CN106694574A - Metallurgical hot rolled plate blank water-cooling roller way, water-cooling roller and mounting method of metallurgical hot rolled plate blank water-cooling roller way - Google Patents
Metallurgical hot rolled plate blank water-cooling roller way, water-cooling roller and mounting method of metallurgical hot rolled plate blank water-cooling roller way Download PDFInfo
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- CN106694574A CN106694574A CN201611106655.2A CN201611106655A CN106694574A CN 106694574 A CN106694574 A CN 106694574A CN 201611106655 A CN201611106655 A CN 201611106655A CN 106694574 A CN106694574 A CN 106694574A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
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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
- F27D3/02—Skids or tracks for heavy objects
- F27D3/026—Skids or tracks for heavy objects transport or conveyor rolls for furnaces; roller rails
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Abstract
The invention discloses a metallurgical hot rolled plate blank water-cooling roller way, a water-cooling roller and a mounting method of the metallurgical hot rolled plate blank water-cooling roller way, and belongs to the technical field of steel rolling mechanical equipment. The metallurgical hot rolled plate blank water-cooling roller way comprises a roller body, a left roller end, a right roller end, a bearing block, a rotary connector, a water inlet cavity and a water return cavity, and further comprises a first water inlet pipe and a second water inlet pipe, wherein the two ends of the first water inlet pipe are connected with a first fixing sleeve and a second fixing sleeve correspondingly, one end of the second water inlet pipe is connected with the right roller end through the second fixing sleeve, the other end of the second water inlet pipe is tightly connected with the rotary connector, and the radial interval between the second fixing sleeve and the second water inlet pipe is 0.5-1 mm. During installation, the two ends of the first water inlet pipe are connected with the first fixing sleeve and the second fixing sleeve; by carrying out static balance testing on the roller body, the smoothness is adjusted in advance at the earlier stage; and the effect that the interval is reserved between the second water inlet pipe and the second fixing sleeve in the radial direction is ensured. According to the metallurgical hot rolled plate blank water-cooling roller way, the service life of the roller way can be prolonged, the overhaul and maintenance time is shortened, and cost is effectively reduced.
Description
Technical field
The invention belongs to mechanical equipment of steel rolling technical field, more specifically to a kind of metallurgical hot rolling slab water
Chilling roller road, water cooled rolls and its installation method.
Background technology
The roll body of metallurgical hot rolling slab rollgang, because roll body surface directly contacts with red-hot slab, roll body not only will
Rotation at a high speed is asked to still suffer from 1000 DEG C of slab weight of high temperature above, therefore roll body must make water-cooling structure form.Existing roller
Intracoelomic cavity water route is separated into and out of hot and cold water by swivel joint.Specific constructive form is as shown in Figure 2：Roll body 1, left roller end 2, enter
Water pipe, right roller end 4, bearing block 5, swivel joint 6, intake antrum 10, backwater cavity 11.
Water route operating path is as follows：Water inlet pipe is elongated tubular, and normal length is suitable with barrel length (about 2m), diameter very little
In (about below 40mm) right-hand member insertion swivel joint 6, left end is inserted in the left endoporus of roller end 2, when intake antrum 10 is worked with 0.5MPa
When pressure is intake, hot water is gradually risen by roller surfaces heat radiation in backwater cavity 11, and hot water is by the endoporus of right roller end 4 and water inlet
The external diameter of pipe 3 is flowed back in swivel joint 6.
But there is problems with roller work：Roll body 1 is welded on one (for revolving body), water inlet with left and right roller end 2,4
Pipe and swivel joint 6 are fixed；When roll body 1 rotates at a high speed, under water inlet pipe delivery port can be in the endoporus of left roller end 2
Hang down, interference is produced therewith；If water inlet pipe is extracted from swivel joint 6, hot water or cold water does not become loop in roll body, so that
The function of water-cooled roll body is lost quickly, causes water cooling roller channel to damage.
