CN209810510U

CN209810510U - Spraying device for inner and outer long-distance pipelines

Info

Publication number: CN209810510U
Application number: CN201920231297.0U
Authority: CN
Inventors: 徐雨田; 李松梅
Original assignee: Qingdao University of Science and Technology
Current assignee: Qingdao University of Science and Technology
Priority date: 2019-02-25
Filing date: 2019-02-25
Publication date: 2019-12-20
Anticipated expiration: 2029-02-25

Abstract

The utility model relates to an inside and outside long distance pipeline spraying device, include: an inner spraying device, an outer spraying device and a pipeline; the inner spray coating device comprises: the device comprises an internal power device, an internal motion device, an internal spray nozzle device, an internal guide device, an internal support, a stepped shaft I, a gear I, a belt wheel II, a belt I, a bevel gear I, a motor I, a conical stepped shaft, a stepped shaft II, a gear II, tires, a bevel gear shaft, an internal spray nozzle, an internal guide support and an internal guide wheel; the outer spraying device includes: the automatic spraying device comprises an outer power device, an outer rotating device, an outer linear motion device, an outer spray head device, a stepped shaft III, a gear III, a bevel gear II, a motor II, a stepped shaft IV, a bevel gear III, a belt wheel III, a stepped shaft V, a belt wheel IV, a friction wheel I, a belt III, a stepped shaft VI, a friction wheel II, a stepped shaft VI, a gear IV, a belt wheel IV, a stepped shaft VII, a belt wheel V and a flat belt.

Description

Spraying device for inner and outer long-distance pipelines

Technical Field

The invention relates to the field of paint spraying, in particular to a spraying device for an internal and external long-distance pipeline.

Background

At present, in the field of paint spraying, manual and simple spray heads are often utilized for spraying, in long-distance pipeline spraying, manual spraying is difficult, spraying time is long, and a spraying machine is not high in precision due to overlong length, can only perform inner spraying or outer spraying, cannot finish the inner spraying or the outer spraying through the same equipment, and has the defects that the pipeline is difficult to move after spraying.

In order to overcome the difficulties, the invention provides an internal and external long-distance pipeline spraying device which has the advantages of long-distance pipeline spraying, internal and external spraying, high spraying efficiency, convenience in pipeline placement and movement and the like.

Disclosure of Invention

The invention aims to solve the problem of how to realize long-distance pipeline spraying, internal and external spraying and high spraying efficiency.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the invention relates to an internal and external long-distance pipeline spraying device, which comprises: an inner spraying device, an outer spraying device and a pipeline; the inner spraying device is horizontally placed in the inner cavity of the pipeline, and is guided by the inner guiding device through the horizontal movement of four tires in the inner spraying device along the inner cavity of the pipeline; the pipeline is of a long-distance large-diameter structure, two ends of the pipeline are respectively provided with a shaft section with the same inner diameter as the middle section, the outer diameter of the shaft section is smaller than that of the middle section, the length of the shaft section is the same as that of a friction wheel I in the external spraying device, and the two shaft sections are respectively placed on the friction wheel I and the friction wheel II in the external spraying device and are axially positioned through shaft shoulders; the outer spraying device is connected with the ground through a bearing seat and a foundation bolt; when the inner spray painting is carried out, the outer spray painting device is not moved, a motor I in the inner spray painting device drives a tire to rotate, so that the inner spray painting device is driven to move forwards in the inner cavity of the pipeline, the inner spray painting device is driven to rotate at the same time, the two motions are combined, the spray painting is carried out by opening the spray painting head, and the inner spray painting of the pipeline is completed; when spraying paint outward, will interior spraying device follow shift out in the pipeline inner chamber, motor II rotates, drives friction pulley I and rotates to the drive the pipeline rotates, drives the flat band simultaneously and rotates, drives outer shower nozzle device rectilinear movement then, and two kinds of motion synthesis open the shower nozzle and spray paint, accomplish the pipeline sprays paint outward.

Further, the inner spray coating device comprises: the inner power device, the inner motion device, the inner spray head device, the inner guide device and the inner support; the internal power device is driven by a motor I, a gear I in the internal power device is meshed with gears II in the two sets of internal motion devices, and a bevel gear I in the internal power device is meshed with a bevel gear section in a bevel gear shaft in the internal spray head device; the two sets of internal moving devices are respectively positioned at the front side and the rear side of the internal power device; the inner guide device is connected with a bevel gear shaft in the inner spray head device through a shaft sleeve in an inner guide support, lubricating oil is filled inside and outside the shaft sleeve, and an inner guide wheel in the inner guide device is positioned between the inner power device and the inner moving device on the front side; the inner power device and outer rings of rolling bearings in the two sets of inner motion devices at the front side and the rear side are fixed together by the inner support, the inner motion device at the rear side and outer rings of rolling bearings in the inner spray head device are fixed together by the inner support, a stepped shaft I in the inner power device and an outer ring of rolling bearings on a conical stepped shaft are fixed together by the inner support, an inner guide support in the inner guide device is fixed on the inner support, two ends of the inner support are semicircular rings, the semicircular rings are connected by welding I-shaped steel, the inner radius of each circular ring is equal to the outer radius of the fixed outer ring of the bearing, the curved surface side at the bottom of each semicircular ring is welded with a rectangular plate, threaded holes are drilled in the rectangular plate, and the rectangular plate is connected with the corresponding semicircular ring rectangular plate in the inner support by; when a motor I in the inner power device rotates, a gear I in the inner motion device is driven to rotate, so that a gear II is driven to rotate, then a tire is driven to rotate, meanwhile, a bevel gear I in the inner power device rotates, a bevel gear shaft in the inner spray head device is driven to rotate, so that the inner spray head is driven to rotate, the inner guide device is fixed on the inner support and moves along with the tire in a straight line, and relative rotation is avoided.

