Integral repairing device for crimping surface of aluminum electrolysis anode guide rod

Abstract

The utility model discloses an integral repair device for a crimping surface of an aluminum electrolysis anode guide rod, which adopts a movable suspension clamping vertical milling machine with a safety protection frame to perform vertical milling on the welded and repaired crimping surface of the anode guide rod with a steel claw, so that the stability of the aluminum guide rod with the steel claw in the repair process can be ensured, the milling process is simplified, and the repair efficiency is improved. The milling of the crimping surface can be completed in one stroke, the roughness of the crimping surface can meet the requirement, the milling time is shortened by half compared with that of horizontal machining, and the repair efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrolysis equipment and relates to an overall repair device for the pressing surface of an aluminum electrolysis anode guide rod. Background Technique

[0002] The anode is the most crucial structural facility for the electrolytic cell to complete the electrochemical reaction process. The anode guide rod group is an important consumable part in the aluminum electrolysis system. It plays a dual role of transporting current and hanging the anode group during aluminum electrolysis production. It is composed of an aluminum guide rod, an explosion welding block, and a steel claw welded in sequence. The anode guide rod group has single anodes and double anodes. The main structures of the anode steel claws are single-row three-claw, single-row four-claw, double-row three-claw, and double-row four-claw structures. During multiple cycles of use of the anode guide rod group, due to collisions during transportation and assembly, as well as improper maintenance quality and operation during pole-changing operations, especially affected by aspects such as strengthened current and the thickness of the thermal insulation material on the pole, it leads to arc burns on the surface of the aluminum guide rod, cracking of the explosion block, and burns and erosion of the steel claw, etc. It is necessary to carry out offline maintenance, which increases the production operation cost and seriously affects the normal production of the aluminum electrolytic cell. Therefore, aiming at the reasons for the offline of the on-site anode guide rod group, formulating effective improvement measures and formulating a reasonable maintenance plan for the offline guide rod group will effectively reduce the offline rate of the anode guide rod, reduce the production cost, and reduce the impact on aluminum electrolysis production.

[0003] For the repair of the arc pit of the pressing surface of the aluminum guide rod of the double-row four-claw anode group by welding repair, one is manual grinding and repair. The surface of the manually repaired anode guide rod is relatively rough, and the contact surface gets seriously heated during use. The service life of the repaired anode guide rod group is relatively short. The other is milling processing using a traditional horizontal milling machine. It is necessary to horizontally lay down the welded anode guide rod group with steel claws and then fix it to the processing platform of the horizontal milling machine for double-sided milling. However, in this repair method, during the horizontal placement process of the anode guide rod group, safety accidents are likely to occur. During milling processing, the anode guide rod will bend and deform, and the welded part of the explosion block is prone to cracking, etc., and the repair efficiency is low. Content of the Utility Model

[0004] Aiming at the problems existing in the above background technique, the utility model innovatively develops an overall repair device for the pressing surface of an aluminum electrolysis double-row four-claw anode guide rod. A movable suspended clamping vertical milling machine with a safety protection frame is used to perform vertical milling processing on the pressing surface of the anode guide rod with steel claws that has been welded and repaired. This can not only ensure the stability of the aluminum guide rod with steel claws during the repair process but also simplify the milling process. The milling of the pressing surface can be completed in one stroke, and the roughness of the pressing surface can meet the requirements. The milling time is shortened by half compared with horizontal processing, greatly improving the repair efficiency.

[0005] The technical solution adopted by the utility model is as follows:

[0006] An overall repair device for the crimping surface of an aluminum electrolysis anode rod, comprising a portal frame. Casters are installed at the four corners of the bottom of the portal frame, and a chain block is installed at the top. A milling workbench is suspended from the chain block. The milling workbench includes a fixing plate. A lifting ring connected to the chain block is arranged at the top of the fixing plate. A driving motor is installed on the back of the fixing plate, and the driving end of the driving motor is fixedly connected to a lead screw rotatably arranged on the back of the fixing plate through a coupling. Dove-tail guide rails are installed on the left and right sides of the first lead screw, and a milling device that can move up and down along the first lead screw is slidably connected to the dove-tail guide rails; a frame body is fixed on the front of the fixing plate, and the frame body is arranged on the left and right sides of the fixing plate respectively. A tightening device is connected between the two frame bodies.