Chinese patent application publication No. CN104942008A, Shen Qing Publication day：On September 30th, 2015, patent of invention title：
Water cooling roller channel with guide ring.Disclosed in this application case a kind of water cooling roller channel with guide ring, including roller-way, bearing support with
And cooling water pipeline, cooling water pipeline include swivel joint, return pipe, end cap, the first water inlet pipe, guide ring, the second water inlet pipe,
Supervisor, distributive pipe, distributive pipe one end are connected with water inlet pipe, and the second water inlet pipe is located in supervisor, second water inlet pipe one end and first
Water inlet pipe is connected.Although the water cooling roller channel water inlet pipe includes the first water inlet pipe and the second water inlet pipe, the first water inlet pipe and second
Water inlet pipe is joined directly together, and gap is not left between the two, and the cold water come in from the first water inlet pipe is directly entered the second cold water pipe
In, it is impossible to effective cold and hot water loop, and its complex structure are formed in the roll body of left and right, it is costly, it is not suitable for structure
Simple hollow roll structure.
Chinese patent Authorization Notice No. CN202485455, authorized announcement date：On October 10th, 2012, patent of invention title：
Circulating water cooling roller channel.A kind of circulating water cooling roller channel, including roller are disclosed in this application case, roller two ends are arranged with bearing
And bearing block, roller is hollow roller, including the cylindric body of roll, the body of roll and roll shaft are arranged with positioned at the roll shaft at middle part, outside roll shaft
Two end seals have baffle plate, and baffle plate, roll shaft outer wall, body of roll inwall are formed with cavity, and roll shaft is respectively arranged at the two ends with a through hole, the outer end of through hole
UNICOM's swivel joint, the inner is connected with cavity, and high temperature resistant water pipe is connected with swivel joint.Do not form cold inside the water cooling roller channel
Hot-water return, high temperature resistant water pipe needs often to change, and causes the waste of material and personnel.
The content of the invention
1. the technical problem to be solved
When being rotated at a high speed for roll body present in prior art, water inlet pipe is sagging to easily cause asking for water cooling roller channel damage
Topic, the invention provides a kind of metallurgical hot rolling slab water cooling roller channel, water cooled rolls and its installation method.It can realize extending water-cooled
Roller-way service life, the repair and maintenance time is short and conveniently replaces the purpose of pipeline.
2. technical scheme
The purpose of the present invention is achieved through the following technical solutions.
Metallurgical hot rolling slab water cooling roller channel, including roll body, left roller end, right roller end, bearing block, swivel joint, water inlet pipe, enter
Water cavity, backwater cavity, roll body are welded on the outside of left roller end and right roller end, and middle part is provided with intake antrum to water inlet pipe vertically, on a left side
The cross-section radial sidepiece of roller end and right roller end, axially disposed to have backwater cavity, intake antrum and backwater cavity UNICOM, bearing block is arranged at
Right roller end right side, swivel joint is connected in the right part of right roller end with water inlet pipe, it is characterised in that the metallurgical hot rolling slab water
Chilling roller road water inlet pipe includes the first water inlet pipe and the second water inlet pipe, and first water inlet pipe one end is solid with left roller end by the first fixed cover
Fixed to be connected, the other end is fixedly linked by the second fixed cover with right roller end；Second water inlet pipe one end is by the second fixed cover and the right side
Roller end is connected, and the other end is connected with swivel joint.
Further, first fixed cover is fixed on intake antrum inner side, the first fixed cover and the first water inlet pipe outside
Fixed, the second fixed cover is fixed on right roller end intake antrum inner side, and gap is left between the second fixed cover and the second water inlet pipe radial direction.
First water inlet pipe is fixedly connected to form one with roll body by the second fixed cover, and both reach permission after static balance is tested
Balance accuracy grade, reduces the noise of mechanical rotation, delays mechanical wear, prolonged mechanical life-span.
