DE202010014708U1 - Axial / radial ring rolling mill - Google Patents

Abstract

Axial / Radialringwalzwerk (1, 2) with motor drives and control and / or regulating devices for controlling and influencing the rolling operations, wherein the Axialringwalzwerk (1) is arranged immediately adjacent to the Radialringwalzwerk (2).

Description

The The invention relates to an axial / radial ring rolling mill with a motor Drives and control and / or regulating devices.

State of the art

at all Axial / Radialringwalzwerken previously known are the Axialwalzwerk from Radial rolling mill at a greater distance to each other and that offset by 180 ° that means that the axial ring rolling mill and the radial ring rolling mill arranged diametrically opposite each other are.

These Arrangement of the rolling mills to each other makes the loading and unloading, especially at big too rolling rings, problematic.

Furthermore one reaches the rolling large Rings regulatory limits. Because the rolling mill is big ways return must, long hydraulic cylinders are needed, which are the adjustment movements To run have to. this leads to inevitably to control problems due to insufficient rigidity. To minimize the vibrations that occur, you have to make large following errors accept. The position of the ring to be rolled in the axial caliber determined but also the taper roller speed. The control systems and the ring bearing control of centering arms hardly guarantee to be rolled Keep ring stable. This can be too wasteful or too costly Reworking lead.

task

Of the Invention is the object of an axial / Radialringwalzwerk according to the presupposed To design genus in such a way that rings of large diameter of one meter up to 15 meters, preferably from three meters to eight meters, with great accuracy can be rolled even if these rings are to be profiled.

solution

The The object is achieved by each of the independent claims 1 to 4 independent detached from each other.

Some advantages

at the solution according to protection claim 1 is the Axialringwalzwerk immediately, that is in the lowest possible spatial Distance, arranged next to the radial ring rolling mill.

The solution protection claim 2 includes the same inventive idea, namely that the Axialringwalzwerk arranged next to the Radialringwalzwerk is, such that the machine frame and thus the axis of rotation the Radialringwalzwerkes at an acute angle to Axialringwalzwerkgerüst and thus is arranged to the axis of rotation of the radial ring rolling mill.

at the independent one solution protection claim 3, the Axialringwalzwerk is also immediate arranged next to the Radialringwalzwerk, such that the machine frame and thus the axis of rotation of the Radialringwalzwerkes at an acute angle to Axialringwalzwerkgerüst and is thus arranged to the axis of rotation of the radial ring rolling mill, with the tips of the tapered rollers always in the horizontal plane point to the center of the ring.

On the other hand beats the independent one Solution after Protection claim 4 before that although also the Axialringwalzwerk is arranged immediately adjacent to the radial ring rolling mill, wherein the Rotary axis of Axialringwalzwerkes by the control and regulating device with the tapered roller axis always on the center of the growing ring points, with increasing ring diameter, the Axialringwalz scaffolding linear to the middle of the ring, until the rolled ring in the horizontal position of the tapered rollers is arranged.

The Invention thus differs fundamentally from State of the art, in the Axialringwalzwerk and Radialringwalzwerk are arranged directly next to each other. The machine frame stands so depending on the size of the machine to the axial frame in one acute angles of for example 20 to 90 degrees. The axial frame has a Rotary and linear axis. The rotation axis automatically moves so that always the taper roller axis points to the center of the growing ring. The actuator moves so that at the beginning of the intersection of the tapered rollers in the middle of the mandrel lies. As the ring diameter increases, the tapered rollers move so far until the ring to be rolled in the rear position of Taper rollers is located. The linear movement of the Axialgerüstes can zero, depending on the size of the machine up to two thousand millimeters, preferably zero to one thousand millimeters, be.

On the main roll stand is a rolling table for receiving the ring blank. If the ring to be rolled is then rolled larger, it is mainly on a roller table or on storage rails, which also serves after rolling to remove the rolled ring. This allows a very short and easy unloading, even for large rings. In addition, eliminates the dangerous and expensive pit between axial and radial scaffolding. The main roller can be moved axially and locked in any position. This allows profiled rings only in a pre-profile to the end of rolling can be rolled to a finished profile. In this case, only the main roller chain or the inner profile of the mandrel, or both, must be moved axially. This succeeds in a forming heat, and the ring can remain lying on the rolling table. In order to enable easy shifting, instead of the previous engine-gearbox-clutch combination, a directly driving radial piston hydraulic drive can be provided.

