A tooling for repairing the aluminum electrolysis cell shell breaking cylinder and its operation method

Abstract

The present invention discloses a tooling for repairing the aluminum electrolysis crust breaking cylinder and its operation method. The tooling is composed of a cylinder support arm, a cylinder lifting hook, a pulley, a manual reversible ratchet winch, a cylinder rotating device, a steel wire rope and a combined fixture. The cylinder support arm consists of a base and a lifting arm; the lifting arm is welded on the base, and a cylinder lifting hook is installed under the lifting arm by winding a steel wire rope; one end of the steel wire rope is connected to a manual reversible ratchet winch fixed on the vertical arm of the lifting arm after passing through a pulley fixed on the horizontal arm of the lifting arm, and the other end of the steel wire rope is fixed at the end of the horizontal arm of the lifting arm through a fixing ring; the combined fixture is connected to the cylinder lifting hook through a pulling ring; the cylinder rotating device consists of a horizontal rotating shaft and a cylinder rotating shaft, the horizontal rotating shaft is welded on the cylinder rotating shaft, and the rotation of the cylinder is completed by the rotation of the cylinder rotating shaft. The tooling has a compact structure, and problems such as part loss and equipment damage will not occur during maintenance; it saves time and effort and has no safety hazards.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum electrolysis, and in particular to a tool for repairing an aluminum electrolysis shelling cylinder and an operating method thereof. Background Art

[0002] When repairing aluminum electrolytic shelling cylinders, the disassembly and installation process involves many parts, processes, and steps. When removing the cylinder head, it can only be knocked due to the strong magnetic self-locking magnet, causing damage to the equipment. In addition, the cylinder maintenance process is cumbersome, reflecting that when repairing the cylinder, it is necessary to perform disassembly and repair operations at multiple points such as front and back, up and down, and left and right, which restricts the improvement of the efficiency of cylinder repair work.

[0003] The failure forms of the cylinder are composed of aging of the seal, serious leakage, serious damage to the piston rod and cylinder barrel, etc. During repair, all parts are disassembled and the failed parts are replaced. During the assembly process, the cylinder needs to be placed vertically and inverted, which is easy to fall when the personnel are not stable. When assembling the piston rod, the gap between the cylinder barrel is too small, which may cause the maintenance personnel to be hit or pinched; the operation is completed by two people, and the cylinder needs to be fixed at multiple points and multiple times. Another person is required to fix the cylinder in time to repair the cylinder. It takes a lot of time to repair the shelled cylinder. Specifically, it includes: (1) The site is chaotic: there are many parts after disassembly, which occupies the site and is relatively chaotic. When walking, people may step on the cylinder parts and may fall. (2) Damage to equipment: When repairing the cylinder, because the cylinder head is a strong magnetic self-locking, when disassembling or assembling the cylinder head, because the self-locking device of the shelled cylinder head is a strong magnetic self-locking, it can only be disassembled and assembled by knocking the cylinder head with a copper rod, which will damage the upper and lower cylinder heads of the cylinder. The cylinder head damage rate is about 7% within 3 months. (3) There are safety hazards in the assembly process: During the assembly process, the cylinder needs to be placed vertically and inverted, which can easily tip over when the personnel exert unstable force. When assembling the piston rod, the gap between the cylinder barrel is too small, which may cause the maintenance personnel to be hit or pinched. (4) Time-consuming and labor-intensive: The operation is completed by two people, and the cylinder needs to be fixed at multiple points and multiple times, requiring another person to fix the cylinder in time to repair it. The team calculated that it takes 30 minutes to repair a shell cylinder. Summary of the invention

[0004] In order to solve the above technical problems, the purpose of the present invention is to provide a tool for repairing an aluminum electrolysis shelling cylinder and an operating method thereof.

[0005] A tooling for repairing the shell-breaking cylinder of aluminum electrolysis. This tooling consists of a cylinder support arm 1, a cylinder lifting hook 2, a pulley 3, a manual reversible ratchet winch 4, a cylinder rotating device 5, a steel wire rope 7, and a combination fixture 8. The cylinder support arm 1 is composed of a base 11 and a lifting arm 12. The base 11 is welded with the lifting arm 12. A cylinder lifting hook 2 is installed under the lifting arm 12 by winding with a steel wire rope 7. One end of the steel wire rope 7 passes through the pulley 3 fixed on the transverse arm of the lifting arm 12 and is connected to the manual reversible ratchet winch 4 fixed on the vertical arm of the lifting arm 12. The other end of the steel wire rope 7 is fixed at the end of the transverse arm of the lifting arm 12 through a fixing ring. The combination fixture 8 is connected to the cylinder lifting hook 2 through a pull ring. The cylinder rotating device 5 is composed of a transverse rotating shaft 51 and a cylinder rotating shaft 6. One end of the transverse rotating shaft 51 is welded on the base 11, and the other end is welded to the cylinder rotating shaft 6. The cylinder is clamped by rotating the transverse rotating shaft 51, and the cylinder is rotated by the rotation of the cylinder rotating shaft 6.

