Electrode bar lifting appliance for travelling crane

Abstract

The utility model relates to the technical field of crane lifting, and discloses an electrode bar lifting appliance for a crane, which comprises a lifting ring, a screw rod arranged at the bottom, a shackle arranged at the bottom of the screw rod, and a lifting hook arranged at the bottom of the shackle, the connecting assembly is arranged at the bottom of the screw rod and comprises a first connecting seat in threaded connection with the outer side of the screw rod, a rotating ball is rotationally connected into the first connecting seat, a second connecting seat is fixedly connected with the outer side of the rotating ball, and a transverse pin is in threaded connection with the bottom of the second connecting seat; through the arrangement of the connecting assembly, the lifting ring, the shackle and the lifting hook, the high-frequency and high-precision electrode bar lifting requirement of the electroslag furnace can be met, and production safety and process continuity are guaranteed.

Description

An electrode rod lifting device for cranes Technical Field

[0001] This utility model relates to the field of overhead crane lifting technology, specifically to an electrode rod lifting device for overhead cranes. Background Technology

[0002] Overhead crane hoisting is an industrial operation that uses lifting equipment to achieve vertical lifting and horizontal movement of heavy objects. It is a core technology of lifting operations. In the traditional 1-ton ingot electroslag remelting process of electroslag furnace, the electrode rod is the core conductive medium. The lifting and replacement frequency is high, and the furnace front working environment is hot and dusty, which places strict requirements on the heat resistance, clamping stability and positioning accuracy of the lifting equipment.

[0003] Traditional lifting devices mainly use mechanical clamps or wire rope binding, which have obvious limitations. Uneven clamping force can easily cause electrode rods to slip or be damaged on the surface. At the same time, they lack heat insulation design, and the wire ropes and hydraulic components are prone to high-temperature aging. In addition, the low precision of manual operation makes it difficult to meet the requirements of rapid and accurate alignment of electrodes and crystallizers, affecting the stability and efficiency of melting. Summary of the Invention

[0004] The purpose of this utility model is to provide an electrode rod lifting device for cranes, so as to solve the problems that traditional lifting devices, which use mechanical clamps or wire rope binding, may cause the electrode rod to slip off, and have low operating accuracy, resulting in low lifting efficiency and affecting the stability and efficiency of smelting.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electrode rod lifting device for cranes, including a lifting ring, and further comprising:

[0006] A screw is located at the bottom, a shackle is located at the bottom of the screw, and a hook is located at the bottom of the shackle;

[0007] A connecting assembly is disposed at the bottom of the screw. The connecting assembly includes a first connecting seat threaded to the outside of the screw, a rotating ball rotatably connected inside the first connecting seat, a second connecting seat fixedly connected to the outside of the rotating ball, and a cross pin threaded to the bottom of the second connecting seat.

[0008] Preferably, a first positioning nut is provided on the outer side of the cross pin, and an anti-slip sleeve is provided on the outer side of the screw.

[0009] Preferably, the outer side of the screw is threaded with a second positioning nut, and the outer side of the screw is threaded with a top tube.

[0010] Preferably, a first flange is fixedly connected to the top of the jacking pipe, and a graphite gasket is provided on the top of the first flange.

[0011] Preferably, a second flange is provided on the top of the graphite gasket, and a connecting bolt is provided inside the second flange.

[0012] Preferably, the graphite gasket has a screw hole inside, and the inner wall of the screw hole is threaded to the outer side of the connecting bolt.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention, through the setting of a connecting component, allows the rotating ball to rotate inside the second connecting seat when the hook is hoisting the electrode rod. This causes the hook to rotate at a certain angle, preventing the electrode rod from detaching. Simultaneously, a silicon nitride coating is sprayed on the contact surface between the screw and the shackle to reduce high-temperature oxidation and frictional loss. Graphite-based grease is filled inside the rotating ball to ensure smooth swinging under high-temperature conditions. The shackle is forged from high-strength alloy steel, enabling the hoisting of the electrode rod. During hoisting, the load is transferred through the lifting ring to the two flanges, then to the screw, shackle, and hook, thus ensuring the load is transferred step-by-step and preventing stress concentration. Attached Figure Description

[0015] Figure 1 is a structural schematic diagram of a preferred embodiment of the electrode rod lifting device for cranes provided by this utility model;

[0016] Figure 2 is a schematic diagram of the connection between the screw and the shackle structure provided by this utility model;

[0017] Figure 3 is a schematic diagram of the connection between the jacking pipe and the screw structure provided by this utility model;

[0018] Figure 4 is a schematic diagram of the connection between the lifting ring and the second flange structure provided by this utility model.

[0019] In the diagram: 1. Lifting ring; 2. Screw; 3. Shackle; 4. Hook; 5. Connecting assembly; 51. First connecting seat; 52. Rotating ball; 53. Second connecting seat; 54. Horizontal pin; 6. First positioning nut; 7. Anti-slip sleeve; 8. Second positioning nut; 9. Jacking pipe; 10. First flange; 11. Graphite gasket; 12. Second flange; 13. Connecting bolt; 14. Screw hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please refer to Figures 1-4. A crane electrode rod lifting device includes a lifting ring 1, which facilitates the connection of the device by the operator. It also includes:

[0022] The screw 2 is located at the bottom, which makes it easy for workers to connect and place the screw 2. The shackle 3 is located at the bottom of the screw 2, and the hook 4 is located at the bottom of the shackle 3. The shackle 3 and the hook 4 make it easy for workers to lift the electrode rod.

