CN112122709A

CN112122709A - Portable conveying pipeline paint removal grinding device

Info

Publication number: CN112122709A
Application number: CN202011057661.XA
Authority: CN
Inventors: 谷大鹏; 张竞超; 陈素文; 王子博; 王帅兵; 徐铭仁; 陈小凡
Original assignee: Yanshan University
Current assignee: Dragon Totem Technology Hefei Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2020-12-25
Anticipated expiration: 2040-09-30
Also published as: CN112122709B

Abstract

The invention discloses a portable paint removing and polishing device for a conveying pipeline, and relates to the technical field of paint removing devices for pipelines. The invention can carry out paint removal process on the outer wall of the pipeline in a narrow gap, has smaller structure volume, is convenient to carry, and obviously improves the paint removal efficiency.

Description

Portable conveying pipeline paint removal grinding 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

The nondestructive detection of the conveying pipeline needs paint removal on the outer side of the steel pipe so as to ensure that the detected thickness of the steel pipe is very accurate. In the operation in mountain areas, large-scale automation equipment is difficult to carry, and most of the conveying pipelines are designed by multi-pipe side-by-side conveying and are paved with complicated route terrains, such as overhead conveying pipeline lines, underground buried pipes conveyed along mountains, and the like. At present, the paint is removed mainly in a manual shoveling or polishing mode, time and labor are wasted, and the problem of inaccurate detection caused by incomplete paint removal due to narrow gaps between two conveying pipelines exists.

Therefore, a portable paint removing device for a conveying pipeline is urgently needed in the market, and is used for solving the problems.

Disclosure of Invention

The invention aims to provide a portable paint removing and grinding device for a conveying pipeline, which is used for solving the technical problems in the prior art, has small volume and convenient carrying and can remove paint in the pipeline in a narrow gap.

In order to achieve the purpose, the invention provides the following scheme:

the invention discloses a portable paint removing and polishing device for a conveying pipeline, which comprises an annular supporting frame, a plurality of feeding devices and a scraper assembly, wherein the annular supporting frame is sleeved on the outer wall of the pipeline, the plurality of feeding devices are fixed on the inner wall of the annular supporting frame, the scraper assembly is fixed on the feeding devices, the scraper assembly is positioned between the feeding devices and the outer wall of the pipeline, the feeding devices are used for adjusting the distance between the scraper assembly and the outer wall of the pipeline, the pushing devices are detachably fixed on the outer wall of the pipeline, the pushing devices are abutted against the annular supporting frame, and the pushing devices drive the annular supporting frame to rotate;

the pushing device comprises a double-end stud, two stud nuts and two pushing support rods, the two pushing support rods are respectively positioned on two sides of the annular support frame, each pushing support rod comprises a straight rod and an arc-shaped rod, the middle part of the outer side of each arc-shaped rod is fixed at the first end of each straight rod, the inner side of each arc-shaped rod is used for abutting against the outer wall of a pipeline, the second end of each straight rod is provided with a through hole, the diameter of the middle part of each stud is larger than that of each end, the two ends of each stud are provided with external threads, the two ends of each stud respectively penetrate through the through holes in the two straight rods, the two stud nuts are in threaded connection with the two ends of each stud, and the;

a plurality of protruding parts are arranged on two sides of the annular supporting frame and distributed at intervals, and a stop block is fixed on the straight rod and used for abutting against the protruding parts;

the supporting frame comprises an upper ring body supporting frame and a lower ring body supporting frame, the upper ring body supporting frame and the lower ring body supporting frame are both arc-shaped structures, circular structures can be formed when two ends of the upper ring body supporting frame and the lower ring body supporting frame are abutted, inserting blocks are arranged at two ends of the upper ring body supporting frame and two ends of the lower ring body supporting frame at intervals, the inserting blocks of the upper ring body supporting frame and the lower ring body supporting frame are distributed in a staggered mode, inserting holes are formed in the inserting blocks, and the supporting frame pin shafts sequentially penetrate through the inserting blocks of the upper ring body supporting frame and the lower ring body supporting frame;

the feeding device comprises a hand wheel, a worm wheel, a pressing plate and a screw rod, the hand wheel is fixed at one end of the worm, the worm is meshed with the worm wheel, the pressing plate is positioned at one side of the worm wheel close to the scraper assembly, a threaded hole is formed in the middle of the pressing plate, the middle of the screw rod is in threaded connection with the threaded hole, one end of the screw rod is fixed on the inner wall of the worm wheel, and the pressing plate and the scraper assembly are relatively fixed;

