A high entropy alloy powder feeding device for laser cladding

Abstract

The invention discloses a high entropy alloy powder feeding device for laser cladding, which relates to the technical field of laser cladding. The invention comprises a support seat, a powder feeding mechanism is provided on the support seat, the powder feeding mechanism comprises a support member arranged on the support seat, a driving member is provided in the support member, a gear member is provided in the driving member, a powder feeding pipe is provided at the center position of the gear member, a movable member is provided in the gear member, a knocking member is provided on the outer side of the powder feeding pipe, the movable member and the knocking member cooperate to knock the outer wall of the powder feeding pipe, and also comprises a mixing mechanism, a dispersing mechanism and a powder spraying mechanism. The invention cooperates the gear member and the movable member so that multiple groups of knocking members knock the outer wall of the powder feeding pipe, thereby driving the powder feeding pipe to vibrate, which can shake out and clear the agglomerated powder, reduce the situation where the powder feeding pipe is blocked and affect the feeding and cause the poor laser cladding effect, and at the same time, the multiple groups of powder are crushed and mixed by the mixing mechanism and the dispersing mechanism, so as to achieve the purpose of uniform mixing of the powders.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cladding, and more particularly to a high entropy alloy powder feeding device for laser cladding. Background Art

[0002] Laser cladding is a new surface modification technology that adds cladding material to the substrate surface and uses a high-energy-density laser beam to melt and solidify it simultaneously with the substrate surface, forming a filler cladding layer on the substrate surface that is metallurgically bonded to the substrate. Powder-feeding laser cladding uses a powder feeder to transport alloy powder through high-pressure inert gas, forming a gas-powder flow with a certain rigidity that directly enters the cladding molten pool. The rigid gas-powder flow can be used in synchronous lateral or coaxial powder feeding nozzles to achieve three-dimensional laser cladding.

[0003] Currently, the common laser cladding powder feeder conveys powder through a feeding pipe. However, the powder in the feeding pipe is prone to encounter agglomerated powder during the conveying process, causing the feeding pipe to become blocked and unable to continuously feed, thus affecting the laser cladding phenomenon. At the same time, after being blocked, it is necessary to stop working and clear the feeding pipe, which causes inconvenience in operation and affects efficiency. For this reason, we propose a high-entropy alloy powder feeding device for laser cladding. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the object of the present invention is to provide a high entropy alloy powder feeding device for laser cladding.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: comprising a support seat, a powder conveying mechanism is provided on the support seat, the powder conveying mechanism comprises a support member arranged on the support seat, a driving member is provided in the support member, a gear member is provided in the driving member, a powder conveying pipe is provided at the center of the gear member, a movable member is provided in the gear member, a knocking member is provided on the outer side of the powder conveying pipe, the movable member and the knocking member cooperate to knock the outer wall of the powder conveying pipe, and also comprises a mixing mechanism, the mixing mechanism comprises a stirring member arranged in the gear member, an adjusting member is provided in the powder conveying pipe, a movable member is provided at the bottom of the gear member, the adjusting member and the movable member cooperate to crush the powder, and also comprises a dispersion mechanism, the dispersion mechanism

[0006] It includes a sleeve arranged at the bottom end of the support seat, a fixing part is arranged in the sleeve, a ring part is arranged in the fixing part, a vibrating part is arranged at the bottom of the fixing part, a pressure roller part is arranged on the inner side of the ring part, a dispersion part is arranged in the fixing part, the dispersion part and the pressure roller part cooperate to compact the powder, and also includes a powder spraying mechanism, the powder spraying mechanism includes a connecting part arranged at the bottom end of the fixing part, a powder spraying part is arranged at one end of the connecting part, a laser is arranged in the powder spraying part, and the powder spraying part and the laser cooperate to melt the powder.

[0007] Preferably, the support member includes an annular cylinder arranged on the upper end surface of the support seat, the middle of the annular cylinder is a hollow hole, the annular cylinder is provided with three groups of support plates at the top edge of the hollow hole, the middle positions of the three groups of support plates are integrally formed with a joint, the middle of the support seat is hollow, the middle of the support seat is provided with a mounting plate, and the upper end surfaces of the mounting plate are provided with reinforcing plates on both sides, and the reinforcing plates on both sides are provided

[0008] On the inner wall of the annular cylinder, the driving member includes a motor arranged in the middle position of the upper end surface of the coupling part, a rotating rod is arranged at one end of the motor rotor shaft end passing through the coupling part, and a gear 1 is arranged on the outer wall of the rotating rod.

[0009] Preferably, the gear member includes gear 2, gear 3 and gear 4 meshingly connected to the outside of gear 1, and gear 2, gear 3 and gear 4 are arranged around the upper end surface of the support seat, and the upper end surface of the support seat is provided with an annular strip, and the inner wall of the annular strip is provided with a gear ring, and the gear ring is meshed with gear 2, gear 3 and gear 4, and an opening is provided at the center of gear 2, gear 3 and gear 4 at the position of the mounting plate, and the powder conveying pipe passes through the opening.

[0010] Preferably, the movable part includes an annular sleeve arranged on the upper end surfaces of gear two, gear three and gear four, the mounting plate is located on the inner side of the annular sleeve and is provided with a movable sleeve and a mounting sleeve, the side wall of the mounting sleeve is connected to the support plate, the movable sleeve surrounds the powder conveying pipe, the side of the movable sleeve away from the powder conveying pipe is the extrusion surface, and the side of the movable sleeve attached to the powder conveying pipe is the knocking surface.

[0011] Preferably, the striking member includes a slot provided on the outer wall of the mounting sleeve, a rotating shaft is rotatably connected in the slot, an auxiliary portion is provided on the outer wall of the rotating shaft, a striking portion is integrally formed on the upper end surface of the auxiliary portion, the top position of the striking portion abuts against the outer wall of the powder conveying pipe, a protrusion is formed in the middle position of the striking portion, the protrusion abuts against the outer wall of the movable sleeve, and a raised portion is integrally formed on the lower end surface of the auxiliary portion.

