CN218747113U - Polishing system for inner wall of ultra-long pipe fitting - Google Patents

Abstract

The utility model relates to an overlength pipe fitting inner wall polishing system, include: the automatic shot blasting machine comprises a nozzle part (1), a support part (2), a clamping part (3), a spiral conveying part (4), a lifting part (5), a filtering and purifying part (6), a belt conveying part (7) and a shot blasting part (8), wherein all the parts are sequentially connected to form a closed loop, the support part (2) is connected with the clamping part (3), the nozzle part (1) is driven by a motor to move inside an overlong pipe fitting (3-5) in the clamping part (3), and the output end of the shot blasting part (8) is directly connected with the nozzle part (1) through a high-pressure pipeline. Compared with the prior art, the utility model provides a difficult problem of overlength pipe fitting inner wall polishing, can adapt to the pipe fitting of different diameters and length, have the even and abundant advantage of polishing simultaneously.

Description

Polishing system for inner wall of ultra-long pipe fitting

Technical Field

The utility model belongs to the technical field of the pipe-line working technique and specifically relates to a super long pipe fitting inner wall polishing system is related to.

Background

With the continuous development of physical vapor deposition hard wear-resistant coating technology, the application of the coating is wider and wider. In order to adapt to and meet the continuous pursuit of customers for product quality in the modern mechanical manufacturing industry, higher requirements are put forward for the pretreatment of the coating, particularly for the polishing in the pretreatment, wherein the polishing of the inner wall of the ultra-long pipe fitting is always a difficult problem which is difficult to solve by the industry. The bonding strength between the oxide layer and the corrosion layer on the surface of the workpiece and the substrate is poor. Before the coating treatment, if the oxide layer or the corrosion layer on the inner surface of the overlong pipe fitting is not removed, the coating is easily separated from the surface of the workpiece along with the oxide layer or the corrosion layer under the influence of temperature change and the action of external stress after the coating treatment, and the wear-resisting protection effect on a matrix is lost. Therefore, impurities such as an oxide layer on the inner surface of the ultra-long pipe fitting need to be removed before coating. On the other hand, the surface of most workpieces after being machined has burrs, the burrs are relatively few if the workpieces are machined and the machining parameters are properly selected, when the surface of the workpiece has the burrs, the surface burrs cannot be directly coated, and the surface burrs need to be cleaned, otherwise, the coating directly covers the burrs after being coated. When the workpiece is used, the burrs and the coating on the burrs are easy to fall off, and then the coating on the area around the falling point is quickly worn and cracked in a short time, so that the protective effect on the surface of the workpiece is lost. Therefore, deburring of the workpiece surface has a significant impact on improving the coating quality of the workpiece surface coating. The surface finish of the workpiece has great influence on the bonding strength, the erosion resistance and the high-temperature oxidation resistance of the coating, the surface finish of the workpiece directly influences the growth of the coating, and the properties of the obtained coating are different. For workpieces with a greater surface roughness, the deposition of the coating tends to increase with increasing surface roughness prior to deposition. If the surface roughness of the workpiece is large, the surface bonding force of the coating will be reduced, and the erosion resistance thereof will also be deteriorated. In addition, the surface roughness of the workpiece is large, the fluctuation of the thermally grown oxide layer produced under the high-temperature condition is large, the local thermally grown oxide layer is easily and quickly thickened, the positions where stress concentration occurs are more, and the coating is more easily failed.

Through retrieving Chinese patent CN215903309U, it discloses a stainless steel pipe fitting inner wall burnishing device in stainless steel field, comprises a workbench, the last fixed surface of workstation is connected with two sets of first fixed blocks, two sets of first fixed blocks are two common sliding columns of the common fixedly connected with in a side that is close to each other, the common sliding connection of surface of two sliding columns has the sliding plate, rotating electrical machines has been placed to the top of sliding plate, rotating electrical machines's output rotates and is connected with the connection pad, the left surface fixedly connected with column spinner of connection pad, the outer fixed surface of column spinner is connected with the cover of polishing, through being provided with the ring of placing, realize according to the effect of track removal sliding plate, play and carry out the effect of more even polishing to the stainless steel pipe fitting that needs the polishing. The fine problem of having solved the inner wall polishing of this patent, nevertheless can only be to some shorter pipes, to super long pipe fitting play unable effect, polish the pipe fitting inner wall through rotatory and also have the inhomogeneous problem of polishing, do not have large-scale and be applicable to the grinding and polishing equipment of super long pipe fitting internal surface on the current market, super long pipe fitting length span is great, and will guarantee inside axiality, so great to its surface smoothing processing technique degree of difficulty. However, the inner hole grinding and polishing equipment occupies a large space, has a relatively complex structure and small market demand, is limited by application level and technical conditions, and rarely develops the research and development work of the equipment.

