Dual anode synchronous lifting device, synchronous method and aluminum electrolysis multifunctional overhead travelling crane

Abstract

The application discloses a double-anode synchronous lifting device, a synchronous method and an aluminum electrolysis multifunctional crown block. The device comprises a first base, a second base, a rack pin shaft, a servo motor, a first sensor and a PLC control unit. The other end of the rack pin shaft is movably arranged in a second shaft hole. The device is provided with a movable hard connection double-anode synchronous lifting device between two anode mechanisms, so that the two anode mechanisms can be operated singly or in linkage. The device has simple structure, clear control logic and convenient installation, can greatly improve the synchronism of the double-anode mechanism, reduce errors, ensure that the anode shell surface is not broken, reduce the labor intensity of workers, improve the production organization efficiency, eliminate safety hazards, and has low manufacturing, using and maintenance costs and high reliability. The device overcomes the defects of low control precision and high technical difficulty of related devices in the prior art.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of aluminum electrolysis multifunctional crown block, and particularly relates to a double-anode synchronous lifting device, a synchronous method and an aluminum electrolysis multifunctional crown block. BACKGROUND

[0002] During use, the aluminum electrolysis multifunctional crown block uses a double-anode lifting mechanism to perform anode replacement operation, and each time a group (two) of anodes is replaced. The double-anode lifting mechanism needs to be synchronously lifted to perform anode hoisting operation. At present, double-anode synchronous operation is mainly controlled by a hydraulic electromagnetic valve (hereinafter referred to as a synchronous valve) to ensure the synchronization of the mechanism, but the following problems mainly exist during use:

[0003] 1. During the control process of the hydraulic synchronous valve, the control precision is low, and after the mechanism runs to the end point, the distance error of the two mechanisms can reach 50 mm at the maximum, and the general error is 10-30 mm;

[0004] 2. The service life of the synchronous valve is short, and after the valve core is worn, the error increases, the synchronization of the mechanism becomes poor, and the maintenance and replacement cost is high;

[0005] 3. After the error increases, the mechanisms are out of synchronization, the residual anodes are not synchronized due to the shell surface being connected together, which can cause the shell surface to be broken, the high-temperature electrolyte and the covering material to be spilled, increase the work amount of personnel cleaning, and the high-temperature spilled material can easily scald the operating personnel, which exists a safety hazard;

[0006] 4. At present, the hydraulic control error cannot be temporarily reduced to below 10 mm, the displacement control requires a high cost and a large technical difficulty, and meanwhile increases the maintenance difficulty and cost. SUMMARY

[0007] The present application aims to at least solve one of the problems in the related art. To this end, the present application aims to provide a double-anode synchronous lifting device, a synchronous method and an aluminum electrolysis multifunctional crown block. The device is provided with a movable hard connection double-anode synchronous lifting device between two anode mechanisms, so that the two anode mechanisms can be single-actuated and linked. The device has a simple structure, clear control logic and convenient installation, can greatly improve the synchronization of the double-anode mechanism, reduce the error, ensure that the anode shell surface is not broken, reduce the labor intensity of the operating personnel, improve the production organization efficiency, eliminate the safety hazard, and has low manufacturing, using and maintenance cost, high reliability, and overcomes the shortcomings of the prior art, such as low control precision and large technical difficulty of the related device.

[0008] In one aspect of the present application, the present application provides a double-anode synchronous lifting device. According to the embodiments of the present application, the double-anode synchronous lifting device comprises:

[0009] a first base provided on a first anode guide rail, and provided with a first shaft hole;

[0010] A second base is arranged on the second anode guide rail, and a second shaft hole is arranged on the second base, and the first shaft hole and the second shaft hole are arranged on the same horizontal line.

[0011] A rack pin shaft is movably arranged in the first shaft hole at one end, and movably arranged in the second shaft hole at the other end, and a rack groove is arranged on the rack pin shaft.

[0012] A servo motor is fixed on the second anode guide rail, and a gear is connected to the servo motor, and the gear is engaged with the rack groove.

