via a communicating line from polluting the around environment. The lubricating oil discharge mechanism (50) comprises: a communicating pipe (31) which is connected with a through hole (27) and enables an internal part of a bearing to be communicated with external gas, wherein the through hole (27) achieves run-through along a main shaft direction at the bearing lower side of a bearing support (20) which supports the bearing and separates an axial inner side from an axial outer side; a delivery pipe (51), wherein the delivery pipe (51) is arranged at the outer side of the bearing support (20), one end of the delivery pipe (51) is connected to the through hole (27) of the bearing support (20) from the outer side, and the other end of the delivery pipe (51) extends along the horizontal direction and provided with a dam (52); a discharge pipe (53), wherein the discharge pipe (53) is connected with the lower part of the delivery pipe (51), and extends downwards and has an open lower end; and a valve (54) provided on the discharge pipe (53).
Description
Technical field
The present invention relates to the lubricating oil output mechanism of the bearing portion of electric rotating machine.
Background technology
Electric rotating machine possesses rotor and stator.Rotor has the rotor core of the armature spindle pivoted and the radial outside being arranged on this armature spindle usually.In addition, the stator stator core with drum and the stator coil that is wound in teeth portion that this stator core formed.
In the electric rotating machine of lateral type, armature spindle extends in the horizontal direction.Armature spindle is arranged on the rotatable ground axle suspension of bearing of the axial both sides of rotor core.
Bearing (especially sliding bearing) provides the lubricating oil for bearing lubrication.Be provided to bearing to carry out the lubricating oil of bearing lubrication by after bearing, fall and be stored in the food tray be arranged at below bearing.
In order to prevent lubricating oil from spilling to axial further from food tray, existing and the lubricating oil that the adjacent space from food tray leaks is directed to outside example (patent documentation 1).
Prior art document
Patent documentation
Patent documentation 1: Japan Patent Beneficial 4-121370 publication
Summary of the invention
Invent technical problem to be solved
Fig. 4 is the three-dimensional cutaway view of bearing 15 surrounding of conventional example.On the support of bearing 20 that bearing 15 is supported, in order to prevent the oil around bearing 15 from leaking into inner side or outside because of the pressure differential with ambient atmos, being provided with communicating pipe 31 sometimes, all pressing inside and outside making.This communicating pipe 31 extends from the inboard portion of the support of bearing 20 and is connected with the through hole 27 of the support of bearing 20, opens into air by through hole 27.
Due to the rotation etc. of the armature spindle 11 that the operation of electric rotating machine causes, lubricating oil may be leaked by communication line from this communicating pipe 31 to through hole 27, then drip to the part of atmosphere opening thus to around pollute.
For this reason, the object of the invention is to prevent in electric rotating machine around the lubricant pollution that spills from bearing portion via communication line.
For the technological means of technical solution problem
To achieve these goals, lubricating oil output mechanism of the present invention discharges the lubricating oil from the bearing leakage of electric rotating machine, the mode that the bearing of this electric rotating machine can carry out rotating around the main shaft extended in the horizontal direction with armature spindle carries out axle supporting to armature spindle, it is characterized in that, comprise: communicating pipe, be connected with through hole this communicating pipe and the inboard portion of described bearing is communicated with ambient atmos, this through hole is supporting described bearing and the below of the described bearing of the support of bearing separated in axial inner side and axial outside is run through along the direction of described main shaft; Delivery line, this delivery line is arranged on the outside of the described support of bearing, and one end thereof is connected to the through hole of the described support of bearing from outside, extends in the horizontal direction and have dam in end near another end; Discharge pipe, this discharge pipe is connected with the bottom of described delivery line, extends downwards, and lower end is open; And valve, this valve is arranged on described discharge pipe.
Invention effect
According to the present invention, can prevent in electric rotating machine, around the lubricant pollution spilt from bearing portion via communication line.
Accompanying drawing explanation
Fig. 1 is the three-dimensional cutaway view around the bearing of the lubricating oil output mechanism comprised involved by execution mode.
