CN111921988A - Laser belt cleaning device with adjustable facula form - Google Patents
Laser belt cleaning device with adjustable facula form Download PDFInfo
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- CN111921988A CN111921988A CN202010774329.9A CN202010774329A CN111921988A CN 111921988 A CN111921988 A CN 111921988A CN 202010774329 A CN202010774329 A CN 202010774329A CN 111921988 A CN111921988 A CN 111921988A
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- rod
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- adjusting
- laser cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
- B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/049—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes, i.e. self-propelled
- B08B9/051—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes, i.e. self-propelled the cleaning devices having internal motors, e.g. turbines for powering cleaning tools
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a laser cleaning device with adjustable light spot shape, which relates to the field of laser cleaning, and comprises a laser cleaning head and an adjusting turntable, wherein the upper part of a positioning ejector rod is fixedly provided with a limiting ring with the radius larger than that of a through hole; a fixing plate is fixedly arranged on the outer end face of the positioning ring at one side far away from the double-headed motor, and an adjusting screw is arranged at the central position of the fixing plate in a threaded manner; the inclined plane of the limiting boss is a synchronous adjusting plane, and the height of the positioning ejector rod in the two positioning rings is adjusted through the synchronous adjusting plane; the invention solves the technical problems that the traditional device can not be coaxial with the pipeline axis all the time and the device is driven by the immune self.
Description
Technical Field
The invention relates to the field of laser cleaning, in particular to a laser cleaning device with an adjustable light spot shape.
Background
The laser cleaning principle is that the plasma is only generated at an energy density above a threshold value, which depends on the contamination or oxidation layer being removed. This threshold effect is important for effective cleaning with substrate material secured. There is also a second threshold for the presence of plasma. If the energy density exceeds this threshold, the substrate material will be destroyed. In order to perform effective cleaning while ensuring the safety of the substrate material, the laser parameters must be adjusted to keep the energy density of the light pulses strictly between two thresholds. Where adjusting the distance between the laser and the cleaning surface is an important way to change the threshold.
The pipe is a device which is very common in industrial production and daily life, because the pipe is a rotating body, a cleaning laser head is difficult to enter the pipe, and the inner wall of the pipe is difficult to clean due to the accumulation of pollutants in the production and life processes.
The invention with the patent number of CN201811255118.3 discloses a laser cleaning device for the inner wall of a pipeline, which comprises a rotating mechanism, wherein the rotating mechanism is provided with a traveling mechanism, the traveling mechanism is contacted with the inner wall of the pipeline, one end of the rotating mechanism is connected with a traction mechanism, the rotating mechanism is internally provided with a motor, an output shaft of the motor is connected with a zooming mechanism, the zooming mechanism is internally provided with a connecting rod, the connecting rod is provided with a plane mirror, a laser inlet on the zooming mechanism corresponds to the plane mirror, the zooming mechanism is provided with a fixed rod, the fixed rod is provided with a convex lens, the convex lens corresponds to the plane mirror, and the zooming mechanism is; the laser device is connected with the laser introducing mechanism, the laser introducing mechanism is connected with the rotating mechanism, and the laser output end of the laser introducing mechanism corresponds to the laser inlet. The invention can clean the inner wall of the whole pipeline and change the focus of the laser, so that the laser reaches the maximum cleaning efficiency.
However, when the scheme is used, the first walking mode is dragging, so that the stringing process is difficult, and particularly for a long pipeline or a turning pipeline, the operation difficulty is extremely high; secondly, its running gear's walking process is mainly at unclean face, and dirt on the pipe face leads to running gear to hardly guarantee with the coaxial steady motion of pipe, and again, because the compression pole leans on the spring to support completely, so the spring deformation of downside is obviously greater than the upside, and this also can lead to the motion in-process, the laser emission end can not be coaxial with the body constantly, and is further, because the actual distance of every part is different on laser emission end and the pipe wall, also can lead to the threshold value different to it is not good to cause the clean effect in the pipeline.
Based on this, the invention designs a laser cleaning device with adjustable light spot shape to solve the above problems.
Disclosure of Invention
The invention aims to provide a laser cleaning device with an adjustable light spot form, which aims to solve the problem that the rope threading process is difficult due to dragging in the walking mode in the background technology, and the operation difficulty is extremely high especially for a long pipeline or a turning pipeline; secondly, its running gear's walking process is mainly at unclean face, dirt on the pipe face leads to running gear to hardly guarantee with the coaxial steady motion of pipe, and again, because the compression pole leans on the spring to support completely, so the spring deformation of downside is obviously greater than the upside, this also can lead to the motion in-process, the laser emission end can not be coaxial with the body constantly, and is further, because the actual distance of every part is different on laser emission end and the pipe wall, also can lead to the threshold value different to cause the not good problem of clean effect in the pipeline.
