Vacuum drying device for alloy powder production

Abstract

The utility model relates to the technical field of drying devices, and discloses a vacuum drying device for alloy powder production, which comprises a drying cavity, the top of the drying cavity is fixedly connected with a motor I, the driving end of the motor I is fixedly connected with a rotating rod, and the outer part of the rotating rod is slidably connected with a filter screen. A protective shell is fixedly connected to the bottom of the rotating rod, a second motor is fixedly connected to the interior of the protective shell, a first bevel gear is fixedly connected to the driving end of the second motor, a rotating shaft is rotationally connected to the interior of the protective shell, a second bevel gear is fixedly connected to the exterior of the rotating shaft, and the first bevel gear and the second bevel gear are in meshed connection. According to the utility model, the second motor is started to drive the first bevel gear to rotate, and the rotation of the first bevel gear drives the second bevel gear to rotate, so that the second bevel gear drives the rotating shaft to rotate, and the cams on the two sides of the rotating shaft rotate.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, and in particular to a vacuum drying device for alloy powder production. Background Technology

[0002] Alloy powder is a powder with metallic properties composed of two or more metallic elements, or metallic and non-metallic elements. Cobalt-chromium alloy powder is mainly composed of cobalt and chromium, and often contains elements such as molybdenum and tungsten. It has high strength, high hardness, good wear resistance and corrosion resistance, and excellent biocompatibility. It is widely used in dental restoration, orthopedic implants, aerospace and other fields, and is an important basic material for high-end manufacturing and medical industries.

[0003] Existing vacuum drying equipment for alloy powder production mainly consists of a drying chamber, a heating system, and a vacuum system. The drying chamber holds the alloy powder to be dried, the heating system provides heat for drying, and the vacuum system removes air from the drying chamber to create a vacuum environment. In this vacuum environment, the boiling point of water is lowered, causing the moisture in the alloy powder to evaporate at a lower temperature. Simultaneously, the heating system provides heat to accelerate the vaporization of moisture, thereby achieving the drying of the alloy powder.

[0004] Existing vacuum drying equipment used for alloy powder production produces alloy powder that is not fully dispersed and clumps together, affecting product quality. Therefore, a new vacuum drying equipment for alloy powder production is proposed to solve this problem. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a vacuum drying device for alloy powder production, which aims to improve the problem of fully dispersing alloy powder in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A vacuum drying apparatus for alloy powder production includes a drying chamber. A motor is fixedly connected to the top of the drying chamber. A rotating rod is fixedly connected to the drive end of the motor. A filter screen is slidably connected to the outside of the rotating rod. A protective shell is fixedly connected to the bottom of the rotating rod. A motor is fixedly connected to the inside of the protective shell. A helical gear is fixedly connected to the drive end of the motor. A rotating shaft is rotatably connected inside the protective shell. A helical gear is fixedly connected to the outside of the rotating shaft. The helical gear and the helical gear are meshed. Cams are fixedly connected to both ends of the rotating shaft. A cleaning component is fixedly connected to the outside of the rotating rod.

[0008] As a further description of the above technical solution:

[0009] The cleaning component includes a fixed rod, a motor three is fixedly connected to the outside of the fixed rod, a gear is fixedly connected to the drive end of the motor three, a sliding plate is slidably connected inside the fixed rod, a rack is fixedly connected to the outside of the sliding plate, the gear and the rack are meshed, and a scraper is fixedly connected to one end of the sliding plate.

[0010] As a further description of the above technical solution:

[0011] A heating tube is installed on the outside of the drying chamber. A shell is fixedly connected to the outside of the heating tube. A fixing ring is fixedly connected to the outside of the shell. Supports are fixedly connected to the bottom of the fixing ring around its perimeter.

[0012] As a further description of the above technical solution:

[0013] A heater is fixedly connected to the outside of the housing, and the heating tube is fixedly connected to the inside of the heater.

[0014] As a further description of the above technical solution:

[0015] A vacuum pump is fixedly connected to the top of the drying chamber, and an exhaust pipe is fixedly connected to the outside of the outer shell.

