Hydraulically-driven steel plate rotating device for angular rolling of medium plate

Abstract

The invention relates to the technical field of rolling, in particular to a hydraulically-driven steel plate rotating device for angular rolling of a medium plate, which consists of two steel rotating working platforms, two groups of bases and two groups of scissor type hydraulic telescopic arm mechanisms, the two steel rotating working platforms are perpendicular to the rolling direction and are arranged in parallel; and the two groups of scissor type hydraulic telescopic arm mechanisms are respectively fixed on the base. The device is high in response speed, high in steel rotating precision and simple in structure, the problem that the length of a blank is limited can be solved, meanwhile, the device can also be used as a steel plate centering device in conventional rolling, and the steel plate centering devices do not need to be independently installed on the two sides of a conveying roller way.

Description

Technical Field

[0001] The invention relates to the technical field of rolling, and in particular to a hydraulically driven steel plate rotating device for angle rolling of medium and thick plates. Background Art

[0002] At present, the medium and heavy plate rolling process is divided into three stages: forming, widening and stretching. The cross-rolling + longitudinal rolling technology is the main medium and heavy plate rolling technology at present. The disadvantage of this technology is that the slab needs to be rotated 90 degrees between each stage of the medium and heavy plate rolling process. , production efficiency is limited; at the same time, due to the limitation of the maximum rolling width, when the slab length is greater than the maximum rolling width of the rolling mill, the horizontal rolling width cannot be expanded. The medium and thick plate angle rolling technology is different from the horizontal rolling + longitudinal rolling technology. The slab is rotated to make the rolled piece form a certain angle with the rolling center line for rolling. The angle is generally 15-45 , thereby achieving multi-directional deformation, improving plate shape quality, increasing rolling efficiency, and expanding product specification range. The existing angle rolling technology has the following problems:

[0003] (1) The positioning accuracy is low due to the reliance on the side guide plate, and it is impossible to achieve precise turning of the slab at a small angle. At the same time, the slab length is limited due to the length of the side guide plate, which affects production efficiency.

[0004] (2) Most existing devices have multiple sets of hydraulic push rods on both sides of the roller conveyor. The pushing amount of each push rod is different, the position is fixed and the structure is complex.

[0005] (3) An independent steel plate centering device is required to center the steel plate before steel transfer, and a large amount of space is occupied on both sides of the roller at the entrance of the rolling mill. Summary of the Invention

[0006] In order to solve the technical problems existing in the prior art, the present invention provides a hydraulically driven steel plate rotating device for medium and thick plate angle rolling.

[0007] According to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] A hydraulically driven steel plate rotating device for medium and thick plate angle rolling consists of two steel rotating work platforms, two sets of bases and two sets of scissor-type hydraulic telescopic arm mechanisms; the two steel rotating work platforms are perpendicular to the rolling direction and arranged in parallel; the two sets of scissor-type hydraulic telescopic arm mechanisms are respectively fixed on the bases.

[0009] As a preferred solution of the hydraulically driven steel plate rotating device for angle rolling of medium and thick plates described in the present invention, a single steel rotating work platform is composed of an L-shaped push plate, two sliding platforms, two convex sliding guide rails, two hydraulic push rod assemblies, two transverse hydraulic cylinders, two Z-shaped connecting parts, two nuts, four roller groups, and four laser rangefinders; the piston rod of the transverse hydraulic cylinder is extended and retracted to drive the sliding platform to move on the convex sliding guide rail along the vertical rolling direction.

[0010] As a preferred solution of the hydraulically driven steel plate rotating device for medium and thick plate angle rolling described in the present invention, a rectangular through groove is opened at the center position of the horizontal plate of the L-shaped push plate, four positioning holes are welded on the back of the vertical plate of the L-shaped push plate, two in a group, and four sliding guide holes are welded on the back of the vertical plate of the L-shaped push plate, also two in a group.

[0011] As a preferred solution of the hydraulically driven steel plate rotating device for angle rolling of medium and thick plates described in the present invention, there is a stepped hole at the head of the Z-shaped connecting piece, and two through holes are opened at the tail thereof, and the width of the main body of the Z-shaped connecting piece is slightly smaller than the width of the rectangular through groove at the center position of the horizontal plate of the L-shaped push plate.

[0012] As a preferred solution of the hydraulically driven steel plate rotating device for angle rolling of medium and thick plates described in the present invention, taking a single transverse hydraulic cylinder as an example, the end of its piston rod passes through the head stepped hole of the Z-type connector and is connected with the nut to form a threaded pair, thereby fixing the Z-type connector on the piston rod of the transverse hydraulic cylinder; the bolt passes through the tail through hole of the Z-type connector to fix the sliding platform on the Z-type connector, thereby realizing the extension and retraction of the piston rod of the transverse hydraulic cylinder to drive the sliding platform to move in the vertical rolling direction on the convex sliding guide rail.

[0013] As a preferred solution of the hydraulically driven steel plate rotating device for medium and thick plate angle rolling described in the present invention, wherein: two convex sliding guide rails are symmetrically fixed on both sides of the rectangular through groove by bolts; two transverse hydraulic cylinders are fixed to the two ends of the bottom surface of the L-shaped push plate horizontal plate; the Z-shaped connecting piece passes through the rectangular through groove on the L-shaped push plate horizontal plate, and then the transverse hydraulic cylinder is installed and matched with the sliding platform; four roller groups are fixed in pairs at the two ends of the bottom surface of the L-shaped push plate horizontal plate; laser rangefinders are respectively installed on the back of the tails of the two Z-shaped connecting pieces to monitor the moving distance of the sliding platform in the straight rolling direction in real time.