In order to achieve the purpose, the invention provides the following technical scheme: a laser cleaning device with adjustable light spot shape comprises a laser cleaning head and an adjusting turntable, and is characterized in that the laser cleaning head is provided with a light spot shape adjusting mechanism; the laser cleaning head is fixedly arranged on the adjusting turntable which is fixedly arranged on an output shaft at one side of the double-head motor, the double-head motor is fixedly arranged on the positioning rings through the fixing frame, the number of the positioning rings is two, and is fixedly connected through a connecting plate, the circular wall of each positioning ring is sleeved with a positioning ejector rod through holes which are uniformly distributed at equal angles, the upper part of the positioning ejector rod is fixedly provided with a limiting ring with the radius larger than that of the through hole, the lower part of the positioning ejector rod is connected with the inner wall of the positioning ring through a compression spring, the corresponding limiting rings on the two positioning rings are jointly and fixedly provided with a mounting frame, the middle part of the mounting rack is fixedly provided with an outer side slide rail and an inner side slide rail, the outer side slide rail and the inner side slide rail are fixedly connected through two transposition rings, and the outer side slide rail and the inner side slide rail can be both connected with a pushing switching rod in a sliding manner; a fixing plate is fixedly arranged on the outer end face of the positioning ring at one side far away from the double-headed motor, and an adjusting screw is arranged at the center of the fixing plate in a threaded manner; a pair of positioning bosses are coaxially and slidably arranged between the two positioning rings through a sliding block fixedly arranged on the connecting plate, the positioning bosses are fixedly connected through a connecting rod, a through hole is formed in the axial section of each positioning boss close to the output end of the double-end motor, and the large end face of the other limiting boss is in contact with the adjusting screw; the inclined plane of the limiting boss is a synchronous adjusting plane, and the height of the positioning ejector rod in the two positioning rings is adjusted through the synchronous adjusting plane;
the connecting plates in the two positioning rings are also fixedly provided with connecting frames, one section of the connecting frame, which is close to the double-head motor, is fixedly connected with a thin end of a telescopic rod, the thin end of the telescopic rod is sleeved in a thick end of the telescopic rod, and pushing switching rods with the same number as that of the positioning ejector rods on a single positioning ring are uniformly distributed on the outline of the thick end of the telescopic rod at equal angles;
the pushing switching rod comprises a lower support rod fixedly connected with the thick end of the telescopic rod, the upper end of the lower support rod is sleeved in a hole in the lower end of the upper support rod and is connected with the upper wall of the hole of the upper support rod through an extension spring, a top plate is fixedly arranged on the upper end face of the upper support rod, a sliding ring with the outer diameter larger than the middle distance between the outer side sliding rail and the inner side sliding rail, smaller than the inner diameter of the upper side of the transposition ring and larger than the inner diameter of the lower side of the transposition ring is fixedly arranged in the middle of the upper support rod, and a retaining ring is fixedly arranged at; the baffle ring is connected with a pushing switching rod resetting device through the contact of the lower end surface;
the pushing switching rod resetting device comprises a synchronous ring fixedly arranged on a connecting plate, a through hole and an embedded circular groove which are coaxial with a motor output shaft and lifting grooves which are uniformly distributed at equal angles are formed in the middle of the synchronous ring, the inner diameter of the embedded circular groove is matched with the distance between a far rest section and a rotation center of the cam, and the number of the far rest sections and the number of the lifting grooves of the cam are equal to the number of the pushing switching rods; a jacking block is arranged in the lifting groove in a sliding mode, a second adjusting rod is hinged to the upper end face of the jacking block, and a first adjusting rod is hinged to the upper end of the second adjusting rod; the upper end of the first adjusting rod is hinged with a semicircular lifting ring, the semicircular lifting ring is arranged on a sliding wall fixedly connected with the synchronizing ring in a sliding mode, a hinge shaft of the first adjusting rod and the second adjusting rod is hinged with a pull rod, the other end of the pull rod is fixedly provided with a roller, and the roller is arranged in a balance groove formed in the positioning boss in a rolling mode;
the size of the lifting ring part of the semicircular lifting ring is matched with that of the baffle ring;
the contour curve of the synchronous adjusting surface is matched with the contour of a sine function curve taking the sum of the length of the first adjusting rod and the length of the second adjusting rod as a bevel edge; the lifting characteristic of the semicircular lifting rod is ensured to be the same as the driving characteristic of the synchronous adjusting surface, and the position of the semicircular lifting rod relative to the pushing switching rod is ensured to be unchanged.
The reduction ratio of the reduction gearbox is equal to the number of the pushing and switching rods;
when the slip ring contacts with the inside slide rail, the double-end motor rotates, and when the slip ring contacts with the outside slide rail, the double-end motor stops rotating, and the telescopic rod moves. (this section can be reliably controlled only by mounting contact pieces of the motor on the lower surface of the slip ring and the inner side rail)
In order to solve the problem that the rope threading process is difficult due to the fact that the walking mode in the scheme is dragging, and the operation difficulty is extremely high particularly for a long pipeline or a turning pipeline; secondly, its running gear's walking process is mainly at unclean face, dirt on the pipe face leads to running gear to hardly guarantee with the coaxial steady motion of pipe, and again, because the compression pole leans on the spring to support completely, so the spring deformation of downside is obviously greater than the upside, this also can lead to the motion in-process, the laser emission end can not be coaxial with the body constantly, and is further, because the actual distance of every part is different on laser emission end and the pipe wall, also can lead to the threshold value different to cause the not good problem of clean effect in the pipeline. The solution presented by the present invention is as follows:
when in use: the method mainly comprises the following steps of cleaning stains on the pipe wall near the pipeline port through a laser cleaning head, and putting the whole device into a pipe, wherein the actual use of the method mainly comprises the following two processes: adjusting and positioning the ejector rod and the whole moving process of the device.
