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 utility model relates to a frame base for two or more frames of a rolling mill. The two or more frames are arranged one after another in the rolling direction of a material to be rolled. Background Art

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

[0003] Conventionally, rolling mills have traditionally been designed for a predetermined number of stands arranged one behind the other. Four stands per mill are typical, with the stands always designed in pairs so that the rolls of a stand contact the material to be rolled at points not previously contacted in the previous stand. In this context, in the case of three-roller stands, reference is made to a Y-shaped and an inverted Y-shaped arrangement, which always alternate with one another.

[0004] A rolling mill can accommodate all rolling stands together. DE 10 2016 217 202 B4 discloses a rolling mill for rolling rod-shaped or tubular products, comprising two or more rolling stands arranged one behind the other in the rolling direction of the material to be rolled. The rolling mill includes at least one measuring device, which is arranged in the rolling direction before, between, or after the stands, in order to control or regulate the rolling speed in at least one of the stands based on this measuring device.

[0005] A disadvantage of the rolling mills known from the prior art is that they can only accommodate all stands together in their entirety and therefore cannot be flexibly adjusted to different requirements.

[0006] A 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 the roughing or intermediate rolling mill) is the influence of the common stand clamping on the measurement signals, which distorts them. Utility Model Content

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

[0008] A stand base for two or more stands of a rolling mill, the two or more stands being arranged one after another in a rolling direction of a material to be rolled, the stands each comprising more than four side surfaces that together form a periphery of the stand when viewed 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 transverse opening in such a manner that the receiving module covers the four side surfaces and more than half of the periphery of the stand. The stand base comprises protective covers on the sides of the transverse openings between all the receiving modules arranged adjacently one after another, so as to protect the intermediate space between the adjacent receiving modules from rods or water escaping from the intermediate space and to prevent persons from reaching into the intermediate space.

[0009] The stand base is thus designed in a modular manner, as it comprises a plurality of receiving modules, each of which can receive a single stand. In this case, the receiving modules of the stand base are distinguished from the individual stand bases outside the rolling mill complex. In accordance with the present invention, the receiving modules are part of the stand base of the rolling mill.

[0010] The receiving module makes it possible to receive individual stands in individual receiving modules and thus use the rolling mill in a flexible manner. Furthermore, the rolling mill can be produced and designed in a more cost-effective manner because the receiving module makes a modular design possible.

[0011] The fact that the opening is transverse to the rolling direction is relevant. The receiving modules are positioned one after the other, viewed in the rolling direction, and can each receive a rack transversely to the rolling direction. In this case, for example, when a rack is being replaced for maintenance or by a rack with a different calibration size, all the racks can be received from the same side of the receiving module.

[0012] To allow the rack to be inserted sideways into the receiving module, the receiving module at least sometimes includes an opening on one side. This side also allows access to the rack base, allowing for rack replacement. This also means that personnel can get as close to the rack as possible from this side of the rack base.

[0013] The receiving modules are designed to accommodate racks with more than four side surfaces. Preferably, each of the racks includes six side surfaces, and the outer shape of these six side surfaces, viewed in the rolling direction, forms a regular hexagon. Alternatively, the receiving modules can also be designed to accommodate racks with four side surfaces. To securely accommodate the racks, the receiving modules have a shape that matches the shape of the racks. This means that the shape of the receiving modules is primarily the negative of the outer shape of the portion of the rack that the receiving modules accommodate. The fact that each of the receiving modules is designed to cover four of the preferred six side surfaces of the rack specifically means that the receiving modules include surfaces that are partially adjacent to or surrounded by some of the rack's side surfaces, so that the rack is securely and firmly mounted in the receiving module. Further structural measures, in particular clamping blocks, straps, or anchors, can also be employed for this purpose. For racks with four side surfaces, the receiving modules can be designed to cover three of the side surfaces of the rack.

[0014] In modular designs of stand bases with multiple receiving modules, it is essential to ensure that the intermediate spaces between the receiving modules are fixed. This is because during operation of a rolling mill, large amounts of rolled material (usually steel) are guided through the mill at high speeds and temperatures. Consequently, during rolling, so-called jams can occur, in which the rolled material is not properly received by the stands and accumulates in front of them. If the rolling mill is not fixed, the rolled material can escape rapidly and uncontrollably from the mill, which is unacceptable, for example, from occupational safety perspectives. Furthermore, large amounts of cooling water escape from between the stands of the rolling mill into the surrounding environment, which also needs to be shielded.

