CN105634227A - Frequency control brake three-phase asynchronous motor - Google Patents
Frequency control brake three-phase asynchronous motor Download PDFInfo
- Publication number
- CN105634227A CN105634227A CN201610028946.8A CN201610028946A CN105634227A CN 105634227 A CN105634227 A CN 105634227A CN 201610028946 A CN201610028946 A CN 201610028946A CN 105634227 A CN105634227 A CN 105634227A
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- CN
- China
- Prior art keywords
- brake
- braking
- end cap
- asynchronous motor
- phase asynchronous
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- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/32—Structural association of asynchronous induction motors with auxiliary mechanical devices, e.g. with clutches or brakes
-
- 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
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- 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)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
A frequency control brake three-phase asynchronous motor comprises a machine seat, a front end cover, a brake end cover, a rotation shaft, a rotor and a stator, wherein the front end cover is arranged at the front end of the machine seat, the brake end cover is arranged at the rear end of the machine seat, the rotation shaft is limited by matching of the front end cover and the brake end cover, the rotor is fixed on the rotation shaft, the stator is fixed inside the machine seat, the frequency control brake three-phase asynchronous motor also comprises an AC electromagnetic power-lost actuator, the AC electromagnetic power-lost actuator is fixed at the rear end of the machine seat or the brake end cover and comprises a brake disc, the brake disc can get close to or deviate from the brake end cover under the control of the AC electromagnetic power-lost actuator, and the brake disc can be in friction with the brake end cover to rapidly brake the rotation shaft when the brake disc gets close to the brake end cover.
Description
[technical field]
The invention relates to motor technology field, particularly relate to a kind of brake 3-phase asynchronous motor of frequency conversion.
[background technology]
Along with the development of science and technology, motor is the requisite electrical equipment in industry-by-industry field. Motor refers to a kind of calutron realizing electric energy conversion or transmission according to the law of electromagnetic induction. Motor of the prior art comes in every shape. Such as, divide by working power kind: direct current generator and alternating current generator can be divided into. Wherein alternating current generator also can be divided into: monophase machine and three phase electric machine. The Main Function of motor is to produce driving torque, converts electrical energy into mechanical energy, and as the power source of electrical appliance or various machinery. Motor is energy-saving and emission-reduction major fields, and JIUYUE in 2012 has promulgated again on the 1st that new standard GB/T28575-2012 specifies, every Energy Efficiency Standard does not reach the product of GB compulsive requirement can not be continued to produce and sell, this also just embodies the importance of energy-saving and emission-reduction, and after existing motor power-off, machine shaft is due to inertia, could will stop voluntarily through 1-5 minute greatly, not only waste energy, and it not being suitable for some specific operations, for instance the motor on some punching apparatus necessarily requires quick stopping after a loss of power.
Therefore, being necessary in fact to provide a kind of new technical scheme, after motor power-off, rotating shaft can stop operating rapidly.
[summary of the invention]
The embodiment of the present application provides a kind of brake 3-phase asynchronous motor of frequency conversion, and the brake 3-phase asynchronous motor of this frequency conversion can stop operating rapidly after a loss of power.
For achieving the above object, the invention provides a kind of brake 3-phase asynchronous motor of frequency conversion, include support, it is installed in the drive end bearing bracket of support front end, it is installed in the braking end cap of support rear end, rotating shaft spacing with drive end bearing bracket and braking end cap, it is fixed on the rotor in rotating shaft and is fixed on the stator of base inner, the brake 3-phase asynchronous motor of described frequency conversion also includes the ac electromechanical electricity-loss brake being fixed on described support or dog point cover back-end, described ac electromechanical electricity-loss brake includes geared sleeve and braking dish, described geared sleeve is connected with machine shaft by key, described braking dish engages with geared sleeve, described braking dish can move forward and backward on the axial direction of rotating shaft relative to ac electromechanical electricity-loss brake, described braking dish can realize closer or far from braking end cap under the control of ac electromechanical electricity-loss brake, described braking dish can rub with braking end cap when braking end cap, and when braking dish with braking end cap contact generation rub time described braking dish and geared sleeve between axially cannot mutually rotate in rotating shaft.
Further, being provided with spring part between described braking dish and geared sleeve, described braking dish is placed on the axial direction of rotating shaft relative to gear and can move forward and backward.
Further, described braking dish is sheathed in rotating shaft, and the outer surface of described geared sleeve is formed external gear teeth correspondence and the interior gear teeth meshing of formation on braking dish.
