High-temperature protection device for a tension leveler and tension leveler

Abstract

The present application relates to the field of straightening and leveling machine, in particular to a high-temperature protection device for straightening and leveling machine and the straightening and leveling machine, which comprises a roller shaft protection mechanism and a roll gap protection mechanism; the roller shaft protection mechanism comprises fixed heat protection arranged at both ends of corresponding roller shaft; the fixed heat protection comprises two protection discs distributed at both ends of the roller shaft; the roll gap protection mechanism comprises a heat-resistant soft curtain structure; the heat-resistant soft curtain structure comprises a high-temperature-resistant soft curtain; the high-temperature-resistant soft curtain is connected to the side of the straightening and leveling machine; through the arrangement of the roller shaft protection mechanism, the roller shaft bearing seat mechanism can be isolated, the influence of the red blank heat radiation on the service life of the bearing seat is avoided or reduced, and meanwhile, the arrangement of the roll gap protection mechanism has the essential purpose of playing a heat insulation role, the red blank heat radiation is avoided from being radiated to the surrounding parts of the roller shaft through the roller shaft gap, and thus the influence of the red blank heat radiation on the service life of the surrounding parts of the roller shaft of the straightening and leveling machine is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of straightening and leveling machine, in particular to a high-temperature protection device for straightening and leveling machine. BACKGROUND

[0002] With the rapid development of metallurgical industry, the steel production is continuously improved, and the competition of steel products is increasingly fierce.

[0003] In the increasingly fierce competition, large-section cast slab with high added value gradually becomes the new favorite in the market.

[0004] However, in the production of large-section cast slab, equipment failure occurs frequently, which seriously restricts the production capacity and thus seriously affects the economic benefits.

[0005] The reason is that, in addition to the service life of conventional electrical and hydraulic components, the radiant heat of the cast slab cannot be effectively protected in most cases; because the general straightening and leveling machine does not produce only one section, especially the straightening and leveling machine for large sections produces more sections; therefore, the required heat protection type must be able to adapt to online adjustment; the ordinary fixed type heat protection cannot meet the requirements.

[0006] For the straightening and leveling machine, the upper and lower rollers and the corresponding bearing seats have a cooling water system for protection, the cooling water circulation takes away the heat, maintains the strength and stiffness of the upper and lower rollers, and the temperature in the bearing seat is moderate, so as not to carbonize the lubricating grease; for example, the cooling water path of the patent 201420475942.0-Common column integrated small roller gap dynamic pressure straightening and leveling machine is disclosed.

[0007] However, the equipment in the roller gap radiation area of the straightening and leveling machine, such as the upper and lower roller reducers, oil pipes and cables, cannot be effectively protected due to limited space and dynamic adjustment, resulting in frequent failures and forced interruption of production, which causes huge economic losses.

[0008] The high-frequency failures caused by the imperfect dynamic heat protection mainly include: carbonization of the sealing ring in each joint of the hydraulic system, leading to hydraulic oil leakage; high incidence of phenomena such as circuit breaking, short circuit and loss of control signal caused by cable burning; deterioration of lubricating oil in the reducer due to baking, leading to poor lubrication; and many mechanical jamming problems caused by thermal expansion or thermal deformation of high-temperature mechanical parts.

[0009] Therefore, in order to improve or solve at least one of the above problems, it is necessary to optimize the design of the heat protection device of the existing straightening and leveling machine. SUMMARY

[0010] The purpose of the present application is to provide a flexible heat protection device for straightening and leveling machine.

[0011] In order to achieve the above object, the technical scheme adopted by the present application is:

[0012] A high-temperature protection device for a tension leveler, comprising a roller shaft protection mechanism and a roll gap protection mechanism;

[0013] The roller shaft protection mechanism comprises fixed thermal protection arranged at both ends of the corresponding roller shaft;

[0014] The fixed thermal protection comprises two protection discs distributed at both ends of the roller shaft;

[0015] The roll gap protection mechanism comprises a heat-resistant soft curtain structure;

[0016] The heat-resistant soft curtain structure comprises a high-temperature-resistant soft curtain; the high-temperature-resistant soft curtain is connected to the side of the tension leveler.