Further, the internal power device comprises: the device comprises a stepped shaft I, a gear I, a belt wheel II, a belt I, a bevel gear I, a motor I and a conical stepped shaft; the gear I is a straight-tooth cylindrical gear, the gear I is axially positioned through a shaft collar of the stepped shaft I and is circumferentially positioned through a key, the other side of the gear I is pressed through double nuts, and the double nuts are connected with the stepped shaft I through threads on the section of the gear I on the stepped shaft I; the belt wheel I is positioned on one side, away from the gear I, of the shaft ring on the stepped shaft I, and is axially positioned through a shaft ring, the shaft ring is positioned through a shaft shoulder, and the belt wheel I is circumferentially positioned through a key; the outermost shaft ends at two ends of the stepped shaft I are fixed with the inner support through rolling bearings, the belt wheel I is axially connected with the rolling bearing at one side through a shaft sleeve, the rolling bearing at the other side is connected with a shaft shoulder through the shaft sleeve, the inner ring of the rolling bearing is tightly pressed by an end cover, and the outer side of the end cover is connected to the inner support; the motor I is connected with the shaft end of one side of the stepped shaft, which is far away from the belt wheel I, through a coupler; the belt wheel II is positioned at one shaft section on the outermost side of the conical stepped shaft, the axial direction of the belt wheel II is positioned through the shaft shoulder of the conical stepped shaft, the other side of the belt wheel II is tightly pressed through an end cover and is positioned through a key in the circumferential direction, the belt wheel I and the belt wheel II are completely identical, the conical stepped shaft is positioned right above the stepped shaft I, the two axes of the conical stepped shaft are parallel, the outer end faces of the belt wheel I and the belt wheel II are positioned in the same plane, the belt wheel I and the belt wheel II are connected through two belts I, the belts I are V belts, and the belt wheel I and the belt wheel II are V belt wheels; the bevel gear I is positioned at the other outermost side of the tapered stepped shaft, is axially positioned through a shaft sleeve, is axially positioned through a shaft shoulder, is circumferentially positioned through a key, and is pressed by an end cover at one side far away from the shaft collar; the bevel stepped shaft is fixed on the inner support through an outer ring of a rolling bearing, the two rolling bearings are connected through a shaft sleeve, one rolling bearing is connected with the bevel gear I through a shaft sleeve, and the inner ring of the other rolling bearing is positioned through a shaft ring; when the motor I rotates, the stepped shaft I is driven to rotate, then the gear I is driven to rotate, and meanwhile the belt wheel I is driven to rotate, so that the two belts I are driven to rotate, then the belt wheel II is driven to rotate, the conical stepped shaft is driven to rotate, and finally the bevel gear I is driven to rotate.

Further, the inner moving device has two sets, which are divided into a front side and a rear side, and the direction of the inner spraying device is taken as a standard, and the inner moving device comprises: a stepped shaft II, a gear II and a tire; the gear II is a straight-tooth cylindrical gear, is axially positioned through a shaft collar of the stepped shaft II and is circumferentially positioned through a key; the diameter of the two tires is equal to the addendum circle diameter of the gear I, so that the gear I is prevented from interfering with the inner wall of the pipeline, the tires are respectively arranged on two outermost shaft sections of the stepped shaft II, the tires are axially positioned through shaft sleeves and circumferentially positioned through keys, and the outer sides of the tires are tightly pressed through end covers; the stepped shaft II is tightly matched and fixed with the inner support through an outer ring of a rolling bearing, one sides of the two rolling bearings, which are close to the shaft collar, are connected with the shaft shoulder through a shaft sleeve, and the other sides of the two rolling bearings are respectively pressed by two spring retainer rings; when the gear I in the internal power device rotates, the gear II is driven to rotate, then the stepped shaft II is driven to rotate, and finally the two tires are driven to rotate.

Further, the inner spray head device comprises: the bevel gear shaft is a hollow shaft, and the axis of the bevel gear shaft is superposed with the axis of the pipeline and is positioned right above the inner movement device at the rear side; the inner spray head is of a cylindrical pipe structure, the inner diameter of the inner spray head is equal to the diameter of the shaft end of the bevel gear shaft far away from the bevel gear section on the outermost side, one end of the inner spray head is welded with a circular plate, the circular plate inwards cuts three rectangular grooves from the outer circle, the rectangular grooves are evenly distributed according to 120 degrees, the depth of each rectangular groove and the radius of the inner cavity of the pipeline are smaller than the outer diameter of the pipeline, after welding, the inner surface of the circular plate is used as a reference surface, the bottom of each rectangular groove is used as an axis, the rectangular groove rotates 30 degrees in the direction of the bevel gear shaft, three triangular grooves with the width of each rectangular groove as high are correspondingly cut off, the inclined surface of each triangular groove is perpendicular to the inclined surface of each triangular groove, the geometric center is used as an axis, three through holes are correspondingly cut, the axis of each through hole is used, sealing with a rubber ring and fixing with a bolt; the bevel gear shaft is fixed with the inner support through an outer ring of a rolling bearing, two sides of one rolling bearing are fixed through spring washers, one side of the other rolling bearing is positioned through a shaft shoulder, and the other side of the other rolling bearing is tightly pressed through the spring washers; and a bevel gear I in the internal power device rotates to drive the bevel gear shaft to rotate, so that the internal spray head is driven to rotate, and the spraying of one circle in the inner cavity of the pipeline is realized.

Further, the inner guide device comprises: the inner guide support is composed of a solid long cylindrical rod and three solid long cylindrical rods, the material is carbon steel, one end of the long cylindrical rod is provided with a conical hole along the axis, a cylindrical hole is formed in the small end face of the conical hole, the cylindrical hole is drilled to be perpendicular to the cylindrical hole and is connected with the outside, the drilled upper thread is connected with an external paint pipe, the long cylindrical rod is connected with the conical gear shaft in the inner spray head device through a shaft sleeve in a circular hole, the outer side of the shaft sleeve is processed into a Morse taper surface, a through hole is drilled in the axis of the end face, the diameter of the through hole is equal to the diameter of the through hole of the long cylindrical rod in the inner guide support, lubricating oil and sealing rings are arranged inside and outside the shaft sleeve, the three long cylindrical rods are welded on the other side of the long cylindrical rod and are evenly distributed according to 120 degrees of the circumference, the length of the three long cylindrical rods is equal to the radius of the pipeline minus the radius of the guide wheel, and two rectangular plates with the length smaller than, processing a through hole at the bottom of the rectangular plate; the outer ring of the inner guide wheel is made of rubber and has elasticity, the inner guide wheel is made of carbon steel, a cylindrical support is welded on the axis, the diameter of the cylindrical support is equal to that of a through hole at the bottom of the rectangular plate, the cylindrical support on the inner guide wheel is inserted into the through hole of the rectangular plate and is in clearance fit with the through hole, and the inner guide wheel is positioned between the two rectangular plates; when the inner spray head device rotates, the inner guide support in the inner guide device is fixed on the inner support and does not rotate, when the inner spray device moves forwards, the three inner guide wheels roll forwards along three different directions along the inner cavity of the pipeline, and the elastic structure compensates displacement and angle errors and ensures that the inner spray device moves forwards along a straight line.