[0015] For this purpose, a protective cover or a plurality of protective covers are used, which are arranged on the sides of the transverse openings of at least two receiving modules and cover the intermediate space.

[0016] The stand base is preferably mounted in the base by means of a common lower base frame. The base frame absorbs forces acting in the rolling direction on the stand received in the receiving module during operation and thus prevents these forces from being directly introduced into the base. This ensures greater stability of the stand base and, consequently, greater precision in the relative position of the stands relative to one another in the receiving module. In this case, the base frame preferably extends over the entire extent of the rolling mill in the rolling direction, but can also cover only a smaller length, and the rolling mill can therefore include several such base frames. However, it is also possible to mount the receiving module directly in the base without a base frame.

[0017] Preferably, each receiving module includes an operating substance connection pointing toward the transverse opening to enable the supply of operating substances to the rolling mill. By way of example, the operating substance is water, in particular cooling water for the rolls, optionally the roll guides, or the material to be rolled, and in particular compressed air for sealing the rolling mill. Each receiving module may also preferably include multiple operating substance connections. If each receiving module includes one or more operating substance connections, rolling mills can be particularly easily inserted into the rolling mill in a modular manner, where the operating substance supply is necessary or beneficial for the operation of the rolling mill. In this way, for example, a unified connection for each receiving module can be designed so that all rolling mills fit into all receiving modules and can be connected to the operating substance connection there. The operating substance connection is advantageously aligned with the transverse opening, meaning that it points in the direction of the transverse opening and is easily accessible from that direction. In this case, the operating substance connection is preferably designed so that a correspondingly designed rolling mill can be directly connected to one or more of the operating substance connections by being pushed into the receiving module. This can be made possible, for example, by means of connection sockets pointing towards the lateral opening, into which corresponding connectors on the rack can be pushed when the rack is pushed into the receiving module. However, an operating substance connection of this kind is not necessary.

[0018] Advantageously, each of the receiving modules includes a holder for an electric or hydraulic remote adjustment member of the machine frame. The machine frame received in the receiving module may include adjustable rollers. Adjustable rollers, and in particular, mechanisms for adjusting the rollers, are already known in principle. Automatic activation of the rollers by means of remote adjustment members is also known. An alternative adjustment method is manual adjustment of the rollers using a hand-actuated tool. For the remote adjustment member, an electrically, hydraulically, or otherwise driven shaft is provided, which applies the adjustment torque to the corresponding adjustment mechanism of the machine frame via a coupler.

[0019] According to the preferred features described above, each receiving module is provided with a holder for a remote adjustment member of the rolls of the stand. Specifically, the holder can be, for example, a bearing for an adjustment shaft or a coupler, so that the adjustment shaft or the coupler is held in the correct position for interaction with the stand pushed into the receiving module. For this purpose, the stand can include a coupler that can be coupled to a coupler of the remote adjustment member of the stand. In a preferred embodiment, the holder for the remote adjustment member of the stand makes it possible to have the remote adjustment member ready or not, 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 remote adjustment members. However, the holder can also be omitted.

[0020] Advantageously, each of the receiving modules includes a holder for an electric or hydraulic remote adjustment member attached to the roll guide of the mill stand. Similar to the adjustable rolls of the mill stand, the rolls attached to the roll guide of the mill stand are also adjustable. Adjustable rolls similar to adjustable rolls are already known in principle. Automatic activation of the rolls by means of remote adjustment members is also known. An alternative to adjusting the rolls is manual adjustment of the rolls using a hand-actuated tool or a roll holder preloaded by spring force, so that the rolls cannot be adjusted externally. For the remote adjustment member of the roll guide, an electrically, hydraulically, or otherwise driven shaft is provided, which applies the adjustment torque to the corresponding adjustment mechanism of the roll guide via a coupling.

[0021] According to the preferred features described above, each receiving module is provided with a holder for a remote adjustment member for the roll guide. Specifically, the holder can be, for example, a bearing for an adjustment shaft or a coupler, which holds the adjustment shaft or coupler in the correct position for interaction with the roll guide of the machine stand inserted into the receiving module. For this purpose, the roll guide can include a coupler that can be coupled to the coupler of the remote adjustment member. In a preferred embodiment, the holder for the remote adjustment member for the roll guide allows the remote adjustment member to be ready or not, depending on the design of the machine stand housing. In this sense, the presence of the holder is independent of the design of the machine stand and its roll guides, allowing for a particularly versatile use of the machine stand base. However, this type of holder can also be omitted.