[0017] The roll gap protection mechanism comprises two symmetrically distributed heat-resistant soft curtain structures; the two protection discs in each fixed thermal protection are symmetrically distributed; the heat-resistant soft curtain structure is connected to the corresponding protection disc.

[0018] The heat-resistant soft curtain structure further comprises a counterweight arranged on the high-temperature-resistant soft curtain; the high-temperature-resistant soft curtain is provided with a plurality of counterweights, and the plurality of counterweights are distributed in parallel at intervals on the high-temperature-resistant soft curtain.

[0019] The protection disc comprises a steel plate base, and the steel plate base is filled with refractory material; the high-temperature-resistant soft curtain comprises a ceramic refractory fiber cotton layer; the ceramic refractory fiber cotton layer is provided with a ceramic refractory fiber cloth layer.

[0020] The high-temperature-resistant soft curtain is horizontally projected at the connection position of the tension leveler, and the two ends of the high-temperature-resistant soft curtain are distributed in a staggered manner.

[0021] The high-temperature-resistant soft curtain is connected to the corresponding protection disc through a mounting portion; the mounting portion comprises a mounting angle steel connected to the end of the high-temperature-resistant soft curtain, and the mounting angle steel is connected to the corresponding protection disc through mounting bolts.

[0022] The high-temperature-resistant soft curtain is connected to the corresponding protection disc through an assembly portion; the assembly portion comprises a fixing member arranged on the high-temperature-resistant soft curtain; and the high-temperature-resistant soft curtain is connected to the corresponding protection disc through the fixing member.

[0023] The protection disc comprises a transverse disc and a longitudinal disc, the transverse disc is connected to the longitudinal disc through an inclined disc, the transverse disc is arranged in a horizontal direction, the longitudinal disc is arranged in a longitudinal direction, and the inclined disc is arranged in an inclined manner.

[0024] A kind of straightening and leveling machine, including rack, be provided with upper roller shaft and lower roller shaft on the rack, high temperature protection device is provided between the upper roller shaft and lower roller shaft;The upper roller shaft and lower roller shaft are connected with one roller shaft protection mechanism respectively;The roller shaft protection mechanism on the upper roller shaft and the roller shaft protection mechanism on the lower roller shaft are provided with heat-resistant soft curtain structure between them.

[0025] The connecting position of the roller shaft protection mechanism on the upper roller shaft and the roller shaft protection mechanism on the lower roller shaft with the same heat-resistant soft curtain structure is horizontally projected and is distributed in staggered position;The connecting position of the roller shaft protection mechanism on the lower roller shaft and heat-resistant soft curtain structure is closer to the inner side of rack.

[0026] The advantage of the present application is that:

[0027] The application discloses a high-temperature protection device for a straightening and leveling machine and the straightening and leveling machine.

[0028] The present application can isolate the roller bearing seat mechanism by the setting of the roller shaft protection mechanism, avoid or reduce the influence of red billet heat radiation on the service life of the bearing seat, and the essential purpose of the setting of the roll gap protection mechanism is to play a heat insulation role, so as to avoid the red billet heat radiation from being radiated to the surrounding parts of the roller through the roller gap, thereby reducing the influence of the red billet heat radiation on the service life of the surrounding parts of the straightening and leveling machine.

[0029] Meanwhile, the main body of the roll gap protection mechanism of the present application is a high-temperature-resistant soft curtain, which has good ductility and facilitates the change of the interval between the upper and lower rollers. DETAILED DESCRIPTION

[0030] The content expressed by each figure in the specification of the present application and the marks in the figure are briefly described as follows:

[0031] Figure 1 It is a structural schematic view of the present application.

[0032] Figure 2 It is Figure 1 A local enlarged view of region A.

[0033] Figure 3 It is Figure 1 A local enlarged view of region B.

[0034] Figure 4 It is a structural schematic view of the assembly block of the present application.

