Shot blasting machine for inner wall of steel pipe

Abstract

The utility model relates to the technical field of steel pipe inner wall cleaning, and discloses a steel pipe inner wall shot blasting machine which comprises a shot blasting machine body, a steel pipe supporting assembly is arranged on one side of the shot blasting machine body, a steel pipe is located on the steel pipe supporting assembly, the steel pipe supporting assembly comprises a movable trolley body, and the upper end of the movable trolley body is connected with a shell. The first motor drives the worm to be meshed with the worm gear, so that the two-way lead screw drives the moving blocks on the two sides to move in the opposite directions, the distance between the supporting wheels is adjusted, and the supporting wheels are arranged on the two sides of the shell in the opposite directions, so that the working efficiency is improved, and the working efficiency is improved. Therefore, steel pipes with different pipe diameters can be supported; a second motor drives a gear to be engaged with an upper toothed plate and a lower toothed plate, so that the upper toothed plate and the lower toothed plate drive a connecting rod to move, and then the connecting rod drives a positioning wheel to abut against a steel pipe, so that the steel pipe is kept stable in the shot blasting rotation process.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel pipe inner wall cleaning, and specifically relates to a shot blasting cleaning machine for the inner wall of steel pipes. Background Technique

[0002] During the production process of steel pipes, some impurities such as oxides and rust layers often remain on the inner wall of the steel pipes. The existence of these impurities will affect the quality and service effect of the steel pipes.

[0003] In order to clean these impurities, shot blasting cleaning machines for the inner wall of steel pipes are usually used in industrial production. They can achieve thorough and efficient cleaning, are environmentally friendly, and reduce air pollution. However, when the self-rotating wheels on the mobile trolley of the traditional shot blasting cleaning machine for the inner wall of steel pipes support the steel pipes, the distance cannot be adjusted according to different steel pipe diameters, so that steel pipes with different diameters cannot achieve the best self-rotating effect. Content of the Utility Model

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a shot blasting cleaning machine for the inner wall of steel pipes, which effectively solves the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical solution: A shot blasting cleaning machine for the inner wall of steel pipes, including a shot blasting machine body. A steel pipe support assembly is provided on one side of the shot blasting machine body, and the steel pipe is located on the steel pipe support assembly;

[0006] The steel pipe support assembly includes a mobile trolley main body. A shell is connected to the upper end of the mobile trolley main body. A partition is provided inside the shell, and the partition divides the shell into an upper chamber and a lower chamber. Support wheel frames are symmetrically provided on both sides of the upper end of the shell. A support wheel is rotatably connected to the upper end of the support wheel frame. A bidirectional lead screw is rotatably connected inside the upper chamber. Moving blocks are threadedly sleeved on both outer sides of the bidirectional lead screw. The upper ends of the two moving blocks penetrate through the shell and are respectively connected to the lower ends of the two support wheel frames. Moving grooves are opened at the positions corresponding to the penetrations of the moving blocks on the upper end of the shell. The lower end of the upper chamber is connected with a limiting groove, and the lower ends of the two moving blocks are both slidably connected with the limiting groove. A worm gear is fixedly sleeved in the middle of the bidirectional lead screw, and a worm is meshed with the lower end of the worm gear. One end of the worm is connected with a first motor, and the first motor is installed on the inner wall of the upper chamber.

[0007] Preferably, screws are connected to both outer sides of the shell. Brackets are detachably connected to the outer sides of the two screws through nuts. Fixing holes are evenly opened on the side walls of the brackets. L-shaped plates are connected to the upper ends of both sides of the brackets. A cross bar is connected through the upper part of the L-shaped plate. A positioning wheel is connected to one end of the cross bar. A U-shaped frame is connected to the other end of the cross bar. A spring is provided between the U-shaped frame and the L-shaped plate, and the spring is sleeved on the outer side of the cross bar.

[0008] Preferably, a notch is formed on one side of the L-shaped plate. A connecting rod is rotatably connected inside the notch through a lower movable pin. The upper part of the connecting rod is rotatably connected to the inner side of the U-shaped frame through an upper movable pin.

