SU81470A1 - Method for automatic deceleration of lifting installations driven by an induction motor and device for performing the method - Google Patents
Method for automatic deceleration of lifting installations driven by an induction motor and device for performing the methodInfo
- Publication number
- SU81470A1 SU81470A1 SU390230A SU390230A SU81470A1 SU 81470 A1 SU81470 A1 SU 81470A1 SU 390230 A SU390230 A SU 390230A SU 390230 A SU390230 A SU 390230A SU 81470 A1 SU81470 A1 SU 81470A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- induction motor
- automatic deceleration
- lifting
- lifting installations
- driven
- Prior art date
Links
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Description
Известны способы торможени подъемных установок этого рода, но ОН1И не обеспечивают -получени требуемых механических характеристИК при Малых скорост х лодъема и не позвол ют осуществл ть автоматические дозировки тормозного усили ,по желаем ому закону.Methods of braking lifting equipment of this kind are known, but ON1I do not provide the required mechanical characteristics at Low airspeed and do not allow automatic dosing of braking force, according to the desired law.
Предметом изобретени вл етс способ автоматического торможени подъемных уста овок с приводом от аси нхронного двигател , основанный на использовании тормозного генератора посто нного тока, устаиовленного на одном валу с асинхронньгм двигателем.The subject of the invention is a method of automatically braking lifting gears driven by an asynchronous motor based on the use of a DC brake generator installed on one shaft with an asynchronous motor.
Применение предлагаемого способа Позвол ет более эффективно использовать подъемные установки с асинхронным -приводом.The application of the proposed method allows more efficient use of lifting installations with asynchronous -drive.
Улучшение механических характеристик достигаетс путем включени тормозного генератора посто нного тока в процессе торможени сначала на статор асинхроннОГО двигател дл осуществлени динамического торможени , а затем при достаточном уменьшении кинетической энергии - на омическое сопротивление.Improvement of the mechanical characteristics is achieved by switching on the DC brake generator during braking, first to the stator of the asynchronous motor to perform dynamic braking, and then with a sufficient decrease in kinetic energy - to ohmic resistance.
Дл обеспечени автоматического дозирова-ни тормозного усили питание обмотки возбуждени тормозного генератора осуш,ествл етс от электромашинного усилител , управл емого чувствительными элементами , контролирующими работу электропривода в зависимости от скорости или пройденного 1пути.In order to provide automatic dosing of braking force, the power supply to the excitation winding of the brake generator is dried from an electric booster controlled by sensing elements controlling the operation of the electric drive depending on the speed or the distance traveled.
На чертеже приведена П1ринцИПиальна электрическа схема предлагаемого устройства.The drawing shows a PIRTIC electronic circuit of the proposed device.
В предлагаемом устройстве в качестве тормоза применен небольшой тор.мозной генератор ТГ посто нного тока с независимым возбуждением , используе.мый одновременно в схеме динамического торможени . Генератор ТГ св зан с валом асин.хронного двигател ЛД, привод щего в движение подъемную устаиовку, с помощью жесткой муфты ИЛИ зубчатой передачи.In the proposed device, a small toroidal TG generator of direct current with independent excitation, used simultaneously in a dynamic braking circuit, is used as a brake. The TG generator is connected to the shaft of an asyn.chronous LD motor driving the lifting installation using a rigid coupling OR gearing.
В период разгона подъемной установки и при подъеме на максимальной скорости цепь кор генератора ТГ разомкнута.During the acceleration of the lift installation and during lifting at maximum speed, the core of the TG generator is open.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU390230A SU81470A1 (en) | 1949-01-18 | 1949-01-18 | Method for automatic deceleration of lifting installations driven by an induction motor and device for performing the method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU390230A SU81470A1 (en) | 1949-01-18 | 1949-01-18 | Method for automatic deceleration of lifting installations driven by an induction motor and device for performing the method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU81470A1 true SU81470A1 (en) | 1949-11-30 |
Family
ID=48254882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU390230A SU81470A1 (en) | 1949-01-18 | 1949-01-18 | Method for automatic deceleration of lifting installations driven by an induction motor and device for performing the method |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU81470A1 (en) |
-
1949
- 1949-01-18 SU SU390230A patent/SU81470A1/en active
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