Steel rolling cooling bed output roller way and roller way acceleration roller machining process

Abstract

The invention discloses a steel rolling cooling bed output roller way and a roller way acceleration roller machining process, the steel rolling cooling bed output roller way comprises a rack, and further comprises an acceleration roller, an arrangement transmission mechanism and a picking-out mechanism which are arranged on the rack, a friction ring on the acceleration roller is detachable, and the arrangement transmission mechanism for arranging and transmitting materials is lapped on the rack; the transmission direction of the arrangement transmission mechanism is parallel to the axial direction of the acceleration roller, materials are conveyed to the acceleration roller through the arrangement transmission mechanism, and the picking-out mechanism for picking out the bent unqualified materials is arranged on the machine frame at the front end of the acceleration roller. The device has the advantages that the detachable friction ring is utilized, the acceleration roller is made into two detachable parts, the friction ring is directly replaced during replacement, a base body is reserved, the cost is saved, the steel is arranged through the arrangement transmission mechanism, the conveyed steel is accelerated through the acceleration roller, the conveyed steel can be screened through the picking-out mechanism, and the device is high in practicability and high in practicability. And the bent steel is picked out under the action of the acceleration roller, so that the problems of steel stacking and steel disorder are effectively prevented.

Description

Technical Field

[0001] The invention specifically relates to a processing technology for an output roller table and an accelerating roller of a steel rolling cooling bed. Background Art

[0002] Rollers are often used in the transmission process of materials. They mainly drive the material transmission through their own rotation and surface friction. Therefore, the surface of the roller needs to have a certain friction and wear resistance. After long-term use, the surface of the roller needs to be replaced due to wear. The existing rollers are one-piece, and the entire roller needs to be replaced when replaced, which has a high cost. In the hot-rolled bar production workshop, there are also rollers for accelerating steel. The steel cut by the multiple-length shears is moved to the acceleration rollers via the skirt plate, and then transported to the cooling bed for cooling by the acceleration rollers. However, the different action parameters of the multiple-length shears, equipment conditions, and skirt plate hydraulic system parameters will cause the steel to bend. Some steels are severely bent and will be blocked on the transmission line of the acceleration roller, resulting in the inability to transmit subsequent steel, causing steel piling accidents. The existing device cannot automatically pick out the bent steel and can only be picked out manually, or the transmission line of the acceleration roller can be widened so that the bent steel can be transmitted. However, the bent steel transmitted will still cause disorderly steel on the cooling bed, which is inconvenient to use.

[0003] In Chinese patent: 201410319008.4, the name is: Improved acceleration roller, which records that it includes a cylindrical roller body, a rolling ring arranged on the outside of the cylindrical roller body and a connecting ring on the inside, the connecting ring is movably connected to the rotating shaft of the motor, and is characterized in that the rolling ring is provided with a welding groove structure, a tungsten carbide roller ring is sleeved in the welding groove, a retaining edge structure is provided on one side of the welding groove, the rolling radius of the retaining edge structure is 0.3-0.5mm lower than the rolling radius of the tungsten carbide roller ring, a spacer structure is provided on the other side of the welding groove, and the spacer structure is sleeved on the outside of the tungsten carbide roller ring; the rolling radius of the tungsten carbide roller ring is the same as the rolling radius of the spacer structure; the thickness of the tungsten carbide roller ring is the same as the thickness of the rolling ring.

[0004] Such as patent: 201410319008.4 Figure 1 As shown, this patent mainly utilizes a spacer ring structure and a retaining edge structure to weld the tungsten carbide roller ring into the welding groove on the rolling ring, so that the tungsten carbide roller ring and the rolling ring are stably connected together to form a whole. This structure still tends to make the roller into an integral structure, but it is fixed more tightly in 201410319008.4. However, when the tungsten carbide roller ring needs to be replaced after long-term use, the entire roller still needs to be replaced. The tungsten carbide roller ring cannot be replaced separately, and the use cost is high.

[0005] In Chinese Patent: 202010748117.3, the name is: Bar cooling bed output roller guard plate and cooling bed output roller, which records that it includes a conveying panel for receiving and transmitting bars dumped from the side of the conveying panel onto the conveying panel; a support beam is arranged at the bottom of the conveying panel for separating the conveying panel from the ground; and a first guide plate is located on the side of the conveying panel; the first guide plate has a first end and a second end; the first end is connected to the side wall of the conveying panel; the second end is a free end, and the free end extends downward and abuts against the ground; the conveying panel has a first end wall and an opposite second end wall, and the first end wall and the second end wall are both connected to a second guide plate; the second guide plate extends 200 to 40 toward the ground. 0mm; the output roller guard plate of the bar cooling bed includes at least one pair of guide wheels; the axis line of the guide wheels is perpendicular to the conveying panel; each pair of guide wheels is relatively arranged on both sides of the conveying panel; the top of the guide wheel is lower than the top of the first guide plate; the output roller guard plate of the bar cooling bed also includes a guide wheel guard plate; the bottom end of the guide wheel guard plate is connected to the conveying panel, and the top of the guide wheel guard plate is lower than the upper surface of the first guide plate; each of the guide wheels is provided with a guide wheel guard plate on both sides, one guide wheel guard plate is arranged on the side close to the first end wall of the conveying panel, and the other guide wheel guard plate is arranged on the side close to the second end wall of the conveying panel, and the ends of the two guide wheel guard plates located on the inner side of the conveying panel have a tendency to approach each other.