[0014] As a preferred solution of the hydraulically driven steel plate rotating device for medium and thick plate angle rolling described in the present invention, the concave tracks under the two sliding platforms are installed on two convex sliding guide rails to form a sliding pair.

[0015] As a preferred solution of the hydraulically driven steel plate rotating device for medium and thick plate angle rolling described in the present invention, taking the hydraulic push rod assembly as an example, it is composed of a cylinder body and a piston rod assembly.

[0016] As a preferred solution of the hydraulically driven steel plate rotating device for medium and thick plate angle rolling described in the present invention, in order to monitor the steel plate rotation angle in real time during the steel turning process, a special structural design is made for the piston rod component of the hydraulic push rod assembly, and the piston rod component group consists of a piston rod, a spring, a sliding block, a rotating block, an axial positioning nut, and an angle sensor. A table is provided at the upper end of the piston rod, and a hole is drilled on the table for connection with the spring; a milling surface is provided on the piston rod to cooperate with the sliding block to limit the circumferential rotation of the sliding block. The axial positioning nut is connected to the end of the piston to limit the axial movement of the rotating block. The upper end surface of the rotating block is used to install the angle sensor.

[0017] As a preferred embodiment of the hydraulically driven steel plate rotating device for medium and thick plate angle rolling described in the present invention, the sliding block and the rotating block are internally cylindrical cam components, and the two are engaged with each other. When the steel turning operation is required, the two hydraulic push rod assemblies on the diagonal line give the steel plate a torque to rotate the steel plate. Taking the counterclockwise steel turning as an example, the rotating block at the end of the hydraulic push rod assembly rotates synchronously with the steel plate, and its side end face is always in contact with the edge of the steel plate; during the rotation process, the sliding block is pressed down and the spring is compressed. After the steel turning is completed, the rotating block leaves the steel plate, the spring rebounds and pushes the sliding block upward. Due to the cylindrical cam structure inside the sliding block and the rotating block, the rotating block is automatically reset.

[0018] As a preferred solution of the hydraulically driven steel plate rotating device for medium and thick plate angle rolling described in the present invention, wherein: a single base is composed of a baffle, two rolling guides, and 10 rolling guide support seats, and a base laser rangefinder, wherein four positioning holes and four sliding guide holes are welded on the vertical support surface of the baffle, the baffle and the rolling guide support seat are fixed to the side wall of the drainage channel below the steel plate conveying roller of the medium and thick plate production line by bolts, the base laser rangefinder is fixed in front of the baffle and keeps a certain distance from the side edge of the baffle, and is used for real-time monitoring of the moving distance of the steel turning work platform in the rolling direction; the two rolling guides are respectively fixed to the rolling guide support seats by bolts, and the length of the rolling guide is greater than half the length of the steel plate.

[0019] As a preferred solution of the hydraulically driven steel plate rotating device for medium and thick plate angle rolling described in the present invention, a single scissor-type hydraulic telescopic arm mechanism is composed of a single earring hydraulic cylinder, a hydraulic cylinder bottom connecting support, two pins, a rod end joint bearing, a piston rod head connecting support seat, two long round steels, four short round steels, and eight scissor arms with through holes at the head, middle and tail.

[0020] The beneficial effects of the present invention are as follows:

[0021] The present invention provides a hydraulically driven steel plate rotation device for medium and thick plate angle rolling. The device consists of two steel plate rotation platforms, two bases, and two sets of scissor-type hydraulic telescopic arm mechanisms. The two steel plate rotation platforms are arranged parallel to and perpendicular to the rolling direction. The two sets of scissor-type hydraulic telescopic arm mechanisms are fixed to the bases. This device offers fast response speed, high steel plate rotation accuracy, and a simple structure. It can address the issue of limited billet length and can also serve as a steel plate centering device during conventional rolling, eliminating the need for separate steel plate centering devices on either side of the conveyor roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the overall structure of a hydraulically driven steel plate rotating device for medium and thick plate angle rolling;

[0024] Figure 2 This is a schematic diagram of the structure of a single steel turning work platform;

[0025] Figure 3 It is a schematic diagram of a single L-shaped push plate structure;

[0026] Figure 4 It is a schematic diagram of the structure of a single Z-shaped connector;

[0027] Figure 5 This is a schematic diagram of the installation and coordination of the transverse hydraulic cylinder and the sliding platform;

[0028] Figure 6 This is a schematic diagram of the installation of the transverse hydraulic cylinder and the sliding platform on the L-shaped push plate;

[0029] Figure 7 This is a schematic diagram of the installation and matching of the convex sliding guide rail and the sliding platform;

[0030] Figure 8 It is a schematic diagram of the structure of a single hydraulic push rod assembly;

[0031] Figure 9 It is a schematic diagram of the structure of a single piston rod assembly;

[0032] Figure 10 Schematic diagram of the internal structure of the rotating block and the sliding body;

[0033] Figure 11 This is a schematic diagram of the working state of the piston rod assembly during the steel turning process;

[0034] Figure 12 Schematic diagram of a single base structure;

[0035] Figure 13 This is an exploded diagram of the structure of a single scissor-type hydraulic telescopic arm mechanism;

[0036] Figure 14 This is a schematic diagram of the overall assembly structure of a single scissor-type hydraulic telescopic arm mechanism;

[0037] Figure 15 This is a schematic diagram of the connection between the scissor-type hydraulic telescopic arm, the base and the steel turning work platform;

[0038] Figure 16 This is the flow chart of medium and thick plate angle rolling.

