Aluminum electrolytic cell cover plate straightening device and method of use thereof

Abstract

The application discloses a kind of aluminum electrolytic cell cover plate correcting device and its using method, it is related to cover plate correcting technical field, including frame, inner wall arc support plate, outer wall arc support plate, moving assembly and ejecting assembly;Outer wall arc support plate is located above inner wall arc support plate, and the concave surface of the outer wall arc-shaped surface of inner wall arc support plate and outer wall arc support plate is opposite;Moving assembly includes moving seat and is used for moving the horizontal movement drive assembly of moving seat;Ejecting assembly includes upper extrusion roller, lower extrusion roller and ejecting drive assembly;Ejecting drive assembly has synchronous reverse telescopic upper telescopic end and lower telescopic end, which are connected with corresponding upper extrusion roller and lower extrusion roller respectively.By setting synchronous reverse movement upper extrusion roller and lower extrusion roller in the up-down position of moving seat, so that upper extrusion roller can be profiled according to the arc size of inner wall arc support plate Corrective treatment, avoid the damage of reinforcing rib outside cover plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cover plate correction, in particular to an aluminum electrolysis cell cover plate correction device and a method for using the same. BACKGROUND

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

[0003] The aluminum electrolysis cell cover plate is a curved surface structure with a certain curvature, and in order to reduce the weight, reinforcing ribs are welded outside the thin plate. The ordinary correction device is only composed of two rotating pressure rollers, which will cause damage to the external reinforcing ribs during correction and affect the correction effect due to uneven stress. Therefore, it needs to be improved. SUMMARY

[0004] The purpose of the present application is to provide an aluminum electrolysis cell cover plate correction device and a method for using the same to solve the problems existing in the prior art, and to reduce the extrusion damage to the external reinforcing ribs of the aluminum electrolysis cell cover plate during correction.

[0005] To achieve the above-mentioned purpose, the present application provides the following solutions:

[0006] The application provides an aluminum electrolytic cell cover plate correcting device, which comprises a frame, an inner wall arc surface support plate, an outer wall arc surface 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 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 guiding 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 concave surfaces of the inner wall arc-shaped guiding surface and the outer wall arc-shaped fitting surface are opposite to each other, the concave surface of the outer wall arc-shaped fitting surface has the same arc degree as the outer wall arc degree of the aluminum electrolytic cell cover plate to be corrected, and the concave surface of the inner wall arc-shaped guiding surface has the same arc degree as the inner wall arc degree of the aluminum electrolytic cell cover plate to be corrected; the moving assembly comprises a moving seat and a transverse movement driving assembly; in the third direction, the moving seat is located between the inner wall arc-shaped guiding surface and the outer wall arc-shaped fitting surface; the transverse movement driving assembly is used for driving the moving seat to move in the first direction; the ejection assembly comprises 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 moving seat, and the lower extrusion roller is located below the moving seat; the ejection driving assembly is arranged on the moving seat, and the ejection driving assembly has an upper telescopic end and a lower telescopic end which can be telescopically extended in the third direction; the upper telescopic end and the lower telescopic end can be synchronously and reversely telescopically extended in the third direction; the upper extrusion roller is rotationally connected to the upper telescopic end, and the lower extrusion roller is rotationally connected to the lower telescopic end; in the second direction, end limiting clamping grooves are arranged on both sides of the frame, respectively; the two ends of the aluminum electrolytic cell cover plate to be corrected are clamped in the corresponding end limiting clamping grooves, respectively; when the upper extrusion roller is fitted on the inner wall surface of the aluminum electrolytic cell cover plate to be corrected, the lower extrusion roller is kept in position fitting with the inner wall arc-shaped guiding surface.

[0007] Preferably, a lifting mechanism is arranged on the frame, the outer wall arc surface support plate is fixedly arranged on 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 move up and down along the third direction.

[0008] Preferably, the ejection driving assembly comprises a first mounting frame, a second mounting frame and two linkage assemblies; the first mounting frame is located above the moving base in the third direction, and the second mounting frame is located below the moving base; the upper extrusion roller is rotationally connected to the first mounting frame, and the lower extrusion roller is rotationally connected to the second mounting frame; the linkage assembly comprises a telescopic device, a sliding block and at least one set of linkage assemblies; the linkage assembly comprises a first linkage and a second linkage; the sliding block is slidingly arranged on the moving base in the second direction, the telescopic device is fixedly arranged on the moving base, and the telescopic end of the telescopic device is fixedly connected with the sliding block; the upper end of the first linkage is rotationally connected with the first mounting frame, and the lower end of the first linkage is rotationally connected with the sliding block; the upper end of the second linkage is rotationally connected with the sliding block, and the lower end of the second linkage is rotationally connected with the second mounting frame.

[0009] Preferably, the linkage assembly comprises two sets of linkage assemblies; the sliding block is fixedly provided with a protruding shaft on each of the two symmetrical sides, the lower end of the first linkage and the upper end of the second linkage of one set of linkage assemblies are rotationally connected with one of the protruding shafts, and the lower end of the first linkage and the upper end of the second linkage of the other set of linkage assemblies are rotationally connected with the other protruding shaft.

[0010] Preferably, the opening of the end limiting clamping groove is provided with a guide inclined surface.