[0006] Further, the lifting arm 12 is in an inverted "L" shape. The vertical arm is a DN32 steel pipe with a length of 1450 mm, and the transverse arm is a steel pipe with a length of 450 mm. Two triangular support rods 121 are fixed at the right angle formed by the vertical arm and the transverse arm of the lifting arm 12.

[0007] Further, there are two pulleys 3.

[0008] Further, a winch handle 41 for taking in and paying out the steel wire rope 7 is provided on the manual reversible ratchet winch 4.

[0009] Further, a U-shaped protective clamp 511 is welded on the transverse rotating shaft 51 to prevent the rotating hands from slipping off when the cylinder is laid down for cylinder maintenance.

[0010] Further, the transverse rotating shaft 51 is a Φ35 steel bar with a length of 520 mm. A cylinder clamping arm 512 is also provided on it. The rotation of the transverse rotating shaft 51 makes the cylinder clamping arm 512 move back and forth. Slots are opened at the upper end of the cylinder clamping arm 512 and on the back channel steel. Open locating pins are used in the opened slots. When the cylinder arm is erected, the locating pins are put down to prevent the cylinder from toppling and injuring people after being erected.

[0011] Further, a jackscrew 61 is installed at the bottom of the cylinder rotating shaft 6 to fix the cylinder being repaired and prevent the cylinder from toppling and causing danger.

[0012] Further, the combined fixture 8 is a diamond-shaped fixture composed of a first clamping arm 81 and a second clamping arm 82; the first clamping arm 81 and the second clamping arm 82 are connected by an 8.8T-class bolt; the telescopic arms of the first clamping arm 81 are connected by an 8.8T-class bolt; the telescopic arms of the second clamping arm 82 are connected by an 8.8T-class bolt; the lower arms of the first clamping arm 81 and the second clamping arm 82 are parallel to each other, and a horizontal piston puller 83 is provided on the inner side of each lower arm; cylinder head pullers 85 are also provided at the ends on both sides of the lower arm, and an F-type puller 86 is provided below the cylinder head puller 85, so that the disassembly operation of the cylinder can be completed without replacing the fixture, saving time and effort; a fixture handle 84 is also welded on the combined fixture 8. To prevent the fixture from pinching fingers, the fixture handle is welded on the fixture. When pinched, the fixture opens, and when relaxed, the fixture clamps.

[0013] The operation method of the above-mentioned tooling for repairing the aluminum electrolysis crust-breaking cylinder is as follows. Specifically, it includes the following steps:

[0014] Step 1, move the cylinder to be repaired to the base 11 platform of the cylinder tooling, and use a wrench to disassemble the Y-shaped connecting pin and Y-shaped connection of the cylinder;

[0015] Step 2, place the cylinder to be repaired disassembled in Step 1 flat on the horizontal rotating shaft 51, clamp the cylinder with the cylinder clamping arm 512, and check whether the cylinder is properly engaged with the groove at the upper end of the cylinder clamping arm 512 and the groove on the back channel steel. Fix the opening positioning pin. After checking the U-shaped protective card 511, stand up the cylinder to be repaired by rotating it through the cylinder rotating shaft 6, and check the jackscrew 61 to prevent the cylinder from tipping over and causing danger;

[0016] Step 3, rotate and disassemble the cylinder bolts, and fix the bottom of the cylinder through the jackscrew 61 at the bottom of the cylinder rotating shaft 6;

[0017] Step 4, lower the combined fixture 8 through the winch handle 41 on the manual reversible ratchet winch 4. By operating the fixture handle 84 to pinch / relax, the first clamping arm 81 and the second clamping arm 82 cooperate with the piston puller 83, cylinder head puller 85 and F-type puller 86 to lift out the cylinder head, piston rod and cylinder barrel of the cylinder to be repaired in sequence and place them on the maintenance platform; among them, in the design of the combined fixture 8, when lifting a heavy object, the heavier the heavy object, the greater the clamping force of the fixture, the workpiece is not easy to fall off, and the disassembly operation of the cylinder can be completed without replacing the fixture;

[0018] Step 5, replace the damaged seals and cylinder components; lift the cylinder barrel, piston rod and cylinder head in; tighten the bolts, lower the cylinder, install the Y-shaped connection, and the cylinder repair is completed.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] (1) The tooling has a compact structure and delicate design.

