SU946818A1

SU946818A1 - Tube cutting unit rotating apparatus

Info

Publication number: SU946818A1
Application number: SU802978944A
Authority: SU
Inventors: Андрей Григорьевич Павлов; Анатолий Федорович Егоров
Priority date: 1980-09-02
Filing date: 1980-09-02
Publication date: 1982-07-30

Description

Изобретение относится к обработке металлов и может быть использовано в машиностроении для механизированной резки труб.The invention relates to the processing of metals and can be used in mechanical engineering for mechanized pipe cutting.

Известен вращатель установки для резки труб, содержащий корпус, приводную план- ⁵шайбу и зажимные кулачки [1].Known rotator installation for cutting pipes, comprising a housing, a drive plan- ⁵ washer and clamping cams [1].

Недостатком известного вращателя является сложность его конструкции и, как следствие, низкая надежность в эксплуатации. юA disadvantage of the known rotator is the complexity of its design and, as a consequence, low reliability in operation. Yu

Цель изобретения — повышение надежности в эксплуатации.The purpose of the invention is to increase reliability in operation.

Поставленная цель достигается тем, что вращатель установки для резки труб, содержащий корпус, приводную планшайбу и зажимные кулачки, снабжен смонтирован- ¹⁵ным в корпусе соосно планшайбе подвижным кольцом с тормозом, при этом планшайба выполнена с радиальными пазами, зажимные кулачки выполнены в виде сегментов со смонтированными на одном кон- 20 це каждого из них роликами, входящими в радиальные пазы планшайбы, а другим концом каждый из сегментов шарнирно связан с подвижным кольцом.This goal is achieved by the fact that the rotator of the pipe cutting machine, comprising a housing, a drive plate and clamping jaws, is equipped with a movable ring with a brake ¹⁵ mounted coaxially to the plate, the faceplate is made with radial grooves, the clamping jaws are made in the form of segments with rollers mounted at one end of each of them entering the radial grooves of the faceplate, and at the other end, each of the segments is pivotally connected to the movable ring.

На фиг. 1 показана кинематическая схема вращателя; на фиг. 2 — вращатель; на фиг. 3 — сечение А—А на фиг. 2; на фиг. 4 — сегмент вращателя; на фиг. 5 — вид по стрелке Б на фиг. 3 (схема установки сегментов в патроне); на фиг. 6 и 7 — два крайних положения сегментов при захвате трубы во время вращения планшайбы.In FIG. 1 shows a kinematic diagram of a rotator; in FIG. 2 - rotator; in FIG. 3 - section A — A in FIG. 2; in FIG. 4 - segment of the rotator; in FIG. 5 is a view along arrow B in FIG. 3 (diagram of the installation of segments in the cartridge); in FIG. 6 and 7 - two extreme positions of the segments during the capture of the pipe during rotation of the faceplate.

Вращатель содержит электродвигатель 1, редуктор 2 (при необходимости), бабку приводную 3.The rotator contains an electric motor 1, a gearbox 2 (if necessary), a drive headstock 3.

На редукторе 2 жестко закреплена шестерня 4. Бабка приводная 3 состоит из неподвижного корпуса 5, подвижного кольца 6, сегментов 7, планшайбы 8 с радиальными пазами 9, закрепленной в подвижном кольце 6 шпонкой 10.Gear 4 is rigidly fixed to gearbox 2. Drive headstock 3 consists of a fixed housing 5, a movable ring 6, segments 7, a faceplate 8 with radial grooves 9, a key 10 fixed in the movable ring 6.

Шестерня 11 жестко закреплена на планшайбе 8.Gear 11 is rigidly mounted on the faceplate 8.

Сегменты 7 соединены с подвижным кольцом 6 с помощью осей 12 через осевые отверстия одним своим концом и с планшайбой 8 через радиальные пазы 9 с помощью осей 13 и ролики 14 другим концом.Segments 7 are connected to the movable ring 6 using the axles 12 through the axial holes at one end and with the faceplate 8 through the radial grooves 9 using the axes 13 and the rollers 14 at the other end.

На неподвижном корпусе 5 через футорки 15 и пружины 16 установлены тормозные колодки 17. ^J The brake pads 17 are mounted on the stationary body 5 through the foots 15 and the springs 16. ^J

Вращатель работает следующим образом.The rotator operates as follows.

Труба, установленная на подвижные ролики (не показаны), заводится во вра- 5 щатель на необходимую длину, включается электродвигатель 1 и редуктор 2, и момент вращения через шестерни 4 и 11 передается планшайбе 8, которая, вращаясь в подвижном кольце 6 через пазы 9, давит на оси 13 и ролики 14 и передает усилие на сегменты 7.A pipe mounted on movable rollers (not shown) is inserted into the rotator 5 to the required length, the electric motor 1 and gearbox 2 are turned on, and the torque through the gears 4 and 11 is transmitted to the faceplate 8, which, rotating in the movable ring 6 through the grooves 9 presses on the axis 13 and the rollers 14 and transfers the force to the segments 7.

