CN201850293U

CN201850293U - Roll collar of heating furnace

Info

Publication number: CN201850293U
Application number: CN2010202862560U
Authority: CN
Inventors: 贺梦军
Original assignee: Lysteel Co Ltd
Current assignee: Lysteel Co Ltd
Priority date: 2010-08-05
Filing date: 2010-08-05
Publication date: 2011-06-01
Anticipated expiration: 2020-08-05

Abstract

The utility model discloses a roll collar of a heating furnace. A roller body is evenly provided with a first roll collar, a second roll collar, a third roll collar and a forth roll collar, wherein each roll collar is divided into 2-4 sections, and a plurality of expansion gaps are arranged between every two adjoining sections. Each section of each roll collar is provided with a middle spoke and two outer-edge spokes, the inclined angles between the middle spokes and the axis line of the roller body are alpha, the inclined angles between the edge lines of the expansion gaps on each roll collar and the axis line of the roller body is beta, and the expansion gaps on the middle two roll collars which are fixedly connected with the roller body and the expansion gaps on the outer two roll collars which are fixedly connected with the roller body are staggered with each other. Therefore, after the roll collar of the heating furnace is used, the quality of a product can be improved, the service life of the furnace roller can be prolonged, the running vibration of the furnace roller can be reduced, the impact can be eliminated, the driving is stable, and the popularization value is extremely high.

Description

A kind of heating furnace roller collars

Technical field

The utility model relates to the heating furnace roller collars in the stove (continuous tunnel furnace) at the bottom of the noiseless roller of the employed longevity of a kind of casting and rolling process.

Background technology

All use (maybe need be equipped with) collars on the heating furnace roller that is adopted in casting and rolling process, existing furnace roller collars has monoblock type collars, split type collars and split-type collars.The monoblock type collars ftractures easily, and the collars behind the cracking very easily is out of shape; Split type collars is loosening easily, and the split-type collars falls lobe easily, cracking, loosening and fall lobe and will directly cause beating of furnace roller, also directly influence the normal use of furnace roller, because of prominent multiple load causes can becoming flexible as the key cooperation of transmission agency, keyway is broadened, secondly loosening easily because of the elasticity catcher, even tear, make furnace roller when running since vibration steadily not reach noise big.And described split-type collars integral body is divided into six lobes, every lobe welds with two bar spokes, dilatation joint between every lobe is a straight line and parallel with the furnace roller axis, when each dilatation joint of heating slab (or steel billet) process, load reduces 1/4 suddenly, cause that increasing suddenly of load die-off, spoke (muscle) section that removes this collars and body of roll weld is a strip, the length direction of spoke is parallel with the furnace roller axis, vertical with loading direction ... that this structure formation is least stable, need often to change furnace roller, cause great waste.

Summary of the invention

The purpose of this utility model is to provide a kind of heating furnace roller collars that prolongs furnace roller work-ing life, improves furnace roller running operating mode.

For achieving the above object, employing technical scheme of the present utility model is: described a kind of heating furnace roller collars, on the body of roll, evenly be furnished with first collars, second collars, the 3rd collars and the 4th collars, first collars, second collars, the 3rd collars and the 4th collars all are divided into N lobe (integers of N=2～4), dilatation joint are arranged every adjacent two between debating.

Whenever debating on first collars, second collars, the 3rd collars and the 4th collars has spoke outside a middle interray and two limits, and middle interray becomes the α angle with the axial line of the body of roll.The edge line of first dilatation joint on second dilatation joint on first collars and the 4th collars and second collars and the 3rd collars becomes the β angle with the axial line of the body of roll; Second dilatation joint on first collars and the 4th collars misplaces each other with first dilatation joint on second collars and the 3rd collars, and first dilatation joint and second dilatation joint all be uniform distribution, and described α=45-90 °, β=7-60 °.

Adopt a kind of heating furnace roller collars that as above technical scheme provides compared with prior art, its technique effect is:

1. thoroughly eliminate the roll marks that causes because of dilatation joint, improved quality product;

2. improve 5～10 times of furnace roller work-ing lifes, thoroughly eliminate the lobe phenomenon;

3. reduced the furnace roller operational shock, eliminated and impact, stable drive, noiseless;

4. reduced the loss of web member.

Description of drawings

Fig. 1 is the scheme of installation of a kind of heating furnace roller collars described in the utility model on shaft, also is Figure of abstract of the present utility model.

Fig. 2 is the F-F line cross-sectional schematic along Fig. 1, also is the assembly relation synoptic diagram of each collars and shaft.

Fig. 3 is the synoptic diagram that concerns between shaft, collars, refractory materials and the steel billet.

Fig. 4 is the transmission synoptic diagram that is equipped with the heating furnace roller of furnace roller collars.

