CN103618402A - Automatic grease discharging structure of motor rolling bearing - Google Patents
Automatic grease discharging structure of motor rolling bearing Download PDFInfo
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- CN103618402A CN103618402A CN201310622388.4A CN201310622388A CN103618402A CN 103618402 A CN103618402 A CN 103618402A CN 201310622388 A CN201310622388 A CN 201310622388A CN 103618402 A CN103618402 A CN 103618402A
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- fat
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- row
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- weir plate
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Abstract
The invention discloses an automatic grease discharging structure of a motor rolling bearing. The automatic grease discharging structure comprises a rotating shaft. A bearing front cover, the bearing and a bearing rear cover are sequentially arranged on the rotating shaft. The bearing is arranged inside a bearing pedestal. The portion, inside the bearing front cover, of the rotating shaft is sleeved with a centrifugal grease throwing ring which can rotate along with the rotating shaft. The two end faces of the centrifugal grease throwing ring are respectively provided with a rear centrifugal blade which faces towards the bearing. An annular grease blocking weir plate is arranged inside the bearing front cover. The grease blocking weir plate and the bearing are arranged in a spaced mode. Each rear centrifugal blade backward extends from the front side of the grease blocking weir plate into an annular hole of the grease blocking weir plate. Grease discharging holes are formed in the portion, on the radial side of the centrifugal blades, of the bearing front cover, and the grease discharging holes are located in the front side of the grease blocking weir plate. An automatic grease discharging valve with a compression spring is arranged below the grease discharging holes. The automatic grease discharging structure overcomes the defects of an existing grease throwing plate grease discharging structure and an existing non-grease-discharging structure of a rolling bearing, and is simple in structure, good in heat dissipation performance, good in sealing performance and high in use and maintenance automation degree.
Description
Technical field
The invention belongs to the improvement technology of motor bearings, be specifically related to a kind of automatic row's fat structure of motor rolling bearing.
Background technology
Rolling bearing is that the sliding friction between the axle of running and axle bed is become to rolling friction, thereby reduces the mechanical organ of a kind of precision of friction loss, and the lubricating reliability of bearing and operation working temperature are very large on the service behaviour impact of bearing.At present rolling bearing conventionally adopts and gets rid of fat dish row's fat structure and without row's fat structure.Get rid of fat dish row fat structure and exist and get rid of fat dish and lubricating grease frictional heat is too large, and then cause bearing working temperature too high.Without row's fat structure, because of lubricating grease, cannot arrange under external force from bearing, cause the interior lubricating grease of bearing chamber cavity too much, have a thick layer of lubricating grease between bearing outer face and bearing end cover, cause bearing to dispel the heat, bearing working temperature is too high.These two kinds of structures all can cause bearing working temperature high, the operational reliability variation of bearing; Bearing produces extra frictional dissipation, reduced the efficiency of motor, expended a large amount of electric energy, and lubricating grease all needs artificial discharge, as be late for manually arranging fat, to cause the interior lubricating grease of bearing chamber cavity too much, bearing friction further increases, and bearing temperature further rises, and manually arranges fat complicated operation, field device maintenance personnel labor intensity is large, is difficult for improving the automaticity of motor.
Summary of the invention
The object of the invention is to solve that existing rolling bearing gets rid of fat dish row's fat structure and without the weak point of row's fat structure, thereby provide a kind of simple in structure, perfect heat-dissipating, good airproof performance, the rolling bearing that working service automaticity is high is arranged fat structure automatically.
For achieving the above object, the present invention adopts following technical scheme: automatic row's fat structure of motor rolling bearing, comprise rotating shaft, in rotating shaft, be provided with successively bearing protecgulum, bearing and bearing bonnet, described bearing is located in bearing pedestal, in rotating shaft in bearing protecgulum, be arranged with the centrifugal drying alicyclic ring that can rotate with rotating shaft, on centrifugal drying alicyclic ring, both ends of the surface are provided with the rear centrifuge blade towards bearing, in bearing protecgulum, be provided with annular gear fat weir plate, gear fat weir plate and bearing interval arrange, and described rear centrifuge blade extands rearward in the annular distance of gear fat weir plate from the front side of gear fat weir plate; Centrifuge blade radially on the bearing protecgulum of a side ，Pai Zhi hole, the row's of being provided with fat hole be positioned at gear fat weir plate front side.
