CN201659145U

CN201659145U - Roller-system axial locking structure of section mill

Info

Publication number: CN201659145U
Application number: CN2010201574316U
Authority: CN
Inventors: 张芳红
Original assignee: Tianjin Zhongzhong Science Technology and Engineering Co Ltd
Current assignee: Tianjin Zhongzhong Science Technology and Engineering Co Ltd
Priority date: 2010-04-14
Filing date: 2010-04-14
Publication date: 2010-12-01
Anticipated expiration: 2020-04-14

Abstract

The utility model discloses a roller-system axial locking structure of a section mill, which comprises bearings, a bearing seat, loop rings, a calibrated disc and an end cap. The bearings and the bearing seat support rollers, each loop ring is fixed on the outer side of each bearing, the calibrated disc is fixed on the end surface of the outer side of the loop ring, the end cap is fixed on the bearing seat, the inner diameter of the end cap is sleeved on the outer diameter of the calibrated disc, and an anti-rotation pin is disposed between the calibrated disc and the end cap. The roller-system axial locking structure of a section mill has the advantages that during an H-shaped profile steel rolling process, the roller-system axial locking structure prevents axial movement of a roller system during a steel passing process due to impact, stops problems of product quality due to unaligned hole patterns, and increases yield. Simultaneously, the roller-system axial locking structure protects the roller bearings, prolongs service life of the rollers, increases rolling efficiency, reduces cost to the utmost extent, and increases profits.

Description

The roller of shape rolling mill is the axial locking structure

Technical field

The roller that the utility model relates to a kind of shape rolling mill equipment, particularly shape rolling mill is the axial locking structure.

Technical background

At present, along with the variation in China steel products market, by having good mechanical property and progressively having substituted in the hot rolling ribbon steel at the H of architectural extensive use shaped steel.Domestic H shaped steel rolling line major part is import, and this medium-sized H shape rolling mill belongs to the memorial archway milling train of remaining silent, and the structure of this medium-sized H shape rolling mill comprises: roller system; The horizontal roller screwdown gear; Roll balance gear; Changing rig and memorial archway assembling.Roller system is very important part in the shape rolling mill.

As shown in Figure 1, described roller is to comprise: roll 1; Be arranged on the bearing 2 and the bearing block 11 of roll 1 both sides shaft end; Be contained in bearing 2 outer external thread sleeve 3 and the gear wheels 5 that put; Be tightened on the inner screw sheath 4 on the external thread sleeve 3; The collar 7 is pressed on bearing 2 end faces, and securing member is fixed as one the collar 7, gear wheel 5 and external thread sleeve 3; Nut 6 is tightened on the collar 7 external diameters; On the collar 7 outside end faces, be fixed with dial 8; End cap 10 internal diameters are sleeved on dial 8 external diameters, and end cap 10 is fixed on the bearing block 11; Be arranged on the connecting ring 12 and the baffle ring 13 of bearing 2 both sides.

There is following defective in roller system in the prior art shape rolling mill: in the operation of rolling, and when the shaped steel guide-in roller is, the certain impulsive force that can bring, making roller is axial float, has caused the skew of pass relative position, has increased the wearing and tearing of roller system, influence of rolled efficient; The skew of pass simultaneously can bring dimensional accuracy of products, surface quality and performance to have deviation, has a strong impact on the quality and the economic benefit of product.

Summary of the invention

The purpose of this utility model is to overcome the deficiency of above-mentioned technology, provides a kind of when the shaped steel guide-in roller is, can prevent that roller from being axial float, guarantees the rolling of sectional iron quality, prolongs roll campaign, and the roller that improves the shape rolling mill of rolling efficiency is the axial locking structure.

The technical scheme that solves the problems of the technologies described above is: a kind of roller of shape rolling mill is the axial locking structure, and described roller is that the axial locking structure comprises: the bearing of back-up roll and bearing block; Be fixed on the collar in the bearing outside; Be fixed on the dial on the end face of the collar outside; Be fixed on the end cap on the bearing block, described end cap internal diameter is sleeved on the dial external diameter, is provided with stop pin between described dial and end cap.

Effect of the present utility model is: use this structure in the operation of rolling of H shaped steel, owing to impact the axial float of the roller system caused, prevented that pass from not aligning and the product quality problem that brings reduces yield rate when eliminating steel.Protect roll bearing simultaneously, prolonged the service life of roll, improved rolling efficiency.Reduce cost significantly, improve profit.

Description of drawings

Fig. 1 is the axial arrangement cutaway view of prior art H shape rolling mill central roll system;

Fig. 2 is that the utility model roller is the axial locking structure;

Fig. 3 is the left view of Fig. 2;

Fig. 4 is an X portion enlarged drawing among Fig. 2;

Fig. 5 is a Y portion enlarged drawing among Fig. 3.

" sequence number explanation in the accompanying drawing "

1: roll; 2: bearing; 3: external thread sleeve; 4: inner screw sheath; 5: gear wheel; 6: nut; 7: the collar; 8: dial; 9: stop pin; 10: end cap; 11: bearing block; 12: connecting ring; 13: baffle ring.