Further, the brake 3-phase asynchronous motor of described frequency conversion also includes and is positioned at the converter rosette that support is peripheral, described converter rosette is connected with ac electromechanical electricity-loss brake by cable, described converter rosette drive ac electromechanical electricity-loss brake absorption or discharge described braking dish, with correspondence realize braking dish away from or near braking end cap.
Further, described braking end cap is burnishing surface near the surface of braking dish side.
Further, described braking end cap adopts grey cast-iron HT200 to make.
Further, the iron core of described stator and/or rotor adopts that 50ww470 stalloy is cold rolling forms.
Further, the brake 3-phase asynchronous motor of described frequency conversion includes the blower fan being fixed on support rear end, and described blower fan encloses is located at braking end cap and ac electromechanical electricity-loss brake periphery.
Further, being provided with fan in described blower fan, described fan is positioned at the rear end of braking end cap and ac electromechanical electricity-loss brake, and and brakes end cap and the setting of ac electromechanical electricity-loss brake interval.
Further, described blower fan periphery be installed with for control fan blower fan rosette, described blower fan rosette is connected by jump lead line with fan.
The invention has the beneficial effects as follows: ac electromechanical electricity-loss brake is set up at support rear, coordinated with braking end cap by the braking dish correspondence arranged on ac electromechanical electricity-loss brake, the fast braking of countershaft is realized under the driving of ac electromechanical electricity-loss brake, this external ac electromechanical electricity-loss brake and braking end cap rear are provided with fan, good heat dissipation effect. In addition stator core described in the embodiment of the present application and rotor core adopt that 50ww470 stalloy is cold rolling to be formed. The parameter of described 50ww470 stalloy is thickness 0.5mm, Wuhan Iron and Steel Plant, No yield point, and iron loss is worth 0.47 watt every kilogram. Therefore, the eddy current resistance of described stator core and rotor core increases, and eddy-current loss reduces, thus improve the efficiency of this vibration source three-phase abynchronous motor.
[accompanying drawing explanation]
The structural representation of the brake 3-phase asynchronous motor of frequency conversion that Fig. 1 the embodiment of the present application provides.
[detailed description of the invention]
For making the purpose of the embodiment of the present application, technical scheme and advantage clearly, specifically apply for that below in conjunction with the embodiment of the present application the embodiment of the present application technical scheme is clearly and completely described by embodiment and corresponding accompanying drawing. Obviously, described application embodiment is only the embodiment of the present application part application embodiment, rather than whole application embodiments. Based on the application embodiment in the embodiment of the present application, the every other application embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of the embodiment of the present application protection.
Hereinafter, will be described in more detail referring to the accompanying drawings the specific embodiment of the brake 3-phase asynchronous motor of the embodiment of the present application frequency conversion.
What the brake 3-phase asynchronous motor electromagnetic design of the embodiment of the present application frequency conversion adopted is YVFEJ3 series ultra high efficiency frequency conversion threephase asynchronous machine Electromagnetic Design scheme.
As shown in Figure 1, the brake 3-phase asynchronous motor 100 of the embodiment of the present application frequency conversion, include support 1, it is installed in the drive end bearing bracket 3 of support 1 front end, it is installed in the converter rosette 4 of support 1 periphery, it is installed in the braking end cap 7 of support 1 rear end, rotating shaft 2 spacing with drive end bearing bracket 3 and braking end cap 7, the rotor 6 being fixed in rotating shaft 2 is coordinated by hot jacket, it is fixed on the stator 5 within support 1, it is fixed on the ac electromechanical electricity-loss brake 8 outside braking end cap 7 rear end by clamping screw, the blower fan 11 of support 1 rear end it is fixed on by clamping screw, it is arranged on the fan 10 in blower fan 11 and is arranged on the blower fan rosette 9 of blower fan 11 periphery. described blower fan 11 encloses is located at braking end cap 7 and ac electromechanical electricity-loss brake 8 periphery. described fan 10 is positioned at the rear end of braking end cap 7 and ac electromechanical electricity-loss brake 8, for dispelling the heat to braking end cap 7 and ac electromechanical electricity-loss brake 8.
