CN109047933B - Bionic groove processing device for pipeline inner wall coating - Google Patents
Bionic groove processing device for pipeline inner wall coating Download PDFInfo
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- CN109047933B CN109047933B CN201811148140.8A CN201811148140A CN109047933B CN 109047933 B CN109047933 B CN 109047933B CN 201811148140 A CN201811148140 A CN 201811148140A CN 109047933 B CN109047933 B CN 109047933B
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- 238000012545 processing Methods 0.000 title claims abstract description 47
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- 239000003209 petroleum derivative Substances 0.000 description 2
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q9/00—Arrangements for supporting or guiding portable metal-working machines or apparatus
- B23Q9/02—Arrangements for supporting or guiding portable metal-working machines or apparatus for securing machines or apparatus to workpieces, or other parts, of particular shape, e.g. to beams of particular cross-section
Abstract
The invention discloses a device for processing a bionic groove of a coating on the inner wall of a pipeline, which comprises a front supporting mechanism with a front supporting wheel rod, a rotary processing mechanism for providing rotary processing power, a rear supporting mechanism with a rear supporting wheel rod, and a travelling mechanism which is positioned below the rear supporting mechanism and provides forward power for the whole device in the pipeline, wherein the front supporting mechanism is connected with the rotary processing mechanism; the front supporting mechanism, the rotary processing mechanism and the rear supporting mechanism can change the movement radius and adapt to pipelines with different diameters. The bionic groove processing device for the pipeline inner wall coating is convenient to install and detach. The whole device has simple structure and convenient operation.
Description
Technical Field
The invention relates to a pipeline processing device, in particular to a device for processing a bionic groove of a coating on the inner wall of a pipeline.
Background
With the development of social economy, the demand for energy sources such as petroleum and natural gas is increasing, and the main energy loss in the process of conveying the energy sources such as petroleum and natural gas through pipelines is friction loss. The bionic non-smooth surface plays a great role in the field of fluid drag reduction, and the application of the bionic non-smooth surface to the inner wall of a pipeline can reduce energy loss in the conveying process.
The drag reduction methods commonly used at present mainly comprise a drag reduction agent drag reduction method and a coating drag reduction method. Drag reduction agent drag reduction is achieved by adding a polymer into a pipeline, but the drag reduction agent is generally toxic and needs to be continuously supplemented, so that the drag reduction agent has certain limitation. According to the coating drag reduction method, an elastic material is coated on the wall surface of the pipeline to delay a transition point of the flow direction of the layer to turbulent flow, so that the purpose of drag reduction is achieved, and a bionic drag reduction structure is mostly processed on the surface of the coating to improve the drag reduction rate. Especially for long-distance transportation, compared with a drag reduction agent drag reduction method, the coating drag reduction method has no need of supplementing the drag reduction agent, is nontoxic and environment-friendly, and can obtain higher economic benefit. Through researches of a large number of scholars, the micro-groove structures in the shapes of V-shaped, U-shaped and the like have certain drag reduction effect, wherein the drag reduction effect of the V-shaped is better, and the secondary vortex generated at the peak of the groove can generate and influence the drag reduction effect.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a bionic groove processing device for a pipeline inner wall coating, which has a simple structure and is easy and convenient to operate. The specific technical scheme is as follows:
the bionic groove processing device for the inner wall coating of the pipeline is characterized by comprising a front supporting mechanism with a front supporting wheel rod, a rotary processing mechanism for providing rotary processing power, a rear supporting mechanism with a rear supporting wheel rod and a travelling mechanism which is positioned below the rear supporting mechanism and provides advancing power for the whole device in the pipeline, wherein the front supporting mechanism and the rotary processing mechanism are connected in sequence; the front supporting mechanism, the rotary processing mechanism and the rear supporting mechanism can change the movement radius and adapt to pipelines with different diameters.