Everything in all, it is thus possible to eliminate the disadvantages existing in the prior art completely and to propose a compact axial / radial ring rolling mill with which also very big rings from, for example, twelve Roll exactly meters and safely transported away.

Further inventive embodiments

Further inventive embodiments are in the protection claims 5 to 18 described.

to protection 5 describes an advantageous embodiment in which the Linear movement of the axial frame with the tapered roller about zero to two thousand millimeters, preferably Zero to one thousand millimeters, and more. This makes it possible, too very big Rings with outside diameters from, for example, twelve Meters tolerances to roll.

In Protection claim 6 is an embodiment described in which the device has a rolling table for receiving having the ring blank. With increasing diameter is the Ring predominantly However, on a roller table or the support rails on, the even after rolling to remove the rolled ring is used. At the Beginning of rolling is assured support by the rolling table guide of the ring blank reached, after all, a weight of 500 to 100,000 Kilograms, preferably from 1000 to 50,000 kilograms can and when hot rolling a temperature of up to 1250 ° Celsius having.

advantageously, is in accordance with protection claim 7 the rolling mills a conveyor, for Example a roller table, a walking beam or another steady funding, assigned, wherein the conveying device used for transport as well as for loading and unloading the ring. This allows a very short and easy unloading, even for large rings of up to 12000 millimeters outside diameter and a weight of up to 50000 kg. Also the already mentioned expensive and dangerous Pit between axial and radial framework is no longer necessary.

at the embodiment protection claim 8 are all or some of the roles of the roller table powered by a motor. As a result, the removal of the finished rolled Ringes relieved.

A particularly advantageous embodiment describes protection claim 9, wherein the main roller vertically motor-adjustable and lockable in the respective position and arranged such that in different calibers can be rolled.

to protection 10 describes an embodiment, in which the radial mill and / or the axial mill by directly driving radial piston motors or geared motors are driven.

Becomes an embodiment selected according to protection claim 11, so are the axial and Radialringwalzwerk assigned two spaced apart roller tables, where some or all of the tubes are motor driven.

This allows according to protection claim 12 shows the arrangement of a laser measuring device between the two Roller tables.

at the embodiment according to protection claim 13, this laser measuring device is in two, preferably arranged at right angles to each other planes, in particular in vertical and / or horizontal plane, adjustable trained and arranged.

Of the motor drive for the laser measuring device can alternately on both sides by pressure medium pressure, in particular hydraulically acting piston-cylinder unit be. Such a motor drive works reliably and accurately and allows also the respective locking of the laser device in each case predetermined position - protection claim 14th

Especially it is advantageous if, according to protection claim 15 the laser measuring device motor below the level of the roller conveyor is lowerable.

Becomes an embodiment selected according to protection claim 16, so allows the laser measuring device measuring the outer and / or inner ring diameter and the ovality the ring, with the values to a control and / or regulating device online can be forwarded.

Especially an embodiment is advantageous according to protection claim 17, wherein the laser measuring device the taper and the outer profile of Rings measures and the readings to the control and / or regulating device indicates the positions of the mandrel bearing based on the measured values are correctable.

at a preferred embodiment The invention are according to protection claim 18 preferably on opposite Pages in the area of the radial ring rolling mill and the axial ring rolling mill each a motorized centering device with a centering and a centering roller arranged. These centering rollers touch the outer periphery the rings to be rolled, wherein the thereby caused rotation signals to a control and / or regulating device of the motor drives of Axial rolling mill forwarded and the speed can be influenced accordingly is.

All Control and / or regulating devices of the motor drives of Radialringwalzwerkes and the Axialringwalzwerkes and all Adjustments for these rolling mills and for the laser device can in a CNC control be included in a central control and / or regulation in an electronic memory for the different to be rolled Ring blanks specified signal and guideline values with the tolerances has stored and according to the drives of the rolling mills, their positions and also the drives of the roller tables and the laser device, preferably included in a sequence control, controls and / or regulates.

