Powder feeding device for laser cladding wear-resistant alloy on inner wall of shaft sleeve

Abstract

The utility model relates to the technical field of laser cladding powder feeding, and discloses a powder feeding device for laser cladding of wear-resistant alloy on the inner wall of a shaft sleeve, which comprises a powder feeding channel, a buckle assembly is arranged at the other end of a guide pipe, a spring is arranged in the buckle assembly, a clamping hook is arranged at the other end of the spring, and the clamping hook is arranged in the guide pipe. A pushing plate is fixedly connected to the outer portion of the clamping hook, a powder feeding head is fixedly connected to the outer portion of the buckle assembly, a first clamping plate is arranged on one side of the first clamping base, first clamping grooves are formed in the two sides of the first clamping plate, a second clamping plate is arranged on the outer portion of one side of the second clamping base, and second clamping grooves are formed in the second clamping plate. According to the powder feeding device, the pushing plate is pushed to drive the clamping hook to be separated from the first clamping groove, the powder feeding head is separated from the first clamping seat to be disassembled and overhauled, the pushing plate can also be pushed to drive the clamping hook to be separated from the second clamping groove, the powder feeding head is separated from the second clamping seat to be disassembled and overhauled, and therefore the effect of improving the maintenance efficiency of equipment can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of laser cladding powder feeding technology, and in particular to a powder feeding device for laser cladding wear-resistant alloy on the inner wall of a bushing. Background Technology

[0002] As a key component in mechanical transmission, wear of the inner wall of the bushing is a common failure mode. Laser cladding technology can effectively extend the service life by cladding a wear-resistant alloy layer on the surface of the substrate. Laser cladding uses a high-energy laser beam to fuse alloy powder with a thin layer on the surface of the substrate to form a metallurgical bonding layer. Laser cladding technology plays a key role in the large-scale application of shaft parts repair and high-performance manufacturing.

[0003] Traditional powder feeding devices typically integrate the powder feeding head and the guide tube. When the powder feeding head is worn or structurally damaged and requires maintenance, it is difficult to disassemble the powder feeding head separately for maintenance, resulting in complex and time-consuming maintenance operations and reduced equipment maintenance efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a powder feeding device for laser cladding wear-resistant alloy on the inner wall of a bushing. It aims to improve the problem that traditional powder feeding devices are difficult to disassemble for maintenance, resulting in complex and time-consuming maintenance operations and reduced equipment maintenance efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A powder feeding device for laser cladding wear-resistant alloy on the inner wall of a bushing includes a powder feeding channel, a guide tube fixedly connected to the outside of the powder feeding channel, a snap-fit ​​assembly provided at the other end of the guide tube, a spring provided inside the snap-fit ​​assembly, a hook provided at the other end of the spring, a push plate fixedly connected to the outside of the hook, and a powder feeding head fixedly connected to the outside of the snap-fit ​​assembly.

[0007] Preferably, the buckle assembly includes a first buckle seat, which is externally fixedly connected to the other end of the conduit. A first buckle plate is provided on one side of the first buckle seat, and first buckle grooves are provided on both sides of the first buckle plate.

[0008] Preferably, the buckle assembly further includes a second buckle seat, which is externally fixedly connected to the other end of the conduit. A second buckle plate is provided on one side of the second buckle seat, and a second buckle groove is provided inside the second buckle plate.

[0009] Preferably, the exterior of the push plate is slidably connected to the interior of the first and second card seats, and the exterior of the powder feeding head is fixedly connected to the first and second card seats.

[0010] Preferably, the outer part of the hook is disposed inside the first slot.

[0011] Preferably, the outer part of the hook is disposed inside the second slot.

[0012] Preferably, the powder feeding channel has a spiral guide groove inside.

[0013] Preferably, an air knife is fixedly connected to the upper surface of the powder feeding channel, an air vent is provided on the outside of the air knife, an air outlet is provided on the lower surface of the powder feeding channel, and an air inlet is provided inside the spiral guide groove.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, pushing the push plate causes the hook to disengage from the first slot, separating the powder feeding head from the first slot for disassembly and maintenance. Alternatively, pushing the push plate can cause the hook to disengage from the second slot, separating the powder feeding head from the second slot for disassembly and maintenance, thereby improving the maintenance efficiency of the equipment.

[0016] 2. In this utility model, the spiral guide groove guides the wear-resistant alloy powder to flow into the interior of the guide tube along the spiral path to achieve conveying. The air inlet introduces airflow into the air knife and then discharges it through the air outlet. After being diverted by the air knife, the airflow enters the spiral guide groove through the air inlet, thereby avoiding the blockage of the powder feeding channel. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a powder feeding device for laser cladding of wear-resistant alloy on the inner wall of a bushing, as proposed in this utility model.

[0018] Figure 2 This is a partial structural diagram of the first card holder of a powder feeding device for laser cladding of wear-resistant alloy on the inner wall of a bushing, as proposed in this utility model.

[0019] Figure 3 This is a partial structural diagram of the second card holder of a powder feeding device for laser cladding of wear-resistant alloy on the inner wall of a bushing, as proposed in this utility model.

