A ring part heat treatment device

Abstract

This utility model belongs to the field of heat treatment technology for parts, and particularly relates to a heat treatment device for ring-shaped parts. The device includes a heat treatment furnace with a furnace door on the front, support legs and a geared motor on the bottom, and a fixed plate on the top surface inside the furnace. A central shaft rotates between the fixed plate and the furnace bottom, driven by the geared motor. A planetary carrier and fan blades are fixed on the central shaft. A first planetary shaft and a second planetary shaft rotate on the planetary carrier. A sun gear is mounted on the fixed plate. A first planetary gear meshes with the sun gear at the upper end of the first planetary shaft. The two planetary shafts are driven by meshing second and third planetary gears. A shelf is located at the lower end of the second planetary shaft, and a stepped rod is provided on the shelf for mounting ring-shaped parts. This utility model uses a planetary gear system to drive the ring-shaped parts to simultaneously revolve and rotate, and the fan blades disturb the airflow inside the furnace, ensuring uniform heating of the ring-shaped parts and effectively improving the heating effect.

Description

Technical Field

[0001] This utility model belongs to the field of heat treatment technology for parts, and particularly relates to a heat treatment device for ring-shaped parts. Background Technology

[0002] The quenching and tempering processes in the production of ring-shaped parts are generally heated using a heat treatment furnace. A heat treatment furnace is an industrial furnace that heats the heating medium inside the furnace, thereby heating the workpiece or material.

[0003] In commonly used heat treatment furnaces, the ring-shaped parts are placed directly on the racks inside the furnace without moving. The temperature varies at different locations inside the furnace, and the hot air circulation is poor, which can easily cause uneven heating of the outer wall of the ring-shaped parts, resulting in unsatisfactory heating effect and ultimately affecting the heat treatment quality of the ring-shaped parts. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a heat treatment device for ring-shaped parts, which solves the problem of uneven heating in existing heat treatment furnaces.

[0005] To achieve the above objectives, the main technical solutions adopted by this utility model include: A heat treatment apparatus for ring-shaped parts includes a heat treatment furnace. A fixed plate is fixedly mounted on the top surface of the heat treatment furnace. A central shaft is rotatably mounted between the fixed plate and the bottom surface of the heat treatment furnace. A planetary carrier is fixedly mounted on the central shaft. A first planetary shaft and a second planetary shaft are rotatably mounted on the planetary carrier. A sun gear is fixedly mounted on the outer surface of the fixed plate. A first planetary gear meshing with the sun gear is fixedly mounted on the upper end of the first planetary shaft. The first planetary shaft and the second planetary shaft are driven by a meshing second planetary gear and a third planetary gear. A shelf for placing ring-shaped parts is fixedly mounted on the lower end of the second planetary shaft.

[0006] Furthermore, several fan blades are fixedly mounted on the central shaft.

[0007] Furthermore, multiple crossbeams are fixed inside the shelf, and columns are fixed on the top surface of the crossbeams. Multiple evenly distributed stepped rods are fixed on the outer surface of the columns, and the ring-shaped parts can be fitted onto the stepped rods.

[0008] Furthermore, a geared motor is fixedly installed on the bottom surface of the heat treatment furnace, and the central shaft is driven to rotate by the geared motor.

[0009] Furthermore, the first planetary axis has multiple components that are evenly distributed around the central axis, and the second planetary axis has multiple components that are distributed circumferentially along the bottom surface of the planet carrier.

[0010] Furthermore, there are multiple planetary carriers, which are axially spaced along the central axis, and the first planetary shaft is rotatably mounted within each of the multiple planetary carriers.

[0011] Furthermore, the second planetary gear is fixedly mounted on the first planetary shaft, and the third planetary gear is fixedly mounted on the second planetary shaft.

[0012] Furthermore, the heat treatment furnace is equipped with a furnace door on the front.

[0013] Furthermore, multiple support legs are fixedly installed on the bottom surface of the heat treatment furnace.

