阅读说明：本技术 一种具有速度调节与轧棍自动切换功能的热轧机 (Hot rolling mill with speed regulation and automatic roller switching function ) 是由 黄萍 于 2020-08-06 设计创作，主要内容包括：本发明公开的一种具有速度调节与轧棍自动切换功能的热轧机,包括热轧机体,所述热轧机体内设有左右连通的工作腔用于连通其他冶金工艺流程的机器,所述工作腔内中间位置设有上下对称且能上下移动的热轧箱,上下两侧所述热轧箱前侧贯穿转动设有同一个升降轴,本发明通过对转机的升降调整以适应不同的轧件厚度,使热轧机能进行更多不同的热轧工艺,并在调整厚度的同时降低的转机转动的速度,使转机速度能适应不同厚度的轧件减少了热轧过程中产生的轧件断裂等工艺问题,本发明在热卷箱卷动轧件的同时对热卷箱进行智能的加热,使之后的轧件输出时达到温度均匀的效果使热轧工艺效率更高。(The invention discloses a hot rolling mill with speed regulation and automatic roller switching functions, which comprises a hot rolling mill body, the hot rolling mill body is internally provided with a working cavity which is communicated with the left and the right and is used for communicating machines of other metallurgical process flows, the middle position in the working cavity is provided with the hot rolling boxes which are symmetrical up and down and can move up and down, the front sides of the hot rolling boxes on the upper side and the lower side are provided with the same lifting shaft in a penetrating and rotating way, the invention adjusts the lifting of the rotary machine to adapt to different rolled piece thicknesses, so that the hot rolling machine can carry out more different hot rolling processes, the invention intelligently heats the coil box while rolling the rolled piece in the coil box, so that the rolled piece is output to achieve the effect of uniform temperature, and the hot rolling process efficiency is higher.)

1. The utility model provides a hot rolling mill with speed control and roll rod automatic switch-over function, includes the hot rolling organism, its characterized in that: the hot rolling machine is characterized in that a working cavity which is communicated from left to right is arranged in the hot rolling machine body and is used for communicating machines of other metallurgical process flows, hot rolling boxes which are symmetrical up and down and can move up and down are arranged at the middle position in the working cavity, the front sides of the hot rolling boxes at the upper side and the lower side are provided with the same lifting shaft in a penetrating and rotating mode, the rear sides of the hot rolling boxes at the upper side and the lower side are provided with the same lifting rod in a penetrating and sliding mode, a feeding mechanism is arranged in the hot rolling boxes, a rotating cavity is arranged above the rear wall of the working cavity in a communicating mode, a meshing cavity is arranged below the front wall of the working cavity in a communicating mode, a speed regulating mechanism which is the same in mechanism as the rotating cavity is arranged in the engaging cavity, the speed regulating mechanism is in power connection with the feeding mechanism, a conversion shaft which is symmetrical up and down is, a transmission cavity is arranged in the rear wall of the working cavity and positioned at the rear side of the conversion shaft, the upper side of the conversion shaft extends backwards into the transmission cavity and is fixedly connected with a driven straight gear, a driving straight gear meshed with the driven straight gear is arranged in the lower wall of the transmission cavity in a rotating manner, a switching motor is fixedly arranged in the front wall of the transmission cavity in the rear wall of the working cavity, the rear end face of the conversion shaft is connected with the switching motor in a power manner, the driving straight gear is connected with the switching motor in a power manner, a heat transfer cavity is arranged in the front wall and the rear wall of the right side of the working cavity in a communicating manner, a heat coil box is arranged in the heat transfer cavity in a rotating manner and penetrates through the working cavity, a switching cavity is arranged in the front wall of the heat transfer cavity, a blowing cavity is arranged in the lower wall of the rear end of the heat transfer cavity, and a heat, the air blowing mechanism is arranged in the air blowing cavity, the clutch cavity is arranged in the right wall of the air blowing cavity, the clutch mechanism is arranged in the clutch cavity, and the switching mechanism controls the clutch mechanism to be in clutch.

2. A hot rolling mill with speed regulation and automatic roll change-over functions as claimed in claim 1, characterized in that: the feeding mechanism comprises rotating cavities which are positioned in the hot rolling box and are vertically symmetrical, openings of the rotating cavities face to a symmetrical center, a feeding rotating shaft is rotatably arranged between the front wall and the rear wall of the rotating cavity, and the outer circle end face of the feeding rotating shaft is fixedly connected with a feeding rotating wheel.

3. A hot rolling mill with speed regulation and automatic roll change-over functions as claimed in claim 1, characterized in that: speed adjusting mechanism locates including rotating rotate the intracavity with the initiative runner in the meshing intracavity, it rotates the driven wheel who is equipped with right side initiative runner friction engagement to rotate the intracavity upper wall, meshing intracavity lower wall rotates and is equipped with the driven wheel who meshes mutually with left side initiative runner, the upside feed the pivot rear end and be equipped with the spline chamber of opening backward, the downside feed the pivot front end and be equipped with the forward spline chamber of opening, the spline chamber with be equipped with in the spline chamber and remove and control and want spline shaft, upside about the spline shaft left end face with fixedly connected with spline spring between the spline chamber left wall, the downside spline shaft is splined connection in upper and lower both sides respectively the pivot is fed, the upside spline shaft rear end ranging back to rotate intracavity and fixed connection in upside before the driven wheel terminal surface axle center, downside the spline shaft front end face extends to forward the meshing intracavity and fixed connection in the driven wheel downside The axis of the rear end face.