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

[0012] Preferably, the frame comprises a supporting base plate, a top plate and a plurality of columns; in the third direction, the top plate is located above the supporting base plate, and the top plate is fixedly connected with the supporting base plate through each column; the inner wall arc-shaped supporting plate is fixedly arranged on the supporting base plate; the lifting mechanism is arranged on the top plate, the outer wall arc-shaped supporting plate is located below the top plate, and the outer wall arc-shaped supporting plate is fixedly connected with the lifting end of the lifting mechanism.

[0013] Preferably, the lifting mechanism comprises a lifting cylinder, a suspension plate and at least one guide sliding rod; the lifting end of the lifting cylinder is fixedly connected with the suspension plate, the frame has at least one guide sliding hole, each guide sliding hole is provided with one guide sliding rod which slides in the third direction; the suspension plate is located above the outer wall arc-shaped supporting plate, and the suspension plate is fixedly connected with the upper end of the outer wall arc-shaped supporting plate through a plurality of connecting rods.

[0014] Preferably, a first bevel gear is fixedly arranged at one end of the transverse moving screw rod which extends out of the side plate, a second bevel gear is fixedly arranged at the output end of the driving motor, and the first bevel gear is in meshing transmission with the second bevel gear.

[0015] The application also provides a use method of the aluminum electrolytic cell cover plate correcting device, comprising the following steps:

[0016] S1, the two ends of the aluminum electrolytic cell cover plate to be corrected are respectively clamped in the corresponding end limiting clamping grooves, and the outer wall of the aluminum electrolytic cell cover plate to be corrected is in contact with the outer wall arc-shaped abutting surface;

[0017] S2, the moving seat is adjusted to different positions of the inner wall of the aluminum electrolytic cell cover plate to be corrected through the transverse driving assembly, and the upper extrusion roller is extruded and abutted on the corresponding position of the aluminum electrolytic cell cover plate to be corrected through the ejection driving assembly, so that the aluminum electrolytic cell cover plate to be corrected is preliminarily corrected in the order of the middle part and then the two sides of the inner wall.

[0018] S3, then the upper extrusion roller is kept in abutment with the inner wall of the aluminum electrolytic cell cover plate to be corrected, and the lower extrusion roller is kept in abutment with the inner wall arc-shaped guide surface, and the moving seat is continuously reciprocated in the second direction through the transverse driving assembly, so that the final correction of the aluminum electrolytic cell cover plate to be corrected is completed.

[0019] The application has the following technical effects compared with the prior art:

[0020] The aluminum electrolysis cell cover plate correcting device provided by the application is characterized in that corresponding upper extrusion rollers and lower extrusion rollers are arranged at the upper end and the lower end of the moving seat respectively, the upper extrusion rollers and the lower extrusion rollers are in synchronous reverse movement, the lower extrusion rollers are in extrusion cooperation with the inner wall arc-shaped guide surface, the upper extrusion rollers can be synchronized to perform profiling correction treatment according to the arc size of the inner wall arc-shaped guide surface consistent with the inner wall arc of the aluminum electrolysis cell cover plate to be corrected, the excessive extrusion of the upper extrusion rollers on the inner wall of the aluminum electrolysis cell cover plate is avoided, and the damage of the reinforcing ribs on the outer wall of the aluminum electrolysis cell cover plate caused by the corresponding excessive extrusion between the outer wall of the aluminum electrolysis cell cover plate and the outer wall arc-shaped fitting surface of the outer wall arc surface support plate is avoided, the end limiting clamping groove is used for limiting the positions of the two ends of the aluminum electrolysis cell cover plate, the outer wall arc surface support plate is used for limiting the position of the outer wall of the aluminum electrolysis cell cover plate, and the upper extrusion rollers are used for correcting extrusion of the inner wall surface of the aluminum electrolysis cell cover plate, and the whole device has a simple structure and stable and reliable correction.

[0021] Further, the lifting mechanism can drive the outer wall arc surface support plate to move in the third direction to approach the outer wall of the aluminum electrolysis cell cover plate to be corrected, thereby pushing the end of the aluminum electrolysis cell cover plate to be more accurately located in the end limiting clamping groove, completing the correction of the end of the aluminum electrolysis cell cover plate and achieving more stable and reliable clamping effect of the end of the aluminum electrolysis cell cover plate, so that the end of the aluminum electrolysis cell cover plate is corrected, and the lifting mechanism can drive the outer wall arc surface support plate to more accurately limit the position of the outer wall of the aluminum electrolysis cell cover plate, so as to cooperate with the upper extrusion rollers to achieve more accurate correction, and the lifting mechanism drives the outer wall arc surface support plate to ascend and descend to expand the space between the outer wall arc surface support plate and the upper extrusion rollers, thereby facilitating the taking and placing of the aluminum electrolysis cell cover plate.

[0022] Further, the sliding block is driven by the telescopic device to slide on the moving seat, and cooperates with the first connecting rod and the second connecting rod to realize synchronous reverse telescopic action of the upper extrusion rollers and the lower extrusion rollers, which has a simple structure.

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

[0024] Further, the guide inclined surface arranged at the opening of the end limiting clamping groove can enable the end of the aluminum electrolysis cell cover plate to enter even if the end is tilted, thereby ensuring the correction effect of the end.

[0025] Further, the two guide rods can ensure the stable movement effect of the transverse lead screw, and the guide rods can provide support force in the direction of gravity of the moving seat, so that the movement of the moving seat is more stable and reliable, and the problem of jamming between the moving seat and the transverse lead screw is reduced.

