Semi-automatic replacement of nylon rod backrest wheel device for aluminum electrolysis anode lifter

Abstract

The utility model relates to electrolytic aluminium technical field especially relates to a kind of aluminium electrolysis anode hoist semi-automatic replacement nylon stick backrest wheel device.A kind of aluminium electrolysis anode hoist semi-automatic replacement nylon stick backrest wheel device, comprising: flange, including first flange and second flange, the first flange and the second flange are equipped with same several holes, nylon stick is connected two flanges in each hole, part or all nylon stick is fastened with M12 screw;Shaft sleeve, including perpendicular to the first flange first shaft sleeve, perpendicular to the second flange second shaft sleeve;Insulating gasket, the insulating gasket is located between the first flange and the second flange.The utility model is reinforced by diagonal nylon stick M12 screw, insulation board isolation and gasket anti-looseness etc. design, reduce backrest wheel clearance and vibration, prolong nylon stick life, improve equipment running stability and insulation safety, while simplifying maintenance process, reduce artificial cost.

Description

Technical Field

[0001] This utility model relates to the field of aluminum electrolysis technology, and in particular to a semi-automatic nylon rod back wheel replacement device for an aluminum electrolysis anode lifting machine. Background Technology

[0002] In the aluminum electrolysis industry, the anode elevator is a crucial piece of equipment, and its stable operation plays a key role in the continuity and efficiency of aluminum electrolysis production. The reducer and reversing gearbox of the anode elevator are typically connected by a back-to-back wheel, with power transmitted via nylon pins.

[0003] In existing technology, each set of backrest wheels uses nylon pins to transmit force. However, this connection structure has significant drawbacks. During the actual operation of the anode lift, due to frequent start-ups and shutdowns and vibrations generated during operation, the nylon pins are subjected to alternating stress for extended periods. On the one hand, the nylon pins are prone to wear and breakage, leading to a gradual increase in the gap between the backrest wheels, which in turn affects the stability and transmission accuracy of the equipment. On the other hand, when the nylon pins are damaged and need replacement, the replacement operation is complex due to its inadequate installation structure design, often requiring significant manpower and time, increasing equipment maintenance costs and downtime, and severely impacting production efficiency.

[0004] To address these issues, some existing technologies attempt to improve the backrest wheel connection structure, such as by installing an insulating plate between the backrest wheels or by specially treating connecting components like bolts. However, these improvements do not fundamentally solve the problems of easily damaged nylon pins and inconvenient replacement. Utility Model Content

[0005] The purpose of this utility model is to provide a semi-automatic nylon rod back wheel replacement device for an aluminum electrolysis anode lifting machine, so as to isolate the heat radiation of high-temperature molten iron, improve the reliability of the equipment, reduce maintenance difficulty and cost, and improve the overall efficiency of aluminum electrolysis production.

[0006] A semi-automatic nylon rod backrest wheel replacement device for an aluminum electrolysis anode lifting machine includes:

[0007] A flange, including a first flange and a second flange, wherein the first flange and the second flange are provided with a plurality of identical holes, and each hole is provided with a nylon rod for fixing the first flange and the second flange, and all or part of the nylon rods are fixedly connected by M12 screws.

[0008] The bushing includes a first bushing and a second bushing, wherein the first bushing is perpendicular to the first flange and the second bushing is perpendicular to the second flange;

[0009] An insulating plate, wherein the insulating gasket is located between the first flange and the second flange.

[0010] Furthermore, the first bushing and the first flange are integrally formed, and the second bushing and the second flange are integrally formed.

[0011] Furthermore, the M12 screw is characterized by having washers at both ends.

[0012] Furthermore, the gasket consists of two flat gaskets and one spring gasket, with the spring gasket located between the two flat gaskets.

[0013] Furthermore, the spring washer is made of rubber.

[0014] Furthermore, the first flange and the second flange have a total of 6 holes, which are evenly distributed in a circular pattern, and the number of nylon rods is 6.

[0015] Furthermore, the nylon rods inside any pair of corners of the holes in the first flange and the second flange are fixedly connected with M12 screws.

[0016] Furthermore, the insulating board is made of epoxy resin and has a thickness of 3-10mm.

[0017] Furthermore, the surface of the M12 screw is provided with an insulating coating to enhance its insulation performance.

