CN207154409U - Guide roller structure on kink is found in a kind of pre- finish rolling of high-speed rod - Google Patents

Abstract

The utility model discloses a kind of pre- finish rolling of high-speed rod and founds guide roller structure on kink, including upper deflector roll, roller axle and 4 disk angular contact bearings, upper deflector roll is fixedly connected with roller axle, remote, the near bearing end of described roller axle is connected by 2 disk angular contact bearings with overcoat respectively, and upper guide roller surface cross section is plane；Upper deflector roll diameter increases to 140mm, and length increases to 100mm.The utility model extends deflector roll service life on vertical kink, improves production efficiency, reduces production accident rate, the upper guide roller surface polishing difficulty of reductions, and precision and efficiency are repaired in raising.

Description

Guide roller structure on kink is found in a kind of pre- finish rolling of high-speed rod

Technical field

It the utility model is related to a kind of pre- finish rolling of high-speed rod and found guide roller structure on kink.

Background technology

The domestic high-speed wire production line production following specification outlet linear velocities of Φ 6.5mm can be stablized in 95m/s, Φ at present Outlet linear velocity can be stablized in 85m/s during the production rolling of 8mm specifications screw-thread steel.It is to ensure production work that pre-finishing mill group, which founds kink, The capital equipment of skill adjustment, run at high speed production in rotation, heavy load condition, its middle roller at a high speed when standing deflector roll work on kink Raw larger abrasion, and participate in it is very big by radial load during process adjustments, so load characteristic be at a high speed, heavy duty.Because vertical kink category In high speed, heave-load device, bearing often damages phenomenon.Often roller locking causes piling of steel after bearing damage, causes to set It is standby to be not normally functioning influence production efficiency.Upper deflector roll is production expendable part, and to be cost-effective, repair welding, polishing are taken in scene Mode carries out secondary use, crosses steel surface due to upper deflector roll and is designed using groove, can not ensure radian and surfacing after polishing, Repair difficulty and intensity is very big, influence secondary using effect.The phenomenon that deflector roll damages on common vertical kink has two kinds, and first is axle Damage is held, can not be run well.Second is upper guide roller surface serious wear, can not meet technique requirement.

Utility model content

Based on above weak point, the utility model provides a kind of pre- finish rolling of high-speed rod and founds guide roller structure on kink, increases Add the bearing capacity of bearing, it is therefore an objective to extend service life of equipment, improve production efficiency.

Technology is as follows used by the utility model：Guide roller structure on kink is found in a kind of pre- finish rolling of high-speed rod, including upper Deflector roll, roller axle and 4 disk angular contact bearings, upper deflector roll are fixedly connected with roller axle, remote, the near bearing end point of described roller axle It is not connected by 2 disk angular contact bearings with overcoat, upper guide roller surface cross section is plane；The upper a diameter of 140mm of deflector roll, length are 100mm。

The advantages of the utility model and beneficial effect：Extend deflector roll service life on vertical kink, improve production efficiency, drop Low production accident rate, guide roller surface polishing difficulty in reduction, improves repairing precision and efficiency.

Brief description of the drawings

Fig. 1 is original upper deflector roll assembling schematic diagram；

Fig. 2 is upper deflector roll assembling schematic diagram of the present utility model；

Embodiment

Below according to accompanying drawing citing, the utility model is described in further detail：

Embodiment 1

As shown in Fig. 2 guide roller structure on kink, including upper deflector roll 1, roller axle 4 and 4 are found in a kind of pre- finish rolling of high-speed rod Disk angular contact bearing 3, upper deflector roll 1 are fixedly connected with roller axle 4, and remote, the near bearing end of described roller axle 4 passes through 2 disks respectively Angular contact bearing 3 is connected with overcoat 7, and the upper areal cross-section of deflector roll 1 is plane；Upper 1 a diameter of 140mm of deflector roll, length are 100mm.It was that 1 disk deep groove ball bearing 5 (model 6209) replaces with originally in the position that bearing capacity is larger according to bearing damage position 2 disk angular contact bearings 3 (model 162250MB), carrying position distal end was that 1 disk deep groove ball bearing 5 (model 6209) replaces with 2 originally Disk angular contact bearing 3 (model 162250LB).Bearing designation 162250MB, 162250LB is the high-speed bearing used on roller case, Material, precision and bearing capacity are much larger than the deep groove ball bearing of model 6209, and add loaded area, can ensure completely Bearing stable operation under conditions of high speed and heavy duty, while remain intrinsic assembling and lubrication form.The chi of upper deflector roll Very little configuration aspects, deflector roll roller diameter in increasing, rolled piece hits follow-up inlet of rolling mill guide and guard after avoiding abrasion；Deflector roll is grown in increase Degree, avoiding deflector roll end face from gap occur with vertical frame living causes to press from both sides steel；Upper deflector roll is changed to straight by the form of surface groove 6 before Roll form, surface polishing difficulty is reduced, facilitates manual repair secondary use under line, improves repairing precision and efficiency.After optimization Upper deflector roll assembly reached it is easy to maintenance, it is effective guarantee equipment at a high speed, heavy duty produce, increase the service life, improving Production efficiency, cost-effective purpose.

Claims (1)

1. guide roller structure on kink, including upper deflector roll, roller axle and 4 disk angular contact bearings are found in a kind of pre- finish rolling of high-speed rod, on Deflector roll is fixedly connected with roller axle, it is characterised in that：Remote, the near bearing end of described roller axle passes through 2 disk angular contact axles respectively Hold and be connected with overcoat, upper guide roller surface cross section is plane；The upper a diameter of 140mm of deflector roll, length 100mm.