In the drawing is the invention - partly schematic - for example illustrated. Show it:

1 an axial / Radialringwalzwerk in perspective view;

2 the end 1 apparent axial / Radialringwalzwerk with an already partially rolled ring;

3 a plan view of the 1 apparent axial / radial ring rolling mill;

4 a plan view too 2 ;

5 a detail from the 1 to 4 with a laser measuring device, partly in section, and

6 a similar representation as 5 , but with an already partially rolled ring, resting on a roller table.

In the drawing, the reference numeral 1 an axial ring rolling mill and with the reference numeral 2 denotes a radial ring rolling mill. The axial ring mill 1 has a substantially vertically extending framework 3 on, the one in the vertical direction, ie in the direction X or Y on the scaffold 3 about guides 4 positively guided sled 5 assigned. The sled 5 is powered by a motor drive, z. B. a delivery cylinder 6 , which is designed as a piston-cylinder unit, acted upon by fluid pressure, in particular by a hydraulic medium and thus controlled, whereby then the carriage 5 in the direction of X or Y, for example, height-adjustable by 1000 millimeters and in the desired altitude also on the Zustellzylinder 6 or the like can be locked. The delivery cylinder 6 is over a line 7 a suitable fluid under pressure, for example, hydraulic fluid supplied controlled.

The sled 5 is also an adjustable in direction A or B slide 8th associated with that also a motor-controllable rotary drive, for example a rotary cylinder 9 is associated with a pivoting of the upper and lower tapered roller 10 in the direction of T and V by an angular extent of 20 to 90 degrees, ie in each case by 10 to 45 degrees on both sides of a longitudinal center axis 11 the upper and lower tapered roller 10 allowed. In this way, the upper tapered roller can be 10 both in the direction of X or Y and in the direction of A or B, but also in the direction of T and V, adjust and control and lock motor in the selected height and angle position as well. To adjust in the direction of A or B is a motor drive, z. B. a Linearverstellzylinder 12 , which is also designed as a piston-cylinder unit and the lines over 13 respectively. 14 a suitable fluid under pressure, in particular a hydraulic medium, can be supplied in a controlled manner.

The rotary cylinder 9 is also a suitable fluid under pressure, preferably a hydraulic medium, for example via the line 15 , fed controlled. From the drawing it can be seen that the longitudinal center axis 11 , which also coincides with the longitudinal center axis of the upper tapered roller 10 coincides, in the illustrated embodiment at an acute angle of 20 to 90, preferably from 30 to 70, to be rolled to a ring blank 16 ( 5 ) is adjustable and lockable. An already wholly or partially rolled ring is denoted by the reference numeral 17 designated. The ring blank 16 lies on a table 18 on while the ring to be rolled 17 increasing in diameter on two spaced roller tables 19 . 19a is arranged. All or some of the roller tables 19 . 19a can be driven by a motor, for example around the ring 17 to be transported in the direction D after being finished rolled.

The upper cone roller opposite roller is denoted by the reference numeral 20 designates and moves all axes except the XY direction like the upper tapered roller 10 ,

With the reference number 21 is called a main roller cassette in which a shaft 22 in Bearings is rotatably arranged, on which a main roller 23 of the radial ring rolling mill 2 is rotatably arranged. The main roller cassette 21 is positioned in the radial frame.

With 25 is a rolling mandrel of the radial ring rolling mill 2 designated, which is arranged substantially vertically and in an upper roll mandrel bearing 26 and a lower roll mandrel bearing 27 is arranged and through a central opening of the ring blank 16 ( 5 ) passes through.

The upper roll mandrel bearing 26 and the lower roll mandrel bearing 27 is ever a motor drive 28 respectively. 29 assigned. These motor drives can also be designed as piston-cylinder units, which alternately on both sides via lines 30 respectively. 31 Fluid under pressure, preferably a hydraulic medium, are fed alternately controlled to the rolling mandrel 25 in the direction of E or F, preferably in a horizontal plane, controlled to adjust and also to lock in the respective desired position.