[0021] (2) Since the tooling has changed the disassembly and assembly methods of repairing the cylinder, from the original knocking to pulling, the risks of bruising, pinching, and equipment damage have been avoided.

[0022] (3) After the tooling disassembles the cylinder, it is placed on a professional platform, preventing personnel from stepping on the cylinder parts and avoiding personnel from falling and getting injured.

[0023] (4) The tooling can be operated by one person for replacement, and there is a movable pulley block. The transmission ratio of the hand winch is 4:1, achieving the purpose of saving time and effort.

[0024] (5) Through the cylinder repair tooling, the expected safety effect has been achieved; the time required to repair each tapping cylinder has been reduced from 30 minutes per cylinder before the activity to 20 minutes per cylinder after the activity. While liberating the manpower, it has saved labor costs, avoided equipment damage caused by knocking, and saved spare part losses, with good economic effects. Description of the Drawings

[0025] Figure 1 It is a schematic structural view of the tooling for repairing the tapping cylinder of the present invention;

[0026] Figure 2 It is a front view of the cylinder rotating device of the present invention;

[0027] Figure 3 It is a side view of the cylinder rotating device of the present invention;

[0028] Figure 4 It is a working schematic view of the cylinder rotating device of the present invention;

[0029] Figure 5 Schematic structural view of the combined fixture of the present invention.

[0030] In the figure: 1. Cylinder support arm; 11. Base; 12. Suspension arm; 121. Triangular support rod; 2. Cylinder hook; 3. Pulley; 4. Manual reversible ratchet winch; 41. Winch handle; 5. Cylinder rotating device; 51. Horizontal rotating shaft; 511. U-shaped protective clamp; 512. Cylinder clamping arm; 6. Cylinder rotating shaft; 61. Jackscrew; 7. Steel wire rope; 8. Combined fixture; 81. First clamping arm; 82. Second clamping arm; 83. Piston puller; 84. Fixture handle; 85. Cylinder head puller; 86. F-shaped puller. Detailed Embodiments

[0031] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Example 1

[0033] Please refer to the attached Figures 1-5 , the present invention provides a tooling for repairing the aluminum electrolysis crust breaking cylinder. The tooling is composed of a cylinder support arm 1, a cylinder lifting hook 2, a pulley 3, a manual reversible ratchet winch 4, a cylinder rotating device 5, a steel wire rope 7 and a combined fixture 8; the cylinder support arm 1 is composed of a base 11 and a lifting arm 12; the base 11 is welded with the lifting arm 12, and the cylinder lifting hook 2 is installed under the lifting arm 12 by winding with the steel wire rope 7; one end of the steel wire rope 7 passes through the pulley 3 fixed on the horizontal arm of the lifting arm 12 and is connected to the manual reversible ratchet winch 4 fixed on the vertical arm of the lifting arm 12, and the other end of the steel wire rope 7 is fixed at the end of the horizontal arm of the lifting arm 12 through a fixing ring; the combined fixture 8 is connected to the cylinder lifting hook 2 through a pull ring; the cylinder rotating device 5 is composed of a horizontal rotating shaft 51 and a cylinder rotating shaft 6. One end of the horizontal rotating shaft 51 is welded on the base 11, and the other end is welded to the cylinder rotating shaft 6. The clamping of the cylinder is completed by the rotation of the horizontal rotating shaft 51, and the rotation of the cylinder rotating shaft 6 completes the rotation of the cylinder.

[0034] Preferably, the lifting arm 12 is in an inverted "L" shape. The vertical arm is a DN32 steel pipe with a length of 1450 mm, and the horizontal arm is a steel pipe with a length of 450 mm. Two triangular support rods 121 are fixed at the right angle formed by the vertical arm and the horizontal arm of the lifting arm 12.

[0035] Preferably, there are two pulleys 3.

[0036] Preferably, the manual reversible ratchet winch 4 is provided with a winch handle 41 for taking in and paying out the steel wire rope 7.

[0037] Preferably, a U-shaped protective clip 511 is welded on the horizontal rotating shaft 51 with a steel pipe to prevent the maintenance cylinder from rotating and slipping out of the hand when the cylinder is laid down.

