Frame base for two or more frame of a rolling mill

Abstract

The present application relates to a stand base (10) for two or more stands (14) of a rolling mill arranged one after the other in a rolling direction (W) of a material to be rolled, the stand base (10) comprising two or more receiving modules (12) arranged one after the other, the two or more receiving modules are secured to a common lower base frame (32) and a common upper cover frame (34).

Description

TECHNICAL FIELD

[0001] The invention relates to a stand base for two or more stands of a rolling mill, which are arranged one after the other in the rolling direction of the material to be rolled. BACKGROUND

[0002] Rolling mills from the aforementioned technical field have been known for decades in principle. Circular products are typically produced by such rolling mills, which successively pass through a plurality of stands in order to be gradually adjusted to the desired shape and size of a semi-finished or finished product starting from a starting product.

[0003] In this context, it has been customary hitherto to design a rolling mill for a predetermined number of stands arranged one after the other. It is typical for each rolling mill to have four stands, which are always designed in pairs in such a way that the rolls of the stands contact the material to be rolled at points which are not contacted in the preceding stands. In this context, reference is made to the Y-shaped arrangement and the inverse Y-shaped arrangement which always alternate with each other in the case of three-roll stands.

[0004] The rolling mill can receive all stands together. A rolling mill for rolling rod-shaped or tube-shaped products is known from DE 10 2016 217 202 B4, which comprises two or more stands arranged one after the other in the rolling direction of the material to be rolled. The rolling mill comprises at least one measuring device arranged in front of the stands, between the stands or behind the stands in the rolling direction in order to control or adjust the rolling speed in at least one of the stands on this basis.

[0005] The disadvantage of the rolling mill known from the prior art is that it can only receive the entire body of all stands together and thus cannot be flexibly adjusted according to different requirements.

[0006] The disadvantage of the method of determining the forces acting between the stands and the forces acting on the rolling mill from the outside, for example due to a roughing mill or an intermediate mill, is the influence of the common stand clamping on the measurement signals, which distorts them. SUMMARY

[0007] Against this background, it is the object of the invention to develop a rolling mill from the prior art in such a way that it can be more flexibly adjusted according to different requirements regarding the number and arrangement of the stands received in the rolling mill.

[0008] This object is achieved by a stand base according to claim 1. Advantageous embodiments of the invention emerge from the dependent claims.

[0009] A stand base for two or more stands of a rolling mill, the two or more stands being arranged one after the other in a rolling direction of material to be rolled, the stands each comprising more than four side surfaces which together form a periphery of the stand, seen in the rolling direction, the stand base comprising two or more receiving modules individually mounted in the base, each receiving module being designed to receive one of the stands through a lateral opening in such a way that the receiving module covers four of the side surfaces of the stand and more than half of the periphery. The stand base comprises a protective cover plate between all the receiving modules arranged adjacent to one another on the side of the lateral opening in order to protect the intermediate space between the adjacent receiving modules from bars escaping from the intermediate space or escaping water and to prevent a person from reaching into the intermediate space.

[0010] The stand base is thus designed in a modular manner in that it comprises a plurality of receiving modules which in each case can receive a single stand. In this case, the receiving modules of the stand base would distinguish the stand base in combination with a rolling mill from individual stand bases outside the combination of a rolling mill. In connection with the invention, the receiving modules are part of the stand base of a rolling mill.

[0011] The receiving modules make it possible to receive individual stands in the individual receiving modules and thus to use the rolling mill in a flexible manner. Furthermore, since the receiving modules make a modular design possible, the rolling mill can be produced and designed in a more cost-effective manner.

[0012] The opening is lateral in nature and in relation to the rolling direction. Seen in the rolling direction, the receiving modules are thus positioned one after the other and in each case can receive a stand from a direction transverse to the rolling direction. In this case, the stands are all received from the same side of the receiving modules, for example when the stands are exchanged in order to be serviced or in order to be replaced by stands with a different calibration size.

[0013] In order to be able to introduce the stands sideways into the receiving modules, the receiving modules comprise an opening on one side at least sometimes. The stand base can also be accessed from this side in order to exchange the stands. This also means that a person can be as close as possible to the stands on this side of the stand base.

