CN204118993U - Realize the electric block synchronous machine of two braking - Google Patents
Realize the electric block synchronous machine of two braking Download PDFInfo
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- CN204118993U CN204118993U CN201420628135.8U CN201420628135U CN204118993U CN 204118993 U CN204118993 U CN 204118993U CN 201420628135 U CN201420628135 U CN 201420628135U CN 204118993 U CN204118993 U CN 204118993U
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Abstract
The utility model is a kind of electric block synchronous machine realizing two braking, comprise motor stator, rotor, motor shaft and electric machine casing, electric machine casing comprises motor housing and electric motor end cap, motor shaft is through rotor, it is characterized in that: on motor shaft, the two ends of rotor are respectively equipped with the first Compress Spring and the second Compress Spring that are free to slide, motor shaft outside two Compress Springs is respectively equipped with again the first brake silpper be free to slide, second brake silpper, the section that two brake silppers match with motor shaft is provided with spline and the keyway of transmitting torque, the first described brake silpper, second brake silpper is corresponding between electric machine casing to be provided with and to be pasted on the first brake strip on electric machine casing and the second brake strip, during motor dead electricity, the axial gapless of rotor, two Compress Springs at motor shaft two ends contact two brake silppers respectively, and are contacted with electric machine casing by two brake strips, realize two brakings of electromagnetic force and frictional force.
Description
Technical field
The utility model relates to hoisting of a kind of electric block and uses braking motor, a kind of electric block synchronous machine of two braking is particularly disclosed, when motor dead electricity, rotor two ends magnetic field dissipate, and the Compress Spring at rotor two ends passes through the slip of the brake silpper at two ends under the effect of elastic force, make brake silpper and electric machine casing produce pressure to brake strip thus produce frictional force, rotor can not rotate, and realizes two brakings of electromagnetic force and frictional force.
Background technology
Hoisting of current electric block field has two kinds of modes of braking with braking motor.Wherein a kind of employing is traditional braking motor, only arrange 1 cover braking system at motor afterbody, this mode of braking causes rocking of electric block and bearing because of by the damage after axial force because unidirectional spring pressure makes motor one direction bear axial impact force, reduces fail safe and the reliability of electric block.And another directly installs 1 disk brake on motor shaft in addition, the maximum shortcoming of this mode of braking is: once this disk brake lost efficacy or broke down, load will be caused to fall or cisco unity malfunction, and safety and reliability can not be fully protected.
Summary of the invention
The purpose of this utility model is the shortcoming overcoming existing braking motor, proposes a kind of electric block synchronous machine realizing two braking, fully ensures the fail safe that motor runs and reliability.
The utility model is achieved in that a kind of electric block synchronous machine realizing two braking, comprise motor stator, rotor, motor shaft and electric machine casing, described electric machine casing comprises motor housing and electric motor end cap, described motor shaft is through rotor, it is characterized in that: the rotor two ends on described motor shaft are respectively equipped with the first Compress Spring and the second Compress Spring, two Compress Springs are free to slide on rotor, motor shaft outside the first described Compress Spring and the second Compress Spring is respectively equipped with again the first brake silpper, second brake silpper, the section that two brake silppers match with motor shaft is provided with spline and the keyway of transmitting torque, two brake silppers are free to slide on motor shaft, the first described brake silpper, second brake silpper is corresponding between electric machine casing is provided with the first brake strip and the second brake strip, two brake strips are pasted on electric machine casing respectively, when described motor obtains electric, stator winding due to motor produces the effect of electromagnetic force, overcome the elastic force impact that two Compress Springs produce, two brake silppers being respectively in rotor both sides are slided toward rotor direction, makes two between brake silpper and electric machine casing, to produce gap, during motor dead electricity, the axial gapless of rotor, first Compress Spring and second Compress Spring at motor shaft two ends contact the first brake silpper and the second brake silpper respectively, two brake silppers contact with electric machine casing with the second brake strip respectively by the first brake strip again, realize two brakings of electromagnetic force and frictional force.When described motor obtains electric, two brake silppers being positioned at motor shaft both sides are contrary to the absorption affinity equal and opposite in direction direction in rotor direction, and two rolling bearings being positioned at motor shaft two ends affect without axial force, and motor operates steadily, and can not produce and rock.
The beneficial effects of the utility model are: the braking system that the utility model motor acts on owing to being provided with two covers simultaneously, the pressure of motor two Compress Springs when braking and operate is in the state of cancelling out each other forever, make the bearing damage of rocking and producing due to the effect of axial force of electric chain hoist be in minimum state, improve fail safe and reliability that electric chain hoist uses.The utility model motor realizes braking under the situation of motor stator dead electricity, and two cover braking system are braked simultaneously, therefore the utility model motor meet completely electric block out of service time must be in the safety requirements of on-position, and achieve unprecedented synchronous pair of braking function, make the fail safe of electric block and reliability obtain breakthrough lifting.
Accompanying drawing explanation
Fig. 1 is that the electric block synchronous machine of the two braking of the utility model realization obtains electricity condition fundamental diagram.
Fig. 2 is the electric block synchronous machine power failure state fundamental diagram that the utility model realizes two braking.
In figure: 1, the first brake strip; 2, the first brake silpper; 3, the first Compress Spring; 4, rotor; 5, motor stator; 6, motor housing; 7, the second Compress Spring; 8, the second brake silpper; 9, the second brake strip; 10, electric motor end cap; 11, the first rolling bearing; 12, the second rolling bearing.