[0006] As shown in the attached figure of Patent: 202010748117.3, this patent mainly guides and conveys the transported steel by adding support beams and guide plates, which can solve the problem of steel piling, but the device as a whole does not have the ability to pick out bent steel, and cannot solve the problem of disordered steel on the cooling bed. Summary of the invention

[0007] The technical problem to be solved by the present invention is that the wear-resistant ring on the surface of the existing transmission roller mentioned in the technical background is integrated with the roller body. When the wear-resistant ring on the surface needs to be replaced, the entire roller needs to be replaced, which results in a high cost of use. The roller used to accelerate steel in a hot-rolled bar production workshop only has the function of transmitting steel. The device as a whole does not have the ability to assist in picking out bent steel, which is prone to steel piling and disordered steel problems.

[0008] In view of the above technical problems, a steel rolling cooling bed output roller is proposed; it is realized by the following technical scheme: a steel rolling cooling bed output roller comprises a frame, characterized in that it also comprises an acceleration roller, an arranging transmission mechanism and a picking mechanism, the acceleration roller is arranged on the frame, and the friction ring on the acceleration roller is detachable relative to the acceleration roller, the arranging transmission mechanism for arranging and transmitting materials is overlapped on the frame, the transmission direction of the arranging transmission mechanism is parallel to the axial direction of the acceleration roller, the materials are transmitted to the acceleration roller one by one through the arranging transmission mechanism, the picking mechanism is arranged on the frame at the front end of the rotation transmission direction of the acceleration roller, and the picking mechanism picks out the materials that are unqualified in bending under the action of the acceleration roller; The arrangement transmission mechanism includes an arrangement plate, a transmission chain, a transmission tooth, a sorting card, a lifting platform and a guide plate. One side of the arrangement plate is spliced ​​with the frame. The transmission chain is arranged on the lower surface of the arrangement plate and is driven by the transmission gear. The transmission tooth is detachably arranged on the transmission chain. The transmission tooth passes through the arrangement plate through the functional hole opened on the arrangement plate and rotates with the transmission chain. The sorting card is retractably arranged on the lower surface of the arrangement plate. The sorting card extends through the functional hole to the upper surface of the arrangement plate to sort the stacked materials. The transmission chain passes through the sorting card for transmission. A lifting platform is arranged in the functional hole at one end close to the frame, the lifting platform is higher than the upper surface of the arrangement plate, a guide plate for guiding the material is hinged on the lifting platform, the guide plate is overlapped on the acceleration roller, an arc-shaped groove with the same contour as the acceleration roller is opened at the overlap of the guide plate and the acceleration roller, the size of the arc-shaped groove is larger than the size of the contact surface with the acceleration roller, the material transmitted by the lifting platform is guided to the acceleration roller via the guide plate, and the overlap angle of the guide plate on the acceleration roller is adjustable.

[0009] In the present invention, the friction ring is detachably fixed on the base by using a cover, and the roller is made into two detachable parts as a whole. When replacement is needed, the friction ring is directly replaced, and the base is retained, which saves costs. Then, the steel is arranged by using an arrangement transmission mechanism arranged on the frame, and the transmitted steel is accelerated by using an acceleration roller. The picking mechanism arranged at the front end of the transmission direction of the acceleration roller can screen the transmitted steel, and the bent steel is picked out under the action of the acceleration roller, which effectively prevents the problems of steel piling and disorder.

[0010] Preferably, the picking mechanism includes a wing plate, a guide wheel, a slide and a mounting frame, wherein the two wing plates are V-shaped and arranged on a frame at the front end of the rotating transmission direction of the accelerating roller, and a plurality of guide rollers for guiding the bent materials are arranged on the surface of the wing plate, and the slide is arranged between the two wing plates, one end of the slide is hinged to the mounting frame, and two side edges of the slide are in contact with the wing plates, and an arc-shaped groove for placing the guide rollers is opened on the slide, and the mounting frame is arranged on the frame, one end of the slide is hinged to the slide, and two guide wheels are arranged at the hinge of the slide and the mounting frame, the two guide wheels are distributed up and down, and the spacing between the two guide wheels is adjustable, and a channel for the bent unqualified materials to pass through is formed between the two guide wheels distributed up and down, and the adjustable spacing between the two guide wheels makes the size of the channel for the bent unqualified materials to pass through adjustable, which is convenient for the transmission of materials of different sizes and easy to use.

[0011] In the preferred embodiment of the technical solution of the present invention, a channel for qualified materials to pass is reserved under the slide, the inclination angle of the slide relative to the mounting frame along the hinge is adjustable, and a plurality of transmission rollers for guiding material transmission are arranged on the upper surface of the slide. The inclination angle of the slide relative to the mounting frame along the hinge is adjustable, so that the channel for material transmission under the slide is adjustable, which is convenient for the transmission of materials of different sizes and easy to use.

[0012] Preferably, the technical solution of the present invention is that the accelerating roller comprises a base, a friction ring and a cover, wherein the base is a cylindrical tube, a mounting ring is arranged in the base, and the mounting ring is connected to the motor shaft, the friction ring is a cylindrical tube, the friction ring is detachably sleeved on the outside of the base, and the cover for fixing the base and the friction ring together is detachably fixed on both ends of the base, the outer diameter of the cover is equal to the outer diameter of the friction ring, and the setting of the outer diameter of the cover and the outer diameter of the friction ring being equal ensures that during the material transmission process, there will be no collision between the material and the cover due to the difference in the outer diameter of the cover and the outer diameter of the friction ring, causing the friction ring to loosen and fall off, thereby ensuring the stability of the accelerating roller.

[0013] Preferably, a straightening mechanism is provided on a frame below the picking mechanism at the front end of the rotating transmission direction of the accelerating roller. The straightening mechanism includes a plurality of straightening wheels. The straightening wheels are used to straighten materials bent in special parts that cannot be picked out by the picking mechanism. The setting of the straightening mechanism facilitates straightening of materials bent in the middle or at the tail, prevents steel from being disordered on the cooling bed, and is easy to use.