The motor drive for the main roller cassette 21 is with the reference numeral 32 designated. This motor drive 32 can also represent a piston-cylinder unit, which via a line 33 a fluid under pressure, also preferably a hydraulic medium, is supplied alternately controlled on both sides to the main roller cassette 21 in the vertical direction, ie in the direction of O or P to adjust and in the respective desired position within the radial roller carriage 24 also to lock.

The reference number 34 denotes a motor drive for the main roll 23 , This drive can be designed, for example, as a radial piston drive or as a geared motor.

As you can see from the drawing, the two roller tables 19 and 19a with gap distance 35 arranged to each other. In this gap distance 35 there is a laser measuring device 36 that have a motor drive 37 , in this case also via a piston-cylinder unit, in the direction of G or H and optionally via the same motor or a separate motor in the direction L or M, thus orthogonal to the roller tables 19 and 19a , which can be driven to the laser measuring device 36 if necessary below the level of the roller tables 19 . 19a Lower, but they also in the direction of G or H depending on the ring diameter or during rolling with the growth of the ring 17 to be able to adjust. About the laser measuring device 36 can be the taper and the outer profile of the ring 17 continuously measure and transmit the measured values to a central control and / or regulating device 38 forward and the position of the rolling mandrel bearings 26 and 27 correct using the measured values. The lowering device for the drive of the laser device in the direction of L and M and to the locking is denoted by the reference numeral 39 designated.

With the reference numerals 40 to 47 are drive groups with suitable fluid drive devices, for example, hydraulic drive devices with valves, reservoirs for fluid, pumps, motors, designated by the various lines shown all engines, such as piston-cylinder units, and drives, with drive power, in particular with hydraulic pressure medium , supply. In the control device 38 If necessary, there may also be a suitable electronic memory in which suitable parameters for the various rings, materials, profilings or the like are stored, by means of which the various drives are controlled via the control or regulating device 38 be controlled or regulated as part of a sequential control to rings 17 to produce in the desired manner.

The pumps and / or motors of the drive groups 40 to 47 can by the control and / or regulating device 38 adjustable in their delivery, in particular be designed adjustable. For this purpose, for example, hydrostatic pumps may be considered, which are control tube or control of the control of the flow rate to change the flow rate of the respective pump. But it is also possible to control the speed of pumps or to regulate to supply the respective motor drives accordingly with energy. The different drive groups 40 to 47 can also be multi-way valves, not shown, for example, solenoid valves, assigned, which also by the control or regulating device 38 be influenced to influence the respective pressure medium in the various lines. The entire control or regulating device may be formed numerically (NC).

With the reference numerals 48 and 49 each has a centering assigned, each about an axis 50 respectively. 51 in the direction of K and N is pivotally movable by a limited angular extent. The centering arms 48 and 49 each by a motor drive 52 respectively. 53 actuated. These motor drives 52 and 53 can also be designed as a piston-cylinder units, which can be acted upon on both sides alternately via lines shown with a suitable pressurized fluid, in particular with a hydraulic medium.

Each of the centering arms 48 . 49 is ever a centering roller 54 respectively. 55 associated, rotatably mounted on the respective centering 48 respectively. 49 arranged eats and to roll the outer diameter of the the rings 17 scans. The measured values are sent to the control device 38 forwarded, each centering 48 respectively. 49 through the motor drive 52 respectively. 53 is positionable. The rotation signals of the centering rollers 54 and 55 are in the form of control or regulating signals via the control and regulating device 38 to the corresponding motor drives of Axialringwalzwerkes 1 forwarded to affect its speed accordingly, for example, when the ring to be rolled 17 in its outer shape, for example, should differ from its predetermined diameter tolerances, for example, assumes an oval shape, so that one or the other role of the outer diameter of the ring 17 would take off. The control or regulation of the speed of the axial ring rolling mill 1 is then influenced so that the ring 17 maintains or regains its shape within specified tolerances.

Should the finished rolled ring 17 be transported in the direction D, the laser measuring device 36 lowered and by driving all or more of the roller tables 19 and 19a transported away in direction D.

As you can see from the drawing, the longitudinal axes form 11 of the axial ring rolling mill 1 on the one hand and 56 of the radial ring rolling mill 2 on the other hand an acute angle α to each other, which in the illustrated embodiment is about 20 to 90 degrees, preferably about 30 to 70 degrees.

