A reflective laser cleaning device suitable for small-sized metal pipes

Abstract

The present invention discloses a reflective laser cleaning device suitable for small-sized metal pipes, comprising a front shell, a rear shell and a metal pipe, a central axis is arranged at the bottom of the rear shell, the bottom of the central axis is connected to the front shell, a compression spring is fixedly installed on one side of the inner wall of the central axis, and one end of the compression spring is rotatably connected to a spring lifting wheel. The present invention relates to the technical field of pipeline cleaning equipment. The reflective laser cleaning device suitable for small-sized metal pipes transmits a laser beam to a laser emission port through an optical fiber, and the laser emission port transmits the laser beam to a reflector, which is reflected by the reflector and focused on the inner wall of the metal pipe to be cleaned, and the reflective laser is used to clean the inner wall of the object to be cleaned, thereby improving the cleaning quality and cleaning efficiency of the laser, and the control system is used to control the action of the laser and the laser cleaning device.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline cleaning equipment, and in particular to a reflective laser cleaning equipment suitable for small-sized 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. Metal pipelines will rust if exposed to the air for a long time. Pipes will also be attached with oil stains in 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.

[0003] Traditional cleaning technologies mostly use mechanical cleaning, chemical cleaning, ultrasonic cleaning and other methods.

[0004] Traditional cleaning technology not only produces a lot of noise and the use of chemical cleaning methods will make the residual waste liquid unprocessable, causing great pollution to the surrounding environment, but also has very low efficiency and requires huge manpower and financial resources. Even aviation components with high precision requirements are damaged. Under many factors, traditional cleaning methods cannot meet the requirements of cleanliness, environmental protection and high precision, and its use is greatly limited. With the great progress of laser technology, environmentally friendly and energy-saving laser cleaning technology has emerged. These limitations are both challenges and opportunities for laser cleaning technology. It is regarded as the most promising green cleaning technology in the 21st century that may partially or completely replace traditional cleaning methods.

[0005] Laser cleaning technology is a new type of surface treatment technology that uses the interaction between light and materials. As a new type of cleaning technology with many outstanding advantages such as non-contact, green and environmentally friendly, good cleaning effect, and wide application range, it has shown broad prospects in many fields such as industry, aviation, and cultural relics protection. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention provides a reflective laser cleaning device suitable for small-sized metal pipes, which solves the problems of not being able to clean the inside of the metal pipe well, not being able to achieve large-scale cleaning of the inner wall of small-sized metal pipes, and reducing the laser cleaning quality and efficiency of small and medium-sized pipes.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a reflective laser cleaning device suitable for small-sized metal pipes, comprising a front shell, a rear shell and a metal pipe, a central axis is arranged at the bottom of the rear shell, the bottom of the central axis is connected to the front shell, a compression spring is fixedly installed on one side of the inner wall of the central axis, one end of the compression spring is rotatably connected to a spring lifting wheel, one side of the spring lifting wheel passes through the central axis and extends to the outside of the central axis, a front brushless hollow cup motor is fixedly connected between the two sides of the inner wall of the front shell, a front gear box is arranged between the two sides of the inner wall of the front shell, and the front gear box is fixedly connected between the two sides of the inner wall of the front shell. A mirror frame shaft is fixedly installed at the bottom of the front gear box, a mirror frame is sleeved on the outer surface of the bottom end of the mirror frame shaft, and a reflector is arranged at the bottom of the mirror frame, a rear brushless hollow cup motor is fixedly connected between the two sides of the inner wall of the rear shell body, a rear gear box is arranged between the two sides of the inner wall of the rear shell body and at the top of the rear brushless hollow cup motor, a worm is arranged at the top of the rear gear box, the top of the worm is rotatably connected to the top of the inner wall of the rear shell body, a worm wheel is rotatably connected to the top of one side of the inner wall of the rear shell body, a wheel axle is fixedly connected to the axis center of the worm wheel, and a laser emission port is fixedly installed at the bottom of the inner surface of the metal pipe.

