CN2706957Y - Electromagnetic block type brake rectifying control power supply - Google Patents
Electromagnetic block type brake rectifying control power supply Download PDFInfo
- Publication number
- CN2706957Y CN2706957Y CN 200420030996 CN200420030996U CN2706957Y CN 2706957 Y CN2706957 Y CN 2706957Y CN 200420030996 CN200420030996 CN 200420030996 CN 200420030996 U CN200420030996 U CN 200420030996U CN 2706957 Y CN2706957 Y CN 2706957Y
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- brake
- power supply
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Abstract
The utility model relates to an electromagnetic block type brake rectifying control power source, comprising a three-phase half-wave rectifying circuit which is composed of three rectifying diodes D1, D2, D3. A power source of DC output is composed of the output end of the three-phase half-wave rectifying circuit and a zero line of power source N. The electromagnetic coil L of a brake is connected in the return circuit of DC output in series. The utility model is characterized in that any phase of a three-phase alternating-current power source is controlled for conducting and cutting by a normally closed position switch K which is driven by the brake and mounted on the brake. The utility model can make the electromagnet of the brake realize the starting of strong magnet and the maintaining of weak magnet. The electromagnetic coil realizes the low current and the low heating. Thus, the purposes of high movement sensibility of the electromagnet, long service life of the electromagnetic coil and power saving are achieved. The utility model can be mounted on the prior DC electromagnetic block-type brake by using the prior connecting box position and enlarging the connecting box slightly. The prior DC brake is changed into the three-phase alternating-current brake, with very convenient installation and use.
Description
(1) technical field
The utility model relates to a kind of brake power supply, the rectification control power supply that especially a kind of direct solenoid block brake is used.
(2) background technology
The electromagnetism block brake is widely used in the deceleration and the stopping brake of various mechanisms in various liftings, belt transportation, harbour handling, metallurgy and the building machinery.Existing electromagnetism block brake is DC power supply, progress along with electronic technology, in industrial production, handling equipment adopts ac power equipment in a large number, and motor mostly adopts frequency control, power supply adopts standard three-phase 380V ac power supply system, for this reason, the direct solenoid block brake need be mixed rectification control power supply just can become interchange 380V brake, alternating electromagnetic block brake after the existing repacking generally all is could be as the power supply of direct solenoid block brake, because bridge rectifier can produce the afterflow effect behind power cut-off after installing the 380V AC power additional a bridge rectifier.Thereby can cause brake electromagnet electromagnet inertia to increase, the sensitivity of electromagnetism block brake is greatly reduced.In addition, brake start and adhesive after in the energising work solenoid remain electric current greatly.
(3) summary of the invention
In order to solve the technical problem that above-mentioned prior art exists, the utility model provides a kind of electromagnetism block brake rectification control power supply.This rectifier power source can not only realize that strong magnetic force starts, and improves the initial the suction-combining force and the reliability of brake electromagnet.Can realize also that simultaneously the little electric current of weak magnetic force keeps, and makes solenoid keep low heating, saves energy.
The technical scheme that adopts is:
A kind of electromagnetism block brake rectification control power supply, comprise the three-plase half wave rectifier circuit of forming by three rectifier diodes, the output of three-plase half wave rectifier circuit and zero-power line constitute dc output power, the solenoid of brake is serially connected in this direct current output loop, and its technical essential is that any one in the three-phase alternating-current supply is installed on the brake by the normally closed travel switch control break-make of brake from drive by one.
Any phase power supply in the above-mentioned three-phase alternating-current supply also can be by the silicon thyristor switch control break-make of one stroke switch control, and the silicon thyristor switch is any one in three rectifier diodes.
Operation principle
After connecting three-phase alternating current, the brake solenoid gets electric adhesive, make the strong magnetic starting of brake electromagnet, quick acting, and touch the travel switch action, in the three phase mains any one disconnected mutually, the output current of half-wave rectifier is reduced, and the electric current of solenoid also reduces, and the magnetic force of electromagnet is weakened, thereby reach strong magnetic starting, the purpose that weak magnetic keeps.During the three-phase alternating-current supply outage, the solenoid of brake cuts off the power supply immediately, makes the electromagnet quick acting of brake.Make travel switch be returned to normally off simultaneously.
The utility model is owing to adopt halfwave rectifier, and when power cut-off, can not produce the afterflow effect, reduced electromagnet inertia, improved the sensitivity that electromagnet moves.In addition, because one in the three-phase alternating-current supply of the present utility model is by the travel switch control break-make that is installed on the brake, thereby the strong magnetic starting of brake high-speed double electromagnet, weak magnetic are kept, make the little electric current of solenoid, low heating, and then reach electromagnet action sensitivity height, the purpose of solenoid long service life, economize on electricity.The utility model can be installed on the existing direct solenoid block brake, utilizes former terminal box position, terminal box is slightly strengthened a bit get final product, and makes original DC brake become the three-phase alternating current brake, and it is very convenient to install and use.
(4) description of drawings
Fig. 1 is the circuit theory diagrams of first kind of embodiment of the utility model.
Fig. 2 is the circuit theory diagrams of second kind of embodiment of the utility model.
(5) embodiment
Embodiment one
See also Fig. 1, a kind of electromagnetism block brake rectification control power supply comprises three rectifier diode D
1, D
2, D
3Three rectifier diode D
1, D
2, D
3Negative or positive electrode one end link together, and draw an output, this output meets the zero line N of power supply through the solenoid L of brake.Three rectifier diode D
1, D
2, D
3The other end connect the input of three phase mains respectively, wherein A is connected in series a normally closed travel switch K mutually, the break-make that makes A phase power supply is by travel switch K control, travel switch K is installed between the swing arm of brake.
Embodiment two
See also Fig. 2, embodiment two and embodiment one are basic identical, and its difference is to control the control utmost point of a silicon thyristor switch T with travel switch K.The end of travel switch K connects the A phase through resistance R, the control utmost point of its another termination silicon thyristor switch T.Silicon thyristor switch T directly controls the A phase of three phase mains, uses as rectifier diode again simultaneously.When phase current is big, can adopt present embodiment two.
Claims (2)
1, a kind of electromagnetism block brake rectification control power supply comprises by three rectifier diode D
1, D
2, D
3The three-plase half wave rectifier circuit of forming, the output of three-plase half wave rectifier circuit and zero-power line N constitute dc output power, the solenoid L of brake is serially connected in this direct current output loop, it is characterized in that: any one in the three-phase alternating-current supply is installed on the brake by one and controls break-make by brake from the normally closed travel switch K that drives.
2, a kind of electromagnetism block brake rectification control power supply according to claim 1 is characterized in that any one in the described three-phase alternating-current supply mutually also can be by the silicon thyristor switch T control break-make of one stroke K switch control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420030996 CN2706957Y (en) | 2004-03-31 | 2004-03-31 | Electromagnetic block type brake rectifying control power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420030996 CN2706957Y (en) | 2004-03-31 | 2004-03-31 | Electromagnetic block type brake rectifying control power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2706957Y true CN2706957Y (en) | 2005-06-29 |
Family
ID=34849839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420030996 Expired - Fee Related CN2706957Y (en) | 2004-03-31 | 2004-03-31 | Electromagnetic block type brake rectifying control power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2706957Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109699096A (en) * | 2017-10-24 | 2019-04-30 | 赵玉奎 | A kind of novel I H electromagnetic heating circuit |
-
2004
- 2004-03-31 CN CN 200420030996 patent/CN2706957Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109699096A (en) * | 2017-10-24 | 2019-04-30 | 赵玉奎 | A kind of novel I H electromagnetic heating circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |