A cold-spray aluminum replenishment device

Abstract

This utility model discloses a cold-spray aluminum replenishment device, relating to the technical field of aluminum powder replenishment devices. It includes a preparatory chamber, a quantitative replenishment tube, and an anti-clogging chamber. A rotating shaft is rotatably mounted within the quantitative replenishment tube, with helical blades fixed to its surface. A motor is connected to one end of the rotating shaft. A rotating rod is rotatably mounted between the two side walls of the anti-clogging chamber. A driven gear is fixed to one end of the rod, and a driving gear is fixed to one end of the rotating shaft. The driving and driven gears mesh with each other. An anti-clogging mechanism is installed within the inner cavity of the anti-clogging chamber. This utility model provides aluminum powder to the quantitative replenishment tube through the preparatory chamber. The anti-clogging chamber contains an anti-clogging mechanism, causing an anti-clogging block to continuously move up and down, contacting any clumps or arches of aluminum powder. The pointed shape of the anti-clogging block breaks up these clumps and arches, thus preventing blockage during the replenishment of the quantitative replenishment tube.

Description

Technical Field

[0001] This utility model relates to the technical field of aluminum powder replenishment devices, specifically a cold spray aluminum replenishment device. Background Technology

[0002] Cold spraying is a process based on the principles of aerodynamics and high-speed collision dynamics. First, high-pressure gas is introduced into a contraction-expansion type Laval nozzle. After the gas flows through the nozzle throat, it generates supersonic flow. Then, the powder is sent axially from the upstream of the nozzle into the airflow by the powder feeding gas, forming a high-speed particle stream. The powder collides with the substrate and undergoes violent plastic deformation to deposit and form a coating.

[0003] Chinese Patent Publication No. CN211142175U discloses a cold-spray aluminum powder replenishment device. This device includes a hopper and an intermittent aluminum powder adding mechanism. The hopper is connected to the powder feeder of the cold-spray device via a balancing air pipe and has a much larger capacity than the powder feeder. The inlet of the intermittent aluminum powder adding mechanism is connected to the outlet of the hopper, and the outlet is connected to the powder feeder, used to add aluminum powder from the hopper to the powder feeder in a timed and quantitative manner. This invention, by setting a large-capacity hopper and an intermittent aluminum powder adding mechanism, can replenish aluminum powder to the powder feeder in a timed and quantitative manner, greatly extending the continuous working time of the cold-spray device and improving production efficiency.

[0004] However, the aluminum powder replenishment device disclosed in the above patent still has certain shortcomings in actual application. During the aluminum powder replenishment process, due to the characteristic that aluminum powder is prone to agglomeration, bridging and arching are likely to occur, which can easily lead to blockage and hinder aluminum powder replenishment. Utility Model Content

[0005] The purpose of this utility model is to provide a cold spray aluminum replenishment device to solve the problem mentioned in the background art that existing cold spray aluminum powder replenishment devices are prone to bridging and arching during the aluminum powder replenishment process, which can easily lead to blockage and obstruction of aluminum powder replenishment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cold spray aluminum replenishment device, comprising a preparatory chamber, a quantitative replenishment tube disposed at the bottom of the preparatory chamber, an anti-blocking chamber connected between the preparatory chamber and the quantitative replenishment tube, a rotating shaft rotatably mounted in the tube body of the quantitative replenishment tube, a spiral blade fixed on the surface of the rotating shaft, a motor connected to one end of the rotating shaft, a rotating rod rotatably mounted between the two side walls of the anti-blocking chamber, a driven gear fixed at one end of the rotating rod, a driving gear fixed at one end of the rotating shaft, the driving gear and the driven gear meshing with each other, and an anti-blocking mechanism disposed in the inner cavity of the anti-blocking chamber.

[0007] Preferably, the anti-blocking mechanism includes a fixed plate, a through hole, and a movable rod. The two ends of the fixed plate are fixedly installed on the two side walls of the inner cavity of the anti-blocking cavity. The through hole is opened on the two side walls of the fixed plate, and the rod of the movable rod passes through the cavity of the through hole. There are two movable rods, and the two movable rods respectively move through the top walls of the two sides of the fixed plate.

[0008] Preferably, the anti-blocking mechanism further includes an anti-blocking block, a movable plate, and a spring. The anti-blocking block is disposed on the top of the fixed plate, and the bottom walls on both sides of the anti-blocking block are fixedly connected to the top ends of the two movable rods, respectively. The movable plate is fixedly connected to the bottom end of the movable rod. The spring is sleeved on the surface of the movable rod, and the two ends of the spring are respectively welded between the movable plate and the fixed plate.

