Position-adjustable hydraulic shears for continuous-casting billets

Abstract

The application discloses a position-adjustable hydraulic shear for continuous-casting steel billets and belongs to the technical field of steel billet shearing. The position-adjustable hydraulic shear for continuous-casting steel billets comprises a front-and-back translation device of a guide rail and a left-and-right translation device, and the front-and-back translation device of the guide rail is provided with the left-and-right translation device at the bottom of the front end. In the application, the left-and-right translation device and a height adjusting structure are further arranged on the basis of the front-and-back translation device of the guide rail, the movement of the shear blade box in different directions can be realized, the position adjustment of the shear blade box is facilitated, the shear blade cutting direction can be controlled and adjusted according to different steel billet sizes to be perpendicular to the diagonal of the cross section of the steel billet, the shear blade loss is reduced, the shear blade shearing is more rapid, the conveying direction of the aligned steel billet is adjusted, the front and rear ends of the steel billet can be pressed when the shear blade shears the steel billet through the setting of the shearing adjusting and pressing device, the lifting height of the steel billet in the shearing process is reduced, and the shearing section quality of the steel billet is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of billet shearing, more particularly to a position-adjustable hydraulic shear for continuous casting machine. BACKGROUND

[0002] The hydraulic shear for continuous casting machine is a device for quickly cutting the head during continuous casting, mainly used for small square billet continuous casting machine, and has high efficiency and stability than the traditional flame shear cutting machine, and has been widely used. The current commonly used shear seat of the billet hydraulic shear adopts a fixed upper shear blade, and the lower shear blade is driven by a hydraulic cylinder to shear. The structure is commonly arranged at 45 degrees, and the shear blade is a flat blade, which is convenient for shearing. The billet conveying port of the continuous casting machine billet hydraulic shear must be larger than the size of the billet in design, in order to facilitate the billet to pass through the body of the hydraulic shear. The traditional continuous casting machine billet hydraulic shear usually maintains a certain height, and the height is not adjustable. Because of such design, when the hydraulic shear shears the billet, the upper and lower shear blades need to be moved close to the billet first, and then the shearing can be performed. This is easy to cause the billet to lift by a certain amplitude, which reduces the quality of the sheared cross section of the billet. In addition, when the upper and lower shear blades shear the billet, the shearing speed is the fastest and the wear of the shear blade is the smallest when the tangential direction is perpendicular to the diagonal of the cross section of the billet. However, when shearing different sizes of continuous casting billets, since most of the continuous casting machine billet hydraulic shears are fixedly installed in the upper and lower shear frames, the tangential direction of the upper and lower shear blades is fixed. Since the size of the billet changes, the tangential direction of the upper and lower shear blades is no longer 90 degrees perpendicular to the diagonal of the cross section of the billet, so that the shear blade shears the billet is not as fast and convenient as before, and the wear of the shear blade is increased. SUMMARY

[0003] A position-adjustable hydraulic shear for continuous casting machine, comprising a guide rail forward and backward translation device and a left and right translation device, the guide rail forward and backward translation device is provided with a left and right translation device at the bottom of the front end, the left and right translation device is connected with a vertically downward moving frame at the lower end, the moving frame is connected with a shear blade box, and a movable conveying port is connected to the middle position of the front face of the shear blade box;

[0004] Preferably, a fixed output port is connected to the middle position of the rear face of the shear blade box;

[0005] Preferably, two groups of moving rods are fixedly arranged on the front and rear faces of the shear blade box;

[0006] Preferably, a shear blade angle adjusting device is installed on the side face of the shear blade box, and a rotatable shear blade hydraulic device is connected to the other end of the shear blade angle adjusting device and penetrates the shear blade box;

[0007] Preferably, upper and lower staggered shear adjusting and pressing devices are arranged in the middle of the inner cavity of the shear blade box.

[0008] Preferably, the movable conveying port comprises a port outer frame, the top end of the port outer frame is connected with a movable slide rod, the movable slide rod is movably connected with a fixed slide plate, the fixed slide plate is installed on the front face of the shear blade box, the top end of the movable slide rod is vertically connected with a movable rack, and the other end of the movable rack is engagedly connected with a linkage gear.

