A vertical roller assembly protection plate assembly and quick disassembly method

Abstract

The present invention relates to the field of mechanical equipment assembly technology, and solves the problem that the existing vertical roller machine protective plate design is unreasonable, does not fit the actual production application requirements, causes inconvenience in vertical roller replacement, and has poor process accuracy of vertical roller rolling. Specifically, it is a vertical roller assembly protective plate assembly and a quick disassembly method, including a separate protective mechanism, the outer side of the separate protective mechanism is provided with a vertical roller and a vertical roller lower bearing seat, the separate protective mechanism includes a double-ear protective plate and a positioning connecting member, and the double-ear protective plate is installed on the vertical roller lower bearing seat. The present invention can be used to clamp and install a movable guide plate on the double-ear protective plate through the cooperation between the internal structures of the separate protective mechanism, so as to eliminate the large gap between the frame roller and the vertical roller roller ring, and between the separate protective mechanism and the frame roller after the vertical roller is replaced, so as to prevent the head of the intermediate billet of the rolled piece from frequently drilling into the gap to cause scrap steel when the vertical roller machine is in use.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical equipment assembly, and in particular to a vertical roller assembly protection plate component and a quick disassembly method. Background Art

[0002] The rough rolling mill equipment of the hot-rolled plate production line generally adopts a configuration in which the vertical rolls are connected to the horizontal rolls. The vertical roll mill is connected to the inlet side of the horizontal roll rough rolling mill. It is mainly used to control the width and shape of the intermediate billet, improve the edge structure and surface quality of the intermediate billet, and avoid edge cracks during the horizontal free rolling process of the next process. It also has the function of breaking scales. The vertical roll mill is mainly divided into two parts. One part is the main transmission system, which drives the rolls to roll through the reducer and the cross universal joint. The other part is the side pressure transmission system of the vertical roll mill. The side pressure devices are distributed on both sides of the vertical roll mill. The AWC hydraulic cylinder installed on the frame and the balance hydraulic cylinder on the corresponding side jointly adjust the position of the vertical roll assembly. The opening degree of the vertical roll can be adjusted and it is equipped with short stroke control (SSC) function and automatic width control (AWC) function.

[0003] The existing vertical roller mill is provided with a frame roller at the entrance and exit sides respectively, which is used to guide the intermediate billet to bite in. At the same time, two auxiliary vertical roller rolling protection plates are provided when the vertical rollers are assembled, which is convenient for the elevation control of the intermediate billet during rolling and prevents the intermediate billet from directly hitting the vertical rollers. Due to the defects in the vertical roller assembly design and the use of turning processing of the existing vertical roller mill, many hidden dangers are brought to the production quality and related equipment. The specific problems are as follows:

[0004] (1) The intermediate billet on the upper frame of the vertical roller can easily drill into the gap between the vertical roller assembly protective plate and the E2 frame roller, causing process accidents. Considering the replacement requirements of the vertical roller assembly, a 60mm gap is left on one side between the lower protective plate and the upper frame of the existing E2 rolling mill vertical roller assembly, the gap between the frame roller and the vertical roller ring is 490mm, and the gap between the protective plate and the frame roller is greater than 185mm. When the horizontal roller is rolling the even-pass buckle, the vertical roller opens the outer contour of the protective plate and overlaps the rolled product by less than 26mm. The head of the intermediate billet of the rolled product will drill into the gap many times, causing a process accident of scrap steel. The current method to eliminate this gap is to cut, make and weld a 175mm small guide plate after each vertical roller replacement, and weld it to the vertical roller protective plate with precise alignment. It is also necessary to ensure a smooth transition between the welded guide plate, the protective plate and the frame roller surface to prevent process accidents, which is quite troublesome.

[0005] (2) The vertical roller upper bearing seat vertical roller protection plate cuts the edge of the product, resulting in quality defects; the vertical roller protection plate is a fixed plate installed on the lower bearing seat, with sharp edges. It cannot be updated or repaired in time after rapid wear. When the intermediate billet passes through, the edge of the lower surface of the intermediate billet is very easy to be scratched by the protection plate and the sharp roller ring of the roller, and finally the finished product is forced to be trimmed.

