Special lifting appliance for graphite electrode joint

Abstract

The utility model discloses a special lifting appliance for a graphite electrode joint, which comprises a lifting ring, the lifting ring comprises a connecting ring and a hanging lug, one end of the connecting ring is connected with a lifting end of a crane, the other end of the connecting ring is connected with the hanging lug, the lower end of the hanging lug is connected with a tightening belt capable of tightening and loosening, and one end of the tightening belt far away from the lifting ring is connected with a fixing rod through a bolt. The graphite electrode connector can be conveniently carried and boxed, and the connector is not prone to being damaged.

Description

Technical Field

[0001] This utility model relates to a special lifting tool, and more particularly to a special lifting tool for graphite electrode connectors. Background Technology

[0002] Currently, electric arc furnaces are widely used for refining steel and other metals both domestically and internationally. In existing technologies, artificial graphite electrodes are the most important high-temperature conductive material in electric arc furnace smelting. The length of the electrodes is typically increased by interlocking threads, and the graphite electrode connectors used for connection are conical at both ends. With the increase in electric arc furnace capacity and power, the dimensional requirements for graphite electrodes and connectors are becoming increasingly stringent. Relying solely on manual labor for handling and packing the connectors is extremely inconvenient and prone to damage during the process. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the problems of the prior art and provide a special lifting tool for graphite electrode connectors that can facilitate the handling and packing of graphite electrode connectors and is less likely to cause damage to the connectors.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0005] A special lifting tool for graphite electrode connectors includes a lifting ring. The upper end of the lifting ring is connected to the lifting end of a crane, and the lower end is connected to a tightening strap that can be tightened and loosened. A fixing rod is bolted to the end of the tightening strap away from the lifting ring.

[0006] Furthermore, the lifting ring includes a connecting ring and a hanging lug, with one end of the connecting ring connected to the lifting end of the crane and the other end connected to the hanging lug.

[0007] Furthermore, the tightening band includes an upper left connecting plate, an upper right connecting plate, a lower left L-shaped plate, and a lower right L-shaped plate. One end of the upper left connecting plate coincides with one end of the upper right connecting plate and is hinged to the lug by a first pin. The lower left L-shaped plate and the lower right L-shaped plate intersect each other, and the intersection point is connected together by a second pin. The upper end of the intersecting lower left L-shaped plate coincides with the other end of the upper left connecting plate and is hinged together by a third pin. The upper end of the intersecting lower right L-shaped plate coincides with the other end of the upper right connecting plate and is hinged together by a fourth pin. The entire tightening band can freely contract using the pins on it.

[0008] Furthermore, the bolt includes a first bolt and a second bolt, the fixing rod includes a first fixing rod and a second fixing rod, the lower end of the lower left L-shaped plate is connected to the first fixing rod through the first bolt, and the lower end of the lower right L-shaped plate is connected to the second fixing rod through the second bolt.

[0009] Furthermore, the dimensions of both the first fixing rod and the second fixing rod are matched with the connector bolt holes in the upper half of the graphite electrode connector.

[0010] The first fixing rod and the second fixing rod are arranged facing each other.

[0011] The lower ends of the lower left L-shaped plate and the lower right L-shaped plate are both arc-shaped to prevent damage to the graphite electrode connector.

[0012] The beneficial effects of this utility model are as follows:

[0013] This invention utilizes a tightening strap that can be loosened and tightened to quickly tighten or loosen the graphite electrode connector via a fixing rod. It is connected to a crane via a lifting ring, solving the problem of short-distance transportation and lifting of graphite electrode connectors. This greatly improves the efficiency of handling and packing graphite connectors in carbon plants, saves time and costs, and increases work efficiency.

[0014] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some schematic diagrams of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a structural schematic diagram of a special lifting tool for graphite electrode connectors according to the present invention.