[0013] A first sensor is arranged on the first base, and the first sensor corresponds to the limit position of the rack pin shaft moving in the direction of the first sensor.

[0014] A PLC control unit is connected to the servo motor and the first sensor through electrical signals.

[0015] The double-anode synchronous lifting device according to the embodiment of the present application is arranged between two anode mechanisms, and a movable hard connection is arranged between the two anode mechanisms, so that the two anode mechanisms can be moved independently and in linkage. The device has simple structure, clear control logic, and convenient installation, can greatly improve the synchronization of the double-anode mechanism, reduce errors, ensure that the anode shell surface is not broken, reduce the labor intensity of workers, improve the production organization efficiency, eliminate safety hazards, and has low manufacturing, using and maintenance costs and high reliability. The device overcomes the shortcomings of low control precision and high technical difficulty of related devices in the prior art. In addition, the device as an auxiliary control improves the precision of the existing hydraulic control system, reduces errors, and further ensures the synchronization of the mechanism.

[0016] In addition, the double-anode synchronous lifting device according to the above-mentioned embodiment of the present application can further have the following additional technical features:

[0017] In some embodiments of the present application, a second sensor is arranged on the second base, and the second sensor corresponds to the limit position of the rack pin shaft moving in the direction of the second sensor, and the second sensor is connected to the PLC control unit through electrical signals.

[0018] In some embodiments of the present application, the first shaft hole and the second shaft hole have the same height in the vertical direction.

[0019] In some embodiments of the present application, the height h1 of the first shaft hole in the vertical direction is 55-65 mm.

[0020] In some embodiments of the present application, the height h2 of the rack pin shaft in the vertical direction is not greater than the height h1 of the first shaft hole in the vertical direction.

[0021] In some embodiments of the present application, the difference between the height h1 of the first shaft hole in the vertical direction and the height h2 of the rack pin shaft in the vertical direction is not greater than 1.5 mm.

[0022] In some embodiments of the present application, the length of the rack pin shaft is greater than the sum of d and a1, where d is the distance between the first base and the second base, and a1 is the distance between the first sensor and the end of the first base close to the second base.

[0023] In some embodiments of the present application, the length of the rack pin shaft is less than the sum of d and a2, where a2 is the distance between the second sensor and the end of the second base close to the first base.

[0024] In a second aspect of the present application, an aluminum electrolysis multifunctional crown is provided. According to embodiments of the present application, the aluminum electrolysis multifunctional crown has the double-anode synchronous lifting device described in the above embodiments. Thus, the aluminum electrolysis multifunctional crown has all the advantages of the double-anode synchronous lifting device, which will not be repeated here.

[0025] In a third aspect of the present application, a method for synchronous lifting using the double-anode synchronous lifting device described in the above embodiments is provided. According to embodiments of the present application, the method comprises:

[0026] (1) the PLC control unit sends a locking signal and transmits it to the servo motor;

[0027] (2) the servo motor drives the gear under the control of the locking signal, so as to drive the rack pin shaft to move in the direction of the first shaft hole;

[0028] (3) the end of the rack pin shaft away from the second base is inserted into the first shaft hole, when it moves to the position of the first sensor, the first sensor sends a signal to the PLC control unit, so as to make the PLC control unit control the servo motor to stop driving the rack pin shaft to move, and the two anode mechanisms are successfully locked;

[0029] (4) the two anode mechanisms are operated synchronously;

[0030] (5) after the operation is completed, the PLC control unit sends an unlocking signal, and the servo motor drives the gear under the control of the unlocking signal, so as to drive the rack pin shaft to move in the direction away from the first shaft hole;

[0031] (6) When the rack pin shaft is extracted from the first shaft hole, the unlocking is successful, and the two anode mechanisms can be operated independently.

[0032] According to the method of the embodiment of the present application, the two anode mechanisms can be operated independently and in linkage through the movable hard connection double-anode synchronous lifting device arranged between the two anode mechanisms, the control logic is clear, the double-anode mechanism synchronism can be greatly improved, the error is reduced, the anode shell surface is ensured not to be broken, the labor intensity of the operating personnel is reduced, the production organization efficiency is improved, the safety hidden danger is eliminated, and the reliability is high.

