A portable handheld laser cleaning device suitable for metal pipes

Abstract

The present invention discloses a portable handheld laser cleaning device suitable for metal pipes, comprising a laser, a laser interface, a laser cleaning head, a bearing mechanism and a control system, wherein a central axis is arranged on the bearing mechanism, the laser interface is fixedly connected to the bottom of the central axis, the laser cleaning head is fixedly connected to the top of the central axis, the laser cleaning head comprises a reflector, a collimator, a scanning galvanometer and a focusing lens, the reflector, the collimator and the scanning galvanometer are all arranged inside the laser cleaning head, the reflector, the collimator and the scanning galvanometer are arranged in sequence from the bottom to the top along the axial direction of the central axis, and the present invention relates to the field of pipeline cleaning technology. The portable handheld laser cleaning device suitable for metal pipes can clean pollutants at different parts of the inner wall of the metal pipe, and can adapt to the cleaning of pipes of different diameters, complete the cleaning work at a large angle, and greatly improve the efficiency of laser cleaning.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline cleaning, and in particular to a portable handheld laser cleaning device suitable for metal pipelines. Background Art

[0002] Pipelines play an important role in daily life and modern industrial applications. Pipelines are widely used in oil transportation, natural gas transportation, agricultural irrigation, etc. In order to prolong the service life of pipelines, they are often protected by paint, or metal pipelines will rust after being exposed to the air for a long time. Pipes will also be attached with oil stains during daily use. Large-area cleaning of pipelines is particularly important for the secondary use of pipelines. At this time, traditional cleaning methods cannot meet modern environmental protection requirements. Traditional cleaning technologies mostly use mechanical cleaning, chemical cleaning, ultrasonic cleaning and other methods.

[0003] Traditional cleaning technology not only generates a lot of noise, but also uses chemical cleaning methods that make it impossible to handle the residual waste liquid, causing great pollution to the surrounding environment. In addition, traditional cleaning technology is very inefficient, requires huge manpower and financial resources, and even has the risk of damaging high-precision aviation components. Under many factors, traditional cleaning methods cannot meet the requirements of cleanliness, environmental protection, and high precision, and its use is greatly restricted. With the great advancement of laser technology, environmentally friendly and energy-saving laser cleaning technology has come into being. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a portable handheld laser cleaning device suitable for metal pipes, which solves the problem that the laser cleaning device cannot be used to clean the pipes at present.

[0005] To achieve the above objectives, the present invention implements a portable handheld laser cleaning device suitable for metal pipes through the following technical scheme, including a laser, a laser interface, a laser cleaning head, a bearing mechanism and a control system, wherein a central axis is arranged on the bearing mechanism, the laser interface is fixedly connected to the bottom of the central axis, the laser cleaning head is fixedly connected to the top of the central axis, the laser cleaning head comprises a reflector, a collimator, a scanning galvanometer and a focusing lens, the reflector, the collimator and the scanning galvanometer are all arranged inside the laser cleaning head, the reflector, the collimator and the scanning galvanometer are arranged in sequence from the bottom to the top along the axial direction of the central axis, the bearing mechanism is a three-claw bearing mechanism, and the bearing mechanism has two structures The same three-claw bearing unit, the top of the center axis surface is fixedly connected with a fixed seat, the bearing mechanism includes a front fixed cylinder, a rear sliding cylinder, a wheel connecting rod, and a connecting support rod, the front fixed cylinder is fixedly installed on the center axis, the rear sliding cylinder slides on the center axis, there are three wheel connecting rods, one end of the wheel connecting rod is hinged on the front fixed cylinder, the other end of the wheel connecting rod is fixedly connected to the wheel, one end of the connecting support rod is hinged to the middle of the wheel connecting rod, and the other end of the connecting support rod is fixedly connected to the rear sliding cylinder, and the surface of the center axis and between the side opposite to the front fixed cylinder and between the side opposite to the rear sliding cylinder and the fixed seat are both sleeved with compression springs.

[0006] Furthermore, a motor is fixedly connected to the bottom of the central axis surface, a small gear is fixedly connected to the output shaft of the motor, a large gear is meshed on one side of the small gear, the axis of the large gear is fixedly connected to the surface of the central axis, and the bottom of the large gear is fixedly connected to the laser cleaning head.

[0007] Furthermore, the motor is a stepping motor.

[0008] Furthermore, the laser is a fiber laser.