[0009] Preferably, the upper and lower walls of the lower chamber inside the housing are both connected with sliding grooves. An upper toothed plate and a lower toothed plate are respectively slidably connected inside the upper and lower two sliding grooves. The lower toothed plate is L-shaped. One ends of the upper toothed plate and the lower toothed plate both extend to the outside of the housing. The upper toothed plate and the lower toothed plate are both rotatably connected to the lower parts of the corresponding connecting rods on both sides through connecting pins. A gear is meshingly connected between the upper toothed plate and the lower toothed plate. One end of the gear is connected with a second motor, and the second motor is installed on the inner wall of the lower chamber.

[0010] Preferably, a first connection hole for connecting the lower movable pin is evenly formed inside the notch, and a second connection hole is evenly formed outside the connecting rod.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] (1) In the present utility model, the first motor drives the worm to mesh with the worm wheel, so that the bidirectional lead screw drives the moving blocks on both sides to move towards each other, thereby adjusting the distance between the supporting wheels, and thus being able to support steel pipes with different pipe diameters.

[0013] (2) In this new type, the second motor drives the gear to mesh with the upper toothed plate and the lower toothed plate, so that the upper toothed plate and the lower toothed plate drive the connecting rod to move, and then the connecting rod drives the positioning wheel to hold the steel pipe, so that the steel pipe remains stable during the shot blasting rotation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model.

[0015] In the drawings:

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a schematic structural diagram of the steel pipe support assembly of the present utility model;

[0018] Figure 3 is the present utility model Figure 2 is an enlarged schematic structural diagram of A;

[0019] In the figure: 1. Shot blasting machine body; 2. Steel pipe support assembly; 3. Mobile trolley body; 4. Shell; 5. Partition board; 6. Support wheel frame; 7. Support wheel; 8. Bidirectional lead screw; 9. Moving block; 10. Moving groove; 11. Limiting groove; 12. Worm gear; 13. Worm; 14. First motor; 15. Screw; 16. Nut; 17. Bracket; 18. Fixed hole; 19. L-shaped plate; 20. Cross bar; 21. Positioning wheel; 22. U-shaped frame; 23. Spring; 24. Notch; 25. Lower movable pin; 26. Connecting rod; 27. Upper movable pin; 28. Sliding groove; 29. Upper toothed plate; 30. Lower toothed plate; 31. Connecting pin; 32. Gear; 33. Second motor; 34. First connecting hole; 35. Second connecting hole. Detailed implementation mode

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all 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.

[0021] Embodiment 1 is given by Figures 1-3 The present invention includes a shot blasting machine body 1, and a steel pipe support assembly 2 is arranged on one side of the shot blasting machine body 1, and the steel pipe is located on the steel pipe support assembly 2;

[0022] The steel pipe support assembly 2 includes a mobile trolley body 3, the upper end of the mobile trolley body 3 is connected with a shell 4, a partition board 5 is arranged inside the shell 4, the partition board 5 divides the shell 4 into an upper chamber and a lower chamber, both sides of the upper end of the shell 4 are symmetrically provided with support wheel frames 6, the upper ends of the support wheel frames 6 are rotatably connected with support wheels 7, a bidirectional lead screw 8 is rotatably connected inside the upper chamber, both outer sides of the bidirectional lead screw 8 are threadedly sleeved with moving blocks 9, the upper ends of the two moving blocks 9 penetrate through the shell 4 and are respectively connected with the lower ends of the two support wheel frames 6, moving grooves 10 are opened at the positions corresponding to the penetration of the moving blocks 9 on the upper end of the shell 4, the lower end of the upper chamber is connected with a limiting groove 11, the lower ends of the two moving blocks 9 are both slidably connected with the limiting groove 11, a worm gear 12 is fixedly sleeved in the middle of the bidirectional lead screw 8, a worm 13 is meshed and connected with the lower end of the worm gear 12, and one end of the worm 13 is connected with a first motor 14, and the first motor 14 is installed on the inner wall of the upper chamber;

