A universal rolling mill with a structure for preventing the guide beam tie rod from tilting during roll changing

Abstract

The present invention provides a universal rolling mill with a structure for preventing the guide beam tie rod from tilting during the roll changing process, comprising an operating side bracket and a transmission side bracket arranged on both sides of the roll, and also comprising a guide beam, wherein the guide beam is used to fix a guide device, and the guide device is used to correct the position of the rolled piece; the two ends of the guide beam are respectively mounted on the operating side bracket and the transmission side bracket; the operating side bracket and the transmission side bracket are respectively provided with a first through hole and a second through hole, and the two ends of the guide beam pass through the first through hole and the second through hole; and also comprising a support assembly, wherein the opening portion of the first through hole close to one end of the second through hole is provided with a countersunk hole for accommodating the support assembly, and the support assembly is embedded in the countersunk hole. Beneficial effects of the present invention: A universal rolling mill with a structure for preventing the guide beam tie rod from tilting during the roll changing process adds a copper sleeve to the operating side left bracket and the right bracket at the guide beam installation position to support and position the guide beam, so as to prevent the guide beam from tilting.

Description

Technical Field

[0001] The invention belongs to the field of rolling mills, and in particular relates to a universal rolling mill with a structure for preventing a guide beam tie rod from tilting during a roll changing process. Background Art

[0002] Universal rolling mill is an important equipment on the steel rolling production line, and changing the rolls of the rolling mill is a common operation. The existing universal rolling mill's guide beam tie rod is locked with the transmission side and operating side brackets by the washer nut. When changing the rolls, the nut is removed, and the transmission side and operating side brackets are separated by the roll changing manipulator, so that the guide beam tie rod is pulled out, and then the rolls are replaced. However, since the installation requires that the guide beam tie rod and the upper holes of the operating side and transmission side brackets are assembled with a large gap, the guide beam tie rod and the operating side bracket are installed first after the roll is changed. At this time, the guide beam tie rod will warp, which makes it very inconvenient to install the transmission side bracket. In addition, each universal rolling mill has four identical tie rods for roll changing, which makes the installation and debugging of the roll system extremely cumbersome, inefficient, time-consuming and labor-intensive. Therefore, it is very necessary to improve the structure of the universal rolling mill roll change to prevent the guide beam tie rod from warping. Summary of the invention

[0003] In view of this, the present invention aims to propose a universal rolling mill with a structure for preventing the guide guard beam pull rod from tilting during the roll changing process. A support assembly is added to the left and right brackets on the operating side at the guide guard beam installation position. The support assembly includes a copper sleeve for supporting and positioning the guide guard beam to prevent the guide guard beam from tilting.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A universal rolling mill with a structure for preventing a guide beam tie rod from tilting during a roll change process, comprising an operating side bracket and a transmission side bracket arranged on both sides of the roll, and a guide beam, wherein the guide beam is used to fix a guide device, and the guide device is used to correct the position of a rolled piece;

[0006] The two ends of the guide beam are respectively mounted on the operating side bracket and the transmission side bracket;

[0007] The operating side bracket and the transmission side bracket are respectively provided with a first conducting hole and a second conducting hole, and both ends of the guide beam pass through the first conducting hole and the second conducting hole;

[0008] It also includes a support assembly, wherein a countersunk hole for accommodating the support assembly is provided at an opening portion of the first conductive hole close to one end of the second conductive hole, and the support assembly is embedded in the countersunk hole;

[0009] A third conducting hole is arranged in the supporting component, and the third conducting hole is communicated with the inside of the first conducting hole.

[0010] Furthermore, the inner diameter of the third conductive hole is smaller than the inner diameter of the first conductive hole, and the inner diameters of the first conductive hole, the second conductive hole, and the third conductive hole are larger than the outer diameter of the guide beam.

[0011] Further, the operating side bracket includes an operating side left bracket and an operating side right bracket respectively arranged on the left half and the right half, and the transmission side bracket includes a transmission side left bracket and a transmission side right bracket respectively arranged on the left half and the right half;

[0012] The left operating side bracket and the right operating side bracket are respectively provided with two first conducting holes arranged up and down;

[0013] Two second conducting holes arranged up and down are respectively arranged on the transmission side left bracket and the transmission side right bracket.

