CN112122709A - Portable conveying pipeline paint removal grinding device - Google Patents

Abstract

The invention discloses a portable conveying pipeline paint-removing and polishing device, which relates to the technical field of pipeline paint-removing devices, comprising an annular support frame, a pushing device, a feeding device and a scraper assembly. A plurality of feeding devices are fixed on the inner wall of the annular support frame, and the scraper assembly is fixed on the feeding device. The scraper assembly is located between the feeding device and the outer wall of the pipe. The feeding device is used to adjust the scraper assembly and the outer wall of the pipe. The pushing device is detachably fixed on the outer wall of the pipeline, the pushing device is in contact with the annular support frame, and the pushing device drives the annular support frame to rotate. The invention can carry out the process of removing paint on the outer wall of the pipeline in a narrow gap, has a small structure, is convenient to carry, and significantly improves the efficiency of removing paint.

Description

A portable conveying pipeline paint removing and polishing device

technical field

The invention relates to the technical field of pipeline paint removing devices, in particular to a portable conveying pipeline paint removing and polishing device.

Background technique

The non-destructive testing of conveying pipelines requires paint removal on the outside of the steel pipe to ensure that the detected thickness of the steel pipe is very accurate. Working in mountainous areas, it is difficult to carry large-scale automation equipment, and most of the transportation pipelines are designed for multi-pipe side-by-side transportation and the routes laid are complex in terrain, such as high-altitude transportation pipelines, underground pipelines transported according to mountain conditions, etc. At present, paint removal is mainly done by manual shoveling or grinding, which is not only time-consuming and labor-intensive, but also has problems such as the narrow gap between the two conveying pipes, which causes incomplete paint removal and inaccurate detection.

Therefore, there is an urgent need for a portable conveying pipeline paint removing device in the market to solve the above problems.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a portable conveying pipeline paint removing and polishing device, which is used to solve the technical problems existing in the above-mentioned prior art.

For achieving the above object, the present invention provides the following scheme:

The invention discloses a portable conveying pipeline paint removing and polishing device, comprising an annular support frame, a pushing device, a feeding device and a scraper assembly. The annular support frame is sleeved on the outer wall of the pipeline, and the feeding devices are multiple. A plurality of the feeding devices are fixed on the inner wall of the annular support frame, the scraper assembly is fixed on the feeding device, and the scraper assembly is located between the feeding device and the outer wall of the pipe, the feeding The feeding device is used to adjust the distance between the scraper assembly and the outer wall of the pipeline, the pushing device is detachably fixed on the outer wall of the pipeline, the pushing device is in contact with the annular support frame, and the pushing device drives the annular support frame to rotate ;

The pushing device includes double-ended studs, two stud nuts and two pushing support rods, the two pushing support rods are respectively located on both sides of the annular support frame, and the pushing support rods include straight rods and arcs. The middle part of the outer side of the arc-shaped rod is fixed on the first end of the straight rod, the inner side of the arc-shaped rod is used to abut against the outer wall of the pipe, the second end of the straight rod has a through hole, and the The diameter of the middle part of the double-ended stud is larger than the diameter of the two ends, the two ends of the double-ended stud have external threads, and the two ends of the double-ended stud pass through the through holes on the two straight rods respectively, The two stud nuts are threadedly connected with both ends of the double-ended stud, and the stud nuts are located outside the straight rod;

The two sides of the annular support frame are provided with a plurality of raised parts, and the plurality of raised parts are distributed at intervals; a stopper is fixed on the straight rod, and the stopper is used to abut against the raised part;

It also includes two support frame pins, the annular support frame includes an upper ring body support frame and a lower ring body support frame, the upper ring body support frame and the lower ring body support frame are both arc structures, and the When the two ends of the upper ring body support frame and the lower ring body support frame are abutting against each other, a circular structure can be formed, and the two ends of the upper ring body support frame and the lower ring body support frame are provided with insert blocks at intervals, The insert blocks of the upper ring body support frame and the lower ring body support frame are distributed in a staggered manner, the insert blocks are provided with insertion holes, and the support frame pins pass through the upper ring body support frame and the lower ring body support frame in turn. the insert block of the lower ring body support frame;

The feeding device includes a hand wheel, a worm, a worm wheel, a pressing plate and a screw, the hand wheel is fixed on one end of the worm, the worm is engaged with the worm wheel, and the pressing plate is located on the worm wheel close to the scraper. On one side of the assembly, the middle part of the pressure plate has a threaded hole, the middle part of the screw rod is threadedly connected with the threaded hole, one end of the screw rod is fixed on the inner wall of the worm wheel, the pressure plate and the scraper assembly relatively fixed;