[0012] A compression spring is provided inside the tilting portion, one end of which is provided on the inner wall of the slot. Multiple groups of diameter-reducing portions are integrally formed on the outer wall of the annular sleeve, and the multiple groups of diameter-reducing portions correspondingly rest against the inner wall of the tilting portion.

[0013] Preferably, a conical cylinder is provided at the bottom end of the upper end surface of the mounting plate, and a mixing chamber is provided in the conical cylinder. One end of the three groups of powder conveying pipes are correspondingly provided in the mixing chamber. The stirring member includes a stirring rod provided at the bottom end of gear one, and the stirring rod is provided in the mixing chamber. A stirring blade is provided on the outer wall of the stirring rod. The adjusting member includes a supporting block provided on the inner wall of the powder conveying pipe, and an obstruction piece is provided on the outer side of the supporting block. The auxiliary member includes a spherical block provided on the supporting block, and a connecting rod is provided at the bottom end of the spherical block. The connecting rod is correspondingly provided on the lower end surfaces of gear two, gear three and gear four.

[0014] Preferably, the fixing part includes connecting parts arranged on both sides of the inner wall of the sleeve, a fixing platform is provided at the center position of the connecting parts on both sides, a fixing hole is provided in the fixing platform, a vibration plate is provided in the fixing hole, the annular part includes an annular ring arranged in the fixing hole, linkage rods are provided on both sides of the upper end surface of the annular ring, one end of the linkage rods on both sides is provided at the bottom end of the annular bar, the vibrating part includes an ultrasonic vibration plate provided at the bottom end of the vibration plate, and the ultrasonic vibration plate is connected to an external power supply through an adapter joint.

[0015] Preferably, the pressure roller assembly comprises a cover plate mounted on the inner wall of the annular ring. A dispersion chamber is defined between the cover plate and the vibrating plate. A pressure plate is mounted on the inner wall of the cover plate, and a through-slot is defined within the pressure plate. A movable roller is positioned within the through-slot, with one end of the movable roller positioned on the dispersion element. An air pump is mounted on the upper surface of the cover plate, with the air pump outlet positioned within the dispersion chamber. One end of the conical cylinder is correspondingly positioned within the cover plate.

[0016] Preferably, the dispersion member includes a movable rod arranged on the upper end surface of the vibration plate, a surrounding groove is provided on the outer wall of the movable rod, and the surrounding groove is divided into a high part and a low part; a limiting rod is provided at one end of the movable roller, and the limiting rod is slidably connected in the surrounding groove; a conical platform is provided on the upper end surface of the movable rod, a plurality of groups of inclined grooves are provided on the outer wall of the conical platform, and a plurality of groups of spikes are provided in the inclined grooves; auxiliary rods are provided on both sides of the bottom end of the conical platform, and the auxiliary rods on both sides are correspondingly arranged on the inner wall of the cover plate.

[0017] Preferably, the connecting member includes a plurality of powder outlets arranged on the vibration plate, and a hose is provided at the bottom end of the plurality of powder outlets. The powder spraying member includes a nozzle shell, and the hose is correspondingly provided on the nozzle shell. An inner shell is provided in the nozzle shell, and the inner shell divides the interior of the nozzle shell into a laser area and a powder spraying area.

[0018] The laser is arranged in the laser area, and multiple groups of powder spraying tubes are arranged in the powder spraying area. The powder spraying tubes are connected to the hoses accordingly. Multiple groups of powder spraying ports are arranged around the bottom of the nozzle shell, and the powder spraying ports correspond to the powder spraying tubes.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In the present invention, a striking piece is provided on the outside of the powder conveying pipe, and the gear part and the movable part cooperate to make multiple groups of striking pieces strike the outer wall of the powder conveying pipe, thereby driving the powder conveying pipe to vibrate, which can shake off the agglomerated powder and clear it, thereby reducing the situation where the blockage of the powder conveying pipe affects the feeding and causes poor laser cladding effect.

[0021] 2. In the present invention, an adjusting member and an auxiliary member are provided. The gear member rotates while driving the auxiliary member. The auxiliary member and the adjusting member cooperate to break up the powder clumps in the powder conveying pipe. The broken powder clumps fall into the stirring member. In this way, the stirring member breaks up and mixes multiple groups of powders, thereby achieving the purpose of uniform mixing of the powders.

[0022] 3. In the present invention, the powder on the vibration plate is compacted by the movable roller in the pressing plate to ensure the uniformity of the powder. Due to the deflection force of the surrounding groove, the pressing plate is driven to move in the vertical direction on the high and low parts, thereby facilitating the compaction of the powder on the vibration plate. When the powder is discharged from the powder conveying pipe, it first hits the spikes on the conical table, thereby further breaking up the powder.

[0023] 4. In the present invention, the evenly mixed powder is transported to the powder spraying part through the connecting part, and then the powder spraying part sprays the metal powder on the surface of the workpiece. At the same time, through the use of the laser, local melting and rapid cooling are achieved, completing the laser cladding process and achieving the effect of excellent material structure and high precision.

