Shaft heat treatment device

Abstract

This utility model discloses a rotating shaft heat treatment device, including a heat treatment box. Several sets of fixed frames are fixedly connected to the lower side inside the heat treatment box. Four sets of connecting plates are fixedly connected to the two sides of the middle of each fixed frame. Support rollers are rotatably connected between the front and rear connecting plates. A rotating shaft is arranged between the two support rollers. Sliding grooves are opened on both sides of the fixed frame. Moving seats are slidably connected to both sides of the fixed frame. Two sets of support plates are fixedly connected to the upper part of the moving seats. A lifting frame is fixedly connected to the upper part of the support plates. A lifting block is slidably connected inside the lifting frame. A first motor is fixedly connected to one side of the lifting block. A rotating plate is fixedly connected to the power end of the first motor through the lifting block. Four sets of sliding rods are slidably connected inside the rotating plate. A contact plate is fixedly connected to one end of each sliding rod, enabling the heat treatment rotating shaft to rotate and making the heating of the rotating shaft more uniform.

Description

Technical Field

[0001] This utility model relates to the field of rotating shaft processing technology, specifically a rotating shaft heat treatment device. Background Technology

[0002] Heat treatment technology for shafts is a common method for processing metal materials, mainly used in the shaft manufacturing industry. It involves heating and cooling the shaft material to change its microstructure and properties, thereby improving the shaft's hardness, wear resistance, and service life.

[0003] Currently, during the tempering process, the shaft softens due to high temperatures. In addition, the shaft is subjected to gravity, which can cause it to bend during tempering. Furthermore, uneven heating of the shaft can also lead to deformation. Utility Model Content

[0004] The purpose of this invention is to provide a rotating shaft heat treatment device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotating shaft heat treatment device, comprising a heat treatment chamber, wherein several sets of fixed frames are fixedly connected to the lower side inside the heat treatment chamber, four sets of connecting plates are fixedly connected to the two sides of the middle part of the fixed frames, support rollers are rotatably connected between the connecting plates on the front and rear sides, a rotating shaft is provided between the support rollers on both sides, sliding grooves are provided on both sides of the fixed frames, movable seats are slidably connected to both sides of the fixed frames, two sets of support plates are fixedly connected to the upper part of the movable seats, a lifting frame is fixedly connected to the upper part of the support plates, a lifting block is slidably connected inside the lifting frame, a first motor is fixedly connected to one side of the lifting block, a rotating plate is fixedly connected to the power end of the first motor through the lifting block, four sets of sliding rods are slidably connected inside the rotating plate, and a contact plate is fixedly connected to one end of each sliding rod.

[0006] Preferably, a fixing plate is fixedly connected to the other end of the sliding rod, and a spring is fixedly connected between the fixing plate and the rotating plate, with the spring sleeved on the outside of the sliding rod.

[0007] Preferably, the lifting block is fixedly connected to lugs on both sides, a lifting rod is slidably connected inside one lug and the lifting rod is fixedly connected inside the lifting frame, and a threaded rod is threadedly connected inside the other lug, the lower part of the threaded rod is rotatably connected inside the lifting frame, and the upper part of the threaded rod penetrates the lifting frame and is fixedly connected to a second motor, the second motor being fixedly connected to the upper part of the lifting frame.

[0008] Preferably, a number of hydraulic cylinders are fixedly connected to the outside of the heat treatment box. The power end of the hydraulic cylinder penetrates the heat treatment box and is fixedly connected to the movable seat. A rack is fixedly connected to one side of the movable seat. A gear is meshed in the middle of the rack. The gear is rotatably connected to the middle of the inner side of the fixed frame. A limiting plate is fixedly connected to the other end of the rack.

[0009] Preferably, an isolation plate is fixedly connected to the middle of the heat treatment chamber, a number of vents are opened at the lower part of the isolation plate, an air inlet pipe is fixedly connected to the upper part of the heat treatment chamber, and a heating element is fixedly connected to the upper interior of the heat treatment chamber.

[0010] Preferably, the lower side of the vent is directly opposite the rotating shaft.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model places the rotating shaft in the middle between the two support rollers, and the second motor drives the threaded rod to move the lugs up and down along the lifting rod, so that the contact piece moves up and down to the coaxial position with the rotating shaft. The hydraulic cylinder pushes the moving seat on one side to move along the sliding groove, and the contact pieces on both sides contact the rotating shaft located in the middle of the support rollers. The first motor drives the rotating piece, and the sliding rod drives the contact piece to rotate, which can keep the heat treatment rotating shaft rotating and make the rotating shaft heat more evenly.

[0013] 2. This utility model also prevents excessive pressure from the contact piece on both sides of the rotating shaft, which would cause the rotating shaft to deform due to heat, by moving the fixed piece through the sliding rod when the contact piece contacts the rotating shaft. Attached Figure Description

[0014] Figure 1 This is a first-person perspective three-dimensional structural perspective view of the present invention;

[0015] Figure 2 This is an enlarged view of the lifting frame structure from a second perspective of this utility model;

[0016] Figure 3 This is a cross-sectional view of the third-view fixing frame structure of this utility model.

