CN105375717A - Motor for large-sized fan of YBF800-900 8-12P series - Google Patents
Motor for large-sized fan of YBF800-900 8-12P series Download PDFInfo
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- CN105375717A CN105375717A CN201510928847.0A CN201510928847A CN105375717A CN 105375717 A CN105375717 A CN 105375717A CN 201510928847 A CN201510928847 A CN 201510928847A CN 105375717 A CN105375717 A CN 105375717A
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- fan
- stretch end
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- axle stretch
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Abstract
The invention discloses a motor for a large-sized fan of YBF800-900 8-12P series. The motor comprises a motor shaft, a main shaft stretch end cover, an auxiliary shaft stretch end cover, a main shaft stretch end bearing, an auxiliary shaft stretch end bearing, an oil path sealing element and a bearing seat, wherein joint surfaces between the main shaft stretch end bearing and the motor shaft and between the main shaft stretch end bearing and the main shaft stretch end cover are explosion prevention joint surfaces during installation of the main shaft stretch end bearing, joint surfaces between the auxiliary shaft stretch end bearing and the motor shaft and between the auxiliary shaft stretch end bearing and the auxiliary shaft stretch end cover are explosion prevention joint surfaces during installation of the auxiliary stretch end bearing, joint surfaces between the main shaft stretch end cover and the bearing seat and the auxiliary shaft stretch end cover and the bearing seat are explosion prevention joint surfaces, a joint surface between a junction box seat and the bearing seat is an explosion prevention joint surface, an auxiliary shaft stretch end is further provided with a fan cover, an external fan is arranged in the fan cover, and the bearing seat is provided with a plurality of cooling pipes in a direction along a circumferential wall. In the motor, the cooling pipes are arranged along the circumferential direction of the bearing seat, thus, an air path is further optimized, the motor noise is reduced, and the application requirement of the large-sized or ultra-large sized fan is met.
Description
Technical field
The present invention relates to flame-proof type blower fan technical field, particularly relate to a kind of YBF800 ~ 9008 ~ 12P serial large-scale electric machine for fan.
Background technology
Mine ventilator is colliery " respiratory system ", and in recent years, due to safety of coal mines, mining requirement, Fan Selection maximizes gradually.YBF serial fan high-pressure explosion-proof type three-phase asynchronous is as mine ventilator motor special, and design of maximizing adds very large difficulty to design of electrical motor.First, along with the increase of draught fan impeller, the axial force that motor bears and radial load increase; Secondly, along with capacity motor increases, motor torque increases, and rotor weight increases; And the bearing type selecting of motor and lubrication, motor performance, motor intensity ensures, motor reliability all needs to revise, so existing motor can not meet the requirement of large fan.
Summary of the invention
The object of this invention is to provide a kind of YBF800 ~ 9008 ~ 12P serial large-scale electric machine for fan, the instructions for use of large-scale mine blower fan can be met, larger axial force and radial load can be born, axle temperature is low, good seal, reliability are high and high strength, high reliability advantage, meets instructions for use that is large-scale, ultra-large type blower fan completely.
The technical solution used in the present invention is:
A kind of YBF800 ~ 9008 ~ 12P serial large-scale electric machine for fan motor, comprise motor shaft, main axle stretch end end cap, secondary axle stretch end end cap, end bearing stretched by main shaft, countershaft stretches end bearing, oil circuit seal and bearing pedestal, the left side of motor shaft is axle stretch end, the right side of motor shaft is secondary axle stretch end, it is flameproof joint with motor shaft, main axle stretch end end cap composition surface respectively that main shaft is stretched when end bearing is installed, it is flameproof joint with motor shaft, secondary axle stretch end end cap composition surface respectively that countershaft is stretched when end bearing is installed, and major and minor axle stretch end end cap and bearing pedestal faying face are flameproof joint; The faying face of junction box seat and bearing pedestal is flameproof joint; Described secondary axle stretch end is also provided with fan housing, is provided with external fan in fan housing, and the direction of described bearing pedestal circumferentially wall is provided with many cooling water pipes, and one end of cooling water pipe is arranged in fan housing, and the other end communicates along bearing pedestal with main axle stretch end air.
