Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Pressure-maintaining and regulating hydraulic control system of roll balance gear

A technology of hydraulic control system and balance device, which is applied in the direction of metal rolling, metal rolling, metal rolling rack, etc., which can solve the problems of pressure leakage, no pressure protection function, and pressure increase, so as to prevent the pressure from suddenly rising , protection of safe production, complete and rapid pressure relief

Inactive Publication Date: 2012-01-25
TAIYUAN HEAVY IND
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This control circuit basically meets the pressure maintaining and adjustment requirements of the roll device, and the adjustment and pressure maintaining share a control circuit, which has disadvantages: No. 1 electromagnetic reversing valve 12 is a two-position four-way spring return reversing valve, and the balance hydraulic cylinder 1 is in the In the roll balance device, when the piston rod 3 drives the roll device to run to the rolling center line, it must run a full stroke every time, and there is no pause function in the middle of the stroke, which brings inconvenience to equipment debugging; although there is an accumulator 16 in the control circuit to provide Supplement the oil source. If the hydraulic station stops running for a long time, the pressure in the piston rod chamber of the balance cylinder 1 will also leak, and the precise position of the roll device cannot be guaranteed, which will affect the rolling hole shape; during the rolling process of the steel pipe, due to The effect of the rolling force may cause the pressure in the piston rod chamber of the balance cylinder 1 to increase, causing the connecting oil pipe of the hydraulic cylinder to rupture or damage other equipment. There is no pressure protection function, which may cause accidents

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
  • Pressure-maintaining and regulating hydraulic control system of roll balance gear
  • Pressure-maintaining and regulating hydraulic control system of roll balance gear
  • Pressure-maintaining and regulating hydraulic control system of roll balance gear

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] like image 3 As shown, a hydraulic control system for maintaining pressure adjustment of a roll balancing device has a balancing hydraulic cylinder 1 with a built-in displacement sensor 2, which consists of a pressure reducing valve 11, a No. No. Ⅰ pressure gauge 15, No. Ⅱ pressure gauge 18 and hydraulic oil pipes form the pressure maintaining circuit of the roll balance device according to the conventional connection method; The valve 20, the relief valve 21 and the hydraulic oil pipe form the adjustment circuit of the roll balance device according to the conventional connection method. The two control circuits can work independently, and the pressure maintaining circuit and the adjusting circuit are separated and associated by the hydraulically controlled one-way valve 22 and the one-way valve 23 . Increase the No. Ⅱ electromagnetic reversing valve 19 to ensure that the roll device stays at any position at any time, and the adjustment is convenient; increase the hyd...

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 a pressure-maintaining and regulating hydraulic control system of a roll balance gear and relates to a hydraulic control system of a steel rolling machine. The pressure-maintaining and regulating hydraulic control system solves the problems of unreliable pressure maintenance, inconvenient equipment debugging and no pressure protection of a control loop in the prior art. The pressure-maintaining and regulating hydraulic control system is characterized in that: a hydraulic control loop comprises a pressure-maintaining loop of the roll balance gear and an adjusting loop of the roll balance gear; the pressure-maintaining loop is formed by connecting a pressure-reducing valve (11), an I-number electromagnetic directional valve (12), an energy accumulator (16), a safety valve (17), an I-number pressure meter (15), an II-number pressure meter (18) and a hydraulic oil pipe according to the conventional connecting method; the adjusting loop is formed by connecting an II-number electromagnetic directional valve (19), a one-way throttle valve (13), a pressure relay (14), a hydraulic locking valve (20), an overflow valve (21) and the hydraulic oil pipe according to the conventional connecting method; and the pressure-maintaining loop and the adjusting loop are separated and associated by using a hydraulic one-way valve (22) and a one-way valve (23).

Description

technical field [0001] The invention belongs to a hydraulic control system of a steel rolling machine, in particular to a hydraulic control system that needs to be pressed and maintained during the rolling process and adjusted in a non-rolling state in the steel rolling equipment. Background technique [0002] In steel rolling machinery and equipment, many roll balancing devices are hydraulically controlled, which need to be pressed and maintained in the rolling state. When the roll is installed for the first time or a new roll is replaced, pressure adjustment and position adjustment control are required. For example, the balance device of the roll in the steel pipe rolling mill and the balance device of the upper roll in the straightening machine are all hydraulic control mechanisms, which need to be pressed and maintained during rolling, and adjusted and controlled in the non-rolling state. [0003] The roll balance device in the steel pipe rolling mill such as figure 1 S...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B21B31/16
Inventor 张英婵
Owner TAIYUAN HEAVY IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products