[0014] The receiving modules are designed to receive a rack with more than four side surfaces in each case. Preferably, the racks each comprise six side surfaces, and the outer shape of the six side surfaces, viewed in the rolling direction, forms a regular hexagon. Alternatively, the receiving modules can also be designed to receive a rack with four side surfaces in each case. In order to receive the racks securely, the receiving modules have a shape which corresponds to the shape of the racks. This means that the shape of the receiving modules is mainly the negative of the outer shape of the parts of the racks which the receiving modules receive. The fact that each of the receiving modules is designed to cover four of the preferably six side surfaces of a rack means, in particular, that the receiving modules comprise surfaces which some of the side surfaces of the racks abut partially or are surrounded by, so that the racks are mounted securely and stably in the receiving modules. For this purpose, further structural measures can also be taken, in particular clamping blocks, straps or anchors. For racks with four side surfaces, the receiving modules can be designed to cover three of the side surfaces of the racks.

[0015] In the case of a modular design of the rack bed with a plurality of receiving modules, it must be ensured that the intermediate spaces between the receiving modules are fixed. This is because, in the operation of the rolling mill, a large amount of material to be rolled, usually steel, is guided through the rolling mill at high speed and high temperature. During rolling, therefore, a so-called jam can occur, in which the material to be rolled is not received correctly by the racks and piles up in front of the racks. If the rolling mill were not fixed, the material to be rolled could escape from the rolling mill in an uncontrolled manner, which is of course not acceptable, for example in terms of occupational safety. Furthermore, a large amount of cooling water escapes from between the racks of the rolling mill into the surroundings, which should also be shielded.

[0016] For this purpose, a protective cover plate or a plurality of protective cover plates are used, which are arranged on the sides of the lateral openings of at least two receiving modules and cover the intermediate spaces.

[0017] For the rack bed, the receiving modules are preferably mounted in the bed by means of a common lower bed frame. The bed frame absorbs forces which act on the racks received in the receiving modules in the rolling direction during operation and thus prevents them from being introduced directly into the bed. Thus, a greater stability of the rack bed and thus a higher accuracy of the relative positions of the racks in the receiving modules with respect to one another is ensured. In this case, the bed frame preferably extends along the rolling direction over the entire extent of the rolling mill, but can also cover only a smaller length, and thus the rolling mill can comprise a plurality of such bed frames. However, the receiving modules can also be mounted directly in the bed without a bed frame.

[0018] Preferably, each of the receiving modules comprises an operating substance connection pointing towards the lateral opening, in order to be able to supply the stand with operating substances. By way of example, the operating substances are water, in particular cooling water for the rolls, optionally for the roll guides, or for the material to be rolled, and compressed air, in particular for sealing the stand. Each of the receiving modules can also preferably comprise a plurality of operating substance connections. If each of the receiving modules comprises one or more operating substance connections, the stand can in particular be inserted into the rolling mill in a modular manner, for the operation of which substances supplied by operating substances are necessary or advantageous. In this way, for example, the uniform connections of the receiving modules can be designed such that all stands fit all receiving modules and can be connected thereto at the operating substance connections. The operating substance connections are advantageously aligned to the lateral opening, meaning that they point in the direction of the lateral opening and are easily accessible from this direction. In this case, the operating substance connections are preferably designed in such a way that a correspondingly designed stand is directly connected to one or more of the operating substance connections by being pushed into the receiving module. By way of example, this can be possible by means of a connection socket pointing towards the lateral opening, into which a corresponding connector on the stand can be pushed when the stand is pushed into the receiving module. However, such a kind of operating substance connection is not necessary.

[0019] Advantageously, each of the receiving modules comprises a holder for an electric or hydraulic remote adjustment member of a stand. The stands received in the receiving modules can comprise adjustable rolls. Adjustable rolls and in particular mechanisms for adjusting the rolls are already known in principle. It is also known to activate the rolls automatically by means of a remote adjustment member. An alternative adjustment is to adjust the rolls manually by means of a hand actuated tool. For the remote adjustment member, an electrically, hydraulically or otherwise driven shaft is provided, which applies an adjustment torque to a corresponding adjustment mechanism of the stand via a coupling.

[0020] According to the preferred features described above, each receiving module is provided with a holder for a remote adjustment member of a roll of a stand. In particular, the holder can be (for example) a bearing of an adjustment shaft or of a coupling, such that the adjustment shaft or coupling is held in the correct position in order to interact with a stand pushed into the receiving module. For this purpose, the stand can comprise a coupling, which can be coupled to a coupling of a remote adjustment member of the stand. In a preferred embodiment, the holder for a remote adjustment member of a stand makes the remote adjustment member ready or not ready depending on the design of the stand housing. In this regard, the presence of the holder does not depend on the design of the stand, but allows the stand base to be particularly universally used for different stands with and without a remote adjustment member. However, the holder can also be omitted.