Fig. 2 is the three-dimensional cutaway view of the lubricating oil output mechanism involved by execution mode.
Fig. 3 is the front view of the lubricating oil output mechanism involved by execution mode.
Fig. 4 is the three-dimensional cutaway view of the bearing surrounding of conventional example.
Embodiment
Below, with reference to accompanying drawing, the lubricating oil output mechanism involved by embodiments of the present invention is described.
Fig. 1 is the three-dimensional cutaway view around the bearing of the lubricating oil output mechanism comprised involved by execution mode.At the position that armature spindle 11 is supported by axle in the mode can carrying out rotating around main shaft, the diameter of armature spindle 11 is formed slightly thin than axial central area.Bearing 15 is provided with at the radial outside of this part of armature spindle 11.Bearing 15 is such as sliding bearing, has two parts that are divided into two, and these two parts combine thus the bearing being formed with through hole as central authorities supports armature spindle 11.The inner surface being formed in the through hole on bearing 15 is relative with the outer surface of armature spindle 11 by small gap.There is provided lubricating oil from oil-in 21 to bearing, under the rotation status of armature spindle 11, in the gap of this bearing surface, be formed with the overlay film of lubricating oil.
Bearing 15 support by the bearing support 26 of the support of bearing 20.The outer surface of bearing 15 is the shapes by the cross section of main shaft with circular arc.The outer surface of bearing 15 connects with the rotary body surface of bearing support 26 in this arc-shaped, thus not only restrict rotor axle 11 diametrically, also on major axes orientation, limit armature spindle 11.
On the support of bearing 20 in the outside of major axes orientation, namely contrary with not shown rotor core side is formed with outside air room 22, outside food tray 23, inner side food tray and inner side air chamber 25 successively.Outside food tray 23 and inner side food tray 24 adjoin with bearing support 26 respectively, clip bearing support 26 and are configured in opposition side each other.The face relative with armature spindle 11 of the dividing plate between outside food tray 23 with outside air room 22 is formed with the labyrinth portion being provided with labyrinth packing.In addition, the face relative with armature spindle 11 of the dividing plate between inner side food tray 24 with inner side air chamber 25 is formed with the labyrinth portion being provided with labyrinth packing too.
The support of bearing 20 is formed with through hole 27.Be provided with communicating pipe 31, thus inner side air chamber 25 is connected with through hole 27.Communicating pipe 31 and the connection of the through hole 27 of the support of bearing 20 can be by utilizing the combination of screw or welding.The outside of through hole 27 is provided with delivery line 51.Delivery line 51 and the connection of the through hole 27 of the support of bearing 20 can be by utilizing the combination of screw or welding.Or, also can by will the sleeve (not shown) of sealing between the support of bearing 20 in outside in through hole 27, and make that sleeve engaged with communicating pipe 31, sleeve and delivery line 51 engage.
Or, also internal thread can be formed at the inner surface of through hole 27, form external screw thread in the outside of delivery line 51, to adopt the Outboard Sections except communicating pipe 31 except of lubricating oil output mechanism 50 described later as integrally, delivery line 51 is screwed into the mode of through hole 27.
Fig. 2 is the three-dimensional cutaway view of the lubricating oil output mechanism 50 involved by execution mode.In addition, Fig. 3 is front view.The valve 54 that lubricating oil output mechanism 50 has communicating pipe 31, delivery line 51, discharge pipe 53 and is arranged in discharge pipe 53.
The first end of delivery line 51 is combined with the through hole 27 of the support of bearing 20, thus extends to the outside of the support of bearing 20.Delivery line 51 is drawn along horizontal direction.Here, level comprises the so-called discharge gradient, namely for determining the situation of the minimum inclination of liquid flow direction.The other end beyond the second end of delivery line 51, the first end that is namely combined with the through hole 27 of the support of bearing 20 is provided with dam 52.That is, end plate 52a is provided with in the latter half of the opening portion of the second end.Its result, defines dam opening 52b in the first half.
