Aluminum electrolysis cell cover plate correcting device and using method thereof

Abstract

The invention discloses an aluminum electrolysis cell cover plate correction device and a using method thereof, and relates to the technical field of cover plate correction, the aluminum electrolysis cell cover plate correction device comprises a frame, an inner wall cambered surface supporting plate, an outer wall cambered surface supporting plate, a moving assembly and an ejection assembly; the outer wall cambered surface supporting plate is located above the inner wall cambered surface supporting plate, and the inner wall arc-shaped guide face of the inner wall cambered surface supporting plate is opposite to the concave face of the outer wall arc-shaped binding face of the outer wall cambered surface supporting plate. The moving assembly comprises a moving seat and a transverse moving driving assembly used for moving the moving seat. The ejection assembly comprises an upper extrusion roller, a lower extrusion roller and an ejection driving assembly; the ejection driving assembly is provided with an upper telescopic end and a lower telescopic end which stretch out and draw back synchronously and reversely, and the upper telescopic end and the lower telescopic end are connected with the corresponding upper extrusion roller and the lower extrusion roller correspondingly. And the upper extrusion roller and the lower extrusion roller which synchronously and reversely move are arranged at the upper position and the lower position of the movable seat, so that the upper extrusion roller can be subjected to profiling correction treatment according to the radian size of the inner wall cambered surface supporting plate, and reinforcing ribs outside the cover plate are prevented from being damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of cover plate correction, and in particular to a cover plate correction device for an aluminum electrolytic cell and a use method thereof. Background Art

[0002] The electrochemical reaction inside the aluminum electrolysis cell will produce harmful gases, which will leak into the air from the gap between the aluminum electrolysis cell cover and the aluminum electrolysis cell body. The main reason for the leakage is the poor sealing effect of the aluminum electrolysis cell cover. Therefore, after the aluminum electrolysis cell has been working for a period of time, the aluminum electrolysis cell cover needs to be corrected to ensure the sealing effect.

[0003] The aluminum electrolytic cell cover is a curved structure with a certain curvature, and in order to reduce weight, reinforcing ribs are welded on the outside of the thinner plate. The ordinary correction device consists of only two rotating pressure rollers, which will cause damage to the external reinforcing ribs during correction and uneven force will affect the correction effect, so it needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to provide an aluminum electrolysis cell cover correction device and a method of using the same, so as to solve the problems existing in the above-mentioned prior art, complete the correction of the aluminum electrolysis cell cover, and reduce the extrusion damage to its external reinforcement ribs caused by the correction.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a device for correcting an aluminum electrolytic cell cover, comprising a frame, an inner wall arc support plate, an outer wall arc support plate, a moving assembly and an ejection assembly; the length direction of the frame is a first direction, the width direction of the frame is a second direction, and the height direction of the frame is a third direction; in the third direction, the inner wall arc support plate is fixedly arranged at the inner lower end of the frame; the inner wall arc support plate has an inner wall arc guide surface; in the third direction, the outer wall arc support plate is arranged at the inner upper end of the frame, and the outer wall arc support plate has an outer wall arc fitting surface; the inner wall arc guide surface is opposite to the concave surface of the outer wall arc fitting surface, the concave curvature of the outer wall arc fitting surface is the same as the outer wall curvature of the aluminum electrolytic cell cover to be corrected, and the concave curvature of the inner wall arc guide surface is the same as the inner wall curvature of the aluminum electrolytic cell cover to be corrected; the moving assembly comprises a moving seat and a transverse driving assembly; in the third direction, the moving seat is located at the inner wall arc The guide surface is between the guide surface and the arc-shaped fitting surface of the outer wall; the transverse driving assembly is used to drive the movable seat to move along the first direction; the ejection assembly includes an upper extrusion roller, a lower extrusion roller and an ejection driving assembly; in the third direction, the upper extrusion roller is located above the movable seat, and the lower extrusion roller is located below the movable seat; the ejection driving assembly is arranged on the movable seat, and the ejection driving assembly has an upper telescopic end and a lower telescopic end that are telescopic along the third direction, and the upper telescopic end and the lower telescopic end can be synchronously telescopic in the third direction; the upper extrusion roller is rotatably connected to the upper telescopic end, and the lower extrusion roller is rotatably connected to the lower telescopic end; in the second direction, end limit slots are respectively arranged on both sides of the frame, and the two ends of the aluminum electrolysis cell cover to be corrected are respectively clamped in the corresponding end limit slots; when the upper extrusion roller is fitted on the inner wall surface of the aluminum electrolysis cell cover to be corrected, the lower extrusion roller and the inner wall arc-shaped guide surface maintain the same position fit.

[0007] Preferably, a lifting mechanism is provided on the frame, and the outer wall arc surface support plate is fixedly arranged at a lifting end of the lifting mechanism, and the lifting end of the lifting mechanism can drive the outer wall arc surface support plate to lift and lower along the third direction.

[0008] Preferably, the ejection drive assembly includes a first mounting frame, a second mounting frame and two linkage assemblies; in the third direction, the first mounting frame is located above the movable seat, and the second mounting frame is located below the movable seat; the upper extrusion roller is rotatably connected to the first mounting frame, and the lower extrusion roller is rotatably connected to the second mounting frame; the linkage assembly includes a telescopic device, a slider and at least one group of connecting rod assemblies; the connecting rod assembly includes a first connecting rod and a second connecting rod; the slider is slidably arranged on the movable seat along the second direction, the telescopic device is fixedly arranged on the movable seat, and the telescopic end of the telescopic device is fixedly connected to the slider; the upper end of the first connecting rod is rotatably connected to the first mounting frame, and the lower end of the first connecting rod is rotatably connected to the slider; the upper end of the second connecting rod is rotatably connected to the slider, and the lower end of the second connecting rod is rotatably connected to the second mounting frame.