[0035] Figure 5 It is a structural schematic view of the high-temperature-resistant soft curtain in the present application.

[0036] The marks in the above figure are as follows:

[0037] 1, upper roller shaft, 2, lower roller shaft, 3, red billet, 4, roll gap protection mechanism, 5, roller shaft protection mechanism, 6, mounting part, 7, assembly part. DETAILED DESCRIPTION

[0038] The specific implementation of the present invention will be further explained in detail below by describing the best embodiment with reference to the accompanying drawings.

[0039] It should be noted here that the red billet mentioned below and in the above statements is a state of the cast billet and does not have any additional limiting effect.

[0040] A high-temperature protection device for a straightening machine includes a roller protection mechanism 5 and a roller gap protection mechanism 4. The present invention can isolate the roller bearing seat mechanism through the setting of the roller protection mechanism 5, thereby avoiding or reducing the influence of the red blank heat radiation on the service life of the bearing seat. At the same time, the setting of the roller gap protection mechanism 4 has the essential purpose of playing a heat insulation role, avoiding the heat radiation of the red blank from radiating to the peripheral components of the roller through the roller gap, thereby reducing the influence of the red blank heat radiation on the service life of the peripheral components of the straightening machine roller.

[0041] The high temperature protection device disclosed in the present invention is mainly arranged on the frame of the straightening machine. Its essential purpose is to isolate the red blank entering the straightening machine to prevent the heat radiation of the red blank from affecting the service life of the peripheral components of the straightening machine.

[0042] Specifically, the high-temperature protection device for the straightening machine disclosed in the present invention mainly includes a roller protection mechanism 5 and a roller gap protection mechanism 4; in the present invention, the roller protection mechanism 5 is mainly used for heat insulation protection of the roller end bearing seat, and the roller gap protection mechanism 4 is mainly used to isolate the gap between the rollers, thereby reducing the heat radiation damage of the red blank to the reducer and other components.

[0043] Furthermore, the roller protection mechanism 5 in the present invention includes fixed thermal protection 501 arranged at both ends of the corresponding roller; the fixed thermal protection 501 mainly acts as an isolation member. In subsequent use, the fixed thermal protection 501 is arranged at the end of the roller, thereby isolating the bearing seat mechanism to prevent the red blank heat radiation from affecting the service life of the bearing seat.

[0044] At the same time, the fixed thermal protection 501 in the present invention includes two protective plates 51 spaced apart and distributed at both ends of the roller shaft; the two protective plates 51 are respectively arranged at both ends of the corresponding roller shaft, thereby isolating the bearing seat and ultimately achieving separate protection of the bearing seat.

[0045] At the same time, the roller gap protection mechanism 4 in the present invention includes a heat-resistant soft curtain structure 401; the heat-resistant soft curtain structure 401 essentially acts as an isolation member to facilitate isolation and protection of the side surfaces of the roller gap.

[0046] In addition, the heat-resistant soft curtain structure 401 in the application comprises a high-temperature-resistant soft curtain 41; the high-temperature-resistant soft curtain 41 is connected to the side of the stretch leveler; the high-temperature-resistant soft curtain 41 has good ductility while achieving the heat insulation effect, and is convenient for subsequent folding and stretching movement, avoiding movement interference between the upper roller shaft 1 and the lower roller shaft 2 when they move relative to each other.

[0047] Further, the roll gap protection mechanism 4 in the application comprises two symmetrical heat-resistant soft curtain structures 401; the two protection discs 51 in each fixed heat protection 501 are arranged in a symmetrical manner; the heat-resistant soft curtain structure 401 is connected to the corresponding protection disc 51; the two heat-resistant soft curtain structures 401 can isolate and protect the roll gap between the two ends of the roller shaft, and the two protection discs 51 are arranged at the two ends of the same roller shaft, so as to isolate and protect the bearing seat at the two ends of the roller shaft.