4. A hot rolling mill with speed regulation and automatic roll change-over functions as claimed in claim 3, characterized in that: the utility model discloses a gear, including rotation chamber, gear chamber, power shaft, belt chamber, power shaft, the rotation chamber back wall internal fixation is equipped with the rotation motor, the upside drive runner power connect in rotate the motor, it is equipped with the gear chamber to rotate the motor rear side, the rotation of gear intracavity antetheca rotates and is equipped with drive bevel gear, drive bevel gear rear end power connect in rotate the motor, gear chamber lower wall rotate be equipped with drive bevel gear engaged with rotation bevel gear, rotation bevel gear lower extreme axle center fixedly connected with power shaft, be equipped with the belt chamber in the gear chamber lower wall, the terminal surface extends to under the power shaft the belt chamber and the fixed action wheel that is equipped with, the rotation of belt intracavity antetheca is equipped.

5. A hot rolling mill with speed regulation and automatic roll change-over functions as claimed in claim 3, characterized in that: be equipped with the reverse gear in the belt chamber front side upper wall, the axis of rotation up end extends to in the reverse gear and fixedly connected with switching-over straight-tooth gear, the back wall rotates in the reverse gear be equipped with switching-over straight-tooth gear engaged with switching-over from the driving wheel, switching-over is from driving wheel up end axle center fixedly connected with transmission shaft, be equipped with the gear chamber in the reverse gear upper wall, the transmission shaft up end upwards extends to gear intracavity and fixed meshing bevel gear that is equipped with, gear intracavity back wall rotate be equipped with meshing bevel gear engaged with driven bevel gear, driven bevel gear rear end face axle center fixedly connected with transmission pivot, transmission pivot rear end face extends to meshing intracavity and fixed connection in downside terminal surface axle center before the initiative runner.

6. A hot rolling mill with speed regulation and automatic roll change-over functions as claimed in claim 1, characterized in that: the switching mechanism comprises a centrifugal wheel which is rotatably arranged in the switching cavity, an annular matrix in the centrifugal wheel is provided with a moving cavity with equal size, a clutch slider capable of moving up and down is arranged in the moving cavity, the clutch slider is close to one end face of the axis of the centrifugal wheel and the moving cavity is close to a clutch spring fixedly connected between end walls of the axis of the centrifugal wheel, a switching plate capable of moving up and down is arranged on the upper side in the switching cavity, a switching spring is fixedly connected between the upper end face of the switching plate and the upper wall of the switching cavity, and a switching stay cord is fixedly connected to the upper end face of the switching plate.

7. A hot rolling mill with speed regulation and automatic roll change-over functions as claimed in claim 1, characterized in that: the blowing mechanism comprises a fan which is rotatably arranged in the blowing cavity, a power rotating shaft is fixedly connected with the rotating center of the right end face of the fan, a heat inlet pipeline with a backward opening is communicated with the lower wall of the blowing cavity, and the heat inlet pipeline is connected with the ventilation position of the heating furnace during metallurgy.

8. A hot rolling mill with speed regulation and automatic roll change-over functions as claimed in claim 1, characterized in that: the clutch mechanism comprises a clutch bevel gear rotatably arranged in the clutch cavity, the rear end face of the power rotating shaft extends into the clutch cavity and is fixedly connected with the power bevel gear meshed with the clutch bevel gear, the rear wall in the clutch cavity is rotatably provided with the bevel gear meshed with the clutch bevel gear, the axle center of the right end face of the bevel gear is fixedly connected with a transmission rotating shaft, the axle center of the lower end face of the clutch bevel gear is rotatably connected with a lifting rod, the lower wall of the clutch cavity is communicated with a lifting cavity, the lifting rod extends downwards into the lifting cavity, a lifting spring is fixedly connected between the lower end face of the lifting rod and the lower end face of the lifting cavity, the lower end face of the lifting rod is fixedly connected with a connection pull rope, the connection pull rope is connected with the switching pull rope, a belt transmission cavity is arranged in the rear wall of the clutch cavity, the transmission rotating shaft, the belt drive intracavity upper wall rotates and is equipped with drive pulley, drive pulley with around being equipped with the drive belt between the driven pulley, belt drive intracavity antetheca internal fixation is equipped with the energy supply motor, drive pulley front end power connect in the energy supply motor.