[0016] As a further description of the above technical solution:

[0017] The top of the drying chamber is fixedly connected to a feed inlet, and the bottom of the drying chamber is fixedly connected to a discharge outlet. One-way valves are fixedly connected to the outside of the feed inlet, the discharge outlet, and the exhaust pipe.

[0018] As a further description of the above technical solution:

[0019] The filter screen is slidably connected to the inner wall of the drying chamber, and the outer side of the cam is in contact with the bottom of the filter screen;

[0020] As a further description of the above technical solution:

[0021] Multiple agitator plates are fixedly connected to the outside of the rotating rod, and the outside of the scraper plates is in contact with the inner wall of the drying chamber.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the starting motor 2 drives the helical gear 1 to rotate, and the rotation of the helical gear 1 drives the helical gear 2 to rotate. Therefore, the helical gear 2 drives the rotating shaft to rotate, thereby causing the cams on both sides of the rotating shaft to rotate. This causes the filter screen in contact with the cam to vibrate up and down on the inner wall of the drying chamber as the cam rotates, thereby breaking up the agglomerated alloy powder when the filter screen comes into contact with the stirring plate, thus preventing the discharge of agglomerated alloy powder.

[0024] 2. In this utility model, the gear is driven to rotate by the motor three, and the rack is fixed to the sliding plate. The rotation of the gear drives the sliding plate to slide along the inner wall of the fixed rod until the scraper contacts the inner wall of the drying chamber. Under the rotation of the rotating rod driven by the motor one, the scraper will clean the inner wall of the drying chamber, so as to prevent the alloy powder adhering to the inner wall of the drying chamber from affecting the heat transfer of the heating tube, reducing the drying efficiency, and extending the service life of the scraper. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a vacuum drying device for alloy powder production proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of a filter screen for a vacuum drying device used in alloy powder production, as proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the structure of a cam in a vacuum drying device for alloy powder production proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the scraper structure of a vacuum drying device for alloy powder production proposed in this utility model.

[0029] Legend:

[0030] 1. Outer shell; 2. Heater; 3. Heating tube; 4. Drying chamber; 5. Motor 1; 6. Rotating rod; 7. Stirring plate; 8. Filter screen; 9. Protective shell; 10. Motor 2; 11. Helical gear 1; 12. Helical gear 2; 13. Rotating shaft; 14. Cam; 15. Fixing rod; 16. Motor 3; 17. Gear; 18. Rack; 19. Sliding plate; 20. Scraper; 21. Discharge port; 22. Inlet port; 23. Exhaust pipe; 24. One-way valve; 25. Vacuum pump; 26. Fixing ring; 27. Support column. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1 to 3This utility model provides an embodiment of a vacuum drying device for alloy powder production, comprising a drying chamber 4, a motor 5 fixedly connected to the top of the drying chamber 4, the motor 5 providing rotational power, a rotating rod 6 fixedly connected to the drive end of the motor 5, the rotating rod 6 rotating synchronously with the motor 5, a filter screen 8 slidably connected to the outside of the rotating rod 6, the filter screen 8 moving axially on the rotating rod 6, a protective shell 9 fixedly connected to the bottom of the rotating rod 6, a motor 10 fixedly connected inside the protective shell 9, the motor 10 fixedly installed inside the protective shell 9 providing power, a helical gear 11 fixedly connected to the drive end of the motor 10, the helical gear 11 rotating with the motor 10, and a rotating shaft 13 rotatably connected inside the protective shell 9, the rotating shaft 13 rotating freely within the protective shell 9, serving as an intermediate component for power transmission. A helical gear 12 is fixedly connected to the outside of shaft 13. Helical gear 12 meshes with helical gear 11, transmitting the power of motor 10 to shaft 13 and changing the transmission direction. Helical gear 11 and helical gear 12 are meshed, converting the rotational motion of motor 10 into the rotational motion of shaft 13. Cams 14 are fixedly connected to both ends of shaft 13. The fixed ends ensure that cams 14 rotate synchronously with shaft 13. The eccentric structure of cams 14 generates periodic undulating motion during rotation. Filter screen 8 is slidably connected to the inner wall of drying chamber 4. The outside of cam 14 contacts the bottom of filter screen 8. The rotational motion of cam 14 is converted into the up-and-down vibration of filter screen 8. A cleaning component is fixedly connected to the outside of rotating rod 6. During rotation, the cleaning component mechanically scrapes the inner wall of drying chamber 4 to remove the attached alloy powder.