[0033] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0034] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings, in which:

[0035] Figure 1 is a sectional view of a double-anode synchronous lifting device according to an embodiment of the present application;

[0036] Figure 2 is a structural schematic view of two anode mechanisms in hard connection according to an embodiment of the present application;

[0037] wherein 100 is a double-anode synchronous lifting device, 200 is a first anode mechanism, 300 is a second anode mechanism, 1 is a first base, 2 is a first shaft hole, 3 is a first sensor, 4 is a rack pin shaft, 5 is a tooth groove, 6 is a servo motor, 7 is a gear, 8 is a second base, 9 is a second shaft hole, 10 is a second sensor, 201 is a first anode guide rail, and 301 is a second anode guide rail. DETAILED DESCRIPTION

[0038] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0039] In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the reactor or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0040] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0041] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0042] In one aspect of the present application, a double-anode synchronous lifting device is provided. According to an embodiment of the present application, referring to the accompanying drawings, Figure 1 The double-anode synchronous lifting device 100 comprises a first base 1, a second base 8, a rack pin 4, a servo motor 6, a first sensor 3 and a PLC control unit.

[0043] In an embodiment of the present application, referring to the accompanying drawings, Figure 1 and 2, a first base 1, the first base 1 is arranged on a first anode guide rail 201 of a first anode mechanism 200, and a first shaft hole 2 is arranged on the first base 1. As a specific example, the first base 1 includes two upper and lower base walls, the first shaft hole 2 is formed between the two upper and lower base walls, and an end surface of the first base 1 close to the second base 8 is not provided with a base wall, so as to facilitate the rack pin shaft 4 to be inserted into the first shaft hole 2.

[0044] In the embodiments of the present application, reference is made to the accompanying drawings Figure 1 and 2 , a second base 8, the second base 8 is arranged on a second anode guide rail 301 of a second anode mechanism 300, and a second shaft hole 9 is arranged on the second base 8, the first shaft hole 2 and the second shaft hole 9 are arranged on the same horizontal line. As a specific example, the second base 8 includes two upper and lower base walls, the second shaft hole 9 is formed between the two upper and lower base walls, and an end surface of the second base 8 close to the first base 1 is not provided with a base wall, so as to facilitate the rack pin shaft 4 to be inserted into the second shaft hole 9. The first shaft hole 2 and the second shaft hole 9 are used to fix the rack pin shaft 4.

[0045] According to a specific embodiment of the present application, the first shaft hole 2 and the second shaft hole 9 have the same height in the vertical direction, thereby further facilitating the rack pin shaft 4 and the shaft hole to be precisely matched, accurately positioned, high in machining precision and small in running resistance. As a specific example, the height h1 of the first shaft hole 2 in the vertical direction is 55-65mm.

[0046] In the embodiments of the present application, reference is made to the accompanying drawings Figure 1 , a rack pin shaft 4, one end of the rack pin shaft 4 is movably arranged in the first shaft hole 2, the other end of the rack pin shaft 4 is movably arranged in the second shaft hole 9, and a tooth groove 5 is arranged on the rack pin shaft 4.

[0047] According to another specific embodiment of the present application, the height h2 of the rack pin shaft 4 in the vertical direction is not greater than the height h1 of the first shaft hole 2 in the vertical direction, thereby facilitating the rack pin shaft 4 and the shaft hole to be precisely matched, accurately positioned, high in machining precision and small in running resistance.

[0048] According to still another specific embodiment of the present application, the difference between the height h1 of the first shaft hole 2 in the vertical direction and the height h2 of the rack pin shaft 4 in the vertical direction is not greater than 1.5mm, thereby further facilitating the rack pin shaft 4 and the shaft hole to be precisely matched, accurately positioned, high in machining precision and small in running resistance.

