CN105391220B - A kind of high-pressure explosion-proof type three-phase asynchronous of low-temperature-rise - Google Patents
A kind of high-pressure explosion-proof type three-phase asynchronous of low-temperature-rise Download PDFInfo
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- CN105391220B CN105391220B CN201510928673.8A CN201510928673A CN105391220B CN 105391220 B CN105391220 B CN 105391220B CN 201510928673 A CN201510928673 A CN 201510928673A CN 105391220 B CN105391220 B CN 105391220B
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- rotor
- under control
- area under
- engine base
- end cap
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/06—Cast metal casings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/165—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a kind of high-pressure explosion-proof type three-phase asynchronous of low-temperature-rise, it includes engine base, and rotor and stator are provided in engine base, is respectively equipped with drive end bearing bracket and rear end cap in the rear and front end of rotor, and the center of circle of rotor and stator is less than the center of circle of engine base；Cooling area under control is provided on engine base, cools down the cooling tube that engine base both ends are provided through in area under control；One end that rotor is located at rear end cap is provided with external fan, and one end that engine base is located at rear end cap is provided with fan housing；The composition surface of engine base and drive end bearing bracket and rear end cap is disposed as flameproof joint；Rotor holds rotation connection by fore bearing and rear axle respectively with drive end bearing bracket and rear end cap, and fore bearing and the composition surface on the composition surface of the rotor and drive end bearing bracket, rear bearing and the rotor and rear end cap are disposed as flameproof joint.The present invention reduces center height under the premise of performance is ensured, and have low-temperature-rise, it is low shake, low noise, high-performance and the advantages of high reliability.
Description
Technical field
The present invention relates to a kind of high-pressure explosion-proof type three-phase asynchronous of low-temperature-rise.
Background technology
With raising of the international community to green economy, the low-carbon economy degree of awareness, various countries vigorously promote the use efficient electric
Machine, China disclose " detailed rules for the implementation of high-efficiency electric motor product promotion " on May 31st, 2010 by the Ministry of Finance, the Committee of Development and Reform, this
The release of one policy plays facilitation to the popularization of China's efficient high-pressure threephase asynchronous.
On December 18th, 2013, GB Committee website " National Standard of the People's Republic of China announce 2013 No. 26 " file
It issues《High-tension motor energy efficiency market and efficiency grade》Standard GB/T 30254-2013, to height in the form of standard
Pressure motor efficiency has carried out specification, and high pressure Energy Efficiency Standard is mandatory standard, and September is formally implemented on the 1st within 2014.
With being on the increase for high voltage flameproof motor demand, existing flameproof high-voltage threephase asynchronous it is low in
It is high to be distinctly claimed user lower motor center through that can not meet the needs of market very much for heart height.Moreover, existing flame-proof type is high
The heat dissipation effect for pressing threephase asynchronous is bad, and temperature raising block influences efficiency, in addition high noise during use.It is above-mentioned
Shortcoming seriously affects the Performance And Reliability of complete machine.
Therefore, this is ensureing performance just there is an urgent need to design a kind of high-pressure explosion-proof type three-phase asynchronous of low-temperature-rise
Under the premise of to reduce center high, and have low-temperature-rise, it is low shake, low noise, high-performance and the advantages of high reliability.
Invention content
The present invention in order to solve the problems in the prior art, provides a kind of high voltage flameproof three-phase asynchronous electric of low-temperature-rise
Machine, reduces that center is high under the premise of performance is ensured, and have low-temperature-rise, it is low shake, low noise, high-performance and high reliability it is excellent
Point.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：A kind of high voltage flameproof three-phase of low-temperature-rise
Asynchronous motor, it includes engine base, rotor and stator is provided in engine base, is respectively equipped in the rear and front end of rotor and connects with engine base
The center of circle of the drive end bearing bracket and rear end cap connect, the rotor and stator is less than the center of circle of the engine base；
Cooling area under control is provided on the engine base, cools down the cooling tube that engine base both ends are provided through in area under control, cooling tube
With the rotor and the centerline axis parallel of stator, the cooling area under control includes the first cooling area under control and the second cooling area under control；The
One cooling area under control around the stator in the cooling tube of concentric ring-shaped multilayer arrangement by forming；Second cooling area under control is arranged on first
The top in area under control is cooled down, by being formed around stator in the cooling tube of arc-shaped multilayer arrangement；
One end that the rotor is located at rear end cap is provided with external fan, and one end that the engine base is located at rear end cap is provided with wind
Cover, the fan housing is provide with the external fan, and passes through suction nozzle lap hermetically between external fan and fan housing；
The composition surface of the engine base and drive end bearing bracket and rear end cap is disposed as flameproof joint；The rotor and drive end bearing bracket it
Between be rotatablely connected by fore bearing, the composition surface of fore bearing and the rotor and drive end bearing bracket is disposed as flameproof joint, described
Rotation connection is held by rear axle between rotor and rear end cap, the composition surface of rear bearing and the rotor and rear end cap be disposed as every
Quick-fried composition surface.
