SU847421A1

SU847421A1 - Device for coiling and uncoiling cable

Info

Publication number: SU847421A1
Application number: SU752134039A
Authority: SU
Inventors: Георгий Владимирович Никифоров; Николай Францевич Рожковский; Витольд Андреевич Плахотник
Priority date: 1975-04-29
Filing date: 1975-04-29
Publication date: 1981-07-15

Description

Изобретение относится к устройствам для намотки·и размотки кабеля и может быть использовано в электротехнической промышленности и в других отраслях народного хозяйства на стационарных и мобильных установках.The invention relates to a device for winding · and unwinding a cable and can be used in the electrical industry and in other sectors of the economy in stationary and mobile installations.

Известна кабелеприемная установка, содержащая барабан, связанный с приводом его вращения, основание, подпружиненную предохранительную муфту и механизм для регулирования натяжения кабеля μ ]Known cable-receiving installation containing a drum associated with the drive of its rotation, the base, a spring-loaded safety clutch and a mechanism for adjusting the cable tension μ]

Недостатком такого устройства является то, что его барабан может использоваться только для однократной намотки, так как в процессе размотки невозможно обеспечить натяжение кабеля межцу барабаном и колесами. Кроме того, этим устройством невозможно обеспечить поддержание постоянного усилия, прилагаемого к кабелю, с изменением его слоев на барабане.The disadvantage of this device is that its drum can only be used for a single winding, since during the unwinding process it is impossible to ensure cable tension between the drum and the wheels. In addition, with this device it is impossible to maintain a constant force applied to the cable, with a change in its layers on the drum.

Цель изобретения - обеспечение надежности устройства.The purpose of the invention is the reliability of the device.

Поставленная цель достигается тем, что механизм для регулирования натяжения кабеля выполнен в виде втулки, установленной на основании, на которую навинчена шестерня, закрепленных на рычагах, жестко связанных между собой катка,расположенного между щеками барабана и эубчато.го сектора, находящегося в зацепле~ нии с шестерней, причем рычаг зубчатого сектора подпружинен к основанию, а вал барабана проходит внутри ₁₅ втулки.This goal is achieved by the fact that the mechanism for adjusting the cable tension is made in the form of a sleeve mounted on a base on which a gear is screwed, mounted on levers, rigidly interconnected with the roller located between the drum cheeks and the hooked sector engaged with gear, and the gear sector lever is spring-loaded to the base, and the drum shaft passes inside _{15 of the} sleeve.

На фиг.1 схематически изображено предлагаемое устройство, общий вид; на фиг.2 - разрез А-А на фиг.1.Figure 1 schematically shows the proposed device, General view; figure 2 is a section aa in figure 1.

Устройство для намотки и размот_м ки кабеля содержит барабан 1 для многослойной намотки питающего кабеля 2, каток 3, расположенный между щеками барабана и установленный на двух рычагах, жестко закрепленных · - 807421 с валом, установленным на шарнирах, зубчатый сектор 4, имеющий жесткую связь с валом и находящийся в зацеплении с гайкой-шестерней 5, которая навинчена на неподвижную втулку 6.установленной на основании, упорный подшипник 7, фрикционную муфту с приводной звездочкой 8 и пружину 9 катка.Device for winding and razmot _m cable ki comprises a drum 1 for a multilayer winding of the supply cable 2, the roller 3 disposed between the drum cheeks and mounted on two levers is rigidly fastened · - 807 421 with a shaft mounted on the hinges, the toothed sector 4 having a rigid connection with a shaft and meshed with a gear nut 5, which is screwed onto a stationary sleeve 6. mounted on the base, a thrust bearing 7, a friction clutch with a drive sprocket 8 and a spring 9 of the roller.

Устройство работает следующим образом.The device operates as follows.

При движении устройства, установленного на мобильной установке, от питающего колодца кабель 2 разматывается с барабана 1.When the device installed on the mobile installation moves from the supply well, cable 2 is unwound from the drum 1.

Когда размотается верхний слой кабеля, перекатывающийся по нему каток 3 под действием пружины 9. прижимается к очередному слою кабеля и с помощью рычагов поворачивает на определенный угол вал, зубчатый сектор 4 и гайку-шестерню 5. Причем угол поворота гайки-шестерни больше угла поворота вала во столько раз, во сколько радиус зубчатого сектора больше радиуса гайки-шестерни. С уменьшением слоев кабеля на барабане гайка-шестерня по резьбе неподвижной втулки 6 перемещается в напрг1влении расположения барабана, уменьшая тем самым силу сжатия пружины муфты.When the upper layer of the cable is unwound, the roller 3 rolled over it under the action of the spring 9. is pressed to the next cable layer and with the help of the levers rotates the shaft, the gear sector 4 and the gear nut 5. The angle of rotation of the gear nut is greater than the angle of rotation of the shaft as many times as the radius of the gear sector is greater than the radius of the gear nut. With a decrease in the cable layers on the drum, the gear nut along the thread of the stationary sleeve 6 moves in the direction of the location of the drum, thereby reducing the compression force of the coupling spring.

