Steel ladle cover self-induction opening and closing structure for steel ladle

Abstract

The utility model relates to the technical field of steel ladle covers, in particular to a steel ladle cover self-induction opening and closing structure for a steel ladle, which comprises a cover body and a plurality of groups of convex seats arranged on the peripheral side of the cover body, each group of convex seats is hinged with a group of positioning pieces, and the positioning pieces are positioned on the outer side of the cover body. A top seat is located above the center of the cover body and fixedly connected with the cover body through a rope, the top seat is connected with the multiple sets of positioning pieces through a linkage mechanism, and the multiple sets of positioning pieces arranged around the cover body can complete positioning closing or opening of the cover body and the steel ladle by sensing the lifting state of the top seat.

Description

Technical Field

[0001] The utility model relates to the technical field of ladle covers, in particular to a ladle cover self-inductive opening and closing structure for a ladle. Background Art

[0002] The ladle is a container for molten steel. In order to maintain the temperature inside the ladle, a ladle cover is required to reduce heat loss.

[0003] Publication (Announcement) No.: CN220144750U, a new type of ladle cover, which is fixed by manually controlling the clamping plate to move and contact the outer wall of the ladle after the ladle cover is set, thereby preventing the set ladle cover from moving. The fixing of the above-mentioned ladle cover requires manual operation one by one, which is inefficient.

[0004] Publication (Announcement) No.: CN217192544U, a ladle cover, when the ladle cover body is covering the boiler, the contact ball first contacts the boiler, and then the ladle cover body is lowered, at this time the T-shaped rod pushes the right angle frame to move towards the boiler, the spring is compressed, and the spring can make the right angle frame fall naturally, and then in the process of the ladle cover body approaching the boiler, the right angle can continue to approach the boiler until the boiler is stuck. In the above scheme, since each group of adjustment structures is independent of each other, if a certain misalignment occurs with the top of the ladle when the ladle cover is lowered, part of the bottom end of the T-shaped rod will be located on the outside of the ladle, and part of the bottom end of the T-shaped rod will be located on the inside of the ladle. At this time, it is impossible to move the ladle cover by direct lateral movement. The ladle cover needs to be lifted up and then aligned with the ladle before being lowered.

[0005] In view of the above-mentioned defects of the prior art, the present invention proposes a self-sensing opening and closing structure of a ladle cover for a ladle, in which multiple groups of closing structures on the periphery of the cover body are linked to each other, and the opening and closing of the closing structures can also be linked by the placement state of the ladle cover. Utility Model Content

[0006] The utility model aims at at least solving the problem in the prior art that the closing structure on the ladle cover cannot realize linkage or has certain requirements on the initial closing accuracy of the ladle cover.

[0007] The present invention provides a self-sensing opening and closing structure of a ladle cover for a ladle, which is achieved by the following specific technical means: it comprises a cover body and a plurality of groups of bosses arranged on the circumference of the cover body, a group of positioning members being hingedly mounted on each group of the bosses, the positioning members being located on the outside of the cover body, and being located above the center of the cover body and fixedly connected to the cover body with a top seat via a rope, when in use, the top seat is connected to a lifting device, and the cover body is lifted by the lifting device, the top seat and the plurality of groups of positioning members are connected via a linkage mechanism, when the top seat is lifted, the rope is in a taut state, the bottom end of the positioning member is in an outwardly inclined state away from the cover body, after the cover body is closed, the falling top seat pushes the linkage mechanism, so that the plurality of groups of positioning members move toward the outer wall of the ladle and contact the outer wall of the ladle.

[0008] Preferred technical solution one: the linkage mechanism includes a vertical cylinder fixed at the top center of the cover body, a slide plate is provided in the vertical cylinder for lifting and sliding, a vertical rod fixed on the top of the slide plate slides through the top wall of the vertical cylinder and the top end is fixedly connected to the top seat, a linkage rod is hingedly connected between the slide plate and each group of positioning parts, and the linkage rod is used to synchronously control the bottom ends of multiple groups of positioning parts to move closer or farther away from each other.