[0009] Preferably, the linkage assembly includes two groups of connecting rod assemblies; extension shafts are fixedly arranged on both symmetrical sides of the slider, wherein the lower end of the first connecting rod and the upper end of the second connecting rod of one group of the connecting rod assemblies are rotatably connected to one of the extension shafts, and the lower end of the first connecting rod and the upper end of the second connecting rod of the other group of the connecting rod assemblies are rotatably connected to the other extension shaft.

[0010] Preferably, the opening of the end limit slot has a guiding slope.

[0011] Preferably, the transverse driving assembly includes a transverse screw rod, a driving motor and two guide rods; in the first direction, side plates are fixedly arranged on the frames located on both sides of the moving seat; both ends of the transverse screw rod are rotatably connected with the corresponding side plates respectively; the driving motor is fixedly arranged on a side of one of the side plates away from the moving seat, and the end of the transverse screw rod close to the driving motor extends out of the corresponding side plate, the output end of the driving motor can be transmission-connected with the corresponding end of the transverse screw rod, and the output end of the driving motor can drive the transverse screw rod to rotate around a first axis, and the first axis is parallel to the first direction; the two guide rods are arranged parallel to the transverse screw rod, and the two ends of the guide rod are fixedly connected with the corresponding side plates respectively; a threaded hole and two guide holes are provided on the moving seat, the transverse screw rod is threadedly connected in the threaded hole, and each of the guide holes is respectively penetrated with one of the guide rods.

[0012] Preferably, the frame includes a supporting bottom frame, a top plate and a plurality of columns; in the third direction, the top plate is located above the supporting bottom frame, and the top plate is fixedly connected to the supporting bottom frame through the columns; the inner wall arc support plate is fixedly provided on the supporting bottom frame; the lifting mechanism is provided on the top plate, the outer wall arc support plate is located below the top plate, and the outer wall arc support plate is fixedly connected to the lifting end of the lifting mechanism.

[0013] Preferably, the lifting mechanism includes a lifting cylinder, a suspension plate and at least one guide slide rod; the lifting end of the lifting cylinder is fixedly connected to the suspension plate, the frame has at least one guide slide hole, and each guide slide hole is respectively penetrated by a guide slide rod for sliding along the third direction; the suspension plate is located above the outer wall arc support plate, and the suspension plate is fixedly connected to the upper end of the outer wall arc support plate through a plurality of connecting rods.

[0014] Preferably, one end of the transverse screw rod extending out of the side plate is fixedly provided with a first conical tooth, and the output end of the drive motor is fixedly provided with a second conical tooth, and the first conical tooth and the second conical tooth are meshed for transmission.

[0015] The present invention also provides a method for using the aluminum electrolysis cell cover plate correction device based on any one of the above items, comprising the following steps:

[0016] S1, clamping the two ends of the aluminum electrolysis cell cover plate to be corrected in the corresponding end limit clamping grooves respectively, and making the outer wall of the aluminum electrolysis cell cover plate to be corrected contact with the arc-shaped fitting surface of the outer wall;

[0017] S2, adjusting the movable seat to different positions of the inner wall of the aluminum electrolytic cell cover to be corrected by the transverse driving assembly, cooperating with the ejection driving assembly to extrude and fit the upper extrusion roller to the corresponding position of the aluminum electrolytic cell cover to be corrected, so as to complete the preliminary correction of the local position of the aluminum electrolytic cell cover to be corrected in the order of the middle and then the two sides of the inner wall of the aluminum electrolytic cell cover to be corrected;

[0018] S3, then keep the upper extrusion roller in contact with the inner wall of the aluminum electrolysis cell cover to be corrected, and keep the lower extrusion roller in contact with the arc-shaped guide surface of the inner wall, and drive the movable seat to continuously reciprocate in the second direction through the transverse driving assembly to complete the final correction of the aluminum electrolysis cell cover to be corrected.

[0019] Compared with the prior art, the present invention has achieved the following technical effects:

[0020] The aluminum electrolytic cell cover correction device provided by the present invention respectively arranges corresponding upper extrusion rollers and lower extrusion rollers at the upper and lower ends of a movable seat, and the upper extrusion rollers and the lower extrusion rollers are in a synchronous and reverse moving mode. The extrusion cooperation between the lower extrusion roller and the inner wall arc guide surface enables the upper extrusion roller to synchronously perform correction processing according to the curvature size of the inner wall arc guide surface consistent with the curvature of the inner wall of the aluminum electrolytic cell cover to be corrected, thereby avoiding excessive extrusion of the inner wall of the aluminum electrolytic cell cover by the upper extrusion roller, which leads to damage of the reinforcing ribs on the outer wall of the aluminum electrolytic cell cover caused by corresponding excessive extrusion between the outer wall of the aluminum electrolytic cell cover and the outer wall arc fitting surface of the outer wall arc support plate; the end limit slot is used to limit the position of the two ends of the aluminum electrolytic cell cover, the outer wall arc support plate is used to limit the position of the outer wall of the aluminum electrolytic cell cover, and the upper extrusion roller is used for corrective extrusion of the inner wall surface of the aluminum electrolytic cell cover. The structure of the whole device is simple, and the correction is stable and reliable.

[0021] Furthermore, the lifting mechanism can drive the outer wall arc surface support plate to approach the outer wall of the aluminum electrolysis cell cover to be corrected in the third direction, thereby pushing the end of the aluminum electrolysis cell cover to be more accurately located in the end limit slot, completing the correction of the end of the aluminum electrolysis cell cover and a more stable and reliable clamping effect of the end, so that the distortion of the end can be corrected; and the lifting mechanism can drive the outer wall arc surface support plate to more accurately limit the outer wall position of the aluminum electrolysis cell cover, so as to cooperate with the upper extrusion roller to achieve more accurate correction; the outer wall arc surface support plate is driven to rise and fall by the lifting mechanism to expand the space between the outer wall arc surface support plate and the upper extrusion roller, so as to facilitate the taking and placing of the aluminum electrolysis cell cover.

