SU1002073A2

SU1002073A2 - Helix twisting apparatus

Info

Publication number: SU1002073A2
Application number: SU802947150A
Authority: SU
Inventors: Станислав Сильвестрович Носаль
Original assignee: Куйбышевский институт инженеров железнодорожного транспорта
Priority date: 1980-06-27
Filing date: 1980-06-27
Publication date: 1983-03-07

Description

Изобретение относитс к изготов лению невращающейс спирали неограниченной длины и может быть использовано в кабельной, машиностроительной и в других отрасл х промышленнос .ти, а также в нефт ной и газовой промышленности.дл изготовлени гибких армированных труб.The invention relates to the manufacture of a non-rotating helix of unlimited length and can be used in the cable, engineering and other industries, as well as in the oil and gas industry for the manufacture of flexible reinforced pipes.

Из основного авт. св. К 933164 известно устройство дл навивки спирали неограниченной длины, содержа:щее приводной барабан дл навиваемой проволоки, планшайбу, размещенный на планшайбе механизм подачи проволоки с подгиощим роликом, кинематически св занный с приводом посредством зубчатого дифференциала, механизм формообразовани спиргши, а также установленный на планшайбе направл ющий элемент дл ориентации проволоки на подающий ролик Cl.From the main auth. St. By 933164, a device for winding a spiral of unlimited length is known, containing: a driving drum for the wire being rolled, a faceplate, a wire feeding mechanism with a roll that is kinematically connected to the drive by a gear differential, a spirings shaping mechanism, as well as a guideline element for orientation of the wire to the feed roller Cl.

Недостатком этого устройства вл етс недостаточна надежность его работы при резком уменьшении .скорости вращени планшайбы во врем ее остановки, что приводит к обрыву проволоки и снижению качества спирали. Этот недостаток устройства вызван тем, что при снижении скорости планшайбы барабан с навиваемойA disadvantage of this device is the lack of reliability of its operation with a sharp decrease in the speed of rotation of the faceplate during its stopping, which leads to wire breakage and a decrease in the quality of the helix. This drawback of the device is caused by the fact that as the speed of the faceplate decreases, the drum with the winding

проволокой продолжает вращатьс некоторое врем по инерции в сторону первоначального своего вршцени и происходит сматывание с него проволоки , свободна длина которой запутываетс на барабане, и происходит ее обрыв вследствие резкого увеличени сопротивлени .the wire continues to rotate for some time by inertia in the direction of its initial vrshtsen, and a wire is rolled up from it, the free length of which gets entangled on the drum, and it is broken due to a sharp increase in resistance.

Целью изобретени вл етс повы10 шение надежности работы устройства.The aim of the invention is to improve the reliability of the device.

Поставленна цель достигаетс тем, что в предлагаемом устройстве барабан дл навиваемой проволоки снабжен электромагнитным тормозом, The goal is achieved by the fact that, in the proposed device, the drum for winding wire is equipped with an electromagnetic brake,

15 электрически св занным с приводным электродвигателем планшайбы.15 electrically connected to the faceplate motor.

На чертеже изображена схема устройства .The drawing shows a diagram of the device.

Устройство состоит из рамы 1, на The device consists of a frame 1, on

20 которой закреплены основные узлы. На одном конце рамы 1 закреплена консольно труба 2, на которой на подшипниках качени установлен барабан 3 с проволокой. На другом конце рамы 1 20 which fixed the main nodes. At one end of the frame 1 a cantilevered pipe 2 is fixed, on which a drum 3 with wire is mounted on rolling bearings. At the other end of the frame 1

Claims

25 is installed on rolling bearings a hollow shaft 4, on which a drive of a wire feed mechanism 5 of a planetary type is fixed, a faceplate 6 on which a mechanism for feeding wire 7, kinematically connected with a wire feeding mechanism 5, is installed, orienting and VEP equalizing the wire to The fur roller of the feeding unit 7 and the element 8. On the plate 6 also there is a mechanism for forming the helix 9 and a wire guiding the shaping mechanism element 10. The wire feeder 7 is made in the form of a roller with a groove on the outside second surface of the rim and embracing the roller chain assembly with its re-regulation voltage. One end of the chain is connected to the faceplate and the other to an adjusting screw for adjusting its tension. The roll groove profile corresponds to the cross section of the wire from which the helix and the feed roller coil are kinematically connected to the electric motor 11 by means of gears 12-21 of the wire feed mechanism and belt transmission. The shaft of the wire feed roller 2 is mounted on rolling bearings on the faceplate 6. The shaping mechanism of the helix 9 contains shaping rollers, in the casing of which an adjusting screw is installed to adjust the diameter and pitch of the spiral helix. The pipe 2 is equipped with a brake 23 for braking the drum 3 at a decrease in the rotation speed of the faceplate 6. The brake is activated automatically, as it is electrically connected to the drive electric motor of the faceplate .. The brake 23 consists of friction elements 24 and spring elements 25. Device works as follows. Before starting work, the wire is wound on the drum 3. Then, using the tension screw of the roller chain, create a gap between the feed roller groove and the chain. The end of the wire wound on the drum is passed into the orienting and guiding element 8, and then it is passed into the resulting gap between the chain and the feed roller in the guiding element 10 and into the shaping rollers, which are preliminarily adjusted to a specific diameter and pitch of the helix. Rotating the faceplate 6 manually, they form two or three turns of the wire spiral. After that, using the adjusting screw, create the necessary efforts to press the roller chain against the feed roller chute. It turns on with the electric motor 11, and the further operation of the device is carried out automatically. From the electric motor 11 through the belt drive, the rotation is transmitted to the shaft 4 and through the gears 21, 20, 19, 18, 17, 16, 15, 14, 13 and 12 to the shaft 22 of the roller of the wire feeder 7. The replaceable gears 18 and 19 are intended for adjusting the device when changing the diameter of the spiral. The roller of the feed mechanism 7, while rotating, winds the wire from the drum 3 and, through the orienting and guiding element 8, forcibly feeds it by friction between the roller of the feed mechanism 7 and the roller chain into the shaping mechanism of the spiral 9, where the shaping rollers deform the wire into a non-rotating spiral of unlimited length. When winding a spiral onto a flexible element (electric cable, hose, etc.), the latter is fed into the hole of the hollow shaft 4. A non-rotating spiral is formed by the opposite direction of movement with the same angular speed of winding the helix and faceplate 6. As the rotation speed of the faceplate decreases The brake 23 is activated, the friction elements 24 of which are pressed against the rotating parts of the drum 3, and the speed of its rotation decreases. When the electric motor 11 is switched on, the friction elements 24 are kept from pressing against the drum elements by the spring 25, which is compressed under the action of the electromagnetic effect by applying voltage from the electric motor. When relieving tension, the spring presses the friction elements of the brake 24 to the rotary pulleys of the drum, which reduces its rotational speed. The presence of a brake mounted on a drum with a twisted wire, can significantly increase the reliability of the device, as it eliminates the possibility of breakage of the wire being rolled while reducing the speed of rotation of the faceplate due to the advance rotation of the drum. St. No. 933164, characterized in that, in order to increase reliability, the winding wire reel is provided with an electromagnetic brake electrically connected with the drive motor of the faceplate. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 933164, cl. B 21 F 3/02, 1979 (prototype).

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