CN109506479A - The scale removal water cooling furnace roller of the big load-bearing of long span - Google Patents

Abstract

The invention discloses a kind of scale removal water cooling furnace rollers of the big load-bearing of long span, including roll shaft, tapering transition body and furnace roller, the furnace roller inner wall turn contact connectio has spiral supporting post, the axial centerline of the spiral supporting post is fixed with load bearing roller, the axial centerline of the load bearing roller is equipped with axis cavity, the cavity wall of the axis cavity is equipped with swivelling chute, sliding is equipped with support frame in the swivelling chute, a point water load-bearing drive rod is fixed at the axle center of support frame as described above, the roll shaft that described point of water load-bearing drive rod passes through the water outlet end side of the scale removal water cooling furnace roller of the big load-bearing of long span is exposed outside, furnace roller inner wall both ends are respectively and fixedly provided with graphite thrust ring, the spiral supporting post and the sliding contact of graphite thrust ring, the present invention has long span, big load-bearing, scale removal, radiating efficiency is high, it is indeformable, without dross, save cooling water, reduce high temperature furnace Energy loss, good economy performance and energy conservation and environmental protection feature, extend product service life.

Description

The scale removal water cooling furnace roller of the big load-bearing of long span

Technical field

The present invention relates to the scale removal water of the big load-bearing of the long span of the technical field of high-temperature heater, especially high-temperature heater Black furnace roller.

Background technique

Currently, continuous roller-hearth heat treatment furnace, water cooling furnace roller needs to cool down furnace roller using recirculated cooling water, example Such as: the scale-free heating section furnace temperature of slab galvanization annealing furnace reaches 1000~1200 degrees Celsius, and cooling water amount is for water cooling furnace On the contrary roller is affected, and water is big, the decline of furnace roller temperature, then rise, and is guaranteeing furnace roller roller surface temperature no more than limit temperature Under the premise of degree, the fewer cooling water amount the better, can reduce furnace body thermal loss in this way, if water cooling furnace roller cooling effect is not Good, then furnace roller roll surface just will appear dross, and furnace roller deformation, bending do not turn even, workpiece sideslip or get stuck, and eventually lead to heat treatment Product quality decline；It further needs exist for frequently replacing water cooling furnace roller, not only production line interrupts pause, product yield is reduced, and And water cooling furnace roller is heat resisting steel material, cost is high, increases operation cost of enterprises.

Traditional furnace roller is usually the hollow structure of unobstructed support, and the load bearing stength of the furnace roller of this structure is usually poor, And the furnace roller water inlet of this structure is not blocked to the channel between water outlet, and cooling water residence time in furnace roller is short, because And its cooling effect is bad；Furnace roller can also be easy to happen roll surface deformation because cooling insufficient and what furnace sow was accelerated asks Topic；In high-temperature heater since heat is huge, also because load-bearing problem is easy to produce roll body especially on the furnace roller of big load-bearing Deformation；The furnace roller of long span is also easy to produce deformation in Large Furnace；There is also scale problems for water cooling furnace roller, especially for a long time After operation, even if having done purification and agent-feeding treatment to water, as can not be cleaned inside water cooling furnace roller and gradually form scale, This is a more scabrous problem, and scale necessarily makes water cooling furnace roller cooling effect bad, increases water consumption, also will affect The service life of furnace roller.Therefore, as high-temperature heater field, the water cooling furnace roller of the big load-bearing of long span is necessary to be proposed newly Design scheme.

Summary of the invention

The purpose of the present invention is to provide a kind of scale removal water cooling furnace rollers of the big load-bearing of long span.

The technical solution for realizing the aim of the invention is as follows: a kind of scale removal water cooling furnace roller of the big load-bearing of long span, including roller Axis, tapering transition body and furnace roller, the furnace roller both ends are connected to tapering transition body, and the tapering transition body is connected to roll shaft, institute Stating furnace roller inner wall turn contact connectio has spiral supporting post, and the axial centerline of the spiral supporting post is fixed with load bearing roller, described The axial centerline of load bearing roller is equipped with axis cavity, and the cavity wall of the axis cavity is equipped with swivelling chute, in the swivelling chute Sliding is equipped with support frame, is fixed with a point water load-bearing drive rod at the axle center of support frame as described above, described that water load-bearing drive rod is divided to pass through The roll shaft of the water outlet end side of the scale removal water cooling furnace roller of the big load-bearing of long span is exposed outside, and furnace roller inner wall both ends are respectively and fixedly provided with stone Black thrust ring, the spiral supporting post and the sliding contact of graphite thrust ring.