[0026] Further, the frame is composed of a supporting bottom frame, a top plate and a plurality of columns, which has a simple structure, is stable and reliable, and is convenient for processing and manufacturing.

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

[0028] Furthermore, the transverse lead screw and the drive motor are connected by a transmission mesh of first conical teeth and second conical teeth. This structure is simple and can reduce the space occupied by the drive motor in the axial direction of the transverse lead screw. By matching first conical teeth and second conical teeth of different sizes, the transverse lead screw can achieve rotational effects at different speeds.

[0029] The present invention also provides a method of using the above-mentioned aluminum electrolytic cell cover plate correction device. First, the aluminum electrolytic cell cover plate is initially corrected at different points, in the order of first the middle and then the two sides. This allows the initially corrected aluminum electrolytic cell cover plate to better reduce the correction difficulty for subsequent continuous correction. With the subsequent continuous correction process, the aluminum electrolytic cell cover plate is finally corrected stably and accurately. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the overall structure of the aluminum electrolytic cell cover plate straightening device provided by the present invention.

[0032] Figure 2 This is a front view of the aluminum electrolytic cell cover straightening device provided by the present invention;

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

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

[0035] Figure 5 for Figure 4 The front view;

[0036] Figure 6 This is a schematic diagram of the ejector assembly mounted on a movable base in the aluminum electrolytic cell cover straightening device provided by the present invention.

[0037] Figure 7 forFigure 6 a front view of the device;

[0038] Figure 8 a structure diagram of the clamp of the aluminum electrolysis cell cover plate correcting device provided by the application;

[0039] Figure 9 a structure diagram of the bottom of the device; Figure 4

[0040] in the figure:

[0041] 100-aluminum electrolysis cell cover plate correcting device;

[0042] 10-frame; 11-supporting bottom frame; 12-stand; 13-top plate; 14-side plate; 15-lifting mechanism; 151-lifting cylinder; 152-hanging plate; 153-guiding slide rod; 154-connecting rod; 16-clamp; 161-end position limiting clamping groove; 162-guiding inclined surface;

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

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

[0045] 40-ejecting assembly; 41-upper extrusion roller; 42-first mounting frame; 43-linkage assembly; 431-telescopic device; 432-sliding block; 433-first connecting rod; 434-second connecting rod; 435-protruding shaft; 44-second mounting frame; 45-lower extrusion roller; 46-supporting plate;

[0046] 50-outer wall arc surface supporting plate. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0048] The application aims to provide an aluminum electrolysis cell cover plate correcting device and a use method thereof, so as to solve the problems in the prior art, complete the correction of the aluminum electrolysis cell cover plate, and reduce the extrusion damage to the external reinforcing ribs.

[0049] In order to make the above-mentioned purposes, characteristics and advantages of the application more obvious and easy to understand, the application will be further described in detail below with reference to the drawings and specific embodiments.

[0050] ​Example 1

[0051] This embodiment provides an aluminum electrolytic cell cover plate straightening device 100, such as... Figures 1-9 As shown, the system includes a frame 10, an inner curved support plate 20, an outer curved support plate 50, a moving assembly 30, and an ejection assembly 40. The length direction of the frame 10 is taken as the first direction, the width direction of the frame 10 as the second direction, and the height direction of the frame 10 as the third direction. In the third direction, the inner curved support plate 20 is fixedly disposed at the lower inner end of the frame 10. The inner curved support plate 20 has an inner curved guide surface. In the third direction, the outer curved support plate... 50 is disposed inside the upper part of the frame 10. The outer wall arc support plate 50 has an outer wall arc-shaped contact surface; the inner wall arc guide surface and the concave surface of the outer wall arc contact surface are opposite each other. The concave curvature of the outer wall arc contact surface is the same as the outer wall curvature of the aluminum electrolytic cell cover plate 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 plate to be corrected; the moving assembly 30 includes a moving seat 31 and a transverse drive assembly; in the third direction, the moving seat 31 is located on the inner wall arc... Between the guide surface and the outer wall arc-shaped contact surface; the transverse drive assembly is used to drive the moving seat 31 to move along the first direction; the ejection assembly 40 includes an upper extrusion roller 41, a lower extrusion roller 45 and an ejection drive assembly; in the third direction, the upper extrusion roller 41 is located above the moving seat 31 and the lower extrusion roller 45 is located below the moving seat 31; the ejection drive assembly is disposed on the moving seat 31 and has an upper telescopic end and a lower telescopic end that extend and retract along the third direction, and the upper telescopic end and the lower telescopic end can extend and retract synchronously in the opposite direction in the third direction; the upper extrusion roller 41 is rotatably connected to the upper telescopic end, and the lower extrusion roller 45 is rotatably connected to the lower telescopic end; in the second direction, end limiting slots 161 are respectively provided on both sides of the frame 10, and the two ends of the aluminum electrolytic cell cover plate to be corrected are respectively locked in the corresponding end limiting slots 161; when the upper extrusion roller 41 is attached to the inner wall surface of the aluminum electrolytic cell cover plate to be corrected, the lower extrusion roller 45 is attached to the inner wall arc-shaped guide surface at the same position.