[0039] Description of Figure Numbers:

[0040] 1, 4 - steel turning working platform, 2, 5 - base, 3, 6 - scissor-type hydraulic telescopic arm mechanism;

[0041] 11-L type push plate, 12-laser rangefinder A, 12 -Laser rangefinder 1B, 16 -Laser rangefinder 2A, 16 - Laser rangefinder II B, 13 - Sliding platform A, 13 - Sliding platform B, 14 - Convex sliding guide rail A, 14 - Convex sliding guide B, 15 - Hydraulic push rod assembly A, 15 -Hydraulic push rod assembly B, 17 -Roller assembly A, 17 - Roller set 1 B, 18 - Roller set 2 A, 18 - Roller group 2 B, 19 - Transverse hydraulic cylinder A, 19 -Transverse hydraulic cylinder B, 110 -Z type connector A, 110 -Z-type connector B, 111-Nut A, 111 - Nut B;

[0042] 11-1- rectangular slot, 11-2- positioning hole A, 11-2 - Positioning hole 1B, 11-3 - Positioning hole 2A, 11-3 - Positioning hole 2B, 11-4 - Sliding guide hole 1A, 11-4 - Sliding guide hole 1B, 11-5 - Sliding guide hole 2A, 11-5 - Sliding guide hole 2B;

[0043] 110-1-stepped hole, 110-2-through hole A, 110-2 -Through hole B, 110-3 -Bolt A, 110-3 - Bolt B;

[0044] 151-cylinder body, 152-piston rod assembly, 152-1-piston rod, 152-2-spring, 152-3-sliding block, 152-4-rotating block A, 15 2-4-Rotate Block B, 45 2-4-Rotate Block C, 45 2-4-rotating block D, 152-5-axial positioning nut, 152-6-angle sensor, 152-11-table, 152-12-milling surface, 152-13-hole;

[0045] 21- baffle, 22- rolling guide A, 22 - Rolling guide rail B, 23 - Rolling guide rail support seat A, 23 - Rolling guide rail support seat 1B, 24 - Rolling guide rail support seat 2A, 24 - Rolling guide rail support seat 2B, 25 - Rolling guide rail support seat 3A, 25 - Rolling guide rail support seat three B, 26 - Rolling guide rail support seat four A, 26 - Rolling guide rail support seat 4B, 27 - Rolling guide rail support seat 5A, 27 - Rolling guide support seat 5B, 28- base laser rangefinder, 21-1- positioning hole 3A, 21-1 - Positioning hole three B, 21-2 - Positioning hole four A, 21-2 - Positioning hole 4B, 21-3 - Sliding guide hole 3A, 21-3 - Sliding guide hole three B, 21-4 - Sliding guide hole four A, 21-4 - Sliding guide hole 4B;

[0046] 31-single earring hydraulic cylinder, 32-pin shaft 1, 33-hydraulic cylinder bottom connection support, 34-pin shaft 2, 35-rod end joint bearing, 36-piston rod head connection support seat, 310-long round steel A, 310 -Long round steel B, 39 -Short round steel A, 39 -Short round steel 1B, 311 -Short round steel 2A, 311 - Short round steel 2 B, 37 - Scissor arm 1 A, 37 - Scissor arm 1B, 38 - Scissor arm 2A, 38 -Scissor arm 2B, 312 -Scissor arm 3A, 312 -Scissor arm three B, 313 -Scissor arm four A313 -Scissor arm quad B.

[0047] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0048] The following will be a clear and complete description of the technical solutions in the embodiments. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0049] The present invention provides a hydraulically driven steel plate rotating device for medium and thick plate angle rolling. The device has a fast response speed, high steel rotation accuracy, and a simple structure, and can solve the problem of limited billet length. At the same time, the device can also be used as a steel plate centering device in conventional rolling, and there is no need to install separate steel plate centering devices on both sides of the conveyor roller.

[0050] Figure 1 This is a schematic diagram of the hydraulically driven plate rotation device for medium and heavy plate angle rolling. The device consists of two steel rotation platforms 1 and 4, two bases 2 and 5, and two scissor-type hydraulic telescopic arm mechanisms 3 and 6. The two steel rotation platforms 1 and 4 are arranged parallel to the rolling direction; the two scissor-type hydraulic telescopic arm mechanisms 3 and 6 are fixed to the bases 2 and 5, respectively.

[0051] Figure 2 The structural diagram of a single steel turning work platform is shown in FIG. A single steel turning work platform 1 is composed of an L-shaped push plate 11, two sliding platforms (sliding platform A13 and sliding platform B13 ), two convex sliding guide rails (convex sliding guide rail A14 and convex sliding guide rail B14 ), two hydraulic push rod assemblies (hydraulic push rod assembly A15 and hydraulic push rod assembly B15 ), two transverse hydraulic cylinders (transverse hydraulic cylinder A19 and transverse hydraulic cylinder B19 ), two Z-connectors (Z-connector A110 and Z-connector B110 ), two nuts (nut A111 and nut B111 ), four roller groups (roller group A17 and roller group B17 As well as roller group 2 A18 and roller group 2 B18 ), four laser rangefinders (laser rangefinder A12 and laser rangefinder B12 As well as Laser Rangefinder II A16 and Laser Rangefinder II B16 The piston rod of the transverse hydraulic cylinder is extended and retracted to drive the sliding platform to move along the convex sliding guide rail in the vertical rolling direction.