Embodiment

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

As shown in Figure 1, 2, first collars 8, second collars 81, the 3rd collars 82 and the 4th collars 83 all are divided into N lobe (integers of N=2～4), shown in this case: first collars 8, second collars 81, the 3rd collars 82 and the 4th collars 83 all are divided into 3 lobes, this 3 lobe is layout evenly, also can non-homogeneous layout, between every adjacent two lobes, the first dilatation joint 8B or the second dilatation joint 8B ' are being arranged.The described first dilatation joint 8B and the second dilatation joint 8B ' had both guaranteed the thermal expansion slit of the every lobe of each collars, can improve the intensity of each lobe again to greatest extent.

As shown in Figure 2, three spokes are arranged: spoke 8D and 8E outside middle interray 8C and two limits on each lobe on first collars 8, second collars 81, the 3rd collars 82 and the 4th collars 83, middle interray 8C in three spokes becomes α angle (α=45～90 °) with the axial line of the body of roll 5, the thermal expansion direction of middle interray 8C may command first collars 8, second collars 81, the 3rd collars 82 or the 4th collars 83 (extending) toward both sides, and two spoke 8D and 8E are used for accommodate thermal expansion outside the limit, guarantee the strength of connection of each collars and shaft 5

As shown in Figure 1, the edge line of the first dilatation joint 8B on the second dilatation joint 8B ' on first collars 8 and the 4th collars 83 and second collars 81 and the 3rd collars 82 not with the axis parallel of the body of roll 5, but become β angle (β=7-60 °).Be to use in pairs when using collars, second collars 81 and the 3rd collars 82 are a pair of promptly, first collars 8 outside the limit and the 4th collars 83 are a pair of, the starting point of the first dilatation joint 8B on intermediary second collars 81 and the 3rd collars 82 is on same axis, first collars 8 outside the limit and the starting point of the dilatation joint 8B ' on the 4th collars 83 are also on same axis, the first dilatation joint 8B on intermediary second collars 81 and the 3rd collars 82 is with first collars 8 of two of outsides and the second dilatation joint 8B ' borrow each other on the 4th collars 83, and the first dilatation joint 8B and the second dilatation joint 8B ' are uniform distribution.Also second dilatation joint and the 8B ' on the first dilatation joint 8B on second collars 81 and the 3rd collars 82 and first collars 8 and the 4th collars 83 directly can be made herring-bone during making, like this when the first dilatation joint 8B and 8B ' carrying of second dilatation joint or disengaging steel billet 7, each collars is all very steady, do not have the unexpected increasing of load or reduce, when guaranteeing steel billet 7 transmissions steadily.

First collars 8, second collars 81, the 3rd collars 82 and the 4th collars 83 all through in outside interray 8C and the limit spoke 8D, 8E be connected with the body of roll 5.

During enforcement, refractory materials 6 (as shown in Figure 3) is housed on the body of roll 5, being coated with between each collars, is not burnt out by high temperature with the protection body of roll 5.As shown in Figure 4, the left end of the tube core 9 in the body of roll 5 links to each other with shaft coupling 3 through left shaft holder 4 (being small bearing bracket 4), and shaft coupling 3 connects electric motor 1 through speed reduction unit 2; The right-hand member of the tube core 9 in the axle body 5 is inserted in right bearing seat 10 (being big bearing support 10), and stretching out on the body of roll 5 of right bearing seat 10 has body of roll end cap 11, swivel joint 12 with pass body of roll end cap 11 backs and link to each other with tube core 9.

Actuating motor 1, drive tube core 9 rotations through speed reduction unit 2 and shaft coupling 3, the rotating band action roller 5 of tube core 9 and be welded in first collars 8 on the body of roll 5 and the 4th collars 83 or second collars 81 and second collars 82 rotate simultaneously, each action to collars can make the steel billet 7 that is placed on it constantly move ahead reposefully.

Claims

1. heating furnace roller collars, on the body of roll (5), evenly be furnished with first collars (8), second collars (81), the 3rd collars (82) and the 4th collars (83), it is characterized in that: first collars (8), second collars (81), the 3rd collars (82) and the 4th collars (83) all are divided into the N lobe, the integer of described N=2～4 has first dilatation joint (8B) or second dilatation joint (8B ') every adjacent two between debating; Whenever debating on first collars (8), second collars (81), the 3rd collars (82) and the 4th collars (83) has spoke (8D, 8E) outside a middle interray (8C) and two limits, and middle interray (8C) becomes the α angle with the axial line of the body of roll (5); The axial line of the same body of roll of edge line (5) of first dilatation joint (8B) on second dilatation joint (8B ') on first collars (8) and the 4th collars (83) and second collars (81) and the 3rd collars (82) becomes the β angle; Second dilatation joint (8B ') on first collars (8) and the 4th collars (83) misplaces each other with first dilatation joint (8B) on second collars (81) and the 3rd collars (82); Described first dilatation joint (8B) and second dilatation joint (8B ') all are uniform distribution;

α=45～90 ° wherein, β=7-60 °.