Outer clamping type graphite electrode fishing clamp

Abstract

The utility model belongs to the technical field of machining equipment, and particularly discloses an external clamping type graphite electrode fishing clamp which comprises a hanging ring, a spring rod is arranged at the bottom of the hanging ring, a spring is arranged at the lower end of the spring rod, an upper side connecting rod is arranged at the bottom of the spring rod, and a connecting rod structure is arranged below the upper side connecting rod. A grabbing arm support is arranged at the bottom of the connecting rod structure, and a grabbing arm is arranged on the grabbing arm support. The external clamping type graphite electrode fishing clamp is simple in structure, convenient to maintain, reliable to use, convenient to machine, low in manufacturing cost and high in practical value, and has good market application prospects.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing equipment, and in particular relates to an external clamping type graphite electrode salvaging clamp. Background Art

[0002] In the production of steelmaking refining furnaces, the consumption of graphite electrodes includes burning and peeling under normal conditions, as well as abnormal electrode breakage. The breakage of graphite electrodes is mainly caused by the breakage of weak points such as electrode joints under the action of various mechanical forces. Once the electrode breaks, one or even several electrodes will be directly scrapped, resulting in huge losses. At the same time, when the electrode breaks, it is very difficult to handle, which increases the labor intensity of the staff and even interrupts production. What's more, improper handling may cause casualties. After the electrode breaks, the electrode on the lower side of the joint falls into the molten steel in the ladle, and the upper part leans against the refining furnace cover. The ladle car cannot be driven out of the work station. The operator needs to go up to the top of the refining furnace cover, pass the graphite electrode with an iron chain, and then use the overhead crane to lift the broken electrode out of the ladle. The safety risk is extremely high and the disposal process is cumbersome, which affects the production rhythm. Utility Model Content

[0003] The utility model aims to solve the above technical problems and provide a graphite electrode salvage clamp device which has simple structure, good synchronization, convenient maintenance and convenient on-site operation.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] An externally clamped graphite electrode salvage clamp comprises a lifting ring, a spring rod is provided at the bottom of the lifting ring, a spring is provided at the lower end of the spring rod, an upper connecting rod is provided at the bottom of the spring rod, a connecting rod structure is provided below the upper connecting rod, a grab arm support is provided at the bottom of the connecting rod structure, and a grab arm is provided on the grab arm support.

[0006] Preferably, the connecting rod structure includes a left connecting rod and a right connecting rod, the two ends of the upper connecting rod are movably connected with the left connecting rod and the right connecting rod respectively, the bottom of the spring is movably connected with the left pull rod and the right pull rod, one end of the left pull rod and the right pull rod are movably connected, the other end of the left pull rod is movably connected to the left connecting rod, and the other end of the right pull rod is movably connected to the right connecting rod, and grab arm supports are provided at the bottom of the left connecting rod and the right connecting rod.

[0007] Preferably, the grab arm support is connected to the left connecting rod and the right connecting rod through threads.

[0008] Preferably, reinforcing ribs are provided at the connection between the grab arm support and the left connecting rod and the right connecting rod.

[0009] Preferably, the grabbing arm support is threadedly connected to the grabbing arm.

[0010] The beneficial effects of the utility model are:

[0011] (1) The application of the externally clamped graphite electrode salvage clamp of the utility model solves the safety defects that the operator needs to stand on the cover of the refining furnace and needs two people to work together during the graphite electrode salvage process, and the behavior of the personnel is uncontrollable. In addition, the graphite electrode is tilted during use, and the eccentric gripping arm can realize online clamping, which is easy to operate. The emergency response capability of accidents is improved, the accident handling time is effectively controlled, and the operation can be completed by one overhead crane operator, and the safety of personnel is guaranteed.

[0012] (2) The utility model external clamp type graphite electrode salvage clamp has a simple structure, is easy to maintain, and is reliable to use. It is easy to process, has a low manufacturing cost, and has high practical value, and has a good market application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the external clamping graphite electrode salvage clamp of the utility model;

[0014] Figure 2 It is a schematic diagram of the grab arm support structure;

[0015] Figure 3 It is a schematic diagram of the grab arm structure;

