CN218932309U

CN218932309U - Laser cladding repairing device for axial flow fan blade

Info

Publication number: CN218932309U
Application number: CN202223360506.2U
Authority: CN
Inventors: 许国军; 吴安浩; 何嘉豪
Original assignee: Jiangsu Zhongrui Shengda Power Machinery Co ltd
Current assignee: Jiangsu Zhongrui Shengda Power Machinery Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-04-28
Anticipated expiration: 2032-12-13

Abstract

The utility model discloses a laser cladding repairing device for axial flow fan blades, which comprises a base, wherein a clamping and fixing device is arranged on the base, a cross beam is horizontally arranged on one side of the base, a laser head is arranged below the cross beam, a main pipe is arranged on one side of the laser head, a plurality of metal hoses are communicated below the main pipe, and dust covers are arranged below the metal hoses; the inside cavity of crossbeam, the below of crossbeam is equipped with the ash mouth, be provided with the sealing plug in the ash mouth, be provided with the dust catcher on the crossbeam, and the import and the house steward intercommunication of dust catcher, export and the inside intercommunication of crossbeam. The dust hood, the metal hoses and the dust collectors are arranged on the middle cross beam, so that the smoke generated during laser is collected in real time in the laser cladding process of the laser head, the on-line collection is realized, scattered accumulation of smoke dust and powder is reduced, and the repair quality of the blades of the axial flow fan is improved.

Description

Laser cladding repairing device for axial flow fan blade

Technical Field

The utility model relates to the field of laser melting devices, in particular to a laser cladding repairing device for axial flow fan blades.

Background

The laser cladding refers to a process method that selected coating materials are placed on the surface of a cladding substrate in different material adding modes, and are melted together with a thin layer on the surface of the substrate through laser irradiation, and after rapid solidification, a surface coating with extremely low dilution and metallurgical bonding with the substrate is formed, and the wear resistance, corrosion resistance, heat resistance, oxidation resistance and electrical characteristics of the surface of a base layer are obviously improved, so that the purpose of surface modification or repair is achieved, the requirement on the specific performance of the surface of the material is met, and a large number of noble elements are saved. After the blades of the axial flow fan are damaged, the blades are generally repaired by laser cladding.

The Chinese patent with the publication number of CN206811330U discloses a dust-removing type laser cladding device, which comprises a laser head and a workpiece clamping device for clamping a workpiece, wherein the workpiece clamping device comprises a base and two longitudinal plates arranged on the base at intervals, clamping shafts for clamping the workpiece are respectively arranged on the longitudinal plates, the workpiece is clamped between the two clamping shafts, and the laser head is positioned above the workpiece; a dust removing bin is arranged on the base between the two longitudinal plates, the dust removing bin is positioned below the workpiece, the upper end of the dust removing bin is opened, a filter screen is arranged in the middle of the dust removing bin, and the filter screen is to be used for filtering the workpiece

The space in the dust removing bin is divided into an upper part and a lower part, an air suction port is arranged on the side wall of the dust removing bin positioned at the lower part of the filter screen, and the air suction port is correspondingly communicated with the negative pressure fan through a pipeline.

The dust removal bin is arranged below the workpiece, and due to the blocking effect of the workpiece, the opening can only suck dust and fragments falling from the workpiece in the process, and the smoke generated in the laser cladding process and the fragments and dust falling on the workpiece cannot be treated, so that the dust removal range is small and the efficiency is low.

Disclosure of Invention

The utility model aims to provide a laser cladding repairing device for an axial flow fan blade.

The novel dust collector has the innovation points that the dust hood, the metal hoses and the dust collectors are arranged on the cross beam, so that the smoke generated in laser head laser cladding process can be collected in real time, on-line collection is realized, scattered accumulation of smoke dust and powder is reduced, and the repair quality of the axial flow fan blade is improved.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the laser cladding repairing device for the axial flow fan blade comprises a base, wherein a clamping and fixing device is arranged on the base, a cross beam is horizontally arranged on one side of the base, a laser head is arranged below the cross beam, a main pipe is arranged on one side of the laser head, a plurality of metal hoses are communicated with the lower part of the main pipe, and dust suction hoods are arranged below the metal hoses; the inside cavity of crossbeam, the below of crossbeam is equipped with the ash mouth, be provided with the sealing plug in the ash mouth, be provided with the venthole on the crossbeam, venthole department is provided with the filter screen, be provided with the dust catcher outside the crossbeam, and the import and the house steward intercommunication of dust catcher, the inside intercommunication of export and crossbeam. Set up suction hood, a plurality of metal collapsible tube and a plurality of dust catcher on the crossbeam, the flue gas that produces when laser head laser cladding in-process real-time collection laser realizes collecting on line, reduces dust, powder scatter and pile up, improves axial fan blade restoration quality. The metal hose is arranged, so that the position of the dust hood can be adjusted at multiple angles, and smoke dust and powder can be absorbed better and more comprehensively; the beam is hollow, so that collected smoke dust and powder can be intensively treated, and the collected smoke dust and powder can be conveniently and intensively discharged from a dust discharge port; set up venthole and filter screen, can discharge the gas in the crossbeam, protect the crossbeam.

