H-beam support roller array structure

Abstract

The present invention is a H-shaped blank support roller array structure, including an outer support clamping part for supporting and clamping the H-shaped blank from the outside, an inner support clamping part is arranged inside the outer support clamping part, the inner support clamping part includes a web support roller, a spherical roller push rod and a spherical roller, the web support roller, the spherical roller push rod and the spherical roller are all spaced up and down and arranged in pairs, each spherical roller can be dynamically adjusted, the first end of each spherical roller push rod can be circumferentially fixed and can be inserted into the web support roller slidably along the axial direction, the second end of each spherical roller push rod is connected to a spherical roller coaxial with the web support roller, each spherical roller can rotate synchronously with the web support roller and can move axially under the action of the spherical roller push rod, and each spherical roller is used to apply pressure to the R corner of the H-shaped blank to offset the bulging force. The present invention applies pressure to the R corner of the H-shaped blank by arranging a dynamically adjustable spherical roller, strengthens the support at the R corner of the H-shaped blank, and solves the problem of bulging of the R corner and wide surface.

Description

Technical Field

[0001] The invention relates to the technical field of continuous casting equipment, and in particular to an H-beam supporting roller array structure. Background Art

[0002] It took 56 years from the successful trial of H-beam at Algoma Steel in 1964 to the successful introduction of H-beam into China by Maanshan Iron and Steel Company in 1998, to the production of the world's largest heavy-duty shaped blank of 1300×510×120mm at Maanshan Iron and Steel in June 2020. As the cross-sectional size of shaped blanks continues to increase, more and more problems are brought about, mainly focusing on the following points:

[0003] (1) The increase in R-angle cracks or direct cracking is mainly caused by inappropriate mold taper and uneven cooling.

[0004] (2) The bulging defect of the R corner is further aggravated, mainly because the cross-section is further enlarged, resulting in the support frame being unable to effectively support the R corner.

[0005] In the prior art, the patent "A multi-strand continuous casting machine capable of producing super-large cross-section special-shaped billets or slabs" (CN207267037U) discloses a multi-strand continuous casting machine capable of producing super-large cross-section special-shaped billets or slabs, and the multi-strand continuous casting machine can produce special-shaped billets with a single weight of 2.2t / m, or slabs with a thickness of 300mm, or crack-sensitive steel slabs; the patent "A fan-shaped segment maintenance and arc alignment device for an H-shaped billet continuous casting machine" (CN202824566U) discloses a fan-shaped segment maintenance and arc alignment device for an H-shaped billet continuous casting machine, comprising a fan-shaped segment support frame, a reference calibration device and an auxiliary arc alignment device; the reference calibration device comprises a reference platform, an H-shaped reference block and a first positioning reference device; the auxiliary arc alignment device comprises a support plate, a base surface adjustment plate and a second positioning reference device; the patent "Roller for rolling continuous casting billets with liquid core" (CN2421094Y) discloses a roller device for rolling continuous casting billets with liquid core. The roller device prevents cracks from being generated in the rolled liquid core continuous casting billet and improves the continuous casting efficiency. The roller device is composed of a pair of horizontal rollers and a pair of vertical rollers, and the axes of the two pairs of rollers are in the same vertical plane. The rolling mill equipped with such rollers can roll the rectangular continuous casting billet with liquid core into H-shaped, groove-shaped, and smaller rectangular billets. With these billets of different shapes, the number of rolling passes of the finished product can be reduced, and the uneven deformation in the forming process can also be reduced; the above three patents do not involve a solution to improve the problem of poor support of the R corner of the H-shaped billet.

[0006] Therefore, the inventors, relying on their many years of experience and practice in related industries, propose an H-beam support roller array structure to overcome the defects of the prior art. Summary of the invention

[0007] The purpose of the present invention is to provide an H-beam support roller array structure, which applies pressure to the R corner of the H-beam by setting a dynamically adjustable spherical roller, thereby enhancing the support at the R corner of the H-beam and solving the problem of bulging of the R corner and wide surface.