[0009] Preferably, the movable frame comprises vertical supports and a connecting top plate, the vertical supports are vertically installed at the lower ends of the four corners of the connecting top plate, the vertical supports are provided with two groups of slide grooves in the upper and lower portions, the movable rods are penetratingly connected in the slide grooves, the connecting top plate is provided with fixed rail strips on the two sides of the upper surface, the connecting top plate is provided with two rack gears on the upper surface, a hydraulic suspension cylinder is installed at the lower end of the connecting top plate, and the telescopic end of the hydraulic suspension cylinder is connected with the top of the shear blade box.

[0010] Preferably, the guide rail front and rear translation device comprises a fixed plate and a movable guide rail, the fixed plate is fixedly installed on the upper surface of the movable guide rail, the fixed plate is fixedly installed with a translation hydraulic cylinder, the top end of the translation hydraulic cylinder is provided with a connecting block, and the connecting block is connected with left and right translation devices.

[0011] Preferably, the left and right translation devices comprise a movable slide plate installed at the lower end of the connecting block, the movable slide plate is connected with movable pulleys on the two sides, the bottom surface of the movable slide plate is provided with a drive motor, the lower end of the movable slide plate is connected with two groups of tubular guide rails at the four corners, the tubular guide rails are penetratingly connected with the fixed rail strips, and the gear on the drive motor is engagedly connected with the rack gears.

[0012] Preferably, the shear blade angle adjusting device comprises a servo motor installed on the side of the shear blade box and two groups of annular racks installed on the upper and lower portions of the side of the shear blade box, one end of each of the annular racks is connected with two drive gears, the other end of each of the annular racks is connected with a rotatable shear blade hydraulic device, the drive gears are connected with rotating shafts, the fixed pulleys are installed in the middle of the rotating shafts, the fixed pulleys are connected with belts, one end of the rotating shaft located at the upper portion is connected with the servo motor outside, and the other end of the rotating shaft located at the upper portion is connected with a linkage gear.

[0013] Preferably, the rotatable shear blade hydraulic device comprises two groups of shear blade hydraulic pumps installed in the upper and lower portions of the inner cavity of the shear blade box in a staggered and symmetrical manner, the pump cylinder bottom surface of each of the shear blade hydraulic pumps is provided with a moving shaft, the moving shaft is movably connected in the notch of an arc-shaped slide plate, the two ends of the arc-shaped slide plate are fixedly installed on the inner cavity wall of the shear blade box, the two sides of the periphery of each of the shear blade hydraulic pumps are connected with drive secondary gears, the drive secondary gears are connected with the other end of the annular racks, the top end of the telescopic rod of the shear blade hydraulic pump located at the upper portion of the inner cavity of the shear blade box is connected with an upper shear blade, and the top end of the telescopic rod of the shear blade hydraulic pump located at the lower portion of the inner cavity of the shear blade box is connected with a lower shear blade.

[0014] Preferably, the shearing adjustment pressing device comprises upper and lower groups of pressing impellers fixedly connected at the bottom end of a support frame, a fixed motor installed at the upper end of the support frame, a gear set connected to the fixed motor, a linkage shaft penetratingly connected to the gear set, a fixed rod sleeved on the linkage shaft, the fixed rod being fixedly installed on the upper surface of the support frame, tapered gears arranged at the two ends of the linkage shaft, threaded rods respectively connected at the two ends of the support frame, rotating gears arranged at the top ends of the threaded rods and meshingly connected with the tapered gears at the two ends of the linkage shaft, and fixed blocks arranged at the lower ends of the threaded rods and fixedly installed on the inner wall of the shear blade box.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] 1) In the present application, the hydraulic shears are provided with left-right translation devices and height adjustment structures in addition to the front-rear translation devices, the driving motor is operated to drive the gear on the motor to rotate, the gear rotation is meshingly connected with the strip gears on the upper surface of the connecting top plate, the gear rotation moves the tubular guide rail at the top end of the moving frame in the fixed rail strip, thereby enabling the moving frame to translate left and right, and two groups of moving rods are fixedly arranged on the front and rear surfaces of the shear blade box, the moving rods are penetratingly connected in the sliding grooves, the hydraulic suspension cylinder installed at the lower end of the connecting top plate provides hydraulic power, and the whole shear blade box moves up and down along the sliding grooves on the vertical legs, so that the shear blade box can move in different directions, such as front-rear, left-right and up-down, which facilitates the corresponding position adjustment of the shear blade box when the shear blade moves up and down for shearing and the angle is adjusted.

