Rolling mill part replacing device

Abstract

The utility model discloses a rolling mill part replacing device, and belongs to the technical field of strip steel rolling equipment. The sliding rail is arranged on the main body; the movable frame is slidably connected to the sliding rail and provided with a butt joint part, and the butt joint part is used for being connected with a part; after the part is connected with the butt joint part, the movable frame and the part can slide together relative to the sliding rail, and meanwhile the sliding rail supports the part. The parts can be fixed through the butt joint part and are convenient to replace and transfer, the movable frame slides relative to the sliding rail, the parts are directly and stably placed on the sliding rail, the parts can be transferred directly in a sliding mode, the placing position can be adjusted according to different sizes of the parts, the parts can be conveniently transferred to the device, and the practicability is high. The placing position can be adjusted according to different sizes of parts, quick replacement of the parts is effectively completed, adaptability is high, the part replacement efficiency is improved, the replacement difficulty is lowered, and operation is safer.

Description

Technical Field

[0001] The present application belongs to the technical field of strip steel rolling equipment, and in particular relates to a rolling mill parts replacement device. Background Art

[0002] The bending roll block of the hot rolling mill is generally located at the waist position inside the window of the rolling mill arch and is fixed to the arch by bolts. The bending roll block is the core equipment of the hot rolling mill and is installed on the arch contact surface of the entrance and exit operation side (OS) and the transmission side (DS) of the rolling mill arch respectively. A total of 4 bending roll blocks are installed on each hot rolling mill. The bending roll block is controlled by a hydraulic servo valve and powered by hydraulic oil. The bending roll plunger acts on the upper and lower working rolls to quickly change the gap between the working rolls and control the strip shape.

[0003] When rolling strip steel with high specifications and high plate shape requirements, the functional accuracy of the bending roll block is crucial, so the internal wearing parts of the bending roll block need to be replaced regularly. Therefore, the online replacement and daily maintenance of the bending roll block are one of the important tasks of equipment maintenance personnel. In actual production, when the bending roll block of the hot rolling unit suddenly fails or reaches the end of its service life, the bending roll block in the rolling mill needs to be removed and replaced. In order to ensure the production efficiency of the hot rolling unit, the replacement efficiency of the bending roll block is crucial.

[0004] Although the prior art has a device to assist in replacing the bending roll block, the actual operation is not very convenient. In addition, the bending roll block is located inside the rolling mill, the space is small, and there is no hoisting position. The bending roll block replacement process is extremely complicated, the replacement time is long, and the risk factor is high. Therefore, the replacement efficiency of the bending roll block and the safety of the replacement process need to be greatly improved. Utility Model Content

[0005] The present application aims to at least to some extent solve the technical problem of the inconvenient operation of replacing bending roll blocks. To this end, the present application provides a rolling mill parts replacement device, which can adjust the placement position according to the different sizes of parts, effectively complete the rapid replacement of parts, and has strong adaptability, thereby improving the efficiency of parts replacement, reducing the difficulty of replacement, and making the operation safer.

[0006] The present application provides a rolling mill parts replacement device, which includes:

[0007] main body;

[0008] A slide rail is provided on the main body;

[0009] The movable frame is slidably connected to the slide rail, and the movable frame is provided with a docking portion, which is used to connect with the parts; wherein, after the parts are connected with the docking portion, the movable frame and the parts can slide together relative to the slide rail, and the slide rail supports the parts.

[0010] In an optional embodiment, the docking portion is provided with a plurality of connection holes, and the plurality of connection holes are arranged vertically and spaced apart.

[0011] In an optional embodiment, a transmission matching piece is also included, a part of the transmission matching piece is connected to the slide rail, and the other part of the transmission matching piece is connected to the movable frame, and the two parts of the transmission matching piece can move relative to each other along a straight line.

[0012] In an optional embodiment, the transmission matching part includes a rack and a gear that mesh with each other, the rack is arranged on the movable frame, and the gear is arranged on the slide rail.