Further, the external spray coating device includes: the device comprises an outer power device, an outer rotating device, an outer linear motion device and an outer spray head device, wherein a bevel gear II in the outer power device is meshed with a bevel gear III in the outer rotating device; a gear III in the outer power device is meshed with a gear IV in the outer linear motion device; the outer spray head device base is arranged on a flat belt in the outer linear motion device through a bolt; when a motor II in the outer power device rotates, a bevel gear II rotates to drive a bevel gear III in the outer rotating device to rotate, so that a friction wheel I and a friction wheel II are driven to rotate, the aim of rotating the pipeline is finally achieved, the pipeline is convenient to place and move, meanwhile, a gear III in the outer power device rotates to drive a gear IV in the outer linear motion device to rotate, a flat belt is driven to rotate, and the outer spray head device and the pipeline are finally moved linearly in parallel.

Further, the outer power unit includes: the device comprises a stepped shaft III, a gear III, a bevel gear II and a motor II; the gear III is a straight-tooth cylindrical gear, is axially positioned through a shaft shoulder and is circumferentially positioned through a key; the bevel gear II is positioned at the outermost shaft section of the gear III, which is far away from the stepped shaft III, and is axially positioned through a shaft shoulder and circumferentially positioned through a key; the motor II is connected with the outermost shaft end, close to the gear III, on the stepped shaft III through a coupler; the stepped shaft III is connected with the ground through a bearing seat; the motor II drives the stepped shaft III, the gear III and the bevel gear II to rotate; the outer rotating device includes: the bevel gear III is positioned at the outermost shaft section of the stepped shaft IV, is axially positioned through a shaft shoulder and is circumferentially positioned through a key, and the stepped shaft IV is connected with the ground through a bearing seat; the belt wheel III is positioned at the other outermost shaft section of the stepped shaft IV, is axially positioned through a shaft shoulder and is circumferentially positioned through a key, and the other side of the belt wheel III is tightly pressed by an end cover; the stepped shaft V, the belt wheels IV and the friction wheels I are combined into a group, the shape of the belt wheels IV is completely the same as that of the belt wheels III, the belt wheels IV are positioned at the outermost shaft section of the stepped shaft V, the axial direction of the belt wheels IV is positioned through a shaft shoulder, the circumferential direction of the belt wheels IV is positioned through a key, the other side of the belt wheels IV is pressed by an end cover, the other side of the friction wheels I is positioned at the other outermost shaft section of the stepped shaft V, the axial direction of the friction wheels I is positioned through a shaft shoulder, the circumferential direction of the friction wheels I is positioned through a key, the axial lines of the two stepped shafts V are parallel to the axial line of the pipeline and are symmetrically distributed at the two sides of the axial line at the bottom of the pipeline, one side of the outside of the pipeline is placed on the two friction wheels I, the axial lines of the stepped shaft IV and the two stepped shafts V are parallel through the outer shaft shoulder, the step shaft IV is positioned under one step shaft V close to the outer linear motion device, the two belts III are V-belts and are arranged on the belt wheel III and the two belt wheels IV, and the two step shafts V are connected with the ground through bearing seats; the friction wheel II is positioned at the other outermost shaft section of the stepped shaft VI, is axially positioned through a shaft shoulder and is circumferentially positioned through a key, the other side of the friction wheel II is tightly pressed by an end cover, the axes of the two stepped shafts VI are parallel to the axis of the pipeline, the height of the axes is the same as that of the two stepped shafts V, the axes are symmetrically distributed on two sides of the axis at the bottom of the pipeline, and the other side of the outside of the pipeline is placed on the two friction wheels II and is positioned through the shaft shoulder outside the pipeline; when the bevel gear III rotates, the step shaft IV and the belt wheel III are driven to rotate, so that the belt III is driven to rotate, then the two belt wheels IV are driven to rotate, then the two step shafts V and the two friction wheels I are driven to rotate, finally the pipeline is driven to rotate, the friction wheels II have no main power and rotate along with the pipeline, and the two step shafts VI are connected with the ground through bearing seats.

Further, the outer linear motion device includes: the gear IV is a straight toothed spur gear, the gear IV is positioned on a shaft section of the stepped shaft VIII on one side close to a shaft collar, the gear IV is positioned axially through the shaft collar of the stepped shaft VIII and circumferentially through a key, and the gear IV is meshed with the gear III in the external power device; the belt wheel VI is positioned on the shaft section on the other side close to the shaft collar, is positioned through the shaft collar in the axial direction and is positioned through a key in the circumferential direction; the stepped shafts VII and the belt wheels V form one set, the two sets are provided, the appearance of the belt wheels V is completely the same as that of the belt wheels VI, the belt wheels V are positioned on the shaft section close to one side of a shaft collar, are axially positioned through the shaft collar of the stepped shaft VII and are circumferentially positioned through keys, the two stepped shafts VII are respectively parallel to the axis of a stepped shaft IV of the outer rotating device, one stepped shaft VII is as high as the stepped shaft VIII, the other stepped shaft VII is positioned between the stepped shaft VII and the stepped shaft VIII and is lower than the stepped shaft VII and the stepped shaft VIII, the outer sides of the belt wheels V on the stepped shaft VIII and the outer sides of the belt wheels V on the two stepped shafts VII are positioned in one plane, and the inner sides of the belt wheels V are also positioned in the same plane; the flat belt is a steel wire belt, the belt width is equal to the width of the belt wheels V and VI, the flat belt is arranged on the belt wheels VI and the two belt wheels V, the moving direction of the flat belt is parallel to the axis of the pipeline, and the middle stepped shaft VII plays a role in tensioning; when the gear IV rotates, the stepped shaft VIII and the belt wheel VI are driven to rotate, so that the flat belt is driven to rotate, and the belt wheel V rotates along with the flat belt, so that the supporting and tensioning effects are realized.