Further, gap is 0.5~1mm between the second fixed cover and the second water inlet pipe radial direction, and the gap can have
The cold water that makes of effect is circulated from the gap into roll body backwater cavity, and heat is taken away, while the gap can cause that roll body drives the
In one water inlet pipe rotary course, the second water inlet pipe is remained stationary as with swivel joint, it is ensured that rotation is protected while entering water stability
Adapter.
Further, the length of first water inlet pipe than second water inlet length of tube it is long, the first water inlet pipe due to roller
Body phase connects, and the second water inlet pipe is connected with swivel joint, and the second water inlet pipe need to be only changed during disassembling, assembling and replacing.
Further, the length of first water inlet pipe is 3~6 times of the second water inlet length of tube, within this range, the
The cooperation of one water inlet pipe and the second water inlet pipe can form the cold and hot water loop of stabilization, will not produce and alter chamber.
A kind of metallurgical hot rolling slab water cooled rolls, including roller-way described above, the roll shaft at roller-way two ends is connected to, roll shaft is inserted
Enter roller-way end, formation is fixedly connected with merging, and axially extending bore is provided with roller-way, be respectively equipped with the roll shaft at two ends with roller-way
Water inlet and delivery port that axially extending bore is connected.
A kind of metallurgical hot rolling slab water cooling roller channel installation method, comprises the following steps：
A. first water inlet pipe one end is fixedly connected with the first fixed cover, and the other end is fixedly connected with the second fixed cover；
B. the first water inlet pipe and the first fixed cover after being fixedly connected are fixed on the inner side of left roller end；
C. the second fixed cover after being fixedly connected is fixed on the inner side of right roller end；
D. carrying out the roll body after A, B, step C carries out static balancing test；
E. second water inlet pipe one end inject swivel joint in, the other end inject the second fixed cover in, and with the second fixed cover
Gap is left between radially.
Further, gap is 0.5~1mm between the second water inlet pipe and the second fixed cover radial direction in step E.
Further, static balance experiment is comprised the following steps that in step D：
S1. the axle journal of roll body described in step C is supported on two guide rails of static balancing frame；
S2. after judging roll body barycenter with respect to the offset direction of rotating shaft, appropriate location in the opposite direction takes appropriate clay temporary
When pasted on roll body instead of balance mass；
S3. repeat step S2, until roll body is all remained stationary as in static balancing frame optional position, the now matter footpath of institute's viscose glue mud
Product is Wb；
S4. according to the structure of roll body, by WbThe balance mass that size determines is fixed to the relevant position of roll body.
Further, in described static balancing test step S4, WbBalance mass is determined by equation below；
Wb=Mbrb
MbAnd rbRespectively increased balance mass and its barycenter to footpath.
3. beneficial effect
Compared to prior art, the advantage of the invention is that：
(1) water inlet pipe, is divided into two sections by metallurgical hot rolling slab water cooling roller channel of the invention, and first water inlet pipe one end is by solid
Fixed set is connected with left roller end, and the other end is connected by fixed cover with right roller end, can avoid being stuck in because water inlet pipe is oversize
The occurrence of causing whole roll body to scrap in roll body；
(2) metallurgical hot rolling slab water cooling roller channel of the invention, the first water inlet pipe is fixedly connected to form one, roller with roll body
In the fabrication process by static balancing test, the mass deviation occurred in connection procedure is eliminated so that roll body can be steady safely
Fixed operation, prolonged mechanical life-span；
(3) metallurgical hot rolling slab water cooling roller channel of the invention, the second water inlet pipe and the second fixed cover radial clearance be 0.5~
1mm, cold water enters intake antrum from gap and backwater cavity is circulated, and intake antrum is clear with backwater cavity water route, will not produce and alter
Chamber, so as to heat be taken away, while during the gap can cause that roll body drives the first water inlet pipe rotary course, the second water inlet pipe and rotation
Adapter is remained stationary as, it is ensured that protect swivel joint while entering water stability；
(4) metallurgical hot rolling slab water cooling roller channel of the invention, the second water inlet pipe compares the first water inlet pipe, and length reduces, when
When roll body rotates at a high speed, due to the second water inlet pipe contraction in length, will not produce down and produce interference around with the second fixed cover endoporus；
(5) metallurgical hot rolling slab water cooling roller channel of the invention, the length of the second water inlet pipe being connected with swivel joint compares
One water inlet pipe is short, therefore changes and safeguard that swivel joint is convenient, quickly can online change swivel joint, and need not open whole
Roll body, has been effectively saved manpower and materials；
(6) metallurgical hot rolling slab water cooled rolls of the invention, is made up of water cooling roller channel in multiple present invention, its simple structure,
Compact, reasonable, cooling velocity is fast, efficiency high, changes convenient, effectively save maintenance cost；
(7) metallurgical hot rolling slab water cooling roller channel installation method of the invention, installation method and processing technology are simple, will intake
Tubular construction optimizes design, is divided into two sections, extends the service life of roller.