[0021] Advantageously, each of the receiving modules comprises a holder for an electric or hydraulic remote adjustment member of the roll guide attached to the stand. Similar to the adjustable rolls of the stand, the rolls of the roll guide attached to the stand are also adjustable. Adjustable rolls similar to the adjustable rolls are known in principle for a long time. It is also known to activate the rolls automatically by means of a remote adjustment member. One alternative adjustment of the rolls is to adjust the rolls manually by means of a hand actuated tool or a roll holder preloaded by a spring force, so that the rolls cannot be adjusted from the outside. For the remote adjustment member of the roll guide, an electrically, hydraulically or otherwise driven shaft is provided, which applies an adjustment torque to the corresponding adjustment mechanism of the roll guide via a coupling.

[0022] According to the preferred features described above, each receiving module is provided with a holder for a remote adjustment member of the roll guide. In particular, the holder can be, for example, a bearing of the adjustment shaft or of the coupling, so that the adjustment shaft or the coupling is held in the correct position in order to interact with the roll guide of the stand pushed into the receiving module. For this purpose, the roll guide can comprise a coupling, which can be coupled to the coupling of the remote adjustment member. In a preferred embodiment, the holder for the remote adjustment member of the roll guide makes the remote adjustment member ready or not ready depending on the design of the stand housing. In this regard, the presence of the holder does not depend on the design of the stand and its roll guide, but allows a particularly versatile use of the stand base. However, such a holder of this kind can also be omitted.

[0023] Preferably, each stand is stably received in the receiving module in which it is received, for example by means of clamps or in another way, so that forces acting on the stand, in particular on the material to be rolled, are transmitted to the receiving module. The stand is detachably received in the receiving module, so that the receptacles, in particular the clamping devices, can be released and thus the stand is released for the exchange of the stand. The stable reception fixes the stand in its receiving module.

[0024] Thus, forces acting on the stand can be released and measured independently of forces acting on other stands, so that it is possible to improve the control or regulation of the rolling process.

[0025] Preferably, each of the receiving modules is mounted at the bottom to the base, so that the receiving modules can be tilted along the rolling direction, each of the receiving modules resting on its own counter bearing. It is particularly preferred if each of the receiving modules is mounted in the base by means of a base frame, the receiving modules being mounted on the base frame in a torque-free manner, so that the receiving modules can be tilted along the rolling direction.

[0026] If the receiving module is mounted articulated, for example, the receiving module is mounted in a torque-free manner. For this purpose, the receiving module can be positioned on a joint, but it is also possible to arrange it on an edge or the like, which allows tilting in the rolling direction. It is important for the torque-free mounting that the mounting of the receiving module in the base or on the base frame does not counteract the tilting movement of the receiving module with any significant torque, i.e. that no significant force has to be applied to tilt the receiving module in the rolling direction.

[0027] The fact that the receiving module can be tilted in the rolling direction means that it can be tilted about an axis which extends perpendicular to the rolling direction and preferably horizontally. Due to the torque-free mounting, the receiving module can preferably be arranged so as to be off-center with respect to the receiving module about its axis of tilting. Further preferably, the axis is offset downstream from the center of the receiving module in the rolling direction. As explained above, if the receiving module is mounted in a torque-free manner at the bottom, the counter bearing at the top results in a stable arrangement. In the case of an off-center arrangement of the receiving module about its axis of tilting downward, the receiving module rests on the counter bearing at the top due to the tilting moment of the receiving module caused by gravity.

[0028] The torque-free mounting of the receiving module makes it possible to tilt the receiving module independently of the other receiving modules of the rack base and to determine the force acting on the rack in the rolling direction via the counter bearing without having to change the position of the receiving module in the process. This enables more precise handling of the material to be rolled. However, the receiving module can also be fixedly mounted in the base, in particular the base frame, or be displaceable. Alternatively, the receiving module can also be mounted in a torque-free manner at the top so that it can be tilted in the rolling direction and can rest on the counter bearing at the bottom.