The in the protection claims and described in the description and apparent from the drawing Features can both individually and in any combination for the realization be essential to the invention.

LIST OF REFERENCE NUMBERS

1

Axialringwalzwerk

2

Radial ring rolling mill

3

framework

4

guides

5

carriage

6

feeding cylinder, motor drive

7

management

8th

carriage

9

Rotary cylinder, Rotary drive, motor

10

Taper roller, upper

11

Longitudinal central axis

12

Linearverstellzylinder, Drive, motor

13

management

14

management

15

management

16

ring blank

17

ring

18

Table, roller table

19

roller table

19a

roller table

20

roller

21

Main roll cassette

22

wave

23

main roll

24

Radial roller carriage

25

rolling mandrel

26

Roll mandrel camp upper

27

Roll mandrel camp lower

28

Drive, motorized

29

Drive, motorized

30

management

31

management

32

Drive, motor, piston-cylinder unit

33

management

34

Drive, motor, piston-cylinder unit

35

gap distance

36

Laser measuring device

37

Drive, motor, piston-cylinder unit

38

Control / regulating device

39

lowering

40

drive group

41

drive group

42

drive group

43

drive group

44

drive group

45

drive group

46

drive group

47

drive group

48

centering

49

drive group

50

axis

51

axis

52

Drive, Motorized, piston-cylinder unit, the centering arm 48

53

Drive, Motor, piston-cylinder unit, the centering 49th

54

flipper

55

flipper

56

longitudinal axis of the radial ring rolling mill 2

α

angle between the longitudinal axes of the radial and axial ring rolling mill

A

stroke direction of the carriage 5 in the axial direction of the tapered roller 10th

B

stroke direction of the carriage 5 in the axial direction of the tapered roller 10th

D

removal direction of the ring 17

e

stroke direction of the rolling mandrel bearing 26

F

stroke direction of the rolling mandrel bearing 26

G

stroke direction the motor drive 37 for laser measuring devices 36

H

stroke direction the motor drive 37 for laser measuring devices 36

K

pan direction the Zentrierarms 48, 49th

L

stroke direction the laser measuring device 36 orthogonal to the roller tables 19, 19a

M

stroke direction the laser measuring device 36 orthogonal to the roller tables 19, 19a

N

pan direction the centering arm 48, 49

O

stroke direction the main roller cassette 21

P

stroke direction the main roller cassette 21

T

stroke direction

V

stroke direction

X

stroke direction of the carriage 5 of the axial ring rolling mill. 1

Claims (18)