[0014] Preferably, a limit plate is arranged on the arrangement plate perpendicular to the arrangement plate, and the limit plate is arranged between the guide plate and the wing plate. The setting of the limit plate enables the material transmitted to the arrangement plate to be limited by the limit plate, thereby ensuring the stability of the operation of the mechanism.

[0015] The present invention also provides a processing technology for a roller table acceleration roller in a steel rolling cooling bed output roller table, comprising the following steps: Step 1: Cutting: The base body is made of seamless steel pipe, which is cut according to the requirements, and sufficient margin is left for rough and fine processing in the later stage; Step 2: Turning to remove most of the blank margin on the surface of the substrate and the parts that need to be joined at both ends; Step 3: Weld the mounting ring inside the base and calibrate the static balance to ensure the base rotates smoothly; Step 4: The substrate is annealed to eliminate thermal stress, and fine-processed according to the substrate drawing dimensions to ensure the size and surface roughness, and mounting holes for the cover are drilled at both ends of the substrate; Step 5: Making the friction ring, the length of the friction ring is smaller than the length of the substrate; Step 5.1: Melting, putting the refined raw materials into a vacuum furnace for melting, and adding chromium, molybdenum, vanadium, tungsten, boron, and carbon alloy elements; Step 5.2: casting, injecting the molten alloy liquid into the casting mold, and adding a nucleating agent during the cooling process, and obtaining a friction ring after cooling; Step 5.3: Heat treatment: annealing the cast friction ring to eliminate structural defects and internal stress; Step 5.4: Rough machining, removing the burrs on the surface of the friction ring and most of the blank residue on the surface; Step 5.5: quenching, quenching and subsequent heat treatment of the friction ring after rough machining to obtain a martensitic structure; Step 5.6: Finishing: Finish the friction ring after heat treatment according to the drawing to ensure the size and surface roughness, and drill mounting holes for the cover at both ends of the friction ring; Step 6: Assemble, assemble the manufactured base and friction ring together, and fix the two ends with covers.

[0016] In the preferred embodiment of the technical solution of the present invention, the surface of the substrate in step 4 should be flat and free of defects, and the HRC should be 28. Such a setting can ensure the stability and durability of the substrate and ensure the service life of the substrate.

[0017] In the preferred embodiment of the technical solution of the present invention, the friction ring 22 is heated to A during quenching in step 5.5. c3 (the temperature at which ferrite is completely transformed into austenite) above 30-50℃, and then cooled rapidly after insulation, and the cooling rate is greater than V 临 (obtaining the minimum cooling rate of all martensite). Such a setting facilitates the formation of martensite structure, improves the overall strength, hardness and wear resistance of the friction ring, increases the service life of the friction ring and reduces production costs.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The technical solution of the present invention utilizes a cover to detachably fix the friction ring on the base, and the roller is made into two detachable parts as a whole. When replacement is needed, the friction ring is directly replaced, and the base is retained, saving costs. Then, the steel is arranged by an arrangement transmission mechanism arranged on the frame, and the transmitted steel is accelerated by an acceleration roller. The picking mechanism arranged at the front end of the transmission direction of the acceleration roller can screen the transmitted steel, and the bent steel is picked out under the action of the acceleration roller, effectively preventing the problems of steel piling and disorder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the present invention; Figure 2 It is a three-dimensional schematic diagram of the acceleration roller of the present invention; Figure 3 It is a partial cross-sectional view of the acceleration roller; Figure 4 It is a three-dimensional schematic diagram of the arrangement transmission mechanism of the present invention; Figure 5 It is a three-dimensional schematic diagram of the picking mechanism of the present invention; Figure 6 This is a three-dimensional schematic diagram of the picking mechanism of the present invention picking out bent materials; Figure 7 This is a process diagram of heat treatment of the friction ring in the present invention; Figure 8 This is the metallographic diagram of the friction ring; Explanation of the accompanying drawings: 1-frame, 2-acceleration roller, 21-base, 22-friction ring, 23-cover, 24-fixing ring, 25-keyway, 3-arrangement transmission mechanism, 310-arrangement plate, 311-transmission chain, 312-transmission tooth, 313-sorting card, 314-lifting platform, 315-guide plate, 316-transmission gear, 317-functional hole, 318-limiting plate, 319-fixing card, 320-guide rod, 321-reset spring, 322-transmission rod, 323-sorting plate, 4-picking mechanism, 41-wing plate, 42-guide wheel, 43-slide, 44-mounting frame, 45-guide roller, 5-straightening mechanism, 51-straightening wheel. DETAILED DESCRIPTION

[0020] The following will be combined with the attached embodiment of the present invention Figure 1-8 , the technical solutions in the embodiments of the present invention are described in detail. Example

[0021] like Figure 1 , 2As shown in Figure 6, an output roller table of a steel rolling cooling bed includes a frame 1, an accelerating roller 2 arranged on the frame 1, an arranging transmission mechanism 3 overlapped with the frame 1, and a picking mechanism 4 arranged at the front end of the transmission direction of the accelerating roller.

[0022] The frame 1 is an existing device, which is mainly used for the installation of the acceleration roller 2 and serves as a channel for material transmission. A plurality of rectangular holes penetrating the frame 1 are evenly opened on the surface of the frame 1 perpendicular to the frame 1. The acceleration roller 2 is connected to the motor and fixed on the lower surface of the frame 1. A plurality of acceleration rollers 2 are provided, which pass through the frame 1 from the lower surface of the frame 1 through the rectangular holes opened on the frame 1, so that the highest point of the acceleration roller 2 is slightly higher than the surface of the frame 1, so that the material on the frame 1 can be transmitted under the action of the acceleration roller 2.