Further, the front supporting mechanism comprises a screw rod positioning sleeve, a first bearing seat, a ball screw, a supporting wheel rod, a fixing sleeve, a second bearing sleeve and a bottom plate, wherein the screw rod positioning sleeve is fixed on the left end face of the first bearing seat from left to right, a square through hole is formed in the center of the screw rod positioning sleeve, a through hole is formed in the center of the first bearing seat, the right end of the fixing sleeve is fixed on the second bearing seat, through holes are formed in the centers of the fixing sleeve and the second bearing seat, the left end of the ball screw is processed into a square rod, the square rod penetrates through the holes of the first bearing seat and the screw rod positioning sleeve in sequence to realize circumferential positioning, and the right end of the ball screw rod penetrates through the fixing sleeve and the second bearing seat in sequence to realize axial positioning; the first bearing seat and the second bearing seat are fixed on the bottom plate; the support wheel rod comprises a long rod, a short rod and a support wheel, one end of the long rod is rotatably connected to the nut of the ball screw, the other end of the long rod is rotatably connected to the support wheel, one end of the short rod is rotatably connected to the middle part of the long rod, and the other end of the short rod is rotatably connected to the fixed sleeve; the nut on the ball screw moves left and right along the screw rod to drive the long rod to rotate, so that the ball screw is suitable for different pipe diameters.
Further, the rotary processing mechanism comprises a first motor, a shell component, a front support connecting shaft, a driven shaft component, a cutter component, a driving gear, a second motor component and a rear support connecting shaft, wherein the base of the first motor is fixedly connected with the front support mechanism from left to right, the output shaft of the first motor is fixedly connected with one end of the front support connecting shaft, the other end of the front support connecting shaft is connected with the left end of the shell component, one end of the rear support connecting shaft is connected with the right end of the shell component, and the other end of the rear support connecting shaft is connected with the rear support mechanism; the driving gear is connected with the second motor component;
the driven shaft assembly comprises a driven shaft, a driven gear and a cam, wherein the driven gear and the cam are connected to the driven shaft, and the driven gear is meshed with the driving gear for transmission; the cutter assembly comprises a cutter head, a cutter head clamp, a cutter sleeve and a spring, wherein one end of the cutter head clamp is abutted against the cam, the other end of the cutter head clamp penetrates through the cutter sleeve and then stretches out of the shell assembly, the cutter head is fixed at the other end of the cutter head clamp, a shaft shoulder is arranged on the cutter head clamp, a stepped hole is formed in the cutter sleeve, and the spring is compressed between the shaft shoulder and the stepped hole; one end of the cutter sleeve is also provided with an arc-shaped support, and the cutter sleeve is fixed on the shell component through the arc-shaped support.
Further, the rear support mechanism has the same structure as the front support mechanism and is disposed at both ends of the rotary processing mechanism opposite to the front support mechanism.
Further, the travelling mechanism comprises a fourth bearing seat, a travelling driving shaft, a second driving gear, a third motor, a frame, wheels, a travelling driven shaft and a second driven gear, wherein the fourth bearing seat and the third motor are fixed on the upper surface of the frame, two ends of the travelling driving shaft are fixedly connected with the fourth bearing seat and the third motor respectively, two supporting seats are fixed on the lower surface of the frame, the travelling driven shaft penetrates through the two fixed supporting seats, two ends of the travelling driven shaft are fixedly connected with the wheels respectively, holes are formed in the frame, the second driving gear is fixed on the travelling driving shaft, the second driven gear is fixed on the travelling driven shaft, and the second driving gear and the second driven gear penetrate through the holes in the frame to be meshed with each other.
Further, the rear supporting mechanism is connected with the travelling mechanism through a screw.
Further, the number of the supporting wheel rods is three, and the supporting wheel rods are uniformly distributed along the circumferential direction of the nut of the ball screw.
Further, the driven shaft assembly and the cutter assembly are three sets and are uniformly arranged along the circumferential direction of the rotary processing mechanism.
