CN104235193A - Roll-rolling composite bearing system and electric high-speed rotating machine with same - Google Patents
Roll-rolling composite bearing system and electric high-speed rotating machine with same Download PDFInfo
- Publication number
- CN104235193A CN104235193A CN201310238897.7A CN201310238897A CN104235193A CN 104235193 A CN104235193 A CN 104235193A CN 201310238897 A CN201310238897 A CN 201310238897A CN 104235193 A CN104235193 A CN 104235193A
- Authority
- CN
- China
- Prior art keywords
- roll
- bearing
- rolling composite
- composite bearing
- gear
- 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.)
- Pending
Links
Abstract
The invention relates to a roll-rolling composite bearing system for an electric high-speed rotating machine. The roll-rolling composite bearing system comprises a roll-rolling composite bearing support and an oil mist lubricating/cooling and separation/recycling system. The roll-rolling composite bearing support is characterized in that a pair of small ball bearings is installed in inner holes of a gear-type fixed sleeve, a pair of large ball bearings is installed on the outer circle of the gear-type fixed sleeve, a pneumatic nozzle disc is installed on the gear circumference of the gear-type fixed sleeve, and the nozzle disc and a bearing seat form a gas chamber. Compressed gas entering the gas chamber drives the gear-type fixed sleeve to rotate at a high speed through the nozzle disc, the rotation speed of the gear-type fixed sleeve is adjusted through a pressure adjusting valve, and the requirement of the bearing system on the relative motion speed of a roll-rolling composite bearing can be met. The oil mist lubricating/cooling and separation/recycling system comprises a pressure regulation valve, an oil mist device and an oil-gas separator. According to the electric high-speed rotating machine, the working rotation speed of a motor can reach more than 40000r/min, and the effect is remarkable.
Description
Technical field
The present invention relates to a kind of high speed electric rotary machine with rolling-rolling composite bearing system, in particular to for being arranged on transport facility---on vehicle etc. by the rotor bearing of the motor-driven air compressor of high-capacity and high-speed, cold air machine, centrifugal refigerating compressor etc., wherein motor is with the High Rotation Speed being such as not less than tens thousand of turns per minute.The present invention also relates to comprise this roll-other high speed electric rotary machine of rolling composite bearing system.
Background technique
One of technical problem underlying that high-power, high-revolving high-speed electric expreess locomotive (20kw, more than 40000/min) is designed is exactly design bearing.At present, the active magnetic bearing supporting means adopting electromagnetic bearing and rolling bearing mixing bearing is generally all considered to this high-power, high-revolving motor bearings design, but this magnetic bearing automatically controlled and manufacture complicated, expensive, reliability is lower, at present can't commercialization; The reasons such as liquid sliding bearing bearing capacity that is comparatively large because of frictional loss during motor High Rotation Speed and aerostatic slide bearing is little are limited by use to a certain extent also; Adopt ceramic ball angular contact ball bearing as this high-power, high-revolving motor bearings, domesticly at present yet there are no relevant report.
Provided by the inventionly roll-rolling composite bearing system, according to the relative movement superposition principle of object, bearing limit speed is the limit speed sum of inside and outside two rolling bearings, thus can greatly improve adopt roll-rolling composite bearing system makes the working speed of the high speed electric rotary machine supported, the cost performance of its reliability and motor also improves thus.
Summary of the invention
Inventing the technological scheme taked is a kind ofly roll-rolling composite bearing system for high speed electric rotary machine, comprising: roll-rolling composite bearing supporting, oil mist lubrication/cooling-separation/recovery system.
Roll-rolling composite bearing supporting comprise: one for installing the gear type fixed cover of inside and outside ball bearing, one end is processed with external gear with alternative air impeller, the ball bearing of the same model of little a pair loads the endoporus of fixed cover, and the ball bearing of a pair large same model is contained on the cylindrical of fixed cover.The circumference of gear of gear type fixed cover is installed an air-blast atomizer dish, spray nozzle plate and bearing support form gas chamber.After the pressurized gas produced by the cold air machine from high speed electric rotary machine enters gas chamber, by the wheeled fixed cover High Rotation Speed of spray nozzle plate driving gear, its rotating speed regulates by pressure regulator valve, realize bearing arrangement to rolling-the speed of related movement requirement of rolling composite bearing.Oil mist lubrication/cooling-separation/recovery system is made up of pressure regulator valve, oil sprayer, deaerator etc., its objective is to rolling-rolling composite bearing supporting and motor internal provide with the lubrication/cooled gas of mist of oil and the separation and recovery to mist of oil gas.