Adjusting and positioning the ejector rod: the adjusting screw is rotated to force the adjusting screw to prop against the positioning boss to move forwards relative to the positioning ring along the sliding block; the synchronous adjusting surface of the positioning boss is in contact with the lower end surface of the positioning ejector rod, the positioning ejector rod is further forced to expand along the radial direction of the positioning ring along the through hole on the positioning ring, and the rod head part of the positioning ejector rod is in full contact with the pipe wall; simultaneously with this, the following steps are carried out: in the process of expanding the positioning ejector rod, the limiting ring on the positioning ejector rod drives the mounting rack fixed on the positioning ejector rod to move upwards, and the moving displacement is equal to the radial displacement of the positioning ejector rod; the further inner side sliding rail drives the upper support rod to move by the same displacement amount through the sliding ring, so that the relative positions of the sliding ring, the mounting frame and the limiting ring are ensured to be unchanged; furthermore, at the same time: as shown in fig. 5, the displacement of the positioning boss relative to the positioning ring is equal to the displacement of the positioning boss relative to the synchronizing ring, i.e. the pull rod moves rightwards, so as to drive the semicircular lifting rod to move upwards, because the profile curve of the synchronizing adjusting surface matches with the profile of the sine function curve taking the sum of the length of the first adjusting rod and the length of the second adjusting rod as the bevel edge, the roller slides up and down in the balancing groove to balance the longitudinal displacement of the hinge joint of the first adjusting rod and the second adjusting rod, and the relationship between the transverse displacement of the roller and the longitudinal displacement of the semicircular lifting ring matches with the synchronizing adjusting surface, and because the outer profile of the synchronizing adjusting surface directly determines the radial displacement of the positioning ejector rod, the radial displacement of the positioning ejector rod is equal to the longitudinal displacement of the semicircular lifting rod. Therefore: the radial relative positions among the sliding ring, the semicircular lifting rod, the mounting rack and the limiting ring cannot be changed along with the size of the pipe diameter.
The whole moving process of the device is as follows: firstly, a laser cleaning head rotates a circle around the axis of a double-end motor under the driving of the output end of the double-end motor to clean the inner wall of a pipeline swept by the laser cleaning head, meanwhile, the output shaft at the other end of the double-end motor drives a cam to rotate through a speed reducer, a far rest section on the cam pushes a jacking block to move along the radial direction, so that a first adjusting rod, a semicircular lifting rod, a second adjusting rod and a roller wheel are pushed to move upwards as shown in figure 5, the sliding ring of an upper supporting rod is lifted to an outer side guide rail from an inner side guide rail through a baffle ring by the semicircular lifting rod, a top plate on the upper supporting rod can reliably push the inner wall of the pipeline, and at the moment, extension springs in the upper supporting rod and the lower supporting rod can be further stretched; when the lower bottom surface contact of slip ring outside the upper surface of slide rail, double-end motor stop work, and the telescopic link begins to move: firstly, the thin end of the telescopic rod moves rightwards relative to the thick end of the telescopic rod (shown in figure 1), because the thick end of the telescopic rod is fixedly connected with the lower supporting rod, the thin end of the telescopic rod is fixedly connected with the connecting frame, and the upper part of the upper supporting rod reliably supports against the pipe wall, therefore, when the thin end of the telescopic rod is contracted to the thick end of the telescopic rod, the thin end of the telescopic rod can drive the connecting frame to move rightwards (shown in figure 1), further drives all parts except the thick end of the telescopic rod and the pushing and switching rod to move rightwards, the sliding ring moves leftwards relative to the outer slide rail until the sliding ring falls into a left transposition ring (shown in figure 1), under the reset action of the extension spring, the upper support rod moves inwards along the radial direction and is finally stopped at the contact of the sliding ring and the inner side sliding rail, the whole gravity of the device is reliably supported on the positioning ejector rod, the top plate is not stressed any more, and the device finishes walking at one position. At this moment, the telescopic link begins the extension motion, and the telescopic link butt moves to the right promptly, and the telescopic link tip is motionless, and the slip ring moves to the right on the inboard slide rail, and the final albizzia ring is motionless at the right side transposition cyclic part of inboard slide rail, and what goes on simultaneously with this: the double-end motor rotates, and the laser cleaning head continues to clean the next section of pipe wall. After the laser cleaning head rotates for a circle, the next far-stop section jacks the sliding ring back to the outer side sliding rail through the jacking block, and therefore the next device walking is carried out.
It should be noted that the movement process of the device is completely reversible, so that after the use, all the parts can return to the initial position under the action of the compression spring only by loosening the adjusting screw.
Firstly: the walking part of the invention is arranged in the cleaned pipeline, so the coaxiality between the walking part and the positioning ring can be ensured to a great extent, secondly, the positioning ejector rod and the positioning boss are rigidly connected, so the coaxiality of the whole device can be ensured not to be influenced by the gravity of the device to a great extent, and secondly, the whole device adopts an adjustable self-driving mode, so the invention can be suitable for cleaning pipelines with different sizes under various conditions.
As a further scheme of the invention: the laser cleaning head is characterized by comprising a turntable body, a connecting block, a set screw and a sliding groove, wherein the sliding groove is formed in the turntable body, the connecting block is arranged in the sliding groove in a sliding mode, the connecting block is fixedly arranged on the laser cleaning head, and the set screw is in threaded connection with the connecting block. When the state of facula needs to be changed according to different stains, the position of the laser cleaning head can be adjusted by adjusting the set screw.
As a further scheme of the invention: the upper end face of the positioning jacking rod is rotatably provided with a rolling ball, and the lower end face of the positioning jacking rod is provided with an oblique contact flange with the orientation consistent with the synchronous adjusting face of the positioning boss. The flange has the function of increasing the contact area when the positioning mandril works, thereby reducing the contact pressure.
As a further scheme of the invention: the upper end face of the top plate is a rough arc surface, so that the contact friction force is increased, and sufficient driving force is provided for the overall movement of the pushing device.
As a further scheme of the invention: one end of the adjusting screw, which is in contact with the fixing plate, is a spherical surface body, and the adjusting screw is a triangular thread. The spherical body can reduce the whole friction force between the adjusting screw and the device when the adjusting screw is adjusted to be in a dead locking position, and the triangular thread has self-locking performance, so that the device is stable and reliable in the motion process.
As a further scheme of the invention: the fixing frame is a circular ring-shaped fixing frame, and bosses which are abutted against the double-head motor are distributed in the circular ring at equal angles, so that the fixing reliability of the double-head motor is ensured.
