SU146384A1 - The method of determining the direction and magnitude of the displacement of the brushes from the neutral position in the DC machines - Google Patents

The method of determining the direction and magnitude of the displacement of the brushes from the neutral position in the DC machines

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Publication number
SU146384A1
SU146384A1 SU741837A SU741837A SU146384A1 SU 146384 A1 SU146384 A1 SU 146384A1 SU 741837 A SU741837 A SU 741837A SU 741837 A SU741837 A SU 741837A SU 146384 A1 SU146384 A1 SU 146384A1
Authority
SU
USSR - Soviet Union
Prior art keywords
brushes
magnitude
displacement
neutral position
determining
Prior art date
Application number
SU741837A
Other languages
Russian (ru)
Inventor
М.З. Гургенидзе
Original Assignee
М.З. Гургенидзе
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by М.З. Гургенидзе filed Critical М.З. Гургенидзе
Priority to SU741837A priority Critical patent/SU146384A1/en
Application granted granted Critical
Publication of SU146384A1 publication Critical patent/SU146384A1/en

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Description

Известный способ определени  смещени  щеток с нейтрали, когда на обмотку главных полюсов машины подают импульсы напр жени  и поворотом щеточной траверсы добиваютс  нулевого показани  прибора , подключенного к разноименным щетка.м машины, чему соответствует положение щеток на нейтрали,  вл етс  трудоемким и не дает возможности, в случае необходимости установить направление и точно определить степень поворота щеток от нейтрального положени , например , в мащинах с жестко закрепленным щеточным устройством.The known method for determining the displacement of brushes from the neutral when voltage pulses are applied to the winding of the main poles of the machine and by turning the brush bar to achieve zero readings of the device connected to the unlike brush of the machine, which corresponds to the position of the brushes on the neutral, is laborious and does not allow if necessary, establish the direction and accurately determine the degree of rotation of the brushes from the neutral position, for example, in maschih with a rigidly fixed brush device.

Предлагаемый способ не имеет указанных недостатков и заключаетс  в том, что обмотку возбуждени  питают переменным током,  корь мащины при неподвижных щетках поворачивают в ту и другую сторону и определ ют величину и направление смещени  щеток с нейтрали при помощи магнитоэлектрического прибора, подключенного к щеткам через выпр митель,The proposed method does not have the indicated drawbacks and consists in that the excitation winding is supplied with alternating current, the measles of the mash is turned in both directions with the fixed brushes and the magnitude and direction of the displacement of the brushes from the neutral is determined using a magnetoelectric device connected to the brushes through a straightener ,

На чертеже показана схема, используема  при применении данного способа.The drawing shows the diagram used when applying this method.

С помощью автотрансформатора / к обмотке возбуждени  2 исследуемой мащины подают переменный ток. К щеткам  кор  3 через выпр митель 4 на полупроводниковых диодах подключают магнитоэлектрический милливольтметр 5. Враща   корь 3 мащины сначала в одну сторону, а затем в другую, замечают показани  милливольтметра 5. Направление вращени , при котором наблюдаетс  уменьщение показани  милливольтметра 5, есть направление смещени  щеток с нейтрального положени , т. е. дл  установлени  щеток в нейтральное положение их поворачивают в обратную сторону. Изменение величины измер емого напр жени  при вращении  кор  в разных направлени х объ сн етс  «опрокидыванием щеток в сторону, противоположную вращению коллектора.An alternating current is supplied to the field winding 2 using an autotransformer /. Connect the magnetoelectric millivoltmeter 5 to the brushes of the core 3 via a rectifier 4 on semiconductor diodes. Rotate the mask 3 first in one direction and then in the other, read the indications of millivoltmeter 5. The direction of rotation in which the decrease in the reading of millivoltmeter 5 is observed is the direction of brush displacement from the neutral position, i.e. to set the brushes in the neutral position, they are turned in the opposite direction. The change in the magnitude of the measured voltage when the core rotates in different directions is explained by "tilting the brushes in the direction opposite to the collector rotation.

Величина измер емого милливольтметром 5 напр жени  есть степень (угол) поворота щеток от нейтрального положени  в соответствующем масштабе.«The magnitude of the voltage measured by a millivoltmeter 5 is the degree (angle) of the rotation of the brushes from the neutral position at the appropriate scale. "

Предлагаемый способ позвол ет упростить процесс определени  величины и направлени  смещени  щеток с нейтрали.The proposed method allows to simplify the process of determining the magnitude and direction of displacement of brushes from the neutral.

Предмет изобретени Subject invention

Способ определени  направлени  и величины смещени  щеток с нейтрального положени  в машинах посто нного тока, заключающийс  в том, что в обмотку возбуждени  подаетс  электрический ток и по показанию измерительного прибора, подключенного к разноименным щеткам машины, определ ют их смещение с нейтрали, отличающийс  тем, что, с целью упрощени  процесса испытани , дл  питани  обмотки возбуждени  примен ют переменный ток, поворачивают  корь при неподвижных щетках в ту и другую сторону и определ ют величину и направление смещени  щеток с нейтрали при дюмощп магнитоэлектрического прибора, подключенного к щеткам через выпр митель.The method of determining the direction and magnitude of the displacement of the brushes from the neutral position in the DC machines, which consists in that an electric current is supplied to the excitation winding and, as measured by a measuring device connected to the unlike brushes of the machine, they are displaced from the neutral, characterized in that In order to simplify the testing process, alternating current is used to power the excitation winding, turn the measles with the fixed brushes to one side and the other, and determine the magnitude and direction of the brushes from not Immersively at a dyumoschp magnetoelectric device connected to the brushes through a rectifier.

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SU741837A 1961-08-09 1961-08-09 The method of determining the direction and magnitude of the displacement of the brushes from the neutral position in the DC machines SU146384A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU741837A SU146384A1 (en) 1961-08-09 1961-08-09 The method of determining the direction and magnitude of the displacement of the brushes from the neutral position in the DC machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU741837A SU146384A1 (en) 1961-08-09 1961-08-09 The method of determining the direction and magnitude of the displacement of the brushes from the neutral position in the DC machines

Publications (1)

Publication Number Publication Date
SU146384A1 true SU146384A1 (en) 1961-11-30

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SU741837A SU146384A1 (en) 1961-08-09 1961-08-09 The method of determining the direction and magnitude of the displacement of the brushes from the neutral position in the DC machines

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