[0049] In the embodiments of the present application, reference is made to the accompanying drawings Figure 1, a servo motor 6, the servo motor 6 is fixed on the second anode guide rail, and the servo motor 6 is connected with a gear 7, the gear 7 is engaged with the gear slot 5. The servo motor 6 can control the speed, the position accuracy is very accurate, can convert the voltage signal into torque and speed to drive the control object; the servo motor 6 rotor speed is controlled by the input signal, and can quickly react, in the automatic control system, is used as an execution element, and has small electromechanical time constant, high linearity and other characteristics, can convert the received electrical signal into angular displacement or angular velocity output on the motor shaft.

[0050] In the embodiment of the present application, reference is made to the accompanying drawings Figure 1 , a first sensor 3, the first sensor 3 is arranged on the first base 1, and the first sensor 3 corresponds to the limit position of the rack pin shaft 4 moving to the direction where the first sensor 3 is located. The function of the first sensor 3 is to sense whether the rack pin shaft 4 moves to the position where the first sensor 3 is located, if the first sensor 3 senses the rack pin shaft 4, the first sensor 3 sends a signal to the PLC control unit to make the PLC control unit control the servo motor 6 to stop driving the rack pin shaft 4 to move, and the two anode mechanisms are successfully locked.

[0051] According to another specific embodiment of the present application, the length of the rack pin shaft 4 is greater than the sum of d and a1, the d is the distance between the first base 1 and the second base 8, and the a1 is the distance between the first sensor 3 and the end of the first base 1 close to the second base 8, so that when the rack pin shaft 4 moves to the position corresponding to the first sensor 3, the rack pin shaft 4 connects the two anode mechanisms, thereby realizing the synchronous operation of the two anode mechanisms.

[0052] In the embodiment of the present application, reference is made to the accompanying drawings Figure 1 , a PLC control unit, the PLC control unit is connected with the servo motor 6 and the first sensor 3 through electrical signals respectively. The function of the PLC control unit is to control the servo motor 6 to drive the gear 7 in the forward direction or the reverse direction, so as to drive the rack pin shaft 4 to move in the horizontal direction. At the same time, the PLC control unit can also receive the signals fed back by the first sensor 3 and the second sensor, and control the servo motor 6 according to the feedback signals.

[0053] Further, reference is made to the accompanying drawings Figure 1The device further comprises a second sensor 10 arranged on the second base 8, and the second sensor 10 corresponds to the limit position of the rack pin shaft 4 moving to the direction where the second sensor 10 is located, and the second sensor 10 is connected to the PLC control unit through an electrical signal. The function of the second sensor 10 is to sense whether the rack pin shaft 4 has moved to the position of the second sensor 10. If the second sensor 10 senses the rack pin shaft 4, the second sensor 10 sends a signal of successful unlocking to the PLC control unit, so as to make the PLC control unit control the servo motor 6 to stop driving the rack pin shaft 4 to move, and the two anode mechanisms are successfully unlocked and can be operated independently. It should be noted that when the rack pin shaft 4 moves to the position of the second sensor 10, the rack pin shaft 4 has necessarily been pulled out of the first shaft hole 2.

[0054] According to another specific embodiment of the present application, the length of the rack pin shaft 4 is less than the sum of d and a2, and the a2 is the distance from the second sensor 10 to the end of the second base 8 close to the first base 1, so as to ensure that when the rack pin shaft 4 moves to the position of the second sensor 10, the rack pin shaft 4 has necessarily been pulled out of the first shaft hole 2, thereby realizing the successful unlocking of the two anode mechanisms.

[0055] The double-anode synchronous lifting device according to the embodiment of the present application is provided with a movable hard connection between the two anode mechanisms, so that the two anode mechanisms can be operated independently and in linkage. The device has simple structure, clear control logic, and convenient installation, can greatly improve the synchronization of the double-anode mechanism, reduce errors, ensure that the anode shell surface is not broken, reduce the labor intensity of the operating personnel, improve the production organization efficiency, eliminate safety hazards, and has low manufacturing, using and maintenance cost and high reliability, and overcomes the shortcomings of low control precision and high technical difficulty of related devices of the existing structure. In addition, the device as an auxiliary control improves the precision of the existing hydraulic control system, reduces errors, and further ensures the synchronization of the mechanism.

[0056] The double-anode synchronous lifting device according to the embodiment of the present application has at least one of the following advantages:

[0057] 1) The rack pin shaft 4 and the shaft hole are precisely matched, accurately positioned, have high machining precision, and small running resistance;

[0058] 2) The gear 7 and the rack transmission occupy small space, have high transmission efficiency, and run stably;

[0059] 3) The first sensor 3 and / or the second sensor 10 are used for positioning, and the control is precise and safe, and movement out of limit is avoided to cause collision of mechanism movement;

[0060] 4) Servo motor 6 is provided with a reducer, large torque, high transmission ratio, accurate and stable motor control;

[0061] 5) The PLC control mode is advanced, the closed loop control is formed through the sensor feedback signal, the action flow is clear and reliable;

[0062] 6) The hard connection mode has high strength and reliable connection, cooperates with a hydraulic synchronous valve, and enhances the synchronization of the mechanism.

[0063] In the second aspect of the present application, the present application provides an aluminum electrolysis multifunctional crown block. According to the embodiment of the present application, the aluminum electrolysis multifunctional crown block has the double-anode synchronous lifting device described in the above embodiments. Therefore, the aluminum electrolysis multifunctional crown block has all the advantages of the double-anode synchronous lifting device, which will not be repeated here.

[0064] In the third aspect of the present application, the present application provides a method for synchronous lifting by using the double-anode synchronous lifting device described in the above embodiments. According to the embodiment of the present application, the method comprises:

[0065] (1) When it is needed to synchronously operate two anode mechanisms, first, a locking signal is sent to the servo motor 6 by the PLC control unit;

[0066] (2) The servo motor 6 drives the gear 7 under the control of the locking signal, and the gear 7 drives the rack pin shaft 4 to move towards the direction of the first shaft hole 2 through the gear groove;

[0067] (3) The end of the rack pin shaft 4 away from the second base 8 is inserted into the first shaft hole 2, and when the rack pin shaft 4 moves to the position of the first sensor 3, the first sensor 3 sends a signal to the PLC control unit, so that the PLC control unit controls the servo motor 6 to stop driving the rack pin shaft 4 to move, and the two anode mechanisms are successfully locked;

[0068] (4) The two anode mechanisms are synchronously operated and worked;

[0069] (5) After the operation and work are completed, when the two anode mechanisms need to be operated individually, the PLC control unit sends an unlocking signal, and the servo motor 6 drives the gear 7 under the control of the unlocking signal, so as to drive the rack pin shaft 4 to move away from the first shaft hole 2;

[0070] (6) When the rack pin shaft 4 is pulled out of the first shaft hole 2, the unlocking is successful, and the two anode mechanisms can be operated individually.

[0071] Further, it can also be judged whether the unlocking is successful through the signal sent by the second sensor 10. The function of the second sensor 10 is to sense whether the rack pin shaft 4 has moved to the position where the second sensor 10 is located. If the second sensor 10 senses the rack pin shaft 4, the second sensor 10 sends a signal of successful unlocking to the PLC control unit, so that the PLC control unit controls the servo motor 6 to stop driving the rack pin shaft 4 to move. The two anode mechanisms are successfully unlocked, and the two anode mechanisms can be operated independently. It should be noted that when the rack pin shaft 4 moves to the position where the second sensor 10 is located, the rack pin shaft 4 has necessarily been pulled out of the first shaft hole 2.

[0072] According to the method of the embodiment of the present application, the movable hard connection double-anode synchronous lifting device arranged between the two anode mechanisms can make the two anode mechanisms operate independently and in linkage, the control logic is clear, the synchronization of the double-anode mechanisms can be greatly improved, the error can be reduced, the anode shell surface can be ensured not to be broken, the labor intensity of the operating personnel can be reduced, the production organization efficiency can be improved, the safety hidden danger can be eliminated, and the reliability is high.