[0017] 2) In the present application, when the size of the continuous casting billet changes, the up-down shear blades that can rotate with the shear blade hydraulic pump are designed, so that the shearing direction of the up-down shear blades can always be perpendicular to the diagonal of the cross section of the billet, the wear of the shear blades is reduced, the shearing of the shear blades is faster, and when the shear blade hydraulic pump is rotated and adjusted, the movable conveying port is moved and adjusted left and right by the linkage gear, so that the conveying direction of the billet can be aligned, the shearing adaptability of the hydraulic shears is effectively improved, the wear of the shear blades is reduced, and the linkage adjustment of the shear blade angle adjustment device and the movable conveying port is realized.

[0018] 3) In this invention, by setting a shearing adjustment pressing device, when the steel billet enters the inner cavity of the shearing box from the movable conveying port, the fixed motor drives the linkage shaft to rotate. The bevel gears set at both ends of the linkage shaft will also rotate in the same direction, thereby driving the rotating gear to rotate. This causes the threaded rods connected to both ends of the support frame to rotate and move along the fixed block installed on the inner wall of the shearing box. The rotation of the threaded rods will drive the pressing impeller to move closer to the steel billet. On the one hand, it can play a certain role in fixing the steel billet when it moves. On the other hand, when the upper shear blade cooperates with the lower shear blade to shear the steel billet, it can press the front and rear ends of the steel billet, thereby reducing the lifting height of the steel billet during the shearing process. Reducing the lifting height is beneficial to improving the quality of the sheared cross section of the steel billet. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall front structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall rear structure of the present invention;

[0021] Figure 3 This is an enlarged schematic diagram of the multi-group moving device structure of the guide rail of the present invention;

[0022] Figure 4 This is an enlarged schematic diagram of the movable delivery port structure of the present invention;

[0023] Figure 5 This is an enlarged schematic diagram of the shear blade angle adjustment device of the present invention;

[0024] Figure 6 This is an enlarged schematic diagram of the shearing adjustment and pressing device of the present invention.

[0025] Explanation of the figure: 1, shear blade box; 2, movable conveying port; 201, port outer frame; 202, moving slide rod; 203, fixed slide plate; 204, moving strip gear; 205, linkage gear; 3, moving frame; 301, vertical foot; 302, sliding groove; 303, hydraulic suspension cylinder; 304, connecting top plate; 305, fixed rail strip; 306, strip gear; 4, front and rear translation device of guide rail; 401, fixed plate; 402, translation hydraulic cylinder; 403, moving guide rail; 404, connecting block; 5, left and right translation device; 501, moving slide plate; 502, drive motor; 503, tubular guide rail; 504, moving pulley; 6, fixed output port; 7, shear blade angle adjusting device; 701, servo motor; 702, ring rack; 703, drive gear; 704, rotating shaft; 705, fixed pulley; 706, belt; 8, rotatable shear hydraulic device; 801, moving shaft; 802, shear hydraulic pump; 803, arc-shaped slide plate; 804, drive secondary gear; 805, upper shear blade; 806, lower shear blade; 9, shear adjusting and pressing device; 901, fixed motor; 902, gear set; 903, linkage shaft; 904, bevel gear; 905, rotating gear; 906, threaded rod; 907, fixed block; 908, support frame; 909, pressing impeller; 9010, fixed rod; 10, moving rod. DETAILED DESCRIPTION

[0026] Embodiment: For please see Figures 1-6 A position-adjustable hydraulic shear for continuous casting machine billets, comprising a front and rear translation device of guide rail 4 and a left and right translation device 5, the front and rear translation device of guide rail 4 is provided with the left and right translation device 5 at the bottom of the front end, the left and right translation device 5 is connected with a vertically downward moving frame 3 at the lower end, the moving frame 3 is connected with a shear blade box 1, and the shear blade box 1 is connected with a movable conveying port 2 at the middle position of the front face; the shear blade box 1 is connected with a fixed output port 6 at the middle position of the rear face; two groups of moving rods 10 are fixedly arranged on the front and rear faces of the shear blade box 1; a shear blade angle adjusting device 7 is installed on the side face of the shear blade box 1, and the other end of the shear blade angle adjusting device 7 penetrates through the shear blade box 1 and is connected with a rotatable shear hydraulic device 8; the shear blade box 1 is provided with upper and lower staggered and symmetrical shear adjusting and pressing devices 9 at the middle positions of the two sides in the cavity.

