Grinding device for inner wall of metal composite pipe

Abstract

The invention relates to the technical field of pipeline polishing, in particular to a metal composite pipe inner wall polishing device which comprises a bearing roller making contact with the bottom of a pipe and a fitting roller fitting the top of the pipe and further comprises a supporting frame, a driving motor is installed on the supporting frame, and a rotating shaft is fixed to the output end of the driving motor through a coupler. A butt joint seat is fixed to the outer end of the butt joint rod, the outer side of the butt joint seat is sleeved with a grinding part, and a lifting part used for lifting adjustment of the butt joint rod is installed at the outer end of the butt joint cylinder, so that the inner wall of the pipeline is ground, and meanwhile, the position of the grinding part is adjusted through an adjusting part; and the abraded area is moved, so that a new area of the polishing part is moved out to be polished, the time spent by personnel for replacing a polishing tool is saved, the polishing efficiency is improved, and high-quality polishing of the inner wall of the pipeline is also achieved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline grinding, in particular to a metal composite pipe inner wall grinding device. Background Art

[0002] Metal composite pipes are made of two or more different metal materials through a certain process method. During the production process of metal composite pipes, there may be some tiny defects, burrs or impurities on the inner wall, which are prone to accumulate corrosive media and cause corrosion reactions. Therefore, the inner wall of the pipe needs to be polished.

[0003] When grinding the inner wall of a pipe, sandpaper or a grinding wheel is usually used to frictionally grind the inner wall of the pipe. After production, some pipes have a certain length. When grinding the inner wall, the grinding path required is long and the grinding range is wide, which makes the grinding part of the grinding tool on the inner wall of the pipe prone to wear and tear. The grinding tool needs to be replaced, affecting the grinding effect and efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a metal composite pipe inner wall grinding device to solve the problem of low grinding efficiency due to wear and tear of the grinding part and the need for replacement when grinding the pipe as mentioned in the background art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a metal composite pipe inner wall grinding device, comprising a supporting roller in contact with the bottom of the pipe and a bonding roller in contact with the top of the pipe, and also comprising a support frame, a driving motor is installed on the support frame, and a rotating shaft is fixed to the output end of the driving motor through a coupling, a docking tube is fixed to the outer end of the rotating shaft, and a docking rod is slidably inserted in the docking tube, a docking seat is fixed to the outer end of the docking rod, a grinding part is sleeved on the outer side of the docking seat, and a lifting part for lifting and lowering adjustment of the docking rod is installed on the outer end of the docking tube; and a pushing component fixed to the support frame, through which the grinding part is extended into the interior of the pipe; and an adjusting component fixed to the support frame, and the adjusting component drives the grinding part to adjust its position on the docking seat.

[0006] Preferably, the grinding part includes a grinding belt and a mounting plate fixed on a rotating shaft, two connecting shafts are fixed on the mounting plate, and an I-shaped tube is rotatably sleeved on the outer sides of the two connecting shafts. The two ends of the grinding belt are respectively fixed on the outer sides of the two connecting shafts, and the grinding belt is sleeved on the outer sides of two docking seats. The grinding belt is wound by rotating the I-shaped tube.

[0007] Preferably, steering columns are fixed to both ends of the docking socket, and side panels are fixed to both sides of the docking socket.

[0008] Preferably, the lifting part includes a screw rod fixed on the outside of the docking tube, an adjusting cap is threadedly sleeved on the outside of the screw rod, and a connecting rod is rotatably installed between the adjusting cap and the docking rod.

[0009] Preferably, the adjusting component includes an electric push rod fixed on a supporting frame, an adjusting disk is fixed to the output end of the electric push rod, a through opening is opened in the adjusting disk, and the adjusting disk is sleeved on the outside of the rotating shaft through the through opening, a locking piece is fixed to the outer end of the connecting shaft, an adjusting gear is fixed on the adjusting disk, and a driven gear matching the adjusting gear is fixed to the outside of one of the locking pieces.

[0010] Preferably, a slide rod plugged into the support frame is fixed on the adjusting disk, and adjacent surfaces of the adjusting gear and the driven gear are chamfered.

[0011] Preferably, the locking member includes a prismatic rod fixed to the outer end of the connecting shaft, a locking tube is fixed to the outside of the I-shaped tube, the driven gear is fixed to the outside of one of the locking tubes, a locking gear ring is fixed to the inside of the locking tube, a locking cap is sleeved on the outside of the prismatic rod, and a tooth block meshing with the locking gear ring is fixed on the outside of the locking cap, and an extrusion spring that resists the locking cap is sleeved on the outside of the prismatic rod.