[0023] In order to ensure the stability of material transportation and prevent the material from colliding with the edge of the rectangular hole on the frame 1, after the acceleration roller 2 is installed, the interval between the outer wall of the acceleration roller 2 and the inner wall of the rectangular hole is very small.

[0024] like Figure 2 and 3 As shown, the acceleration roller 2 includes a base 21, a friction ring 22 and a cover 23. The base 21 is a cylindrical metal tube. A mounting ring for fixing the base 21 to the motor shaft is welded inside the base 21. The mounting ring is a circular ring with a hole in the middle. In order to facilitate welding, the outer diameter of the mounting ring is the same as the inner diameter of the base 21. The mounting ring is welded at the inner center of the base 21. A fixing ring 24 is welded at the center of the opening of the mounting ring. The fixing ring 24 is a cylindrical sleeve. A keyway 25 penetrating the fixing ring 24 is opened on the inner wall of the fixing ring 24 perpendicular to the inner wall of the fixing ring 24. The base 21 is mounted on the motor shaft through the fixing ring 24 and the keyway 25.

[0025] In order to facilitate the fixing of the friction ring 22 on the base 21 , six threaded holes are evenly opened at both ends of the base 21 and perpendicular to the base 21 .

[0026] The friction ring 22 is a cylindrical metal tube. The material of the friction ring 22 is different from that of the base 21. The overall length of the friction ring 22 is smaller than the length of the base 21, and the length difference is twice the size of the installation position of the cover 23. For ease of installation, the inner diameter of the friction ring 22 is equal to the outer diameter of the base 21, and the friction ring 22 is entirely sleeved on the outside of the base 21.

[0027] In order to facilitate the installation and fixation of the friction ring 22 , six threaded holes are evenly opened at both ends of the friction ring 22 and perpendicular to the friction ring 22 .

[0028] The cover 23 is a metal ring with an L-shaped cross section. One mounting surface of the cover 23 directly abuts against the annular end of the base 21, and the other mounting surface abuts against the annular end of the friction ring 22. Two groups of circular countersunk holes are evenly opened on the outer surface of the cover 23 perpendicular to the cover 23. Each group of circular countersunk holes has six. The two groups of circular countersunk holes and the friction ring 22 correspond to the threaded holes on the base 21. In order to ensure the stability and convenience of fixing the friction ring 22 and the base 21, the two groups of circular countersunk holes on the cover 23 are staggered and distributed at intervals.

[0029] The flat annular surface of the cover 23 is defined as the outer surface, and the two stepped surfaces of the cover 23 are defined as the mounting surfaces.

[0030] The assembly process of the acceleration roller 2 and the replacement process of the friction ring 22 are as follows: during assembly, the friction ring 22 is first put on the outside of the base 21, and then the cover 23 is put on the base 21, and the base 21 and the cover 23 are fixed together by screws, and then the friction ring 22 is rotated to align the threaded hole on the friction ring 22 with the circular countersunk hole on the cover 23, and then the screws are tightened to fix the friction ring 22 and the cover 23 together, and then the cover 23 and the screws are used to fix the friction ring 22 and the other end of the base 21, so that the assembly process of the acceleration roller 2 is completed. When the friction ring 22 needs to be replaced after long-term use, first loosen the screws on the friction ring 22 and the cover 23 at both ends of the base 21, remove the cover 23, and then you can directly remove the old friction ring 22 and replace it with a new friction ring 22, which is convenient for replacement and reduces costs.

[0031] like Figure 1 , 4 As shown in Figure 6, the arranging transmission mechanism 3 includes an arranging plate 310, a transmission chain 311, a transmission tooth 312, a sorting card 313, a lifting platform 314, a guide plate 315 and a transmission gear 316. The arranging transmission mechanism 3 is arranged on the side of the frame 1 through the arranging plate 310 as a whole, and is overlapped with the acceleration roller 2 through the guide plate 315. In addition, in order to facilitate the transmission of materials, the transmission direction of the arranging transmission mechanism 3 is parallel to the axial direction of the acceleration roller 2.

[0032] The arrangement plate 310 is a metal plate with a rectangular cross-section. The side edges of the arrangement plate 310 in the length direction and the side edges of the frame 1 in the length direction are spliced ​​together. A functional hole 317 is provided on the surface of the arrangement plate 310 along the width direction of the arrangement plate 310 and perpendicular to the arrangement plate 310, and passes through the arrangement plate 310. The cross-section of the functional hole 317 is rectangular, and in order to facilitate the transmission of materials, the edge of the functional hole 317 is close to the splicing surface of the arrangement plate 310 and the frame 1, and a plurality of functional holes 317 are evenly arranged in the transmission direction of the arrangement plate 310.

[0033] By definition, the direction in which the longer side of the arrangement plate 310 extends is the length direction, and the side perpendicular thereto is the width direction.

[0034] The sorting card 313 is a metal card with a U-shaped cross-section. The direction corresponding to the extension of the U-shaped cross-section of the sorting card 313 is defined as the thickness direction. The overall thickness of the sorting card 313 is 3 cm. In order to facilitate the passage of materials through the sorting card 313 and the contact surface of the materials is smoothed, a circular through hole is provided on the plane at the lower end of the sorting card 313 and perpendicular to the lower surface of the sorting card 313, penetrating the sorting card 313. The sorting card 313 is fixed to the arrangement plate 310 through the circular through hole using a U-shaped fixing card 319.

[0035] The fixing card 319 is a metal card with a U-shaped cross-section. The direction corresponding to the extension of the U-shaped cross-section of the fixing card 319 is defined as the thickness direction. The overall thickness of the fixing card 319 is 4 cm. Two rectangular fixing blocks are protruding outwardly from the two straight arms of the fixing card 319 perpendicular to the side of the fixing card 319, and a circular through hole for fixing the fixing card 319 on the arrangement plate 310 is opened perpendicular to the fixing block. The fixing card 319 is fixed to the lower surface of the arrangement plate 310 through the circular through hole.

