RU93025794A - THE METHOD OF AUTOMATIC CONTROL OF THE SPEED OF COILING OF COMBINS AND A DEVICE FOR ITS IMPLEMENTATION - Google Patents
THE METHOD OF AUTOMATIC CONTROL OF THE SPEED OF COILING OF COMBINS AND A DEVICE FOR ITS IMPLEMENTATIONInfo
- Publication number
- RU93025794A RU93025794A RU93025794/03A RU93025794A RU93025794A RU 93025794 A RU93025794 A RU 93025794A RU 93025794/03 A RU93025794/03 A RU 93025794/03A RU 93025794 A RU93025794 A RU 93025794A RU 93025794 A RU93025794 A RU 93025794A
- Authority
- RU
- Russia
- Prior art keywords
- current
- link
- combine
- average
- coal
- Prior art date
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 4
- 239000003245 coal Substances 0.000 claims 4
- 241001442055 Vipera berus Species 0.000 claims 2
- 230000001105 regulatory Effects 0.000 claims 1
Claims (1)
среднеквадратичное отклонение тока по формуле
вероятное значение максимального тока по формуле
Imax= Iср+βσI
и сравнивают с заданными значениями среднего и максимального токов, поддерживая их не выше уставок путем регулирования скорости подачи угольного комбайна. Устройство для осуществления способа состоит из двух каналов, один из которых содержит датчик тока и апериодическое звено, а второй канал включает последовательно соединенные тот же датчик тока, сумматор среднего и мгновенного значения токов, квадратор, апериодическое звено, вычислитель квадратного корня, пропорциональное звено и пропорциональное звено с регулируемой в функции напряжения на зажимах двигателя зоной нечувствительности, а выходы двух каналов соединены с сумматорами, причем выходы сумматоров соединены с системой управления производительностью гидронасоса механизма подачи угольного комбайна.The method relates to control systems for the feed rate of coal combines. The purpose of the invention is to improve the performance and reliability of a coal combine. The inventive: set the load current and the cut-off current as a function of the voltage level at the terminals of the cutting drive motor of the combine and determine: the average current consumption by the formula
standard deviation of current according to the formula
the probable value of the maximum current by the formula
I max = I cf + βσ I
and compared with the set values of the average and maximum currents, maintaining them no higher than the settings by adjusting the feed rate of the coal combine. A device for implementing the method consists of two channels, one of which contains a current sensor and an aperiodic link, and the second channel includes the same current sensor, the average and instantaneous value of currents, a quadrant, aperiodic link, square root calculator, proportional link and proportional link a link with a dead zone regulated as a function of the voltage at the motor terminals, and the outputs of the two channels are connected to adders, the outputs of the adders being connected to the control system performance of the hydraulic pump feed coal combine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU93025794A RU2066757C1 (en) | 1993-04-28 | 1993-04-28 | Method for automatic speed control over feed of coal miners and device for implementing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU93025794A RU2066757C1 (en) | 1993-04-28 | 1993-04-28 | Method for automatic speed control over feed of coal miners and device for implementing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU93025794A true RU93025794A (en) | 1996-05-10 |
| RU2066757C1 RU2066757C1 (en) | 1996-09-20 |
Family
ID=20141267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU93025794A RU2066757C1 (en) | 1993-04-28 | 1993-04-28 | Method for automatic speed control over feed of coal miners and device for implementing the same |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2066757C1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8608250B2 (en) * | 2011-09-30 | 2013-12-17 | Joy Mm Delaware, Inc. | Slow turning drum for a miner |
| RU169576U1 (en) * | 2016-12-26 | 2017-03-23 | Дмитрий Маркович Шпрехер | ELECTRIC DRIVE CONTROL DEVICE |
-
1993
- 1993-04-28 RU RU93025794A patent/RU2066757C1/en active
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