This machine requires the use of the following patented technologies:99 2 37340.9 divided roller main drive roller type plate leveling machine.

This machine adopts a non parallel roller arrangement and adjustable edge rollers, and adopts a linear gradual pressure reduction correction method, which conforms to the steel plate correction law.It should have advanced technology, simple and convenient operation, high leveling accuracy, wide process range, high degree of automation, industrial computer display and control, etc. The work console can complete all leveling work and has memory function.

This machine consists of a frame, a work roll device, a support roll device, a transmission device, a pressing mechanism, a balancing device, and a movable crossbeamThe system consists of a fixed crossbeam, main transmission device, measuring limit device, gear stop device, lubrication system, hydraulic system, electrical and microcomputer control system.

（1） Rack, movable crossbeam, lower crossbeam, connecting beam, main gearbox

The rack requires a welded frame structure with good overall rigidity and internal closure for correction force. Rack, movable crossbeam, lower crossbeamSelection of beams, connecting beams, and main gearbox Q235-ASteel plate, subjected to overall stress relief annealing treatment after welding. Welding components in normal useThe item will be used until the machine is scrapped. The leveling machine is required to have the characteristics of high load-bearing capacity, high strength, and high precisionThe appearance of the device is flat, the layout is reasonable, the pipeline is neat, and the color of the topcoat is specified by Party A.

（2） Roller assembly

1Work rollsevenThe root consists of two hydraulic lifting edge rollers, and all working rollers in the upper and lower rows are equally efficient active rollers.

2Work roll device: The material requirement for the work roll is60CrMoV(The blank requirement is from Wuhan)471Provided by the factory or Zhongyuan Special Steel Factory），Request quenching and tempering treatmentHB255～302, surface quenching hardnessHS85～95Depth of hardened layer6～10mmThe roughness is0.8μm.

3Process: Material cutting→forge→Normalize after forging→Rough car→Quenching and tempering→finish→SURFACE QUENCHING→→Fine grinding to the surfacenoodlestolerance h6Surface roughness Ra0.8μ m.

Processing manufacturer: Blank (required to be made by Jiyuan Special Steel, Wuhan) 471 Provided by the factory）Processing (requires to be done by Wuhan) 471 FactoryHubei Heavy Machinery Processing）Heat treatment quenching and tempering (should be carried out by Wuhan Heat Treatment Plant and Wuhan Iron and Steel)）； Requirements after initial and final processingPerform two non-destructive tests on the work roll,And provide copies of material inspection reports, heat treatment inspection reports, non-destructive testing reports, etc.

4Work roll（Including bearings）The axial positioning of the roller seat is set at the end of the universal joint, and all roller necks are required to be used

The new type of rolling mill special rolling bearing is produced by Wafangdian Bearing Co., Ltd. Requirements for selecting components for the connection of work roll bearings Structure Design、Manufacturing ensures reliability、durable，Fully consider the axial and radial loads and deformations borne by the work roll.Accurate adjustment and positioning of the gap and angle between the upper and lower work rolls、Efficient，Good precision of guiding mechanism、High stability.Modular design is required, with the lower roller bearing seat and frame bolted together, allowing for quick disassembly and assembly of the lower roller from the frame, making it easy to maintain and repair.

5The upper and lower support rollers adopt a whole row structure, and the upper and lower support rollers require a diagonal iron adjustment mechanism to manually adjust their upper and lower positionsPosition to ensure good contact with the work roll. The material requirements for the supporting roller are 42CrMoEnsure the stability and accuracy of equipment operationThe characteristic of long lifespan. The work roll seat and the support roll seat will not interfere with the rollers, and the strength of the support roll adjustment mechanism is high, Easy to adjust and reliable to lock.

6It takes about two hours to quickly replace the supporting roller group, greatly reducing online maintenance time.

7The material requirements for the supporting roller are 42CrMoThe requirements for quenching and tempering treatment are met HB255～286Require surface quenching hardness to reachHS75～85The depth of the hardened layer has reached3.5～4.5mm, press《JB/T3164-1994 Technical Conditions for Roller Plate Leveling Machine.

8The roller processing technology process is: forging→rough turning→Quenching and tempering→Fine car→Surface quenching→Fine grinding to surface tolerance h6,

Surface roughness Ra0.8μm.

Manufacturer's requirement: The supporting roller ring should be selected from the bearing blank of Wafangdian, and the core seat should be self machined.