A device for polishing inner wall of anti-damage pipe fitting

Abstract

The present invention relates to a polishing device, more specifically to a device for polishing the inner wall of a pipe to prevent damage, comprising a tail end stabilizing mechanism, a rotating rod mechanism and a polishing brush mechanism, wherein the rotating rod mechanism is fixedly mounted on the tail end stabilizing mechanism, and the polishing brush mechanism is fixedly mounted on the rotating rod mechanism; the device can ensure the stability of the pipe during polishing, and can perform polishing operations on longer pipes; the device can protect the polishing brush and prevent the pipe mouth from wearing the polishing brush.

Description

Technical Field

[0001] The invention relates to a polishing device, in particular to a device for polishing the inner wall of a pipe to prevent damage. Background Art

[0002] After stainless steel pipe fittings are manufactured, they need to be surface polished. Polishing can form a protective film on the inner and outer walls of the stainless steel pipe fittings, which can better isolate the stainless steel from water and air and improve the stainless steel's rust-proof properties. The inventors have found that in the prior art, only shorter pipes can be polished for the inner walls of the pipe fittings. Once the pipe fittings are too long, there is a problem of being unable to polish. At the same time, the diameter of the polishing brush is often larger than the diameter of the pipe fitting's mouth. When the rotating polishing brush enters the pipe fitting, it will be severely worn by the mouth of the pipe fitting, reducing the service life of the polishing brush. Summary of the invention

[0003] The main technical problem solved by the present invention is to provide a device for polishing the inner wall of a pipe that prevents damage. The device can ensure the stability of the pipe during polishing, and can perform polishing operations on longer pipes. The device can protect the polishing brush and avoid wear of the polishing brush by the pipe mouth.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] A device for polishing the inner wall of a pipe to prevent damage comprises a tail end stabilizing mechanism, a rotating rod mechanism and a polishing brush mechanism. The rotating rod mechanism is fixedly mounted on the tail end stabilizing mechanism, and the polishing brush mechanism is fixedly mounted on the rotating rod mechanism.

[0006] As a further optimization of the technical solution, the tail end stabilizing mechanism described in the anti-damage pipe inner wall polishing device of the present invention includes a polishing motor, a base, a threaded rod, a pushing motor, a main sprocket, a chain, an internally threaded sprocket ring, a fixed seat, a bracket, a roller, and a movable seat. The polishing motor is fixedly installed in a through hole set on the base, a fixed seat is fixedly installed on the base, a bracket is fixedly installed on the fixed seat, a roller is rotatably installed in a groove set on the bracket, a pushing motor is fixedly installed on the base, a main sprocket is fixedly installed on the output end of the pushing motor, the main sprocket is meshed with the chain, the chain is meshed with the internally threaded sprocket ring, the internally threaded sprocket ring is rotatably installed in the groove set on the fixed seat, the internally threaded sprocket ring is threadedly connected to the threaded rod, the threaded rod passes through the through hole set on the fixed seat and is fixedly installed on the movable seat, and a bracket is fixedly installed on the movable seat.

[0007] As a further optimization of the technical solution, the rotating rod mechanism described in the anti-damage pipe inner wall polishing device of the present invention includes a main rod, a limit ring, a spherical part, a support outer arm, a hydraulic cylinder 1, a support inner arm, a hinge head, and a hydraulic cylinder 2. The main rod is fixedly installed on the output end of the polishing motor, the main rod is in contact with the roller, the hydraulic cylinder 2 is fixedly installed in a groove set on the main rod, the output end of the hydraulic cylinder 2 is fixedly installed with a hinge head, the hinge head is hinged to the support inner arm, the support inner arm is hinged to the support outer arm, one end of the support outer arm is rotatably installed in the groove set on the main rod, the other end of the support outer arm is fixedly installed with a spherical part, the groove set on the main rod is fixedly installed with a hydraulic cylinder 1, the output end of the hydraulic cylinder 1 is fixedly installed with a limit ring, and the limit ring is slidably installed in the through hole set on the main rod.