[0052] The upper extrusion roller 41 and the lower extrusion roller 45 are synchronously and reversely moved, the lower extrusion roller 45 is extruded with the inner wall arc-shaped guide surface, the upper extrusion roller 41 can be synchronously profiled according to the arc dimension of the inner wall arc-shaped guide surface consistent with the inner wall arc of the aluminum electrolysis cell cover plate to be corrected, the excessive extrusion of the upper extrusion roller 41 to the inner wall of the aluminum electrolysis cell cover plate is avoided, and the damage of the reinforcing rib on the outer wall of the aluminum electrolysis cell cover plate caused by the excessive extrusion between the outer wall of the aluminum electrolysis cell cover plate and the outer wall arc-shaped fitting surface of the outer wall arc surface support plate 50 is avoided. The end limiting clamping groove 161 is used for limiting the position of the two ends of the aluminum electrolysis cell cover plate, the outer wall arc surface support plate 50 is used for limiting the position of the outer wall of the aluminum electrolysis cell cover plate, and the upper extrusion roller 41 is used for correcting and extruding the inner wall surface of the aluminum electrolysis cell cover plate. The whole device has simple structure, stable and reliable correction.

[0053] In the structure of the frame 10, the following is described:

[0054] In the optional scheme of the embodiment, preferably, as shown in the figure, Figures 1-4 The frame 10 includes a support base frame 11, a top plate 13 and a plurality of columns 12. In the third direction, the top plate 13 is located above the support base frame 11, and the top plate 13 is fixedly connected with the support base frame 11 through each column 12. The inner wall arc surface support plate 20 is fixedly arranged on the support base frame 11. The lifting mechanism 15 is arranged on the top plate 13, and the outer wall arc surface support plate 50 is located below the top plate 13 and is fixedly connected with the lifting end of the lifting mechanism 15. The frame 10 is composed of the support base frame 11, the top plate 13 and the plurality of columns 12, which has simple structure, stable and reliable, and is convenient for processing and manufacturing.

[0055] Specifically, the structure of the support base frame 11: the support base frame 11 can be processed by welding square tubes, which can reduce the overall weight and processing difficulty under the premise of ensuring the structural strength. In this embodiment, three horizontal square tubes and two vertical square tubes are arranged and welded with each other. The two ends of the support base frame 11 are provided with side plates 14, which are vertically arranged on the left and right sides of the upper surface of the support base frame 11. In order to ensure that the side plates 14 and the support base frame 11 can be stably connected, as shown in the figure, Figure 1 The lower part of the side plate 14 is provided with a front and rear facing bottom plate, which is welded and connected with the square tube of the support base frame 11, and the side plate 14 is welded on the bottom plate. At the same time, several reinforcing ribs are welded between the outer side wall of the side plate 14 and the support base frame 11, so that the side plate 14 has sufficient rigidity and stability.

[0056] Specifically, as shown in the figure, Figure 1 The two ends of the support base frame 11 are provided with columns 12.

[0057] In an optional embodiment of the present embodiment, preferably, as shown in Figures 1-3 The lifting mechanism 15 is arranged on the frame 10 (specifically on the top plate 13), and the outer wall arc support plate 50 is fixedly arranged on the lifting end of the lifting mechanism 15. The lifting end of the lifting mechanism 15 can drive the outer wall arc support plate 50 to lift along the third direction. The lifting mechanism 15 can drive the outer wall arc support plate 50 to move towards the outer wall of the aluminum electrolysis cell cover plate to be corrected in the third direction, so as to push the end of the aluminum electrolysis cell cover plate to be more accurately located in the end limiting clamping groove 161, complete the correction of the end of the aluminum electrolysis cell cover plate, and achieve more stable and reliable clamping effect of the end, so that the distortion of the end is corrected; and the lifting mechanism 15 can drive the outer wall arc support plate 50 to more accurately limit the position of the outer wall of the aluminum electrolysis cell cover plate, so as to cooperate with the upper extrusion roller 41 to achieve more accurate correction; the outer wall arc support plate 50 is lifted and lowered by the lifting mechanism 15, so as to expand the space between the outer wall arc support plate 50 and the upper extrusion roller 41, facilitating the taking and placing of the aluminum electrolysis cell cover plate.

[0058] In an optional embodiment of the present embodiment, preferably, as shown in Figure 1 and Figure 3 The lifting mechanism 15 includes a lifting cylinder 151, a suspension plate 152 and at least one guide sliding rod 153. The lifting end of the lifting cylinder 151 is fixedly connected with the suspension plate 152, and the frame 10 has at least one guide sliding hole. Each guide sliding hole is slidably provided with one guide sliding rod 153 along the third direction. The suspension plate 152 is located above the outer wall arc support plate 50, and the suspension plate 152 is fixedly connected with the upper end of the outer wall arc support plate 50 by a plurality of connecting rods 154. The lifting mechanism 15 adopts the lifting cylinder 151 cooperating with the guide sliding rod 153, and the guide sliding rod 153 assists the stability of the lifting direction. The outer wall arc support plate 50 and the suspension plate 152 are connected by a plurality of connecting rods 154, which has a lighter structure and reduces the weight.

[0059] Specifically, the lifting cylinder 151 controls the up-down movement of the outer wall arc support plate 50, and provides a downward pressure by the lifting cylinder 151. In order to prevent the outer wall arc support plate 50 from being subjected to a lateral force and causing damage to the piston rod of the lifting cylinder 151, the guide sliding rods 153 are arranged around the suspension plate 152. The limiting effect of the guide sliding rods 153 enables the suspension plate 152 to stably move up and down.