Compared with the prior art, the invention has the beneficial effects that:
firstly: the walking part of the invention is arranged in the cleaned pipeline, so the coaxiality between the walking part and the positioning ring can be ensured to a great extent, secondly, the positioning ejector rod and the positioning boss are rigidly connected, so the coaxiality of the whole device can be ensured not to be influenced by the gravity of the device to a great extent, and secondly, the whole device adopts an adjustable self-driving mode, so the invention can be suitable for cleaning pipelines with different sizes under various conditions.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the general construction of the front view of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic view of the overall structure of the hidden pipeline of the present invention (after rotating 90 degrees clockwise);
FIG. 4 is a schematic axial cross-sectional view of the present invention (after 90 clockwise rotation);
FIG. 5 is an enlarged view of portion B of FIG. 4 according to the present invention;
FIG. 6 is a radial cross-sectional structural view of the synchronizer ring of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-pipeline, 2-laser cleaning head, 3-adjusting turntable, 3-1-turntable body, 3-2-connecting block, 3-3-set screw, 3-4-chute, 4-double-head motor, 5-fixing frame, 6-positioning ring, 7-positioning ejector rod, 8-compression spring, 9-spacing ring, 10-positioning boss, 11-top plate, 12-synchronizing ring, 13-inner side slide rail, 14-transposition ring, 15-mounting frame, 16-inner side slide rail, 17-telescopic rod thin end, 18-telescopic rod thick end, 19-connecting rod, 20-slide block, 21-fixing plate, 22-adjusting screw, 23-pushing rod, 23-upper supporting rod, 23-1-switching rod, 23-2-sliding ring, 23-3-baffle ring, 23-4-lower stay bar, 23-5-extension spring, 24-semicircular lifting ring, 25-first adjusting rod, 26-sliding wall, 27-second adjusting rod, 28-pull rod, 29-balance groove, 30-connecting frame, 31-connecting plate, 32-reduction box, 33-roller, 34-lifting groove, 35-top block, 36-cam, 37-synchronous adjusting surface and 38-embedded circular groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a laser cleaning device with adjustable light spot shape comprises a laser cleaning head 2 and an adjusting turntable 3, and is characterized in that; the laser cleaning head 2 is fixedly arranged on the adjusting turntable 3, the adjusting turntable 3 is fixedly arranged on an output shaft at one side of the double-head motor 4, the double-head motor 4 is fixedly arranged on the positioning rings 6 through the fixing frame 5, the number of the positioning rings 6 is two, the positioning rings are fixedly connected through a connecting plate 31, the circular wall of each positioning ring 6 is sleeved with a positioning ejector rod 7 through holes which are uniformly distributed at equal angles, the upper part of each positioning ejector rod 7 is fixedly provided with a limiting ring 9 with the radius larger than that of each through hole, the lower part of each positioning ejector rod 7 is connected to the inner wall of each positioning ring 6 through a compression spring 8, the corresponding limiting rings 9 on the two positioning rings 6 are jointly and fixedly provided with a mounting frame 15, the middle part of the mounting frame 15 is fixedly provided with an outer side slide rail 13 and an inner side slide rail 16, the outer side slide rail 13 and the inner side slide rail 16 are fixedly connected through two transposition rings 14, and the outer side slide rail 13 and the inner side slide rail 16 can be both; a fixing plate 21 is fixedly arranged on the outer end face of the positioning ring 6 on one side far away from the double-headed motor 4, and an adjusting screw 22 is arranged at the central position of the fixing plate 21 in a threaded manner; a pair of positioning bosses 10 are coaxially and slidably arranged between the two positioning rings 6 through sliders 20 fixedly arranged on the connecting plate 31, the positioning bosses 10 are fixedly connected through connecting rods 19, the axial center section of the positioning boss 10 close to the output end of the double-end motor 4 is provided with a through hole, and the large end face of the other limiting boss is in contact with an adjusting screw 22; the inclined plane of the limiting boss is a synchronous adjusting surface 37, and the height of the positioning mandril 7 in the two positioning rings 6 is adjusted through the synchronous adjusting surface 37;
the connecting plates 31 in the two positioning rings 6 are also fixedly provided with connecting frames 30, one section of the connecting frame 30 close to the double-end motor 4 is fixedly connected with a thin end 17 of a telescopic rod, the thin end of the telescopic rod is sleeved in the thick end of the telescopic rod, and pushing and switching rods 23 with the same number as the positioning ejector rods 7 on the single positioning ring 6 are uniformly distributed on the outline of the thick end of the telescopic rod at equal angles;
the pushing and switching rod 23 comprises a lower support rod 23-4 fixedly connected with the thick end 18 of the telescopic rod, the upper end of the lower support rod 23-4 is sleeved in a hole at the lower end of the upper support rod 23-1 and is connected with the upper wall of the hole of the upper support rod 23-1 through an extension spring 23-5, the upper end surface of the upper support rod 23-1 is fixedly provided with a top plate 11, the middle part of the upper support rod 23-1 is fixedly provided with a sliding ring 23-2, the outer diameter of which is greater than the middle distance between the outer side sliding rail 13 and the inner side sliding rail 16, the inner diameter of which is less than the inner diameter of the upper side of the transposition ring 14 and is greater than the inner diameter of the lower side of the transposition; the baffle ring 23-3 is connected with a reset device of the push switching rod 23 through the contact of the lower end surface;
the reset device of the push switching rod 23 comprises a synchronizing ring 12 fixedly arranged on a connecting plate 31, the middle position of the synchronizing ring 12 is provided with a through hole coaxial with an output shaft of the double-head motor 4, an embedded circular groove 38 and lifting grooves 34 which are uniformly distributed at equal angles, the inner diameter of the embedded circular groove 38 is matched with the distance between a far rest section of a cam 36 and a rotation center, the cam 36 is fixedly arranged at the output end of a reduction gearbox 32, and the reduction gearbox 32 is fixedly arranged on the other output shaft of the double-head motor 4; the number of the far rest sections and the number of the lifting grooves 34 of the cam 36 are equal to the number of the pushing switching rods 23; a top block 35 is arranged in the lifting groove 34 in a sliding mode, the upper end face of the top block 35 is hinged with a second adjusting rod 27, and the upper end of the second adjusting rod 27 is hinged with a first adjusting rod 25; the upper end of the first adjusting rod 25 is hinged with a semicircular lifting ring 24, the semicircular lifting ring 24 is arranged on a sliding wall 26 fixedly connected with the synchronous ring 12 in a sliding manner, a hinge shaft of the first adjusting rod 25 and the second adjusting rod 27 is hinged with a pull rod 28, the other end of the pull rod 28 is fixedly provided with a roller 33, and the roller 33 is arranged in a balance groove 29 arranged in the positioning boss 10 in a rolling manner;
the size of the lifting ring part of the semicircular lifting ring 24 is matched with that of the baffle ring 23-3;
the contour of the synchronous adjustment surface 37 matches the contour of a sine function curve with the sum of the lengths of the first and second adjustment levers 25 and 27 as the hypotenuse; the lifting characteristic of the semicircular lifting rod is ensured to be the same as the driving characteristic of the synchronous adjustment surface 37, and the position of the semicircular lifting rod relative to the pushing switching rod 23 is ensured to be unchanged.