the scraper component comprises a cutter, a connecting body and a connecting nut, the cutter is fixed on one side of the connecting body close to the outer wall of the pipeline, two connecting columns are arranged on one side of the connecting body far away from the outer wall of the pipeline, connecting holes are formed in two sides of the pressing plate, the connecting columns penetrate through the connecting holes, external threads are formed in one ends of the connecting columns penetrating through the connecting holes, the connecting columns are in threaded connection with the connecting nut, the inner diameter of each spring is larger than that of each connecting hole, the first end of each spring abuts against one side of the pressing plate close to the cutter, and the second end of each spring abuts against the cutter;

the worm is characterized by further comprising two angular contact ball bearings and two thrust ball bearings, the two angular contact ball bearings are fixed to two ends of the worm, the inner wall of each thrust ball bearing is fixed to one end, penetrating through the threaded hole, of the screw rod, and one side of each thrust ball bearing is fixed to the inner wall of the annular supporting frame;

still include the mount, a plurality of installation cavities have on the inner wall of annular bracing frame, the installation cavity has two openings, two the opening position is just right, two the opening place straight line with the axial direction of annular bracing frame is the same, the worm wheel angular contact ball bearing thrust ball bearing with the clamp plate all is located in the installation cavity, the lead screw the spliced pole with the spring all runs through in the installation cavity, the mount is a plurality of, every the opening is fixed one the mount, the worm runs through in one the mount, the hand wheel is located the outside of mount.

Compared with the prior art, the invention has the following technical effects:

the joint of the annular support frame and the outer wall of the pipeline can realize intermittent rotation on the steel pipe to be subjected to paint removal, and the complete-circle paint removal can be realized by manually pushing the double-end stud in a reciprocating manner. The invention has the advantages of simple structure, light weight, convenient carrying, detachability, simple structure, complete paint removal, high efficiency and stable operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural view of a portable conveying pipeline paint removal and polishing device according to the present embodiment;

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

FIG. 3 is a schematic structural view of the annular bracing frame of the present embodiment;

FIG. 4 is a schematic structural diagram of a feeding device in the present embodiment;

FIG. 5 is a schematic view of the installation chamber of the present embodiment;

in the figure: 1-an annular support frame; 2-a pushing device; 3-a feeding device; 4-a scraper assembly; 5-pushing the supporting rod; 6-double-end stud; 7-stud nut; 8-a stop block; 9-upper ring body support frame; 10-lower ring body support frame; 11-a support frame pin shaft; 12-a hand wheel; 13-a worm; 14-a worm gear; 15-a cutter; 16-a spring; 17-a screw rod; 18-a holder; 19-angular contact ball bearings; 20-thrust ball bearing; 21, pressing a plate; 22-installation chamber.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in fig. 1-5, the present embodiment provides a portable paint removing and polishing device for a conveying pipeline, which comprises an annular support frame 1, a pushing device 2, a feeding device 3 and a scraper assembly 4. Annular support frame 1 cover is located on the pipeline outer wall, and feeding device 3 is three, and three feeding device 3 evenly is fixed in on the inner wall of annular support frame 1. The scraper component 4 is fixed on the feeding device 3, the scraper component 4 is located between the feeding device 3 and the outer wall of the pipeline, the feeding device 3 is used for adjusting the distance between the scraper component 4 and the outer wall of the pipeline, and the scraper component 4 is used for removing paint. Thrust unit 2 can dismantle and be fixed in on the pipeline outer wall, and thrust unit 2 offsets with annular support frame 1, and thrust unit 2 drives annular support frame 1 and rotates.

During the use, establish annular support frame 1 cover on the pipeline outer wall earlier, then adjust feeding device 3 for the pipeline outer wall is hugged closely gradually to scraper subassembly 4, then the staff begins to promote thrust unit 2, and thrust unit 2 offsets with annular support frame 1, so thrust unit 2 can drive annular support frame 1 and rotate, and annular support frame 1 drives scraper subassembly 4 again and rotates, thereby realizes the depainting effect.

