CN111702157A - Multi-machine multi-strand continuous casting machine ladle turret - Google Patents

Abstract

A multi-machine multi-strand continuous casting machine ladle turret belongs to the technical field of continuous casting machine equipment and is used for adapting to production of multi-machine multi-strand continuous casting machines. The technical scheme is as follows: the lower end of a lower base of a rotary table is fixedly connected with a cement foundation of a ladle rotary table, a rotary support is positioned between the lower base of the rotary table and an upper base of the rotary table, a driving pinion of a driving device is meshed with outer teeth of the rotary support, a left plunger cylinder and a right plunger cylinder are respectively installed on two sides of the upper surface of the upper base of the rotary table, a left lifting arm is connected with the left plunger cylinder, a right lifting arm is connected with the right plunger cylinder, the lower ends of a front frame and a rear frame are fixed on the upper base of the rotary table, two sides of the front frame and the rear frame are respectively connected with the left lifting arm and the right lifting arm, and a hydraulic pipeline of a hydraulic slip ring is respectively. The invention can adapt to the production of a multi-machine multi-strand continuous casting machine, can prevent the ladle from tilting at any time during operation, can maintain operation during power failure or power failure, and ensures the smooth production.

Description

Multi-machine multi-strand continuous casting machine ladle turret

Technical Field

The invention relates to a ladle turret of a steel plant, which can adapt to the production of a multi-machine multi-strand continuous casting machine and belongs to the technical field of continuous casting machine equipment.

Background

The conticaster need use the ladle to cast, and the ladle turret is established in conticaster casting position top, and the ladle turret is the key equipment of conticaster, the main function: weighing, rotating, accident rotating, lifting and the like. The ladle turret can be rotated bidirectionally and continuously, and can supply molten steel to a continuous casting machine continuously and sufficiently. The method is characterized in that a ladle full of molten steel conveyed from a steelmaking converter is received, the ladle is quickly conveyed in a crossing mode and is rotated to a casting position, the molten steel in the ladle is poured into a tundish, the molten steel is poured into a crystallizer through the tundish, continuous casting is carried out, and a required casting blank is pulled out. The ladle turret can realize the quick replacement of a full ladle and an empty ladle of a steel ladle, and can realize the continuity of molten steel casting with equipment such as the steel ladle, a crystallizer and the like. The conventional ladle turret can rotate two full ladles of molten steel, can continuously supply molten steel to a continuous casting machine, and can receive full ladles of molten steel from a travelling crane at any position (high position or low position) and rotate the full ladles of molten steel to a casting position.

The development of the continuous casting machine is from three machines with three flows, four machines with four flows to five machines with five flows, six machines with six flows, even eight machines with eight flows, ten machines with ten flows and twelve machines with ten flows, and the machines and flows of the continuous casting machine are increased, so that on one hand, the capacity of a steel ladle is increased, the yield of a casting blank is improved, on the other hand, the original steel ladle rotary table cannot be used for the production of the continuous casting machine with the increased machines and flows, and the development of the steel ladle rotary table suitable for the multiple machines and multiple flows at present is imperative.

Disclosure of Invention

The invention aims to provide a multi-machine multi-strand continuous casting machine ladle turret, which can adapt to the production of multi-machine multi-strand continuous casting machines, can prevent a ladle from tilting at any time and can maintain operation in the case of power failure or power failure.

The technical scheme for solving the technical problems is as follows:

a multi-machine multi-strand continuous casting machine ladle turret comprises a left lifting arm, a right lifting arm, a front frame, a rear frame, a left plunger cylinder, a right plunger cylinder, a turntable upper base, a slewing bearing, a turntable lower base, a driving device and a hydraulic slip ring, wherein the turntable lower base is a circular cylindrical structural member formed by welding an upper end surface, a lower end surface, a middle vertical rib and a diagonal rib, the lower end surface of the turntable lower base is fixedly connected with a ladle turret cement foundation through a high-strength long bolt, the upper end surface of the turntable lower base is fixedly connected with a slewing bearing inner ring through a bolt, the turntable upper base is positioned above the slewing bearing, the turntable upper base is connected with a slewing bearing outer ring through a bolt, slewing bearing outer teeth are arranged on the outer circumference of the slewing bearing outer ring, a driving pinion of the driving device is meshed with the slewing bearing outer teeth, and the left lifting arm and the right lifting arm are positioned on, a left plunger type cylinder and a right plunger type cylinder, the hydraulic slip ring is a vertical cylinder, the lower end of the hydraulic slip ring is positioned at the lower end of the lower base of the rotary table, the hydraulic slip ring penetrates through the inner ring of the slewing bearing and is positioned at the lower part of the upper base of the rotary table, a hydraulic pipeline in the pipe well is connected with a part, which does not rotate, of the lower part of the hydraulic slip ring, the hydraulic pipeline connected with the left plunger cylinder and the right plunger cylinder is connected with a part, which rotates, of the hydraulic slip ring, and the hydraulic pipeline from the pipe well rotates together with the ladle turret through the hydraulic slip ring.