[0024] 5. In the present invention, the ultrasonic vibration generated by the ultrasonic vibrating plate can disperse the powder particles into a mist. After the impact dispersion and ultrasonic vibration, the powder is evenly dispersed inside the fixed table. At this time, the high-speed airflow generated by the operation of the air pump is used to spray the powder from the connecting parts and the powder spraying parts to the surface of the workpiece, so that the powder is sprayed more evenly, effectively reducing the waste caused by the powder supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG1 is a schematic diagram of a high entropy alloy powder feeding device for laser cladding proposed by the present invention;

[0026] FIG2 is a schematic cross-sectional view of a high entropy alloy powder feeding device for laser cladding according to the present invention;

[0027] FIG3 is a schematic diagram of the internal structure of a high entropy alloy powder feeding device for laser cladding proposed by the present invention;

[0028] FIG4 is a schematic diagram of a gear component of a high entropy alloy powder feeding device for laser cladding proposed by the present invention;

[0029] FIG5 is a schematic diagram of the structure of a striking member of a high entropy alloy powder feeding device for laser cladding proposed by the present invention;

[0030] FIG6 is a schematic diagram of the structure of an adjusting member of a high entropy alloy powder feeding device for laser cladding proposed by the present invention;

[0031] FIG7 is a schematic diagram of the structure of movable parts of a high entropy alloy powder feeding device for laser cladding proposed by the present invention;

[0032] FIG8 is a bottom view schematic diagram of a high entropy alloy powder feeding device for laser cladding proposed by the present invention;

[0033] FIG9 is a schematic diagram of a dispersion mechanism of a high entropy alloy powder feeding device for laser cladding proposed by the present invention;

[0034] FIG10 is a schematic diagram of the structure of a dispersion component of a high entropy alloy powder feeding device for laser cladding proposed by the present invention;

[0035] FIG11 is a schematic diagram of the structure of a pressure roller component of a high entropy alloy powder feeding device for laser cladding proposed by the present invention.

[0036] In the figure: 100, support base; 101, powder conveying mechanism; 102, support member; 103, driving member; 104, gear member; 105, powder conveying pipe; 106, movable member; 107, knocking member; 200, mixing mechanism; 201, stirring member; 202, adjusting member; 203, auxiliary member; 300, dispersing mechanism; 301, sleeve; 302, fixing member;

[0037] 303, annular member; 304, vibrating member; 305, pressure roller member; 306, dispersion member; 400, powder spraying mechanism; 401, connecting member; 402, powder spraying member; 403, laser; 102a, annular cylinder; 102b, hollow hole; 102c,

[0038] Support plate; 102d, joint; 102e, mounting plate; 102f, reinforcement plate; 103a, motor; 103b, rotating rod; 103c, gear 1; 104a, gear 2; 104b, gear 3; 104c, gear 4; 104d, ring bar; 104e, ring gear; 104f, opening; 106a, ring sleeve; 106b, movable sleeve; 106c, mounting sleeve; 106d, extrusion surface; 106e, striking surface; 107a, slot; 107b, rotating shaft; 107c, auxiliary portion; 107d, striking portion; 107e, protrusion; 107f, tilting portion; 107g, compression spring; 107h, Variable diameter portion; 201a, conical cylinder; 201b, mixing chamber; 201c, stirring rod; 201d, stirring blade; 202a, support block; 202b, blocking plate; 203a, spherical block; 203b, connecting rod; 302a, connecting portion; 302b, fixing table; 302c, fixing hole; 302d, vibration plate; 303a, annular ring; 303b, linkage rod; 304a, ultrasonic vibration plate; 305a, cover plate; 305b, dispersion chamber; 305c, pressure plate; 305d, through groove; 305e, movable roller; 305f, air pump; 306a, movable rod; 306b, surrounding groove; 306c, high-position portion; 306d, Lower part; 306e, limit rod; 306f, conical platform; 306g, inclined groove; 306h, spike; 306i, auxiliary rod; 401a, powder outlet; 401b, hose; 402a, nozzle shell; 402b, inner shell; 402c, laser area; 402d, powder spraying area; 402e, powder spraying pipe; 402f, powder spraying port. DETAILED DESCRIPTION

[0039] Example 1 A high entropy alloy powder feeding device for laser cladding proposed in the present invention is further described, comprising a support base 100, a powder feeding mechanism 101 being provided on the support base 100, the powder feeding mechanism 101 comprising a support member 102 provided on the support base 100, a driving member 103 being provided in the support member 102, a gear member 104 being provided in the driving member 103, a powder feeding pipe 105 being provided at the center of the gear member 104, a movable member 106 being provided in the gear member 104, a striking member 107 being provided on the outer side of the powder feeding pipe 105, the movable member 106 and the striking member 107 cooperating to strike the outer wall of the powder feeding pipe 105;

[0040] Referring to Figures 1 to 11 , the present invention further improves upon the prior art by providing a striking member 107 on the outside of the powder conveying pipe 105 . The gear member 104 and the movable member 106 cooperate to allow multiple groups of striking members 107 to strike the outer wall of the powder conveying pipe 105 . This causes the powder conveying pipe 105 to vibrate, thereby shaking off and unblocking agglomerated powder. This reduces the risk of blockage in the powder conveying pipe 105 that could affect material feeding and lead to poor laser cladding results.

[0041] The mixing mechanism 200 includes a stirring member 201 disposed in the gear member 104, an adjusting member 202 disposed in the powder conveying pipe 105, an auxiliary member 203 disposed at the bottom of the gear member 104, and an adjusting member 202 disposed at the bottom of the gear member 104.

[0042] The auxiliary member 203 cooperates with the auxiliary member to crush the powder, and further includes a dispersing mechanism 300. The dispersing mechanism 300 includes a sleeve 301 disposed at the bottom end of the support base 100. A fixing member 302 is disposed within the sleeve 301. An annular member 303 is disposed within the fixing member 302. A vibrating member 304 is disposed at the bottom of the fixing member 302. A pressing roller 305 is disposed inside the annular member 303. A dispersing member 306 is disposed within the fixing member 302. The dispersing member 306 and the pressing roller 305 cooperate to compact the powder.

[0043] As shown in Figure 1 , the present invention further refines the structure of the powder conveying mechanism 101. An adjusting member 202 and an auxiliary member 203 are provided at the bottom of the inner wall of the powder conveying pipe 105. The gear member 104 rotates while driving the auxiliary member 203. The auxiliary member 203 and the adjusting member 202 cooperate to break up the powder clumps in the powder conveying pipe 105. The broken powder clumps fall into the stirring member 201. In this way, the stirring member 201 breaks up and mixes multiple groups of powder, thereby achieving the purpose of uniform mixing of the powders.