[0038] Preferably, the horizontal rotating shaft 51 is a Φ35 steel bar with a length of 520 mm, and a cylinder clamping arm 512 is also provided thereon. The rotation of the horizontal rotating shaft 51 makes the cylinder clamping arm 512 move back and forth. The upper end of the cylinder clamping arm 512 is provided with a groove, and the back channel steel is provided with a groove. The opened groove is provided with a matching split pin. When the cylinder arm is erected, the positioning pin is put down to prevent the cylinder from toppling and injuring people after being erected.

[0039] Preferably, a jackscrew 61 is installed at the bottom of the cylinder rotating shaft 6 to fix the maintenance cylinder and prevent the cylinder from toppling and causing danger.

[0040] Preferably, the combined fixture 8 is a diamond-shaped fixture composed of a first clamping arm 81 and a second clamping arm 82; the first clamping arm 81 and the second clamping arm 82 are connected by 8.8T grade bolts; the telescopic arms of the first clamping arm 81 are connected by 8.8T grade bolts; the telescopic arms of the second clamping arm 82 are connected by 8.8T grade bolts; the lower arms of the first clamping arm 81 and the second clamping arm 82 are parallel to each other, and a horizontal piston puller 83 is provided on the inner side of each lower arm; there are also cylinder head pullers 85 at the ends on both sides of the lower arm, and an F-shaped puller 86 is provided at the lower part of the cylinder head puller 85, so that the disassembly operation of the cylinder can be completed without replacing the fixture, saving time and effort; a fixture handle 84 is also welded on the combined fixture 8. To prevent the fixture from pinching fingers, the fixture handle is welded on the fixture. When pinched, the fixture opens, and when relaxed, the fixture clamps.

[0041] Embodiment 2

[0042] The operation method of the above-mentioned tooling for repairing the aluminum electrolysis cell shell breaking cylinder specifically includes the following steps:

[0043] Step 1, move the cylinder to be repaired to the base 11 platform of the cylinder tooling, and use a wrench to disassemble the Y-shaped connecting pin and Y-shaped connection of the cylinder.

[0044] Step 2, place the disassembled cylinder to be repaired flat on the horizontal rotating shaft 51, clamp the cylinder with the cylinder clamping arm 512, and check whether the cylinder is properly engaged with the groove at the upper end of the cylinder clamping arm 512 and the groove on the back channel steel. Fix the opening positioning pin. After checking the U-shaped protective card 511, stand up the cylinder to be repaired by rotating the cylinder rotating shaft 6, and check the jackscrew 61 to prevent the cylinder from tipping over and causing danger.

[0045] Step 3, rotate and disassemble the cylinder bolts, and fix the bottom of the cylinder through the jackscrew 61 at the bottom of the cylinder rotating shaft 6.

[0046] Step 4, lower the combined fixture 8 through the winch handle 41 on the manual reversible ratchet winch 4. By pinching / relaxing the fixture handle 84, the first clamping arm 81 and the second clamping arm 82 cooperate with the piston puller 83, cylinder head puller 85 and F-shaped puller 86 to lift out the cylinder head, piston rod and cylinder barrel of the cylinder to be repaired in sequence and place them on the maintenance platform; among them, in the design of the combined fixture 8, when lifting a heavy object, the heavier the heavy object, the greater the clamping force of the fixture, the workpiece is not easy to fall off, and the disassembly operation of the cylinder can be completed without replacing the fixture.

[0047] Step 5, replace the damaged seals and cylinder components; lift the cylinder barrel, piston rod and cylinder head into place; tighten the bolts, lower the cylinder, install the Y-shaped connection, and the cylinder repair is completed.