It also includes two springs, the scraper assembly includes a cutter, a connecting body and a connecting nut, the cutter is fixed on the side of the connecting body close to the outer wall of the pipe, and the side of the connecting body away from the outer wall of the pipe has two connecting posts , there are connection holes on both sides of the pressing plate, the connection post passes through the connection hole, and one end of the connection post passing through the connection hole has an external thread, and the connection post is threadedly connected with the connection nut, The inner diameter of the spring is larger than the inner diameter of the connecting hole, the first end of the spring is in contact with the side of the pressing plate close to the cutter, and the second end of the spring is in contact with the cutter;

It also includes an angular contact ball bearing and a thrust ball bearing. There are two angular contact ball bearings. The two angular contact ball bearings are fixed at both ends of the worm, and the inner wall of the thrust ball bearing is fixed on the wire. The rod passes through one end of the threaded hole, and one side of the thrust ball bearing is fixed on the inner wall of the annular support frame;

It also includes a fixing frame, the inner wall of the annular support frame is provided with a plurality of installation chambers, the installation chamber has two openings, the positions of the two openings are opposite, and the two openings are located on a straight line with the ring shape. The axial direction of the support frame is the same, the worm, the worm gear, the angular contact ball bearing, the thrust ball bearing and the pressing plate are all located in the installation chamber, the screw rod, the connecting column and the The springs all run through the installation chamber, there are a plurality of the fixing brackets, one of the fixing brackets is fixed to each of the openings, the worm screw runs through one of the fixing brackets, and the handwheel is located in the outside of the mount.

The present invention has achieved the following technical effects with respect to the prior art:

The attachment of the annular support frame to the outer wall of the pipeline can realize intermittent rotation on the steel pipe to be depainted, and the entire circumference of depainting can be realized by manually pushing the double-ended stud back and forth. The invention has the advantages of simple structure, reduced weight, convenient carrying, detachable, simple structure, complete paint removal, high efficiency and stable operation.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

1 is a schematic structural diagram of a portable conveying pipeline paint-removing and polishing device of the present embodiment;

FIG. 2 is a schematic structural diagram of the pushing device according to the present embodiment;

3 is a schematic structural diagram of the annular support frame of the present embodiment;

4 is a schematic structural diagram of the feeding device of this embodiment;

FIG. 5 is a schematic structural diagram of the installation chamber of this embodiment;

In the figure: 1-ring support frame; 2-pushing device; 3-feeding device; 4-scraper assembly; 5-pushing support rod; 6-double stud; 7-stud nut; 8-stop; 9 - Upper ring body support frame; 10 - Lower ring body support frame; 11 - Support frame pin; 12 - Hand wheel; 13 - Worm; 14 - Worm wheel; 15 - Tool; 16 - Spring; 17 - Screw; 18 - Fixed frame; 19-angular contact ball bearing; 20-thrust ball bearing; 21-pressing plate; 22-installation chamber.

Detailed ways

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, but not all of 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.

The purpose of the present invention is to provide a portable conveying pipeline paint removing and polishing device, which is used to solve the technical problems existing in the above-mentioned prior art.

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

As shown in FIGS. 1-5 , this embodiment provides a portable conveying pipeline paint removing and polishing device, including an annular support frame 1 , a pushing device 2 , a feeding device 3 and a scraper assembly 4 . The annular support frame 1 is sleeved on the outer wall of the pipe, and there are three feeding devices 3 , and the three feeding devices 3 are evenly fixed on the inner wall of the annular support frame 1 . The scraper assembly 4 is fixed on the feeding device 3, the scraper assembly 4 is located between the feeding device 3 and the outer wall of the pipe, the feeding device 3 is used to adjust the distance between the scraper assembly 4 and the outer wall of the pipe, and the scraper assembly 4 is used for removing paint . The pushing device 2 is detachably fixed on the outer wall of the pipeline, the pushing device 2 is in contact with the annular support frame 1 , and the pushing device 2 drives the annular support frame 1 to rotate.

When in use, first set the annular support frame 1 on the outer wall of the pipeline, then adjust the feeding device 3 so that the scraper assembly 4 is gradually close to the outer wall of the pipeline, and then the staff starts to push the pushing device 2, the pushing device 2 and the annular support frame 1 Therefore, the pushing device 2 will drive the annular support frame 1 to rotate, and the annular support frame 1 will then drive the scraper assembly 4 to rotate, thereby realizing the paint removal effect.