[0022] Furthermore, the sliding block is driven to slide on the movable seat by the telescopic device, and cooperates with the first connecting rod and the second connecting rod to realize the synchronous reverse telescopic action of the upper extrusion roller and the lower extrusion roller, and its structure is simple and convenient; by adopting two linkage components, the telescopic action of the upper extrusion roller and the lower extrusion roller can be more stable and reliable.

[0023] Furthermore, each linkage assembly adopts two sets of connecting rod assemblies, which can enhance the connection firmness and the stability of movement.

[0024] Furthermore, the guiding bevel provided at the opening of the end limit slot enables the end of the aluminum electrolytic cell cover plate to enter through the guiding bevel even if it is crooked, thereby ensuring the correction effect on the end.

[0025] Furthermore, the two guide rods can ensure the stable movement of the transverse screw rod, and the guide rods can provide support force in the gravity direction of the moving seat, making the movement of the moving seat more stable and reliable, and reducing the problem of jamming between the moving seat and the transverse screw rod.

[0026] Furthermore, the frame is composed of a supporting bottom frame, a top plate and a plurality of columns, and has a simple structure, is stable and reliable, and is easy to process and manufacture.

[0027] Furthermore, the lifting mechanism adopts a lifting cylinder in conjunction with a guide slide rod, which assists in the stability of the lifting direction. The outer wall arc support plate and the suspension plate are composed of multiple connecting rods, and the structure is lighter, reducing its weight.

[0028] Furthermore, the first conical teeth and the second conical teeth are used for transmission engagement between the transverse screw and the drive motor. The structure is simple and can reduce the space occupied by the drive motor in the axial direction of the transverse screw. By matching the first conical teeth and the second conical teeth of different sizes, the transverse screw can achieve rotation effects of different speeds.

[0029] The present invention also provides a method for using the aluminum electrolytic cell cover correction device based on the above, which first performs preliminary correction on different points of the aluminum electrolytic cell cover, and in the order of first the middle and then the two sides, so that the aluminum electrolytic cell cover that has been initially corrected can better reduce the correction difficulty for subsequent continuous correction, cooperate with the subsequent continuous correction process, and finally achieve stable and accurate correction of the aluminum electrolytic cell cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of the overall structure of the aluminum electrolytic cell cover plate correction device provided by the present invention;

[0032] Figure 2 A front view of the aluminum electrolytic cell cover plate correction device provided by the present invention;

[0033] Figure 3 A schematic diagram of the connection structure between the lifting mechanism and the outer wall arc surface support plate in the aluminum electrolytic cell cover plate correction device provided by the present invention;

[0034] Figure 4 A schematic diagram of the structure in which the moving assembly and the ejecting assembly in the aluminum electrolytic cell cover plate correction device provided by the present invention are installed on the supporting bottom frame;

[0035] Figure 5 for Figure 4 A front view of

[0036] Figure 6 A schematic diagram of the structure in which the ejector assembly in the aluminum electrolytic cell cover plate correction device provided by the present invention is installed on a movable seat;

[0037] Figure 7 for Figure 6 A front view of

[0038] Figure 8 A schematic diagram of the structure of a clamp in the aluminum electrolytic cell cover plate correction device provided by the present invention;

[0039] Fig. 9 for Figure 4 Schematic diagram of the bottom structure.

[0040] In the figure:

[0041] 100-Aluminum electrolytic cell cover correction device;

[0042] 10-frame; 11-supporting bottom frame; 12-column; 13-top plate; 14-side plate; 15-lifting mechanism; 151-lifting cylinder; 152-suspension plate; 153-guide slide rod; 154-connecting rod; 16-clip; 161-end limit slot; 162-guide slope;

[0043] 20- inner wall arc surface support plate;

[0044] 30-moving assembly; 31-moving seat; 32-transverse screw rod; 33-driving motor; 34-guide rod; 35-first conical tooth; 36-second conical tooth;

[0045] 40- ejector assembly; 41- upper squeezing roller; 42- first mounting frame; 43- linkage assembly; 431- telescopic device; 432- slider; 433- first connecting rod; 434- second connecting rod; 435- extension shaft; 44- second mounting frame; 45- lower squeezing roller; 46- support plate;

[0046] 50- Outer wall curved support plate. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] The purpose of the present invention is to provide an aluminum electrolysis cell cover correction device and a method of using the same, so as to solve the problems existing in the prior art, complete the correction of the aluminum electrolysis cell cover, and reduce the extrusion damage to its external reinforcement ribs caused by the correction.