[0073] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the different embodiments or examples described in the present specification and the features of the different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0074] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A dual anode synchronous lift comprising: The utility model relates to a double anode synchronous lifting device for aluminum electrolysis multifunctional crown block, which comprises the following parts: a first base provided on a first anode guide rail, the first base being provided with a first shaft hole; a second base provided on a second anode guide rail, the second base being provided with a second shaft hole, the first shaft hole and the second shaft hole being provided on the same horizontal line; a rack pin shaft, one end of the rack pin shaft being movably provided in the first shaft hole, the other end of the rack pin shaft being movably provided in the second shaft hole, the rack pin shaft being provided with a rack groove; a servo motor, the servo motor being fixed on the second anode guide rail, the servo motor being connected with a gear, and the gear being engaged with the rack groove; a first sensor, the first sensor being provided on the first base, the first sensor corresponding to the limit position of the rack pin shaft moving in the direction of the first sensor; a PLC control unit, the PLC control unit being connected with the servo motor and the first sensor through electrical signals respectively; a second sensor, the second sensor being provided on the second base, the second sensor corresponding to the limit position of the rack pin shaft moving in the direction of the second sensor, the second sensor being connected with the PLC control unit through electrical signals; When the first sensor senses the rack pin shaft, the first sensor sends a signal to the PLC control unit, so that the PLC control unit controls the servo motor to stop driving the rack pin shaft to move, and the two anode mechanisms are successfully locked; When the second sensor senses the rack pin shaft, the second sensor sends a signal to the PLC control unit, so that the PLC control unit controls the servo motor to stop driving the rack pin shaft to move, and the two anode mechanisms are successfully unlocked.

2. The dual anode synchronous lift device of claim 1, wherein, The first shaft hole and the second shaft hole have the same height in the vertical direction.

3. The dual anode synchronous lift device of claim 2, wherein, The height h1 of the first shaft hole in the vertical direction is 55-65 mm.

4. The dual anode synchronous lift device of claim 2, wherein, The height h2 of the rack pin shaft in the vertical direction is not greater than the height h1 of the first shaft hole in the vertical direction.

5. The dual anode synchronous lift device of claim 4, wherein, The difference between the height h1 of the first shaft hole in the vertical direction and the height h2 of the rack pin shaft in the vertical direction is not greater than 1.5 mm.

6. The dual anode synchronous lift device of claim 1, wherein, The length of the rack pin shaft is greater than the sum of d and a1, d is the distance between the first base and the second base, and a1 is the distance between the first sensor and the end of the first base close to the second base.

7. The dual anode synchronous lift device of claim 6, wherein, The length of the rack pin shaft is less than the sum of d and a2, a2 being the distance between the second sensor and the end of the second base close to the first base.

8. An aluminum electrolytic multi-functional overhead crane, characterized by, The aluminum electrolysis multifunctional crown block has the double anode synchronous lifting device according to any one of claims 1-7.

9. A method of lifting using the dual anode synchronous lifting device according to any one of claims 1-7, characterized in that, The utility model relates to a double anode synchronous lifting device for aluminum electrolysis multifunctional crown block, which comprises the following parts: (1) making the PLC control unit send a locking signal and transmitting the signal to the servo motor; (2) the servo motor drives the gear under the control of the locking signal, so as to drive the rack pin shaft to move in the direction of the first shaft hole; (3) the rack pin shaft is inserted into the first shaft hole from the end away from the second base, when moving to the position of the first sensor, the first sensor sends a signal to the PLC control unit to make the PLC control unit control the servo motor to stop driving the rack pin shaft to move, and the two anode mechanisms are successfully locked; (4) the two anode mechanisms are synchronously operated; (5) after the operation is completed, the PLC control unit sends an unlocking signal, and the servo motor drives the gear under the control of the unlocking signal to move the rack pin shaft away from the first shaft hole; (6) when the rack pin shaft is extracted from the first shaft hole, the unlocking is successful, and the two anode mechanisms can be operated independently.

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