[0048] Further, the heat-resistant soft curtain structure 401 in the application further comprises a counterweight 42 arranged on the high-temperature-resistant soft curtain 41; the counterweight 42 has a good counterweight effect, which facilitates the provision of downward gravity to the high-temperature-resistant soft curtain 41, facilitates the folding of the high-temperature-resistant soft curtain 41 when the upper roller shaft 1 moves downward, and facilitates the natural hanging of the high-temperature-resistant soft curtain 41 during subsequent use.

[0049] Such arrangement not only facilitates the subsequent folding of the high-temperature-resistant soft curtain 41, but also provides downward gravity for the high-temperature-resistant soft curtain 41, and ensures the stable spacing between the high-temperature-resistant soft curtain 41 and the red body.

[0050] In addition, the counterweight 42 in the application can be fixedly connected to the high-temperature-resistant soft curtain 41, and the connection mode can be various as long as the fixed connection between the two can be achieved.

[0051] Of course, the counterweight 42 disclosed in the application can also be connected to the high-temperature-resistant soft curtain 41 in a detachable manner; for example, a connecting ring sleeve 413 can be arranged on the high-temperature-resistant soft curtain 41, and the counterweight 42 is inserted into the connecting ring sleeve 413; such arrangement facilitates the installation and connection of the counterweight 42 on the high-temperature-resistant soft curtain 41, and also facilitates the subsequent replacement operation; in addition, the connecting ring sleeve 413 in the application can be designed to have a certain elastic structure; such arrangement makes the connecting sleeve and the counterweight 42 have an interference fit, which can better ensure the stability of the connection between the connecting ring sleeve 413 and the counterweight 42.

[0052] The connecting ring 413 in the application can also be made of the same material as the high-temperature-resistant soft curtain 41.

[0053] Meanwhile, the counterweight 42 in the application can be arranged on the inner side or the outer side of the high-temperature-resistant soft curtain 41, that is, the counterweight 42 can be arranged on the side close to the red body 3 or on the side far away from the red body 3 according to the requirement.

[0054] When the counterweight 42 is arranged on the side close to the red body 3 of the high-temperature-resistant soft curtain 41, the arrangement can help realize the winding and unwinding of the high-temperature-resistant soft curtain 41, and when the high-temperature-resistant soft curtain 41 swings horizontally due to external force, the counterweight 42 on the inner side can act as a spacer to avoid the direct contact between the high-temperature-resistant soft curtain 41 and the red body 3.

[0055] When the counterweight 42 is arranged on the side far away from the red body 3 of the high-temperature-resistant soft curtain 41, the arrangement can ensure the counterweight on the outer side of the high-temperature-resistant soft curtain 41, so that the high-temperature-resistant soft curtain 41 can be stacked on the outer side of the mounting angle steel 61 after winding and unwinding, thereby avoiding the contact between the high-temperature-resistant soft curtain 41 and the red body 3.

[0056] Further, the protective disc 51 in the application comprises a steel plate base filled with refractory material; the steel plate base is the main structure of the protective disc 51, which ensures the overall structural strength of the protective disc 51, and the steel plate base in the application is filled with refractory material; the arrangement of the refractory material can play a good heat insulation role and also ensure the service life of the protective disc 51.

[0057] Meanwhile, the high-temperature-resistant soft curtain 41 in the application comprises a ceramic refractory fiber cotton layer 411, and a ceramic refractory fiber cloth layer 412 is arranged on the ceramic refractory fiber cotton layer 411; the high-temperature-resistant soft curtain 41 is usually sewn with a ceramic refractory fiber cloth with a temperature resistance of 1250℃ or above as a surface layer and ceramic refractory fiber cotton as a lining, which is used to resist the radiant heat of the red body 3.

[0058] Further, the high-temperature-resistant soft curtain 41 in the application is horizontally projected at the connecting position of the drawing and straightening machine, and the projection is staggered; the staggered distribution is mainly used to facilitate the subsequent winding and unwinding of the high-temperature-resistant soft curtain 41 and avoid the concentrated stacking of the high-temperature-resistant soft curtain 41 after winding and unwinding.