[0022] Each frame is preferably securely received in its receiving module by means of a clamp or in another manner, so that forces acting on the frame, in particular on the material to be rolled, are transmitted to the receiving module. The frame is removably received in the receiving module, so that the receptacle, in particular the clamping device, can be released and thus the frame is free for frame replacement. Secure reception secures the frame in its receiving module.

[0023] Thus, the forces acting on the stand can be released and measured independently of the forces acting on the other stands, making it possible to improve the control or regulation of the rolling process.

[0024] Preferably, each of the receiving modules is mounted at the bottom of the base frame in such a way that it can be tilted in the rolling direction, each of the receiving modules resting on its own counter-bearing. Particularly preferably, if each of the receiving modules is mounted in the base frame by means of a base frame, the receiving module is mounted on the base frame in a torque-free manner in such a way that it can be tilted in the rolling direction.

[0025] If, for example, the receiving module is articulated, it 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, etc., which allows tilting in the rolling direction. For a torque-free mounting, it is important 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., no significant force needs to be applied to tilt the receiving module in the rolling direction.

[0026] The fact that the receiving module can be tilted in the rolling direction means that it can be tilted about an axis that extends perpendicular to the rolling direction and preferably extends horizontally. Due to the torque-free mounting, the axis about which the receiving module can be tilted is preferably arranged so as to be offset relative to the receiving module. Furthermore, 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 at the bottom in a torque-free manner, the counter-bearing at the top creates a stable arrangement. In the event of an off-center arrangement of the receiving module about its downwardly tilting axis in a torque-free manner, the receiving module rests on the counter-bearing at the top due to the tilting moment of the receiving module caused by gravity.

[0027] Preferably, each of the receiving modules is provided with a clamping mechanism for temporarily fixing the rack in the receiving module.

[0028] The torque-free mounting of the receiving module allows it to be tilted independently of the other receiving modules of the stand base. The forces acting on the stand in the rolling direction can be determined via the counter-bearing without changing the position of the receiving module during 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, specifically in the base frame, or be displaceable. Alternatively, the receiving module can be mounted in a torque-free manner at the top, allowing it to be tilted in the rolling direction and resting 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 stand received in the receiving module along the rolling direction can be measured. For example, the device listed in DE 10 2016 217 202 B4 may be used as a force-measuring device, specifically a piezoelectric measuring device, because piezoelectric elements have high measurement sensitivity and high rigidity even under significant loads. Other force-measuring devices are also possible. Using a force-measuring device, it is possible to determine the force acting on individual stands along the rolling direction. Due to the torque-free lower mounting of the receiving module, the force applied to the stand acts as a torque about the axis of the torque-free mounting along the rolling direction and, therefore, as a force on the counter-bearing. Since each receiving module is mounted independently of the other receiving modules of the stand base in a torque-free manner, the force acting on each individual stand along the rolling direction can be determined in this way. This force can be used to control or regulate the rolling process to achieve better rolling results. However, the force-measuring device can also be omitted.

[0030] Particularly preferably, a limiting element is arranged between the receiving module and the counter bearing to protect the force-measuring device from overloading. For example, this could be a stop that limits the spring travel of a spring-based force-measuring device and thus prevents excessive deformation of the force-measuring device. However, this type of limiting element is not mandatory.

[0031] Advantageously, the counter-bearings of the receiving module are fastened to a common cover frame. Similar to the common base frame, the cover frame absorbs the forces acting in the rolling direction on the stands received in the receiving module during operation and thus prevents these forces from being directly introduced into the cover structure. This ensures greater stability of the stand base and, consequently, greater precision in the relative position of the stands relative to one another in the receiving module. In this case, the cover frame preferably extends over the entire extent of the rolling mill in the rolling direction, but it can also cover only a smaller length, and the rolling mill can therefore include several such cover frames. However, it is also possible to fasten the counter-bearings directly into the cover structure.

