Online adjustment method for roller transmission precision of seamless steel tube cold-rolling mill

An adjustment method and transmission precision technology, which is applied in the direction of rolls, rolling mill control devices, metal rolling racks, etc., can solve the problems of inability to achieve quantification, standardized and standardized operations, high requirements for operating personnel's experience and skills, and inability to achieve meshing parts, etc. , to achieve the effect of promoting the construction of equipment function accuracy, convenient calculation, and smooth process steps

Active Publication Date: 2020-11-17
宝武特种冶金有限公司
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fourth, the cold rolling mill has many rolling specifications. A rolling mill usually has 3 to 5 rolling specifications. Every time after changing the specification or changing the roll device, the adjustment and correction of the tooth side clearance must be carried out, and the stand drive Under the premise that the rack basically does not change, the gear wear equivalent of each set of roll devices is completely different, and the involute between the teeth is also different, so the adjustment and correction work is relatively difficult, and it is impossible to take into account the meshing parts
[0008] In order to ensure that the meshing clearance of the tooth side meets the technical requirements, a certain amount of meshing clearance can only be reserved based on experience as the correction equivalent of the accumulated error. Although it can meet the production requirements, it requires high experience and skills of the operators, and cannot be quantified. Standardized work

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Online adjustment method for roller transmission precision of seamless steel tube cold-rolling mill
  • Online adjustment method for roller transmission precision of seamless steel tube cold-rolling mill

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Taking the LG-220H two-roller periodic seamless steel pipe cold rolling mill with a product specification of φ150-220mm as an example, and replacing the roll device with a product specification of φ208*12mm as an example, the calibration of the tooth side meshing clearance of the rolling mechanism is implemented on site. The working steps included in the process are: job preparation, actual measurement of wear equivalent, positioning of working frame (front and rear limit positions), measurement and calculation of tooth side meshing clearance, online adjustment and correction of tooth side meshing clearance, tooth side meshing clearance inspection, etc. The standard clearance of tooth side meshing is 0.15±0.02mm.

[0071] 1) The operation preparation process includes: disclosure of safety technology, implementation of on-site safety precautions, inspection and maintenance operation registration and listing contact, preparation of tooling equipment, etc. → the working fra...

Embodiment 2

[0081] Taking the LG-150H two-roller periodic seamless steel pipe cold rolling mill with a product specification of φ110-150mm as an example, and replacing the roll device with a finished product specification of φ110*7.5mm as an example, the calibration of the tooth side meshing gap of the rolling mechanism is carried out on site. The working steps included in the process are: job preparation, actual measurement of wear equivalent, positioning of working frame (front and rear limit positions), measurement and calculation of tooth side meshing clearance, online adjustment and correction of tooth side meshing clearance, tooth side meshing clearance inspection, etc. The standard clearance of tooth side meshing is 0.12±0.02mm.

[0082] 1) The operation preparation process includes: disclosure of safety technology, implementation of on-site safety precautions, inspection and maintenance operation registration and listing contact, preparation of tooling equipment, etc. → the working...

Embodiment 3

[0092] Taking the LG-110H two-roller periodic seamless steel pipe cold rolling mill with a finished product specification of φ76-110mm as an example, the daily maintenance of the roll device with a specification of φ90*6.5mm is taken as an example, and the calibration of the tooth side meshing gap of the rolling mechanism is carried out on site . The working steps included in the process are: job preparation, actual measurement of wear equivalent, positioning of working frame (front and rear limit positions), measurement and calculation of tooth side meshing clearance, online adjustment and correction of tooth side meshing clearance, tooth side meshing clearance inspection, etc. The standard clearance of tooth side meshing is 0.10±0.02mm.

[0093] 1) The operation preparation process includes: disclosure of safety technology, implementation of on-site safety precautions, inspection and maintenance operation registration and listing contact, preparation of tooling equipment, et...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an online adjustment method for the roller transmission precision of a seamless steel tube cold-rolling mill. The online adjustment method comprises the following steps that (1) operation preparation is conducted, specifically, a working rack is positioned in the middle of a machine base, and equipment is powered off; (2) wear equivalent actual measurement is conducted; (3)a rear limit station of the working rack is positioned; (4) gear side meshing clearance is calculated; (5) the gear side meshing clearance of the rear limit station is adjusted and corrected on line;(6) a front limit station of the working rack is positioned; (7) gear side meshing clearance is calculated; (8) the gear side meshing clearance of the front limit station is adjusted and corrected online; and (9) the gear side meshing clearance is checked on line. According to the online adjustment method, differential correction of the gear side meshing clearances of different stations is achieved, the technical requirements for adjustment and correction of the gear side meshing clearances of different specifications and different abrasion equivalents are met, equipment function precision construction is promoted, and the operation precision of a roller device and even a rolling mechanism is guaranteed.

Description

technical field [0001] The present invention relates to a production method of seamless steel pipes, in particular to an on-line adjustment method for roll transmission accuracy of seamless steel pipe cold rolling mills, and is especially suitable for two-roller periodical seamless steel pipe cold rolling mills with specifications of φ38 mm and above for rolled products Adjustment of synchronous accuracy (engagement gap) between the end gear of the roll device and the drive rack of the frame. Background technique [0002] Seamless steel pipes are common metallurgical metal products. The seamless steel pipe cold rolling technology has become the main method of seamless steel pipe production and processing because of its high rolling precision, fast speed, large production capacity, high yield, and easy adjustment of production organization and process technology. [0003] Seamless steel pipe cold rolling production equipment is divided into two-roller type and multi-roller t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B21B31/16B21B37/00
CPCB21B31/16B21B37/00B21B2267/24
Inventor 陈涛
Owner 宝武特种冶金有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap