CN205851564U - Hot rolling steekle mill slewing rollers - Google Patents
Hot rolling steekle mill slewing rollers Download PDFInfo
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- CN205851564U CN205851564U CN201620625541.8U CN201620625541U CN205851564U CN 205851564 U CN205851564 U CN 205851564U CN 201620625541 U CN201620625541 U CN 201620625541U CN 205851564 U CN205851564 U CN 205851564U
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- cooling
- spindle nose
- roll
- slewing rollers
- hot rolling
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Abstract
This utility model is a kind of hot rolling steekle mill slewing rollers, including the body of roll, the inside of the body of roll is provided with the cooling inner chamber axially through setting along the body of roll, the two ends of the body of roll are fixedly installed the first spindle nose and the second spindle nose respectively, it is provided with through and with cooling inner space the first cooling intercommunicating pore in first spindle nose, in the second spindle nose, is provided with the second cooling intercommunicating pore that one end is closed with described cooling inner space, the other end.Hot rolling steekle mill slewing rollers overcome the problem that slewing rollers internal cooling poor performance present in prior art causes strip quality difference, the cooling performance in the body of roll can be improved, the crackle preventing surface occurs, improve the service life of slewing rollers, and then ensure that strip quality, improve Rolling Production efficiency.
Description
Technical field
This utility model relates to technical field of steel rolling, particularly relates to a kind of hot rolling steekle mill slewing rollers.
Background technology
On steel rolling production-line, steekle mill being provided with slewing rollers, the Main Function of slewing rollers is that reel crimp band volume is straight
When footpath increases, the fire door preventing the tape steel increased from touching volume stove causes belt steel surface to produce defect, additionally, pressed from both sides by milling train
Sending roller, guide plate and slewing rollers composition band volume buffer system, band volume buffer system is impacted during effectively slowing down band volume curling
Vibrating the runout produced on band volume, therefore, slewing rollers play very important effect, when being steckel rolling and band when rolling
One key equipment of steel Long Term Contact, and slewing rollers are positioned at the fire door of volume stove, its working condition is very poor, its deformation or not
Balance can cause serious vibrations, and there will be the phenomenons such as face crack when its internal cooling is bad, and then causes strip steel
Quality problems, cause strip steel to produce quality defect；And due to fire door extreme temperatures, operate extremely inconvenient when changing slewing rollers,
The downtime of steekle mill is longer, has a strong impact on Rolling Production efficiency.
The internal cooling performance of slewing rollers is an up slewing rollers service life, ensures the key factor of strip quality.Such as Fig. 3
Shown in, the cooling of slewing rollers 9 is the most axially disposed Cooling Holes 91, and one end of slewing rollers arranges cooling rotation
Adaptor 92, cooling swivel joint is provided with cooling water inlet 922, cooling water inlet 922 and a cooling water ascending pipe 921
Connection, cooling water ascending pipe 921 is arranged in Cooling Holes 91, and cooling water flows into cold from cooling water ascending pipe 921 free end opening
But in the annular space between hole 91 and cooling water ascending pipe 921；Coolant outlet 923 it is additionally provided with on cooling swivel joint 92,
Annular space and coolant outlet 923 between Cooling Holes 91 with cooling water ascending pipe 921 connect, and the water after cooling slewing rollers is through cold
But water out 923 flows out slewing rollers 9, completes the cooling circulation within slewing rollers 9.
The most overall forged structure of existing slewing rollers, as it is shown on figure 3, the structure restriction forged due to entirety, turns
Relatively big to the wall thickness of roller 9, its internal Cooling Holes 91 diameter is smaller, thus cooling water flow is little, inside slewing rollers
Film-cooled heat is little, causes internal cooling bad, in turn results in the face crack of slewing rollers, affects use birthday noodle and the meeting of slewing rollers
Strip steel is caused to produce quality defect.
Thus, the present inventor relies on experience and the practice being engaged in relevant industries for many years, proposes a kind of hot rolling steekle mill and turns
To roller, to overcome the defect of prior art.
Utility model content
The purpose of this utility model is to provide a kind of hot rolling steekle mill slewing rollers, overcomes and turns present in prior art
The problem causing strip quality difference to roller internal cooling poor performance, it is possible to improve the cooling performance in the body of roll, prevent splitting of surface
Stricture of vagina occurs, and improves the service life of slewing rollers, and then ensure that strip quality, improves Rolling Production efficiency.