[0009] Preferred technical solution 2: A return spring is connected between the slide plate and the bottom wall of the vertical cylinder, and when the top seat is lifted, the slide plate moves upward so that the return spring is stretched.

[0010] Optimal technical solution three: the middle part of the positioning member is hingedly connected to the convex seat, and the top end of the positioning member is hingedly connected to the end of the linkage rod.

[0011] Optimal technical solution four: when the top seat is in the lifted state, the linkage rod is in the inclined state.

[0012] The above structure enables this solution to have the following beneficial effects:

[0013] 1. Multiple groups of positioning parts arranged around the cover can complete the positioning, closing or opening of the cover and the ladle by sensing the hanging state of the top seat;

[0014] 2. The linkage mechanism can realize linkage control between multiple groups of positioning parts. Before the top seat is lowered and the rope is relaxed, the positioning parts will not be completely closed, so that if there is an error in the lowering of the cover body, it can be adjusted directly by lateral movement;

[0015] 3. The setting of vertical rods and vertical tubes, combined with multiple sets of ropes, can not only stably lift the cover body, but also disperse the lifting force to prevent a single part from being subjected to large pulling force. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this scheme;

[0018] Figure 2 This is the upper view of this scheme;

[0019] Figure 3 This is a schematic diagram of the structure of the return spring, slide plate and vertical rod of this scheme;

[0020] Figure 4 This is the exploded diagram of this solution.

[0021] Among them, 1. cover body, 11. convex seat, 2. positioning piece, 3. top seat, 31. hook, 4. linkage mechanism, 41. vertical cylinder, 411. vertical hole, 42. slide plate, 43. vertical rod, 44. linkage rod, 45. reset spring, 5. rope. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 2 The ladle cover self-sensing opening and closing structure comprises a cover body 1 and a plurality of convex seats 11 arranged on the periphery of the cover body 1, each convex seat 11 is hingedly mounted with a set of positioning members 2, the middle part of the positioning members 2 is hingedly connected with the convex seats 11, the positioning members 2 are located on the outside of the cover body 1, and are located above the center of the cover body 1 and are fixedly connected with the cover body 1 through ropes to a top seat 3, the ropes and the cover body 1 and the top seat 3 are all detachably connected, when in use, the top seat 3 is connected to the lifting equipment, and the cover body 1 is lifted by the lifting equipment, the top seat 3 is connected to the top of the plurality of positioning members 2 through a linkage mechanism 4, and the top seat 3 is fixedly connected to the top of the plurality of positioning members 2 through a linkage mechanism 4. When being lifted, the rope is in a taut state. At this time, the top seat 3 is away from the cover body 1. Driven by the linkage mechanism 4, the bottom end of the positioning piece 2 is in an outwardly inclined state away from the cover body 1. After the cover body 1 is set, the lifting equipment puts down the top seat 3. At this time, the falling top seat 3 pushes the linkage mechanism 4, so that multiple groups of positioning pieces 2 move toward the outer wall of the ladle and contact with the outer wall of the ladle, realizing the closed positioning of the ladle cover. The opening and closing of the positioning pieces 2 are automatically sensed and controlled by the lifting state of the top seat 3. When the cover body 1 is lifted, the top seat 3 is first lifted up and away from the cover body 1, and the positioning pieces 2 are first opened and separated from the contact state with the ladle wall.