При этом подвижное кольцо 6 остается в состоянии покоя до тех пор, пока момент вращения, создаваемый электродвигателем 1 и редуктором 2, не пересилит момента is сопротивления, создаваемого тормозными колодками 17, которые и создают усилие, необходимое для зажатия трубы различного диаметра между сегментами.In this case, the movable ring 6 remains at rest until the rotation moment created by the electric motor 1 and gearbox 2 overpowers the moment is the resistance created by the brake pads 17, which create the force required to clamp the pipe of different diameters between the segments.

Для разжима трубы после реза делается реверс электродвигателя 1 и редуктора 2, и сегменты 7 возвращаются в исходное положение (фиг. 6 и 7).To expand the pipe after the cut, the motor 1 and gearbox 2 are reversed, and the segments 7 are returned to their original position (Figs. 6 and 7).

Необходимое усилие зажима трубы различного диаметра создается с помощью тормозных колодок 17, которые могут ре- 25 гулироваться с помощью футорок 15 через пружины 16.The required clamping force of the pipe of various diameters is created with the help of brake pads 17, which can be adjusted using the lugs 15 through the springs 16.

Труба может быть установлена по отношению к вращателю на любой длине, необходимой для ее захвата при резке.The pipe can be installed in relation to the rotator at any length necessary for its capture during cutting.

Предлагаемый вращатель установки для резки труб обладает простотой конструкции и надежен в эксплуатации.The proposed rotator installation for cutting pipes has a simple structure and reliable in operation.

Claims

The invention relates to the processing of metals and can be used in mechanical engineering for mechanized pipe cutting. A rotator of a pipe cutting unit is known, comprising a housing, a drive plate and clamping cams 1. A disadvantage of the known rotator is the complexity of its design and, as a result, low operational reliability. The purpose of the invention is to increase operational reliability. The goal is achieved by the fact that the rotator of the pipe cutting unit, comprising a housing, a drive faceplate and clamping cams, is equipped with a movable brake ring mounted coaxially on the faceplate, while the faceplate is made with radial grooves, the clamping cams are made in the form of segments with one mounted at the end of each of them, the rollers entering into the radial grooves of the faceplate, and the other end of each of the segments is pivotally connected with a moving ring. FIG. 1 shows a kinematic diagram of a rotator; in fig. 2 - rotator; in fig. 3 is a section A-A in FIG. 2; in fig. 4 - a segment of the rotator; in fig. 5 is a view along arrow B in FIG. 3 (diagram of the installation of segments in the cartridge); in fig. 6 and 7 are the two extreme positions of the segments when the pipe is seized during the rotation of the faceplate. The rotator contains an electric motor 1, a reducer 2 (if necessary), a drive head 3. The gear 2 is rigidly fixed with shchestren 4. The drive head 3 consists of a stationary body 5, a movable ring 6, segments 7, a face plate 8 with radial grooves 9 fixed in a movable ring 6 key 10. The gear 11 is rigidly fixed to the faceplate 8. Segments 7 are connected to the movable ring 6 by means of axles 12 through axial holes with one end and with a plate 8 through radial grooves 9 with the help of axes 13 and rollers 14 with the other end. On the fixed housing 5 through the futorki 15 and the spring 16 is installed brake pads 17. The grabber works as follows. A pipe mounted on movable rollers (not shown) is driven into the rotator to the required length, the electric motor 1 and the gearbox 2 turn on, and the torque through gears 4 and 11 is transferred to faceplate 8, which, rotating in the movable ring 6 through slots 9, presses on axis 13 and rollers 14 and transmits the force to the segments 7. In this case, the movable ring 6 remains at rest until the torque generated by the electric motor 1 and the gearbox 2 will not overpower the resistance moment created by the brake pads 17, which create effort e, required to clamp pipes of different diameters between segments. To release the pipe after cutting, the motor 1 and the gearbox 2 are reversed, and the segments 7 are returned to their original position (Figs. 6 and 7). The required clamping force for pipes of various diameters is created with the help of brake pads 17, which can be adjusted with the fasteners 15 through the springs 16. The pipe can be installed with respect to the rotator at any length necessary to grip it during cutting. The proposed rotator for a pipe cutting machine is simple in design and reliable in operation. Claims of the invention A rotator for a pipe cutting machine, comprising a casing; Unshrinkable and clamping cams, characterized in that, in order to increase operational reliability, it is equipped with a movable brake ring mounted coaxially in the case, coaxially made with radial grooves, clamping cams made in the form of segments with mounted at one end of each they are connected by rollers to the radial grooves of the faceplate, and the other end of each of the segments is hingedly connected with a movable ring. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 416238, cl. In 23 D 21/04, 1972 (prototype).

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