[0052] Figure 3 The schematic diagram of the L-shaped push plate structure is shown. Taking a single steel turning work platform 1 as an example, a rectangular through slot 11-1 is opened at the center of the horizontal plate of the L-shaped push plate 11, and four positioning holes (positioning hole A11-2 and positioning hole B11-2) are welded on the back of the vertical plate of the L-shaped push plate 11. As well as positioning hole 2 A11-3 and positioning hole 2 B11-3 ), two by two as a group (for example, positioning hole 1 A11-2 and positioning hole 2 A11-3 as a group), four sliding guide holes (sliding guide hole 1 A11-4 and sliding guide hole 1 B11-4 As well as sliding guide hole 2 A11-5 and sliding guide hole 2 B11-5 ), also in pairs (for example, sliding guide hole 1 A11-4 and sliding guide hole 2 A11-5 are a group).

[0053] Figure 4 The Z-shaped connector 110 has a stepped hole 110-1 at its head and two through holes (through hole A 110-2 and through hole B 110-2) at its tail. ), the width of the main body of the Z-shaped connecting member 110 is slightly smaller than the width of the rectangular through groove 11-1 at the center position of the horizontal plate of the L-shaped push plate 11.

[0054] Figure 5 This is a diagram of the installation and coordination of the traverse hydraulic cylinder and the sliding platform. Taking a single traverse hydraulic cylinder A19 as an example, the end of its piston rod passes through the stepped hole 110-1 in the head of the Z-type connector A110 and connects with the nut A111 to form a threaded pair, thereby fixing the Z-type connector A110 to the piston rod of the traverse hydraulic cylinder A19. Bolts (bolt A110-3 and bolt B110-3 ) through the tail through holes of Z-type connector A110 (through hole A110-2 and through hole B110-2 ) Fix the sliding platform A13 on the Z-shaped connector A110, so that the piston rod of the horizontal hydraulic cylinder A19 can be extended and retracted to drive the sliding platform A13 on the convex sliding guide rails (convex sliding guide rails A14 and convex sliding guide rails B14) ) moves perpendicular to the rolling direction.

[0055] Figure 6 This is a schematic diagram of the installation of the transverse hydraulic cylinder and the sliding platform on the L-shaped push plate. Two convex sliding guide rails (convex sliding guide rail A14 and convex sliding guide rail B14) ) are fixed symmetrically on both sides of the rectangular slot 11-1 by bolts. ) is fixed at both ends of the bottom surface of the L-shaped push plate 11 horizontal plate, such as Figure 6 (a) As shown. The Z-shaped connecting piece A110 passes through the rectangular slot 11-1 on the horizontal plate of the L-shaped push plate 11, and then press Figure 6 The method described above will be to use the traverse hydraulic cylinders (traverse hydraulic cylinder A19 and traverse hydraulic cylinder B19 ) and sliding platforms (sliding platform A13 and sliding platform B13 ) for installation, such as Figure 6 (b) As shown. Four roller groups are fixed in pairs at the two ends of the bottom surface of the horizontal plate of the L-shaped push plate 11. Laser rangefinder (laser rangefinder A12 and laser rangefinder B12) ) are installed on two Z-connectors (Z-connector A110 and Z-connector B110 ) on the back of the tail, real-time monitoring of the sliding platform (sliding platform A13 and sliding platform B13 ) Moving distance perpendicular to the rolling direction.

[0056] Two sliding platforms (sliding platform A13 and sliding platform B13 ) is installed on the two convex sliding guide rails (convex sliding guide rail A14 and convex sliding guide rail B14 ) to form a sliding pair, such as Figure 7 shown.

[0057] Figure 8 Schematic diagram of the structure of a single hydraulic push rod assembly. Taking the hydraulic push rod assembly A15 as an example, it consists of a cylinder body 151 and a piston rod assembly 152.

[0058] Figure 9 This is a schematic diagram of the structure of a single piston rod assembly. To monitor the steel plate's rotation angle in real time during the steel turning process, the piston rod assembly 152 of the hydraulic push rod assembly 15 features a special structural design. The piston rod assembly 152 consists of a piston rod 152-1, a spring 152-2, a sliding block 152-3, a rotating block A 152-4, an axial positioning nut 152-5, and an angle sensor 152-6. A table 152-11 is provided at the top end of the piston rod 152-1. A hole 152-13 is drilled in the table 152-11 to connect with the spring 152-2. A milled surface 152-12 is provided on the piston rod 152-1 to engage the sliding block 152-3 and limit its circumferential rotation. An axial positioning nut 152-5 is connected to the end of the piston 152-1 to limit the axial movement of the rotating block A 152-4. The upper end surface of the rotating block A152-4 is used to install the angle sensor 152-6.

[0059] Figure 10 The diagram of the internal structure of the rotating block and the sliding body is shown in Figure 1. The sliding block 152-3 and the rotating block A152-4 are internal cylindrical cam components, and the two are relatively engaged. When the steel is required to be rotated, the two hydraulic push rod assemblies on the diagonal line give the steel plate a torque to rotate the steel plate. Taking the counterclockwise rotation of steel as an example, the working state diagram of a hydraulic push rod assembly A15 during the steel rotation process is shown in Figure 1. Figure 11 As shown, the rotating block A152-4 at the end of the hydraulic push rod assembly A15 rotates synchronously with the steel plate, and its side end surface is always in contact with the edge of the steel plate. Figure 11 (a) is the initial state; during the rotation process, if Figure 11 As shown in (b), the sliding block 152-3 is pressed down, and the spring 152-2 is compressed. After the steel is turned, the rotating block A152-4 leaves the steel plate, and the spring 152-2 rebounds and pushes the sliding block 152-3 to move upward. Due to the cylindrical cam structure inside the sliding block 152-3 and the rotating block A152-4, the rotating block A152-4 is automatically reset. Figure 11 (c).