[0006] (3) Each time the vertical rollers are replaced, the extended guide plate of the welding guard plate increases the operation time by about 1.5 hours and labor costs;

[0007] Each time the E2 rolling mill replaces the vertical rolls, it is necessary to cut and weld the extended small guide plates. Before each vertical roll replacement, 0.5 hours are required to cut the small guide plates. After the vertical roll replacement, it still takes 1 hour to perform precise positioning and welding of the small guide plates, resulting in high labor costs. In addition, since the operators work within the full hydraulic working stroke of the vertical rolls, there are certain safety hazards to the operators.

[0008] (4) Separate protection mechanism: The middle part of the existing E2 rolling mill vertical roll assembly protection plate is designed with a sharp opening. The transition zone is extremely sharp, and the protection plate is designed to be too narrow, with a gap greater than 30 mm between the vertical roll ring and the vertical roll ring. As the roll ring is processed, the maximum gap between the vertical roll ring and the protection plate will exceed 60 mm. As the protection plate was originally designed as an integral part and cannot be widened, it cannot be adjusted with the wear of the rollers and the protection plate. When the head and plate shape of the intermediate billet are poor, they will hit the gap area between the roll ring and the protection plate, which is very likely to cause edge cutting defects.

[0009] (5) The existing E2 vertical roller protection plate for the intermediate billet is costly;

[0010] The overall weight of the protective plate for the vertical roll assembly of the E2 rolling mill is 798KG. During its service life, only the upper 10mm position is worn. To ensure process accuracy, it needs to be replaced after 5mm of wear, otherwise it will affect the edge quality of the product. Currently, one piece must be replaced every year, which wastes a lot of labor and spare parts costs. Most practices do not update it and ignore the impact of the protective plate on the product.

[0011] (6) Chips (broken iron) during vertical roll rolling cause equipment failure;

[0012] The scraped iron products of the vertical rollers fall between the frame and the slide of the vertical roller box many times, generating a large number of chips from the edge of the intermediate billet around the vertical roller box. The chips and iron fragments are sharp and vary in size and shape, causing the vertical rollers to get stuck many times. The chips also generate a large amount of iron fragments that pile up under the rolling mill frame, blocking the water channel and making it difficult to clean. They also cause the related hydraulic lubrication pipeline equipment to be buried, causing hidden equipment failures.

[0013] In summary, in order to reduce the assembly and replacement time of the large vertical rolls of the vertical roll mill, improve the vertical roll rolling environment, improve the edge quality of the product, reduce equipment failures and operating costs, improve design defects, and eliminate safety hazards in the vertical roll replacement operation, it is urgent to provide a vertical roll protection plate assembly and a quick disassembly and assembly method to solve the above problems. Summary of the invention

[0014] In view of the shortcomings of the prior art, the present invention provides a vertical roller assembly protection plate component and a quick disassembly and assembly method, the purpose of which is to shorten the assembly and replacement time of the large vertical rollers of the vertical roller rolling mill, improve design defects to reduce equipment failure rate and operating costs, and solve the problems that the existing vertical roller machine protection plate design is unreasonable, does not fit the actual production application requirements, causes inconvenience in vertical roller replacement, and has poor process accuracy of vertical roller rolling.

[0015] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vertical roller assembly protection plate assembly and a quick disassembly method, wherein the protection plate assembly includes a separate protection mechanism, a vertical roller and a vertical roller lower bearing seat are arranged on the outer side of the separate protection mechanism, and the separate protection mechanism includes a double-ear protection plate member and a positioning connection member, the double-ear protection plate member is installed on the vertical roller lower bearing seat, and the double-ear protection plate member is connected to a movable guide plate member and a guide plate support member;

[0016] The guide plate support member includes a support base, one end of the support base is provided with two sixth pin holes, and the other end of the support base is provided with a seventh pin hole;

[0017] The movable guide plate member includes a guide plate seat, and one end of the guide plate seat is symmetrically provided with two fifth pin holes, and the inner diameter of the fifth pin hole is equal to that of the seventh pin hole.