Preferably, a slope is arranged at the inner bottom of the cross beam, and the ash discharge port is positioned at the lowest end of the slope. And a slope is arranged, so that dust is conveniently guided to the dust discharge opening.

Preferably, the main pipe is externally provided with a connecting plate and protection plates symmetrically arranged on two sides of the connecting plate, the two protection plates are respectively positioned on the front side and the rear side of the laser head, and the two protection plates are transparent plates. The protective plate is arranged to isolate substances such as smoke, chips and dust produced during laser cladding repair, so that the substances are not easy to influence staff, and can be concentrated, so that the dust hood is convenient to suck the substances; the transparent plate is convenient for observe the behavior of laser head at any time.

Preferably, a dovetail block is arranged on one side, facing the main pipe, of the connecting plate, a dovetail groove is vertically arranged on one side, facing the dovetail block, of the main pipe, the dovetail block is slidably arranged in the dovetail groove, a plurality of limiting holes are uniformly distributed in the groove bottom of the dovetail groove along the length direction of the groove bottom, positioning holes corresponding to the limiting holes are formed in the dovetail block, and pin shafts penetrating into the limiting holes are arranged in the positioning holes. The dovetail grooves and the dovetail blocks are arranged, so that the protective plate can move up and down to be guided, and the protective plate can be adjusted to a proper height, so that the laser head can conveniently carry out cladding repair on workpieces with different shapes; set up locating hole, spacing hole and round pin axle, can fix the protection shield.

Preferably, the top ends of the two protection plates are provided with a plurality of first strong magnets, and a second strong magnet which is attracted with the first strong magnet in a ferromagnetic way is arranged below the cross beam. The first strong magnet and the second strong magnet are arranged, so that the protection plate can be fixed when moving to the uppermost side, and the laser head can be replaced, cleaned and the like conveniently; the first strong magnet and the second strong magnet are simple in structure and convenient to operate.

Preferably, the base is provided with a dust collecting disc in a drawing manner. The dust collection disc is arranged, so that dust and fragments falling in the laser cladding process can be collected, and time is saved for subsequent cleaning.

The beneficial effects of the utility model are as follows:

1. the dust hood, the metal hoses and the dust collectors are arranged on the cross beam, so that the smoke generated during laser is collected in real time in the laser cladding process of the laser head, the online collection is realized, dust and powder scattering and accumulation are reduced, and the repair quality of blades of the axial flow fan is improved; the metal hose is arranged, so that the position of the dust hood can be adjusted at multiple angles, and smoke dust and powder can be absorbed better and more comprehensively.

2. The protective plate is arranged to isolate substances such as smoke, chips and dust produced during laser cladding repair, so that the substances are not easy to influence staff, and can be concentrated, so that the dust hood is convenient to suck the substances; the transparent plate is convenient for observe the behavior of laser head at any time.

3. The dovetail groove, the dovetail block, the positioning hole, the limiting hole and the pin shaft are arranged, so that the protection plate can move up and down to be adjusted to a proper height, and the workpieces with different laser head degrees and shapes can be subjected to cladding repair.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic structural view of a dovetail groove, a dovetail block, a limiting hole, a positioning hole and a pin shaft.

In the figure:

1. a base; 11. a dust collecting tray; 2. clamping and fixing device; 3. a cross beam; 31. an ash discharge port; 32. a sealing plug; 33. a ramp; 34. an air outlet hole; 35. a filter screen; 36. a second strong magnet; 4. a laser head; 5. a header pipe; 51. a metal hose; 52. a dust hood; 53. a dovetail groove; 6. a connecting plate; 61. dovetail blocks; 62. positioning holes; 7. a protective plate; 71. a first strong magnet; 8. a limiting hole; 9. a pin shaft; 10. a dust collector.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

The described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1, the laser cladding repairing device for the axial flow fan blade comprises a base 1, wherein a clamping and fixing device 2 is arranged on the base 1, and a dust collecting disc 11 is arranged on the base 1 in a drawing manner; one side horizontal migration of base 1 is provided with crossbeam 3, and the below of crossbeam 3 is provided with laser head 4.