In bearing protecgulum, between row fat hole and centrifugal drying alicyclic ring, be provided with the row's fat chamber that is positioned at gear fat weir plate front side, place, row fat hole is provided with automatic row's fat assembly, described automatic row's fat assembly comprises row's fat cover plate, and described row's fat cover plate is covered in outside, row fat hole and can seals or the row's of opening fat hole.
Before described bearing, be covered with the mounting panel of installing hole and covering installing hole, mounting panel is that screw is connected with bearing protecgulum, described row's fat hole is located on mounting panel, described automatic row's fat assembly also comprises guide rod and spring radially, mounting panel is provided with guide rod jack, guide rod inserts in bearing protecgulum from guide rod jack, row's fat cover plate is covered in the outside of mounting panel, guide rod outer end connects described row's fat cover plate, the inner that guide rod inserts in bearing protecgulum is provided with Spring Card, and described spring housing is located at the guide rod outer ring between Spring Card and mounting panel.
Described row's fat orifice ring arranges several around the uniform interval of guide rod.
Described rear centrifuge blade is fan annular, rear centrifuge blade twisted rotary shaft circumferential interval is uniform arrange several.
In rotating shaft, be installed with circlip, centrifugal drying alicyclic ring is fastened between circlip and bearing, and centrifugal drying alicyclic ring comprises the torus of hot jacket in rotating shaft, the annular protrusion arranging around torus outer ring and is located at the described rear centrifuge blade on annular protrusion rear end face.
The front end face of described annular protrusion is provided with front centrifuge blade.
The annulus bore dia of gear fat weir plate is consistent with the pitch diameter at rolling element center in bearing.
Described rear centrifuge blade extands rearward to the medium position in the annular distance that keeps off fat weir plate from the front side of gear fat weir plate.
Automatic row's fat structure of motor rolling bearing of the present invention, has following beneficial effect:
1, at bearing protecgulum, near the position of bearing, a gear fat weir plate is set, the inner ring diameter of gear fat weir plate is consistent with the pitch diameter at rolling bearing rolling element center.Gear fat weir plate can make bearing front end face place store the lubricating grease of fair amount, in the lubrication interval again of rolling bearing, lubricating grease can analyze enough oil lubrication bearings, improved bearing lubrication reliability, unnecessary lubricating grease can throw away bearing protecgulum from row fat hole by gear fat weir plate and centrifugal drying alicyclic ring, avoid too much lubricating grease and retainer friction, the frictional heat of less lubricating grease, reduces bearing operating temperature.
2. in the rotating shaft in gear fat weir plate outside, install one with the centrifugal drying alicyclic ring of rotating shaft rotation and adopt circlip to be fixed in rotating shaft, on centrifugal drying alicyclic ring, be cast with a plurality of circumference uniform distributions before, rear centrifuge blade, rear centrifuge blade axially overlaps sub-fraction in the annular distance of gear fat weir plate, form centrifugal row's fat pump, when the unnecessary lubricating grease of bearing chamber arrives rear centrifuge blade place by gear fat weir plate, centrifugal action because of blade, lubricating grease is thrown in row fat chamber, and the lubricating grease in row fat chamber is produced to certain pressure, the row's fat cover plate that makes lubricating grease push automatic row's fat assembly open is discharged to bearing protecgulum outside.
3. centrifugal drying alicyclic ring is equivalent to a centrifugal fan simultaneously, because it has certain pectinid ability, has strengthened the air-flow whirling motion at place, bearing outer face, strengthens the heat loss through convection ability of bearing, can effectively reduce the operating temperature of bearing, improves the operational reliability of bearing; And its centrifugal fan wind energy power can avoid the dust, the moisture that by bearing protecgulum axle, run through hermetically-sealed construction to enter bearing, has improved the sealability of bearing, can ensure the safe and reliable operation of bearing.
