A hydraulic vibration table for the crystallizer of a large square billet continuous casting machine

Abstract

The present invention relates to a hydraulic vibration table for a crystallizer of a large square billet continuous casting machine, and belongs to the technical field of metallurgical machinery. The technical scheme of the present invention is: an upper transmission frame (3) and a lower transmission frame (4) are installed between a fixed frame (1) and a movable frame (2); a right air actuator (7) and a left air actuator (8) are also installed between the fixed frame (1) and the movable frame (2); a right eccentric device (5) and a left eccentric device (6) are installed on the right and left sides of a crossbeam (20) connected to two side arms in the middle of the fixed frame (1), and the right eccentric device (5) and the left eccentric device (6) have the same structure and function. The beneficial effect of the present invention is that the problem of the deflection of the hydraulic vibration table of the crystallizer of the continuous casting machine is solved by adopting two sets of eccentric devices, and the transmission frame between the fixed frame and the movable frame is connected, which is stable, firm, highly reliable, and not prone to failure.

Description

Technical Field

[0001] The invention relates to a hydraulic vibration table of a crystallizer of a large square billet continuous casting machine, belonging to the technical field of metallurgical machinery. Background Art

[0002] The advantages of the crystallizer hydraulic vibration table are reliability and flexibility. The required vibration mode can be selected according to the casting conditions. For this reason, many steel companies have launched crystallizer hydraulic vibration tables in the production of continuous casting machines. The following problems were found in the production process.

[0003] 1. Leaf springs are used as vibrating components in the hydraulic vibrating table of the large square billet crystallizer. After a long period of use, the leaf springs will fatigue and deform, which will cause the hydraulic vibrating table of the crystallizer to work unsteadily and affect the normal steel production of the continuous casting machine.

[0004] 2. The use of hydraulic vibration table in large square billet crystallizer is prone to sway, which affects the steel drawing speed of the crystallizer.

[0005] 3. The overall frame of the hydraulic vibration table of the large square billet crystallizer is an open structure. After steel leakage during the production process, the molten steel is easy to damage the parts of the hydraulic vibration table of the crystallizer.

[0006] These problems existing in the traditional crystallizer hydraulic vibration table not only affect the promotion of the crystallizer hydraulic vibration table, but also affect the quality and output of the continuous casting machine. Summary of the invention

[0007] The purpose of the present invention is to provide a hydraulic vibration table for the crystallizer of a large square billet continuous casting machine. The problem of the swing of the hydraulic vibration table of the crystallizer of the continuous casting machine is solved by adopting two sets of eccentric devices. The transmission frame between the fixed frame and the movable frame is connected. The present invention is stable, firm, highly reliable, and not prone to failure, which effectively solves the above-mentioned problems existing in the background technology.

[0008] The technical solution of the present invention is: a hydraulic vibration table for a crystallizer of a large square billet continuous casting machine, comprising a fixed frame, a movable frame, an upper transmission stand, a lower transmission stand, a right eccentric device, a left eccentric device, a right air actuator, a left air actuator, a servo cylinder and a crystallizer, wherein the fixed frame is fixed to a reinforced concrete foundation through a rear base and a front base; the lower side of the movable frame is hinged to the servo cylinder, and the crystallizer is installed on the upper working surface of the movable frame; the upper transmission stand and the lower transmission stand are installed between the fixed frame and the movable frame; the right air actuator and the left air actuator are also installed between the fixed frame and the movable frame; the right eccentric device and the left eccentric device are installed on the right and left sides of a crossbeam connected to the two side arms in the middle of the fixed frame, and the structure and function of the right eccentric device and the left eccentric device are the same.

[0009] The lower side of the movable frame is hinged with the upper earring of the servo cylinder through the upper base of the servo cylinder.

[0010] The upper transmission platform and the lower transmission platform are legs similar to the shape of a stretcher, and there are eight legs in total. The eight legs are hinged together with the fixed frame and the movable frame through eight sets of bearings, and the structure is the same;

[0011] The outrigger is a long square steel structure with a transmission bearing installed in the middle. An inner support plate and an outer support plate of the fixed frame are provided at corresponding positions of the fixed frame. There are holes at corresponding positions. A fixing sleeve is installed on the outer support plate of the fixed frame. The stepped shaft passes through the fixing sleeve, the transmission bearing and the inner support plate of the fixed frame on the outer support plate of the fixed frame, so as to realize the hinge connection of the outrigger with the outer support plate and the inner support plate of the fixed frame through the transmission bearing.