[0009] Furthermore, there are three wheel connecting rods, and the angle between the three wheel connecting rods is 120°.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The portable handheld laser cleaning device suitable for metal pipes starts the laser light source through the control system, and the wheel with the connecting rod is driven by the pressure of the inner wall of the pipe to compress the spring of the compression structure at a fixed position to adapt to the diameter of the pipe. The light beam is input into the cleaning device through the laser output end, and the laser beam is transmitted to the reflector by the optical fiber. The reflector is set at a 45° angle with the incident laser beam, so that the incident laser beam and the outgoing laser beam can be emitted at 90°. The laser beam is received by the collimator to realize the collimated output of the beam, and the scanning galvanometer controls the movement of the beam and the focusing lens focuses the beam and outputs it on the inner wall of the metal pipe to be cleaned. The control system can control the laser cleaning head to rotate in the radial direction of the inner wall of the metal pipe to realize the cleaning of pollutants at different parts of the inner wall of the metal pipe. At the same time, it can adapt to the cleaning of pipes with different diameters, complete the cleaning work at a large angle, and greatly improve the efficiency of laser cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic structural diagram of a first embodiment of a portable handheld laser cleaning device for metal pipes according to the present invention;

[0013] Figure 2 This is a principle block diagram of Embodiment 1 of the portable handheld laser cleaning device for metal pipes of the present invention;

[0014] Figure 3 It is a front view of the bearing mechanism in the first embodiment of the portable handheld laser cleaning device for metal pipes of the present invention;

[0015] Figure 4 It is a schematic diagram of the overall structure of Embodiment 2 of the portable handheld laser cleaning device suitable for metal pipes of the present invention.

[0016] In the figure: 101-laser, 102-reflector, 103-collimating mirror, 104-scanning galvanometer, 105-focusing lens, 106-control system, 107-bearing mechanism, 1-laser cleaning head, 2-large gear, 3-small gear, 4-fixed seat, 5-stepping motor, 6-center axis, 7-laser interface, 8-front fixed cylinder, 9-wheel connecting rod, 10-wheel, 11-connecting support rod, 12-rear sliding cylinder, 13-compression spring. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] The invention provides a portable handheld laser cleaning device suitable for metal pipes.

[0019] First embodiment

[0020] Please refer to Figure 1-3In the first embodiment of the present invention, a portable handheld laser cleaning device suitable for metal pipes includes a laser 101, a laser interface 7, a laser cleaning head 1, a bearing mechanism 107 and a control system 106. The laser 1011 is externally arranged outside the metal pipe when in use. The inner diameter of the metal pipe is 60 mm. It is also suitable for large and medium-sized metal pipes with an inner diameter of 35-80 mm. A central axis 6 is arranged on the bearing mechanism 107. The laser interface 7 is fixedly connected to the bottom of the central axis 6. The laser cleaning head 1 is fixedly connected to the top of the central axis 6. The laser cleaning head includes a reflector 102, a collimator 103, a scanning galvanometer 104 and a focusing lens 105. The reflector 102, the collimator 103 and the scanning galvanometer 104 All are arranged inside the laser cleaning head 1. The reflector 102, the collimator 103 and the scanning galvanometer 104 are arranged in sequence from the bottom to the top along the axial direction of the central axis 6. The laser beam is transmitted to the reflector 102 by the optical fiber. The reflector 102 is arranged at a 45° angle with the central axis 6 of the bearing mechanism 107, so that the reflector 102 and the incident laser beam are at a 45° angle, so that the incident laser beam and the outgoing laser beam are emitted at 90°. The laser beam emitted from the reflector 102 is collimated by the collimator 103 to homogenize the laser beam energy and output the laser beam to the scanning galvanometer 104. The scanning galvanometer 104 is used to control the movement of the laser beam and transmit the laser beam to the focusing lens 105. The focusing lens 105 is embedded in the laser cleaning head 1. On the head 1, the focusing lens 105 focuses the laser beam emitted by the scanning galvanometer 104, and the focused laser beam irradiates the inner wall of the metal pipe to be cleaned, thereby laser cleaning the inner wall of the metal pipe. The bearing mechanism 107 is a three-claw bearing mechanism. The bearing mechanism 107 has two three-claw bearing units with the same structure. The bearing mechanism 107 has two three-claw bearing units with the same structure. The two three-claw bearing units are axially arranged along the central axis 6. The three-claw bearing units can move axially in metal pipes of different diameters close to the inner wall and play a supporting and positioning role. The two three-claw bearing units improve the stability of the supporting and positioning. The bearing mechanism 107 can have N three-claw bearing units with the same structure, and N is a self- Of course, N three-claw bearing units are axially arranged along the central axis 6. The three-claw bearing units can move axially in metal pipes of different diameters close to the inner wall and play a supporting and positioning role. The top of the surface of the central axis 6 is fixedly connected with a fixed seat 4. The bearing mechanism 107 includes a front fixed cylinder 8, a rear sliding cylinder 12, a wheel connecting rod 9, and a connecting support rod 11. The front fixed cylinder 8 is fixedly installed on the central axis 6, and the rear sliding cylinder 12 slides on the central axis 6. There are three wheel connecting rods 9. One end of the wheel connecting rod 9 is hinged to the front fixed cylinder 8, and the other end of the wheel connecting rod 9 is fixedly connected to the wheel 10. One end of the connecting support rod 11 is hinged to the middle part of the wheel connecting rod 9, and the other end of the connecting support rod 11 is fixedly connected to the rear sliding cylinder 12.The surface of the central shaft 6 and between the side opposite to the rear sliding cylinder 12 and the front fixed cylinder 8 and between the side opposite to the rear sliding cylinder 12 and the fixed seat 4 are sleeved with compression springs 13. The bottom of the surface of the central shaft 6 is fixedly connected with a motor 5 to achieve precise control. The output shaft of the motor 5 is fixedly connected with a small gear 3. A large gear 2 is meshed on one side of the small gear 3. The axis of the large gear 2 is fixedly connected to the surface of the central shaft 6. The bottom of the large gear 2 is fixedly connected to the laser cleaning head 1. The motor 5 is a stepping motor. The laser 1011 is a fiber laser, and a pulse laser, a carbon dioxide laser or a semiconductor laser can also be used. There are three wheel connecting rods 9, and the angle between the three wheel connecting rods 9 is 120°. The control system 106 and the laser 1011 are connected by communication to control the normal operation of the laser light source. The output parameters of the laser can be adjusted and the switching state of the laser can be controlled. The corresponding laser energy density is set for different materials, so that the laser energy density is greater than the cleaning threshold of the object to be cleaned and less than the damage threshold of the material substrate, so as to achieve the purpose of cleaning.