Preferably, the graphite thrust ring includes inner ring and outer rings, and side ring is fixed between the inner ring and outer rings, described It is connected to plane bearing on the inside of side ring, partition ring is connected on the inside of the plane bearing, is connected to stone on the inside of the partition ring Mo Huan, the graphite annulus inside are crimped with pressure ring, and the pressure ring is arranged between inner ring and outer rings, and pressure ring and inner ring and outer rings can Turn connection, the outer ring are fixedly connected on furnace roller inner wall, the pressure ring and spiral supporting post sliding contact.

Preferably, the inside of the pressure ring is equipped with semi-circular recesses ring, and the both ends of the spiral supporting post are equipped with sliding half Ball, the sliding hemisphere are slidably connected to semi-circular recesses ring.

Preferably, the quantity of the graphite annulus is 2 layers, and being between 2 layers of graphite annulus can turn contact connectio.

Preferably, the swivelling chute not-go-end is respectively not less than 1cm apart from load bearing roller inner wall both ends end.

Preferably, support frame as described above is Y shape, and the contact position of support frame as described above and swivelling chute is equipped with hemisphere, the rotation Slot is semicircle rotating gravure, and the hemisphere is slidingly contacted at semicircle rotating gravure.

Preferably, the Y shape support arm of support frame as described above is equipped with water hole.

Preferably, the spiral supporting post is several screw augers away from being composed, the spiral shell between the screw auger Away from 70mm is not less than, the thickness of screw auger is not less than 6mm.

Preferably, the spiral supporting post is made of heat resisting steel.

Realize another technical solution of the object of the invention are as follows: a kind of scale removal water cooling furnace roller of the big load-bearing of long span, packet Roll shaft, tapering transition body and furnace roller are included, the furnace roller both ends are connected to tapering transition body, and the tapering transition body is connected to roller Axis, the furnace roller inner wall turn contact connectio have spiral supporting post, and the axial centerline of the spiral supporting post is fixed with load bearing roller, The axial centerline of the load bearing roller is equipped with axis cavity, is fixed with support frame, the branch in the cavity wall of the axis cavity A point water load-bearing drive rod, the scale removal water cooling for dividing water load-bearing drive rod to pass through the big load-bearing of long span are fixed at the axle center of support The roll shaft of the water outlet end side of furnace roller is exposed outside, and furnace roller inner wall both ends are respectively and fixedly provided with graphite thrust ring, the spiral supporting post With graphite thrust ring sliding contact.