In the multi-machine multi-strand continuous casting machine ladle turret, the left lifting arm and the right lifting arm respectively consist of a front saddle, a rear saddle, a front weighing device, a rear weighing device, a front lower connecting rod, a rear lower connecting rod and a front upper connecting rod, the rear upper connecting rod, the left cross beam and the right cross beam are hinged to the left plunger cylinder and the right plunger cylinder through spherical thrust bearings below the middle portions of the left cross beam and the right cross beam.

The multi-machine multi-strand continuous casting machine ladle turret is characterized in that the slewing bearing is composed of three rows of rollers, the upper row of rollers and the lower row of rollers are horizontally arranged, the middle row of rollers is vertically arranged, and the slewing bearing is a bearing with the inner diameter of 6 meters.

The ladle turret of the multi-machine multi-strand continuous casting machine comprises a motor, a brake, a clutch, a hydraulic motor, a vertical speed reducer and a driving pinion, wherein the vertical speed reducer is a vertical double-input-shaft speed reducer, one end of the vertical speed reducer is connected with the motor, the other end of the vertical speed reducer is connected with the clutch and the hydraulic motor, the brake is further installed at one end of the motor, the driving pinion is sleeved on an output shaft of the vertical speed reducer, and the driving pinion is meshed with external teeth of a slewing bearing.

Above-mentioned multimachine multithread caster ladle turret, front frame, rear frame all are the box structure, and upper portion is the cuboid, and the lower part is great cuboid, and the centre is a trapezoidal cuboid, and the last connecting rod of left lifing arm and right lifing arm, the both ends of lower connecting rod have two holes, and downthehole slide bearing of installing has two through-holes in the upper portion cuboid of front frame and rear frame, use the round pin axle respectively with left lifing arm, the bearing of the last connecting rod of right lifing arm is connected, also have two through-holes in the lower part cuboid of front frame and rear frame, use the round pin axle respectively with left lifing arm, the bearing of the lower connecting rod of right lifing arm is connected.

Above-mentioned multimachine multithread caster ladle revolving platform, the base is the steel base that overlaps together for trapezoidal ring in cross-section on the revolving stage by two, the lower terminal surface of base passes through bolted connection together with the slewing bearing outer lane on the revolving stage, the base comprises up end, lower terminal surface, cylinder and peripheral diagonal brace under the revolving stage, the up end and the lower terminal surface of base are respectively with the perpendicular welded connection in both ends of cylinder under the revolving stage, the up end of base is connected through the bolt with slewing bearing's inner circle under the revolving stage, the lower terminal surface of base is fixed together through bolt and ladle revolving platform cement foundation under the revolving stage, the outer circumference equipartition of cylinder of base welds a plurality of diagonal braces under the revolving stage.

According to the multi-machine multi-strand continuous casting machine ladle turret, the hydraulic slip ring is composed of the mandrel, the rotary sleeve and the fixed shaft, the lower end of the fixed shaft is fixedly connected with a cement foundation of the ladle turret, the mandrel is connected to the upper end of the fixed shaft, the rotary sleeve is sleeved outside the mandrel, the fixed shaft, the mandrel and the rotary sleeve are connected with the oil hole for transporting hydraulic oil, the oil hole in the fixed shaft is connected with a hydraulic oil pipeline in a hydraulic pipeline well, and the rotary sleeve is driven by the connecting mechanism of the base on the rotary table to rotate together with the ladle.