[0060] Figure 12 The schematic diagram of a single base structure is shown in FIG. A single base 2 is composed of a baffle 21, two rolling guides (rolling guide A22 and rolling guide B22 ), and 10 rolling guide support seats (rolling guide support seat A23 and rolling guide support seat B23 , Rolling guide support seat 2 A24 and Rolling guide support seat 2 B24 , Rolling guide rail support seat three A25 and rolling guide rail support seat three B25 , Rolling guide rail support seat four A26 and rolling guide rail support seat four B26 , Rolling guide rail support seat five A27 and rolling guide rail support seat five B27 ), a base laser rangefinder 28, wherein the baffle 21 vertical support surface is welded with four positioning holes (positioning hole three A21-1 and positioning hole three B21-1 As well as positioning hole four A21-2 and positioning hole four B21-2 ), four sliding guide holes (sliding guide hole three A21-3 and sliding guide hole three B21-3 As well as sliding guide hole four A21-4 and sliding guide hole four B21-4 ), baffle 21 and 10 rolling guide support seats (rolling guide support seat A23 and rolling guide support seat B23 , Rolling guide support seat 2 A24 and Rolling guide support seat 2 B24 , Rolling guide rail support seat three A25 and rolling guide rail support seat three B25 , Rolling guide rail support seat four A26 and rolling guide rail support seat four B26 , Rolling guide rail support seat five A27 and rolling guide rail support seat five B27 ) is fixed to the side wall of the drainage channel below the steel plate conveyor roller of the medium and heavy plate production line by bolts. The base laser rangefinder 28 is fixed in front of the baffle 21 and keeps a certain distance from the side of the baffle to monitor the moving distance of the steel transfer work platform 1 in the rolling direction in real time. Two rolling guides (rolling guide A22 and rolling guide B22 ) are fixed to 10 rolling guide support seats (rolling guide support seat A23 and rolling guide support seat B23) by bolts. , Rolling guide support seat 2 A24 and Rolling guide support seat 2 B24 , Rolling guide rail support seat three A25 and rolling guide rail support seat three B25 , Rolling guide rail support seat four A26 and rolling guide rail support seat four B26 , Rolling guide rail support seat five A27 and rolling guide rail support seat five B27 ), rolling guides (rolling guides A22 and rolling guides B22 ) length is greater than half the length of the steel plate.

[0061] Figure 13 The schematic diagram of the structure of a single scissor-type hydraulic telescopic arm mechanism is shown in FIG. The single scissor-type hydraulic telescopic arm mechanism 3 is composed of a single earring-type hydraulic cylinder 31, a hydraulic cylinder bottom connection support 33, a pin shaft 1 32, a pin shaft 2 34, a rod end joint bearing 35, a piston rod head connection support seat 36, two long round steels 310, 310 , four short round steels (short round steel one A39 and short round steel one B39 As well as short round steel II A311 and short round steel II B311 ), eight scissor arms with through holes at the head, middle and tail (scissor arm A37 and scissor arm B37 , scissor arm II A38 and scissor arm II B38 , Scissor Arm Three A312 and Scissor Arm Three B312 , scissor arm four A313 and scissor arm four B313 ) Among them, scissor arm 1 A37 and scissor arm 2 A38 are arranged crosswise, and are hinged at the through hole in the middle of the scissor arm through short round steel 1 A39. Scissor arm 3 A312 and scissor arm 4 A313, scissor arm 1 B37 With scissor arm II B38 And scissor arm three B312 With scissor arm quad B313 , are all made in the same way through short round steel two A311, short round steel one B39 , short round steel B311 Articulated. Scissor arm A37, scissor arm A313, scissor arm B37 and scissor arm four B313 Through the long round steel A310, the scissor arm head is hinged, scissor arm 2 A38, scissor arm 3 A312, scissor arm 2 B38 and scissor arm three B312 Through long round steel B310 Articulated in the same way. The hydraulic cylinder bottom connection support 33 is welded to the scissor arm 2 A38 and the scissor arm 2 B38 On the inner side near the tail through hole, the piston rod head connection support seat 36 is welded to the scissor arm four A313 and the scissor arm four B313 The inner side is close to the through hole of the head. The bottom earring of the single earring type hydraulic cylinder 31 is connected to the hydraulic cylinder bottom connection support 33 through the pin shaft 1 32. The rod end joint bearing 35 is sleeved on the piston rod head of the single earring type hydraulic cylinder 31, and then connected to the piston rod head connection support seat 36 through the pin shaft 2 34, indirectly realizing the connection between the piston rod of the single earring type hydraulic cylinder 31 and the piston rod head connection support seat 36. The overall structure is as follows Figure 14 shown.

