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Preparation method of clearance-adjusting eccentric shaft for hot-rolled steel section flying shear cutting edge

A technology of eccentric shaft and flying shears, which is applied in the field of metallurgical hot rolling technology, and can solve problems such as difficult to achieve precise adjustment of the side clearance of the cutting edge

Active Publication Date: 2012-05-02
WISDRI ENG & RES INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During on-site installation, debuggers often observe and measure the coincidence and backlash of the upper and lower cutting blades by turning the crank, but it is difficult to achieve precise adjustment of the backlash of the cutting blades
Therefore, if the eccentricity design is unreasonable for the horizontal and vertical side clearance of the cutting edge, it is difficult to make up for it through on-site and machining methods

Method used

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  • Preparation method of clearance-adjusting eccentric shaft for hot-rolled steel section flying shear cutting edge
  • Preparation method of clearance-adjusting eccentric shaft for hot-rolled steel section flying shear cutting edge
  • Preparation method of clearance-adjusting eccentric shaft for hot-rolled steel section flying shear cutting edge

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Embodiment Construction

[0061] The present invention will be further described below in conjunction with the embodiments and accompanying drawings.

[0062] The preparation method of the hot-rolled section steel flying shear machine cutting edge gap adjustment eccentric shaft provided by the present invention includes the processing of the eccentric shaft 8 and the matching adjusting disc 3, connecting rod 5, connecting bracket and end cover 9, see figure 2 and image 3 ,specifically is:

[0063] (1) Adjust the processing of disc 3:

[0064] Holes are evenly opened around the disc body of the adjusting disc, and an arc-shaped long hole with both ends being arc-shaped and two sides being straight lines is opened in the middle of the disc body;

[0065] (2) Machining of eccentric shaft 8:

[0066] The eccentric shaft 8 is divided into four sections for processing, which are processed sequentially from left to right, wherein: the first section of the shaft body is the front end of the eccentric sha...

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Abstract

The invention discloses a preparation method of a clearance-adjusting eccentric shaft for a hot-rolled steel section flying shear cutting edge, which comprises steps as follows: an eccentric shaft, a matched adjusting disk, a connecting rod, connecting brackets and an end cover are processed, and the adjusting disk, the left connecting bracket and the front end of the eccentric shaft are connected together through bolt components; the second section of the eccentric shaft and the hole of the left connecting bracket form a hole fit, and the hole clearance ensures the eccentric shaft to normally rotate in the hole; the third section of the eccentric shaft is supported by two bearings in the stepped hole of the connecting rod; the end cover, the right connecting bracket and the back end of the eccentric shaft are connected together through bolt components; and an axially fixed spacer ring is respectively installed in the clearances between the left and right connecting brackets and the connecting rod, so that the two bearings are axially fixed, thereby implementing the preparation of the clearance-adjusting eccentric shaft for a hot-rolled steel section flying shear cutting edge. The invention is easy to implement, has the advantages of wide application range and the like, and can be used as a useful design complement for design of the flying shear crank-link mechanism.

Description

technical field [0001] The invention relates to the technical field of metallurgical hot-rolling technology, in particular to a method for preparing an eccentric shaft for adjusting the blade gap of a hot-rolled section steel flying shear. Background technique [0002] Flying shear is one of the important equipments in the steel rolling production line. It is arranged in front of the finishing rolling unit. It is used for cutting and breaking the head and tail of the rolled steel during hot rolling of section steel. The quality of its work performance directly affects the production efficiency of the rolling line and the quality of the product cut. With the development of continuous rolling mills, flying shears have been used more and more widely. [0003] The hot-rolled section steel flying shear generally adopts a crank rocker mechanism. Its main working principle is: the motor drives the pinion to rotate through the reducer, and the pinion is synchronously driven to rota...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00G06F17/50B23D25/02
Inventor 严国平许燚罗新华
Owner WISDRI ENG & RES INC LTD
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