SU149019A1 - Mandrel for straightening thin-walled large-diameter pipes - Google Patents

Mandrel for straightening thin-walled large-diameter pipes

Info

Publication number
SU149019A1
SU149019A1 SU731288A SU731288A SU149019A1 SU 149019 A1 SU149019 A1 SU 149019A1 SU 731288 A SU731288 A SU 731288A SU 731288 A SU731288 A SU 731288A SU 149019 A1 SU149019 A1 SU 149019A1
Authority
SU
USSR - Soviet Union
Prior art keywords
mandrel
diameter pipes
thin
walled large
walled
Prior art date
Application number
SU731288A
Other languages
Russian (ru)
Inventor
Чжу-Чжи-Чао
А.Л. Сонин
А.И. Целиков
Original Assignee
Чжу-Чжи-Чао
А.Л. Сонин
А.И. Целиков
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 Чжу-Чжи-Чао, А.Л. Сонин, А.И. Целиков filed Critical Чжу-Чжи-Чао
Priority to SU731288A priority Critical patent/SU149019A1/en
Application granted granted Critical
Publication of SU149019A1 publication Critical patent/SU149019A1/en

Links

Landscapes

  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Description

Известны онравки дл  нравки тонкостенных труб большого днаметра , выполненные в виде многоэксцентрикового вала с установле)ными па нем в подшипниках качени  рабочими ролнкал1И, расположенными вдоль оси оправки.Known standards for thin-walled pipes of large diameter, made in the form of a multi-eccentric shaft with roller mounted in rolling bearings by rolling workers, located along the axis of the mandrel.

Отличие описываемой оправкн дл  тонкостенных труб большого диаметра от известных заключаетс  в том, что рабочие ролики, расположенные на цилиндрической образующей оправки, выполнены поворотными в двух плоскост х и радпально перемещаемыми относительно оси оправки. При нравке внутренней новерхности трубы сообщаютс  деформации раст жени  и изгиба.The difference of the described mandrel for thin-walled large-diameter pipes from the known ones is that the working rollers located on the cylindrical generator of the mandrel are rotatable in two planes and radially movable relative to the axis of the mandrel. When you like the inner surface of the pipe, strain and flexural deformations are associated.

Благодар  такому вынолненню онравки улучшаетс  качество правки тонкостенных груб большого диаметра.Thanks to this approach, the quality of editing thin-walled coarse large diameter is improved.

На фиг. 1 изображена схема правки тонкостенной трубы; на фиг. 2 - сечение по А-А и Б-Б на фиг 1; на фиг. 3 дан продольный разрез части онравки; на фиг. 4 вид сверху па фиг. 3.FIG. 1 shows a diagram of editing thin-walled pipe; in fig. 2 is a section along A-A and B-B in Fig. 1; in fig. 3 given a longitudinal section of a part of the adjustment; in fig. 4 is a plan view of FIG. 3

Внутрь вращаемой трубы / вводитс  совершающа  возвратно-поступательное движение многор дна  оправка 2, па жестком стержне 3 которой закреилены конусные вчулки 4. Рабочие ролики 5, имеющею бочкообразную форму и размещенные в гнездах 6 на цилиндрической образующей оправки 2, опираютс  на конусные втулки 4 и при помощи последних получают радиальное перемещение. Это облегчает введение онравки внутрь трубы и позвол ет регулировать величину деформации раст жени  в процессе правки. Ролики 5 соверщают планетарное движение внутри трубы по окружности или по спирали, что достигаетс  регулированием угла наклона осей роликов 5 относительно оси трубы / и образующей онравки 2.Inside the rotatable tube /, the mandrel 2 is introduced into the reciprocating movement of the bottom multi-way, and the cones are fixed in the rigid rod 3 of which. the aid of the latter receive a radial displacement. This makes it easier to insert it into the pipe and allows you to adjust the amount of strain in the straightening process. The rollers 5 perform a planetary movement inside the pipe circumferentially or in a spiral, which is achieved by adjusting the angle of inclination of the axes of the rollers 5 relative to the axis of the pipe / and forming an alignment 2.

SU731288A 1961-05-22 1961-05-22 Mandrel for straightening thin-walled large-diameter pipes SU149019A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU731288A SU149019A1 (en) 1961-05-22 1961-05-22 Mandrel for straightening thin-walled large-diameter pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU731288A SU149019A1 (en) 1961-05-22 1961-05-22 Mandrel for straightening thin-walled large-diameter pipes

Publications (1)

Publication Number Publication Date
SU149019A1 true SU149019A1 (en) 1961-11-30

Family

ID=48304217

Family Applications (1)

Application Number Title Priority Date Filing Date
SU731288A SU149019A1 (en) 1961-05-22 1961-05-22 Mandrel for straightening thin-walled large-diameter pipes

Country Status (1)

Country Link
SU (1) SU149019A1 (en)

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