[0036] On the horizontal surface of the U-shaped fixing card 319, a guide rod 320 is welded perpendicular to the surface of the fixing card 319, and the guide rod 320 extends in the direction of the two straight arms of the fixing card 319, and the diameter of the guide rod 320 is slightly smaller than the circular through hole penetrating the sorting card 313. The sorting card 313 can move up and down along the guide rod 320, and in order to ensure that the sorting card 313 can automatically rise, a return spring 321 is sleeved on the outside of the guide rod 320, one end of the return spring 321 is against the sorting card 313, and the other end is against the fixing card 319. In order to prevent the sorting card 313 from falling off the guide rod 320, a nut is fixed to the end of the guide rod 320.

[0037] The transmission chain 311 is a chain made of metal and driven to rotate by a transmission gear 316. It is an existing device. The transmission chain 311 is arranged as a whole at the lower part of the arrangement plate 310, leaving a certain interval from the lower surface of the arrangement plate 310, and the chain on the upper part of the transmission chain 311 passes through the U-shaped sorting card 313. The transmission gear 316 is fixed to the lower surface of the arrangement plate 310 through a transmission rod 322, and the two transmission gears 316 are distributed on both sides of the arrangement plate 310 with a left and right interval. The transmission chain 311 is installed on the two transmission gears 316, and the motor connected to the transmission rod 322 drives the transmission gear 316 to rotate through the transmission rod 322, thereby driving the transmission chain 311 to transmit.

[0038] In order to facilitate the arrangement and transmission of materials, a plurality of transmission teeth 312 are detachably arranged on the transmission chain 311, and the interval between two adjacent transmission teeth 312 can be freely adjusted according to the size of the transmission material. In order to facilitate the installation of the transmission teeth 312, two circular through holes penetrating the chain plates are provided on each chain plate of the transmission chain 311, and the transmission teeth 312 are fixed on the chain plates of the transmission chain 311 at intervals by pins.

[0039] The transmission tooth 312 is composed of a U-shaped card and a rectangular metal sheet welded on the bottom plane of the U-shaped card. Two straight arms of the U-shaped card of the transmission tooth 312 are provided with two holes corresponding to the circular through holes on the chain plate. The U-shaped card on the transmission tooth 312 is clamped on the two opposite chain plates in the transmission chain 311 as a whole and fixed by pins. The rectangular metal sheet welded on the bottom plane of the U-shaped card extends to the upper surface of the arrangement plate 310 through the functional hole 317 provided on the arrangement plate 310 to transmit the materials stacked on the arrangement plate 310. The length of the rectangular metal sheet should be limited so that only a single material can be pushed. When multiple materials are stacked together, only the material at the bottom can be pushed.

[0040] In order to facilitate the transmission of long strip materials, multiple sets of transmission chains 311 , transmission teeth 312 , sorting cards 313 , lifting platforms 314 and transmission gears 316 are provided, all of which are arranged at the functional holes 317 on the arrangement plate 310 .

[0041] The lifting platform 314 is a triangular metal plate arranged near the functional hole 317 at the joint of the arrangement plate 310 and the frame 1. Its main function is to lift the materials transmitted by the transmission teeth 312 onto the guide plate 315.

[0042] The guide plate 315 is a rectangular metal plate, and its arrangement direction is parallel to the arrangement direction of the acceleration roller 2. The longer side end of the guide plate 315 is hinged on the lifting platform 314, and the other end is placed on the acceleration roller 2. In order not to affect the rotation of the acceleration roller 2, an arc-shaped notch is opened at the contact point between the guide plate 315 and the acceleration roller 2, so that the guide plate 315 is placed above the acceleration roller 2, but does not actually contact the acceleration roller 2. In this way, there will be no position interference between the guide plate 315 and the acceleration roller 2. The material lifted to the guide plate 315 via the lifting platform 314 slides onto the acceleration roller 2 via the guide plate 315.

[0043] In order to extend the service life of the acceleration roller 2, the angle of the guide plate 315 relative to the acceleration roller 2 is adjustable, so that the position where the material falls on the acceleration roller 2 can be adjusted, which makes the use of the acceleration roller 2 more uniform. After long-term use, not only one position will be worn, thereby extending the service life of the acceleration roller 2 and reducing the production cost.

[0044] In order to facilitate the arrangement of materials by the arranging transmission mechanism 3, a sorting plate 323 is obliquely arranged on the upper surface of the arranging plate 310, at the end farther from the joint of the arranging plate 310 and the frame 1. The sorting plate 323 is a rectangular metal plate, and the length direction of the sorting plate 323 and the guide plate 315 are parallel. The materials transmitted to the arranging plate 310 will first be preliminarily sorted by the sorting plate 323 and then fall onto the arranging plate 310, and then arranged and transmitted by the arranging transmission mechanism 3.

[0045] To facilitate the transmission of materials on the arrangement plate 310, a limit plate 318 is provided on the arrangement plate 310 perpendicular to the arrangement plate 310. The limit plate 318 is a rectangular metal plate welded on the upper surface of the arrangement plate 310. The limit plate 318 is arranged between the guide plate 315 and the wing plate 41. To prevent position interference, the limit plate 318 has a triangular notch near the wing plate 41 so that the limit plate 318 will not block the material transmitted to the position of the wing plate 41. The setting of the limit plate 318 makes it possible to limit the material transmitted to the arrangement plate 310 through the limit plate 318, and the material will not exceed the limit plate 318, thereby ensuring that the end of the material after the material is transmitted and the channel for transmitting the material on the wing plate 41 maintains a certain distance, thereby ensuring the stability of the operation of the mechanism.