[0020] Figure 4 This is a partial structural diagram of the powder feeding head of a powder feeding device for laser cladding wear-resistant alloy on the inner wall of a bushing, as proposed in this utility model.

[0021] Figure 5 This is a partial structural diagram of the powder feeding channel of a powder feeding device for laser cladding of wear-resistant alloy on the inner wall of a bushing, as proposed in this utility model.

[0022] Figure 6 This is a partial structural diagram of the air knife of a powder feeding device for laser cladding of wear-resistant alloy on the inner wall of a bushing, as proposed in this utility model.

[0023] Legend:

[0024] 1. Powder feeding channel; 2. Guide tube; 3. Clip assembly; 301. First clip seat; 302. First clip plate; 303. First clip groove; 304. Second clip seat; 305. Second clip plate; 306. Second clip groove; 4. Spring; 5. Hook; 6. Push plate; 7. Powder feeding head; 8. Spiral guide groove; 9. Air knife; 10. Air vent; 11. Air outlet; 12. Air inlet. Detailed Implementation

[0025] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Example 1:

[0027] Reference Figure 1 and Figure 2 An embodiment of this utility model is provided: a powder feeding device for laser cladding wear-resistant alloy on the inner wall of a bushing, including a powder feeding channel 1, a guide tube 2 fixedly connected to the outside of the powder feeding channel 1, a buckling assembly 3 provided at the other end of the guide tube 2, a spring 4 provided inside the buckling assembly 3, a hook 5 provided at the other end of the spring 4, a push plate 6 fixedly connected to the outside of the hook 5, and a powder feeding head 7 fixedly connected to the outside of the buckling assembly 3;

[0028] Specifically, in this embodiment, the powder feeding channel 1 is used to allow wear-resistant alloy powder to enter the conduit 2. It is fixedly connected to the conduit 2 externally. The conduit 2 forms a pipeline to the powder feeding channel 1 to transport the wear-resistant alloy powder. The end of the conduit 2 away from the powder feeding channel 1 is connected to the powder feeding head 7 through the snap-fit ​​assembly 3. When the spring 4 inside the snap-fit ​​assembly 3 is in a compressed state, it can push the hook 5 into the inside of the slot to fix the powder feeding head 7 to the conduit 2. The push plate 6 is fixedly connected to the hook 5. Pushing the push plate 6 can drive the hook 5 to move, so that the hook 5 is disengaged from the slot and the fixation between the powder feeding head 7 and the conduit 2 is released.

[0029] Reference Figure 2 The buckle assembly 3 includes a first buckle seat 301, which is externally fixedly connected to the other end of the conduit 2. A first buckle plate 302 is provided on one side of the first buckle seat 301, and first buckle grooves 303 are provided on both sides of the first buckle plate 302. The hook 5 is externally disposed inside the first buckle groove 303.

[0030] Specifically, in this embodiment, the first card holder 301 is fixed to the end of the guide tube 2 away from the powder feeding channel 1. The first card plate 302 is set on one side of the first card holder 301. The first card slots 303 on both sides of the first card plate 302 cooperate with the card hooks 5. When the card hooks 5 are embedded in the first card slots 303, the powder feeding head 7 can be fixed to the first card holder 301 through the interlocking action of the two. The push plate 6 is fixedly connected to the card hooks 5. Pushing the push plate 6 can drive the card hooks 5 to move, so that the card hooks 5 are disengaged from the first card slots 303, thereby releasing the fixation between the powder feeding head 7 and the guide tube 2.

[0031] Example 2:

[0032] Reference Figure 3 and Figure 4 The buckle assembly 3 also includes a second buckle seat 304, which is externally fixedly connected to the other end of the conduit 2. A second buckle plate 305 is provided on one side of the second buckle seat 304. A second buckle groove 306 is provided inside the second buckle plate 305. The external parts of the push plate 6 are slidably connected to the inside of the first buckle seat 301 and the second buckle seat 304. The external parts of the powder feeding head 7 are fixedly connected to the first buckle seat 301 and the second buckle seat 304. The external parts of the hook 5 are provided inside the second buckle groove 306.

[0033] Specifically, in this embodiment, the second card plate 305 is disposed on the outside of one side of the second card holder 304, and the second card groove 306 opened inside it is adapted to the hook 5. The hook 5 is embedded in the inside of the second card groove 306 for fixation. The pushing plate 6 slides inside the second card holder 304. During the sliding process, the hook 5 moves synchronously. When the hook 5 disengages from the second card groove 306, the powder feeding head 7 disengages from the second card holder 304, realizing the quick disassembly of the powder feeding head 7. This can facilitate the quick disassembly of the powder feeding head 7 by the operator and improve the maintenance efficiency of the equipment.

[0034] Example 3:

[0035] Reference Figure 5 and Figure 6 Based on the above embodiments, this embodiment is used to solve the problem of powder deposition on the wall of powder feeding channel 1, which causes blockage, and is achieved through the following solution.