[0018] An upper frame of a vertical roller is arranged on the upper side of the separate protection mechanism, an upper bearing seat of a vertical roller is installed on the inner side of the upper frame of the vertical roller, a lower frame of a vertical roller is connected to the outer side of the lower bearing seat of the vertical roller, two frame rollers are symmetrically arranged on the upper side of the lower frame of the vertical roller, and an intermediate blank is arranged on the frame roller.

[0019] A guide angle is arranged at one end of the guide plate seat close to the fifth pin hole, and two groups of four fourth pin holes are symmetrically arranged on both side walls of the guide plate seat.

[0020] The double-ear protection plate comprises a double-ear base, on which two groups of six screw holes are symmetrically arranged, and the double-ear base is fixedly connected to the lower bearing seat of the vertical roller by bolts passing through the screw holes, and two groups of first pin holes, second pin holes and third pin holes are symmetrically arranged on the top of the double-ear base.

[0021] Two approximately L-shaped thin-walled variable-section plates are symmetrically arranged on the top of the double-ear base, and each group of first pin holes, second pin holes and third pin holes are evenly arranged on the thin-walled variable-section plates.

[0022] The first pin hole has an inner diameter equal to that of the fourth pin hole, and the third pin hole has an inner diameter equal to that of the sixth pin hole.

[0023] The positioning connecting piece includes a first type pin shaft, a second type pin shaft and a third type pin shaft, and the first type pin shaft is clamped with the third pin hole and the sixth pin hole.

[0024] The second type pin shaft is clamped with a group of fourth pin holes and the first pin hole, and the third type pin shaft is clamped with the fifth pin hole and the seventh pin hole.

[0025] On the other hand, the present invention also provides a method for quickly disassembling and assembling a roller assembly protection plate assembly, the method comprising the following steps:

[0026] Prepare the equipment shutdown conditions and close the hydraulic system valves, and manually remove the type II and type III pins installed on the movable guide plate;

[0027] Hydraulically lift out the vertical roller universal joint, disengage the vertical roller transmission, use the C-hook to smoothly lift out the vertical roller, and then lift in the new vertical roller again;

[0028] Reinstall the vertical roller assembly. After the vertical roller assembly is hoisted into place, pull the vertical roller back to the balanced position;

[0029] The separated protective mechanism is reassembled and packaged.

[0030] The reassembly and packaging operation of the separated protection mechanism includes the following steps:

[0031] Lift the movable guide plate part, and re-pass the second type pin shaft through the first pin hole and a set of fourth pin holes to complete the assembly between the guide plate seat and the double-ear base;

[0032] Lift the guide plate support component away from one end of the double-ear protection plate component to a position corresponding to the connection with the movable guide plate component, pass the three-type pin shaft through the fifth pin hole and the seventh pin hole, and perform the clamping assembly between the support clamping seat and the guide plate seat.

[0033] Compared with the prior art, the present invention provides a vertical roller assembly protection plate assembly and a quick disassembly method, which has the following beneficial effects:

[0034] 1. Through the cooperation between the internal structures of the separate protection mechanism, the movable guide plate can be clamped and installed on the double-ear protection plate to eliminate the large gap between the frame roller and the roller ring of the vertical roller, and between the separate protection mechanism and the frame roller after the vertical roller is replaced, so as to prevent the head of the intermediate billet of the rolled piece from frequently drilling into the gap to cause scrap steel when the vertical roller mill is in use; at the same time, since the upper surface of the guide plate seat is designed as an integral surface and contacts with the intermediate billet to achieve a smooth transition, the edge surface of the intermediate billet product will not be scratched.