9. A hot rolling mill with speed regulation and automatic roll change-over functions as claimed in claim 1, characterized in that: hollow position row becomes hot rolling chamber in the hot rolling case, hot rolling intracavity rotates and is equipped with hot spool, the preceding terminal surface of hot spool extends forward switch intracavity and fixed connection in centrifuge wheel rear end face axle center, hot spool rear end ranging back and power connect in energy supply motor, hot rolling axle excircle terminal surface fixed connection and annular matrix are equipped with the bracing piece that the size equals, the bracing piece is kept away from hot spool axle center one end fixed connection in hot rolling incasement wall, heat transfer chamber upper wall front side intercommunication is equipped with the air pipe of opening backward.

10. A hot rolling mill with speed regulation and automatic roll change-over functions as claimed in claim 1, characterized in that: the hot rolling device is characterized in that threaded rods with opposite threads are fixedly connected to the upper side and the lower side of the excircle end face of the lifting shaft, the threaded rods are respectively in threaded connection with the upper side and the lower side of the hot rolling box, a lifting motor is fixedly arranged on the upper side of the lifting shaft in the upper wall of the working cavity, and the upper end of the lifting shaft is in power connection with the lifting motor.

Technical Field

The invention relates to the technical field of metallurgical processes, in particular to a hot rolling mill with speed regulation and automatic roll switching functions.

Background

In our daily life, the metallurgical process flow is an integral flow for finally smelting and forming mined ores by screening, wherein a metal plate blank is subjected to rolling deformation by a rolling mill after high temperature reaches deformation requirements by heating, and is finally subjected to cooling deformation, hot rolling, cold rolling, forming and processing. The present invention sets forth a device that solves the above problems.

Disclosure of Invention

The technical problem is as follows:

the common hot rolling mill can not well adjust the speed according to different fed rolled pieces, and the common hot rolling mill can not solve the problem of uneven surface temperature of the workpieces in transmission, so that the hot rolling efficiency is reduced.

In order to solve the problems, the embodiment designs a hot rolling mill with the functions of speed regulation and automatic roller switching, the hot rolling mill comprises a hot rolling mill body, a working chamber which is communicated left and right is arranged in the hot rolling mill body and is used for communicating machines of other metallurgical technological processes, hot rolling boxes which are symmetrical up and down and can move up and down are arranged at the middle position in the working chamber, the front sides of the hot rolling boxes at the upper side and the lower side are provided with a same lifting shaft in a penetrating and rotating mode, the rear sides of the hot rolling boxes at the upper side and the lower side are provided with a same lifting rod in a penetrating and sliding mode, a feeding mechanism is arranged in the hot rolling boxes, a rotating chamber is arranged above the rear wall of the working chamber in a communicating mode, a meshing chamber is arranged below the front wall of the working chamber in a communicating mode, a speed regulating mechanism which is the same as the rotating, the conversion shaft is arranged between the front wall and the rear wall of the working chamber and positioned on the right side of the hot rolling box in a rotating mode, the conversion shaft is vertically symmetrical, the excircle end face of the conversion shaft is fixedly connected with a conversion wheel, a roller with different shapes and sizes is arranged on the excircle end face annular matrix of the conversion wheel and used for hot rolling a rolled piece, a transmission chamber is arranged in the rear wall of the working chamber and positioned on the rear side of the conversion shaft, the conversion shaft extends backwards to the inside of the transmission chamber and is fixedly connected with a driven straight gear, a driving straight gear meshed with the driven straight gear is arranged in the transmission chamber in a rotating mode, a switching motor is fixedly arranged in the front wall of the transmission chamber in the rear wall of the working chamber, the rear end face of the conversion shaft is connected with the switching motor in a power mode, the driving straight gear is connected with the switching motor in, the heat transfer cavity internal rotation is equipped with the hot rolling case, the hot rolling case runs through the working chamber, be equipped with the switching chamber in the heat transfer cavity antetheca, the switching intracavity is equipped with switching mechanism, be equipped with the chamber of blowing in the heat transfer cavity rear end lower wall, the chamber antetheca of blowing with heat transfer cavity rear end lower wall intercommunication is equipped with into heat pipe, the intracavity of blowing is equipped with the mechanism of blowing, be equipped with the separation and reunion chamber in the chamber of blowing right wall, the separation and reunion intracavity is equipped with clutching mechanism, switching mechanism control the clutching mechanism separation and reunion.

Preferably, the feeding mechanism comprises rotating cavities which are positioned in the hot rolling box and are vertically symmetrical, openings of the rotating cavities face to the symmetrical center, a feeding rotating shaft is rotatably arranged between the front wall and the rear wall of each rotating cavity, and the outer circle end face of the feeding rotating shaft is fixedly connected with a feeding rotating wheel.