[0036] The powder feeding channel 1 has a spiral guide groove 8 inside; an air knife 9 is fixedly connected to the upper surface of the powder feeding channel 1, an air inlet 10 is provided on the outside of the air knife 9, an air outlet 11 is provided on the lower surface of the powder feeding channel 1, and an air inlet 12 is provided inside the spiral guide groove 8.

[0037] Specifically, in this embodiment, the spiral guide groove 8 inside the powder feeding channel 1 guides the wear-resistant alloy powder to flow along the spiral path, reducing powder deposition on the inner wall of the channel. The air knife 9 on the upper surface of the powder feeding channel 1 receives airflow through the external air vent 10. After being processed by the air knife 9, the airflow enters the spiral guide groove 8 through the air inlet 12 inside, disturbing the flowing powder and further breaking up any potentially agglomerated powder to prevent blockage. The air outlet 11 on the lower surface of the powder feeding channel 1 is used to discharge the airflow and any small amount of powder debris that may be carried within the channel, maintaining stable air pressure inside the channel and ensuring smooth powder delivery. This effectively reduces the deposition of wear-resistant alloy powder in the powder feeding channel 1 and prevents blockage.

[0038] Working principle: When it is necessary to use this powder feeding device for laser cladding of wear-resistant alloy on the inner wall of the bushing, the wear-resistant alloy powder first enters the powder feeding channel 1. Under the guidance of the spiral guide groove 8, it flows along the spiral path into the interior of the guide tube 2 to achieve conveying. When it is necessary to clean the powder feeding channel 1, the air inlet 10 introduces airflow into the air knife 9, and then discharges it through the air outlet 11. After the airflow is diverted by the air knife 9, it enters the spiral guide groove 8 through the air inlet 12, disturbing the wear-resistant alloy powder to avoid agglomeration and wall deposition, as well as a small amount of powder debris, thereby achieving the effect of avoiding blockage of the powder feeding channel 1.

[0039] The powder is conveyed to the powder feeding head 7 through the conduit 2, and the powder feeding head 7 guides the powder to the laser cladding area to complete the cladding operation in conjunction with the laser beam.

[0040] When maintenance or replacement of the powder feeding head 7 is required, push the push plate 6 to drive the hook 5 to disengage from the first slot 303, and separate the powder feeding head 7 from the first slot 301 for disassembly and maintenance. Alternatively, push the push plate 6 to drive the hook 5 to disengage from the second slot 306, and separate the powder feeding head 7 from the second slot 304 to achieve disassembly and maintenance, thereby improving the maintenance efficiency of the equipment.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A powder feeding device for laser cladding wear-resistant alloy on the inner wall of a bushing, comprising a powder feeding channel (1), characterized in that: The powder feeding channel (1) is externally fixedly connected to a guide tube (2), and the other end of the guide tube (2) is provided with a buckle assembly (3). The buckle assembly (3) is internally provided with a spring (4), and the other end of the spring (4) is provided with a hook (5). The hook (5) is externally fixedly connected to a push plate (6), and the buckle assembly (3) is externally fixedly connected to a powder feeding head (7).

2. The powder feeding device for laser cladding wear-resistant alloy on the inner wall of a bushing according to claim 1, characterized in that: The buckle assembly (3) includes a first buckle seat (301), which is externally fixedly connected to the other end of the conduit (2). A first buckle plate (302) is provided on one side of the first buckle seat (301), and first buckle grooves (303) are provided on both sides of the first buckle plate (302).

3. The powder feeding device for laser cladding wear-resistant alloy on the inner wall of a bushing according to claim 2, characterized in that: The buckle assembly (3) further includes a second card seat (304), which is externally fixedly connected to the other end of the conduit (2). A second card plate (305) is provided on one side of the second card seat (304), and a second card groove (306) is provided inside the second card plate (305).

4. The powder feeding device for laser cladding wear-resistant alloy on the inner wall of a bushing according to claim 3, characterized in that: The outside of the push plate (6) is slidably connected to the inside of the first card seat (301) and the second card seat (304), and the outside of the powder feeding head (7) is fixedly connected to the first card seat (301) and the second card seat (304).

5. The powder feeding device for laser cladding wear-resistant alloy on the inner wall of a bushing according to claim 2, characterized in that: The hook (5) is externally located inside the first slot (303).

6. The powder feeding device for laser cladding wear-resistant alloy on the inner wall of a bushing according to claim 3, characterized in that: The hook (5) is externally located inside the second slot (306).

7. The powder feeding device for laser cladding wear-resistant alloy on the inner wall of a bushing according to claim 1, characterized in that: The powder feeding channel (1) is provided with a spiral guide groove (8).

8. The powder feeding device for laser cladding wear-resistant alloy on the inner wall of a bushing according to claim 7, characterized in that: An air knife (9) is fixedly connected to the upper surface of the powder feeding channel (1). An air inlet (10) is provided on the outside of the air knife (9). An air outlet (11) is provided on the lower surface of the powder feeding channel (1). An air inlet (12) is provided inside the spiral guide groove (8).

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