CN2466156Y - Trail rod auto-control device - Google Patents
Trail rod auto-control device Download PDFInfo
- Publication number
- CN2466156Y CN2466156Y CN 01214116 CN01214116U CN2466156Y CN 2466156 Y CN2466156 Y CN 2466156Y CN 01214116 CN01214116 CN 01214116 CN 01214116 U CN01214116 U CN 01214116U CN 2466156 Y CN2466156 Y CN 2466156Y
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- CN
- China
- Prior art keywords
- coil
- frequency transformer
- control device
- utility
- model
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- 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 probe ruler automatic-control device which is characterized in that the output terminal of an automatic air switch ZK is connected with the input terminal of a frequency converter VC. The output terminal of the frequency converter VC is connected with a motor M. The contact points 1J1, 2J1 of an intermediate relay are respectively connected with the terminals 1, 3 of the frequency converter VC. The terminals 18, 20 of the frequency converter VC are connected with the loop joints 18, 20 of a coil of a relay 3J in a control circuit, and the contact point 3J1 of the relay in the control circuit is connected with a failure circuit. A contact point J1 is connected with a coil 1J, and a contact point J2 is connected with a coil 2J. The utility model has few components and low failure rate, can effectively control the probe ruler to follow a material post surface in a high furnace, and controls speed. The utility model is characterized in that the utility model is suitable for poor work environments.
Description
The utility model belongs to automation field, particularly a kind of device of controlling the stock rod lifting, descending.
In metallurgical industry, stock rod is usually used in surveying the height of stock column face.The automatic control of stock rod at present as the automatic control of blast furnace probing rod, is adopted the size of control YZR serial motors rotor resistance slow down liftings, decline, so that the height of stock column face in the blast furnace is followed the tracks of.This method is because function unit is many, and the precision of rotor resistance adjustment is low, can not adjust step by step, and subject range is narrow, breaks down easily.Stock rod can not effectively be controlled the tracking of stock column face in the blast furnace, speed etc., in addition the brush of YZR serial motors in the abominable Working environment of blast furnace, easily loss.
The purpose of this utility model provides a kind of stock rod automatic control device.It has parts few, and failure rate is low; Tracking, the speed of stock rod can be controlled effectively, the characteristics of abominable Working environment can be adapted to stock column face in the blast furnace.
For reaching above-mentioned purpose, the output terminal of automatic air-break switch ZK that is characterised in that of the present utility model is connected with the input terminus of frequency transformer VC, and the output terminal of frequency transformer VC is connected with electric motor M; The 1J of intermediate relay
1, 2J
1Contact is connected with 1,3 terminals of frequency transformer VC respectively; The terminal 18,20 of frequency transformer VC is connected with the loop node 18,20 of pilot circuit repeat circuit 3J coil, pilot circuit repeat circuit contact 3J
1Be connected contact J with faulty circuit
1Be connected contact J with the 1J coil
2Be connected with the 2J coil.
The most handy vector frequency converter of frequency transformer VC.
Electric motor is rice YZ serial motors preferably.
Be provided with vent-pipe on the motor surface.
The utility model is because its parts are few, and therefore easy to maintenance, failure rate is low.The utility model adopts lifting, the decline of vector frequency converter control stock rod, can control tracking, the speed of stock rod effectively to stock column face in the blast furnace, the utility model adopts the YZ serial motors in addition, and the brush of cancellation YZR serial motors can adapt to abominable Working environment.
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1 is main line figure of the present utility model;
Fig. 2 is control circuit figure of the present utility model.