[0014] The beneficial effects of this utility model are as follows: the central shaft is rotated by the geared motor, which drives the planetary carrier and the fan blades to rotate synchronously. While the planetary carrier drives the overall revolution of each shaft, the fixed sun gear meshes with the planetary gears to make the shelf carry the ring part to rotate. Finally, the ring part rotates and revolves simultaneously. In addition, the fan blades disturb the hot air in the furnace, making the temperature distribution in the furnace more uniform. All parts of the outer wall of the ring part can be fully heated, which solves the problem of uneven heating in the original equipment, resulting in better heating effect and more stable heat treatment quality of the ring part. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 is a first-view schematic diagram of the overall internal structure of this utility model; Figure 3 is a second-view schematic diagram of the overall internal structure of this utility model; Figure 4 is a structural schematic diagram of the storage rack of this utility model.

[0016] In the diagram: 1. Heat treatment furnace; 2. Furnace door; 3. Support leg; 4. Gear motor; 5. Fixed plate; 6. Sun gear; 7. First planetary gear; 8. Planetary carrier; 9. First planetary shaft; 10. Second planetary gear; 11. Third planetary gear; 12. Second planetary shaft; 13. Shelf; 14. Fan blade; 15. Central shaft; 16. Column; 17. Crossbeam; 18. Step rod; 19. Ring-shaped part. Detailed Implementation

[0017] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] like Figures 1-4 As shown, this utility model provides a heat treatment device for ring-shaped parts, including a heat treatment furnace 1. A furnace door 2 is mounted on the front of the furnace 1, allowing workpieces to be placed or removed from the furnace by opening the door 2. Multiple support legs 3 are fixed to the bottom of the heat treatment furnace 1, supporting the entire device. A geared motor 4 is also fixed to the bottom of the heat treatment furnace 1, serving as the power source for the entire rotating structure.

[0019] A fixed plate 5 is fixed to the top surface inside the heat treatment furnace 1. A central shaft 15 is rotatably mounted between the fixed plate 5 and the bottom surface of the heat treatment furnace 1. The lower end of the central shaft 15 is connected to the output end of the geared motor 4, and the central shaft 15 is driven to rotate by the geared motor 4. Multiple planetary carriers 8 are fixed to the shaft of the central shaft 15, and the planetary carriers 8 can rotate with the central shaft 15. Several fan blades 14 are also fixed to the shaft of the central shaft 15. When the fan blades 14 rotate with the central shaft 15, they can agitate the hot air in the heat treatment furnace 1, so that the air inside the furnace is circulated and the temperature distribution is more uniform.

[0020] Multiple first planetary shafts 9 are rotatably mounted inside the planet carrier 8, and these first planetary shafts 9 are evenly arranged around the central axis 15. Multiple second planetary shafts 12 are rotatably mounted on the bottom surface of the planet carrier 8, and these second planetary shafts 12 are distributed along the circumference of the bottom surface of the planet carrier 8. A sun gear 6 is fixed to the outer surface of the fixed disk 5, and the sun gear 6 remains stationary with the fixed disk 5. A first planetary gear 7 is fixed to the upper end of each first planetary shaft 9, and the sun gear 6 meshes with all the first planetary gears 7.

[0021] Multiple second planetary gears 10 are fixed to the shaft of the first planetary shaft 9. Each second planetary shaft 12 is fixedly equipped with a third planetary gear 11. The second planetary gears 10 and the third planetary gears 11 correspond one-to-one and mesh with each other for transmission. The lower end of the second planetary shaft 12 is fixedly connected to a shelf 13, which is used to hold the ring-shaped parts 19 to be heated.

[0022] The shelf 13 has multiple crossbeams 17 fixed inside, and uprights 16 are fixed on the top surface of the crossbeams 17. Multiple evenly distributed step bars 18 are fixed on the outer surface of the uprights 16. When in use, the ring part 19 is directly put on the step bar 18. The step-shaped bar can block the ring part 19 and prevent it from falling off when rotating.