[0029] Preferably, a force measuring device is arranged between the receiving module and the counter bearing in such a way that the force acting on the received rack in the receiving module in the rolling direction can be measured. For example, the device listed in DE 10 2016 217 202 B4 can be used as a force measuring device, i.e. in particular a piezoelectric measuring device, since piezoelectric elements have a high measuring sensitivity and a high stiffness even under significant loads. Other force measuring devices are also possible. Using the force measuring device, it is possible to determine the force acting on the individual rack in the rolling direction. Due to the torque-free lower mounting of the receiving module, the force exerted on the rack acts in the rolling direction as a torque about the axis of the torque-free mounting and thus as a force on the counter bearing. Since each receiving module is mounted in a torque-free manner independently of the other receiving modules of the rack base, the force acting on each individual rack in the rolling direction can be determined in this way. This force can be used to control or adjust the rolling process in order to achieve better rolling results. However, it is also possible to omit the force measuring device.

[0030] It is particularly preferred that a limiting element is arranged between the receiving module and the counter bearing in order to protect the force measuring device from overloading. By way of example, this can be a stop which limits the spring travel of a spring-based force measuring device and thus prevents excessive deformation of the force measuring device. However, a limiting element of this kind is not essential.

[0031] Advantageously, the counter bearing of the receiving module is fastened to a common cover frame. Similar to the common base frame, the cover frame absorbs forces acting in the rolling direction on the stands received in the receiving module during operation and thus prevents the forces from being introduced directly into the cover structure. Thus, a greater stability of the stand base and thus a higher accuracy of the relative position of the stands with respect to one another in the receiving module is ensured. In this case, the cover frame preferably extends along the rolling direction over the entire extension of the rolling mill, but can also cover only a smaller length and thus the rolling mill can comprise a plurality of such cover frames. However, it is also possible to fasten the counter bearing directly in the cover structure.

[0032] Advantageously, each receiving module comprises a longitudinal drive with gripper means, so that the stands can be pushed into and out of the receiving module through the lateral opening.

[0033] By way of example, the longitudinal drive can be a hydraulic cylinder or an electric drive which is strong enough to be able to pull the stands into the receiving module and push them out of the receiving module. This movement through the lateral opening makes it possible to exchange the stands for maintenance or other reasons. Alternatively, an externally designed device can be used to introduce the stands into the receiving module or to remove them from the receiving module.

[0034] Hooks, carabiners, sliding rails or other means can be used as gripper means. The specific design of the gripper means can be matched to the stands provided for the receiving module. It is also conceivable for adapters for different gripper means to be operatively connected to the longitudinal drive in order to be able to be used for different stands. However, generally, the stand base is designed for a predetermined type and shape of stand, so that generally no adapters of this kind will be required.

[0035] Advantageously, two different receiving modules for receiving stands in two different arrangements are arranged alternately one behind the other. In the case of three-roller stands, the different arrangements can be a Y-arrangement and a counter-Y-arrangement. Stands comprising more or fewer rollers can be corresponding arrangements of stands which complement one another to form a circular roller. If the material to be rolled is not intended to be rolled into a circle, different arrangements can also be arranged alternately if this is advantageous for the rolling result. However, this is not necessarily the case.

[0036] The protective cover plates are preferably designed pivotable hydraulically or electrically. However, the protective cover plates can also be pivoted manually or can be removed and attached to the intermediate space in another way. The hydraulically or electrically pivotable design of the protective cover plates makes it particularly easy to protect the intermediate space in a controlled, reliable and documented manner.

[0037] Advantageously, the protective cover plates comprise closable openings in order to allow for a temporary access to the intermediate space. For example, the temporary access to the intermediate space can be due to a manual operation of the roll guide. Thus, in order to allow for a temporary access to the intermediate space, the protective cover plates do not have to be completely removed (for example, pivoted open), which allows for a more efficient operation of the rolling mill. However, such kind of openings can also be omitted.

[0038] Preferably, the racks are received in each of the receiving modules.

[0039] Further advantages and developments of the invention occur in the following figure description and in all technical solutions. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 is a perspective side view of a preferred rack base.

[0041] Figure 2 is a schematic view of a preferred installation of two receiving modules of a rack base.

[0042] Figure 3 is a schematic view of a preferred receiving module of a rack base.

[0043] Figure 4 is a schematic view of a preferred protective cover plate of a rack base. DETAILED DESCRIPTION

[0044] Figure 1 is a perspective side view of a preferred rack base 10. The rack base 10 comprises four receiving modules 12 arranged one after the other along the rolling direction W. Each receiving module 12 is for receiving one rack 14. A narrower intermediate space 16 is located between adjacent receiving modules, which intermediate space is narrower in the rolling direction W than each of the receiving modules 12.