[0008] The object of the present invention is achieved in this way. An H-shaped blank support roller array structure comprises an outer support clamping part for supporting and clamping the H-shaped blank from the outside, an inner support clamping part for supporting and clamping the H-shaped blank from both sides of the web and the R angle is arranged in the outer support clamping part, and the inner support clamping part comprises a web support roller, a spherical roller push rod and a spherical roller, the web support roller, the spherical roller push rod and the spherical roller are all spaced up and down and arranged in pairs, and a spherical roller push rod and a spherical roller are respectively arranged at two axial ends of each of the web support rollers, each of the spherical rollers can be dynamically adjusted, the first end of each of the spherical roller push rods can be circumferentially fixed and can be inserted into the web support roller slidably along the axial direction, the second end of each of the spherical roller push rods is connected to the spherical roller coaxial with the web support roller, each of the spherical rollers can rotate synchronously with the web support roller and can move axially under the action of the spherical roller push rod, and each of the spherical rollers is used to apply pressure to the R angle of the H-shaped blank to offset the bulging force.

[0009] In a preferred embodiment of the present invention, connecting blind holes are respectively arranged at the center of both ends of each of the web support rollers, and the spherical roller push rods are arranged in each of the connecting blind holes so as to be circumferentially fixed and axially slidable. The first end of each of the spherical roller push rods is sleeved with a first hydraulic sealing ring which can seal and slide along the connecting blind hole, and a second hydraulic sealing ring is sleeved in each of the connecting blind holes so as to be axially spaced from the first hydraulic sealing ring. The second end of each of the spherical roller push rods can seal and slide along the second hydraulic sealing ring, and a push rod extension oil chamber is formed between the first hydraulic sealing ring and the bottom of the connecting blind hole, and the push rod extension oil chamber is connected to the first inlet and outlet oil flow channels, and a push rod retraction oil chamber is formed between the first hydraulic sealing ring and the second hydraulic sealing ring, and the push rod retraction oil chamber is connected to the second inlet and outlet oil flow channels.

[0010] In a preferred embodiment of the present invention, the external support clamping portion includes a fixed support frame, two mounting ring plates are spaced apart in the support frame, first hinged through holes are arranged at positions of the two mounting ring plates opposite to each of the web support rollers, and both ends of each of the web support rollers are respectively hinged in the corresponding first hinged through holes.

[0011] In a preferred embodiment of the present invention, a lifting oil circuit is provided in each of the mounting ring plates, and a lifting oil annular oil guide groove is provided in each of the web support rollers. The lifting oil circuit and the lifting oil annular oil guide groove are sealed and connected to form the first oil inlet and outlet flow channel, the lifting oil annular oil guide groove is connected to the push rod extension oil chamber, and the outlet of the lifting oil circuit is used to connect with the hydraulic pump; a return oil circuit is also provided in each of the mounting ring plates, and a return oil annular oil guide groove is provided in each of the web support rollers. The return oil circuit and the return oil annular oil guide groove are sealed and connected to form the second oil inlet and outlet flow channel, the return oil annular oil guide groove is connected to the push rod retraction oil chamber, and the outlet of the return oil circuit is used to connect with the hydraulic pump.

[0012] In a preferred embodiment of the present invention, connecting bosses with reduced diameters are provided at both ends of each of the web support rollers, and a first step portion is formed between the outer wall of each of the web support rollers and the outer wall of the connecting bosses, the first step portion is sealed against the side wall of the mounting ring plate, and the opening of the lifting oil annular oil guide groove is located on the first step portion; a plurality of sealing ring grooves are arranged at intervals on the side wall of each of the mounting ring plates against the first step portion, and a sealing ring is clamped in each of the sealing ring grooves, and the sealing ring is used to seal from the side and isolate the first inlet and outlet oil flow channel and the second inlet and outlet oil flow channel.

[0013] In a preferred embodiment of the present invention, a ball is disposed between each of the mounting ring plates and each of the first step portions to abut and roll against each other.

[0014] In a preferred embodiment of the present invention, a tapered roller bearing is sleeved on each of the connecting bosses, the outer ring of the tapered roller bearing is sleeved in each of the first hinged through holes, and the two ends of each of the web support rollers are located on the outside of the tapered roller bearing and are also sleeved with a first check nut; the first end of each of the spherical roller push rods is located on the outside of the first hydraulic sealing ring and is connected to an end cover, and the end cover is used to axially push against the first hydraulic sealing ring.