The invention has the beneficial effects that:

the invention has a left lifting arm and a right lifting arm, each lifting arm is connected with a front frame and a rear frame through a cross beam, the lifting arms are connected with the front frame and the rear frame through bearings, plunger heads of two plunger cylinders respectively prop against the cross beams of the two lifting arms through spherical thrust bearings to drive the lifting arms to move up and down, and the design is favorable for exerting the jacking potential of the plunger cylinders; the lifting arm is designed into a parallelogram structure, so that the ladle can be always ensured to be in a horizontal ascending or horizontal descending state without inclination when the lifting arm is lifted to any angle. The vertical speed reducer adopts a dual-drive mode of the motor and the hydraulic motor, normal transmission is realized through the rotation of the motor, the vertical speed reducer and the ladle turret, accident transmission is adopted when power failure or an electric control system has problems, the accident transmission is realized through the rotation of the hydraulic motor, the vertical speed reducer and the ladle turret, the continuous operation of a ladle is ensured, and the occurrence of shutdown accidents is avoided.

The invention relates to a multi-machine multi-strand continuous casting machine ladle turret, which can adapt to the production of multi-machine multi-strand continuous casting machines, can prevent a ladle from tilting at any time during operation, can maintain operation during power failure or power failure, ensures the smooth production and avoids the occurrence of shutdown accidents.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view of the structure of the cement foundation of the ladle turret, the lower base of the turret, the upper base of the turret, the pivoting support and the driving device of FIG. 2;

FIG. 4 is a top view of FIG. 2;

FIG. 5 is a schematic view of the structure of the driving device;

FIG. 6 is a schematic structural view of the front frame;

fig. 7 is a schematic structural view of the hydraulic slip ring.

The figures are labeled as follows: a left lifting arm 1, a right lifting arm 2, a left front saddle 3, a left rear saddle 4, a right front saddle 5, a right front saddle 6, a left front weighing device 7, a left rear weighing device 8, a right front weighing device 9, a right rear weighing device 10, a left front lower connecting rod 11, a left rear lower connecting rod 12, a right front lower connecting rod 13, a right rear lower connecting rod 14, a left front upper connecting rod 15, a left rear upper connecting rod 16, a right front upper connecting rod 17, a right rear upper connecting rod 18, a left cross beam 19, a right cross beam 20, a left plunger cylinder 21, the hydraulic ladle turret hydraulic cylinder comprises a right plunger cylinder 22, a front frame 23, a rear frame 24, a driving device 25, a turret upper base 26, a turret lower base 27, a rotary support 28, rotary support outer teeth 29, a driving pinion 30, a hydraulic slip ring 31, a long bolt 32, a ladle turret cement foundation 33, a motor 34, a brake 35, a clutch 36, a hydraulic motor 37, a vertical speed reducer 38, a mandrel 39, a rotating sleeve 40 and a fixed shaft 41.

Detailed Description

The invention comprises a left lifting arm 1, a right lifting arm 2, a front frame 23, a rear frame 24, a left plunger cylinder 21, a right plunger cylinder 22, a turntable upper base 26, a slewing bearing 28, a turntable lower base 27, a driving device 25 and a hydraulic slip ring 31.

Fig. 1 and 2 show that the overall structure of the invention is as follows: the lowest part is a rotary table lower base 27, the rotary table lower base 27 is in a ring shape, and the lower end of the rotary table lower base 27 is fixedly connected with a ladle turret cement foundation 33 through a high-strength long bolt 32. The upper surface of a lower base 27 of the rotary table is fixedly connected with an inner ring of the rotary support, an upper base 26 of the rotary table is positioned above the rotary support 28, the rotary support 28 is an important large bearing for the rotation of the ladle rotary table, the upper base 26 of the rotary table is connected with an outer ring of the rotary support through a high-strength bolt, the outer circumference of the outer ring of the rotary support is provided with outer teeth 29 of the rotary support, a driving pinion 30 of a driving device 25 is meshed with the outer teeth 29 of the rotary support, the driving device 25 pushes the outer ring of the rotary support to rotate through the driving pinion 30, and the outer ring of the rotary.

