CN2891476Y - Three-phase electromagnetic braking motor - Google Patents
Three-phase electromagnetic braking motor Download PDFInfo
- Publication number
- CN2891476Y CN2891476Y CN 200620000915 CN200620000915U CN2891476Y CN 2891476 Y CN2891476 Y CN 2891476Y CN 200620000915 CN200620000915 CN 200620000915 CN 200620000915 U CN200620000915 U CN 200620000915U CN 2891476 Y CN2891476 Y CN 2891476Y
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- phase
- motor
- full wave
- threephase motor
- electromagnet
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Abstract
The utility model relates to a three-phase electromagnetic brake motor with a star winding three-phase motor, wherein the common port of the three-phase motor star winding breaks are respectively connected in series with three alternating current input end of a three-phase full wave commute module, two direct current output ends of the three-phase full wave commute module are connected with two ends of a coil of an electromagnet. Thereby the utility model has the advantages of big brake torque, quick start and stop, accurate location and convenient regulation.
Description
Technical field
The utility model relates to a kind of three-phase electromagnetic brake motor, relates to a kind of three-phase electromagnetic brake motor that is applicable to three-phase star connection motor particularly.
Background technology
At present, in automatic control and the electromagnetic braking threephase motor that requires to stop fast and accurately use on the various mechanical industry of location, known have multiple electromagnetic braking threephase asynchronouses such as YEJ, QAEJ, MQAEJ series.These electromagnetic braking threephase motors, the power supply of its electromagnet all is separately by the direct current of civil power by rectification, (F is an electromagnetic attraction according to F=WI, W is a coil turn, I is a direct current), because electric current is unsuitable excessive, the general this magnet spool number of turn is more, the electromagnet inductance is bigger, in motor work or when stopping, though the winding of motor and magnet spool two parts power simultaneously and cut off the power supply because the big effect of inductance, electromagnet action is lagged behind and cause the starting of electromagnetic braking threephase motor and dwell time longer, more obvious on heavy-duty motor especially.
Summary of the invention
The purpose of this utility model is in order to solve the defective that existing three-phase electromagnetic brake motor exists, and provide a kind of three-phase electromagnetic brake motor, mainly be the three phase full wave rectification module, electromagnet coil directly is serially connected in the threephase motor stator winding, directly utilize threephase motor starting current big (generally being 4～7 times of rated current), and the magnet spool number of turn is few, inductance is little, the electromagnet electromagnetic force is big, so action is fast, it is fast to enter stable state after the threephase motor starting, during outage, again because magnet spool is serially connected in the threephase motor stator winding loop, the winding and the magnet spool of threephase motor cut off the power supply simultaneously, so threephase motor stops that more speed is fast.
The technical solution of the utility model: a kind of three-phase electromagnetic brake motor, threephase motor with a star winding, after the common port of this threephase motor star winding disconnects, and directly be serially connected in three ac input ends of a three phase full wave rectification module respectively, and two dc output ends of this three phase full wave rectification module connect magnet spool two ends.
Described three phase full wave rectification module is made of in proper order rectifier cell D1, D2, D3, D4, D5 and D6.
The utility model braking moment is big, starts, stops the fast and accurate positioning of speed, and is simultaneously easy to adjust.
Description of drawings
Fig. 1 is the utility model exemplary embodiments circuit theory diagrams.
Fig. 2 is the structure cutaway view of the utility model exemplary embodiments.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
The circuit of the three-phase electromagnetic brake motor of present embodiment, as shown in Figure 1, the common port (neutral end) of threephase motor star winding is broken as three end points O1, O2, O3, and three ac input end E1 that connect three phase full wave rectification module 2 respectively, E2, E3, two dc output end F1 of three phase full wave rectification module 2, F2 connects the coil 31 two ends G1 of an electromagnet 3, G2, when threephase motor 1 energising, A cross streams electricity is through a phase winding of threephase motor 1, rectifier cell D1 by three phase full wave rectification module 2, become direct current, flow through the coil 31 of electromagnet 3, again by the rectifier cell D5 in the three phase full wave rectification module 2, D6, the b of threephase motor 1 flows through respectively, the c winding is got back to power supply B phase, the C phase; B cross streams electricity is through the b phase winding of threephase motor 1 again, rectifier cell D2 by three phase full wave rectification module 2, become direct current, flow through the coil 31 of electromagnet 3, again by rectifier cell D6, D4 in the three phase full wave rectification module 2, flow through respectively c, a winding of threephase motor 1 are got back to power supply C phase, A phase; Equally, C cross streams electricity is through the c phase winding of threephase motor 1, rectifier cell D3 by three phase full wave rectification module 2 becomes direct current, flow through the coil of electromagnet 3, again by rectifier cell D5, D4 in the three phase full wave rectification module 2, flow through respectively b, a winding of threephase motor 1 are got back to power supply B phase, A phase; By analysis of experiments and test, during threephase motor 1 energising of present embodiment, three phase winding a of this threephase motor 1, the electric current that b, c flow through are the three-phase sine-wave alternating currents.The electric current that flows through the coil 31 of each rectifier cell of three phase full wave rectification module 2 and electromagnet 3 is a direct current.When present embodiment utilizes threephase motor 1 energising starting, produce the D.C. high-current that big alternating current goes out through 2 rectifications of three phase full wave rectification module, coil 31 by electromagnet 3, make electromagnet 3 produce huge electromagnetic attraction, remove the braking force of electromagnet 3 fast, make threephase motor 1 Fast starting.Coil 31 numbers of turn of the electromagnet 3 in the present embodiment are few, and inductance is little, and the electrical time constant of electromagnet is little, during power failure, and motor energy fast braking, in like manner, motor also can Fast starting during energising.