[0007] The milling device includes a sliding frame drivingly connected to the first lead screw. Chutes matching the dove-tail guide rails are symmetrically arranged inside the sliding frame. Support bodies are symmetrically arranged outside the sliding frame. A second lead screw with a handwheel at one end is rotatably arranged on the support body. A sliding seat slidably matched with the support body is drivingly connected to the second lead screw. A milling motor is fixedly installed on the sliding seat, and a milling cutter head is fixed to the driving end of the milling motor.

[0008] The tightening device includes a tightening plate. Both ends of the tightening plate are fixedly connected to the frame body through bolts, and a tightening screw rod is threadedly connected to the middle of the tightening plate.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] The double-row four-claw anode group to be repaired is set upright on the ground. The milling workbench is quickly moved to the anode group through the movable portal frame. The milling workbench and the rod of the double-row four-claw anode group can be fixed through the tightening device, and the cutting amount of the milling device is set on the milling workbench. The milling motor is started to drive the milling cutter, and the milling cutter automatically moves to mill the surface of the bus bar of the rod of the double-row four-claw anode group, and the milling effect is good; it is time-saving, labor-saving, safe and reliable in use, and the repair effect of the crimping surface is good. Description of the Drawings

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] Figure 2 is Figure 1 a side view of the milling workbench in

[0013] Figure 3 is Figure 2 the A-A structural sectional view of

[0014] Figure 4 is Figure 2 a schematic diagram of the structure of the tightening device in

[0015] Figure 5 is Figure 2Schematic structural diagram of a face milling device.

[0016] In the figure, 1 is a gantry frame, 2 is a milling workbench, 201 is a fixing plate, 202 is a lifting ring, 203 is a driving motor, 204 is a coupling, 205 is a first lead screw, 206 is a clamping device, 2061 is a clamping plate, 2062 is a clamping screw, 207 is a frame body, 3 is an anode busbar, 4 is an operation platform, 5 is a chain block, 6 is a caster, 7 is a milling device, 701 is a sliding frame, 702 is a sliding groove, 703 is a support body, 704 is a second lead screw, 705 is a handwheel, 706 is a sliding seat, 707 is a milling motor, 708 is a milling cutter head, and 8 is a pushing handrail. Detailed implementation mode

[0017] The following further explains and illustrates the present utility model with reference to the accompanying drawings.

[0018] As Figure 1 、 2 As shown in FIGS. 1, 2 and 3, the overall repair device for the crimping surface of an aluminum electrolysis anode busbar of the present utility model includes a gantry frame 1. Casters 6 are installed at the four corners of the bottom of the gantry frame 1, and a chain block 5 is installed at the top. A milling workbench 2 with a U-shaped (top view) frame structure is suspended on the chain block 5. The milling workbench 2 includes a fixing plate 201. A lifting ring 202 connected to the chain block 5 is provided at the top of the fixing plate 201. A driving motor 203 is installed on the back of the fixing plate 201. The driving end of the driving motor 203 is fixedly connected to a first lead screw 205 rotatably arranged on the back of the fixing plate 201 through a coupling 204. Dovetail guides are installed on both the left and right sides of the first lead screw 205, and a milling device 7 that can move up and down along the first lead screw 205 is slidably connected to the dovetail guides; a frame body 207 is fixed on the front of the fixing plate 201, and the frame body 207 is arranged on both the left and right sides of the fixing plate 201. A clamping device 206 is connected between the two frame bodies 207; a pushing handrail 8 is further provided outside the gantry frame 1.

[0019] As Figure 2 、 3As shown in FIGS. 4 and 5, the milling device 7 includes a sliding frame 701 drivingly connected to the first lead screw 205. Inside the sliding frame 701, symmetrically arranged chutes 702 matching the dovetail guide rails are provided. Outside the sliding frame 701, symmetrically arranged support bodies 703 are provided. A second lead screw 704 with a handwheel 705 at one end is rotatably arranged on the support body 703. A slide block 706 slidably cooperating with the support body 703 is drivingly connected to the second lead screw 704. A milling motor 707 is fixedly installed on the slide block 706, and a milling cutter head 708 is fixedly installed at the driving end of the milling motor 707. Specifically, the component structure composed of the support body 703, the second lead screw 704, the handwheel 705 and the slide block 706 can adopt a handwheel-driven self-locking lead screw slide table in the prior art to avoid fluctuations in the milling amount and inconsistent milling of the upper and lower crimping surfaces of the anode guide rod during the milling process.