[0008] As a further optimization of the technical solution, the polishing brush mechanism described in the anti-damage pipe inner wall polishing device of the present invention includes a grooved cylindrical part, a first hinged plate, a hydraulic cylinder three, a sliding U-shaped plate, a gear part, a gear limiter, a polishing brush, a sliding groove plate, and a second hinged plate. The grooved cylindrical part is fixedly installed on the main rod, and the first hinged plate is rotatably installed in the groove set on the grooved cylindrical part, and the second hinged plate is rotatably installed in the groove set on the grooved cylindrical part. The second hinged plate is rotatably installed in the groove set on the sliding groove plate, and the first hinged plate is rotatably installed in the groove set on the sliding groove plate. The first hinged plate is rotatably installed in the groove set on the sliding groove plate, and the hydraulic cylinder three is fixedly installed on the sliding groove plate. The output end of the hydraulic cylinder three is fixedly installed with a sliding U-shaped plate, and the sliding U-shaped plate is slidably installed in the groove set on the sliding groove plate. The sliding groove plate is provided with tooth patterns, and the gear limiter is rotatably installed in the groove set on the sliding U-shaped plate. The gear part is fixedly installed on the gear limiter, and the polishing brush is fixedly installed on the gear limiter. The gear part is meshed with the tooth patterns, and the limit ring is sleeved on the sliding groove plate.

[0009] The beneficial effects of the anti-damage pipe inner wall polishing device of the present invention are:

[0010] 1. When the main rod is long, the rotating main rod will swing in a circle in the middle under the action of centrifugal force, causing instability. Multiple rollers will move the main rod to ensure the stability of the main rod when it rotates. The pushing motor is started, and the pushing motor drives the main sprocket to rotate. The main sprocket drives the internal threaded sprocket ring to rotate through the chain. The internal threaded sprocket ring is threadedly connected to the threaded rod. At this time, the threaded rod moves and pushes the moving seat, so that the distance between the moving seat and the fixed seat becomes larger, that is, the limiting range of the roller on the main rod is increased, thereby ensuring the stability of the main rod when it rotates.

[0011] 2. Start hydraulic cylinder 2, which pushes the inner support arm to unfold through the hinge joint, and the inner support arm pushes the outer support arm to unfold, so that the spherical parts at both ends contact the inner wall of the pipe fitting. When the main rod rotates, the spherical parts and the outer support arm limit the main rod inside the pipe fitting, which can ensure the stability of the main rod, that is, ensure that the polishing brush mechanism can perform polishing operations stably.

[0012] 3. The diameter of the polishing brush must be larger than the diameter of the pipe fitting to ensure the polishing effect. When the rotating polishing brush enters the inside of the pipe fitting, it will be worn by the edge of the pipe fitting, reducing the service life of the polishing brush. Before the rotating polishing brush mechanism enters the inside of the pipe fitting, start hydraulic cylinder three, and hydraulic cylinder three drives the sliding U-shaped plate to move. Since the gear part is engaged with the tooth pattern, when the sliding U-shaped plate moves, it drives the gear part to rotate, and the gear part drives the gear limit part to rotate. The gear limit part rotates and tilts, causing the polishing brush on it to tilt, thereby reducing the overall diameter of the polishing brush mechanism and preventing the polishing brush from being worn by the pipe mouth.

[0013] 4. After the polishing brush has been in operation for a long time, it will be severely worn and become shorter, unable to contact the inner wall of the pipe. At this time, hydraulic cylinder 1 is started, and hydraulic cylinder 1 contracts to pull the limit ring to move, so that the limit ring is separated from the polishing brush mechanism. At this time, when the polishing brush mechanism rotates, under the action of centrifugal force, the sliding groove plate will move outward, and the inclined first hinge plate and second hinge plate will be perpendicular to the grooved columnar part, thereby increasing the diameter of the polishing brush, achieving the purpose of fully utilizing the polishing brush and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0015] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of a device for polishing the inner wall of a damage-resistant pipe fitting.

