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Roller dismounting device for sizing mill and dismounting method

A sizing machine and roll technology, applied in metal rolling, metal rolling, metal rolling stands, etc., can solve problems such as inapplicability to production sites, and achieve the effects of easy operation and maintenance, large transformation potential, and convenient use.

Inactive Publication Date: 2015-11-04
HANDAN XINXING SPECIAL TUBING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

None of the above are applicable to the production site

Method used

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  • Roller dismounting device for sizing mill and dismounting method
  • Roller dismounting device for sizing mill and dismounting method

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Embodiment Construction

[0019] The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.

[0020] see Figure 1~2 , a roll dismounting device for a sizing mill, comprising a pressing device, a push-pull device and a frame 3; The hydraulic cylinder 1 is vertically fixed on the top of the frame 3, and the telescopic end of the press-down hydraulic cylinder 1 is downward. Preferably, the press-down hydraulic cylinder 1 is fixed on the frame 3 by screws, and the hydraulic system A controls the press-down hydraulic pressure. The expansion and contraction of the cylinder 1, the frame 3 is also equipped with a photoelectric switch A, the photoelectric switch A is used to generate induction after the hydraulic cylinder 1 is extended to the preset position, and controls the hydraulic cylinder 1 to stop working, the photoelectric switch A The position of the push-pull is adjusted according to actual needs to disassemble or install the roll 5; the...

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PUM

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Abstract

The invention discloses a roller dismounting device for a sizing mill. The roller dismounting device comprises a downward pressing device, a push-pull device and a rack, wherein the downward pressing device comprises a downward pressing hydraulic cylinder and a hydraulic system A matched with the downward pressing hydraulic cylinder, the downward pressing hydraulic cylinder is vertically fixed at the top end of the rack, the telescoping end of the downward pressing hydraulic cylinder faces downwards, and the hydraulic system A controls telescoping of the downward pressing hydraulic cylinder; a photoelectric switch A is further arranged on the rack; the push-pull device comprises a push-pull hydraulic cylinder, a hydraulic system B matched with the push-pull hydraulic cylinder, guide tracks and a bearing plate, the push-pull hydraulic cylinder is horizontally arranged on the surface of a work platform of the rack, the guide tracks are laid on the surface of the work platform of the rack, the bearing plate is glidingly mounted on the guide tracks, the push-pull hydraulic cylinder drives the bearing plate to move along the guide tracks, the bearing plate is used for accommodating rollers, and a photoelectric switch B is further arranged on the surface of the work platform of the rack. By means of the roller dismounting device for the sizing mill, the working efficiency for roller dismounting is improved, the labor intensity is reduced, and the safety coefficient of work is increased.

Description

technical field [0001] The invention relates to the technical field of sizing machines, in particular to a sizing machine roll disassembly device and a disassembly method. Background technique [0002] The sizing machine is the steel pipe rolled out of the pilger rolling mill, which is reheated by the walking furnace and then sizing and rolling to obtain a high-precision external dimension. The sizing mill roll is the main tool for sizing. It is supported and rotated by the bearings in the sizing roll box to ensure the correct position of the roll in the frame. At present, the structure of the roll dismounting device of the sizing mill is mainly to install a hydraulic cylinder, a hydraulic jack or a manual mechanical jack on the gantry frame, and the roll is disassembled or installed from the roll shaft by the hydraulic cylinder, hydraulic jack or manual mechanical jack. These sizing mill roll dismounting devices need to hang the roll obliquely on the shelf during the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B31/08
Inventor 姜帅
Owner HANDAN XINXING SPECIAL TUBING CO LTD
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