Further, the second motor assembly comprises a second motor and an h-shaped motor frame, the second motor is fixed on a platform of the h-shaped motor frame, and the bottom end of the h-shaped motor frame is fixed on the inner wall of the shell assembly through a gasket.
Further, the shell component comprises a front cover plate, a rear cover plate and two semicircular arch parts, wherein the two semicircular arch parts are fixedly connected into a cylindrical structure, and the front cover plate and the rear cover plate are discs and are respectively fixed at the front end and the rear end of the cylindrical structure.
The beneficial effects of the invention are as follows:
the invention adopts a mechanism of gear transmission and cam adjustment for synchronous extension of the cutter, ensures that the cutter can extend and retract along the radial direction and is suitable for processing pipelines with different diameters, and the supporting radius of the supporting mechanism is adjusted by adopting the ball screw to drive the supporting wheel rod in the front supporting mechanism, so that the adjustment is convenient. For the groove structures with different cross-sectional shapes, only the cutter heads on the cutter need to be replaced, and the cutter head bolts are fixedly connected to the cutter, so that the installation and the disassembly are convenient. The whole device has simple structure and convenient operation.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a bionic groove processing device for a pipeline inner wall coating;
FIG. 2 is a schematic perspective view of a front support mechanism;
FIG. 3 is a rotational cross-sectional view of the rotary processing mechanism;
FIG. 4 is a left cross-sectional view of the rotary machining mechanism;
FIG. 5 is a cross-sectional view of a second motor assembly;
FIG. 6 is a schematic view of the connection between the rear support structure and the travel mechanism;
FIG. 7 is a schematic perspective view of a travel mechanism;
in the drawing, a front support mechanism 1, a rotary processing mechanism 2, a rear support mechanism 3, a traveling mechanism 4, a screw positioning sleeve 11, a first bearing housing 12, a ball screw 13, a support wheel bar 14, a fixed sleeve 15, a second bearing housing 16, a base plate 17, a first motor 21, a housing assembly 22, a front support connecting shaft 23, a driven shaft assembly 24, a cutter assembly 25, a driving gear 26, a second motor assembly 27, a rear support connecting shaft 28, a third bearing housing 29, a long bar 141, a short bar 142, a support wheel 143, a front cover plate 221, a rear cover plate 222, a semicircular arch 223, a driven shaft 241, a driven gear 242, a cam 243, a deep groove ball bearing 244, a driven shaft retainer 245, a first sleeve 246, a second sleeve 247, a third sleeve 248, a cutter head 251, a cutter head holder 252, a cutter sleeve 253, a spring 254, a sleeve washer 255, a second motor 271, an h-shaped motor frame 272, a washer 273, a fourth bearing housing 41, a traveling driving shaft 42, a second driving gear 43, a coupling 44, a third motor 45, a frame 46, a wheel 47, a traveling driven shaft 48, and a second driven gear 49.
Detailed Description
The objects and effects of the present invention will become more apparent from the following detailed description of the preferred embodiments and the accompanying drawings, in which the present invention is further described in detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, the invention provides a device for processing a bionic groove of a coating on the inner wall of a pipeline, which comprises a front supporting mechanism 1 with a front supporting wheel rod, a rotary processing mechanism 2 for providing rotary processing power, a rear supporting mechanism 3 with a rear supporting wheel rod, and a travelling mechanism 4, wherein the travelling mechanism 4 is positioned below the rear supporting mechanism 3 and provides advancing power for the whole device in the pipeline, wherein the front supporting mechanism 1 is connected with the rotary processing mechanism 2 for providing rotary processing power; the front support mechanism 1, the rotary machining mechanism 2 and the rear support mechanism 3 can change the movement radius and adapt to pipelines with different diameters.