The purpose of this utility model is achieved in that a kind of hot rolling steekle mill slewing rollers, described hot rolling steekle mill
Slewing rollers include that the body of roll, the inside of the described body of roll are provided with the cooling inner chamber axially through setting along the described body of roll, the described body of roll
Two ends be fixedly installed the first spindle nose and the second spindle nose respectively, be provided with through and cold with described in described first spindle nose
But the first cooling intercommunicating pore of inner space, is provided with one end and described cooling inner space, the other end in described second spindle nose
The the second cooling intercommunicating pore closed.
In a better embodiment of the present utility model, the diameter of described cooling inner chamber is more than described first cooling connection
The diameter in hole, the diameter of described cooling inner chamber is more than the diameter of described second cooling intercommunicating pore.
In a better embodiment of the present utility model, set between described first cooling intercommunicating pore and described cooling inner chamber
It is equipped with and is provided with between the first taper hole of body of roll flaring, described second cooling intercommunicating pore and described cooling inner chamber from the first spindle nose
From the second spindle nose to the second taper hole of body of roll flaring.
In a better embodiment of the present utility model, the described body of roll is on the outer wall of one end of described first spindle nose
Being provided with the first step portion for being socketed described first spindle nose, the described body of roll is on the outer wall of one end of described second spindle nose
It is provided with the second step portion for being socketed described second spindle nose.
In a better embodiment of the present utility model, the end face of described first spindle nose is resisted against described first step portion
On, the end face of described first spindle nose and described first step portion are provided with the first groove, the end face of described second spindle nose against
In described second step portion, the end face of described second spindle nose and described second step portion are provided with the second groove.
In a better embodiment of the present utility model, described first spindle nose and described second spindle nose are all fixedly welded on
The two ends of the described body of roll.
In a better embodiment of the present utility model, described first spindle nose is on the outer wall of one end of the described body of roll
It is provided with diameter from the first spindle nose to cumulative the first frustum of the body of roll, described second spindle nose outer wall near one end of the described body of roll
On be provided with diameter from the second spindle nose to cumulative the second frustum of the body of roll.
In a better embodiment of the present utility model, the described body of roll is made up of seamless steel pipe, described seamless steel pipe
Inner chamber constitutes described cooling inner chamber.
In a better embodiment of the present utility model, the outer wall of described seamless steel pipe is provided with overlay cladding.
In a better embodiment of the present utility model, described first spindle nose wears cooling swivel joint, described
Being provided with cooling water inlet on cooling swivel joint, described cooling water inlet is communicated in a cooling water ascending pipe, described cooling
Water ascending pipe is worn and is extended by the free end of described first cooling intercommunicating pore, described cooling inner chamber and described cooling water ascending pipe
To described second cooling intercommunicating pore, between described cooling water ascending pipe and described first cooling intercommunicating pore, form the first annular space,
Forming the second annular space between described cooling water ascending pipe and described second cooling intercommunicating pore, described cooling water ascending pipe is cold with described
But form inner chamber annular space between inner chamber, described cooling swivel joint be additionally provided with coolant outlet, described second annular space with
Described coolant outlet connects.
From the above mentioned, the hot rolling steekle mill slewing rollers that this utility model provides, the body of roll uses intercalation with the spindle nose at two ends
Formula fixed structure, processing is simple, and the cooling intracavity diameter within the body of roll increases, and the wall thickness of the body of roll is little, body of roll good cooling results, has
Prevent body of roll outer wall surface generation crackle to effect, it is ensured that strip quality, improve hot rolling steekle mill slewing rollers and make online
With the life-span, extend maintenance maintenance and the replacement cycle of hot rolling steekle mill slewing rollers, decrease hot rolling steekle mill slewing rollers
Replacement frequency, decrease the downtime of steekle mill, improve Rolling Production efficiency.
Accompanying drawing explanation
The following drawings is only intended to, in schematically illustrating this utility model and explaining, not limit model of the present utility model
Enclose.Wherein:
Fig. 1: for hot rolling steekle mill slewing rollers structural representation of the present utility model.
Fig. 2: for enlarged drawing in Fig. 1 I.
Fig. 3: for the structural representation of slewing rollers in prior art.
In figure:
100, hot rolling steekle mill slewing rollers；
1, the body of roll；11, cooling inner chamber；12, first step portion；13, second step portion；14, overlay cladding；
2, the first spindle nose；21, the first cooling intercommunicating pore；22, the first taper hole；23, the first frustum；
3, the second spindle nose；31, the second cooling intercommunicating pore；32, the second taper hole；33, the second frustum；
4, cooling swivel joint；41, cooling water inlet；42, cooling water ascending pipe；43, coolant outlet；
51, the first groove；52, the second groove；
9, slewing rollers；91, Cooling Holes；92, cooling swivel joint；921, cooling water ascending pipe；922, cooling water inlet；
923, coolant outlet.