[0035] 2. The movable guide plate part and the double-ear protection plate part are designed to be separated, and the movable guide plate part and the double-ear protection plate part are pin-connected. At the same time, the movable guide plate part and the double-ear protection plate part are also pin-connected with the guide plate support part. The guide plate support part decomposes the stress condition of the guide plate seat pin shaft and effectively decomposes the overturning moment borne by the guide plate seat. At the same time, the guide plate support part adopts a double hinge point design. When the vertical roller is quickly replaced, it can droop freely to achieve rapid disassembly and assembly. After the edge of the guide plate seat is worn, the movable guide plate part can be replaced in time and conveniently to ensure product quality.

[0036] 3. The second type pin shaft is connected with a group of the fourth pin hole and the first pin hole to form a positioning mechanism; the third type pin shaft is connected with the fifth pin hole and the seventh pin hole to form another positioning mechanism; the stress condition of a single positioning can be avoided to ensure the safety and reliability of the support seat. At the same time, it has the effect of rapid disassembly and assembly when replacing the vertical roller. When the vertical roller is disassembled and replaced, only the second type pin shaft and the third type pin shaft need to be disassembled and installed, and the time cost and labor cost are greatly reduced compared with the prior art.

[0037] 4. The existing E2 rolling mill vertical roll assembly protection plate is too narrow, and the gap between the protection plate and the vertical roll ring is greater than 30mm. As the roll ring processing proceeds, the maximum gap between the vertical roll ring and the protection plate will exceed 60mm. Through the separate design inside the separate protection mechanism, the guide plate seats of different widths can be easily replaced and widened according to the actual process processing needs, and can be adjusted in time with the wear of the vertical roll roller and the wear of the guide plate seat.

[0038] 5. During the product processing, the guide plate seat guides the intermediate billet and assists the vertical roller rolling. During processing, the intermediate billet only contacts the guide plate seat, causing wear on the contact surface between the guide plate seat and the intermediate billet. Since the structural weight of the guide plate seat accounts for a small proportion of the entire separate protection mechanism, only replacing the movable guide plate parts can ensure the accuracy of the intermediate billet processing, which significantly reduces the cost and reduces the waste. The economy of the separate protection mechanism is improved.

[0039] 6. The movable guide plate plays the role of elevation control and auxiliary vertical roller rolling guide; the movable guide plate is provided to prevent the intermediate blank from directly hitting the vertical roller. Therefore, after the structure of the protective component is optimized and improved in the present invention, the intermediate blank head has a better guiding function, which can reduce the generation of cutting scraps.

[0040] Other features and advantages of the present invention will be described in the following description, and partly become obvious from the description, or be understood by implementing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 A general cross-sectional view of a vertical roller mill guard plate assembly according to the prior art is shown;

[0043] Figure 2 A general cross-sectional view of a protective plate assembly of an edger mill according to an embodiment of the present invention is shown;

[0044] Figure 3 A schematic diagram of a guide plate support according to an embodiment of the present invention is shown;

[0045] Figure 4 A schematic diagram of a movable guide plate member according to an embodiment of the present invention is shown;

[0046] Figure 5 A schematic diagram of a double ear protection plate according to an embodiment of the present invention is shown;

[0047] Figure 6 Shows a general stereoscopic view of a protective plate assembly of an edger mill according to an embodiment of the present invention;

[0048] Figure 7 A schematic diagram showing a separate protection mechanism according to an embodiment of the present invention in a vertical roller replacement state.