[0013] In an optional embodiment, the racks are arranged along the two side directions of the main body, and the racks are slidable relative to the gears along the two side directions of the main body.

[0014] In an optional embodiment, a plurality of slide rails are provided, and the plurality of slide rails are arranged along two sides of the main body.

[0015] In an optional embodiment, the slide rail is arranged in a horizontal direction, the docking portion slides laterally relative to the slide rail, and when the movable frame is at the end of the slide rail, the docking portion can be connected to the part.

[0016] In an optional embodiment, the main body includes a connecting plate and at least two bases, one of which is connected to a movable frame, adjacent bases are spaced apart and connected by the connecting plate, and all bases can be arranged to overlap.

[0017] In an optional embodiment, the main body further comprises a hook for connecting with a traction device, and the hook is connected to a base located at the end.

[0018] In an optional embodiment, the main body further includes a plurality of running wheels, and the running wheels are arranged on the base.

[0019] It can be seen from the above technical solution that the beneficial effects of this application are:

[0020] The present application can fix parts through the docking part to facilitate replacement and transfer. The movable frame is used to slide relative to the slide rail to place the parts directly on the slide rail. The parts are stably placed and can be transferred directly by sliding. The placement position can be adjusted according to the different sizes of the parts, which makes it convenient to transfer the parts to the device. Conversely, it is also convenient to move the parts and fix them to the installation position, so as to realize the installation of new parts and effectively complete the rapid replacement of parts. It has strong adaptability, thereby improving the efficiency of part replacement, reducing the difficulty of replacement, and making the operation safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other embodiments and drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 The figure shows the installation schematic diagram of the embodiment of the parts of the utility model;

[0023] Figure 2 A schematic diagram of an embodiment of the rolling mill parts replacement device of the utility model is shown;

[0024] Figure 3 A top view of an embodiment of a rolling mill parts replacement device of the utility model is shown;

[0025] Figure 4 A schematic diagram showing the connection between the movable frame and the slide rail of the utility model;

[0026] Figure 5 A schematic diagram showing the connection between the movable frame and the slide rail of the utility model;

[0027] Figure 6 The front view of the embodiment of the rolling mill parts replacement device of the utility model is shown;

[0028] Figure 7 The first step of using the rolling mill parts replacement device of the utility model is shown;

[0029] Figure 8 The second use process of the rolling mill parts replacement device of the utility model is shown;

[0030] Fig. 9 The third using process of the rolling mill parts replacement device of the utility model is shown;

[0031] Fig.10 The fourth using process of the rolling mill parts replacement device of the utility model is shown;

[0032] Fig.11 The fifth using process of the rolling mill parts replacement device of the utility model is shown;

[0033] Fig.12 The sixth use process of the rolling mill parts replacement device of the utility model is shown;