The limitation of the current technical level of the industry is difficult to realize the high-precision and high-finish grinding and polishing treatment of the deep inner hole of the long pipe fitting. Aiming at the defects of the prior art and capacity, the grinding and polishing equipment for the pipe fitting with the large length-diameter ratio needs to be developed, and a grinding and polishing process suitable for the inner surface of the super-long pipe fitting needs to be developed.

Disclosure of Invention

The utility model aims at providing a defect that exists in order to overcome above-mentioned prior art and provide a commonality strong, simple structure, production efficiency are high, and an overlength pipe fitting inner wall polishing system with low costs, realize the high accuracy, the high finish grinding and polishing processing to the dark hole of long pipe fitting.

The purpose of the utility model can be realized by the following technical proposal:

an ultra-long pipe inner wall polishing system, comprising: the polishing device comprises a spray head part 1, a support part 2, a clamping part 3, a spiral conveying part 4, a lifting part 5, a filtering and purifying part 6, a belt conveying part 7 and a shot blasting part 8, wherein all parts are sequentially connected to form a closed loop, the support part 2 is connected with the clamping part 3, an overlong pipe fitting 3-5 to be polished is installed in the clamping part 3, the spray head part 1 is driven by a motor to move inside the overlong pipe fitting 3-5 in the clamping part 3, and the output end of the shot blasting part 8 is directly connected with the spray head part 1 through a high-pressure pipeline.

Further, the nozzle part 1 comprises a frame structure and a nozzle main body, the frame structure comprises a driving wheel 1-2, two groups of supporting rods 1-3, an axle 1-4 and a fastening ring frame 1-6, the nozzle main body is clamped in the fastening ring frame 1-6, one group of supporting rods 1-3 consists of two supporting rods 1-3 which are connected in a crossed mode, the two groups of supporting rods 1-3 are symmetrically distributed on two sides of the nozzle main body, two sides of the fastening ring frame 1-6 are respectively connected with the crossed connection positions of the two groups of supporting rods 1-3, the driving wheel 1-2 driven by a motor is installed at two ends of the supporting rods 1-3, the end portions of the two groups of supporting rods 1-3 are connected through the axle 1-4, and the driving wheel 1-2 is sleeved on the end portions of the axle 1-4.

Further, the spray head main body comprises a spray head interface 1-1 and a spray head 1-5, the spray head interface 1-1 is connected with the output end of the shot blasting part 8 through a high-pressure pipeline, and the spray head interface 1-1 and the spray head 1-5 are connected through a pipeline.

Furthermore, the support part 2 is formed by welding rectangular pipes and comprises a guide rail 2-1, two movable cross beams 2-2 and three fixed cross beams, the guide rail 2-1 is connected with the three fixed cross beams, the movable cross beams 2-2 are arranged between the two fixed cross beams, and the guide rail 2-1 is connected with the movable cross beams 2-2 in a sliding manner.

Further, the clamping portion 3 includes: the polishing device comprises a base 3-1, a cover plate 3-2, fastening bolts 3-3, clamping screws 3-4 and an ultra-long pipe fitting 3-5, wherein the base 3-1 is installed on a support part 2, the cover plate 3-2 is installed on the base 3-1, the fastening bolts 3-3 for fixing the ultra-long pipe fitting 3-5 are installed at the upper part of the cover plate 3-2, the clamping bolts 3-4 for supporting the ultra-long pipe fitting 3-5 are installed at the side part of the cover plate 3-2, and the fastening bolts 3-3 of the clamping part 3 are adjusted to be suitable for polishing treatment of the ultra-long pipe fittings with various outer diameters.

Furthermore, adjustable middle nuts 1-7 are installed at the cross connection positions of the two support rods 1-3 which are connected in a cross mode, the middle nuts 1-7 are adjusted, and the included angle between the two support rods 1-3 is changed, so that the polishing device can be suitable for polishing treatment of ultra-long pipe fittings with various inner diameters.

Further, the spiral conveying part 4 is provided with a closed box body, a group of spiral conveying mechanisms are arranged in the box body, the spiral conveying mechanisms are connected with the lifting part 5, the lifting part 5 comprises a vertical box body and a bucket elevator, and a discharge port of the bucket elevator is directly connected with the filtering and purifying part 6.