To diverge out discharge pipe 53 from the lower surface of delivery line 51 of delivery line 51 midway, this discharge pipe 53 extends to vertical lower.Be communicated with in discharge pipe 53 with in delivery line 51.The lower end of discharge pipe 53 is open.The midway of discharge pipe 53 is provided with valve 54.Valve 54 is provided with handle 54a, and handle 54a can be utilized to open or close valve 54.
In the present embodiment formed as described above, the rotation etc. of armature spindle 11 is caused in the operation because of electric rotating machine, thus when causing lubricating oil by leaking out from communicating pipe 31 to the communication line of through hole 27, the lubricating oil of this leakage can be directed to delivery line 51 further.
The lubricating oil being directed to delivery line 51 is stored in dam 52.The situation that lubricating oil is stored in dam 52 easily confirms by observing in delivery line 51 from dam opening 52b.
The lubricating oil leaked due to the labyrinth portion of the dividing plate from inner side food tray 24 and inner side air chamber 25 is few, is therefore stored in gathering way of the lubricating oil in dam 52 less.Therefore, lubricating oil can not overflow from dam 52 in the interval of regular walkaround inspection.In addition, when gathering way larger, by increase delivery line 51 bore increase length or improve dam 52 end plate 52a height or increase the bore of discharge pipe 53 and increase the capacity storing lubricating oil.
But when discharge pipe 53 only has storage volume, after discharge pipe 53 is filled with, the horizontal line of stored lubricating oil can exceed the height of the end plate 52a on dam 52, cause the time to lubricating oil overflows to shorten, therefore should be noted that.
The discharge of stored lubricating oil is easily carried out by carrying out operation to the handle 54a of valve 54.
As mentioned above, according to the present invention, can prevent around the lubricant pollution that spills via communication line.
As mentioned above embodiments of the present invention are illustrated, but this execution mode only exemplarily presents, and do not really want to limit scope of invention.These execution modes can be implemented by other various modes, in the scope not departing from invention main points, can carry out various omission, displacement, change.In the scope of the invention that these execution modes and distortion thereof are included in described in claims in the same manner as being included in scope of invention and main points and equalization thereof.
Label declaration
11 armature spindles
15 bearings
20 supports of bearing
21 oil-ins
22 outside air rooms
Food tray outside 23
Food tray inside 24
Air chamber inside 25
26 bearing supports
27 through holes
31 communicating pipes
50 lubricating oil output mechanisms
51 delivery lines
52 dams
52a end plate
52b dam opening
53 discharge pipes
54 valves
54a handle
Claims (4)
1. a lubricating oil output mechanism, this lubricating oil output mechanism discharges the lubricating oil from the bearing leakage of electric rotating machine, the mode that the bearing of this electric rotating machine can carry out rotating around the main shaft extended in the horizontal direction with armature spindle carries out axle supporting to armature spindle, it is characterized in that, comprising:
Communicating pipe, be connected with through hole this communicating pipe and the inboard portion of described bearing is communicated with ambient atmos, this through hole is supporting described bearing and the below of the described bearing of the support of bearing separated in axial inner side and axial outside is run through along the direction of described main shaft;
Delivery line, this delivery line is arranged on the outside of the described support of bearing, and its first end is connected to the through hole of the described support of bearing from outside, extends in the horizontal direction and have dam at described the second end near the second end of the opposition side of described first end;
Discharge pipe, this discharge pipe is connected with the bottom of described delivery line, extends downwards, and lower end is open; And
Valve, this valve is arranged on described discharge pipe.
2. lubricating oil output mechanism as claimed in claim 1, is characterized in that, by the pasta of the lubricating oil inside the described dam of the described the second end confirming described delivery line that detects by an unaided eye from outside.
3. lubricating oil output mechanism as claimed in claim 1 or 2, it is characterized in that, the inner surface of the described through hole of the described support of bearing is formed with internal thread, and the end of described delivery line is formed with external screw thread, and described delivery line can screw togather with the described support of bearing.