Необходимое усилие сжатия, соответствующее количеству слоев кабеля на барабане, достигается шагом резьбы, характеристикой пружины и углом поворота гайки-шестерни.The necessary compression force corresponding to the number of cable layers on the drum is achieved by the thread pitch, the characteristic of the spring and the angle of rotation of the gear nut.

Таким образом, изменением крутящего момента приводной фрикционной муфты достигается автоматическое поддержание постоянного усилия, прилагаемого к кабелю, независимо от изменения его слоев на барабане.Thus, by changing the torque of the drive friction clutch, automatic maintenance of a constant force applied to the cable is achieved, regardless of changes in its layers on the drum.

При намотке кабеля на барабан каждый его слой отжимает каток 3, растягивая при этом пружину 9. Взаимодействие остальных деталей устройства происходит в обратной последователь10 ности.When winding the cable onto the drum, each layer of it squeezes the roller 3, while stretching the spring 9. The rest of the device interacts in the reverse sequence.

Claims

The invention relates to a device for winding and unwinding a cable and can be used in electrical engineering and in other sectors of the national economy in stationary and mobile installations. A well-known cable-receiving installation comprising a drum associated with a drive of its rotation, a base, a spring-loaded safety clutch and a mechanism for adjusting the tension of the cable J. The disadvantage of such a device is that its drum can only be used for a single winding, since The coils cannot provide tension on the cable between the drum and the drum themselves. In addition, it is impossible with this device to maintain a constant force applied to the cable with changing its layers on the drum. The purpose of the invention is to ensure the reliability of the device. The goal is achieved by the fact that the mechanism for adjusting the tension of the cable is made in the form of a sleeve mounted on a base on which a gear wheel mounted on levers is rigidly connected between a roller located between the cheeks of the drum and the toothed sector which is in engagement with gear, and the lever of the toothed sector is spring-loaded to the base, and the shaft of the drum passes inside the sleeve. In Fig.1 schematically shows the proposed device, a General view; figure 2 - section aa in figure 1. The device for winding and unwinding a cable contains a drum 1 for multi-layer winding of a power cable 2, a roller 3 located between the cheeks of the drum and mounted on two levers rigidly fixed 3. with a shaft mounted on hinges, a toothed sector 4 that is rigidly connected to the shaft and meshes with gear nut 5, which is screwed onto a stationary sleeve 6, mounted on a base, a thrust bearing 7, a friction clutch with an asterisk 8 and spring 9 of the rink. The device works as follows. When the device mounted on the mobile unit is moving, the cable 2 is spread from the supply well to drum I. When the upper layer of the cable is unwound, the roller 3 rolling over it under the action of the spring 9 is pressed against the next layer of cable and the shaft is turned at a certain angle , toothed sec tor 4 and gear nut 5. Moreover, the angle of rotation of the nut gear is greater than the angle of rotation of the shaft by as many times as the radius of the gear sector is larger than the radius of gear 1 nut. With a cleansing of the cable sleeves on the nut-gear drum, the threads of the fixed nup 6 are moved in the direction of the drum arrangement, thereby reducing the compression force of the clutch spring. The required compressive force, corresponding to the number of layers of cable on the drum, is achieved by the pitch of the thread, the spring characteristic and the angle of rotation of the gear nut. Thus, by changing the torque of the drive friction clutch, an automatic maintenance of the constant force applied to the cable is achieved, regardless of the variation of its layers on the drum. When the cable is wound on a drum, each layer of it presses the roller 3, thereby stretching the spring 9. The interaction of the remaining parts of the device occurs in reverse order. The invention The device for winding and unwinding a cable containing a drum associated with a drive of its rotation, a base, a spring-loaded safety clutch and a mechanism for adjusting the tension of the cable, characterized in that, to ensure the reliability of the device, the mechanism for adjusting the tension of the cable is made in the form of a sleeve mounted on a base on which a gear wheel is screwed, fixed on levers, rigidly connected to each other of a roller located between the cheeks of the drum and the dentate sector located In engagement with the gear, and the gear-sector lever is spring-loaded to the base, and the drum shaft passes inside the sleeve. Sources of information taken into account in the examination. 1, USSR Author's Certificate No. 327548, cl. H 02 G 11/02, 1968.

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