[0049] In the figure: 1. upper frame of vertical roller; 2. upper bearing seat of vertical roller; 3. roller of vertical roller; 4. separate protection mechanism; 41. double-ear protection plate; 411. double-ear base; 412. screw hole; 413. first pin hole; 414. second pin hole; 415. third pin hole; 42. movable guide plate; 421. guide plate seat; 422. fourth pin hole; 423. fifth pin hole; 43. guide plate support; 431. support seat; 432. sixth pin hole; 433. seventh pin hole; 44. positioning connecting piece; 441. type one pin shaft; 442. type two pin shaft; 443. type three pin shaft; 5. intermediate blank; 6. frame roller; 7. lower bearing seat of vertical roller; 8. lower frame of vertical roller. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] Please refer to Figure 1 , showing the general cross-sectional view of the existing vertical roll mill protection plate assembly. The protection plate assembly on the outside of the vertical roll roller 3 is an integral structure. The protection plate assembly is used to control the elevation of the intermediate billet during rolling to ensure that the intermediate billet can directly hit the vertical roll roller 3, and plays the role of assisting the vertical roll rolling. In order to meet the assembly and replacement requirements of the vertical roll roller 3, a 60mm gap is left on one side between the lower protection plate fixed to the vertical roll assembly of the E2 rolling mill and the upper frame, the gap between the frame roller and the vertical roll ring is 490mm, and the gap between the protection plate and the frame roller is greater than 185mm. When the horizontal roll is rolled in an even-pass buckle, the vertical roll opens the outer contour of the protection plate The overlap with the rolled piece is less than 26mm. During the processing and manufacturing of the rolled piece, the head of the rolled piece intermediate billet will drill into the gap many times to cause scrap steel and process accidents. However, considering the assembly and replacement of the vertical roller 3, the above gap must be reserved. Therefore, at present, after each replacement of the vertical roller, a 175mm small guide plate cut and made is welded on the protective plate. The gap is controlled by welding the small guide plate. During welding, it is necessary to ensure a smooth transition between the welding guide plate and the protective plate and the surface of the frame roller to prevent process accidents. When the vertical roller is replaced next time, the small guide plate on the protective plate needs to be cut off. The process is cumbersome and the time and labor costs are high.

[0052] Due to the heavy weight of the protective plate assembled on the vertical roll of the E2 rolling mill, only the upper 10mm position is worn during the service life of the protective plate. To ensure the process accuracy, it needs to be replaced when it is worn 5mm, otherwise it will affect the quality of the edge of the product. At present, one piece must be replaced every year. Because the existing protective plate is set as an integral part, in order to replace the material of the 5mm area worn on the upper part of the structure, the protective plate is replaced as a whole, which wastes a lot of labor and spare parts costs. Therefore, in actual production, in order to save costs, the operator did not replace the worn protective plate in time, which resulted in the lower surface edge of the intermediate billet being easily scratched by the protective plate and the sharp roller ring of the roller during the rolling process, resulting in quality defects on the edge of the product, and finally being forced to perform edge trimming processing on the finished product, resulting in a vicious circle.

[0053] Please refer to Figure 2, showing a general cross-sectional view of a protective plate assembly of an edge roll mill according to an embodiment of the present invention; an edge roll roller 3 and an edge roll lower bearing seat 7 are provided on the outer side of a separate protective mechanism 4, an edge roll upper frame 1 is provided on the upper side of the separate protective mechanism 4, an edge roll upper bearing seat 2 is installed on the inner side of the edge roll upper frame 1, an edge roll lower frame 8 is connected to the outer side of the edge roll lower bearing seat 7, two frame rollers 6 are symmetrically provided on the upper side of the edge roll lower frame 8, and an intermediate billet 5 is provided on the frame roller 6; a frame roller 6 is provided at each of the inlet and outlet sides of the edge roll mill to guide the bite of the intermediate billet; in order to facilitate the replacement of the edge roll roller 3, there are gaps between the frame roller 6 and the roller ring of the edge roll roller 3, and between the separate protective mechanism 4 and the frame roller 6.

[0054] Please refer to Figure 3 The guide plate support 43 includes a support seat 431, one end of which is provided with two sixth pin holes 432, and the other end of the support seat 431 is provided with a seventh pin hole 433. The guide plate support 43 is provided to reduce the instantaneous impact of the plate head on the movable guide plate member 42 when the intermediate billet 5 acts on the pins connecting the two ends of the movable guide plate member 42 and the guide plate seat 421; when the intermediate billet 5 acts on the guide surface of the movable guide plate member 42, the guide plate support 43 decomposes the stress condition of the pin of the guide plate seat 421, and effectively decomposes the overturning moment borne by the guide plate seat 421; at the same time, the guide plate support 43 adopts a double hinge design, which can be freely drooped to achieve quick disassembly and assembly when the vertical roller 3 is quickly replaced.