The reduction ratio of the reduction gearbox 32 is equal to the number of the pushing and switching rods 23;
when the sliding ring 23-2 is in contact with the inner side sliding rail 16, the double-end motor 4 rotates, and when the sliding ring 23-2 is in contact with the outer side sliding rail 13, the double-end motor 4 stops rotating, and the telescopic rod moves. (this section can be reliably controlled only by mounting the contact pads of the motor on the lower surface of the slip ring 23-2 and the inner rail 16).
In order to solve the problem that the rope threading process is difficult due to the fact that the walking mode in the scheme is dragging, particularly for a long pipeline 1 or a turning pipeline 1, the operation difficulty is extremely high; secondly, its running gear's walking process is mainly at unclean face, dirt on the pipe face leads to running gear to hardly guarantee with the coaxial steady motion of pipe, and again, because the compression pole leans on the spring to support completely, so the spring deformation of downside is obviously greater than the upside, this also can lead to the motion in-process, the laser emission end can not be coaxial with the body constantly, and is further, because the actual distance of every part is different on laser emission end and the pipe wall, also can lead to the threshold value different to cause the not good problem of the clean effect in pipeline 1. The solution presented by the present invention is as follows:
when in use: the method mainly comprises the following steps of cleaning stains on the pipe wall near the port of the pipeline 1 by the laser cleaning head 2, and putting the whole device into the pipe, wherein the actual use of the method mainly comprises the following two processes: adjusting and positioning the mandril 7 and moving the whole device.
Adjusting and positioning the mandril 7: by rotating the adjusting screw 22, the adjusting screw 22 is forced to move forwards against the positioning boss 10 along the sliding block 20 relative to the positioning ring 6; therefore, the synchronous adjusting surface 37 of the positioning boss 10 contacts the lower end surface of the positioning ejector rod 7, the positioning ejector rod 7 is further forced to expand along the radial direction of the positioning ring 6 along the through hole on the positioning ring 6, and the rod head part of the positioning ejector rod 7 is completely contacted with the pipe wall, and it needs to be noted that the positioning bosses 10 are fixedly connected through the connecting rod 19, so that the positioning bosses 10 can simultaneously jack up the positioning ejector rods 7 on the two positioning rings 6, and a stable state coaxial with the pipeline 1 is achieved; simultaneously with this, the following steps are carried out: in the process of expanding the positioning ejector rod 7, the limiting ring 9 on the positioning ejector rod 7 drives the mounting frame 15 fixed on the positioning ejector rod 7 to move upwards, and the moving displacement is equal to the radial displacement of the positioning ejector rod 7; the further inner side slide rail 16 drives the upper support rod 23-1 to move by the same displacement amount through the slide ring 23-2, so that the relative positions of the slide ring 23-2, the mounting frame 15 and the limiting ring 9 are ensured to be unchanged; furthermore, at the same time: as shown in fig. 5, the displacement amount of the positioning boss 10 with respect to the positioning ring 6 is equal to the displacement amount thereof with respect to the synchronizing ring 12, i.e., the pull rod 28 moves rightwards, thereby driving the semicircular lifting rod to move upwards, because the contour curve of the synchronous adjusting surface 37 is matched with the contour curve of a sine function curve with the sum of the lengths of the first adjusting rod 25 and the second adjusting rod 27 as the inclined edge, the roller 33 actually slides up and down in the balance groove 29 to balance the longitudinal displacement of the hinge position of the first adjustment lever 25 and the second adjustment lever 27, the relationship between the transverse displacement of the roller 33 and the longitudinal displacement of the semi-circular lifting ring 24 is matched with the synchronous adjusting surface 37, and the radial displacement of the positioning mandril 7 is directly determined by the outer contour of the synchronous adjusting surface 37, so the radial displacement of the positioning mandril 7 is equal to the longitudinal displacement of the semi-circular lifting rod. Therefore: the radial relative positions of the sliding ring 23-2, the semicircular lifting rod, the mounting frame 15 and the limiting ring 9 cannot be changed along with the size of the pipe diameter.