[0059] The dislocation distribution mode here has multiple modes, in order to have better use effect, the preferred mode of the present application is that the horizontal distance between the upper connecting position of the high-temperature-resistant soft curtain 41 and the upper roller and the red blank 3 to be processed is greater than the horizontal distance between the lower connecting position of the high-temperature-resistant soft curtain 41 and the red blank 3 to be processed; such a setting makes the high-temperature-resistant soft curtain 41 retract and extend when the subsequent upper roller is lowered, and the retracted and extended high-temperature-resistant soft curtain 41 is stacked on the side of the mounting angle steel 61 away from the red blank 3, thereby avoiding the influence of the red blank 3 on the retracted and extended high-temperature-resistant soft curtain 41.

[0060] Further, in the present application, the high-temperature-resistant soft curtain 41 is connected with the corresponding protective disc 51 through the mounting portion 6; the mounting portion 6 facilitates the connection between the high-temperature-resistant soft curtain 41 and the corresponding protective disc 51, and in the present application, the mounting portion 6 includes a mounting angle steel 61 connected to the end of the high-temperature-resistant soft curtain 41, and the mounting angle steel 61 is connected to the corresponding protective disc 51 through mounting bolts; the vertical section of the mounting angle steel 61 is L-shaped, mainly including a longitudinal plate and a transverse plate, the longitudinal plate is arranged along the longitudinal direction, and the transverse plate is arranged along the transverse direction; one end of the transverse plate is connected to the longitudinal plate, and the other end is arranged away from the red blank 3; in addition to having a connecting effect, the longitudinal plate in the mounting angle steel 61 also plays a role of transverse limiting, so that the high-temperature-resistant soft curtain 41 in the retracted and extended state is prevented from being close to the red blank 3 to be processed during subsequent use.

[0061] Meanwhile, in order to ensure the stability of the connection, in the present application, the mounting angle steel 61 is connected with the corresponding protective disc 51 through a mounting bottom plate 62, based on such a setting, not only can the structural strength of the connecting position of the mounting angle steel 61 be ensured, but also a good support frame height effect can be achieved; which facilitates limiting the transverse position of the high-temperature-resistant soft curtain 41.

[0062] Further, in the present application, the high-temperature-resistant soft curtain 41 is connected with the corresponding protective disc 51 through the mounting portion 7, and the mounting portion 7 includes a fixing piece arranged on the high-temperature-resistant soft curtain 41; the high-temperature-resistant soft curtain 41 is connected to the corresponding protective disc 51 through the fixing piece; the present application facilitates the connection of the high-temperature-resistant soft curtain 41 on the corresponding protective disc 51 through the setting of the mounting portion 7, and in addition, the fixing piece can be a fixed block, a fixed hook or a fixed round steel 71 and the like.

[0063] In order to conveniently fix the connection of the round steel 71, the fixing groove 74 is arranged on the protective disc 51 in the application, and the assembly block 72 is arranged in the fixing groove 74; the assembly block 72 is provided with the assembly embedding groove 721; the assembly block 72 is provided with the plug-in plate 73, and the fixed round steel 71 is installed in the assembly embedding groove 721 in subsequent installation and use; the assembly block 72 is plugged into the fixing groove 74 through the plug-in plate 73, and then the plug-in plate 73 is fixed on the corresponding protective disc 51 by fixing bolts or fixing screws, so as to realize the connection between the high-temperature-resistant soft curtain 41 and the corresponding protective disc 51.

[0064] Based on the above design, it can be known that the end of the high-temperature-resistant soft curtain 41 disclosed in the application can be connected with the corresponding protective disc 51 through the assembly part 7 or the mounting part 6; therefore, in actual implementation, the two ends of the high-temperature-resistant soft curtain 41 can be connected with the corresponding protective disc 51 by selecting the assembly part 7 or the mounting part 6 as needed.