[0014] Furthermore, the operating side bracket is provided with four first conducting holes, and the transmission side bracket is provided with four second conducting holes;

[0015] The four first conductive holes and the four second conductive holes form four pairs of conductive holes, and four guide beams are installed between the four pairs of conductive holes;

[0016] The guide device comprises an upper half and a lower half, each of which is provided with a fourth conducting hole and is fixed on the guard beam through a fourth mounting hole.

[0017] Furthermore, guide devices are provided on both the inlet side and the outlet side of the rolling mill.

[0018] Further, the support assembly includes a boss portion and a flange portion, and the outer diameter of the flange portion is greater than the outer diameter of the boss portion;

[0019] The countersunk hole on the operating side bracket corresponds to the shape of the support assembly;

[0020] The flange portion and the operating side bracket are also fastened together by a first screw.

[0021] Furthermore, a limiting portion is provided at one end of the guide beam, and a threaded portion is provided at the other end. The outer diameter of the limiting portion is larger than the inner diameter of the first conductive hole and the second conductive hole. The threaded portion is provided with an external thread, and the threaded portion is provided with a corresponding nut. The guide beam is fixed to the operating side bracket and the transmission side bracket through the limiting portion and the nut.

[0022] Furthermore, the limiting portion is engaged with the operating side bracket through a second screw.

[0023] Furthermore, threaded portions are provided at both ends of the guide beam, and hydraulic locking nuts are also provided, and the hydraulic locking nuts are provided on the side of the operating side bracket away from the transmission side bracket;

[0024] The inner cavity of the hydraulic locking nut has an internal thread corresponding to the threaded portion, one end of the guide beam is connected to the hydraulic locking nut, and the other end is connected to the nut;

[0025] The hydraulic locking nut comprises a first rod barrel and a first piston rod, the inner cavity is arranged in the first piston rod, and one end of the guide beam is connected to the first piston rod;

[0026] One end of the first rod tube is fixedly connected to the outer wall of the operating side bracket.

[0027] Compared with the prior art, the universal rolling mill with a structure for preventing the guide beam tie rod from tilting during the roll changing process described in the present invention has the following beneficial effects:

[0028] (1) The universal rolling mill with a structure for preventing the guide beam tie rod from tilting during roll changing according to the present invention has a copper sleeve installed on the left and right brackets on the operating side at the guide beam installation position to support and position the guide beam to prevent the guide beam from tilting;

[0029] (2) The universal rolling mill described in the present invention has a structure for preventing the guide and guard beam tie rods from tilting during the roll changing process. After the improvement, the universal rolling mill is more convenient to operate during the roll changing process, and the guide and guard beam tie rods are prevented from tilting. The operation is simple during the installation process, thereby improving the maintenance and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 It is a schematic front view of a universal rolling mill having a structure for preventing the guide beam tie rod from tilting during roll changing according to an embodiment of the present invention;

[0032] Figure 2 It is a schematic side view of a universal rolling mill having a structure for preventing the guide beam tie rod from tilting during roll changing according to an embodiment of the present invention;

[0033] Figure 3 A schematic top view of a universal rolling mill having a structure for preventing the guide beam tie rod from tilting during roll changing according to an embodiment of the present invention;

[0034] Figure 4 The embodiment 2 of the present invention Figure 1 Enlarged schematic diagram of the middle II part;

[0035] Figure 5 The embodiment of the present invention 1 Figure 1 Enlarged schematic diagram of the middle II part;

[0036] Figure 6 It is a schematic side view of the guide device according to an embodiment of the present invention;

[0037] Figure 7 It is a schematic diagram of a front view of a guide device according to an embodiment of the present invention;

[0038] Figure 8 This is a schematic diagram of the internal structure of the hydraulic locking nut described in Example 2 of the present invention.