[0027] The moving frame 3 comprises a vertical foot 301 and a connecting top plate 304, the vertical foot 301 is vertically installed at the lower end of the four corners of the connecting top plate 304, the vertical foot 301 is provided with two groups of sliding grooves 302, and the moving rods 10 penetrate through and are connected in the sliding grooves 302, the connecting top plate 304 is provided with fixed rail strips 305 on the upper surface of the two sides, and the connecting top plate 304 is provided with two strip gears 306 on the upper surface, and the connecting top plate 304 is provided with a hydraulic suspension cylinder 303 at the lower end, and the extension end of the hydraulic suspension cylinder 303 is connected to the top of the shear blade box 1.

[0028] The guide rail front and rear translation device 4 includes a fixed plate 401 and a moving guide rail 403, the fixed plate 401 is fixedly installed on the upper surface of the moving guide rail 403, the fixed plate 401 is fixedly installed with a translation hydraulic cylinder 402, the top end of the translation hydraulic cylinder 402 is provided with a connecting block 404, and the connecting block 404 is connected with a left and right translation device 5.

[0029] The left and right translation device 5 includes a moving slide plate 501 installed at the lower end of the connecting block 404, the moving slide plate 501 is connected with a moving pulley 504 on both sides, the bottom surface of the moving slide plate 501 is provided with a driving motor 502, and the lower end of the moving slide plate 501 is connected with two groups of tubular guide rails 503 at four corners, and the tubular guide rails 503 penetrate through the fixed track strip 305, and the gear on the driving motor 502 is engaged with the strip gear 306.

[0030] Specifically, when the translation hydraulic cylinder 402 works, the translation hydraulic cylinder 402 drives the moving slide plate 501 connected with the top end connecting block 404 to move, at this time, since the moving pulleys 504 connected on both sides of the moving slide plate 501 are movably connected in the concave groove of the moving guide rail 403, the moving slide plate 501 can slide along the moving guide rail 403, so as to drive the whole shear blade box 1 to translate; when the whole shear blade box 1 needs to move in the left and right directions of the moving guide rail 403, the driving motor 502 needs to be started, the driving motor 502 works to drive the gear on the motor to rotate, since the gear is engaged with the strip gear 306 on the upper surface of the connecting top plate 304, the rotation of the gear will make the tubular guide rail 503 at the top end of the moving frame 3 move in the fixed track strip 305, so as to make the moving frame 3 translate left and right, finally, when the height position of the whole shear blade box 1 needs to be adjusted, since the shear blade box 1 is fixedly provided with two groups of moving rods 10 on the front and back surfaces, and the moving rods 10 penetrate through and are connected in the sliding groove 302, the hydraulic suspension cylinder 303 installed at the lower end of the connecting top plate 304 provides hydraulic power, so that the whole shear blade box 1 moves up and down along the sliding groove 302 on the vertical foot stand 301, so that the movement of the shear blade box 1 in different directions of front and back, left and right and up and down can be realized, the adjustment of the shear blade box 1 is facilitated, the steel billet can be kept flush with the movable conveying port 2 when the steel billet is conveyed into the shear blade box 1, and the shearing is facilitated.

[0031] The movable conveying port 2 includes a port outer frame 201, the moving slide rod 202 is connected at the upper end of the port outer frame 201, the moving slide rod 202 is movably connected in the fixed slide plate 203, the fixed slide plate 203 is installed on the front surface of the shear blade box 1, and the moving slide rod 202 is vertically connected with a moving strip gear 204 at the top end, and the other end of the moving strip gear 204 is engaged with the linkage gear 205.

