CN107062909A - For the overhang roll of heating furnace and the heating furnace with it - Google Patents
For the overhang roll of heating furnace and the heating furnace with it Download PDFInfo
- Publication number
- CN107062909A CN107062909A CN201611118652.0A CN201611118652A CN107062909A CN 107062909 A CN107062909 A CN 107062909A CN 201611118652 A CN201611118652 A CN 201611118652A CN 107062909 A CN107062909 A CN 107062909A
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- Prior art keywords
- roll shaft
- roll
- heating furnace
- roller
- shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The invention discloses a kind of overhang roll for heating furnace and the heating furnace with it, the overhang roll includes：Roll shaft；Roller head, the roller headgear is located on the roll shaft, be formed with the roller head along the roller head axially through axle hole, the at least one of diameter of the axle hole is less than the external diameter of the shaft shoulder of the roll shaft, the inner surface of the axle hole has groove, there is expansion gap δ between the side wall of the groove and the shaft shoulder of the roll shaft, wherein, the δ is met：1mm≤δ≤5mm.According to the overhang roll for heating furnace of the present invention, the thermal stress between roller head and roll shaft can be reduced, it is ensured that roller head and the integrally-built intensity of roll shaft, moreover, the shaft shoulder on roll shaft can prevent roller head from being slipped from roll shaft, improve the service life of overhang roll.
Description
Technical field
The present invention relates to field of steel metallurgy, more particularly, to a kind of overhang roll for heating furnace and the heating with it
Stove.
Background technology
Heating furnace is widely used in metallurgy industry, and overhang roll is that heating furnace such as side enters side and go out the key of formula walking beam furnace to set
Standby, it is mainly used in conveying and its positioning of the blank in stove when entering stove and coming out of the stove of blank.Overhang roll is stretched in cantilever position
Enter in heating furnace.
In correlation technique, because overhang roll is in hot operation state for a long time in operation, maximum temperature is reached more than 1200
Degree, thus often occur roller head be burnt, the phenomenon such as roller head ftractures, come off, leak, cause overhang roll service life short, shadow
Ring whole production.
The content of the invention
Present invention seek to address that one of technical problem present in prior art.Therefore, it is an object of the present invention to
A kind of overhang roll for heating furnace is proposed, this overhang roll can reduce the thermal stress between roller head and roll shaft, it is ensured that roller head
With the integrally-built intensity of roll shaft, and the shaft shoulder on roll shaft can prevent roller head from coming off, so as to ensure that overhang roll in production
It is safe and reliable in progress, substantially increase the service life of overhang roll.
It is another object of the present invention to propose a kind of heating furnace with above-mentioned overhang roll.
The overhang roll for heating furnace according to a first aspect of the present invention, including：Roll shaft, the roll shaft have first end and
Second end, the first end of the roll shaft is driving end；Roller head, the roller headgear is located on the roll shaft, and the roller head
It is encased on second end of the roll shaft, the roller head and is formed with along the roller head from the first end of the roll shaft
Axially through axle hole, at least one of diameter of the axle hole is less than the external diameter of the shaft shoulder of the roll shaft, the axle
The inner surface of hole portion has groove, has expansion gap δ between the side wall of the groove and the shaft shoulder of the roll shaft, wherein,
The δ is met：1mm≤δ≤5mm.
According to the overhang roll for heating furnace of the present invention, by reserving thermal expansion between roller head groove and the roll shaft shaft shoulder
Gap, can reduce the thermal stress between roller head and roll shaft, it is ensured that roller head and the integrally-built intensity of roll shaft, be additionally, since axle
At least one of diameter of hole portion is less than the external diameter of the shaft shoulder, and the shaft shoulder can prevent roller head from being slipped from roll shaft, it is ensured that cantilever
Roller overall structure is reliable, further increases the service life of overhang roll, has saved man-hour, improves benefit.
In addition, can also have following additional technical feature according to the overhang roll for heating furnace of the present invention：
According to one embodiment of present invention, the δ is further met：δ=3mm.
According to one embodiment of present invention, second end of the roll shaft is provided with cover plate, the cover plate and is formed with
At least one passage.
According to one embodiment of present invention, the passage is circular hole, a diameter of 5mm of the passage.
According to one embodiment of present invention, the cover plate and the roller head are heat-resisting steel part.