The whole moving process of the device is as follows: firstly, the laser cleaning head 2 rotates a circle around the axis of the double-head motor 4 under the driving of the output end of the double-head motor 4 to clean the inner wall of the pipeline 1 swept by the laser cleaning head 2, meanwhile, the output shaft at the other end of the double-head motor 4 drives the cam 36 to rotate through the reduction box 32, the far rest section on the cam 36 pushes the jacking block 35 to move along the radial direction, so that, as shown in fig. 5, it will move upward against the first adjustment lever 25, the half-round lift lever, the second adjustment lever 27 and the roller 33, the semicircular lifting rod lifts the sliding ring 23-2 of the upper support rod 23-1 from the inner side guide rail to the outer side guide rail through the baffle ring 23-3, the top plate 11 on the upper support rod 23-1 can reliably support the inner wall of the pipeline 1, and the extension spring 23-5 in the upper support rod 23-1 and the lower support rod 23-4 can be further extended to store force; when the lower bottom surface of the slip ring 23-2 contacts the upper surface of the outer slide rail 13, the double-headed motor 4 stops working, and the telescopic rod starts moving: firstly, the thin end 17 of the telescopic rod will move rightwards (shown in fig. 1) relative to the thick end 18 of the telescopic rod, because the thick end 18 of the telescopic rod is fixedly connected with the lower support rod 23-4, the thin end 17 of the telescopic rod is fixedly connected with the connecting frame 30, and the upper part of the upper support rod 23-1 reliably supports against the tube wall, when the thin end 17 of the telescopic rod retracts towards the thick end 18 of the telescopic rod, the thin end 17 of the telescopic rod will carry the connecting frame 30 rightwards (shown in fig. 1), further drive all the parts except the thick end 18 of the telescopic rod and the pushing switch rod 23 to move rightwards, and at the same time, the sliding ring 23-2 will move leftwards relative to the outer slide rail 13 until the sliding ring 23-2 falls into the left shifting ring 14 (shown in fig. 1), under the reset action of the tension spring 23-5, the upper support rod 23-1 moves inwards along the radial direction, and finally ends at the sliding ring 23-, at the moment, the whole gravity of the device is reliably supported on the positioning ejector rod 7, the top plate 11 is not stressed any more, and the device finishes walking at one position. At this time, the telescopic rod starts to extend, i.e. the thick end 18 of the telescopic rod moves to the right, the thin end 17 of the telescopic rod is still, the sliding ring 23-2 moves to the right on the inner slide rail 16, and finally the movable ring is still at the right shifting ring 14 part of the inner slide rail 16, and simultaneously: the double-end motor 4 rotates, and the laser cleaning head 2 continues to clean the next section of pipe wall. After the laser cleaning head 2 rotates for one circle, the next far-stopping section pushes the sliding ring 23-2 back to the outer side sliding rail 13 through the jacking block 35, so that the next device walking is performed.
It should be noted that the movement of the device is completely reversible, so that after use, the adjusting screw 22 is only loosened, and all the parts can return to the initial position under the action of the compression spring 8.
Firstly: the walking part of the invention is arranged in the cleaned pipeline 1, so the coaxiality between the walking part and the positioning ring 6 can be ensured to a great extent, secondly, the positioning ejector rod 7 is rigidly connected with the positioning boss 10, so the coaxiality of the whole device can be ensured not to be influenced by the gravity of the device to a great extent, and secondly, the whole device adopts an adjustable self-driving mode, so the invention can be suitable for cleaning pipelines 1 with different sizes under various conditions.
As a further scheme of the invention: the adjusting rotary table 3 comprises a rotary table body 3-1, a connecting block 3-2, a set screw 3-3 and a sliding groove 3-4, the sliding groove 3-4 is formed in the rotary table body 3-1, the connecting block 3-2 is arranged in the sliding groove 3-4 in a sliding mode, the connecting block 3-2 is fixedly arranged on the laser cleaning head 2, and the set screw 3-3 is in threaded connection with the connecting block 3-2. When the state of the light spot needs to be changed according to different stains, the position of the laser cleaning head 2 can be adjusted by adjusting the set screws 3-3.
As a further scheme of the invention: the upper end face of the positioning jacking rod is rotatably provided with a rolling ball, and the lower end face of the positioning jacking rod is provided with an oblique contact flange facing to the same direction as the synchronous adjusting surface 37 of the positioning boss 10. The purpose of the flange is to increase the contact area when the positioning ram 7 is in operation, thereby reducing the contact pressure.
As a further scheme of the invention: the upper end surface of the top plate 11 is a rough arc surface, so that the contact friction force is increased, and a sufficient driving force is provided for the overall movement of the pushing device.
One end of the adjusting screw 22 contacting the fixing plate 21 is a spherical body, and the adjusting screw 22 is a triangular thread. The spherical body can reduce the whole friction force between the adjusting screw 22 and the device when the adjusting screw is adjusted to be in a dead locking position, and the triangular thread has self-locking performance, so that the stability and reliability of the device in the motion process can be ensured.
As a further scheme of the invention: the fixing frame 5 is a circular ring-shaped fixing frame 5, and bosses which are abutted against the double-head motor 4 are distributed in the circular ring at equal angles, so that the fixing reliability of the double-head motor 4 is ensured.