Regarding the specific structure of the pushing device 2 , in this embodiment, the pushing device 2 includes a double-ended stud 6 , two stud nuts 7 and two pushing support rods 5 , and the two pushing support rods 5 are respectively located at the On both sides, the push support rod 5 includes a straight rod and an arc-shaped rod. The outer middle of the arc-shaped rod is fixed to the first end of the straight rod. The size of the arc-shaped rod matches the diameter of the pipe, and the inner side of the arc-shaped rod is used for Against the outer wall of the pipe, the second end of the straight rod has a through hole, the diameter of the middle of the stud 6 is larger than the diameter of the two ends, the two ends of the stud 6 have external threads, and the two ends of the stud 6 are respectively threaded. Through the through holes on the two straight rods, the two ends of the middle part of the stud 6 are respectively abutted against the inner side of the two straight rods, so as to limit the position of the stud 6 and prevent the stud 6 from being used again. Move left and right. Two stud nuts 7 are threadedly connected with both ends of the double-ended stud 6, and the stud nut 7 is located on the outer side of the straight rod. play a fixed role. During use, the staff only needs to push the middle of the double-ended stud 6 to drive the push rod 5 to rotate on the outer wall of the pipe.

In order to realize that the pushing device 2 drives the annular support frame 1 to rotate, in this embodiment, the annular support frame 1 has a plurality of raised portions on both sides, the raised portions on both sides correspond one-to-one, the plurality of raised portions are distributed at intervals, and the straight rod A stopper 8 is fixed thereon, and the stopper 8 is used to abut against the raised portion. When in use, through the rotation of the straight rod part, the stopper 8 is rotated between two adjacent raised parts, and when it abuts against a raised part, it will drive the raised part to rotate, thereby driving the annular support frame 1 to rotate . Those skilled in the art can set the length of the straight rod according to actual needs. It should be noted that due to the principle of leverage, when the distance between the stud 6 and the stopper 8 is longer, the staff pushes the stud 6. It is labor-saving, so the length of the straight rod can be appropriately set to be longer. Further, those skilled in the art can also set the stopper 8 obliquely, and fix the stopper 8 on the straight rod through the torsion spring. The purpose of this setting is to make the cooperation between the stopper 8 and the raised part similar to that of a ratchet pawl. structure. When in use, when the straight rod drives the block 8 to rotate in the forward direction, the block 8 is deformed by a certain angle due to the action of the torsion spring, so as to rotate relative to the raised part, that is, when the block 8 is driven to rotate in the positive direction, the block 8 cannot be driven. The bulge turns. When the straight rod is reversely rotated, the stopper 8 will abut against the raised portion and will not be displaced from each other, thereby achieving the technical effect that the stopper 8 drives the raised portion to rotate.

For the structure of the annular support frame 1, this embodiment also includes two support frame pins 11. The annular support frame 1 includes an upper ring body support frame 9 and a lower ring body support frame 10. The upper ring body support frame 9 and the lower ring body support frame The support frames 10 are all arc-shaped structures. When the two ends of the upper ring body support frame 9 and the lower ring body support frame 10 are abutting against each other, a circular structure can be formed. The upper ring body support frame 9 is provided with a scraper assembly 4, and the lower ring body support frame 10 is provided with two scrapers. In the assembly 4, the three pipe assemblies are distributed at intervals, and the central angle between the two adjacent scraper assemblies 4 is 120°. Both ends of the upper ring body support frame 9 and the lower ring body support frame 10 are provided with insert blocks at intervals, specifically, each end is provided with two insert blocks, the insert blocks of the upper ring body support frame 9 and the lower ring body support frame 10 Staggered distribution, the two insert blocks at one end of the upper ring body support frame 9 can be inserted into the gaps between the two insert blocks at one end of the lower ring body support frame 10, so that the whole forms a complete circular ring, and the insert blocks have sockets, The support frame pins 11 pass through the insert blocks of the upper ring body support frame 9 and the lower ring body support frame 10 in sequence. The advantage of this arrangement is that it is convenient to disassemble, which can further reduce the overall volume of the device. When the annular support frame 1 needs to be used, it is only necessary to place the upper ring body support frame 9 above the outer wall of the pipe, and the lower ring body support frame 10 under the outer wall of the pipe, and then place the upper ring body support frame 9 with the lower ring body The two ends of the support frame 10 are aligned, and finally the upper ring body support frame 9 and the lower ring body support frame 10 can be fixed by using the support frame pin 11 to pass through the insert block.