[0039] Description of reference numerals:

[0040] 1-roller; 2-operating side bracket; 21-first conducting hole; 22-operating side left bracket; 23-operating side right bracket; 3-transmission side bracket; 31-second conducting hole; 32-transmission side left bracket; 33-transmission side right bracket; 4-guide beam; 41-limiting part; 411-second screw; 42-threaded part; 43-nut; 5-guide device; 51-upper half; 52-lower half; 6-support assembly; 61-third conducting hole; 62-boss part; 63-flanged part; 64-first screw; 7-countersunk hole; 8-hydraulic locking nut; 81-first rod barrel; 82-first piston rod; 83-inner cavity. DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0042] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0043] A countersunk hole 7 for placing a supporting assembly 6 (including a copper sleeve) is opened on the operating side bracket 2 and the operating side bracket 2, and the copper sleeve is embedded in the countersunk hole 7. The countersunk hole 7 prevents the flange portion 63 of the copper sleeve from interfering with other components. The third conducting hole 61 of the copper sleeve and the guide beam 4 pull rod are processed into a clearance fit. The copper sleeve is installed on the operating side left bracket 22 and the operating side right bracket 23 with a first screw 64. In this way, when installing the guide beam 4, the copper sleeve not only supports the guide beam 4 but also positions the guide beam 4, thereby preventing the guide beam 4 from tilting. Since the guide beam 4 remains horizontal and does not tilt, it is very convenient to install the left bracket and the right bracket on the transmission side, thereby improving the installation speed and working efficiency.

[0044] At the same time, for the connection relationship between the guide beam 4 and the transmission side bracket 3 and the operating side bracket 2, this solution proposes multiple embodiments, the purpose of which is to firmly fix the guide beam 4 on the transmission side bracket 3 and the operating side bracket 2;

[0045] Embodiment 1: One end of the two ends of the guide beam 4 has a threaded portion 42, and the other end has a limiting portion 41 (similar to a large bolt structure). The outer diameter of the limiting portion 41 is larger than the outer diameter of the middle pull rod of the guide beam 4, and the outer diameter of the limiting portion 41 is larger than the inner diameter of the first conductive hole 21, so as to ensure that when the guide beam 4 passes through the first conductive hole 21, the limiting portion 41 can fit the outer wall of the first conductive hole 21 to achieve the limiting effect, and then the middle pull rod portion of the guide beam 4 passes through the fourth conductive hole of the guide device 5 in sequence, and then passes through the second conductive hole 31 on the transmission side, and then the guide beam 4 is tightened by the nut 43 and the gasket at the opening of the second conductive hole 31 away from the first conductive hole 21, so as to achieve the purpose of fixing the guide beam 4 on the operating side bracket 2 and the transmission side bracket 3;

[0046] Embodiment 2: Both ends of the guide beam 4 are threaded portions 42. The connection method of the threaded portion 42 on the transmission side is the same as that of embodiment 1. The difference is that the limit portion 41 in the original embodiment 1 is provided with a hydraulic locking nut 8. The hydraulic locking nut 8 can be fixed by connecting the threaded portion 42 at one end of the guide beam 4 with the internal thread in the inner cavity 83 of the hydraulic locking nut 8. At the same time, the internal thread of the inner cavity 83 is on the first piston rod 82 of the hydraulic locking nut 8. Figure 8 As shown, the specific implementation process is as follows: first, the first piston rod 82 is driven to move rightward, and then the threaded portion 42 at the right end of the guide beam 4 is screwed onto the nut 43. At this time, the guide beam 4 is basically fixed to the operating side bracket 2 and the transmission side bracket 3, but it is not firm enough. At this time, the first piston rod 82 is driven to move leftward, indirectly pulling the guide beam 4 to move leftward. At this time, since the right side of the guide beam 4 has been screwed tightly by the nut 43, when the first piston rod 82 moves leftward, the guide beam 4 is further fixed to the operating side bracket 2 and the transmission side bracket 3, thereby improving the stability of the guide beam 4. Figure 8 The right side of the first copper sleeve is arranged close to the operating side bracket 2.