[0049] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0050] Embodiment 1

[0051] This embodiment provides an aluminum electrolytic cell cover plate correction device 100, such as Figures 1 to 9 As shown, it includes a frame 10, an inner wall arc support plate 20, an outer wall arc support plate 50, a moving assembly 30 and an ejection assembly 40; the length direction of the frame 10 is the first direction, the width direction of the frame 10 is the second direction, and the height direction of the frame 10 is the third direction; in the third direction, the inner wall arc support plate 20 is fixedly arranged at the inner lower end of the frame 10; the inner wall arc support plate 20 has an inner wall arc guide surface; in the third direction, the outer wall arc support plate 50 is arranged at the inner upper end of the frame 10, and the outer wall arc surface support plate 50 has an outer wall arc-shaped fitting surface; the inner wall arc-shaped guide surface is opposite to the concave surface of the outer wall arc-shaped fitting surface, and the concave curvature of the outer wall arc-shaped fitting surface is the same as the outer wall curvature of the aluminum electrolytic cell cover to be corrected, and the concave curvature of the inner wall arc-shaped guide surface is the same as the inner wall curvature of the aluminum electrolytic cell cover to be corrected; the moving assembly 30 includes a moving seat 31 and a transverse driving assembly; in the third direction, the moving seat 31 is located at the inner wall arc-shaped guide surface. The guide surface and the arc-shaped fitting surface of the outer wall; the lateral driving assembly is used to drive the movable seat 31 to move along the first direction; the ejection assembly 40 includes an upper squeezing roller 41, a lower squeezing roller 45 and an ejection driving assembly; in the third direction, the upper squeezing roller 41 is located above the movable seat 31, and the lower squeezing roller 45 is located below the movable seat 31; the ejection driving assembly is arranged on the movable seat 31, and the ejection driving assembly has an upper telescopic end and a lower telescopic end that can be telescoped along the third direction, and the upper telescopic end and the lower telescopic end can be synchronously telescoped in the third direction in the opposite directions; the upper squeezing roller 41 is rotatably connected to the upper telescopic end, and the lower squeezing roller 45 is rotatably connected to the lower telescopic end; in the second direction, end limit card grooves 161 are respectively arranged on both sides of the frame 10, and the two ends of the aluminum electrolytic cell cover to be corrected are respectively clamped in the corresponding end limit card grooves 161; when the upper squeezing roller 41 is fitted on the inner wall surface of the aluminum electrolytic cell cover to be corrected, the lower squeezing roller 45 and the inner wall arc-shaped guide surface maintain the same position fit.

[0052] By respectively arranging corresponding upper extrusion rollers 41 and lower extrusion rollers 45 at the upper and lower ends of the movable seat 31, and the upper extrusion rollers 41 and the lower extrusion rollers 45 are in a synchronous reverse moving mode, the extrusion cooperation between the lower extrusion roller 45 and the inner wall arc guide surface enables the upper extrusion roller 41 to synchronously perform correction processing according to the curvature size of the inner wall arc guide surface consistent with the curvature of the inner wall of the aluminum electrolytic cell cover to be corrected, so as to avoid excessive extrusion of the inner wall of the aluminum electrolytic cell cover by the upper extrusion roller 41, which leads to damage of the reinforcing ribs on the outer wall of the aluminum electrolytic cell cover caused by the corresponding excessive extrusion between the outer wall of the aluminum electrolytic cell cover and the outer wall arc fitting surface of the outer wall arc support plate 50; the end limit slot 161 is used to limit the position of the two ends of the aluminum electrolytic cell cover, the outer wall arc support plate 50 is used to limit the position of the outer wall of the aluminum electrolytic cell cover, and the upper extrusion roller 41 is used for corrective extrusion of the inner wall surface of the aluminum electrolytic cell cover, the structure of the whole device is simple, and the correction is stable and reliable.

[0053] Among them, the structure of the frame 10 is described as follows:

[0054] Among the optional solutions of this embodiment, it is more preferred that Figure 1 to Figure 4 As shown, the frame 10 includes a supporting bottom frame 11, a top plate 13 and a plurality of columns 12; in the third direction, the top plate 13 is located above the supporting bottom frame 11, and the top plate 13 is fixedly connected to the supporting bottom frame 11 through the columns 12; the inner wall arc surface support plate 20 is fixedly arranged on the supporting bottom frame 11; the lifting mechanism 15 is arranged on the top plate 13, the outer wall arc surface support plate 50 is located below the top plate 13, and the outer wall arc surface support plate 50 is fixedly connected to the lifting end of the lifting mechanism 15. The frame 10 is composed of the supporting bottom frame 11, the top plate 13 and a plurality of columns 12, and its structure is simple, stable and reliable, and convenient for processing and manufacturing.

[0055] Specifically, regarding the structure of the support bottom frame 11: the support bottom frame 11 can be processed by square tube welding, which can reduce the overall quality and processing difficulty while ensuring the structural strength. In this embodiment, three horizontal square tubes and two longitudinal square tubes can be arranged and welded with each other. Side panels 14 are provided at both ends of the support bottom frame 11. The side panels 14 are vertically arranged on the left and right sides of the upper surface of the support bottom frame 11, and in order to ensure that the side panels 14 and the support bottom frame 11 can be stably connected, such as Figure 1 As shown, a front-to-back facing bottom plate is provided at the lower part of the side plate 14, the bottom plate is welded to the square tube supporting the bottom frame 11, and the side plate 14 is welded to the bottom plate, and at the same time, several reinforcing ribs are welded between the outer side wall of the side plate 14 and the supporting bottom frame 11, so that the side plate 14 has sufficient rigidity and stability.

[0056] Specifically, Figure 1 As shown, columns 12 are provided at both ends of the supporting bottom frame 11 .

[0057] Among the optional solutions of this embodiment, it is more preferred that Figure 1 to Figure 3 As shown, a lifting mechanism 15 is provided on the frame 10 (specifically, on the top plate 13), and the outer wall arc surface support plate 50 is fixedly arranged at the lifting end of the lifting mechanism 15, and the lifting end of the lifting mechanism 15 can drive the outer wall arc surface support plate 50 to lift and lower along the third direction. The lifting mechanism 15 can drive the outer wall arc surface support plate 50 to approach the outer wall of the aluminum electrolytic cell cover plate to be corrected in the third direction, thereby pushing the end of the aluminum electrolytic cell cover plate to be more accurately located in the end limit clamping groove 161, completing the correction of the end of the aluminum electrolytic cell cover plate and the more stable and reliable clamping effect of its end, so that the distortion of its end can be corrected; and the lifting mechanism 15 can drive the outer wall arc surface support plate 50 to more accurately limit the outer wall position of the aluminum electrolytic cell cover plate, so as to cooperate with the upper extrusion roller 41 to achieve more accurate correction; the outer wall arc surface support plate 50 is driven to lift and lower by the lifting mechanism 15, so as to expand the space between the outer wall arc surface support plate 50 and the upper extrusion roller 41, so as to facilitate the taking and placing of the aluminum electrolytic cell cover plate.