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

[0033] For example, the longitudinal actuator can be a hydraulic cylinder or an electric actuator strong enough to pull the rack into and out of the receiving module. This movement through the transverse opening allows the rack to be replaced for maintenance or other reasons. Alternatively, a correspondingly designed external device can be used to introduce the rack into the receiving module or remove it from the receiving module.

[0034] Hooks, shackles, slides, or other devices can be used as the holder device. The specific design of the holder device can be matched to the rack configured to receive the module. It is also conceivable to operatively connect adapters for different holder devices to the longitudinal drive to enable use with different racks. However, rack mounts are typically designed for a predetermined type and shape of rack, so that such adapters are generally not required.

[0035] Advantageously, two different receiving modules for receiving stands in two different configurations are arranged alternately one behind the other. In the case of a three-roller stand, the different configurations can include a Y-shaped configuration and an inverted Y-shaped configuration. Stands with more or fewer rolls can be arranged in corresponding configurations that complement each other to form a round roll. If the material to be rolled is not intended to be round, the different configurations can also be arranged alternately if this is beneficial to the rolling result. However, this is not necessarily the case.

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

[0037] Advantageously, the protective cover includes a closable opening to allow temporary access to the intermediate space. For example, temporary access to the intermediate space can be achieved by manually operating the roller guide. Thus, the protective cover does not have to be completely removed (for example, pivoted open) to allow temporary access to the intermediate space, which allows for more efficient operation of the rolling mill. However, this type of opening can also be omitted.

[0038] Preferably, a rack is received in each of the receiving modules.

[0039] Other advantages and developments of the present invention appear in the following description of the drawings and all technical solutions. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

[0043] Figure 4 is a schematic diagram of a preferred protective cover for the rack base. DETAILED DESCRIPTION

[0044] Figure 11 is a perspective side view of a preferred stand base 10. The stand base 10 comprises four receiving modules 12 arranged one behind the other along the rolling direction W. Each receiving module 12 is for receiving one stand 14. Narrow intermediate spaces 16 are located between adjacent receiving modules, said intermediate spaces being narrower in the rolling direction W than each of the receiving modules 12.

[0045] The receiving module 12 is shaped in such a way that it can securely receive the rack 14. Figure 1 Four of the stands are shown in FIG. The stand 14 has a base surface oriented perpendicular to the rolling direction W and in the shape of a regular hexagon. The shape of the stand 14 is determined by its housing, and the rolls 14.1, the connecting elements 14.2, the receptacles 14.3, etc. do not interfere with the hexagonal character of the stand 14.

[0046] Due to the hexagonal shape of the housing 14 , the receiving module 12 has the shape of a partial negative hexagon. Figure 1 The receiving module 12 shown in FIG. 1 includes Figure 2 , which 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) so that they reliably surround the stand 14 having the above-described hexagonal shape from the top and bottom and on a first side 68 as viewed in the rolling direction W. At the front and rear as viewed in the rolling direction W, the receiving module 12 further includes protective walls 20 in order to securely surround the stand 14.

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

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

[0049] A protective cover 24 is formed between all adjacent receiving modules 12, which covers the intermediate space 16 between adjacent receiving modules 12. Thus, the intermediate space 16 is protected from rods or water escaping from the intermediate space 16 and prevents people from reaching into the intermediate space 16.

[0050] The protective cover 24 is designed to be pivotable via a hinge 26 arranged in the upper region between the receiving modules 12. Thus, the intermediate space 16 can be covered by the protective cover 24 and can also be released by it, for example in order to carry out work in the intermediate space 16 between the receiving modules 12 when no rolling is currently being carried out, and in order to facilitate the replacement of the racks 14, in particular the pushing in or pushing out of the racks 14. In order to allow temporary access to the intermediate space 16, the protective cover 24 comprises a closable opening which is opened at Figure 1 In the embodiment shown in FIG, the hand hole cover 30 is covered. Opening the hand hole cover 30 is significantly faster and associated with less effort than opening the entire protective cover 24, in particular when all protective covers 24 of the rack base 10 are pivoted open and closed by a common drive.

[0051] Figure 2 FIG. 1 is a schematic diagram of a preferred installation of two receiving modules 12 on a rack base 10 . Figure 2 The two receiving modules 12 shown in FIG 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 in a torque-free manner via the common lower base frame 32 by means of joints 36 with an inclined axis K. In other words, the receiving modules 12 are mounted at the bottom in such a way that they can be rotated in the rolling direction W (in the rolling direction W). Figure 2 , which corresponds to the main extension direction of the base frame 32 ) is tilted about the joint 36 so that forces acting on the receiving module 12 along the rolling direction W result in a torque about the tilt axis K of the joint 36 .