[0017] In the diagram: 1. Heat treatment chamber; 2. Fixing frame; 3. Connecting plate; 4. Support roller; 5. Rotating shaft; 6. Hydraulic cylinder; 7. Moving seat; 8. Sliding groove; 9. Support plate; 10. Lifting frame; 11. Lifting block; 12. First motor; 13. Second motor; 14. Rotating plate; 15. Sliding rod; 16. Contact plate; 17. Fixing plate; 18. Spring; 19. Threaded rod; 20. Lug; 21. Lifting rod; 22. Rack; 23. Gear; 24. Limiting plate; 25. Isolation plate; 26. Vent; 27. Heating plate; 28. Air inlet pipe. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-3 This utility model provides a technical solution: a rotating shaft heat treatment device, including a heat treatment box 1. Several sets of fixed frames 2 are fixedly welded to the lower side inside the heat treatment box 1. Four sets of connecting plates 3 are fixedly welded to both sides of the middle of the fixed frames 2. Support rollers 4 are rotatably installed between the front and rear connecting plates 3. A rotating shaft 5 is arranged between the two support rollers 4. The support rollers 4 support the rotating shaft 5 and rotate when the rotating shaft 5 rotates, ensuring smooth rotation of the rotating shaft 5. Sliding grooves 8 are opened on both sides of the fixed frames 2. Movable seats 7 are slidably installed on both sides of the fixed frames 2. Two sets of support plates 9 are fixedly welded to the upper part of the movable seats 7. A lifting frame 10 is fixedly welded to the part, and a lifting block 11 is slidably installed inside the lifting frame 10. A first motor 12 is installed on a flange on one side of the lifting block 11. The power end of the first motor 12 passes through the lifting block 11 and is connected to a rotating plate 14 via a coupling. Four sets of sliding rods 15 are slidably installed inside the rotating plate 14. A contact piece 16 is fixedly welded to one end of the sliding rod 15. By moving the moving seat 7 inward along the sliding groove 8, the contact pieces 16 on both sides contact the two ends of the rotating shaft 5. The first motor 12 drives the rotating plate 14, which in turn drives the contact pieces 16 to rotate through the sliding rods 15, thereby driving the rotating shaft 5 to rotate, making the heating of the rotating shaft 5 more uniform.

[0020] A fixing plate 17 is fixedly welded to the other end of the sliding rod 15. A spring 18 is fixedly welded between the fixing plate 17 and the rotating plate 14. The spring 18 is sleeved on the outside of the sliding rod 15. When the contact plate 16 contacts the rotating shaft 5, the fixing plate 17 is moved by the sliding rod 15. The fixing plate 17 stretches the spring 18 to prevent the contact plate 16 from putting too much pressure on both sides of the rotating shaft 5, causing the rotating shaft 5 to deform due to heat. Lugs 20 are fixedly welded to both sides of the lifting block 11. A lifting rod 21 is slidably installed inside one lug 20. The lifting rod 21 is fixedly welded to the inside of the lifting frame 10. A threaded rod 19 is installed inside the lug 20. The lower part of the threaded rod 19 is rotatably connected to the inside of the lifting frame 10, and the upper part of the threaded rod 19 passes through the coupling of the lifting frame 10 and is connected to a second motor 13. The flange of the second motor 13 is installed on the upper part of the lifting frame 10. The second motor 13 drives the threaded rod 19, causing the lug 20 to move up and down along the lifting rod 21, thereby moving the contact piece 16 up and down to the coaxial position with the rotating shaft 5, which can fix and rotate the rotating shaft 5 of different sizes. Several sets of hydraulic cylinders 6 are installed on the outer flange of the heat treatment box 1. The power end of the hydraulic cylinder 6 penetrates the heat treatment box 1. The movable seat 7 is threadedly connected to a rack 22 fixedly welded to one side. A hydraulic cylinder 6 drives one side of the movable seat 7 to move. A gear 23 is meshed in the middle of the rack 22. The gear 23 is rotatably connected to the inner middle of the fixed frame 2. When one side of the movable seat 7 moves, the rack 22 drives the gear 23 to rotate, and the gear 23 drives the other side of the rack 22 to move, thus moving the other side of the movable seat 7 the same distance. This ensures that the contact plates 16 on both sides simultaneously contact the rotating shaft 5 located in the middle of the support roller 4. A limiting plate 24 is fixedly welded to the other end of the rack 22 to control the movement distance of the rack 22. The rack 22 is restricted to prevent it from disengaging from the gear 23. A partition plate 25 is fixedly welded to the middle of the heat treatment chamber 1. Several sets of vents 26 are opened at the lower part of the partition plate 25. An air inlet pipe 28 is fixedly welded to the upper part of the heat treatment chamber 1. A heating element 27 is installed inside the upper side of the heat treatment chamber 1 by thread. The air inlet pipe 28 is equipped with an air intake component to draw gas in through the air inlet pipe 28. After being heated by the heating element 27, the gas is discharged through the vents 26 to heat treat the rotating shaft 5 inside the heat treatment chamber 1. The lower side of the vents 26 is directly opposite the rotating shaft 5, so that the hot air is directly facing the rotating shaft 5, thereby improving the heat treatment efficiency.