[0058] Among the optional solutions of this embodiment, it is more preferred that Figure 1 and Figure 3 As shown, the lifting mechanism 15 includes a lifting cylinder 151, a suspension plate 152 and at least one guide slide bar 153; the lifting end of the lifting cylinder 151 is fixedly connected to the suspension plate 152, and the frame 10 has at least one guide slide hole, and each guide slide hole is respectively penetrated with a guide slide bar 153 that slides along the third direction; the suspension plate 152 is located above the outer wall arc surface support plate 50, and the suspension plate 152 is fixedly connected to the upper end of the outer wall arc surface support plate 50 through a plurality of connecting rods 154. The lifting mechanism 15 uses a lifting cylinder 151 in conjunction with a guide slide bar 153, and the guide slide bar 153 assists in the stability of the lifting direction. The outer wall arc surface support plate 50 and the suspension plate 152 are composed of a plurality of connecting rods 154, and its structure is more lightweight, reducing its weight.

[0059] Specifically, the up and down movement of the outer wall arc support plate 50 is controlled by the lifting cylinder 151, and the downward force is provided by the lifting cylinder 151. In order to prevent the outer wall arc support plate 50 from being subjected to lateral force and causing the piston rod of the lifting cylinder 151 to be damaged, a guide slide bar 153 is arranged around the suspension plate 152. Through the limiting effect of the guide slide bar 153, the suspension plate 152 can move up and down stably.

[0060] The structure of the mobile component 30 is described as follows:

[0061] Among the optional solutions of this embodiment, it is more preferred that Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the transverse driving assembly includes a transverse screw rod 32, a driving motor 33 and two guide rods 34; in the first direction, side plates 14 are fixedly arranged on the frames 10 on both sides of the moving seat 31; the two ends of the transverse screw rod 32 are rotatably connected with the corresponding side plates 14 respectively; the driving motor 33 is fixedly arranged on the side of one of the side plates 14 away from the moving seat 31, and the end of the transverse screw rod 32 close to the driving motor 33 extends out of the corresponding side plate 14, and the output end of the driving motor 33 can be transmission-connected with the corresponding end of the transverse screw rod 32, and the output end of the driving motor 33 can drive the transverse screw rod 32 to rotate around a first axis, and the first axis is parallel to the first direction; the two guide rods 34 are arranged in parallel with the transverse screw rod 32, and the two ends of the guide rod 34 are fixedly connected with the corresponding side plates 14 respectively; a threaded hole and two guide holes are provided on the moving seat 31, and the transverse screw rod 32 is threadedly connected in the threaded hole, and a guide rod 34 is respectively passed through each guide hole. The two guide rods 34 can ensure the stable movement of the transverse screw rod 32, and the guide rods 34 can provide support force in the gravity direction of the moving seat 31, making the movement of the moving seat 31 more stable and reliable, and also reducing the problem of jamming between the moving seat 31 and the transverse screw rod 32.

[0062] Among the optional solutions of this embodiment, it is more preferred that Figure 1 and Figure 4 As shown, the end of the traverse screw rod 32 extending out of the side plate 14 is fixedly provided with a first conical tooth 35, and the output end of the drive motor 33 is fixedly provided with a second conical tooth 36, and the first conical tooth 35 and the second conical tooth 36 are meshed for transmission. The traverse screw rod 32 and the drive motor 33 adopt the transmission meshing of the first conical tooth 35 and the second conical tooth 36, which has a simple structure and can reduce the space occupied by the drive motor 33 in the axial direction of the traverse screw rod 32, and the first conical tooth 35 and the second conical tooth 36 of different sizes are matched to achieve the rotation effect of the traverse screw rod 32 at different speeds.

[0063] Specifically, by cooperating with the first conical teeth 35 and the second conical teeth 36 of different sizes, the effect of a speed reducer can be achieved.

[0064] Among them, the relevant structural description of the ejection assembly 40 is as follows:

[0065] Among the optional solutions of this embodiment, it is more preferred that Figure 1-2 and Figure 4 to Figure 7 and Fig. 9As shown, the ejection drive assembly includes a first mounting frame 42, a second mounting frame 44 and two linkage assemblies 43; in the third direction, the first mounting frame 42 is located above the moving seat 31, and the second mounting frame 44 is located below the moving seat 31; the upper squeezing roller 41 is rotatably connected to the first mounting frame 42, and the lower squeezing roller 45 is rotatably connected to the second mounting frame 44; the linkage assembly 43 includes a telescopic device 431, a slider 432 and at least one group of connecting rod assemblies; the connecting rod assembly includes a first connecting rod 433 and a second connecting rod 434; the slider 432 moves along the second The first connecting rod 433 is rotatably connected to the first mounting frame 42, and the lower end of the first connecting rod 433 is rotatably connected to the slider 432; the upper end of the second connecting rod 434 is rotatably connected to the slider 432, and the lower end of the second connecting rod 434 is rotatably connected to the second mounting frame 44. The sliding movement of the slider 432 on the moving seat 31 is driven by the telescopic device 431, and the first connecting rod 433 and the second connecting rod 434 are coordinated to realize the synchronous reverse telescopic movement of the upper squeezing roller 41 and the lower squeezing roller 45, and the structure is simple and convenient; two linkage components 43 are adopted, which can make the telescopic movement of the upper squeezing roller 41 and the lower squeezing roller 45 more stable and reliable.

[0066] Specifically, the upper end of the first connecting rod 433 is rotatably connected to the support plate 46, and the support plate 46 is fixedly connected to the first mounting frame 42; similarly, the lower end of the second connecting rod 434 is rotatably connected to the support plate 46, and the support plate 46 is fixedly connected to the second mounting frame 44.

[0067] Specifically, the two sliders 432 move synchronously in opposite directions.

[0068] Specifically, the telescopic device 431 is an ejection cylinder, and the air sources of the two ejection cylinders are connected to the same air source, so the piston rods of the two ejection cylinders can be extended or retracted at the same time, so that the front and rear sliders 432 can be synchronously approached or synchronously moved away from each other.

[0069] Among the optional solutions of this embodiment, it is more preferred that Figure 6 As shown, the linkage assembly 43 includes two groups of link assemblies; extension shafts 435 are fixedly arranged on both symmetrical sides of the slider 432, wherein the lower end of the first link 433 and the upper end of the second link 434 of one group of link assemblies are rotatably connected to one of the extension shafts 435, and the lower end of the first link 433 and the upper end of the second link 434 of the other group of link assemblies are rotatably connected to the other extension shaft 435. Each linkage assembly 43 uses two groups of link assemblies, which can enhance the connection firmness and the stability of movement.

[0070] Specifically, the upper extrusion roller 41 and the lower extrusion roller 45 can move synchronously, in opposite directions and at equal distances, that is, the upper extrusion roller 41 and the lower extrusion roller 45 move away from or approach each other at the same time relative to the moving seat 31, and the moving distances are the same. Therefore, when the lower extrusion roller 45 falls on the upper concave surface of the inner wall arc support plate 20, the upper upper extrusion roller 41 will also move to the corresponding concave surface position of the aluminum electrolytic cell cover. Therefore, the arc surface formed by the maximum height of the upper extrusion roller 41 is symmetrical with the upper concave surface of the inner wall arc support plate 20, so that the inner wall of the aluminum electrolytic cell cover can be squeezed by the upper upper extrusion roller 41, so that the inner wall of the aluminum electrolytic cell cover can be corrected.

[0071] Among them, regarding other related instructions:

[0072] Among the optional solutions of this embodiment, it is more preferred that Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 8 As shown, the opening of the end limit slot 161 has a guide slope 162. The guide slope 162 provided at the opening of the end limit slot 161 enables the end of the aluminum electrolytic cell cover plate to enter through the guide slope 162 even if it is skewed, thereby ensuring the correction effect on the end.

[0073] Specifically, a corresponding clamping head 16 is disposed on the inner side of the upper end of the side plate 14 , and an end limit clamping groove 161 is disposed on the clamping head 16 .

[0074] Specifically, a clamp 16 is provided on one side of the top of the side plate 14 near the center of the supporting bottom frame 11, and the internal cross-section of the end limit slot 161 is a rectangle, and the cross-section of the rectangle is the same as the thickness of the end of the aluminum electrolytic cell cover plate, so even if the aluminum electrolytic cell cover plate is crooked, it can still enter its interior through the guide slope 162 of the end limit slot 161. With the extrusion from top to bottom, the end of the aluminum electrolytic cell cover plate will be inserted into the rectangular position inside the end limit slot 161, so that the crooked state of the aluminum electrolytic cell cover plate itself is corrected, which is more accurate than ordinary correction equipment that can only change the curvature of the middle part of the aluminum electrolytic cell cover plate. In addition, the rotating seat connected to the clamp 16 and the side plate 14 is set with a certain angle limit, so that the clamp 16 can only rotate downward at a maximum of a certain angle, which is the angle after the aluminum electrolytic cell cover plate of normal size contacts the clamp 16, to prevent the clamp 16 from rotating freely, resulting in the position where the clamp 16 contacts the cover plate being folded upward, affecting the final correction effect.

[0075] Specifically, in order to reduce the weight of the entire device, the inner wall arc support plate 20 and the outer wall arc support plate 50 are both set to an arc structure. In the early stage, casting and milling machine processing are used to complete the processing of the machined surface. This results in the inner wall arc support plate 20 and the outer wall arc support plate 50. The surface that can be fixed is also an arc surface, and it cannot be fixed by simple welding. Therefore, a connecting rod 154 is welded between the inner wall arc support plate 20 and the supporting bottom frame 11 and between the outer wall arc support plate 50 and the suspension plate 152. The inner wall arc support plate 20 and the supporting bottom frame 11 are connected by connecting rods 154, and the outer wall arc support plate 50 and the hanging plate 152 are connected by connecting rods 154. The two ends of the connecting rods 154 are fixed by welding, so that the forces of the inner wall arc support plate 20 and the outer wall arc support plate 50 can be transmitted to the supporting bottom frame 11 and the hanging plate 152 more stably through multiple connecting rods 154. In addition, since the supporting bottom frame 11 is welded with square tubes, its contact area is smaller than the base of the conventional entire flat plate. At this time, the connecting rods 154 can be divided into three rows to fix the inner wall arc support plate 20 and the supporting bottom frame 11, so that the stability of the inner wall arc support plate 20 is guaranteed under the premise of a smaller contact area.

[0076] Embodiment 2

[0077] This embodiment provides a method for using the aluminum electrolysis cell cover plate correction device 100 based on the first embodiment, comprising the following steps:

[0078] S1, clamping the two ends of the aluminum electrolysis cell cover plate to be corrected into the corresponding end limit clamping grooves 161 respectively, and making the outer wall of the aluminum electrolysis cell cover plate to be corrected contact with the arc-shaped fitting surface of the outer wall;

[0079] S2, the movable seat 31 is adjusted to different positions of the inner wall of the aluminum electrolytic cell cover to be corrected by the lateral driving assembly, and the upper extrusion roller 41 is pressed and fitted to the corresponding position of the aluminum electrolytic cell cover to be corrected by the ejection driving assembly, so as to complete the preliminary correction of the local position of the aluminum electrolytic cell cover to be corrected in the order of the middle part and then the two sides of the inner wall of the aluminum electrolytic cell cover to be corrected;

[0080] S3, then keep the upper extrusion roller 41 in contact with the inner wall of the aluminum electrolytic cell cover to be corrected, and keep the lower extrusion roller 45 in contact with the arc-shaped guide surface of the inner wall, and drive the movable seat 31 to continuously reciprocate in the second direction through the transverse driving assembly to complete the final correction of the aluminum electrolytic cell cover to be corrected.

