A molten iron ladle with a split lid

By using a lead screw motor to drive a self-limiting threaded seat and a linkage mechanism on a molten iron ladle, the automatic opening and closing of the split ladle lid is achieved, solving the problems of time-consuming, labor-intensive, and safety hazards associated with manual operation in existing technologies, and reducing mechanical costs.

CN224444572UActive Publication Date: 2026-07-03LINYI MEIDE GENGCHEN METAL MATERIALS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LINYI MEIDE GENGCHEN METAL MATERIALS CO LTD
Filing Date
2025-05-28
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing double-leaf molten iron ladle lid requires manual operation to open and close, which is time-consuming, labor-intensive, and poses safety hazards, and the control mechanism is also costly.

Method used

A lead screw motor drives a self-limiting threaded seat, which connects to the can lid via a horizontal plate and connecting rod screwed onto the screw, thus achieving automatic opening and closing of the can lid, reducing mechanical costs and avoiding manual operation.

Benefits of technology

It enables automatic opening and closing of can lids, saving mechanical costs, avoiding safety hazards caused by manual operation, and improving operational efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

This patent discloses a molten iron ladle with a split lid, comprising a ladle body and a screw motor. A fixing plate is fixedly installed at the top center of the inner side wall of the ladle body. A ring is integrally formed on the top of the outer side wall of the ladle body, and lids are hinged to the left and right ends of the top of the ring. A screw is fixedly installed at the bottom end of the screw motor shaft, and a self-limiting threaded seat is screwed onto the side wall of the screw. This patent achieves this by screwing a self-limiting threaded seat onto the screw of the screw motor, with horizontal plates installed at both ends of the self-limiting threaded seat. Connecting rods are hinged to the bottom of the horizontal plates, and the bottom ends of the two connecting rods are respectively hinged to the top of the two lids. The rotation of the screw motor can drive the two lids to open and close simultaneously, saving mechanical costs and eliminating the need for manual operation of the lids, thus avoiding safety hazards.
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Description

Technical Field

[0001] This patent relates to the field of molten iron ladle technology, specifically a molten iron ladle with a split lid. Background Technology

[0002] To increase the opening and closing speed and reduce the opening range of the ladle, existing molten iron ladles are designed with a split lid. The existing split lid consists of two lid bodies. Currently, some lids are opened manually, which is time-consuming, labor-intensive, and poses safety hazards. Others require two opening and closing mechanisms to control the lid, which is costly. Therefore, we propose a molten iron ladle with a split lid. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this patent is to provide a molten iron ladle with a split-type lid. This patent utilizes a self-limiting threaded seat screwed onto the screw of a lead screw motor. Horizontal plates are installed at both ends of the self-limiting threaded seat, and connecting rods are hinged to the bottom of the horizontal plates. The bottom ends of the two connecting rods are respectively hinged to the tops of the two lids. The rotation of the lead screw motor can drive the two lids to open and close simultaneously, saving mechanical costs and eliminating the need for manual operation of the lids, thus avoiding safety hazards.

[0004] The technical solution adopted by this patent to solve its technical problem is: a molten iron ladle with a split lid, including a molten iron ladle body and a lead screw motor. A fixing plate is fixedly installed on the top center of the inner side wall of the molten iron ladle body. A ring body is integrally formed on the top of the outer side wall of the molten iron ladle body. A lid is hinged to both the left and right ends of the top of the ring body. A screw is fixedly installed at the bottom end of the shaft of the lead screw motor. A self-limiting threaded seat is screwed onto the side wall of the screw. A horizontal plate is installed on both the left and right ends of the self-limiting threaded seat. A connecting rod is hinged to the bottom of the horizontal plate through a hinge seat. The bottom end of the connecting rod is hinged to the top of the lid through a hinge seat.

[0005] The self-limiting threaded seat includes an internal threaded ring, a vertical tube, and a square ring. The internal threaded ring is screwed onto the screw rod. The top end of the vertical tube is fixedly installed at the bottom of the housing of the screw motor. The height of the vertical tube matches the height of the screw rod. The left and right ends of the side wall of the vertical tube are provided with strip holes. The front and rear sides of the outer side wall of the vertical tube are provided with wheel grooves. The left and right ends of the inner side wall of the square ring are each equipped with a crossbar. The inner end of the crossbar passes through the strip hole and is fixedly installed on the outer side wall of the internal threaded ring. The front and rear sides of the inner side wall of the square ring are connected to limit wheels through wheel seats. The limit wheels are rolled in the wheel grooves. The crossbar is fixed to the outer side wall of the square ring.

[0006] Furthermore, a through hole is provided in the middle of the cross plate, and a stud is fixedly installed at the outer end of the cross bar. A nut is screwed to the end of the stud through the through hole.

[0007] Furthermore, positioning grooves are provided at both ends of the inner side of the horizontal plate, and positioning posts are integrally formed on both the left and right sides of the outer side wall of the square ring, with the positioning posts inserted into the positioning grooves.