[0032] The shear blade angle adjusting device 7 comprises a servo motor 701 installed on the side of the shear blade box 1 and two sets of annular racks 702 installed on the upper and lower sides of the shear blade box 1. One end of each annular rack 702 is connected with a driving gear 703, and the other end of each annular rack 702 is connected with a rotatable shear blade hydraulic device 8. The driving gears 703 are connected with a rotating shaft 704, and a fixed pulley 705 is installed in the middle of the rotating shaft 704. The fixed pulley 705 is connected with a belt 706, and the servo motor 701 is connected with the upper end of the rotating shaft 704. The other end of the rotating shaft 704 is connected with a linkage gear 205.

[0033] The rotatable shear blade hydraulic device 8 comprises two staggered and symmetrical shear blade hydraulic pumps 802 installed in the inner cavity of the shear blade box 1. The pump cylinder bottom surface of each shear blade hydraulic pump 802 is provided with a moving shaft 801, and the moving shaft 801 is movably connected in the notch of an arc-shaped sliding plate 803. The two ends of the arc-shaped sliding plate 803 are fixedly installed on the inner cavity wall of the shear blade box 1. The outer periphery of each shear blade hydraulic pump 802 is connected with a driving secondary gear 804, and the driving secondary gear 804 is connected with the other end of the annular rack 702. The top end of the telescopic rod of the shear blade hydraulic pump 802 located at the upper position of the inner cavity of the shear blade box 1 is connected with an upper shear blade 805, and the top end of the telescopic rod of the shear blade hydraulic pump 802 located at the lower position of the inner cavity of the shear blade box 1 is connected with a lower shear blade 806.

[0034] Specifically, the servo motor 701 works to rotate the rotating shaft 704 located above. After the rotating shaft 704 rotates, the two drive gears 703 and the fixed pulley 705 connected to the rotating shaft 704 follow the rotation. The rotation of the drive gears 703 drives the upper annular rack 702 to rotate. The fixed pulley 705 is connected with the belt 706, and the rotation of the fixed pulley 705 drives the lower rotating shaft 704 and the two drive gears 703 on the lower rotating shaft 704 to rotate, thereby rotating the lower annular rack 702. The rotation of the upper and lower annular racks 702 drives the drive pinion gears 804 connected to the two sides of the shearing blade hydraulic pump 802 to rotate, so that the shearing blade hydraulic pump 802 connected with the upper shearing blade 805 and the lower shearing blade 806 rotates. During the rotation of the shearing blade hydraulic pump 802, the moving shaft 801 at the bottom of the pump cylinder of the shearing blade hydraulic pump 802 is arranged in the arc-shaped sliding plate 803, so that the shearing blade hydraulic pump 802 rotates in the same plane, thereby adjusting the tangential angle of the upper shearing blade 805 and the lower shearing blade 806, making the tangential angle of the upper and lower shearing blades perpendicular to the diagonal of the cross section of the billet, reducing the loss of the shearing blade, and making the shearing of the shearing blade more efficient. The number of teeth of the annular rack 702, the drive gear 703 and the drive pinion gear 804 is fixed, and the power of the servo motor 701 is fixed, that is, for every rotation of the servo motor 701, the number of rotations of the annular rack 702, the drive gear 703 and the drive pinion gear 804 is also fixed. Therefore, the rotation angle of the shearing blade hydraulic pump 802 connected with the drive pinion gear 804 is also fixed. The diagonal angle of the cross section of the billet of different sizes can be calculated manually in advance. That is, according to the diagonal angle of the cross section of the billet calculated manually in advance, the rotation number of the servo motor 701 is controlled by controlling the starting time of the servo motor 701, so as to control and adjust the rotation angle of the upper and lower shearing blades. In this way, different sizes of billets can be corresponded to, so that the tangential angle of the upper and lower shearing blades can be maintained at 90 degrees with the diagonal of the cross section of the billet. In addition, when the shearing blade hydraulic pump 802 adjusts the tangential angle of the upper shearing blade 805 and the lower shearing blade 806, the shearing position of the two will change, so that the position of the movable conveying port 2 needs to be adjusted, and the position of the shearing blade box 1 also needs to be adjusted. The position adjustment of the shearing blade box 1 needs to rely on the movement of the shearing blade box 1 in the left and right directions of the moving guide rail 403. The position adjustment of the movable conveying port 2 relies on the rotation of the rotating shaft 704 located above, the rotation of the linkage gear 205 connected to the top end of the rotating shaft 704 drives the movement of the movement strip teeth 204, and the movement strip teeth 204 are connected with the movement slide rod 202 and the port outer frame 201, so that the movable conveying port 2 can move in the left and right directions, thereby aligning the conveying direction of the billet.