Furthermore, the lower portion of the outer nozzle device is a cuboid, two cylindrical pipes are connected to the rear portion of the outer nozzle device and serve as connecting pipes, a pressure paint pipe is connected to each connecting pipe, the two cylindrical pipes are welded to the upper surface of the cuboid and serve as nozzles, two holes drilled in the cuboid are connected with the two cylindrical pipes respectively, the lower surface of the cuboid is connected to the flat belt of the outer linear motion device through bolts, the nozzles face the pipeline, and the outer nozzle device follows the flat belt of the outer linear motion device to move linearly.

The invention has the beneficial effects that: in an experiment, when inner spray painting is carried out, the outer spray painting device is not moved, the motor I in the inner spray painting device drives the tire to rotate, so that the purpose that the inner spray painting device moves forwards in the inner cavity of the pipeline is achieved, the inner spray painting device is driven to rotate at the same time, the purpose that the inner cavity of the pipeline is sprayed in a circle is achieved, the two motions are combined, the spray painting is carried out by opening the spray head, the purpose that the inner cavity of the pipeline is sprayed with paint is achieved, the two motions are linked, the spray painting route can be controlled more easily and accurately, missing painting and recoating are prevented, the purpose of high-quality spray painting is achieved, the inner spray painting of the long-distance pipeline is carried out by using the single spray painting device, and the problem that the distribution of the coating thickness is not uniform; when spraying paint outward, will interior spraying device follows shift out in the pipeline inner chamber, motor II rotates, drives friction pulley I rotates, realizes driving pipeline pivoted purpose drives the flat band simultaneously rotates, realizes driving outer shower nozzle device rectilinear movement's purpose, and two kinds of motion synthesis open the shower nozzle and spray paint, realize the purpose that the pipeline sprays paint outward to can be easier more accurate control spraying route, prevent to miss and scribble again, realize the purpose of high quality spraying.

Drawings

FIG. 1: the invention relates to a front view of a spraying device for an internal and external long-distance pipeline;

FIG. 2: the invention relates to a front view of an inner spraying device of an inner and outer long-distance pipeline spraying device;

FIG. 3: the invention relates to a top view of an inner spraying device of an inner and outer long-distance pipeline spraying device;

FIG. 4: the invention relates to a local view of an internal and external long-distance pipeline spraying device;

FIG. 5: the invention relates to a local view of an internal and external long-distance pipeline spraying device;

FIG. 6: the invention relates to a local view of an internal and external long-distance pipeline spraying device;

FIG. 7: the invention relates to a local view of an internal and external long-distance pipeline spraying device;

FIG. 8: the invention relates to a front view of an external spraying device of an internal and external long-distance pipeline spraying device;

FIG. 9: the invention relates to a local view of an internal and external long-distance pipeline spraying device;

FIG. 10: the invention relates to a local view of an internal and external long-distance pipeline spraying device;

FIG. 11: the invention relates to a local view of an internal and external long-distance pipeline spraying device;

FIG. 12: the invention relates to a local view of an internal and external long-distance pipeline spraying device;

in the figure: 1-inner spray device, 2-outer spray device, 3-pipeline, 11-inner power device, 12-inner motion device, 13-inner spray head device, 14-inner guide device, 15-inner support, 111-stepped shaft I, 112-gear I, 113-pulley I, 114-pulley II, 115-belt I, 116-bevel gear I, 117-motor I, 118-conical stepped shaft, 121-stepped shaft II, 122-gear II, 123-tire, 131-bevel gear shaft, 132-inner spray head, 141-inner guide support, 142-inner guide wheel, 21-outer power device, 22-outer rotation device, 23-outer linear motion device, 24-outer spray head device, 211-stepped shaft III, 212-gear III, 213-bevel gear II, 214-motor II, 221-stepped shaft IV, 222-bevel gear III, 223-pulley III, 224-stepped shaft V, 225-pulley IV, 226-friction wheel I, 227-belt III, 228-stepped shaft VI, 229-friction wheel II, 231-stepped shaft VIII, 232-gear IV, 233-pulley VI, 234-stepped shaft VII, 235-pulley V and 236-flat belt.

Detailed Description

Specific implementations of the present invention are further described below in conjunction with the following figures.