When the invention has the beneficial effects as follows that the working speed of this high speed electric rotary machine reaches more than 40000r/min, motor is stable, reliable.
Accompanying drawing explanation
Fig. 1 a kind ofly of the present inventionly to roll-cold air machine embodiment the plan view of the high speed electric rotary machine of rolling composite bearing system as comprising
Fig. 2 be as comprise high speed electric rotary machine of the present invention with rolling-plan view of rolling composite bearing supporting
Fig. 3 be of the present inventionly to roll as comprising-rolling composite bearing system in oil mist lubrication/cooling-separation/recovery system schematic diagram
Fig. 4 is the plan view that gear type fixed cover in Fig. 2 and spray nozzle plate combine
Embodiment
Below in conjunction with accompanying drawing, specific embodiments of the invention are described.Fig. 1 is expressed as a kind of plan view of cold air machine 1, the vertical arrangement of this refrigerator 1, centrifugal-flow compressor 7 is installed in upper end, and turbo-expander 20 is installed in lower end, comprise by one of the present inventionly to roll-motor 3 that rolling composite bearing system supports directly connects, three's coaxial rotating.In Fig. 1, refrigerator 1 comprises a motor 3 in the middle.Motor 3 comprises rotor 5 and stator 4.Rotor 5 two ends are settled and are rolled-rolling composite bearing supporting 2.Size angular contact ball bearing in the rolling of rotor 5 two ends-rolling composite bearing supporting 2 is installation face-to-face refrigerator 1 in.Bottom the turbo-expander 20 of refrigerator 1 lower end, one axial off-load is installed and supports the angular contact ball bearing 21 that turboexpander stablizes rotation, to lay down rotor system weight for one of main purpose, make thrust load suffered by the rolling of motor about 3 two ends-rolling composite bearing even, to reaching the substantially identical operating life cycle.The limit speed of axial off-load ball bearing 21 is more than the twice of refrigerator 1 working speed, and pre-load force that it is slight is substantially suitable with rotor system weight, is controlled by the wavy spring 22 bottom axial off-load bearing 21.The size of thrust load suffered by a pair small ball bearing 15a, 15b in the rolling of motor about 3 two ends-rolling composite bearing supporting 2 and a pair large ball bearing 12a, 12b, controls by being arranged on the spring 9 that the rolling of motor 3 upper end-rolling composite bearing supports on 2.The gas compressor 7 impeller eye end of refrigerator 1 upper end, is provided with a pair back-to-back angular contact ball bearing 8a, 8b, and to support, compression impellor is stable to be rotated.
Shown in Fig. 1 and Fig. 3, high speed electric rotary machine, with rolling-rolling composite bearing system, comprising: roll-rolling composite bearing supporting 2, oil mist lubrication/cooling-separation/recovery system 26.
Rolling in Fig. 2 and Fig. 4-rolling composite bearing supporting 2 comprises: one for installing the gear type fixed cover 14 of inside and outside ball bearing, one end of fixed cover 14 is processed with external gear 24 with alternative air impeller, excircle between cog radial equipartition 6 diameters of gear 24 are the lubricant mist inlet hole 25 of 1.5 ~ 2.0mm; Angular contact ball bearing 15a, 15b of a pair same model load in the endoporus of fixed cover 14 with group mode of connecting, lining ring 16 and outer lining ring 17 in installing between two bearings; Another is also contained on the cylindrical of fixed cover 14 with group mode of connecting to angular contact ball bearing 12a, 12b of same model, lining ring 18 and outer lining ring 19 in installing between two bearings; The narrow limit, outer ring of the inside and outside ball bearing on fixed cover 14 in the same way and is all installed towards gear 24 extreme direction, and inside and outside ball bearing is connected as one by fixed cover 14; The excircle of the gear 24 on fixed cover 14 is installed an air-blast atomizer dish 23, air-blast atomizer dish 23 connects with bearing support endosome 13, composition roll-rolling composite bearing supporting 2 gas chamber; Upper and lower twice " 0 " shape rubber seal 11 cylindrical of bearing support endosome 13 is equipped with, bearing support endosome 13 loads the vibration when Spielpassung forming 0.045-0.052mm in bearing support ectosome 10 works with absorption refrigerating machine 1, and overall formation rolls-rolling composite bearing supporting 2.
