Seamless steel tube pickling device and method

Abstract

The invention discloses a seamless steel pipe pickling device and method, and relates to the field of pickling machining, the seamless steel pipe pickling device comprises a machining pool, the outer wall of the machining pool is fixedly connected with a first motor, the first motor is rotationally connected with a clamping circular plate through a connecting piece, and the seamless steel pipe pickling device further comprises an adjusting assembly; and a stirring assembly. A second motor is started to adjust rotation of a threaded rod, so that two moving plates drive clamping circular plates to move towards the two ends of a filter barrel, at the moment, square blocks are matched with vertical grooves, installation of the filter barrel and the clamping circular plates is completed, a first motor is started to adjust the two clamping circular plates and the filter barrel to rotate, and the clamping circular plates are driven to move towards the two ends of the filter barrel. A steel pipe placed in the filter barrel is in full contact with a solution in the processing tank in the rotating process, and meanwhile, a rod body I drives a linkage gear to rotate through transmission of a chain, so that other gears in meshed connection with the linkage gear realize autorotation; furthermore, the stirring blades in the filter barrel rotate to turn over and stir the steel pipe in the filter barrel and make full contact with the pickling liquid, and the pickling machining effect is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of pickling processing, and in particular to a pickling device and method for seamless steel pipes. Background Art

[0002] Stainless steel seamless pipes are widely used in various industries because of their good mechanical properties. However, a thicker oxide layer will appear on the surface of the material during the heat treatment process, so the surface needs to be further treated. The pickling process is derived. The surface of the seamless steel pipe after pickling and passivation will become a uniform silver-white color, which not only greatly improves the corrosion resistance of stainless steel, but also improves the effect of painting and spraying, which significantly improves the appearance quality and service life of the steel pipe.

[0003] The existing pickling device still has the following problems when in use: the existing pickling device needs to be packaged in groups and placed into the pickling tank for pickling processing. In this way, the zero-distance contact between the grouped steel pipes causes the pickling solution to be unable to completely contact the outer surface of the steel pipe, resulting in poor pickling processing effect.

[0004] Therefore, it is necessary to invent a seamless steel pipe pickling device and method to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a seamless steel pipe pickling device and method to solve the problem that the existing pickling device proposed in the above background technology needs to pack the steel pipes into groups and put them into the pickling tank for pickling processing when in use. The zero-distance contact between the grouped steel pipes causes the pickling solution to be unable to completely contact the outer surface of the steel pipe, resulting in poor pickling processing effect.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a seamless steel pipe pickling device, comprising a processing pool, the outer wall of the processing pool is fixedly connected to a motor 1, and the motor 1 is rotatably connected to a clamping circular plate through a connecting piece, and the clamping circular plate is movably connected to a filter barrel, and further comprising:

[0007] The adjusting component, the outer wall of the processing pool is fixedly connected with the second motor, and the output shaft of the second motor is drivingly connected with a threaded rod, and the outer ring of the threaded rod is threadedly connected with a moving plate, and the moving plate moves inside the strip groove reserved inside the processing pool, and a rotation connection is formed between the moving plate and the clamping circular plate, so that the moving plate drives the clamping circular plate to move synchronously so that the clamping circular plate can clamp and install the filter barrel;

[0008] A stirring component, wherein a cavity one is reserved inside the filter barrel, and the inner wall of the cavity one is rotatably connected to a stirring shaft, and the outer wall of the stirring shaft is fixedly connected to a stirring blade, a large gear is fixedly sleeved on the outer wall of the stirring shaft, and small gears are meshingly connected on both sides of the large gear, and the small gear is meshingly connected to a linkage gear through a notch communicated with the cavity one, the notch is connected to the cavity one, the linkage gear is rotatably connected to the cavity two reserved inside the processing pool through the gear shaft, the gear shaft inserted into the inner ring of the linkage gear is rotatably connected to the inner wall of the cavity three reserved inside the processing pool, the rotation of the filter barrel drives the rotation of the stirring blade, and stirs the steel pipe inside the filter barrel.