[0012] The right air actuator and the left air actuator are gas springs, into which 0.5 MPa compressed air is introduced.

[0013] The right eccentric device comprises a right fixing assembly, a right eccentric shaft, a right guide wheel, a locking plate and a balancing plate. The right eccentric shaft is fixed to the crossbeam through the fixing assembly. A locking plate is installed at the outward end of the right eccentric shaft, which is used to lock the right eccentric shaft through bolts after adjusting the circumferential eccentric position of the right eccentric shaft. A right guide wheel is installed at the other end of the right eccentric shaft, and a right guide wheel bearing is installed between the right guide wheel and the right eccentric shaft. Two balancing plates are installed on both sides of the right guide wheel, and the two balancing plates are installed on the movable frame through bolts. When the servo cylinder drives the movable frame to vibrate up and down, the right guide wheel will roll on the two balancing plates, thereby limiting the left and right swing of the crystallizer vibration table.

[0014] The beneficial effects of the present invention are as follows: the problem of the swing of the hydraulic vibration table of the continuous casting machine crystallizer is solved by adopting two sets of eccentric devices, and the transmission frame between the fixed frame and the movable frame is connected, which is stable, firm, highly reliable and not prone to failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the present invention;

[0016] Figure 2 is a top view of the present invention;

[0017] Figure 3 It is the DD view of the present invention;

[0018] Figure 4 yes Figure 3 K-direction view;

[0019] Figure 5 It is the FF view of the present invention;

[0020] Figure 6 This is the AA view of the present invention;

[0021] Figure 7 It is the BB view of the present invention;

[0022] Figure 8 It is an S-direction view of the present invention;

[0023] Fig. 9 It is a three-dimensional diagram of the appearance of the present invention;

[0024] Fig.10 It is the on-site installation diagram of the present invention;

[0025] The markings in the figure are as follows: fixed frame 1, movable frame 2, upper transmission gantry 3, lower transmission gantry 4, right eccentric device 5, left eccentric device 6, right air actuator 7, left air actuator 8, right guide wheel 9, right guide wheel bearing 10, right eccentric shaft 11, right fixed assembly 12, balance plate 13, servo cylinder 14, servo cylinder upper base 15, servo cylinder lower base 16, rear base 17, front base 18, locking plate 19, crossbeam 20, transmission bearing 21, stepped shaft 22, fixed frame inner support plate 23, fixed sleeve 24, fixed frame outer support plate 25, crystallizer 26. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the invention implementation cases clearer, the technical solutions in the implementation cases of the present invention will be clearly and completely described below in conjunction with the drawings in the implementation cases. Obviously, the implementation cases described are only a small part of the implementation cases of the present invention, rather than all the implementation cases. Based on the implementation cases in the present invention, all other implementation cases obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] A hydraulic vibration table for a crystallizer of a large square billet continuous casting machine comprises a fixed frame 1, a movable frame 2, an upper transmission platform 3, a lower transmission platform 4, a right eccentric device 5, a left eccentric device 6, a right air actuator 7, a left air actuator 8, a servo cylinder 14 and a crystallizer 26, wherein the fixed frame 1 is fixed to a reinforced concrete foundation through a rear base 17 and a front base 18; the lower side of the movable frame 2 is hinged to the servo cylinder, and the crystallizer 26 is mounted on the upper working surface of the movable frame 2; the upper transmission platform 3 and the lower transmission platform 4 are mounted between the fixed frame 1 and the movable frame 2; the right air actuator 7 and the left air actuator 8 are also mounted between the fixed frame 1 and the movable frame 2; the right eccentric device 5 and the left eccentric device 6 are mounted on the right and left sides of a crossbeam 20 connected to the two side arms in the middle of the fixed frame 1, and the right eccentric device 5 and the left eccentric device 6 have the same structure and function.

[0028] The bottom of the movable frame 2 is hinged to the earring on the servo cylinder 14 through the servo cylinder upper base 15

[0029] The upper transmission platform 3 and the lower transmission platform 4 are legs similar to the shape of a stretcher, and there are eight of them in total. The eight legs are hinged together with the fixed frame 1 and the movable frame 2 through eight sets of bearings, and the structure is the same;

[0030] The support leg is a long square steel structure with a transmission bearing 21 installed in the middle. The corresponding positions of the fixed frame 1 are provided with a fixed frame inner support plate 23 and a fixed frame outer support plate 25. There are holes at the corresponding positions. A fixed sleeve 24 is installed on the fixed frame outer support plate 25. The stepped shaft 22 passes through the fixed sleeve 24, the transmission bearing 21 and the fixed frame inner support plate 23 on the fixed frame outer support plate 25, so that the support leg is hinged with the fixed frame outer support plate 25 and the fixed frame inner support plate 23 through the transmission bearing 21.