[0023] On both outer sides of the housing 4, screw rods 15 are connected. On the outer sides of the screw rods 15 on both sides, brackets 17 are detachably connected through nuts 16. Fixing holes 18 are evenly formed in the side walls of the brackets 17. L-shaped plates 19 are connected to the upper ends of the brackets 17 on both sides. A cross bar 20 is connected through the upper part of the L-shaped plate 19. A positioning wheel 21 is connected to one end of the cross bar 20. A U-shaped frame 22 is connected to the other end of the cross bar 20. A spring 23 is provided between the U-shaped frame 22 and the L-shaped plate 19, and the spring 23 is sleeved outside the cross bar 20;

[0024] A notch 24 is formed on one side of the L-shaped plate 19. A connecting rod 26 is rotatably connected inside the notch 24 through a lower movable pin 25. The upper part of the connecting rod 26 is rotatably connected to the inner side of the U-shaped frame 22 through an upper movable pin 27;

[0025] On the upper and lower walls of the lower chamber inside the housing 4, sliding grooves 28 are connected. An upper toothed plate 29 and a lower toothed plate 30 are respectively slidably connected inside the upper and lower two sliding grooves 28. The lower toothed plate 30 is L-shaped. One ends of the upper toothed plate 29 and the lower toothed plate 30 extend outside the housing 4. The upper toothed plate 29 and the lower toothed plate 30 are respectively rotatably connected to the lower parts of the corresponding connecting rods 26 on both sides through connecting pins 31. A gear 32 is meshed between the upper toothed plate 29 and the lower toothed plate 30. One end of the gear 32 is connected to a second motor 33, and the second motor 33 is installed on the inner wall of the lower chamber;

[0026] First connection holes 34 for connecting the lower movable pin 25 are evenly formed inside the notch 24. Second connection holes 35 are evenly formed outside the connecting rod 26;

[0027] In this device, the first connection holes 34 and the second connection holes 35 can be assembled at different positions according to the lower movable pin 25. When the diameter of the steel pipe is small, first remove the upper movable pin 27 and the lower movable pin 25, then loosen the nut 16, move the bracket 17 downward to an appropriate position and tighten it, and then install the upper movable pin 27 and the lower movable pin 25 at the corresponding hole positions, so that the device can adjust the position of the positioning wheel 21 according to the change of different pipe diameters, so as to position steel pipes with different diameters.

[0028] Working principle: When in use, adjust the distance between the supporting wheels 7 on both sides according to the diameter of the steel pipe. Drive the worm 13 to mesh with the worm wheel 12 through the first motor 14. Then, the worm wheel 12 drives the bidirectional lead screw 8 to rotate. As the bidirectional lead screw 8 rotates, the moving blocks 9 on both outer sides of it move towards each other, and then the moving blocks 9 on both sides drive the supporting wheels 7 on both sides to approach or move away from each other, so as to achieve the purpose of adjusting the distance and adjust the support according to the size of the pipe diameter;

[0029] On the other hand, after the pipe diameter support is adjusted, the second motor 33 can be driven to rotate the gear 32. When the gear 32 rotates, it meshes with the upper tooth plate 29 and the lower tooth plate 30, so that the upper tooth plate 29 and the lower tooth plate 30 move away from the outside of the housing 4 or contract toward the inside of the housing 4 respectively;

[0030] When the upper tooth plate 29 and the lower tooth plate 30 move away from the outside of the housing 4, driven by the connecting rod 26, the connecting rod 26 rotates around the lower movable pin 25, and the upper part of the connecting rod 26 pushes the U-shaped frame 22, so that the cross bar 20 drives the positioning wheel 21 to approach the steel pipe, and the steel pipe is abutted. At this time, the spring 23 is in a compressed state. Under the abutment of the positioning wheel 21 and the support of the support wheel 7, the steel pipe is kept stable during the shot blasting rotation process;

[0031] On the contrary, when the upper tooth plate 29 and the lower tooth plate 30 contract toward the inside of the housing 4, driven by the connecting rod 26, the positioning wheel 21 is separated from the steel pipe, and the abutting extrusion force is released.