[0046] Arrangement and transmission process of the arrangement transmission mechanism 3 for materials: When the materials are initially sorted by the sorting plate 323 and then transmitted to the arrangement plate 310, the transmission teeth 312 on the transmission chain 311 will be transmitted in the transmission direction of the transmission chain 311 under the action of the transmission gear 316. At this time, if there is bent material, two materials will overlap together. At this time, under the action of the transmission teeth 312, the two materials are transmitted in the direction of the sorting card 313. When the material contacts the sorting card 313, the sorting card 313 will move downward along the guide rod 320 under the action of the material thrust. It can push the material at the bottom. At this time, under the action of the reaction force, the material stacked on the top will fall off, so that the two stacked materials are separated. After the material passes, the sorting card 313 will automatically reset under the action of the reset spring 321. In order to ensure that the two stacked materials can be completely separated, multiple sorting cards 313 are arranged in the transmission direction of the transmission chain 311. After a single material is transmitted to the lifting platform 314, the material will be driven to the lifting platform 314 under the action of the transmission teeth 312, and fall onto the acceleration roller 2 through the guide plate 315 hinged to the lifting platform 314 for subsequent transmission.

[0047] like Figure 1 , 5As shown in 6, the picking mechanism 4 includes a wing plate 41, a guide wheel 42, a slide 43 and a mounting frame 44. The picking mechanism 4 is arranged as a whole on the frame 1 at the front end of the transmission direction of the acceleration roller 2, and is mainly used to pick out materials that are bent and cannot pass through, effectively preventing steel piling and disorder.

[0048] The wing plate 41 is a rectangular metal plate with rectangular holes on the surface. Two wing plates 41 are distributed in a V shape on the frame 1 at the front end of the transmission direction of the acceleration roller 2. A plurality of rectangular through holes penetrating the wing plate 41 are evenly opened on the surface of the wing plate 41 and perpendicular to the wing plate 41. A cylindrical guide roller 45 is installed at each rectangular through hole on the back of the wing plate 41.

[0049] The guide roller 45 is fixed to the back of the wing plate 41 through two rectangular mounting blocks fixed on the wing plate 41. The guide roller 45 can rotate freely along the mounting position, and a part of the guide roller 45 will be exposed through the rectangular through hole of the wing plate 41, so as to guide the passing material and reduce friction.

[0050] The mounting frame 44 is a frame arranged on the frame 1 for mounting the slideway 43 and the guide wheel 42 , and the mounting frame 44 is U-shaped as a whole.

[0051] The slide 43 is a trapezoidal metal plate, which is arranged between the two wing plates 41. The two side edges of the slide 43 are respectively spaced 5 mm apart from the two wing plates 41. One end of the slide 43 is hinged to the end of the mounting frame 44, and the angle between the slide 43 and the mounting frame 44 is adjustable relative to the mounting frame 44. The slide 43 is suspended between the two wing plates 41, and a channel for normal material passage is left under the slide 43. Arc grooves for placing guide rollers 45 are provided on the two sides of the slide 43 close to the wing plates 41, and in order to ensure that the slide 43 will not interfere with the guide roller 45 when adjusting the angle, the size of the arc groove should be slightly enlarged.

[0052] In order to facilitate the stably moving of the picked materials on the slide 43 and reduce friction, a round roller having the same function as the guide roller 45 on the wing plate 41 is also provided on the surface of the slide 43 .

[0053] The guide wheel 42 is composed of a driving wheel and a driven wheel. The driving wheel is connected to the motor and can rotate. The driven wheel is arranged above the driving wheel. A channel for materials to pass through is formed between the two. In order to cope with materials of different diameters and complex material bending conditions, the distance between the driven wheel and the driving wheel is adjustable. The adjustment method is to open a rectangular groove on the mounting frame 44, place a slider in the rectangular groove, and the end of the driven wheel is connected to the slider. The slider moves up and down in the rectangular groove through a threaded mounting rod, thereby achieving the effect of adjusting the distance between the driven wheel and the driving wheel.

[0054] The use process of the picking mechanism 4 is as follows: when the material with bent ends is transferred to the acceleration roller 2, the material is transmitted forward under the action of the acceleration roller 2. When it is transmitted to the wing plate 41, due to the bending of the material, the material will contact the wing plate 41. At this time, due to the action of the acceleration roller 2, the material will continue to move forward. At this time, the material will be lifted upward under the action of the V-shaped structure of the wing plate 41 and the guide roller 45, and then fall onto the slide 43. At this time, the rear end of the material is still on the acceleration roller 2, and will continue to move forward under the action of the acceleration roller 2. After passing through the slide 43, the material will enter the channel formed between the driven wheel and the driving wheel on the guide wheel 42. The material is then guided and transmitted by the guide wheel 42 and moves along the mounting frame 44 to the specified position to complete the picking of the bent material.

[0055] When encountering materials that are bent in the middle or at the tail end and cannot be picked out by the picking mechanism 4 , the materials can be straightened by the straightening mechanism 5 arranged at the front end of the accelerating roller 2 in the transmission direction.

[0056] like Figure 1 As shown, the straightening mechanism 5 is arranged at the front end of the transmission direction of the acceleration roller 2 and is parallel to the material transmitted by the acceleration roller 2. The material transmitted by the acceleration roller 2 will directly enter the straightening mechanism 5 for straightening. The straightening mechanism 5 includes multiple straightening wheels 51, which can straighten the bent materials in special parts that cannot be picked out by the picking mechanism 4.

[0057] The straightening mechanism 5 is an existing device and can be purchased and used directly.

