CN203820830U - Brake safety device of converter ladle top blowing rod - Google Patents
Brake safety device of converter ladle top blowing rod Download PDFInfo
- Publication number
- CN203820830U CN203820830U CN201420197616.8U CN201420197616U CN203820830U CN 203820830 U CN203820830 U CN 203820830U CN 201420197616 U CN201420197616 U CN 201420197616U CN 203820830 U CN203820830 U CN 203820830U
- Authority
- CN
- China
- Prior art keywords
- contactor
- ladle top
- converter ladle
- type brake
- safety device
- 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 - Lifetime
Links
- 238000007664 blowing Methods 0.000 title abstract 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The utility model relates to a brake safety device of a converter ladle top blowing rod. The brake safety device comprises a main circuit and a control circuit which are used for a brake of the converter ladle top blowing rod, wherein the main circuit comprises a main contact, which is in series connection with a converter ladle top blowing rod motor, of a first contactor, and the control circuit comprises a coil of the first contactor; the main circuit further comprises a main contact, which is in series connection with the main contact of the first contactor, of a second contactor, and the control circuit further comprises a coil, which is in parallel connection with the coil of the first contactor, of the second contactor. The brake safety device is simple in structure and is safe and reliable.
Description
Technical field
The utility model relates to a kind of band-type brake security device, is particularly suitable for the security device of converter ladle top blast rod bar band-type brake.
Background technology
Originally converter ladle top blast rod bar source brake control system is in the time of excellent bar operation, operating switch is direct or provide band-type brake and controller control signal by PLC, now band-type brake and controller simultaneously electric, band-type brake hydraulic pushing device (Electrohydraulic push rod) obtains the electric band-type brake of opening, rod bar carries out descending operation, in the time of dead electricity, and band-type brake locking, make excellent bar fixed dwell to a certain position, reach band-type brake control function.But in actual application, the controller contactor of rod bar band-type brake occasional in frequent use procedure runs into mechanism blockage or contact adhesion, while causing band-type brake there is no elevating control order, obtain electricity condition in band-type brake and open band-type brake, and then causing the idol that falls the accident of robbing to have generation, the use safety and the ladle supply that affect excellent bar connect the continuity of watering molten steel.
Summary of the invention
In order to overcome the shortcoming of prior art, the utility model provides a kind of converter ladle top blast rod bar band-type brake security device, and it is simple in structure, safe and reliable.
The technical scheme in the invention for solving the technical problem is: it comprises main power circuit and the pilot circuit of converter ladle top blast rod bar band-type brake, described main power circuit comprises the main contact of first contactor of connecting with converter ladle top blast rod bar motor, and described pilot circuit comprises the coil of the first described contactor; Described main power circuit also comprises second main noddle on contactor of connecting with the main contact of the first contactor, and described pilot circuit also comprises the coil with the second contactor of the coils from parallel connection of coils of the first described contactor.
The utility model is simple in structure, safe and reliable.
Brief description of the drawings
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Fig. 1 is the utility model schematic diagram.
Embodiment
As shown in Figure 1, the utility model comprises main power circuit and the pilot circuit of converter ladle top blast rod bar band-type brake, described main power circuit comprises the main contact of the first contactor KM1 connecting with converter ladle top blast rod bar motor M, and described pilot circuit comprises the coil of the first described contactor KM1; Described main power circuit also comprises the main contact of the second contactor KM2 connecting with the main contact of the first contactor KM1, and described pilot circuit also comprises the coil with the second contactor KM2 of the coils from parallel connection of coils of the first described contactor KM1.
Described the first contactor KM1 and the second contactor KM2 are alternating current contactor.
In band-type brake (or being equal to band-type brake) master loop, increase two contactor master loop serial connections and control, control loop is taked twin coil synchronous working, once a contactor is stuck, another contactor still can disconnect master loop effectively, reaches safe locking rod bar.In the time again operating, because contactor auxiliary contact does not reset, what it gave feeds back signal to PLC time variable control, make operation can not under precarious position, continue to use, in the time processing contactor fault, can continue to use, thereby the pendant rod bar of effectively avoiding causing because of mechanism blockage or contact adhesion inserts ladle, damages excellent bar and ladle molten steel performance without accident generations such as guarantee, has effectively ensured security, the reliability of excellent bar lifting process control.
Claims (2)
1. a converter ladle top blast rod bar band-type brake security device, it is characterized in that: the main power circuit and the pilot circuit that comprise converter ladle top blast rod bar band-type brake, described main power circuit comprises the main contact of first contactor (KM1) of connecting with converter ladle top blast rod bar motor (M), and described pilot circuit comprises the coil of described the first contactor (KM1); Described main power circuit also comprises the main contact of second contactor (KM2) of connecting with the main contact of the first contactor (KM1), and described pilot circuit also comprises the coil with second contactor (KM2) of the coils from parallel connection of coils of described the first contactor (KM1).
2. converter ladle top blast rod bar band-type brake security device according to claim 1, is characterized in that: described the first contactor (KM1) and the second contactor (KM2) are alternating current contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420197616.8U CN203820830U (en) | 2014-04-22 | 2014-04-22 | Brake safety device of converter ladle top blowing rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420197616.8U CN203820830U (en) | 2014-04-22 | 2014-04-22 | Brake safety device of converter ladle top blowing rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203820830U true CN203820830U (en) | 2014-09-10 |
Family
ID=51476350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420197616.8U Expired - Lifetime CN203820830U (en) | 2014-04-22 | 2014-04-22 | Brake safety device of converter ladle top blowing rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203820830U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108803430A (en) * | 2018-07-06 | 2018-11-13 | 攀钢集团西昌钢钒有限公司 | A kind of converter inclining brake control circuit and converter brake |
-
2014
- 2014-04-22 CN CN201420197616.8U patent/CN203820830U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108803430A (en) * | 2018-07-06 | 2018-11-13 | 攀钢集团西昌钢钒有限公司 | A kind of converter inclining brake control circuit and converter brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |
|
| CX01 | Expiry of patent term |