[0016] Figure 2 It is a three-dimensional structural schematic diagram of a tail end stabilizing mechanism 1 of a device for polishing the inner wall of a pipe to prevent damage according to the present invention.

[0017] Figure 3 It is a schematic diagram of the partial cross-sectional structure of a tail end stabilizing mechanism 1 of a device for polishing the inner wall of a damage-proof pipe fitting according to the present invention.

[0018] Figure 4 It is a three-dimensional structural schematic diagram of a rotating rod mechanism 2 of a device for polishing the inner wall of a damage-proof pipe fitting according to the present invention.

[0019] Figure 5 It is a supplementary three-dimensional structural schematic diagram of a rotating rod mechanism 2 of a device for polishing the inner wall of a damage-proof pipe fitting according to the present invention.

[0020] Figure 6It is a three-dimensional structural schematic diagram of a polishing brush mechanism 3 of a device for polishing the inner wall of a pipe to prevent damage according to the present invention.

[0021] Figure 7 It is a three-dimensional structural schematic diagram of a polishing brush mechanism 3 of a device for polishing the inner wall of a pipe to prevent damage according to the present invention.

[0022] Figure 8 It is a schematic diagram of the three-dimensional structure of a grooved cylindrical member 3-1 of a device for polishing the inner wall of a pipe to prevent damage according to the present invention.

[0023] Fig. 9 It is a partial three-dimensional structural schematic diagram of a polishing brush mechanism 3 of a device for polishing the inner wall of a pipe to prevent damage according to the present invention.

[0024] Fig.10 It is a partial three-dimensional structural schematic diagram of a polishing brush mechanism 3 of a device for polishing the inner wall of a pipe to prevent damage according to the present invention.

[0025] Fig.11 It is a partial three-dimensional structural schematic diagram of a polishing brush mechanism 3 of a device for polishing the inner wall of a pipe to prevent damage according to the present invention.

[0026] In the figure: tail end stabilizing mechanism 1; polishing motor 1-1; base 1-2; threaded rod 1-3; driving motor 1-4; main sprocket 1-5; chain 1-6; internal threaded sprocket ring 1-7; fixed seat 1-8; bracket 1-9; roller 1-10; moving seat 1-11; rotating rod mechanism 2; main rod 2-1; limiting ring 2-2; spherical part 2-3; supporting outer arm 2-4; hydraulic cylinder one 2-5; supporting inner arm 2-6; hinged head 2-7; hydraulic cylinder two 2-8; polishing brush mechanism 3; grooved columnar part 3-1; first hinged plate 3-2; hydraulic cylinder three 3-3; sliding U-shaped plate 3-4; gear part 3-5; gear limiting part 3-6; polishing brush 3-7; sliding groove plate 3-8; tooth pattern 3-8-1; second hinged plate 3-9. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings. Specific implementation method one:

[0029] Combine the following Figure 1-11 The present embodiment describes a device for polishing the inner wall of a pipe to prevent damage, comprising a tail end stabilizing mechanism 1, a rotating rod mechanism 2 and a polishing brush mechanism 3, wherein the rotating rod mechanism 2 is fixedly mounted on the tail end stabilizing mechanism 1, and the polishing brush mechanism 3 is fixedly mounted on the rotating rod mechanism 2. Specific implementation method 2:

