A housing casting heat treatment apparatus

Abstract

This utility model discloses a heat treatment device for shell castings, aiming to solve the problem of uneven heating of the castings in the heating furnace, which reduces the practicality of the heat treatment device. The key technical points are: a heat treatment device for shell castings includes a heating furnace, a casting placement rack slidably connected inside the heating furnace, several placement frames on the casting placement rack, cavities inside the placement frames for placing the castings, and first hooks installed in the cavities. A casting rotating frame is located directly above the casting placement rack, and several second hooks adapted to the first hooks are installed on the casting rotating frame. A rotating assembly is provided on the heating furnace for driving the casting rotating frame to rotate within the heating furnace. This heat treatment device for shell castings ensures that the castings are fully heated in the heating furnace before being removed, guaranteeing the quality of the produced castings.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment technology for castings, and more specifically, it relates to a heat treatment device for shell castings. Background Technology

[0002] The main working parts and tools on a rolling mill that cause continuous plastic deformation of metal are the rolls. The rolls are mainly composed of three parts: the roll body, the roll neck, and the shaft end. The roll body is the middle part of the roll that actually participates in rolling the metal. It has a smooth cylindrical or grooved surface. The roll neck is installed in the bearing and transmits the rolling force to the stand through the bearing housing and the pressing device. The shaft end of the transmission end is connected to the gear housing through the connecting shaft and transmits the rotational torque of the motor to the roll. In order to extend the service life of the roll body, the roll body surface needs to be heat treated during production.

[0003] When using existing heat treatment equipment, the roll castings are placed in the heating furnace, which results in uneven heating of the roll castings and reduces the practicality of the heat treatment equipment.

[0004] To address the aforementioned issues, an existing heat treatment apparatus for processing roll castings, disclosed in CN217997271U, includes an apparatus housing. A mounting component is disposed on the top of the apparatus housing. A drive motor is mounted on one side of the mounting component, and the output shaft of the drive motor is connected to a first fixing block. A clamping cylinder is mounted on the other side of the mounting component, and a connecting rod is connected to the output end of the clamping cylinder. A second fixing block is disposed on one side of the connecting rod, and a limit block is disposed at the end of the connecting rod. A bearing is disposed on the outer wall of the connecting rod near the second fixing block. An adjusting motor is fixed inside the apparatus housing.

[0005] The heat treatment device described above, through a drive motor mounted on the mounting component, can drive the first fixed block to rotate, thereby causing the clamped roll casting to rotate. This allows for uniform heating of the roll casting, effectively preventing uneven heating and improving practicality.

[0006] Meanwhile, this utility model proposes a new solution to address the problem that uneven heating of the roll castings caused by placing them in the heating furnace reduces the practicality of the heat treatment device. Utility Model Content

[0007] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a heat treatment equipment for shell castings, which can ensure that the castings are fully heated in the heating furnace before being taken out, thus ensuring the quality of the castings produced.

[0008] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a heat treatment device for a shell casting, including a heating furnace, a casting placement rack slidably connected inside the heating furnace, a plurality of placement frames provided on the casting placement rack, cavities for placing castings being opened inside the plurality of placement frames, a first hook provided in the cavity, a casting rotating frame provided directly above the casting placement rack, a plurality of second hooks adapted to the first hooks provided on the casting rotating frame, and a rotating assembly provided on the heating furnace for driving the casting rotating frame to rotate inside the heating furnace.

[0009] By adopting the above technical solution, workers can move the casting placement rack out of the heating furnace through the cooperation of slide rails. This allows the workers to move the casting placement rack out of the furnace, and the placement frames piled on the rack also move out with it. Then, the workers place the castings requiring heat treatment into several placement frames. As the frames slide, they move into the heating furnace along with the casting placement rack. The workers can then engage the first hook on the placement frame with the second hook on the casting rotation frame to fix the frame in place. Finally, the rotating component drives the casting placement rack to rotate. The casting rotating frame and several placement frames rotate continuously on the heating furnace floor, allowing the castings in the placement frames to fully contact the hot air inside the furnace for heat treatment. This prevents uneven heating of the castings, ensuring the efficiency and effectiveness of the heat treatment. After the heat treatment is complete, the rotating assembly is turned off, and the first and second hooks are separated using tools. The placement frames are then placed onto the casting placement frame, which is then pulled out. After a short time, workers can remove the cooled castings, facilitating their handling and improving both worker efficiency and casting production efficiency.

[0010] The present invention is further configured such that: the rotating assembly includes a rack disposed on the heating furnace, a gear rotatably connected to the heating furnace, and a driving component for driving the rack to slide on the heating furnace, wherein the gear is fixedly connected to the casting rotating frame via a rotating shaft.

[0011] By adopting the above technical solution, the rack can be driven to move back and forth on the heating furnace under the action of the driving component. As the rack moves, it can drive the gear meshing with it to rotate continuously clockwise and counterclockwise on the heating furnace. The gear can then drive the casting rotating frame to rotate on the heating furnace through the rotating shaft. This, in turn, causes the placement frame on the casting rotating frame and the casting to rotate continuously in the heating furnace and come into full contact with the hot air, so that all surfaces of the casting can be exposed to the hot air, ensuring that the heat treatment of the casting is more uniform and sufficient, thereby improving the efficiency and quality of casting production.

[0012] The present invention is further configured such that: a limiting block is provided at one end of the rack near the heating furnace, and a limiting groove is provided on the heating furnace for the limiting block to move.

[0013] By adopting the above technical solution, when the rack slides on the heating furnace under the action of the driving component, the limiting block on the rack will also slide along the inner wall of the limiting groove as the rack moves, thus restricting the trajectory of the rack, ensuring the linear movement of the rack, thereby ensuring the stability of the rack driving the gear and gradually rotating the frame, preventing the casting from falling out of the placement frame, and ensuring the stability and efficiency of the casting heat treatment process.

[0014] The present invention is further configured such that the limiting block is T-shaped.

[0015] By adopting the above technical solution, the rack and the heating furnace will not separate from each other, ensuring the efficiency of the rack's reciprocating movement on the heating furnace.

[0016] The present invention is further configured such that: the driving component includes a cylinder disposed on the heating furnace, and the extended end of the cylinder is fixedly connected to the rack.

[0017] By adopting the above technical solution, the operator drives the rack to reciprocate on the heating furnace by extending and retracting the cylinder. The reciprocating movement of the rack drives the gear meshing with it to rotate continuously clockwise and counterclockwise on the heating furnace. Furthermore, the rotating shaft drives the casting rotating frame, which in turn drives several placement frames and castings to continuously circulate and rotate within the heating furnace. This ensures that the castings are in full contact with the hot air in the heating furnace within the placement frames, guaranteeing uniform heating of the castings within the placement frames and improving the efficiency and effect of the casting heat treatment.

[0018] The present invention is further configured such that: the driving component includes a motor mounted on a heating furnace, a lead screw fixedly connected to the output shaft of the motor, and a nut seat threadedly connected to the lead screw, wherein the end of the nut seat near the rack is fixedly connected to the rack.

[0019] By adopting the above technical solution, the operator turns on the motor to rotate the lead screw, allowing it to rotate within the threaded groove inside the nut seat. This rotation of the lead screw then moves the nut seat and rack, which in turn moves the gear, placement frame, and casting within the heating furnace. Furthermore, a reversing switch drives the motor's output shaft to rotate in both directions, causing the placement frame and casting to continuously rotate clockwise and counterclockwise within the furnace. This ensures the casting makes full contact with the hot air in the furnace, achieving uniform heating, improving the efficiency and effectiveness of the heat treatment, and guaranteeing the casting's performance in subsequent use.

[0020] The present invention is further configured such that several ventilation holes are arranged in an array on several of the placement frames.

[0021] By adopting the above technical solution, the setting of several vent holes can increase the contact area between the placement frame and the hot gas in the heating furnace, so that the hot gas can enter the placement frame through the vent holes and come into contact with the casting to improve the efficiency of casting heat treatment.