(8) metallurgical hot rolling slab water cooling roller channel installation method of the invention, roller carries out static balance examination when installing
Test, rotating accuracy is guaranteed, reduce the noise of mechanical rotation, delayed mechanical wear, extend mechanical life.
Brief description of the drawings
Fig. 1 is the overall structure diagram of metallurgy hot rolling slab water cooling roller channel of the invention；
Fig. 2 is the overall structure diagram of prior art metallurgy hot rolling slab water cooling roller channel；
Fig. 3 is the schematic enlarged-scale view of the first fixed cover 9 and the second fixed cover 8.
Label declaration in schematic diagram：
1st, roll body；2nd, left roller end；3rd, the first water inlet pipe；4th, right roller end；5th, bearing block；6th, swivel joint；7th, the second water inlet
Pipe；8th, the second fixed cover；9th, the first fixed cover；10th, intake antrum；11st, backwater cavity.
Specific embodiment
With reference to Figure of description and specific embodiment, the present invention is described in detail.
Embodiment 1
Roller structure after transformation as shown in figure 1, the one end of the first water inlet pipe 3 is connected by the first fixed cover 9 with left roller end 2,
The other end is connected by the second fixed cover 8 with right roller end 4；The one end of second water inlet pipe 7 passes through the one end of the second fixed cover 8 and right roller end
4 are connected, and the other end is closely coupled with swivel joint 6.As shown in figure 3, the size of the first water inlet pipe 3 is 34 × 4 × 2400mm of Ф, the
The size of two water inlet pipe 7 is 33 × 4 × 450mm of Ф, and the first fixed cover 9, the size of the second fixed cover 8 are 50 × 7.5 × 70mm of Ф,
These four original paper materials are mild steel Q345-A, and solderability is good.
Suitable gap is extremely important between second water inlet pipe 7 and the second fixed cover 8, if gap is excessive, can cause into
Water inlet in water cavity 10 reflux from gap goes out, and influences the cooling effect of roll body 1, if gap is too small, when roller runs one section
Between after, can in this place leave incrustation scale, gap is blocked, the second water inlet pipe 7 and roll body 1 is rotated together, so as to cause second to enter
Water pipe 7 is extracted from swivel joint 6, loses the effect of cooling roll body.
Roller structure before transformation is revolving body as shown in Fig. 2 roll body 1 and left roller end 2, right roller end 4 are welded on one；Enter
Water pipe and swivel joint 6 are fixed；When roll body 1 rotates at a high speed, under water inlet pipe delivery port can be in the endoporus of left roller end 2
Hang down, interference is produced therewith；If water inlet pipe is extracted from swivel joint 6, hot water or cold water does not become loop in roll body, so that
The function of water-cooled roll body is lost quickly, causes water cooling roller channel to damage.