[0060] The structure of the moving assembly 30 is described as follows:

[0061] In an optional embodiment of the present embodiment, preferably, as shown in Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the horizontal movement driving assembly comprises a horizontal movement screw rod 32, a driving motor 33 and two guide rods 34; in the first direction, a side plate 14 is fixedly arranged on the frame 10 on both sides of the moving seat 31; the two ends of the horizontal movement screw rod 32 are rotatably connected with the corresponding side plates 14; the driving motor 33 is fixedly arranged on the side of one of the side plates 14 away from the moving seat 31, the end of the horizontal movement screw rod 32 close to the driving motor 33 extends out of the corresponding side plate 14, the output end of the driving motor 33 can be in transmission connection with the corresponding end of the horizontal movement screw rod 32, and the output end of the driving motor 33 can drive the horizontal movement screw rod 32 to rotate around the first axis, which is parallel to the first direction; the two guide rods 34 are arranged in parallel with the horizontal movement screw rod 32, and the two ends of the guide rod 34 are fixedly connected with the corresponding side plates 14; the moving seat 31 is provided with a threaded hole and two guide holes, the threaded hole is in threaded connection with the horizontal movement screw rod 32, and one guide rod 34 is arranged in each guide hole. The two guide rods 34 can ensure the stable movement effect of the horizontal movement screw rod 32, and the guide rod 34 can provide support force in the direction of the gravity of the moving seat 31, so that the movement of the moving seat 31 is more stable and reliable, and the problem of jamming between the moving seat 31 and the horizontal movement screw rod 32 is also reduced.

[0062] In an optional embodiment of the present embodiment, more preferably, Figure 1 and Figure 4 As shown, the end of the horizontal movement screw rod 32 extending out of the side plate 14 is fixedly provided with a first conical gear 35, the output end of the driving motor 33 is fixedly provided with a second conical gear 36, and the first conical gear 35 is in meshing transmission with the second conical gear 36. The first conical gear 35 and the second conical gear 36 are used for transmission between the horizontal movement screw rod 32 and the driving motor 33, which has a simple structure, can reduce the space occupied by the driving motor 33 in the axial direction of the horizontal movement screw rod 32, and can match the first conical gear 35 and the second conical gear 36 of different sizes to realize the rotating effect of the horizontal movement screw rod 32 at different speeds.

[0063] Specifically, the first conical gear 35 and the second conical gear 36 of different sizes can realize the effect of a speed reducer.

[0064] Among them, the related structure of the ejection assembly 40 is explained as follows:

[0065] In an optional embodiment of the present embodiment, more preferably, Figures 1-2 and Figures 4-7 and Figure 9As shown, the ejection driving assembly comprises 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 base 31, and the second mounting frame 44 is located below the moving base 31; the upper extrusion roller 41 is rotationally connected to the first mounting frame 42, and the lower extrusion roller 45 is rotationally connected to the second mounting frame 44; the linkage assembly 43 comprises a telescopic device 431, a sliding block 432 and at least one set of linkage assemblies; the linkage assembly comprises a first linkage 433 and a second linkage 434; the sliding block 432 is slidingly arranged on the moving base 31 in the second direction, the telescopic device 431 is fixedly arranged on the moving base 31, and the telescopic end of the telescopic device 431 is fixedly connected with the sliding block 432 (a push block is fixedly connected on the sliding block 432, and the telescopic end of the telescopic device 431 is fixedly connected with the push block); the upper end of the first linkage 433 is rotationally connected with the first mounting frame 42, and the lower end of the first linkage 433 is rotationally connected with the sliding block 432; the upper end of the second linkage 434 is rotationally connected with the sliding block 432, and the lower end of the second linkage 434 is rotationally connected with the second mounting frame 44. The sliding block 432 is driven by the telescopic device 431 to slide on the moving base 31, and cooperates with the first linkage 433 and the second linkage 434, so as to realize the synchronous reverse telescopic action of the upper extrusion roller 41 and the lower extrusion roller 45, which is simple and convenient in structure; the two linkage assemblies 43 can make the telescopic action of the upper extrusion roller 41 and the lower extrusion roller 45 more stable and reliable.

[0066] Specifically, the upper end of the first linkage 433 is rotationally connected with a supporting plate 46, and the supporting plate 46 is fixedly connected with the first mounting frame 42; similarly, the lower end of the second linkage 434 is rotationally connected with a supporting plate 46, and the supporting plate 46 is fixedly connected with the second mounting frame 44.

[0067] Specifically, the two sliding blocks 432 move reversely and synchronously.

[0068] Specifically, the telescopic device 431 is an ejection cylinder, and the gas sources of the two ejection cylinders are connected with the same gas source, so that the piston rods of the two ejection cylinders can be simultaneously extended or retracted, so that the front and rear sliding blocks 432 can be synchronously close to or away from each other.