As shown in fig. 2, the front support mechanism 1 includes a screw rod positioning sleeve 11, a first bearing seat 12, a ball screw 13, a support wheel rod 14, a fixed sleeve 15, a second bearing seat 16, and a bottom plate 17, tapered roller bearings are arranged in the first and second bearing seats 12 and 16, a nut is arranged on the ball screw 13, and the bottom plate 17 is shaped like an "I"; the fixed sleeve 15 is of a disc structure, is fixedly connected to one end, close to the screw nut, of the screw rod through a screw, and is provided with a circular through hole at the center of the fixed sleeve 15, and the aperture is larger than the diameter of the screw rod.
From left to right, the lead screw locating sleeve 11 is fixed on the left end face of the first bearing seat 12, the lead screw locating sleeve 11 is in the shape of a disc, a square through hole is formed in the center of the lead screw locating sleeve 11, two threaded through holes which are symmetrical about the circle center are formed in the disc, a through hole is formed in the center of the first bearing seat 12, the right end of the fixing sleeve 15 is fixed on the second bearing seat 16, through holes are formed in the centers of the two fixing sleeve 15, the left end of the ball screw 13 is processed into a square rod, the square rod penetrates through the holes of the first bearing seat 12 and the lead screw locating sleeve 11 in sequence, circumferential locating is achieved, and the right end of the ball screw 13 penetrates through the fixing sleeve 16 and the second bearing seat 17 in sequence, and axial locating is achieved; the ball screw 13 converts the circumferential rotation of the screw into an axial movement of a nut sleeve on the screw. The first bearing seat 12 and the second bearing seat 16 are fixed on the bottom plate 17 through screws; after the supporting radius of the front supporting mechanism 1 is adjusted by rotating the screw rod 13, the screw rod positioning sleeve 11 is sleeved into the square rod end of the screw rod 13, and the screw rod positioning sleeve 11 is fixedly connected to one end of the first bearing seat 12 by screws, so that the screw rod 13 is circumferentially positioned. The screw 13 is on the same axis with the axes of the fixed sleeve 16, the positioning sleeve 11, the first bearing pedestal 12 and the second bearing pedestal 16. The ball screw 13 and the fixed sleeve 16 are uniformly distributed and hinged with three groups of supporting wheel rods 14 in the circumferential direction, so that the stability of the support is improved.
The three supporting wheel rods 14 are uniformly distributed along the circumferential direction of the nut of the ball screw 13, the supporting wheel rods 14 comprise long rods 141, short rods 142 and supporting wheels 143, one ends of the long rods 141 are hinged to the nut of the ball screw 13, the other ends of the long rods 141 are hinged to the supporting wheels 143, one ends of the short rods 142 are rotatably connected to the middle of the long rods 141, the other ends of the short rods 142 are rotatably connected to the fixed sleeve 15, the supporting wheels 143 are axially in the moving direction of the inner wall of the pipeline, the long rods 141 and the short rods 142 form connecting rods, the rotating screw 13 only axially moves, and the nut sleeve does not circumferentially rotate; the nut on the ball screw 13 moves left and right along the screw rod to drive the long rod 141 to rotate, so that the ball screw is suitable for different pipe diameters.
As shown in fig. 3-4, the rotary processing mechanism 2 comprises a first motor 21, a housing assembly 22, a front support connecting shaft 23, a driven shaft assembly 24, a cutter assembly 25, a driving gear 26, a second motor assembly 27, a rear support connecting shaft 28 and a third bearing seat 29, wherein the base of the first motor 21 is fixedly connected with the front support mechanism 1 from left to right, the output shaft of the first motor is connected with one end of the front support connecting shaft 23 through a coupling, the other end of the front support connecting shaft 23 is connected with the left end of the housing assembly 22, one end of the rear support connecting shaft 28 is connected with the right end of the housing assembly 22, and the other end of the rear support connecting shaft is connected with the rear support mechanism 3 through the third bearing seat 29 and is fixed on the bottom plate of the rear support structure 3; the driving gear 26 is connected with the second motor assembly 27; the first motor 21 is a servo motor, and the axis of the output shaft of the first motor 21 and the screw rod 13 are on the same axis.