4. row's fat cover plate of automatically arranging on fat assembly closely cooperates with mounting panel in normal operation, and the sealing function of mating surface toughness lubricating grease, and this locates good seal, has strengthened the sealing reliability of whole bearing arrangement.When the lubricating grease of row in fat chamber is abundant, lubricating grease is pushed cover plate open and is discharged to bearing protecgulum outside under the effect of centrifugal drying alicyclic ring, and under the effect of the spring of compression, cover plate is got back to normal operating conditions automatically subsequently.In whole row's fat process, do not need manually to carry out any operation, can realize automatic row's fat, improved the automaticity of motor, facilitate field device maintenance personnel's maintenance, reduced labour intensity.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of centrifugal drying alicyclic ring;
Fig. 3 is the right view of Fig. 2;
Fig. 4 is the A place enlarged drawing in Fig. 1;
Fig. 5 is the B-B view of Fig. 4.
Embodiment
Automatic row's fat structure by the motor rolling bearing shown in Fig. 1-Fig. 5, comprise rotating shaft 11, in rotating shaft 11, be provided with successively from front to back bearing protecgulum 1, bearing 13 and bearing bonnet 12, described bearing 13 is located in bearing pedestal 14, bearing pedestal 14 is between bearing protecgulum 1 and bearing bonnet 12, bearing protecgulum 1 comprises cover plate 10 radially and the side plate arranging around cover plate 10 outer rear sides, rotating shaft 11 and bearing protecgulum 1, rotating shaft 11 is grafting with bearing bonnet 12, between bearing protecgulum 1 and rotating shaft 11, be provided with axle and run through hermetically-sealed construction, bearing protecgulum 1, bearing pedestal 14 and bearing bonnet 12 threes are bolted to connection, bearing protecgulum 1, bearing pedestal 14 and bearing bonnet 12 threes' syndeton and axle run through hermetically-sealed construction 7 and are prior art, Gu do not describe in detail.
In rotating shaft 11 in bearing protecgulum 1, be arranged with the centrifugal drying alicyclic ring that can rotate with rotating shaft 11, centrifugal drying alicyclic ring is positioned at the lid chamber of bearing protecgulum 1, centrifugal drying alicyclic ring comprises the torus 8 of hot jacket in rotating shaft 11, the annular projection 4 setting firmly around torus 8 outer rings and be located at the rear centrifuge blade 3 on annular protrusion 4 rear end faces, the front end face of annular protrusion 4 is provided with front centrifuge blade 5, torus 8, annular projection 4, front centrifuge blade 5 and rear centrifuge blade 3 are casting integrated formula structure, in rotating shaft 11, be installed with circlip 6, rotating shaft 11 borders are provided with annular slot, circlip 6 is embedded in annular slot, centrifugal drying alicyclic ring is fastened between circlip 6 and bearing, torus 8 front ends and the circlip 6 of centrifugal drying alicyclic ring offset, rear end and bearing 13 inner ring end faces offset, front centrifuge blade 5 on centrifugal drying alicyclic ring is towards the cover plate radially 10 of bearing protecgulum 1, rear centrifuge blade 3 on centrifugal drying alicyclic ring is towards bearing 13, front centrifuge blade 5 twisted rotary shaft 11 circumferential intervals are uniform arrange several, rear centrifuge blade 3 also twisted rotary shaft 11 circumferential intervals uniform arrange several, front centrifuge blade 5 and rear centrifuge blade 3 are fan annular.