The schematic enlarged-scale view of the first fixed cover 9 and the second fixed cover 8 is as shown in figure 3, the external diameter of the second water inlet pipe 7 compares first
Small 0.5~the 1mm of the external diameter of water inlet pipe 3, it is ensured that gap is 0.5~1mm between the second water inlet pipe 7 and the radial direction of the second fixed cover 8.
Roller service life is 3~4 months, every 40,000 yuan or so of roller manufacturing cost, if asking occurs in water route before transformation
Topic, more than 20,000 yuan of at least cost is pulled down or rectifies and improves by whole roller.After transformation, the service life of every roller is extended to 2.5 years
More than, general hot rolling line at least uses 40 water cooled rollers, and 1,200,000 yuan of cost of equipment can be at least saved every year.
Embodiment 2
Roller structure after transformation as shown in figure 1, the one end of the first water inlet pipe 3 is connected by the first fixed cover 9 with left roller end 2,
The other end is connected by the second fixed cover 8 with right roller end 4；The one end of second water inlet pipe 7 passes through the one end of the second fixed cover 8 and right roller end
4 are connected, and the other end is closely coupled with swivel joint 6.As shown in figure 3, the size of the first water inlet pipe 3 is 34 × 4 × 2400mm of Ф, the
The size of two water inlet pipe 7 is 32 × 4 × 450mm of Ф, and the first fixed cover 9, the size of the second fixed cover 8 are 50 × 7.5 × 70mm of Ф.
Embodiment 3
Metallurgical hot rolling slab water cooled rolls includes above-mentioned roller-way, is connected to the roll shaft at roller-way two ends, roll shaft insertion roller-way end,
Formation is fixedly connected with merging, and axially extending bore is provided with roller-way, is respectively equipped with the roll shaft at two ends and axially extending bore phase in roller-way
The water inlet and delivery port of UNICOM.
Embodiment 4
This roller-way restoration and reuse on hot rolling line strip edge heater rollgang, 1100 DEG C of board briquette, roller-way
The speed of service is 0~20m/s, and water cooling roller channel uses certain company's roller.
Roller-way adaptation step is as follows：
The one end of (1) first water inlet pipe 3 welds together with the first fixed cover 9, and the other end and the second fixed cover 8 are welded on one
Rise；
(2) the first water inlet pipe 3 and the first fixed cover 9 after being fixedly connected are fixed on the inner side of left roller end 2；
(3) the second fixed cover 8 after being fixedly connected is fixed on the inner side of right roller end 4；
(4) carrying out the roll body after above-mentioned steps carries out static balancing test；
The one end of (5) second water inlet pipe 7 is injected in swivel joint 6, and the other end is injected in the second fixed cover 8, and solid with second
Surely 0.5mm gaps are left between the radial direction of set 8.
For the revolving member (such as roller gear, uniform disc) of some symmetrical geometries, because of foozle, material
The inertia force that unequal reason causes is uneven, is the size and orientation that balance mass cannot be determined by calculating.Even if
Some components have obvious some pieces of eccentric mass, it is also possible to size and its barycenter position of each eccentric mass cannot accurately be determined
Put.Therefore case above can only all determine the size and orientation of balance mass by static balancing test.
The general principle of static balance experiment is based on such a universal phenomenon, effect of any object in terrestrial gravitation
Under, its center (namely barycenter) is always at extreme lower position.Because revolving member barycenter deviates rotating shaft, it is impossible to make component any
Position remains stationary is motionless (i.e. static balance), and this phenomenon is referred to as static unbalance.Plus balance mass is substantially exactly adjustment revolution
The centroid position of component, is located in rotating shaft.
Equipment used by static balancing test is referred to as static balancing frame, and its major part is mounted in two in same level
Edge-shaped guide rail parallel to each other.