As shown in fig. 1, a main pipe 5 is arranged below a beam 3, the main pipe 5 is positioned at one side of a laser head 4, the inside of the beam 3 is hollow, an air outlet hole 34 is formed in the beam 3, a filter screen 35 is arranged at the air outlet hole 34, an ash discharge port 31 is arranged below the beam 3, a sealing plug 32 is arranged in the ash discharge port 31, a slope 33 is arranged at the bottom of the inside of the beam 3, and the ash discharge port 31 is positioned at the lowest end of the slope 33; a dust collector 10 is arranged outside the cross beam 3, the inlet of the dust collector 10 is communicated with the main pipe 5, and the outlet is communicated with the inside of the cross beam 3; the lower end of the main pipe 5 is communicated with a plurality of metal hoses 51, and the lower end of each metal hose 51 is provided with a dust hood 52.

As shown in fig. 2, the outer of the main pipe 5 is provided with a connecting plate 6 and protection plates 7 symmetrically arranged on two sides of the connecting plate 6, and the two protection plates 7 are respectively positioned on the front side and the rear side of the laser head 4 and are transparent plates. A dovetail block 61 is arranged on one side of the connecting plate 6 facing the main pipe 5, a dovetail groove 53 is vertically formed on one side of the main pipe 5 facing the dovetail block 61, and the dovetail block 61 is slidingly arranged in the dovetail groove 53; the connecting plate 6 is provided with positioning holes 62 penetrating through the dovetail blocks 61, a plurality of limiting holes 8 are uniformly distributed at intervals along the length direction of the bottom of the dovetail groove 53, the aperture of the positioning holes 62 is the same as that of the limiting holes 8, and pin shafts 9 penetrating into the limiting holes 8 are arranged in the positioning holes 62; the top ends of the two protection plates 7 are respectively provided with a plurality of first strong magnets 71, and a second strong magnet 36 magnetically attracted with the first strong magnets 71 is arranged below the cross beam 3.

In view of the above-mentioned, it is desirable,

when the laser cladding repairing device is used, firstly, the blades of the axial flow fan are clamped in the clamping and fixing device 2, then the laser head 4 is moved to a place needing repairing, then the angle of each metal hose 51 is adjusted, so that the dust hood 52 faces different places of the laser head 4, and the protection plate 7 is moved to the lower side and fixed through the pin shaft 9; when the laser head 4 works, the dust collector 10 is started, smoke, dust and fragments are sucked into the cross beam 3 through the dust hood 52, and after the laser cladding device is used for a period of time, the sealing plug 32 is opened to perform centralized treatment on the powder, the fragments and the like in the cross beam 3.

Claims

1. The laser cladding repairing device for the axial flow fan blade comprises a base, wherein a clamping and fixing device is arranged on the base, a cross beam is horizontally arranged on one side of the base in a moving way, a laser head is arranged below the cross beam, the laser cladding repairing device is characterized in that,

a main pipe is arranged at one side of the laser head, a plurality of metal hoses are communicated below the main pipe, and dust suction covers are arranged below the metal hoses;

the inside cavity of crossbeam, the below of crossbeam is equipped with the ash mouth, be provided with the sealing plug in the ash mouth, be provided with the venthole on the crossbeam, venthole department is provided with the filter screen, be provided with the dust catcher outside the crossbeam, and the import and the house steward intercommunication of dust catcher, the inside intercommunication of export and crossbeam.

2. The laser cladding repair apparatus for axial flow fan blade according to claim 1, wherein,

the inside bottom of crossbeam is provided with the slope, the ash discharge mouth is located the lowest of slope.

3. The laser cladding repair apparatus for axial flow fan blade according to claim 2, wherein,

the main pipe is externally provided with a connecting plate and protection plates symmetrically arranged on two sides of the connecting plate, the two protection plates are respectively positioned on the front side and the rear side of the laser head, and the two protection plates are transparent plates.

4. The laser cladding repair apparatus for axial flow fan blade according to claim 3, wherein,

the connecting plate is provided with the forked tail piece towards one side of house steward, the house steward is provided with the dovetail towards vertical one side of forked tail piece, the forked tail piece slides and sets up in the dovetail, the tank bottom of dovetail has a plurality of spacing holes along its length direction evenly distributed, be provided with the locating hole that corresponds with spacing hole on the forked tail piece, be provided with the round pin axle that penetrates in the spacing hole in the locating hole.

5. The laser cladding repair apparatus for axial flow fan blade according to claim 3, wherein,

the top ends of the two protection boards are provided with a plurality of first strong magnets, and a second strong magnet which is attracted with the first strong magnet in a ferromagnetic way is arranged below the cross beam.

6. The laser cladding repair apparatus for axial flow fan blade according to claim 1, wherein,

the base is provided with a dust collecting disc in a drawing way.