An air jet assembly for use with an APS

Abstract

The utility model discloses an air injection assembly used for APS, including the main body frame of annular, the main body frame is equipped with the gap on one side and is equipped with the connecting lug on both sides of gap, and the connecting lug between two realizes the connection locking through bolt, and the both sides of main body frame are equipped with the support symmetry, and the support is hinged with the rotary block through the pin shaft correspondence in, and the rotary block is installed with the injection joint, and the front end ball of injection joint is articulated with the purge nozzle, and the lateral of main body frame is equipped with the radial installation platform, and the inner thread hole of installation platform middle radial penetration, and the powder delivery connection pipe is installed with the screwing in the inner thread hole. When using, the injection assembly is fixed and installed on the nozzle, the powder delivery connection pipe is butt jointed with the material cylinder of spraying nozzle, the injection joint is connected with the high pressure gas pipe, and the purge nozzle can turn to any angle, so that the blowing range can be flexibly adjusted.

Description

Technical Field

[0001] This utility model relates to the field of atmospheric plasma spraying technology, specifically an air jetting component used in APS. Background Technology

[0002] Atmospheric plasma spraying (APS) is a widely used thermal spraying process. APS uses a plasma arc to spray molten powder material onto the surface of another material. During plasma spraying, the collision of high-temperature plasma with the metal surface generates a large amount of charge accumulation, causing dust and impurities to adhere to the workpiece surface due to electrostatic attraction, affecting the spraying effect. Therefore, compressed air is used for purging and cleaning. Currently, most purging and spraying assemblies are fixedly installed, limiting the purging range and making it difficult to meet the needs of various processes. Utility Model Content

[0003] The purpose of this invention is to provide an air injection assembly for APS to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an air jet assembly for APS, comprising a ring-shaped main frame, the main frame having a notch on one side and connecting ears on both sides of the notch, the two connecting ears being connected and locked together by bolts, supports symmetrically provided on both sides of the main frame, rotating blocks being hinged to the supports by pins, jet connectors being installed in the rotating blocks, and a purging nozzle being ball-jointed at the front end of the jet connector, a radial mounting platform being provided on the outer side of the main frame, and a radially penetrating internal threaded hole in the center of the mounting platform, a powder feeding pipe being screwed into the internal threaded hole.

[0005] Preferably, the injection connector extends through the end of the rotating block and the tail end of the injection connector is used to connect to the air pipe for input compressed air.

[0006] Preferably, the powder feeding pipe is located on the symmetrical center line of the two supports.

[0007] Compared with the prior art, the beneficial effects of this utility model are: when in use, the spraying assembly is fixedly installed on the nozzle, the powder feeding pipe is connected to the material cylinder of the spraying nozzle, the spraying connector is connected to the high-pressure air pipe, and the purging nozzle can be rotated to any angle, thereby flexibly adjusting the purging range. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0009] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0010] Figure 3This is a schematic diagram of the installation structure of the purging nozzle.

[0011] In the diagram: 1. Main frame; 2. Connecting ear; 3. Bracket; 4. Rotating block; 5. Powder feeding pipe; 6. Blowing nozzle; 7. Spraying connector; 8. Bolt. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0013] Please see Figure 1-3 This utility model provides a technical solution: an air jet assembly for APS, including a ring-shaped main frame 1. The main frame 1 has a notch on one side and connecting ears 2 on both sides of the notch. The two connecting ears 2 are connected and locked together by bolts 8. In use, the main frame 1 is fitted onto the nozzle and the bolts 8 are tightened. Supports 3 are symmetrically arranged on both sides of the main frame 1. Rotating blocks 4 are hinged to the supports 3 via pins. A jet connector 7 is installed in the rotating block 4. The jet connector 7 passes through the end of the rotating block 4, and its tail end is used to connect to an air pipe for compressed air input. A purging nozzle 6 is ball-jointed at the front end of the jet connector 7. The purging nozzle 6 can rotate to any angle, thus allowing flexible adjustment of the purging range. A radial mounting platform is provided on the outer side of the main frame 1. An internally threaded hole is radially penetrating the center of the mounting platform. A powder feeding pipe 5 is screwed into the internally threaded hole. The powder feeding pipe 5 is located on the symmetrical center line of the two supports 3. In spraying use, the inner end of the powder feeding pipe 5 is connected to the material cylinder cavity of the spray nozzle.

[0014] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An air injection assembly for APS, comprising a ring-shaped main frame (1), wherein the main frame (1) has a notch on one side and connecting ears (2) on both sides of the notch, and the two connecting ears (2) are connected and locked together by bolts (8), characterized in that: The main frame (1) is provided with symmetrical supports (3) on both sides. A rotating block (4) is hinged in the support (3) via a pin. A spray connector (7) is installed in the rotating block (4). A purging nozzle (6) is ball-jointed at the front end of the spray connector (7). A radial mounting platform is provided on the outer side of the main frame (1). A radially penetrating internal thread hole is provided in the middle of the mounting platform. A powder feeding pipe (5) is screwed into the internal thread hole.

2. The air injection assembly for use in an APS according to claim 1, characterized in that: The injection connector (7) passes through the end of the rotating block (4), and the tail end of the injection connector (7) is used to connect to the air pipe for inputting compressed air.

3. An air injection assembly for use in an APS according to claim 1, characterized in that: The powder feeding pipe (5) is located on the symmetrical center line of the two supports (3).

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