A special dismounting device for hot-rolled rough-rolled AWC oil cylinder

Abstract

The utility model discloses a hot roughing AWC oil cylinder special dismounting device, and the device includes oil cylinder platform board, one side fixed mill platform connecting rod of oil cylinder platform board has the upper hanger lug board and is located the top of oil cylinder platform board on the other side away from mill platform connecting rod and is fixed, and the lower hanger lug board and are located the middle part of oil cylinder platform board are fixed below oil cylinder platform board, and the bottom of oil cylinder platform board is installed at least three oil cylinder platform supports perpendicular to oil cylinder platform board. The utility model discloses a hot roughing AWC oil cylinder special dismounting device, simple structure and reasonable in design, and the material of on -the -spot easy can complete processing and preparation, and the quick dismounting and installation of AWC oil cylinder can be realized by using the above -mentioned device, improves the operation efficiency, and the operation process stability is good, avoids the problem that the cable bridge is extruded deformation caused by the gravity center change of AWC oil cylinder possibly happening in the existing dismounting process, and the application prospect is good.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical equipment maintenance technology, and specifically to a special disassembly device for hot-rolled roughing mill AWC cylinders, particularly a device that can quickly disassemble hot-rolled roughing mill AWC cylinders, improve equipment maintenance efficiency, and reduce maintenance workload. Background Technology

[0002] The AWC (Autoclave Control) cylinder is installed in the vertical roll mill of the roughing zone of the hot rolling mill. Its main function is to control the width accuracy of hot-rolled strip, including automatic position control, width control at the head and tail of the strip, short stroke control, rolling slip compensation, and taper compensation. Its primary role is to precisely position the rolls during the rolling process, control the rolled width of the sheet, and improve the sheet shape quality. Due to the harsh working environment, polluted circulating water and iron oxide scale cause poor flow, leading to rust on the stand guide rails and increasing the friction of the stand support. Therefore, the operation of the hydraulic system has a significant impact on the service life of the cylinders, especially since the AWC cylinders are subjected to accumulator oil pressure for extended periods and are installed under the stand. This will severely affect the service life of the AWC cylinders, thus requiring periodic replacement.

[0003] The current maintenance procedure for the AWC hydraulic cylinder is as follows: 1) After the rolling mill stops, the operator uses the operating side balancing device to push the vertical roll directly below the connecting shaft. The connecting shaft is raised, the safety pin is inserted, and then the vertical roll is pushed to the middle, causing the AWC cylinder piston rod to retract; 2) Power off and hang a warning sign; 3) Remove the large vertical roll; 4) Remove electrical components: wires, sensors; 5) Remove the oil pipes and connecting bolts, and store them properly; 6) Remove the guide plate on the hydraulic cylinder piston rod: remove the guide rod pin connecting to the vertical roll frame, use a hoist to remove the guide rod, and install the hydraulic cylinder ejector rod in the middle of the vertical roll arch. Lift the self-made jack between the transmission and operating cylinders. Use one cylinder to push out the other. After the cylinders are in place, use a 50T jack to extend the jack between the jack and the cylinder (or use a different, longer jack). Simultaneously, hang a 5T hoist on the side where the cylinder is being removed to pull the AWC cylinder slowly out, ensuring that the hoist remains level with the cylinder's center of gravity as it moves. Finally, remove the AWC cylinder and lift it away, cleaning the cylinder's mating surfaces. 7) Reinstall the AWC cylinder, using the reverse method of dismantling. 8) Confirm the removal of the tag by all three parties. In the current operation, due to interference from the rolling mill platform, it is difficult to ensure that the AWC cylinder's center of gravity will not be compressed and deformed during dismantling using the hoist and hydraulic jack, causing cable damage and other related equipment damage. Furthermore, the hydraulic jack and hoist are heavy and require multiple adjustments during construction, which greatly inconveniences the operation.