[0015] In a preferred embodiment of the present invention, a wing plate side support roller is hinged to both sides of the support frame, and a pair of wing plate inner and outer support rollers spaced up and down are hinged to the inner sides of the wing plate side support rollers.

[0016] In a preferred embodiment of the present invention, the cross-section of the spherical roller push rod is square, elliptical or racetrack-shaped, and the cross-section of the connecting blind hole is matched with the cross-section of the spherical roller push rod.

[0017] In a preferred embodiment of the present invention, the spherical roller push rod is a push rod group composed of two round rods, and the cross section of the connecting blind hole is matched with the cross section of the spherical roller push rod.

[0018] As described above, the H-beam support roller array structure provided by the present invention has the following beneficial effects:

[0019] The H-beam support roller array structure provided by the present invention applies pressure to the R corner of the H-beam by arranging dynamically adjustable spherical rollers, thereby enhancing the support at the R corner of the H-beam, suppressing the bulging deformation at the R corner, and thus solving the problem of bulging at the R corner and wide surface; the spherical roller can move axially under the action of the spherical roller push rod, and can be compatible with H-beams of different web widths within a certain width range without changing the support rollers, and has high versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following drawings are intended only to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0021] Figure 1 : It is a schematic diagram of the H-beam support roller array structure of the present invention.

[0022] Figure 2 :for Figure 1 Section view at AA in the middle.

[0023] Figure 3 :for Figure 2 Cross-sectional view at BB in the middle.

[0024] Figure 4 :for Figure 2 Enlarged view of point I in the middle.

[0025] Figure 5 : Schematic diagram of H-beam.

[0026] In the figure:

[0027] 100. H-beam supporting roller array structure;

[0028] 1. Spherical roller;

[0029] 2. Spherical roller push rod; 21. End cover; 22. Second check nut; 23. Clamping bolt;

[0030] 3. Web support roller;

[0031] 31. Connecting blind hole; 32. Lifting oil annular oil guide groove; 33. Return oil annular oil guide groove; 34. Connecting boss; 35. First step portion; 36. Ball; 37. Tapered roller bearing; 38. First check nut;

[0032] 41. First hydraulic sealing ring; 42. Second hydraulic sealing ring;

[0033] 5. Support frame;

[0034] 51. Installing ring plate; 511. Sealing ring groove; 512. Sealing ring; 52. Lifting oil circuit; 53. Return oil circuit; 54. Side support rollers of wing plate; 55. Inner and outer support rollers of wing plate;

[0035] 6. H-shaped blank; 61. R angle. DETAILED DESCRIPTION

[0036] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0037] The specific embodiments of the present invention described herein are only used to explain the purpose of the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be considered to belong to the scope of the present invention. It should be noted that when an element is referred to as "arranged on" another element, it can be directly on the other element or there can also be a central element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a central element at the same time. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation method.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0039] like Figures 1 to 4 As shown, the present invention provides an H-beam support roller array structure 100, including an outer support clamping portion for supporting and clamping the H-beam from the outside, and a support roller for supporting and clamping the H-beam from both sides of the web and the R angle 61 (such as Figure 5 The inner support clamping part includes a web support roller 3, a spherical roller push rod 2 and a spherical roller 1, and the web support roller 3 (as shown in FIG. Figure 2In the state shown, the central axis of the web support roller 3 is arranged horizontally), the spherical roller push rod 2 and the spherical roller 1 are spaced apart from each other and arranged in pairs, a spherical roller push rod 2 and a spherical roller 1 are respectively arranged at the axial ends of each web support roller 3, each spherical roller 1 can be dynamically adjusted, the first end of each spherical roller push rod 2 can be fixed circumferentially and can be inserted into the web support roller 3 slidably along the axial direction (each spherical roller push rod 2 is fixed circumferentially relative to the web support roller 3 to ensure that the spherical roller 1 can rotate synchronously with the web support roller 3), the second end of each spherical roller push rod 2 is connected to the spherical roller 1 coaxial with the web support roller 3, each spherical roller 1 can rotate synchronously with the web support roller 3 and can move axially under the action of the spherical roller push rod 2, and each spherical roller 1 is used to apply pressure to the R corner of the H-shaped blank to offset the bulging force (the spherical roller 1 is driven by a hydraulic assembly with a synchronous rotation function composed of the spherical roller push rod 2 and the web support roller 3, and can apply a certain pressure to the R corner to offset the bulging force).