As it is shown in figure 1, described drive end bearing bracket 3 is connected by spiral or clamping is arranged on support 1 front end, described braking end cap 7 is connected by spiral or clamping is arranged on the rear portion of support 1. In a kind of embodiment, described drive end bearing bracket 3 and braking end cap 7 inner surface are provided with screw thread, and described support 1 two ends outer surface is correspondingly provided with screw thread, described drive end bearing bracket 3 and braking end cap 7 and is rotatably connected with support 1 two ends and fixes. In another kind of embodiment, described drive end bearing bracket 3 and braking end cap 7 are provided with threaded hole, and described support 1 two ends are correspondingly provided with threaded hole, described drive end bearing bracket 3 and braking end cap 7 and dock with support 1 two ends fixing by screw by drive end bearing bracket 3 and/or braking end cap 7. In another kind of embodiment, described drive end bearing bracket 3 and braking end cap 7 are provided with clamping part, and described support 1 two ends are correspondingly provided with clamping part, and described corresponding clamping part is mutually clamped, it is achieved drive end bearing bracket 3 and/or braking end cap 7 are fixing with support 1.
As it is shown in figure 1, described drive end bearing bracket 3 and braking end cap 7 offer limiting through hole respectively, described rotating shaft 2 two ends are arranged in drive end bearing bracket 3 and the limiting through hole of braking end cap 7 respectively, tentatively spacing to realize. In better embodiment, described drive end bearing bracket 3 and braking end cap 7 inside are respectively equipped with bearing, and described rotating shaft 2 two ends are arranged in drive end bearing bracket 3 and the bearing of braking end cap 7 respectively. Realizing the spacing of countershaft 2 by bearing, turn 2 when rotating simultaneously, suffered resistance is less, is beneficial to the work of the brake 3-phase asynchronous motor 100 of this frequency conversion, increases the service life. Braking end cap 7 is stretched out in the rear end of the rotating shaft 2 in the embodiment of the present application.
As it is shown in figure 1, described stator 5 is fixed on support 1 inside. Described stator 5 includes stator core and stator winding. Described stator core adopts that 50ww470 stalloy is cold rolling forms. Described stator winding adopts polyester-imide enamel covered wire to make.
It is fixed in rotating shaft 2 as it is shown in figure 1, described rotor 6 is coordinated by hot jacket. It is utilize the principle expanded with heat and contract with cold that hot jacket coordinates, and reaches a kind of method of the purpose of interference fit. Fit system between axle and axle upper connector has three kinds, it may be assumed that interference, transition, three kinds of gap tolerance fit. Interference fit refers to the cooperation with interference (including minimum interference equal to zero). Now, the tolerance range in hole under the tolerance range of axle (size in all directions in hole deduct the axle that matches all directions on the algebraic step of size gained, this difference is for being interference fit time negative). Described rotor 6 includes rotor core and rotor windings. Described rotor core adopts that 50ww470 stalloy is cold rolling forms.
As it is shown in figure 1, described converter rosette 4 is arranged on the support 1 top near front position by screw. Described converter rosette 4 is connected with the stator winding of stator 5 and ac electromechanical electricity-loss brake 8 respectively by cable.
As it is shown in figure 1, described braking end cap 7 adopts grey cast-iron HT200 to make, the outer friction surface of described braking end cap 7 is more smooth.
As it is shown in figure 1, be provided with geared sleeve in described ac electromechanical electricity-loss brake 8, geared sleeve is fixedly linked by key and rotating shaft 2. Braking dish is also included in described ac electromechanical electricity-loss brake 8, geared sleeve within described ac electromechanical electricity-loss brake 8 engages (in the present embodiment with braking dish, described braking dish can be designed to the disc-shaped component being sheathed in rotating shaft 2, the interior gear teeth meshing that the external gear teeth correspondence that the outer surface of described geared sleeve is formed and braking dish are formed). In addition it is provided with spring part between described braking dish and geared sleeve. Axially cannot mutually rotate in rotating shaft 2 between described braking dish and geared sleeve, but described braking dish is placed on the axial direction of rotating shaft 2 relative to gear and can move forward and backward, namely described braking dish can move (being embodied in the embodiment of the present application, can closer or far from dog point lid 7) by relative brake end cap 7.
As it is shown in figure 1, described fan 10 is arranged in the rear end (the embodiment of the present application is positioned at dead astern) of braking end cap 7 and ac electromechanical electricity-loss brake 8, for the heat radiation to braking end cap 7 and ac electromechanical electricity-loss brake 8. Described blower fan rosette 9 is connected with fan 10 by jump lead line, realize individually controlling the rotation of fan 10, such fan 10 rotates individually adjustable, rotary speed will not be changed along with the speed of machine shaft 2 rotary speed, thus avoid because of electric machine frequency reduce time, machine shaft 2 velocity of rotation reduces brings fan 10 rotary speed to reduce thus causing that cold air blast velocity reduces and the defect that makes radiating effect be deteriorated, it also avoid the defect causing insulation ag(e)ing because radiating effect is bad and causing machine life to shorten simultaneously.