[0031] The right air actuator 7 and the left air actuator 8 are gas springs, into which 0.5 MPa compressed air is introduced.

[0032] The right eccentric device 5 includes a right fixing assembly 12, a right eccentric shaft 11, a right guide wheel 9, a locking plate 19 and a balancing plate 13. The right eccentric shaft 11 is fixed to the crossbeam 20 through the fixing assembly 12. A locking plate 19 is installed at the outward end of the right eccentric shaft 11, which is used to lock the right eccentric shaft 11 by bolts after adjusting the circumferential eccentric position of the right eccentric shaft 11; a right guide wheel 9 is installed at the other end of the right eccentric shaft 11, and a right guide wheel bearing 10 is installed between the right guide wheel 9 and the right eccentric shaft 11. Two balancing plates 13 are installed on both sides of the right guide wheel 9, and the two balancing plates 13 are installed on the movable frame 2 by bolts. When the servo cylinder 14 drives the movable frame 2 to vibrate up and down, the right guide wheel 9 will roll on the two balancing plates 13, thereby limiting the left and right swing of the crystallizer vibration table.

[0033] In practical applications, the fixed frame 1 is fixed on a reinforced concrete foundation through a rear base 17 and a front base 18 and is a fixed frame of the crystallizer hydraulic vibration table.

[0034] The bottom of the movable frame 2 is hinged to the upper earring of the servo cylinder 14 through the upper base 15 of the servo cylinder, and the crystallizer 26 is installed on the upper working surface of the movable frame 2 through bolts.

[0035] An upper transmission gantry 3 and a lower transmission gantry 4 are installed between the fixed frame 1 and the movable frame 2. The upper transmission gantry 3 and the lower transmission gantry 4 are similar in shape to a stretcher, and eight legs are hinged together with the fixed frame 1 and the movable frame 2 through eight sets of bearings. The structure in which the eight legs are hinged together with the movable frame 1 and the movable frame 2 through eight sets of bearings is the same, and now an example is taken to explain that one leg of the upper transmission gantry 3 is hinged together with the movable frame 1 and the movable frame 2 through a bearing. The legs on the upper transmission gantry 3 are long square steel structures with a transmission bearing 21 installed in the middle. The corresponding positions of the fixed frame 1 are provided with a fixed frame inner support plate 23 and a fixed frame outer support plate 25, and there are holes at the corresponding positions. A fixed sleeve 24 is installed on the fixed frame outer support plate 25. The stepped shaft 22 passes through the fixed sleeve 24 on the fixed frame outer support plate 25, the transmission bearing 21 on the legs of the upper transmission gantry 3, and the fixed frame inner support plate 23, so that the legs of the upper transmission gantry 3 are hinged with the fixed frame outer support plate 25 and the fixed frame inner support plate 23 through the transmission bearing 21.

[0036] A right air actuator 7 and a left air actuator 8 are installed between the fixed frame 1 and the movable frame 2 for buffering when the vibration table is working. A right eccentric device 5 and a left eccentric device 6 are installed between the fixed frame 1 and the movable frame 2 to limit the swing of the hydraulic vibration table of the continuous casting machine crystallizer in the left and right directions.

[0037] The right air actuator 7 and the left air actuator 8 are gas springs, into which 0.5 MPa compressed air is introduced.

[0038] The right eccentric device 5 and the left eccentric device 6 are installed in the cross beam 20 connected to the two side arms in the middle of the fixed frame 1. The right eccentric device 5 and the left eccentric device 6 have the same structure and function and are installed on the right and left sides of the middle of the hydraulic vibration table of the continuous casting machine crystallizer. The right eccentric device 5 is taken as an example to illustrate that the right eccentric device 5 includes a right fixed component 12, a right eccentric shaft 11, a right guide wheel 9, a locking plate 19 and a balance plate 13. The right eccentric shaft 11 is fixed to the cross beam 20 through the fixed component 12, and a locking plate 19 is installed at the outward end of the right eccentric shaft 11, which is used to lock the right eccentric shaft 11 through bolts after adjusting the circumferential eccentric position of the right eccentric shaft 11. A right guide wheel 9 is installed at the other end of the right eccentric shaft 11, and a right guide wheel bearing 10 is installed between the right guide wheel 9 and the right eccentric shaft 11. Two balance plates 13 are installed on both sides of the right guide wheel 9. The two balance plates 13 are installed on the movable frame 2 by bolts. When the servo cylinder 14 drives the movable frame 2 to vibrate up and down, the right guide wheel 9 will roll on the two balance plates 13, thereby limiting the left and right swing of the crystallizer vibration table.