In Fig. 3, oil mist lubrication/cooling-separation/recovery system 26 is made up of pressure regulator valve 27, oil sprayer 29, deaerator 31 etc.
In Fig. 1 and Fig. 3, when the cold air machine 1 of high speed electric rotary machine normally works, through pressure regulator valve 27,---intercooler 28---is divided into two after oil sprayer 29 and enters motor about 3 two ends a part of pressurized gas that the gas compressor 7 of refrigerator 1 exports, the pressurized gas at two ends more each point of two-way enters in motor 3: and a road direction rolls-and the gas chamber of rolling composite bearing supporting 2 provides and calms the anger, rotated by the wheeled fixed cover 14 of spray nozzle plate 23 driving gear, by ball bearing two ends and middle lubrication/cooling airway hole, lubrication and cooling is carried out to the ball bearing inside and outside fixed cover 14 simultaneously, another road enters motor 3 as the cooled gas of motor 3 inside and cools, through each road gas that motor 3 inside is discharged, after being separated by deaerator 31, the entrance introducing gas compressor 7 reclaims.
According to the structural principle of rolling in Fig. 2-rolling composite bearing supporting 2, enable to roll-rolling composite bearing supporting 2 in ball bearing 15a and 15b drag ball bearing 12a and 12b and rotate, and the condition producing relative movement is according to certain rules: M
1+ M '>=M
2, in formula, M1-ball bearing 15a, 15b friction torque; M2-ball bearing 12a, 12b friction torque; The auxiliary drive moment of M '-ball bearing 15a, 15b, the i.e. driving moment that gear type fixed cover 14 produced by air-blast atomizer of aerodynamic force.Roll-rolling composite bearing supporting 2 in the relative movement rotating speed of sizes of balls bearing can by M ' adjustment, also namely roll-the Stress control of the gas chamber of rolling composite bearing supporting 2 by regulating to enter.
In Fig. 1, roll-rolling composite bearing supporting 2 in the lubricating system of bearing in high speed electric rotary machine starting-operation-stopped process be, extremely of short duration starting period is intermittent type oil jet lubrication, there is provided oil spout by the electronic lubricating pump 30 in Fig. 3, lubricate in the bearing being injected upper and lower two ends by nozzle opening 6a, 6b, 6c; The pressurized gas produced by the cold air machine 1 of high speed electric rotary machine self during normal work makes mist of oil or oil-air lubrication; Of short duration stop phase relies on and to fall with rotating speed and fall hypobaric mist of oil gas and lubricate, and maintains motor 3 and rotates to stopping.
In Fig. 1, the stator 4 of the cold air machine 1 of high speed electric rotary machine adopts Air flow, the type of cooling is: ambient air flows in the stator 4 of motor 3 perpendicular to motor 3 axial direction, effluent air enters gas compressor 7 entrance of refrigerator 1, sucked by gas compressor 7, formed and cooled by self gas handling system air-breathing of the gas compressor 7 of refrigerator 1.
Roll-rolling composite bearing system owing to adopting in Fig. 2 and Fig. 3, the refrigerator 1 represented by Fig. 1, during high speed operation, effect is significant.