[0021] Working principle: In use, the rotating shaft 5 is placed in the middle between the two support rollers 4. The second motor 13 drives the threaded rod 19, which drives the lug 20 to move up and down along the lifting rod 21, thereby moving the contact piece 16 up and down to the coaxial position with the rotating shaft 5. The hydraulic cylinder 6 pushes the moving seat 7 on one side to move along the sliding groove 8. When the moving seat 7 moves, the rack 22 drives the gear 23 to rotate, and the gear 23 drives the rack 22 on the other side to move, thereby moving the moving seat 7 on the other side by the same distance, ensuring that the contact pieces 16 on both sides simultaneously contact the rotating shaft 5 located in the middle of the support rollers 4. When the contact piece 16 contacts the rotating shaft 5, the fixed piece 17 moves through the sliding rod 15. The fixed piece 17 stretches the spring 18 to prevent the contact piece 16 from putting too much pressure on both sides of the rotating shaft 5, causing the rotating shaft 5 to deform due to heat. The first motor 12 drives the rotating piece 14, which drives the contact piece 16 to rotate through the sliding rod 15, thereby driving the rotating shaft 5 to rotate, making the heating of the rotating shaft 5 more uniform.

[0022] 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.

[0023] 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 rotary heat treatment apparatus comprising a heat treatment chamber (1), characterized in that: The heat treatment box (1) has several sets of fixed frames (2) fixedly connected to the lower side inside. The fixed frames (2) have four sets of connecting plates (3) fixedly connected to the middle two sides. The connecting plates (3) on the front and rear sides are rotatably connected to the supporting rollers (4). The supporting rollers (4) on both sides are provided with a rotating shaft (5). The fixed frames (2) have sliding grooves (8) on both sides. The fixed frames (2) have sliding seats (7) on both sides. The moving seats (7) have two sets of supporting plates (9) fixedly connected to the upper part. The supporting plates (9) have a lifting frame (10) fixedly connected to the upper part. The lifting frame (10) has a lifting block (11) slidably connected inside. The lifting block (11) has a first motor (12) fixedly connected to one side. The power end of the first motor (12) passes through the lifting block (11) and is fixedly connected to a rotating plate (14). The rotating plate (14) has four sets of sliding rods (15) slidably connected inside. The sliding rods (15) have a contact plate (16) fixedly connected to one end.

2. A rotary shaft heat treatment apparatus according to claim 1, wherein: A fixing plate (17) is fixedly connected to the other end of the sliding rod (15), and a spring (18) is fixedly connected between the fixing plate (17) and the rotating plate (14). The spring (18) is sleeved on the outside of the sliding rod (15).

3. The apparatus of claim 1, wherein: The lifting block (11) has lugs (20) fixedly connected to both sides. A lifting rod (21) is slidably connected inside one lug (20). The lifting rod (21) is fixedly connected inside the lifting frame (10). A threaded rod (19) is threadedly connected inside the lug (20) on the other side. The lower part of the threaded rod (19) is rotatably connected inside the lifting frame (10). The upper part of the threaded rod (19) penetrates the lifting frame (10) and is fixedly connected to a second motor (13). The second motor (13) is fixedly connected to the upper part of the lifting frame (10).

4. The apparatus for heat treating a rotating shaft as set forth in claim 1, wherein: Several sets of hydraulic cylinders (6) are fixedly connected to the outside of the heat treatment box (1). The power end of the hydraulic cylinder (6) penetrates the heat treatment box (1) and is fixedly connected to the moving seat (7). A rack (22) is fixedly connected to one side of the moving seat (7). A gear (23) is meshed in the middle of the rack (22). The gear (23) is rotatably connected to the middle of the inner side of the fixed frame (2). A limiting plate (24) is fixedly connected to the other end of the rack (22).

5. The apparatus for heat treating a rotating shaft as set forth in claim 1, wherein: An isolation plate (25) is fixedly connected to the middle of the heat treatment box (1). Several sets of air vents (26) are opened at the lower part of the isolation plate (25). An air inlet pipe (28) is fixedly connected to the upper part of the heat treatment box (1). A heating element (27) is fixedly connected to the upper inside of the heat treatment box (1).

6. A rotary shaft heat treatment apparatus according to claim 5, wherein: The vent (26) is directly opposite the rotating shaft (5) on its lower side.

Images