Fig. 1 shows that a left lifting arm 1, a right lifting arm 2, a left plunger cylinder 21 and a right plunger cylinder 22 are respectively installed on two sides of a base 26 on a rotary table, the left lifting arm 1 is connected with the left plunger cylinder 21, and the right lifting arm 2 is connected with the right plunger cylinder 22. The front frame 23 and the rear frame 24 are respectively positioned between the left lifting arm 1 and the right lifting arm 2, the lower ends of the front frame 23 and the rear frame 24 are fixed on a base 26 on the turntable, two sides of the front frame 23 and the rear frame 24 are respectively connected with the left lifting arm 1 and the right lifting arm 2, and the left plunger cylinder 21 and the right plunger cylinder 22 respectively push the left lifting arm 1 and the right lifting arm 2 to move up and down along the front frame 23 and the rear frame 24.

Fig. 1, 2 and 4 show that the left lifting arm 1 is composed of a left front saddle 3, a left rear saddle 4, a left front weighing device 7, a left rear weighing device 8, a left front lower connecting rod 11, a left rear lower connecting rod 12, a left front upper connecting rod 15, a left rear upper connecting rod 16 and a left cross beam 19. The left front weighing device 7 is arranged on the left front saddle 3, the left rear weighing device 8 is arranged on the left rear saddle 4, the left front saddle 3 is hinged with the left side of the front frame 23 and the left front upper connecting rod 15 and the left rear lower connecting rod 11 and the left front upper connecting rod 15 are hinged with the left side of the front frame 23 and the left side of the rear frame 23 and the left rear saddle 4 is hinged with the left side of the rear frame 24 and the left rear upper connecting rod 16 and the left cross beam 19 is arranged at the two ends of the left front upper connecting rod 15 and the left rear upper connecting rod 16, and the lower part of the middle part of the left cross beam 19 is hinged with the left plunger cylinder.

The right lifting arm 2 is composed of a right front saddle 5, a right front saddle 6, a right front weighing device 9, a right rear weighing device 10, a right front lower connecting rod 13, a right rear lower connecting rod 14, a right front upper connecting rod 17, a right rear upper connecting rod 18 and a right cross beam 20. The connection mode of all parts of the right lifting arm 2 is the same as that of the left lifting arm 1.

Fig. 6 shows that the front frame 23 and the rear frame 24 are both box structures, the upper part is a rectangular parallelepiped, the lower part is a larger rectangular parallelepiped, and the middle part is a trapezoidal rectangular parallelepiped. Two holes are arranged at two ends of the left front lower connecting rod 11, the left rear lower connecting rod 12, the right front lower connecting rod 13, the right rear lower connecting rod 14, the left front upper connecting rod 15, the left rear upper connecting rod 16, the right front upper connecting rod 17 and the right rear upper connecting rod 18, and sliding bearings are arranged in the holes. Two through holes are formed in upper cuboids of the front frame 23 and the rear frame 24, and are respectively connected with bearings of a left front upper connecting rod 15, a left rear upper connecting rod 16, a right front upper connecting rod 17 and a right rear upper connecting rod 18 of the left lifting arm 1 and the right lifting arm 2 through pin shafts. The lower cuboids of the front frame 23 and the rear frame 24 are also provided with two through holes which are respectively connected with bearings of the left front lower connecting rod 11, the left rear lower connecting rod 12, the right front lower connecting rod 13 and the right rear lower connecting rod 14 of the left lifting arm 1 and the right lifting arm 2 by using pin shafts.

Fig. 3 shows that the hydraulic slip ring 23 is a vertical cylinder, the lower end of the hydraulic slip ring 23 is located at the lower end of the lower base 20 of the turntable, the hydraulic slip ring 23 passes through the inner ring of the rotary support and is located at the lower part of the upper base 19 of the turntable, and the hydraulic pipelines of the hydraulic slip ring 23 are respectively connected with the left plunger cylinder 17 and the right plunger cylinder 18.

Fig. 7 shows that the hydraulic slip ring 31 is composed of a mandrel 39, a rotating sleeve 40 and a fixed shaft 41. The lower end of a fixed shaft 41 is fixedly connected with a revolving platform cement foundation 33, a mandrel 39 is connected with the upper end of the fixed shaft, a rotating sleeve 40 is sleeved outside the mandrel, the fixed shaft 41, the mandrel 39 and the rotating sleeve 40 are provided with oil holes for transporting hydraulic oil to be connected, the oil holes in the fixed shaft 41 are connected with a hydraulic oil pipeline in a hydraulic pipeline well, the rotating sleeve 40 is driven by a connecting mechanism of a base on a revolving platform to rotate together with the revolving platform of the ladle, and the hydraulic oil pipeline rotates together with the revolving platform of the ladle.