[0031] Combine the following Figure 1-11The present embodiment is described. The present embodiment further describes the first embodiment. The tail end stabilizing mechanism 1 includes a polishing motor 1-1, a base 1-2, a threaded rod 1-3, a driving motor 1-4, a main sprocket 1-5, a chain 1-6, an internal threaded sprocket ring 1-7, a fixed seat 1-8, a bracket 1-9, a roller 1-10, and a moving seat 1-11. The polishing motor 1-1 is fixedly installed in a through hole provided on the base 1-2. The base 1-2 is fixedly installed with a fixed seat 1-8. The fixed seat 1-8 is fixedly installed with a bracket 1-9. The bracket 1-9 is provided with a groove. A roller 1-10 is rotatably installed, a driving motor 1-4 is fixedly installed on the base 1-2, a main sprocket 1-5 is fixedly installed on the output end of the driving motor 1-4, the main sprocket 1-5 is meshed with the chain 1-6, the chain 1-6 is meshed with the internal threaded sprocket ring 1-7, the internal threaded sprocket ring 1-7 is rotatably installed in a groove set on the fixed seat 1-8, the internal threaded sprocket ring 1-7 is threadedly connected with the threaded rod 1-3, the threaded rod 1-3 passes through the through hole set on the fixed seat 1-8 and is fixedly installed on the moving seat 1-11, and a bracket 1-9 is fixedly installed on the moving seat 1-11. Specific implementation method three:

[0033] Combine the following Figure 1-11 This embodiment further describes the second embodiment. The rotating rod mechanism 2 includes a main rod 2-1, a limit ring 2-2, a spherical member 2-3, a supporting outer arm 2-4, a hydraulic cylinder 1 2-5, a supporting inner arm 2-6, a hinge joint 2-7, and a hydraulic cylinder 2-8. The main rod 2-1 is fixedly mounted on the output end of the polishing motor 1-1. The main rod 2-1 is in contact with the roller 1-10. The hydraulic cylinder 2-8 is fixedly mounted in a groove set on the main rod 2-1. The output end of the hydraulic cylinder 2-8 A hinged head 2-7 is fixedly installed, the hinged head 2-7 is hinged to the supporting inner arm 2-6, the supporting inner arm 2-6 is hinged to the supporting outer arm 2-4, one end of the supporting outer arm 2-4 is rotatably installed in a groove provided on the main rod 2-1, a spherical part 2-3 is fixedly installed on the other end of the supporting outer arm 2-4, a hydraulic cylinder 2-5 is fixedly installed in the groove provided on the main rod 2-1, a limiting ring 2-2 is fixedly installed on the output end of the hydraulic cylinder 2-5, and the limiting ring 2-2 is slidably installed in a through hole provided on the main rod 2-1. Specific implementation method four:

[0035] Combine the following Figure 1-11Description of this embodiment, this embodiment further describes the third embodiment, the polishing brush mechanism 3 includes a grooved cylindrical member 3-1, a first hinged plate 3-2, a hydraulic cylinder 3-3, a sliding U-shaped plate 3-4, a gear member 3-5, a gear limiter 3-6, a polishing brush 3-7, a sliding groove plate 3-8, and a second hinged plate 3-9. The grooved cylindrical member 3-1 is fixedly mounted on the main rod 2-1, and the first hinged plate 3-2 is rotatably mounted in the groove provided on the grooved cylindrical member 3-1, and the second hinged plate 3-9 is rotatably mounted in the groove provided on the grooved cylindrical member 3-1. The second hinged plate 3-9 is rotatably mounted in the groove provided on the sliding groove plate 3-8. The first hinged Plate 3-2 is rotatably installed in the groove set on the sliding groove plate 3-8, hydraulic cylinder three 3-3 is fixedly installed on the sliding groove plate 3-8, and a sliding U-shaped plate 3-4 is fixedly installed on the output end of the hydraulic cylinder three 3-3. The sliding U-shaped plate 3-4 is slidably installed in the groove set on the sliding groove plate 3-8, and the sliding groove plate 3-8 is provided with a tooth pattern 3-8-1. The gear limiter 3-6 is rotatably installed in the groove set on the sliding U-shaped plate 3-4, the gear part 3-5 is fixedly installed on the gear limiter 3-6, and a polishing brush 3-7 is fixedly installed on the gear limiter 3-6. The gear part 3-5 is meshed with the tooth pattern 3-8-1, and the limit ring 2-2 is sleeved on the sliding groove plate 3-8.