[0044] The powder spraying mechanism 400 includes a connecting member 401 provided at the bottom end of the fixing member 302. A powder spraying member 402 is provided at one end of the connecting member 401. A laser 403 is provided in the powder spraying member 402. The powder spraying member 402 and the laser 403 cooperate to melt the powder.

[0045] The evenly mixed powder is transported to the powder spraying part 402 through the connecting part 401, and then the powder spraying part 402 sprays the metal powder onto the surface of the workpiece. At the same time, the laser beam is focused on the surface of the workpiece through the use of the laser 403. When the energy density exceeds the melting point of the material, the material will be partially melted. When the laser beam leaves and stops irradiating, the liquid pool on the surface of the workpiece will instantly cool and solidify, thereby achieving local melting and rapid cooling, completing the laser cladding process and achieving the effect of excellent material structure and high precision.

[0046] Working Principle: First, powder is conveyed into the powder conveying pipe 105. Then, the external controller starts the motor 103a, which drives the gear 104. The gear 104 and the movable member 106 cooperate to cause multiple groups of striking members 107 to strike the outer wall of the powder conveying pipe 105. This causes the powder conveying pipe 105 to vibrate, which can shake off and clear agglomerated powder, thereby reducing the possibility of blockage in the powder conveying pipe 105 affecting material supply and resulting in poor laser cladding results.

[0047] Then the powder is discharged from the bottom of the feeding pipe, and the regulating part 202 and the auxiliary part 203 cooperate to break up the agglomerated powder. Then the stirring part 201 breaks up and mixes the multiple groups of powder, thereby achieving the purpose of uniform mixing of the powder. Then the uniformly mixed powder passes through the dispersion part 306 and the pressure roller part 305 to compact the powder, and then is transported to the powder spraying part 402 through the connecting part 401. The powder spraying part 402 sprays the metal powder.

[0048] On the surface of the workpiece, the laser beam is focused on the surface of the workpiece by using the laser 403, thereby completing the laser cladding process.

[0049] The second embodiment adds the following technical features based on the first embodiment:

[0050] The support member 102 includes an annular cylinder 102a fixedly connected to the upper end surface of the support base 100. The annular cylinder 102a has a hollow hole 102b in the middle. Three groups of support plates 102c are fixedly connected to the annular cylinder 102a at the top edge of the hollow hole 102b. A joint 102d is integrally formed in the middle of the three groups of support plates 102c. The support base 100 is hollow in the middle. A mounting plate 102e is provided in the middle of the support base 100. Reinforcing plates 102f are fixedly connected to both sides of the upper end surface of the mounting plate 102e. The reinforcing plates 102f on both sides are fixedly connected to the inner wall of the annular cylinder 102a. The driving member 103 includes a motor 103a installed in the middle position of the upper end surface of the joint 102d. The rotor shaft end of the motor 103a passes through the joint 102d and is fixedly connected to a rotating rod 103b at one end. A gear 103c is keyed to the outer wall of the rotating rod 103b.

[0051] As can be seen from Figures 1 to 11, a hollow annular cylinder 102a is fixed to the support base 100, and the support base 100 and a joint 102d are integrally formed in the middle of the annular cylinder 102a. A motor 103a is installed on the upper end surface of the joint 102d to ensure a compact structure. The output shaft end of the motor 103a is fixedly connected to a rotating rod 103b, which serves as a drive shaft to drive gear 103c to rotate. Three groups of L-shaped reinforcement plates 102f are fixed to the inner wall of the annular cylinder 102a, and the bottom ends of the reinforcement plates 102f are fixedly connected to the mounting plate 102e. In this way, there is no direct connection between the mounting plate 102e and the support base 100.

[0052] The gear member 104 includes a second gear 104a, a third gear 104b and a fourth gear 104c meshed with the outer side of the first gear 103c. The second gear 104a, the third gear 104b and the fourth gear 104c are arranged around the upper end surface of the support base 100. The upper end surface of the support base 100 is rotatably connected with an annular bar 104d. The inner wall of the annular bar 104d is provided with a gear ring 104e. The gear ring 104e is meshed with the second gear 104a, the third gear 104b and the fourth gear 104c. The center of the second gear 104a, the third gear 104b and the fourth gear 104c is located at the position of the mounting plate 102e. An opening 104f is provided, and the powder conveying pipe 105 passes through the opening 104f. As can be seen from Figures 1 to 11, the gear member 104 is a planetary gear system, which rotates through the middle gear 103c. The gear 103c It is engaged with gear 2 104a, gear 3 104b and gear 4 104c, thereby driving gear 2 104a, gear 3 104b and gear 4 104c to rotate. At the same time, an annular bar 104d and a gear ring 104e are also provided on the outside, thus driving the annular bar 104d to rotate;

[0053] The movable part 106 includes an annular sleeve 106a provided on the upper end surfaces of gear 2 104a, gear 3 104b and gear 4 104c. The mounting plate 102e is located on the inner side of the annular sleeve 106a and is provided with a movable sleeve 106b and a mounting sleeve 106c. The side wall of the mounting sleeve 106c is connected to the support plate 102c. The movable sleeve 106b and the mounting sleeve 106c are fixed to the mounting plate 102e. The movable sleeve 106b surrounds the powder conveying pipe 105. The side of the movable sleeve 106b away from the powder conveying pipe 105 is the extrusion surface 106d, and the side of the movable sleeve 106b attached to the powder conveying pipe 105 is the striking surface 106e. The striking part 107 includes a slot 107a provided on the outer wall of the mounting sleeve 106c. A rotating shaft 107b is rotatably connected in the slot 107a. The rotating shaft 107b An auxiliary portion 107c is provided on the outer wall, and a striking portion 107d is integrally formed on the upper end surface of the auxiliary portion 107c. The top of the striking portion 107d abuts against the outer wall of the powder conveying pipe 105. A protrusion 107e is formed in the middle of the striking portion 107d, and the protrusion 107e abuts against the outer wall of the movable sleeve 106b. A raised portion 107f is integrally formed on the lower end surface of the auxiliary portion 107c. A compression spring 107g is provided inside the raised portion 107f. One end of the compression spring 107g is provided on the inner wall of the slot 107a. Multiple groups of reducing portions 107h are integrally formed on the outer wall of the annular sleeve 106a, and the multiple groups of reducing portions 107h correspondingly abut against the inner wall of the raised portion 107f.