Claims (4)
1. high speed electric rotary machine is with rolling-rolling composite bearing a system, comprising: roll-rolling composite bearing supporting (2), oil mist lubrication/cooling-separation/recovery system (26);
Roll-rolling composite bearing supporting (2) comprising: one for installing the gear type fixed cover (14) of inside and outside ball bearing, one end of fixed cover (14) is processed with external gear (24) with alternative air impeller, the several inlet hole of the excircle between cog radial equipartition (25) of gear (24); Angular contact ball bearing 15a, 15b of a pair same model load in the endoporus of fixed cover (14) with group mode of connecting, lining ring (16) and outer lining ring (17) in installing between two bearings; Another is also contained on the cylindrical of fixed cover (14) with group mode of connecting to angular contact ball bearing 12a, 12b of same model, lining ring (18) and outer lining ring (19) in installing between two bearings; The narrow limit, outer ring of the inside and outside ball bearing on fixed cover (14) in the same way and is all installed towards gear (24) extreme direction, and inside and outside ball bearing is connected as one by fixed cover (14); Installation-air-blast atomizer dish (23) on the excircle of the gear (24) on fixed cover (14), air-blast atomizer dish (23) connects with bearing support endosome (13), composition roll-rolling composite bearing supporting (2) gas chamber; Upper and lower twice " 0 " shape rubber seal (11) cylindrical of bearing support endosome (13) is equipped with, bearing support endosome (13) loads formation Spielpassung in bearing support ectosome (10), and overall formation rolls-rolling composite bearing supporting (2);
Oil mist lubrication/cooling-separation/recovery system (26) is made up of pressure regulator valve (27), oil sprayer (29), deaerator (31) etc., when the cold air machine (1) of high speed electric rotary machine normally works, through pressure regulator valve (27),---intercooler (28)---is divided into two after oil sprayer (29) and enters motor (3) two ends up and down a part of pressurized gas that the gas compressor (7) of refrigerator (1) exports, the pressurized gas at two ends more each point of two-way enters in motor (3): and-road direction rolls-and the gas chamber of rolling composite bearing supporting (2) provides and calms the anger, rotated by the wheeled fixed cover of spray nozzle plate (23) driving gear (14), by ball bearing two ends and middle lubrication/cooling airway hole, lubrication and cooling is carried out to the ball bearing inside and outside fixed cover (14) simultaneously, another road enters motor cooling as the cooled gas that motor (3) is inner, through each road gas that motor (3) inside is discharged, after being separated by deaerator (31), the entrance introducing gas compressor (7) reclaims.
2. according to claim 1ly roll-rolling composite bearing system, it is characterized in that:
Roll-rolling composite bearing supporting (2) in ball bearing 15a, 15b can drag ball bearing 12a, 12b and rotate, and the condition producing relative movement is according to certain rules: M
1+ M '>=M
2, in formula, the friction torque of M1-ball bearing 15a, 15b; The friction torque of M2-ball bearing 12a, 12b; The auxiliary drive moment of M '-ball bearing 15a, 15b, the i.e. driving moment that gear type fixed cover (14) produced by air-blast atomizer of aerodynamic force; Roll-rolling composite bearing supporting (2) in the relative movement rotating speed of sizes of balls bearing by regulating M ' control, also namely roll-the Stress control of the gas chamber of rolling composite bearing supporting (2) by regulating to enter.
3. according to claim 1ly roll-rolling composite bearing system, it is characterized in that:
Roll-rolling composite bearing supporting (2) in the lubricating system of bearing in high speed electric rotary machine working procedure be, extremely of short duration starting period is intermittent type oil jet lubrication, oil spout is provided, by lubrication in nozzle opening (6a, 6b) injection bearing by electronic lubricating pump (30); The pressurized gas produced by the cold air machine (1) of high speed electric rotary machine self during normal work makes mist of oil or oil-air lubrication; Of short duration stop phase relies on and to fall with rotating speed and fall hypobaric mist of oil gas and lubricate, and maintains motor (3) and rotates to stopping.