Described bearing pedestal adopts the bearing pedestal of thin oil lubricant rolling bearing.
Described oil circuit seal comprises oil baffle and oil sealing, and described oil baffle is separately positioned on the both sides near end bearing stretched by main shaft, countershaft stretches end bearing, and oil sealing is arranged near oil baffle both sides, prevents leakage of oil.
Described external fan is centrifugal fan, and the blade surface of centrifugal fan is parallelogram, and centrifugal fan external diameter is 1500mm, and the air outlet of centrifugal fan, just to support circumference cloth area under control, effectively promotes cooling water pipe air intake ability.
The bilateral main insulation tmi=4.9mm(10kV level of machine winding coil), copper consumption increases by 4.5%, effectively reduces heat load.
Described set of terminal box, at the urceolus of blower fan, is connected with motor lines by wiring neck, is convenient to field connection.
The present invention, under the prerequisite meeting the mining requirement of explosion-proof criteria GB/3836, avoids leakage of oil by using thin oil lubricant rolling bearing and arranging while oil circuit sealing cools motor; Further the present invention arranges cooling water pipe by the circumferencial direction along bearing pedestal, and then optimizes wind path, reduces noise of motor; The present invention can meet the instructions for use of large-scale mine blower fan, can bear larger axial force and radial load, and axle temperature is low, good seal, reliability are high and high strength, high reliability advantage, meets instructions for use that is large-scale, ultra-large type blower fan completely.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the scheme of installation of described wiring box.
Embodiment
As illustrated in fig. 1 and 2, the present invention includes motor shaft 20, main axle stretch end end cap 4, secondary axle stretch end end cap, end bearing 3 stretched by main shaft, countershaft stretches end bearing, oil circuit seal and bearing pedestal 6, the left side of motor shaft 20 is main axle stretch end 2, the right side of motor shaft 20 is secondary axle stretch end 10, it is flameproof joint 1 with motor shaft 20, main axle stretch end end cap 4 composition surface respectively that main shaft is stretched when end bearing 3 is installed, it is flameproof joint with motor shaft 20, secondary axle stretch end end cap composition surface respectively that countershaft is stretched when end bearing is installed, and major and minor axle stretch end end cap and bearing pedestal 6 are flameproof joint 5; Junction box seat 14 and bearing pedestal 6 are flameproof joint; Described secondary axle stretch end is also provided with fan housing 7, is provided with external fan 9 in fan housing 7, and the direction of described bearing pedestal 6 circumferentially wall is provided with many cooling water pipes 8, and one end of cooling water pipe 8 is arranged in fan housing 7, and the other end communicates along bearing pedestal 6 with main axle stretch end air.According to manufacturing experience and checking for many years, electric machine structure optimal design, for motor I C511 circumference pipe laying structure, external fan 9 adopts particular design (referring to Fig. 2), the large blast of air quantity is high, and adopts air outlet just to support blast pipe, lifting motor outer ventilation circuit cooling capacity.
Described bearing pedestal 6 adopts the bearing pedestal of thin oil lubricant rolling bearing.Described thin oil lubricant rolling bearing structure is existing known technology, specifically repeats no more.Conventional scroll bearing uses grease lubrication, is difficult to meet the low bearing temperature design of this motor.Thin oil lubricant rolling bearing structure is under the power of lubricating oil gas station outside, enters bearing chamber, lubricating bearings, goes out from spill port, oil circulation effective cooling lubricating bearings from fuel feed hole.Described oil circuit seal comprises oil baffle and oil sealing, and described oil baffle arranges near bearing both sides, and oil sealing is arranged near oil baffle both sides, prevents leakage of oil.Be flameproof joint with axle, end cap composition surface respectively when bearing is installed, flame proof parameter meets the mining requirement of GB/3836
Described external fan 9 is centrifugal fan, external fan 9 external diameter φ 1500mm, and external fan 9 blade surface is 290X240 parallelogram, and external fan 9 designs air port just to support circumference cloth area under control, effectively promotes cooling water pipe air intake ability.The present invention stretches installation draught fan impeller through the electric machine main shaft calculated, during blower fan running, for YBF900M1-101400kW10kV, radial load 42000N, axial force 24820N, rotor weight 50700kg, calculate by analysis with above-mentioned parameter: the axle stretch end journal bearing life-span calculates: 90000 hours, qualified (motor shaft agree basic rating life 4-5 ten thousand hours) the axle stretch end cod life-span calculates: 270000 hours, qualified (motor shaft agree basic rating life 4-5 ten thousand hours) shaft extension strength check d >=φ 148.9 is qualified.(by " mechanical design handbook. middle volume. the second edition ", Chemical Industry Press) calculate.It is qualified that motor-shaft extending strength theory calculates.Meet the requirements.