As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12, an inner and outer long distance pipe coating apparatus comprising: an inner spraying device 1, an outer spraying device 2, a pipeline 3, an inner power device 11, an inner motion device 12, an inner spray head device 13, an inner guide device 14, an inner bracket 15, a stepped shaft I111, a gear I112, a belt wheel I113, a belt wheel II114, a belt I115, a bevel gear I116, a motor I117, a tapered stepped shaft 118, a stepped shaft II121, a gear II122, a tire 123, a bevel gear shaft 131, an inner spray head 132, an inner guide bracket 141 and an inner guide wheel 142, the outer power device 21, the outer rotating device 22, the outer linear motion device 23, the outer spray head device 24, the stepped shaft III211, the gear III212, the bevel gear II213, the motor II214, the stepped shaft IV221, the bevel gear III222, the belt wheel III223, the stepped shaft V224, the belt wheel IV225, the friction wheel I226, the belt III227, the stepped shaft VI228, the friction wheel II229, the stepped shaft VIII231, the gear IV232, the belt wheel IV233, the stepped shaft VII234, the belt wheel V235 and the flat belt 236, wherein the inner spraying device 1 is installed as follows: the internal power device 11 is driven by the motor I117, the gear I112 in the internal power device 11 is meshed with the gears II122 in the two sets of internal motion devices 12, and the bevel gear I116 in the internal power device 11 is meshed with the bevel gear section in the bevel gear shaft 131 in the internal spray head device 13; two sets of the internal motion devices 12 are respectively positioned at the front side and the rear side of the internal power device 11; the inner guide device 14 is connected with the bevel gear shaft 131 in the inner spray head device 13 through a shaft sleeve in the inner guide bracket 141, lubricating oil is filled inside and outside the shaft sleeve, and the inner guide wheel 142 in the inner guide device 14 is positioned between the inner power device 11 and the front inner movement device 12; the inner power device 11 and the outer ring of the rolling bearing in the front and rear inner motion devices 12 are fixed together by the inner support 15, the rear inner motion device 12 and the outer ring of the rolling bearing in the inner spray head device 13 are fixed together by the inner support 15, the stepped shaft I111 in the inner power device 11 and the outer ring of the rolling bearing on the tapered stepped shaft 118 are fixed together by the inner support 15, the inner guide support 141 in the inner guide device 14 is fixed on the inner support 15, both ends of the inner support 15 are semicircular rings, the semicircular rings are connected by welding I-shaped steel, the inner radius of each circular ring is equal to the outer radius of the fixed outer ring of the bearing, the curved surface side of the bottom of each semicircular ring is welded with a rectangular plate, threaded holes are drilled on the rectangular plate, and the rectangular plate corresponding to the semicircular rings in the inner support 15 is connected by bolts; the external spraying device 2 is specifically installed as follows: the bevel gear II213 in the external power unit 21 meshes with the bevel gear III222 in the external turning unit 22; the gear III212 in the external power device 21 is meshed with the gear IV232 in the external linear motion device 23; the outer spray head assembly 24 base is bolted to the flat belt 236 in the outer linear motion assembly 23; two ends of the pipeline 3 are respectively provided with a shaft section with the same inner diameter as the middle section, the same outer diameter as the middle section and the same length as the friction wheel I226 in the external spraying device 2, the two shaft sections are respectively placed on the friction wheel I226 and the friction wheel II229 in the external spraying device 2, and the internal spraying device 1 is horizontally placed in the inner cavity of the pipeline 3 through shaft shoulder positioning.

As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12, one way of operating the inner and outer long distance pipe spray coating device is: when the motor I117 in the internal power device 11 rotates, the external spraying device 2 is not moved, and the gear I112 in the internal motion device 12 is driven to rotate, so as to drive the gear II122 to rotate, and then the tire 123 is driven to rotate, meanwhile, the bevel gear I116 in the internal power device 11 is rotated, so as to drive the bevel gear shaft 131 in the internal spray head device 13 to rotate, so as to drive the spray head 132 to rotate, and the internal guiding device 14 is fixed on the internal support 15 to move straight along with the tire 123 without rotating; when the motor II214 in the external power device 21 rotates, the internal spraying device is taken out from the pipeline 3, the bevel gear II213 rotates to drive the bevel gear III222 in the external rotation device 22 to rotate, so as to drive the friction wheel I226 and the friction wheel II229 to rotate, and finally achieve the purpose of rotating the pipeline 3, and simultaneously the gear III212 in the external power device 21 rotates to drive the gear IV232 in the external linear motion device 23 to rotate, so as to drive the flat belt 236 to rotate, and finally achieve the parallel linear motion of the external spray head device 24 and the pipeline 3 axis.

The scope of the present invention is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present invention will be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. The utility model provides an inside and outside long distance pipeline spraying device which characterized in that includes: the device comprises an inner spraying device (1), an outer spraying device (2) and a pipeline (3); the inner spraying device (1) is horizontally placed in the inner cavity of the pipeline (3), and is guided by an inner guide device (14) through horizontal movement of four tires (123) in the inner spraying device (1) along the inner cavity of the pipeline (3); the pipeline (3) is of a long-distance large-diameter structure, two ends of the pipeline (3) are respectively provided with a shaft section with the same inner diameter as the middle section, the outer diameter of the shaft section is smaller than that of the middle section, the length of the shaft section is the same as that of a friction wheel I (226) in the external spraying device (2), and the two shaft sections are respectively placed on the friction wheel I (226) and a friction wheel II (229) in the external spraying device (2) and are axially positioned through shaft shoulders; the outer spraying device (2) is connected with the ground through a bearing seat and a foundation bolt; when the inner spray painting is carried out, the outer spray painting device (2) is not moved, a motor I (117) in the inner spray painting device (1) drives a tire (123) to rotate, so that the inner spray painting device is driven to move forwards in the inner cavity of the pipeline (3), meanwhile, an inner spray head device (13) is driven to rotate, the two motions are combined, the spray heads are opened to carry out spray painting, and the inner spray painting of the pipeline (3) is completed; when the outer paint spraying is carried out, the inner spraying device (1) is moved out of the inner cavity of the pipeline (3), the motor II (214) rotates to drive the friction wheel I (226) to rotate, so that the pipeline (3) is driven to rotate, meanwhile, the flat belt (236) is driven to rotate, then, the outer spray head device (24) is driven to move linearly, the two motions are combined, the spray head is opened to spray the paint, and the outer paint spraying of the pipeline (3) is completed.