In bearing protecgulum 1, be provided with the gear fat weir plate 2 of annular radially, rotating shaft 11 is passed from the annulus hole of gear fat weir plate 2, gear fat weir plate 2 is that interval arranges with bearing, gear fat weir plate 2 is positioned at the rear side of annular projection 4, the front side of bearing, and the annulus bore dia d of gear fat weir plate 2 is consistent with the pitch diameter D at rolling element center in bearing.Described rear centrifuge blade 3 extends axially to the annular distance of gear fat weir plate 2 backward from the front side of gear fat weir plate 2, and rear centrifuge blade 3 extands rearward to axial medium position in the annular distance that keeps off fat weir plate 2 from the front side of gear fat weir plate 2, between rear centrifuge blade 3 and gear fat weir plate 2, be provided with gap.
Bearing protecgulum 1 is provided with and is positioned at radially row's fat hole 19 of a side of centrifugal drying alicyclic ring, bearing protecgulum 1 is also provided with installing hole 21 and covers the mounting panel 22 of installing hole 21, mounting panel 22 covers the outside of installing hole 21, mounting panel 22 and bearing protecgulum 1 are connected for screw, described row's fat hole 19 is located on mounting panel 22, row's fat hole 19, installing hole 21 and mounting panel 22 are all positioned at centrifugal drying alicyclic ring radially on the side plate of the bearing front side of a side, and row fat hole 19, installing hole 21 and mounting panel 22 are all positioned at the front side of gear fat weir plate 2.Between the interior row's fat of bearing protecgulum 1 hole 19 and centrifugal drying alicyclic ring, be provided with the row's fat chamber 9 that is positioned at gear fat weir plate 2 front sides, row 19 places, fat hole are provided with automatic row's fat assembly, described automatic row's fat assembly comprises row's fat cover plate 20, guide rod 17 radially and spring 15, mounting panel 22 is provided with guide rod 17 jacks, guide rod 17 inserts in bearing protecgulum 1 from guide rod 17 jacks, row's fat cover plate 20 is covered in the outside of mounting panel 22, and row's fat cover plate 20 also 19 outsides, the row's of being covered in fat hole also can seal or the row's of opening fat hole 19, described row's fat hole 19 arranges several around the uniform interval of guide rod 17, guide rod 17 outer ends connect described row's fat cover plate 20, the inner that guide rod 17 inserts in bearing protecgulum 1 is provided with Spring Card, described spring 15 is set in guide rod 17 outer rings between Spring Card and mounting panel 22, spring 15 is positioned at row fat chamber 9, Spring Card is the inner nut 16 being arranged on guide rod 17, the outer end of guide rod 17 arranges outer nut 18, cover plate 10 is provided with socket, guide rod 17 interts on cover plate 10 from socket, cover plate 10 is folded between outer nut 18 and mounting panel 22.
Automatic row's fat structure of motor rolling bearing of the present invention, is provided with gear fat weir plate 2 in the bearing protecgulum 1 of motor, and the row of formation fat chamber 9.On centrifugal drying alicyclic ring, with forward and backward centrifuge blade 5,3, forward and backward centrifuge blade 5,3 is except playing cooling effect as centrifugal fan, and forward and backward centrifuge blade 5,3 is also equivalent to centrifugal drying fat blade, and coordinates and form centrifugal row's fat pump with gear fat weir plate 2.An automatic row's fat assembly with Compress Spring 15 is installed in 9 belows, row's fat chamber of bearing protecgulum 1, automatically row's fat assembly is equivalent to row's fat valve, during normal operation, row's fat cover plate 20 of row's fat valve below closely cooperates under the effect of compression spring 15 with mounting panel 22 automatically, when motor bearings internal lubrication fat is more, lubricating grease is the row's of being thrown to fat chamber 9 under the effect of centrifugal row's fat pump, lubricating grease is pushed row's fat cover plate 20 open, the row's of making fat cover plate 20 is opened from row fat hole 19, from row fat hole 19, discharge again, now arranging fat valve opens automatically, unnecessary lubricating grease is discharged, then arrange fat cover plate 20 under the effect of spring 15, row's fat cover plate 20 covers and the row's of sealing fat hole 19 again, row's fat valve cuts out automatically.This automatic row's fat structure has reasonable in design, and bearing lubrication performance is good, good seal performance, and bearing heat-sinking capability is strong, working service automaticity advantages of higher.