[0081] First, preliminary correction is carried out on different points of the aluminum electrolytic cell cover, in the order of the middle and then the two sides, so that the aluminum electrolytic cell cover that has been initially corrected can better reduce the difficulty of correction for subsequent continuous correction, and cooperate with the subsequent continuous correction process to finally achieve stable and accurate correction of the aluminum electrolytic cell cover.

[0082] Specific process description:

[0083] First, dismantle the covers on both sides of the aluminum electrolytic cell, remove some seals and connectors covering them, and move the covers to the front of the device by a crane or a crane to prepare for correction.

[0084] Cover plate clamping: Use a crane to move the cover plate to the front side of the clamp 16 with the inner wall kept downward, and move the cover plate left and right so that the left and right ends of the cover plate are aligned with the end limit slots 161 of the clamp 16 on the left and right sides. At this time, since the end limit slots 161 have guide slopes 162, even if the end of the cover plate is twisted to a certain extent, the end of the cover plate can still be inserted into the end limit slot 161 of the clamp 16. Insert the end of the cover plate into the end limit slot 161 of the clamp 16 from front to back, then detach the lifting rope from the cover plate, and complete the clamping of the cover plate.

[0085] Straightening the cover plate end: Start the lifting cylinder 151, which drives the suspension plate 152 to move downward, and the outer wall arc support plate 50 moves downward to support the upper surface of the cover plate. At this time, the outer wall arc support plate 50 will push the cover plate downward, and the two ends of the cover plate move outward and insert into the end limit slot 161 of the clamp 16. At this time, the end of the cover plate will slide inward along the guide slope 162 of the end limit slot 161. When the end of the cover plate is completely inserted into the rectangular part of the end limit slot 161, the distortion of the cover plate end has been corrected.

[0086] Correction of the inner wall of the cover: Start the drive motor 33, adjust the movable seat 31 to move to the center position of the device, and then start the telescopic device 431. At this time, the upper extrusion roller 41 extends out, and the upper extrusion roller 41 pushes the middle part of the cover to move upward, thereby realizing the initial extrusion of the middle part. After the extrusion is completed, the movable seat 31 can be adjusted left and right several times so that the left and right different positions of the inner wall of the cover are initially extruded. At this time, the inner wall size of the cover is roughly corrected, and then the drive motor 33 is started continuously. The drive motor 33 moves the movable seat 31 left and right, and maintains the continuous pressure of the telescopic device 431, so that the lower extrusion roller 45 below rolls left and right along the lower inner wall arc support plate 20, so that the upper extrusion roller 41 above simulates the arc angle of the lower inner wall arc support plate 20 to move left and right, so that the upper extrusion roller 41 moving left and right continuously corrects the inner wall of the cover, thereby completing the correction of the entire cover.

[0087] After the correction process is completed, stop the driving motor 33, start the telescopic device 431 in reverse, so that the upper extrusion roller 41 is disengaged from the inner wall of the cover plate, and start the lifting cylinder 151 in reverse to disengage the outer wall arc support plate 50 from the outside of the cover plate, connect the lifting rope of the crane to the top of the cover plate, keep the lifting rope tight, slide the cover plate to the front side, so that the cover plate is disengaged from the clamping head 16, and the cover plate can be transferred away by the crane.

[0088] Specifically, in this embodiment, for the convenience of force addition, a pneumatic cylinder can be used as a power unit. When the air source in some workshops is not stable enough, or the output force of the pneumatic cylinder itself cannot meet the correction requirements, a hydraulic cylinder can be used as a lifting cylinder 151 and a telescopic device 431 to increase the output force. Only an additional hydraulic station is required to work.

[0089] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A device for correcting the cover plate of an aluminum electrolytic cell, characterized in that: It includes a frame, an inner wall arc surface support plate, an outer wall arc surface support plate, a moving component and an ejection component; The length direction of the frame is taken as the first direction, the width direction of the frame is taken as the second direction, and the height direction of the frame is taken as the third direction; In the third direction, the inner wall arc surface support plate is fixedly arranged at the inner lower end of the frame; the inner wall arc surface support plate has an inner wall arc-shaped guide surface; in the third direction, the outer wall arc surface support plate is arranged at the inner upper end of the frame, and the outer wall arc surface support plate has an outer wall arc-shaped fitting surface; the inner wall arc-shaped guide surface and the concave surface of the outer wall arc-shaped fitting surface are opposite, the concave curvature of the outer wall arc-shaped fitting surface is the same as the outer wall curvature of the aluminum electrolytic cell cover to be corrected, and the concave curvature of the inner wall arc-shaped guide surface is the same as the inner wall curvature of the aluminum electrolytic cell cover to be corrected; The moving assembly comprises a moving seat and a transverse driving assembly; in the third direction, the moving seat is located between the inner wall arc-shaped guide surface and the outer wall arc-shaped fitting surface; the transverse driving assembly is used to drive the moving seat to move along the first direction; The ejection assembly comprises an upper squeezing roller, a lower squeezing roller and an ejection drive assembly; In the third direction, the upper squeezing roller is located above the moving seat, and the lower squeezing roller is located below the moving seat; the ejection drive assembly is arranged on the moving seat, and the ejection drive assembly has an upper telescopic end and a lower telescopic end that are telescopic along the third direction, and the upper telescopic end and the lower telescopic end can be synchronously telescopic in the third direction; the upper squeezing roller is rotatably connected to the upper telescopic end, and the lower squeezing roller is rotatably connected to the lower telescopic end; In the second direction, end limit slots are respectively provided on both sides of the frame, and the two ends of the aluminum electrolytic cell cover plate to be corrected are respectively clamped in the corresponding end limit slots; When the upper extrusion roller is in contact with the inner wall surface of the aluminum electrolysis cell cover plate to be corrected, the lower extrusion roller and the arc-shaped guide surface of the inner wall are kept in contact with each other at the same position.