[0021] When in use, the laser cleaning device is extended into the metal pipe to be cleaned, and the wheel 10 with the wheel connecting rod 9 is driven by the pressure of the inner wall of the pipe to compress the compression spring 13 in a fixed position to adapt to the diameter of the pipe, and then the control system 106 is used to turn on the laser 1011 light source, and the light beam is input into the laser cleaning head 1 through the laser interface 7. The laser beam is transmitted to the reflector 102 by the optical fiber. The reflector is set at a 45° angle with the incident laser beam, so that the incident laser beam and the outgoing laser beam can be emitted at 90°. The laser beam is received by the collimator 103 to realize the collimated output of the beam, and the scanning galvanometer 104 controls the movement of the beam and the focusing lens 105 focuses the beam and outputs it on the inner wall of the metal pipe to be cleaned. The control system 106 controls the laser cleaning head 1 to rotate in the radial direction of the inner wall of the metal pipe through the gear rotation mechanism to realize the cleaning of pollutants in different parts of the inner wall of the metal pipe.

[0022] Second embodiment

[0023] Please refer to Figure 4 Based on the portable handheld laser cleaning device for metal pipes provided in the first embodiment of the present invention, the portable handheld laser cleaning device for metal pipes provided in the second embodiment of the present invention is different in that the bearing mechanism 107 has only one three-claw bearing unit, and the rear end of the compression spring 13 in the three-claw bearing unit is connected to the fixed seat 4 located at the rear and mounted on the central axis 6, which can be suitable for different usage environments.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable handheld laser cleaning device suitable for metal pipes, comprising a laser (101), a laser interface (7), a laser cleaning head (1), a bearing mechanism (107) and a control system (106), characterized in that: The bearing mechanism (107) is provided with a central axis (6); the laser interface (7) is fixedly connected to the bottom of the central axis (6); the laser cleaning head (1) is fixedly connected to the top of the central axis (6); the laser cleaning head comprises a reflecting mirror (102), a collimating mirror (103), a scanning galvanometer (104) and a focusing lens (105); the reflecting mirror (102), the collimating mirror (103) and the scanning galvanometer (104) are all arranged inside the laser cleaning head (1); the reflecting mirror (102), the collimating mirror (103) and the scanning galvanometer (104) are arranged in sequence from the bottom to the top along the axial direction of the central axis (6); the bearing mechanism (107) is a three-claw bearing mechanism; the bearing mechanism (107) has two three-claw bearing units with the same structure; the top of the surface of the central axis (6) is fixedly connected to a fixing seat (4); the axis The bearing mechanism (107) comprises a front fixed cylinder (8), a rear sliding cylinder (12), a wheel connecting rod (9), and a connecting support rod (11); the front fixed cylinder (8) is fixedly mounted on the central shaft (6); the rear sliding cylinder (12) slides on the central shaft (6); there are three wheel connecting rods (9); one end of the wheel connecting rod (9) is hinged on the front fixed cylinder (8); the other end of the wheel connecting rod (9) is fixedly connected to the wheel (10); one end of the connecting support rod (11) is hinged on the middle part of the wheel connecting rod (9); the other end of the connecting support rod (11) is fixedly connected to the rear sliding cylinder (12); a compression spring (13) is sleeved on the surface of the central shaft (6) and between the side opposite to the rear sliding cylinder (12) and the front fixed cylinder (8) and between the side opposite to the rear sliding cylinder (12) and the fixed seat (4); The bottom of the surface of the central shaft (6) is fixedly connected to a motor (5), the output shaft of the motor (5) is fixedly connected to a pinion (3), one side of the pinion (3) is meshed with a large gear (2), the axis of the large gear (2) is fixedly connected to the surface of the central shaft (6), and the bottom of the large gear (2) is fixedly connected to the laser cleaning head (1); There are three wheel connecting rods (9), and the angle between the three wheel connecting rods (9) is 120°.

2. The portable handheld laser cleaning device for metal pipes according to claim 1, characterized in that: The motor (5) is a stepping motor.

3. The portable handheld laser cleaning device for metal pipes according to claim 1, characterized in that: The laser (101) is a fiber laser.

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