According to one embodiment of present invention, key is connected between the roller head and the roll shaft.
According to one embodiment of present invention, the roll shaft is located at the roller head provided with hot ring, the hot ring of screening is hidden
Second end of the neighbouring roll shaft.
According to one embodiment of present invention, the axle hole is coaxially disposed with the roll shaft.
According to one embodiment of present invention, have in the roll shaft and baffle plate, the baffle plate are provided with cavity, the cavity
Positioned at second end of the roll shaft, the overhang roll further comprises：Water inlet pipe, one end of the water inlet pipe is stretched into described
In cavity and the neighbouring baffle plate, wherein the water inlet pipe by least one set of supports support in the cavity, every group of institute
Support member is stated including support base, be formed with the support base centre bore and along centre bore it is circumferentially spaced it is multiple partially
Hole, and the side of the first end of the direction roll shaft in the inclined hole is formed with groove.
Heating furnace according to a second aspect of the present invention, including the outstanding of heating furnace is used for according to above-mentioned first aspect of the invention
Arm roller.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 is the partial schematic diagram of heating furnace according to embodiments of the present invention；
Fig. 2 is the enlarged drawing at the A that Fig. 1 centre circles show；
Fig. 3 is the assembling enlarged drawing of Fig. 1 central rolls head and roll shaft；
Fig. 4 is the enlarged drawing at the B that Fig. 3 centre circles show；
Fig. 5 is the schematic diagram of Fig. 2 central roll heads.
Reference：
100：Overhang roll；101：Furnace wall；102：Blank；
1：Roll shaft；2：Roller head；3：Cover plate；4：Water inlet pipe；5：Base；
61：Sheath；62：Baffle ring；7：Baffle plate；8：Key；8a：Keyway；9：Hide hot ring；
11：First end；12：Second end；13：The shaft shoulder；14：Weld seam；15：Cavity；151：Inner chamber；
21：Axle hole；22：Groove；221：First groove；222：Second groove；
23：Reinforcement；24：Groove；
31：Passage；41：First water pipe；
411：Water inlet；42：Second water pipe；421：Delivery port；
43：Support base；431：Inclined hole；44：Support block；
51：First bearing seat；52：Second bearing seat；53：Reducing motor；54：Swivel joint.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that the orientation or position of the instruction such as term " centre ", " on ", " under "
Relation is, based on orientation shown in the drawings or position relationship, to be for only for ease of the description present invention and simplify description, without referring to
Show or imply that the device or element of meaning there must be specific orientation, with specific azimuth configuration and operation, therefore can not manage
Solve as limitation of the present invention.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
It to be to be joined directly together, can also be indirectly connected to by intermediary, can be the connection of two element internals.For this area
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Overhang roll 100 for heating furnace according to embodiments of the present invention is described below with reference to Fig. 1-Fig. 5.
As Figure 1-Figure 5, the overhang roll 100 for heating furnace of embodiment according to a first aspect of the present invention, including：Roller
Axle 1 and roller first 2.
Roll shaft 1 has the end 12 of first end 11 and second, and the first end 11 of roll shaft 1 is driving end.Roller first 2 is set in roll shaft 1
On, and roller first 2 is encased in be formed with along the axial direction of roller first 2 on the second end 12 of roll shaft 1, roller first 2 from the first end 11 of roll shaft 1 and passes through
Logical axle hole 21, at least one of diameter of axle hole 21 is less than the external diameter of the shaft shoulder 13 of roll shaft 1, the interior table of axle hole 21
Mask fluted 22, has expansion gap δ between the side wall of groove 22 and the shaft shoulder 13 of roll shaft 1, wherein, δ is met：1mm≤δ
≤5mm。
For example, as Figure 1-Figure 5, overhang roll 100 can include roller first 2, roll shaft 1, first bearing seat 51, second bearing
Seat 52, base 5, reducing motor 53 and swivel joint 54, wherein first bearing seat 51, second bearing seat 52, base 5, deceleration electricity
Machine 53 and swivel joint 54 are respectively positioned on the right side of the furnace wall 101 of heating furnace, the i.e. outside positioned at above-mentioned heating furnace.Roll shaft 1 in Fig. 1
Right-hand member be first end 11, the left end of roll shaft 1 is the second end 12, and the first end 11 of roll shaft 1 is driving end, the second end of roll shaft 1
12 be non-transmision end (one end referred to as driving end being joined directly together on roll shaft 1 with reducing motor 53, roll shaft 1 and reducing motor 53
Indirect connected one end is referred to as non-transmision end).