[0023] The connecting component 5 is located at the bottom of the screw 2. Under the action of the connecting component 5, the screw 2 and the first connecting seat 51 rotate at a certain angle outside the rotating ball 52, allowing the electrode rod to be adjusted at a certain angle during hoisting. The connecting component 5 includes a first connecting seat 51 threadedly connected to the outside of the screw 2. By setting the first connecting seat 51, rotating the screw 2 ensures a stable connection between the screw 2 and the first connecting seat 51. A rotating ball 52 is rotatably connected inside the first connecting seat 51. Under the action of the rotating ball 52, the first connecting seat 51 can rotate at a certain angle. A second connecting seat 53 is fixedly connected to the outside of the rotating ball 52. A horizontal pin 54 is threadedly connected to the bottom of the second connecting seat 53. By setting the horizontal pin 54, the inside of the horizontal pin 54 is threadedly connected to the outside of the second connecting seat 53, facilitating the disassembly of the second connecting seat 53 by the operator, thus enabling the disassembly and assembly of the device.

[0024] Referring to Figures 1 and 3, a first positioning nut 6 is provided on the outer side of the horizontal pin 54. By providing the first positioning nut 6, it is convenient for the staff to position the horizontal pin 54. An anti-slip sleeve 7 is provided on the outer side of the screw 2. By providing the anti-slip sleeve 7, it is convenient for the staff to rotate the screw 2.

[0025] The screw 2 is threadedly connected to a second positioning nut 8. By setting the second positioning nut 8, it is easy for the operator to position the screw 2. The screw 2 is threadedly connected to a jacking pipe 9. By setting the jacking pipe 9, it is easy for the operator to connect and install the screw 2 to the first flange 10.

[0026] The top of the jacking pipe 9 is fixedly connected to the first flange 10. By setting the first flange 10, it is convenient for workers to connect the screw 2 and the lifting ring 1. The top of the first flange 10 is provided with a graphite gasket 11. By setting the graphite gasket 11, the deformation difference caused by the thermal expansion of the two flanges can be compensated.

[0027] A second flange 12 is provided on the top of the graphite gasket 11. A connecting bolt 13 is provided inside the second flange 12. By providing the connecting bolt 13, it is easy to position and connect the two flanges.

[0028] The graphite gasket 11 has a screw hole 14 inside. By setting the screw hole 14, it is easy for the staff to place the connecting bolt 13 and thus position the two flanges. The inner wall of the screw hole 14 is connected to the outer thread of the connecting bolt 13.

[0029] Working principle: When the operator needs to lift the electrode rod, first connect the lifting ring 1. At the same time, by rotating the screw 2, the screw 2 is stably connected to the jacking pipe 9. The two flanges are stably connected by the connecting bolt 13. Then, rotate the screw 2 so that the screw 2 enters the designated position inside the first connecting seat 51. At the same time, the cross pin 54 enters the inside of the shackle 3. Rotate the second connecting seat 53 so that the second connecting seat 53 is stably connected to the cross pin 54. Then, connect the hook 4 to the electrode rod. Through mechanical equipment, the lifting ring 1 starts to move. At the same time, this device can be installed and removed at any time without affecting the crane to carry out other work. The open hook 4 can easily lift and lower the electrode rod while ensuring strength.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the present invention 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 the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lifting device for an electrode rod used in a crane, comprising a lifting ring, characterized in that... It also includes: a screw at the bottom, a shackle at the bottom of the screw, and a hook at the bottom of the shackle; a connecting assembly at the bottom of the screw, the connecting assembly including a first connecting seat threaded to the outside of the screw, a rotating ball rotatably connected inside the first connecting seat, a second connecting seat fixedly connected to the outside of the rotating ball, and a cross pin threaded to the bottom of the second connecting seat.

2. The electrode rod lifting device for a traveling vehicle according to claim 1, characterized in that: A first positioning nut is provided on the outer side of the horizontal pin, and an anti-slip sleeve is provided on the outer side of the screw.

3. The electrode rod lifting device for a crane according to claim 1, characterized in that: The screw has a second positioning nut threaded on its outer side, and a top tube is also threaded on its outer side.

4. The electrode rod lifting device for a traveling vehicle according to claim 3, characterized in that: The top of the jacking pipe is fixedly connected to a first flange, and a graphite gasket is provided on the top of the first flange.

5. The electrode rod lifting device for a traveling vehicle according to claim 4, characterized in that: The graphite gasket is provided with a second flange on its top, and a connecting bolt is provided inside the second flange.

6. The electrode rod lifting device for a traveling vehicle according to claim 4, characterized in that: The graphite gasket has a screw hole inside, and the inner wall of the screw hole is threaded to the outer side of the connecting bolt.

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