[0034] : 100, replacement device; 110, movable frame; 111, docking part; 120, slide rail; 130, transmission fitting; 131, rack; 132, gear; 140, main body; 141, base; 141a, first base; 141b, second base; 142, connecting plate; 143, hook; 144, walking wheel; 200, parts; 300, archway; 400, working roller; 500, roller changing track. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0039] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0040] Please refer to Figure 1 , Figure 2 and Figure 3In an embodiment of the present application, a rolling mill parts replacement device is provided. Part 200 is used in the rolling mill. Here, part 200 is a bending roll block. In other rolling mills, part 200 may also be other structures. The bending roll block, as an important component of the hot rolling mill, is located on the waist block of the frame and fixed to the arch 300. Working rolls 400 are arranged between adjacent bending roll blocks. The bending roll block mainly plays the role of quickly changing the shape of the roll gap. The replacement device 100 includes a main body 140, a slide rail 120 and a movable frame 110. The main body 140 provides an installation foundation for the slide rail 120 and the movable frame 110 and plays a supporting role. The slide rail 120 is arranged on the main body 140. The slide rail 120 is a guide rail structure. The slide rail 120 is fixed to the main body 140 by bolting, screwing or welding. The main body 140 can be moved by manual, electric drive or auxiliary equipment to adjust the position of the main body 140 relative to the installation position of the part 200; the movable frame 110 is slidably connected to the slide rail 120. The bottom of the movable frame 110 is provided with a slide groove matching the slide rail 120. The bottom of the movable frame 110 and the slide rail 120 are mutually limited, and the movable frame 110 can move along the two ends of the slide rail 120 relative to the slide rail 120. The movable frame 110 is provided with a docking portion 111 The docking parts 111 are located on both sides of the movable frame 110, so that the movable frame 110 can be docked with the part 200 when sliding to the left or right in the figure, and can be connected and fixed by bolting, screwing or other means. When the movable frame 110 slides on the slide rail 120, a reasonable width space can be left on the slide rail 120 according to the width of the bending roller block, so as to facilitate the position adjustment so that the part 200 is placed on the slide rail 120; after the part 200 is hoisted to the slide rail 120 and the part 200 is connected to the docking parts 111, the movable frame 110 and the part 200 slide relative to the slide rail 120 together, and the part 200 is always placed on the slide rail 120, and the slide rail 120 supports the part 200. The slide rail 120 provides a good placement platform for the part 200 and provides good conditions for the replacement of the bending roller block.

[0041] The existing bending roll block repeatedly acts on the upper and lower working rolls 400 during the strip rolling process, causing the bending roll block plunger and internal parts 200 to be subjected to huge pressure. In addition, during the strip rolling process, the internal pressure of the bending roll block changes repeatedly, causing the interior to be subjected to more alternating stresses, and the interior of the bending roll block and the plunger to be subjected to greater working pressure. In addition, the bending roll block is subjected to long-term impact of the strip and internal vibration of the rolling mill, the surface is repeatedly washed by high-pressure water, and is at high temperature for a long time and the temperature is very easy to change suddenly. Therefore, it is necessary to regularly remove the bending roll block in the rolling mill unit and perform offline repair on the bending roll block. However, the existing hot rolling mill bending roll block replacement process is cumbersome, inconvenient to operate, difficult to replace, and has a high risk factor and a complicated replacement process. The present application can fix the part 200 through the docking part 111, which is convenient for replacement and transfer. The movable frame 110 is used to slide relative to the slide rail 120 to place the part 200 directly on the slide rail 120. The part 200 is stably placed and can be transferred directly by sliding. The placement position can be adjusted according to the different sizes of the part 200, which is convenient for transferring the part 200 to the device. Conversely, it is also convenient to move the part 200 and fix it to the installation position, so as to achieve the installation of the new part 200, effectively complete the rapid replacement of the part 200, and has strong adaptability, thereby improving the replacement efficiency of the part 200, reducing the difficulty of replacement, and making the operation safer. In addition, the replacement device 100 has a simple structure and is easy to manufacture. In terms of improving the replacement efficiency, the present application has significant advantages over the prior art. According to the current 7 sets of bending roll blocks in the finishing rolling area of ​​a hot rolling production line of a steel plant, they are replaced every 2 years, and the replacement time is shortened by 8 hours each time. The annual replacement of the bending roll blocks saves 28 hours and the maintenance cost is saved by 100,000 yuan.