The groove 22 of the inner surface of axle hole 21 can include the spaced groove 222 of first groove 221 and second, roller
Second end 12 of axle 1 is formed with the shaft shoulder 13 of the ring-type projected radially outward.Roller first 2 is set on roll shaft 1 using flip-chip fashion,
Now the first end 11 of roll shaft 1 size compared with the second end 12 of roll shaft 1 is smaller, and roller first 2 is encased in from the first end 11 of roll shaft 1
Second end 12 of roll shaft 1, the end face of the left side of roller first 2 apart from the second end 12 of roll shaft 1 has a location dimension λ, and wherein λ can be with
Meet：λ=5mm, thus, by setting location dimension λ, facilitates the positioning between roller first 2 and roll shaft 1, so as to facilitate roller
Being fixedly connected between first 2 and roll shaft 1.After roller first 2 is had good positioning with the installation of roll shaft 1, the right-hand member of roller first 2 can be adopted with roll shaft 1
With being welded and fixed, weld seam 14, now, the right side wall and the shaft shoulder of the second groove 222 are formed between first 2 right side of roller and roll shaft 1
Expansion gap δ is reserved between 13 on the axis direction of roll shaft 1, wherein, δ is met：1mm≤δ≤5mm.Wherein, thermal expansion
Gap delta can be understood as after roller first 2 and roll shaft 1 install fixed complete, between the right side wall and the shaft shoulder 13 of the second groove 222
Spacing on the axis direction of roll shaft 1, this spacing can allow to produce different thermal deformations between roller first 2 and roll shaft 1.Specifically
Ground, after the integral installation of overhang roll 100 is fixed, roller first 2 and roll shaft 1 are placed in above-mentioned heating furnace, roller first 2 and roll shaft 1
A part is in above-mentioned heating furnace (for example, left side of the furnace wall 101 shown in Fig. 1), when heating furnace works, first 2 He of roller
The expanded by heating of roll shaft 1, roller first 2 and roll shaft 1 will move about to the left, and because roller first 2 is different with the thermal expansion amount of roll shaft 1, second is recessed
The right side wall of groove 222 moves about the axis direction relative to the shaft shoulder 13 along roll shaft 1 to the left, on the right side of the right side wall of the second groove 222
The diameter in hole be less than the external diameter (diameter of the corresponding axle of the shaft shoulder 13) of the shaft shoulder 13, and the expansion gap δ reserved can be protected
The shaft shoulder 13 will not be extruded to the left by demonstrate,proving the right side wall of the second groove 222, thus, it is possible to which the heat reduced between roller first 2 and roll shaft 1 should
Power, it is ensured that roller first 2 and the integrally-built intensity of roll shaft 1, improves the service life of roller first 2 and roll shaft 1.Preferably, δ enters one
Step is met：δ=3mm.
Moreover, roll shaft 1 is located in first bearing seat 51 and second bearing seat 52, first bearing seat 51 and second bearing seat
52 are fixed on base 5, while reducing motor 53 is also mounted on base 5, first end 11 and the swivel joint 54 of roll shaft 1
It is connected.The blank 102 of conveying can be placed in the upper surface of roller first 2, and the drive roller shaft 1 of reducing motor 53 rotates, and roll shaft 1 drives roller head
2 rotation, blank 102 by roller it is first 2 effect frictional force and along in Fig. 1 the direction of paper be moved forward or rearward,
Thus the conveying of blank 102 is completed.
It is, of course, understood that the diameter and length of roller first 2 can be set according to actual requirement, for example, roller first 2
Diameter can do small or do big, the length of roller first 2 can be done long or do short, preferably to meet actual requirement.Meanwhile, groove
22 number can also be set according to actual requirement, and between multiple grooves 22 can by with roller first 2 it is integrally formed strengthen
Muscle 23 is spaced apart, thus, and settings of groove 22 can mitigate the construction weight of roller first 2, reduce the second end 12 of roll shaft 1 edge with
Amount of deflection on the vertical direction of the axis of roll shaft 1, reinforcement 23 can ensure the intensity of roller first 2, meanwhile, simple in construction, the system of roller first 2
Cause low.