[0036] The working principle of the device for polishing the inner wall of a pipe to prevent damage of the present invention is as follows:

[0037] The device is installed on an external feeding device so that the feeding device can push the device into the pipe.

[0038] The polishing motor 1-1 is started, and the polishing motor 1-1 drives the polishing brush mechanism 3 to rotate through the main rod 2-1, so that the polishing brush 3-7 entering the interior of the pipe rotates to polish the inner wall of the pipe.

[0039] When the main rod 2-1 is longer, the rotating main rod 2-1 will swing in a circle under the action of centrifugal force, causing instability. Multiple rollers 1-10 will move the main rod 2-1 to ensure the stability of the main rod 2-1 during rotation. The pushing motor 1-4 will start, and the pushing motor 1-4 will drive the main sprocket 1-5 to rotate. The main sprocket 1-5 will drive the internal threaded sprocket ring 1-7 to rotate through the chain 1-6. The internal threaded sprocket ring 1-7 is threadedly connected to the threaded rod 1-3. At this time, the threaded rod 1-3 moves and pushes the moving seat 1-11, so that the distance between the moving seat 1-11 and the fixed seat 1-8 becomes larger, that is, the limiting range of the roller 1-10 on the main rod 2-1 is increased, thereby ensuring the stability of the main rod 2-1 during rotation.

[0040] Start hydraulic cylinder 2-8, which pushes the supporting inner arm 2-6 to unfold through the hinge joint 2-7, and the supporting inner arm 2-6 pushes the supporting outer arm 2-4 to unfold, so that the spherical parts 2-3 at both ends contact the inner wall of the pipe fitting. When the main rod 2-1 rotates, the spherical part 2-3 and the supporting outer arm 2-4 limit the main rod 2-1 inside the pipe fitting, which can ensure the stability of the main rod 2-1, that is, ensure that the polishing brush mechanism 3 can stably perform polishing operations.

[0041] The diameter of the polishing brush 3-7 must be larger than the diameter of the pipe fitting to ensure the polishing effect. When the rotating polishing brush 3-7 enters the interior of the pipe fitting, it will be worn by the edge of the pipe fitting mouth, reducing the service life of the polishing brush 3-7. Before the rotating polishing brush mechanism 3 enters the interior of the pipe fitting, start the hydraulic cylinder 3-3, and the hydraulic cylinder 3-3 drives the sliding U-shaped plate 3-4 to move. Since the gear part 3-5 is meshed with the tooth pattern 3-8-1, when the sliding U-shaped plate 3-4 moves, it drives the gear part 3-5 to rotate, and the gear part 3-5 drives the gear limit part 3-6 to rotate. The gear limit part 3-6 rotates and tilts, causing the polishing brush 3-7 thereon to tilt, thereby reducing the overall diameter of the polishing brush mechanism 3 and preventing the polishing brush 3-7 from being worn by the pipe mouth.

[0042] When the polishing brush 3-7 has been in operation for a long time, it will be severely worn and become shorter, unable to contact the inner wall of the pipe. At this time, the hydraulic cylinder 2-5 is started, and the hydraulic cylinder 2-5 contracts to pull the limit ring 2-2 to move, so that the limit ring 2-2 is separated from the polishing brush mechanism 3. At this time, when the polishing brush mechanism 3 rotates, under the action of centrifugal force, the sliding groove plate 3-8 will move outward, and the inclined first hinge plate 3-2 and the second hinge plate 3-9 will be perpendicular to the grooved columnar member 3-1, thereby increasing the diameter of the polishing brush 3-7, achieving the purpose of fully utilizing the polishing brush 3-7 and reducing production costs.

[0043] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also fall within the protection scope of the present invention.