[0054] As can be seen from Figures 1 to 11, the middle of the gear 2 104a, the gear 3 104b and the gear 4 104c is hollow. The gear 2 104a, the gear 3 104b and the gear 4 104c are fixedly connected with an annular sleeve 106a. The middle position of the gear is provided with a movable sleeve 106b. The movable sleeve 106b is an elastic structure. When the striking member 107 is forced to move, it strikes the movable sleeve 106b, causing the movable sleeve 106b to vibrate and resist the outer wall of the powder conveying pipe 105. In this way, the powder clumps in the powder conveying pipe 105 are dissipated, ensuring stability during powder conveying.

[0055] The present invention further refines the structure of the movable part 106. Three groups of slots 107a are provided on the outer wall of the mounting sleeve 106c. A rotating shaft 107b is rotatably connected to the slot 107a through a bearing. An auxiliary part 107c and a knocking part 107d are integrally formed on the rotating shaft 107b. The auxiliary part 107c is connected to the inner wall of the slot 107a through a compression spring 107g. The compression spring 107g is a carbon spring with high strength and is convenient for daily use. In addition, three groups of reducing parts 107h are integrally formed on the outer wall of the annular sleeve 106a. Therefore, the diameters of the reducing parts 107h are different. When the annular sleeve 106a rotates, the reducing part 107h is driven to rotate. In this way, when the diameter gradually increases, the effect of squeezing the auxiliary part 107c is achieved. When the diameter gradually decreases, under the action of the compression spring 107g, the auxiliary part 107c Retract, thus driving the rotating shaft 107b in the auxiliary part 107c to rotate in the slot 107a.

[0056] Working principle: As can be seen from Example 1, when the motor 103a drives the gear 103c to rotate,

[0057] The planetary gear structure drives gear 2 104a, gear 3 104b and gear 4 104c to rotate, which in turn drives the annular sleeve 106a on gear 2 104a, gear 3 104b and gear 4 104c to rotate. The annular sleeve 106a drives the reducing portion 107h to rotate. As the diameter gradually increases, the auxiliary portion 107c is squeezed. As the diameter gradually decreases, the auxiliary portion 107c retracts under the action of the compression spring 107g, thereby driving the rotating shaft 107b in the auxiliary portion 107c to rotate in the slot 107a. Under the above movement, the knocking portion 107d and the protrusion 107e on the auxiliary portion 107c knock the movable sleeve 106b and the powder conveying pipe 105 respectively, causing the powder conveying pipe 105 to vibrate, thereby achieving the effect of shaking off the powder.

[0058] The third embodiment adds the following technical features based on the second embodiment:

[0059] The bottom end of the upper end surface of the mounting plate 102e is fixedly connected to a conical cylinder 201a, and the conical cylinder 201a contains a mixing chamber 201b. One end of the three sets of powder conveying pipes 105 is correspondingly arranged in the mixing chamber 201b. The stirring member 201 includes a stirring rod 201c fixedly connected to the bottom end of the gear 1 103c, the stirring rod 201c is arranged in the mixing chamber 201b, and a stirring blade 201d is fixedly connected to the outer wall of the stirring rod 201c. The adjusting member 202 includes a supporting block 202a fixedly connected to the inner wall of the powder conveying pipe 105, and a blocking piece 202b is fixedly connected to the outer side of the supporting block 202a. The auxiliary member 203 includes a spherical block 203a arranged on the supporting block 202a, and a connecting rod 203b is fixedly connected to the bottom end of the spherical block 203a. The connecting rod 203b Correspondingly fixedly connected to the lower end surfaces of gear 2 104a, gear 3 104b and gear 4 104c;

[0060] As can be seen from Figures 1 to 11, a conical cylinder 201a is fixedly connected to the bottom of the mounting plate 102e, and the ejection end of the powder conveying pipe 105 is arranged in the conical cylinder 201a, and the stirring member 201 is correspondingly arranged in the conical cylinder 201a, so that the powder clumps ejected from the three groups of powder conveying pipes 105 are mixed, and the present device further refines the structure of the powder conveying pipe 105, and a support block 202a and a blocking piece 202b are provided inside the powder conveying pipe 105 to break up the powder clumps. At the same time, a connecting rod 203b is fixed to the bottom of the support block 202a through a spherical block 203a, and the connecting rod 203b is correspondingly fixed on gear two 104a, gear three 104b and gear four 104c. Therefore, when gear two 104a, gear three 104b and gear four 104c rotate, the connecting rod 203b is driven. The spherical block 203a on the upper part rotates in the supporting block 202a, so that when the connecting rod 203b rotates, the powder mass is further broken up;

[0061] The fixing member 302 includes connecting portions 302a provided on both sides of the inner wall of the sleeve 301.

[0062] A fixing platform 302b is integrally formed at the center, with a fixing hole 302c defined therein. A vibration plate 302d is removably mounted within the fixing hole 302c. The annular member 303 includes an annular ring 303a positioned within the fixing hole 302c. Linkage rods 303b are fixedly connected to both sides of the upper end of the annular ring 303a. One end of each linkage rod 303b is fixedly connected to the bottom end of the annular bar 104d. The vibration member 304 includes an ultrasonic vibration plate 304a mounted on the bottom end of the vibration plate 302d. The ultrasonic vibration plate 304a is connected to an external power supply via an adapter.

