Annealing device for iron-chromium-aluminum alloy machining
By designing a support platform and a servo motor transmission mechanism inside the pit-type annealing furnace, the problem of furnace body damage caused by material frame shaking was solved, and the stable lifting and lowering of the material frame was achieved, thus protecting the furnace body.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN BAUHINIA NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-21
AI Technical Summary
In traditional pit-type annealing furnaces, the material frame shakes during loading and unloading, causing it to collide with the inner wall of the furnace and resulting in damage.
A load-bearing platform and a servo motor were designed to work together to drive the support frame to rise and fall via a threaded support rod, thereby preventing the material frame from shaking and avoiding contact with the inner wall of the furnace.
It effectively prevents the material frame from colliding with the inner wall of the furnace during lifting and lowering, protects the furnace body from damage, and extends the service life of the equipment.
Smart Images

Figure CN224530948U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of annealing equipment, and specifically relates to an annealing equipment for processing iron-chromium-aluminum alloys. Background Technology
[0002] Iron-chromium-aluminum alloy is an alloy with iron as the base material and chromium and aluminum as the main alloying elements. Its most significant characteristic is that a dense, stable, and highly adhesive alumina protective film can form on its surface at high temperatures. This film gives it extremely excellent resistance to oxidation and high-temperature corrosion.
[0003] Currently, annealing is required during the processing of iron-chromium-aluminum alloys. Annealing requires the use of annealing equipment, among which pit-type annealing furnaces are relatively common. However, traditional pit-type annealing furnaces have certain problems in use. For example, when loading and unloading materials, traditional pit-type annealing furnaces require the use of external overhead cranes or gantry cranes. When the cranes or gantry cranes lift or place the materials to be annealed into the annealing furnace, the material frame is suspended in the air and is prone to shaking. When placed into the annealing furnace, the shaking material frame is prone to contacting the inner wall of the annealing furnace, causing them to collide and damage the inner wall of the annealing furnace. Utility Model Content
[0004] The purpose of this utility model is to provide an annealing device for processing iron-chromium-aluminum alloys, which has the advantage of being collision-resistant.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an annealing device for processing iron-chromium-aluminum alloys, comprising a furnace body and a furnace cover detachably connected to the top of the furnace body, wherein the furnace body has an inner groove, the inner groove is fitted with a ceramic fiber lining, a threaded sleeve is symmetrically rotatably connected inside the inner groove, a threaded support rod is threadedly connected inside the threaded sleeve, a storage groove is symmetrically opened inside the furnace body, a bracket is provided inside the storage groove, one end of the threaded support rod passes through the inside of the storage groove and is fixedly connected to the bracket, a load-bearing platform is fixedly connected between the two brackets, a servo motor is installed at the bottom of the furnace body, and a transmission mechanism is provided at the bottom of the furnace body.
[0006] The above technical solution is as follows: This utility model has a support platform designed inside the furnace body. Under the action of a servo motor and a transmission mechanism, two threaded sleeves can be driven to rotate simultaneously, causing the two threaded support rods to drive the two brackets to rise and fall. The support platform rises and falls accordingly. When the material to be annealed is placed inside the material frame and the material frame is placed on the support platform, the annealing material inside the material frame can be raised and lowered inside the furnace body by the support platform. When the support platform descends into the furnace body or when the annealed material frame is removed from the furnace body with the annealed material, the material frame will not shake, avoiding contact between the material frame and the inner wall of the furnace body, and ensuring that the furnace body is not damaged.
[0007] The present invention is further configured such that a sleeve is symmetrically fixedly connected inside the inner groove, and the sleeve is fitted onto the surface of the threaded sleeve.
[0008] The above technical solution is adopted to protect the surface of the threaded sleeve.
[0009] The present invention is further configured such that a spiral heating induction coil is assembled inside the inner groove, and the two ends of the spiral heating induction coil are connected to an external power source.
[0010] The above technical solution facilitates the heating and annealing of iron-chromium-aluminum alloy annealing materials after they are placed inside the annealing furnace.
[0011] The present invention is further configured such that a thermocouple sensor is installed on the front of the furnace body, the working end of the thermocouple sensor extends into the interior of the furnace body, and a heating controller is assembled on the front of the furnace body.
[0012] The above technical solution facilitates the detection and control of the temperature inside the furnace body, using spiral heating induction coils for heating.
[0013] The present invention is further provided that a support base is fitted at the bottom of the furnace body.