Referring to Fig. 1 and Fig. 2.The output terminal of automatic air-break switch ZK is connected with the input terminus of frequency transformer VC, the most handy vector frequency converter of frequency transformer VC.The output terminal of frequency transformer VC is connected with electric motor M, and electric motor preferably adopts the YZ serial motors.The 1J of intermediate relay
1, 2J
1Contact is connected with 1,3 terminals of frequency transformer VC respectively; The terminal 18,20 of frequency transformer VC is connected with the loop node 18,20 of pilot circuit repeat circuit 3J coil, pilot circuit repeat circuit contact 3J
1Be connected contact J with faulty circuit
1Be connected contact J with the 1J coil
2Be connected with the 2J coil.The utility model adopts the YZ serial motors, controls lifting, the decline of stock rod by the vector frequency converter of digit manipulation.Set motor and just transferring lifting to, be reversed to decline, regulate setpoint frequency control of conversion device output voltage.When motor just changes, stock rod promotes with proper speed, stops if promoting signal, and then frequency transformer is exported direct current in short-term, and by force to motor braking, stock rod accurately puts in place; When the stock rod dropping signal occurred, frequency transformer was exported long-acting heavy DC, and the counter-rotating of stock rod decline motor is when arriving the stock column face, because the supporting role and the DC injection braking moment of stock column face can not descend stock rod.If stock rod loses the support of stock column face, heavy DC can not be held stock rod, and then stock rod descends with the decline of stock column face, and promptly stock rod can be implemented accurate the tracking to the height of stock column face; In the process that stock rod descends with the stock column face, signal appears promoting, because interchange is directly switched on direct current and the motor internal magnetic field can not disappear immediately, alternative staring torque is increased, therefore can avoid stock rod in handoff procedure, to glide.
As node J
1Closure, 1J energising, 1J
1Closed.The setpoint frequency output AC voltage is pressed in frequency transformer work, and motor M is just changeed, and stock rod promotes, when arriving the rising limit, and J
1Disconnect 1J outage, 1J
1Disconnect, frequency transformer output braking direct current force motor M to stop operating, and stopper is held brake wheel tightly; As node J
2Closure, 2J energising, 2J
1Closed.Frequency transformer work, by setting percentage of current output DC stream, motor M is driven counter-rotating by stock rod, when stock rod arrives blast furnace stock column face, since the anchorage force of stock column face, stock rod test with the decline of stock column face; When frequency transformer breaks down, 3J energising, 3J
1Disconnect, 18,20 nodes are connected in the pilot circuit, stopper outage band-type brake, and stock rod quits work, and motor stops operating.
On the motor surface vent-pipe is set, is used for air is blowed to motor, force the motor cooling, to prolong the work-ing life of motor.
Claims (4)
1. a stock rod automatic control device is characterized in that the output terminal of automatic air-break switch ZK is connected with the input terminus of frequency transformer VC, and the output terminal of frequency transformer VC is connected with electric motor M; The 1J of intermediate relay
1, 2J
1Contact is connected with 1,3 terminals of frequency transformer VC respectively; The terminal 18,20 of frequency transformer VC is connected with the loop node 18,20 of pilot circuit repeat circuit 3J coil, pilot circuit repeat circuit contact 3J
1Be connected contact J with faulty circuit
1Be connected contact J with the 1J coil
2Be connected with the 2J coil.
2. stock rod automatic control device according to claim 1 is characterized in that the most handy vector frequency converter of frequency transformer VC.
3. stock rod automatic control device according to claim 1 is characterized in that electric motor preferably adopts the YZ serial motors.
4. stock rod automatic control device according to claim 1 is characterized in that being provided with vent-pipe on the motor surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01214116 CN2466156Y (en) | 2001-02-08 | 2001-02-08 | Trail rod auto-control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01214116 CN2466156Y (en) | 2001-02-08 | 2001-02-08 | Trail rod auto-control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2466156Y true CN2466156Y (en) | 2001-12-19 |
Family
ID=33632941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01214116 Expired - Fee Related CN2466156Y (en) | 2001-02-08 | 2001-02-08 | Trail rod auto-control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2466156Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102703629A (en) * | 2012-05-25 | 2012-10-03 | 中冶南方工程技术有限公司 | System and method for controlling sounding rod of blast furnace |
-
2001
- 2001-02-08 CN CN 01214116 patent/CN2466156Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102703629A (en) * | 2012-05-25 | 2012-10-03 | 中冶南方工程技术有限公司 | System and method for controlling sounding rod of blast furnace |
| CN102703629B (en) * | 2012-05-25 | 2013-08-14 | 中冶南方工程技术有限公司 | System and method for controlling sounding rod of blast furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHONGQING STEEL CO., LTD. Free format text: FORMER NAME OR ADDRESS: CHONGQING STEEL(GROUP)CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Chongqing Iron and Steel Co., Ltd. Patentee before: Chongqing Iron & Steel (Group) Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20011219 |