[0012] Preferably, a chamfer is provided on the inner side of the locking gear ring.

[0013] Preferably, the pushing assembly includes a plurality of pushing rods and a plurality of connecting tubes, wherein the plurality of pushing rods and the connecting tubes are threadedly connected to each other, wherein one of the connecting tubes is fixed to the outer side of the support frame, and a support member that abuts against the inner wall of the pipeline is installed on the outer side of the connecting tube.

[0014] Preferably, the support member includes a support rod rotatably mounted on the outside of a connecting tube, the outer side of the connecting tube is threaded with a rotating cap, the outer side of the rotating cap is rotatably mounted with an adjusting rod rotatably docked with the support rod, and the outer end of the support rod is rotatably mounted with a roller that fits the inner wall of the pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention utilizes a designed grinding part to be sleeved on the outside of two docking seats, and cooperates with a driving motor to drive the rotating shaft to rotate, thereby realizing grinding of the inner wall of the pipeline. At the same time, the position of the grinding part is adjusted by an adjusting component to realize the movement of the worn area, so as to move a new area of ​​the grinding part out for grinding, thereby saving the time spent by personnel to replace the grinding tool, improving the grinding efficiency, and avoiding the continued grinding of the worn area, thereby realizing high-quality grinding of the inner wall of the pipeline;

[0017] The pushing assembly designed in the present invention can meet the requirement of pushing the grinding part to the deep part of the pipeline, and the pushing assembly can be increased in length by assembly to meet the requirement of grinding the inner wall of a longer pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention when grinding a pipeline;

[0019] Figure 2 This is a schematic diagram of the state when the grinding part of the present invention is inside the pipeline;

[0020] Figure 3 This is a schematic diagram of the connection between the grinding part and the pushing component of the present invention;

[0021] Figure 4 It is a partial cutaway rear side view of the adjusting component of the present invention;

[0022] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0023] Figure 6 This is a front view of the push assembly of the present invention docking with the pipeline;

[0024] Figure 7 It is a schematic diagram of the structure of the locking member of the present invention after partial cross-section;

[0025] Figure 8 for Figure 7 Enlarged view of point B in the middle;

[0026] Fig. 9 This is a front view of the grinding belt and the docking seat of the present invention being fitted together;

[0027] Fig.10 It is a schematic diagram of the lifting part structure of the present invention.

[0028] In the figure: 1. Support roller; 2. Laminating roller; 3. Support frame; 4. Driving motor; 5. Rotating shaft; 6. Docking tube; 7. Docking rod; 8. Docking seat; 9. Grinding part; 10. Lifting part; 11. Pushing assembly; 12. Adjusting part; 13. Grinding belt; 14. Mounting plate; 15. Connecting shaft; 16. I-shaped tube; 17. Steering column; 18. Side plate; 19. Screw rod; 20. Adjusting cap; 21. Connecting rod; 22. Electric push rod; 23. Adjusting plate; 24. Locking piece; 25. Adjusting gear; 26. Driven gear; 27. Sliding rod; 28. Prismatic rod; 29. ​​Locking tube; 30. Locking gear ring; 31. Locking cap; 32. Tooth block; 33. Extrusion spring; 34. Push rod; 35. Connecting tube; 36. Support piece; 37. Support rod; 38. Rotating cap; 39. Adjusting rod; 40. Roller. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figure 1 - Figure 5 The inner wall grinding device of the metal composite pipe shown in the figure includes a supporting roller 1 in contact with the bottom of the pipe and a bonding roller 2 that is bonded to the top of the pipe, and also includes a support frame 3, on which a driving motor 4 is installed, and a rotating shaft 5 is fixed to the output end of the driving motor 4 through a coupling, and a docking tube 6 is fixed to the outer end of the rotating shaft 5, and a docking rod 7 is slidably inserted in the docking tube 6, and a docking seat 8 is fixed to the outer end of the docking rod 7, and a grinding part 9 is sleeved on the outer side of the docking seat 8, and a lifting part 10 for lifting and lowering adjustment of the docking rod 7 is installed at the outer end of the docking tube 6; and a pushing component 11 fixed to the support frame 3, through which the grinding part 9 is extended into the interior of the pipe; and an adjusting component 12 fixed to the support frame 3, and the adjusting component 12 drives the grinding part 9 to adjust the position on the docking seat 8;