Compared with prior art, the present invention its remarkable advantage: plane bearing and 2 layers of graphite annulus enhance graphite thrust ring certainly Body enabling plane rotation, slides hemisphere and semi-circular recesses ring further increases the sliding rotation function of spiral supporting post；It is described The cooperation of hemisphere and semicircle rotating gravure is then to reduce a point water load-bearing drive rod horizontal movement driving load bearing roller rotation Damping, keep the cooperation of score water load-bearing drive rod and load bearing roller more smooth；The swivelling chute plays not-go-end in load bearing roller The distance of wall both ends end, effectively to divide water load-bearing drive rod reciprocating motion play position-limiting action；On the Y shape support arm of support frame Equipped with water hole, support frame has supports load-bearing property well, and support frame self-strength structure is also strengthened, supported simultaneously The Y-shaped structure of frame also avoids the larger resistance of formation to cooling water, is equipped with water hole by Y shape support arm and more reduces To the resistance of cooling water；The spiral supporting post is several screw augers away from being composed, and the screw pitch between screw auger is not small It is not less than 6mm in the thickness of 70mm, screw auger, spiral supporting post is made of heat resisting steel, can be too long or too short to avoid cooling water Time is trapped in the scale removal water cooling furnace roller of the big load-bearing of long span, effectively controls cooling water flow and heat dissipation contact area, enhancing The radial strength of spiral supporting post, while increasing the heat resistance of spiral supporting post, extend the scale removal water cooling furnace roller of the big load-bearing of long span Service life, reduce the thermal loss taken away from high-temperature heater of scale removal water cooling furnace roller of the big load-bearing of long span, promote length The radiating efficiency of the scale removal water cooling furnace roller itself of the big load-bearing of span；Water load-bearing drive rod is divided to do bilateral reciprocation, to drive Support frame also does bilateral reciprocation, and swivelling chute is slidably connected with support frame, and swivelling chute is helicla flute, and then drives load bearing roller Rotation finally drives spiral supporting post to rotate, and spiral supporting post blows the scale of furnace roller inner wall deposition off, removes so that the present invention has Dirty function, realize scale inside the scale removal water cooling furnace roller of the big load-bearing of long span of high-temperature heater can cleaning and maintenance function Energy；Furnace roller, spiral supporting post, load bearing roller, support frame, divide between water load-bearing drive rod in vertical direction stress mutually support, that This association, enhance structural strength of the invention, significantly improve load capacity ability of the invention, realize high temperature, Furnace roller is indeformable in long span and the use environment of big load-bearing, can be competent in large high-temperature heating furnace and hold greatly as long span Heavy water black furnace roller uses；Due to using water cooling, and cooling surface of the cooling water in the scale removal water cooling furnace roller of the big load-bearing of long span Product increases, and spiral supporting post forces the cooling water speed of travel to decline, and the heat dissipation utilization efficiency of cooling water is improved, so that long span is big The scale removal water cooling furnace roller of load-bearing has good heat dissipation performance, avoid because radiate it is unfavorable caused by furnace roller surface cord, and not The furnace heat for taking away more high-temperature heaters, the heat dissipation for having reached the scale removal water cooling furnace roller of the big load-bearing of long span add with high temperature Good equalization point is obtained between hot stove heat loss；The present invention has long span, big load-bearing, scale removal, radiating efficiency high, no Deformation, without dross, save cooling water, reduce high-temperature heater energy loss, good economy performance and the characteristics of energy conservation and environmental protection, while Extend service life of the invention.

Present invention is further described in detail with reference to the accompanying drawing.

Detailed description of the invention

Fig. 1 is the schematic diagram of the scale removal water cooling furnace roller embodiment 1 of the big load-bearing of long span of the present invention.

Fig. 2 is the schematic diagram of the scale removal water cooling furnace roller embodiment 2 of the big load-bearing of long span of the present invention.

Fig. 3 is the structure enlargement diagram in the portion A in Fig. 1 and Fig. 2.

Specific embodiment

Embodiment 1:

