Seamless steel tube pickling device and method with anti-shaking function

Abstract

The invention discloses a seamless steel pipe pickling device and method with an anti-shaking function, and particularly relates to the technical field of seamless steel pipe machining. The seamless steel pipe pickling device comprises a cleaning pool, symmetrically-arranged fixing plates are fixedly connected to the two sides of the cleaning pool, and a timing structure is installed at the bottom of one fixing plate; a transverse plate is fixedly connected between the tops of the two fixing plates and located above the cleaning pool in the horizontal direction, a polygonal rod penetrates through the middle of the transverse plate in the vertical direction, a top plate is fixedly connected to the position, located above the transverse plate, of the top end of the polygonal rod, and a connecting block is fixedly arranged on the outer side of the bottom of the polygonal rod. And a spring sleeves the outer part of the polygonal rod and is positioned between the transverse plate and the connecting block. Long-time soaking can be avoided when the seamless steel pipe is pickled, the seamless steel pipe is pulled up after pickling is completed, the pressing plate can press the bundled seamless steel pipe, shaking of the seamless steel pipe in the lifting process is avoided, pickling is facilitated, the pressing plate is connected with the bottom of the polygonal rod through the inserting sleeve, and later disassembly and maintenance are facilitated.

Description

Technical Field

[0001] This invention relates to the field of seamless steel pipe processing technology, and more specifically, to a seamless steel pipe pickling device and method with anti-shaking function. Background Technology

[0002] Seamless steel pipe is a long strip of steel with a hollow cross-section and no seams around its perimeter. It is made from a single piece of metal through rolling or drawing, without welding or connecting seams, thus possessing high strength and good sealing performance. Seamless steel pipe is widely used in various industrial fields, including petroleum, chemical, power, and machinery manufacturing. Seamless steel pipe is divided into two types: round and irregular. Irregular pipe includes square, oval, triangular, hexagonal, seed-shaped, star-shaped, and finned pipes, among other complex shapes.

[0003] When processing seamless steel pipes, pickling is required. Currently, during the pickling process, the seamless steel pipes tend to shake during the lifting process, causing inconvenience to the operation. Therefore, a seamless steel pipe pickling device and method with anti-shaking function is proposed. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a seamless steel pipe pickling device and method with anti-shaking function.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a seamless steel pipe pickling device with anti-sway function, comprising a cleaning tank, wherein symmetrically arranged fixed plates are fixedly connected to both sides of the cleaning tank, a timing structure is installed at the bottom of one of the fixed plates, a horizontal plate is fixedly connected between the tops of the two fixed plates above the cleaning tank in the horizontal direction, a polygonal rod is passed through the middle of the horizontal plate in the vertical direction, a top plate is fixedly connected to the top of the polygonal rod above the horizontal plate, a connecting block is fixedly arranged on the outer side of the bottom of the polygonal rod, and a spring is sleeved on the outside of the polygonal rod between the horizontal plate and the connecting block, a pressure plate is arranged below the end of the polygonal rod, a plug-in sleeve for inserting the end of the polygonal rod is fixedly arranged on the top of the pressure plate, a connecting sleeve threadedly connected to the connecting block is movably connected to the top of the plug-in sleeve, and a baffle is fixedly arranged on the top of the plug-in sleeve to prevent the connecting sleeve from falling off, and two lifting structures are symmetrically arranged on both sides of the bottom of the horizontal plate.

[0006] As a further improvement to the technical solution of the present invention, the lifting structure includes an electric hoist installed at the bottom of the horizontal plate. T-shaped sliders are fixedly connected to the outer walls of both ends of the electric hoist. A steel wire rope is driven at the output end of the electric hoist. The lifting structure also includes a threaded rod fixedly connected to the bottom outer wall of the T-shaped slider below the horizontal plate. One end of the threaded rod passes through and extends to the outside of the fixed plate. Nuts are threadedly connected to both the inner and outer sides of the fixed plate on the outside of the threaded rod. A hook is connected to the bottom of the steel wire rope.