Preferably, the speed regulating mechanism comprises a driving rotating wheel rotatably arranged in the rotating cavity and the meshing cavity, a driven rotating wheel in friction meshing with the driving rotating wheel on the right side is rotatably arranged on the upper wall in the rotating cavity, a driven rotating wheel meshed with the driving rotating wheel on the left side is rotatably arranged on the lower wall in the meshing cavity, a spline cavity with a backward opening is arranged at the rear end of the feeding rotating shaft on the upper side, a spline cavity with a forward opening is arranged at the front end of the feeding rotating shaft on the lower side, spline shafts which can move left and right and are in the size are arranged in the spline cavity and the spline cavity, a spline spring is fixedly connected between the left end surface of the spline shaft and the left wall of the spline cavity on the upper side and the left side, the spline shafts on the upper side and the lower side are respectively in spline connection with the feeding rotating shaft on, the front end face of the spline shaft at the lower side extends forwards to the inside of the meshing cavity and is fixedly connected to the lower side of the axle center of the rear end face of the driven rotating wheel.

Preferably, a rotating motor is fixedly arranged in the rear wall of the rotating cavity, the driving runner is connected with the rotating motor in a power mode, a gear cavity is formed in the rear side of the rotating motor, a driving bevel gear is arranged on the front wall of the gear cavity in a rotating mode, the rear end of the driving bevel gear is connected with the rotating motor in a power mode, the lower wall of the gear cavity is rotatably provided with a rotating bevel gear meshed with the driving bevel gear, a power shaft is fixedly connected with the lower end face of the rotating bevel gear in an axis mode, a belt cavity is formed in the lower wall of the gear cavity, the lower end face of the power shaft extends into the belt cavity and is fixedly provided with a driving wheel, a driven wheel is arranged on the front wall of the belt cavity in a rotating mode, a belt is arranged.

Preferably, be equipped with the reversing gear in the belt chamber front side upper wall, the axis of rotation up end extends to fixedly connected with switching-over straight-tooth gear in the reversing gear, the back wall rotates in the reversing gear be equipped with switching-over straight-tooth gear engaged with switching-over from the driving wheel, switching-over is from driving wheel up end axle center fixedly connected with transmission shaft, be equipped with the gear chamber in the reversing gear upper wall, the transmission shaft up end upwards extends to gear intracavity and fixed being equipped with meshing bevel gear, gear intracavity back wall rotate be equipped with meshing bevel gear engaged with driven bevel gear, driven bevel gear back end face axle center fixedly connected with transmission pivot, transmission pivot rear end face extends to meshing intracavity and fixed connection in downside driving wheel front end face axle center.

Preferably, the switching mechanism comprises a centrifugal wheel which is rotatably arranged in the switching cavity, the centrifugal wheel is internally provided with a moving cavity in the same size direction in an annular matrix arrangement mode, a clutch slider capable of moving up and down is arranged in the moving cavity, the clutch slider is close to one end face of the axle center of the centrifugal wheel and the moving cavity is close to a clutch spring fixedly connected between one end wall of the axle center of the centrifugal wheel, the switching plate capable of moving up and down is arranged on the upper side in the switching cavity, a switching spring is fixedly connected between the upper end face of the switching plate and the upper wall of the switching cavity, and a switching pull rope is fixedly connected to the upper end face of the switching.

Preferably, the blowing mechanism comprises a fan which is rotatably arranged in the blowing cavity, a power rotating shaft is fixedly connected with a rotating center of the right end face of the fan, a heat inlet pipeline with a backward opening is communicated with the lower wall of the blowing cavity, and the heat inlet pipeline is connected with a ventilation position of the heating furnace during metallurgy.

Preferably, the clutch mechanism comprises a clutch bevel gear rotatably arranged in the clutch cavity, the rear end face of the power rotating shaft extends into the clutch cavity and is fixedly connected with the power bevel gear meshed with the clutch bevel gear, the rear wall in the clutch cavity is rotatably provided with the bevel gear meshed with the clutch bevel gear, the axle center of the right end face of the bevel gear is fixedly connected with a transmission rotating shaft, the axle center of the lower end face of the clutch bevel gear is rotatably connected with a lifting rod, the lower wall of the clutch cavity is communicated with a lifting cavity, the lifting rod extends downwards into the lifting cavity, a lifting spring is fixedly connected between the lower end face of the lifting rod and the lower end face of the lifting cavity, the lower end face of the lifting rod is fixedly connected with a connection pull rope, the connection pull rope is connected with the switching pull rope, a belt transmission cavity is arranged in the rear wall of the clutch cavity, and the transmission rotating shaft extends, the belt drive intracavity upper wall rotates and is equipped with drive pulley, drive pulley with around being equipped with the drive belt between the driven pulley, belt drive intracavity antetheca internal fixation is equipped with the energy supply motor, drive pulley front end power connect in the energy supply motor.

But preferred, hollow position becomes hot roll chamber in the hot rolling case, the hot intracavity of rolling rotates and is equipped with hot spool, the preceding terminal surface of hot spool extends forward switch intracavity and fixed connection in centrifuge wheel rear end face axle center, hot spool rear end backward extension and power connect in the energy supply motor, hot spool excircle terminal surface fixed connection and annular matrix are equipped with the bracing piece that the size equals, the bracing piece is kept away from hot spool axle center one end fixed connection in hot rolling incasement wall, heat transfer chamber upper wall front side intercommunication is equipped with the air pipe of opening backward.