[0022] In summary, this utility model has the following beneficial effects: under the action of the rotating component, the casting can be fully heated in the heating furnace before being taken out, thereby ensuring the quality of the casting output and improving the efficiency and effect of the heat treatment of the casting. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present utility model, mainly used to show the structure and positional relationship of the casting placement rack, placement frame, casting rotation rack and rotation assembly arranged in the heating furnace;

[0024] Figure 2 This is a structural schematic diagram of Embodiment 2 of the present invention, mainly used to show the structure and positional relationship of the casting placement rack, placement frame, casting rotation rack and rotation assembly arranged in the heating furnace.

[0025] In the diagram: 1. Heating furnace; 2. Casting placement rack; 3. Placement frame; 4. Vent hole; 5. Cavity; 6. First hook; 7. Second hook; 8. Casting rotation rack; 9. Gear; 10. Rack; 11. Cylinder; 12. Motor; 13. Lead screw; 14. Nut seat. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0027] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "set up / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The present invention will now be described in detail with reference to the accompanying drawings.

[0030] A heat treatment device for shell castings, referring to Figures 1-2 The furnace includes a heating furnace 1, a casting placement rack 2 slidably connected inside the heating furnace 1, a plurality of placement frames 3 are provided on the casting placement rack 2, a plurality of ventilation holes 4 are provided on the plurality of placement frames 3, and a cavity 5 for placing castings is provided inside the plurality of placement frames 3, a first hook 6 is provided in the cavity 5, and a casting rotating rack 8 is provided directly above the casting placement rack 2, and a plurality of second hooks 7 adapted to the first hooks 6 are provided on the casting rotating rack 8.

[0031] The heating furnace 1 is provided with a rotating assembly for driving the casting rotating frame 8 to rotate inside the heating furnace 1. The rotating assembly includes a rack 10 disposed on the heating furnace 1, a gear 9 rotatably connected to the heating furnace 1, and a driving component for driving the rack 10 to slide on the heating furnace 1. The gear 9 is fixedly connected to the casting rotating frame 8 through a rotating shaft.

[0032] A limit block is provided at one end of the rack 10 near the heating furnace 1. The heating furnace 1 has a limit groove for the limit block to move in, and the limit block is T-shaped.

[0033] Working principle: The operator can move the casting placement rack 2 out of the heating furnace 1 via a sliding rail. As the operator moves the casting placement rack 2 out of the furnace 1, the placement frames 3 stacked on it also move out. The operator then places the castings requiring heat treatment into several placement frames 3. With the sliding mechanism, these placement frames 3 move into the heating furnace 1 along with the casting placement rack 2. The operator can then engage the first hook 6 on the placement frame 3 with the second hook 7 on the casting rotation frame 8 to secure the placement frame 3. Finally, the rotating component drives the castings to move... The casting rotating frame 8 and several placement frames 3 rotate continuously in the heating furnace 1, which allows the castings in the placement frames 3 to fully contact the hot air in the heating furnace 1 to achieve the effect of heat treatment. This prevents uneven heating of the castings and ensures the efficiency and effect of the heat treatment. After the heat treatment of the castings is completed, the rotating assembly is turned off. Then, the first hook 6 and the second hook 7 are separated by a tool, and the placement frame 3 is placed on the casting placement frame 2. Finally, the casting placement frame 2 is pulled out. After a while, the workers can take out the cooled castings, which facilitates the handling of the workers and improves the work efficiency of the workers and the efficiency of casting production.

[0034] Under the action of the driving component, the rack 10 can be driven to move back and forth on the heating furnace 1. As the rack 10 moves, it can drive the gear 9 meshing with it to rotate continuously clockwise and counterclockwise on the heating furnace 1. The gear 9 can drive the casting rotating frame 8 to rotate on the heating furnace 1 through the rotating shaft. This causes the placement frame 3 on the casting rotating frame 8 and the casting to rotate continuously in the heating furnace 1 and come into full contact with the hot air, so that all surfaces of the casting can be heated by the hot air, ensuring that the heat treatment of the casting is more uniform and sufficient, thereby improving the efficiency and quality of casting production.

[0035] When the rack 10 slides on the heating furnace 1 under the action of the driving component, the limiting block on the rack 10 also slides along the inner wall of the limiting groove as the rack 10 moves, thus restricting the trajectory of the rack 10 and ensuring the linear movement of the rack 10. This ensures the stability of the rack 10 driving the gear 9 and the gradually rotating frame, preventing the casting from falling out of the placement frame 3, and ensuring the stability and efficiency of the casting heat treatment process.