Detailed description of the invention
In order to technical characteristic of the present utility model, purpose and effect are more clearly understood from, now comparison accompanying drawing explanation
Detailed description of the invention of the present utility model.
As it is shown in figure 1, the hot rolling steekle mill slewing rollers 100 that this utility model provides, including the body of roll 1, the inside of the body of roll 1
Be provided with along the body of roll 1 axially through the cooling inner chamber 11 arranged, the two ends of the body of roll 1 are fixedly installed the first spindle nose 2 and the respectively
Two spindle noses 3, are provided with the first cooling intercommunicating pore 21 that is through and that connect, the second spindle nose with cooling inner chamber 11 in the first spindle nose 2
The second cooling intercommunicating pore 31 that one end connects, the other end is closed it is provided with cooling inner chamber 11 in 3.The diameter of cooling inner chamber 11 is remote
The first cooling intercommunicating pore 21, second more than two ends cools down the diameter of intercommunicating pore 31, increase effectively internal cooling area, cooling
Discharge is relatively big, and the wall thickness of the body of roll 1 is less, the body of roll 1 good cooling results, effectively prevent the body of roll 1 outer wall surface and splits
Stricture of vagina, it is ensured that strip quality, improves hot rolling steekle mill slewing rollers 100 online service life, extends hot rolling steekle mill
The maintenance maintenance of slewing rollers 100 and replacement cycle, decrease the replacement frequency of hot rolling steekle mill slewing rollers 100, decrease stove
The downtime of rolling machine, improve Rolling Production efficiency.
Further, as it is shown in figure 1, first cooling intercommunicating pore 21 and cooling inner chamber 11 between be provided with from the first spindle nose 2 to
First taper hole 22 of the body of roll 1 flaring, is provided with from the second spindle nose 3 to the body of roll between the second cooling intercommunicating pore 31 and cooling inner chamber 11
Second taper hole 32 of 1 flaring.First taper hole the 22, second taper hole 32 can make flow of cooling water more smooth and easy.
Further, as shown in Figure 1 and Figure 2, the body of roll 1 is provided with for socket the on the outer wall of one end of the first spindle nose 2
The first step portion 12 of one spindle nose 2, the body of roll 1 is provided with for being socketed the second spindle nose 3 on the outer wall of one end of the second spindle nose 3
Second step portion 13.First spindle nose the 2, second spindle nose 3 is intercalated in the body of roll by first step portion 12, second step portion 13 respectively
The two ends of 1.First spindle nose the 2, second spindle nose 3 all uses high strength steel forging, and in one embodiment, forging ratio is 4:1, right
Spindle nose carries out 100%UT flaw detection, and standard presses JB/T5000.15-2007 " the lossless spy of heavy-duty machinery general technical specifications forged steel pieces
Wound " in I grade qualified.
Further, as shown in Figure 1 and Figure 2, the end face of the first spindle nose 2 is resisted against in first step portion 12, the first spindle nose 2
Being provided with the first groove 51 on end face and first step portion 12, the end face of the second spindle nose 3 is resisted against in second step portion 13, and second
The second groove 52 it is provided with on the end face of spindle nose 3 and second step portion 13.
Further, the first spindle nose 2 and the second spindle nose 3 are all fixedly welded on the two ends of the body of roll 1.In one embodiment,
During welding, the body of roll 1 and first step portion 12, the abutting contact portion in second step portion 13 all offer 30 degree of grooves, beat through argon arc welding
, groove is carried out common manual welding at the end.Selecting J507 welding rod during welding, welding current scope 90～120A, according to standard
Job specification weld job, including filling weldering and cosmetic welding, interlayer temperature 100 DEG C～400 DEG C when filling weldering, interlayer cleaning is dry
Only, weld at many levels；During cosmetic welding, carry out cosmetic welding with manual metal-arc welding on request, note the formation of weld seam.After welding, weld seam is necessary
Carry out taking X-ray detection, meet in JB/T4730-2005 I grade qualified.Carry out heat treatment after welding, preheat 600 DEG C～650
DEG C, it being incubated 2 hours, firing rate is by carrying out less than or equal to 300 DEG C/Hr.Hot rolling steekle mill slewing rollers 100 to be carried out before using
Dynamic balance running, dynamic balance grade G1.6.
Further, as it is shown in figure 1, the first spindle nose 2 is provided with diameter from the first spindle nose on the outer wall of one end of the body of roll 1
2 to cumulative the first frustum 23 of the body of roll 1, and the second spindle nose 3 is arranged by diameter from the second spindle nose on the outer wall of one end of the body of roll 1
3 to cumulative the second frustum 33 of the body of roll 1.
