Steel pipe inner wall polishing device

Abstract

The utility model discloses a steel pipe inner wall polishing device which comprises a first supporting piece, a sliding base is installed at one end of the first supporting piece, a first electric push rod is installed in an inner cavity of the sliding base, the output end of the first electric push rod is connected with a first sliding block, the first sliding block can slide along the inner cavity of the sliding base, and a limiting rod is installed on one side of the top end of the first sliding block. A limiting seat is installed at the other end of the limiting rod, an elastic piece is installed in an inner cavity of the limiting seat, one side of the elastic piece is connected with a polishing piece through a bolt, and the polishing piece can extend to the outer portion of the limiting seat to make contact with the inner wall of the steel pipe. And the limiting rod and the limiting seat can be driven to adjust the height, so that the grinding piece can be matched according to steel pipes of different thicknesses, and after the grinding piece makes contact with the inner wall of the steel pipe, the elastic piece can be used for continuously pushing the grinding piece to make contact with the inner wall of the steel pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding devices, in particular to a steel pipe inner wall grinding device. Background Art

[0002] The steel pipe inner wall grinding device is a kind of equipment specially used for grinding, rust removal, polishing and other treatments on the inner surface of steel pipes. This device is widely used in petroleum, chemical, metallurgy, construction and other industries, especially in the process of steel pipe manufacturing, processing and maintenance. It is of great significance to improve the smoothness of the inner wall of steel pipes, remove rust and burrs, and enhance the corrosion resistance and service life of steel pipes.

[0003] During grinding, the grinding piece is generally kept at a point where it can contact the inner wall of the steel pipe, and then it will not move. However, the grinding piece will wear during grinding. As more steel pipes are ground, for steel pipes of the same size, the grinding piece will easily lose its close contact with the inner wall of the steel pipe and needs to be calibrated before it can be used again, which will affect the grinding efficiency. For this reason, we propose a steel pipe inner wall grinding device. Utility Model Content

[0004] The purpose of the utility model is to provide a steel pipe inner wall grinding device to solve the problems raised by the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steel pipe inner wall grinding device, comprising a first support member, a sliding seat is installed at one end of the first support member, a first electric push rod is installed in the inner cavity of the sliding seat, the output end of the first electric push rod is connected to the first slider, the first slider can slide along the inner cavity of the sliding seat, a limit rod is installed on one side of the top of the first slider, a limit seat is installed on the other end of the limit rod, an elastic member is installed in the inner cavity of the limit seat, a grinding member is connected to one side of the elastic member by bolts, and the grinding member can extend to the outside of the limit seat to contact the inner wall of the steel pipe.

[0006] Preferably, the elastic part includes a spring and a partition, two groups of the springs are installed in the inner cavity of the limit seat, the springs are connected to the partition, the partition can be penetrated by the connecting part of the polishing part, the connecting part of the polishing part is threadedly connected to the bolt, and the diameter of the bolt adjustment part is greater than the length of the connecting part of the polishing part, and a through hole is opened on the side of the limit seat away from the polishing part.

[0007] Preferably, the first support member is connected to the second support member via a moving assembly, the second support member can clamp the steel pipe via a clamping assembly, and the steel pipe can be rotated via a driving assembly.

[0008] Preferably, the moving component includes a second electric push rod, a second slider and a slide groove. The second electric push rod is installed at one end of the first support member away from the slide seat. The output end of the second electric push rod is connected to the second slider. The second slider can slide along the slide groove opened in the first support member, and the second support member is installed at the top end of the second slider.

[0009] Preferably, the clamping assembly includes a third electric push rod and a clamping member, and two groups of the third electric push rods are mirror-mounted in the inner cavities at both ends of the second support member, and the output end of the third electric push rod is connected to the clamping member, and the clamping member is provided with the drive assembly.

[0010] Preferably, the driving assembly includes rollers and a motor, each group of the clamping members is mounted with two groups of rotatable rollers, the four groups of rollers are symmetrical in pairs, and the rollers are connected to the output end of the motor.

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

[0012] 1. The utility model can push the first sliding block to rise and fall along the inner cavity of the sliding seat through the extension and retraction of the first electric push rod, and can drive the limit rod and the limit seat to adjust the height, so that the grinding piece can be adapted according to the steel pipes of different thicknesses. After the grinding piece contacts the inner wall of the steel pipe, the elastic piece can be used to continuously push the grinding piece to contact the inner wall of the steel pipe. Even if the grinding piece is worn during use, it can still maintain close contact with the inner wall of the steel pipe to achieve a good grinding effect. Compared with the prior art, it can be adapted according to the steel pipes of different thicknesses, and the grinding piece can always maintain contact with the inner wall of the steel pipe during grinding to achieve a good grinding effect. There is no need to calibrate the grinding piece, which can improve the grinding efficiency.

