Passivation device for liner protection cover

Abstract

The utility model relates to the technical field of passivation film repair, and discloses a passivation device for an inner container protective cover, which comprises a passivation pool, a sealing plate is rotatably arranged on the passivation pool, a plurality of planet shafts are rotatably arranged on the sealing plate, the planet shafts are positioned on the same circumference, and the inner container protective cover is arranged on the inner container protective cover. One end of the planet shaft penetrates into the passivation pool and is connected with a clamp, the clamp is used for clamping and fixing an inner container protection cover, the other end of the planet shaft is fixedly connected with a planet gear, the passivation pool is fixedly connected with a mounting frame, and the mounting frame is fixedly connected with an annular gear. According to the utility model, the planet shaft rotates to drive the sealing plate to rotate, the sealing plate rotates to drive the clamp to rotate, so that the clamp circularly reciprocates at different depths in the passivation pool, and the liner protection cover on the clamp stirs a passivation solution in the passivation pool in the process of circularly reciprocating, so as to improve the uniformity of the concentration of the passivation solution in the pool.

Description

Technical Field

[0001] The utility model relates to the technical field of passivation film repair, and more specifically, to a passivation device for an inner tank protective cover. Background Art

[0002] The stainless steel liner protection cover has good corrosion resistance due to its dense passivation film on the surface, and is widely used in various liner sealing fields. However, during the machining process such as cutting, grinding and welding, the liner protection cover is prone to damage and thermal impact on the passivation film, which reduces the protective performance of the passivation film on the surface of the liner protection cover, resulting in corrosion on the surface of the liner protection cover.

[0003] Most of the existing passivation methods use chemical reactions to repair the passivation film, that is, the inner liner protective cover is placed in a passivation tank, and the passivation liquid in the tank is used to repair the damaged passivation film of the inner liner protective cover. However, the concentration of the passivation liquid in the passivation tank is uneven due to factors such as static sedimentation and ionization. When a batch of inner liner protective covers enter the passivation tank, the passivation repair speed of the inner liner protective covers at different depths is inconsistent due to the uneven concentration of the passivation liquid. In order to ensure the quality of the passivation repair of all the inner liner protective covers, it often takes more time to ensure the passivation quality. This process reduces the work efficiency of the passivation repair of the inner liner protective cover. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a passivation device for an inner liner protective cover, which has the advantage of improving the working efficiency of the passivation repair of the inner liner protective cover.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a passivation device for an inner liner protective cover, comprising a passivation tank, a sealing plate rotatably mounted on the passivation tank, a plurality of planetary shafts rotatably mounted on the sealing plate, the plurality of planetary shafts being on the same circumference, one end of the planetary shaft passing through the passivation tank and connected with a clamp, the clamp being used to clamp and fix the inner liner protective cover, a planetary gear being fixedly connected to the other end of the planetary shaft, a mounting frame being fixedly connected to the passivation tank, a ring gear being fixedly connected to the mounting frame, the ring gear matching the planetary gear, a motor being fixedly connected to the mounting frame, a central gear being coaxially fixedly connected to the output shaft of the motor, the central gear matching the planetary gear.

[0006] As a preferred technical solution of the utility model, the clamp includes a U-shaped clamping piece, and screw holes are provided on two opposite side walls of the clamping piece, and locking bolts are screwed into the screw holes.

[0007] As a preferred technical solution of the utility model, an anti-slip pad is fixedly connected to the locking bolt.

[0008] As a preferred technical solution of the utility model, a friction wheel is rotatably mounted on the mounting frame, the friction wheel is threadedly connected to the reciprocating screw, a connecting rod is fixedly connected to the end of the reciprocating screw, a piston is fixedly connected to the connecting rod, a cylinder body is fixedly connected to the passivation tank, and the piston is slidably fitted in the cylinder body.