[0020] As Figure 4 shown, the tightening device 206 includes a tightening plate 2061. Both ends of the tightening plate 2061 are fixedly connected to the frame body 207 by bolts, and a tightening screw rod 2062 is threadedly connected to the middle of the tightening plate 2061.

[0021] In addition, an operation platform 4 for people to stand on is further provided at the bottom of the gantry frame 1. A bottom cross bar is provided below the operation platform 4, and the bottom cross bar is installed on three sides of the gantry frame 1 to improve the overall stability of the gantry frame.

[0022] The usage method of the present utility model is as follows:

[0023] First, the operator pushes the gantry frame hanging with the milling workbench 2 to the double-row four-claw anode group to be repaired, makes the fixing plate 201 of the milling workbench 2 closely adhere to the guide rod surface of the anode group, then installs the tightening device 206, and uses the tightening screw rod 2062 to tightly fix the anode guide rod; then starts the driving motor 203 to drive the first lead screw 205 to rotate, thereby driving the milling device 7 to move to the end of the dovetail guide rail. Then starts the milling motor 707, drives the second lead screw 704 to rotate by rotating the handwheel 705, adjusts the milling cutter head 708 to the required processing position. After the adjustment is completed, starts the driving motor 203 again, drives the milling device 7 to perform a milling motion through the first lead screw 205. During the milling process, controls the rotation speed of the milling cutter head 708 through the milling motor 707, so that the milling cutter evenly mills the crimping surface of the guide rod of the double-row four-claw anode group; if the anode guide rod is relatively long, after the above milling is completed, can turn off the driving motor 203 and the milling motor 707, loosen the tightening screw rod 2062, lower the entire milling workbench 2 to the surface to be milled by using the manual hoist 5, re-tighten the tightening screw rod 2062, and repeat the above steps for milling operations.

Claims

1. An integral repair device for the crimping surface of an aluminum electrolysis anode guide rod, characterized in that: The invention comprises a door-shaped frame (1), wherein casters (6) are installed at the four corners of the bottom of the door-shaped frame (1), a hand chain hoist (5) is installed on the top, a milling workbench (2) is suspended on the hand chain hoist (5), and the milling workbench (2) comprises a fixed plate (201), a lifting ring (202) connected to the hand chain hoist (5) is arranged on the top of the fixed plate (201), and a transmission motor (203) is installed on the back of the fixed plate (201), and the driving end of the transmission motor (203) is connected to the rotating end of the fixed plate (201). A first lead screw (205) on the back side of the fixed plate (201) is fixedly connected via a coupling (204); dovetail guide rails are installed on the left and right sides of the first lead screw (205); a milling device (7) is slidably connected to the dovetail guide rails and can move up and down along the first lead screw (205); a frame body (207) is fixed on the front side of the fixed plate (201); the frame bodies (207) are arranged on the left and right sides of the fixed plate (201); and a tightening device (206) is connected between the two frame bodies (207).

2. A device for integrally repairing the crimping surface of an aluminum electrolysis anode guide rod as claimed in claim 1, characterized in that: The milling device (7) comprises a sliding frame (701) which is transmission-connected to the first lead screw (205); a slide groove (702) which matches the dovetail guide rail is symmetrically arranged on the inner side of the sliding frame (701); a bracket body (703) is symmetrically arranged on the outer side of the sliding frame (701); a second lead screw (704) having a hand wheel (705) at one end is rotatably arranged on the bracket body (703); a slide seat (706) which is slidably matched with the bracket body (703) is transmission-connected to the second lead screw (704); a milling motor (707) is fixedly mounted on the slide seat (706); and a milling cutter disc (708) is fixedly arranged on the driving end of the milling motor (707).

3. The device for integrally repairing the crimping surface of an aluminum electrolysis anode guide rod according to claim 1, characterized in that: The tightening device (206) comprises a tightening plate (2061), both ends of which are fixedly connected to the frame body (207) via bolts, and a tightening screw rod (2062) is threadedly connected to the middle of the tightening plate (2061).

4. The device for integrally repairing the crimping surface of an aluminum electrolysis anode guide rod according to claim 1, characterized in that: An operating platform (4) for people to stand on is also provided at the bottom of the door-shaped frame (1).

5. The device for integrally repairing the crimping surface of an aluminum electrolysis anode guide rod according to claim 1, characterized in that: A pushing handrail (8) is also provided on the outer side of the door-shaped frame (1).

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