[0047] Those of ordinary skill in the art will appreciate that the units and method steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0048] In the several embodiments provided in the present application, it should be understood that the disclosed methods and systems can be implemented in other ways. For example, the division of the units described above is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. The above-mentioned units may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present invention.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A universal rolling mill having a structure for preventing the guide beam tie rod from tilting during roll changing, comprising an operating side bracket (2) and a transmission side bracket (3) arranged on both sides of a roll (1), characterized in that: It also includes a guide beam (4), wherein the guide beam (4) is used to fix a guide device (5), and the guide device (5) is used to correct the position of the rolled piece; The two ends of the guide beam (4) are respectively mounted on the operating side bracket (2) and the transmission side bracket (3); The operating side bracket (2) and the transmission side bracket (3) are respectively provided with a first conducting hole (21) and a second conducting hole (31), and both ends of the guide beam (4) are arranged to penetrate the first conducting hole (21) and the second conducting hole (31); It also includes a support assembly (6), wherein a countersunk hole (7) for accommodating the support assembly (6) is provided at an opening portion of the first conductive hole (21) close to one end of the second conductive hole (31), and the support assembly (6) is embedded in the countersunk hole (7); A third conducting hole (61) is provided in the support assembly (6), and the third conducting hole (61) is connected to the inside of the first conducting hole (21); The inner diameter of the third conductive hole (61) is smaller than the inner diameter of the first conductive hole (21), and the inner diameters of the first conductive hole (21), the second conductive hole (31), and the third conductive hole (61) are larger than the outer diameter of the guide beam (4); The operating side bracket (2) comprises an operating side left bracket (22) and an operating side right bracket (23) respectively arranged on the left half and the right half, and the transmission side bracket (3) comprises a transmission side left bracket (32) and a transmission side right bracket (33) respectively arranged on the left half and the right half; The operating side left bracket (22) and the operating side right bracket (23) are each provided with two first conducting holes (21) arranged vertically; The transmission side left bracket (32) and the transmission side right bracket (33) are each provided with two second conducting holes (31) arranged vertically; The operating side bracket (2) is provided with four first conducting holes (21), and the transmission side bracket (3) is provided with four second conducting holes (31); The four first conducting holes (21) and the four second conducting holes (31) form four pairs of conducting holes, and four guide beams (4) are installed between the four pairs of conducting holes; The guide device (5) comprises an upper half (51) and a lower half (52), each of the upper half (51) and the lower half (52) being provided with a fourth conducting hole and being fixed on the guide beam through the fourth conducting hole; The support assembly (6) comprises a boss portion (62) and a flange portion (63), wherein the outer diameter of the flange portion (63) is greater than the outer diameter of the boss portion (62); The countersunk hole (7) on the operating side bracket (2) corresponds to the shape of the supporting assembly (6); The flange portion (63) and the operating side bracket (2) are also fastened together via a first screw (64).

2. A universal rolling mill with a structure for preventing the guide beam tie rod from tilting during roll changing according to claim 1, characterized in that: A guide device (5) is provided on one side of the material inlet and one side of the material outlet of the rolling mill.

3. The universal rolling mill with a structure for preventing the guide beam tie rod from tilting during roll changing according to claim 1, characterized in that: A limiting portion (41) is provided at one end of the guide beam (4), and a threaded portion (42) is provided at the other end; the outer diameter of the limiting portion (41) is greater than the inner diameters of the first conducting hole (21) and the second conducting hole (31); the threaded portion (42) is provided with an external thread; the threaded portion (42) is provided with a corresponding nut (43); the guide beam (4) is fixed to the operating side bracket (2) and the transmission side bracket (3) through the limiting portion (41) and the nut (43).

4. A universal rolling mill with a structure for preventing the guide beam tie rod from tilting during roll changing according to claim 3, characterized in that: The limiting portion (41) is also engaged with the operating side bracket (2) via a second screw (411).

5. The universal rolling mill with a structure for preventing the guide beam tie rod from tilting during roll changing according to claim 1, characterized in that: Both ends of the guide beam (4) are provided with threaded portions (42) and hydraulic locking nuts (8), and the hydraulic locking nuts (8) are arranged on a side of the operating side bracket (2) away from the transmission side bracket (3); The inner cavity (83) of the hydraulic locking nut (8) has an internal thread corresponding to the threaded portion (42); one end of the guide beam (4) is connected to the hydraulic locking nut (8), and the other end is connected to the nut (43); The hydraulic locking nut (8) comprises a first rod tube (81) and a first piston rod (82), an inner cavity (83) is arranged in the first piston rod (82), and one end of the guide beam (4) is connected to the first piston rod (82); One end of the first rod tube (81) is fixedly connected to the outer wall of the operating side bracket (2).

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