[0058] like Figure 7 and 8 As shown, the processing technology of the roller table acceleration roller in the output roller table of the steel rolling cooling bed includes the following steps: Step 1: Cut the base 21 and the cover 23. Specifically, 45# steel can be selected. The base 21 is cut with a seamless steel pipe, and the cover 23 is cut with a cylindrical metal rod. The base 21 and the cover 23 are cut as required, and sufficient margins are left for later rough and fine processing; Step 2: Turning to remove most of the blank margin on the surface of the base 21 and the parts at both ends that need to be joined; Step 3: Weld the mounting ring inside the base 21. After welding, perform static balancing on the base 21 to ensure that the base 21 can rotate smoothly. Step 4: Anneal the substrate 21 and the cover 23 to eliminate thermal stress. The annealing temperature is 750°C to 800°C, and the holding time is 1 hour. Then cool with the furnace. After annealing, the substrate 21 and the cover 23 are finely processed according to the drawing dimensions. The cover 23 is directly processed by the CNC machining center to ensure the size and surface roughness. After processing, mounting holes are drilled at both ends of the substrate 21 and the cover 23. The surface of the substrate 21 after processing should be flat and defect-free, and the HRC is 28; Step 5: manufacturing the friction ring 22, wherein the length of the friction ring 22 is smaller than the length of the substrate 21; Step 5.1: Smelting the raw materials. First, the refined raw materials are put into a vacuum furnace for smelting. The raw materials include common materials such as iron and carbon, and chromium, molybdenum, vanadium, tungsten, boron, and carbon alloy elements are added. In this way, after quenching the steel and tempering it at 500-600℃, the steel will undergo secondary hardening to increase the hardness of the steel. The chromium content is ≤0.5%, the molybdenum content is 0.15%-0.6%, the vanadium content is ≤0.1%, and the tungsten content is 15%-20%; Step 5.2: casting, injecting the molten alloy liquid into the casting mold, and adding a nucleating agent during the cooling process to achieve the effect of grain refinement. The nucleating agent can be selected from niobium, titanium, chromium and other nucleating agents, and the friction ring 22 is obtained after cooling; Step 5.3: heat treatment, annealing the cast friction ring 22 at a temperature of 750° C. to 800° C. for 2 hours, followed by furnace cooling to eliminate structural defects and internal stress; Step 5.4: Rough machining, removing the burrs on the surface of the friction ring 22 and most of the blank residue on the surface; Step 5.5: heat treatment, quenching the friction ring 22 after rough machining, the quenching process is, firstly heat the friction ring 22 to 550℃, and keep it at 550℃ for 60min, then heat it to 850℃, keep it at 850℃ for 90min, then heat it to 1050℃, keep it at 1050℃ for 120min, and then oil quench the friction ring 22, after quenching, naturally cool it in the air to obtain a large amount of martensite structure, increase the strength and wear resistance of the friction ring 22, after cooling, the friction ring 22 needs to be tempered again, the tempering temperature is 550℃, keep it for 180min and then cool it with the furnace, in this way, because the friction ring 22 contains chromium, molybdenum, vanadium, tungsten, boron and carbon alloy elements, the friction ring 22 will undergo secondary hardening, further enhancing the strength and wear resistance of the friction ring 22; Step 5.6: Finishing: The friction ring 22 after heat treatment is first cleaned and sandblasted, and then finished according to the drawing to ensure the size and surface roughness, and drilling mounting holes for the cover 23 at both ends of the friction ring 22; Step 6: Assemble, assemble the manufactured base body 21 and friction ring 22 together, and fix the two ends with sealing covers 23.

[0059] In order to facilitate the formation of martensite structure in the friction ring 22, improve the overall strength, hardness and wear resistance of the friction ring 22, increase the service life of the friction ring 22, and reduce the production cost, the friction ring 22 should be heated to A during quenching. c3(the temperature at which ferrite is completely transformed into austenite) above 30-50℃, and then cooled rapidly after insulation, and the cooling rate is greater than V 临 (Minimum cooling rate to obtain complete martensite).

[0060] The above embodiments are only for illustrating the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the present invention.

Claims

1. A steel rolling cooling bed output roller table, comprising a frame (1) characterized by: It also comprises an accelerating roller (2), an arranging transmission mechanism (3) and a picking mechanism (4), wherein the accelerating roller (2) is arranged on the frame (1), and the friction ring (22) on the accelerating roller (2) is detachable relative to the accelerating roller (2); the arranging transmission mechanism (3) for arranging and transmitting materials is overlapped on the frame (1); the transmission direction of the arranging transmission mechanism (3) is parallel to the axial direction of the accelerating roller (2); the materials are transmitted one by one to the accelerating roller (2) via the arranging transmission mechanism (3); the picking mechanism (4) is arranged on the frame (1) at the front end of the rotating transmission direction of the accelerating roller (2); and the picking mechanism (4) picks out materials that are unqualified in bending under the action of the accelerating roller (2); The arrangement transmission mechanism (3) comprises an arrangement plate (310), a transmission chain (311), a transmission tooth (312), a sorting card (313), a lifting platform (314) and a guide plate (315); one side of the arrangement plate (310) is spliced ​​with the frame (1); the transmission chain (311) is arranged on the lower surface of the arrangement plate (310) and is driven by a transmission gear (316); the transmission tooth (312) is detachably arranged on the transmission chain (311); the transmission tooth (312) passes through the arrangement plate (310) via a functional hole (317) provided on the arrangement plate (310) and rotates with the transmission chain (311); the sorting card (313) is retractably arranged on the lower surface of the arrangement plate (310); the sorting card (313) passes through the functional hole (317) and extends to the upper surface of the arrangement plate (310) to sort the stacked materials; the transmission chain (311) passes through the sorting card (313) for transmission; A lifting platform (314) is arranged in the functional hole (317) at one end close to the frame (1), the lifting platform (314) being higher than the upper surface of the arrangement plate (310), a guide plate (315) for guiding the material being hinged on the lifting platform (314), the guide plate (315) being overlapped on the acceleration roller (2), an arc-shaped groove having the same contour as the acceleration roller (2) being provided at the overlap between the guide plate (315) and the acceleration roller (2), the size of the arc-shaped groove being larger than the size of the contact surface with the acceleration roller (2), the material transmitted by the lifting platform (314) being guided to the acceleration roller (2) via the guide plate (315), and the overlap angle of the guide plate (315) on the acceleration roller (2) being adjustable.