Moreover, roller first 2 is connected with roll shaft 1 by weld seam 14, it is ensured that connect reliable between roller first 2 and roll shaft 1, by
This, roller first 2 is difficult to slip and come off into above-mentioned heating furnace from roll shaft 1.If in addition, the weld seam 14 of roller first 2 and roll shaft 1 connects
Cracking is connect, when roller first 2 is excessive relative to the thermal expansion at roll shaft 1 to the second end 12 of roll shaft 1, roller first 2 is slided to the left relative to roll shaft 1
When dynamic, because the diameter in the hole on the right side of the right side wall of the second groove 222 is less than the external diameter of the shaft shoulder 13, the right side of the second groove 222
Wall can be stuck at the shaft shoulder 13, thus, and the shaft shoulder 13 can prevent roller first 2 from slipping and come off into heating furnace from roll shaft 1, it is ensured that
Overhang roll 100 overall structure is reliable, further increases the life-span of overhang roll 100.
Further, the sheath 61 of cylindrical shape is set with outside weld seam 14, sheath 61 is inserted in roller from the first end 11 of roll shaft 1
Axle 1, the left end of sheath 61 is plugged in the groove 24 of first 2 right-hand member of roller, with support, the left end of fixed sheath 61, the right side of sheath 61
End is stuck between two baffle rings 62, and two baffle rings 62 are welded on roll shaft 2, and thus, weld seam 14 is located in sheath 61 sheath 61
Portion, sheath 61 can protect weld seam 14 to be difficult to be burned, and be further ensured that roller first 2 is difficult to slip from roll shaft 1 and to above-mentioned add
Come off in hot stove, improve the service life of overhang roll 100, and sheath 61 also protects the baffle ring 62 and roll shaft 2 in left side
Weld seam is not burned, and makes the use safety and reliability of sheath 61, simultaneously as sheath 61 is not welded directly with roll shaft 1, so that
Facilitate the replacing of sheath 61.
Further, two steam vents (not shown) are could be formed with roller first 2, steam vent includes first row stomata
With second row stomata, the first groove 221 is in communication with the outside by first row stomata, the second groove 222 by second row stomata with
External world's connection, thus, roller first 2 is when above-mentioned heating in-furnace temperature is too high, and the gas in groove 22 is expanded, and can pass through two
Individual steam vent discharge, in case the gas of expansion can not spread and damage roller first 2 and roll shaft 1, it is ensured that the intensity of roller first 2 and roll shaft 1,
Improve the service life of roller first 2 and roll shaft 1.Alternatively, first row stomata and second row stomata can be circular port, first row
The diameter of stomata and second row stomata can be respectively 8mm.
Overhang roll 100 for heating furnace according to embodiments of the present invention, by making to reserve between groove 22 and the shaft shoulder 13
There is expansion gap δ, when overhang roll 100 is applied to heating furnace, roller first 2 can be effectively ensured can be axial relative to roll shaft 1
It is mobile, reduce the thermal stress between roller first 2 and roll shaft 1, it is ensured that roller first 2 and the integrally-built intensity of roll shaft 1, improve roller
First 2 and the service life of roll shaft 1, at least one of diameter for being additionally, since axle hole 21 is less than the external diameter of the shaft shoulder 13, the shaft shoulder
13 can prevent roller first 2 from being slipped from roll shaft 1, it is ensured that the overall structure of overhang roll 100 is reliable, further increases cantilever
The service life of roller 100, so as to save man-hour, increases the benefit.
In further embodiment of the present invention, the second end 12 of roll shaft 1, which is provided with cover plate 3, cover plate 3, is formed with least one
Individual passage 31.For example, as shown in figure 3, being provided with the cavity 15 axially extended, the cavity at the end 12 of roll shaft 1 second in roll shaft 1
It can be welded in 15 and be provided with baffle plate 7.Cover plate 3 is welded on the end face at the second end 12 of roll shaft 1, and cover plate 3 and the axial direction of baffle plate 7
It is arranged at intervals, a passage 31 is could be formed with cover plate 3, and the passage 31 can be located at the center of cover plate 3.By
This, when roller first 2 and the too high temperature of roll shaft 1, the gas in space limited between cover plate 3 and baffle plate 7 is expanded, Ke Yitong
Cross passage 31 to discharge, in order to avoid produce additional gas load, it is ensured that bonding strength and baffle plate 7 between cover plate 3 and roll shaft 1 with
Bonding strength between roll shaft 1.It is, of course, understood that the number of passage 31 and the specific arrangement side on cover plate 3
Formula etc. can also specifically be set according to actual requirement.