[0039] The workflow of the present invention is as follows.

[0040] Preparation steps: Installation and debugging are completed according to the installation specifications, the cooling water pipeline is connected and the water pressure test is completed, the lubrication system has been turned on for lubrication, the hydraulic oil pipe connected to the servo cylinder 14 has been connected and debugged, and the crystallizer selected according to production needs has been installed on the upper working surface of the movable frame 2.

[0041] Production steps: The operator sets the parameters according to the process requirements of the continuous casting machine, and controls the servo cylinder 14 through the computer program and the hydraulic system to drive the movable frame 2 and the crystallizer 26 thereon to reciprocate according to the designed vibration curve to complete the molten steel shelling work.

[0042] Stopping steps: the operator presses the "stop pouring" button, the hydraulic vibration table of the crystallizer of the large square billet continuous casting machine stops vibrating, and the servo cylinder 14 returns to the initial position before vibration.

Claims

1. A hydraulic vibration table for a bloom continuous casting machine, characterized in that: The invention comprises a fixed frame (1), a movable frame (2), an upper transmission frame (3), a lower transmission frame (4), a right eccentric device (5), a left eccentric device (6), a right air actuator (7), a left air actuator (8), a servo cylinder (14) and a crystallizer (26), wherein the fixed frame (1) is fixed on a reinforced concrete foundation via a rear base (17) and a front base (18); the lower side of the movable frame (2) is hinged to the servo cylinder, and the crystallizer (26) is mounted on the upper working surface of the movable frame (2); the upper transmission frame (3) and the lower transmission frame (4) are mounted between the fixed frame (1) and the movable frame (2); the right air actuator (7) and the left air actuator (8) are also mounted between the fixed frame (1) and the movable frame (2); the right eccentric device (5) and the left eccentric device (6) are mounted on the right and left sides of a crossbeam (20) connected to two side arms in the middle of the fixed frame (1), and the right eccentric device (5) and the left eccentric device (6) have the same structure and function; The upper transmission platform (3) and the lower transmission platform (4) are leg structures, and there are eight of them in total. The eight legs are hinged together by eight sets of bearings to form a fixed frame (1) and a movable frame (2). The structures are the same. The support leg is a long square steel structure, with a transmission bearing (21) installed in the middle. A fixed frame inner support plate (23) and a fixed frame outer support plate (25) are provided at corresponding positions of the fixed frame (1). There are holes at corresponding positions. A fixed sleeve (24) is installed on the fixed frame outer support plate (25). The stepped shaft (22) passes through the fixed sleeve (24), the transmission bearing (21) and the fixed frame inner support plate (23) on the fixed frame outer support plate (25), so that the support leg is hinged with the fixed frame outer support plate (25) and the fixed frame inner support plate (23) through the transmission bearing (21); The right air actuator (7) and the left air actuator (8) are gas springs into which 0.5 MPa compressed air is introduced; The right eccentric device (5) comprises a right fixing assembly (12), a right eccentric shaft (11), a right guide wheel (9), a locking plate (19) and a balancing plate (13); the right eccentric shaft (11) is fixed to the crossbeam (20) via the fixing assembly (12); a locking plate (19) is installed at one end of the right eccentric shaft (11) facing outwards, and is used to lock the right eccentric shaft (11) by means of bolts after the circumferential eccentric position of the right eccentric shaft (11) is adjusted; the other end of the right eccentric shaft (11) is fixed to the crossbeam (20) via the fixing assembly (12); A right guide wheel (9) is installed at one end, a right guide wheel bearing (10) is installed between the right guide wheel (9) and the right eccentric shaft (11), two balance plates (13) are installed on both sides of the right guide wheel (9), and the two balance plates (13) are installed on the movable frame (2) by bolts. When the servo cylinder (14) drives the movable frame (2) to vibrate up and down, the right guide wheel (9) will roll on the two balance plates (13), thereby limiting the left and right swing of the crystallizer vibration table.

2. The bloom continuous casting machine mold hydraulic vibration table according to claim 1, characterized in that: The movable frame (2) is hingedly connected to the upper earring of the servo cylinder (14) through the upper base (15) of the servo cylinder.

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