[0004] Therefore, developing a dedicated disassembly device for AWC hydraulic cylinders that is easy to operate and can improve the safety of the operation process is of great practical significance. Utility Model Content

[0005] Due to the aforementioned deficiencies in the existing technology, this utility model provides a special disassembly device for AWC cylinders that is easy to operate and can improve the safety of the operation process. It can effectively improve the disassembly efficiency of AWC cylinders, save manpower and significantly improve the safety of the operation, so as to overcome the defects of the current AWC cylinder disassembly operation being inconvenient and having safety hazards.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A special disassembly device for hot-rolled roughing AWC hydraulic cylinders, including a hydraulic cylinder platform plate;

[0008] A rolling mill platform connecting rod is fixed to one side of the hydraulic cylinder platform plate. An upper lifting lug is fixed to the other side of the hydraulic cylinder platform plate away from the rolling mill platform connecting rod, and the upper lifting lug is located above the hydraulic cylinder platform plate. A lower lifting lug is also fixed to the bottom of the hydraulic cylinder platform plate, and the lower lifting lug is located in the middle of the hydraulic cylinder platform plate. At least three hydraulic cylinder platform supports perpendicular to the hydraulic cylinder platform plate are also installed at the bottom of the hydraulic cylinder platform plate.

[0009] The application method of the above-mentioned special disassembly device for hot-rolled roughing AWC cylinders is as follows:

[0010] Weld the mill platform connecting rod to the mill platform. After the AWC cylinder is pulled out, use a crane to smoothly place it on the cylinder platform plate. Use the upper / lower lifting lugs fixed on the cylinder platform plate as chain hoist fixing points to slowly pull out the AWC cylinder until it is pulled out of the upper mill platform. Then, use a crane to lift it away. The installation of the AWC cylinder is the reverse of the above operation.

[0011] This utility model relates to a special disassembly device for hot-rolled roughing AWC cylinders. It has a simple structure and reasonable design, and can be manufactured using readily available materials. At the same time, the device can achieve rapid disassembly and installation of AWC cylinders, which greatly saves manpower and improves work efficiency compared with existing methods. In addition, the operation process is stable and avoids the problem of cable trays being squeezed and deformed due to changes in the center of gravity of the AWC cylinder that may occur during existing disassembly and assembly processes. It has great application prospects.

[0012] As a preferred technical solution:

[0013] The hot-rolled roughing AWC hydraulic cylinder disassembly device described above has a square plate structure for the hydraulic cylinder platform plate.

[0014] As described above, the special disassembly device for hot-rolled roughing AWC hydraulic cylinders has two upper lifting lugs.

[0015] Two upper lifting lugs are located on opposite sides of the hydraulic cylinder platform plate, and lifting lugs are provided on the upper lifting lugs.

[0016] The upper lifting lug plate is welded to the hydraulic cylinder platform plate.

[0017] As described above, the special disassembly device for hot-rolled roughing AWC cylinders has two lower lifting lugs.

[0018] Two lower lifting lugs are located on opposite sides of the cylinder platform plate. The lower lifting lugs are provided with lifting lugs. The lower lifting lugs extend from below the cylinder platform plate and the lifting lugs are located at the extended part of the lower lifting lugs.

[0019] The lower lifting lug plate is welded to the hydraulic cylinder platform plate.

[0020] As described above, a special disassembly device for hot-rolled roughing AWC cylinders includes four cylinder platform supports, which are welded to the cylinder platform plate.

[0021] The four hydraulic cylinder platform supports are arranged in two rows, namely two hydraulic cylinder platform supports I and two hydraulic cylinder platform supports II;

[0022] The cylinder platform support I is located on the side of the cylinder platform plate away from the mill platform connecting rod, and the cylinder platform support II is located in the middle of the cylinder platform plate.

[0023] As described above, in a hot-rolled roughing AWC hydraulic cylinder disassembly device, the lower lifting lug is welded to the hydraulic cylinder platform support II and the hydraulic cylinder platform plate.

[0024] As described above, a special disassembly device for hot-rolled roughing AWC cylinders is provided, wherein the cylinder platform plate is welded to the mill platform connecting rod.

[0025] The above technical solution is only one feasible technical solution of this utility model. The protection scope of this utility model is not limited to this. Those skilled in the art can reasonably adjust the specific design according to actual needs.

[0026] The above-mentioned utility model has the following advantages or beneficial effects:

[0027] (1) The hot-rolled roughing AWC cylinder disassembly device of this utility model has a simple structure and reasonable design, and can be processed and manufactured using readily available materials on site;

[0028] (2) The hot-rolled roughing AWC cylinder disassembly device of this utility model can realize the rapid disassembly and installation of AWC cylinder by using the above device, which greatly saves manpower and improves work efficiency compared with the existing means.

