CN103307099B - motor sliding bearing - Google Patents
motor sliding bearing Download PDFInfo
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- CN103307099B CN103307099B CN201310216804.0A CN201310216804A CN103307099B CN 103307099 B CN103307099 B CN 103307099B CN 201310216804 A CN201310216804 A CN 201310216804A CN 103307099 B CN103307099 B CN 103307099B
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- Prior art keywords
- watt
- pad
- bolt
- water
- groove
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 230000004888 barrier function Effects 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000009413 insulation Methods 0.000 abstract description 13
- 238000001816 cooling Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 230000006378 damage Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention belongs to plant equipment technical field of bearings, particularly relate to a kind of motor sliding bearing, it is made up of with alignment pin by installing bolt upper and lower two halves, described upper and lower two halves include a watt body respectively, watt pad, insulating barrier, sealing ring, dielectric pin, insulated sleeve and bolt, it is characterized in that: a watt external surface is provided with a watt pad, watt pad with watt body between be provided with insulating barrier, and adopt the bolt with insulated sleeve to fasten after positioning by dielectric pin, make to form current path by bolt between watt body and watt pad, described pad endoporus is provided with current groove and seal groove, seal groove is located at current groove vicinity, sealing ring is placed in seal groove, outer surface is provided with into water interface and water outlet mouthpiece, and water inlet interface and water outlet mouthpiece communicate with current groove.Obtain and provide the benefit that: (1) water cavity structure is simple, seal reliable；(2) insulation system arranges ingenious, effectively prevent the generation of fastness, and insulation effect is more reliable；(3) water cooling function uses with the combination of insulation function, not only makes motor bearings have insulation characterisitic but also improves bearing capacity and critical speed, enhances serviceability greatly.
Description
Technical field
The invention belongs to plant equipment technical field of bearings, particularly relate to a kind of motor sliding bearing.
Background technology
Along with the enforcement of the development of national economy and national energy policy, all kinds of motor devices all develop towards direction large-scale, efficient.Therefore, it is supported parts by the increase of root diameter and the raising of rotating speed--and sliding bearing is had higher requirement, and it is mainly manifested in: how to improve its bearing capacity and critical speed and how to prevent the shaft current destruction to oil film bearings.
At present, most motor sliding bearings are operationally, it is actually and is in mixed lubricating state, be i.e. boundary lubrication and the simultaneous state of hydrodynamic lubrication, therefore when load increase, rotating speed improve, its PV value strengthens, (PV value--the friction power loss in reflection unit are and the parameter of heating) PV is more big, and bearing temperature rise is more high, it is easy to cause breaking of boundary film, cause bearing damage, affect unit safety operation.Traditional solutions is to set water cavity in bearing body, utilize cooling current to carry out the heat with bearing running, but this bearing arrangement is complicated, it is necessary to special Mold Making water cavity, production cost is higher, and due to the particularity of the equipment such as motor, its rotating shaft is with voltage, and the electric action of water can make electric current form path, thus producing galvano-cautery with brearing bore, destroying bearing film, make bearing failure, therefore how making bearing have insulation function is also the problem that pole need to solve.Existing motor bearings is such as shown in JB/T5888-2005, it is by pasting polytetrafluoroethylene film and bearing shell isolation at bearing support internal sphere, thus cutting off path of shaft current, but this structure cannot realize the setting of bearing water cooling function, and insulation film is being installed and is very easily being damaged in maintenance process, renovation technique after damage is also considerably complicated, it is necessary to special tooling, causes great inconvenience.Therefore how well being combined by the cooling function of the insulation characterisitic of sliding bearing Yu current, being effectively improved its bearing capacity with critical speed is the problem that we need solution badly.
Summary of the invention
The present invention provides a kind of motor sliding bearing being effectively improved its bearing capacity and critical speed to solve the problems referred to above.