Alternatively, passage 31 is circular hole, a diameter of 5mm of passage 31.Certainly, passage 31 can also be according to reality
It is required that being arranged to slotted eye, Long Circle hole or polygonal hole etc., the size of passage 31 can also be set according to actual requirement.
Preferably, cover plate 3 and roller first 2 are heat-resisting steel part, thus, it is possible to ensure roller first 2 be difficult to be hardening cracked, scaling loss, with
Roller first 2 is caused to be come off from roll shaft 1.Moreover, cover plate 3 is using the heat-resisting steel part with the first 2 phase same material of roller, it is ensured that cover plate 3 is difficult
Hardening cracked, scaling loss so that cover plate 3 comes off from roller first 2, thus, cover plate 3 can protect baffle plate 7 well.It may be appreciated
It is that roller first 2 and cover plate 3 can also use other resistant to elevated temperatures materials according to actual requirement.
In an alternate embodiment of the present invention where, connected between roller first 2 and roll shaft 1 by key 8.For example, such as Fig. 3 institutes
Show, connected between roller first 2 and roll shaft 1 using key 8 so that the centering of roller first 2 and roll shaft 1 is good, axiality is high, positioning precision
Height, it is the side transmission moment of torsion for leaning on key 8 that roller first 2 is rotated together with roll shaft 1, and the side of key 8 is working face, and thus, key 8 can be held
By larger shock loading, varying load and transmission moment of torsion, the bonding strength between roller first 2 and roll shaft 1 is improved, it is simple in construction,
And it is easy for installation.Wherein, the number of key 8 can be one or more.As shown in Figure 3 and Figure 5, receiving key 8 is formed with roller first 2
Keyway 8a, keyway 8a can axially penetrate through the left side and right side of roller first 2 along roller first 2, so as to facilitate keyway 8a's
Processing.
In one embodiment of the invention, roll shaft 1 hides the neighbouring roll shaft 1 that hot ring 9 is located at roller first 2 provided with hot ring 9 is hidden
The second end 12.For example, as shown in Figure 1-Figure 3, hiding hot ring 9 and being set on roll shaft 1, and hide the right side that hot ring 9 is arranged on furnace wall 101
Side, hides hot ring 9 by furnace wall 101 and first bearing seat 51, second bearing seat 52, base 5, reducing motor 53, swivel joint 54 etc.
Miscellaneous part is separated, thus, it is possible to the temperature of furnace wall 101 be blocked, to protect the above-mentioned miscellaneous part for hiding the hot right side of ring 9 not burnt
Damage, so as to extend making for the parts such as first bearing seat 51, second bearing seat 52, base 5, reducing motor 53, swivel joint 54
Use the life-span.
In one embodiment of the invention, axle hole 21 is coaxially disposed with roll shaft 1.As shown in Figure 3-Figure 5, first 2 axle of roller
The axis of hole portion 21 is overlapped with the axis of roll shaft 1, and when the drive of roll shaft 1 roller first 2 is rotated, the axis of roller first 2 will not be with respect to roll shaft 1
Axis occurs along moving on the direction vertical with the axis of roll shaft 1, the upper surface of roller first 2 and the axis of roll shaft 1 with roll shaft 1
The vertical direction of axis on distance keep constant, thus, roller-way that roller first 2 is formed (during the conveying blank 102 of overhang roll 100,
The transfer passage of blank 102 that the upper surface interval of multiple rollers first 2 is formed side by side) it is stable, relative roll shaft 1 will not occur for roller first 2
Fluctuation in the vertical direction.
In one embodiment of the invention, have in roll shaft 1 and baffle plate 7 is provided with cavity 15, cavity 15, baffle plate 7 is located at
Second end 12 of roll shaft 1, overhang roll 100 further comprises：Water inlet pipe 4, one end of water inlet pipe 4 is stretched into cavity 15 and neighbouring gear
Plate 7, wherein water inlet pipe 4 are by least one set of supports support in cavity 15, and every group of support member includes support base 43, support base
Be formed with centre bore and circumferentially spaced multiple inclined holes 431 along centre bore on 43, and partially hole 431 towards roll shaft 1
The side of first end 11 is formed with groove (not shown).