[0069] In an optional solution of the embodiment, more preferably, as shown in the figure, Figure 6 As shown, the linkage assembly 43 comprises two sets of linkage assemblies; the sliding block 432 is fixedly provided with an extension shaft 435 on each of the two symmetrical sides, the lower end of the first linkage 433 and the upper end of the second linkage 434 of one set of linkage assemblies are rotationally connected with one of the extension shafts 435, and the lower end of the first linkage 433 and the upper end of the second linkage 434 of the other set of linkage assemblies are rotationally connected with the other extension shaft 435. Each linkage assembly 43 adopts two sets of linkage 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, reversely and equidistantly, that is, the upper extrusion roller 41 and the lower extrusion roller 45 are away from or close to the moving seat 31 at the same time, and the moving distance is the same, so when the lower extrusion roller 45 falls on the upper concave surface of the inner wall arc supporting plate 20, the upper extrusion roller 41 also moves to the corresponding concave surface position of the aluminum electrolysis cell cover plate, so the arc formed by the maximum height of the upper extrusion roller 41 is symmetrical with the upper concave surface of the inner wall arc supporting plate 20, so that the inner wall of the aluminum electrolysis cell cover plate can be extruded by the upper extrusion roller 41, so that the inner wall of the aluminum electrolysis cell cover plate can be corrected.

[0071] In addition, the following related descriptions are provided:

[0072] In the optional solution of the embodiment, preferably, as shown in Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 8 , the opening of the end limiting clamping groove 161 is provided with a guide inclined surface 162. The guide inclined surface 162 provided at the opening of the end limiting clamping groove 161 can still enable the end of the aluminum electrolysis cell cover plate to enter through the guide inclined surface 162 even if it is skewed, thereby ensuring the correction effect on the end.

[0073] Specifically, the corresponding clamping head 16 is arranged at the inner side of the upper end of the side plate 14, and the clamping head 16 is provided with an end limiting clamping groove 161.

[0074] Specifically, the clamping head 16 is arranged at the top of the side plate 14 near the center of the supporting bottom frame 11, and the internal cross section of the end limiting clamping groove 161 is a rectangle, and the cross section of the rectangle is the same as the thickness dimension of the end of the aluminum electrolysis cell cover plate, so that even if the aluminum electrolysis cell cover plate is skewed, it can still enter the internal through the guide inclined surface 162 of the end limiting clamping groove 161, and with the extrusion of the upper and lower sides, the end of the aluminum electrolysis cell cover plate will be inserted into the rectangular position inside the end limiting clamping groove 161, so that the skewed state of the aluminum electrolysis cell cover plate itself is corrected, which is more accurate than the ordinary correction equipment which can only change the curvature of the middle part of the aluminum electrolysis cell cover plate. In addition, the rotating seat connected with the clamping head 16 is arranged to have a certain angle limit, so that the clamping head 16 can only be rotated downward by a certain angle at most, and the angle is the angle after the normally sized aluminum electrolysis cell cover plate contacts the clamping head 16, so as to avoid free rotation of the clamping head 16, which causes the position where the clamping head 16 contacts the cover plate to be folded upward and affect the final correction effect.

[0075] Specifically, in order to reduce the weight of the whole device, the inner wall arc support plate 20 and the outer wall arc support plate 50 are both arranged in an arc structure. The processing surface is processed by casting and milling bed processing in the early stage, which causes the fixed surface of the inner wall arc support plate 20 and the outer wall arc support plate 50 to also be arc-shaped, and cannot be fixed by simple welding. Therefore, the connecting rods 154 are welded between the inner wall arc support plate 20 and the support 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 support bottom frame 11 are connected by the connecting rods 154, and the outer wall arc support plate 50 and the suspension plate 152 are connected by the connecting rods 154. The two ends of the connecting rods 154 are fixed by welding, which enables the stress of the inner wall arc support plate 20 and the outer wall arc support plate 50 to be stably transmitted to the support bottom frame 11 and the suspension plate 152 through the multiple connecting rods 154. Since the support bottom frame 11 is welded by square tubes, the contact area is smaller than that of a conventional entire flat plate base. At this time, the connecting rods 154 can be divided into three rows to fix the inner wall arc support plate 20 and the support bottom frame 11, so as to ensure the stability of the inner wall arc support plate 20 under the premise of small contact area.

[0076] Embodiment Two

[0077] The embodiment provides a use method of the aluminum electrolysis cell cover plate correcting device 100 based on embodiment one, which comprises the following steps:

[0078] S1, the two ends of the aluminum electrolysis cell cover plate to be corrected are clamped in the corresponding end limiting clamping grooves 161 respectively, and the outer wall of the aluminum electrolysis cell cover plate to be corrected is in contact with the outer wall arc-shaped abutting surface;

[0079] S2, the moving seat 31 is adjusted to different positions of the inner wall of the aluminum electrolysis cell cover plate to be corrected by the transverse movement driving assembly, and the upper extrusion roller 41 is extruded and abutted on the corresponding position of the aluminum electrolysis cell cover plate to be corrected by the ejection driving assembly, so as to complete the preliminary correction of the local position of the aluminum electrolysis cell cover plate to be corrected in the order of the middle part and then the two sides of the inner wall of the aluminum electrolysis cell cover plate to be corrected;

[0080] S3, then the upper extrusion roller 41 is kept in abutment with the inner wall of the aluminum electrolysis cell cover plate to be corrected, and the lower extrusion roller 45 is kept in abutment with the inner wall arc-shaped guide surface, and the moving seat 31 is continuously reciprocated in the second direction by the transverse movement driving assembly, so as to complete the final correction of the aluminum electrolysis cell cover plate to be corrected.

[0081] First, the aluminum electrolytic cell cover plate is preliminarily corrected at different points, and the middle part is corrected first, and then the two sides are corrected in sequence, so that the aluminum electrolytic cell cover plate can be better for subsequent continuous correction to reduce the correction difficulty, and finally realize the stable and accurate correction of the aluminum electrolytic cell cover plate.

