Lifting type ladle turret with ladle fed from side face

Abstract

The utility model provides a lifting type steel ladle turret capable of feeding a ladle from a side surface, which comprises a fixed base, a slewing driving device arranged on the fixed base, a first gear movably connected with the slewing driving device, a slewing bearing movably connected with the first gear, and a slewing lifting component movably connected with the slewing bearing, the rotation driving device provides driving force for the rotation lifting assembly through the first gear and the rotation bearing. And the rotary lifting assembly is used for driving the steel ladle to lift and rotate under the action of the rotary driving device so as to realize side feeding of the steel ladle. The steel ladle hoisting device can solve the problem of limitation of the existing steel ladle hoisting mode to the rotary table for ladle feeding.

Description

Technical Field

[0001] This utility model relates to the field of continuous casting technology for steel billets in the iron and steel metallurgical industry, to a continuous casting machine production line, and particularly to a lifting ladle rotary table with side-feed ladle in a continuous casting machine production line. Background Technology

[0002] The ladle turret is the most widely used equipment in modern continuous casting technology for transporting and supporting ladles for casting. It is usually located between the columns of the molten steel receiving bay and the casting bay in a steelmaking continuous casting workshop. A crane on one side of the molten steel receiving bay places the ladle on the turret, and the turret rotates to stop the ladle above the tundish. The empty ladle, after casting, can be rotated back to the molten steel receiving bay and lifted away by an overhead crane.

[0003] Currently, most continuous casting workshops in China employ a layout where the casting flow centerline of the continuous casting machine is perpendicular to the direction of the steel receiving overhead crane. The ladle enters in the direction of the casting flow, and the fork of the ladle turret also enters in the direction of the casting flow. However, during the current continuous casting machine retrofitting process, due to workshop layout considerations, the ladle needs to be entered perpendicular to the casting flow direction. Specifically, the ladle must enter from the side of the ladle turret fork, a requirement that conventional ladle turret structures cannot meet. Furthermore, the ladle turret requires a lifting function to facilitate the use of a protective sleeve around the bottom of the ladle, enabling protective casting between the ladle and the tundish below.

[0004] Therefore, a side-entry lifting ladle turntable is needed to enable continuous casting machine production in the aforementioned special plant layout. Utility Model Content

[0005] In view of the above problems, the purpose of this utility model is to provide a side-entry lifting ladle turntable to solve the limitation of the existing ladle operation and hoisting method to the turntable.

[0006] This utility model provides a side-entry lifting ladle rotary table, comprising: a fixed base, a rotary drive device disposed on the fixed base, a first gear movably connected to the rotary drive device, a rotary bearing movably connected to the first gear, and a rotary lifting assembly movably connected to the rotary bearing.

[0007] The rotary drive device provides driving force to the rotary lifting assembly through the first gear and the rotary bearing;

[0008] The rotary lifting assembly is used to drive the ladle to lift and rotate under the action of the rotary drive device, so as to realize the side loading of the ladle.

[0009] Preferably, the slewing bearing includes an internal gear ring and an external gear ring, wherein,

[0010] The internal gear ring is movably connected to the first gear, and the external gear ring is connected to the rotary lifting assembly.

[0011] Preferably, the rotary lifting assembly includes: a turntable body connected to the external gear ring; an upper connecting rod and a lower connecting rod movably connected to the upper and lower parts of the turntable body; a fork arm movably connected to the upper connecting rod and the lower connecting rod; and a lifting hydraulic cylinder disposed on the turntable body, wherein the ladle is disposed on the fork arm.

[0012] The lifting hydraulic cylinder is movably connected to the upper connecting rod. The lifting hydraulic cylinder drives the upper connecting rod to rotate, and the fork arm drives the ladle to move up and down under the action of the lifting hydraulic cylinder and the upper connecting rod.

[0013] Preferably, one end of the upper connecting rod is hinged to the upper part of the turntable body via a pin, and the other end is hinged to the upper part of the fork arm via a pin.