2. The aluminum electrolytic cell cover plate correction device according to claim 1 is characterized in that: The frame is provided with a lifting mechanism, the outer wall arc surface support plate is fixedly arranged at the lifting end of the lifting mechanism, and the lifting end of the lifting mechanism can drive the outer wall arc surface support plate to lift and lower along the third direction.

3. The aluminum electrolytic cell cover plate correction device according to claim 1 is characterized in that: The ejection drive assembly includes a first mounting frame, a second mounting frame and two linkage assemblies; In the third direction, the first mounting frame is located above the moving seat, and the second mounting frame is located below the moving seat; the upper squeezing roller is rotatably connected to the first mounting frame, and the lower squeezing roller is rotatably connected to the second mounting frame; The linkage assembly includes a telescopic device, a slider and at least one group of connecting rod assemblies; the connecting rod assembly includes a first connecting rod and a second connecting rod; the slider is slidably arranged on the moving seat along the second direction, the telescopic device is fixedly arranged on the moving seat, and the telescopic end of the telescopic device is fixedly connected to the slider; the upper end of the first connecting rod is rotatably connected to the first mounting frame, and the lower end of the first connecting rod is rotatably connected to the slider; the upper end of the second connecting rod is rotatably connected to the slider, and the lower end of the second connecting rod is rotatably connected to the second mounting frame.

4. The aluminum electrolytic cell cover plate correction device according to claim 3 is characterized in that: The linkage assembly includes two groups of connecting rod assemblies; Extension shafts are fixedly arranged on both symmetrical sides of the slider, wherein the lower end of the first connecting rod and the upper end of the second connecting rod of one group of the connecting rod assemblies are rotatably connected to one of the extension shafts, and the lower end of the first connecting rod and the upper end of the second connecting rod of another group of the connecting rod assemblies are rotatably connected to the other extension shaft.

5. The aluminum electrolytic cell cover plate correction device according to claim 1, characterized in that: The opening of the end limit slot is provided with a guiding inclined surface.

6. The aluminum electrolytic cell cover plate correction device according to claim 1, characterized in that: The traverse drive assembly includes a traverse screw rod, a drive motor and two guide rods; In the first direction, side panels are fixedly provided on the frames located on both sides of the movable seat; The two ends of the transverse screw rod are respectively rotatably connected to the corresponding side plates; The drive motor is fixedly arranged on a side of one of the side plates away from the moving seat, and an end of the traverse screw rod close to the drive motor extends out of the corresponding side plate, and the output end of the drive motor can be transmission-connected with the corresponding end of the traverse screw rod, and the output end of the drive motor can drive the traverse screw rod to rotate around a first axis, and the first axis is parallel to the first direction; The two guide rods are arranged in parallel with the transverse screw rod, and the two ends of the guide rods are respectively fixedly connected to the corresponding side plates; The movable seat is provided with a threaded hole and two guide holes, the threaded hole is threadedly connected with the transverse screw rod, and each guide hole is respectively provided with a guide rod.

7. The aluminum electrolytic cell cover plate correction device according to claim 2, characterized in that: The frame includes a supporting bottom frame, a top plate and a plurality of columns; In the third direction, the top plate is located above the supporting bottom frame, and the top plate is fixedly connected to the supporting bottom frame through the columns; The inner wall arc surface support plate is fixedly arranged on the support bottom frame; The lifting mechanism is arranged on the top plate, the outer wall arc surface support plate is located below the top plate, and the outer wall arc surface support plate is fixedly connected to the lifting end of the lifting mechanism.

8. The aluminum electrolytic cell cover plate correction device according to claim 2, characterized in that: The lifting mechanism comprises a lifting cylinder, a suspension plate and at least one guide slide rod; The lifting end of the lifting cylinder is fixedly connected to the suspension plate, and the frame is provided with at least one guide sliding hole, and each guide sliding hole is provided with a guide sliding rod slidingly inserted along the third direction; The suspension plate is located above the outer wall arc surface support plate, and the suspension plate is fixedly connected to the upper end of the outer wall arc surface support plate through a plurality of connecting rods.

9. The aluminum electrolytic cell cover plate correction device according to claim 6, characterized in that: One end of the transverse screw rod extending out of the side plate is fixedly provided with a first conical tooth, and the output end of the drive motor is fixedly provided with a second conical tooth, and the first conical tooth and the second conical tooth are meshed and transmitted.

10. A method for using the aluminum electrolytic cell cover plate correction device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, clamping the two ends of the aluminum electrolysis cell cover plate to be corrected in the corresponding end limit clamping grooves respectively, and making the outer wall of the aluminum electrolysis cell cover plate to be corrected contact with the arc-shaped fitting surface of the outer wall; S2, adjusting the movable seat to different positions of the inner wall of the aluminum electrolytic cell cover to be corrected by the transverse driving assembly, cooperating with the ejection driving assembly to extrude and fit the upper extrusion roller to the corresponding position of the aluminum electrolytic cell cover to be corrected, so as to complete the preliminary correction of the local position of the aluminum electrolytic cell cover to be corrected in the order of the middle and then the two sides of the inner wall of the aluminum electrolytic cell cover to be corrected; S3, then keep the upper extrusion roller in contact with the inner wall of the aluminum electrolysis cell cover to be corrected, and keep the lower extrusion roller in contact with the arc-shaped guide surface of the inner wall, and drive the movable seat to continuously reciprocate in the second direction through the transverse driving assembly to complete the final correction of the aluminum electrolysis cell cover to be corrected.

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