Fig. 5 shows that the driving device 25 includes a driving pinion 30, a motor 34, a brake 35, a clutch 36, a hydraulic motor 37, and a vertical speed reducer 38. The vertical reduction gear 38 is a vertical double-input shaft reduction gear, one end of the vertical reduction gear 38 is connected with the motor 34, the other end is connected with the clutch 36 and the hydraulic motor 37, one end of the motor 34 is also provided with the brake 35, the driving pinion 30 is sleeved on the output shaft of the vertical reduction gear 38, and the driving pinion 30 is meshed with the slewing bearing external teeth 29. The vertical speed reducer 38 adopts a dual-drive mode of the motor 34 and the hydraulic motor 37, normal transmission is realized through the motor 34, the vertical speed reducer 38 and the ladle turret to rotate, accident transmission is adopted when power failure or an electric control system has a problem, and the accident transmission is realized through the hydraulic motor 37, the vertical speed reducer 38 and the ladle turret to rotate, so that the continuous operation of a ladle is ensured, and the occurrence of shutdown accidents is avoided.

Fig. 2 and 3 show that the turntable upper base 26 is a steel base formed by stacking two circular rings with trapezoidal sections, and the lower end surface of the turntable upper base 26 is connected with the outer ring of the slewing bearing 28 through a bolt. When the vertical reduction gear 38 drives the slewing bearing outer teeth 29 of the slewing bearing 28 through the drive pinion 30, the ladle turret above the base 26 on the turret rotates together.

Fig. 2 and 3 show that the lower base 27 of the turntable is composed of an upper end surface, a lower end surface, a cylinder body and peripheral diagonal ribs, the upper end surface and the lower end surface of the lower base 27 of the turntable are respectively connected with two ends of the cylinder body in a vertical welding mode, the upper end surface of the lower base 27 of the turntable is connected with an inner ring of a slewing bearing 28 through bolts, the lower end surface of the lower base 27 of the turntable is fixed with a cement foundation 33 of a ladle turret through bolts, and the outer circumference of the cylinder body of the lower base 27 of the turntable is uniformly welded with a plurality of diagonal ribs.

The working process of the invention is as follows:

receiving a steel ladle:

when the motor 34 drives the vertical speed reducer 38 and the driving pinion 30 to rotate, the driving pinion 30 drives the slewing bearing 28 and the whole ladle slewing body to rotate through gear engagement, so that the left lifting arm 1 is in a steel receiving position, the plunger rod of the left plunger cylinder 21 is retracted, and the left lifting arm 1 is in a low position. The left lifting arm 1 receives a ladle filled with molten steel in a steel receiving cross-over, and after the ladle poured in the pouring cross-over right lifting arm 2 is poured, a post operator operates a plunger rod of the left plunger cylinder 21 to extend out, so that the left lifting arm 1 is in a high position. The right plunger cylinder 22 is operated by the post operator to extend the plunger rod so that the right lifting arm 2 is in the high position.

Replacing the ladle:

when a post operator operates the motor 34 to drive the vertical speed reducer 38 and the driving pinion 30 to rotate, the driving pinion 30 drives the slewing bearing 28 and the whole ladle revolving body to rotate through gear engagement, when the left lifting arm 1 reaches a pouring position, the brake 35 brakes, the post operator operates the plunger rod of the left plunger cylinder 21 to retract, so that the left lifting arm 1 is at a low position, and a ladle on the left lifting arm 1 is subjected to low-position steel pouring. A post operator operates the plunger rod of the right plunger cylinder 22 to retract, so that the right lifting arm 2 is at a low position, an empty ladle is conveniently hoisted and removed by a steel receiving overhead crane, and meanwhile, the right lifting arm 2 is in a steel waiting state.

And (3) an accident state:

when a post operator operates the hydraulic motor 37 to drive the vertical speed reducer 38 and the driving pinion 30 to rotate, the driving pinion 30 drives the slewing bearing 28 and the whole ladle slewing body to rotate through gear engagement, so that the lifting arm of the ladle slewing table reaches a specified position.