[0014] One end of the lower connecting rod is hinged to the lower part of the turntable body via a pin, and the other end is hinged to the lower part of the fork arm via a pin.

[0015] The upper connecting rod, the turntable, the lower connecting rod, and the fork arm are sequentially hinged to form a four-bar linkage lifting structure.

[0016] Preferably, the bottom of the lifting hydraulic cylinder is movably connected to the turntable body, the top of the lifting hydraulic cylinder is hinged to the upper connecting rod, and the ladle moves up and down under the action of the lifting hydraulic cylinder through the four-bar lifting structure.

[0017] Preferably, the four-bar lifting structure is used to provide a stable force for lifting the ladle.

[0018] Preferably, the ladle rotates alternately between the receiving position and the casting position via the turntable.

[0019] Preferably, the opening of the fork arm faces perpendicular to the casting flow direction, and the ladle is fed from the side of the receiving position, wherein...

[0020] When the ladle moves to the fork arm, the slewing and lifting assembly rotates 180 degrees, the ladle rotates to the casting position, and the molten steel from the ladle falls into the intermediate tank to provide molten steel for continuous casting machine production.

[0021] As can be seen from the above technical solution, the side-entry lifting ladle turntable provided by this utility model has the following advantages compared with the prior art:

[0022] 1) This utility model can realize the rotation of the ladle, so that the ladle filled with molten steel can rotate from the receiving position to the casting position, while the empty ladle after casting can rotate from the casting position to the receiving position. The full ladle and the empty ladle are replaced, and the molten steel cast into the intermediate ladle can be continued, so as to realize the continuous production of the continuous casting machine.

[0023] 2) This utility model can realize the lifting and lowering action of the ladle. When receiving the ladle at a low position, it reduces the impact of the ladle on the rotary table body. When lifting and lowering the ladle at the casting position, there is space to realize the online replacement of the ladle protective sleeve and insert the protective sleeve into the bottom of the molten steel in the intermediate tank, thereby protecting the molten steel from air oxidation during the process of flowing from the ladle to the intermediate tank, and realizing protective casting.

[0024] 3) This utility model can realize the side entry of the ladle, with the ladle falling on the fork arm, which satisfies the side entry function of the ladle turntable. It is not limited by the ladle operation and hoisting to the turntable entry method, thereby reducing the requirements of the continuous casting machine on the operation mode of the overhead crane in the workshop. This structure is simple, flexible in use, and low in cost.

[0025] To achieve the foregoing and related objectives, one or more aspects of the present invention include the features that will be described in detail below. The following description and accompanying drawings illustrate certain exemplary aspects of the present invention. However, these aspects indicate only a few of the various ways in which the principles of the present invention can be used. Furthermore, the present invention is intended to include all such aspects and their equivalents. Attached Figure Description

[0026] Other objects and results of this utility model will become more apparent and readily understood with reference to the following description taken in conjunction with the accompanying drawings, and with a more comprehensive understanding of the invention. In the drawings:

[0027] Figure 1 This is a front view of a side-loading lifting ladle turntable according to an embodiment of the present utility model;

[0028] Figure 2 This is a top view of a side-loading lifting ladle turntable according to an embodiment of the present utility model;

[0029] Figure 3 This is a cross-sectional view of a side-loading lifting ladle turntable according to an embodiment of the present utility model.

[0030] The reference numerals in the figures include:

[0031] 1. Fixed base; 2. Rotary drive device; 3. Turntable body; 4. First gear; 5. Rotary bearing; 6. Lifting hydraulic cylinder; 7. Lower connecting rod; 8. Fork arm; 9. Upper connecting rod; 10. Steel ladle; 11. Intermediate tank.