The housing assembly 22 includes a front cover 221, a rear cover 222, and two semi-circular arch members 223, where the two semi-circular arch members are fixedly connected to form a cylinder structure, and the front cover and the rear cover are discs and are respectively fixed at the front end and the rear end of the cylinder structure.
A circular through hole and a key slot are formed in the circle center of the disc and are used for connecting the front support connecting shaft 23; the surface of the disc is provided with three circular stepped holes uniformly distributed in the circumferential direction, the stepped holes are in interference fit with the outer ring of the driven shaft bearing, the disc is provided with 8 threaded through holes uniformly distributed in the circumferential direction, the front cover plate 221 and the rear cover plate 222 are fixedly connected with two ends of the cylinder through screws, and the rear cover plate 222 and the front cover plate 221 have the same structure.
As shown in fig. 3 and 4, the driven shaft assembly 24 includes a driven shaft 241, a driven gear 242 connected to the driven shaft 241, a cam 243, a deep groove ball bearing 244, a driven shaft retainer 245, a first sleeve 246, a second sleeve 247, a third sleeve 248, and the driven gear 242 engaged with the driving gear 26; the two ends of the driven shaft 241 are installed in deep groove ball bearings 244 in the stepped holes of the end covers in a rotating connection mode, and the inner rings of the two bearings are in interference fit with the shaft, so that the radial positioning of the shaft is realized. Two check rings 245 are respectively arranged at the outer ends of the joints of the driven shaft 241 and the bearing, so that the axial positioning of the shaft is realized. The driven gear 242 and the cam 243 are installed on the driven shaft 241 through key connection, a first shaft sleeve 246 is installed between the deep groove ball bearing 244 and the cam 243, a second shaft sleeve 247 is installed between the driven gear 242 and the cam 243, a third shaft sleeve 248 is installed between the driven gear 242 and the deep groove ball bearing 244, and axial positioning of parts and bearings on the driven shaft is achieved through the three shaft sleeves.
The cutter assembly 25 comprises a cutter head 251, a cutter head clamp 252, a cutter sleeve 253, a spring 254 and a sleeve gasket 255, wherein the cutter head clamp 252 is of a round rod structure, a shaft shoulder is arranged on the rod and used for supporting the spring 255, one end of the clamp is in contact with the cam 243, the other end of the clamp penetrates through the cutter sleeve 253 and then extends out of the shell assembly 22, a square hole is formed in the center of one end of the cutter sleeve extending out of the shell assembly, a bolt of the cutter head 251 is fixedly connected to the clamp, the shaft shoulder is arranged on the cutter head clamp 252, one end of the cutter sleeve 253 is of a cylindrical structure, a stepped hole is formed in the cutter head clamp 252, the spring 254 is compressed between the shaft shoulder and the stepped hole, and the cutter head clamp 252 can radially stretch in the sleeve; the other end of the cutter sleeve 253 is an arc-shaped base, the cutter sleeve 253 is fixedly connected in a rotary processing mechanism through a screw, a sleeve gasket 255 is arranged between the arc-shaped base and the shell assembly 22, the contact area is increased, and vibration in processing is reduced. When the cam 243 rotates, the tool bit clamp 242 performs radial expansion and contraction movement under the combined action of the cam 243 and the spring 254, so as to realize contact and separation of the tool bit and the inner wall of the pipeline.
The driven shaft assembly 24 and the cutter assembly 25 are three sets and are uniformly arranged along the circumferential direction of the rotary processing mechanism 2.
Referring to fig. 3-5, the second motor assembly 27 is comprised of a second motor 271, an h-shaped motor frame 272, and a gasket 273. The second motor 271 is a servo motor, the driving gear 26 is installed on the output shaft of the second motor 271 through key connection, and the two ends of the gear are axially positioned through check rings. The second motor 271 is screw-fastened to the motor frame 272. The motor frame 272 structure is similar to "h" font form, and the bottom both ends are the base, through base bolt rigid coupling in the shell, are equipped with motor cabinet gasket 273 between bottom and the shell, and gasket one end is the plane, and the other end is arc and the laminating of drum inner wall, improves the stability of motor frame 272 installation.