As for the specific structure of the pushing device 2, in this embodiment, the pushing device 2 includes a stud 6, two stud nuts 7 and two pushing support rods 5, the two pushing support rods 5 are respectively located at two sides of the annular support frame 1, the pushing support rods 5 include a straight rod and an arc rod, the middle part of the outer side of the arc rod is fixed at the first end of the straight rod, the size of the arc rod is matched with the diameter of the pipeline, the inner side of the arc rod is used for abutting against the outer wall of the pipeline, the second end of the straight rod has a through hole, the diameter of the middle part of the stud 6 is larger than the diameter of the two ends, the two ends of the stud 6 have external threads, the two ends of the stud 6 respectively penetrate through the through holes on the two straight rods, thereby limiting the stud 6 and avoiding the stud 6 from moving left and right in the reuse process. The two stud nuts 7 are in threaded connection with two ends of the stud 6, the stud nuts 7 are located on the outer side of the straight rod, and the middle of the stud 6 and the stud nuts 7 jointly act to fix the push support rod 5. In the use process, a worker only needs to push the middle part of the stud 6 to drive the push support rod 5 to rotate on the outer wall of the pipeline.

In order to realize that thrust unit 2 drives annular support frame 1 and rotates, annular support frame 1's both sides have a plurality of bellyings in this embodiment, the bellyings one-to-one of both sides, a plurality of bellyings interval distribution are fixed with dog 8 on the straight-bar, and dog 8 is used for offsetting with the bellyings. During the use, through the rotation of straight pole portion for dog 8 rotates between two adjacent bellyings, when supporting a bellyings, can drive the bellyings and rotate, thereby drive annular support frame 1 and rotate. The length of the straight rod can be set according to actual needs by a person skilled in the art, and it is noted that due to the lever principle, the longer the distance from the stud 6 to the stop block 8 is, the more labor is saved when the worker pushes the stud 6, so that the length of the straight rod can be properly set to be longer. Further, the person skilled in the art can also set the stopper 8 obliquely, and fix the stopper 8 on the straight rod through the torsion spring, so that the purpose of setting is to match the stopper 8 with the boss to be similar to the structure of a ratchet and pawl. During the use, when the straight-bar drove dog 8 forward rotation, dog 8 is because the deformation of certain angle of effect of torsional spring to rotate relatively with the bellying, when forward drive dog 8 rotated promptly, dog 8 can't drive the bellying and rotate. When the straight rod is rotated reversely, the stop block 8 can abut against the boss and cannot be staggered mutually, so that the technical effect that the stop block 8 drives the boss to rotate is achieved.

To annular support frame 1 structure, still include two support frame round pin axles 11 in this embodiment, annular support frame 1 includes upper ring body support frame 9 and lower ring body support frame 10, and upper ring body support frame 9 and lower ring body support frame 10 are the arc structure. The ring-shaped structure can be formed when the two ends of the upper ring body support frame 9 and the lower ring body support frame 10 are abutted, a scraper assembly 4 is arranged on the upper ring body support frame 9, the lower ring body support frame 10 is provided with two scraper assemblies 4, the three pipeline assemblies are distributed at intervals, and the central angle between the two adjacent scraper assemblies 4 is 120 degrees. The equal interval in both ends of going up ring body support frame 9 and lower ring body support frame 10 is provided with the inserted block, and is concrete, and each end sets up two inserted blocks, goes up the crisscross distribution of inserted block of ring body support frame 9 and lower ring body support frame 10, goes up two inserted blocks of ring body support frame 9 one end and can insert two inserted block clearances of lower ring body support frame 10 one end for wholly constitute a complete ring shape, the jack has on the inserted block, support frame round pin axle 11 passes the inserted block of going up ring body support frame 9 and lower ring body support frame 10 in proper order. The advantage of this setting is convenient dismantlement, can further reduce the holistic volume of device. When annular support frame 1 is used to needs, only need to place upper ring body support frame 9 in the top of pipeline outer wall, lower ring body support frame 10 is placed in the below of pipeline outer wall, then will go up annular support frame 9 and align with the both ends of lower ring body support frame 10, uses support frame round pin axle 11 to pass the inserted block at last and can realize the fixed effect of upper ring body support frame 9 and lower ring body support frame 10.