[0008] Furthermore, the top of both sides of the outer wall of the riser is integrally formed with ear plates, and the middle of the ear plate is provided with a mounting hole. A bolt is provided in the mounting hole, and the top of the bolt is screwed into the bottom of the housing of the lead screw motor.

[0009] Furthermore, insert rods are integrally formed on both sides of the top of the ear plate.

[0010] Furthermore, the top end of the insertion rod is provided with a tapered surface.

[0011] The beneficial effects of this patent are:

[0012] 1. This patent features a self-limiting threaded seat screwed onto the screw of a lead screw motor. Horizontal plates are installed at both ends of the self-limiting threaded seat, and connecting rods are hinged to the bottom of the horizontal plates. The bottom ends of the two connecting rods are respectively hinged to the tops of the two can lids. The rotation of the lead screw motor can drive the two can lids to open and close simultaneously, saving mechanical costs and eliminating the need for manual operation of the can lids, thus avoiding safety hazards. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this patent.

[0014] Figure 2 This is a top view of the self-limiting threaded seat of this patent.

[0015] Figure 3 This is a three-dimensional view of the riser pipe in this patent.

[0016] Explanation of reference numerals in the attached drawings: 1. Ladle body, 2. Fixing plate, 3. Ring body, 4. Ladle cover, 5. Lead screw motor, 6. Screw, 7. Self-limiting threaded seat, 8. Horizontal plate, 9. Connecting rod, 10. Internal threaded ring, 11. Vertical pipe, 12. Strip hole, 13. Wheel groove, 14. Square ring, 15. Horizontal bar, 16. Limiting wheel, 17. Stud, 18. Nut, 19. Positioning groove, 20. Positioning column, 21. Ear plate, 22. Bolt, 23. Insert rod, 24. Conical surface. Detailed Implementation

[0017] The present patent is further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the patent. Furthermore, it should be understood that after reading the teachings of this patent, those skilled in the art can make various alterations or modifications to this patent, and these equivalent forms also fall within the scope defined by the appended claims.

[0018] See Figure 1 , Figure 2 and Figure 3 This is a schematic diagram of the structure of this patent. A molten iron ladle with a split lid includes a molten iron ladle body 1 and a lead screw motor 5. A fixing plate 2 is fixedly installed in the middle of the top of the inner side wall of the molten iron ladle body 1. A ring body 3 is integrally formed in the top of the outer side wall of the molten iron ladle body 1. A lid 4 is hinged to both the left and right ends of the top of the ring body 3. A screw 6 is fixedly installed at the bottom of the shaft of the lead screw motor 5. A self-limiting threaded seat 7 is screwed to the side wall of the screw 6. A horizontal plate 8 is installed at both the left and right ends of the self-limiting threaded seat 7. A connecting rod 9 is hinged to the bottom of the horizontal plate 8 through a hinge seat. The bottom end of the connecting rod 9 is hinged to the top of the lid 4 through a hinge seat.

[0019] The self-limiting threaded seat 7 includes an internal threaded ring 10, a riser 11, and a square ring 14. The internal threaded ring 10 is screwed onto the screw rod 6. The top end of the riser 11 is fixedly installed at the bottom of the housing of the screw motor 5. The height of the riser 11 matches the height of the screw rod 6. The left and right ends of the side wall of the riser 11 are provided with strip holes 12. The front and rear sides of the outer side wall of the riser 11 are provided with wheel grooves 13. The left and right ends of the inner side wall of the square ring 14 are each equipped with a crossbar 15. The inner end of the crossbar 15 passes through the strip hole 12 and is fixedly installed on the outer side wall of the internal threaded ring 10. The front and rear sides of the inner side wall of the square ring 14 are connected to limit wheels 16 through wheel seats. The limit wheels 16 are rolled in the wheel grooves 13. The cross plate 8 is fixed to the outer side wall of the square ring 14.

[0020] Traditional lead screw systems mostly use sliding blocks that slide within grooves, which is a sliding limit mechanism. This results in high friction, significant wear between components, and frequent replacements. However, by using a limit wheel 16 in the self-limiting threaded seat 7, which is rolled within the wheel groove 13, rolling limit is achieved. This greatly reduces friction and allows for a compact design, reducing installation space.

[0021] Specifically, the horizontal plate 8 has a through hole in the middle, and the outer end of the horizontal bar 15 is fixedly installed with a stud 17. The end of the stud 17 passes through the through hole and is screwed with a nut 18.

[0022] The stud 17 and nut 18 are provided for the simultaneous assembly of the internal threaded ring 10, the square ring 14 and the cross plate 8.

[0023] Specifically, both ends of the inner side of the horizontal plate 8 are provided with positioning grooves 19, and the left and right sides of the outer side wall of the square ring 14 are integrally formed with positioning posts 20, which are inserted into the positioning grooves 19.

[0024] The positioning pin 20 is inserted into the positioning groove 19 to define the installation position of the square ring 14 and the horizontal plate 8.