[0009] As a preferred technical solution of the present invention, the axis of the reciprocating screw is kept parallel to the axis of the cylinder.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model drives the sealing plate to rotate through the revolution of the planetary shaft, and the rotation of the sealing plate drives the clamp to revolve, so that the clamp moves back and forth at different depths in the passivation tank. During the reciprocating movement, the inner tank protective cover on the clamp stirs the passivation liquid in the passivation tank to improve the uniformity of the concentration of the passivation liquid in the tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a partial cross-sectional view of the utility model;

[0014] Figure 3 This is a diagram showing the coordination between the ring gear, the central gear and the planetary gears of the utility model;

[0015] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle.

[0016] In the figure: 1. passivation tank; 2. sealing plate; 3. mounting frame; 4. ring gear; 5. central gear; 6. planetary gear; 7. motor; 8. planetary shaft; 9. clamping piece; 10. screw hole; 11. locking bolt; 12. anti-skid pad; 13. friction wheel; 14. reciprocating screw; 15. connecting rod; 16. cylinder body; 17. piston. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] like Figures 1 to 4As shown, the utility model provides a passivation device for an inner liner protective cover, comprising a passivation tank 1, a sealing plate 2 is rotatably mounted on the passivation tank 1, a plurality of planetary shafts 8 are rotatably mounted on the sealing plate 2, the plurality of planetary shafts 8 are on the same circumference, one end of the planetary shaft 8 passes through the passivation tank 1 and is connected with a clamp, the clamp is used to clamp and fix the inner liner protective cover, the other end of the planetary shaft 8 is fixedly connected to a planetary gear 6, a mounting frame 3 is fixedly connected to the passivation tank 1, a ring gear 4 is fixedly connected to the mounting frame 3, the ring gear 4 matches the planetary gear 6, a motor 7 is fixedly connected to the mounting frame 3, a central gear 5 is coaxially fixedly connected to the output shaft of the motor 7, and the central gear 5 matches the planetary gear 6.

[0019] When the passivation device is in use, the inner liner protection covers are installed into the fixture one by one, and the inner liner protection covers are connected to the planetary shaft 8 by using the fixture, and then the motor 7 is started.

[0020] After the motor 7 is started, it will drive the central gear 5 to rotate. Since the central gear 5 is meshed with the planetary gears 6, the planetary gears 6 will be driven to rotate during the rotation of the central gear 5. In addition, since the planetary gears 6 are meshed with the ring gear 4 and the ring gear 4 is fixed on the mounting frame 3, the planetary gears 6 will also revolve along the ring gear 4 during the rotation process. Since the planetary gears 6 are fixedly connected to the planetary shaft 8, the planetary gears 6 will drive the planetary shaft 8 to move synchronously during the rotation and revolution process.

[0021] As for the rotation of the planetary shaft 8, the rotation of the planetary shaft 8 will drive the self-rotation of the fixture, and the self-rotation of the fixture will drive the self-rotation of the inner liner protection cover, thereby ensuring that each side of the inner liner protection cover can be evenly in contact with the passivation liquid.

[0022] As for the revolution of the planetary shaft 8, the revolution of the planetary shaft 8 drives the sealing plate 2 to rotate, and the rotation of the sealing plate 2 drives the fixture to revolve, so that the fixture moves back and forth at different depths in the passivation tank 1. During the reciprocating movement, the inner tank protective cover on the fixture stirs the passivation liquid in the passivation tank 1 to improve the uniformity of the passivation liquid concentration in the tank.

[0023] like Figure 3 As shown in FIG. 4 , the clamp includes a U-shaped clamping member 9. Screw holes 10 are provided on two opposite side walls of the clamping member 9. Locking bolts 11 are screwed into the screw holes 10.

[0024] When clamping and fixing the inner liner protective cover, first move the inner liner protective cover to the inside of the clamping part 9, and then drive the locking bolt 11 to rotate. Since the locking bolt 11 is threadedly connected in the screw hole 10, under the action of the lead screw, the locking bolt 11 moves axially to abut against the inner liner protective cover, thereby fixing the inner liner protective cover by friction.