The axle journal of roll body in above-mentioned steps (3) is supported on two guide rails during static balancing test.If roll body is static unbalance
, then in the presence of eccentric neutrality, will be rolled on the edge of a knife.After it determined offset direction of the roll body barycenter with respect to rotating shaft,
The appropriate location (directly over i.e.), takes appropriate clay and is temporarily pasted on roll body instead of balance mass in the opposite direction, repeats
Said process.Through the size or radial position repetition test of repeatedly adjustment clay, until roll body all remains stationary at an arbitrary position
It is motionless, the now mass-radius product W of institute's viscose glue mudb.Finally according to the concrete structure of roll body, by WbSize determine balance mass consolidate
Surely the relevant position of roll body is arrived, roll body is reached static balance.
WbBalance mass is determined by equation below；
Wb=Mbrb
MbAnd rbRespectively increased balance mass and its barycenter to footpath.
Embodiment 5
This is engineered to apply on hot rolling line strip edge heater rollgang, 1100 DEG C of board briquette, roller-way
The speed of service is 0~20m/s, and water cooling roller channel uses certain company's roller.
Engineered step is as follows：
The one end of (1) first water inlet pipe 3 welds together with the first fixed cover 9, and the other end and the second fixed cover 8 are welded on one
Rise；
(2) the first water inlet pipe 3 and the first fixed cover 9 after being fixedly connected are fixed on the inner side of left roller end 2；
(3) the second fixed cover 8 after being fixedly connected is fixed on the inner side of right roller end 4；
(4) carrying out the roll body after above-mentioned steps carries out static balancing test；
The one end of (5) second water inlet pipe 7 is injected in swivel joint 6, and the other end is injected in the second fixed cover 8, and solid with second
Surely 1mm gaps are left between the radial direction of set 8.
Below schematically the invention and embodiments thereof are described, the description does not have restricted, accompanying drawing
Shown in be also the invention one of implementation method, actual structure is not limited thereto.So, if this area
Those of ordinary skill enlightened by it, in the case where this creation objective is not departed from, designed and the technology without creative
The similar frame mode of scheme and embodiment, all should belong to the protection domain of this patent.
Claims (10)
1. a kind of metallurgical hot rolling slab water cooling roller channel, including roll body (1), left roller end (2), right roller end (4), bearing block (5), rotation
Joint (6), water inlet pipe, intake antrum (10), backwater cavity (11), roll body (1) are welded on the outside of left roller end (2) and right roller end (4),
Middle part is provided with intake antrum (10) to water inlet pipe vertically, in left roller end (2) and the sidepiece of right roller end (4) cross-section radial, vertically
Backwater cavity (11), intake antrum (10) and backwater cavity (11) UNICOM are provided with, bearing block (5) is arranged at right roller end (4) right side, rotation
Joint (6) is connected in the right part of right roller end (4) with water inlet pipe, it is characterised in that the metallurgical hot rolling slab water cooling roller channel
Water inlet pipe includes the first water inlet pipe (3) and the second water inlet pipe (7), and the first water inlet pipe (3) one end is by the first fixed cover (9) and a left side
Roller end (2) is fixedly linked, and the other end is fixedly linked by the second fixed cover (8) with right roller end (4)；Second water inlet pipe (7) one end
It is connected with right roller end (4) by the second fixed cover (8), the other end is connected with swivel joint (6).
2. metallurgical hot rolling slab water cooling roller channel according to claim 1, it is characterised in that first fixed cover (9) is solid
Due to intake antrum (10) inner side, first fixes fixed on the outside of discussion (9) and the first water inlet pipe (3), and the second fixed cover (8) is fixed on
Right roller end (4) intake antrum (10) inner side, gap is left between the second fixed cover (8) and the second water inlet pipe (7) radial direction.
3. a kind of metallurgical hot rolling slab water cooling roller channel according to claim 2, it is characterised in that second fixed cover
(8) gap is 0.5~1mm and the second water inlet pipe (7) radial direction between.
4. a kind of metallurgical hot rolling slab water cooling roller channel according to claim 3, it is characterised in that first water inlet pipe
(3) length is more than the second water inlet pipe (7) length.