[0055] Please refer to Figure 4 The movable guide plate member 42 includes a guide plate seat 421, and two fifth pin holes 423 are symmetrically provided at one end of the guide plate seat 421; the movable guide plate member 42 provides a protective movable guide plate structure, including the maximum processing range of the roller diameter and the roller ring, which satisfies the working surface width and height of the vertical roller in the whole life cycle to achieve the guiding and protective functions, the fifth pin hole 423 and the seventh pin hole 433 have the same inner diameter, and the guide plate seat 421 is provided with a guide angle at one end close to the fifth pin hole 423 to prevent the intermediate blank 5 from hitting the roller ring of the vertical roller 3, and two groups of four fourth pin holes 422 are symmetrically provided on the two side walls of the guide plate seat 421, and the movable guide plate member 42 is a disassembly component, which can reduce the gap between the frame roller 6 and the protective plate, and at the same time ensure the process accuracy, the movable guide plate member 42 can be replaced separately, and the maintenance cost is low, and the maintenance cost is reduced by about 95% compared with the existing replacement of the integral protective plate assembly;

[0056] The movable guide plate 42 is the main process accuracy ensuring part that is in direct contact with the intermediate billet 5, and also has the intermediate billet guiding function. According to the structural characteristics of the movable guide plate 42, when the intermediate billet 5 is normally rolled, when the plate head is bent downward, when it is assembled through the vertical roller 3, the plate head follows the small angle guide of the movable guide plate to guide the plate head of the intermediate billet 5 to move toward the vertical roller 3 to achieve normal rolling function; the upper surface of the guide plate seat 421 is designed as an integral surface, and contacts with the intermediate billet 5 to achieve a smooth transition without scratching the edge surface of the intermediate billet 5 product; the guide plate seat 421 extends from the width direction to The vertical roller side is increased by 25mm, which eliminates the excessive gap between the intermediate billet 5 and the vertical roller. The effect is obvious especially in the late stage of the use of the vertical roller, which effectively prevents the quality defects caused by the separated protection mechanism 4 cutting the edge of the product; the guide plate seat 421 is increased by 200mm in the guide length within the full stroke range of the vertical roller without affecting the interference of the bearing seat of the frame roller 6, which prevents the process accident of the intermediate billet 5 drilling into the guide plate seat 421 and the roller of the frame roller 6; through the separate design, the upper surface of the guide plate seat 421 can be directly replaced after wear, so as to maintain the function of process accuracy.

[0057] Please refer to Figure 5 The double-ear protection plate 41 includes a double-ear base 411. The double-ear protection plate 41 is the main force-bearing part for assembling and protecting the vertical roller 3. When the intermediate billet 5 acts on the separate protection mechanism 4, the force is transmitted to the vertical roller upper bearing seat 2, the vertical roller upper frame 1, the vertical roller lower bearing seat 7 and the vertical roller lower frame 8. Two groups of six screw holes 412 are symmetrically arranged on the double-ear base 411. The double-ear base 411 is fixedly connected to the vertical roller lower bearing seat 7 by high-strength bolts passing through the screw holes 412. Two groups of first pin holes 413, second pin holes 414 and third pin holes 415 are symmetrically arranged on the top of the double-ear base 411. The double-ear base 411 is mainly used to ensure the elevation foundation and precise positioning reliability of the component.

[0058] Two approximately L-shaped thin-walled variable-section plates are symmetrically arranged on the top of the double-ear base 411. Each group of first pin holes 413, second pin holes 414 and third pin holes 415 are evenly arranged on the thin-walled variable-section plates. The inner diameters of the first pin holes 413 and the fourth pin holes 422 are equal, and the inner diameters of the third pin holes 415 and the sixth pin holes 432 are equal, which facilitates snap-on connection.