[0025] In addition, if Figure 4As shown, an anti-skid pad 12 is fixed to the locking bolt 11. The anti-skid pad 12 is located between the locking bolt 11 and the inner liner protection cover. It can greatly increase the friction coefficient between the locking bolt 11 and the inner liner protection cover, thereby improving the friction force between the two to ensure the stability of the clamping fixation.

[0026] like Figure 1 As shown in Figure 3, a friction wheel 13 is rotatably mounted on the mounting frame 3, and the friction wheel 13 is screwed on a reciprocating screw 14. A connecting rod 15 is fixedly connected to the end of the reciprocating screw 14, and a piston 17 is fixedly connected to the connecting rod 15. A cylinder body 16 is fixedly connected to the passivation tank 1, and the piston 17 is slidably fitted in the cylinder body 16. The axis of the reciprocating screw 14 remains parallel to the axis of the cylinder body 16.

[0027] A belt is installed on the output shaft of the motor 7 and the friction wheel 13. In this way, after the motor 7 is started, the motor 7 will drive the friction wheel 13 to rotate through the belt. Since the reciprocating screw 14 is threadedly connected to the friction wheel 13, under the action of the lead screw, the friction wheel 13 will drive the reciprocating screw 14 to perform linear reciprocating motion in the axial direction. During the linear reciprocating motion, the reciprocating screw 14 will drive the piston 17 to perform linear reciprocating motion in the cylinder body 16 through the connecting rod 15. The linear reciprocating motion of the piston 17 in the cylinder body 16 will cause the pressure in the cylinder body 16 to increase and decrease periodically.

[0028] When the pressure in the cylinder 16 decreases, the passivation liquid at the bottom of the passivation tank 1 will be sucked into the cylinder 16, and when the pressure in the cylinder 16 increases, the passivation liquid in the cylinder 16 will be discharged into the passivation tank 1. In this way, when the pressure in the cylinder 16 increases and decreases periodically, the cylinder 16 will periodically suck and discharge the passivation liquid in the passivation tank 1, thereby forming turbulence in the passivation tank 1. Under the action of turbulence, the uniformity of ions between the upper and lower layers of the passivation liquid will be significantly improved.

[0029] The working principle and use process of this utility model:

[0030] When the passivation device is in use, the inner liner protection covers are installed into the fixture one by one, and the inner liner protection covers are connected to the planetary shaft 8 by using the fixture, and then the motor 7 is started.

[0031] After the motor 7 is started, it will drive the central gear 5 to rotate. Since the central gear 5 is meshed with the planetary gears 6, the planetary gears 6 will be driven to rotate during the rotation of the central gear 5. In addition, since the planetary gears 6 are meshed with the ring gear 4 and the ring gear 4 is fixed on the mounting frame 3, the planetary gears 6 will also revolve along the ring gear 4 during the rotation process. Since the planetary gears 6 are fixedly connected to the planetary shaft 8, the planetary gears 6 will drive the planetary shaft 8 to move synchronously during the rotation and revolution process.

[0032] As for the rotation of the planetary shaft 8, the rotation of the planetary shaft 8 will drive the self-rotation of the fixture, and the self-rotation of the fixture will drive the self-rotation of the inner liner protection cover, thereby ensuring that each side of the inner liner protection cover can be evenly in contact with the passivation liquid.

[0033] As for the revolution of the planetary shaft 8, the revolution of the planetary shaft 8 drives the sealing plate 2 to rotate, and the rotation of the sealing plate 2 drives the fixture to revolve, so that the fixture moves back and forth at different depths in the passivation tank 1. During the reciprocating movement, the inner tank protective cover on the fixture stirs the passivation liquid in the passivation tank 1 to improve the uniformity of the passivation liquid concentration in the tank.

[0034] like Figure 3 As shown in FIG. 4 , the clamp includes a U-shaped clamping member 9. Screw holes 10 are provided on two opposite side walls of the clamping member 9. Locking bolts 11 are screwed into the screw holes 10.