[0013] 2. When installing the utility model, the connecting piece of the grinding piece is penetrated through the partition, and then the bolt is threaded. Since the diameter of the bolt adjustment part is larger than the length of the connecting piece of the grinding piece, the connection between the grinding piece and the partition can be completed after tightening the bolt. The through hole can be used for tools such as screwdrivers in the prior art to pass through, and is used to tighten the bolt. The spring can push the partition to drive the grinding piece to extend out of the limit seat and contact the inner wall of the steel pipe.

[0014] 3. The utility model can push the clamping member to clamp the steel pipe by extending the third electric push rod, and make the roller contact with the outer wall of the steel pipe. By starting the motor, the roller can be driven to rotate, and the steel pipe in contact with the roller can be driven to rotate, so that the grinding member can grind the entire inner wall of the steel pipe. Then, by extending the second electric push rod, the second slider can be pushed to slide along the slide groove, which can drive the second support member to move, drive the clamped steel pipe to move, and grind the inner wall of the entire steel pipe, thereby improving the grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the overall structure of the utility model;

[0016] Figure 2 It is an enlarged view of structure A of the utility model;

[0017] Figure 3 It is a right front schematic diagram of the overall structure of the utility model;

[0018] Figure 4 It is a left front schematic diagram of the overall structure of the utility model.

[0019] In the figure: 1. first support member, 2. slide seat, 3. first electric push rod, 4. first slider, 5. limit rod, 6. limit seat, 7. bolt, 8. grinding member, 9. spring, 10. connecting plate, 11. through hole, 12. second support member, 13. second electric push rod, 14. second slider, 15. slide groove, 16. third electric push rod, 17. clamping member, 18. roller, 19. motor. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1

[0022] Please refer to Figure 1-4 As shown, the utility model provides a steel pipe inner wall grinding device, including a first support member 1, a slide seat 2 is installed at one end of the first support member 1, a first electric push rod 3 is installed in the inner cavity of the slide seat 2, the output end of the first electric push rod 3 is connected to the first slider 4, the first slider 4 can slide along the inner cavity of the slide seat 2, a limit rod 5 is installed on one side of the top of the first slider 4, a limit seat 6 is installed on the other end of the limit rod 5, an elastic member is installed in the inner cavity of the limit seat 6, a grinding member 8 is connected to one side of the elastic member by a bolt 7, and the grinding member 8 can extend to the outside of the limit seat 6 to contact the inner wall of the steel pipe.

[0023] In this embodiment, the first sliding block 4 can be pushed up and down along the inner cavity of the sliding seat 2 by extending and retracting the first electric push rod 3, which can drive the limit rod 5 and the limit seat 6 to adjust the height, so that the grinding piece 8 can be adapted according to the steel pipes of different thicknesses. After the grinding piece 8 contacts the inner wall of the steel pipe, the elastic piece can be used to continuously push the grinding piece 8 to contact the inner wall of the steel pipe. Even if the grinding piece 8 is worn during use, it can still maintain close contact with the inner wall of the steel pipe to achieve a good grinding effect. Compared with the prior art, it can be adapted according to the steel pipes of different thicknesses, and the grinding piece 8 can also always maintain contact with the inner wall of the steel pipe during grinding to achieve a good grinding effect. There is no need to calibrate the grinding piece, which can improve the grinding efficiency.

[0024] Please refer to Figure 1-4 As shown, the elastic member includes a spring 9 and a partition 10. Two groups of springs 9 are installed in the inner cavity of the limit seat 6. The spring 9 is connected to the partition 10. The partition 10 can be penetrated by the connecting piece of the grinding piece 8. The connecting piece of the grinding piece 8 is threadedly connected to the bolt 7, and the diameter of the adjusting part of the bolt 7 is greater than the length of the connecting piece of the grinding piece 8. A through hole 11 is opened on the side of the limit seat 6 away from the grinding piece 8.

[0025] In this embodiment, during installation, the connecting piece of the grinding piece 8 is penetrated through the partition 10, and then the bolt 7 is threadedly connected. Since the diameter of the adjusting portion of the bolt 7 is larger than the length of the connecting piece of the grinding piece 8, the connection between the grinding piece 8 and the partition 10 can be completed after tightening the bolt 7. The through hole 11 can be used for tools such as screwdrivers in the prior art to pass through, and is used to tighten the bolt 7. The spring 9 can push the partition 10 to drive the grinding piece 8 to extend out of the limit seat 6 and contact the inner wall of the steel pipe.

[0026] Please refer to Figure 1-4 As shown, the first support member 1 is connected to the second support member 12 through a moving assembly, the second support member 12 can clamp the steel pipe through a clamping assembly, and the steel pipe can be rotated by a driving assembly. The moving assembly includes a second electric push rod 13, a second slider 14 and a slide groove 15. The second electric push rod 13 is installed at the end of the first support member 1 away from the slide seat 2, and the output end of the second electric push rod 13 is connected to the second slider 14. The second slider 14 can slide along the slide groove 15 opened in the first support member 1, and the second support member 12 is installed on the top of the second slider 14. The clamping assembly includes a third electric push rod 16 and a clamping member 17. Two groups of third electric push rods 16 are installed in the inner cavity at both ends of the second support member 12 in a mirrored manner, and the output end of the third electric push rod 16 is connected to the clamping member 17. The clamping member 17 is provided with a driving assembly, and the driving assembly includes a roller 18 and a motor 19. Each group of clamping members 17 is installed with two groups of rotatable rollers 18, and the four groups of rollers 18 are symmetrical in pairs, and the rollers 18 are connected to the output end of the motor 19.