The working principle is as follows: adjusting and positioning the mandril 7: by rotating the adjusting screw 22, the adjusting screw 22 is forced to move forwards against the positioning boss 10 along the sliding block 20 relative to the positioning ring 6; therefore, the synchronous adjusting surface 37 of the positioning boss 10 contacts the lower end surface of the positioning ejector rod 7, the positioning ejector rod 7 is further forced to expand along the radial direction of the positioning ring 6 along the through hole on the positioning ring 6, and the rod head part of the positioning ejector rod 7 is completely contacted with the pipe wall, and it needs to be noted that the positioning bosses 10 are fixedly connected through the connecting rod 19, so that the positioning bosses 10 can simultaneously jack up the positioning ejector rods 7 on the two positioning rings 6, and a stable state coaxial with the pipeline 1 is achieved; simultaneously with this, the following steps are carried out: in the process of expanding the positioning ejector rod 7, the limiting ring 9 on the positioning ejector rod 7 drives the mounting frame 15 fixed on the positioning ejector rod 7 to move upwards, and the moving displacement is equal to the radial displacement of the positioning ejector rod 7; the further inner side slide rail 16 drives the upper support rod 23-1 to move by the same displacement amount through the slide ring 23-2, so that the relative positions of the slide ring 23-2, the mounting frame 15 and the limiting ring 9 are ensured to be unchanged; furthermore, at the same time: as shown in fig. 5, the displacement amount of the positioning boss 10 with respect to the positioning ring 6 is equal to the displacement amount thereof with respect to the synchronizing ring 12, i.e., the pull rod 28 moves rightwards, thereby driving the semicircular lifting rod to move upwards, because the contour curve of the synchronous adjusting surface 37 is matched with the contour curve of a sine function curve with the sum of the lengths of the first adjusting rod 25 and the second adjusting rod 27 as the inclined edge, the roller 33 actually slides up and down in the balance groove 29 to balance the longitudinal displacement of the hinge position of the first adjustment lever 25 and the second adjustment lever 27, the relationship between the transverse displacement of the roller 33 and the longitudinal displacement of the semi-circular lifting ring 24 is matched with the synchronous adjusting surface 37, and the radial displacement of the positioning mandril 7 is directly determined by the outer contour of the synchronous adjusting surface 37, so the radial displacement of the positioning mandril 7 is equal to the longitudinal displacement of the semi-circular lifting rod. Therefore: the radial relative positions of the sliding ring 23-2, the semicircular lifting rod, the mounting frame 15 and the limiting ring 9 cannot be changed along with the size of the pipe diameter.
The whole moving process of the device is as follows: firstly, the laser cleaning head 2 rotates a circle around the axis of the double-head motor 4 under the driving of the output end of the double-head motor 4 to clean the inner wall of the pipeline 1 swept by the laser cleaning head 2, meanwhile, the output shaft at the other end of the double-head motor 4 drives the cam 36 to rotate through the reduction box 32, the far rest section on the cam 36 pushes the jacking block 35 to move along the radial direction, so that, as shown in fig. 5, it will move upward against the first adjustment lever 25, the half-round lift lever, the second adjustment lever 27 and the roller 33, the semicircular lifting rod lifts the sliding ring 23-2 of the upper support rod 23-1 from the inner side guide rail to the outer side guide rail through the baffle ring 23-3, the top plate 11 on the upper support rod 23-1 can reliably support the inner wall of the pipeline 1, and the extension spring 23-5 in the upper support rod 23-1 and the lower support rod 23-4 can be further extended to store force; when the lower bottom surface of the slip ring 23-2 contacts the upper surface of the outer slide rail 13, the double-headed motor 4 stops working, and the telescopic rod starts moving: firstly, the thin end 17 of the telescopic rod will move rightwards (shown in fig. 1) relative to the thick end 18 of the telescopic rod, because the thick end 18 of the telescopic rod is fixedly connected with the lower support rod 23-4, the thin end 17 of the telescopic rod is fixedly connected with the connecting frame 30, and the upper part of the upper support rod 23-1 reliably supports against the tube wall, when the thin end 17 of the telescopic rod retracts towards the thick end 18 of the telescopic rod, the thin end 17 of the telescopic rod will carry the connecting frame 30 rightwards (shown in fig. 1), further drive all the parts except the thick end 18 of the telescopic rod and the pushing switch rod 23 to move rightwards, and at the same time, the sliding ring 23-2 will move leftwards relative to the outer slide rail 13 until the sliding ring 23-2 falls into the left shifting ring 14 (shown in fig. 1), under the reset action of the tension spring 23-5, the upper support rod 23-1 moves inwards along the radial direction, and finally ends at the sliding ring 23-, at the moment, the whole gravity of the device is reliably supported on the positioning ejector rod 7, the top plate 11 is not stressed any more, and the device finishes walking at one position. At this time, the telescopic rod starts to extend, i.e. the thick end 18 of the telescopic rod moves to the right, the thin end 17 of the telescopic rod is still, the sliding ring 23-2 moves to the right on the inner slide rail 16, and finally the movable ring is still at the right shifting ring 14 part of the inner slide rail 16, and simultaneously: the double-end motor 4 rotates, and the laser cleaning head 2 continues to clean the next section of pipe wall. After the laser cleaning head 2 rotates for one circle, the next far-stopping section pushes the sliding ring 23-2 back to the outer side sliding rail 13 through the jacking block 35, so that the next device walking is performed.