5. a kind of metallurgical hot rolling slab water cooling roller channel according to claim 4, it is characterised in that first water inlet pipe
(3) length is 3~6 times of the second water inlet pipe (7) length.
6. a kind of metallurgical hot rolling slab water cooled rolls, it is characterised in that including the roller-way any one of claim 1-5, even
The roll shaft at roller-way two ends is connected on, roll shaft insertion roller-way end, formation is fixedly connected with merging, and axially extending bore, two are provided with roller-way
The water inlet and delivery port with axially extending bore UNICOM in roller-way are respectively equipped with the roll shaft at end.
7. a kind of metallurgical hot rolling slab water cooling roller channel installation method, comprises the following steps：
A. the first water inlet pipe (3) one end is fixedly connected with the first fixed cover (9), and the other end is fixedly connected with the second fixed cover (8)；
B. the first water inlet pipe (3) and the first fixed cover (9) after being fixedly connected are fixed on left roller end by the first fixed cover (9)
(2) inner side；
C. the second fixed cover (8) after being fixedly connected is fixed on the inner side of right roller end (4)；
D. carrying out the roll body (1) after A, B, step C carries out static balancing test；
E. during swivel joint (6) is injected in the second water inlet pipe (7) one end, the other end is injected in the second fixed cover (8), and solid with second
Gap is left between fixed set (8) radial direction.
8. a kind of metallurgical hot rolling slab water cooling roller channel installation method according to claim 7, it is characterised in that in step E
Gap is 0.5~1mm between second water inlet pipe (7) and the second fixed cover (8) radial direction.
9. a kind of metallurgical hot rolling slab water cooling roller channel installation method according to claim 8, it is characterised in that in step D
Static balance experiment is comprised the following steps that：
S1. the axle journal of roll body described in step C is supported on two guide rails of static balancing frame；
S2. after judging roll body barycenter with respect to the offset direction of rotating shaft, appropriate location in the opposite direction takes appropriate clay temporary transient generation
Pasted on roll body for balance mass；
S3. repeat step S2, until roll body is all remained stationary as in static balancing frame optional position, now the mass-radius product of institute's viscose glue mud is
Wb；
S4. according to the structure of roll body, by WbThe balance mass that size determines is fixed to the relevant position of roll body.
10. a kind of metallurgical hot rolling slab water cooling roller channel installation method according to claim 9, it is characterised in that described
In static balancing test step S4, WbBalance mass is determined by equation below；
Wb=Mbrb
MbAnd rbRespectively increased balance mass and its barycenter to footpath.
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| CN201611106655.2A CN106694574B (en) | 2016-12-06 | 2016-12-06 | A kind of metallurgy hot rolling slab water cooling roller channel, water cooled rolls and its installation method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107081340A (en) * | 2017-07-12 | 2017-08-22 | 张辉 | A kind of roller bed cooling device |
| CN108907128A (en) * | 2018-05-31 | 2018-11-30 | 湖北新冶钢特种钢管有限公司 | A kind of medium-and-large-sized specification section continuous casting billet rollgang and its cooling application method |
| CN110453061A (en) * | 2019-08-21 | 2019-11-15 | 唐山钢铁集团微尔自动化有限公司 | A kind of interior cooled hot sending roller-way |
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| CN203155721U (en) * | 2013-03-29 | 2013-08-28 | 武汉钢铁(集团)公司 | Internal water-cooled roller |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107081340A (en) * | 2017-07-12 | 2017-08-22 | 张辉 | A kind of roller bed cooling device |
| CN108907128A (en) * | 2018-05-31 | 2018-11-30 | 湖北新冶钢特种钢管有限公司 | A kind of medium-and-large-sized specification section continuous casting billet rollgang and its cooling application method |
| CN110453061A (en) * | 2019-08-21 | 2019-11-15 | 唐山钢铁集团微尔自动化有限公司 | A kind of interior cooled hot sending roller-way |
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