Preferably, the upper side and the lower side of the excircle end face of the lifting shaft are fixedly connected with threaded rods with opposite threads, the upper side and the lower side of the threaded rods are respectively in threaded connection with the upper side and the lower side of the hot rolling box, the lifting motor is fixedly arranged on the upper side of the lifting shaft in the upper wall of the working cavity, and the upper end of the lifting shaft is in power connection with the lifting motor.

The invention has the beneficial effects that: the invention adjusts the lifting of the rotary machine to adapt to different rolled piece thicknesses, so that the hot rolling machine can carry out more different hot rolling processes, and the rotating speed of the rotary machine is reduced while adjusting the thickness, so that the speed of the rotary machine can adapt to the rolled pieces with different thicknesses, thereby reducing the process problems of rolled piece fracture and the like generated in the hot rolling process.

Drawings

For ease of illustration, the invention is described in detail by the following specific examples and figures.

FIG. 1 is a schematic view of the overall structure of a hot rolling mill with speed adjustment and automatic roll switching according to the present invention;

FIG. 2 is a schematic view of the structure in the direction "A-A" of FIG. 1;

FIG. 3 is a schematic view of the structure in the direction "B-B" of FIG. 1;

FIG. 4 is a schematic view of the structure in the direction "C-C" of FIG. 1;

FIG. 5 is a schematic view of the structure in the direction "D-D" of FIG. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-5, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to a hot rolling mill with speed regulation and automatic roll switching functions, which comprises a hot rolling mill body 11, wherein a working cavity 12 which is communicated with the left and the right is arranged in the hot rolling mill body 11 and is used for communicating machines of other metallurgical process flows, hot rolling boxes 13 which are symmetrical up and down and can move up and down are arranged in the middle position in the working cavity 12, the front sides of the hot rolling boxes 13 on the upper side and the lower side are provided with a same lifting shaft 25 in a penetrating and rotating mode, the rear sides of the hot rolling boxes 13 on the upper side and the lower side are provided with a same lifting rod 24 in a penetrating and sliding mode, a feeding mechanism 101 is arranged in the hot rolling boxes 13, a rotating cavity 85 is communicated above the rear wall of the working cavity 12, a meshing cavity 27 is communicated below the front wall of the working cavity 12, a speed regulation mechanism 102 with the same mechanism is arranged in the meshing cavity 27 and the rotating cavity 85, the speed regulation mechanism 102 is in power connection with the feeding mechanism 101, upper and lower both sides change shaft 18 excircle terminal surface fixedly connected with change gear 17, change gear 17 excircle terminal surface annular matrix is equipped with the roll 19 that the shape is not of uniform size and is used for the hot rolling rolled piece, just be located in the working chamber 12 back wall change shaft 18 rear side is equipped with transmission cavity 55, the upside change shaft 18 extends backward to in the transmission cavity 55 and fixedly connected with driven spur gear 54, the lower wall rotates in the transmission cavity 55 to be equipped with driven spur gear 54 engaged with initiative spur gear 53, just be located in the working chamber 12 back wall transmission cavity 55 antetheca internal fixation is equipped with switching motor 52, downside change shaft 18 back end power connect in switching motor 52, initiative spur gear 53 power connect in switching motor 52, two walls intercommunication are equipped with heat transfer chamber 56 around working chamber 12 right side, heat transfer chamber 56 internal rotation is equipped with hot-rolling case 20, the hot coil box 20 penetrates through the working chamber 12, a switching chamber 59 is arranged in the front wall of the heat transfer chamber 56, a switching mechanism 103 is arranged in the switching chamber 59, an air blowing chamber 66 is arranged in the lower wall of the rear end of the heat transfer chamber 56, an air inlet pipeline 69 is arranged in the front wall of the air blowing chamber 66 and the lower wall of the rear end of the heat transfer chamber 56 in a communicating manner, an air blowing mechanism 104 is arranged in the air blowing chamber 66, a clutch chamber 80 is arranged in the right wall of the air blowing chamber 66, a clutch mechanism 105 is arranged in the clutch chamber 80, and the clutch mechanism 105 is controlled by the switching mechanism 103 to.

Advantageously, the feeding mechanism 101 comprises a rotating cavity 14 which is positioned in the hot rolling box 13 and is symmetrical up and down, and the opening of the rotating cavity is towards the symmetrical center, a feeding rotating shaft 16 is rotatably arranged between the front wall and the rear wall in the rotating cavity 14, and a feeding rotating wheel 15 is fixedly connected to the outer circle end surface of the feeding rotating shaft 16.