2. The spray coating device for long distance pipes inside and outside of claim 1, wherein: the inner spray device (1) comprises: the device comprises an internal power device (11), an internal movement device (12), an internal spray head device (13), an internal guide device (14) and an internal support (15); the internal power device (11) is driven by a motor I (117), a gear I (112) in the internal power device (11) is meshed with gears II (122) in the two sets of internal motion devices (12), and a bevel gear I (116) in the internal power device (11) is meshed with a bevel gear section in a bevel gear shaft (131) in the internal spray head device (13); two sets of the internal motion devices (12) are respectively positioned at the front side and the rear side of the internal power device (11); the inner guide device (14) is connected with a bevel gear shaft (131) in the inner spray head device (13) through a shaft sleeve in an inner guide support (141), lubricating oil is filled inside and outside the shaft sleeve, and an inner guide wheel (142) in the inner guide device (14) is positioned between the inner power device (11) and the inner moving device (12) on the front side; the inner power device (11) and the outer rings of the rolling bearings in the front and rear inner motion devices (12) are fixed together by the inner support (15), the rear inner motion device (12) and the outer rings of the rolling bearings in the inner spray head device (13) are fixed together by the inner support (15), the stepped shaft I (111) in the internal power device (11) and the rolling bearing outer ring on the cone stepped shaft (118) are fixed together by the internal support (15), an inner guide bracket (141) in the inner guide device (14) is fixed on the inner bracket (15), both ends of the inner support (15) are semicircular rings, the semicircular rings are connected by welding I-shaped steel, the inner radius of the circular rings is equal to the outer radius of the fixed bearing outer ring, the curved surface side of the bottom of the semicircular rings is welded with a rectangular plate, threaded holes are drilled on the rectangular plate, the rectangular plates are connected with the rectangular plates on the corresponding semicircular rings in the inner support (15) through bolts; when a motor I (117) in the inner power device (11) rotates, a gear I (112) in the inner motion device (12) is driven to rotate, so that a gear II (122) is driven to rotate, and then a tire (123) is driven to rotate, meanwhile, a bevel gear I (116) in the inner power device (11) rotates, a bevel gear shaft (131) in the inner spray head device (13) is driven to rotate, so that an inner spray head (132) is driven to rotate, and the inner guide device (14) is fixed on the inner support (15) to move straight along with the tire (123) without relative rotation.

3. The inside and outside long distance pipeline spray coating device of claim 2, wherein: the internal power unit (11) includes: a stepped shaft I (111), a gear I (112), a belt wheel I (113), a belt wheel II (114), a belt I (115), a bevel gear I (116), a motor I (117) and a conical stepped shaft (118); the gear I (112) is a straight toothed spur gear, the gear I (112) is axially positioned through a shaft collar of the stepped shaft I (111) and is circumferentially positioned through a key, the other side of the gear I (112) is pressed through double nuts, and the double nuts are connected with the stepped shaft I (111) through threads on the section of the gear I (112) on the stepped shaft I (111); the belt wheel I (113) is positioned on one side, away from the gear I (112), of the shaft ring on the stepped shaft I (111) and is axially positioned through a shaft ring, the shaft ring is positioned through a shaft shoulder, and the belt wheel I (113) is circumferentially positioned through a key; the outermost shaft ends at two ends of the stepped shaft I (111) are fixed with the inner support (15) through rolling bearings, the belt wheel I (113) is axially connected with the rolling bearing at one side through a shaft sleeve, the rolling bearing at the other side is connected with a shaft shoulder through the shaft sleeve, the inner ring of the rolling bearing is tightly pressed by an end cover, and the outer side of the end cover is connected to the inner support (15); the motor I (117) is connected with the shaft end of one side, far away from the belt wheel I (113), of the stepped shaft through a coupler; the belt wheel II (114) is located at one shaft section at the outermost side of the conical stepped shaft (118), the belt wheel II (114) is axially located through a shaft shoulder of the conical stepped shaft (118), the other side of the belt wheel II is tightly pressed through an end cover, the belt wheel I (113) and the belt wheel II (114) are located through a key in the circumferential direction, the conical stepped shaft (118) is located right above the stepped shaft I (111), the two axes of the conical stepped shaft are parallel, the outer end faces of the belt wheel I (113) and the belt wheel II (114) are located in the same plane, the belt wheel I (113) and the belt wheel II (114) are connected through two belts I (115), the belt I (115) is a V belt, and the belt wheel I (113) and the belt wheel II (114) are V belt wheels; the bevel gear I (116) is positioned at the other outermost side of the conical stepped shaft (118), and is axially positioned through a shaft sleeve, the shaft sleeve is axially positioned through a shaft shoulder, the bevel gear I (116) is circumferentially positioned through a key, and one side, far away from the shaft collar, of the bevel gear I (116) is pressed tightly through an end cover; the tapered stepped shaft (118) is fixed on the inner support (15) through an outer ring of a rolling bearing, the two rolling bearings are connected through a shaft sleeve, one rolling bearing is connected with the bevel gear I (116) through a shaft sleeve, and the inner ring of the other rolling bearing is positioned through a shaft ring; when the motor I (117) rotates, the stepped shaft I (111) is driven to rotate, the gear I (112) is driven to rotate, the belt wheel I (113) is driven to rotate, the two belts I (115) are driven to rotate, the belt wheel II (114) is driven to rotate, the tapered stepped shaft (118) is driven to rotate, and finally the bevel gear I (116) is driven to rotate.

4. The inside and outside long distance pipeline spray coating device of claim 2, wherein: the inner moving device (12) is divided into a front side and a rear side, the inner moving device (12) takes the advancing direction of the inner spraying device (1) as a standard, and the inner moving device (12) comprises: a stepped shaft II (121), a gear II (122) and a tire (123); the gear II (122) is a straight toothed spur gear, the gear II (122) is axially positioned through a shaft collar of the stepped shaft II (121), and is circumferentially positioned through a key; the diameter of the two tires (123) is equal to the diameter of the addendum circle of the gear I (112), so that the gear I (112) is prevented from interfering with the inner wall of the pipeline (3), the tires (123) are respectively installed on two outermost shaft sections of the stepped shaft II (121), the tires are axially positioned through shaft sleeves, circumferentially positioned through keys, and the outer sides of the tires are tightly pressed through end covers; the stepped shaft II (121) is tightly matched and fixed with the inner support (15) through an outer ring of a rolling bearing, one sides of the two rolling bearings, which are close to the shaft collar, are connected with a shaft shoulder through a shaft sleeve, and the other sides of the two rolling bearings are respectively pressed by two spring retainer rings; when the gear I (112) in the internal power device (11) rotates, the gear II (122) is driven to rotate, the stepped shaft II (121) is driven to rotate, and finally the two tires (123) are driven to rotate.