The present invention is implemented: converter rosette 4 is used for connecting outside converter, converter rosette 4 is connected with the winding of stator 5 by jump lead line, after stator 5 passes into electric current, forming rotating excitation field, rotor 6 is because also existing relative motion and induced electromotive force and electric current between magnetic field, namely rotating excitation field and rotor 6 exist relative rotation speed, and produce electromagnetic torque with magnetic field interaction, rotor 6 is made to turn over, it is achieved electric energy is to mechanical energy energy conversion, and the rotating shaft 2 that rotarily drives of rotor 6 rotates. Now, ac electromechanical electricity-loss brake 8 by converter rosette 4 be synchronized with motor be electrified time, the braking dish of ac electromechanical electricity-loss brake 8 is held (namely braking dish does not contact) with braking end cap 7, braking action will not be produced, in the rotation process of rotating shaft 2, the braking dish of described ac electromechanical electricity-loss brake 8 and geared sleeve are synchronized with rotating shaft 2 and rotate together.
When power-off time, the braking dish of ac electromechanical electricity-loss brake 8 is released, under the elastic force effect of spring part, braking dish opposed gear set and ac electromechanical electricity-loss brake 8 is made to move to braking end cap 7 direction and contact with braking end cap 7 and produce friction, geared sleeve within ac electromechanical electricity-loss brake 8 engages with braking dish, and the geared sleeve of ac electromechanical electricity-loss brake 8 is connected with machine shaft 2 by key, thus the braking dish of ac electromechanical electricity-loss brake 8 stops rapidly under frictional force effect, then the geared sleeve within electromagnetic power-off brake 8 also stops operating, thus checking rapidly machine shaft 2, thus realizing fast braking, can be widely applied to punch press etc. and need quick stopping operating mode, simultaneously because braking end cap 7 adopts grey cast-iron HT200 to make, wear-resisting, long service life, and owing to the outer friction surface of braking end cap 7 is more smooth, frictional force is big, it is beneficial to braking.
In the present embodiment, owing to the winding of stator 5 adopts polyester-imide enamel covered wire to make, polyester-imide enamel covered wire has that resistance to elevated temperatures is good and the advantage such as resistance is little, both the loss of electric current had been reduced, economize on electricity is substantially, effectively extend again the service life of the winding of stator 5, and owing to 50ww470 stalloy has the advantages such as electrical efficiency height, magnetic disturbance be little, the iron core of stator 5 and rotor 6 all adopts that 50ww470 stalloy is cold rolling to be formed, can effectively improve the energy conversion efficiency of motor, it is possible to meet up-to-date national energy consumption standard. In addition when converter changes frequency of supply, by frequency shift, positive example changes rotor 6 rotating speed, thus realizing frequency control, to meet various device rate working conditions change requirement, blower fan rosette 9 is for connecting the power supply of 380V, 50HZ, fan 10 is connected with fan rosette 9 by jump lead line, and such fan 10 rotary speed is individually adjustable, it is ensured that reliable and effective radiating effect.
Stator core described in the embodiment of the present application and rotor core adopt that 50w470 stalloy is cold rolling to be formed. The parameter of described 50ww470 stalloy is thickness 0.5mm, Wuhan Iron and Steel Plant, No yield point, and iron loss is worth 0.47 watt every kilogram. Described iron loss includes the magnetic hystersis loss of magnetic material, eddy-current loss and residual loss, and unit is W/kg (watt/kilogram). Magnetic hystersis loss refers to that ferromagnetic material is as magnetizing mediums, and the inherent loss produced under certain excitation field (changes produced loss in magnetic energy process at electric energy); When eddy-current loss refers to magnetic flux generation alternation, iron core produces induction electromotive force and then produces faradic current, and faradic current is swirl shape, is referred to as eddy current; The loss that faradic current produces on iron core resistance is exactly eddy-current loss; Residual loss refers to the loss except magnetic hystersis loss and eddy-current loss, owing to proportion is less, it is possible to ignore.
The foregoing is only embodiments herein, be not limited to the application. To those skilled in the art, the application can have various modifications and variations. All make within spirit herein and principle any amendment, equivalent replacement, improvement etc., should be included within claims hereof scope.