[0029] (3) The hot-rolled roughing AWC cylinder disassembly device of this utility model has good stability in operation and avoids the problem of cable tray being squeezed and deformed due to the change of the center of gravity of the AWC cylinder in the existing disassembly and assembly process. It has good operation safety and great application prospects. Attached Figure Description

[0030] The present invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings, the emphasis being on illustrating the gist of the invention.

[0031] Figure 1 This is a front view of the special disassembly device for hot-rolled roughing AWC cylinders of this utility model;

[0032] Figure 2 This is a top view of the special disassembly device for hot-rolled roughing AWC cylinders of this utility model;

[0033] Figure 3 This is a left view of the special disassembly device for hot-rolled roughing AWC cylinders of this utility model;

[0034] Among them, 1-cylinder platform plate, 2-rolling mill platform connecting rod, 3-cylinder platform support I, 4-cylinder platform support II, 5-upper lifting lug plate, 6-lower lifting lug plate. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0036] Example 1

[0037] A special disassembly device for hot-rolled roughing AWC hydraulic cylinders, such as Figures 1-3 As shown, it includes a cylinder platform plate 1 with a square plate structure;

[0038] A rolling mill platform connecting rod 2 is welded and fixed on one side of the hydraulic cylinder platform plate 1. Two upper lifting lug plates 5 are welded and fixed on the other side of the hydraulic cylinder platform plate 1 away from the rolling mill platform connecting rod 2. The upper lifting lug plates 5 are located above the hydraulic cylinder platform plate 1. The two upper lifting lug plates 5 are located on opposite sides of the hydraulic cylinder platform plate 1 and have lifting lugs. Two lower lifting lug plates 6 are also welded and fixed below the hydraulic cylinder platform plate 1. The lower lifting lug plates 6 are located in the middle of the hydraulic cylinder platform plate 1. The two lower lifting lug plates 6 are located on opposite sides of the hydraulic cylinder platform plate 1 and have lifting lugs. The lower lifting lug plates 6 extend from below the hydraulic cylinder platform plate 1 and have lifting lugs at the extended part of the lower lifting lug plates 6.

[0039] Four cylinder platform supports perpendicular to the cylinder platform plate 1 are welded and installed at the bottom of the cylinder platform plate 1. The four cylinder platform supports are arranged in two rows, namely two cylinder platform supports I 3 and two cylinder platform supports II 4. Cylinder platform supports I 3 are located on the side of the cylinder platform plate 1 away from the mill platform connecting rod 2, and cylinder platform supports II 4 are located in the middle of the cylinder platform plate 1. The lower lifting lug plate 6 is also welded to the cylinder platform supports II 4.

[0040] The aforementioned hot-rolled roughing AWC cylinder disassembly device has been applied in actual production. The upper and lower lifting lugs are made of ordinary δ10 steel plates with φ50 holes drilled in them; the cylinder platform plate is made of ordinary δ45 steel plates; the mill platform connecting rod is made of 120*85*10 square tubes; and the cylinder platform support is made of 160 channel steel and δ45 steel plate (base plate) welded together.

[0041] The application method of the above-mentioned special disassembly device for hot-rolled roughing AWC cylinders is as follows:

[0042] Weld the mill platform connecting rod to the mill platform. After the AWC cylinder is pulled out, use a crane to smoothly place it on the cylinder platform plate. Use the upper / lower lifting lugs fixed on the cylinder platform plate as chain hoist fixing points to slowly pull out the AWC cylinder until it is pulled out of the upper mill platform. Then, use a crane to lift it away. The installation of the AWC cylinder is the reverse of the above operation.

[0043] Verification has shown that the hot-rolled roughing mill AWC cylinder disassembly device of this invention has a simple structure and reasonable design, and can be manufactured using readily available materials on site. The device enables rapid disassembly and installation of AWC cylinders, greatly saving manpower and improving work efficiency compared to existing methods. The operation process is stable, avoiding the problem of cable tray deformation caused by changes in the center of gravity of the AWC cylinder that may occur during existing disassembly and assembly processes. It has good operational safety and great application prospects.

[0044] Those skilled in the art should understand that variations can be implemented by combining existing technology with the above embodiments, which will not be elaborated here. Such variations do not affect the substantive content of this utility model, and will not be elaborated here.

[0045] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above. Devices and structures not described in detail herein should be understood as being implemented in a conventional manner within the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this utility model using the disclosed methods and techniques, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. This does not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, still fall within the protection scope of the technical solution of this utility model.

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