The specific embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 2 is that the utility model roller is the axial locking structure; Fig. 3 is the left view of Fig. 2; Fig. 4 is an X portion enlarged drawing among Fig. 2; Fig. 5 is a Y portion enlarged drawing among Fig. 3.

As shown in Figure 2, described roller is to comprise: roll 1; Be arranged on the bearing 2 and the bearing block 11 of roll 1 both sides shaft end; Be contained in bearing 2 outer external thread sleeve 3 and the gear wheels 5 that put; Be tightened on the inner screw sheath 4 on the external thread sleeve 3; The collar 7 is pressed on bearing 2 end faces, and securing member is fixed as one the collar 7, gear wheel 5 and external thread sleeve 3; Nut 6 is tightened on the collar 7 external diameters; On the collar 7 outside end faces, be fixed with dial 8; End cap 10 internal diameters are sleeved on dial 8 external diameters, and end cap 10 is fixed on the bearing block 11; Be arranged on the connecting ring 12 and the baffle ring 13 of bearing 2 both sides.

It is the axial locking structure that the utility model is fastened the roller that a kind of shape rolling mill is provided at described roller, and described roller is that the axial locking structure comprises: the bearing 2 of back-up roll 1 and bearing block 11; Be fixed on the collar 7 in bearing 2 outsides; Be fixed on the dial 8 on the collar 7 outside end faces; Be fixed on the end cap 10 on the bearing block 11, described end cap 10 internal diameters are sleeved on dial 8 external diameters.

Between described dial 8 and end cap 10, be provided with stop pin 9.

The position of described stop pin 9 is: evenly be provided with semi-circle pin holes every 12 ° on dial 8 outer rings; Inner ring at described end cap 10 has 6 semi-circle pin holes, and the semi-circle pin holes on the size of the semi-circle pin holes on end cap 10 inner rings and dial 8 outer rings is measure-alike.The position of first semi-circle pin holes differs 2 ° than the position of first semi-circle pin holes on dial 8 outer rings on described end cap 10 inner rings, and the position of all the other 5 semi-circle pin holes increases progressively with 2 ° on end cap 10 inner rings; In the pin-and-hole that end cap 10 and dial 8 are formed, insert stop pin 9.

Below use of the present utility model is illustrated.

To shown in Figure 5, milling train axial locking structure of the present utility model is on the axial device of adjusting of original roller system, will evenly beat semi-circle pin holes every 12 ° on dial 8 outer rings that be connected on the collar 7 as Fig. 2; And the inner ring that will be fixed on the end cap 10 on the bearing block 11 is made a call to 6 semi-circle pin holes altogether, on end cap 10 inner rings first semi-circle pin holes position and first semi-circle pin holes position on dial 8 outer rings differ 2 °, promptly on 14 ° of positions of end cap 10, beat semi-circle pin holes, the position of all the other 5 semi-circle pin holes on the end cap 10 increases progressively with 2 °, promptly beats semi-circle pin holes on 16 °, 18 °, 20 °, 22 °, 24 ° positions.

When breaker roll was finely tuned, end cap 10 can form a pin-and-hole at an arbitrary position with the semicircle orifice of dial 8, inserts stop pin 9 then.

Described stop pin 9 is fixed dial 8, be attached thereto the collar 7 that connects, gear 5, external screw thread 3 also by relative fixed, also be fixed with the collar 7, gear 5, external screw thread 3 friction tight bearings 2, bearing 2 is in case fixing, connecting ring 12 and baffle ring 13 also can't axial floats, thereby roll 1 axially relatively also can't move, so that has reached the purpose of axial locking.This structure is reducing roll wear, prolonged roll service life, when having improved rolling efficiency, has eliminated that pass does not align and the product size precision brought, the problem of aspects such as surface quality and performance requirement.

Claims

1. the roller of a shape rolling mill is the axial locking structure, and described roller is that the axial locking structure comprises: the bearing (2) of back-up roll (1) and bearing block (11); Be fixed on the collar (7) in bearing (2) outside; Be fixed on the dial (8) on the end face of the collar (7) outside; Be fixed on the end cap (10) on the bearing block (11), described end cap (10) internal diameter is sleeved on dial (8) external diameter, it is characterized in that, is provided with stop pin (9) between described dial (8) and end cap (10).

2. the roller according to shape rolling mill described in the claim 1 is the axial locking structure, it is characterized in that, the position of described stop pin (9) is: evenly be provided with semi-circle pin holes every 12 ° on dial (8) outer ring; Inner ring at described end cap (10) has 6 semi-circle pin holes, and the semi-circle pin holes on the size of the semi-circle pin holes on end cap (10) inner ring and dial (8) outer ring is measure-alike; The position of first semi-circle pin holes differs 2 ° than the position of first semi-circle pin holes on dial (8) outer ring on described end cap (10) inner ring, and the position of all the other 5 semi-circle pin holes increases progressively with 2 ° on end cap (10) inner ring; In the pin-and-hole that end cap (10) and dial (8) are formed, insert stop pin (9).