[0007] As a further improvement to the technical solution of the present invention, the interior of the horizontal plate is provided with grooves along the horizontal direction for the vertical rods of the T-shaped sliders in the two lifting structures to move.

[0008] As a further improvement to the technical solution of the present invention, the inside of the plug sleeve is provided with a polygonal groove, and the cross-sectional structure of the polygonal rod is adapted to the polygonal groove.

[0009] As a further improvement to the technical solution of the present invention, the outer surface of the connecting block is provided with an external thread, and the inner surface of the connecting sleeve is provided with an internal thread that matches the external thread structure of the connecting block. The connecting sleeve and the connecting block are connected by a thread.

[0010] As a further improvement to the technical solution of the present invention, the fixing plate has a through hole for the threaded rod to pass through, and the radius of the circumscribed circle of the nut is larger than the radius of the through hole.

[0011] As a further improvement to the technical solution of the present invention, the timing structure includes a mounting box installed on the outside of the fixed plate. The inner side wall of the mounting box is fixedly provided with two buckles that are connected through the fixed plate. The timer is installed inside the mounting box. The front end of the mounting box is slidably connected to a cover plate in the vertical direction. Both sides of the cover plate are fixedly provided with sliders that are embedded in the two inner side walls of the front end of the mounting box. The outer wall of the front end of the cover plate is fixedly provided with a protrusion plate that facilitates opening the cover plate.

[0012] As a further improvement to the technical solution of the present invention, the two inner sidewalls at the front end of the mounting box are provided with limit grooves along the vertical direction on the outer side of the two sliders.

[0013] As a further improvement to the technical solution of the present invention, a buckle groove is provided inside the fixing plate at the position where the buckle plate passes through, and the buckle plate is fastened inside the buckle groove.

[0014] The method of using a seamless steel pipe pickling device with anti-sway function includes the following steps: Step 1: Adjust the horizontal position of the threaded rod by turning the nuts according to the usage requirements, and then adjust the horizontal position of the electric hoist. After adjustment, tighten the two nuts to fit against the inner and outer sides of the fixed plate. Step 2: Pour the pickling solution into the cleaning tank, then use the hook to hang the seamless steel pipe to be cleaned, and control the operation of the electric hoist to raise and lower the hook, thereby immersing the seamless steel pipe to be cleaned into the cleaning tank. Step 3: Push the convex plate upward to slide the cover plate upward, and then start timing by operating the timer inside the mounting box; Step 4: After soaking and cleaning, start the electric hoist to lift the seamless steel pipe from the cleaning tank. The pressure plate will press and limit the steel pipe.

[0015] Compared with the prior art, the present invention, employing the above technical solution, has the following technical effects: This invention utilizes a polygonal rod, top plate, spring, and pressure plate. During pickling of seamless steel pipes, the seamless steel pipes are bound together and connected to hooks. Then, an electric hoist is activated to immerse the seamless steel pipes in the cleaning tank. The cover is opened, and a timer inside the mounting box is used to keep track of the time, preventing prolonged immersion. After pickling is complete, the pipes are pulled up, and the pressure plate presses against the bound seamless steel pipes, preventing them from swaying during the lifting process and facilitating pickling. The pressure plate is connected to the bottom of the polygonal rod via a plug-in sleeve, facilitating later disassembly and maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 In this invention Figure 1 A sectional view; Figure 3 This is a schematic diagram of the timing structure of the present invention; Figure 4 This is a schematic diagram of the connection structure between the polygonal rod and the plug sleeve of the present invention; Figure 5 This is a schematic diagram of the lifting structure of the present invention; Figure 6 For the present invention Figure 2 A magnified structural diagram of A in the middle.