[0045] The receiving modules 12 are shaped in a way that they can reliably receive the racks 14, in Figure 1 four of them are shown. The racks 14 have a base surface which is oriented perpendicular to the rolling direction W and which is in the shape of a regular hexagon. The rack housing of the racks is decisive for the shape of the racks 14, and the rolls 14.1, the connecting pieces 14.2, the receptacles 14.3, etc. do not impede the feature of the racks 14 to be called hexagonal.

[0046] Due to the hexagonal shape of the racks 14, the receiving modules 12 are in the shape of a partial negative hexagon.Figure 1 The receiving modules 12 shown in Figure 2 The four side surfaces 18 shown in are arranged and dimensioned, in particular so that they have the same length and are arranged at an internal angle of 120° to each other, such that they reliably surround the rack 14 having the above-described hexagonal shape from the top and the bottom and on a first side 68 viewed in the rolling direction W. At the front and the rear viewed in the rolling direction W, the receiving modules 12 further comprise a protection wall 20 in order to firmly surround the rack 14.

[0047] On the side opposite the first side 68 viewed in the rolling direction W, which faces Figure 1 the viewer in, all receiving modules 12 comprise a lateral opening 66 through which a rack 14 standing on one of its side surfaces can be pushed into the receiving module 12 along the insertion direction E.

[0048] Below and behind along the insertion direction E, i.e. on the first side of each of the receiving modules 12, a slide rail 22 is further located on the receiving module 12 on which the rack 14 can be pushed into the receiving module 12 in a low-wear manner and in a defined position. The slide rail 22 can also serve as a seal against splashing water.

[0049] Between all adjacent receiving modules 12 a protection cover 24 is formed which covers the intermediate space 16 between the adjacent receiving modules 12. Thus, the intermediate space 16 is protected against rods escaping from the intermediate space 16 or escaping water and against a person reaching into the intermediate space 16.

[0050] The protection cover 24 is designed pivotable via a hinge 26 arranged in an upper region between the receiving modules 12. Thus, the intermediate space 16 can be covered by the protection cover 24 and also released by the protection cover, for example in order to perform work in the intermediate space 16 between the receiving modules 12 if currently no rolling is performed, but also in order to facilitate the exchange of a rack 14, in particular the pushing in or out of a rack 14. In order to allow a short-term access to the intermediate space 16, the protection cover 24 comprises a closable opening which in the embodiment shown in is covered by a handhole cover 30. Opening the handhole cover 30 is significantly faster and associated with less effort than opening the entire protection cover 24, in particular when all protection covers 24 of the rack base 10 are pivoted open and closed by a common drive. Figure 1

[0051] Figure 2 is a schematic view of a preferred installation of two receiving modules 12 of a rack base 10. Figure 2 ​The two receiving modules 12 shown are fastened to a common lower base frame 32 and a common upper cover frame 34. The receiving modules 12 are mounted in the base via the common lower base frame 32. The receiving modules 12 are mounted in the base at the bottom via the common lower base frame 32 in a torque-free manner by means of a connector 36 having an inclined axis K. In other words, the receiving modules 12 are mounted at the bottom in a manner that allows them to be mounted along the rolling direction W (in... Figure 2 In the middle, which corresponds to the main extension direction of the base frame 32) is inclined around the joint 36, such that the force acting on the receiving module 12 along the rolling direction W results in a torque about the inclined axis K of the joint 36.

[0052] The receiving module 12 is rested on the reverse bearing 38 at the top using the stop 40 of the receiving module 12. For example... Figure 2 As can be seen, the joint 36 is located off-center at the bottom of the receiving module 12 along the rolling direction W, causing the gravity acting on the receiving module 12 to cause a force to circumferentially around the joint 36. Figure 2 The tilting moment is on the left side (i.e., opposite to the rolling direction W). This tilting moment counteracts the reverse bearing 38 at the top, causing the receiving module 12 to rest securely on the reverse bearing 38 using the stop 40. The additional force on the frame 14 received in the receiving module 12 is superimposed on the force used by the receiving module 12 to rest on the reverse bearing 38 at the top, and thus changes the force acting on the reverse bearing 38. From this, conclusions can be drawn regarding the forces acting on the material to be rolled through the frame 14, conclusions that are valuable for regulating and controlling the rolling process.