[0009] Preferably, the anti-blocking mechanism further includes two eccentric cams fixedly installed on the surface of the rotating rod body, the eccentric cams being located directly below the movable plate.

[0010] Preferably, the cross-section of the anti-blocking block is an equilateral triangle.

[0011] Preferably, the top of the preparation chamber is connected to a feeding pipe, and the bottom of one end of the quantitative replenishment pipe is connected to a discharge pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention provides aluminum powder to the quantitative replenishment tube through a preparatory chamber. To prevent blockage during the replenishment process, an anti-blocking chamber with an anti-blocking mechanism is provided. A motor drives a rotating shaft, which in turn rotates a spiral blade, thus quantitatively conveying the aluminum powder entering the quantitative replenishment tube through the anti-blocking chamber. The rotating shaft also drives a drive gear, which meshes with a driven gear, causing a rotating rod to rotate. This rotation drives an eccentric cam to rotate continuously. During rotation, the eccentric cam contacts a movable plate, lifting it upwards. This upward movement of the movable plate compresses the anti-blocking block, causing the spring to compress. When the eccentric cam rotates to the other side, the anti-blocking block returns to its original position under its own weight and the spring's action. As the eccentric cam continues to rotate, the anti-blocking block moves up and down repeatedly, contacting any clumps or arches of aluminum powder. The pointed shape of the anti-blocking block breaks up these clumps and arches, preventing blockage during the replenishment of the quantitative replenishment tube. Attached Figure Description

[0014] Figure 1 This is a first-view structural schematic diagram of a cold spray aluminum replenishment device according to the present invention;

[0015] Figure 2 This is a partial cross-sectional view of the cold spray aluminum replenishment device of this utility model from a second perspective.

[0016] Figure 3 This is a partial cross-sectional view of the cold spray aluminum replenishment device of this utility model from a third perspective.

[0017] Figure 4 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0018] In the diagram: 1. Quantitative replenishment tube; 2. Feeding tube; 3. Anti-clogging chamber; 4. Preparatory chamber; 5. Feeding tube; 6. Motor; 7. Rotating shaft; 8. Driving gear; 9. Rotating rod; 10. Driven gear; 11. Spiral blade; 12. Fixed plate; 13. Through hole; 14. Eccentric cam; 15. Anti-clogging block; 16. Movable plate; 17. Movable rod; 18. Spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 This utility model provides a technical solution: a cold-spray aluminum replenishment device, including a preparation chamber 4 for preparing aluminum powder, a quantitative replenishment tube 1 disposed at the bottom of the preparation chamber 4, and an anti-blocking chamber 3 connected between the preparation chamber 4 and the quantitative replenishment tube 1, so that the aluminum powder in the preparation chamber 4 is fed into the anti-blocking chamber 3, and then introduced into the quantitative replenishment tube 1 through the anti-blocking chamber 3. A rotating shaft 7 is rotatably mounted in the cavity of the quantitative replenishment tube 1 via a bearing, and the left end of the rotating shaft 7 passes through the left side wall of the quantitative replenishment tube 1 via the bearing. A spiral blade 11 is welded to the shaft of the rotating shaft 7. On the surface of the body, the spiral blade 11 is located inside the quantitative replenishment tube 1. The motor 6 is connected to the left end of the rotating shaft 7 via a coupling. The rotating rod 9 is rotatably installed between the left and right side walls of the anti-blocking cavity 3 via a bearing, and the left end of the rotating rod 9 passes through the left side wall of the anti-blocking cavity 3. The driven gear 10 is welded to the left end of the rotating rod 9, and the driving gear 8 is welded to the left end of the rotating shaft 7. The driving gear 8 and the driven gear 10 mesh with each other. The purpose is to make the rotating rod 9 rotate together when the rotating shaft 7 rotates. An anti-blocking mechanism is provided in the inner cavity of the anti-blocking cavity 3.

[0021] The anti-blocking mechanism includes a fixed plate 12, through holes 13, and movable rods 17. The two ends of the fixed plate 12 are welded to the left and right side walls of the inner cavity of the anti-blocking cavity 3, respectively. The through holes 13 are respectively opened on the side walls of the fixed plate 12, and the rod of the rotating rod 9 passes through the cavity of the through hole 13. There are two movable rods 17, which respectively move through the top walls of the left and right sides of the fixed plate 12. The anti-blocking mechanism also includes an anti-blocking block 15, a movable plate 16, and a spring 18. The anti-blocking block 15 is located on the top of the fixed plate 12, and the bottom walls of the left and right sides of the anti-blocking block 15 are respectively connected to the two movable rods 17. The top of the rod is welded and connected. The movable plate 16 is welded to the bottom of the rod of the movable rod 17. The spring 18 is sleeved on the surface of the rod of the movable rod 17, and the two ends of the spring 18 are respectively welded between the plate of the movable plate 16 and the plate of the fixed plate 12. The anti-blocking mechanism also includes two eccentric cams 14 welded to the surface of the rotating rod 9. The eccentric cams 14 are located directly below the movable plate 16. The anti-blocking block 15 has an equilateral triangle cross section. The feeding pipe 5 is connected to the top of the preparatory chamber 4 to replenish aluminum powder. The feeding pipe 2 is connected to the bottom right end of the quantitative replenishment pipe 1 to connect to the cold spray equipment.