[0040] Since the R corner of the H-beam is not on the same horizontal plane as the web, it cannot be effectively supported. The bulging of the H-beam with a small cross-section is not obvious, but as the cross-section continues to increase, the radius of the R corner continues to increase, resulting in more and more places being unsupported. In particular, the bulging at the R corner of the H-beam with a large cross-section has become the biggest problem restricting the production of this type of billet. The H-beam support roller array structure 100 provided by the present invention effectively solves the problem of R corner bulging, and can also apply a certain clamping force according to different cross-sections to effectively control the R corner bulging; the spherical roller 1 can move axially under the action of the spherical roller push rod 2, and can be compatible with H-beams with different web widths within a certain width range without changing the support roller.

[0041] The H-beam support roller array structure provided by the present invention applies pressure to the R corner of the H-beam by arranging dynamically adjustable spherical rollers, thereby enhancing the support at the R corner of the H-beam, suppressing the bulging deformation at the R corner, and thus solving the problem of bulging at the R corner and wide surface; the spherical roller can move axially under the action of the spherical roller push rod, and can be compatible with H-beams of different web widths within a certain width range without changing the support rollers, and has high versatility.

[0042] Further, if Figure 2 , Figure 3 , Figure 4As shown, a connecting blind hole 31 is respectively arranged at the center of both ends of each web support roller 3, and a spherical roller push rod 2 is arranged in each connecting blind hole 31 so as to be fixed in the circumferential direction and slidable in the axial direction. A first hydraulic seal ring 41 which can be sealed and slid along the connecting blind hole 31 is sleeved on the first end (tail end) of each spherical roller push rod 2, and a second hydraulic seal ring 42 which is sleeved in each connecting blind hole 31 and is axially spaced from the first hydraulic seal ring 41, and the second end of each spherical roller push rod 2 can be sealed and slid along the second hydraulic seal ring 42, and a push rod extension oil chamber is formed between the first hydraulic seal ring 41 and the bottom of the connecting blind hole 31, and the push rod extension oil chamber is connected to the first inlet and outlet oil flow channel, and a push rod retraction oil chamber is formed between the first hydraulic seal ring 41 and the second hydraulic seal ring 42, and the push rod retraction oil chamber is connected to the second inlet and outlet oil flow channel. The connecting blind hole 31 forms a hydraulic chamber, the spherical roller push rod 2 forms a piston rod, and the web support roller 3 and the spherical roller push rod 2 form a hydraulic structure, so as to realize the hydraulic control and adjustment of the spherical roller 1.

[0043] Further, if Figure 1 , Figure 2 As shown, the outer support clamping part includes a fixed support frame 5, two mounting ring plates 51 are arranged at intervals in the support frame 5, and first hinged through holes are arranged at positions opposite to each web support roller 3 on the two mounting ring plates 51, and both ends of each web support roller 3 are respectively hinged in the corresponding first hinged through holes.

[0044] Further, if Figure 2 , Figure 3 , Figure 4 As shown, a lifting oil circuit 52 is arranged in each mounting ring plate 51, and a lifting oil annular oil guide groove 32 is arranged in each web support roller 3. The lifting oil circuit 52 and the lifting oil annular oil guide groove 32 are sealed and connected to form a first oil inlet and outlet channel. The lifting oil annular oil guide groove 32 is connected to the push rod extension oil chamber, and the outlet of the lifting oil circuit 52 is used to communicate with the hydraulic pump; a return oil circuit 53 is also arranged in each mounting ring plate 51, and a return oil annular oil guide groove 33 is arranged in each web support roller 3. The return oil circuit 53 and the return oil annular oil guide groove 33 are sealed and connected to form a second oil inlet and outlet channel. The return oil annular oil guide groove 33 is connected to the push rod retraction oil chamber, and the outlet of the return oil circuit 53 is used to communicate with the hydraulic pump.