[0033] Reference Figure 1 , Figure 4 The cleaning assembly includes a fixed rod 15, to which a motor 16 is fixedly connected, providing power. A gear 17 is fixedly connected to the drive end of the motor 16, rotating synchronously with the motor. A sliding plate 19 is slidably connected inside the fixed rod 15, reciprocating linearly within the fixed rod 15 to guide and support the movement of the scraper 20. A rack 18 is fixedly connected to the outside of the sliding plate 19, meshing with the gear 17. The rack 18 engages with the gear 17, thus moving the gear 17... The rotational motion is converted into the linear motion of the sliding plate 19. A scraper 20 is fixedly connected to one end of the sliding plate 19. The scraper 20 moves synchronously with the sliding plate 19. Multiple stirring plates 7 are fixedly connected to the outside of the rotating rod 6. The stirring plates 7 rotate synchronously with the rotating rod 6. When the multiple stirring plates 7 rotate, they fully stir the alloy powder in the drying chamber 4, increasing the fluidity of the powder and the uniformity of heating. The outside of the scraper 20 is in contact with the inner wall of the drying chamber 4. The scraper 20 can effectively scrape off the powder attached to the inner wall of the drying chamber 4, preventing the powder from accumulating and affecting the drying effect.

[0034] Reference Figure 1 , Figure 2 A heating tube 3 is installed outside the drying chamber 4, surrounding the drying chamber 4 and evenly transferring heat to the interior of the drying chamber 4 through heat conduction, providing the necessary thermal energy for drying the alloy powder. A shell 1 is fixedly connected to the outside of the heating tube 3, protecting it and reducing heat loss, thus improving thermal efficiency. A fixing ring 26 is fixedly connected to the outside of the shell 1, with support pillars 27 fixedly connected around the bottom of the fixing ring 26. These support pillars 27 support the device on the ground, ensuring overall stability. A heater 2 is fixedly connected to the outside of the shell 1, with the heating tube 3 fixedly connected inside the heater 2. 2 provides electrical energy to the heating tube 3 and controls the heating power to regulate the drying temperature. A vacuum pump 25 is fixedly connected to the top of the drying chamber 4. The vacuum pump 25 extracts the air from the drying chamber 4 to form a vacuum environment, which lowers the boiling point of water and accelerates the drying process. An exhaust pipe 23 is fixedly connected to the outside of the outer shell 1. The exhaust pipe 23 serves as a channel for the discharge of water vapor and gas generated during the drying process. A feed inlet 22 is fixedly connected to the top of the drying chamber 4, and a discharge outlet 21 is fixedly connected to the bottom of the drying chamber 4. One-way valves 24 are fixedly connected to the outside of the feed inlet 22, the discharge outlet 21, and the exhaust pipe 23. The one-way valves 24 control the feeding and discharging of alloy powder and control the discharge of gas.

[0035] Working principle: Alloy powder is fed into the drying chamber 4 through the feed inlet 22. The vacuum pump 25 then evacuates the drying chamber 4 to a vacuum state. The heater 2 is activated to transfer heat to the drying chamber 4 through the heating tube 3. The motor 5 drives the rotating rod 6 to rotate, which in turn drives the stirring plate 7 to stir the alloy powder in the drying chamber 4, ensuring uniform heating. After the alloy powder is dried, the motor 10 drives the helical gear 11 to rotate, which in turn drives the helical gear 12 to rotate. Therefore, the helical gear 12 drives the rotating shaft 13 to rotate, which in turn causes the cams 14 on both sides of the rotating shaft 13 to rotate. The filter screen 8, which is in contact with the cams 14, vibrates up and down on the inner wall of the drying chamber 4 as the cams 14 rotate. The alloy powder in the drying chamber 4 will pass through the filter screen 8 and enter the discharge port 21. Some clumps of alloy powder will be broken up when the filter screen 8 comes into contact with the stirring plate 7, thus preventing clumps of alloy powder from being discharged.