[0035] When clamping and fixing the inner liner protective cover, first move the inner liner protective cover to the inside of the clamping part 9, and then drive the locking bolt 11 to rotate. Since the locking bolt 11 is threadedly connected in the screw hole 10, under the action of the lead screw, the locking bolt 11 moves axially to abut against the inner liner protective cover, thereby fixing the inner liner protective cover by friction.

[0036] In addition, if Figure 4 As shown, an anti-skid pad 12 is fixed to the locking bolt 11. The anti-skid pad 12 is located between the locking bolt 11 and the inner liner protection cover. It can greatly increase the friction coefficient between the locking bolt 11 and the inner liner protection cover, thereby improving the friction force between the two to ensure the stability of the clamping fixation.

[0037] A belt is installed on the output shaft of the motor 7 and the friction wheel 13. In this way, after the motor 7 is started, the motor 7 will drive the friction wheel 13 to rotate through the belt. Since the reciprocating screw 14 is threadedly connected to the friction wheel 13, under the action of the lead screw, the friction wheel 13 will drive the reciprocating screw 14 to perform linear reciprocating motion in the axial direction. During the linear reciprocating motion, the reciprocating screw 14 will drive the piston 17 to perform linear reciprocating motion in the cylinder body 16 through the connecting rod 15. The linear reciprocating motion of the piston 17 in the cylinder body 16 will cause the pressure in the cylinder body 16 to increase and decrease periodically.

[0038] When the pressure in the cylinder 16 decreases, the passivation liquid at the bottom of the passivation tank 1 will be sucked into the cylinder 16, and when the pressure in the cylinder 16 increases, the passivation liquid in the cylinder 16 will be discharged into the passivation tank 1. In this way, when the pressure in the cylinder 16 increases and decreases periodically, the cylinder 16 will periodically suck and discharge the passivation liquid in the passivation tank 1, thereby forming turbulence in the passivation tank 1. Under the action of turbulence, the uniformity of ions between the upper and lower layers of the passivation liquid will be significantly improved.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A passivation device for a liner protective cover, comprising a passivation tank (1), characterized in that: A sealing plate (2) is rotatably mounted on the passivation tank (1), and a plurality of planetary shafts (8) are rotatably mounted on the sealing plate (2), the plurality of planetary shafts (8) being on the same circumference, one end of the planetary shaft (8) passes through the passivation tank (1) and is connected to a clamp, the clamp being used to clamp and fix the inner tank protective cover, the other end of the planetary shaft (8) is fixedly connected to a planetary gear (6), a mounting frame (3) is fixedly connected to the passivation tank (1), a ring gear (4) is fixedly connected to the mounting frame (3), the ring gear (4) matches the planetary gear (6), a motor (7) is fixedly connected to the mounting frame (3), a central gear (5) is coaxially fixedly connected to the output shaft of the motor (7), and the central gear (5) matches the planetary gear (6).

2. A passivation device for a liner protective cover according to claim 1, characterized in that: The clamp comprises a U-shaped clamping piece (9), and screw holes (10) are provided on two opposite side walls of the clamping piece (9), and locking bolts (11) are screwed into the screw holes (10).

3. A passivation device for a liner protective cover according to claim 2, characterized in that: An anti-slip pad (12) is fixedly connected to the locking bolt (11).

4. A passivation device for a liner protective cover according to any one of claims 1 to 3, characterized in that: A friction wheel (13) is rotatably mounted on the mounting frame (3), the friction wheel (13) is screwed onto a reciprocating screw (14), a connecting rod (15) is fixedly connected to the end of the reciprocating screw (14), a piston (17) is fixedly connected to the connecting rod (15), a cylinder body (16) is fixedly connected to the passivation tank (1), and the piston (17) is slidably fitted in the cylinder body (16).

5. A passivation device for a liner protective cover according to claim 4, characterized in that: The axis of the reciprocating screw (14) remains parallel to the axis of the cylinder (16).

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