5. The inside and outside long distance pipeline spray coating device of claim 2, wherein: the inner spray head device (13) comprises: the device comprises a bevel gear shaft (131) and an inner spray head (132), wherein a bevel gear with the same structure as that of a bevel gear I (116) in the inner power device (11) is machined on the bevel gear shaft (131) and meshed with the bevel gear I (116), the bevel gear shaft (131) is a hollow shaft, and the axis of the bevel gear shaft (131) is overlapped with that of the pipeline (3) and is positioned right above the inner movement device (12) on the rear side; the inner spray head (132) is of a cylindrical pipe structure, the inner diameter of the inner spray head is equal to the diameter of the shaft end of the bevel gear shaft (131) far away from the outermost side of the bevel gear section, one end of the inner spray head (132) is welded with a circular plate, the circular plate inwards cuts three rectangular grooves from the outer circle, the rectangular grooves are evenly distributed according to 120 degrees, the depth of each rectangular groove and the radius of the inner cavity of the pipeline (3) are smaller than the outer diameter of the pipeline (3), after welding, the inner surface of the circular plate is used as a reference surface, the bottom of each rectangular groove is used as an axis, the circular plate rotates towards the direction of the bevel gear shaft (131) for 30 degrees, three triangular grooves with the width of each rectangular groove as high are correspondingly cut, the triangular grooves are perpendicular to the inclined surface, the geometric center is used as an axis, three through holes are correspondingly cut, the axes of the through holes are used as axes, three long pipes are welded, the inner radius of each long pipe, sealing with a rubber ring and fixing with a bolt; the bevel gear shaft (131) is fixed with the inner support (15) through an outer ring of a rolling bearing, two sides of one rolling bearing are fixed through spring washers, one side of the other rolling bearing is positioned through a shaft shoulder, and the other side of the other rolling bearing is tightly pressed through the spring washers; the bevel gear I (116) in the internal power device (11) rotates to drive the bevel gear shaft (131) to rotate, so that the internal spray head (132) is driven to rotate, and the circular spraying of the inner cavity of the pipeline (3) is realized.

6. The inside and outside long distance pipeline spray coating device of claim 2, wherein: the inner guide (14) comprises: the inner guide support (141) and the inner guide wheel (142), the inner guide support (141) is composed of a solid long cylindrical rod and three solid long cylindrical rods, the material is carbon steel, one end of the long cylindrical rod is provided with a conical hole along the axial line, a cylindrical hole is arranged on the small end face of the conical hole, the cylindrical hole is drilled to be perpendicular to the cylindrical hole and connected with the outside, the drilled upper thread is connected with an external paint pipe, the long cylindrical rod is connected with the conical gear shaft (131) in the inner spray head device (13) through a shaft sleeve in the round hole, the outer side of the shaft sleeve is processed into a Morse taper surface, a through hole is drilled at the axial line of the end face, the diameter of the through hole is equal to that of the long cylindrical rod in the inner guide support (141), lubricating oil and sealing rings are arranged inside and outside the shaft sleeve, the three long cylindrical rods are welded on the other side of the long cylindrical rod, the three long cylindrical rods are evenly distributed according to 120 degrees of the circumference, and the length is equal to the radius of the guide wheel, the other ends of the three long cylindrical rods are welded with two rectangular plates with the length smaller than the radius of the guide wheel (142), and through holes are formed in the bottoms of the rectangular plates; the outer ring of the inner guide wheel (142) is made of rubber and has elasticity, the inner guide wheel is made of carbon steel, a cylindrical support is welded on the axis, the diameter of the cylindrical support is equal to that of a through hole at the bottom of the rectangular plate, the cylindrical support on the inner guide wheel (142) is inserted into the through hole of the rectangular plate and is in clearance fit with the through hole, and the inner guide wheel (142) is positioned between the two rectangular plates; when the inner spray head device (13) rotates, the inner guide support (141) in the inner guide device (14) is fixed on the inner support (15) and does not rotate, when the inner spray device (1) moves forwards, the three inner guide wheels (142) roll forwards along the inner cavity of the pipeline (3) in three different directions, and the elastic structure compensates displacement and angle errors, so that the inner spray device (1) is ensured to move forwards along a straight line.

7. The spray coating device for long distance pipes inside and outside of claim 1, wherein: the external spray device (2) comprises: the device comprises an external power device (21), an external rotating device (22), an external linear motion device (23) and an external spray head device (24), wherein a bevel gear II (213) in the external power device (21) is meshed with a bevel gear III (222) in the external rotating device (22); the gear III (212) in the external power device (21) is meshed with the gear IV (232) in the external linear motion device (23); the outer spray head device (24) base is mounted on a flat belt (236) in the outer linear motion device (23) through bolts; when a motor II (214) in the external power device (21) rotates, a bevel gear II (213) rotates to drive a bevel gear III (222) in the external rotation device (22) to rotate, so as to drive a friction wheel I (226) and a friction wheel II (229) to rotate, and finally achieve the purpose of rotating the pipeline (3), and achieve the convenience of placing and moving the pipeline (3), meanwhile, a gear III (212) in the external power device (21) rotates to drive a gear IV (232) in the external linear motion device (23) to rotate, so as to drive a flat belt (236) to rotate, and finally achieve the parallel linear motion of the external spray head device (24) and the pipeline (3).