As shown in figures 1 and 3, the scale removal water cooling furnace roller of the big load-bearing of a kind of long span, including roll shaft 1, tapering transition body 2 and furnace roller 3,3 both ends of furnace roller are connected to tapering transition body 2, and the tapering transition body 2 is connected to roll shaft 1, the 3 inner wall turn of furnace roller Contact connectio has a spiral supporting post 4, and the axial centerline of the spiral supporting post 4 is fixed with load bearing roller 5, in the load bearing roller 5 Mandrel line position is equipped with axis cavity, and the cavity wall of the axis cavity is equipped with swivelling chute 9, and sliding is equipped in the swivelling chute 9 Support frame 6 is fixed with a point water load-bearing drive rod 7 at the axle center of support frame as described above 6, described that water load-bearing drive rod 7 is divided to pass through long span It spends the roll shaft 1 of the water outlet end side of the scale removal water cooling furnace roller of big load-bearing and passes through rotary joint 15 and be connected to hydraulic telescopic device 14, the roll shaft 1 of the water outlet end side is connect with rotary joint 15, and rotary joint 15 is connect with hydraulic telescopic device 14, the furnace 3 inner wall both ends of roller are respectively and fixedly provided with graphite thrust ring 11, the spiral supporting post 4 and 11 sliding contact of graphite thrust ring；The graphite Thrust ring 11 includes inner ring 111 and outer ring 113, and side ring 112, the side ring are fixed between the inner ring 111 and outer ring 113 112 inside is connected to plane bearing 117, is connected on the inside of the plane bearing 117 and separates ring 116, in the partition ring 116 Side is connected to graphite annulus 115, and pressure ring 114 is crimped on the inside of the graphite annulus 115, and inner ring 111 and outer ring is arranged in the pressure ring 114 Between 113, and pressure ring 114 and inner ring 111 and outer ring 113 can turn connect, the outer ring 113 is fixedly connected on 3 inner wall of furnace roller, The pressure ring 114 and 4 sliding contact of spiral supporting post, the inside of the pressure ring 114 are equipped with semi-circular recesses ring 119, the spiral The both ends of pillar 4 are equipped with sliding hemisphere 118, and the sliding hemisphere 118 is slidably connected to semi-circular recesses ring 119, the stone The quantity of black ring 115 is 2 layers, and being between 2 layers of graphite annulus 115 can turn contact connectio；The swivelling chute 9 plays not-go-end distance and holds 5 inner wall both ends end of weight roller is respectively 2cm, and support frame as described above 6 is Y shape, and support frame as described above 6 and the contact position of swivelling chute 9 are equipped with Hemisphere, the swivelling chute 9 are semicircle rotating gravure, and the hemisphere is slidingly contacted at semicircle rotating gravure, the branch The Y shape support arm of support 6 is equipped with water hole；The spiral supporting post 4 is 3 screw augers away from being composed, the spiral Screw pitch between auger is 80mm, screw auger with a thickness of 8mm, spiral supporting post 4 is made of heat resisting steel.

The working principle of the invention is: plane bearing 117 and 2 layer graphite annulus 115 is for graphite thrust ring 11 itself Enhance enabling plane rotation, and slides hemisphere 118 and semi-circular recesses ring 119 is then spiral supporting post 4 in order to further increase Sliding rotation function；The cooperation of the hemisphere and semicircle rotating gravure, then be to reduce point 7 water of water load-bearing drive rod The damping that flat movement driving load bearing roller 5 rotates, keeps the cooperation of score water load-bearing drive rod 7 and load bearing roller 5 more smooth；The rotation Turn trough 9 plays not-go-end and is respectively 2cm apart from 5 inner wall both ends end of load bearing roller, can effectively to divide water load-bearing drive rod 7 move back and forth Play position-limiting action；The Y shape support arm of support frame 6 is equipped with water hole, and one side support frame 6 has support bearing well Can, 6 self-strength structure of one side support frame is also strengthened, while the Y-shaped structure of support frame 6 is also avoided to cooling water Larger resistance is formed, water hole is equipped with by Y shape support arm and more reduces the resistance to cooling water；The spiral supporting post 4 Be 3 screw augers away from being composed, the screw pitch between the screw auger is 80mm, screw auger with a thickness of 8mm, spiral shell Circumflex branch column 4 is made of heat resisting steel, can be trapped in the scale removal water cooling of the big load-bearing of long span or the mistake short time too long to avoid cooling water In furnace roller, cooling water flow and heat dissipation contact area are effectively controlled, the radial strength of spiral supporting post 4 is enhanced, while increasing spiral The heat resistance of pillar 4 extends the service life of the scale removal water cooling furnace roller of the big load-bearing of long span, reduces removing for the big load-bearing of long span The thermal loss that dirty water cooling furnace roller is taken away from high-temperature heater promotes dissipating for the scale removal water cooling furnace roller itself of the big load-bearing of long span The thermal efficiency.