[0009] Preferably, the connecting member consists of a rod body one and a rod body two movably connected to the rod body one, the rod body one is slidably connected to the cylindrical groove reserved inside the rod body two, and the limit block fixedly connected to the end of the rod body one is slidably connected to the limit groove reserved inside the rod body two, and the limit groove is communicated with the cylindrical groove, and both ends of the limit groove are closed, so that when the clamping circular plates move toward or away from each other, the rod body one and the rod body two in the active state will still synchronously drive the rotation of the clamping circular plates when driven by the motor one.

[0010] Preferably, one end of the two rod bodies without a limit block is rotatably connected to the output shaft of the motor and the inner wall of the processing pool respectively, and the rod body 2 movably mounted on the outer ring of the rod body 1 is fixedly connected to the outer walls of the two clamping circular plates respectively, so that the rod body 1 that is transmission connected to the driving shaft of the motor 1 synchronously drives the rotation of the rod body 2 movably mounted on the outer ring of the rod body 1 when it rotates, and the rotation of the rod body 2 drives the rotation of the clamping circular plate.

[0011] Preferably, an annular groove is reserved inside the clamping circular plate, and the inner wall of the annular groove is in contact with the outer wall of the movable plate and is rotatably connected, so that when the threaded rod rotates, the two movable plates move toward or away from each other and synchronously drive the clamping circular plate to move;

[0012] A vertical groove is reserved inside the clamping circular plate, and the vertical groove is matched with a block fixedly connected to the end wall of the filter barrel to achieve a matching connection, so that the filter barrel and the clamping circular plate can be installed. When the clamping circular plate rotates, the filter barrel rotates synchronously.

[0013] Preferably, a movable sleeve rod is fixedly connected between the two clamping circular plates, and the movable sleeve rod matches the columnar interlocking groove reserved inside the filter barrel to ensure that the movement of the two clamping circular plates is not affected.

[0014] Preferably, the outer ring of the threaded rod is provided with two sections of threads, and the two sections of threads have different thread directions, and the two movable plates are respectively threadedly connected with the two sections of threads, and the side walls of the two movable plates are in contact with the inner walls of the strip grooves to realize a sliding connection, so that when the threaded rod rotates, the two movable plates move toward or away from each other, and when the two movable plates move toward or away from each other, they simultaneously drive the clamping circular plate to move, thereby facilitating the disassembly and assembly of the clamping circular plate and the filter barrel.

[0015] Preferably, the two end portions of the gear shaft inserted into the inner ring of the pinion gear are rotatably connected to the inner wall of the notch to ensure smooth rotation of the pinion gear.

[0016] Preferably, the gear shaft inserted into the inner ring of the linkage gear is connected to the rod body 1 which is connected to the output shaft of the motor through a chain, and the chain is in the cavity 3. When the motor 1 rotates, it drives the linkage gear to rotate synchronously, which facilitates the subsequent meshing connection between the linkage gear and the small gear and the large gear.

[0017] The present invention also provides a seamless steel pipe pickling method, which uses the above-mentioned seamless steel pipe pickling device, and the specific operating steps are as follows:

[0018] Step 1: Place the steel pipe to be processed into the filter barrel through the opening of the filter barrel;

[0019] Step 2: Start the second motor to adjust the rotation of the threaded rod so that the two moving plates drive the clamping circular plate to move toward the two ends of the filter barrel. At this time, the square blocks match the vertical grooves, thus completing the installation of the filter barrel and the clamping circular plate.

[0020] Step three, subsequently starting motor 1 mobilizes the rotation of the two clamping circular plates and the filter barrel. The steel pipe placed inside the filter barrel is fully in contact with the solution inside the processing tank during the rotation. At the same time, rod body 1 drives the rotation of the linkage gear through the transmission of the chain, so that other gears meshing with the linkage gear can realize self-rotation, and then the stirring blade inside the filter barrel rotates to stir the steel pipe inside the filter barrel and fully contact it with the pickling liquid.