Further, the body of roll 1 is made up of seamless steel pipe, and the inner chamber of seamless steel pipe constitutes cooling inner chamber 11.It is embodied as one
In example, its material selection Q345-B.Seamless steel pipe inner chamber is carried out boring be processed to form cooling inner chamber 11, wall thickness deviation≤
0.03mm, endoporus roughness Ra 0.8.Cooling inner chamber 11 uses eddy current inspection to detect, and is not allow for any point-like or line defect.
Further, the outer wall of seamless steel pipe is provided with overlay cladding 14.Before built-up welding, the outer wall to seamless steel pipe carries out turning
Processing, and before built-up welding, carry out size and dye penetration inspection, seamless steel pipe is placed on whirler, and seamless steel pipe is preheated
300 DEG C～350 DEG C (50 DEG C/Hr of firing rate), after surface overlaying terminates, 350 DEG C are incubated 1 hour, then Slow cooling, slowly
During cooling, speed should be less than 30 DEG C/Hr, air cooling when temperature drops to 100 DEG C.Heap postwelding check table face size, case hardness and
Color detect a flaw, after inspection use electric furnace double annealing heat treatment, carry out surface turnery processing afterwards, after turning check surface size,
Case hardness and dye penetrant inspection, carry out surface finish process after inspection, finally carries out surface inspection eventually.Seamless steel pipe surface carries out heap
Postwelding, improves welding performance, it is ensured that high temperature resistant, the anti-wear performance on the body of roll 1 surface.
Further, as it is shown in figure 1, hot rolling steekle mill slewing rollers 100 use inner loop to cool down, the first spindle nose 2 is worn
If cooling is with swivel joint 4 (prior art), cooling swivel joint 4 is provided with cooling water inlet 41, cooling water inlet 41
Being communicated in a cooling water ascending pipe 42, cooling water ascending pipe 42 wears by the first cooling intercommunicating pore 21, cooling inner chamber 11 and cold
But during the free end of water ascending pipe 42 extends to the second cooling intercommunicating pore 31, cooling water ascending pipe 42 and the first cooling intercommunicating pore 21
Between form the first annular space, form the second annular space between cooling water ascending pipe 42 and the second cooling intercommunicating pore 31, cooling water injects
Form inner chamber annular space between pipe 42 and cooling inner chamber 11, cooling swivel joint 4 is additionally provided with coolant outlet 43, the second ring
Sky connects with coolant outlet 43.The free end of cooling water ascending pipe 42 is positioned in the second cooling intercommunicating pore 31, and cooling water is from it
The opening of free end flows out, and flows into inner chamber annular space through the second annular space, cools down the body of roll 1, and the water after the cooling body of roll 1 is through first
Annular space flows out from coolant outlet 43, completes cooling water circulation.The body of roll 1 wall thickness of hot rolling steekle mill slewing rollers 100 is less, and one
Denier occurs that volume stove stops working, and inner loop cooling can make to cool down rapidly inside and outside the body of roll 1, does not haves the body of roll 1 internal/external heating contrast
Big phenomenon, is effectively prevented the body of roll 1 surface and cracks, improve the service life that slewing rollers are online, improve hot rolling stove
The exchange cycle 2 of rolling machine slewing rollers 100～3 times.
From the above mentioned, the hot rolling steekle mill slewing rollers that this utility model provides, the body of roll uses intercalation with the spindle nose at two ends
Formula fixed structure, processing is simple, and the cooling intracavity diameter within the body of roll increases, and the wall thickness of the body of roll is little, body of roll good cooling results, has
Prevent body of roll outer wall surface generation crackle to effect, it is ensured that strip quality, improve hot rolling steekle mill slewing rollers and make online
With the life-span, extend maintenance maintenance and the replacement cycle of hot rolling steekle mill slewing rollers, decrease hot rolling steekle mill slewing rollers
Replacement frequency, decrease the downtime of steekle mill, improve Rolling Production efficiency.
The foregoing is only the schematic detailed description of the invention of this utility model, be not limited to model of the present utility model
Enclose.Any those skilled in the art, equivalent done on the premise of without departing from design of the present utility model and principle becomes
Change and amendment, the scope of this utility model protection all should be belonged to.