[0017] Explanation of reference numerals in the attached drawings: 1. Cleaning tank; 2. Fixing plate; 3. Horizontal plate; 4. Electric hoist; 5. Steel wire rope; 6. T-slider; 7. Threaded rod; 8. Nut; 9. Hook; 10. Polygonal rod; 11. Top plate; 12. Spring; 13. Connecting block; 14. Pressure plate; 15. Insert sleeve; 16. Baffle; 17. Connecting sleeve; 18. Mounting box; 19. Buckle plate; 20. Timer; 21. Cover plate; 22. Slide plate; 23. Protruding plate. Detailed Implementation

[0018] 1. The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0019] As attached Figure 1-6 The pickling device for seamless steel pipes with anti-sway function shown includes a cleaning tank 1. Two fixed plates 2 are symmetrically connected to both sides of the cleaning tank 1. A timing structure is installed at the bottom of one of the fixed plates 2. A horizontal plate 3 is fixedly connected horizontally between the tops of the two fixed plates 2, above the cleaning tank 1. A polygonal rod 10 passes through the middle of the horizontal plate 3 vertically. A top plate 11 is fixedly connected to the top of the polygonal rod 10 above the horizontal plate 3. A connecting block 13 is fixedly installed on the outer side of the bottom of the polygonal rod 10. A spring 12 is sleeved between the horizontal plate 3 and the connecting block 13 on the outside of the polygonal rod 10. A pressure plate 14 is provided below the end of the polygonal rod 10. A plug-in sleeve 15 for inserting the end of the polygonal rod 10 is fixedly installed on the top of the pressure plate 14. A connecting sleeve 17 threadedly connected to the connecting block 13 is movably connected to the top of the plug-in sleeve 15. A baffle 16 is fixedly installed on the top of the plug-in sleeve 15 to prevent the connecting sleeve 17 from falling off. Two lifting structures are symmetrically arranged on both sides of the bottom of the horizontal plate 3.

[0020] As attached Figure 1-2 and attached Figure 5-6 As shown, the lifting structure includes an electric hoist 4 installed at the bottom of the horizontal plate 3. T-shaped sliders 6 are fixedly connected to the outer walls of both ends of the electric hoist 4. A steel wire rope 5 is driven by the output end of the electric hoist 4. The lifting structure also includes a threaded rod 7 fixedly connected to the bottom outer wall of the T-shaped slider 6 below the horizontal plate 3. One end of the threaded rod 7 passes through and extends to the outside of the fixed plate 2. Nuts 8 are threadedly connected to both the inner and outer sides of the threaded rod 7 on the fixed plate 2. A hook 9 is connected to the bottom of the steel wire rope 5. The interior of the horizontal plate 3 is provided with grooves along the horizontal direction for the vertical rods of the T-shaped sliders 6 in the two lifting structures to move. The interior of the fixed plate 2 is provided with a through hole for the threaded rod 7 to pass through. The radius of the outer circle where the nut 8 is located is larger than the radius of the through hole, which facilitates the hooking and lifting of the seamless steel pipe to be pickled during use, thereby controlling the seamless steel pipe to be immersed in the pickling solution inside the cleaning tank for pickling.

[0021] As attached Figure 4 As shown, the inside of the plug sleeve 15 is provided with a polygonal groove, and the cross-sectional structure of the polygonal rod 10 is adapted to the polygonal groove to improve stability.

[0022] The outer surface of the connecting block 13 is provided with an external thread (not shown in the figure), and the inner surface of the connecting sleeve 17 is provided with an internal thread that matches the external thread structure of the connecting block 13 (not shown in the figure). The connecting sleeve 17 and the connecting block 13 are connected by threads.

[0023] As attached Figure 1-3 As shown, the timing structure includes a mounting box 18 installed on the outside of the fixed plate 2. Two buckles 19 are fixedly installed on the inner side wall of the mounting box 18 and are connected to the fixed plate 2. A timer 20 is installed inside the mounting box 18. A cover plate 21 is slidably connected to the front end of the mounting box 18 in the vertical direction. Sliders 22 are fixedly installed on both sides of the cover plate 21 and are embedded in the two inner side walls of the front end of the mounting box 18. A protruding plate 23 is fixedly installed on the outer side of the front end of the cover plate 21 to facilitate opening the cover plate 21. Limiting grooves are opened in the vertical direction on the two inner side walls of the front end of the mounting box 18 corresponding to the two sliders 22. A buckle groove is opened inside the fixed plate 2 at the position where the buckles 19 are inserted. The buckles 19 are fastened inside the buckle groove, which is convenient for the user to operate and thus facilitates the user to control the pickling time.