Claims

1. A shot blasting machine for the inner wall of a steel pipe, comprising a shot blasting machine body (1), characterized in that: A steel pipe support assembly (2) is provided on one side of the shot blasting machine body (1), and the steel pipe is located on the steel pipe support assembly (2); The steel pipe support assembly (2) comprises a moving trolley body (3), the upper end of the moving trolley body (3) is connected to a shell (4), a partition (5) is arranged inside the shell (4), and the partition (5) divides the shell (4) into an upper chamber and a lower chamber, and support wheel frames (6) are symmetrically arranged on both sides of the upper end of the shell (4), and the upper end of the support wheel frame (6) is rotatably connected to a support wheel (7), and a bidirectional screw rod (8) is rotatably connected inside the upper chamber, and both sides of the outer side of the bidirectional screw rod (8) are threadedly sleeved with moving blocks (9), and the upper and lower ends of the two moving blocks (9) are symmetrically arranged with support wheel frames (6). The ends of the housing (4) pass through the housing (4) and are respectively connected to the lower ends of the two supporting wheel frames (6); a moving groove (10) is provided at the upper end of the housing (4) corresponding to the position where the moving block (9) passes through; the lower end of the upper chamber is connected to a limiting groove (11); the lower ends of the two moving blocks (9) are both slidably connected to the limiting groove (11); a worm wheel (12) is fixedly sleeved in the middle of the bidirectional lead screw (8); a worm (13) is meshingly connected at the lower end of the worm wheel (12); one end of the worm (13) is connected to a first motor (14); and the first motor (14) is installed on the inner wall of the upper chamber.

2. The shot blasting machine for the inner wall of a steel pipe according to claim 1, characterized in that: The outer sides of the shell (4) are connected with screw rods (15), the outer sides of the screw rods (15) on both sides are detachably connected with brackets (17) through nuts (16), the side walls of the brackets (17) are evenly provided with fixing holes (18), the upper ends of the brackets (17) on both sides are connected with L-shaped plates (19), the upper part of the L-shaped plate (19) is penetrated by a cross bar (20), one end of the cross bar (20) is connected with a positioning wheel (21), the other end of the cross bar (20) is connected with a U-shaped frame (22), a spring (23) is provided between the U-shaped frame (22) and the L-shaped plate (19), and the spring (23) is sleeved on the outer side of the cross bar (20).

3. The shot blasting machine for the inner wall of a steel pipe according to claim 2, characterized in that: A notch (24) is provided on one side of the L-shaped plate (19), and a connecting rod (26) is rotatably connected inside the notch (24) via a lower movable pin (25), and the upper part of the connecting rod (26) is rotatably connected to the inner side of the U-shaped frame (22) via an upper movable pin (27).

4. The shot blasting machine for the inner wall of a steel pipe according to claim 2, characterized in that: The upper and lower walls of the lower chamber inside the shell (4) are connected with a slide groove (28), and the upper and lower slide grooves (28) are respectively slidably connected with an upper tooth plate (29) and a lower tooth plate (30), and the lower tooth plate (30) is L-shaped, and one end of the upper tooth plate (29) and the lower tooth plate (30) extend to the outside of the shell (4), and the upper tooth plate (29) and the lower tooth plate (30) are rotatably connected to the lower part of the corresponding connecting rod (26) on both sides through a connecting pin (31), and a gear (32) is meshed and connected between the upper tooth plate (29) and the lower tooth plate (30), and one end of the gear (32) is connected to a second motor (33), and the second motor (33) is installed on the inner wall of the lower chamber.

5. The shot blasting machine for the inner wall of a steel pipe according to claim 3, characterized in that: The notch (24) is evenly provided with first connection holes (34) for connecting with the lower movable pin (25), and the connecting rod (26) is evenly provided with second connection holes (35) outside.

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