[0048] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tooling for repairing the shell-breaking cylinder of aluminum electrolysis, characterized in that, this tooling is composed of a cylinder support arm (1), a cylinder hook (2), a pulley (3), a manual reversible ratchet winch (4), a cylinder rotating device (5), a steel wire rope (7) and a combined fixture (8); the cylinder support arm (1) consists of a base (11) and a lifting arm (12); the base (11) is welded with the lifting arm (12), and a cylinder hook (2) is installed under the lifting arm (12) by winding with a steel wire rope (7); one end of the steel wire rope (7) passes through the pulley (3) fixed on the transverse arm of the lifting arm (12) and then is connected with the manual reversible ratchet winch (4) fixed on the vertical arm of the lifting arm (12), and the other end of the steel wire rope (7) is fixed at the end of the transverse arm of the lifting arm (12) through a fixing ring; the combined fixture (8) is connected with the cylinder hook (2) through a pull ring; the cylinder rotating device (5) consists of a transverse rotating shaft (51) and a cylinder rotating shaft (6), one end of the transverse rotating shaft (51) is welded on the base (11), and the other end is welded with the cylinder rotating shaft (6), and the clamping of the cylinder is completed by rotating the transverse rotating shaft (51), and the rotation of the cylinder rotating shaft (6) completes the rotation of the cylinder; a U-shaped protective clamp (511) is welded on the transverse rotating shaft (51) with a steel pipe; the transverse rotating shaft (51) is a Φ35 steel bar with a length of 520 mm, and a cylinder clamping arm (512) is also arranged thereon. The rotation of the transverse rotating shaft (51) drives the cylinder clamping arm (512) to move back and forth to clamp the cylinder. The upper end of the cylinder clamping arm (512) is provided with a groove, and the back channel steel is provided with a groove. The provided grooves are equipped with matching split locating pins.

2. The tooling for repairing the shell-breaking cylinder of aluminum electrolysis according to claim 1, characterized in that, the lifting arm (12) is an inverted "L" shape, the vertical arm is a DN32 steel pipe with a length of 1450 mm, the transverse arm is a steel pipe with a length of 450 mm, and two triangular support rods (121) are fixed at the right angle formed by the vertical arm and the transverse arm of the lifting arm (12).

3. The tooling for repairing the shell-breaking cylinder of aluminum electrolysis according to claim 1, characterized in that, there are two pulleys (3).

4. The tooling for repairing the shell-breaking cylinder of aluminum electrolysis according to claim 1, characterized in that, a winch handle (41) for taking in and paying out the steel wire rope (7) is arranged on the manual reversible ratchet winch (4).

5. The tooling for repairing the shell-breaking cylinder of aluminum electrolysis according to claim 1, characterized in that, a jackscrew (61) is additionally installed at the bottom of the cylinder rotating shaft (6).

6. The tooling for repairing the shell-breaking cylinder of aluminum electrolysis according to claim 1, characterized in that, The combined fixture (8) is a diamond-shaped fixture composed of a first clamping arm (81) and a second clamping arm (82); the first clamping arm (81) and the second clamping arm (82) are connected by 8.8T grade bolts; the telescopic arms of the first clamping arm (81) are connected by 8.8T grade bolts; the telescopic arms of the second clamping arm (82) are connected by 8.8T grade bolts; the lower arms of the first clamping arm (81) and the second clamping arm (82) are parallel to each other, and a transverse piston puller (83) is provided on the inner side of each lower arm; there are also cylinder head pullers (85) at the ends on both sides of the lower arm, and an F-shaped puller (86) is provided at the lower part of the cylinder head puller (85); a fixture handle (84) is also welded on the combined fixture (8).

7. An operating method for a tooling for repairing an aluminum electrolysis cell shell-breaking cylinder Characterized in that Specifically includes the following steps: Step 1, Move the cylinder to be repaired to the platform of the base (11) of the tooling for the cylinder, and use a wrench to disassemble the Y-shaped connecting pin and Y-shaped connection of the cylinder; Step 2, Place the cylinder to be repaired disassembled in Step 1 flat on the transverse rotating shaft (51), clamp the cylinder with the cylinder clamping arm (512), and check whether the cylinder is properly engaged with the groove at the upper end of the cylinder clamping arm (512) and the groove on the back channel steel, and fix the opening positioning pin; after checking the U-shaped protective clamp (511), stand up the cylinder to be repaired by rotating it through the cylinder rotating shaft (6); Step 3, Rotate and disassemble the cylinder bolts, and fix the bottom of the cylinder through the jackscrew (61) at the bottom of the cylinder rotating shaft (6); Step 4, Lower the combined fixture (8) through the winch handle (41) on the manual reversible ratchet winch (4), and through the tightening / relaxing operation of the fixture handle (84), the first clamping arm (81) and the second clamping arm (82) cooperate with the piston puller (83), cylinder head puller (85) and F-shaped puller (86) to lift out the cylinder head, piston rod and cylinder barrel of the cylinder to be repaired in sequence and place them on the maintenance platform; Step 5, Replace the damaged seals and cylinder components; lift the cylinder barrel, piston rod and cylinder head into place; tighten the bolts, lower the cylinder, install the Y-shaped connection, and the cylinder repair is completed.

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