The solution of the present invention is achieved in that a kind of motor sliding bearing, it is made up of with alignment pin by installing bolt upper and lower two halves, described upper and lower two halves include a watt body respectively, watt pad, insulating barrier, sealing ring, dielectric pin, insulated sleeve and bolt, it is characterized in that: a watt external surface is provided with a watt pad, watt pad with watt body between be provided with insulating barrier, and adopt the bolt with insulated sleeve to fasten after positioning by dielectric pin, make to form current path by bolt between watt body and watt pad, described pad endoporus is provided with current groove and seal groove, seal groove is located at current groove vicinity, sealing ring is placed in seal groove, outer surface is provided with into water interface and water outlet mouthpiece, and water inlet interface and water outlet mouthpiece communicate with current groove.
By adopting such scheme, the present invention obtains and provides the benefit that: (1) water cavity structure is simple, seals reliable, compared with tradition water cavity bearing, cooling water engaging surface is long-pending big, good cooling results, without using special Mold Making, dramatically saves on production cost；(2) the ingenious setting of insulation system, effectively prevent the generation of fastness, and insulation effect is more reliable；(3) water cooling function uses with the combination of insulation function, not only makes motor bearings have insulation characterisitic but also improves bearing capacity and critical speed, enhances serviceability greatly.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the structure of invention.
Fig. 2 is the A-A sectional view of invention.
Fig. 3 is the B-B sectional view of invention.
The water stream channel structural representation of Fig. 4 present invention.
1, watt in figure: pad, 2, sealing ring, 3, insulating barrier, 4, watt body, 5, dielectric pin, 6, holding screw, 7, insulated sleeve, 8, bolt, 9, bolt is installed, 10, alignment pin, 11, water inlet interface, 12, water outlet mouthpiece.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical scheme of invention is further described: as shown in Figure 1, Figure 2, Figure 3, Figure 4, motor sliding bearing of the present invention, being made up of by installing bolt 9 and alignment pin 10 upper and lower two halves, described upper and lower two halves include a watt pad 1, sealing ring 2 respectively, insulating barrier 3, watt body 4, dielectric pin 5, holding screw 6, insulated sleeve 7, bolt 8, it is characterized by: watt pad 1 and watt body 4 between set insulating barrier 3, insulating barrier 3 is fitted in watt body 4 outer surface, and has with a watt endoporus for pad 1 and contact surface preferably；Watt pad 1 endoporus be provided with current groove and seal groove, seal groove is located at current groove vicinity, and outer surface is provided with into water interface 11 and water outlet mouthpiece 12, and water inlet interface 11 and water outlet mouthpiece 12 communicate with groove；Dielectric pin 5 and bolt 8 is adopted to position, fasten with watt body 4 after watt pad 1 loading sealing ring 2, and bolt 8 be provided around insulated sleeve 7 make watt body 4 and watt pad 1 between cannot form current path, it is carried out spacing by the holding screw 6 that is provided externally with of dielectric pin 5, it is prevented that its landing.Above-mentioned motor sliding bearing, by adopting insulating barrier 3, insulated sleeve 7, dielectric pin 5 by watt body 4 and watt pad 1 isolation, watt body 4 is made to achieve good insulation effect, and insulating element is all relatively fixed on watt body, contactless with the supporting parts of bearing, thus the effective generation avoiding fastness so that insulation effect is more reliable；Two halves up and down at bearing respectively set independent water stream channel, take away a watt surface heat, effectively reduce the temperature rise of bearing, so that the bearing capacity of bearing and critical speed improve, meanwhile, water channel is provided around sealing ring 2, make the cooling unlikely seepage of water, make bearing run more secure, reliable；The setting of Split type water-cooling structure, easy to process, seal reliable, compare tradition water-cooling bearing liner, the contact area of current is bigger, and cooling effect is better, and makes water cavity without particular manufacturing craft, saves cost, improves the market competitiveness.