The driving of hydraulic telescopic device 14 divides water load-bearing drive rod 7 to do bilateral reciprocation, and support frame 6 is fixed on a point water load-bearing Drive rod 7, so that support frame 6 be driven also to do bilateral reciprocation, swivelling chute 9 is slidably connected with support frame 6, and swivelling chute 9 is Helicla flute, therefore load bearing roller 5 is driven to rotate, driving spiral supporting post 4 rotates, and it is heavy that spiral supporting post 4 blows 3 inner wall of furnace roller off Long-pending scale realizes the scale removal water cooling furnace roller of the big load-bearing of long span of high-temperature heater so that the present invention has descaling function Internal scale can cleaning and maintenance function；Furnace roller 3, spiral supporting post 4, load bearing roller 5, support frame 6, divide water load-bearing drive rod 7 it Between in vertical direction stress mutually support, be associated with each other, enhance structural strength of the invention, significantly improve the present invention Load capacity ability, it is indeformable to realize the furnace roller 3 in the use environment of high temperature, long span and big load-bearing, can be competent at It is used in large high-temperature heating furnace as the big load-bearing water cooling furnace roller of long span；Due to using water cooling, and cooling water is in long span Film-cooled heat in the scale removal water cooling furnace roller of big load-bearing increases, and spiral supporting post 4 forces the cooling water speed of travel to decline, and improves cold But the heat dissipation utilization efficiency of water so that the scale removal water cooling furnace roller of the big load-bearing of long span have good heat dissipation performance, avoid because Radiate 3 surface cord of unfavorable caused furnace roller, and does not take away the furnace heat of more high-temperature heaters, and it is big to have reached long span Good equalization point is obtained between the heat dissipation and high-temperature heater heat loss of the scale removal water cooling furnace roller of load-bearing；The present invention has length Span, big load-bearing, scale removal, radiating efficiency be high, it is indeformable, without dross, save cooling water, reduce high-temperature heating capacity of furnace damage The characteristics of mistake, good economy performance and energy conservation and environmental protection, while also extending service life of the invention.

Embodiment 2:

As shown in Figures 2 and 3, the scale removal water cooling furnace roller of the big load-bearing of a kind of long span, including roll shaft 1, tapering transition body 2 and furnace roller 3,3 both ends of furnace roller are connected to tapering transition body 2, and the tapering transition body 2 is connected to roll shaft 1, the 3 inner wall turn of furnace roller Contact connectio has a spiral supporting post 4, and the axial centerline of the spiral supporting post 4 is fixed with load bearing roller 5, in the load bearing roller 5 Mandrel line position is equipped with axis cavity, is fixed with support frame 6 in the cavity wall of the axis cavity, at the axle center of support frame as described above 6 It is fixed with a point water load-bearing drive rod 7, the water outlet of the scale removal water cooling furnace roller for dividing water load-bearing drive rod 7 to pass through the big load-bearing of long span It the roll shaft 1 of end side and passes through rotary joint 15 and is connected to motor device of rotation driving 16, the roll shaft 1 of the water outlet end side and rotation Adapter 15 connects, and rotary joint 15 is connect with motor device of rotation driving 16, and the 3 inner wall both ends of furnace roller are respectively and fixedly provided with graphite Thrust ring 11, the spiral supporting post 4 and 11 sliding contact of graphite thrust ring；The graphite thrust ring 11 is including inner ring 111 and outside Ring 113, is fixed with side ring 112 between the inner ring 111 and outer ring 113, the inside of the side ring 112 is connected to plane bearing 117, it is connected with partition ring 116 on the inside of the plane bearing 117, is connected to graphite annulus 115 on the inside of the partition ring 116, it is described Be crimped with pressure ring 114 on the inside of graphite annulus 115, the pressure ring 114 is arranged between inner ring 111 and outer ring 113, and pressure ring 114 with it is interior Ring 111 and outer ring 113 can turn connect, the outer ring 113 is fixedly connected on 3 inner wall of furnace roller, the pressure ring 114 and spiral supporting post The inside of 4 sliding contacts, the pressure ring 114 is equipped with semi-circular recesses ring 119, and the both ends of the spiral supporting post 4 are equipped with sliding Hemisphere 118, the sliding hemisphere 118 are slidably connected to semi-circular recesses ring 119, and the quantity of the graphite annulus 115 is 2 layers, and 2 Being between layer graphite annulus 115 can turn contact connectio；The Y shape support arm of support frame as described above 6 is equipped with water hole；The spiral branch Column 4 is 3 screw augers away from being composed, and the screw pitch between the screw auger is 80mm, screw auger with a thickness of 8mm, spiral supporting post 4 are made of heat resisting steel.