[0036] Example 1 of the driving component: Refer to Figure 1 The driving component includes a cylinder 11 mounted on the heating furnace 1, with the extended end of the cylinder 11 fixedly connected to the rack 10.

[0037] The operator drives the rack 10 to reciprocate on the heating furnace 1 by extending and retracting the cylinder 11. The reciprocating movement of the rack 10 drives the gear 9 meshing with it to rotate continuously clockwise and counterclockwise on the heating furnace 1. The rotating shaft drives the casting rotating frame 8, which in turn drives several placement frames 3 and the casting to continuously circulate and rotate in the heating furnace 1. This ensures that the casting is in full contact with the hot air in the heating furnace 1 within the placement frames 3, guaranteeing uniform heating of the casting and improving the efficiency and effect of the heat treatment of the casting.

[0038] Example 2 of the driving component: Refer to Figure 2 Compared with Embodiment 1, Embodiment 2 differs in that: the driving component includes a motor 12 mounted on the heating furnace 1, a lead screw 13 fixedly connected to the output shaft of the motor 12, and a nut seat 14 threadedly connected to the lead screw 13. The end of the nut seat 14 near the rack 10 is fixedly connected to the rack 10.

[0039] Working principle: The operator turns on the motor to rotate the lead screw 13, allowing it to rotate within the threaded groove inside the nut seat 14. This rotation of the lead screw 13 then moves the nut seat 14 and the rack 10. The rack 10 then drives the gear 9, the placement frame 3, and the casting to rotate within the heating furnace 1. A reversing switch drives the output shaft of the motor 12 to rotate in both directions, causing the placement frame 3 and the casting to continuously rotate clockwise and counterclockwise within the heating furnace 1. This ensures the casting comes into full contact with the hot air in the furnace 1, achieving uniform heating, improving the efficiency and effectiveness of the heat treatment, and guaranteeing the casting's performance in subsequent use.

[0040] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A heat treatment device for a shell casting, comprising a heating furnace (1), characterized in that: A casting placement rack (2) is slidably connected inside the heating furnace (1). Several placement frames (3) are provided on the casting placement rack (2). The interior of several placement frames (3) is provided with cavities (5) for placing castings. A first hook (6) is provided in the cavity (5). A casting rotation rack (8) is provided directly above the casting placement rack (2). Several second hooks (7) that are adapted to the first hooks (6) are provided on the casting rotation rack (8). A rotating component is provided on the heating furnace (1) for driving the casting rotation rack (8) to rotate inside the heating furnace (1).

2. The heat treatment equipment for a shell casting according to claim 1, characterized in that: The rotating assembly includes a rack (10) mounted on the heating furnace (1), a gear (9) rotatably connected to the heating furnace (1), and a driving component for driving the rack (10) to slide on the heating furnace (1). The gear (9) is fixedly connected to the casting rotating frame (8) via a rotating shaft.

3. The heat treatment equipment for a shell casting according to claim 2, characterized in that: A limiting block is provided at one end of the rack (10) near the heating furnace (1), and a limiting groove is provided on the heating furnace (1) for the limiting block to move.

4. The heat treatment equipment for a shell casting according to claim 3, characterized in that: The limiting block is T-shaped.

5. The heat treatment equipment for a shell casting according to claim 2, characterized in that: The driving component includes a cylinder (11) mounted on the heating furnace (1), and the extended end of the cylinder (11) is fixedly connected to the rack (10).

6. The heat treatment equipment for a shell casting according to claim 2, characterized in that: The driving component includes a motor (12) mounted on the heating furnace (1), a lead screw (13) fixedly connected to the output shaft of the motor (12), and a nut seat (14) threadedly connected to the lead screw (13). The end of the nut seat (14) near the rack (10) is fixedly connected to the rack (10).

7. The heat treatment equipment for a shell casting according to claim 1, characterized in that: Several of the placement frames (3) are provided with several arrayed ventilation holes (4).

Images