[0032] In all the accompanying drawings, the same reference numerals indicate similar or corresponding features or functions. Detailed Implementation

[0033] In the following description, numerous specific details are set forth for illustrative purposes and to provide a thorough understanding of one or more embodiments. However, it will be apparent that these embodiments may also be implemented without these specific details. In other instances, well-known structures and devices are shown in block diagram form for ease of description of one or more embodiments.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] To address the aforementioned limitations of existing ladle hoisting and loading methods onto a turntable, this invention provides a side-loading, lifting-type ladle turntable.

[0036] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0037] To illustrate the structure of the side-entry lifting ladle turntable provided by this utility model Figures 1 to 3 The structure of the side-entry lifting ladle turntable is illustrated by way of example from different angles. Specifically, Figure 1 The front view of the side-entry lifting ladle turntable according to an embodiment of the present invention is shown; Figure 2 The top view of the side-entry lifting ladle turntable according to an embodiment of the present invention is shown; Figure 3 A cross-sectional view of a side-entry lifting ladle turntable according to an embodiment of the present invention is shown.

[0038] like Figures 1 to 3As shown in the figure, the side-entry lifting ladle turntable provided by this utility model includes: a fixed base 1, a rotary drive device 2 disposed on the fixed base 1, a first gear 4 movably connected to the rotary drive device 2, a rotary bearing 5 movably connected to the first gear 4, and a rotary lifting assembly movably connected to the rotary bearing 5. The rotary drive device 2 provides driving force to the rotary lifting assembly through the first gear 4 and the rotary bearing 5. The rotary lifting assembly is used to drive the ladle 10 to lift and rotate under the action of the rotary drive device 2, so as to realize the side entry of the ladle.

[0039] The slewing bearing 5 includes an internal gear ring and an external gear ring. The internal gear ring is movably connected to the first gear 4, and the external gear ring is connected to the slewing lifting assembly. The fixed base 1, the slewing drive device 2, the first gear 4, and the internal gear ring of the slewing bearing 5 constitute the fixed part of the ladle slewing table, which provides fixed support for the slewing lifting assembly of the slewing table and drives the slewing lifting assembly to rotate.

[0040] The rotary lifting assembly includes: a turntable body 3 connected to the external gear ring; an upper connecting rod 9 and a lower connecting rod 7 movably connected to the upper and lower parts of the turntable body 3; a fork arm 8 movably connected to the upper connecting rod 9 and the lower connecting rod 7; a lifting hydraulic cylinder 6 disposed on the turntable body 3; and a ladle 10 disposed on the fork arm 8. The lifting hydraulic cylinder 6 is movably connected to the upper connecting rod 9, and the lifting hydraulic cylinder 6 drives the upper connecting rod 9 to rotate. Under the action of the lifting hydraulic cylinder 6 and the upper connecting rod 9, the fork arm 8 drives the ladle 10 to perform lifting and lowering movements.

[0041] One end of the upper connecting rod 9 is hinged to the upper part of the turntable body 3 via a pin, and the other end is hinged to the upper part of the fork arm 8 via a pin; one end of the lower connecting rod 7 is hinged to the lower part of the turntable body 3 via a pin, and the other end is hinged to the lower part of the fork arm 8 via a pin; the upper connecting rod 9, the turntable body, the lower connecting rod 7, and the fork arm 8 are sequentially hinged to form a four-bar linkage lifting structure.

[0042] The bottom of the lifting hydraulic cylinder 6 is movably connected to the turntable body 3, and the top of the lifting hydraulic cylinder 6 is hinged to the upper connecting rod 9. The ladle 10 moves up and down under the action of the lifting hydraulic cylinder 6 through the four-bar lifting structure. The four-bar lifting structure provides a stable force for the lifting of the ladle. That is, the function of the four-bar structure is to ensure that the ladle 10 can be lifted and lowered smoothly, guaranteeing vertical lifting.

[0043] The ladle 10 rotates alternately between the receiving position and the casting position via the turntable 3. The opening of the fork arm 8 is perpendicular to the casting flow direction, allowing the ladle 10 to be fed sideways at the receiving position. After the ladle 10 lands on the fork arm 8, the rotary lifting assembly rotates 180 degrees, and the ladle 10 rotates to the casting position. The sliding gate at the bottom of the ladle 10 is opened, and the molten steel falls into the intermediate ladle 11 at the bottom, and the continuous casting machine begins steel production.