[0036] Motor 16 drives gear 17 to rotate, and gear 17 meshes with rack 18. Rack 18 is fixed to sliding plate 19, so the rotation of gear 17 causes sliding plate 19 to slide along the inner wall of fixed rod 15 until scraper 20 contacts the inner wall of drying chamber 4. Under the rotation of rotating rod 6 driven by motor 5, scraper 20 cleans the inner wall of drying chamber 4. This also prevents alloy powder from adhering to the inner wall of drying chamber 4 during the drying process, affecting the heat transfer of heating tube 3 and thus reducing drying efficiency. After cleaning, scraper 20 can be retracted by motor 16 to avoid constant contact with the inner wall of drying chamber 4 and extend the service life of scraper 20. 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 vacuum drying apparatus for alloy powder production, comprising a drying chamber (4), characterized in that: The top of the drying chamber (4) is fixedly connected to a motor (5), the drive end of the motor (5) is fixedly connected to a rotating rod (6), the outside of the rotating rod (6) is slidably connected to a filter screen (8), the bottom of the rotating rod (6) is fixedly connected to a protective shell (9), the inside of the protective shell (9) is fixedly connected to a motor (10), the drive end of the motor (10) is fixedly connected to a helical gear (11), the inside of the protective shell (9) is rotatably connected to a rotating shaft (13), the outside of the rotating shaft (13) is fixedly connected to a helical gear (12), the helical gear (11) and the helical gear (12) are meshed, both ends of the rotating shaft (13) are fixedly connected to cams (14), and the outside of the rotating rod (6) is fixedly connected to a cleaning component.

2. The vacuum drying apparatus for alloy powder production according to claim 1, characterized in that: The cleaning assembly includes a fixed rod (15), a motor (16) is fixedly connected to the outside of the fixed rod (15), a gear (17) is fixedly connected to the drive end of the motor (16), a sliding plate (19) is slidably connected inside the fixed rod (15), a rack (18) is fixedly connected to the outside of the sliding plate (19), the gear (17) and the rack (18) are meshed, and a scraper (20) is fixedly connected to one end of the sliding plate (19).

3. The vacuum drying apparatus for alloy powder production according to claim 1, characterized in that: A heating tube (3) is installed on the outside of the drying chamber (4). A shell (1) is fixedly connected to the outside of the heating tube (3). A fixing ring (26) is fixedly connected to the outside of the shell (1). Supports (27) are fixedly connected to the bottom of the fixing ring (26).

4. A vacuum drying apparatus for alloy powder production according to claim 3, characterized in that: A heater (2) is fixedly connected to the outside of the outer shell (1), and the heating tube (3) is fixedly connected to the inside of the heater (2).

5. A vacuum drying apparatus for alloy powder production according to claim 3, characterized in that: A vacuum pump (25) is fixedly connected to the top of the drying chamber (4), and an exhaust pipe (23) is fixedly connected to the outside of the outer shell (1).

6. A vacuum drying apparatus for alloy powder production according to claim 5, characterized in that: The top of the drying chamber (4) is fixedly connected to a feed inlet (22), and the bottom of the drying chamber (4) is fixedly connected to a discharge outlet (21). The feed inlet (22), the discharge outlet (21) and the exhaust pipe (23) are all fixedly connected to a one-way valve (24).

7. A vacuum drying apparatus for alloy powder production according to claim 1, characterized in that: The filter screen (8) is slidably connected to the inner wall of the drying chamber (4), and the outside of the cam (14) is in contact with the bottom of the filter screen (8).

8. A vacuum drying apparatus for alloy powder production according to claim 2, characterized in that: Multiple agitator plates (7) are fixedly connected to the outside of the rotating rod (6), and the outside of the scraper (20) is in contact with the inner wall of the drying chamber (4).

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