[0042] Please refer to Figure 4 In an optional embodiment, the docking portion 111 is provided with a plurality of connection holes, and the plurality of connection holes are arranged vertically and spaced apart. For example, the docking portion 111 is provided with three connection holes, upper, middle and lower, and spaced apart. The connection holes are opposite to the holes of the bending roller block, and the bending roller block can be connected and fixed to the docking portion 111 by bolting, so that it is convenient to transfer the bending roller block after it leaves the installation position. In an optional embodiment, a plurality of slide rails 120 are provided, such as two parallel ones, and there is a space between the two slide rails 120. The movable frame 110 is respectively stuck with the slide rails 120 and slides relatively. The plurality of slide rails 120 are arranged along the two sides of the main body 140, and the two sides of the main body 140 are its left and right sides. The slide rails 120 are also arranged according to the left and right sides of the main body 140, so that the bending roller block can slide from the left or right side of the main body 140 to the slide rails 120. In an optional embodiment, the slide rail 120 is arranged in a horizontal direction, and the docking portion 111 slides laterally relative to the slide rail 120. When the movable frame 110 is at the end of the slide rail 120, the docking portion 111 can be connected to the part 200, and the slide rail 120 can slide laterally on the slide rail 120 together with the docking portion 111 along with the movable frame 110.

[0043] Please refer to Figure 5 In an optional embodiment, it also includes a transmission fitting 130, which is divided into two parts. One part of the transmission fitting 130 is connected to the slide rail 120, and the other part of the transmission fitting 130 is connected to the movable frame 110. The two parts of the transmission fitting 130 can move relative to each other along a straight line. The two parts of the transmission fitting 130 cooperate with each other, such as in a meshing manner. The transmission fitting 130 serves as a structure to assist the movable frame 110 and can assist the movable frame 110 in sliding on the slide rail 120. In an optional embodiment, the transmission fitting 130 includes a rack 131 and a gear 132 that mesh with each other. The rack 131 is provided on the movable frame 110, and the gear 132 is provided on the slide rail 120. The gear 132 is located in the middle of the slide rail 120. The gear 132 is rotatable relative to the slide rail 120, and the rack 131 and the gear 132 always remain meshed. The rack 131 is provided at the bottom of the movable frame 110 and fixed by screws. The rack 131 is arranged along both sides of the main body 140, and the rack 131 is slidable along both sides of the main body 140 relative to the gear 132. Through the arrangement of the rack 131 and the gear 132, the relative movement of the movable frame 110 relative to the slide rail 120 can be limited to a straight line, thereby assisting the movement of the movable frame 110 and keeping the movable frame 110 sliding along a straight line.

[0044] Please refer to Figure 6 In an optional embodiment, the main body 140 includes a connecting plate 142 and at least two bases 141, one of the bases 141 is connected to the movable frame 110, and the other bases 141 are used for folding, and adjacent bases 141 are spaced apart and connected by the connecting plate 142, and all bases 141 can be arranged in an overlapping manner. Specifically, the two ends of the connecting plate 142 are respectively hinged to the ends of adjacent bases 141 and fixed by pins, and connecting plates 142 are arranged on both sides of the left and right sides of the joints of adjacent bases 141, so that the adjacent bases 141 can be folded through the connecting plates 142 to form an overlapping form; after overlapping, the bases 141 significantly reduce the occupied area of ​​the main body 140, save the use space, and are convenient for storage. When in use, multiple bases 141 can be unfolded. In an optional embodiment, the base 141 has two parts, including a first base 141a and a second base 141b. The first base 141a and the second base 141b can overlap. The first base 141a and the second base 141b are connected at the joint by a connecting plate 142. The end of the first base 141a is used to connect to the traction device, and the slide rail 120 and the movable frame 110 are arranged near the end of the second base 141b.

[0045] In an optional embodiment, the main body 140 also includes a hook 143 for connecting to a traction device, such as a working roll changing trolley. The hook 143 is connected to a base 141 located at the end, and the hook 143 is configured to be bent in an L-shape. The hook 143 is connected to a roll changing hook, which is the connecting end of the traction device. The traction device can be fixed to the hook 143 through the roll changing hook, and the main body 140 is provided with power through the traction device so as to slide on the roll changing track 500, so that the main body 140 can be dragged to move on the roll changing track 500 through the hook 143. In an optional embodiment, the main body 140 also includes a plurality of running wheels 144, and the running wheels 144 are arranged on the base 141. Each base 141 is provided with four running wheels 144, and two are installed on each side of the base 141. The running wheels 144 on both sides of the base 141 can use different wheels according to the operating side and the transmission side. The running wheels 144 are installed in an existing wheel installation structure. The width between the running wheels 144 on both sides of the base 141 is consistent with the width of the roller changing track 500, so that the running wheels 144 are matched with the roller changing track 500, which can ensure that the main body 140 slides smoothly on the roller changing track 500.