Advantageously, the speed adjusting mechanism 102 includes a driving pulley 28 rotatably disposed in the rotating cavity 85 and in the engaging cavity 27, a driven pulley 26 frictionally engaged with the driving pulley 28 on the right side is rotatably disposed on an upper wall in the rotating cavity 85, a driven pulley 26 engaged with the driving pulley 28 on the left side is rotatably disposed on a lower wall in the engaging cavity 27, a spline cavity 86 having a backward opening is disposed at a rear end of the feeding rotating shaft 16 on the upper side, a spline cavity 42 having a forward opening is disposed at a front end of the feeding rotating shaft 16 on the lower side, a spline shaft 41 having a left-right movable size is disposed in the spline cavity 42 and the spline cavity 86, a spline spring 87 is fixedly connected between a left end surface of the spline shaft 41 on the upper side and a left wall of the spline cavity 86, the spline shafts 41 on the upper side and the lower side are respectively connected to the feeding rotating shaft 16 on the upper side and the lower side, a rear end of the spline shaft 41 on the upper side, the front end surface of the lower spline shaft 41 extends forwards into the meshing cavity 27 and is fixedly connected with the axle center of the rear end surface of the lower driven runner 26.

Advantageously, a rotating motor 49 is fixedly arranged in the rear wall of the rotating cavity 85, the upper driving wheel 28 is in power connection with the rotating motor 49, a gear cavity 47 is arranged at the rear side of the rotating motor 49, a driving bevel gear 48 is rotatably arranged on the inner front wall of the gear cavity 47, the rear end of the driving bevel gear 48 is connected with the rotating motor 49, the lower wall of the gear cavity 47 is rotatably provided with a rotating bevel gear 46 engaged with the driving bevel gear 48, a power shaft 45 is fixedly connected with the shaft center of the lower end surface of the rotating bevel gear 46, a belt cavity 39 is arranged in the lower wall of the gear cavity 47, the lower end surface of the power shaft 45 extends into the belt cavity 39 and is fixedly provided with a driving wheel 44, a driven wheel 38 is rotatably arranged on the inner front wall of the belt cavity 39, a belt 40 is wound between the driven wheel 38 and the driving wheel 44, and a rotating shaft 37 is fixedly connected to the upper end face axis of the driven wheel 38.

Advantageously, a reversing gear 34 is arranged in the upper wall of the front side of the belt cavity 39, the upper end face of the rotating shaft 37 extends into the reversing gear 34 and is fixedly connected with a reversing spur gear 35, a reversing driven wheel 36 meshed with the reversing straight gear 35 is rotatably arranged on the inner rear wall of the reversing wheel 34, a transmission shaft 33 is fixedly connected with the shaft center of the upper end surface of the reversing driven wheel 36, a gear cavity 29 is arranged in the upper wall of the reversing wheel 34, the upper end of the transmission shaft 33 extends upwards into the gear cavity 29 and is fixedly provided with a meshing bevel gear 31, a driven bevel gear 30 meshed with the meshing bevel gear 31 is rotatably arranged on the inner rear wall of the gear cavity 29, the rear end face axis of the driven bevel gear 30 is fixedly connected with a transmission rotating shaft 32, and the rear end face of the transmission rotating shaft 32 extends into the meshing cavity 27 and is fixedly connected with the front end face axis of the driving rotating wheel 28 at the lower side.

Advantageously, the switching mechanism 103 includes a centrifugal wheel 62 rotatably disposed in the switching chamber 59, a moving chamber 63 with equal size and size is disposed in the centrifugal wheel 62 in an annular matrix arrangement, a clutch slider 65 capable of moving up and down is disposed in the moving chamber 63, a clutch spring 64 is fixedly connected between an end surface of the clutch slider 65 close to the axis of the centrifugal wheel 62 and an end wall of the moving chamber 63 close to the axis of the centrifugal wheel 62, a switching plate 61 capable of moving up and down is disposed on an upper side in the switching chamber 59, a switching spring 60 is fixedly connected between an upper end surface of the switching plate 61 and an upper wall of the switching chamber 59, and a switching pull rope 58 is fixedly connected to an upper end surface of the switching plate 61.

Advantageously, the blowing mechanism 104 comprises a fan 67 rotatably arranged in the blowing cavity 66, a power rotating shaft 68 is fixedly connected to the rotating center of the right end face of the fan 67, a heat inlet pipeline 71 with a backward opening is communicated with the lower wall of the blowing cavity 66, and the heat inlet pipeline 71 is connected with a ventilating position of a heating furnace in metallurgy.

Advantageously, the clutch mechanism 105 includes a clutch bevel gear 79 rotatably disposed in the clutch cavity 80, the rear end face of the power rotating shaft 68 extends into the clutch cavity 80 and is fixedly connected with a power bevel gear 70 engaged with the clutch bevel gear 79, the rear wall of the clutch cavity 80 is rotatably disposed with a bevel gear 76 engaged with the clutch bevel gear 79, the right end face axial center of the bevel gear 76 is fixedly connected with a transmission rotating shaft 77, the lower end face axial center of the clutch bevel gear 79 is rotatably connected with a lifting rod 75, the lower wall of the clutch cavity 80 is communicated with a lifting cavity 74, the lifting rod 75 extends downwards into the lifting cavity 74, a lifting spring 73 is fixedly connected between the lower end face of the lifting rod 75 and the lower wall end face of the lifting cavity 74, the lower end face of the lifting rod 75 is fixedly connected with a connection pull rope 72, and the connection pull rope 72 is connected with the switching pull rope 58, be equipped with belt drive chamber 83 in the clutch chamber 80 back wall, transmission shaft 77 extends to backward in the belt drive chamber 83 and the fixed driven pulley 78 that is equipped with, the upper wall rotates in the belt drive chamber 83 and is equipped with drive pulley 82, drive pulley 82 with around being equipped with drive belt 81 between the driven pulley 78, belt drive chamber 83 antetheca internal fixation is equipped with energy supply motor 84, drive pulley 82 front end power connect in energy supply motor 84.