[0018] Furthermore, the first flange and the second flange are made of No. 45 steel, and the surface has been quenched to a hardness of HRC40-45.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. Significantly Improved Equipment Operation Reliability: By reinforcing the nylon pins at diagonal positions with M12 screws, the backrest wheel's clearance and displacement during rotation are effectively reduced, enhancing concentricity. Actual testing shows that the radial runout of the backrest wheel is reduced by over 60% after reinforcement, the abnormal vibration frequency of the equipment is reduced by 85%, and the service life of the nylon pins is significantly extended (average life increased from 3 months to over 12 months). The addition of insulating gaskets not only blocks shaft current, preventing component damage due to current corrosion, but also further enhances connection stability. Third-party testing shows that the insulation resistance value reaches over 10MΩ, meeting the safe operation requirements of the electrolysis equipment.

[0021] 2. Significantly Reduced Maintenance Costs and Downtime: The semi-automatic replacement design of this invention reduces the replacement time of nylon rod pins from 4 hours using traditional methods to less than 1 hour, allowing for operation by a single person and reducing maintenance time by approximately 75%. The reduced frequency of nylon rod pin replacements and improved maintenance efficiency decrease the annual downtime of the anode elevator from approximately 480 hours to less than 120 hours, significantly improving equipment utilization. It is estimated that this will increase the economic benefits of a single electrolysis production line by approximately 2 million yuan annually.

[0022] 3. Optimized Structural Design and Manufacturing Process: The integrated molding design of the flange and bushing simplifies the processing, reduces assembly errors, and improves the overall strength of the components. Finite element analysis verifies that the structural stiffness is increased by 40%, and the stress distribution is more uniform. The combination of flat washers and spring washers at both ends of the M12 screw effectively prevents bolt loosening and improves connection reliability. In simulated vibration tests, the bolt loosening rate decreased from 25% in traditional structures to below 3%. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 Diagram of a semi-automatic nylon rod replacement back wheel device for an aluminum electrolysis anode lifting machine;

[0025] Figure 2 Rear view of the semi-automatic nylon rod replacement back wheel device for an aluminum electrolysis anode lifting machine;

[0026] Figure 3 Front view of the semi-automatic nylon rod replacement back wheel device for an aluminum electrolysis anode lifting machine;

[0027] Figure 4 Disassembly diagram of the semi-automatic nylon rod replacement back wheel device for an aluminum electrolysis anode lifting machine;

[0028] Figure 5 Enlarged view of the nylon rod used to reinforce M12 screws;

[0029] Among them: flange 1, bushing 2, insulating plate 3, nylon rod 4, first flange 11, second flange 12, first bushing 21, second bushing 22, M12 screw 41, insulating gasket 42, M12 bolt 43, flat gasket 421, spring gasket 422. Detailed Implementation

[0030] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] The following is in conjunction with the appendix Figure 1 To be continued Figure 5 The present invention will be described in detail with reference to specific embodiments:

[0032] like Figure 1-5 As shown, a semi-automatic nylon rod backrest wheel replacement device for an aluminum electrolysis anode lifting machine includes:

[0033] Flange 1 includes a first flange 11 and a second flange 12. Both the first flange 11 and the second flange 12 are annular metal plates with the same number of holes. The holes are evenly distributed around the circumference and their diameter is adapted to the nylon rod 4. A nylon rod 4 is inserted into each hole to fix the first flange 11 and the second flange 12. All or part of the nylon rod 4 is fastened to the flange by an M12 screw 41 that passes through its center, so as to achieve rigid constraint on the gap of the backrest wheel. The M12 screw is generally fixed by drilling into the nylon rod with an electric drill.

[0034] The bushing 2 includes a first bushing 21 vertically fixed to the center of the first flange 11 and a second bushing 22 vertically fixed to the center of the second flange 12. The first bushing 21 and the first flange 11, and the second bushing 22 and the second flange 12 are all integrally formed structures, used to interfere with the drive shaft of the anode lifting machine to transmit torque and ensure coaxiality. The integral forming process of forging improves the overall structural rigidity and reduces stress concentration.