Furthermore, the filtering and purifying part 6 comprises a separating device for dedusting, purifying and spraying materials, the belt conveying part 7 consists of a group of belt conveyors and a closed cover, the two ends of each belt conveyor are respectively connected with the filtering and purifying part 6 and the shot blasting part 8, and the shot blasting part 8 is provided with a whole set of shot blasting mechanism.

Furthermore, a circle of fine spray holes are formed in the tops of the spray heads 1-5 of the spray head part 1, so that the polishing homogenization treatment of the inner wall of the ultra-long pipe fitting is realized, and the processing quality of the inner wall of the ultra-long pipe fitting is further ensured.

Furthermore, the sliding connection surface of the guide rail 2-1 of the bracket part 2 and the movable cross beam 2-2 is coated with an aluminum titanium nitride wear-resistant coating, and the wear resistance and the service life of the whole sliding pair are improved by coating a special coating.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses an install motor drive sprinkler head 1 on action wheel 1-2 at the inside motion of overlength pipe fitting, realize the polishing treatment to overlength pipe fitting inner wall, sprinkler head 1, support portion 2, clamping part 3, auger delivery portion 4, lifting unit 5, filtering and purifying portion 6, belt transportation portion 7 and peening portion 8, each connects gradually, forms the closed loop, simple structure, easily operation for polishing material repeatedly usable saves the resource.

2. The utility model discloses an adjust shower nozzle portion 1's middle nut 1-7, change bracing piece 1-3's angle for at the shower nozzle portion 1 of pipe fitting internal motion pipe fitting internal diameter of laminating more, can carry out polishing treatment to the pipe fitting of different internal diameters, extensive applicability is general.

3. The utility model discloses an adjust 3-3 of clamping part 3, carry out the adjustment of elasticity according to the size of actual pipe fitting external diameter, can be applicable to the pipe fitting of different external diameters, realize the polishing treatment to different external diameter pipe fittings, extensive applicability is extensive.

3. The utility model discloses can be according to the difference of actual pipe fitting length, through the movable cross beam 2-2 of adjusting the support portion 2, realize the support to different length pipe fittings to carry out subsequent polishing and handle, the practicality is strong.

4. The utility model provides an overlength pipe fitting 3-5 directly links to each other with auger delivery portion 4, has guaranteed the cleanness of processing environment, has reduced the dust removal pressure in workshop.

5. The utility model discloses an use aluminium titanium nitride wear-resistant coating on the sliding connection face of guide rail 2-1 and movable cross beam 2-2 of support portion 2, increased the wearability of whole sliding connection face, prolonged the life of pipe fitting.

Drawings

Fig. 1 is an isometric view of the present invention;

fig. 2 is an isometric view of the nozzle head (1) of the present invention;

fig. 3-a is an axonometric view of the support part (2) of the invention;

fig. 3-b is a cross-sectional view of the bracket part (2) of the present invention;

FIG. 3-c is the overall structure of the bracket part (2) of the present invention;

fig. 4 is a front view of the bracket part (2) of the present invention;

fig. 5 is an isometric view of the clamping portion (3) of the present invention;

as indicated by the reference numbers in fig. 1:

the device comprises a spray head part (1), a bracket part (2), a clamping part (3), a spiral conveying part (4), a lifting part (5), a filtering and purifying part (6), a belt conveying part (7) and a shot blasting part (8);

as indicated by the reference numbers in fig. 2:

the device comprises a nozzle interface (1-1), a traveling wheel (1-2), a support rod (1-3), an axle (1-4), a nozzle (1-5), a fastening ring frame (1-6), a middle nut (1-7) and an axle nut (1-8);

as indicated by the reference numbers in FIG. 3-b:

a guide rail (2-1) and a movable cross beam (2-2);

as indicated by the reference numbers in fig. 5:

the device comprises a base (3-1), a cover plate (3-2), fastening bolts (3-3), clamping screws (3-4) and an ultra-long pipe fitting (3-5).

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

Examples

As shown in fig. 1 to 5, a polishing system for inner wall of super-long pipe comprises: the device comprises a spray head part, a bracket part, a clamping part, a spiral conveying part, a lifting part, a filtering and purifying part, a belt conveying part and a shot blasting part, wherein all parts are connected in sequence to form a closed loop, and the bracket part is connected with the clamping part; the clamping part is internally provided with an overlong pipe fitting to be polished; the spray head part is driven by a motor to move in the ultra-long pipe fitting in the clamping part, and the output end of the shot blasting part is directly connected with the spray head part through a high-pressure pipeline.