As for the feeding device 3 , in this embodiment, the feeding device 3 includes a hand wheel 12 , a worm screw 13 , a worm wheel 14 , a pressing plate 21 and a screw rod 17 . The hand wheel 12 is fixed on one end of the worm 13, the worm 13 is engaged with the worm wheel 14, the pressing plate 21 is located on the side of the worm wheel 14 close to the scraper assembly 4, the middle of the pressing plate 21 has a threaded hole, the middle of the screw 17 is threadedly connected with the threaded hole, and the screw One end of the rod 17 has a key groove, the screw rod 17 is fixed to the inner wall of the worm wheel 14 through a key connection, and the pressing plate 21 is relatively fixed to the scraper assembly 4 . When the position of the scraper assembly 4 needs to be adjusted, the staff only needs to turn the hand wheel 12, thereby driving the worm 13 to rotate, the worm 13 drives the worm wheel 14 to rotate, the worm wheel 14 drives the screw 17 to rotate, and the rotation of the screw 17 drives the pressure plate 21 to move up and down , because the pressing plate 21 and the scraper assembly 4 are relatively fixed, the up and down movement of the pressing plate 21 can adjust the distance between the scraper assembly 4 and the outer wall of the pipe. Those skilled in the art preferably select the worm 13 and the worm wheel 14 which can realize self-locking.

For the scraper assembly 4, in this embodiment, two springs 16 are further included, and the scraper assembly 4 includes a cutter 15, a connecting body and a connecting nut. The cutter 15 is fixed on the side of the connecting body close to the outer wall of the pipe, and the function of the cutter 15 is to remove paint. The side of the connecting body away from the outer wall of the pipeline has two connecting columns, the two sides of the pressing plate 21 have connecting holes, the connecting columns pass through the connecting holes, the end of the connecting column passing through the connecting holes has external threads, and the connecting columns are threadedly connected with the connecting nut. The function of the connecting column is to guide and prevent the position of the pressure plate 21 from being offset. The inner diameter of the spring 16 is larger than the inner diameter of the connecting hole. In use, when the pressure plate 21 moves downward, the spring 16 is compressed, thereby pushing the tool 15 to move downward. As the pressure plate 21 continues to move downward, the pressure of the spring 16 on the tool 15 increases gradually, increasing the pressure of the tool 15 on the outer wall of the pipe. Pressure, when the cutter 15 rotates, so as to achieve the technical effect of paint removal. The function of the spring 16 is: in the process of paint removal, the tool 15 will move radially along the conveying pipeline. Without the spring 16, the tool 15 will be loosened without positive pressure, and the force of paint removal is not enough. The spring 16 can provide continuous positive pressure. .

In order to reduce the rotational friction, this embodiment also includes an angular contact ball bearing 19 and a thrust ball bearing 20. There are two angular contact ball bearings 19. The two angular contact ball bearings 19 are fixed on both ends of the worm 13. The thrust ball bearing 20 The inner wall of the thrust ball bearing 20 is fixed on the inner wall of the annular support frame 1, and the thrust ball bearing 20 reduces the friction between the screw rod 17 and the annular support frame 1 while reducing the friction between the screw rod 17 and the annular support frame 1. It can also withstand axial loads.

In this embodiment, a fixing frame 18 is also included. The inner wall of the annular support frame 1 has a plurality of installation chambers 22. The installation chamber 22 has two openings, and the positions of the two openings are opposite. The axial direction of the frame 1 is the same. The worm 13, the worm wheel 14, the angular contact ball bearing 19, the thrust ball bearing 20 and the pressure plate 21 are all located in the installation chamber 22, which can prevent other devices from touching the worm wheel 14, the worm 13 and other structures and causing damage. The side of the installation chamber 22 close to the outer wall of the pipeline has a plurality of installation through holes, the screw rod 17, the connecting column and the spring 16 all pass through the installation through holes, there are multiple fixing frames 18, and each opening is provided with a fixing frame 18 , the fixing frame 18 is fixed at the opening by screws, the worm 13 runs through a fixing frame 18, and the hand wheel 12 is located on the outer side of the fixing frame 18, so as to facilitate the rotation of the staff.