[0035] The insulating plate 3 is an epoxy resin ring plate with a thickness of 3-10mm. It is located between the first flange 11 and the second flange 12. A through hole 31 is provided at the corresponding flange hole position to isolate the electrical connection between the two flanges, prevent shaft current corrosion, and at the same time help enhance the stability of the connection structure.

[0036] Furthermore, washer assemblies 42 are provided at both ends of the M12 screw 41 to enhance the reliability of the bolt connection.

[0037] Furthermore, the gasket assembly 42 consists of two flat gaskets 421 and a spring gasket 422, wherein the spring gasket 422 is made of rubber and is sandwiched between the two flat gaskets 421, providing continuous preload through elastic deformation to prevent the bolt from loosening.

[0038] Furthermore, the first flange 11 and the second flange 12 each have six holes, evenly distributed in a circular pattern at 60° intervals, corresponding to the mounting of six nylon rods 4, forming a symmetrical force transmission structure. The nylon rods 4 within any pair of diagonal holes of the first flange 11 and the second flange 12 are fixedly connected using M12 screws 41, eliminating the backrest wheel rotation gap through diagonal rigid support and enhancing concentricity.

[0039] Furthermore, the epoxy resin material of the insulating plate 3 has high insulation performance (resistance ≥10MΩ) and corrosion resistance, and the thickness is selected from 3-10mm according to the mechanical strength requirements to ensure long-term stable isolation between the two flanges.

[0040] Furthermore, the screw surface of the M12 screw 41 is coated with an insulating coating (such as epoxy powder) with a thickness of 0.1-0.3 mm, which, together with the insulating plate 3, further blocks the current conduction path.

[0041] Furthermore, the first flange 11 and the second flange 12 are made of 45 steel, and the surface is hardened to HRC40-45 after quenching treatment, which improves wear resistance and fatigue resistance and extends the service life of the components.

[0042] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A semi-automatic nylon rod backrest wheel replacement device for an aluminum electrolysis anode lifting machine, characterized in that, include: A flange, including a first flange and a second flange, wherein the first flange and the second flange are provided with a plurality of identical holes, and each hole is provided with a nylon rod for fixing the first flange and the second flange, and all or part of the nylon rods are fixedly connected by M12 screws. The bushing includes a first bushing and a second bushing, wherein the first bushing is perpendicular to the first flange and the second bushing is perpendicular to the second flange; An insulating gasket is located between the first flange and the second flange.

2. The semi-automatic nylon rod backrest wheel replacement device for the aluminum electrolysis anode lifting machine according to claim 1, characterized in that, The first bushing and the first flange are integrally formed, and the second bushing and the second flange are integrally formed.

3. The semi-automatic nylon rod backrest wheel replacement device for the aluminum electrolysis anode lifting machine according to claim 1, characterized in that, The M12 screw has washers at both ends.

4. The semi-automatic nylon rod backrest wheel replacement device for the aluminum electrolysis anode lifting machine according to claim 3, characterized in that, The gasket consists of two flat gaskets and one spring gasket, with the spring gasket located between the two flat gaskets.

5. The semi-automatic nylon rod backrest wheel replacement device for the aluminum electrolysis anode lifting machine according to claim 4, characterized in that, The spring washer is made of rubber.

6. The semi-automatic nylon rod backrest wheel replacement device for the aluminum electrolysis anode lifting machine according to claim 1, characterized in that, The first flange and the second flange have a total of 6 holes, which are evenly distributed in a circular pattern, and the number of nylon rods is 6.

7. The semi-automatic nylon rod backrest wheel replacement device for the aluminum electrolysis anode lifting machine according to claim 6, characterized in that, The nylon rods inside any pair of corners of the holes in the first flange and the second flange are fixedly connected with M12 screws.

8. The semi-automatic nylon rod backrest wheel replacement device for the aluminum electrolysis anode lifting machine according to claim 1, characterized in that, The insulating gasket is made of epoxy resin and has a thickness of 3-10mm.

9. The semi-automatic nylon rod backrest wheel replacement device for the aluminum electrolysis anode lifting machine according to claim 1, characterized in that, The M12 screw has an insulating coating on its screw surface to enhance its insulation performance.

10. The semi-automatic nylon rod backrest wheel replacement device for the aluminum electrolysis anode lifting machine according to claim 1, characterized in that, The first flange and the second flange are made of No. 45 steel and have been hardened to a hardness of HRC40-45.

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