The shower nozzle portion includes frame construction and shower nozzle main part, frame construction includes action wheel, two sets of bracing pieces, axletree and fastening ring frame, and the centre gripping has the shower nozzle main part in the fastening ring frame, and a set of bracing piece comprises two alternately continuous bracing pieces, and two sets of bracing pieces symmetric distribution are in the both sides of shower nozzle main part, and the both sides of fastening ring frame link to each other with the cross connection position of two sets of bracing pieces respectively, installs the both ends at the bracing piece through motor drive's action wheel, and the tip of two sets of bracing pieces passes through the axletree and connects, and the action wheel cup joints the tip at the axletree.

The nozzle body comprises a nozzle interface and a nozzle, the nozzle interface is connected with the output end of the shot blasting part through a high-pressure pipeline, and the nozzle interface is connected with the nozzle through a pipeline.

The support part is formed by welding rectangular pipes and comprises a guide rail, two movable cross beams and three fixed cross beams, the guide rail is connected with the three fixed cross beams, the movable cross beams are arranged between the two fixed cross beams, and the guide rail is connected with the movable cross beams in a sliding mode.

The clamping portion includes: the base is installed on the support portion, the cover plate is installed on the base, the fastening bolt used for fixing the overlong pipe fitting is installed on the upper portion of the cover plate, and the clamping screw used for supporting the overlong pipe fitting is installed on the side portion of the cover plate.

The spiral conveying part is provided with a closed box body, a group of spiral conveying mechanisms are contained in the box body, and the spiral conveying mechanisms are connected with the lifting part; the lifting part comprises a vertical box body and a bucket elevator, and a discharge port of the bucket elevator is directly connected with the filtering and purifying part. The filtering and purifying part comprises a separating device for dedusting, purifying and spraying materials; the belt conveying part consists of a group of belt conveyors and a closed cover, the two ends of each belt conveyor are respectively connected with the filtering and purifying part and the shot blasting part, and the shot blasting part is provided with a whole set of shot blasting mechanism.

When the system works, an overlong pipe fitting is placed on the lower half part of a cover plate by means of hoisting equipment, then the position of the overlong pipe fitting is adjusted, one end of the overlong pipe fitting is inserted into a spiral conveying part, a support part is adjusted according to the length of the overlong pipe fitting, the support part comprises three fixed cross beams and two movable cross beams, and the contact surfaces of the movable cross beams and guide rails are in sliding connection. Through setting up movable beam, can make this system can be applied to the pipe fitting of different length and process, increased its range of application. And then positioning and supporting the workpiece through the clamping screw, and fastening the overlong pipe fitting by using the fastening bolt. After a workpiece is fixed, the spray head part is driven by a motor to uniformly work on the inner wall of the ultra-long pipe fitting, the spray head part is firstly polished from the outermost end of the ultra-long pipe fitting, and polishing materials from the shot blasting part are sprayed to tiny spray heads on the periphery of the spray heads through high-pressure pipelines to polish the inner wall of the pipe fitting. The spray head part advances towards the inner wall of the ultra-long pipe fitting through the traveling wheel to carry out deep polishing treatment. The impact force of the nozzle part can be used for bringing the polishing materials and the impurities under polishing to the spiral conveying part, the polishing materials and the impurities under polishing are conveyed to the lifting part by the spiral conveying mechanism of the spiral conveying part and then enter the filtering and purifying part, the polishing materials and the polishing impurities can be filtered through the filtering and purifying part, the impurities are filtered, and the reusable polishing materials are stored. The filtering and purifying part is connected with the shot blasting part next to the belt conveying part, the filtered polishing materials are conveyed to the shot blasting part through the belt conveying part, the output end of the shot blasting part is directly connected with the spray head part through a high-pressure pipeline, and the polishing materials are conveyed to the spray head part through the high-pressure pipeline again, so that a closed loop is formed. The inner wall of the whole ultra-long pipe fitting can be uniformly polished by bringing the movable wheel of the spray head part into the other end of the ultra-long pipe fitting, and then the movable wheel of the spray head part withdraws from the inner wall of the ultra-long pipe fitting, so that the whole polishing work is completed.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. A system for polishing the inner wall of an ultra-long pipe fitting, comprising: the automatic polishing device comprises a spray head part (1), a support part (2), a clamping part (3), a spiral conveying part (4), a lifting part (5), a filtering and purifying part (6), a belt conveying part (7) and a shot blasting part (8), wherein all the parts are sequentially connected to form a closed loop, the support part (2) is connected with the clamping part (3), an overlong pipe fitting (3-5) to be polished is installed in the clamping part (3), the spray head part (1) is driven to move inside the overlong pipe fitting (3-5) in the clamping part (3) through a motor, and the output end of the shot blasting part (8) is directly connected with the spray head part (1) through a high-pressure pipeline.