For example, as shown in Figure 1-Figure 3, baffle plate 7 is welded in the cavity 15 at the end 12 of roll shaft 1 second, and baffle plate 7 is by recirculated water
Cooling system is separated with cover plate 3, it is to avoid cooling water flows into the drainages such as above-mentioned heating furnace by the passage 31 on cover plate 3.
Moreover, protective effect of the cover plate 3 to baffle plate 7 can further avoid drainage.Above-mentioned support member can include support base 43
With support block group, the left end of water inlet pipe 4 stretches into cavity 15, and the left end of water inlet pipe 4 is fixed on the support base 43 in cavity 15
Centre bore in, multiple inclined holes 431 can be set along the circumferential uniform intervals of centre bore, and swivel joint 54 passes through the first water pipe 41
It is connected with water inlet 411, swivel joint 54 is connected by the second water pipe 42 with delivery port 421.Cooling water is from water inlet 411 through
One water pipe 41, swivel joint 54 enter, and flow through water inlet pipe 4, are flowed out from the left end of water inlet pipe 4, chill roll first 2 and roll shaft 1, then
Flow into inner chamber 151 through inclined hole 431, final rotated joint 54, the second water pipe 42 are flowed out by delivery port 421, thus, cavity 15 with
Water inlet pipe 4 forms circulating water cooling system, and cooling water can reach first 2 He of good chill roll in the internal circulation flow of roll shaft 1
The effect of roll shaft 1 a, it is ensured that part for roller first 2 and the roll shaft 1 stretched into above-mentioned heating furnace is difficult to be burned.
Moreover, when cooling water flows through inclined hole 431, due to the side (example of the first end 11 towards roll shaft 1 in inclined hole 431
Such as, the right side in Fig. 3) groove, and area of the cross-sectional area more than eccentric orfice 431 of groove are formed with, thus, it will not hinder cold
But the flowing of water, it is ensured that cooling water has good mobility.It is understood that groove can by inclined hole 431 inwall
Face from left to right, be inclined upwardly to be formed, it is simple in construction, it is easy to process.
Certainly, the position in inclined hole 431 and number can also be set according to actual requirement.Meanwhile, the left end of swivel joint 54
The first end 11 of roll shaft 1 is connected on, the right-hand member of swivel joint 54 is connected with the first water pipe 41, the downside of swivel joint 54 and the second water
Pipe 42 be connected, the drive roller shaft 1 of reducing motor 53 rotate when, swivel joint 54 can realize the first water pipe 41 and the second water pipe 42 not with
Rotated with roll shaft 1, be very easy to user.Moreover, the number of above-mentioned support group and support block 44 can be according to being actually subjected to
Ask the cooling water in setting, and water inlet pipe 4 to play cooling effect, flowable liquid for other all energy, such as it is cold
But oil etc..
Alternatively, support base 43 is weldingly fixed in the cavity 15 of roll shaft 2, and the periphery of support base 43 is all welded on sky
On the wall of chamber 15, thus, the connection of support base 43 and roll shaft 2 is reliable, and support base 43 is difficult to take off from roll shaft 2 under hot environment
Fall, so as to realize the supporting role of the left end under hot environment to water inlet pipe 4 well, safety and reliability are high.Water inlet pipe 4
Right-hand member be connected with swivel joint 54, and the right-hand member of water inlet pipe 4 can pass through the nut inside swivel joint 54 and swivel joint
54 fix.The center-right position (such as at the A irised out in Fig. 1) of water inlet pipe 4 sets a support block group, and the support block group can
So that including circumferentially spaced three support blocks 44 along water inlet pipe 4, three support blocks 44 are placed in cavity 15 and water inlet pipe 4
Between inner chamber 151 in, with position of the fixed water inlet pipe 4 in cavity 15, and support block 44 can be welded on the outer of water inlet pipe 4
On surface, thus, it is ensured that longer water inlet pipe 4 is passed through after cooling water and will not deformed such as bent, and support block
44 is easy for installation.Wherein, support base 43 is chosen as supporting plate.
As shown in figure 1, the heating furnace of embodiment, including according to above-mentioned first aspect of the invention according to a second aspect of the present invention
The overhang roll 100 for heating furnace of embodiment.