[0008] Furthermore, the top of the front gear box is connected to the output shaft of the front brushless hollow cup motor, and the bottom of the rear gear box is connected to the output shaft of the rear brushless hollow cup motor.

[0009] Furthermore, the front and back sides of the front shell are rotatably connected to front supporting wheels via support rods.

[0010] Furthermore, the outer surface of the worm wheel meshes with the outer surface of the worm.

[0011] Furthermore, both ends of the wheel axle pass through the rear housing and extend to the outside of the rear housing, and one end of the wheel axle extending to the outside of the rear housing is fixedly connected to a rear crawling wheel.

[0012] Furthermore, the top end of the rear shell is connected to a ventilation pipe.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The reflective laser cleaning device, which is suitable for small-sized metal pipes, can control the opening and closing of the laser and adjust the output parameters of the laser beam through a control system, and set different laser energy densities for different materials of the object to be cleaned, so that the laser energy density irradiated on the inner wall of the metal pipe is greater than the cleaning threshold of the material of the object to be cleaned, and less than the damage threshold of the base material of the metal pipe, so as to achieve the purpose of cleaning without damaging the pipe. In addition, the reflective laser cleaning design is used, mainly including a laser for outputting a laser beam, an energy transmission optical fiber for laser transmission, a laser cleaning device and a control system that can reciprocate in the pipe, a vent pipe for removing pollutants, and a spring lifting wheel that adapts to the pipe size. The control system controls the rotation rate of the concave mirror and the reciprocating motion rate of the crawling mechanism to realize the reflection of the laser beam and stably focus the laser beam on the inner surface of the metal pipe to be cleaned, so as to greatly improve the cleaning efficiency of the inner wall of the small-sized metal pipe, so as to improve the laser cleaning quality and efficiency of small and medium-sized pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of a reflective laser cleaning device according to the present invention;

[0016] Figure 2 It is a plan view of the reflective laser cleaning device of the present invention;

[0017] Figure 3 for Figure 2 A-A sectional view;

[0018] Figure 4 is a cross-sectional view of the overall structure of the reflective laser cleaning device of the present invention;

[0019] Figure 5 yes Figure 4 B-B sectional view;

[0020] Figure 6 yes Figure 4 C-C section view;

[0021] Figure 7 This is a reference diagram of the reflective laser cleaning device of the present invention being placed in a metal pipe.