[0016] Figure numerals: 1, lifting ring; 2, spring rod; 3, upper connecting rod; 4, spring; 5, left connecting rod; 6, right connecting rod; 7, left pull rod; 8, right pull rod; 9, grab arm; 10, grab arm support; 11, reinforcement rib. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0018] like Figure 1-3The externally clamped graphite electrode salvage clamp shown in the figure comprises a lifting ring, a spring rod 2 is provided at the bottom of the lifting ring 1, a spring 4 is provided at the lower end of the spring rod 2, an upper connecting rod 3 is provided at the bottom of the spring rod 2, a connecting rod structure is provided below the upper connecting rod 3, a grab arm support 10 is provided at the bottom of the connecting rod structure, and a grab arm 9 is provided on the grab arm support 10. The connecting rod structure comprises a left connecting rod 5 and a right connecting rod 6, the two ends of the upper connecting rod 3 are respectively connected with the left connecting rod 5 and the right connecting rod 6 by a pin, the bottom of the spring 4 is connected with a left tie rod 7 and a right tie rod 8 by a pin, one end of the left tie rod 7 and the right tie rod 8 are connected by a pin, the other end of the left tie rod 7 is connected with the left connecting rod 5 by a pin, the other end of the right tie rod 8 is connected with the right connecting rod 6 by a pin, and a grab arm support 10 is provided at the bottom of the left connecting rod 5 and the right connecting rod 6. The grab arm support 10 is connected to the left connecting rod 5 and the right connecting rod 6 by a thread. A reinforcing rib 11 is provided at the connection between the grab arm support 10 and the left connecting rod 5 and the right connecting rod 6 , and the grab arm support 10 is threadedly connected to the grab arm 9 .

[0019] like Figure 1 The assembly process of the utility model shown is: the lifting ring 1 is welded to the end of the spring rod 2, the spring 4 is inserted into the spring rod 2, the spring rod 2 passes through the middle hole of the upper connecting rod 3, the upper connecting rod 3, the left connecting rod 5, the right connecting rod 6, the left pull rod 7 and the right pull rod 8 are connected by a pin to form a connecting rod mechanism, the grab arm 8 is threadedly connected to the grab arm support 10, and the grab arm support 10 is connected to the left connecting rod 5 and the right connecting rod 6 by bolts for easy disassembly and assembly.

[0020] When in use, the lifting ring 1 is connected to the overhead crane hook, and then the operator raises the overhead crane hook, and then uses the lifting ring 1 to pull the spring rod 2, the connecting rod mechanism contracts, and the grab arm 9 is tightened. The grab arm 9 is clamped on the outside of the electrode. When the entire device is lifted along the Y direction, it can effectively prevent the electrode from slipping. At the same time, it can automatically and flexibly clamp according to the diameter of the electrode without adjusting or replacing the clamp. It is characterized by simple structure, good synchronization, easy maintenance and convenient on-site operation.

Claims

1. An externally clamped graphite electrode fishing clamp, comprising a lifting ring, characterized in that: A spring rod (2) is provided at the bottom of the lifting ring (1), a spring (4) is provided at the lower end of the spring rod (2), an upper connecting rod (3) is provided at the bottom of the spring rod (2), a connecting rod structure is provided below the upper connecting rod (3), a grabbing arm support (10) is provided at the bottom of the connecting rod structure, and a grabbing arm (9) is provided on the grabbing arm support (10).

2. The externally clamped graphite electrode salvage clamp according to claim 1, characterized in that: The connecting rod structure comprises a left connecting rod (5) and a right connecting rod (6), the two ends of the upper connecting rod (3) are movably connected to the left connecting rod (5) and the right connecting rod (6) respectively, the bottom of the spring (4) is movably connected to the left pull rod (7) and the right pull rod (8), one end of the left pull rod (7) and the right pull rod (8) are movably connected, the other end of the left pull rod (7) is movably connected to the left connecting rod (5), and the other end of the right pull rod (8) is movably connected to the right connecting rod (6), and the bottom of the left connecting rod (5) and the right connecting rod (6) are provided with grab arm supports (10).

3. The externally clamped graphite electrode salvage clamp according to claim 1, characterized in that: The grab arm support (10) is connected to the left connecting rod (5) and the right connecting rod (6) via threads.

4. The externally clamped graphite electrode salvage clamp according to claim 2, characterized in that: A reinforcing rib (11) is provided at the connection between the grab arm support (10) and the left connecting rod (5) and the right connecting rod (6).

5. The externally clamped graphite electrode salvage clamp according to claim 1, characterized in that: The grab arm support (10) is threadedly connected to the grab arm (9).

Images