The structure of the utility model exemplary embodiments, as shown in Figure 2, three phase full wave rectification module 2 by screw in the terminal box of threephase motor 1, electromagnet 3 is by hexagonal guide pillar 15, screw 16 is fixed on the outer face of threephase motor 1 rear end cap, rotate hexagonal guide pillar 15, screw 16 scalable threephase motors 1 rear end cap, gap between friction pulley 4 and the brake disc 5 (gap is generally in 0.8 millimeter), be fixed with the Brake Block 19 of cylindrical spline structure at the rear axle external part of threephase motor 1, friction pulley 4 (friction plate is equipped with on the two sides), be socketed on the Brake Block 18 with splined hole, brake disc 5 is fixed on the wheel cover 8 of yoke 7 by adjusting rod 10 usefulness screws 9, the conversion nut 11 that is fixed on the adjusting rod 10 with screw 12 connects again, handwheel 13 is fixed on the conversion nut 11 by hex screw 14, compression spring 6 is contained in the hole of yoke 7, it simultaneously heads on brake disc 5, in addition, cover cap 17 is by on the fixing threephase motor outer end cap of screw 18.
During the energising of the utility model three-phase electromagnetic brake motor, electric current is by threephase motor 1 winding, again by three phase full wave rectification module 2, when passing through the coil 31 of electromagnet 3 again, electromagnet 3 adhesive brake discs 5 move to right, compression spring 6 is compressed, simultaneously, two sides friction plate on the friction pulley 4 and threephase motor 1 rear end cap lateral surface, brake disc 5 disengages, threephase motor 1 starts to work rapidly, friction pulley 4 floats in the middle of threephase motor 1 rear end cap and brake disc 5, and rotate with threephase motor 1, during outage, threephase motor 1, electromagnet 3 is dead electricity simultaneously, compression spring 6 pushes up brake disc 5 to the left side, make the rear end cap outside of the two sides friction plate and the threephase motor 1 of friction pulley 4, brake disc 5 closely contacts, and produces big drag friction power, friction pulley 4 is delivered to frictional force on the Brake Block 19 that is fixed on 1 of the threephase motor, and threephase motor 1 is stopped rapidly.
The mechanism that uses present embodiment three-phase electromagnetic brake motor and (or) on the equipment, when the manual adjustments of outage need be set, rotatable handwheel 13, this rotates handwheel 13 by conversion nut 11, wheel cover 8 drives adjusting rod 10 and moves to right, adjusting rod 10 drives brake disc 5 and moves to right, and at this moment the two sides friction plate on the friction pulley 4 and threephase motor 1 rear end cap lateral surface, brake disc 5 disengage, and can finish the manual adjustments of threephase motor 1 and rotate.
Claims (2)
1, a kind of three-phase electromagnetic brake motor, threephase motor with a star winding, it is characterized in that, after the common port of this threephase motor star winding disconnects, and directly be serially connected in three ac input ends of a three phase full wave rectification module respectively, and two dc output ends of this three phase full wave rectification module connect magnet spool two ends.
2, the three-phase electromagnetic brake motor of output according to claim 1 is characterized in that, described three phase full wave rectification module is made of in proper order rectifier cell D1, D2, D3, D4, D5 and D6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620000915 CN2891476Y (en) | 2006-01-13 | 2006-01-13 | Three-phase electromagnetic braking motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620000915 CN2891476Y (en) | 2006-01-13 | 2006-01-13 | Three-phase electromagnetic braking motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2891476Y true CN2891476Y (en) | 2007-04-18 |
Family
ID=38022137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620000915 Expired - Fee Related CN2891476Y (en) | 2006-01-13 | 2006-01-13 | Three-phase electromagnetic braking motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2891476Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299372B (en) * | 2008-03-11 | 2010-07-28 | 张家政 | Electromagnet three-phase high-efficient energy-saving controller |
| CN113904496A (en) * | 2021-10-26 | 2022-01-07 | 宁波市海誉机电科技有限公司 | Non-excitation brake of flexible tubular motor and three-phase voltage reduction circuit thereof |
-
2006
- 2006-01-13 CN CN 200620000915 patent/CN2891476Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299372B (en) * | 2008-03-11 | 2010-07-28 | 张家政 | Electromagnet three-phase high-efficient energy-saving controller |
| CN113904496A (en) * | 2021-10-26 | 2022-01-07 | 宁波市海誉机电科技有限公司 | Non-excitation brake of flexible tubular motor and three-phase voltage reduction circuit thereof |
| CN113904496B (en) * | 2021-10-26 | 2024-03-01 | 宁波市海誉机电科技有限公司 | Non-excitation brake of flexible tubular motor and three-phase voltage reducing circuit thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Chongqing Sichuan Instruments Suda Mechanical And Electrical Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070418 Termination date: 20140113 |