[0022] Aluminum powder is supplied to the quantitative replenishment tube 1 through the preparatory chamber 4. To prevent blockage during the replenishment process, an anti-blockage chamber 3 is provided, containing an anti-blockage mechanism. The motor 6 drives the rotating shaft 7 to rotate, which in turn drives the spiral blades 11, thus quantitatively conveying the aluminum powder entering the quantitative replenishment tube 1 through the anti-blockage chamber 3. The rotation of the rotating shaft 7 drives the drive gear 8 to rotate. Since the drive gear 8 meshes with the driven gear 10, the rotating rod 9 rotates, causing the eccentric cam 14 to rotate continuously. During rotation, the eccentric cam 14 contacts the moving part... Plate 16 is lifted upwards, and the upward movement of the movable plate 16 will drive the anti-blocking block 15 to move upwards, causing the spring 18 to be compressed. When the eccentric cam 14 turns to the other side, the anti-blocking block 15 is reset under its own weight and the action of the spring 18. As the eccentric cam 14 rotates continuously, the anti-blocking block 15 moves up and down repeatedly, and contacts the clumps and arches of aluminum powder. Since the pointed shape of the anti-blocking block 15 can break the clumps and arches, the aluminum powder is prevented from blocking the supply tube 1 during the replenishment process.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] 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. A cold-spray aluminum replenishment device, comprising a preparatory chamber (4), a quantitative replenishment tube (1) disposed at the bottom of the preparatory chamber (4), and an anti-blocking chamber (3) connecting the preparatory chamber (4) and the quantitative replenishment tube (1), characterized in that: A rotating shaft (7) is rotatably installed in the tube body of the quantitative replenishment tube (1). A spiral blade (11) is fixed on the surface of the shaft (7). A motor (6) is connected to one end of the shaft (7). A rotating rod (9) is rotatably installed between the two side walls of the anti-blocking cavity (3). A driven gear (10) is fixed to one end of the rod (9). A driving gear (8) is fixed to one end of the shaft (7). The driving gear (8) and the driven gear (10) mesh with each other. An anti-blocking mechanism is provided in the inner cavity of the anti-blocking cavity (3).

2. The cold-spray aluminum replenishment device according to claim 1, characterized in that: The anti-blocking mechanism includes a fixed plate (12), a through hole (13), and a movable rod (17). The two ends of the fixed plate (12) are fixedly installed on the inner side walls of the anti-blocking cavity (3). The through holes (13) are respectively opened on the two side walls of the plate of the fixed plate (12), and the rod of the rotating rod (9) passes through the cavity of the through hole (13). There are two movable rods (17), and the two movable rods (17) respectively move through the top walls of the two sides of the fixed plate (12).

3. The cold-spray aluminum replenishment device according to claim 2, characterized in that: The anti-blocking mechanism also includes an anti-blocking block (15), a movable plate (16), and a spring (18). The anti-blocking block (15) is located on the top of the fixed plate (12), and the bottom walls on both sides of the anti-blocking block (15) are fixedly connected to the top ends of the two movable rods (17). The movable plate (16) is fixedly connected to the bottom end of the movable rod (17). The spring (18) is sleeved on the surface of the movable rod (17), and the two ends of the spring (18) are welded between the plate of the movable plate (16) and the plate of the fixed plate (12).

4. The cold-spray aluminum replenishment device according to claim 3, characterized in that: The anti-blocking mechanism also includes two eccentric cams (14) fixedly installed on the surface of the rotating rod (9), with the eccentric cams (14) located directly below the movable plate (16).

5. The cold-spray aluminum replenishment device according to claim 3, characterized in that: The cross-section of the anti-blocking block (15) is an equilateral triangle.

6. The cold-spray aluminum replenishment device according to claim 1, characterized in that: The top of the preparatory chamber (4) is connected to the feeding pipe (5), and the bottom of one end of the quantitative replenishment pipe (1) is connected to the discharge pipe (2).

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