Claims

1. A device for polishing the inner wall of a pipe to prevent damage, comprising a tail end stabilizing mechanism (1), a rotating rod mechanism (2) and a polishing brush mechanism (3), characterized in that: The rotating rod mechanism (2) is fixedly mounted on the tail end stabilizing mechanism (1), and the polishing brush mechanism (3) is fixedly mounted on the rotating rod mechanism (2); The tail end stabilizing mechanism (1) comprises a polishing motor (1-1), a base (1-2), a threaded rod (1-3), a driving motor (1-4), a main sprocket (1-5), a chain (1-6), an internal threaded sprocket ring (1-7), a fixed seat (1-8), a bracket (1-9), a roller (1-10), and a moving seat (1-11). The polishing motor (1-1) is fixedly mounted in a through hole provided on the base (1-2), the base (1-2) is fixedly mounted with a fixed seat (1-8), the bracket (1-9) is fixedly mounted on the fixed seat (1-8), and the roller (1-10) is rotatably mounted in a groove provided on the bracket (1-9). ), a driving motor (1-4) is fixedly mounted on the base (1-2), a main sprocket (1-5) is fixedly mounted on the output end of the driving motor (1-4), the main sprocket (1-5) is meshed with a chain (1-6), the chain (1-6) is meshed with an internal thread sprocket ring (1-7), the internal thread sprocket ring (1-7) is rotatably mounted in a groove provided on a fixed seat (1-8), the internal thread sprocket ring (1-7) is threadedly connected with a threaded rod (1-3), the threaded rod (1-3) passes through a through hole provided on the fixed seat (1-8) and is fixedly mounted on a movable seat (1-11), and a bracket (1-9) is fixedly mounted on the movable seat (1-11); The rotating rod mechanism (2) comprises a main rod (2-1), a limiting ring (2-2), a spherical member (2-3), a supporting outer arm (2-4), a hydraulic cylinder 1 (2-5), a supporting inner arm (2-6), a hinge joint (2-7), and a hydraulic cylinder 2 (2-8). The main rod (2-1) is fixedly mounted on the output end of the polishing motor (1-1). The main rod (2-1) is in contact with the roller (1-10). The hydraulic cylinder 2 (2-8) is fixedly mounted in a groove provided on the main rod (2-1). The output end of the hydraulic cylinder 2 (2-8) is fixedly mounted with the hinge joint (2-7). ), the hinge head (2-7) is hingedly connected to the inner support arm (2-6), the inner support arm (2-6) is hingedly connected to the outer support arm (2-4), one end of the outer support arm (2-4) is rotatably mounted in a groove provided on the main rod (2-1), the other end of the outer support arm (2-4) is fixedly mounted with a spherical member (2-3), a hydraulic cylinder (2-5) is fixedly mounted in the groove provided on the main rod (2-1), a limit ring (2-2) is fixedly mounted on the output end of the hydraulic cylinder (2-5), and the limit ring (2-2) is slidably mounted in a through hole provided on the main rod (2-1); The polishing brush mechanism (3) comprises a grooved columnar member (3-1), a first hinged plate (3-2), a hydraulic cylinder (3-3), a sliding U-shaped plate (3-4), a gear member (3-5), a gear stop member (3-6), a polishing brush (3-7), a sliding groove plate (3-8), and a second hinged plate (3-9). The grooved columnar member (3-1) is fixedly mounted on the main rod (2-1). The first hinged plate (3-2) is rotatably mounted in a groove provided on the grooved columnar member (3-1). The second hinged plate (3-9) is rotatably mounted in a groove provided on the sliding groove plate (3-8). The first hinged plate (3-2) is rotatably mounted on the sliding groove plate The invention relates to a gear limiting member (3-6) and a gear limiting member (3-5). The gear limiting member (3-6) is fixedly mounted on the gear limiting member (3-6). The gear limiting member (3-6) is fixedly mounted on the gear limiting member (3-6). The gear limiting member (3-6) is fixedly mounted on the gear limiting member (3-6). The gear limiting member (3-6) is fixedly mounted on the gear limiting member (3-6). The gear limiting member (3-5) is meshed with the toothed member (3-8-1). The limiting ring (2-2) is sleeved on the sliding groove plate (3-8).

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