[0031] In this solution, the support frame 3 is sent into the pipeline by the pushing component 11, and the driving motor 4 is used to generate power to drive the rotating shaft 5 to rotate, so that the grinding part 9 grinds the inner wall of the pipeline. During the grinding process, the position of the grinding part 9 is replaced by the adjusting component 12, so that the wear area of ​​the grinding part 9 can be replaced, thereby improving the grinding quality, avoiding the occurrence of incomplete grinding caused by grinding the wear area, and reducing the time spent on replacing the grinding tool, thereby improving the grinding efficiency;

[0032] It should also be noted that the pipe in this solution is installed between two supporting rollers 1 and a bonding roller 2. The rotation of the supporting roller 1 can drive the pipe to rotate, wherein the grinding part 9 rotates in the opposite direction to the pipe, so that the grinding part 9 can better grind the inner wall of the pipe.

[0033] For further information, see Figure 5 - Fig.10 The grinding part 9 includes a grinding belt 13 and a mounting plate 14 fixed on the rotating shaft 5. Two connecting shafts 15 are fixed on the mounting plate 14. The outer sides of the two connecting shafts 15 are rotatably sleeved with an I-shaped tube 16. The two ends of the grinding belt 13 are respectively fixed to the outer sides of the two connecting shafts 15. The grinding belt 13 is sleeved on the outer sides of the two docking seats 8. The I-shaped tube 16 rotates to realize the winding of the grinding belt 13.

[0034] It should be noted that the outer side of the grinding belt 13 is made of frosted material. When the driving motor 4 drives the grinding part 9 to rotate, the outer side of the grinding belt 13 rubs against the inner wall of the pipe, thereby achieving a grinding effect. At the same time, by rotating the two I-shaped tubes 16, one of the I-shaped tubes 16 is rotated and wound, and the other I-shaped tube 16 begins to relax, so that the friction area between the grinding belt 13 and the inner wall of the pipe can be replaced, thereby avoiding the friction between the frosted wear area and the inner wall of the pipe, thereby improving the grinding quality.

[0035] It should also be noted that in order to make the movement of the grinding belt 13 smoother, steering columns 17 are fixed at both ends of the docking seat 8. At the same time, in order to prevent the grinding belt 13 from deviating from the docking seat 8 when moving, side panels 18 are fixed on both sides of the docking seat 8. The side panels 18 are used to shield the grinding belt 13 so that the grinding belt 13 can be separated from the docking seat 8 during grinding.

[0036] For further information, see Figure 3 as well as Fig.10 The lifting part 10 includes a screw rod 19 fixed to the outside of the docking tube 6, an adjusting cap 20 is threadedly sleeved on the outside of the screw rod 19, and a connecting rod 21 is rotatably installed between the adjusting cap 20 and the docking rod 7;

[0037] In this solution, when grinding pipes with different inner diameters, the personnel first rotate the adjusting cap 20 to move the adjusting cap 20 on the screw rod 19, thereby driving the angle of the connecting rod 21 to change, thereby driving the docking rod 7 to rise and fall in the docking tube 6, so that the position of the docking seat 8 is adjusted, and the distance between the two docking seats 8 changes, thereby enabling the grinding part 9 to grind the inner walls of pipes with different inner diameters.

[0038] For further information, see Figure 3 as well as Figure 5 The adjusting component 12 includes an electric push rod 22 fixed on the support frame 3, an adjusting disk 23 is fixed to the output end of the electric push rod 22, a through opening is opened in the adjusting disk 23, the adjusting disk 23 is sleeved on the outside of the rotating shaft 5 through the through opening, a locking member 24 is fixed to the outer end of the connecting shaft 15, an adjusting gear 25 is fixed on the adjusting disk 23, and a driven gear 26 matching the adjusting gear 25 is fixed to the outer side of one of the locking members 24;

[0039] Among them, the locking member 24 includes a prismatic rod 28 fixed to the outer end of the connecting shaft 15, a locking tube 29 is fixed to the outside of the I-shaped tube 16, the driven gear 26 is fixed to the outside of one of the locking tubes 29, a locking toothed ring 30 is fixed to the inside of the locking tube 29, a locking cap 31 is sleeved on the outside of the prismatic rod 28, a tooth block 32 meshing with the locking toothed ring 30 is fixed on the outside of the locking cap 31, and an extrusion spring 33 abutting against the locking cap 31 is sleeved on the outside of the prismatic rod 28, wherein, in order to enable the tooth block 32 to stably dock and mesh with the locking toothed ring 30, a chamfer is opened on the inner side of the locking toothed ring 30, and the width of the locking toothed ring 30 is smaller than the spacing between the adjusting gear 25 and the driven gear 26.