[0021] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0022] The present invention starts motor 2 to adjust the rotation of the threaded rod so that the two movable plates drive the clamping circular plates to move toward the two ends of the filter barrel. At this time, the square blocks match the vertical grooves, thereby completing the installation of the filter barrel and the clamping circular plates. Starting motor 1 adjusts the rotation of the two clamping circular plates and the filter barrel. The steel pipe placed inside the filter barrel is fully in contact with the solution inside the processing pool during the rotation. At the same time, rod body 1 drives the rotation of the linkage gear through the transmission of the chain, so that other gears meshing with the linkage gear can realize self-rotation, thereby causing the stirring blades inside the filter barrel to rotate to stir the steel pipe inside the filter barrel and fully contact it with the pickling liquid, thereby ensuring the pickling processing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0025] Figure 2 It is a three-dimensional diagram of the internal structure of the processing pool (partially cut horizontally) of the present invention;

[0026] Figure 3 It is a three-dimensional diagram of the internal structure of the processing pool (partially cut longitudinally) of the present invention;

[0027] Figure 4 It is an exploded view of the connection structure between the filter barrel and the clamping circular plate of the present invention;

[0028] Figure 5 It is a three-dimensional diagram of the internal structure of the filter barrel (partially cut horizontally) of the present invention;

[0029] Figure 6 This is a three-dimensional diagram of the internal structure of the filter barrel of the present invention (in a longitudinal partial cutaway state);

[0030] Figure 7 It is an exploded view of the connection structure between the rod body 2 (partially cut away) and the rod body 1 of the present invention.

[0031] Description of reference numerals:

[0032] 1. Processing tank; 2. Filter barrel; 3. Motor 1; 4. Connector; 401. Rod 1; 402. Rod 2; 403. Columnar groove; 404. Limit block; 405. Limit groove; 5. Clamping circular plate; 6. Adjustment component; 601. Motor 2; 602. Threaded rod; 603. Moving plate; 604. Strip groove; 605. Annular groove; 606. Block; 607. Vertical groove; 7. Stirring component; 701. Cavity 1; 702. Notch; 703. Stirring shaft; 704. Stirring blade; 705. Big gear; 706. Small gear; 707. Linkage gear; 708. Cavity 2; 8. Cavity 3; 9. Chain; 10. Movable sleeve rod; 11. Fitting groove. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] The present invention provides Figure 1-7 The seamless steel pipe pickling device shown includes a processing pool 1, the outer wall of the processing pool 1 is fixedly connected to a motor 3, and the motor 3 is rotatably connected to a clamping circular plate 5 through a connecting piece 4, and the clamping circular plate 5 is movably connected to a filter barrel 2, and also includes:

[0035] Adjustment component 6, the outer wall of the processing pool 1 is fixedly connected with motor 2 601, and the output shaft of motor 2 601 is drivingly connected with threaded rod 602, and the outer ring of threaded rod 602 is threadedly connected with moving plate 603, and moving plate 603 moves inside the strip groove 604 reserved inside the processing pool 1, and a rotation connection is formed between moving plate 603 and clamping circular plate 5, so that moving plate 603 drives clamping circular plate 5 to move synchronously, so that clamping circular plate 5 can clamp and install filter barrel 2;

[0036] The stirring component 7, a cavity 701 is reserved inside the filter barrel 2, and the inner wall of the cavity 701 is rotatably connected to a stirring shaft 703, and the outer wall of the stirring shaft 703 is fixedly connected to a stirring blade 704, the outer wall of the stirring shaft 703 is fixedly sleeved with a large gear 705, and small gears 706 are meshed and connected on both sides of the large gear 705, and the small gear 706 is meshed and connected with a linkage gear 707 through a notch 702 connected to the cavity 1 701, the notch 702 is connected to the cavity 1 701, the linkage gear 707 is rotatably connected to the cavity 2 708 reserved inside the processing pool 1 through the gear shaft, the gear shaft inserted into the inner ring of the linkage gear 707 is rotatably connected to the inner wall of the cavity 3 8 reserved inside the processing pool 1, the rotation of the filter barrel 2 drives the rotation of the stirring blade 704, and the steel pipe inside the filter barrel 2 is stirred.