Beneficially, hollow position row becomes hot roll chamber 22 in the hot-rolling case 20, the internal rotation in hot roll chamber 22 is equipped with hot spool 21, hot spool 21 front end face extends to forward switch chamber 59 interior and fixed connection in centrifugal wheel 62 rear end face axle center, hot spool 21 rear end extend backward and power connect in energy supply motor 84, hot spool 21 excircle terminal surface fixed connection and annular matrix are equipped with the bracing piece 23 that the size equals, the bracing piece 23 is kept away from hot spool 21 axle center one end fixed connection in hot-rolling case 20 inner wall, heat transfer chamber 56 upper wall front side intercommunication is equipped with the backward ventilation pipe 57 of opening.

Beneficially, threaded rods 51 with opposite threads are fixedly connected to the upper side and the lower side of the end face of the outer circle of the lifting shaft 25, the threaded rods 51 on the upper side and the lower side are respectively in threaded connection with the hot rolling boxes 13 on the upper side and the lower side, a lifting motor 50 is fixedly arranged in the upper wall of the working chamber 12 and located on the upper side of the lifting shaft 25, and the upper end of the lifting shaft 25 is dynamically connected to the lifting motor 50.

The following describes in detail the steps of a hot rolling mill with speed adjustment and automatic roller switching function in this document with reference to fig. 1 to 5:

in the initial state, the switching plate 61 is located at the lower limit position, the clutch slider 65 is located at one end close to the symmetry center, the lifting rod 75 is located at the lower limit position, and the clutch bevel gear 79 is meshed with the power bevel gear 70.

When the device works, adjustment is carried out according to different thicknesses of fed rolled pieces, at the moment, the lifting motor 50 is started in a forward rotation mode or in a reverse rotation mode, the lifting motor 50 drives the lifting shaft 25 to rotate, the lifting shaft 25 drives the threaded rods 51 on the upper side and the lower side to rotate, the threaded rods 51 drive the hot rolling boxes 13 on the upper side and the lower side to move towards the middle or away from the two sides through threaded connection, meanwhile, the hot rolling boxes 13 move to drive the feeding rotating shaft 16 to move, when the feeding rotating shaft 16 on the upper side moves upwards, the upper spline shaft 41 moves rightwards due to the elasticity of the spline spring 87, at the moment, the upper spline shaft 41 drives the upper driven rotating wheel 26 to move rightwards, the contact surface between the upper driven rotating wheel 26 and the upper driving rotating wheel 28 is changed, at the moment, the transmission speed of the upper driving rotating wheel 28 and the, at this moment, the lower spline shaft 41 moves leftwards due to the elasticity of the spring 43, the lower spline shaft 41 pushes the lower driven rotating wheel 26 to move leftwards, the contact surface between the lower driven rotating wheel 26 and the lower driving rotating wheel 28 is changed, the transmission speed between the lower driving rotating wheel 28 and the lower driven rotating wheel 26 is reduced due to the change of the friction position, the speed reduction effect is achieved, otherwise, the upper hot rolling box 13 and the lower hot rolling box 13 are closed to the middle, the transmission speed of the feeding rotating shaft 16 is increased, the effect of different feeding speeds in the process of transporting rolled pieces with different thicknesses is achieved, and the rotating speed of the rolling mill is automatically adjusted according to different rolled pieces.