[0023] In operation, first open furnace door 2, then place the annular parts 19 to be heated one by one onto the stepped rods 18. After placement, close furnace door 2, start the heat treatment furnace 1 to begin heating, and simultaneously turn on the geared motor 4. The geared motor 4 drives the central shaft 15 to rotate slowly, which in turn drives the planetary carrier 8 and fan blades 14 to rotate together. As the planetary carrier 8 rotates, it causes the first planetary shaft 9 and the second planetary shaft 12 to revolve around the central shaft 15. Because the sun gear 6 is fixed, the first planetary gear 7, while revolving, meshes with the sun gear 6 and begins to rotate on its own, causing the first planetary shaft 9 to rotate as well. As the first planetary shaft 9 rotates, it drives the second planetary shaft 12 to rotate as well through the meshing second planetary gears 10 and third planetary gears 11. Finally, the rack 13, carrying the annular parts 19, rotates both around the central shaft and on its own axis. At the same time, the fan blades 14 rotate continuously with the central shaft 15, constantly stirring the hot air inside the furnace to maintain a uniform temperature throughout the furnace. When the annular part 19 is rotating on its own axis while revolving around the sun, all parts of its outer wall can come into uniform contact with hot air, resulting in more even heating, better heating effect, and ultimately more guaranteed heat treatment quality of the annular part 19.

[0024] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any modifications, alterations, substitutions, and variations made by those skilled in the art to the above embodiments are within the scope of the present invention.

Claims

1. An annular part heat treatment apparatus comprising a heat treatment furnace (1), characterised in that, A fixed plate (5) is fixedly provided on the inner top surface of the heat treatment furnace (1). A central shaft (15) is rotatably provided between the fixed plate (5) and the inner bottom surface of the heat treatment furnace (1). A planetary carrier (8) is fixedly provided on the central shaft (15). A first planetary shaft (9) and a second planetary shaft (12) are rotatably provided on the planetary carrier (8). A sun gear (6) is fixedly provided on the outer surface of the fixed plate (5). A first planetary gear (7) meshing with the sun gear (6) is fixedly provided at the upper end of the first planetary shaft (9). The first planetary shaft (9) and the second planetary shaft (12) are driven by a meshing second planetary gear (10) and a third planetary gear (11). A shelf (13) for placing ring-shaped parts (19) is fixedly provided at the lower end of the second planetary shaft (12).

2. An apparatus for heat treating annular parts as defined in claim 1, wherein Several fan blades (14) are fixed on the central shaft (15).

3. An apparatus for heat treating annular parts as defined in claim 1, wherein The shelf (13) is fixed with multiple crossbeams (17), the top surface of the crossbeams (17) is fixed with columns (16), the outer surface of the columns (16) is fixed with multiple evenly distributed step bars (18), and the ring part (19) can be fitted onto the step bars (18).

4. The apparatus of claim 1 wherein, The bottom surface of the heat treatment furnace (1) is fixed with a geared motor (4), and the central shaft (15) is driven to rotate by the geared motor (4).

5. The apparatus of claim 1 wherein, The first planetary axis (9) has multiple axes that are evenly distributed around the central axis (15), and the second planetary axis (12) has multiple axes that are distributed around the bottom circumference of the planet carrier (8).

6. An apparatus for heat treating annular parts as defined in claim 5 wherein, Multiple planetary carriers (8) are provided, and the multiple planetary carriers (8) are axially spaced along the central axis (15). The first planetary shaft (9) is provided in the multiple planetary carriers (8) for common rotation.

7. An apparatus for heat treating annular parts as defined in claim 1 wherein, The second planetary gear (10) is fixedly mounted on the first planetary shaft (9), and the third planetary gear (11) is fixedly mounted on the second planetary shaft (12).

8. The apparatus of claim 1 wherein, The heat treatment furnace (1) has a furnace door (2) on the front.

9. The apparatus of claim 1 wherein, The bottom surface of the heat treatment furnace (1) is fixed with multiple support legs (3).

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