Claims (9)
1. automatic row's fat structure of motor rolling bearing, comprise rotating shaft, in rotating shaft, be provided with successively bearing protecgulum, bearing and bearing bonnet, described bearing is located in bearing pedestal, it is characterized in that: in the rotating shaft in bearing protecgulum, be arranged with the centrifugal drying alicyclic ring that can rotate with rotating shaft, on centrifugal drying alicyclic ring, both ends of the surface are provided with the rear centrifuge blade towards bearing, in bearing protecgulum, be provided with annular gear fat weir plate, gear fat weir plate and bearing interval arrange, and described rear centrifuge blade extands rearward in the annular distance of gear fat weir plate from the front side of gear fat weir plate; Centrifuge blade radially on the bearing protecgulum of a side ，Pai Zhi hole, the row's of being provided with fat hole be positioned at gear fat weir plate front side.
2. automatic row's fat structure of motor rolling bearing as claimed in claim 1, it is characterized in that: in bearing protecgulum, between row fat hole and centrifugal drying alicyclic ring, be provided with the row's fat chamber that is positioned at gear fat weir plate front side, place, row fat hole is provided with automatic row's fat assembly, described automatic row's fat assembly comprises row's fat cover plate, and described row's fat cover plate is covered in outside, row fat hole and can seals or the row's of opening fat hole.
3. automatic row's fat structure of motor rolling bearing as claimed in claim 2, it is characterized in that: the mounting panel that is covered with installing hole and covering installing hole before described bearing, mounting panel is that screw is connected with bearing protecgulum, described row's fat hole is located on mounting panel, described automatic row's fat assembly also comprises guide rod and spring radially, mounting panel is provided with guide rod jack, guide rod inserts in bearing protecgulum from guide rod jack, row's fat cover plate is covered in the outside of mounting panel, guide rod outer end connects described row's fat cover plate, the inner that guide rod inserts in bearing protecgulum is provided with Spring Card, described spring housing is located at the guide rod outer ring between Spring Card and mounting panel.
4. automatic row's fat structure of motor rolling bearing as claimed in claim 2 or claim 3, is characterized in that: described row's fat orifice ring arranges several around the uniform interval of guide rod.
5. automatic row's fat structure of motor rolling bearing as claimed in claim 1, is characterized in that: described rear centrifuge blade is fan annular, rear centrifuge blade twisted rotary shaft circumferential interval is uniform arrange several.
6. automatic row's fat structure of motor rolling bearing as claimed in claim 4, it is characterized in that: in rotating shaft, be installed with circlip, centrifugal drying alicyclic ring is fastened between circlip and bearing, and centrifugal drying alicyclic ring comprises the torus of hot jacket in rotating shaft, the annular protrusion arranging around torus outer ring and is located at the described rear centrifuge blade on annular protrusion rear end face.
7. automatic row's fat structure of motor rolling bearing as claimed in claim 5, is characterized in that: the front end face of described annular protrusion is provided with front centrifuge blade.
8. automatic row's fat structure of motor rolling bearing as claimed in claim 1, is characterized in that: the annulus bore dia of gear fat weir plate is consistent with the pitch diameter at rolling element center in bearing.