[0025] Specifically, the top of the left and right sides of the outer wall of the riser 11 are integrally formed with ear plates 21. The middle of the ear plate 21 is provided with a mounting hole, and a bolt 22 is provided in the mounting hole. The top of the bolt 22 is screwed into the bottom of the housing of the lead screw motor 5.

[0026] The bottom of the housing of the lead screw motor 5 is provided with a threaded groove that matches the bolt 22.

[0027] Specifically, the top two sides of the ear plate 21 are integrally formed with insert rods 23.

[0028] The bottom of the housing of the lead screw motor 5 is provided with a slot for the plug rod 23. By inserting the plug rod 23 into the slot, the radial compressive strength of the bolt 22 can be increased.

[0029] Specifically, the top of the insertion rod 23 is provided with a tapered surface 24.

[0030] The tapered surface 24 reduces the size of the tip of the insertion rod 23, making it easier for the insertion rod 23 to be inserted into the slot.

[0031] Working principle: When it is necessary to open the can lid 4, the screw 6 is driven to rotate by the lead screw motor 5. The rotation of the screw 6 can drive the self-limiting threaded seat 7 to move upward. The horizontal plate 8 moves upward and, through the connecting rod 9, can drive the can lid 4 to flip along the hinge point with the ring body 3, thereby opening the can lid 4.

[0032] It should be noted that the device structure and accompanying drawings of this patent mainly describe the principle of this patent. In terms of the technical aspects of this design principle, the setting of the device's power mechanism, power supply system and control system is not fully described. However, those skilled in the art who understand the principle of the above patent can clearly understand the specifics of its power mechanism, power supply system and control system.

[0033] This patent features a self-limiting threaded seat screwed onto the screw of a lead screw motor. Horizontal plates are installed at both ends of the self-limiting threaded seat, and connecting rods are hinged to the bottom of the horizontal plates. The bottom ends of the two connecting rods are respectively hinged to the tops of the two can lids. The rotation of the lead screw motor can drive the two can lids to open and close simultaneously, saving mechanical costs and eliminating the need for manual operation of the can lids, thus avoiding safety hazards.

[0034] In the description of this patent, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. At the same time, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction relationship between two elements. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0035] Although embodiments of this patent have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this patent, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ladle with a split cover, characterized in that: The system includes a molten iron ladle body (1) and a lead screw motor (5). A fixing plate (2) is fixedly installed at the top center of the inner side wall of the molten iron ladle body (1). A ring body (3) is integrally formed on the top of the outer side wall of the molten iron ladle body (1). A ladle cover (4) is hinged to both the left and right ends of the top of the ring body (3). A screw rod (6) is fixedly installed at the bottom of the shaft of the lead screw motor (5). A self-limiting threaded seat (7) is screwed onto the side wall of the screw rod (6). A horizontal plate (8) is installed at both the left and right ends of the self-limiting threaded seat (7). A connecting rod (9) is hinged to the bottom of the horizontal plate (8) through a hinge seat. The bottom end of the connecting rod (9) is hinged to the top of the ladle cover (4) through a hinge seat. The self-limiting threaded seat (7) includes an internal threaded ring (10), a riser (11), and a square ring (14). The internal threaded ring (10) is screwed onto the screw rod (6). The top end of the riser (11) is fixedly installed at the bottom of the housing of the screw motor (5). The height of the riser (11) matches the height of the screw rod (6). The left and right ends of the side wall of the riser (11) are provided with strip holes (12). The front and rear sides of the outer side wall of the riser (11) are provided with wheel grooves (13). The left and right ends of the inner side wall of the square ring (14) are provided with crossbars (15). The inner end of the crossbar (15) passes through the strip hole (12) and is fixedly installed on the outer side wall of the internal threaded ring (10). The front and rear sides of the inner side wall of the square ring (14) are connected to limit wheels (16) through wheel seats. The limit wheels (16) are rolled in the wheel grooves (13). The cross plate (8) is fixed to the outer side wall of the square ring (14).

2. A ladle with a split cover according to claim 1, characterized in that: The horizontal plate (8) has a through hole in the middle, and a stud (17) is fixedly installed on the outer end of the horizontal bar (15). The end of the stud (17) is screwed with a nut (18) through the through hole.

3. A ladle with a split lid according to claim 1, characterized in that: The inner ends of the horizontal plate (8) are provided with positioning grooves (19), and the outer sides of the square ring (14) are integrally formed with positioning posts (20), which are inserted into the positioning grooves (19).

4. The open top ladle of claim 1 wherein: The top of the left and right sides of the outer wall of the riser (11) is integrally formed with ear plates (21). The middle of the ear plate (21) is provided with a mounting hole, and a bolt (22) is provided in the mounting hole. The top of the bolt (22) is screwed into the bottom of the housing of the lead screw motor (5).

5. A ladle with a split cover according to claim 4, characterized in that: The top two sides of the ear plate (21) are integrally formed with insert rods (23).

6. A ladle with a split lid according to claim 5, characterized in that: The top of the insertion rod (23) is provided with a tapered surface (24).