[0035] The shearing adjustment pressing device 9 comprises two groups of pressing impellers 909 fixedly connected at the bottom end of a support frame 908, a fixed motor 901 is installed at the upper end of the support frame 908, a gear set 902 is connected to the fixed motor 901, the gear set 902 comprises two gears with the same number of teeth, the fixed motor 901 is connected to the lower gear of the gear set 902, the upper gear of the gear set 902 is connected with a linkage shaft 903, the linkage shaft 903 is connected with a fixed rod 9010, the fixed rod 9010 is fixedly installed on the upper surface of the support frame 908, so that the linkage shaft 903 can rotate stably on the fixed rod 9010, forming a linkage whole, and the linkage shaft 903 is provided with a bevel gear 904 at both ends, the support frame 908 is connected with a threaded rod 906 at both ends, the threaded rod 906 is provided with a rotating gear 905 at the top end, and the rotating gear 905 is connected with the bevel gear 904 at both ends of the linkage shaft 903, and the threaded rod 906 is provided with a fixed block 907 at the lower end, and the fixed block 907 is fixedly installed on the inner wall of the blade box 1.

[0036] Specifically, when the billet enters the inner cavity of the blade box 1 from the movable conveying port 2, the fixed motor 901 drives the gear set 902 and the linkage shaft 903 connected with the gear set 902 to rotate, the bevel gears 904 at both ends of the linkage shaft 903 also rotate in the same direction to drive the rotating gears 905 to rotate, so that the threaded rods 906 connected at both ends of the support frame 908 rotate, and the screw directions of the two threaded rods 906 are opposite, the threaded rods 906 rotate along the fixed block 907, the inner wall of the fixed block 907 is provided with an internal thread corresponding to the screw direction of the threaded rod 906, and since the fixed block 907 is fixedly installed on the inner wall of the blade box 1, the rotation of the threaded rod 906 drives the pressing impeller 909 to move close to the billet, which can fix the billet during movement, and can press the front and rear ends of the billet during shearing of the billet by the upper blade 805 and the lower blade 806, thereby reducing the lifting height during shearing of the billet, and reducing the lifting height is beneficial to improving the shearing surface quality of the billet.

[0037] The working principle of the present application is as follows:

[0038] Firstly, before the continuous casting billet is transported, the hydraulic shears need to be moved along the moving guide rail 403 to the corresponding position, at this time, the translation hydraulic cylinder 402 is started to work, which will drive the moving slide plate 501 connected with the top end connecting block 404 to move, at this time, the moving slide plate 501 can translate along the moving guide rail 403 because the moving pulleys 504 connected on both sides of the moving slide plate 501 are movably connected in the concave groove of the moving guide rail 403, thereby driving the overall shear blade box 1 to translate, and then the hydraulic suspension cylinder 303 installed at the lower end of the connecting top plate 304 provides hydraulic power to make the overall shear blade box 1 move up and down along the sliding groove 302 on the vertical foot 301 to adjust the height, and the shear hydraulic pump 802 pushes the upper shear blade 805 to move down and keep flush with the upper port of the movable conveying port 2;

[0039] When the size of the continuous casting billet changes, the servo motor 701 is started, and the working rotation will drive the rotating shaft 704 located above to rotate, after the rotating shaft 704 rotates, the two drive gears 703 and the fixed pulley 705 connected on the rotating shaft 704 will follow the rotation, the rotation of the drive gear 703 drives the rotation of the upper annular rack 702, the fixed pulley 705 is connected with the belt 706, and the rotation of the fixed pulley 705 will drive the rotation of the lower rotating shaft 704 and the two drive gears 703 on the lower rotating shaft 704, thereby rotating the lower annular rack 702, and the rotation of the upper and lower annular racks 702 will drive the rotation of the drive secondary gear 804 connected on both sides of the shear hydraulic pump 802, so that the shear hydraulic pump 802 connected with the upper shear blade 805 and the lower shear blade 806 can rotate, during the rotation of the shear hydraulic pump 802, because the moving shaft 801 at the bottom of the pump cylinder of the shear hydraulic pump 802 is arranged in the arc-shaped slide plate 803, the shear hydraulic pump 802 maintains rotation in the same plane, and according to the diagonal angle of the cross section of the billet calculated in advance by the artificial, the opening time of the servo motor 701 can be controlled to control the rotation angle of the upper and lower shear blades, so as to correspond to different billet sizes, so that the tangential angle of the upper and lower shear blades and the diagonal line of the cross section of the billet can be maintained at 90 degrees, and at the same time, the shearing direction of the upper and lower shear blades can always be perpendicular to the diagonal line of the cross section of the billet;