Referring to fig. 1 and 6, the rear support mechanism 3 has the same basic structure as the front support mechanism 1. The ball screw 13 on the front supporting mechanism, the rotary processing mechanism 2 and the ball screw axle center of the rear supporting mechanism are all positioned on the same axis; the third bearing seat 29 is fixedly connected on the bottom plate of the rear supporting mechanism 3 through screws, a threaded hole is formed in the rear supporting bottom plate, and the position of the hole is located between the third bearing seat and the second bearing seat and is located on the central line of the bottom plate. The rear supporting mechanism 3 is connected with the travelling mechanism 4 through a screw, and a fastening nut is arranged at the joint of the screw, so that the axial travelling force of the travelling mechanism 4 is transmitted to the integral device. The vertical distance between the rear supporting mechanism 3 and the advancing mechanism 4 is adjusted in a screw adjusting mode, so that the advancing mechanism 4 can always contact the inner wall of the pipeline aiming at pipelines with different diameters.
The travelling mechanism 4 comprises a fourth bearing seat 41, a travelling driving shaft 42, a second driving gear 43, a third motor 45, a frame 46, wheels 47, a travelling driven shaft 48 and a second driven gear 49, wherein the fourth bearing seat 41 and the third motor 45 are fixed on the upper surface of the frame 46 through screws, one end of the travelling driving shaft 42 is connected with the fourth bearing seat 41 in a rotary connection mode, and the other end of the travelling driving shaft is connected with an output shaft of the third motor 45 through a coupler 44. The fourth bearing seat 41 and the third motor 45 are fixedly connected on the frame 46 through screws, the second driving gear 43 is arranged on the traveling driving shaft 42 in a key connection mode, and two ends of the gear are axially positioned through check rings 431.
The lower surface of the frame 46 is fixed with two supporting seats, a round hole is formed in a support at the bottom of the frame 46, a traveling driven shaft 48 is rotationally connected with the support, two wheels 47 are fixedly connected at two ends of the traveling driven shaft 48 in a threaded manner, and the two wheels are tightly fixed through a tightening nut. A second driven gear 49 is keyed to the travelling driven shaft 48, with the ends of the gear being axially positioned by a retaining ring 491. The second driving gear 43 is meshed with the second driven gear 49 for transmission, the output shaft of the third motor 45 rotates to drive the second driving gear 43 to rotate, and the second driven gear 49 is driven to rotate through gear meshing, so that the travelling driven shaft 48 and the wheels 47 are driven to rotate.
The specific processing steps are as follows:
1) According to the inner diameter of a pipeline to be processed, the ball screw 13 of the front supporting mechanism 1 is rotated to enable the supporting wheel frame to rotate, and the supporting radius of the supporting mechanism is adjusted, so that the supporting wheels 143 of the three groups of supporting wheel rods 14 can just prop against the inner wall of the pipeline to be processed, after the supporting radius is adjusted, the screw rod positioning sleeve 11 is sleeved into the square rod end of the ball screw 13, the screw rod positioning sleeve 11 is fixedly connected to the first bearing seat 12 through a screw, the circumferential rotation of the ball screw 13 is limited, and the supporting radius is kept unchanged;
2) Adjusting the supporting radius of the rear supporting mechanism 3 by adjusting the front supporting mechanism 1;
3) Placing the whole processing device into a pipeline to be processed;
4) Starting a third motor 45 of the travelling mechanism 4, controlling the whole device to travel a certain distance, reaching a specified position to be processed of the pipeline, and then closing the third motor 45 of the travelling mechanism 4;
5) Starting a second motor 271 of the rotary machining mechanism 2, driving the driven shaft assembly 24 to circumferentially rotate around the axis of the driving gear 26, and further adjusting the cutter holder 252 to extend out of the rotary machining mechanism by a specified distance along the radial direction, and closing the second motor 271 when the cutter head 251 is deep into the coating of the inner wall of the pipeline for a certain machining depth;
6) The first motor 21 is started, the output shaft of the motor drives the rotary machining mechanism 2 to rotate, and the cutter head 251 performs machining and cutting on the coating. When the output shaft of the first motor 21 rotates 120 degrees, the three cutter assemblies 25 rotate 120 degrees respectively, the rotary machining mechanism finishes one circle of machining and cutting on the coating of the inner wall of the pipeline, and the first motor 21 is turned off;
7) The second motor 271 is started, the driving gear 26 drives the driven gear 242 to rotate, the cam 243 rotates, the tool bit clamp 252 radially retracts into the cylinder under the action of the spring 254, and the tool bit 241 radially retracts for a certain distance to be contacted and separated from the groove on the inner wall of the processed pipeline;
8) Repeating the steps 2) to 7) until all grooves of the pipeline coating are processed.