[0052] The receiving module 12 rests at the top on the counter bearing 38 with the stop 40 of the receiving module 12. Figure 2 As can be seen in FIG, the joint 36 is located off-center at the bottom on the receiving module 12 along the rolling direction W, so that the gravity acting on the receiving module 12 causes the joint 36 to move toward the receiving module 12. Figure 2 , i.e., opposite to the rolling direction W. This tilting moment counteracts the counter bearing 38 at the top, so that the receiving module 12 rests firmly on the counter bearing 38 with the stop 40. The additional force on the stand 14 received in the receiving module 12 is superimposed on the force with which the receiving module 12 rests on the counter bearing 38 at the top, and thus changes the force acting on the counter bearing 38. This allows conclusions to be drawn about the forces acting on the material to be rolled by the stand 14, which are valuable for regulating and controlling the rolling process.

[0053] For force measurement, a force measuring device 58 is arranged between the counter bearing 38 of the receiving module 12 placed above and the stop 40 , which can be designed as a piezoelectric element, for example.

[0054] exist Figure 2 In the embodiment, one of the two receiving modules 12 is provided with a rack 14, while the other two receiving modules 12 are shown empty. Figure 1 In addition to the elements described, the empty receiving module 12 also illustrates a holder 42 for an electric or hydraulic remote adjustment member of the roll guide attached to the stand 14. Roll guides of this type are optional and can further be adjusted by remote adjustment members (i.e., by a motor) or manually, or can be designed so that no adjustment is performed, but rather a force is continuously exerted on the rolls in the direction of the material to be rolled, for example by a spring.

[0055] In addition, Figure 2 In the empty receiving module 12 in the housing 10 a hook 44 is visible, 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 the housing 14 in and out can be provided.

[0056] Figure 2 The receiving module 12, shown empty, comprises openings 48 in its side surface 18. A plurality of such openings 48 are provided for the drive shafts of the rolls of the stand 14. Via these openings 48, the roll shafts can be coupled from one side of the stand 14 through the receiving module 12 to the outside, where they can be coupled to corresponding drives.

[0057] Furthermore, two first operating substance connections, designed as water connections 50, are shown in the receiving module 12. One or more corresponding connections on the rack 14 can be coupled to these water connections 50, as the rack 14 is pushed into the receiving module 12. For this purpose, the rack 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] Also shown is a second operating substance connection designed as air connection 52. Air connection 52 is also positioned and designed in a similar manner to water connection 50 so that it can be coupled to a corresponding connection on rack 14 as rack 14 is pushed into receiving module 12.

[0059] Figure 3is a schematic diagram of a preferred receiving module 12 of the stand base 10. In this figure, remote adjustment members 54 for rollers attached to the roll guides of the stand are indicated, said remote adjustment members being held in holders 42 for remote adjustment members. In addition, Figure 3 Also shown are electric or hydraulic remote adjustment means 56 of the rolls attached to the stand of the receiving module 12 , which are attached obliquely to the receiving module 12 at the top and allow simple coupling to corresponding remote adjustment connectors of the stand. Figure 3 The display is also Figure 2 4 and a longitudinal drive 46 operatively connected to the hook 44 .

[0060] From Figure 2 The empty receiving module from Figure 3 The comparison of the receiving modules of FIG. 1 and FIG. 2 shows that the water connection 50, the air connection 52 and the opening 48 for the roller drive are arranged in different positions. The receiving module 12 is configured for two different arrangements, specifically a so-called Y-arrangement for the rollers and a so-called inverse Y-arrangement for 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, said receiving modules being all mounted in the same way, being supplied with the same operating substances and allowing the same mechanism for pushing the rack 14 in and out and for the same force measurement.

[0062] Figure 4 FIG. 2 is a schematic diagram 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 includes the Figure 1 The hand hole cover 30 and the two windows 60 are explained so that the intermediate space 16 between adjacent receiving modules 12 can be observed. In addition, the protective cover 24 is pivotably mounted in a hinge 26 at the top so that it can be pivoted open and closed. For this purpose, Figure 4 A protective cover actuator 62 is shown, wherein a hydraulic cylinder applies force to open and close the protective cover 24 . Figure 4 Shown are a protective plate 64 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 serves in particular to drain splashing water in said intermediate space 16 in the most controlled manner possible and to reduce contamination of the rack base 10 .