Heating furnace according to embodiments of the present invention, by using above-mentioned overhang roll 100, can reduce integrally-built heat
Part in stress, the good cooling results of circulating cooling system, above-mentioned heating furnace and outside above-mentioned heating furnace is difficult to be burnt, and
And it is simple in construction, manufacturing cost is low, connects reliable between part, roller first 2 will not slide from roll shaft 1, operation safety, overhang roll
100 service life is long, meanwhile, maintenance cost is reduced, man-hour has been saved, productivity effect is improved.
Other of heating furnace according to embodiments of the present invention are constituted and operated for those of ordinary skills
All it is known, is not detailed herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example are described
Structure, material or feature are contained at least one embodiment of the present invention or example.In this manual, to above-mentioned term
Schematic representation is not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can in an appropriate manner be combined in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
A variety of change, modification, replacement and modification, the present invention can be carried out to embodiment in the case of departing from the principle and objective of the present invention
Scope limited by claim and its equivalent.
Claims (10)
1. a kind of overhang roll for heating furnace, it is characterised in that including：
Roll shaft, the roll shaft has first end and the second end, and the first end of the roll shaft is driving end；
Roller head, the roller headgear is located on the roll shaft, and the roller head be encased in from the first end of the roll shaft it is described
Be formed with second end of roll shaft, the roller head along the roller head axially through axle hole, the axle hole is extremely
At least part of diameter is less than the external diameter of the shaft shoulder of the roll shaft, and the inner surface of the axle hole has groove, the groove
There is expansion gap δ between side wall and the shaft shoulder, wherein, the δ is met：1mm≤δ≤5mm.
2. the overhang roll according to claim 1 for heating furnace, it is characterised in that the δ is further met：δ=
3mm。
3. the overhang roll according to claim 1 for heating furnace, it is characterised in that second end of the roll shaft is set
Have and be formed with least one passage on cover plate, the cover plate.
4. the overhang roll according to claim 3 for heating furnace, it is characterised in that the passage is circular hole, described
A diameter of 5mm of passage.
5. the overhang roll according to claim 3 for heating furnace, it is characterised in that the cover plate and the roller head are
Heat-resisting steel part.
6. the overhang roll for heating furnace according to any one of claim 1-5, it is characterised in that the roller head and institute
Key is connected between stating roll shaft.
7. the overhang roll according to claim 1 for heating furnace, it is characterised in that the roll shaft, which is provided with, hides hot ring,
It is described to hide second end that hot ring is located at the neighbouring roll shaft of the roller head.
8. the overhang roll according to claim 1 for heating furnace, it is characterised in that the axle hole and the roll shaft are same
Axle is set.
9. the overhang roll according to claim 1 for heating furnace, it is characterised in that there is cavity, institute in the roll shaft
State and baffle plate be provided with cavity, the baffle plate is located at second end of the roll shaft,
Further comprise：
Water inlet pipe, one end of the water inlet pipe is stretched into the cavity and the neighbouring baffle plate, wherein the water inlet pipe passes through extremely
Few one group of supports support is in the cavity, and support member described in every group includes being formed with center on support base, the support base
Hole and circumferentially spaced multiple inclined holes along centre bore, and the one of the first end of the direction roll shaft in the inclined hole
Side is formed with groove.
10. a kind of heating furnace, it is characterised in that including being used for the outstanding of heating furnace according to any one of claim 1-9
Arm roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611118652.0A CN107062909A (en) | 2016-12-07 | 2016-12-07 | For the overhang roll of heating furnace and the heating furnace with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611118652.0A CN107062909A (en) | 2016-12-07 | 2016-12-07 | For the overhang roll of heating furnace and the heating furnace with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107062909A true CN107062909A (en) | 2017-08-18 |
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ID=59619505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611118652.0A Pending CN107062909A (en) | 2016-12-07 | 2016-12-07 | For the overhang roll of heating furnace and the heating furnace with it |
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| Country | Link |
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| CN (1) | CN107062909A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747600A (en) * | 2021-01-19 | 2021-05-04 | 柳州钢铁股份有限公司 | Conveying roller in billet heating furnace |
-
2016
- 2016-12-07 CN CN201611118652.0A patent/CN107062909A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747600A (en) * | 2021-01-19 | 2021-05-04 | 柳州钢铁股份有限公司 | Conveying roller in billet heating furnace |
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