[0062] Figure 15 Schematic diagram of the connection between the scissor-type hydraulic telescopic arm and the base and the steel turning work platform, scissor arm A37 and scissor arm B37 The four sliding guide holes (sliding guide hole three A21-3 and sliding guide hole three B21-3) on the baffle 21 As well as sliding guide hole four A21-4 and sliding guide hole four B21-4 ) are connected at the tail of scissor arm 1 by round steel to form two sliding pairs, which serve as the movable end of the telescopic arm mechanism on the base 2 during operation, scissor arm 2 A38 and scissor arm 2 B38 The four positioning holes on the baffle 21 (positioning hole three A21-1 and positioning hole three B21-1 As well as positioning hole four A21-2 and positioning hole four B21-2 ) is fixed through the round steel in the through hole at the tail of the scissor arm 2, serving as the fixed end of the telescopic arm mechanism on the base 2 during operation; scissor arm 3 A312 and scissor arm 3 B312 With the four positioning holes on the L-shaped push plate 11 (positioning hole A11-2 and positioning hole B11-2 As well as positioning hole 2 A11-3 and positioning hole 2 B11-3 ) is fixed through the round steel in the through hole at the tail of the scissor arm three, which serves as the fixed end of the telescopic arm mechanism on the rotating steel working platform 1 during operation. The scissor arm four A313 and the scissor arm four B313 The four sliding guide holes (sliding guide hole A11-4 and sliding guide hole B11-4) on the L-shaped push plate 11 As well as sliding guide hole 2 A11-5 and sliding guide hole 2 B11-5 ) are connected at the end of the scissor arm through round steel to form two sliding pairs, which serve as the movable end of the telescopic arm mechanism on the steel turning work platform 1 during operation. The four roller groups on the steel turning work platform 1 (roller group A17 and roller group B17) As well as roller group 2 A18 and roller group 2 B18 ) Two rolling guide rails (rolling guide rail A22 and rolling guide rail B22) mounted on base 2 ) on the two rolling guide rails (rolling guide rail A22 and rolling guide rail B22 The expansion and contraction of the single earring hydraulic cylinder 31 drives the expansion and contraction of the entire scissor-type hydraulic telescopic arm mechanism 3 in the horizontal direction, thereby realizing the reciprocating movement of the steel turning work platform 1 in the horizontal direction.

[0063] Assume that the thickness, width and length of the medium and heavy plate before rolling are 、 and The roller diameter and roller length of the front roller are and , the distance between the two rollers is According to the rolling process requirements, the steel plate needs to rotate clockwise (or counterclockwise) in front of the machine The specific implementation process of this hydraulically driven steel plate rotating device for medium and thick plate angle rolling is as follows: Figure 16 :

[0064] Step S1: Equipment is in place. The preset distance X between the two steel work platform assemblies 1 and 4 is calculated, and the hydraulic push rod assembly is moved to the preset position.

[0065] The preset distance X is determined by the length of the steel plate L, the roller diameter d of the front roller, and the distance b between the two rollers:

[0066]

[0067] in:

[0068] : The preset distance X between the two steel turning work platforms, unit: m;

[0069] : Steel plate length, unit: m;

[0070] : roller diameter, unit: m;

[0071] : The distance between the two rollers, in m;

[0072] Taking the steel turning work platform 1, base 2 and scissor type hydraulic telescopic arm 3 as an example, the single earring type hydraulic cylinder 31 in the scissor type hydraulic telescopic arm 3 is started, and its piston rod extends to push the entire scissor type hydraulic telescopic arm 3 out. Driven by the scissor type hydraulic telescopic arm 3, the steel turning work platform 1 moves along the two rolling guides (rolling guide A22 and rolling guide B22). ) moves forward; similarly, the steel turning work platform 4, driven by the scissor-type hydraulic telescopic arm 6, moves forward relative to the steel turning work platform 1 along two rolling guides. When the distance between the steel turning work platform assembly 1 and the steel turning work platform assembly 4 reaches the preset distance X, the two single-earring hydraulic cylinders stop operating. Throughout this process, the distance traveled by the steel turning work platforms 1 and 4 is monitored in real time by a laser rangefinder.

[0073] After the above process is completed, the hydraulic push rod assembly (hydraulic push rod assembly A15 and hydraulic push rod assembly B15 ) in the rotation block (rotation block A152-4 and rotation block B15 2-4) starts to rise under the push of the hydraulic cylinder, when the laser rangefinder 2 (laser rangefinder 2 A16 and laser rangefinder 2 B16 ) detected the rotation block (rotation block A152-4 and rotation block B15 2-4) When the rising distance reaches the height h1, the rising stops. Similarly, the rotating block in the steel rotating work platform 4 also rises to the same height.

[0074] The rising distance of the rotating block as follows:

[0075]

[0076] in:

[0077] : The distance from the conveyor roller surface to the bottom surface of the base, unit: m;

[0078] : The distance from the lower end of the rotating block to the bottom of the base in the initial state, unit: m.

[0079] Step S2: Steel plate alignment. When all four rotating blocks have reached the specified height, the two horizontal hydraulic cylinders (horizontal hydraulic cylinder A19 and horizontal hydraulic cylinder B19) under the L-shaped push plate 11 in the steel work platform assembly 1 are ) starts to work synchronously, the piston rod extends, driving the sliding platform (sliding platform A13 and sliding platform B13 ) along the convex sliding guide rails (convex sliding guide rails A14 and convex sliding guide rails B14 ) slide relative to each other and are fixed on the sliding platforms (sliding platform A13 and sliding platform B13 ) on the hydraulic push rod assembly (hydraulic push rod assembly A15 and hydraulic push rod assembly B15 ) moves synchronously with it, when the hydraulic push rod assembly (hydraulic push rod assembly A15 and hydraulic push rod assembly B15 ) When the moving distance is e, the transverse hydraulic cylinder (transverse hydraulic cylinder A19 and transverse hydraulic cylinder B19 ) stops working. At the same time, the steel rotating work platform assembly 4 performs the same operation, and the steel plate is aligned. At this time, the side end faces of the rotating blocks on the four hydraulic push rod assemblies are in contact with the side faces of the steel plate.

[0080] The distance a single hydraulic push rod moves perpendicular to the rolling direction during plate centering:

[0081]

[0082] in:

[0083] : The effective distance between two hydraulic push rod assemblies on a single steel turning work platform assembly, unit: m;

[0084] : Steel plate width, unit: m.