In this specification, specific examples are used to illustrate the principles and implementations of the present invention, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention; There will be changes in the specific implementation manner and application scope of the idea of the invention. In conclusion, the contents of this specification should not be construed as limiting the present invention.

Claims (1)

1. a portable conveying pipeline paint-removing and polishing device is characterized in that: comprising an annular supporting frame, a pushing device, a feeding device and a scraper assembly, the annular supporting frame is sleeved on the outer wall of the pipeline, and the feeding device is a plurality of A plurality of the feeding devices are fixed on the inner wall of the annular support frame, the scraper assembly is fixed on the feeding device, and the scraper assembly is located between the feeding device and the outer wall of the pipeline, so The feeding device is used to adjust the distance between the scraper assembly and the outer wall of the pipe, the pushing device is detachably fixed on the outer wall of the pipe, the pushing device is abutted against the annular support frame, and the pushing device drives the annular support rack rotation; The pushing device includes double-ended studs, two stud nuts and two pushing support rods, the two pushing support rods are respectively located on both sides of the annular support frame, and the pushing support rods include straight rods and arcs. The middle part of the outer side of the arc-shaped rod is fixed on the first end of the straight rod, the inner side of the arc-shaped rod is used to abut against the outer wall of the pipe, the second end of the straight rod has a through hole, and the The diameter of the middle part of the double-ended stud is larger than the diameter of the two ends, the two ends of the double-ended stud have external threads, and the two ends of the double-ended stud pass through the through holes on the two straight rods respectively, The two stud nuts are threadedly connected with both ends of the double-ended stud, and the stud nuts are located outside the straight rod; The two sides of the annular support frame are provided with a plurality of raised parts, and the plurality of raised parts are distributed at intervals; a stopper is fixed on the straight rod, and the stopper is used to abut against the raised part; It also includes two support frame pins, the annular support frame includes an upper ring body support frame and a lower ring body support frame, the upper ring body support frame and the lower ring body support frame are both arc structures, and the When the two ends of the upper ring body support frame and the lower ring body support frame are abutting against each other, a circular structure can be formed, and the two ends of the upper ring body support frame and the lower ring body support frame are provided with insert blocks at intervals, The insert blocks of the upper ring body support frame and the lower ring body support frame are distributed in a staggered manner, the insert blocks are provided with insertion holes, and the support frame pins pass through the upper ring body support frame and the lower ring body support frame in turn. the insert block of the lower ring body support frame; The feeding device includes a hand wheel, a worm, a worm wheel, a pressing plate and a screw, the hand wheel is fixed on one end of the worm, the worm is engaged with the worm wheel, and the pressing plate is located on the worm wheel close to the scraper. On one side of the assembly, the middle part of the pressure plate has a threaded hole, the middle part of the screw rod is threadedly connected with the threaded hole, one end of the screw rod is fixed on the inner wall of the worm wheel, the pressure plate and the scraper assembly relatively fixed; It also includes two springs, the scraper assembly includes a cutter, a connecting body and a connecting nut, the cutter is fixed on the side of the connecting body close to the outer wall of the pipe, and the side of the connecting body away from the outer wall of the pipe has two connecting posts , there are connection holes on both sides of the pressing plate, the connection post passes through the connection hole, and one end of the connection post passing through the connection hole has an external thread, and the connection post is threadedly connected with the connection nut, The inner diameter of the spring is larger than the inner diameter of the connecting hole, the first end of the spring is in contact with the side of the pressing plate close to the cutter, and the second end of the spring is in contact with the cutter; It also includes an angular contact ball bearing and a thrust ball bearing. There are two angular contact ball bearings. The two angular contact ball bearings are fixed at both ends of the worm, and the inner wall of the thrust ball bearing is fixed on the wire. The rod passes through one end of the threaded hole, and one side of the thrust ball bearing is fixed on the inner wall of the annular support frame; It also includes a fixing frame, the inner wall of the annular support frame is provided with a plurality of installation chambers, the installation chamber has two openings, the positions of the two openings are opposite, and the two openings are located on a straight line with the ring shape. The axial direction of the support frame is the same, the worm, the worm gear, the angular contact ball bearing, the thrust ball bearing and the pressing plate are all located in the installation chamber, the screw rod, the connecting column and the The springs all run through the installation chamber, there are a plurality of the fixing brackets, one of the fixing brackets is fixed to each of the openings, the worm screw runs through one of the fixing brackets, and the handwheel is located in the outside of the mount.

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