[0024] The method of using a seamless steel pipe pickling device with anti-sway function includes the following steps: Step 1: According to the usage requirements, turn the nut 8 to adjust the horizontal position of the threaded rod 7, and then adjust the horizontal position of the electric hoist 4. After the adjustment is completed, tighten the two nuts 8 to fit against the inner and outer side walls of the fixing plate 2. Step 2: Pour the pickling solution into the cleaning tank 1, then use the hook 9 to hook the seamless steel pipe to be cleaned, and control the operation of the electric hoist 4 to raise and lower the hook 9, thereby immersing the seamless steel pipe to be cleaned into the cleaning tank 1. Step 3: Push the convex plate 23 upward to slide the cover plate 21 upward, and then start timing by operating the timer 20 inside the mounting box 18; Step 4: After soaking and cleaning, start the electric hoist 4 to lift the seamless steel pipe inside the cleaning tank 1, and the pressure plate 14 will press and limit the steel pipe.

[0025] In this application, the electric hoist 4 and the timer 20 are model LHB50-(3-31.5) explosion-proof electric hoist and 3Q-NZ002, respectively. Their structure and operating principle are existing technologies, so their structure and operating principle will not be described in detail here.

[0026] Working principle: This invention designs a seamless steel pipe pickling device and method with anti-sway function. The specific structure is shown in the attached instruction manual. Figure 1-6As shown, when pickling seamless steel pipes, the electric hoist 4 slides by pulling the threaded rod 7, and the position of the hook 9 is adjusted by the electric hoist 4. After adjustment, the electric hoist 4 is fixed by the nut 8. Then, pickling solvent is introduced into the cleaning tank 1, and the seamless steel pipe is tied and connected to the hook 9. Then, the electric hoist 4 is started, and the seamless steel pipe is lifted by the hook 9 to immerse it in the cleaning tank 1 for pickling. The cover plate 21 is opened, and the timer 20 inside the mounting box 18 is used to keep track of the time to avoid prolonged immersion. After pickling, the pipe is lifted. During the lifting process, the pressure plate 14 presses against the tied seamless steel pipe, and the spring 12 on the outside of the polygonal rod 10 applies a reverse force to the pressure plate 14 to prevent the seamless steel pipe from shaking during the lifting process, which facilitates pickling. The pressure plate 14 is connected to the bottom of the polygonal rod 10 through the plug sleeve 15, and is fixed by the threaded connection between the connecting sleeve 17 and the connecting block 13, which facilitates disassembly and maintenance later.

[0027] In the accompanying drawings of the embodiments disclosed in this invention, only the structures involved in the embodiments of this disclosure are shown. Other structures can be referred to with general designs. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A seamless steel pipe pickling device with anti-sway function, comprising a cleaning tank (1), characterized in that: The cleaning pool (1) is fixedly connected to two symmetrically arranged fixing plates (2) on both sides. A timing structure is installed at the bottom of one of the fixing plates (2). A horizontal plate (3) is fixedly connected between the tops of the two fixing plates (2) above the cleaning pool (1) in the horizontal direction. A polygonal rod (10) runs through the middle of the horizontal plate (3) in the vertical direction. A top plate (11) is fixedly connected to the top of the polygonal rod (10) above the horizontal plate (3). A connecting block (13) is fixedly installed on the outer side of the bottom of the polygonal rod (10). A spring (12) is sleeved between the horizontal plate (3) and the connecting block (13). A pressure plate (14) is provided below the end of the polygonal rod (10). A plug sleeve (15) for inserting the end of the polygonal rod (10) is fixedly provided on the top of the pressure plate (14). A connecting sleeve (17) that is threadedly connected to the connecting block (13) is movably connected to the top of the plug sleeve (15). A baffle (16) to prevent the connecting sleeve (17) from falling off is fixedly provided on the top of the plug sleeve (15). Two lifting structures are symmetrically provided on both sides of the horizontal plate (3) on both sides of (10).