[0037] The connecting member 4 is composed of a rod body 401 and a rod body 402 movably connected to the rod body 401. The rod body 401 is slidably connected to the cylindrical groove 403 reserved inside the rod body 402, and the limit block 404 fixedly connected to the end of the rod body 401 is slidably connected to the limit groove 405 reserved inside the rod body 402, and the limit groove 405 is connected to the cylindrical groove 403, and both ends of the limit groove 405 are closed. In this way, when the clamping circular plate 5 moves toward or away from each other, the rod body 401 and the rod body 402 in the active state will still synchronously drive the rotation of the clamping circular plate 5 when driven by the motor 3.

[0038] One end of the two rod bodies 401 without the limit block 404 is rotatably connected to the output shaft of the motor 3 and the inner wall of the processing pool 1 respectively, and the rod body 2 402 movably sleeved on the outer ring of the rod body 401 is fixedly connected to the outer walls of the two clamping circular plates 5 respectively, so that the rod body 1 401 that is transmission connected to the driving shaft of the motor 3 synchronously drives the rotation of the rod body 2 402 movably sleeved on the outer ring of the rod body 1 401 when rotating, and the rotation of the rod body 2 402 drives the rotation of the clamping circular plate 5.

[0039] An annular groove 605 is reserved inside the clamping circular plate 5, and the inner wall of the annular groove 605 is in contact with the outer wall of the movable plate 603 to realize rotational connection, so that when the threaded rod 602 rotates, the two movable plates 603 move toward or away from each other, and synchronously drive the clamping circular plate 5 to move;

[0040] A vertical groove 607 is reserved inside the clamping circular plate 5, and the vertical groove 607 is matched with the block 606 fixedly connected to the end wall of the filter barrel 2 to achieve a matching connection, so that the filter barrel 2 and the clamping circular plate 5 can be installed. When the clamping circular plate 5 rotates, the filter barrel 2 rotates synchronously.

[0041] A movable sleeve rod 10 is fixedly connected between the two clamping circular plates 5, and the movable sleeve rod 10 matches with a columnar fitting groove 11 reserved inside the filter barrel 2, ensuring that the movement of the two clamping circular plates 5 is not affected.

[0042] The outer ring of the threaded rod 602 is provided with two sections of threads, and the two sections of threads have different thread directions, and the two movable plates 603 are respectively threadedly connected with the two sections of threads, and the side walls of the two movable plates 603 are in contact with the inner walls of the strip groove 604 to realize a sliding connection, so that when the threaded rod 602 rotates, the two movable plates 603 move toward or away from each other, and when the two movable plates 603 move toward or away from each other, the clamping circular plate 5 is simultaneously driven to move, so as to facilitate the disassembly and assembly of the clamping circular plate 5 and the filter barrel 2.

[0043] The two ends of the gear shaft inserted into the inner ring of the pinion gear 706 are rotatably connected to the inner wall of the notch 702 to ensure smooth rotation of the pinion gear 706.

[0044] The gear shaft inserted into the inner ring of the linkage gear 707 realizes transmission connection with the rod body 401 which is transmission connected with the output shaft of the motor 3 through the chain 9, and the chain 9 is in the cavity 3 8. When the motor 3 rotates, it drives the linkage gear 707 to rotate synchronously, which facilitates the subsequent meshing connection between the linkage gear 707 and the small gear 706 and the large gear 705.