[0082] Specific process description:

[0083] First, the aluminum electrolytic cell cover plate is removed from the two sides, and some sealing elements and connecting elements on the top are removed, and the cover plate is moved to the front of the device by the row of hangers or cranes for correction processing.

[0084] Clamping of the cover plate: the cover plate is moved to the front side of the chuck 16 by the crane so that the inner wall is downward, and the cover plate is moved left and right so that the left and right ends of the cover plate are aligned with the end limiting clamping groove 161 of the left and right chucks 16. At this time, since the end limiting clamping groove 161 has a guide slope 162, even if the end of the cover plate is twisted, the end of the cover plate can still be inserted into the end limiting clamping groove 161 of the chuck 16. From front to back, the end of the cover plate is inserted into the end limiting clamping groove 161 of the chuck 16. At this time, the lifting rope is disconnected from the cover plate, and the clamping process of the cover plate is completed.

[0085] Straightening of the cover plate end: start the lifting cylinder 151, and the lifting cylinder 151 drives the suspension plate 152 to move downward, and the outer wall arc support plate 50 moves downward and presses against 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 will move outward and insert into the end limiting clamping groove 161 of the chuck 16. At this time, the end of the cover plate will slide inward along the guide slope 162 of the end limiting clamping groove 161. When the end of the cover plate is completely inserted into the rectangular part of the end limiting clamping groove 161, the distortion of the end of the cover plate has been corrected.

[0086] Correction of the inner wall of the cover plate: start the drive motor 33, adjust the moving seat 31 to the center position of the device, and then start the telescopic device 431. At this time, the upper extrusion roller 41 is extended, and the upper extrusion roller 41 pushes the middle part of the cover plate upward to realize the initial extrusion of the middle part. After extrusion is completed, the moving seat 31 can be adjusted several times left and right to preliminarily extrude the left and right positions of the inner wall of the cover plate. At this time, the inner wall size of the cover plate is roughly corrected. Subsequently, the drive motor 33 is continuously started, the drive motor 33 drives the moving seat 31 to move left and right, and the telescopic device 431 is continuously pressed. The lower extrusion roller 45 rolls left and right along the lower inner wall arc support plate 20, so that the upper extrusion roller 41 moves left and right to simulate the arc angle of the lower inner wall arc support plate 20, so that the left and right moving upper extrusion roller 41 continuously corrects the inner wall of the cover plate, and finally completes the correction of the entire cover plate.

[0087] After the completion of the correction process, stop driving motor 33, reverse start telescopic device 431, so that the upper extrusion roller 41 and the inner wall of the cover plate are separated, and reverse start lifting cylinder 151, so that the outer wall arc support plate 50 and the outside of the cover plate are separated, connect the lifting rope of the crane with the upper part of the cover plate, and keep the tension of the lifting rope, slide out the cover plate to the front side, so that the cover plate and the chuck 16 are separated, and the cover plate can be transferred away by the crane.

[0088] Specifically, in order to facilitate the force in the embodiment, the air cylinder can be used as a power unit, when the air source of some workshops is not stable, or the output force of the air cylinder itself cannot meet the correction demand, the hydraulic cylinder can be used as the lifting cylinder 151 and the telescopic device 431 to improve the output force, and only the additional configuration of the hydraulic station can work.

[0089] The principle and implementation of the present application are described by applying specific examples in the present application, and the above examples are only used to help understand the method and core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, the specific implementation and application range will be changed. In view of the above, the content of the specification should not be understood as a limitation of the present application.

Claims

1. An aluminium reduction cell lid straightening device characterised by: The frame, the inner wall arc support plate, the outer wall arc support plate, the moving assembly and the ejection assembly are included. The length direction of the frame is the first direction, the width direction of the frame is the second direction, and the height direction of the frame is the third direction. In the third direction, the inner wall arc support plate is fixedly arranged at the inner lower end of the frame, and the inner wall arc support plate has an inner wall arc-shaped guiding 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-shaped fitting surface; the concave surfaces of the inner wall arc-shaped guiding surface and the outer wall arc-shaped fitting surface are opposite to each other, the concave surface of the outer wall arc-shaped fitting surface has the same arc as the outer wall arc of the aluminum electrolytic cell cover plate to be corrected, and the concave surface of the inner wall arc-shaped guiding surface has the same arc as the inner wall arc of the aluminum electrolytic cell cover plate to be corrected. The moving assembly includes a moving seat and a transverse driving assembly; in the third direction, the moving seat is located between the inner wall arc-shaped guiding surface and the outer wall arc-shaped fitting surface; and the transverse driving assembly is used for driving the moving seat to move in 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 moving seat, and the lower extrusion roller is located below the moving seat; the ejection driving assembly is arranged on the moving seat, and the ejection driving assembly has an upper telescopic end and a lower telescopic end which are telescopic in the third direction, and the upper telescopic end and the lower telescopic end are synchronously and reversely telescopic in the third direction; the upper extrusion roller is rotationally connected to the upper telescopic end, and the lower extrusion roller is rotationally connected to the lower telescopic end. In the second direction, end limiting clamping grooves are arranged on both sides of the frame, and the two ends of the aluminum electrolytic cell cover plate to be corrected are clamped in the corresponding end limiting clamping grooves. When the upper extrusion roller is fitted to the inner wall surface of the aluminum electrolytic cell cover plate to be corrected, the lower extrusion roller is fitted to the inner wall arc-shaped guiding surface.