[0045] When the spherical roller push rod 2 pushes the spherical roller 1 to extend, oil is injected into the push rod extension oil chamber through the lifting oil circuit 52 and the lifting oil annular oil guide groove 32 (the first oil inlet and outlet flow channel), and the push rod retraction oil chamber returns oil through the return oil circuit 53 and the return oil annular oil guide groove 33 (the second oil inlet and outlet flow channel); when the spherical roller push rod 2 pulls the spherical roller 1 to retract, oil is injected into the push rod retraction oil chamber through the return oil circuit 53 and the return oil annular oil guide groove 33 (the second oil inlet and outlet flow channel), and the push rod extension oil chamber returns oil through the lifting oil circuit 52 and the lifting oil annular oil guide groove 32 (the first oil inlet and outlet flow channel).

[0046] Further, if Figure 2 , Figure 3 As shown, both ends of each web support roller 3 are provided with connecting bosses 34 with a reduced diameter, and a first step portion 35 is formed between the outer wall of each web support roller 3 and the outer wall of the connecting boss 34. The first step portion 35 is sealed against the side wall of the mounting ring plate 51, and the opening of the lifting oil annular oil guide groove 32 is located on the first step portion 35; a plurality of sealing ring grooves 511 are arranged at intervals on the side wall of each mounting ring plate 51 against the first step portion 35, and a sealing ring 512 is clamped in each sealing ring groove 511, and the sealing ring 512 is used to seal from the side and isolate the first inlet and outlet oil flow channel and the second inlet and outlet oil flow channel. In this embodiment, the number of the sealing ring grooves 511 and the sealing ring 512 is 3, which are respectively located between the first inlet and outlet oil flow channel and the second inlet and outlet oil flow channel and on both sides thereof, to ensure the sealing isolation of the oil paths between the flow channels.

[0047] In this embodiment, in order to ensure the free rotation of the web support roller 3, a ball 36 is provided between each mounting ring plate 51 and each first step portion 35 to abut and roll against each other, and the ball 36 plays the role of a thrust bearing.

[0048] Further, if Figure 2 , Figure 3 , Figure 4 As shown, a tapered roller bearing 37 is sleeved on the connecting bosses 34 at both ends of each web support roller 3, and the outer ring of the tapered roller bearing 37 is sleeved in each first hinged through hole, and the two ends of each web support roller 3 are located on the outside of the tapered roller bearing 37 and are also sleeved with a first check nut 38; the first end of each spherical roller push rod 2 is located on the outside of the first hydraulic sealing ring 41 and is connected to an end cover 21, and the end cover 21 is used to axially press against the first hydraulic sealing ring 41; in this embodiment, the end cover 21 is connected to the first end of the spherical roller push rod 2 by a clamping bolt 23; the open end of each connecting blind hole 31 is sleeved with a second check nut 22, and the second hydraulic sealing ring 42 is arranged on the second check nut 22 to facilitate the adjustment of the sealing tightness of the second hydraulic sealing ring 42.

[0049] By adjusting the tightness of the first check nut 38, the sealing ability of the annular dynamic seal formed by the three sealing ring grooves 511 and the sealing ring 512 on the support frame 5 can be adjusted. When the first check nut 38 is tightened, the pressure applied to the sealing ring 512 on the support frame 5 is greater, thereby improving the sealing performance, and vice versa.

[0050] In order to enable the web support roller 3 to rotate relative to the support frame 5 while also playing a sealing role, a clamping force must be applied to the web support roller 3 and the support frame 5. The tapered roller bearing 37 provides axial support and the first check nut 38 provides a clamping force.

[0051] In order to provide good support for the narrow side of the H-shaped blank wing plate, a wing plate side support roller 54 (such as Figure 2 In the state shown, the central axis of the wing plate side support roller 54 is vertically arranged), and both ends of each wing plate side support roller 54 are hinged to the support frame 5 through tapered roller bearings;

[0052] In order to support the inner and outer sides of the H-shaped blank wing plate, a pair of inner and outer wing plate support rollers 55 (such as Figure 2 In the state shown, the central axis of the inner and outer supporting rollers 55 of the wing plate is arranged horizontally, and both ends of the inner and outer supporting rollers 55 of each wing plate are hinged to the supporting frame 5 through tapered roller bearings.

[0053] Furthermore, in order to ensure that the spherical roller 1 can rotate synchronously with the web support roller 3, each spherical roller push rod 2 is circumferentially fixed relative to the web support roller 3, the cross-section of the spherical roller push rod 2 is non-circular, and the cross-section of the connecting blind hole is matched with the cross-section of the spherical roller push rod. The cross-section of the spherical roller push rod can be square, elliptical or runway-shaped; the spherical roller push rod can also be a push rod group consisting of two circular rods.