Thinning insulation technology is taked in machine winding coil insulation, and bilateral main insulation tmi=5.3mm is thinning is bilateral main insulation tmi=4.9mm(10kV level), copper consumption increases by 4.5%, effectively reduces heat load.By above measure, rationally reduce electric machine temperature rise.Described terminal box 14 is arranged on the urceolus 13 of blower fan, is connected with motor lines by wiring neck 12.Motor body is arranged on blower fan inner core, and terminal box 14 but stretches out blower fan urceolus, is convenient to field connection.
The special YBF900M1-101400kW10kV motor manufacturing of the Fia mine ventilator FBCDZNO.40 blower fan that the present invention manufactures for ore deposit, Yongxing, Zuoquan of Yang Mei group, Shaanxi for the electric Nanyang Explosion Protection Group Co., Ltd. in Wolong has carried out explanation as above.And the control Main Means of motor oscillating is rotor high-speed dynamic balancing and stator mode analysis, measuring technology.The present invention, by rotor high-speed dynamic balancing technique, effectively reduces rotor unbalance value, reduces the vibration factor to motor in rotor high-speed operation process.By three-dimensional modeling, finite element analysis, analyzes motor mode, is that the state-owned frequency of motor and the state-owned frequency of stator are effectively avoided, and with measuring technology checking, avoids motor to resonate and cause vibration.Because said method is existing known technology and method; so do not repeat them here concrete steps; the present invention's protection be the motor special of large-scale mine blower fan; design of electrical motor manufacture process; each parts, in purchase, production process, are tested according to industry relevant criterion, are monitored, guarantee product quality; perform by high request, ensure the motor quality of production.
Claims (6)
1. YBF800 ~ 9008 ~ 12P serial large-scale electric machine for fan motor, comprise motor shaft, main axle stretch end end cap, secondary axle stretch end end cap, end bearing stretched by main shaft, countershaft stretches end bearing, oil circuit seal and bearing pedestal, the left side of motor shaft is axle stretch end, the right side of motor shaft is secondary axle stretch end, it is characterized in that: main shaft stretch end bearing install time respectively with motor shaft, main axle stretch end end cap composition surface is flameproof joint, countershaft stretch end bearing install time respectively with motor shaft, secondary axle stretch end end cap composition surface is flameproof joint, main, secondary axle stretch end end cap and bearing pedestal faying face are flameproof joint, the faying face of junction box seat and bearing pedestal is flameproof joint, described secondary axle stretch end is also provided with fan housing, is provided with external fan in fan housing, and the direction of described bearing pedestal circumferentially wall is provided with many cooling water pipes, and one end of cooling water pipe is arranged in fan housing, and the other end communicates along bearing pedestal with main axle stretch end air.
2. YBF800 ~ 9008 according to claim 1 ~ 12P serial large-scale electric machine for fan, is characterized in that: described bearing pedestal adopts the bearing pedestal of thin oil lubricant rolling bearing.
3. YBF800 ~ 9008 according to claim 2 ~ 12P serial large-scale electric machine for fan, it is characterized in that: described oil circuit seal comprises oil baffle and oil sealing, described oil baffle is separately positioned on the both sides near end bearing stretched by main shaft, countershaft stretches end bearing, oil sealing is arranged near oil baffle both sides, prevents leakage of oil.
4. YBF800 ~ 9008 according to claim 3 ~ 12P serial large-scale electric machine for fan, it is characterized in that: described external fan is centrifugal fan, the blade surface of centrifugal fan is parallelogram, centrifugal fan external diameter is 1500mm, the air outlet of centrifugal fan, just to support circumference cloth area under control, effectively promotes cooling water pipe air intake ability.