4. the lubricating oil output mechanism as described in any one of claims 1 to 3, it is characterized in that, described bearing is sliding bearing, has the inner side air chamber of the axially inner side receiving described lubricating oil and outside food tray adjacent in the axial direction each other and inner side food tray and be arranged on described inner side food tray
Described inboard portion is described inner side air chamber.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-186660 | 2014-09-12 | ||
| JP2014186660A JP6210957B2 (en) | 2014-09-12 | 2014-09-12 | Lubricating oil discharge mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105429342A true CN105429342A (en) | 2016-03-23 |
| CN105429342B CN105429342B (en) | 2018-10-16 |
Family
ID=55507346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510578296.XA Active CN105429342B (en) | 2014-09-12 | 2015-09-11 | Lubricating oil output mechanism |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6210957B2 (en) |
| CN (1) | CN105429342B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599441A (en) * | 2018-07-06 | 2018-09-28 | 华北理工大学 | A kind of motor rotor structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50148507U (en) * | 1974-05-28 | 1975-12-10 | ||
| JPS58121164U (en) * | 1982-02-12 | 1983-08-18 | 株式会社東芝 | Sealing oil supply device |
| JPS6028734A (en) * | 1983-07-27 | 1985-02-13 | Mitsubishi Electric Corp | Liquid-sealed motor |
| JPS6211800U (en) * | 1985-07-05 | 1987-01-24 | ||
| JPH04121371U (en) * | 1991-04-18 | 1992-10-29 | 東洋電機製造株式会社 | Electric motor bearing structure |
| CN1712725A (en) * | 2004-06-21 | 2005-12-28 | 乐金电子(天津)电器有限公司 | Lubricant oil overflow reducer of horizontal rotary compressor |
| JP2011012570A (en) * | 2009-06-30 | 2011-01-20 | Ihi Corp | Thrust bearing structure and turbocharger |
| JP2013087691A (en) * | 2011-10-18 | 2013-05-13 | Hitachi-Ge Nuclear Energy Ltd | Fluid confirmation device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0713415Y2 (en) * | 1988-10-17 | 1995-03-29 | 株式会社東芝 | Totally closed fan-shaped rotating electric machine |
| JP2010063280A (en) * | 2008-09-04 | 2010-03-18 | Toshiba Mitsubishi-Electric Industrial System Corp | Internal pressure explosion-proof rotating electric machine |
-
2014
- 2014-09-12 JP JP2014186660A patent/JP6210957B2/en active Active
-
2015
- 2015-09-11 CN CN201510578296.XA patent/CN105429342B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50148507U (en) * | 1974-05-28 | 1975-12-10 | ||
| JPS58121164U (en) * | 1982-02-12 | 1983-08-18 | 株式会社東芝 | Sealing oil supply device |
| JPS6028734A (en) * | 1983-07-27 | 1985-02-13 | Mitsubishi Electric Corp | Liquid-sealed motor |
| JPS6211800U (en) * | 1985-07-05 | 1987-01-24 | ||
| JPH04121371U (en) * | 1991-04-18 | 1992-10-29 | 東洋電機製造株式会社 | Electric motor bearing structure |
| CN1712725A (en) * | 2004-06-21 | 2005-12-28 | 乐金电子(天津)电器有限公司 | Lubricant oil overflow reducer of horizontal rotary compressor |
| JP2011012570A (en) * | 2009-06-30 | 2011-01-20 | Ihi Corp | Thrust bearing structure and turbocharger |
| JP2013087691A (en) * | 2011-10-18 | 2013-05-13 | Hitachi-Ge Nuclear Energy Ltd | Fluid confirmation device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599441A (en) * | 2018-07-06 | 2018-09-28 | 华北理工大学 | A kind of motor rotor structure |
| CN108599441B (en) * | 2018-07-06 | 2023-06-30 | 华北理工大学 | Motor rotor structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105429342B (en) | 2018-10-16 |
| JP6210957B2 (en) | 2017-10-11 |
| JP2016063547A (en) | 2016-04-25 |
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