[0054] The working principle of the H-beam supporting roller array structure 100 of the present invention is as follows:

[0055] (1) When the H-beam has not entered the H-beam support roller array structure 100: the hydraulic pump injects oil into the push rod retraction oil chamber through the return oil circuit 53 and the return oil annular oil guide groove 33 (the second inlet and outlet oil flow channel), and the push rod extension oil chamber returns oil through the jacking oil circuit 52 and the jacking oil annular oil guide groove 32 (the first inlet and outlet oil flow channel). The spherical roller push rod 2 is pulled back to the most compact position, and multiple sealing rings 512 ensure the sealing of the second inlet and outlet oil flow channel and the first inlet and outlet oil flow channel to avoid oil overflow (even when the web support roller 3 rotates relative to the support frame 5, there will be no oil overflow);

[0056] (2) When the H-shaped blank enters the H-shaped blank supporting roller array structure 100: the hydraulic pump injects oil into the push rod extension oil chamber through the lifting oil circuit 52 and the lifting oil annular oil guide groove 32 (the first oil inlet and outlet flow channel), and the push rod retraction oil chamber returns oil through the return oil circuit 53 and the return oil annular oil guide groove 33 (the second oil inlet and outlet flow channel), and the spherical roller push rod 2 pushes the spherical roller 1 until it presses the R angle surface of the H-shaped blank, and the pressure value is the yield strength of the current blank;

[0057] (3) Normal continuous casting process of H-beam: The H-beam drives the spherical roller 1, the web support roller 3, the wing plate side support roller 54 and the wing plate inner and outer support rollers 55 to rotate normally. The spherical roller 1 and the web support roller 3 can rotate relative to the support frame 5 under the support of the ball 36;

[0058] (4) After the continuous casting of the H-beam billet is stopped: the hydraulic pump injects oil into the push rod retraction oil chamber through the return oil circuit 53 and the return oil annular oil guide groove 33 (the second oil inlet and outlet flow channel), and the push rod extension oil chamber returns oil through the lifting oil circuit 52 and the lifting oil annular oil guide groove 32 (the first oil inlet and outlet flow channel), and the spherical roller push rod 2 is pulled back to the most compact position to protect the hydraulic rod from accidental damage.

[0059] (5) When the cross-sectional width of the H-beam increases, the hydraulic pump injects oil into the push rod extension oil chamber through the lifting oil circuit 52 and the lifting oil annular oil guide groove 32 (the first oil inlet and outlet flow channel), and the push rod retraction oil chamber returns oil through the return oil circuit 53 and the return oil annular oil guide groove 33 (the second oil inlet and outlet flow channel). The spherical roller push rod 2 pushes the spherical roller 1 until it presses the R angle surface of the H-beam. The extension stroke of the spherical roller push rod 2 is smaller than that of the H-beam with a conventional cross-sectional width. The subsequent process is carried out through the aforementioned (3) and (4), so that the new R angle of the H-beam is well supported.

[0060] As described above, the H-beam support roller array structure provided by the present invention has the following beneficial effects:

[0061] The H-beam support roller array structure provided by the present invention applies pressure to the R corner of the H-beam by arranging dynamically adjustable spherical rollers, thereby enhancing the support at the R corner of the H-beam, suppressing the bulging deformation at the R corner, and thus solving the problem of bulging at the R corner and wide surface; the spherical roller can move axially under the action of the spherical roller push rod, and can be compatible with H-beams of different web widths within a certain width range without changing the support rollers, and has high versatility.