[0053] For force measurement, a force measuring device 58 is arranged between the reverse bearing 38 and the stop 40 of the receiving module 12 placed on it. The force measuring device may be designed as, for example, a piezoelectric element.

[0054] exist Figure 2 In the diagram, one of the two receiving modules 12 is mounted on a rack 14, while the rest of the two receiving modules 12 are empty. (This is in addition to the information already referenced above.) Figure 1 In addition to the described components, the empty receiving module 12 also illustrates a retainer 42 for an electrically or hydraulically remotely adjusted member attached to the roll guide of the frame 14. This type of roll guide is optional and can be further adjusted remotely (i.e., by a motor) or manually, or may be designed so that no adjustment is performed, but rather a continuous force is applied to the roll, for example, by a spring along the direction of the material to be rolled.

[0055] In addition, Figure 2The hook 44 is visible in the empty receiving module 12, by means of which the housing 14 can be pulled into or pushed out of the receiving module 12. The hook 44 is operatively connected to a longitudinal drive 46 via which the force required to push in and push out the housing 14 can be provided.

[0056] Figure 2 The empty receiving module 12 exhibits openings 48 in its side surface 18. A plurality of such kinds of openings 48 are provided for the drive shafts of the rollers of the housing 14. Via the openings 48, the coupling of the roller shafts can be passed through the receiving module 12 from one side of the housing 14 to the outside, where the roller shafts can be coupled to the corresponding drives.

[0057] Furthermore, two first operating substance connections designed as water connections 50 are exhibited in the receiving module 12. One or more corresponding connections on the housing 14 can be coupled to the water connections 50 as the housing 14 is pushed into the receiving module 12. For this purpose, the housing 14 can be provided with corresponding connectors which penetrate into the water connections 50 of the receiving module and thus establish a watertight connection.

[0058] Second operating substance connections designed as air connections 52 are also exhibited. The air connections 52 are also positioned and designed in a similar manner to the water connections 50, such that the air connections 52 can be coupled to corresponding connections on the housing 14 as the housing 14 is pushed into the receiving module 12.

[0059] Figure 3 is a schematic view of a preferred receiving module 12 of the housing base 10. In this figure, remote adjustment members 54 for attaching to the rollers of the roller guide of the housing are indicated, which are held in holders 42 for remote adjustment members. Furthermore, Figure 3 Electric or hydraulic remote adjustment members 56 of the rollers of the housing attached to the receiving module 12 are also exhibited, which are attached obliquely at the top to the receiving module 12 and allow simple coupling to corresponding remote adjustment connectors of the housing. Figure 3 The hook 44, which is also illustrated in Figure 2 , and the longitudinal drive 46 operatively connected to the hook 44 are exhibited.

[0060] The empty receiving module from Figure 2 is compared with the receiving module from Figure 3 . It is exhibited that the water connections 50, the air connections 52 and the openings 48 for the roller drives are provided in different positions. The receiving module 12 is constructed for two different arrangements, in particular one for a so-called Y-arrangement of the rollers and one for a so-called reverse Y-arrangement of the rollers.

[0061] The modular design of the rack base 10 makes it possible to switch between the different arrangements in a very flexible manner, since in each case a suitable receiving module 12 is easily positioned in the rack base 10, which receiving module can all be installed in the same way, can be supplied with the same operating substance and allows the same mechanism for pushing the racks 14 in and out and for the same force measurement.

[0062] Figure 4 is a schematic view of a preferred protective cover 24 of the rack base 10. Figure 4 The protective cover 24 is shown in the closed position. The protective cover 24 comprises the manhole cover 30 already explained above with reference to Figure 1 The protective cover 24 comprises two windows 60 in order to be able to observe the intermediate space 16 between adjacent receiving modules 12. Furthermore, the protective cover 24 is pivotably mounted at the top in a hinge 26, so that it can be pivoted open and closed. For this purpose, Figure 4 A protective cover drive 62 is shown, in which a hydraulic cylinder exerts a force to open and close the protective cover 24. Figure 4 A protective plate 64 is shown on the side opposite the lateral opening of the receiving module 12, as well as the upper and lower edges of the intermediate space 16, which serve, inter alia, to drain splashing water in the intermediate space 16 in as controlled a manner as possible and to reduce contamination of the rack base 10.