[0022] In the figure: 101, laser emission port; 102, metal pipe; 1, reflector; 2, mirror frame; 3, mirror frame shaft; 4, front supporting wheel; 5, front gear box; 6, front brushless hollow cup motor; 7, center shaft; 8, compression spring; 9, spring lifting wheel; 10, front housing; 11, rear housing; 12, rear brushless hollow cup motor; 13, rear gear box; 14, worm; 15, worm wheel; 16, wheel axle; 17, rear crawling wheel; 18, ventilation pipe. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-7The present invention provides a technical solution: a reflective laser cleaning device suitable for small-sized metal pipes, comprising a front shell 10, a rear shell 11 and a metal pipe 102, the top of the rear shell 11 is connected with a vent pipe 18, the front and back of the front shell 10 are rotatably connected with front supporting wheels 4 through support rods, a central axis 7 is provided at the bottom of the rear shell 11, the bottom of the central axis 7 is connected to the front shell 10, a compression spring 8 is fixedly installed on one side of the inner wall of the central axis 7, one end of the compression spring 8 is rotatably connected with a spring lifting wheel 9, the compression deformation of the compression spring 8 can adapt to the pipe size, and the axial movement can be realized in the metal pipes 102 of different diameters, close to the inner wall under the drive of the rear brushless hollow cup motor 12. The crawling device composed of the pair of front supporting wheels 4, the pair of rear crawling wheels 17 and the spring lifting wheel 9 is a five-wheel micro crawling mechanism, which improves the stability of the support and can adapt to the size of the pipeline. One side of the spring lifting wheel 9 passes through the central axis 7 and extends to the outside of the central axis 7. The front brushless hollow cup motor 6 is fixedly connected between the two sides of the inner wall of the front shell 10. A front gear box 5 is arranged between the two sides of the inner wall of the front shell 10. The front gear box 5 drives the mirror frame assembly and then drives the reflector 1 to move at a set speed, so that there is no dead angle in the metal pipe 102. The top of the front gearbox 5 is connected to the output shaft of the front brushless hollow cup motor 6, the bottom of the rear gearbox 13 is connected to the output shaft of the rear brushless hollow cup motor 12, the rear brushless hollow cup motor 12 is connected to the control system, the control system controls the movement of the rear brushless hollow cup motor 12, the rear gearbox 13 is connected to the rear brushless hollow cup motor 12, the rear brushless hollow cup motor 12 drives the rear gearbox 13 to move, the rear gearbox 13 is connected to the pair of rear crawling wheels 17, and the pair of rear crawling wheels 17 are driven to move in the metal pipe 102 according to the set travel speed parameters. The interior of the laser cleaning device reciprocates along the axial direction of the pipeline. A pair of front supporting wheels 4 and a pair of rear crawling wheels 17 constitute a four-wheel supporting assembly, which is also the crawling mechanism of the laser cleaning device, ensuring the stability of the movement of the laser cleaning device and realizing reciprocating crawling. The rear gear box 13 is connected to the pair of rear crawling wheels 17 through a meshing worm gear 15 and a worm 14. The worm 14 is connected to the output end of the rear gear box 13. The pair of rear crawling wheels 17 share a wheel axle 16, which is installed on the rear housing 11 through the wheel axle 16 seat. The worm gear 15 is set on the wheel axle 16 seat. On the shaft 16, the rear gear box 13 drives the rear crawling wheel 17 to rotate through the worm gear 15 and the worm 14. The bottom of the front gear box 5 is fixedly installed with a mirror frame shaft 3. The outer surface of the bottom end of the mirror frame shaft 3 is sleeved with a mirror frame 2, and the bottom of the mirror frame 2 is provided with a reflector 1, which faces the laser emission port 101. The laser is used to generate a laser beam and transmit the laser beam to the laser emission port 101 through an optical fiber. The laser emission port 101 transmits the laser beam to the reflector 1, and after being reflected by the reflector 1, it focuses on the inner wall of the metal pipe 102 to be cleaned.Reflective laser is used to clean the objects to be cleaned on the inner wall, which improves the cleaning quality and cleaning efficiency of the laser. The control system is used to control the action of the laser and the laser cleaning device. A rear brushless hollow cup motor 12 is fixedly connected between the two sides of the inner wall of the rear shell 11. The rotating concave mirror reflects the laser and focuses it on the inner wall of the tube for laser rust removal. The rear brushless hollow cup motor 12 drives the worm 14 to drive the two wheels connected to the worm gear 15 as driving wheels. An air pipe is set inside and clean gas is introduced to generate positive pressure in the optical lens chamber. In order to prevent the optical lens from being contaminated, a Y-shape is set at one end of the pipeline, so that one path is for cables and trachea channels, and the other path is for exhaust gas discharge. A rear gear box 13 is set between the two sides of the inner wall of the rear housing 11 and at the top of the rear brushless hollow cup motor 12. A worm 14 is set at the top of the rear gear box 13. The top of the worm 14 is rotatably connected to the top of the inner wall of the rear housing 11. A worm wheel 15 is rotatably connected to the top of one side of the inner wall of the rear housing 11. The outer surface of the worm wheel 15 meshes with the outer surface of the worm 14. The axle 16 is fixedly connected at the axis center, and both ends of the axle 16 penetrate the rear shell 11 and extend to the outside of the rear shell 11. One end of the axle 16 extending to the outside of the rear shell 11 is fixedly connected to the rear crawling wheel 17. The bottom of the inner surface of the metal pipe 102 is fixedly installed with a laser emission port 101. The metal pipe 102 has an inner diameter of 20 mm. The control system can control the opening and closing of the laser and adjust the output parameters of the laser beam. Different laser energy densities are set for different materials of the objects to be cleaned, so that the laser energy density irradiated on the inner wall of the metal pipe 102 is greater than the cleaning threshold of the material to be cleaned, and less than the damage threshold of the base material of the metal pipe 102, so as to achieve the purpose of cleaning without damaging the pipe, control the laser output laser and the rotation of the reflector frame, and control the five wheels of the crawling mechanism, so that the crawling mechanism can reciprocate along the axial direction of the pipe inside the metal pipe 102, and timely adjust the output parameters of the laser and realize the control of the laser switch state.

