CN209399774U - The scale removal water cooling furnace roller of the big load-bearing of long span - Google Patents

Abstract

The utility model 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 utility model has long span, big load-bearing, scale removal, radiating efficiency is high, it is indeformable, without dross, save cooling water, subtract Few 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 utility model relates to removing for the big load-bearing of the long span of the technical field of high-temperature heater, especially high-temperature heater Dirty water cooling 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 this utility model is to provide a kind of scale removal water cooling furnace rollers of the big load-bearing of long span.

Realize the technical solution of the utility model aim 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, and the cavity wall of the axis cavity is equipped with swivelling chute, the rotation Sliding is equipped with support frame in slot, is fixed with a point water load-bearing drive rod at the axle center of support frame as described above, described to divide water load-bearing drive rod Roll shaft across 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 fixed There are graphite 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 utility model aim are as follows: a kind of scale removal water cooling furnace of the big load-bearing of long span Roller, including roll shaft, tapering transition body and furnace roller, the furnace roller both ends are connected to tapering transition body, the tapering transition body connection In roll shaft, the furnace roller inner wall turn contact connectio has spiral supporting post, and the axial centerline of the spiral supporting post, which is fixed with, to be held Weight roller, the axial centerline of the load bearing roller are equipped with axis cavity, are fixed with support frame in the cavity wall of the axis cavity, institute It states and is fixed with a point water load-bearing drive rod at the axle center of support frame, the scale removal for dividing water load-bearing drive rod to pass through the big load-bearing of long span The roll shaft of the water outlet end side of water cooling furnace roller is exposed outside, and furnace roller inner wall both ends are respectively and fixedly provided with graphite thrust ring, the spiral Pillar and the sliding contact of graphite thrust ring.

Compared with prior art, remarkable advantage: plane bearing and 2 layers of graphite annulus enhance graphite thrust to the utility model Ring own layer rotation function, slides hemisphere and semi-circular recesses ring further increases the sliding rotation function of spiral supporting post； The cooperation of the hemisphere and semicircle rotating gravure is then to reduce a point water load-bearing drive rod horizontal movement driving load bearing roller The damping of rotation keeps the cooperation of score water load-bearing drive rod and load bearing roller more smooth；The swivelling chute plays not-go-end apart from load-bearing The distance of roller inner wall both ends end, effectively to divide water load-bearing drive rod reciprocating motion play position-limiting action；The Y shape of support frame supports Arm is equipped with water hole, and support frame has supports load-bearing property well, and support frame self-strength structure is also strengthened, simultaneously The Y-shaped structure of support frame also avoids the larger resistance of formation to cooling water, is equipped with water hole by Y shape support arm and more adds and subtracts The low resistance to cooling water；The spiral supporting post is several screw augers away from being composed, the screw pitch between screw auger Not less than 70mm, the thickness of screw auger is not less than 6mm, and spiral supporting post is made of heat resisting steel, can it is too long to avoid cooling water or Spending the short 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, Enhance the radial strength of spiral supporting post, while increasing the heat resistance of spiral supporting post, extends the scale removal water cooling of the big load-bearing of long span The service life of furnace roller reduces the thermal loss that the scale removal water cooling furnace roller of the big load-bearing of long span is taken away from high-temperature heater, mentions Rise the radiating efficiency of the scale removal water cooling furnace roller itself of the big load-bearing of long span；Water load-bearing drive rod is divided to do bilateral reciprocation, thus Driving support frame also does bilateral reciprocation, and swivelling chute is slidably connected with support frame, and swivelling chute is helicla flute, and then drives and hold Weight roller rotation, finally drives spiral supporting post to rotate, and spiral supporting post blows the scale of furnace roller inner wall deposition off, so that this is practical new Type has descaling function, and dimension can be cleared up by realizing the scale inside the scale removal water cooling furnace roller of the big load-bearing of long span of high-temperature heater The function of shield；Furnace roller, load bearing roller, support frame, divides between water load-bearing drive rod that stress is mutually propped up in vertical direction at spiral supporting post It supports, is associated with each other, enhancing the structural strength of the utility model, significantly improve the load capacity ability of the utility model, It is indeformable to realize the furnace roller in the use environment of high temperature, long span and big load-bearing, can be competent in large high-temperature heating furnace It is used as the big load-bearing water cooling furnace roller of long span；Due to using water cooling, and cooling water is in the scale removal water cooling of the big load-bearing of long span Film-cooled heat in furnace roller increases, and spiral supporting post forces the cooling water speed of travel to decline, and the heat dissipation for improving cooling water utilizes effect Rate 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 it is unfavorable caused by furnace Roller surface dross, and the furnace heat of more high-temperature heaters is not taken away, reach the scale removal water cooling furnace of the big load-bearing of long span Good equalization point is obtained between the heat dissipation and high-temperature heater heat loss of roller；The utility model have long span, big load-bearing, Scale removal, radiating efficiency be high, it is indeformable, without dross, save cooling water, reduce high-temperature heater energy loss, good economy performance and The characteristics of energy conservation and environmental protection, while also extending the service life of the utility model.