It will be appreciated by persons skilled in the art that the foregoing description is a preferred embodiment of the invention, and is not intended to limit the invention, but rather to limit the invention to the specific embodiments described, and that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for elements thereof, for the purposes of those skilled in the art. Modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (6)
1. The bionic groove processing device for the inner wall coating of the pipeline is characterized by comprising a front supporting mechanism (1) with a front supporting wheel rod, a rotary processing mechanism (2) for providing rotary processing power, a rear supporting mechanism (3) with a rear supporting wheel rod and a travelling mechanism (4) which is positioned below the rear supporting mechanism (3) and provides advancing power for the whole device in the pipeline, wherein the front supporting mechanism is connected with the rotary processing mechanism (2) in sequence; the front supporting mechanism (1), the rotary processing mechanism (2) and the rear supporting mechanism (3) can change the movement radius and adapt to pipelines with different diameters;
the front support mechanism (1) comprises a screw rod positioning sleeve (11), a first bearing seat (12), a ball screw (13), a support wheel rod (14), a fixing sleeve (15), a second bearing seat (16) and a bottom plate (17), wherein the screw rod positioning sleeve (11) is fixed on the left end face of the first bearing seat (12) from left to right, a square through hole is formed in the center of the screw rod positioning sleeve (11), a through hole is formed in the center of the first bearing seat (12), the right end of the fixing sleeve (15) is fixed on the second bearing seat (16), through holes are formed in the centers of the two through holes, the left end of the ball screw (13) is processed into a square rod, the square rod sequentially penetrates through the holes of the first bearing seat (12) and the screw rod positioning sleeve (11), and the right end of the ball screw (13) sequentially penetrates through the fixing sleeve (15) and the second bearing seat (16), so that axial positioning is realized; the first bearing seat (12) and the second bearing seat (16) are fixed on the bottom plate (17); the supporting wheel rod (14) comprises a long rod (141), a short rod (142) and a supporting wheel (143), one end of the long rod (141) is rotatably connected to a nut of the ball screw (13), the other end of the long rod is rotatably connected with the supporting wheel (143), one end of the short rod (142) is rotatably connected to the middle part of the long rod (141), and the other end of the short rod is rotatably connected to the fixed sleeve (15); the nut on the ball screw (13) moves left and right along the screw rod to drive the long rod (141) to rotate, so that the ball screw is suitable for different pipe diameters;
the rotary machining mechanism (2) comprises a first motor (21), a shell component (22), a front support connecting shaft (23), a driven shaft component (24), a cutter component (25), a driving gear (26), a second motor component (27) and a rear support connecting shaft (28), wherein the base of the first motor (21) is fixedly connected with the front support mechanism (1) from left to right, the output shaft of the first motor is fixedly connected with one end of the front support connecting shaft (23), the other end of the front support connecting shaft (23) is connected with the left end of the shell component (22), one end of the rear support connecting shaft (28) is connected with the right end of the shell component (22), and the other end of the rear support connecting shaft is connected with the rear support mechanism (3); the driving gear (26) is connected with the second motor assembly (27);