[0040] In addition, when the shear blade hydraulic pump 802 rotates to adjust the tangential angle of the upper shear blade 805 and the lower shear blade 806, the shearing positions of the two shear blades will change, so that the position of the movable conveying port 2 needs to be adjusted, and the position of the shear blade box 1 needs to be adjusted. The position adjustment of the movable conveying port 2 needs to start the driving motor 502, and the driving motor 502 works to drive the gear on the motor to rotate. Since the gear is meshed with the strip-shaped gear 306 on the upper surface of the top plate 304, the rotation of the gear will make the tubular guide rail 503 at the top end of the moving frame 3 move in the fixed rail strip 305, so that the moving frame 3 translates left and right, and the position adjustment of the movable conveying port 2 relies on the rotation of the rotating shaft 704 located above, the rotation of the connecting gear 205 connected at the top end of the rotating shaft 704 drives the moving strip teeth 204 to move, and the moving strip teeth 204 are connected with the moving slide rod 202 and the port outer frame 201, so that the movable conveying port 2 can move in the left and right directions, thereby aligning the conveying direction of the steel billet.

[0041] When the steel billet enters the inner cavity of the shear blade box 1 from the movable conveying port 2, the fixed motor 901 works to drive the gear set 902 and the connecting shaft 903 penetratingly connected on the gear set 902 to rotate, and the tapered gears 904 arranged at both ends of the connecting shaft 903 also rotate in the same direction to drive the rotating gear 905 to rotate, so as to rotate the threaded rods 906 connected at both ends of the support frame 908, and the screw directions of the two threaded rods 906 are opposite. The threaded rods 906 will rotate along the fixed block 907, and the inner threads corresponding to the screw directions of the threaded rods 906 are arranged on the inner wall of the fixed block 907, and since the fixed block 907 is fixedly installed on the inner cavity wall of the shear blade box 1, the rotation of the threaded rods 906 will drive the pressing impeller 909 to move close to the steel billet.

[0042] Finally, when the upper shear blade 805 cooperates with the lower shear blade 806 to shear the steel billet, the two groups of pressing impellers 909 can press the front and rear ends of the steel billet, so as to reduce the lifting height of the steel billet in the shearing process, and the reduction of the lifting height is beneficial to improve the shearing section quality of the steel billet.