[0063] List of reference numbers

[0064] 10 rack base

[0065] 12 receiving module

[0066] 14 rack

[0067] 14.1 roll

[0068] 14.2 connecting piece

[0069] 14.3 receptacle

[0070] 16 intermediate space

[0071] 18 side surface

[0072] 20 protective wall

[0073] 22 sliding rail

[0074] 24 protective cover

[0075] 26 hinge

[0076] 28 opening

[0077] 30 manhole cover

[0078] 32 base frame

[0079] 34 cover frame

[0080] 36 joint

[0081] 38 counter bearing

[0082] 40 stop

[0083] 42 holder

[0084] 44 hook

[0085] 46 longitudinal drive

[0086] 48 opening

[0087] 50 water connection

[0088] 52 air connection

[0089] 54 remote adjustment member of the roll guide

[0090] 56 remote adjustment member of the roll

[0091] 58 force measuring device

[0092] 60 window

[0093] 62 protective cover plate drive

[0094] 64 protective plate

[0095] 66 transverse opening

[0096] 68 first side

[0097] E insertion direction

[0098] K tilt axis

[0099] W rolling direction

Claims

1. A stand base (10) for two or more stands (14) of a rolling mill, said two or more stands being arranged one after another in the rolling direction (W) of the material to be rolled, wherein said stands (14) in each case include more than four side surfaces, which together form the periphery of said stands (14) when viewed from said rolling direction (W). The rack base (10) includes two or more receiving modules (12) individually mounted in the base, each of the receiving modules being designed to receive one of the racks (14) through a lateral opening (66) such that the receiving module covers four of the side surfaces of the rack (14) and more than half of the periphery. The rack base (10) includes a protective cover (24) on the side of the transverse opening (66) between all the receiving modules (12) arranged adjacent to each other, so as to protect the intermediate space (16) between the adjacent receiving modules (12) from the influence of rods or water escaping from the intermediate space (16) and prevent personnel from reaching into the intermediate space (16).

2. The rack base (10) according to claim 1, wherein the receiving module (12) is mounted in the base by means of a common lower base frame (32).

3. The rack base (10) according to claim 1 or claim 2, wherein each of the receiving modules (12) includes an operating material connector (50, 52) pointing toward the lateral opening (66) to enable the supply of the operating material to the rack (14).

4. The rack base (10) according to claim 1 or 2, wherein each of the receiving modules (12) includes a retainer for an electrically or hydraulically remotely adjustable member (56) for the rack (14).

5. The frame base (10) according to claim 1 or 2, wherein each of the receiving modules (12) includes a retainer (42) for an electrically or hydraulically remotely adjusting member (54) for attachment to the roll guide of the frame (14).

6. The rack base (10) according to claim 1 or 2, wherein each of the receiving modules (12) is provided with a clamping mechanism for temporarily fixing the rack (14) in the receiving module (12).

7. The frame base (10) according to claim 1 or 2, wherein each of the receiving modules (12) is mounted in the base at the bottom in a torque-free manner, specifically mounted on the base frame (32), such that the receiving module can be tilted along the rolling direction (W). Each of the receiving modules (12) rests on its own reverse bearing (38) at the top.

8. The frame base (10) according to claim 7, wherein the force measuring device (58) is arranged in a manner between the receiving module (12) and the reverse bearing (38) such that the force acting on the frame (14) received in the receiving module (12) along the rolling direction (W) can be measured.

9. The frame base (10) according to claim 8, wherein the limiting element is arranged between the receiving module (12) and the reverse bearing (38) to protect the force measuring device (58) from overload.

10. The rack base (10) according to claim 7, wherein the reverse bearing (38) of the receiving module (12) is fastened to the common cover frame (34).

11. The rack base (10) according to claim 1 or 2, wherein each receiving module (12) includes a longitudinal driver (46) having a clamping device (44) such that the rack (14) can be pushed into and pushed out of the receiving module (12) through the transverse opening (66).

12. The rack base (10) according to claim 1 or 2, wherein two different receiving modules (12) for receiving the rack (14) in two different arrangements are alternately arranged front and back.

13. The rack base (10) according to claim 1 or 2, wherein the protective cover (24) is designed to be hydraulically or electrically pivotable.

14. The rack base (10) according to claim 1 or 2, wherein the protective cover (24) includes a closable opening (28) to allow brief access to the intermediate space (16).

15. The rack base (10) according to claim 1 or 2, wherein the rack (14) is received in each of the receiving modules (12).

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