[0045] The present invention also provides a seamless steel pipe pickling method, which uses the above-mentioned seamless steel pipe pickling device, and the specific operating steps are as follows:

[0046] Step 1: Place the steel pipe to be processed into the filter barrel 2 through the opening of the filter barrel 2;

[0047] Step 2: Start the second motor 601 to adjust the rotation of the threaded rod 602 so that the two movable plates 603 drive the clamping circular plate 5 to move toward the two ends of the filter barrel 2. At this time, the block 606 matches the vertical groove 607, thus completing the installation of the filter barrel 2 and the clamping circular plate 5;

[0048] Step three, subsequently starting the motor 3 to mobilize the two clamping circular plates 5 and the rotation of the filter barrel 2. The steel pipe placed inside the filter barrel 2 is fully in contact with the solution inside the processing tank 1 during the rotation. At the same time, the rod body 401 drives the linkage gear 707 to rotate through the transmission of the chain 9, so that the other gears meshing with the linkage gear 707 can realize self-rotation, thereby causing the stirring blade 704 inside the filter barrel 2 to rotate to stir the steel pipe inside the filter barrel 2 and fully contact it with the pickling liquid.

[0049] Working principle: When using a seamless steel pipe pickling device, first start the second motor 601 to mobilize the rotation of the threaded rod 602 connected to the output shaft of the second motor 601, and the two sets of threads symmetrically arranged on the outer ring of the threaded rod 602 realize the movement of the two movable plates 603 connected by the thread under the restriction of the strip groove 604. In this way, when the two movable plates 603 move, the clamping circular plate 5 is movably sleeved on the outer ring of the movable plate 603, so that the movable plate 603 synchronously mobilizes the movement of the two clamping circular plates 5, so that the vertical groove 607 reserved inside the clamping circular plate 5 matches the block 606 fixedly connected to the two end walls of the filter barrel 2, thus completing the filtration. The barrel 2 and the clamping circular plate 5 are installed, and then the rotation of the motor 3 is started. The synchronous rotation of the two clamping circular plates 5 drives the rotation of the filter barrel 2. The steel pipe placed inside the filter barrel 2 is fully in contact with the solution inside the processing tank 1 during the rotation. At the same time, when the motor 3 rotates, the rod body 401 connected to the output shaft of the motor 3 drives the linkage gear 707 to rotate through the transmission of the chain 9. The rotation of the linkage gear 707 drives the small gear 706 and the large gear 705 meshing therewith to realize self-rotation, thereby making the stirring blade 704 inside the filter barrel 2 rotate to stir the steel pipe inside the filter barrel 2, so that the steel pipe is fully in contact with the liquid inside the processing tank 1 for pickling processing.

[0050] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A seamless steel pipe pickling device, comprising a processing tank (1), characterized in that: The outer wall of the processing pool (1) is fixedly connected to a motor 1 (3), and the motor 1 (3) is rotatably connected to a clamping circular plate (5) through a connecting piece (4), and the clamping circular plate (5) is movably connected to the filter barrel (2), and further comprises: An adjusting component (6), wherein the outer wall of the processing pool (1) is fixedly connected to a second motor (601), and the output shaft of the second motor (601) is drivingly connected to a threaded rod (602), and the outer ring of the threaded rod (602) is threadedly connected to a movable plate (603), and the movable plate (603) moves inside a strip groove (604) reserved inside the processing pool (1), and a rotation connection is formed between the movable plate (603) and the clamping circular plate (5); A stirring assembly (7), wherein a cavity 1 (701) is reserved inside the filter barrel (2), and the inner wall of the cavity 1 (701) is rotatably connected to a stirring shaft (703), and the outer wall of the stirring shaft (703) is fixedly connected to a stirring blade (704), a large gear (705) is fixedly sleeved on the outer wall of the stirring shaft (703), and small gears (706) are meshingly connected on both sides of the large gear (705), and the small gear (706) is meshingly connected to a linkage gear (707) through a notch (702) communicating with the cavity 1 (701), the notch (702) is connected to the cavity 1 (701), the linkage gear (707) is rotatably connected to a cavity 2 (708) reserved inside the processing tank (1) through a gear shaft, and a gear shaft inserted into the inner ring of the linkage gear (707) is rotatably connected to the inner wall of a cavity 3 (8) reserved inside the processing tank (1).