[0065] Further, the protective disc 51 in the application includes the transverse disc 511 and the longitudinal disc 513, the transverse disc 511 is connected with the longitudinal disc 513 through the inclined disc 512; the transverse disc 511 is arranged along the horizontal direction; the longitudinal disc 513 is arranged along the longitudinal direction; the inclined disc 512 is arranged obliquely; based on such a setting, the actual arrangement and placement of the protective disc 51 are facilitated, the inclined disc 512 arranged obliquely has a good material guiding effect, and the accumulation of residues on the lower protective disc 51 can be well avoided; the transverse disc 511 serves as a good connecting piece, facilitating the connection between the high-temperature-resistant soft curtain and the high-temperature-resistant soft pad, and the longitudinal disc serves as a good isolation and protection piece, well isolating the bearing seat mechanism from the roller shaft body, thereby reducing the influence of the radiation heat of the red body 3 on the service life of the bearing seat.

[0066] A straightening and leveling machine includes a rack, the rack is provided with an upper roller shaft 1 and a lower roller shaft 2, the high-temperature protection device is arranged between the upper roller shaft 1 and the lower roller shaft 2; the upper roller shaft 1 and the lower roller shaft 2 are respectively connected with a roller shaft protection mechanism 5; the roller shaft protection mechanism 5 on the upper roller shaft 1 and the roller shaft protection mechanism 5 on the lower roller shaft 2 are provided with a heat-resistant soft curtain structure 401; based on the arrangement of the roller shaft protection mechanism 5, the bearing seat protection of the upper roller shaft 1 and the lower roller shaft 2 can be realized, and the arrangement of the heat-resistant soft curtain structure 401 can avoid that the surrounding parts of the roll gap receive a large amount of heat radiation.

[0067] Meanwhile, the roller protection mechanism 5 on the upper roller shaft 1 and the roller protection mechanism 5 on the lower roller shaft 2 are horizontally projected and staggered with the connecting position of the same heat-resistant soft curtain structure 401; the connecting position of the roller protection mechanism 5 on the lower roller shaft 2 and the heat-resistant soft curtain structure 401 is closer to the inner side of the rack; based on the arrangement, the subsequent heat-resistant soft curtain 41 is conveniently retracted and extended, and the heat-resistant soft curtain 41 after being retracted and extended is avoided from being concentrated and stacked; meanwhile, when the upper roller shaft 1 is lowered, the heat-resistant soft curtain 41 is retracted and extended, and the heat-resistant soft curtain 41 after being retracted and extended is stacked on the side away from the red billet 3 of the mounting angle steel 61, so that the influence of the red billet 3 on the heat-resistant soft curtain 41 after being retracted and extended is avoided; and thus the service life of the heat-resistant soft curtain 41 can be increased.

[0068] Specifically,

[0069] The application discloses a high-temperature protection device and a straightening and leveling machine for the high-temperature protection device.

[0070] For the upper and lower roller bearings, the fixed heat protection 501 is adopted; and for the roller gap heat radiation area between the upper and lower rollers, the heat-resistant soft curtain 41 is adopted.

[0071] The protection method of the fixed heat protection 501 + soft curtain heat protection can completely meet the protection requirements of the equipment during the production of the large-section red billet.

[0072] The application is equivalent to seeking to solve the problem of radiation heat protection in a flexible system.

[0073] The high-temperature protection device mainly comprises a roller gap protection mechanism 4 and a roller shaft protection mechanism 5.

[0074] The roller gap protection mechanism 4 mainly comprises a fixed round steel 71, a counterweight round steel, a heat-resistant soft curtain 41 and a mounting angle steel 61.

[0075] The roller shaft protection mechanism 5 mainly comprises a fixed heat protection 501 arranged at the end of the upper roller shaft 1 or the lower roller shaft 2.

[0076] In the application, the fixed heat protection 501 of the lower roller shaft 2 is fixed with the straightening and leveling machine rack. The fixed heat protection 501 is composed of a steel plate chassis filled with refractory material, which is used to shield the bearing seat from direct heat radiation of the red billet 3. Under the cooperation of the bearing seat cooling water system, the bearing seat maintains a relatively low temperature state, avoiding carbonization of the bearing grease due to high temperature baking and losing lubrication effect.