[0059] Please refer to Figure 6The separate protection mechanism 4 includes a double-ear protection plate 41 and a positioning connecting member 44. The double-ear protection plate 41 is installed on the lower bearing seat 7 of the vertical roller, and the double-ear protection plate 41 is connected with a movable guide plate 42 and a guide plate support 43. Different from the protection plate assembly of the existing vertical roller mill, the separate protection mechanism 4 is designed to be separated. The separate protection mechanism 4 is composed of four mechanisms, namely, a double-ear protection plate 41, a movable guide plate 42, a guide plate support 43 and a positioning connecting member 44. While satisfying the requirements of controlling the elevation of the intermediate billet in rolling and assisting the vertical roller rolling, the separate protection mechanism 4 is convenient to disassemble. After completing the replacement of the vertical roller 3, the separate protection mechanism 4 can be conveniently reassembled, and the operation of the entire disassembly and assembly process is simple, and there is no need to weld or cut the small guide plate before and after each replacement of the vertical roller 3.

[0060] The positioning connecting member 44 includes a type 1 pin 441, a type 2 pin 442 and a type 3 pin 443. The type 1 pin 441 is clamped with the third pin hole 415 and the sixth pin hole 432, and the type 2 pin 442 is clamped with a group of fourth pin holes 422 and the first pin hole 413 to form a positioning mechanism; the type 3 pin 443 is clamped with the fifth pin hole 423 and the seventh pin hole 433 to form another positioning mechanism; the stress condition of the single positioning is reduced, the safety and reliability of the support base 431 is ensured, and the function of quick disassembly and assembly is played when the vertical roller is replaced.

[0061] Please refer to Figure 7 The method for quickly disassembling and assembling the protective plate assembly of the roller assembly includes the following steps: first prepare the equipment shutdown conditions: take out the intermediate blank processed in the vertical roller mill, and check the position and status of each structural component of the vertical roller mill; then close the hydraulic system valve, and manually remove the second type pin 442 and the third type pin 443 installed on the movable guide plate member 42; considering the quick and convenient disassembly and assembly, the fourth pin hole 422 and the fifth pin hole 423 are designed with a center of gravity offset distance, so that only the second type pin 442 and the third type pin 443 need to be removed during operation to make the guide plate seat 421 lose balance, and the guide plate seat 421 and the supporting card seat 431 can be manually slightly moved to hang naturally to achieve quick disassembly and assembly, and the comprehensive welding process after the alignment accuracy adjustment is no longer used, which meets the needs of quickly replacing the vertical rollers.

[0062] Hydraulically lift out the vertical roller universal joint connector, disengage the vertical roller transmission, use the C-hook to smoothly lift out the vertical roller 3, and then lift the replaced vertical roller 3 back in; then reassemble the vertical roller 3, and after the vertical roller 3 is assembled and lifted in place, pull the vertical roller back to the balanced position; finally, reassemble and seal the separate protection mechanism 4.

[0063] The reassembly and packaging operation of the separate protection mechanism 4 includes the following steps: first, lift the movable guide plate member 42, and re-pass the type-2 pin shaft 442 through the first pin hole 413 and a group of fourth pin holes 422 to complete the assembly between the guide plate seat 421 and the double-ear base 411; then lift the guide plate support member 43 away from the end of the double-ear protection plate member 41 to the position corresponding to the connection with the movable guide plate member 42, pass the type-3 pin shaft 443 through the fifth pin hole 423 and the seventh pin hole 433, and assemble the support base 431 and the guide plate seat 421; at this point, the assembly of the vertical roller separate protection mechanism 4 is completed, and the transmission shaft can be reinstalled, and the vertical roller can be calibrated and put into production; the disassembly and assembly of the pin shaft replaces the heavy welding and cutting labor, thereby improving the assembly quality and efficiency.