[0017] In the diagram, 1-connecting ring, 2-hanging ear, 3-upper left connecting plate, 4-upper right connecting plate, 5-lower left L-shaped plate, 6-lower right L-shaped plate, 7-first pin, 8-second pin, 9-third pin, 10-fourth pin, 11-first bolt, 12-first fixing rod, 13-second bolt, 14-second fixing rod. Detailed Implementation

[0018] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", 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, a direct connection, or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0020] The names of the messages or information exchanged between the multiple devices in this embodiment of the invention are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0021] Example: Figure 1 As shown,

[0022] A special lifting tool for graphite electrode connectors includes a lifting ring, which includes a connecting ring 1 and a hanging lug 2. One end of the connecting ring 1 is connected to the lifting end of the crane, and the other end is connected to the hanging lug 2.

[0023] The loop 2 is connected to the tightening belt, which includes an upper left connecting plate 3, an upper right connecting plate 4, a lower left L-shaped plate 5, and a lower right L-shaped plate 6. One end of the upper left connecting plate 3 overlaps with one end of the upper right connecting plate 4 and is hinged to the loop 2 using a first pin 7. The lower left L-shaped plate 5 and the lower right L-shaped plate 6 cross each other and are connected together at the intersection point using a second pin 8. The upper end of the lower left L-shaped plate 5 after crossing overlaps with the other end of the upper left connecting plate 3 and is hinged together using a third pin 9. The upper end of the lower right L-shaped plate 6 after crossing overlaps with the other end of the upper right connecting plate 4 and is hinged together using a fourth pin 10. In this way, the entire tightening belt can achieve free contraction using the pins on it.

[0024] The lower end of the lower left L-shaped plate 5 is connected to the first fixing rod 12 by the first bolt 11, and the lower end of the lower right L-shaped plate 6 is connected to the second fixing rod 14 by the second bolt 13. The first fixing rod 12 and the second fixing rod 14 are arranged facing each other.

[0025] The lower ends of the lower left L-shaped plate 5 and the lower right L-shaped plate 6 are both arc-shaped to prevent damage to the graphite electrode connectors.

[0026] In operation, initially, the device is connected to the crane via the lifting ring, with the tension belt in a loose state. When it is necessary to lift and move the joint, the operator holds the lifting tool and places the first fixing rod 12 and the second fixing rod 14 into the joint bolt holes in the upper half of the graphite electrode joint, ensuring proper tightness. Then, the crane is started to transport the graphite electrode joint to its destination. Finally, the tension belt is loosened and the first fixing rod 12 and the second fixing rod 14 are removed.

[0027] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A special lifting tool for graphite electrode connectors, comprising a lifting ring, characterized in that: The upper end of the lifting ring is connected to the lifting end of the crane, and the lower end is connected to a tightening belt that can be tightened and loosened. A fixing rod is bolted to the end of the tightening belt away from the lifting ring.

2. The special lifting tool for graphite electrode connectors according to claim 1, characterized in that: The lifting ring includes a connecting ring and a hanging lug. One end of the connecting ring is connected to the lifting end of the crane, and the other end is connected to the hanging lug.

3. The special lifting tool for graphite electrode connectors according to claim 2, characterized in that: The tightening band includes an upper left connecting plate, an upper right connecting plate, a lower left L-shaped plate, and a lower right L-shaped plate. One end of the upper left connecting plate overlaps with one end of the upper right connecting plate and is hinged to the lug by a first pin. The lower left L-shaped plate and the lower right L-shaped plate intersect each other and are connected together at the intersection point by a second pin. The upper end of the intersecting lower left L-shaped plate overlaps with the other end of the upper left connecting plate and is hinged together by a third pin. The upper end of the intersecting lower right L-shaped plate overlaps with the other end of the upper right connecting plate and is hinged together by a fourth pin.

4. A special lifting tool for graphite electrode connectors according to claim 3, characterized in that: The bolts include a first bolt and a second bolt, and the fixing rods include a first fixing rod and a second fixing rod. The lower end of the lower left L-shaped plate is connected to the first fixing rod through the first bolt, and the lower end of the lower right L-shaped plate is connected to the second fixing rod through the second bolt.

5. A special lifting tool for graphite electrode connectors according to claim 4, characterized in that: The dimensions of the first fixing rod and the second fixing rod are both matched with the connector bolt holes in the upper half of the graphite electrode connector.

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