The utility model is described in further 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 the utility model long span.

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

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 1,2 and of tapering transition body 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 1,3 inner wall of furnace roller 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 load bearing roller 5 Axial centerline be equipped with axis cavity, the cavity wall of the axis cavity is equipped with swivelling chute 9, sliding in the swivelling chute 9 Equipped with support frame 6, a point water load-bearing drive rod 7 is fixed at the axle center of support frame as described above 6, it is 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 and pass through rotary joint 15 be connected to hydraulically extensible dress 14 are set, 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, described 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 stone Black 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 utility model is: plane bearing 117 and 2 layer graphite annulus 115 is for graphite thrust ring 11 Itself enhancing enabling plane rotation, and slide hemisphere 118 and semi-circular recesses ring 119 is then spiral supporting post in order to further increase 4 sliding rotation function；The cooperation of the hemisphere and semicircle rotating gravure, then be to reduce a point water load-bearing drive rod The damping that 7 horizontal movements drive load bearing roller 5 to rotate, keeps the cooperation of score water load-bearing drive rod 7 and load bearing roller 5 more smooth；Institute It states swivelling chute 9 and plays not-go-end and be respectively 2cm apart from 5 inner wall both ends end of load bearing roller, it can be effectively reciprocal to water load-bearing drive rod 7 is divided Position-limiting action is played in movement；The Y shape support arm of support frame 6 is equipped with water hole, and there is one side support frame 6 support well to hold Principal characteristic energy, 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 The larger resistance of the formation of water is equipped with water hole by Y shape support arm and more reduces the resistance to cooling water；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, or the excessively short time too long to avoid cooling water can be trapped in removing for the big load-bearing of long span In dirty water cooling furnace roller, cooling water flow and heat dissipation contact area are effectively controlled, enhances the radial strength of spiral supporting post 4, increases simultaneously Add the heat resistance of spiral supporting post 4, extend the service life of the scale removal water cooling furnace roller of the big load-bearing of long span, reduces long span and hold greatly The thermal loss that the scale removal water cooling furnace roller of weight is taken away from high-temperature heater promotes the scale removal water cooling furnace roller of the big load-bearing of long span certainly The radiating efficiency of body.

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 of the big load-bearing of long span of high-temperature heater so that the utility model has descaling function Scale inside furnace roller can cleaning and maintenance function；Furnace roller 3, load bearing roller 5, support frame 6, divides water load-bearing drive rod at spiral supporting post 4 Stress mutually supports, is associated with each other in vertical direction between 7, enhances the structural strength of the utility model, is significantly promoted The load capacity ability of the utility model, realizes the furnace roller 3 in the use environment of high temperature, long span and big load-bearing constant Shape 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 it is cold But film-cooled heat of the water in the scale removal water cooling furnace roller of the big load-bearing of long span increases, and spiral supporting post 4 forces the cooling water speed of travel Decline, 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 heat dissipation well Performance, avoid because radiate it is unfavorable caused by 3 surface cord of furnace roller, and do not take away the furnace heat of more high-temperature heaters, Reach and has obtained good balance 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 Point；The utility model have long span, big load-bearing, scale removal, radiating efficiency it is high, it is indeformable, without dross, saving cooling water, subtract The characteristics of lacking high-temperature heater energy loss, good economy performance and energy conservation and environmental protection, while also extending the use longevity of the utility model Life.