[0063] As can be seen from Figures 1 to 11, a connecting portion 302a and a fixed platform 302b are integrally formed on the inner wall of the sleeve 301. A vibration plate 302d is detachably connected to the fixed platform 302b, and an ultrasonic vibration plate 304a is fixedly connected to the bottom of the vibration plate 302d. Through the use of the ultrasonic vibration plate 304a, after the powder is inside the fixed platform 302b, the ultrasonic vibration plate 304a operates to generate high-frequency ultrasonic vibrations. The ultrasonic vibrations generated by the ultrasonic vibration plate 304a can disperse the powder particles into a mist. After the powder undergoes impact dispersion and ultrasonic vibrations, the powder is evenly dispersed inside the fixed platform 302b. At this time, the high-speed airflow generated by the operation of the air pump 305f is used to spray the powder from the connecting piece 401 and the powder spraying piece 402 to the surface of the workpiece, so that the powder is sprayed more evenly, effectively reducing the waste caused by the powder supply.

[0064] Working principle: As can be seen from Example 2, the planetary gear structure drives Gear 2 104a, Gear 3 104b and Gear 4 104c to rotate, and the outer annular bar 104d also rotates. When the annular bar 104d rotates, the annular ring 303a at the bottom end of the linkage rod 303b is driven to rotate. When Gear 2 104a, Gear 3 104b and Gear 4 104c rotate, the spherical block 203a on the connecting rod 203b is driven to rotate in the support block 202a, and a blocking piece 202b is provided in the powder conveying pipe 105. In this way, the agglomerated powder passing through the powder conveying pipe 105 is broken up. After the powder in the three groups of powder conveying pipes 105 falls into the mixing chamber 201b, the different powders are further broken up and mixed by the stirring rod 201c and stirring blades 201d on the gear 1 103c, thereby achieving a uniform mixing effect.

[0065] The fourth embodiment adds the following technical features on the basis of the third embodiment:

[0066] The pressure roller 305 includes a cover plate 305a fixedly connected to the inner wall of the annular ring 303a. A dispersion chamber 305b is formed between the cover plate 305a and the vibration plate 302d. A pressure plate 305c is slidably connected to the inner wall of the cover plate 305a in the vertical direction. A through groove 305d is provided in the pressure plate 305c. A movable roller 305e is rotatably connected in the through groove 305d. One end of the movable roller 305e is set on the dispersion member 306. An air pump 305f is fixedly connected to the upper end surface of the cover plate 305a.

[0067] The air outlet of the pump 305f is located in the dispersion chamber 305b, and one end of the conical cylinder 201a is correspondingly located in the cover plate 305a;

[0068] As shown in Figures 1 to 11, the annular ring 303a rotates within the fixed platform 302b. A cover plate 305a is fixedly connected to the interior of the annular ring 303a and is invertedly fastened within the fixed hole 302c. When the annular ring 303a rotates, the cover plate 305a rotates synchronously with the annular ring 303a, thereby driving the pressure plate 305c to rotate. The movable roller 305e on the inner wall of the pressure plate 305c compacts the powder on the vibration plate 302d to ensure the uniformity of the powder. At the same time, an air pump 305f is installed on the cover plate 305a, and the high-speed airflow generated by the operation of the air pump 305f transports the powder.

[0069] The dispersing member 306 includes a movable rod 306a fixedly connected to the upper end surface of the vibration plate 302d. The outer wall of the movable rod 306a is provided with a surrounding groove 306b, which is divided into a high portion 306c and a low portion 306d. A limit rod 306e is integrally formed at one end of the movable roller 305e and slidably connected within the surrounding groove 306b. The upper end surface of the movable rod 306a is provided with a conical platform 306f. The outer wall of the conical platform 306f is provided with multiple groups of inclined grooves 306g. The inclined grooves 306g are integrally formed with multiple groups of spikes 306h. Auxiliary rods 306i are fixedly connected to both sides of the bottom end of the conical platform 306f. The auxiliary rods 306i on both sides are correspondingly arranged on the inner wall of the cover plate 305a.

[0070] As can be seen from Figures 1 to 11, a movable rod 306a is fixedly connected to the middle position of the upper end surface of the vibration plate 302d, and a surrounding groove 306b is provided on the outer wall of the movable rod 306a. The surrounding groove 306b is divided into a high portion 306c and a low portion 306d. In this way, when the pressing plate 305c rotates with the cover plate 305a, the limiting rod 306e on the pressing plate 305c is slidably connected in the surrounding groove 306b, and the movable rod 306a is fixed. Due to the deflection force of the surrounding groove 306b, the pressing plate 305c is driven to move vertically on the high portion 306c and the low portion 306d during rotation, thereby facilitating the compaction of the powder on the vibration plate 302d.

[0071] Working principle: It can be seen from Example 3 that when the annular bar 104d rotates, it drives the annular ring 303a at the bottom end of the linkage rod 303b to rotate. At this time, the cover plate 305a rotates synchronously with the annular ring 303a, thereby driving its pressing plate 305c to rotate, so that the movable roller 305e on the inner wall of the pressing plate 305c compacts the powder on the vibration plate 302d to ensure the uniformity of the powder. Since one side of the pressing plate 305c moves vertically on the inner wall of the cover plate 305a, and the other side of the pressing plate 305c is fixedly connected to the limiting rod 306e, and the limiting rod 306e is slidably connected in the surrounding groove 306b, due to the deflection force of the surrounding groove 306b, the pressing plate 305c is driven to move in the vertical direction on the high part 306c and the low part 306d, thereby facilitating the compaction of the powder on the vibration plate 302d.

[0072] When the powder is discharged from the powder conveying pipe 105, it first hits the spikes 306h on the conical platform 306f, thereby further breaking up the powder.