8. The spray coating device for long distance pipes inside and outside of claim 7, wherein: the external power unit (21) includes: a stepped shaft III (211), a gear III (212), a bevel gear II (213) and a motor II (214); the gear III (212) is a straight-tooth cylindrical gear, the gear III (212) is axially positioned through a shaft shoulder, and is circumferentially positioned through a key; the bevel gear II (213) is positioned at the outermost shaft section of the gear III (212) far away from the stepped shaft III (211), and is axially positioned through a shaft shoulder and circumferentially positioned through a key; the motor II (214) is connected with the outermost shaft end, close to the gear III (212), on the stepped shaft III (211) through a coupler; the stepped shaft III (211) is connected with the ground through a bearing seat; the motor II (214) drives the stepped shaft III (211), the gear III (212) and the bevel gear II (213) to rotate; the outer turning device (22) comprises: the bevel gear type ground connection device comprises a stepped shaft IV (221), a bevel gear III (222), a belt wheel III (223), a stepped shaft V (224), a belt wheel IV (225), a friction wheel I (226), a belt III (227), a stepped shaft VI (228) and a friction wheel II (229), wherein the bevel gear III (222) is located at the outermost shaft section of the stepped shaft IV (221), is axially located through a shaft shoulder and is circumferentially located through a key, and the stepped shaft IV (221) is connected with the ground through a bearing seat; the belt wheel III (223) is positioned at the other outermost shaft section of the stepped shaft IV (221), the shaft is axially positioned through a shaft shoulder, the shaft is circumferentially positioned through a key, and the other side of the belt wheel III (223) is tightly pressed by an end cover; the stepped shaft V (224), the belt wheels IV (225) and the friction wheels I (226) are combined into a group, the total number of the belt wheels IV (225) and the belt wheels III (223) is two, the belt wheels IV (225) are completely the same in shape, the belt wheels IV (225) are positioned on the outermost shaft sections of the stepped shaft V (224), are positioned axially through shaft shoulders and circumferentially through keys, the other sides of the belt wheels IV (225) are pressed by end covers, the friction wheels I (226) are positioned on the other outermost shaft sections of the stepped shaft V (224), are positioned axially through shaft shoulders and circumferentially through keys, the other sides of the friction wheels I (226) are pressed by end covers, the axes of the two stepped shafts V (224) are parallel to the axis of the pipeline (3) and are symmetrically distributed on the two sides of the bottom axis of the pipeline (3), one side of the outer part of the pipeline (3) is placed on the two friction wheels I (226), the stepped shaft IV (221) and the two stepped shafts V (224) are axially parallel and are positioned by an external shaft shoulder of the pipeline (3), the two belt wheels IV (225) are aligned at the outer sides, the belt wheel III (223) is aligned at the inner sides, the stepped shaft IV (221) is positioned right below one stepped shaft V (224) close to the outer linear motion device (23), the two belts III (227) are V belts and are arranged on the belt wheel III (223) and the two belt wheels IV (225), and the two stepped shafts V (224) are connected with the ground through a bearing seat; the friction wheel II (229) is positioned at the other outermost shaft section of the stepped shaft VI (228), the axial direction is positioned through a shaft shoulder, the circumferential direction is positioned through a key, the other side of the friction wheel II (229) is pressed by an end cover, the axes of the two stepped shafts VI (228) are parallel to the axis of the pipeline (3), the height of the two stepped shafts VI (224) is the same as that of the two stepped shafts V (224), the two stepped shafts VI are symmetrically distributed on two sides of the bottom axis of the pipeline (3), the other side of the outer part of the pipeline (3) is placed on the two friction wheels II (229) and positioned through the outer shaft shoulder of the pipeline (3); when the bevel gear III (222) rotates, the step shaft IV (221) and the belt wheel III (223) are driven to rotate, so that the belt III (227) is driven to rotate, then the two belt wheels IV (225) are driven to rotate, then the two step shafts V (224) and the two friction wheels I (226) are driven to rotate, finally the pipeline (3) is driven to rotate, the friction wheels II (229) have no main power and rotate along with the pipeline (3), and the two step shafts VI (228) are connected with the ground through bearing seats.

9. The spray coating device for long distance pipes inside and outside of claim 7, wherein: the outer linear motion device (23) includes: the gear IV (232) is a straight toothed spur gear, the gear IV (232) is located on a shaft section of the stepped shaft VIII (231) on the side close to a shaft collar, the gear IV (232) is located axially through the shaft collar of the stepped shaft VIII (231), is located circumferentially through a key, and is meshed with the gear III (212) in the external power device (21); the belt wheel VI (233) is positioned on the shaft section on the other side close to the collar, is positioned by the collar in the axial direction and is positioned by the key in the circumferential direction; the stepped shaft VII (234) and the belt pulleys V (235) form one set, the two sets are provided, the belt pulleys V (235) have the same shape as the belt pulleys VI (233), the belt pulleys V (235) are arranged on a shaft section close to one side of a shaft collar, the shaft is axially positioned through the shaft collar of the stepped shaft VII (234), the shaft is circumferentially positioned through a key, the two stepped shafts VII (234) are respectively parallel to the axial line of a stepped shaft IV (221) of the outer rotating device (22), one stepped shaft VII (234) has the same height as the stepped shaft VIII (231), the other stepped shaft VII (234) is arranged between the stepped shaft VII (234) and the stepped shaft VIII (231) and has a lower height than the stepped shafts VII (234) and the stepped shaft VIII (231), the belt pulleys V (235) on the stepped shaft VIII (231) and the outer sides of the belt pulleys V (235) on the two stepped shafts VII (234) are arranged in a plane, the inner sides are also positioned in the same plane; the flat belt (236) is a steel wire belt, the belt width is equal to the width of the belt pulley V (235) and the belt pulley VI (233), the flat belt (236) is installed on the belt pulley VI (233) and the two belt pulleys V (235), the moving direction of the flat belt (236) is parallel to the axis of the pipeline (3), wherein the middle stepped shaft VII (234) plays a role in tensioning; when the gear IV (232) rotates, the stepped shaft VIII (231) and the belt wheel VI (233) are driven to rotate, so that the flat belt (236) is driven to rotate, and the belt wheel V (235) rotates along with the flat belt, so that the supporting and tensioning effects are realized.

10. The spray coating device for long distance pipes inside and outside of claim 7, wherein: the lower portion of the outer spray head device (24) is a cuboid, two cylindrical pipes are connected to the rear portion of the outer spray head device to serve as a connecting pipe, a pressure paint pipe is connected to the connecting pipe, the two cylindrical pipes are welded to the upper surface of the cuboid to serve as spray heads, two holes drilled in the cuboid are connected with the two cylindrical pipes respectively, the lower surface of the cuboid is connected to a flat belt (236) of the outer linear motion device (23) through bolts, the spray heads face the pipeline (3), and the outer spray head device (24) follows the flat belt (236) of the outer linear motion device (23) to move linearly.