[0024] See also Figure 1-Figure 4, the ladle cover self-sensing opening and closing structure, the linkage mechanism 4 includes a vertical cylinder 41 fixed at the top center of the cover body 1, a slide plate 42 is lifted and slid in the vertical cylinder 41, a vertical rod 43 fixed on the top of the slide plate 42 slides through the top wall of the vertical cylinder 41 and then the top end is fixedly connected to the top seat 3, a linkage rod 44 is hingedly connected between the slide plate 42 and each group of positioning members 2, the top of the positioning member 2 is hingedly connected to the end of the linkage rod 44, a plurality of groups of vertical holes 411 for the linkage rod 44 to pass through are provided on the wall of the vertical cylinder 41, and when the slide plate 42 is lifted and lowered in the vertical cylinder 41, the linkage rod 44 is driven to slide in the vertical hole 411, and the lifting and lowering of the slide plate 42 in the vertical cylinder 41 can be controlled by the hanging state of the top seat 3, and then the linkage rod 44 is used to synchronously control the bottom ends of the plurality of groups of positioning members 2 to approach or move away from each other;

[0025] When the top seat 3 is in the lifted state, the linkage rod 44 is in the tilted state, at which time the connection end of the linkage rod 44 and the slide plate 42 is higher than the connection end of the linkage rod 44 and the positioning member 2, and at this time the bottom end of the positioning member 2 is away from the side wall of the ladle.

[0026] See also Figure 3 The ladle cover has a self-sensing opening and closing structure, and a return spring 45 is connected between the slide plate 42 and the bottom wall of the vertical cylinder 41. When the top seat 3 is lifted, the slide plate 42 moves up so that the return spring 45 is stretched. When the top seat 3 is lowered, the return spring 45 rebounds and controls the slide plate 42 to move down so that the bottom ends of the positioning members 2 are close to each other.

[0027] See also Figure 1 The ladle cover has a self-inductive opening and closing structure, and a hook 31 is fixed on the top of the top seat 3, which is connected to the lifting device of the lifting equipment through the hook 31.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ladle cover self-sensing opening and closing structure for a ladle, comprising a cover body (1) and a plurality of groups of convex seats (11) arranged on the circumference of the cover body (1), each group of the convex seats (11) being hingedly mounted with a group of positioning members (2), characterized in that: The positioning member (2) is located on the outside of the cover body (1) and above the center of the cover body (1) and is fixedly connected to the cover body (1) with a top seat (3) via a rope. When in use, the top seat (3) is connected to a lifting device, and the cover body (1) is lifted by the lifting device. The top seat (3) and the plurality of positioning members (2) are connected via a linkage mechanism (4).

2. The self-inductive opening and closing structure of a ladle cover for a ladle according to claim 1, characterized in that: The linkage mechanism (4) comprises a vertical cylinder (41) fixed at the top center of the cover body (1), a slide plate (42) is provided in the vertical cylinder (41) for lifting and sliding, a vertical rod (43) fixed at the top of the slide plate (42) slides through the top wall of the vertical cylinder (41) and is fixedly connected to the top seat (3) at the top end, and a linkage rod (44) is hingedly connected between the slide plate (42) and each group of positioning members (2).

3. The self-inductive opening and closing structure of a ladle cover for a ladle according to claim 2, characterized in that: The wall of the vertical cylinder (41) is provided with a plurality of vertical holes (411) for the linkage rods (44) to pass through, and when the slide plate (42) is lifted or lowered in the vertical cylinder (41), the linkage rods (44) are driven to slide in the vertical holes (411).

4. The self-inductive opening and closing structure of a ladle cover for a ladle according to claim 2, characterized in that: A return spring (45) is connected between the slide plate (42) and the bottom wall of the vertical cylinder (41).

5. The self-inductive opening and closing structure of a ladle cover for a ladle according to claim 2, characterized in that: The middle part of the positioning member (2) is hingedly connected to the convex seat (11), and the top end of the positioning member (2) is hingedly connected to the end of the linkage rod (44).

6. The self-inductive opening and closing structure of a ladle cover for a ladle according to claim 1, characterized in that: A hook (31) is fixed on the top of the top seat (3).

7. The self-inductive opening and closing structure of a ladle cover for a ladle according to claim 5, characterized in that: When the top seat (3) is in an upwardly lifted state, the mutually approaching ends of the plurality of linkage rods (44) are in an inclined state.

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