Laser cladding processing device for thermocouple protection sleeve of circulating fluidized bed boiler

Abstract

The utility model relates to the technical field of laser cladding processing, in particular to a circulating fluidized bed boiler thermocouple protection sleeve laser cladding processing device which comprises an inverted-n-shaped bottom plate and a protection sleeve arranged on the upper portion of the bottom plate, a supporting frame is fixedly installed on the bottom plate, an electric telescopic rod is fixedly installed at the bottom end of the supporting frame, and the electric telescopic rod is fixedly installed on the bottom plate. And two symmetrically-arranged lead screws are rotationally installed on the bottom plate, an inverted-convex-shaped fixing plate is fixedly installed on the outer wall of the first threaded sleeve, and two horizontally-arranged bearing cylinders used for containing protective pipe sleeves are rotationally installed on the inner wall of the fixing plate. According to the laser cladding device, through rotation of the two bearing cylinders and rotation of the two lead screws, the bearing cylinders stably move in the rotating process, the outer wall of the protection pipe sleeve can be evenly subjected to laser cladding by a laser head, and the situation that due to the fact that the protection pipe sleeve is manually rotated, the rotation speed of the protection pipe sleeve is different, and the laser cladding efficiency is improved is avoided. And the phenomenon of non-uniformity of the protective pipe sleeve during laser cladding is avoided.

Description

Technical Field

[0001] This utility model relates to the field of laser cladding technology, and in particular to a laser cladding device for thermocouple protection sleeves in circulating fluidized bed boilers. Background Technology

[0002] Laser cladding, also known as laser bonding or laser coating, is a new surface modification technology. It involves adding cladding material to the surface of a substrate and using a high-energy-density laser beam to fuse it together with a thin layer on the substrate surface, thus forming a metallurgically bonded cladding layer on the substrate surface.

[0003] Existing technologies, such as the laser cladding powder feeding device, laser cladding equipment, and metal coating processing method disclosed in CN111441048B, involve metal powder entering the powder inlet under the influence of a carrier gas, flowing through a powder flow annular pipe, and then entering a powder distribution pipe before being ejected from the powder nozzle. This process concentrates the powder to form a relatively stable powder spot, reducing powder away from the laser irradiation position, improving the utilization rate of the metal powder, making the coating more uniform, and improving the coating quality. However, the following problems exist in its use:

[0004] The above technology involves spraying metal powder through a powder spraying nozzle, which aggregates to form a relatively stable powder spot, thus improving its utilization rate. However, it requires manual rotation of the pipe to be coated to ensure that the outer wall of the pipe is uniformly clad by the laser. But when the pipe is rotated manually, the rotation speed cannot be precisely controlled, resulting in unevenness during the laser cladding process. Utility Model Content

[0005] The purpose of this invention is to solve the problem of uneven laser cladding when manually rotating pipelines in the prior art, and to propose a laser cladding processing device for thermocouple protection sleeves in circulating fluidized bed boilers.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A laser cladding processing device for thermocouple protective sleeves in a circulating fluidized bed boiler includes an inverted P-shaped base plate and a protective sleeve disposed on the upper part of the base plate. A support frame is fixedly installed on the base plate, and an electric telescopic rod is fixedly installed at the bottom end of the support frame. A laser head for cladding the protective sleeve is fixedly installed at the bottom end of the electric telescopic rod, and the laser head is positioned directly above the protective sleeve. Two symmetrically arranged lead screws are rotatably installed on the base plate, and a first threaded sleeve is correspondingly fitted on the outer wall of each of the two lead screws. An inverted convex fixing plate is fixedly installed on the outer wall of the first threaded sleeve, and two horizontally arranged load-bearing cylinders for placing the protective sleeve are rotatably installed on the inner wall of the fixing plate.

[0008] Preferably, two horizontally arranged rotating rods are rotatably installed on the left side wall of the base plate, and a rotary motor fixedly installed on the side wall of the base plate is arranged between the two rotating rods. Rotating rings arranged in a staggered manner are fixedly installed on the outer walls of the two rotating rods and the output end of the rotary motor, and belts are sleeved on the outer walls of the rotating rings.

[0009] Preferably, the ends of both rotating rods are fixedly connected to the two lead screws, and the center lines of the two rotating rods and the two lead screws are on the same straight line.