[0044] This utility model provides a side-entry lifting ladle turntable, suitable for continuous casting workshops requiring specially arranged continuous casting machines. It allows the ladle to be entered sideways, i.e., perpendicular to the casting flow direction, enabling the rotational replacement of a full ladle with an empty one, and providing a ladle lifting function. This reduces the impact of the ladle falling when receiving it at the receiving position, and facilitates the replacement of the ladle's protective sleeve at the casting position, ensuring protective casting between the ladle and the tundish below. Furthermore, it is not limited by the ladle's hoisting and entry method, reducing the requirements on the crane operation mode in the workshop. This structure is simple, flexible in use, and has a low cost.

[0045] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A side charging ladle turret characterized by, The utility model relates to a side ladle charging lifting type ladle rotary table, including: Fixed base, rotary drive device set up on the fixed base, with first gear wheel of the rotary drive device swing joint, with first gear wheel swing joint rotary supporting and with rotary supporting swing joint rotary lifting assembly, The rotary drive device provides driving force for the rotary lifting assembly through the first gear wheel and the rotary supporting, The rotary lifting assembly is used for driving the ladle to lift and rotate under the action of the rotary drive device to realize the side ladle charging.

2. The side ladle charging lifting type ladle rotary table according to claim 1, wherein The rotary supporting includes an inner ring gear and an outer ring gear, The inner ring gear is swing connected with the first gear wheel, and the outer ring gear is connected with the rotary lifting assembly.

3. The side ladle charging lifting type ladle rotary table according to claim 2, wherein The rotary lifting assembly includes a rotary table body connected with the outer ring gear, an upper connecting rod and a lower connecting rod swing connected with the upper part and the lower part of the rotary table body, a fork arm swing connected with the upper connecting rod and the lower connecting rod, and a lifting hydraulic cylinder arranged on the rotary table body, and the ladle is located in the fork arm, The lifting hydraulic cylinder is swing connected with the upper connecting rod, the lifting hydraulic cylinder drives the upper connecting rod to rotate, and the fork arm drives the ladle to lift under the action of the lifting hydraulic cylinder and the upper connecting rod.

4. The side ladle charging lifting type ladle rotary table according to claim 3, wherein One end of the upper connecting rod is hinged with the upper part of the rotary table body through a pin shaft, and the other end is hinged with the upper part of the fork arm through a pin shaft; One end of the lower connecting rod is hinged with the lower part of the rotary table body through a pin shaft, and the other end is hinged with the lower part of the fork arm through a pin shaft; The upper connecting rod, the rotary table body, the lower connecting rod and the fork arm are sequentially hinged to form a four-bar linkage lifting structure.

5. The side ladle charging lifting type ladle rotary table according to claim 4, wherein The bottom of the lifting hydraulic cylinder is swing connected with the rotary table body, the top of the lifting hydraulic cylinder is hinged with the upper connecting rod, and the ladle lifts under the action of the lifting hydraulic cylinder through the four-bar linkage lifting structure.

6. The side ladle charging lifting type ladle rotary table according to claim 5, wherein The four-bar linkage lifting structure is used for providing stable force for the lifting of the ladle.

7. The side ladle charging lifting type ladle rotary table according to claim 6, wherein The ladle rotates alternately between the receiving position and the casting position through the rotary table body.

8. The side ladle charging lifting type ladle rotary table according to claim 7, wherein The opening of the fork arm faces the direction perpendicular to the casting direction, and the ladle is charged from the side of the receiving position, When the ladle moves to the rear of the fork arm, the rotary lifting assembly rotates by 180 degrees, the ladle rotates to the casting position, and the molten steel in the ladle falls into the intermediate ladle to provide the molten steel for continuous casting machine production.

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