One embodiment of the invention is as follows:

the length of the front saddle and the rear saddle is 4260mm, the width of the front saddle and the rear saddle is 400mm, and the height of the front saddle and the rear saddle is 3520 mm;

the front weighing device and the rear weighing device are 2290mm in length, 260mm in width and 610mm in height;

the length of the front lower connecting rod and the rear lower connecting rod is 3390 mm; 350mm high and 100mm wide

The diameters of the front upper connecting rod and the rear upper connecting rod are 500mm in height, 120mm in width and 2840mm in length;

the length of the left beam and the right beam is 6810mm, the width of the left beam and the right beam is 400mm, and the height of the left beam and the right beam is 900 mm;

the length of the front frame and the rear frame is 2120mm, the width of the front frame and the rear frame is 500mm, and the height of the front frame and the rear frame is 2550 mm;

the diameter of the base on the rotary table is 4645mm, and the height of the base on the rotary table is 1020 mm;

the diameter of the lower base of the rotary table is 4250 mm, and the height of the lower base of the rotary table is 2100 mm;

the type of the slewing bearing is 132.45.4170.102.04.03F1, the diameter is 4170mm, and the height is 255 mm;

the model of the hydraulic slip ring is an MEPH 2300-823 channel;

the model of the motor is YZP280M-6, and 75KW 985 r/min;

the model of the brake is YWK 315-800:

the type of the clutch is YLH 40/55:

the hydraulic motor is A2F107W6.1P:

the model of the vertical speed reducer is GHZY 45-112.

The left plunger cylinder and the right plunger cylinder are custom-made parts; the specifications are as follows:

。

Claims (7)

1. the utility model provides a multimachine multithread caster ladle turret which characterized in that: the steel ladle rotary table comprises a left lifting arm (1), a right lifting arm (2), a front frame (23), a rear frame (24), a left plunger cylinder (21), a right plunger cylinder (22), an upper rotary table base (26), a rotary support (28), a lower rotary table base (27), a driving device (25) and a hydraulic slip ring (31), wherein the lower rotary table base (26) is a circular cylindrical structural member, the lower end of the lower rotary table base (27) is fixedly connected with a cement foundation (33) of the steel ladle rotary table through a high-strength long bolt (32), the upper end face of the lower rotary table base (27) is fixedly connected with an inner ring of the rotary support through a bolt, the upper rotary table base (26) is positioned above the rotary support (28), the upper rotary table base (26) is connected with an outer ring of the rotary support through a bolt, outer rotary support teeth (29) are arranged on the outer circumference of the outer ring of the rotary support, a driving pinion (30) of, the left lifting arm (1) and the right lifting arm (2) are positioned on two sides of a base (26) on the rotary table, a left plunger cylinder (21) and a right plunger cylinder (22) are respectively arranged on two sides of the base (26) on the rotary table, the left lifting arm (1) is connected with the left plunger cylinder (21), the right lifting arm (2) is connected with the right plunger cylinder (22), a front frame (23) and a rear frame (24) are respectively positioned between the left lifting arm (1) and the right lifting arm (2), the lower ends of the front frame (23) and the rear frame (24) are fixed on the base (26) on the rotary table, the two sides of the front frame (23) and the rear frame (24) are respectively connected with the left lifting arm (1) and the right lifting arm (2), the rotary table of the hydraulic slip ring (31) is an upright cylinder, the lower end of the hydraulic slip ring (31) is positioned at the lower end of a lower base (27), and the hydraulic slip ring (31) penetrates through the rotary support and is positioned at, the hydraulic pipeline in the pipe shaft is connected with the part of the lower part of the hydraulic slip ring (31) which does not rotate, and the hydraulic pipeline connected with the left plunger cylinder (21) and the right plunger cylinder (22) is connected with the part of the hydraulic slip ring (31) which rotates.