2. The polishing system for the inner wall of the ultra-long pipe fitting as claimed in claim 1, wherein the nozzle part (1) comprises a frame structure and a nozzle body, the frame structure comprises a driving wheel (1-2), two groups of support rods (1-3), an axle (1-4) and a fastening ring frame (1-6), the nozzle body is clamped in the fastening ring frame (1-6), one group of support rods (1-3) consists of two support rods (1-3) which are connected in a crossed manner, the two groups of support rods (1-3) are symmetrically distributed on two sides of the nozzle body, two sides of the fastening ring frame (1-6) are respectively connected with the crossed connection positions of the two groups of support rods (1-3), the driving wheel (1-2) driven by a motor is arranged at two ends of the support rods (1-3), the end parts of the two groups of support rods (1-3) are connected through the axle (1-4), and the driving wheel (1-2) is arranged at the end part of the axle (1-4).

3. The system for polishing the inner wall of the overlong pipe fitting as claimed in claim 2, wherein the spray head body comprises a spray head interface (1-1) and a spray head (1-5), the spray head interface (1-1) is connected with the output end of the shot blasting part (8) through a high-pressure pipeline, and the spray head interface (1-1) and the spray head (1-5) are connected through a pipeline.

4. The polishing system for the inner wall of the overlong pipe fitting as claimed in claim 1, wherein the bracket part (2) is formed by welding rectangular pipes and comprises a guide rail (2-1), two movable cross beams (2-2) and three fixed cross beams, the guide rail (2-1) is connected with the three fixed cross beams, the movable cross beams (2-2) are arranged between the two fixed cross beams, and the guide rail (2-1) is connected with the movable cross beams (2-2) in a sliding manner.

5. A system for polishing the inner wall of an ultra-long pipe according to claim 1, wherein the holding portion (3) comprises: the pipe fitting fixing device comprises a base (3-1), a cover plate (3-2), fastening bolts (3-3), clamping screws (3-4) and an ultra-long pipe fitting (3-5), wherein the base (3-1) is installed on a support part (2), the cover plate (3-2) is installed on the base (3-1), the fastening bolts (3-3) used for fixing the ultra-long pipe fitting (3-5) are installed on the upper part of the cover plate (3-2), and the clamping screws (3-4) used for supporting the ultra-long pipe fitting (3-5) are installed on the side part of the cover plate (3-2).

6. The system for polishing the inner wall of the overlong pipe fitting as claimed in claim 2, wherein the cross-connection position of the two cross-connected supporting rods (1-3) is provided with an adjustable middle nut (1-7).

7. The polishing system for the inner wall of the overlong pipe fitting as claimed in claim 1, wherein the spiral conveying part (4) is provided with a closed box body, a group of spiral conveying mechanisms are contained in the box body, the spiral conveying mechanisms are connected with the lifting part (5), the lifting part (5) comprises a vertical box body and a bucket elevator, and a discharge port of the bucket elevator is directly connected with the filtering and purifying part (6).

8. The system for polishing the inner wall of the overlong pipe fitting as claimed in claim 1, wherein the filtering and purifying part (6) comprises a separating device for removing dust and purifying spray materials, the belt conveying part (7) comprises a group of belt conveyors and a closed cover, the two ends of each belt conveyor are respectively connected with the filtering and purifying part (6) and the shot blasting part (8), and the shot blasting part (8) is provided with a whole set of shot blasting mechanisms.

9. The system for polishing the inner wall of the ultra-long pipe fitting as claimed in claim 3, wherein the top of the spray head (1-5) of the spray head part (1) is provided with a circle of fine spray holes.

10. The system for polishing the inner wall of the overlong pipe fitting as claimed in claim 4, wherein the sliding connection surfaces of the guide rail (2-1) of the bracket part (2) and the movable cross beam (2-2) are coated with an aluminum titanium nitride wear-resistant coating.

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