5. YBF800 ~ 9008 according to claim 4 ~ 12P serial large-scale electric machine for fan, is characterized in that: the bilateral main insulation tmi=4.9mm(10kV level of machine winding coil), copper consumption increases by 4.5%, effectively reduces heat load.
6. YBF800 ~ 9008 according to claim 5 ~ 12P serial large-scale electric machine for fan, is characterized in that: described set of terminal box, at the urceolus of blower fan, is connected with motor lines by wiring neck, is convenient to field connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510928847.0A CN105375717A (en) | 2015-12-11 | 2015-12-11 | Motor for large-sized fan of YBF800-900 8-12P series |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510928847.0A CN105375717A (en) | 2015-12-11 | 2015-12-11 | Motor for large-sized fan of YBF800-900 8-12P series |
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| Publication Number | Publication Date |
|---|---|
| CN105375717A true CN105375717A (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510928847.0A Pending CN105375717A (en) | 2015-12-11 | 2015-12-11 | Motor for large-sized fan of YBF800-900 8-12P series |
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| CN (1) | CN105375717A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411027A (en) * | 2016-11-01 | 2017-02-15 | 重庆市科诚电机制造有限公司 | Motor heat dissipation shell |
| CN108736649A (en) * | 2018-08-31 | 2018-11-02 | 卧龙电气南阳防爆集团股份有限公司 | A kind of high increased safety low speed synchromotor in low center |
| CN111555550A (en) * | 2019-02-08 | 2020-08-18 | 东芝三菱电机产业系统株式会社 | Totally-enclosed outer fan type rotating electrical machine and outer fan cover |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2862480Y (en) * | 2005-04-13 | 2007-01-24 | 江苏锡安达防爆股份有限公司 | Fan motor with flame-proof type thrust axletree |
| CN101958620A (en) * | 2010-10-28 | 2011-01-26 | 南阳防爆集团股份有限公司 | High-voltage explosion-proof type three-phase asynchronous motor |
| CN202190169U (en) * | 2011-09-02 | 2012-04-11 | 南阳防爆集团股份有限公司 | High-pressure flame-proof three-phase asynchronous motor |
| CN203522407U (en) * | 2013-10-16 | 2014-04-02 | 安徽精瑞新能源设备有限公司 | High-voltage motor |
| CN205453441U (en) * | 2015-12-11 | 2016-08-10 | 卧龙电气南阳防爆集团股份有限公司 | YBF800~900 8~12P series motor for large fan |
-
2015
- 2015-12-11 CN CN201510928847.0A patent/CN105375717A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2862480Y (en) * | 2005-04-13 | 2007-01-24 | 江苏锡安达防爆股份有限公司 | Fan motor with flame-proof type thrust axletree |
| CN101958620A (en) * | 2010-10-28 | 2011-01-26 | 南阳防爆集团股份有限公司 | High-voltage explosion-proof type three-phase asynchronous motor |
| CN202190169U (en) * | 2011-09-02 | 2012-04-11 | 南阳防爆集团股份有限公司 | High-pressure flame-proof three-phase asynchronous motor |
| CN203522407U (en) * | 2013-10-16 | 2014-04-02 | 安徽精瑞新能源设备有限公司 | High-voltage motor |
| CN205453441U (en) * | 2015-12-11 | 2016-08-10 | 卧龙电气南阳防爆集团股份有限公司 | YBF800~900 8~12P series motor for large fan |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411027A (en) * | 2016-11-01 | 2017-02-15 | 重庆市科诚电机制造有限公司 | Motor heat dissipation shell |
| CN108736649A (en) * | 2018-08-31 | 2018-11-02 | 卧龙电气南阳防爆集团股份有限公司 | A kind of high increased safety low speed synchromotor in low center |
| CN111555550A (en) * | 2019-02-08 | 2020-08-18 | 东芝三菱电机产业系统株式会社 | Totally-enclosed outer fan type rotating electrical machine and outer fan cover |
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| PB01 | Publication | ||
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Application publication date: 20160302 |