As for the feeding device 3, in the present embodiment, the feeding device 3 includes a hand wheel 12, a worm 13, a worm wheel 14, a pressing plate 21, and a screw 17. The hand wheel 12 is fixed in the one end of worm 13, and worm 13 meshes with worm wheel 14, and clamp plate 21 is located worm wheel 14 and is close to one side of scraper subassembly 4, and the middle part of clamp plate 21 has the screw hole, and the middle part and the screw hole threaded connection of lead screw 17, the one end of lead screw 17 have the keyway, and lead screw 17 is fixed in the inner wall of worm wheel 14 through the key-type connection, and clamp plate 21 and scraper subassembly 4 are relatively fixed. When the position of the scraper component 4 needs to be adjusted, a worker only needs to rotate the hand wheel 12 to drive the worm 13 to rotate, the worm 13 drives the worm wheel 14 to rotate, the worm wheel 14 drives the screw rod 17 to rotate, the screw rod 17 rotates to drive the pressing plate 21 to move up and down, and the pressing plate 21 and the scraper component 4 are relatively fixed, so that the pressing plate 21 moves up and down to adjust the distance between the scraper component 4 and the outer wall of the pipeline. The person skilled in the art preferably selects a worm 13 and a worm wheel 14 which can achieve self-locking.

For the doctor assembly 4, in this embodiment, two springs 16 are also included, and the doctor assembly 4 includes a cutter 15, a connecting body and a coupling nut. The cutter 15 is fixed on one side of the connecting body close to the outer wall of the pipeline, and the cutter 15 is used for removing paint. One side of the connector, which is far away from the outer wall of the pipeline, is provided with two connecting columns, the two sides of the pressing plate 21 are provided with connecting holes, the connecting columns penetrate through the connecting holes, one ends of the connecting columns, which penetrate through the connecting holes, are provided with external threads, the connecting columns are in threaded connection with connecting nuts, the connecting columns are used for guiding, and the position of the pressing plate 21 is prevented from deviating. The inner diameter of the spring 16 is larger than that of the connecting hole, the first end of the spring 16 is abutted against one side of the pressing plate 21 close to the cutter 15, and the second end of the spring 16 is abutted against the cutter 15. During the use, when clamp plate 21 moves down, spring 16 compresses to promote cutter 15 and move down, along with clamp plate 21 lasts the downward movement, spring 16 gives the pressure of cutter 15 and improves gradually, increases the cutter 15 and gives the pressure of pipeline outer wall, when cutter 15 takes place to rotate, thereby realizes the technological effect of paint removal. The spring 16 functions as: the cutter 15 can move along the radial direction of the conveying pipeline in the paint removing process, the cutter 15 can be loosened without positive pressure without the spring 16, the paint removing force is not enough, and the spring 16 can provide continuous positive pressure.

In order to reduce the rotational friction, the present embodiment further includes two angular contact ball bearings 19 and two thrust ball bearings 20, the two angular contact ball bearings 19 are fixed at two ends of the worm 13, an inner wall of the thrust ball bearing 20 is fixed at one end of the screw rod 17 penetrating through the threaded hole, one side of the thrust ball bearing 20 is fixed on an inner wall of the annular support frame 1, and the thrust ball bearing 20 can reduce the friction between the screw rod 17 and the annular support frame 1 and can also bear the axial load.

In this embodiment, the annular support frame further includes a fixing frame 18, the inner wall of the annular support frame 1 has a plurality of mounting cavities 22, the mounting cavities 22 have two openings, the positions of the two openings are opposite, and the straight lines where the two openings are located are the same as the axial direction of the annular support frame 1. 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 positioned in the mounting chamber 22, so that other devices can be prevented from touching the structures of the worm wheel 14, the worm 13 and the like to cause damage. One side of the installation cavity 22 close to the outer wall of the pipeline is provided with a plurality of installation through holes, the screw rod 17, the connecting column and the spring 16 penetrate through the installation through holes, the fixing frames 18 are multiple, each opening is provided with one fixing frame 18, the fixing frames 18 are fixed at the openings through screws, the worm 13 penetrates through one fixing frame 18, and the hand wheel 12 is located on the outer side of the fixing frame 18, so that the rotation of workers is facilitated.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims

1. The utility model provides a portable pipeline paint removal grinding device which characterized in that: the pipeline scraper device comprises an annular supporting frame, a pushing device, a feeding device and a scraper assembly, wherein the annular supporting frame is sleeved on the outer wall of a pipeline, a plurality of feeding devices are arranged, the plurality of feeding devices are fixed on the inner wall of the annular supporting frame, the scraper assembly is fixed on the feeding device, the scraper assembly is positioned between the feeding device and the outer wall of the pipeline, the feeding device is used for adjusting 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 abuts against the annular supporting frame, and the pushing device drives the annular supporting frame to rotate;