[0010] Preferably, the outer walls of the two lead screws are threaded with two parallel second threaded sleeves, and the outer walls of the second threaded sleeves are fixedly fitted with an inverted convex box. The box has a placement groove, and a drive motor is fixedly installed in the placement groove. A drive gear is fixedly installed at the output end of the drive motor.

[0011] Preferably, two parallel rotating shafts are rotatably installed in the placement groove, and a rotating gear that meshes with the drive gear is fixedly installed at the end of each of the two rotating shafts. The side wall of the rotating gear is fixedly connected to the load-bearing cylinder.

[0012] Preferably, the outer wall of the box has two through holes that communicate with the placement groove, and the two load-bearing cylinders are rotatably disposed in the through holes on the outer wall of the box.

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

[0014] This invention utilizes the rotation of two load-bearing cylinders and two lead screws to ensure smooth movement of the load-bearing cylinders during rotation. This allows the outer wall of the protective sleeve to be uniformly laser-clad by the laser head, avoiding uneven laser cladding caused by inconsistent rotation speeds of the protective sleeve when rotated manually. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a laser cladding processing device for thermocouple protection sleeves in a circulating fluidized bed boiler, as proposed in this utility model.

[0016] Figure 2 This is a front sectional view of a laser cladding processing device for thermocouple protection sleeves in a circulating fluidized bed boiler, as proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the rotating ring and rotating rod of a laser cladding processing device for thermocouple protective sleeves in a circulating fluidized bed boiler, as proposed in this utility model.

[0018] Figure 4This is a schematic diagram of the rotating gear and drive gear of a laser cladding processing device for thermocouple protection sleeves in a circulating fluidized bed boiler, as proposed in this utility model.

[0019] In the diagram: 1. Base plate; 2. Support frame; 3. Electric telescopic rod; 4. Laser head; 5. Rotary motor; 6. Rotating ring; 7. Belt; 8. Rotating rod; 9. Lead screw; 10. First threaded sleeve; 11. Second threaded sleeve; 12. Fixing plate; 13. Box body; 14. Placement slot; 15. Drive motor; 16. Drive gear; 17. Rotating shaft; 18. Rotating gear; 19. Load-bearing cylinder; 20. Protective sleeve. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-4 A laser cladding processing device for thermocouple protective sleeves in a circulating fluidized bed boiler includes an inverted П-shaped base plate 1 and a protective sleeve 20 disposed on the upper part of the base plate 1. A support frame 2 is fixedly installed on the base plate 1, and an electric telescopic rod 3 is fixedly installed at the bottom end of the support frame 2. A laser head 4 for cladding processing the protective sleeve 20 is fixedly installed at the bottom end of the electric telescopic rod 3, and the laser head 4 is disposed directly above the protective sleeve 20. Two symmetrically arranged lead screws 9 are rotatably installed on the base plate 1. A first threaded sleeve 10 is correspondingly sleeved on the outer wall of each of the two lead screws 9. An inverted convex fixing plate 12 is fixedly installed on the outer wall of the first threaded sleeve 10. Two horizontally arranged load-bearing cylinders 19 for placing the protective sleeve 20 are rotatably installed on the inner wall of the fixing plate 12.

[0022] Two horizontally arranged rotating rods 8 are rotatably installed on the left side wall of the base plate 1. A rotary motor 5 is fixedly installed on the side wall of the base plate 1 between the two rotating rods 8. Rotating rings 6 are fixedly installed on the outer walls of the two rotating rods 8 and the output end of the rotary motor 5, and belts 7 are sleeved on the outer walls of the rotating rings 6.

[0023] The ends of the two rotating rods 8 are fixedly connected to the two lead screws 9, and the center lines of the two rotating rods 8 and the two lead screws 9 are on the same straight line.

[0024] Two parallel second threaded sleeves 11 are threaded onto the outer walls of the two lead screws 9. A box 13 with an inverted convex shape is fixedly installed on the outer wall of the second threaded sleeve 11. A placement groove 14 is opened inside the box 13. A drive motor 15 is fixedly installed in the placement groove 14. A drive gear 16 is fixedly installed at the output end of the drive motor 15.

[0025] Two parallel rotating shafts 17 are rotatably installed in the placement slot 14. Each of the two rotating shafts 17 has a rotating gear 18 fixedly installed at its end, which meshes with the drive gear 16. The side wall of the rotating gear 18 is fixedly connected to the load-bearing cylinder 19.