[0014] The above technical solution is adopted to support the furnace body.
[0015] The present invention is further configured such that the transmission mechanism includes a first gear fixedly sleeved on the output end of the servo motor, a second gear meshing with the first gear is symmetrically rotatably connected to the bottom of the furnace body via a rotating shaft, and one end of the threaded support rod extends through to the bottom of the furnace body and is fixedly sleeved on a third gear meshing with the second gear.
[0016] Using the above technical solution: when the servo motor starts, it can drive the first gear to rotate, the first gear drives the two second gears to rotate in the same direction, the second gear drives the third gear to rotate, thereby driving the two threaded support rods to rotate simultaneously in the same direction.
[0017] The present invention is further configured such that the interior groove is filled with heat-insulating filler.
[0018] The above technical solution is adopted: the furnace body is insulated and heat-resistant.
[0019] In summary, this utility model has the following beneficial effects: 1. This utility model features a support platform inside the furnace body. With the help of a servo motor and transmission mechanism, two threaded sleeves can rotate simultaneously, causing the two threaded support rods to lift and lower the two brackets. The support platform moves up and down accordingly. When the material to be annealed is placed inside the material frame and then placed on the support platform, the annealing material inside the material frame can be lifted and lowered inside the furnace body by the support platform. When the support platform descends into the furnace body or when the annealed material frame is removed from the furnace body along with the annealed material, the material frame will not shake, preventing the material frame from contacting the inner wall of the furnace body and ensuring that the furnace body is not damaged. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural cross-sectional view of the present invention; Figure 3 This is a cross-sectional view of the furnace body structure of this utility model; Figure 4 This is the utility model Figure 2 Enlarged view of point A in the middle.
[0021] Reference numerals in the attached drawings: 1. Furnace body; 2. Furnace cover; 3. Inner groove; 4. Ceramic fiber lining; 5. Threaded sleeve; 6. Threaded support rod; 7. Storage slot; 8. Bracket; 9. Load-bearing platform; 10. Servo motor; 11. Transmission mechanism; 111. First gear; 112. Second gear; 113. Third gear; 12. Sleeve; 13. Helical heating induction coil; 14. Thermocouple sensor; 15. Heating controller; 16. Support base; 17. Thermal insulation filler. Detailed Implementation
[0022] The present invention will be further described in detail below with reference to the accompanying drawings.
[0023] Example 1: refer to Figure 1 , Figure 2 , Figure 3 and Figure 4An annealing apparatus for processing iron-chromium-aluminum alloys includes a furnace body 1 and a furnace cover 2 detachably connected to the top of the furnace body 1. The furnace body 1 has an inner groove 3, and a ceramic fiber lining 4 is installed inside the inner groove 3. Threaded sleeves 5 are symmetrically rotatably connected inside the inner groove 3. Threaded support rods 6 are threadedly connected inside the threaded sleeves 5. A storage groove 7 is symmetrically opened inside the furnace body 1. A bracket 8 is installed inside the storage groove 7. One end of the threaded support rod 6 passes through the inside of the storage groove 7 and is fixedly connected to the bracket 8. A load-bearing platform 9 is fixedly connected between the two brackets 8. A servo motor 10 is installed at the bottom of the furnace body 1, and a transmission mechanism 11 is installed at the bottom of the furnace body 1.
[0024] refer to Figure 2 and Figure 4 A sleeve 12 is symmetrically fixedly connected inside the inner groove 3. The sleeve 12 is fitted onto the surface of the threaded sleeve 5. The surface of the threaded sleeve 5 is protected by the sleeve 12.
[0025] refer to Figure 2 The inner groove 3 is equipped with a spiral heating induction coil 13, and the two ends of the spiral heating induction coil 13 are connected to an external power source. By setting the spiral heating induction coil 13, it is convenient for the iron-chromium-aluminum alloy annealing material to be placed into the annealing furnace for heating and annealing.
[0026] refer to Figure 1 A thermocouple sensor 14 is installed on the front of the furnace body 1. The working end of the thermocouple sensor 14 extends into the interior of the furnace body 1. A heating controller 15 is installed on the front of the furnace body 1. By setting the thermocouple sensor 14 and the heating controller 15, it is convenient to detect and control the temperature inside the furnace body 1 and to heat the spiral heating induction coil 13.
[0027] refer to Figure 1 , Figure 2 and Figure 3 The bottom of the furnace body 1 is equipped with a support base 16, which supports the furnace body 1.