[0073] The fifth embodiment adds the following technical features based on the fourth embodiment:

[0074] The connecting member 401 includes multiple sets of powder outlets 401a provided on the vibration plate 302d, with hoses 401b connected to the bottom ends of the multiple sets of powder outlets 401a. The powder spraying member 402 includes a nozzle housing 402a, and hoses 401b are correspondingly provided on the nozzle housing 402a. The nozzle housing 402a is provided with an inner housing 402b, which divides the interior of the nozzle housing 402a into a laser area 402c and a powder spraying area 402d. The laser 403 is provided in the laser area 402c. Multiple sets of powder spraying tubes 402e are seamlessly welded in the powder spraying area 402d, and the powder spraying tubes 402e are correspondingly connected to the hoses 401b. The bottom of the nozzle housing 402a is surrounded by multiple sets of powder spraying ports 402f, and the powder spraying ports 402f correspond to the powder spraying tubes 402e.

[0075] The evenly mixed powder is transported to the powder spraying unit 402 through the connecting unit 401. The powder spraying unit 402 then sprays the metal powder onto the workpiece surface. At the same time, the laser 403 focuses the laser beam on the workpiece surface. When the energy density exceeds the melting point of the material, the material is partially melted.

[0076] Working principle: As can be seen from Example 4, after the powder is evenly mixed and compacted by the pressing plate 305c, it is discharged from the powder outlet 401a into the hose 401b. Then, the hose 401b transports the powder to the powder spraying area 402d. Through the use of laser 403, the laser beam irradiates the powder falling on the surface of the workpiece. When its energy density exceeds the melting point of the material, the material will be partially melted. When the laser beam leaves and stops irradiation, the liquid pool on the surface of the workpiece will instantly cool and solidify, thereby achieving local melting and rapid cooling, completing the laser cladding process.

[0077] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A high entropy alloy powder feeding device for laser cladding, characterized in that: The invention comprises a support base (100), wherein a powder conveying mechanism (101) is provided on the support base (100), wherein the powder conveying mechanism (101) comprises a support member (102) provided on the support base (100), wherein a driving member (103) is provided in the support member (102), wherein a gear member (104) is provided in the driving member (103), wherein a powder conveying pipe (105) is provided at the center of the gear member (104), wherein a movable member (106) is provided in the gear member (104), wherein a knocking member (107) is provided on the outer side of the powder conveying pipe (105), and wherein the movable member (106) and the knocking member (107) cooperate to knock the outer wall of the powder conveying pipe (105); The mixing mechanism (200) further comprises a stirring member (201) disposed in the gear member (104), an adjusting member (202) is disposed in the powder conveying pipe (105), an auxiliary member (203) is disposed at the bottom of the gear member (104), and the adjusting member (202) and the auxiliary member (203) cooperate to crush the powder; The device further comprises a dispersion mechanism (300), wherein the dispersion mechanism (300) comprises a sleeve (301) arranged at the bottom end of the support seat (100), a fixing member (302) being arranged in the sleeve (301), a ring member (303) being arranged in the fixing member (302), a vibrating member (304) being arranged at the bottom of the fixing member (302), a pressing roller (305) being arranged inside the ring member (303), a dispersion member (306) being arranged in the fixing member (302), and the dispersion member (306) and the pressing roller (305) being arranged to compact the powder in cooperation with each other; The device further comprises a powder spraying mechanism (400), wherein the powder spraying mechanism (400) comprises a connecting member (401) arranged at the bottom end of the fixing member (302), a powder spraying member (402) being arranged at one end of the connecting member (401), a laser (403) being arranged in the powder spraying member (402), and the powder spraying member (402) and the laser (403) cooperating to perform cladding on the powder material; The support member (102) comprises an annular cylinder (102a) arranged on the upper end surface of the support seat (100), the center of the annular cylinder (102a) is a hollow hole (102b), the annular cylinder (102a) is provided with three groups of support plates (102c) at the top edge of the hollow hole (102b), the middle positions of the three groups of support plates (102c) are integrally formed with a joint portion (102d), the center of the support seat (100) is hollow, the driving member (103) comprises a motor (103a) arranged at the middle position of the upper end surface of the joint portion (102d), the rotor shaft end of the motor (103a) passes through the joint portion (102d) and is provided with a rotating rod (103b), the rotating rod (103b) A gear 1 (103c) is provided on the outer wall, the gear member (104) includes a gear 2 (104a), a gear 3 (104b) and a gear 4 (104c) meshed and connected to the outside of the gear 1 (103c), and the movable member (106) It includes an annular sleeve (106a) arranged on the upper end surfaces of gear 2 (104a), gear 3 (104b) and gear 4 (104c); The regulating member (202) includes a supporting block (202a) arranged on the inner wall of the powder conveying pipe (105), and a blocking piece (202b) is arranged on the outer side of the supporting block (202a). The auxiliary member (203) includes a spherical block (203a) arranged on the supporting block (202a), and a connecting rod (203b) is arranged at the bottom end of the spherical block (203a). The connecting rod (203b) is correspondingly arranged on the lower end surfaces of gear two (104a), gear three (104b) and gear four (104c).

2. The high entropy alloy powder feeding device for laser cladding according to claim 1, characterized in that: A mounting plate (102e) is provided in the middle of the support seat (100), and reinforcement plates (102f) are provided on both sides of the upper end surface of the mounting plate (102e). The reinforcement plates (102f) on both sides are provided on the inner wall of the annular cylinder (102a).

3. The high entropy alloy powder feeding device for laser cladding according to claim 2, characterized in that: The gear 2 (104a), gear 3 (104b) and gear 4 (104c) are arranged in a circumferential manner on the upper end surface of the support base (100), the upper end surface of the support base (100) is provided with an annular strip (104d), the inner wall of the annular strip (104d) is provided with a gear ring (104e), the gear ring (104e) is engaged with the gear 2 (104a), gear 3 (104b) and gear 4 (104c), the center of the gear 2 (104a), gear 3 (104b) and gear 4 (104c) is provided with an opening (104f) at the position of the mounting plate (102e), and the powder conveying pipe (105) passes through the opening (104f).