[0040] In this solution, the principle of position adjustment of the grinding belt 13 is as follows:

[0041] First, the electric push rod 22 pushes the adjusting disk 23 to move outward, the adjusting disk 23 abuts against the locking cap 31, and squeezes the locking cap 31 to move toward the locking tube 29, so that the tooth block 32 disengages from the locking tooth ring 30, and then as the adjusting disk 23 continues to move, the adjusting gear 25 is meshed with the driven gear 26, and then driven by the driving motor 4, the rotating shaft 5 is driven to rotate, so that the mounting plate 14 and the connecting shaft 15 rotate synchronously, and the driven gear 26 on the outside of the I-shaped tube 16 is meshed with the adjusting gear 25, and the driven gear 26 rotates along the outside of the adjusting gear 25, while the adjusting gear 25 does not move, which will drive the adjusting gear 25 to rotate accordingly, so that the I-shaped tube 16 starts to wind the grinding belt 13, and the other I-shaped tube 16 loosens the grinding belt 13, so that the position of the grinding belt 13 outside the docking seat 8 changes, so that the worn area is replaced with a new grinding belt 13, thereby improving the grinding quality and the efficiency of replacing the worn grinding tool;

[0042] After the adjustment is completed, the electric push rod 22 retracts, causing the adjustment disk 23 to retract. Under the action of the extrusion spring 33, the locking cap 31 and the tooth block 32 move outward, and the tooth block 32 is then engaged with the locking tooth ring 30, thereby realizing the locking operation of the I-shaped tube 16, keeping the grinding belt 13 in a stable winding state, so that the grinding belt 13 will not become loose during grinding.

[0043] In this solution, in order to enable the adjusting disk 23 to be stably adjusted by the electric push rod 22, a sliding rod 27 connected to the support frame 3 is fixed on the adjusting disk 23, so that the adjusting gear 25 and the driven gear 26 can be stably connected, and chamfers are provided on the adjacent surfaces of the adjusting gear 25 and the driven gear 26.

[0044] Example 2: Please refer to Figure 1 - Figure 4This embodiment further explains the first embodiment, and the difference lies in that an embodiment of the pushing component 11 is disclosed to meet the grinding of the inner wall of the pipes of different lengths.

[0045] Specifically, the push assembly 11 includes a plurality of push rods 34 and a plurality of connecting tubes 35, wherein the plurality of push rods 34 and the connecting tubes 35 are threadedly connected to each other, wherein one of the connecting tubes 35 is fixed to the outside of the support frame 3, and a support member 36 that abuts against the inner wall of the pipeline is installed on the outside of the connecting tube 35;

[0046] Among them, the support member 36 includes a support rod 37 rotatably installed on the outside of the connecting tube 35, the outer side of the connecting tube 35 is threadedly sleeved with a rotating cap 38, the outer side of the rotating cap 38 is rotatably installed with an adjusting rod 39 rotatably docked with the support rod 37, and the outer end of the support rod 37 is rotatably installed with a roller 40 that fits the inner wall of the pipe.

[0047] In this solution, when grinding the inner wall of a longer pipe, it is necessary to move the grinding equipment to a deeper part of the pipe. Personnel can meet the requirements for grinding length by rotating and installing multiple connecting tubes 35 and pushing rods 34 in sequence. At the same time, when pushing into the pipe, the support rod 37 and the roller 40 at the outer end are in contact with the inner wall of the pipe, so that the pushing rod 34 and the support frame 3 can maintain stable entry into the pipe for operation.

[0048] 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.