Claims (9)
1. hot rolling steekle mill slewing rollers, it is characterised in that: described hot rolling steekle mill slewing rollers include the body of roll, described roller
The inside of body be provided with along the described body of roll axially through the cooling inner chamber arranged, the two ends of the described body of roll are fixedly installed the respectively
One spindle nose and the second spindle nose, be provided with through and with described cooling inner space the first cooling even in described first spindle nose
Through hole, is provided with the second cooling intercommunicating pore that one end is closed with described cooling inner space, the other end in described second spindle nose；
Described first spindle nose wears cooling swivel joint, described cooling swivel joint is provided with cooling water inlet, institute
State cooling water inlet and be communicated in a cooling water ascending pipe, described cooling water ascending pipe wear by described first cooling intercommunicating pore,
The free end of described cooling inner chamber and described cooling water ascending pipe extends in described second cooling intercommunicating pore, and described cooling water is noted
Enter and between pipe and described first cooling intercommunicating pore, form the first annular space, described cooling water ascending pipe and described second cooling intercommunicating pore
Between form the second annular space, between described cooling water ascending pipe and described cooling inner chamber formed inner chamber annular space, described cooling rotation
Being additionally provided with coolant outlet on adaptor, described second annular space connects with described coolant outlet.
2. hot rolling steekle mill slewing rollers as claimed in claim 1, it is characterised in that: the diameter of described cooling inner chamber is more than institute
Stating the diameter of the first cooling intercommunicating pore, the diameter of described cooling inner chamber is more than the diameter of described second cooling intercommunicating pore.
3. hot rolling steekle mill slewing rollers as claimed in claim 2, it is characterised in that: described first cooling intercommunicating pore is with described
It is provided with between cooling inner chamber from the first spindle nose to the first taper hole of body of roll flaring, described second cooling intercommunicating pore and described cooling
It is provided with between inner chamber from the second spindle nose to the second taper hole of body of roll flaring.
4. hot rolling steekle mill slewing rollers as claimed in claim 1, it is characterised in that: the described body of roll is near described first spindle nose
One end outer wall on be provided with the first step portion for being socketed described first spindle nose, the described body of roll is near described second spindle nose
One end outer wall on be provided with the second step portion for being socketed described second spindle nose.
5. hot rolling steekle mill slewing rollers as claimed in claim 4, it is characterised in that: the end face of described first spindle nose is resisted against
In described first step portion, the end face of described first spindle nose and described first step portion it is provided with the first groove, described second
The end face of spindle nose is resisted against in described second step portion, and the end face of described second spindle nose and described second step portion are provided with
Two grooves.
6. hot rolling steekle mill slewing rollers as claimed in claim 5, it is characterised in that: described first spindle nose and described second
Spindle nose is all fixedly welded on the two ends of the described body of roll.
7. hot rolling steekle mill slewing rollers as claimed in claim 1, it is characterised in that: described first spindle nose is near the described body of roll
One end outer wall on be provided with diameter from the first spindle nose to cumulative the first frustum of the body of roll, described second spindle nose is near described roller
Diameter it is provided with from the second spindle nose to cumulative the second frustum of the body of roll on the outer wall of one end of body.
8. hot rolling steekle mill slewing rollers as claimed in claim 1, it is characterised in that: the described body of roll is made up of seamless steel pipe,
The inner chamber of described seamless steel pipe constitutes described cooling inner chamber.
9. hot rolling steekle mill slewing rollers as claimed in claim 8, it is characterised in that: arrange on the outer wall of described seamless steel pipe
There is overlay cladding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620625541.8U CN205851564U (en) | 2016-06-23 | 2016-06-23 | Hot rolling steekle mill slewing rollers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620625541.8U CN205851564U (en) | 2016-06-23 | 2016-06-23 | Hot rolling steekle mill slewing rollers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205851564U true CN205851564U (en) | 2017-01-04 |
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ID=57637669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620625541.8U Active CN205851564U (en) | 2016-06-23 | 2016-06-23 | Hot rolling steekle mill slewing rollers |
Country Status (1)
| Country | Link |
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| CN (1) | CN205851564U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112828055A (en) * | 2020-12-31 | 2021-05-25 | 浦项(张家港)不锈钢股份有限公司 | Manufacturing process of steckel mill steering roller |
-
2016
- 2016-06-23 CN CN201620625541.8U patent/CN205851564U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112828055A (en) * | 2020-12-31 | 2021-05-25 | 浦项(张家港)不锈钢股份有限公司 | Manufacturing process of steckel mill steering roller |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215625 Yangtze River Metallurgical Industrial Park, Zhangjiagang City, Jiangsu Province Patentee after: Puxiang (Zhangjiagang) Stainless Steel Co., Ltd. Address before: 215625 Yangtze River Metallurgical Industrial Park, Zhangjiagang City, Jiangsu Province Patentee before: Puxiang Stainless Steel Co Ltd, Shangjiagang |
|
| CP01 | Change in the name or title of a patent holder |