the driven shaft assembly (24) comprises a driven shaft (241), a driven gear (242) connected to the driven shaft (241) and a cam (243), and the driven gear (242) is meshed with the driving gear (26) for transmission; the cutter assembly (25) comprises a cutter head (251), a cutter head clamp (252), a cutter sleeve (253) and a spring (254), one end of the cutter head clamp (252) is abutted against the cam (243), the other end of the cutter head clamp passes through the cutter sleeve (253) and then extends out of the shell assembly (22), the cutter head (251) is fixed at the other end of the cutter head clamp (252), a shaft shoulder is arranged on the cutter head clamp (252), a stepped hole is formed in the cutter sleeve (253), and the spring (254) is compressed between the shaft shoulder and the stepped hole; one end of the cutter sleeve (253) is also provided with an arc-shaped support, and the cutter sleeve (253) is fixed on the shell assembly (22) through the arc-shaped support;
the rear supporting mechanism (3) has the same structure as the front supporting mechanism (1) and is arranged at two ends of the rotary processing mechanism (2) opposite to the front supporting mechanism (1);
the travelling mechanism (4) comprises a fourth bearing seat (41), a travelling driving shaft (42), a second driving gear (43), a third motor (45), a frame (46), wheels (47), a travelling driven shaft (48) and a second driven gear (49), wherein the fourth bearing seat (41) and the third motor (45) are fixed on the upper surface of the frame (46), two ends of the travelling driving shaft (42) are fixedly connected with the fourth bearing seat (41) and the third motor (45) respectively, two supporting seats are fixed on the lower surface of the frame (46), the travelling driven shaft (48) penetrates through the two fixed supporting seats, two ends of the travelling driven shaft are fixedly connected with the wheels (47) respectively, the frame (46) is provided with a hole, the second driving gear (43) is fixed on the travelling driving shaft (42), the second driven gear (49) is fixed on the travelling driven shaft (48), and the second driving gear (43) and the second driven gear (49) penetrate through the frame (46) and are meshed with each other.
2. The bionic groove processing device for the inner wall coating of the pipeline according to claim 1, wherein the rear supporting mechanism (3) is connected with the advancing mechanism (4) through a screw.
3. The bionic groove processing device for the pipeline inner wall coating according to claim 1, wherein three supporting wheel rods (14) are uniformly distributed along the circumferential direction of the nut of the ball screw (13).
4. The bionic groove processing device for the inner wall coating of the pipeline according to claim 1, wherein the driven shaft assembly (24) and the cutter assembly (25) are three sets and are uniformly arranged along the circumferential direction of the rotary processing mechanism (2).
5. The bionic groove processing device for the inner wall coating of the pipeline according to claim 1, wherein the second motor assembly (27) comprises a second motor (271) and an h-shaped motor frame (272), the second motor (271) is fixed on a platform of the h-shaped motor frame (272), and the bottom end of the h-shaped motor frame (272) is fixed on the inner wall of the shell assembly (22) through a gasket.
6. The device for processing the bionic groove of the inner wall coating of the pipeline according to claim 1, wherein the shell component (22) comprises a front cover plate (221), a rear cover plate (222) and two semicircular arch parts (223), the two semicircular arch parts are fixedly connected into a cylindrical structure, and the front cover plate and the rear cover plate are circular discs and are respectively fixed at the front end and the rear end of the cylindrical structure.
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| CN110732536A (en) * | 2019-11-14 | 2020-01-31 | 中核核电运行管理有限公司 | lining plastic pipe lining plastic layer removing equipment |
| CN112997614A (en) * | 2021-02-26 | 2021-06-22 | 重庆文理学院 | A turn over shovel loosening soil device for hillside fields |
| CN113714558B (en) * | 2021-09-22 | 2022-06-17 | 淮阴工学院 | Positioning groove automatic processing system for slender rod piece |
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