4. the cold air machine (1) of a high speed electric rotary machine, comprise one and roll-rolling composite bearing system by according to claim 1, and the stator (4) of motor (3) adopts Air flow, the type of cooling is: ambient air flows in the stator (4) of motor (3) perpendicular to motor (3) axial direction, effluent air enters gas compressor (7) entrance of refrigerator (1), sucked by gas compressor (7), formed and cooled by self gas handling system air-breathing of the gas compressor of cold air machine (1) (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310238897.7A CN104235193A (en) | 2013-06-17 | 2013-06-17 | Roll-rolling composite bearing system and electric high-speed rotating machine with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310238897.7A CN104235193A (en) | 2013-06-17 | 2013-06-17 | Roll-rolling composite bearing system and electric high-speed rotating machine with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104235193A true CN104235193A (en) | 2014-12-24 |
Family
ID=52223887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310238897.7A Pending CN104235193A (en) | 2013-06-17 | 2013-06-17 | Roll-rolling composite bearing system and electric high-speed rotating machine with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104235193A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017055013A1 (en) * | 2015-09-29 | 2017-04-06 | Bielomatik Leuze Gmbh + Co. Kg | Lubricating device and method for lubricating machine parts |
| CN109804170A (en) * | 2016-10-13 | 2019-05-24 | 阿博格有限公司 | Mold closed cell with heat management |
| CN110285137A (en) * | 2019-07-10 | 2019-09-27 | 安徽晨光精工机电科技有限公司 | A kind of rotational supporting structure for pressure vessel stirring device |
-
2013
- 2013-06-17 CN CN201310238897.7A patent/CN104235193A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017055013A1 (en) * | 2015-09-29 | 2017-04-06 | Bielomatik Leuze Gmbh + Co. Kg | Lubricating device and method for lubricating machine parts |
| CN109804170A (en) * | 2016-10-13 | 2019-05-24 | 阿博格有限公司 | Mold closed cell with heat management |
| CN109804170B (en) * | 2016-10-13 | 2020-10-27 | 阿博格有限公司 | Mold closing unit with thermal management |
| CN110285137A (en) * | 2019-07-10 | 2019-09-27 | 安徽晨光精工机电科技有限公司 | A kind of rotational supporting structure for pressure vessel stirring device |
| CN110285137B (en) * | 2019-07-10 | 2020-12-18 | 安徽晨光精工机电科技有限公司 | Rotary supporting structure for pressure vessel stirring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105422479B (en) | Centrifugal compressor and there is its refrigeration system | |
| CN201916671U (en) | Rolling bearing vector lubricating device | |
| US8230974B2 (en) | Windmill and zero gravity lubrication system for a gas turbine engine | |
| CN104169546A (en) | Device for recovering lubricating oil from an epicyclic reduction gear | |
| CN105458306B (en) | Use ultraprecise angular contact ball and the high-speed electric main shaft device of cylinder roller bearing | |
| CN104235193A (en) | Roll-rolling composite bearing system and electric high-speed rotating machine with same | |
| CN103671559A (en) | High-speed rolling bearing lubrication device | |
| CN201193598Y (en) | Hermetic compressor | |
| CN207701324U (en) | A kind of large-scale compressor lubricating system | |
| CN104019131A (en) | Gas dynamic-static pressure mixing bearing system for high-speed motor and electric rotating machinery | |
| CN101545184A (en) | Lubrication system for rotating shuttle components of embroidery machines | |
| CN201799331U (en) | Supporting and lubricating structure for vertical shaft of cupulate belt pulley of disc-type separator | |
| CN104612764B (en) | A kind of cooling turbine unit of the coaxial two-way expansion of three-wheel | |
| CN1991179A (en) | Oil-feeding means of horizontal compressor | |
| CN203336197U (en) | Disc separator high-speed bearing lubricating device | |
| CN104455331A (en) | Vertical self-lubricating heavy-load high-speed-increase gearbox | |
| CN201246308Y (en) | Bearing mechanism of single screw compressor inner star wheel rotor | |
| CN104165185A (en) | Roll-rolling composite bearing system for high-speed motor and high-speed electric rotary machine | |
| CN207195194U (en) | Screw compressor upper bracket and screw compressor | |
| CN207004759U (en) | A kind of vibration-damping noise-reduction type vehicle-mounted air conditioner compressor spindle assemblies | |
| CN205101525U (en) | Vertical axle assembly | |
| CN203051043U (en) | Refrigerator compressor and lubricating oil supply device | |
| CN101757991B (en) | Lubricating device for bearing on vertical shaft of disc-type separator | |
| CN109114103A (en) | Intelligent hydrodynamic bearing | |
| CN105041646B (en) | A kind of oil-free vortex air compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141224 |
|
| WD01 | Invention patent application deemed withdrawn after publication |