2. A seamless steel pipe pickling device according to claim 1, characterized in that: The connecting member (4) is composed of a rod body 1 (401) and a rod body 2 (402) movably connected to the rod body 1 (401); the rod body 1 (401) is slidably connected to a columnar groove (403) reserved inside the rod body 2 (402); a limit block (404) fixedly connected to the end of the rod body 1 (401) is slidably connected to a limit groove (405) reserved inside the rod body 2 (402); the limit groove (405) is connected to the columnar groove (403); and both ends of the limit groove (405) are closed.

3. A seamless steel pipe pickling device according to claim 2, characterized in that: One end of the two rod bodies (401) not provided with a limit block (404) is rotatably connected to the output shaft of the motor (3) and the inner wall of the processing pool (1), respectively, and the rod body (402) movably sleeved on the outer ring of the rod body (401) is fixedly connected to the outer walls of the two clamping circular plates (5).

4. A seamless steel pipe pickling device according to claim 1, characterized in that: An annular groove (605) is reserved inside the clamping circular plate (5), and the inner wall of the annular groove (605) is in contact with the outer wall of the movable plate (603) to achieve a rotational connection; A vertical groove (607) is reserved inside the clamping circular plate (5), and the vertical groove (607) is matched with a block (606) fixedly connected to the end wall of the filter barrel (2).

5. A seamless steel pipe pickling device according to claim 1, characterized in that: A movable sleeve rod (10) is fixedly connected between the two clamping circular plates (5), and the movable sleeve rod (10) matches a columnar engaging groove (11) reserved inside the filter barrel (2).

6. A seamless steel pipe pickling device according to claim 1, characterized in that: The outer ring of the threaded rod (602) is provided with two sections of threads, and the two sections of threads have different thread directions, and the two movable plates (603) are respectively threadedly connected with the two sections of threads, and the side walls of the two movable plates (603) are in contact with the inner wall of the strip groove (604) to achieve sliding connection.

7. A seamless steel pipe pickling device according to claim 1, characterized in that: The two ends of the gear shaft inserted into the inner ring of the pinion gear (706) are rotatably connected to the inner wall of the notch (702).

8. A seamless steel pipe pickling device according to claim 1, characterized in that: The gear shaft inserted into the inner ring of the linkage gear (707) is connected to the rod body (401) through a chain (9) and is connected to the output shaft of the motor (3), and the chain (9) is located in the cavity (8).

9. A method for pickling a seamless steel pipe, using a pickling device for a seamless steel pipe as claimed in any one of claims 1 to 8, characterized in that: The specific steps are as follows: Step 1: Place the steel pipe to be processed into the filter barrel (2) through the opening of the filter barrel (2); Step 2: Start the second motor (601) to adjust the rotation of the threaded rod (602) so that the two movable plates (603) drive the clamping circular plate (5) to move toward the two ends of the filter barrel (2). At this time, the block (606) matches the vertical groove (607), thus completing the installation of the filter barrel (2) and the clamping circular plate (5); Step 3, subsequently starting the motor 1 (3) to mobilize the two clamping circular plates (5) and the filter barrel (2) to rotate, and the steel pipe placed inside the filter barrel (2) is fully in contact with the solution inside the processing tank (1) during the rotation process. At the same time, the rod body 1 (401) drives the linkage gear (707) to rotate through the transmission of the chain (9), so that other gears meshing with the linkage gear (707) can achieve self-rotation, thereby causing the stirring blade (704) inside the filter barrel (2) to rotate to stir the steel pipe inside the filter barrel (2) and fully contact it with the pickling liquid.

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