CN202799260U - Illumination power supply line of heading machine - Google Patents
Illumination power supply line of heading machine Download PDFInfo
- Publication number
- CN202799260U CN202799260U CN 201220494137 CN201220494137U CN202799260U CN 202799260 U CN202799260 U CN 202799260U CN 201220494137 CN201220494137 CN 201220494137 CN 201220494137 U CN201220494137 U CN 201220494137U CN 202799260 U CN202799260 U CN 202799260U
- Authority
- CN
- China
- Prior art keywords
- power supply
- supply line
- illumination
- heading machine
- development machine
- 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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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
An illumination power supply line of a heading machine comprises an alternating current (AC) 220V alternating current relay and a switch power supply, an AC127V intrinsic safety power supply, an AC36V power supply and an AC24V illumination power supply, wherein an independent secondary transformer is adopted for the illumination power supply. The influence on the whole power supply line caused by illumination circuit shorting is reduced.
Description
Technical field
The utility model relates to the mains lighting supply of a kind of development machine, particularly development machine.
Background technology
Along with the fast development of coal mine machinery, its advantage such as safe and efficient, simple to operate, easy to maintenance of development machine is extensively used in the colliery.Yet reflect in long-term normal use procedure and have some imperfections or the improved place of needs in the development machine illuminator: illuminating lamp bulb in the development machine operation process burns frequently before and after the development machine.The secondary side power supply of existing development machine transformer comprises AC220V AC relay and Switching Power Supply, AC127V intrinsic safety electric source, AC36V power supply and four parts of AC24V mains lighting supply for whole development machine control side provides power supply.When any place short circuit of illuminator wherein all can cause the fault of development machine electric part.When short circuit current is larger even can directly burn whole transformer or impact PLC, switch receiver sheet and baffle.It is not only that replacing time length makes a big impact to driving production that illuminating lamp burns, and main is that illuminating lamp extinguishes suddenly the personal safety that can directly threaten the produced on-site operating personnel.Because transformer and various Switching Power Supply plate are expensive, change and keep in repair and cause very large economic loss.
Summary of the invention
The technical problems to be solved in the utility model is: a kind of development machine lighting power supply line is provided, reduces because of the impact of lighting circuit short circuit on whole supply line.
The technical solution adopted in the utility model is: a kind of development machine lighting power supply line, comprise AC220V AC relay and Switching Power Supply, AC127V intrinsic safety electric source, AC36V power supply and four parts of AC24V mains lighting supply, wherein mains lighting supply is used independently secondary transformer.
The utility model is set up separately the secondary transformer for lighting device, has reduced because of the impact of lighting circuit short circuit on whole supply line.
Description of drawings
Fig. 1 is the figure of supply line after improving.
Embodiment
Part is set up separately the secondary transformer 1 that supplies lighting device in development machine supply line, separates from original mains lighting supply.Set up separately 660V and become 24V illumination secondary transformer 1, mains lighting supply is separated from former whole transformer, when occurring that illuminator is electric to break down, what at first impact is thereby that the secondary transformer 1 of setting up has reduced the accident coverage, greatly reduces the possibility that can directly impact or damage whole electric control system and various electric components.So effectively avoid larger electric fault and reduced the input of equipment part.
Claims (1)
1. a development machine lighting power supply line comprises AC220V AC relay and Switching Power Supply, AC127V intrinsic safety electric source, AC36V power supply and four parts of AC24V mains lighting supply, and it is characterized in that: mains lighting supply is used independently secondary transformer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220494137 CN202799260U (en) | 2012-09-26 | 2012-09-26 | Illumination power supply line of heading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220494137 CN202799260U (en) | 2012-09-26 | 2012-09-26 | Illumination power supply line of heading machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202799260U true CN202799260U (en) | 2013-03-13 |
Family
ID=47826425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220494137 Expired - Fee Related CN202799260U (en) | 2012-09-26 | 2012-09-26 | Illumination power supply line of heading machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202799260U (en) |
-
2012
- 2012-09-26 CN CN 201220494137 patent/CN202799260U/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: 20130313 Termination date: 20150926 |
|
| EXPY | Termination of patent right or utility model |