2. The aluminium electrolysis cell lid straightening device according to claim 1, c h a r a c t e r i s e d i n that: A lifting mechanism is arranged on the frame, the outer wall arc support plate is fixedly arranged on the lifting end of the lifting mechanism, and the lifting end of the lifting mechanism can drive the outer wall arc support plate to lift in the third direction.

3. The aluminium electrolysis cell lid straightening device according to claim 1, c h a r a c t e r i z e d i n that: The ejection driving 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 extrusion roller is rotationally connected to the first mounting frame, and the lower extrusion roller is rotationally connected to the second mounting frame. The linkage assembly comprises a telescopic device, a sliding block and at least one linkage assembly; the linkage assembly comprises a first linkage and a second linkage; the sliding block is arranged on the moving base and slides in the second direction; the telescopic device is fixedly arranged on the moving base, and a telescopic end of the telescopic device is fixedly connected with the sliding block; the upper end of the first linkage is rotatably connected with the first mounting frame, and the lower end of the first linkage is rotatably connected with the sliding block; the upper end of the second linkage is rotatably connected with the sliding block, and the lower end of the second linkage is rotatably connected with the second mounting frame.

4. The aluminium electrolysis cell lid straightening device according to claim 3, c h a r a c t e r i z e d b y that: The linkage assembly comprises two linkage assemblies; The sliding block is fixedly provided with an extension shaft on each of the two symmetrical sides, the lower end of the first linkage and the upper end of the second linkage of one of the linkage assemblies are rotatably connected with one of the extension shafts, and the lower end of the first linkage and the upper end of the second linkage of the other linkage assembly are rotatably connected with the other extension shaft.

5. The aluminum electrolysis cell lid straightening device of claim 1, wherein: The opening of the end limiting clamping groove is provided with a guide inclined surface.

6. The aluminum electrolysis cell lid straightening device of claim 1, wherein: The transverse movement driving assembly comprises a transverse movement screw rod, a driving motor and two guide rods; In the first direction, a side plate is fixedly arranged on each of the two sides of the frame; The two ends of the transverse movement screw rod are rotatably connected with the corresponding side plates, respectively; The driving motor is fixedly arranged on the side of one of the side plates away from the moving base, one end of the transverse movement screw rod close to the driving motor extends out of the corresponding side plate, the output end of the driving motor can be in transmission connection with the corresponding end of the transverse movement screw rod, and the output end of the driving motor can drive the transverse movement screw rod to rotate around a first axis, the first axis is parallel to the first direction; The two guide rods are arranged in parallel with the transverse movement screw rod, and the two ends of the guide rods are fixedly connected with the corresponding side plates, respectively; The moving base is provided with a threaded hole and two guide holes, the transverse movement screw rod is threadedly connected in the threaded hole, and one of the guide rods is arranged in each of the guide holes.

7. The aluminium electrolysis cell lid straightening device according to claim 2, c h a r a c t e r i z e d b y that: The frame comprises a support base frame, a top plate and a plurality of stand columns; In the third direction, the top plate is located above the support base frame, and the top plate is fixedly connected with the support base frame through the stand columns; The inner wall arc support plate is fixedly arranged on the support base frame; The lifting mechanism is arranged 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 with the lifting end of the lifting mechanism.

8. The aluminium electrolysis cell lid straightening device according to claim 2, c h a r a c t e r i z e d i n that: The lifting mechanism comprises a lifting cylinder, a suspension plate and at least one guide sliding rod; The lifting end of the lifting cylinder is fixedly connected with the suspension plate, the frame is provided with at least one guide sliding hole, and one of the guide sliding rods is arranged in each of the guide sliding holes and slides in the third direction; The suspension plate is located above the outer wall arc support plate, and the suspension plate is fixedly connected with the upper end of the outer wall arc support plate through a plurality of connecting rods.

9. The aluminium electrolysis cell lid straightening device according to claim 6, c h a r a c t e r i z e d i n that: The first taper tooth is fixedly arranged at one end of the side plate extended by the transverse moving screw, and the second taper tooth is fixedly arranged at the output end of the driving motor, and the first taper tooth is in meshing transmission with the second taper tooth.

10. A method of using the aluminum cell lid straightening apparatus of any of claims 1-9, characterized by: The method comprises the following steps: S1, the two ends of the aluminum electrolysis cell cover to be corrected are respectively clamped in the corresponding end limiting clamping groove, and the outer wall of the aluminum electrolysis cell cover to be corrected is in contact with the outer wall arc-shaped abutting surface; S2, the moving seat is adjusted to different positions of the inner wall of the aluminum electrolysis cell cover to be corrected by the transverse moving driving assembly, and the upper extrusion roller is extruded and abutted on the corresponding position of the aluminum electrolysis cell cover to be corrected by the ejection driving assembly, so that the aluminum electrolysis cell cover to be corrected is preliminarily corrected in sequence from the middle to the two sides of the inner wall; S3, then the upper extrusion roller is kept in abutment with the inner wall of the aluminum electrolysis cell cover to be corrected, and the lower extrusion roller is kept in abutment with the inner wall arc-shaped guide surface, and the moving seat is continuously reciprocated in the second direction by the transverse moving driving assembly, so that the final correction of the aluminum electrolysis cell cover to be corrected is completed.

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