[0049] 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. The inner wall grinding device of the metal composite pipe includes: A supporting roller (1) in contact with the bottom of the pipe and a laminating roller (2) in contact with the top of the pipe; It is characterized by further comprising: A support frame (3), a driving motor (4) is mounted on the support frame (3), and a rotating shaft (5) is fixed to the output end of the driving motor (4) via a coupling, a docking sleeve (6) is fixed to the outer end of the rotating shaft (5), a docking rod (7) is slidably inserted in the docking sleeve (6), a docking seat (8) is fixed to the outer end of the docking rod (7), a grinding portion (9) is sleeved on the outer side of the docking seat (8), and a lifting portion (10) for lifting and lowering the docking rod (7) is mounted on the outer end of the docking sleeve (6); and, a pushing assembly (11) fixed to the support frame (3), through which the grinding portion (9) is extended into the interior of the pipeline; and An adjusting component (12) is fixed on the support frame (3), and the adjusting component (12) drives the grinding part (9) to adjust its position on the docking seat (8).

2. The inner wall grinding device of the metal composite pipe according to claim 1, characterized in that: The grinding part (9) comprises a grinding belt (13) and a mounting plate (14) fixed on the rotating shaft (5); two connecting shafts (15) are fixed on the mounting plate (14); the outer sides of the two connecting shafts (15) are rotatably sleeved with an I-shaped tube (16); the two ends of the grinding belt (13) are respectively fixed on the outer sides of the two connecting shafts (15); the grinding belt (13) is sleeved on the outer sides of the two docking seats (8); and the grinding belt (13) is wound around by the rotation of the I-shaped tube (16).

3. The inner wall grinding device of the metal composite pipe according to claim 1, characterized in that: Steering columns (17) are fixed to both ends of the docking seat (8), and side plates (18) are fixed to both sides of the docking seat (8).

4. The inner wall grinding device of the metal composite pipe according to claim 1, characterized in that: The lifting part (10) comprises a screw rod (19) fixed on the outside of the docking tube (6), an adjusting cap (20) is threadedly sleeved on the outside of the screw rod (19), and a connecting rod (21) is rotatably mounted between the adjusting cap (20) and the docking rod (7).

5. The inner wall grinding device of the metal composite pipe according to claim 2, characterized in that: The adjusting component (12) comprises an electric push rod (22) fixed on a support frame (3); an adjusting disk (23) is fixed to the output end of the electric push rod (22); a through hole is provided in the adjusting disk (23), and the adjusting disk (23) is sleeved on the outside of the rotating shaft (5) through the through hole; a locking piece (24) is fixed to the outer end of the connecting shaft (15); an adjusting gear (25) is fixed to the adjusting disk (23), and a driven gear (26) matched with the adjusting gear (25) is fixed to the outer side of one of the locking pieces (24).

6. The inner wall grinding device of the metal composite pipe according to claim 5, characterized in that: A slide rod (27) plugged into the support frame (3) is fixed on the adjusting disk (23), and adjacent surfaces of the adjusting gear (25) and the driven gear (26) are chamfered.

7. The inner wall grinding device of the metal composite pipe according to claim 5, characterized in that: The locking member (24) comprises a prismatic rod (28) fixed to the outer end of the connecting shaft (15); a locking tube (29) is fixed to the outer side of the I-shaped tube (16); the driven gear (26) is fixed to the outer side of one of the locking tubes (29); a locking toothed ring (30) is fixed to the inner side of the locking tube (29); a locking cap (31) is sleeved on the outer side of the prismatic rod (28); a tooth block (32) meshing with the locking toothed ring (30) is fixed on the outer side of the locking cap (31); and a compression spring (33) abutting against the locking cap (31) is sleeved on the outer side of the prismatic rod (28).

8. The inner wall grinding device of the metal composite pipe according to claim 7, characterized in that: The inner side of the locking toothed ring (30) is provided with a chamfer.

9. The inner wall grinding device of the metal composite pipe according to claim 1, characterized in that: The pushing assembly (11) comprises a plurality of pushing rods (34) and a plurality of connecting tubes (35), wherein the plurality of pushing rods (34) and the connecting tubes (35) are threadedly connected to each other, wherein one of the connecting tubes (35) is fixed to the outside of the support frame (3), and a supporting member (36) abutting against the inner wall of the pipeline is installed on the outside of the connecting tube (35).

10. The inner wall grinding device of the metal composite pipe according to claim 9, characterized in that: The support member (36) comprises a support rod (37) rotatably mounted on the outside of a connecting tube (35); a rotating cap (38) is threadedly sleeved on the outside of the connecting tube (35); an adjusting rod (39) rotatably mounted on the outside of the rotating cap (38) and rotatably docked with the support rod (37); and a roller (40) rotatably mounted on the outer end of the support rod (37) and in contact with the inner wall of the pipe.

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