[0063] Reference Number List

[0064] 10 rack base

[0065] 12. Receiver Module

[0066] 14 racks

[0067] 14.1 Rollers

[0068] 14.2 Connectors

[0069] 14.3 Seat

[0070] 16 In-between Space

[0071] 18 side surface

[0072] 20 Protective wall

[0073] 22 Sliding Track

[0074] 24 Protective cover

[0075] 26 hinges

[0076] 28 Opening

[0077] 30 Handhole Cover

[0078] 32 base frame

[0079] 34 Cover frame

[0080] 36 connectors

[0081] 38 Counter bearing

[0082] 40 Stopper

[0083] 42 retainer

[0084] 44 Hook

[0085] 46 Longitudinal drive

[0086] 48 Opening

[0087] 50 Water connection

[0088] 52 Air connector

[0089] 54 Remote adjustment member for roller guide

[0090] 56 Remote adjustment member for rollers

[0091] 58 Force measuring device

[0092] 60 windows

[0093] 62 Protective cover drive

[0094] 64 protection board

[0095] 66 Horizontal 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 behind the other in the rolling direction (W) of the material to be rolled, characterized in that The stand (14) comprises in each case more than four side surfaces which together form the periphery of the stand (14) viewed in the rolling direction (W), wherein 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 transverse opening (66) in such a manner that the receiving module covers four of the side surfaces and more than half of the periphery of the rack (14), The rack base (10) comprises a protective cover (24) on the side of the transverse opening (66) between all the receiving modules (12) arranged adjacently one after another, so as to protect the intermediate space (16) between the adjacent receiving modules (12) from rods or water escaping from the intermediate space (16) and to prevent people from reaching into the intermediate space (16).

2. The rack base (10) according to claim 1, characterized in that 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, characterized in that Each of the receiving modules (12) comprises an operating substance connection (50, 52) directed towards the transverse opening (66) so as to be able to supply the operating substance to the rack (14).

4. The rack base (10) according to claim 1 or 2, characterized in that Each of the receiving modules (12) includes a holder for an electric or hydraulic remote adjustment member (56) of the frame (14).

5. The rack base (10) according to claim 1 or 2, characterized in that Each of the receiving modules (12) includes a holder (42) for an electric or hydraulic remote adjustment member (54) attached to a roll guide of the stand (14).

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

7. The rack base (10) according to claim 2, characterized in that Each of the receiving modules (12) is mounted at the bottom in the base in a torque-free manner so that the receiving module can be tilted along the rolling direction (W), Each of the receiving modules (12) rests at the top on its own counter bearing (38).

8. The rack base (10) according to claim 7, characterized in that Each of the receiving modules (12) is mounted on the base frame (32) at the bottom in a torque-free manner.

9. The rack base (10) according to claim 7 or 8, characterized in that A force measuring device (58) is arranged between the receiving module (12) and the counter bearing (38) in such a way that a force acting along the rolling direction (W) on the stand (14) received in the receiving module (12) can be measured.

10. The rack base (10) according to claim 9, characterized in that A limiting element is arranged between the receiving module (12) and the counter bearing (38) in order to protect the force measuring device (58) from overload.

11. The rack base (10) according to claim 7 or 8, characterized in that The counter bearing (38) of the receiving module (12) is fastened to a common cover frame (34).

12. The rack base (10) according to claim 1 or 2, characterized in that Each receiving module (12) comprises a longitudinal drive (46) with a gripper device (44), so that the rack (14) can be pushed into the receiving module (12) and pushed out of the receiving module (12) through the transverse opening (66).

13. The rack base (10) according to claim 1 or 2, characterized in that Two different receiving modules (12) for receiving the rack (14) in two different arrangements are arranged alternately one behind the other.

14. The rack base (10) according to claim 1 or 2, characterized in that The protective cover (24) is designed to be pivotable hydraulically or electrically.

15. The rack base (10) according to claim 1 or 2, characterized in that The protective cover (24) includes a closable opening (28) to allow temporary access to the intermediate space (16).

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

Images