[0043] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A position-adjustable hydraulic shear for continuous-casting billets, comprising a forward-and-backward translation device (4) and a left-and-right translation device (5), characterized in that: The front end bottom of the guide rail front and rear translation device (4) is provided with left and right translation devices (5), the lower end of the left and right translation devices (5) is connected with a vertically downward moving frame (3), the moving frame (3) is connected with a shear blade box (1), the front middle position of the shear blade box (1) is connected with a movable conveying port (2); The rear middle position of the shear blade box (1) is connected with a fixed output port (6); Two groups of moving rods (10) are fixedly arranged on the front and rear surfaces of the shear blade box (1); A shear blade angle adjusting device (7) is mounted on the side surface of the shear blade box (1), the other end of the shear blade angle adjusting device (7) penetrates the shear blade box (1) and is connected with a rotatable shear blade hydraulic device (8); Shear adjusting and pressing devices (9) are arranged in the inner cavity of the shear blade box (1) and are symmetrically staggered up and down; The movable conveying port (2) comprises a port outer frame (201), the upper end of the port outer frame (201) is connected with a moving slide rod (202), the moving slide rod (202) is movably connected in a fixed slide plate (203), the fixed slide plate (203) is mounted on the front surface of the shear blade box (1), and the top end of the moving slide rod (202) is vertically connected with a moving strip gear (204), the other end of the moving strip gear (204) is meshingly connected with a linkage gear (205); The moving frame (3) comprises vertical supports (301) and a connecting top plate (304), the vertical supports (301) are vertically mounted at the lower ends of the four corners of the connecting top plate (304), the vertical supports (301) are provided with two groups of slide grooves (302) in an up-down direction, the moving rods (10) penetrate and are connected in the slide grooves (302), the upper surface of the connecting top plate (304) is provided with fixed rail strips (305) on both sides, the upper surface of the connecting top plate (304) is provided with two strip gears (306), and the lower end of the connecting top plate (304) is provided with a hydraulic suspension cylinder (303), and the extension end of the hydraulic suspension cylinder (303) is connected to the top of the shear blade box (1); The guide rail front and rear translation device (4) comprises a fixed plate (401) and a moving guide rail (403), the fixed plate (401) is fixedly mounted on the upper surface of the moving guide rail (403), the fixed plate (401) is fixedly provided with a translation hydraulic cylinder (402), the top end of the translation hydraulic cylinder (402) is provided with a connecting block (404), and the connecting block (404) is connected with the left and right translation devices (5); The left and right translation devices (5) comprise a moving slide plate (501) connected to the lower end of the connecting block (404), the moving slide plate (501) is connected with moving pulleys (504) on both sides, the bottom surface of the moving slide plate (501) is provided with a driving motor (502), the lower end of the moving slide plate (501) is connected with two groups of tubular guide rails (503) at four corners, the tubular guide rails (503) penetrate and are connected with the fixed rail strips (305), and the gear on the driving motor (502) is meshingly connected with the strip gears (306). The shear blade angle adjusting device (7) comprises a servo motor (701) mounted on the side of the shear blade box (1) and two groups of annular racks (702) mounted on the upper and lower sides of the shear blade box (1), one end of the annular rack (702) is respectively connected with two driving gears (703), the other end of the annular rack (702) is connected with a rotatable shear blade hydraulic device (8), the driving gear (703) is connected on a rotating shaft (704), a fixed pulley (705) is mounted in the middle of the rotating shaft (704), a belt (706) is connected on the fixed pulley (705), one end of the rotating shaft (704) is connected with a servo motor (701) outside, and the other end of the rotating shaft (704) is connected with a linkage gear (205) above.

2. A position-adjustable hydraulic shears for continuous casting billets according to claim 1, characterized in that: The rotatable shear blade hydraulic device (8) comprises two staggered and symmetrical shear blade hydraulic pumps (802) mounted in the inner cavity of the shear blade box (1), a moving shaft (801) is arranged on the bottom surface of the pump cylinder of the shear blade hydraulic pump (802), the moving shaft (801) is movably connected in the notch of an arc-shaped sliding plate (803), the arc-shaped sliding plate (803) is fixedly installed on the inner cavity wall of the shear blade box (1), a driving secondary gear (804) is connected on the periphery of the shear blade hydraulic pump (802), the driving secondary gear (804) is connected on the other end of the annular rack (702), the top end of the telescopic rod of the shear blade hydraulic pump (802) located above the inner cavity of the shear blade box (1) is connected with an upper shear blade (805), and the top end of the telescopic rod of the shear blade hydraulic pump (802) located below the inner cavity of the shear blade box (1) is connected with a lower shear blade (806).

3. A position-adjustable hydraulic shears for continuous casting billets according to claim 1, characterized in that: The shear adjusting pressing device (9) comprises two groups of pressing impellers (909) arranged above and below, the pressing impellers (909) are fixedly connected on the bottom end of a support frame (908), a fixed motor (901) is mounted on the upper end of the support frame (908), the fixed motor (901) is connected with a gear set (902), a linkage shaft (903) is connected through the gear set (902), a fixed rod (9010) is sleeved on the linkage shaft (903), the fixed rod (9010) is fixedly installed on the upper surface of the support frame (908), tapered gears (904) are arranged on the two ends of the linkage shaft (903), threaded rods (906) are connected on the two ends of the support frame (908), rotating gears (905) are arranged on the top ends of the threaded rods (906), the rotating gears (905) are meshingly connected with the tapered gears (904) on the two ends of the linkage shaft (903), fixed blocks (907) are arranged on the lower ends of the threaded rods (906), and the fixed blocks (907) are fixedly installed on the inner cavity wall of the shear blade box (1).

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