[0085] Step S3: Steel rotation. According to the angle rolling process requirements, the steel plate needs to be rotated clockwise (or counterclockwise) in front of the machine. When the steel plate is aligned, keep the hydraulic push rod assembly A15 (or hydraulic push rod assembly B15) in the steel rotation work platform 1. ) status remains unchanged; start the hydraulic push rod assembly B15 (or hydraulic push rod assembly A15), so that the corresponding piston rod part retracts back to the initial state, and starts the transverse hydraulic cylinder B19 (or horizontal hydraulic cylinder A19), retract its piston rod and pass through the Z-shaped connector B110 (or Z-shaped connector A110) drives the sliding platform B13 (or sliding platform A13) back to the initial position. At the same time, the steel turning work platform 4 performs the opposite operation, and the rotating block C452-4 (or rotating block D45) arranged diagonally with the steel turning work platform 1 is rotated. 2-4) Keeping with the hydraulic push rod assembly, turn block D45 2-4 (or rotating block C452-4) and the hydraulic push rod assembly where it is located return to the initial position.

[0086] After the above operation is completed, the horizontal hydraulic cylinder A19 (or horizontal hydraulic cylinder B19 in the steel work platform 1) ) starts, hydraulic push rod assembly A15 (or hydraulic push rod assembly B15 ) in the transverse hydraulic cylinder A19 (or transverse hydraulic cylinder B19 ) is driven to move in the vertical rolling direction; the hydraulic cylinder in the steel work platform assembly 4 is started synchronously, so that the rotating block C452-4 (or rotating block D45 2-4) and its hydraulic push rod assembly move relative to the vertical rolling direction driven by its transverse hydraulic cylinder. The two sets of hydraulic push rod assemblies held by the steel turning work platforms 1 and 4 apply a torque to the steel plate, pushing the steel plate to start rotating. The angle sensor on the upper end surface of the rotating block measures the rotation angle of the steel plate in real time. When the angle detected by the angle sensor reaches the angle required by the process, the steel plate is rotated. When the hydraulic cylinder stops working.

[0087] During the entire steel plate rotation process, all operations of the two steel rotation work platform assemblies 1 and 4 are synchronized, including the working pressure and flow of all hydraulic cylinders.

[0088] During this process, the remaining single hydraulic push rod assembly moves a distance y:

[0089]

[0090] Where:

[0091] : The distance that the single-sided hydraulic push rod assembly pushes the steel plate to reach the target corner, in meters;

[0092] : Target steel turning angle, unit: degree.

[0093] Step S4: Steel turning is completed. The hydraulic push rod assembly is retracted and reset, the scissor-type hydraulic telescopic arm is reset, and the entire device returns to its initial state.

[0094] Step S5: rolling the steel plate. The steel plate is driven into the rolling mill by the front roller table for rolling.

[0095] Implementation Cases:

[0096] The known steel plate size, target steel turning angle and equipment parameters are as follows:

[0097] Board length , board width , plate thickness ;

[0098] Target turning angle of angle-rolled slab ;

[0099] Conveyor roller diameter , roller gap length , roller length ;

[0100] Effective distance between two hydraulic push rod assemblies on a single steel turning work platform assembly ;

[0101] Distance from conveyor roller surface to base bottom ;

[0102] In the initial state, the distance from the lower end of the rotating block to the bottom of the base .

[0103] The calculation results are as follows:

[0104]

[0105]

[0106]

[0107]

[0108] Preset distance between two steel work platform assemblies ;

[0109] Rotating block rising distance ;

[0110] The distance a single hydraulic push rod moves perpendicular to the rolling direction during the steel plate formation process ;

[0111] The distance that the single-sided hydraulic push rod assembly pushes the steel plate to reach the target corner .

[0112] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A hydraulically driven steel plate rotating device for medium and thick plate angle rolling, characterized in that: It consists of two steel turning working platforms, two sets of bases and two sets of scissor-type hydraulic telescopic arm mechanisms; the two steel turning working platforms are perpendicular to the rolling direction and arranged in parallel; the two sets of scissor-type hydraulic telescopic arm mechanisms are respectively fixed on the bases.

2. The hydraulically driven steel plate rotating device for medium and thick plate angle rolling according to claim 1 is characterized in that: The steel turning work platform consists of an L-shaped push plate, two sliding platforms, two convex sliding guide rails, two hydraulic push rod assemblies, two transverse hydraulic cylinders, two Z-shaped connectors, two nuts, four roller groups, and four laser rangefinders; the piston rod of the transverse hydraulic cylinder is extended and retracted to drive the sliding platform to move along the convex sliding guide rails along the vertical rolling direction.

3. The hydraulically driven steel plate rotating device for medium and thick plate angle rolling according to claim 2 is characterized in that: A rectangular through groove is opened in the center of the horizontal plate of the L-shaped push plate, and four positioning holes are welded on the back of the vertical plate of the L-shaped push plate, two in a group, and four sliding guide holes are also in a group of two; there is a stepped hole at the head of the Z-shaped connector and two through holes at the tail. The width of the main body of the Z-shaped connector is slightly smaller than the width of the rectangular through groove at the center of the horizontal plate of the L-shaped push plate.

4. The hydraulically driven steel plate rotating device for medium and thick plate angle rolling according to claim 3 is characterized in that: The end of the piston rod of the transverse hydraulic cylinder passes through the stepped hole at the head of the Z-type connector and is connected with the nut to form a threaded pair, thereby fixing the Z-type connector on the piston rod of the transverse hydraulic cylinder; the bolt passes through the through hole at the tail of the Z-type connector to fix the sliding platform on the Z-type connector, thereby realizing the extension and retraction of the piston rod of the transverse hydraulic cylinder to drive the sliding platform to move in the vertical rolling direction on the convex sliding guide rail.