The working principle of the invention is: plane bearing 117 and 2 layer graphite annulus 115 is for graphite thrust ring 11 itself Enhance enabling plane rotation, and slides hemisphere 118 and semi-circular recesses ring 119 is then spiral supporting post 4 in order to further increase Sliding rotation function；The Y shape support arm of support frame 6 is equipped with water hole, and one side support frame 6 has support load-bearing well Performance, 6 self-strength structure of one side support frame is also strengthened, while the Y-shaped structure of support frame 6 is also avoided to cooling water The larger resistance of formation, by Y shape support arm be equipped with water hole more reduce the resistance to cooling water；The spiral supporting post 4 be 3 screw augers away from being composed, and the screw pitch between the screw auger is 80mm, screw auger with a thickness of 8mm, Spiral supporting post 4 is made of heat resisting steel, can be trapped in the scale removal water of the big load-bearing of long span or the mistake short time too long to avoid cooling water In black furnace roller, cooling water flow and heat dissipation contact area are effectively controlled, the radial strength of spiral supporting post 4 is enhanced, while increasing spiral shell The heat resistance of circumflex branch column 4 extends the service life of the scale removal water cooling furnace roller of the big load-bearing of long span, reduces the big load-bearing of long span The thermal loss that scale removal water cooling furnace roller is taken away from high-temperature heater promotes the scale removal water cooling furnace roller itself of the big load-bearing of long span Radiating efficiency.

The driving of motor device of rotation driving 16 divides water load-bearing drive rod 7 to rotate movement, and water load-bearing drive rod 7 is divided to be fixed on Support frame 6, support frame 6 are fixed on load bearing roller 5, and load bearing roller 5 is fixed on spiral supporting post 4, and then spiral supporting post 4 is driven to occur to turn Dynamic, spiral supporting post 4 blows the scale of 3 inner wall of furnace roller deposition off, so that the present invention has descaling function, realizes high-temperature heater Scale inside the scale removal water cooling furnace roller of the big load-bearing of long span can cleaning and maintenance function；Furnace roller 3, spiral supporting post 4, load bearing roller 5, Support frame 6 divides between water load-bearing drive rod 7 that stress mutually supports, is associated with each other in vertical direction, enhances knot of the invention Structure intensity significantly improves load capacity ability of the invention, realizes the use environment in high temperature, long span and big load-bearing Middle furnace roller 3 is indeformable, can be competent in large high-temperature heating furnace and use as the big load-bearing water cooling furnace roller of long span；Due to using Water cooling, and film-cooled heat of the cooling water in the scale removal water cooling furnace roller of the big load-bearing of long span increases, and spiral supporting post 4 forces cooling The decline of the water speed of travel, improves the heat dissipation utilization efficiency of cooling water, so that the scale removal water cooling furnace roller of the big load-bearing of long span has Good heat dissipation performance, avoid because radiate it is unfavorable caused by 3 surface cord of furnace roller, and do not take away more high-temperature heaters Furnace heat has reached and has obtained very between the heat dissipation and high-temperature heater heat loss of the scale removal water cooling furnace roller of the big load-bearing of long span Good equalization point；The present invention have long span, big load-bearing, scale removal, radiating efficiency it is high, it is indeformable, without dross, save and cool down Water reduces the characteristics of high-temperature heater energy loss, good economy performance and energy conservation and environmental protection, while also extending the use longevity of the invention Life.

The foregoing is only a preferred embodiment of the present invention, but the scope of protection of the patent of the present invention do not limit to In this, anyone skilled in the art in the technical scope disclosed by the present invention, the variation that can readily occur in or Replacement, should be covered by the protection scope of the present invention.

Claims (10)

1. a kind of scale removal water cooling furnace roller of the big load-bearing of long span, including roll shaft (1), tapering transition body (2) and furnace roller (3), described Furnace roller (3) both ends are connected to tapering transition body (2), and the tapering transition body (2) is connected to roll shaft (1), which is characterized in that described Furnace roller (3) inner wall turn contact connectio has spiral supporting post (4), and the axial centerline of the spiral supporting post (4) is fixed with load-bearing Roller (5), the axial centerline of the load bearing roller (5) are equipped with axis cavity, and the cavity wall of the axis cavity is equipped with swivelling chute (9), sliding is equipped with support frame (6) in the swivelling chute (9), and a point water load-bearing transmission is fixed at the axle center of support frame as described above (6) Bar (7), the roll shaft (1) of the water outlet end side of the scale removal water cooling furnace roller for dividing water load-bearing drive rod (7) to pass through the big load-bearing of long span Exposed furnace roller (3) the inner wall both ends are respectively and fixedly provided with graphite thrust ring (11) outside, the spiral supporting post (4) and graphite thrust Ring (11) sliding contact.