[0028] refer to Figure 2 The transmission mechanism 11 includes a first gear 111 fixedly sleeved on the output end of the servo motor 10. The bottom of the furnace body 1 is symmetrically connected to a second gear 112 that meshes with the first gear 111 via a rotating shaft. One end of the threaded support rod 6 extends through to the bottom of the furnace body 1 and is fixedly sleeved on a third gear 113 that meshes with the second gear 112. By setting the first gear 111, the second gear 112, and the third gear 113, when the servo motor 10 is started, it can drive the first gear 111 to rotate. The first gear 111 drives the two second gears 112 to rotate in the same direction. The second gears 112 drive the third gear 113 to rotate, thereby driving the two threaded support rods 6 to rotate simultaneously in the same direction.
[0029] refer to Figure 2 and Figure 4 The interior of the groove 3 is filled with heat-insulating filler 17. By setting the heat-insulating filler 17, the furnace body 1 is heat-insulated.
[0030] Brief description of the usage process: When annealing material needs to be placed, the furnace cover 2 is lifted using external hoisting equipment. The servo motor 10 is started, and under the action of the transmission mechanism 11, it drives the two threaded sleeves 5 to rotate simultaneously. Since the two threaded support rods 6 are on the two brackets 8 and cannot rotate and their positions remain unchanged, the two threaded support rods 6 rise when the threaded sleeves 5 rotate. Under the action of the brackets 8, the support platform 9 rises. When the support platform 9 is at the top of the inner cavity of the furnace body 1, the hoisting equipment places the material frame with the material to be annealed on the support platform 9. After the material frame is placed on the support platform 9, the support platform 9 descends and resets to the inside of the furnace body 1 for annealing treatment. After annealing, the material frame will not shake on the support platform 9, preventing the material frame from contacting the inner wall of the furnace body 1 and ensuring that the furnace body 1 is not damaged.
[0031] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.
[0032] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. An annealing apparatus for processing iron-chromium-aluminum alloys, comprising a furnace body (1) and a furnace cover (2) detachably connected to the top of the furnace body (1), characterized in that: The furnace body (1) has an inner groove (3) inside, and a ceramic fiber lining (4) is installed inside the inner groove (3). A threaded sleeve (5) is symmetrically rotatably connected inside the inner groove (3). A threaded support rod (6) is threadedly connected inside the threaded sleeve (5). A storage groove (7) is symmetrically opened inside the furnace body (1). A bracket (8) is installed inside the storage groove (7). One end of the threaded support rod (6) passes through the inside of the storage groove (7) and is fixedly connected to the bracket (8). A load-bearing platform (9) is fixedly connected between the two brackets (8). A servo motor (10) is installed at the bottom of the furnace body (1). A transmission mechanism (11) is installed at the bottom of the furnace body (1).
2. The annealing apparatus for processing iron-chromium-aluminum alloys according to claim 1, characterized in that: A sleeve (12) is symmetrically fixedly connected inside the inner groove (3), and the sleeve (12) is fitted onto the surface of the threaded sleeve (5).
3. The annealing apparatus for processing iron-chromium-aluminum alloys according to claim 1, characterized in that: The inner groove (3) is equipped with a spiral heating induction coil (13), and the two ends of the spiral heating induction coil (13) are connected to an external power source.
4. The annealing apparatus for processing iron-chromium-aluminum alloys according to claim 1, characterized in that: A thermocouple sensor (14) is installed on the front of the furnace body (1), and the working end of the thermocouple sensor (14) extends into the interior of the furnace body (1). A heating controller (15) is installed on the front of the furnace body (1).
5. The annealing apparatus for processing iron-chromium-aluminum alloys according to claim 1, characterized in that: The bottom of the furnace body (1) is equipped with a support base (16).
6. The annealing apparatus for processing iron-chromium-aluminum alloys according to claim 1, characterized in that: The transmission mechanism (11) includes a first gear (111) fixedly sleeved on the output end of the servo motor (10), and a second gear (112) meshing with the first gear (111) is symmetrically rotated at the bottom of the furnace body (1) via a rotating shaft. One end of the threaded support rod (6) extends through to the bottom of the furnace body (1) and is fixedly sleeved on a third gear (113) meshing with the second gear (112).
7. The annealing apparatus for processing iron-chromium-aluminum alloys according to claim 1, characterized in that: The interior of the groove (3) is filled with thermal insulation filler (17).