2. The seamless steel pipe pickling device with anti-sway function according to claim 1, characterized in that: The lifting structure includes an electric hoist (4) installed at the bottom of the horizontal plate (3). T-shaped sliders (6) are fixedly connected to the outer walls of both ends of the electric hoist (4). A steel wire rope (5) is driven at the output end of the electric hoist (4). The lifting structure also includes a threaded rod (7) fixedly connected to the bottom outer wall of the T-shaped slider (6) below the horizontal plate (3). One end of the threaded rod (7) passes through and extends to the outside of the fixed plate (2). Nuts (8) are threadedly connected to both the inner and outer sides of the fixed plate (2) on the outside of the threaded rod (7). A hook (9) is connected to the bottom of the steel wire rope (5).

3. The seamless steel pipe pickling device with anti-sway function according to claim 2, characterized in that: The interior of the horizontal plate (3) is provided with grooves along the horizontal direction for the vertical rods of the T-shaped sliders (6) in the two lifting structures to move.

4. The seamless steel pipe pickling device with anti-sway function according to claim 1, characterized in that: The plug sleeve (15) has a polygonal groove inside, and the cross-sectional structure of the polygonal rod (10) is adapted to the polygonal groove.

5. A seamless steel pipe pickling device with anti-sway function according to claim 1, characterized in that: The outer surface of the connecting block (13) is provided with an external thread, and the inner surface of the connecting sleeve (17) is provided with an internal thread that matches the external thread structure of the connecting block (13). The connecting sleeve (17) and the connecting block (13) are connected by a thread.

6. A seamless steel pipe pickling device with anti-sway function according to claim 2, characterized in that: The fixing plate (2) has a through hole for the threaded rod (7) to pass through, and the radius of the circumscribed circle of the nut (8) is larger than the radius of the through hole.

7. A seamless steel pipe pickling device with anti-sway function according to claim 1, characterized in that: The timing structure includes a mounting box (18) installed on the outside of the fixed plate (2). The inner side wall of the mounting box (18) is fixedly provided with two buckles (19) that are connected through the fixed plate (2). The timer (20) is installed inside the mounting box (18). The front end of the mounting box (18) is slidably connected to a cover plate (21) in the vertical direction. Both sides of the cover plate (21) are fixedly provided with sliders (22) that are embedded in the two inner side walls of the front end of the mounting box (18). The outer wall of the front end of the cover plate (21) is fixedly provided with a protruding plate (23) that facilitates opening the cover plate (21).

8. A seamless steel pipe pickling device with anti-sway function according to claim 7, characterized in that: Limiting grooves are provided on the two inner sidewalls of the front end of the mounting box (18) corresponding to the two sliders (22) along the vertical direction.

9. A seamless steel pipe pickling device with anti-sway function according to claim 7, characterized in that: The fixing plate (2) has a buckle groove at the position where the buckle plate (19) is inserted, and the buckle plate (19) is fastened inside the buckle groove.

10. A method of using a seamless steel pipe pickling device with anti-sway function according to any one of claims 1-9, characterized in that, Specifically, the steps include the following: Step 1: According to the usage requirements, tighten the nuts (8) to adjust the horizontal position of the threaded rod (7), and then adjust the horizontal position of the electric hoist (4). After the adjustment is completed, tighten the two nuts (8) to fit against the inner and outer sides of the fixed plate (2). Step 2: Pour the pickling solution into the cleaning tank (1), then use the hook (9) to hook the seamless steel pipe to be cleaned, and control the operation of the electric hoist (4) to raise and lower the hook (9), thereby immersing the seamless steel pipe to be cleaned into the cleaning tank (1). Step 3: Push the convex plate (23) upward to make the cover plate (21) slide upward, and then start timing by operating the timer (20) inside the mounting box (18); Step 4: After soaking and cleaning, start the electric hoist (4) to lift the seamless steel pipe inside the cleaning tank (1), and the pressure plate (14) will press and limit the steel pipe.

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