Embodiment
With reference to the accompanying drawings 1 and accompanying drawing 2, a kind of electric block synchronous machine realizing two braking of the utility model, comprise motor stator 5, rotor 4, motor shaft and electric machine casing, electric machine casing comprises motor housing 6 and electric motor end cap 10, and motor shaft is through whole rotor 4.The motor shaft at the two ends of rotor 4 is respectively equipped with the first Compress Spring 3 and the second Compress Spring 7, two Compress Springs are free to slide on rotor 4.Motor shaft outside first Compress Spring 3 and the second Compress Spring 7 is respectively equipped with again the first brake silpper 2, second brake silpper 8, the section that two brake silppers match with motor shaft is provided with spline and the keyway of transmitting torque, and two brake silppers are free to slide on motor shaft.First brake silpper 2, second brake silpper 8 is corresponding between electric machine casing to be provided with on motor housing 6 and electric motor end cap 10 that the first brake strip 1 and the second brake strip 9, two brake strips are pasted on electric machine casing respectively.
With reference to the accompanying drawings 1, motor is normal operation when being energized: when being energized at motor stator 5, the electronics winding of motor produces electromagnetic force, the left and right sides of rotor 4 can produce the magnetic attraction force of attraction first brake silpper 2 and the second brake silpper 8 under the effect of motor stator 5, this magnetic attraction force overcomes first Compress Spring 3 at two ends and the elastic force of the second Compress Spring 7 and the first brake silpper 2 and the second brake silpper 8 is adsorbed (by arrow direction in figure) in the left and right sides of rotor 4 simultaneously, now the first brake strip 1 and the second brake strip 9 and clamp their the first brake silpper 2 and motor housing 6 respectively and create gap between the second brake silpper 8 and electric motor end cap 10, now motor shaft just energy normal rotation, hoisting and declining of electric block can be realized.Now because two brake silppers are inhaled on rotor and amount of force equal direction contrary simultaneously, therefore the bearing at two ends is not by axial force, also can not cause rocking of motor.
With reference to the accompanying drawings 2, the on-position of motor in dead electricity situation: when motor stator 5 dead electricity, the electromagnetic force that the electronics winding of motor produces disappears, namely the magnetic attraction force of rotor 4 left and right sides disappears, now the first brake silpper 2 and the second brake silpper 8 are pushed to (in by figure arrow direction) motor housing 6 and electric motor end cap 10 respectively simultaneously respectively and are clamped the first middle brake strip 1 and the second brake strip 9 respectively by first Compress Spring 3 at two ends and the second Compress Spring 7 under the effect of elastic force, and create the frictional force that rotor 4 is stopped operating simultaneously, now motor shaft can not rotate, namely the electromagnetic force of electric block and two brakings of frictional force are achieved.Now because two brake silppers press to motor housing and electric motor end cap respectively, and amount of force equal direction is contrary, therefore the bearing at two ends is not also by axial force, and can not cause rocking of motor, motor operates steadily, and achieves safer more reliable function.
Claims (1)
1. one kind realizes the electric block synchronous machine of two braking, comprise motor stator, rotor, motor shaft and electric machine casing, described electric machine casing comprises motor housing and electric motor end cap, described motor shaft is through rotor, it is characterized in that: the rotor two ends on described motor shaft are respectively equipped with the first Compress Spring and the second Compress Spring, two Compress Springs are free to slide on rotor, motor shaft outside the first described Compress Spring and the second Compress Spring is respectively equipped with again the first brake silpper, second brake silpper, the section that two brake silppers match with motor shaft is provided with spline and the keyway of transmitting torque, two brake silppers are free to slide on motor shaft, the first described brake silpper, second brake silpper is corresponding between electric machine casing is provided with the first brake strip and the second brake strip, two brake strips are pasted on electric machine casing respectively, when described motor obtains electric, stator winding due to motor produces the effect of electromagnetic force, overcome the elastic force impact that two Compress Springs produce, two brake silppers being respectively in rotor both sides are slided toward rotor direction, makes two between brake silpper and electric machine casing, to produce gap, during motor dead electricity, the axial gapless of rotor, first Compress Spring and second Compress Spring at motor shaft two ends contact the first brake silpper and the second brake silpper respectively, two brake silppers contact with electric machine casing with the second brake strip respectively by the first brake strip again, realize two brakings of electromagnetic force and frictional force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420628135.8U CN204118993U (en) | 2014-10-28 | 2014-10-28 | Realize the electric block synchronous machine of two braking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420628135.8U CN204118993U (en) | 2014-10-28 | 2014-10-28 | Realize the electric block synchronous machine of two braking |
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| Publication Number | Publication Date |
|---|---|
| CN204118993U true CN204118993U (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420628135.8U Active CN204118993U (en) | 2014-10-28 | 2014-10-28 | Realize the electric block synchronous machine of two braking |
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| CN (1) | CN204118993U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300756A (en) * | 2014-10-28 | 2015-01-21 | 上海德益轻型起重机有限公司 | Electric hoist synchronous motor with double-braking function |
-
2014
- 2014-10-28 CN CN201420628135.8U patent/CN204118993U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300756A (en) * | 2014-10-28 | 2015-01-21 | 上海德益轻型起重机有限公司 | Electric hoist synchronous motor with double-braking function |
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