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Adjustable pull rod of core bar support frame

A mandrel support and tie rod technology, applied in metal processing equipment, metal rolling, manufacturing tools, etc., can solve problems such as inability to support and guide the mandrel, non-adjustable tie rods, poor neutrality of the three support rollers, etc., to meet the needs of the site Use requirements, precise centering, and high adjustment accuracy

Inactive Publication Date: 2015-08-05
烟台宝钢钢管有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an adjustable tie rod for a mandrel support frame, which mainly solves the poor alignment of the three support rollers in the frame caused by the non-adjustable pull rods of the existing mandrel support frame. Problems such as inability to effectively support and guide the mandrel

Method used

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  • Adjustable pull rod of core bar support frame
  • Adjustable pull rod of core bar support frame
  • Adjustable pull rod of core bar support frame

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Embodiment Construction

[0010] For better understanding and implementation, specific embodiments are given below in conjunction with the accompanying drawings to describe the present invention in detail; the illustrated embodiments are only used to explain the present invention, and are not intended to limit the protection scope of the present invention.

[0011] Example: see figure 1 , 2 , 3, 4, according to the design needs, the first tie rod 2, the second tie rod 3, the adjusting nut 4 and the fixing bolt 5 are processed; The protruding external thread, the external thread part is cylindrical, and the end is cylindrical; the second pull rod 3 is also an integral structure, one end is a pin hole with a bushing, and the center of the other end is an internal thread; the adjusting nut 4 is Internal and external thread structure, the inner thread is M72X4, the outer thread is M100X6, it is connected with the external thread of the first draw rod 2 through the internal thread, and is connected with th...

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PUM

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Abstract

The invention discloses an adjustable pull rod of a core bar support frame. The adjustable pull rod (1) is characterized by consisting of a first pull rod (2), a second pull rod (3), an adjusting nut (4) and a fixed bolt (5), wherein the first pull rod (2) is an integrated structure, one end is a pin shaft hole having a shaft sleeve, and the other end is a projected external thread; the second pull rod (3) is an integrated structure, one end is a pin shaft hole having a shaft sleeve, and the center of the other end is an internal thread; the adjusting nut (4) is an internal / external thread structure, is in fit connection with the external thread of the first pull rod (2) through the internal thread, is in fit connection with the internal thread of the second pull rod (3) through the external thread, and is positioned on the second pull rod (3) through the fixed bolt (5); internal and external threads of the adjusting nut (4) have the same rotating direction and different pitches; and when the adjusting nut (4) rotates by one lap, the length of the pull rod is changed by a pitch difference, so that the purpose of finely adjusting the length of the pull rod can be achieved, and the precise centering of three support rollers of the core bar support frame is realized.

Description

Technical field: [0001] The invention relates to the technical field of PQF-restricted mandrel continuous rolling, in particular to an adjustable pull rod for a mandrel supporting frame. Background technique: [0002] PQF limit mandrel continuous tube rolling technology is a tube rolling process technology developed in the mid-1990s. It has developed rapidly in the 21st century and represents the latest level of process design and manufacturing of today's seamless steel tube rolling mills. The mandrel support stand is the key equipment of the PQF continuous rolling mill. There are two mandrel support stands in the 5-stand PQF continuous rolling mill, which are used for the support and guidance of the mandrel. Before the capillary passes through and after rolling, the mandrel support rollers in the mandrel support frame are in the position of "holding" the mandrel to guide and center the mandrel; when the capillary is about to reach the support frame, the mandrel is The back...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B25/02
Inventor 逄振亮孙吉成孙德强刘鹏徐福昌赵军王晓臣
Owner 烟台宝钢钢管有限责任公司
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