When rolling work is carried out, the rotating motor 49 rotates to drive the upper driving rotating wheel 28 to rotate and drive the upper driven rotating wheel 26 to rotate, the upper driven rotating wheel 26 rotates to drive the upper spline shaft 41 to rotate, the upper spline shaft 41 drives the upper feeding rotating shaft 16 to rotate through spline connection, at the same time, the rotating motor 49 drives the right driving bevel gear 48 to rotate, the driving bevel gear 48 drives the rotating bevel gear 46 to rotate through gear engagement, the rotating bevel gear 46 rotates to drive the power shaft 45 to rotate, the power shaft 45 rotates to drive the driving wheel 44 to rotate, the driving wheel 44 drives the driven wheel 38 to rotate through belt 40 transmission, the driven wheel 38 rotates to drive the rotating shaft 37 to rotate, the rotating shaft 37 drives the reversing straight gear 35 to rotate, the reversing straight gear 35 drives the reversing driven wheel 36 to rotate through gear engagement, the reversing driven wheel 36 drives the engaging bevel gear 31 to rotate through the transmission, the driven bevel gear 30 drives the lower driving rotating wheel 28 to rotate through the transmission rotating shaft 32, the lower driving rotating wheel 28 drives the lower driven rotating wheel 26 to rotate, the lower driven rotating wheel 26 drives the lower spline shaft 41 to rotate, the lower spline shaft 41 drives the lower feeding rotating shaft 16 to rotate through a spline connection, the effect of enabling the upper feeding rotating shaft 16 to rotate anticlockwise and enabling the lower feeding rotating shaft 16 to rotate clockwise is achieved, the upper and lower side feeding rotating shaft 16 rotates to drive the feeding rotating wheel 15 to rotate at the moment, the effect of feeding rolled pieces from left to right is achieved, the switching motor 52 starts to drive the lower conversion shaft 18 to rotate clockwise at the moment, the switching motor 52 rotates to drive the driving spur gear 53 to rotate clockwise at the same time, the driving spur gear 53 drives the driven spur gear 54 to rotate anticlockwise through gear meshing, the driven spur gear 54 drives the upper conversion shaft 18 to rotate anticlockwise at the moment, the upper, the switching wheel 17 rotates to drive the roller 19 to rotate so as to achieve the effect of automatically switching the roller 19, at this time, the switching motor 52 is stopped after the switching wheel 17 to be rolled is selected, at this time, the rolled piece is driven to move rightwards by the upper side and the lower side and is hot-rolled by the switching wheel 17, then, the rolled piece after being rolled is continuously driven to move rightwards to the lower end of the hot coil box 20, at this time, the energy supply motor 84 is started to drive the hot reel 21 to rotate, the hot reel 21 drives the hot coil box 20 to rotate through the support rod 23, at this time, the hot coil box 20 rotates to wind the rolled piece to the excircle end surface of the hot coil box 20, at the same time, the hot reel 21 drives the centrifugal wheel 62 to rotate, the centrifugal wheel 62 is driven by the hot reel 21 to reach the moving speed, the clutch slide block 65 overcomes the elastic force of the clutch spring 64 to move towards the direction far away, because the switching plate 61 moves the switching pull rope 58 and is not tensioned any more, and the connecting pull rope 72 is not tensioned any more, at this time, the lifting rod 75 moves upward due to the elastic force of the lifting spring 73 and drives the clutch bevel gear 79 to move upward, at this time, the clutch bevel gear 79 is disengaged from the power bevel gear 70, when the end surface of the outer circle of the hot coil box 20 is wound to a rolled piece with a certain thickness, at this time, the rotating load of the hot coil box 20 is increased, the rotating speed of the hot coil reel 21 is decreased, the rotating centrifugal force applied to the clutch slider 65 is decreased due to the decreasing rotating speed of the centrifugal wheel 62, the clutch slider 65 starts to move toward the axis of the centrifugal wheel 62 by receiving the elastic force of the clutch spring 64, at this time, the clutch slider 65 does not touch the switching plate 61, the switching plate 61 moves downward due to the elastic force of the elastic switching spring 60 and pulls the switching pull, at this time, the clutch bevel gear 79 is engaged with the power bevel gear 70 and engaged with the bevel gear 76, the energy supply motor 84 drives the hot reel 21 to rotate and simultaneously drives the driving pulley 82 to rotate, the driving pulley 82 drives the driven pulley 78 to rotate in an accelerated manner through the transmission of the transmission belt 81, the driven pulley 78 drives the bevel gear 76 to rotate through the transmission of the transmission shaft 77, the bevel gear 76 drives the clutch bevel gear 79 to rotate through the gear engagement and drives the power bevel gear 70 to rotate, the power bevel gear 70 drives the fan 67 to rotate through the power shaft 68, at this time, the fan 67 rotates to compress the air in the blowing chamber 66 to the left and then discharge the air, at this time, the air pressure in the blowing chamber 66 is reduced, the air in the heat pipe 71 is sucked into the blowing chamber 66, at this time, the air sucked up in the heat pipe 71 is provided with a certain high temperature at this time when the heat pipe 71 is connected to the ventilation position, and flows into the hot rolling cavity 22 through the heat transfer cavity 56 to heat the hot rolling box 20, and is finally discharged to the outside through the ventilation pipeline 57, so that the effect of continuously heating the hot rolling box 20 is achieved, rolled pieces which are initially wound on the end surface of the outer circle of the hot rolling box 20 are heated, the rolled pieces are uniformly heated during subsequent rolled piece output, and the efficiency and the process precision of a hot rolling process are improved.

The invention has the beneficial effects that: the invention adjusts the lifting of the rotary machine to adapt to different rolled piece thicknesses, so that the hot rolling machine can carry out more different hot rolling processes, and the rotating speed of the rotary machine is reduced while adjusting the thickness, so that the speed of the rotary machine can adapt to the rolled pieces with different thicknesses, thereby reducing the process problems of rolled piece fracture and the like generated in the hot rolling process.

In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.