2. The steel rolling cooling bed output roller table according to claim 1, characterized in that: The picking mechanism (4) comprises a wing plate (41), a guide wheel (42), a slideway (43) and a mounting frame (44). The wing plates (41) are two in number and are arranged in a V-shape on the frame (1) at the front end of the rotating transmission direction of the accelerating roller (2). A plurality of guide rollers (45) for guiding the bent materials are arranged on the surface of the wing plates (41). The slideway (43) is arranged between the two wing plates (41). One end of the slideway (43) is hinged to the mounting frame (44). The two sides of the slideway (43) are hinged to the wing plates (41). The slideway (43) is in contact with the plate (41), an arc-shaped groove for placing a guide roller (45) is opened on the slideway (43), the mounting frame (44) is arranged on the frame (1), one end of which is hinged to the slideway (43), and two guide wheels (42) are arranged at the hinge between the slideway (43) and the mounting frame (44), the two guide wheels (42) are distributed up and down, the distance between the two guide wheels (42) is adjustable, and a channel for bending unqualified materials to pass through is formed between the two guide wheels (42) distributed up and down.

3. The steel rolling cooling bed output roller table according to claim 2, characterized in that: A passage for qualified materials to pass through is reserved below the slideway (43); the slideway (43) is adjustable in inclination angle relative to the mounting frame (44) along the hinge; and a plurality of transmission rollers for guiding material transmission are arranged on the upper surface of the slideway (43).

4. The steel rolling cooling bed output roller table according to claim 1, characterized in that: The accelerating roller (2) comprises a base (21), a friction ring (22) and a cover (23). The base (21) is a cylindrical tube. A mounting ring is arranged inside the base (21) and is connected to a motor shaft via the mounting ring. The friction ring (22) is a cylindrical tube. The friction ring (22) can be detachably sleeved on the outside of the base (21). The cover (23) for fixing the base (21) and the friction ring (22) together can be detachably fixed on both ends of the base (21). The outer diameter of the cover (23) is equal to the outer diameter of the friction ring (22).

5. The steel rolling cooling bed output roller table according to claim 1, characterized in that: A straightening mechanism (5) is provided on the frame (1) below the picking mechanism (4) at the front end of the accelerating roller (2) in the rotation transmission direction. The straightening mechanism (5) comprises a plurality of straightening wheels (51). The straightening wheels (51) are used to straighten materials that are bent at special locations that cannot be picked out by the picking mechanism (4).

6. The steel rolling cooling bed output roller table according to claim 1, characterized in that: A limiting plate (318) is provided on the arrangement plate (310) perpendicular to the arrangement plate (310), and the limiting plate (318) is provided between the guide plate (315) and the wing plate (41).

7. A process for processing roller table acceleration rollers in a steel rolling cooling bed run-out roller table according to claims 1-6, comprising the following steps: Step 1: Cutting: The base body (21) is made of seamless steel pipe and cut according to the requirements, leaving enough margin for rough and fine processing in the later stage; Step 2: Turning to remove most of the blank margin on the surface of the base (21) and the parts at both ends that need to be joined; Step 3: Weld a mounting ring inside the base (21) and calibrate the static balance to ensure that the base (21) rotates smoothly; Step 4: The base (21) is annealed to eliminate thermal stress, and is finely processed according to the drawing dimensions of the base (21) to ensure the dimensions and surface roughness, and mounting holes for mounting the cover (23) are drilled at both ends of the base (21); Step 5: manufacturing the friction ring (22), wherein the length of the friction ring (22) is smaller than the length of the base body (21); Step 5.1: Melting, putting the refined raw materials into a vacuum furnace for melting, and adding chromium, molybdenum, vanadium, tungsten, boron, and carbon alloy elements; Step 5.2: casting, injecting the molten alloy liquid into a casting mold, and adding a nucleating agent during the cooling process, and obtaining a friction ring (22) after cooling; Step 5.3: heat treatment, annealing the cast friction ring (22) to eliminate structural defects and internal stress; Step 5.4: Rough machining to remove the burrs on the surface of the friction ring (22) and most of the blank residue on the surface; Step 5.5: quenching, quenching and subsequent heat treatment of the friction ring (22) after rough machining to obtain a martensitic structure; Step 5.6: Finishing: Finish the friction ring (22) after heat treatment according to the drawing to ensure the size and surface roughness, and drill mounting holes for mounting the cover (23) at both ends of the friction ring (22); Step 6: Assemble the manufactured base body (21) and friction ring (22) together, and fix the two ends with sealing covers (23).

8. The process for processing the roller table acceleration roller in the run-out roller table of a steel rolling cooling bed according to claim 7 is characterized in that: The surface of the substrate (21) in step 4 should be flat and free of defects, with an HRC of 28.

9. The process for machining the roller table acceleration roller in the run-out roller table of a steel rolling cooling bed according to claim 7, characterized in that: During quenching in step 5.5, the friction ring (22) should be heated to A c3 (the temperature at which ferrite is completely transformed into austenite) above 30-50℃, and then cooled rapidly after insulation, and the cooling rate is greater than V 临 (Minimum cooling rate to obtain complete martensite).

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