CN201674448U - Dynamic brake for mechanical speed-regulating winch - Google Patents
Dynamic brake for mechanical speed-regulating winch Download PDFInfo
- Publication number
- CN201674448U CN201674448U CN2010201938702U CN201020193870U CN201674448U CN 201674448 U CN201674448 U CN 201674448U CN 2010201938702 U CN2010201938702 U CN 2010201938702U CN 201020193870 U CN201020193870 U CN 201020193870U CN 201674448 U CN201674448 U CN 201674448U
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- CN
- China
- Prior art keywords
- winch
- rectifier
- mechanical speed
- power
- absorption unit
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a dynamic brake for a mechanical speed-regulating winch, which comprises a DC rectifier connected with a three-phase power supply. An output terminal of the DC rectifier is connected with a two-phase input terminal of the winch motor through a linked switch. The device can reduce the operating frequency of the mechanical brake and put down the winch tenderly and steadily. Therefore, the wear is reduced and the cost is saved.
Description
Technical field
The utility model relates to a kind of power-absorption unit, specifically relates to a kind of power-absorption unit that is applicable to the mechanical speed governors winch.
Background technology
Known mechanical speed governors winch, when mine hoist is transferred, its speed of service is often controlled by brake, when particularly transferring personnel and material, in order to make the mild and long-time apply the brakes control rate of having to of lowering velocity, quick abrasion can appear in brake block and braked wheel, phenomenons such as temperature rise braking ability variation bring accident potential for the safety in production of mine.
Summary of the invention
In order to overcome above-mentioned shortcoming, the utility model aims to provide a kind of energy and reduces the brake frequency of utilization, and can make the power-absorption unit of the soft mechanical speed governors stably of winch lowering velocity winch.
The technical solution adopted in the utility model is: the power-absorption unit of mechanical speed governors winch, comprise the dc rectifier that connects three phase mains, and the output of dc rectifier connects the wherein two-phase input of winch motor through linked switch.
Above-mentioned linked switch and winch motor run switch relevant action, when the run switch of winch motor was in the forward and backward running status, linked switch can not be communicated with the output of dc rectifier the input of winch motor; When the run switch of winch motor was in the disengaging off-position, linked switch just can be closed, the output of dc rectifier is communicated with the input of winch motor.
After the winch constant speed runs to deceleration point, can cut off the winch motor three phase mains, after extinguishing arc time-delay, closed linked switch is communicated with the output of dc rectifier the input of winch motor, winch motor is admitted to direct voltage, winch motor internal stator coil produces stationary magnetic field, the rotor in the motion is produced braking force, thereby slow down the winch rotating speed, reach the same effect of mechanical brake braking, and mechanical wear does not take place.
The output end voltage of above-mentioned dc rectifier is adjustable.Regulate the output voltage of dc rectifier, promptly change winch motor braking force size in braking procedure, can allow the winch speed of service adjustable, and softer steady.
The beneficial effect that the utility model produces has: lowering velocity was soft steadily when 1, winch was braked, and speed is regulated arbitrarily, dependable performance.2, use frequency in the time of reducing brake, reduce wear, save production cost.3, easy to operate, volume is little, and is easy for installation, conserve space.
Description of drawings
Fig. 1 is a circuit structure diagram of the present utility model.
Embodiment
Below, the utility model is described in further detail in conjunction with the accompanying drawings.
Fig. 1 shows a kind of power-absorption unit of mechanical speed governors winch, comprises the dc rectifier 2 that connects three phase mains 1, and the output 21 of dc rectifier 2 connects the wherein two-phase input 5 of winch motor 6 through linked switch 3.
Linked switch 3 and winch motor run switch 4 relevant actions make three-phase alternating voltage and direct voltage can not import winch motor 6 inputs 5 simultaneously, prevent to produce contingency.
Claims (3)
1. the power-absorption unit of mechanical speed governors winch is characterized in that comprising the dc rectifier that connects three phase mains, and the output of dc rectifier connects the wherein two-phase input of winch motor through linked switch.
2. the power-absorption unit of mechanical speed governors winch as claimed in claim 1 is characterized in that described linked switch and winch motor run switch relevant action.
3. the power-absorption unit of mechanical speed governors winch as claimed in claim 1 is characterized in that described dc rectifier output end voltage is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201938702U CN201674448U (en) | 2010-05-12 | 2010-05-12 | Dynamic brake for mechanical speed-regulating winch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201938702U CN201674448U (en) | 2010-05-12 | 2010-05-12 | Dynamic brake for mechanical speed-regulating winch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201674448U true CN201674448U (en) | 2010-12-15 |
Family
ID=43331855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201938702U Expired - Fee Related CN201674448U (en) | 2010-05-12 | 2010-05-12 | Dynamic brake for mechanical speed-regulating winch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201674448U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111371347A (en) * | 2019-12-19 | 2020-07-03 | 丹东山川电机有限公司 | Low-noise brake wiring method for double-speed motor |
-
2010
- 2010-05-12 CN CN2010201938702U patent/CN201674448U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111371347A (en) * | 2019-12-19 | 2020-07-03 | 丹东山川电机有限公司 | Low-noise brake wiring method for double-speed motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20150512 |
|
| EXPY | Termination of patent right or utility model |