[0077] The fixed heat protection 501 is a stainless steel plate chassis, which also becomes the basis for fixing the lower end of the heat-resistant soft curtain.

[0078] The appropriate position of the steel plate chassis is welded with the mounting plate 62; threaded holes are provided on the steel plate chassis to facilitate the fixation of the heat-resistant soft curtain 41.

[0079] Meanwhile, the fixed heat protection 501 of the upper roller shaft 1 is adjusted with the extension and retraction of the oil cylinder of the straightening machine; the fixed heat protection 501 is also composed of a stainless steel plate chassis filled with refractory material, which is used to protect the bearing seat of the upper roller from the high-temperature heat radiation of the red billet 3.

[0080] The fixed heat protection 501 is a stainless steel plate chassis, which also becomes the basis for fixing the lower end of the heat-resistant soft curtain.

[0081] In addition, the heat-resistant soft curtain 41 in the present application is usually made of ceramic refractory fiber cloth with a temperature resistance of 1250°C or above as the surface layer and ceramic refractory fiber cotton as the lining, which is sufficient to resist the radiant heat of the red billet 3.

[0082] The distance between the upper end of the heat-resistant soft curtain 41 and the longitudinal symmetry plane of the red billet 3 of the straightening machine is far, and the distance between the lower end and the symmetry plane is relatively close, but not so close that the red billet 3 and the soft curtain are in contact and are rubbed.

[0083] A number of counterweight round steels are arranged on the side of the heat-resistant soft curtain 41 away from the red billet 3, so that when the upper roller is lowered to the limit position, the soft curtain can still be kept from being in contact with the red billet 3 and being damaged.

[0084] Due to the heat-resistant properties of the heat-resistant soft curtain 41, it can still maintain its original shape at high temperatures without wrinkling and shrinking, so under high-temperature radiation, it can still maximize the shielding of the red billet 3 from the heat radiation of the straightening machine accessories, so that each accessory can work at a relatively suitable temperature for a long time, thereby maximizing the stable operation of the large-section red billet straightening machine.

[0085] After the implementation of the present application, the situation that the large-section straightening machine cannot adapt to the production of large-section red billets has been changed.

[0086] During large-section production, the temperature rise of equipment in the roller gap radiation area of the straightening machine (such as the motor, speed reducer, cable drag chain, hydraulic pipeline, etc.) can be controlled within 30°C. The mechanical, electrical, hydraulic, lubrication and other types of failures caused by high-temperature heat radiation have been greatly reduced, thereby clearing the obstacles for the production of large-section red billets.

[0087] Specific steps:

[0088] I. Design the size and structure of the protective soft curtain;

[0089] II. Please the professional manufacturer to make high-temperature-resistant soft curtain 41. At the same time, arrange the corresponding mechanical processing manufacturers to manufacture the corresponding fixing parts.

[0090] III. According to the design drawing, install the protective soft curtain. Single body debugging.

[0091] IV. On-line debugging, effect tracking, improvement of deficiencies, until it can meet the production requirements of more than three pouring times, and it is considered to be a successful test.

[0092] V. Gradually promote to all stretch levelers, summarize and improve the high-temperature-resistant protection of each position.

[0093] The present application utilizes the principle of evolutionary route, evolves from a multi-joint system to a flexible system, solves the problems of heat protection leaks and mechanical jamming of the original system; the present application utilizes the principle of object field, skillfully uses high-temperature-resistant flexible ceramic fiber material to replace relatively rigid steel material, greatly improves the reliability of the heat protection of the stretch leveler equipment, fundamentally eliminates the sources of most types of equipment failures, and realizes the stable production of the large-section stretch leveler; the implementation of the present application realizes the qualitative change from being unable to produce to being able to stably produce the large-section red body, and has obvious social benefits. In the case of increasingly fierce market competition, the marginal benefit of the large-section red body has a very obvious competitive advantage over the ordinary-section red body.