2. the scale removal water cooling furnace roller of the big load-bearing of long span according to claim 1, which is characterized in that the graphite thrust ring (11) include inner ring (111) and outer ring (113), be fixed with side ring (112) between the inner ring (111) and outer ring (113), it is described It is connected on the inside of side ring (112) plane bearing (117), partition ring (116), institute is connected on the inside of the plane bearing (117) It states and is connected to graphite annulus (115) on the inside of partition ring (116), be crimped with pressure ring (114), the pressure on the inside of the graphite annulus (115) Ring (114) is arranged between inner ring (111) and outer ring (113), and pressure ring (114) and inner ring (111) and outer ring (113) can turn companies It connects, the outer ring (113) is fixedly connected on furnace roller (3) inner wall, the pressure ring (114) and spiral supporting post (4) sliding contact.

3. the scale removal water cooling furnace roller of the big load-bearing of long span according to claim 2, which is characterized in that the pressure ring (114) Inside be equipped with semi-circular recesses ring (119), the both ends of the spiral supporting post (4) be equipped with sliding hemisphere (118), the sliding Hemisphere (118) is slidably connected to semi-circular recesses ring (119).

4. the scale removal water cooling furnace roller of the big load-bearing of long span according to claim 2, which is characterized in that the graphite annulus (115) quantity is 2 layers, and being between 2 layers of graphite annulus (115) can turn contact connectio.

5. the scale removal water cooling furnace roller of the big load-bearing of long span according to claim 1, which is characterized in that the swivelling chute (9) It plays not-go-end and is respectively not less than 1cm apart from load bearing roller (5) inner wall both ends end.

6. the scale removal water cooling furnace roller of the big load-bearing of long span according to claim 1, which is characterized in that support frame as described above (6) For Y shape, the contact position of support frame as described above (6) and swivelling chute (9) is equipped with hemisphere, and the swivelling chute (9) is that semicircle rotation is recessed Slot, the hemisphere are slidingly contacted at semicircle rotating gravure.

7. the scale removal water cooling furnace roller of the big load-bearing of long span according to claim 6, which is characterized in that support frame as described above (6) Y shape support arm be equipped with water hole.

8. the scale removal water cooling furnace roller of the big load-bearing of long span according to claim 1, which is characterized in that the spiral supporting post It (4) is several screw augers away from being composed, the screw pitch between the screw auger is not less than 70mm, the thickness of screw auger Degree is not less than 6mm.

9. the scale removal water cooling furnace roller of the big load-bearing of long span according to claim 1, which is characterized in that spiral supporting post (4) is Heat resisting steel is made.

10. a kind of scale removal water cooling furnace roller of the big load-bearing of long span, including roll shaft (1), tapering transition body (2) and furnace roller (3), described Furnace roller (3) both ends are connected to tapering transition body (2), and the tapering transition body (2) is connected to roll shaft (1), which is characterized in that described Furnace roller (3) inner wall turn contact connectio has spiral supporting post (4), and the axial centerline of the spiral supporting post (4) is fixed with load-bearing Roller (5), the axial centerline of the load bearing roller (5) are equipped with axis cavity, are fixed with support in the cavity wall of the axis cavity Frame (6) is fixed with a point water load-bearing drive rod (7) at the axle center of support frame as described above (6), described that water load-bearing drive rod (7) is divided to pass through The roll shaft (1) of the water outlet end side of the scale removal water cooling furnace roller of the big load-bearing of long span is exposed outside, and furnace roller (3) the inner wall both ends are solid Surely have graphite thrust ring (11), the spiral supporting post (4) and graphite thrust ring (11) sliding contact.