SU8678A1 - The lift of the electric motor of the lifting mechanism in crane devices - Google Patents

The lift of the electric motor of the lifting mechanism in crane devices

Info

Publication number
SU8678A1
SU8678A1 SU20317A SU20317A SU8678A1 SU 8678 A1 SU8678 A1 SU 8678A1 SU 20317 A SU20317 A SU 20317A SU 20317 A SU20317 A SU 20317A SU 8678 A1 SU8678 A1 SU 8678A1
Authority
SU
USSR - Soviet Union
Prior art keywords
electric motor
lifting mechanism
lift
crane devices
current
Prior art date
Application number
SU20317A
Other languages
Russian (ru)
Inventor
Н.Н. Емцов
Original Assignee
Н.Н. Емцов
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 Н.Н. Емцов filed Critical Н.Н. Емцов
Priority to SU20317A priority Critical patent/SU8678A1/en
Application granted granted Critical
Publication of SU8678A1 publication Critical patent/SU8678A1/en

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  • Control And Safety Of Cranes (AREA)

Description

Предлагаемое изобретение касаетс  ограничител  хода электрического двигател  подъемного механизма в крановых устройствах, снабженных предельными выключател ми и дифференциальным реле, служащим, при перемене направлени  хода двигател , дл  замыкани  накоротко контактов  корной цепи двигател , размыкаемых гтредельным выключателем .The present invention relates to a stroke limiter of an electric motor of a lifting mechanism in crane devices equipped with limit switches and a differential relay, which, when changing the direction of the stroke of the engine, for shorting the contacts of an engine circuit, opened by a limit switch.

На чертеже дана схема соединени  дл  предлагаемого автоматического выключател , при чем обмотки дифференциального реле питаютс  главным током. Цепь тока при подъеме: обмотка возбуждени  а Ь, перва  обмотка дифференциального реле с d, втора  обмотка дифференциального реле g А, контакты 5 t предельного выключател  С,  корь электродвигател  е /. После размыкани верхних контактов предельного выключател  С ток от второй обмотки дифференциального реле проходит по контактам q г переключател  С, по контактам р о переключател  5 и по добавочному сопротивлению т п, рассчитанному так, чтобы компенсировать среднее сопротивление  кор  электродвигател . После переключени  контроллера на спуск, ток пойдет по п)гти а bcdnmoprq во вторую обмотку дифференциального реле по направлению Л g, благодар  чему  корь А вт нетс  и будут замкнуты контакты г и у и ток пойдет вместо сопротивлени  л m в  корь электродвигател  по направлению /ей далее по пути г / А g. При попытке пустить ток в направлении подъема до обратного включени  переключател  С, переключатель В снова встанет в свое нижнее положение и разомкнет путь j i к  корю электродвигател .In the drawing, the connection diagram for the proposed circuit breaker is proposed, wherein the windings of the differential relay are powered by the main current. Current circuit during lifting: excitation winding a b, first differential relay winding with d, second differential relay winding g A, contacts 5 t of limit switch C, electric motor measles e /. After opening the upper contacts of the limit switch C, the current from the second winding of the differential relay passes through the contacts q and switch C, through the contacts p of the switch 5 and through the additional resistance m p calculated to compensate for the average resistance of the electric motor. After switching the controller to descent, the current will go according to paragraphs bcdnmoprq to the second winding of the differential relay in the direction Lg, so that the measles At nots and the contacts r and y will be closed and the current will go instead of the resistance m her further along the way g / a g. If you try to start up the current in the upward direction before turning back on switch C, switch B will again return to its lower position and open the path j i to the electric motor core.

Предмет патента.The subject of the patent.

Ограничитель хода электрического двигател  подъемного механизма в крановых устройствах, снабженныхThe lift stop of the electric motor of the lifting mechanism in crane devices fitted with

предельными выключател ми и дифференциальным реле, служащим, при перемене направлени  хода двигател , дл  замыкани  накоротко контактов  корной цепи двигател , размыкаемых предельным выключателем , характеризующийс  применением сопротивлени  и т включаемогв предельным выключателем С последовательно с обмоткой g h, и назначенного дл  поддержани  неизменной силы тока этой вбмотки.limit switches and a differential relay serving when changing the direction of the engine stroke to short-circuit the motor's main circuit, opened by a limit switch, characterized by the use of resistance and on switchable by the limit switch C in series with winding gh, and assigned to maintain a constant current strength of this drive .

SU20317A 1927-10-24 1927-10-24 The lift of the electric motor of the lifting mechanism in crane devices SU8678A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU20317A SU8678A1 (en) 1927-10-24 1927-10-24 The lift of the electric motor of the lifting mechanism in crane devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU20317A SU8678A1 (en) 1927-10-24 1927-10-24 The lift of the electric motor of the lifting mechanism in crane devices

Publications (1)

Publication Number Publication Date
SU8678A1 true SU8678A1 (en) 1929-03-30

Family

ID=48331073

Family Applications (1)

Application Number Title Priority Date Filing Date
SU20317A SU8678A1 (en) 1927-10-24 1927-10-24 The lift of the electric motor of the lifting mechanism in crane devices

Country Status (1)

Country Link
SU (1) SU8678A1 (en)

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