2. The multi-machine multi-strand casting machine ladle turret according to claim 1, wherein: the left lifting arm (1) and the right lifting arm (2) respectively consist of a front saddle, a rear saddle, a front weighing device, a rear weighing device, a front lower connecting rod, a rear lower connecting rod, a front upper connecting rod, a rear upper connecting rod, a left cross beam (19) and a right cross beam (20), the front weighing device and the rear weighing device of the two lifting arms are respectively arranged on the front saddle and the rear saddle, the front saddles of the two lifting arms are respectively hinged with the upper part and the lower part of the two sides of a front frame (23) through the front upper connecting rod and the front lower connecting rod through sliding bearings, the rear saddles of the two lifting arms are respectively hinged with the upper part and the lower part of the two sides of a rear frame (24) through the rear upper connecting rod and the rear lower connecting rod, the two ends of the left cross beam (19) of the left lifting arm (1) and the two ends of the right cross beam (20) of the right lifting arm (2) are respectively hinged with the front upper connecting rod, the rear upper connecting rod and the front, The rear upper connecting rod is connected, and the lower part of the middle parts of the left beam (19) and the right beam (20) is hinged with the left plunger cylinder (21) and the right plunger cylinder (22) through spherical thrust bearings respectively.

3. The multi-machine multi-strand casting machine ladle turret according to claim 1, wherein: the slewing bearing (28) consists of three rows of rollers, the upper row of rollers and the lower row of rollers are horizontally arranged, the middle row of rollers is vertically arranged, and the slewing bearing (28) is a bearing with the inner diameter of 6 meters.

4. The multi-machine multi-strand casting machine ladle turret according to claim 1, wherein: the driving device (25) comprises a motor (34), a brake (35), a clutch (36), a hydraulic motor (37), a vertical speed reducer (38) and a driving pinion (30), wherein the vertical speed reducer (38) is a vertical double-input-shaft speed reducer, one end of the vertical speed reducer (38) is connected with the motor (34), the other end of the vertical speed reducer is connected with the clutch (36) and the hydraulic motor (37), the brake (35) is further installed at one end of the motor (34), the driving pinion (30) is sleeved on an output shaft of the vertical speed reducer (38), and the driving pinion (30) is meshed with the external rotary support teeth (29).

5. The multi-machine multi-strand casting machine ladle turret according to claim 1, wherein: preceding frame (23), back frame (24) all are the box structure, upper portion is the cuboid, the lower part is great cuboid, the centre is a trapezoidal cuboid, the last connecting rod of left lifing arm (1) and right lifing arm (2), there are two holes at the both ends of lower connecting rod, downthehole slide bearing of installing, there are two through-holes in the upper portion cuboid of preceding frame (23) and back frame (24), use the round pin axle to be connected with left lifing arm (1), the bearing of the last connecting rod of right lifing arm (2) respectively, also have two through-holes in the lower part cuboid of preceding frame (23) and back frame (24), use the round pin axle to be connected with left lifing arm (1), the bearing of the lower connecting rod of right lifing arm (2) respectively.

6. The multi-machine multi-strand casting machine ladle turret according to claim 1, wherein: the upper base (26) of the rotary table is a steel base formed by overlapping two circular rings with trapezoidal sections, the lower end face of the upper base (26) of the rotary table is connected with the outer ring of the slewing bearing (28) through a bolt, the lower base (27) of the rotary table is composed of an upper end face, a lower end face, a cylinder and peripheral diagonal ribs, the upper end face and the lower end face of the lower base (27) of the rotary table are respectively connected with two ends of the cylinder in a vertical welding mode, the upper end face of the lower base (27) of the rotary table is connected with the inner ring of the slewing bearing (28) through a bolt, the lower end face of the lower base (27) of the rotary table is fixed with a steel ladle slewing table cement foundation (33) through a bolt, and a plurality of diagonal ribs are uniformly distributed and.

7. The multi-machine multi-strand casting machine ladle turret according to claim 1, wherein: the hydraulic slip ring (31) is composed of a mandrel (39), a rotating sleeve (40) and a fixed shaft (41), the lower end of the fixed shaft (41) is fixedly connected with a cement foundation (33) of the ladle revolving platform, the mandrel (39) is connected to the upper end of the fixed shaft (41), the rotating sleeve (40) is sleeved outside the mandrel (39), the fixed shaft (41), the mandrel (39) and the rotating sleeve (40) are connected through oil holes for transporting hydraulic oil, the oil holes in the fixed shaft (41) are connected with a hydraulic oil pipeline in a hydraulic pipeline well, and the rotating sleeve (40) is driven by a connecting mechanism of a base (26) on the revolving platform to rotate together with the ladle revolving platform.

Images