[0046] Please refer to Figure 7-Figure 12 The operating principle of the present application is: first, pull out the upper and lower working rolls 400 next to the installation position of the finished roll block, drop the replacement device 100 on the work roll replacement track 500, slide the main body 140 in front of the replacement tooling, cooperate with the roll replacement hook 143, and provide forward power through the working roll roll replacement trolley to push the replacement device 100 into the arch 300 of the rolling mill, and park the movable frame 110 next to the bending roll block to be replaced, push the movable frame 110 to the other side of the bending roll block to be replaced, and reserve a suitable storage space for the bending roll block according to the width of the bending roll block. After the bending roll block is removed, the bending roll block is hoisted onto the slide plate by the lifting sling, and then the bending roll block and the movable frame 110 are fixed, and the backward power is provided by the roll replacement trolley to pull the replacement device 100 and the bending roll block to be replaced out of the rolling mill to complete the removal of the bending roll block. According to the reverse operation process of the above steps, the reinstallation of the bending roll block can be completed by reverse operation.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", "optional example" or "optional implementation" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0048] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0049] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A rolling mill parts replacement device, characterized in that: include: Subject (140); A slide rail (120) disposed on the main body (140); A movable frame (110) is slidably connected to the slide rail (120), and the movable frame (110) is provided with a docking portion (111), and the docking portion (111) is used to connect with the part (200); wherein, after the part (200) is connected to the docking portion (111), the movable frame (110) and the part (200) can slide together relative to the slide rail (120), and the slide rail (120) supports the part (200).

2. The rolling mill parts replacement device according to claim 1, characterized in that: The docking portion (111) is provided with a plurality of connection holes, and the plurality of connection holes are arranged vertically and spaced apart.

3. The rolling mill parts replacement device according to claim 1, characterized in that: It also includes a transmission fitting (130), a part of which is connected to the slide rail (120), and another part of which is connected to the movable frame (110), and the two parts of which can move relative to each other along a straight line.

4. The rolling mill parts replacement device according to claim 3, characterized in that: The transmission matching component (130) comprises a rack (131) and a gear (132) meshing with each other; the rack (131) is arranged on the movable frame (110), and the gear (132) is arranged on the slide rail (120).

5. The rolling mill parts replacement device according to claim 4, characterized in that: The rack (131) is arranged along the two side directions of the main body (140), and the rack (131) is slidable relative to the gear (132) along the two side directions of the main body (140).

6. The rolling mill parts replacement device according to claim 1, characterized in that: A plurality of the slide rails (120) are provided, and the plurality of the slide rails (120) are arranged along two side directions of the main body (140).

7. The rolling mill parts replacement device according to claim 6, characterized in that: The slide rail (120) is arranged in a horizontal direction, the docking portion (111) slides laterally relative to the slide rail (120), and when the movable frame (110) is at the end of the slide rail (120), the docking portion (111) can be connected to the part (200).

8. The rolling mill parts replacement device according to any one of claims 1 to 7, characterized in that: The main body (140) comprises a connecting plate (142) and at least two bases (141), wherein one of the bases (141) is connected to the movable frame (110), adjacent bases (141) are spaced apart and connected via the connecting plate (142), and all the bases (141) can be arranged in an overlapping manner.

9. The rolling mill parts replacement device according to claim 8, characterized in that: The main body (140) further comprises a hook (143) for connecting with a traction device, and the hook (143) is connected to the base (141) located at the end.

10. The rolling mill parts replacement device according to claim 8, characterized in that: The main body (140) further comprises a plurality of running wheels (144), and the running wheels (144) are arranged on the base (141).

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