Axial / radial ring rolling mill ( 1 . 2 ) with motor drives and control and / or regulating devices for controlling and influencing the rolling processes, wherein the axial ring rolling mill ( 1 ) immediately next to the radial ring rolling mill ( 2 ) is arranged. Axial / radial ring rolling mill ( 1 . 2 ) with motor drives and control and / or regulating devices for controlling the rolling operations, the axial ring rolling mill ( 1 ) immediately next to the radial ring rolling mill ( 2 ) is arranged such that the machine frame of the radial ring rolling mill ( 2 ) at an acute angle (α) to the Axialringwalzwerkgerüst and thus to the axis of rotation of the Radialringwalzwerkes ( 2 ) is arranged. Axial / radial ring rolling mill ( 1 . 2 ) with motor drives and control and / or regulating devices for controlling the rolling operations, the axial ring rolling mill ( 1 ) immediately next to the radial ring rolling mill ( 2 ) is arranged such that the machine frame is arranged at an acute angle (α) to Axialringwalzwerkgerüst, wherein the tip of the tapered roller ( 10 ) always points to the center of the ring in a horizontal plane. Axial / radial ring rolling mill ( 1 . 2 ) with motor drives and control and / or regulating devices for controlling the rolling operations, the axial ring rolling mill ( 1 ) immediately next to the radial ring rolling mill ( 2 ) is arranged such that the machine frame at an acute angle (α) to the Axialringwalzwerkgerüst and thus to the axis of rotation of the Radialringwalzwerkes ( 1 ), wherein the axis of rotation of the Axialringwalzwerkes ( 1 ) by a control and regulating device ( 38 ) with the tapered roller axis always on the center of the growing ring ( 17 ), wherein with increasing ring diameter, the Axialwalzengerüst moves linearly to the center of the ring until the rolled ring ( 17 ) in the rear position of the tapered rollers ( 10 ) is arranged. Axial / Radialringwalzwerk according to claim 1 or one of claims 2 to 4, characterized in that the linear movement (A or B) of the axial framework ( 3 ) with the tapered rollers ( 10 ) is about 0 to 2000 millimeters, preferably 0 to 1000 millimeters and more. Axial / Radialringwalzwerk according to claim 1 or one of the subsequent claims, characterized in that the device is a rolling table ( 18 ) for receiving the ring blank ( 16 ) having. Axial / Radialringwalzwerk according to claim 1 or one of claims 2 to 6, characterized in that the rolling mills ( 1 . 2 ) a conveyor device ( 19 . 19a ), for example a roller table, a lifting beam or other continuous conveying means, wherein the conveying device ( 19 . 19a ) for carrying and for loading and unloading the rolled and rolled ring ( 17 ) serves. Axial / Radialringwalzwerk according to claim 7, characterized in that all or some of the rollers of the roller table ( 19 . 19a ) are driven by a motor. Axial / radial ring rolling mill according to claim 1 or a the claims 2 to 8, characterized in that the main roller vertically motor adjustable and lockable in the respective position and so arranged arranged that rolled in different calibers can be. Axial / Radialringwalzwerk according to claim 1 or one of claims 2 to 9, characterized in that the radial ring rolling mill ( 2 ) and / or the axial ring rolling mill ( 1 ) is driven by directly driving radial piston motors or geared motors. Axial / Radialringwalzwerk according to claim 1 or one of the subsequent claims, characterized in that the axial and Radialringwalzwerk ( 1 . 2 ) two spaced apart roller tables ( 19 . 19a ) are assigned, in which some or all roles are driven by a motor. Axial / radial ring rolling mill according to claim 11, characterized in that between the two roller conveyors ( 19 . 19a ) a laser measuring device ( 36 ) is arranged. Axial / radial ring rolling mill according to claim 12, characterized in that the laser measuring device ( 36 ) in two, preferably at right angles arranged planes, in particular in the vertical and horizontal plane, adjustable and lockable in the respective position is formed. Axial / radial ring rolling mill according to claim 13, characterized in that the motor drive of the laser measuring device ( 36 ) is an alternating on both sides by pressure medium pressure, in particular hydraulically, to be acted upon piston-cylinder unit. Axial / radial ring rolling mill according to claim 12 or 13, characterized in that the laser measuring device ( 36 ) motor below the level of the Rohganges ( 19 . 19a ) is lowered. Axial / Radialringwalzwerk according to claim 12 or one of the subsequent, characterized in that the laser measuring device ( 36 ) the outer and / or inner ring diameter and the ovality of the ring ( 17 ) and the values are sent to the control and / or regulating device ( 38 ) redirects online. Axial / radial ring rolling mill according to claim 16, characterized in that the laser measuring device ( 36 ) the conicity and outer profile of the rings ( 17 ) and that the measured values are sent to the control and / or regulating device ( 38 ) and the position of the rolling mandrel bearings ( 26 . 27 ) is correctable on the basis of the measured values. Axial / Radialringwalzwerk according to claim 1 or one of claims 2 to 17, characterized in that at least one side, preferably on opposite sides in the region of the radial ring rolling mill ( 2 ) and the Axialringwalzwerkes ( 1 ) each a motorized centering device, each with a centering arm ( 48 . 49 ) and a centering roller ( 54 . 55 ) is arranged, which the outer periphery of the roll to be rolled ( 17 ) touches or guides or scans, the centering arm ( 48 . 49 ) by a respective motor drive, for example, one each on both sides by pressure medium pressure, in particular hydraulically, to be acted upon piston-cylinder unit ( 52 . 53 ) is positionable, wherein each of the centering roller ( 54 . 55 ) discontinued rotational signals to the control and / or regulating device ( 38 ) of the motor drives, for example, of the axial ring rolling mill ( 1 ) and / or the radial ring rolling mill ( 2 ) are routable and control the speed accordingly or regulate.

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