[0094] The implementation of the present application, before implementing the high-temperature-resistant soft curtain 41 heat protection, the monthly failure handling time for producing large-section red body is about 20 hours, the water, electricity, wind and gas production consumption loss is 2 million yuan per hour, and the economic benefits per year can be 20x2x12=480 million yuan.

[0095] Obviously, the specific implementation of the present application is not limited by the above-mentioned manner, as long as various non-essential improvements are made by adopting the method concept and technical scheme of the present application, they are within the protection scope of the present application.

Claims

1. A high temperature protection device for a tension leveller, characterised in that, Including roller protection mechanism and roller gap protection mechanism; The roller protection mechanism includes fixed thermal protection provided at both ends of the corresponding roller; The fixed thermal protection comprises two protection plates spaced apart and distributed at both ends of the roller shaft; The roller gap protection mechanism includes a heat-resistant soft curtain structure; The heat-resistant soft curtain structure includes a high-temperature resistant soft curtain; the high-temperature resistant soft curtain is connected to the side of the tensioning and straightening machine; The roller gap protection mechanism includes two symmetrically distributed heat-resistant soft curtain structures; the two protection disks in each fixed heat protection are relatively symmetrically distributed; the heat-resistant soft curtain structures are connected to the corresponding protection disks.

2. The high temperature protection device for a tension leveling machine according to claim 1, characterized in that, The heat-resistant soft curtain structure further includes a counterweight block arranged on the high-temperature resistant soft curtain; a plurality of counterweight blocks are provided on the high-temperature resistant soft curtain, and the plurality of counterweight blocks are distributed in parallel at intervals on the high-temperature resistant soft curtain.

3. The high temperature protection device for a tension leveling machine according to claim 1, characterized in that, The protective plate includes a steel plate chassis filled with refractory material; the high-temperature resistant soft curtain includes a ceramic refractory fiber cotton layer; a ceramic refractory fiber cloth layer is provided on the ceramic refractory fiber cotton layer.

4. The high temperature protection device for a tension and straitening machine according to claim 1, characterized in that, The horizontal projections of the two ends of the high-temperature resistant soft curtain at the connection positions of the tensioning and straightening machine are staggered.

5. The high temperature protection device for a tension and straitening machine according to claim 1, characterized in that, The high temperature resistant soft curtain is connected to the corresponding protective plate through a mounting portion; the mounting portion includes a mounting angle steel connected to the end of the high temperature resistant soft curtain, and the mounting angle steel is connected to the corresponding protective plate through a mounting bolt.

6. The high temperature protection device for a tension and straitening machine according to claim 1, characterized in that, The high temperature resistant soft curtain is connected to the corresponding protective plate through an assembly part, and the assembly part includes a fixing piece arranged on the high temperature resistant soft curtain; the high temperature resistant soft curtain is connected to the corresponding protective plate through the fixing piece.

7. The high temperature protection device for a pull-straightening machine according to claim 1 or 5, characterized in that, The protective plate includes a transverse plate and a longitudinal plate, wherein the transverse plate is connected to the longitudinal plate via an inclined plate; the transverse plate is arranged in a horizontal direction; the longitudinal plate is arranged in a longitudinal direction; and the inclined plate is arranged in an inclined manner.

8. A puller-straightener characterized by, It includes a frame, on which an upper roller and a lower roller are provided, and a high-temperature protection device for a straightening machine as described in any one of claims 1 to 7 is provided between the upper roller and the lower roller; the upper roller and the lower roller are respectively connected to a roller protection mechanism; a heat-resistant soft curtain structure is provided between the roller protection mechanism on the upper roller and the roller protection mechanism on the lower roller.

9. A puller-straightener according to claim 8, characterized in that The horizontal projections of the connection positions of the roller protection mechanism on the upper roller and the roller protection mechanism on the lower roller with the same heat-resistant soft curtain structure are staggered; the connection position of the roller protection mechanism on the lower roller with the heat-resistant soft curtain structure is closer to the inner side of the frame.

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