[0027] In this embodiment, by extending the third electric push rod 16, the clamping member 17 can be pushed to clamp the steel pipe, and the roller 18 can be brought into contact with the outer wall of the steel pipe. By starting the motor 19, the roller 18 can be driven to rotate, and the steel pipe in contact with it can be driven to rotate, so that the grinding member 8 can grind the entire inner wall of the steel pipe. Then, by extending the second electric push rod 13, the second slider 14 can be pushed to slide along the slide groove 15, which can drive the second support member 12 to move, drive the clamped steel pipe to move, and grind the inner wall of the entire steel pipe, thereby improving the grinding efficiency.

[0028] Working principle: First, by extending and retracting the first electric push rod 3, the first slide block 4 can be pushed up and down along the inner cavity of the slide seat 2, which can drive the limit rod 5 and the limit seat 6 to adjust the height, so that the grinding piece 8 can be adapted according to steel pipes of different thicknesses. After the grinding piece 8 contacts the inner wall of the steel pipe, the spring 9 can push the partition 10 to drive the grinding piece 8 to extend out of the limit seat 6 and contact the inner wall of the steel pipe, so that the grinding piece can always contact the inner wall of the steel pipe. By extending the third electric push rod 16, the clamping piece can be pushed 17 is used to clamp the steel pipe, and the roller 18 is brought into contact with the outer wall of the steel pipe. By starting the motor 19, the roller 18 can be driven to rotate, and the steel pipe in contact with the roller 18 can be driven to rotate, so that the grinding member 8 can grind the entire inner wall of the steel pipe. Then, by extending the second electric push rod 13, the second slider 14 can be pushed to slide along the slide groove 15, so as to drive the second support member 12 to move, drive the clamped steel pipe to move, and grind the inner wall of the entire steel pipe, thereby improving the grinding efficiency.

[0029] The contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A steel pipe inner wall grinding device, comprising a first support member (1), characterized in that: A sliding seat (2) is installed at one end of the first support member (1), a first electric push rod (3) is installed in the inner cavity of the sliding seat (2), an output end of the first electric push rod (3) is connected to a first slider (4), the first slider (4) can slide along the inner cavity of the sliding seat (2), a limit rod (5) is installed on one side of the top end of the first slider (4), a limit seat (6) is installed on the other end of the limit rod (5), an elastic member is installed in the inner cavity of the limit seat (6), one side of the elastic member is connected to a grinding member (8) by a bolt (7), and the grinding member (8) can extend to the outside of the limit seat (6) to contact the inner wall of the steel pipe.

2. A steel pipe inner wall grinding device according to claim 1, characterized in that: The elastic member comprises a spring (9) and a partition (10); two groups of the springs (9) are installed in the inner cavity of the limit seat (6); the springs (9) are connected to the partition (10); the partition (10) can be penetrated by the connecting piece of the grinding piece (8); the connecting piece of the grinding piece (8) is threadedly connected to the bolt (7); and the diameter of the adjusting portion of the bolt (7) is greater than the length of the connecting piece of the grinding piece (8); and a through hole (11) is formed on the side of the limit seat (6) away from the grinding piece (8).

3. A steel pipe inner wall grinding device according to claim 1, characterized in that: The first support member (1) is connected to the second support member (12) via a moving assembly; the second support member (12) can clamp the steel pipe via a clamping assembly; and the steel pipe can be rotated via a driving assembly.

4. A steel pipe inner wall grinding device according to claim 3, characterized in that: The moving assembly comprises a second electric push rod (13), a second slider (14) and a slide groove (15); the second electric push rod (13) is installed at one end of the first support member (1) away from the slide seat (2); the output end of the second electric push rod (13) is connected to the second slider (14); the second slider (14) can slide along the slide groove (15) provided on the first support member (1); and the second support member (12) is installed at the top end of the second slider (14).

5. A steel pipe inner wall grinding device according to claim 3, characterized in that: The clamping assembly comprises a third electric push rod (16) and a clamping member (17); two groups of the third electric push rods (16) are installed in a mirror-like manner in the inner cavities at both ends of the second support member (12); the output end of the third electric push rod (16) is connected to the clamping member (17); and the clamping member (17) is provided with the driving assembly.

6. A steel pipe inner wall grinding device according to claim 5, characterized in that: The driving assembly comprises rollers (18) and a motor (19), each group of the clamping members (17) is provided with two groups of rotatable rollers (18), the four groups of rollers (18) are symmetrical in pairs, and the rollers (18) are connected to the output end of the motor (19).

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