[0025] During operation, the laser cleaning device is inserted into the metal pipe 102 to be cleaned, the laser is turned on, and the laser beam is emitted from the top of the metal pipe 102 through the laser emission port 101. The beam is adjusted so that it directly irradiates the center of the concave reflector 1. The laser and the front and rear brushless hollow cup motor parts are respectively connected to the control system. The control system controls the movement of the laser and the front and rear brushless hollow cup motors. The rear brushless hollow cup motor 12 drives the rear gear box 13, and the worm 14 drives the rear two rear crawling wheels 17 of the crawling device to reciprocate along the axial direction of the pipe inside the metal pipe 102 according to the set parameters. At the same time, the front brushless hollow cup motor 6 controls the rotation of the mirror frame shaft 3 to make the concave reflector 1 move at the set speed, and the laser beam emitted by the laser is reflected and focused on the inner wall of the metal pipe 102 for rust removal. A vent pipe 18 is set at the tail of the shell. The introduction of air can generate positive pressure in the optical lens chamber to prevent the cleaned pollutants from contaminating the optical lens.

[0026] 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.

[0027] 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 reflective laser cleaning device suitable for small-sized metal pipes, comprising a front housing (10), a rear housing (11) and a metal pipe (102), characterized in that: A central shaft (7) is arranged at the bottom of the rear housing (11), the bottom of the central shaft (7) is connected to the front housing (10), a compression spring (8) is fixedly installed on one side of the inner wall of the central shaft (7), one end of the compression spring (8) is rotatably connected to a spring lifting wheel (9), one side of the spring lifting wheel (9) passes through the central shaft (7) and extends to the outside of the central shaft (7), a front brushless hollow cup motor (6) is fixedly connected between the two sides of the inner wall of the front housing (10), a front gear box (5) is arranged between the two sides of the inner wall of the front housing (10), a mirror frame shaft (3) is fixedly installed on the bottom of the front gear box (5), a mirror frame (2) is sleeved on the outer surface of the bottom end of the mirror frame shaft (3), and A reflector (1) is arranged at the bottom of the mirror frame (2); a rear brushless hollow cup motor (12) is fixedly connected between the two sides of the inner wall of the rear housing (11); a rear gear box (13) is arranged between the two sides of the inner wall of the rear housing (11) and at the top of the rear brushless hollow cup motor (12); a worm (14) is arranged at the top of the rear gear box (13); the top of the worm (14) is rotatably connected to the top of the inner wall of the rear housing (11); a worm wheel (15) is rotatably connected to the top of one side of the inner wall of the rear housing (11); a wheel axle (16) is fixedly connected to the axis of the worm wheel (15); and a laser emission port (101) is fixedly installed at the bottom of the inner surface of the metal pipe (102); The front and back sides of the front housing (10) are rotatably connected to front supporting wheels (4) via supporting rods; Both ends of the wheel axle (16) penetrate the rear housing (11) and extend to the outside of the rear housing (11); one end of the wheel axle (16) extending to the outside of the rear housing (11) is fixedly connected to a rear crawling wheel (17).

2. The reflective laser cleaning device for small-sized metal pipes according to claim 1, characterized in that: The top of the front gear box (5) is connected to the output shaft of the front brushless hollow cup motor (6), and the bottom of the rear gear box (13) is connected to the output shaft of the rear brushless hollow cup motor (12).

3. The reflective laser cleaning device for small-sized metal pipes according to claim 1, characterized in that: The outer surface of the worm wheel (15) meshes with the outer surface of the worm (14).

4. The reflective laser cleaning device for small-sized metal pipes according to claim 1, characterized in that: The top end of the rear shell (11) is connected to a ventilation pipe (18).

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