[0062] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. An H-shaped blank support roller array structure, characterized in that: The invention relates to a method for manufacturing an H-shaped blank according to the present invention, wherein the outer support clamping part is used to support and clamp the H-shaped blank from the outer side, wherein an inner support clamping part is provided in the outer support clamping part, wherein the inner support clamping part comprises a web support roller, a spherical roller push rod and a spherical roller, wherein the web support roller, the spherical roller push rod and the spherical roller are spaced up and down and arranged in pairs, and a spherical roller push rod and a spherical roller are respectively provided at two axial ends of each web support roller, wherein each spherical roller can be dynamically adjusted, and a first end of each spherical roller push rod can be circumferentially fixed and can be inserted into the web support roller slidably along the axial direction, and a second end of each spherical roller push rod is connected to the spherical roller coaxial with the web support roller, wherein each spherical roller can rotate synchronously with the web support roller and can move axially under the action of the spherical roller push rod, and each spherical roller is used to apply pressure to the R corner of the H-shaped blank to offset the bulging force; A connecting blind hole is respectively arranged at the center of both ends of each web support roller, and the spherical roller push rod is arranged in each connecting blind hole so as to be circumferentially fixed and axially slidable, and the first end of each spherical roller push rod is sleeved with a first hydraulic sealing ring which can seal and slide along the connecting blind hole, and a second hydraulic sealing ring is sleeved in each connecting blind hole so as to be axially spaced from the first hydraulic sealing ring, and the second end of each spherical roller push rod can seal and slide along the second hydraulic sealing ring, and a push rod extension oil chamber is formed between the first hydraulic sealing ring and the bottom of the connecting blind hole, and the push rod extension oil chamber is connected to the first inlet and outlet oil flow passage, and a push rod retraction oil chamber is formed between the first hydraulic sealing ring and the second hydraulic sealing ring, and the push rod retraction oil chamber is connected to the second inlet and outlet oil flow passage; The outer support clamping part comprises a fixed support frame, two mounting ring plates are arranged at intervals in the support frame, first hinged through holes are arranged at positions of the two mounting ring plates opposite to the web support rollers, and two ends of each web support roller are respectively hinged in the corresponding first hinged through holes; A lifting oil circuit is provided in each of the mounting ring plates, and a lifting oil annular oil guide groove is provided in each of the web support rollers. The lifting oil circuit and the lifting oil annular oil guide groove are sealed and connected to form the first oil inlet and outlet flow channel. The lifting oil annular oil guide groove is connected to the push rod extension oil chamber, and the outlet of the lifting oil circuit is used to communicate with the hydraulic pump; a return oil circuit is also provided in each of the mounting ring plates, and a return oil annular oil guide groove is provided in each of the web support rollers. The return oil circuit and the return oil annular oil guide groove are sealed and connected to form the second oil inlet and outlet flow channel. The return oil annular oil guide groove is connected to the push rod retraction oil chamber, and the outlet of the return oil circuit is used to communicate with the hydraulic pump; Both ends of each web support roller are provided with connecting bosses with a reduced diameter, and a first step portion is formed between the outer wall of each web support roller and the outer wall of the connecting boss, and the first step portion is sealed against the side wall of the mounting ring plate, and the opening of the lifting oil annular oil guide groove is located on the first step portion; a plurality of sealing ring grooves are arranged at intervals on the side wall of each mounting ring plate against which the first step portion is pressed, and a sealing ring is clamped in each sealing ring groove, and the sealing ring is used to seal from the side and isolate the first inlet and outlet oil flow channel and the second inlet and outlet oil flow channel; A wing plate side support roller is hinged on both sides of the support frame, and a pair of wing plate inner and outer support rollers spaced up and down are hinged on the inner sides of the wing plate side support rollers.

2. The H-beam supporting roller array structure according to claim 1, characterized in that: A ball is arranged between each of the mounting ring plates and each of the first step portions for abutment and rolling.

3. The H-beam supporting roller array structure according to claim 1, characterized in that: A tapered roller bearing is sleeved on each of the connecting bosses, and the outer ring of the tapered roller bearing is sleeved in each of the first hinged through holes. Both ends of each of the web support rollers are located on the outside of the tapered roller bearing and are also sleeved with a first check nut; the first end of each of the spherical roller push rods is located on the outside of the first hydraulic sealing ring and is connected to an end cover, and the end cover is used to axially push against the first hydraulic sealing ring.

4. The H-beam supporting roller array structure according to claim 1, characterized in that: The cross section of the spherical roller push rod is square, elliptical or racetrack-shaped, and the cross section of the connecting blind hole is matched with the cross section of the spherical roller push rod.

5. The H-beam supporting roller array structure according to claim 1, characterized in that: The spherical roller push rod is a push rod group composed of two round rods, and the cross section of the connecting blind hole is matched with the cross section of the spherical roller push rod.

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