[0064] 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 make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vertical roller assembly protection plate assembly, characterized in that: The protective plate assembly comprises a separate protective mechanism (4), the outer side of which is provided with a vertical roller (3) and a vertical roller lower bearing seat (7), the separate protective mechanism (4) comprises a double-ear protective plate member (41) and a positioning connecting member (44), the double-ear protective plate member (41) is mounted on the vertical roller lower bearing seat (7), and the double-ear protective plate member (41) is connected to a movable guide plate member (42) and a guide plate support member (43); The guide plate support member (43) comprises a support base (431), one end of the support base (431) is provided with two sixth pin holes (432), and the other end of the support base (431) is provided with a seventh pin hole (433); The movable guide plate member (42) comprises a guide plate seat (421), one end of the guide plate seat (421) is symmetrically provided with two fifth pin holes (423), and the inner diameters of the fifth pin hole (423) and the seventh pin hole (433) are equal; An upper vertical roller frame (1) is arranged on the upper side of the separate protection mechanism (4), an upper vertical roller bearing seat (2) is installed on the inner side of the upper vertical roller frame (1), an outer side of the lower vertical roller bearing seat (7) is connected to a lower vertical roller frame (8), two frame rollers (6) are symmetrically arranged on the upper side of the lower vertical roller frame (8), and an intermediate blank (5) is arranged on the frame rollers (6); A guide angle is provided at one end of the guide plate seat (421) near the fifth pin hole (423), and two groups of four fourth pin holes (422) are symmetrically provided on both side walls of the guide plate seat (421); the double-ear protection plate (41) comprises a double-ear base (411), two groups of six screw holes (412) are symmetrically provided on the double-ear base (411), the double-ear base (411) is fixedly connected to the lower bearing seat (7) of the vertical roller by bolts passing through the screw holes (412), and two groups of first pin holes (413), second pin holes (414) and third pin holes (415) are symmetrically provided on the top of the double-ear base (411); Two approximately L-shaped thin-walled variable-section plates are symmetrically arranged on the top of the double-ear base (411), and each group of first pin holes (413), second pin holes (414) and third pin holes (415) are evenly arranged on the thin-walled variable-section plates; the first pin holes (413) and the fourth pin holes (422) have the same inner diameter, and the third pin holes (415) and the sixth pin holes (432) have the same inner diameter; The positioning connecting member (44) comprises a first type pin shaft (441), a second type pin shaft (442) and a third type pin shaft (443); the first type pin shaft (441) is clamped with a third pin hole (415) and a sixth pin hole (432); the second type pin shaft (442) is clamped with a group of fourth pin holes (422) and a first pin hole (413); and the third type pin shaft (443) is clamped with a fifth pin hole (423) and a seventh pin hole (433).

2. A method for quickly disassembling and assembling a roller assembly protection plate assembly, characterized in that: The method for disassembling and assembling a vertical roller assembly protection plate assembly according to claim 1 comprises the following steps: Prepare the equipment shutdown conditions and close the hydraulic system valve, and manually remove the second type pin (442) and the third type pin (443) installed on the movable guide plate (42); The vertical roller universal joint connecting body is hydraulically lifted out, the vertical roller transmission is disengaged, the vertical roller (3) is smoothly lifted out with a C-type hook, and the new vertical roller (3) is lifted in again; Reinstall the vertical roller (3), after the vertical roller (3) is assembled and hoisted into place, pull the vertical roller back to a balanced position; The separate protection mechanism (4) is reassembled and packaged.

3. A method for quickly disassembling and assembling a roller assembly protection plate assembly according to claim 2, characterized in that: The operation of reassembling and packaging the separated protection mechanism (4) comprises the following steps: Lift the movable guide plate member (42), and re-pass the second type pin shaft (442) through the first pin hole (413) and a set of fourth pin holes (422), thereby completing the assembly between the guide plate seat (421) and the double-ear base (411); The guide plate support member (43) is lifted up to a position corresponding to the movable guide plate member (42) at one end opposite to the double-ear protection plate member (41), and the three-type pin shaft (443) is passed through the fifth pin hole (423) and the seventh pin hole (433) to perform the clamping assembly between the support clamping seat (431) and the guide plate seat (421).

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