Claims (10)
1. the brake 3-phase asynchronous motor of frequency conversion, include support, it is installed in the drive end bearing bracket of support front end, it is installed in the braking end cap of support rear end, rotating shaft spacing with drive end bearing bracket and braking end cap, it is fixed on the rotor in rotating shaft and is fixed on the stator of base inner, it is characterized in that: the brake 3-phase asynchronous motor of described frequency conversion also includes the ac electromechanical electricity-loss brake being fixed on described support or dog point cover back-end, described ac electromechanical electricity-loss brake includes geared sleeve and braking dish, described geared sleeve is connected with machine shaft by key, described braking dish engages with geared sleeve, described braking dish can move forward and backward on the axial direction of rotating shaft relative to ac electromechanical electricity-loss brake, described braking dish can realize closer or far from braking end cap under the control of ac electromechanical electricity-loss brake, described braking dish can rub with braking end cap when braking end cap, and when braking dish with braking end cap contact generation rub time described braking dish and geared sleeve between axially cannot mutually rotate in rotating shaft.
2. the brake 3-phase asynchronous motor of frequency conversion according to claim 1, it is characterised in that: being provided with spring part between described braking dish and geared sleeve, described braking dish is placed on the axial direction of rotating shaft relative to gear and can move forward and backward.
3. the brake 3-phase asynchronous motor of frequency conversion according to claim 1, it is characterised in that: described braking dish is sheathed in rotating shaft, and the outer surface of described geared sleeve is formed external gear teeth, the interior gear teeth meshing that external gear correspondence and braking dish are formed.
4. the brake 3-phase asynchronous motor of frequency conversion as claimed in any of claims 1 to 3, it is characterized in that: the brake 3-phase asynchronous motor of described frequency conversion also includes and is positioned at the converter rosette that support is peripheral, described converter rosette is connected with ac electromechanical electricity-loss brake by cable, described converter rosette drive ac electromechanical electricity-loss brake absorption or discharge described braking dish, with correspondence realize braking dish away from or near braking end cap.
5. the brake 3-phase asynchronous motor of frequency conversion as claimed in any of claims 1 to 3, it is characterised in that: described braking end cap is burnishing surface near the surface of braking dish side.
6. the brake 3-phase asynchronous motor of frequency conversion as claimed in any of claims 1 to 3, it is characterised in that: described braking end cap adopts grey cast-iron HT200 to make.
7. the brake 3-phase asynchronous motor of frequency conversion as claimed in any of claims 1 to 3, it is characterised in that: the iron core of described stator and/or rotor adopts that 50ww470 stalloy is cold rolling to be formed.
8. the brake 3-phase asynchronous motor of frequency conversion according to Xu any one in claims 1 to 3, it is characterized in that: the brake 3-phase asynchronous motor of described frequency conversion includes the blower fan being fixed on support rear end, described blower fan encloses is located at braking end cap and ac electromechanical electricity-loss brake periphery.
9. the brake 3-phase asynchronous motor of frequency conversion according to claim 8, it is characterized in that: in described blower fan, fan is installed, described fan is positioned at the rear end of braking end cap and ac electromechanical electricity-loss brake, and and brakes end cap and the setting of ac electromechanical electricity-loss brake interval.
10. the brake 3-phase asynchronous motor of frequency conversion according to claim 9, it is characterised in that: described blower fan periphery be installed with for control fan blower fan rosette, described blower fan rosette is connected by jump lead line with fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610028946.8A CN105634227A (en) | 2016-01-08 | 2016-01-08 | Frequency control brake three-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610028946.8A CN105634227A (en) | 2016-01-08 | 2016-01-08 | Frequency control brake three-phase asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105634227A true CN105634227A (en) | 2016-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610028946.8A Pending CN105634227A (en) | 2016-01-08 | 2016-01-08 | Frequency control brake three-phase asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105634227A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849487A (en) * | 2017-04-01 | 2017-06-13 | 江苏超力电器有限公司 | A kind of clutch DC Brushless Motor of band brake |
| CN115765310A (en) * | 2022-12-07 | 2023-03-07 | 深圳三火实业发展有限公司 | Stepping servo motor with power-off braking function |
-
2016
- 2016-01-08 CN CN201610028946.8A patent/CN105634227A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849487A (en) * | 2017-04-01 | 2017-06-13 | 江苏超力电器有限公司 | A kind of clutch DC Brushless Motor of band brake |
| CN106849487B (en) * | 2017-04-01 | 2024-03-05 | 江苏超力电器有限公司 | DC brushless motor with brake for clutch |
| CN115765310A (en) * | 2022-12-07 | 2023-03-07 | 深圳三火实业发展有限公司 | Stepping servo motor with power-off braking function |
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Application publication date: 20160601 |
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