The cooling tube in the first cooling area under control is successively distributed from inner ring to outer shroud；The cooling tube in the second cooling area under control
It is successively distributed from inner ring to outer shroud.
The fan housing inner wall installs quieter material.
The external fan uses force(d) (draft) fan.
The drive end bearing bracket and rear end cap use cast iron end cap.
The rotor is cast-aluminum rotor.
The beneficial effects of the invention are as follows：
1st, the center of circle of rotor and stator is less than the center of circle of the engine base in the present invention, and engine base justifies engine base using eccentric structure
Concentric, motor center height do not reduce a seat No. since engine base is eccentric for the heart and rotor and the stator center of circle, motor oscillating and existing
Field installation has improvement.
2. being provided with cooling area under control in the present invention on engine base, the cooling tube that engine base both ends are provided through in area under control is cooled down,
Cooling tube and the rotor and the centerline axis parallel of stator, the cooling area under control include the first cooling area under control and the second cooling tube
Area；First cooling area under control around the stator in the cooling tube of concentric ring-shaped multilayer arrangement by forming；Second cooling area under control setting
On the top in the first cooling area under control, by being formed around stator in the cooling tube of arc-shaped multilayer arrangement, the first cooling area under control and the
The combination in two cooling areas under control realizes the asymmetric stringing of cooling tube, and upper how lower few, cooling capacity greatly improves, and realizes low temperature
It rises.
3. one end that rotor is located at rear end cap is provided with external fan, one end that the engine base is located at rear end cap is provided with wind
Cover, the fan housing is provide with the external fan, and is disappeared between external fan and fan housing by suction nozzle lap hermetically, the installation of fan housing inner wall
Sound material, external fan use force(d) (draft) fan, increase cooling capacity, reduce mechanical loss reality, reduce noise, and existing inner and outer air paths are efficient
Heat exchange.
4. the composition surface of engine base and drive end bearing bracket and rear end cap is disposed as flameproof joint；The rotor and drive end bearing bracket it
Between be rotatablely connected by fore bearing, the composition surface of fore bearing and the rotor and drive end bearing bracket is disposed as flameproof joint, described
Rotation connection is held by rear axle between rotor and rear end cap, the composition surface of rear bearing and the rotor and rear end cap be disposed as every
Quick-fried composition surface, improves flame proof ability, and flame proof parameter meets GB/3836 requirements.
5. using cast iron end cap, cast iron end cap is optimized for compared to traditional steel plate end cap for drive end bearing bracket and rear end cap, enhance
Heat-sinking capability；The rotor is cast-aluminum rotor, easy to process, convenient for taking Process Quality Control to parts and components of rotor, is subtracted
Small amount of unbalance.
6. the present invention under the premise of performance is ensured reduce center height, and have low-temperature-rise, it is low shake, low noise, high-performance
And the advantages of high reliability.
Description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the side view that area under control is cooled down in the present invention；
Fig. 3 is the side view in the cooling area under control of concentric engine base.