[0026] The outer wall of the box 13 has two through holes that are connected to the placement slot 14, and the two load-bearing cylinders 19 are rotatably disposed in the through holes on the outer wall of the box 13.

[0027] The functional principle of this utility model can be explained through the following operation methods:

[0028] By placing the protective sleeve 20 on two load-bearing cylinders 19, and then turning on the drive motor 15, the drive motor 15 drives the drive gear 16 to rotate clockwise. The drive gear 16 then drives two rotating gears 18, which are meshed with the drive gear 16, to rotate counterclockwise. The counterclockwise rotation of the rotating gears 18 causes the two load-bearing cylinders 19 to rotate synchronously counterclockwise, thus rotating the protective sleeve 20. The distance between the protective sleeves 20 of the laser head 4 is adjusted by extending and retracting the electric telescopic rod 3, facilitating the maintenance of the protective sleeves. The protective sleeve 20 undergoes laser cladding. Then, the rotating motor 5 drives the rotating ring 6 to rotate. The belt 7 causes the rotating ring 6 on the rotating rod 8 to rotate, which in turn drives the lead screw 9 to rotate. The rotation of the lead screw 9 causes the first threaded sleeve 10 and the second threaded sleeve 11 to move synchronously. This causes the first threaded sleeve 10 and the second threaded sleeve 11 to move the fixing plate 12 and the housing 13, thus ensuring that the outer wall of the protective sleeve 20 is uniformly clad during the laser cladding process.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A laser cladding processing device for thermocouple protective sleeves in a circulating fluidized bed boiler, comprising an inverted Π-shaped base plate (1) and a protective sleeve (20) disposed on the upper part of the base plate (1), characterized in that, A support frame (2) is fixedly installed on the base plate (1). An electric telescopic rod (3) is fixedly installed at the bottom end of the support frame (2). A laser head (4) for cladding the protective sleeve (20) is fixedly installed at the bottom end of the electric telescopic rod (3). The laser head (4) is located directly above the protective sleeve (20). Two symmetrically arranged lead screws (9) are rotatably installed on the base plate (1). A first threaded sleeve (10) is fitted on the outer wall of each of the two lead screws (9). A fixed plate (12) with an inverted convex shape is fixedly installed on the outer wall of the first threaded sleeve (10). Two horizontally arranged load-bearing cylinders (19) for placing the protective sleeve (20) are rotatably installed on the inner wall of the fixed plate (12).

2. The laser cladding processing device for thermocouple protection sleeves in a circulating fluidized bed boiler according to claim 1, characterized in that, Two horizontally arranged rotating rods (8) are rotatably installed on the left side wall of the base plate (1). A rotary motor (5) is fixedly installed on the side wall of the base plate (1) between the two rotating rods (8). Rotating rings (6) arranged in opposite directions are fixedly installed on the outer walls of the two rotating rods (8) and the output end of the rotary motor (5). A belt (7) is sleeved on the outer wall of the rotating ring (6).

3. The laser cladding processing device for thermocouple protection sleeves in a circulating fluidized bed boiler according to claim 2, characterized in that, The ends of the two rotating rods (8) are fixedly connected to the two lead screws (9), and the center lines of the two rotating rods (8) and the two lead screws (9) are on the same straight line.

4. The laser cladding processing device for thermocouple protection sleeves in a circulating fluidized bed boiler according to claim 3, characterized in that, Two parallel second threaded sleeves (11) are threaded onto the outer walls of the two lead screws (9). A box (13) with an inverted convex shape is fixedly installed on the outer wall of the second threaded sleeve (11). A placement groove (14) is opened in the box (13). A drive motor (15) is fixedly installed in the placement groove (14). A drive gear (16) is fixedly installed at the output end of the drive motor (15).

5. The laser cladding processing device for thermocouple protection sleeves in a circulating fluidized bed boiler according to claim 4, characterized in that, Two parallel rotating shafts (17) are rotatably installed in the placement slot (14). At the ends of the two rotating shafts (17), a rotating gear (18) is fixedly installed and meshes with the drive gear (16). The side wall of the rotating gear (18) is fixedly connected to the load-bearing cylinder (19).

6. The laser cladding processing device for thermocouple protection sleeves in a circulating fluidized bed boiler according to claim 5, characterized in that, The outer wall of the box (13) has two through holes that are connected to the placement slot (14), and the two load-bearing cylinders (19) are rotatably disposed in the through holes on the outer wall of the box (13).

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