CN203457084U - Power brake device of mine hoister - Google Patents
Power brake device of mine hoister Download PDFInfo
- Publication number
- CN203457084U CN203457084U CN201320505995.8U CN201320505995U CN203457084U CN 203457084 U CN203457084 U CN 203457084U CN 201320505995 U CN201320505995 U CN 201320505995U CN 203457084 U CN203457084 U CN 203457084U
- Authority
- CN
- China
- Prior art keywords
- motor
- brake device
- power
- generator
- power brake
- 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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- Stopping Of Electric Motors (AREA)
Abstract
The utility model discloses a power brake device of a mine hoister. The power brake device includes a three-phase power source, a contactor, an active motor, a hoisting motor, and a reversing contactor. The power brake device is characterized in that: the active motor is connected with a direct current power generator through a shaft coupling, the direct current power generator is connected with the three-phase power source through an excitation system, and the direct current motor is also connected with any two terminals of the hoisting motor through a change over switch. The power brake device has characteristics of being good in brake effect, being energy-saving, being low in cost, with which a heavy object can be put down stably.
Description
Technical field
The utility model belongs to mine hoist technical field, especially relates to a kind of power-absorption unit of mine hoist.
Background technology
At present, existing mine hoist some adopt the mode of AC motor rotor crosstalk resistance to carry out speed governing, and mine hoist produces braking by brake shoe and roll friction; When transferring weight, in order to make, lowering velocity is slack-off will be braked, thereby makes brake block and braked wheel Fast Wearing, temperature rising braking ability variation, and can not well control the speed of motor, be prone to accidents, while device damage speed, use cost is higher.
Summary of the invention
The purpose of this utility model be to improve the deficiency of prior art and provide a kind of realized weight steadily transfer, the power-absorption unit of good braking effect, the saving energy, mine hoist that use cost is low.
The purpose of this utility model is to realize like this, a kind of power-absorption unit of mine hoist, by three phase mains, contactor, active motor, lifting motor and conversing contactor, formed, be characterized in that initiatively motor is connected with DC generator by shaft coupling, DC generator is connected with three phase mains by excitation system, and DC generator is also connected with the two ends of appointing of lifting motor by change over switch.
Compared with the prior art the utility model has following distinguishing feature and good effect: the utility model is when transferring weight, rotary sampling switch disconnects elevator motor main circuit, initiatively motor main circuit power supply is connected simultaneously, because active motor connects through shaft coupling with DC generator, in the situation that under the drive of active motor and the DC generator system that puts into excitation, DC generator will be in generating state, any two inputs of the direct current input elevator motor that DC generator produces, play braking action, also can coordinate master controller to regulate the speed of motor simultaneously.
The utility model has been realized elevator and has steadily been transferred the object of weight, not only can regulate lowering velocity, also reduces brake shoe and roll friction, has effectively reduced the wearing and tearing of brake shoe, has guaranteed the safety of mine hoisting.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is a kind of structural representation of the present utility model.
Embodiment
Embodiment, a kind of power-absorption unit of mine hoist, by contactor 2, to connect initiatively motor 3 by three phase mains 1, three phase mains 1 connects lifting motor 8 by conversing contactor 9, initiatively motor 3 is connected with DC generator 5 by shaft coupling 4, DC generator 5 is connected with three phase mains 1 by excitation system 6, and DC generator 5 is also connected with the two ends of appointing of lifting motor 8 by change over switch 7, and this forms a kind of structure of the present utility model.
Claims (1)
1. the power-absorption unit of a mine hoist, by three phase mains (1), contactor (2), active motor (3), lifting motor (8) and conversing contactor (9), formed, it is characterized in that, initiatively motor (3) is connected with DC generator (5) by shaft coupling (4), DC generator (5) is connected with three phase mains (1) by excitation system (6), and DC generator (5) is also connected with the two ends of appointing of lifting motor (8) by change over switch (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320505995.8U CN203457084U (en) | 2013-08-20 | 2013-08-20 | Power brake device of mine hoister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320505995.8U CN203457084U (en) | 2013-08-20 | 2013-08-20 | Power brake device of mine hoister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203457084U true CN203457084U (en) | 2014-02-26 |
Family
ID=50136928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320505995.8U Expired - Fee Related CN203457084U (en) | 2013-08-20 | 2013-08-20 | Power brake device of mine hoister |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203457084U (en) |
-
2013
- 2013-08-20 CN CN201320505995.8U patent/CN203457084U/en not_active Expired - Fee Related
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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: 20140226 Termination date: 20140820 |
|
| EXPY | Termination of patent right or utility model |