9. automatic row's fat structure of motor rolling bearing as claimed in claim 1, is characterized in that: described rear centrifuge blade extands rearward to the medium position in the annular distance that keeps off fat weir plate from the front side of gear fat weir plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310622388.4A CN103618402B (en) | 2013-11-30 | 2013-11-30 | Automatically row's fat structure of motor rolling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310622388.4A CN103618402B (en) | 2013-11-30 | 2013-11-30 | Automatically row's fat structure of motor rolling bearing |
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| Publication Number | Publication Date |
|---|---|
| CN103618402A true CN103618402A (en) | 2014-03-05 |
| CN103618402B CN103618402B (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310622388.4A Active CN103618402B (en) | 2013-11-30 | 2013-11-30 | Automatically row's fat structure of motor rolling bearing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734407A (en) * | 2014-12-26 | 2015-06-24 | 山西汾西重工有限责任公司 | Vertical motor bearing oil discharge structure |
| CN106533031A (en) * | 2016-10-30 | 2017-03-22 | 国电联合动力技术(宜兴)有限公司 | Novel bearing grease discharge structure |
| CN112653282A (en) * | 2021-01-05 | 2021-04-13 | 惠州好盈电机有限公司 | Brushless motor with shaft seal effect |
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| CN201666229U (en) * | 2010-04-15 | 2010-12-08 | 湘电风能有限公司 | Automatic grease discharging device of bearing cavity |
| CN202176702U (en) * | 2011-07-13 | 2012-03-28 | 宝山钢铁股份有限公司 | Lubricating grease discharge device in mechanical closed space |
| CN102510160A (en) * | 2011-10-31 | 2012-06-20 | 永济新时速电机电器有限责任公司 | Motor bearing lubrication system |
| CN202940672U (en) * | 2012-12-05 | 2013-05-15 | 南阳防爆集团股份有限公司 | Bearing device of high-voltage dust explosion-proof three-phase asynchronous motor |
| CN203632433U (en) * | 2013-11-30 | 2014-06-04 | 南阳防爆集团股份有限公司 | Automatic grease-discharging structure of motor antifriction bearing |
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2013
- 2013-11-30 CN CN201310622388.4A patent/CN103618402B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201666229U (en) * | 2010-04-15 | 2010-12-08 | 湘电风能有限公司 | Automatic grease discharging device of bearing cavity |
| CN202176702U (en) * | 2011-07-13 | 2012-03-28 | 宝山钢铁股份有限公司 | Lubricating grease discharge device in mechanical closed space |
| CN102510160A (en) * | 2011-10-31 | 2012-06-20 | 永济新时速电机电器有限责任公司 | Motor bearing lubrication system |
| CN202940672U (en) * | 2012-12-05 | 2013-05-15 | 南阳防爆集团股份有限公司 | Bearing device of high-voltage dust explosion-proof three-phase asynchronous motor |
| CN203632433U (en) * | 2013-11-30 | 2014-06-04 | 南阳防爆集团股份有限公司 | Automatic grease-discharging structure of motor antifriction bearing |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734407A (en) * | 2014-12-26 | 2015-06-24 | 山西汾西重工有限责任公司 | Vertical motor bearing oil discharge structure |
| CN106533031A (en) * | 2016-10-30 | 2017-03-22 | 国电联合动力技术(宜兴)有限公司 | Novel bearing grease discharge structure |
| CN112653282A (en) * | 2021-01-05 | 2021-04-13 | 惠州好盈电机有限公司 | Brushless motor with shaft seal effect |
| CN112653282B (en) * | 2021-01-05 | 2021-07-27 | 惠州好盈电机有限公司 | Brushless motor with shaft seal effect |
| WO2022148098A1 (en) * | 2021-01-05 | 2022-07-14 | 惠州好盈电机有限公司 | Brushless motor having shaft sealing effect |
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| Publication number | Publication date |
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| CN103618402B (en) | 2016-09-28 |
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Address after: No. 22 Zhongjing North Road, Nanyang, Henan Province, Henan Patentee after: WOLONG ELECTRIC NANYANG EXPLOSION PROTECTION GROUP Co.,Ltd. Address before: No. 22 Zhongjing North Road, Nanyang, Henan Province, Henan Patentee before: NANYANG EXPLOSION PROTECTION GROUP Co.,Ltd. |
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Effective date of registration: 20180703 Address after: 430000 Hubei Tibet Wuhan Jiangxia area Tibet Dragon Island Science and Technology Park Special 1 Patentee after: ATB MOTORS (WUHAN) Co.,Ltd. Address before: No. 22 Zhongjing North Road, Nanyang, Henan Province, Henan Patentee before: WOLONG ELECTRIC NANYANG EXPLOSION PROTECTION GROUP Co.,Ltd. |