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 1,2 and of tapering transition body 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 1,3 inner wall of furnace roller 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 load bearing roller 5 Axial centerline be equipped with axis cavity, be fixed with support frame 6, the axis of support frame as described above 6 in the cavity wall of the axis cavity A point water load-bearing drive rod 7 is fixed at the heart, 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 is discharged the roll shaft 1 of end side and passes through rotary joint 15 and be connected to motor device of rotation driving 16, the roll shaft 1 of the water outlet end side It is connect with rotary joint 15, 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 includes inner ring 111 With outer ring 113, side ring 112 is fixed between the inner ring 111 and outer ring 113, the inside of the side ring 112 is connected to plane axis 117 are held, partition ring 116 is connected on the inside of the plane bearing 117, is connected to graphite annulus 115, institute on the inside of the partition ring 116 State and 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 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 spiral branch The inside of 4 sliding contact of column, 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 cunning Dynamic 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 between 2 layers of graphite annulus 115 for can turn connect；The Y shape support arm of support frame as described above 6 is equipped with water hole；The spiral shell Circumflex branch column 4 is 3 screw augers away from being composed, and the screw pitch between the screw auger is 80mm, the thickness of screw auger For 8mm, spiral supporting post 4 is made of heat resisting steel.

The working principle of the utility model is: plane bearing 117 and 2 layer graphite annulus 115 is for graphite thrust ring 11 Itself enhancing enabling plane rotation, and slide hemisphere 118 and semi-circular recesses ring 119 is then spiral supporting post in order to further increase 4 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 well Load-bearing property, 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 cold But the larger resistance of the formation of water is equipped with water hole by Y shape support arm and more reduces the resistance to cooling water；The spiral Pillar 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, or the excessively short time too long to avoid cooling water can be trapped in removing for the big load-bearing of long span In dirty water cooling furnace roller, cooling water flow and heat dissipation contact area are effectively controlled, enhances the radial strength of spiral supporting post 4, increases simultaneously Add the heat resistance of spiral supporting post 4, extend the service life of the scale removal water cooling furnace roller of the big load-bearing of long span, reduces long span and hold greatly The thermal loss that the scale removal water cooling furnace roller of weight is taken away from high-temperature heater promotes the scale removal water cooling furnace roller of the big load-bearing of long span certainly The radiating efficiency of body.

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 utility model has descaling function, realizes high-temperature heating Scale inside the scale removal water cooling furnace roller of the big load-bearing of the long span of furnace can cleaning and maintenance function；Furnace roller 3, spiral supporting post 4, load-bearing Roller 5, support frame 6 divide between water load-bearing drive rod 7 that stress mutually supports, is associated with each other in vertical direction, enhance practical Novel structural strength significantly improves the load capacity ability of the utility model, realizes in high temperature, long span and holds greatly Furnace roller 3 is indeformable in the use environment of weight, can be competent in large high-temperature heating furnace as the big load-bearing water cooling furnace roller of long span It uses；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, spiral Pillar 4 forces the cooling water speed of travel to decline, and the heat dissipation utilization efficiency of cooling water is improved, so that the scale removal of the big load-bearing of long span Water cooling furnace roller 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 The furnace heat of high-temperature heater, the heat dissipation and high-temperature heater heat for having reached the scale removal water cooling furnace roller of the big load-bearing of long span are lost Good equalization point is obtained between mistake；The utility model have long span, big load-bearing, scale removal, radiating efficiency it is high, it is indeformable, No dross saves cooling water, reduces the characteristics of high-temperature heater energy loss, good economy performance and energy conservation and environmental protection, while also extending The service life of the utility model.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model patent It is not limited thereto, anyone skilled in the art within the technical scope disclosed by the utility model, can be easily The change or replacement expected, should be covered within the scope of the utility model.

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.