Claims (1)
1. a motor sliding bearing, it is made up of with alignment pin by installing bolt upper and lower two halves, described upper and lower two halves include a watt body respectively, watt pad, insulating barrier, sealing ring, dielectric pin, insulated sleeve and bolt, it is characterized in that: a watt external surface is provided with a watt pad, watt pad with watt body between be provided with insulating barrier, and adopt the bolt with insulated sleeve to fasten after positioning by dielectric pin, make to form current path by bolt between watt body and watt pad, described pad endoporus is provided with current groove and seal groove, seal groove is located at current groove vicinity, sealing ring is placed in seal groove, outer surface is provided with into water interface and water outlet mouthpiece, and water inlet interface and water outlet mouthpiece communicate with current groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310216804.0A CN103307099B (en) | 2013-05-24 | 2013-05-24 | motor sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310216804.0A CN103307099B (en) | 2013-05-24 | 2013-05-24 | motor sliding bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103307099A CN103307099A (en) | 2013-09-18 |
| CN103307099B true CN103307099B (en) | 2016-07-20 |
Family
ID=49132680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310216804.0A Active CN103307099B (en) | 2013-05-24 | 2013-05-24 | motor sliding bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103307099B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644795A (en) * | 2016-09-23 | 2017-05-10 | 上海交通大学 | Testing machine for abrasive wear test of bearing bush |
| CN113833686B (en) * | 2021-09-30 | 2023-09-12 | 华能(大连)热电有限责任公司 | Anti-drop's industrial pump water tile |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60252818A (en) * | 1984-05-28 | 1985-12-13 | Hitachi Ltd | Steam regulating valve |
| JPH099560A (en) * | 1996-05-24 | 1997-01-10 | Hitachi Ltd | Laser beam scanner motor |
| JP2008190376A (en) * | 2007-02-02 | 2008-08-21 | Ntn Corp | Turbine unit for air cycle refrigerating machine |
| CN201298773Y (en) * | 2008-11-19 | 2009-08-26 | 无锡哈电电机有限公司 | Positioning bearing structure of sliding bearing motor |
| CN201303265Y (en) * | 2008-11-28 | 2009-09-02 | 周少华 | Sliding bearing insulation device for vertical motor |
| CN202165461U (en) * | 2011-07-11 | 2012-03-14 | 申科滑动轴承股份有限公司 | Water cooling structure for plain bearing bush |
| CN202586595U (en) * | 2012-05-29 | 2012-12-05 | 湖南崇德工业科技有限公司 | Shaft current preventing structure used for large or medium-sized motor sliding bearing |
| CN202690780U (en) * | 2012-04-06 | 2013-01-23 | 苏州汇川技术有限公司 | Bearing cooling structure and motor with cooling structure |
| CN203641267U (en) * | 2013-05-24 | 2014-06-11 | 吴彩霞 | Motor sliding bearing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202065349U (en) * | 2011-04-26 | 2011-12-07 | 楼才信 | Self-lubricating insulation bearing bush |
-
2013
- 2013-05-24 CN CN201310216804.0A patent/CN103307099B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60252818A (en) * | 1984-05-28 | 1985-12-13 | Hitachi Ltd | Steam regulating valve |
| JPH099560A (en) * | 1996-05-24 | 1997-01-10 | Hitachi Ltd | Laser beam scanner motor |
| JP2008190376A (en) * | 2007-02-02 | 2008-08-21 | Ntn Corp | Turbine unit for air cycle refrigerating machine |
| CN201298773Y (en) * | 2008-11-19 | 2009-08-26 | 无锡哈电电机有限公司 | Positioning bearing structure of sliding bearing motor |
| CN201303265Y (en) * | 2008-11-28 | 2009-09-02 | 周少华 | Sliding bearing insulation device for vertical motor |
| CN202165461U (en) * | 2011-07-11 | 2012-03-14 | 申科滑动轴承股份有限公司 | Water cooling structure for plain bearing bush |
| CN202690780U (en) * | 2012-04-06 | 2013-01-23 | 苏州汇川技术有限公司 | Bearing cooling structure and motor with cooling structure |
| CN202586595U (en) * | 2012-05-29 | 2012-12-05 | 湖南崇德工业科技有限公司 | Shaft current preventing structure used for large or medium-sized motor sliding bearing |
| CN203641267U (en) * | 2013-05-24 | 2014-06-11 | 吴彩霞 | Motor sliding bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103307099A (en) | 2013-09-18 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20191210 Address after: 315000 no.636 Binhai 2nd Road, Hangzhou Bay New District, Ningbo City, Zhejiang Province Patentee after: Ningbo Yiming Bearing Co., Ltd. Address before: 311800 Zhejiang city of Zhuji province Tao Hu Cun Huan East Street No. 56 Patentee before: Wu Caixia |