It should be noted that the movement of the device is completely reversible, so that after use, the adjusting screw 22 is only loosened, and all the parts can return to the initial position under the action of the compression spring 8.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. A laser cleaning device with adjustable light spot shape comprises a laser cleaning head and an adjusting turntable, and is characterized in that the laser cleaning head is provided with a light spot shape adjusting mechanism; the laser cleaning head is fixedly arranged on the adjusting turntable which is fixedly arranged on an output shaft at one side of the double-head motor, the double-head motor is fixedly arranged on the positioning rings through the fixing frame, the number of the positioning rings is two, and is fixedly connected through a connecting plate, the circular wall of each positioning ring is sleeved with a positioning ejector rod through holes which are uniformly distributed at equal angles, the upper part of the positioning ejector rod is fixedly provided with a limiting ring with the radius larger than that of the through hole, the lower part of the positioning ejector rod is connected with the inner wall of the positioning ring through a compression spring, the corresponding limiting rings on the two positioning rings are jointly and fixedly provided with a mounting frame, an inner side slide rail and an inner side slide rail are fixedly arranged at the middle part of the mounting frame, the inner side slide rail and the inner side slide rail are fixedly connected through two transposition rings, and the inner side slide rail can be both connected with a pushing switching rod in a sliding manner; a fixing plate is fixedly arranged on the outer end face of the positioning ring at one side far away from the double-headed motor, and an adjusting screw is arranged at the center of the fixing plate in a threaded manner; a pair of positioning bosses are coaxially and slidably arranged between the two positioning rings through a sliding block fixedly arranged on the connecting plate, the positioning bosses are fixedly connected through a connecting rod, a through hole is formed in the axial section of each positioning boss close to the output end of the double-end motor, and the large end face of the other limiting boss is in contact with the adjusting screw; the inclined plane of the limiting boss is a synchronous adjusting plane, and the height of the positioning ejector rod in the two positioning rings is adjusted through the synchronous adjusting plane;
the connecting plates in the two positioning rings are also fixedly provided with connecting frames, one section of the connecting frame, which is close to the double-head motor, is fixedly connected with a thin end of a telescopic rod, the thin end of the telescopic rod is sleeved in a thick end of the telescopic rod, and pushing switching rods with the same number as that of the positioning ejector rods on a single positioning ring are uniformly distributed on the outline of the thick end of the telescopic rod at equal angles;
the pushing switching rod comprises a lower support rod fixedly connected with the thick end of the telescopic rod, the upper end of the lower support rod is sleeved in a hole in the lower end of the upper support rod and is connected with the upper wall of the hole of the upper support rod through an extension spring, a top plate is fixedly arranged on the upper end face of the upper support rod, a sliding ring with the outer diameter larger than the middle distance between the inner side sliding rail and the inner side sliding rail, smaller than the inner diameter of the upper side of the transposition ring and larger than the inner diameter of the lower side of the transposition ring is fixedly arranged in the middle of the upper support rod, and a retaining ring is fixedly arranged at; the baffle ring is connected with a pushing switching rod resetting device through the contact of the lower end surface;
the push switching rod resetting device comprises a synchronous ring fixedly arranged on a connecting plate, a through hole and an embedded circular groove which are coaxial with the output shaft of the motor and lifting grooves which are uniformly distributed at equal angles are formed in the middle of the synchronous ring, the inner diameter of the embedded circular groove is matched with the distance between the far rest section of the cam and the rotation center, the cam is fixedly arranged at the output end of a reduction gearbox, and the reduction gearbox is fixedly arranged on the other output shaft of the double-head motor; the number of the far rest sections and the number of the lifting grooves of the cam are equal to the number of the pushing switching rods; a jacking block is arranged in the lifting groove in a sliding mode, a second adjusting rod is hinged to the upper end face of the jacking block, and a first adjusting rod is hinged to the upper end of the second adjusting rod; the upper end of the first adjusting rod is hinged with a semicircular lifting ring, the semicircular lifting ring is arranged on a sliding wall fixedly connected with the synchronizing ring in a sliding mode, a hinge shaft of the first adjusting rod and the second adjusting rod is hinged with a pull rod, the other end of the pull rod is fixedly provided with a roller, and the roller is arranged in a balance groove formed in the positioning boss in a rolling mode;
the size of the lifting ring part of the semicircular lifting ring is matched with that of the baffle ring;
the contour curve of the synchronous adjusting surface is matched with the contour of a sine function curve taking the sum of the length of the first adjusting rod and the length of the second adjusting rod as a bevel edge;
the reduction ratio of the reduction gearbox is equal to the number of the pushing and switching rods;
when the slip ring contacts with the inside slide rail, the double-end motor rotates, and when the slip ring contacts with the outside slide rail, the double-end motor stops rotating, and the telescopic rod moves.
2. The laser cleaning device with adjustable light spot shape according to claim 1, wherein: the laser cleaning head is characterized by comprising a turntable body, a connecting block, a set screw and a sliding groove, wherein the sliding groove is formed in the turntable body, the connecting block is arranged in the sliding groove in a sliding mode, the connecting block is fixedly arranged on the laser cleaning head, and the set screw is in threaded connection with the connecting block.
3. The laser cleaning device with adjustable light spot shape according to claim 1, wherein: the upper end face of the positioning jacking rod is rotatably provided with a rolling ball, and the lower end face of the positioning jacking rod is provided with an oblique contact flange with the orientation consistent with the synchronous adjusting face of the positioning boss.
4. The laser cleaning device with adjustable light spot shape according to claim 1, wherein: the upper end surface of the top plate is a rough arc surface.
5. The laser cleaning device with adjustable light spot shape according to claim 1, wherein: one end of the adjusting screw, which is contacted with the fixing plate, is a spherical body.
6. The laser cleaning device with adjustable light spot shape according to claim 1, wherein: the fixing frame is a circular ring-shaped fixing frame, and bosses which are used for supporting the double-head motor are distributed in the circular ring at equal angles.
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| CN202010774329.9A CN111921988B (en) | 2020-08-04 | 2020-08-04 | Laser belt cleaning device with adjustable facula form |
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| CN202010774329.9A CN111921988B (en) | 2020-08-04 | 2020-08-04 | Laser belt cleaning device with adjustable facula form |
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| CN114011813A (en) * | 2021-10-11 | 2022-02-08 | 广东职业技术学院 | Pipeline cleaning robot |
| CN114042575A (en) * | 2021-12-22 | 2022-02-15 | 刘惠文 | Environment-friendly spraying device and using method thereof |
| CN114472376A (en) * | 2022-04-07 | 2022-05-13 | 启迪未来(天津)国际企业管理合伙企业(有限合伙) | Pipeline cleaning device and pipeline cleaning system |
| CN116351628A (en) * | 2023-06-01 | 2023-06-30 | 江苏金日管业有限公司 | Stainless steel pipe flush coater |
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| CN111921988B (en) | 2021-09-03 |
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