5. The hydraulically driven steel plate rotating device for medium and thick plate angle rolling according to claim 4 is characterized in that: Two convex sliding guide rails are symmetrically fixed on both sides of the rectangular groove by bolts; two transverse hydraulic cylinders are fixed to the two ends of the bottom surface of the L-shaped push plate horizontal plate; the Z-shaped connecting piece passes through the rectangular groove on the L-shaped push plate horizontal plate, and then the transverse hydraulic cylinder is installed and matched with the sliding platform; four roller groups are fixed in pairs at the two ends of the bottom surface of the L-shaped push plate horizontal plate, and laser rangefinders are respectively installed on the back of the tail of the two Z-shaped connecting pieces to monitor the moving distance of the sliding platform in the vertical rolling direction in real time; the concave track under the two sliding platforms is installed on the two convex sliding guide rails to form a sliding pair.

6. The hydraulically driven steel plate rotating device for medium and thick plate angle rolling according to claim 5 is characterized in that: The hydraulic push rod assembly consists of a cylinder body and a piston rod assembly; the piston rod assembly consists of a piston rod, a spring, a sliding block, a rotating block, an axial positioning nut, and an angle sensor; a table is provided on the upper end of the piston rod, and a hole is drilled on the table for connection with the spring; a milling surface is provided on the piston rod to cooperate with the sliding block to limit the circumferential rotation of the sliding block; the axial positioning nut is connected to the end of the piston to limit the axial movement of the rotating block; the upper end surface of the rotating block is used to install the angle sensor.

7. The hydraulically driven steel plate rotating device for medium and thick plate angle rolling according to claim 6 is characterized in that: The sliding block and the rotating block have cylindrical cam components inside, and the two are engaged with each other; when the steel rotation operation is required, the two hydraulic push rod assemblies on the diagonal line give the steel plate a torque to rotate the steel plate.

8. The hydraulically driven steel plate rotating device for medium and thick plate angle rolling according to claim 7 is characterized in that: The base consists of a baffle, two rolling guides, 10 rolling guide support seats, and a base laser rangefinder. Four positioning holes and four sliding guide holes are welded on the vertical support surface of the baffle. The baffle and the rolling guide support seat are fixed to the side wall of the drainage channel below the steel plate conveyor roller of the medium and thick plate production line by bolts. The base laser rangefinder is fixed in front of the baffle and keeps a certain distance from the side edge of the baffle. It is used to monitor the moving distance of the steel transfer work platform in the rolling direction in real time.

9. The hydraulically driven steel plate rotating device for medium and thick plate angle rolling according to claim 8, characterized in that: The scissor-type hydraulic telescopic arm mechanism consists of a single earring hydraulic cylinder, a hydraulic cylinder bottom connection support, pin shaft 1, pin shaft 2, a rod end joint bearing, a piston rod head connection support seat, two long round steels, four short round steels, two scissor arms 1 with through holes at the head, middle and tail, two scissor arms 2 with through holes at the head, middle and tail, two scissor arms 3 with through holes at the head, middle and tail, and two scissor arms 4 with through holes at the head, middle and tail; among them, the scissor arm 1 and the scissor arm 2 are arranged crosswise, and are hinged through the short round steel 1 through hole in the middle of the scissor arm, and the scissor arm 3 and the scissor arm 4 are hinged. It is hinged by short round steel 2; scissor arm 1 and scissor arm 4 are hinged by long round steel at the through hole of the scissor arm head, and scissor arm 2 and scissor arm 3 are hinged by long round steel in the same way; the hydraulic cylinder bottom connecting support is welded on the inner side of the two scissor arms 2 near the bottom through hole, and the piston rod head connecting support seat is welded on the inner side of the two scissor arms 4 near the head through hole; the bottom earring of the single earring type hydraulic cylinder is connected to the hydraulic cylinder bottom connecting support through pin shaft 1, and the rod end joint bearing is sleeved on the head of the piston rod of the single earring type hydraulic cylinder, and then connected to the piston rod head connecting support seat through pin shaft 2, thereby indirectly realizing the connection between the piston rod of the single earring type hydraulic cylinder and the piston rod head connecting support seat.

10. The hydraulically driven steel plate rotating device for medium and thick plate angle rolling according to claim 9, characterized in that: The two scissor arms 1 are connected to the four sliding guide holes on the baffle through round steel at the through hole at the tail of the scissor arm 1 to form two sliding pairs, which serve as the movable ends of the telescopic arm mechanism on the base when working; the two scissor arms 2 are fixed to the four positioning holes on the baffle through round steel at the through hole at the tail of the scissor arm 2, which serve as the fixed ends of the telescopic arm mechanism on the base when working; the two scissor arms 3 are fixed to the four positioning holes on the L-shaped push plate through round steel at the through hole at the tail of the scissor arm 3, which serve as the fixed ends of the telescopic arm mechanism on the rotating steel working platform when working; the two scissor arms 4 are connected to the four sliding guide holes on the L-shaped push plate through round steel at the through hole at the tail of the scissor arm 4 to form two sliding pairs, which serve as the movable ends of the telescopic arm mechanism on the rotating steel working platform when working; The four roller groups on the steel turning work platform are connected to the two rolling guide rails on the base, so that the steel turning work platform can move along the rolling direction on the two rolling guide rails; the extension and retraction of the single earring hydraulic cylinder drives the horizontal extension and retraction of the entire scissor-type hydraulic telescopic arm mechanism, thereby realizing the reciprocating movement of the steel turning work platform in the horizontal direction.

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