Specific embodiment
As depicted in figs. 1 and 2, the high-pressure explosion-proof type three-phase asynchronous of a kind of low-temperature-rise of the invention, it includes machine
Seat 5 is provided with rotor 1 and stator 8 in engine base 5, be respectively equipped in the rear and front end of rotor 1 drive end bearing bracket 4 that is connect with engine base 5 and
The center of circle 13 of rear end cap 6, the rotor 1 and stator 8 is less than the center of circle 14 of the engine base 5, and engine base 5 makes machine using eccentric structure
Concentric, motor center height do not reduce a seat No. since engine base is eccentric for 5 centers of circle of seat and rotor 1 and 8 center of circle of stator, and motor shakes
Dynamic and in-site installation has improvement.Drive end bearing bracket 4 and rear end cap 6 are optimized for using cast iron end cap compared to traditional steel plate end cap
Cast iron end cap, enhances heat-sinking capability.Rotor 1 is cast-aluminum rotor, easy to process, convenient for taking processing quality to parts and components of rotor
Control reduces amount of unbalance.
Cooling area under control is provided on the engine base 5, cools down the cooling tube 7 that engine base both ends are provided through in area under control, cooling
Pipe 7 and the rotor 1 and the centerline axis parallel of stator 8, the cooling area under control include the first cooling area under control 71 and second and cool down
Area under control 72；First cooling area under control 71 around the stator 8 in the cooling tube 7 of concentric ring-shaped multilayer arrangement by forming, the first cooling
The cooling tube 7 in area under control 71 is successively distributed from inner ring to outer shroud；Second cooling area under control 72 is arranged on the top in the first cooling area under control 71,
It around stator 8 in the cooling tube 7 of arc-shaped multilayer arrangement by forming, and the cooling tube 7 in the second cooling area under control 72 is from inner ring to outer shroud
Successively it is distributed.The combination that first cooling area under control 71 and second cools down area under control 72 realizes the asymmetric stringing of cooling tube 7, it is upper mostly under
Few, cooling capacity greatly improves, and realizes low-temperature-rise.
One end that the rotor 1 is located at rear end cap 6 is provided with external fan 10, and one end that the engine base 5 is located at rear end cap is set
Fan housing 9 is equipped with, the fan housing 9 is provide with the external fan 10, and is taken between external fan 10 and fan housing 9 by the sealing of suction nozzle 11
It connecing, 9 inner wall of fan housing installation quieter material 12, external fan adopts 10 with force(d) (draft) fan, and increase cooling capacity reduces mechanical loss reality,
Noise is reduced, realizes inner and outer air paths high efficient heat exchanging.
The composition surface of the engine base 5 and drive end bearing bracket 4 and rear end cap 6 is disposed as flameproof joint 3；The rotor 1 is with before
It is rotatablely connected between end cap 4 by fore bearing 2, fore bearing 2 and the composition surface of the rotor 1 and drive end bearing bracket 4 are disposed as flame proof
Composition surface 3 is rotatablely connected between the rotor 1 and rear end cap 6 by rear bearing 15, rear bearing 15 and the rotor 1 and rear end
The composition surface of lid 6 is disposed as flameproof joint 3, improves flame proof ability, and flame proof parameter meets GB/3836 requirements.
Concentric engine base refers to that the rotor center of circle and the engine base center of circle are concentric shown in Fig. 3, and conventional motors are mainly same using this kind
Scheming seat, from figure 3, it can be seen that the cooling tube of the concentric engine base of tradition, along concentric circle stringing, cooling tube is selected as 300*
φ30（A diameter of 30mm of cooling tube, quantity 300）.From figure 2 it can be seen that the engine base 5 of the present invention uses eccentric structure,
And the cooling area under control on engine base 5 uses the asymmetric stringing of cooling tube, upper how lower few, cooling tube is selected as 450* φ 25（Cooling
A diameter of 25mm of pipe, quantity 450）.
Due to the conditions such as motor feels hot and inner and outer air paths it is identical in the case of, cooling capacity depend on circumference stringing cut
Face circumference（Cross-sectional periphery length=quantity * π * D, D represents cooling pipe diameter）.
As can be seen from the above table, the cross-sectional periphery length for 25 schemes of 450* φ that Fig. 2 is used is compared to the 300* that Fig. 3 is used
The cross-sectional periphery length of 30 schemes of φ improves 1.25 times, and cooling capacity greatly improves.
Through the above scheme, the present invention under the premise of performance is ensured reduce center height, and have low-temperature-rise, it is low shake,
The advantages of low noise, high-performance and high reliability.