4. The high entropy alloy powder feeding device for laser cladding according to claim 3, characterized in that: The mounting plate (102e) is located on the inner side of the annular sleeve (106a) and is provided with a movable sleeve (106b) and a mounting sleeve (106c). The side wall of the mounting sleeve (106c) is connected to the support plate (102c). The movable sleeve (106b) surrounds the powder conveying pipe (105). The side of the movable sleeve (106b) away from the powder conveying pipe (105) is the extrusion surface (106d), and the side of the movable sleeve (106b) attached to the powder conveying pipe (105) is the knocking surface (106e).

5. A high entropy alloy powder feeding device for laser cladding according to claim 4, characterized in that In, The striking member (107) includes a slot (107a) provided on the outer wall of the mounting sleeve (106c), a rotating shaft (107b) is rotatably connected in the slot (107a), an auxiliary portion (107c) is provided on the outer wall of the rotating shaft (107b), a striking portion (107d) is integrally formed on the upper end surface of the auxiliary portion (107c), the top position of the striking portion (107d) abuts against the outer wall of the powder conveying pipe (105), a protrusion (107e) is formed in the middle position of the striking portion (107d), and the protrusion (107e) abuts against the outer wall of the movable sleeve (106b), A tilting portion (107f) is integrally formed on the lower end surface of the auxiliary portion (107c), a compression spring (107g) is provided on the inner side of the tilting portion (107f), one end of the compression spring (107g) is provided on the inner wall of the slot (107a), and multiple groups of diameter-reducing portions (107h) are integrally formed on the outer wall of the annular sleeve (106a), and the multiple groups of diameter-reducing portions (107h) are correspondingly abutted against the inner wall of the tilting portion (107f).

6. The high entropy alloy powder feeding device for laser cladding according to claim 5, characterized in that: A conical cylinder (201a) is provided at the bottom end of the upper end surface of the mounting plate (102e), and a mixing chamber (201b) is provided in the conical cylinder (201a). One end of the three groups of powder conveying pipes (105) is correspondingly provided in the mixing chamber (201b). The stirring member (201) includes a stirring rod (201c) provided at the bottom end of gear 1 (103c), and the stirring rod (201c) is provided in the mixing chamber (201b). A stirring blade (201d) is provided on the outer wall of the stirring rod (201c).

7. The high entropy alloy powder feeding device for laser cladding according to claim 6, characterized in that: The fixing member (302) includes connecting parts (302a) arranged on both sides of the inner wall of the sleeve (301), and a fixing platform (302b) is arranged at the center position of the connecting parts (302a) on both sides, and a fixing hole (302c) is provided in the fixing platform (302b), and a vibration plate (302d) is provided in the fixing hole (302c). The annular member (303) includes an annular ring (303a) arranged in the fixing hole (302c), and linkage rods (303b) are provided on both sides of the upper end surface of the annular ring (303a), and one end of the linkage rods (303b) on both sides is arranged at the bottom end of the annular bar (104d). The vibrating member (304) includes an ultrasonic vibration plate (304a) arranged at the bottom end of the vibration plate (302d), and the ultrasonic vibration plate (304a) is connected to an external power supply through an adapter joint.

8. The high entropy alloy powder feeding device for laser cladding according to claim 7, characterized in that: The pressure roller member (305) comprises a cover plate (305a) arranged on the inner wall of the annular ring (303a); a dispersion cavity (305b) is provided between the cover plate (305a) and the vibration plate (302d); a pressure plate (305c) is provided on the inner wall of the cover plate (305a); a through groove (305d) is provided in the pressure plate (305c); and the through groove (305d) A movable roller (305e) is provided inside, one end of the movable roller (305e) is provided on the dispersion member (306), an air pump (305f) is provided on the upper end surface of the cover plate (305a), the air outlet end of the air pump (305f) is provided in the dispersion chamber (305b), and one end of the conical cylinder (201a) is correspondingly provided in the cover plate (305a).

9. The high entropy alloy powder feeding device for laser cladding according to claim 8, characterized in that: The dispersing member (306) includes a movable rod (306a) arranged on the upper end surface of the vibration plate (302d), a surrounding groove (306b) is provided on the outer wall of the movable rod (306a), and the surrounding groove (306b) is divided into a high-position part (306c) and a low-position part (306d), a limiting rod (306e) is provided at one end of the movable roller (305e), and the limiting rod (306e) is slidably connected in the surrounding groove (306b), a conical platform (306f) is provided on the upper end surface of the movable rod (306a), a plurality of groups of inclined grooves (306g) are provided on the outer wall of the conical platform (306f), and a plurality of groups of spikes (306h) are provided in the inclined grooves (306g), and auxiliary rods (306i) are provided on both sides of the bottom end of the conical platform (306f), and the auxiliary rods (306i) on both sides are correspondingly provided on the inner wall of the cover plate (305a).

10. The high entropy alloy powder feeding device for laser cladding according to claim 9, characterized in that: The connecting member (401) includes a plurality of powder outlets (401a) provided on the vibration plate (302d), a hose (401b) is provided at the bottom end of the plurality of powder outlets (401a), the powder spraying member (402) includes a nozzle shell (402a), the hose (401b) is correspondingly provided on the nozzle shell (402a), an inner shell (402b) is provided in the nozzle shell (402a), the inner shell (402b) divides the interior of the nozzle shell (402a) into a laser area (402c) and a powder spraying area (402d), the laser (403) is provided in the laser area (402c), a plurality of powder spraying tubes (402e) are provided in the powder spraying area (402d), the powder spraying tubes (402e) are correspondingly connected to the hose (401b), and a plurality of powder spraying ports (402f) are provided around the bottom of the nozzle shell (402a). The powder spraying port (402f) corresponds to the powder spraying tube (402e).

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