The above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although with reference to above-described embodiment to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Still can the present invention be modified or be waited
With replacing, without departing from the spirit or scope of the invention, or any substitutions, the power in the present invention should all be covered
In sharp claimed range.
Claims (6)
1. a kind of high-pressure explosion-proof type three-phase asynchronous of low-temperature-rise, it includes engine base, rotor and stator is provided in engine base,
The drive end bearing bracket and rear end cap being connect with engine base are respectively equipped in the rear and front end of rotor, it is characterised in that：
The center of circle of the rotor and stator is less than the center of circle of the engine base；
Cooling area under control is provided on the engine base, cools down the cooling tube that engine base both ends are provided through in area under control, cooling tube and institute
The centerline axis parallel of rotor and stator is stated, the cooling area under control includes the first cooling area under control and the second cooling area under control；First is cold
But area under control around the stator in the cooling tube of concentric ring-shaped multilayer arrangement by forming；Second cooling area under control is arranged on the first cooling
The top in area under control, by being formed around stator in the cooling tube of arc-shaped multilayer arrangement；First cooling area under control and the second cooling area under control
Combination realize the asymmetric stringing of cooling tube, it is upper how lower few；
One end that the rotor is located at rear end cap is provided with external fan, and one end that the engine base is located at rear end cap is provided with fan housing,
The fan housing is provide with the external fan, and passes through suction nozzle lap hermetically between external fan and fan housing；
The composition surface of the engine base and drive end bearing bracket and rear end cap is disposed as flameproof joint；Lead between the rotor and drive end bearing bracket
Fore bearing rotation connection is crossed, the composition surface of fore bearing and the rotor and drive end bearing bracket is disposed as flameproof joint, the rotor
Rotation connection is held by rear axle between rear end cap, the composition surface of rear bearing and the rotor and rear end cap is disposed as flame proof and connects
Conjunction face.
2. the high-pressure explosion-proof type three-phase asynchronous of low-temperature-rise according to claim 1, it is characterised in that：Described first
The cooling tube in cooling area under control is successively distributed from inner ring to outer shroud；It is described second cooling area under control cooling tube from inner ring to outer shroud successively
Distribution.
3. the high-pressure explosion-proof type three-phase asynchronous of low-temperature-rise according to claim 1 or 2, it is characterised in that：It is described
Fan housing inner wall installs quieter material.
4. the high-pressure explosion-proof type three-phase asynchronous of low-temperature-rise according to claim 3, it is characterised in that：The exogenous wind
Fan is using force(d) (draft) fan.
5. the high-pressure explosion-proof type three-phase asynchronous of low-temperature-rise according to claim 3, it is characterised in that：The front end
Lid and rear end cap use cast iron end cap.
6. the high-pressure explosion-proof type three-phase asynchronous of low-temperature-rise according to claim 3, it is characterised in that：Described turns
Son is cast-aluminum rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510928673.8A CN105391220B (en) | 2015-12-15 | 2015-12-15 | A kind of high-pressure explosion-proof type three-phase asynchronous of low-temperature-rise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510928673.8A CN105391220B (en) | 2015-12-15 | 2015-12-15 | A kind of high-pressure explosion-proof type three-phase asynchronous of low-temperature-rise |
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| Publication Number | Publication Date |
|---|---|
| CN105391220A CN105391220A (en) | 2016-03-09 |
| CN105391220B true CN105391220B (en) | 2018-06-22 |
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| CN201510928673.8A Active CN105391220B (en) | 2015-12-15 | 2015-12-15 | A kind of high-pressure explosion-proof type three-phase asynchronous of low-temperature-rise |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105871142A (en) * | 2016-03-28 | 2016-08-17 | 朱德金 | Self-help hotpot conveyor belt drive motor |
| CN107994734A (en) * | 2017-12-19 | 2018-05-04 | 卧龙电气集团股份有限公司 | A kind of high power density fire-proof motor |
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2015
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|---|---|---|---|---|
| KR20050045657A (en) * | 2003-11-12 | 2005-05-17 | 엘지전자 주식회사 | Rotor assembly for outer rotor type electric motor |
| CN2852502Y (en) * | 2005-10-28 | 2006-12-27 | 佳木斯电机股份有限公司 | High-voltage flame-proof type high-speed self-lubricating three-phase asynchronous motor |
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