Quenching device for cast gear production

Abstract

The utility model relates to the field of gear production, and discloses a quenching device for cast gear production, which comprises a quenching bath, a bearing table for bearing a gear and a lifting assembly for driving the bearing table to lift are arranged in the quenching bath, a support frame is arranged at the top of the quenching bath, and a rotating frame and an adjusting assembly for adjusting the angle of the rotating frame are arranged at the top of the support frame. A rotating assembly used for driving the bearing table to rotate is arranged on the rotating frame, a heating assembly is arranged on the side, away from the supporting frame, of the top of the quenching pool, the bearing table can penetrate through the heating assembly, and a connecting column capable of penetrating through the gear is arranged at the top of the bearing table. By arranging the bearing table with the connecting columns, the gear to be quenched can be firmly fixed, it can be ensured that the gear is always located at the correct position in the heating and cooling process, and even if the friction force is reduced after the gear makes contact with cooling liquid, the gear can still be firmly fixed to the bearing table; and the falling or deviation phenomenon caused by insufficient friction force is avoided.

Description

Technical Field

[0001] This application relates to the field of gear manufacturing, and in particular to a quenching apparatus for the production of cast gears. Background Technology

[0002] Gears are mechanical components with teeth on their rims that can continuously mesh to transmit motion and power. They are toothed mechanical parts that can mesh with each other. The diameter of a large gear is twice that of a small gear. During the production process, gears need to be quenched to improve their rigidity. Quenching is a metal heat treatment process in which a metal workpiece is heated to a certain appropriate temperature and held for a period of time, and then immersed in a quenching medium for rapid cooling. However, existing quenching equipment heats the rotating teeth or gear shaft separately, which is inefficient, wastes heat energy, and the process from heating to cooling is not continuous, increasing labor and wasting time.

[0003] The existing publication number CN213570601U discloses a quenching device for casting gear production, including a barrel body. A motor is fixedly installed on one side of the barrel body. One end of the motor output shaft is fixedly connected to a rotating shaft through a coupling. One end of the rotating shaft passes through the barrel body and is fixedly installed with a second bevel gear. A lead screw is rotatably installed inside the barrel body through a bearing. A first bevel gear is fixedly installed on the lead screw. The first bevel gear and the second bevel gear are meshed together. A support plate is fixedly connected to one side of the lead screw seat on the lead screw, and a slider is fixedly connected to one side of the support plate. This utility model can simultaneously heat the transmission gear and the inner ring of the gear, saving heat energy and improving work efficiency. It eliminates the need for manual movement of the gear into the coolant. Simply starting the motor moves the gear from the heating mechanism to the cooling mechanism, reducing the workload of workers, shortening working time, and further improving work efficiency.

[0004] In view of the above-mentioned prior art, placing the gear on a support plate and using the lifting and lowering of the support plate to heat the gear before immersing it directly in the coolant for quenching shortens the working time and improves the working efficiency to a certain extent. However, in the above-mentioned prior art, the support plate does not limit the gear during lifting and lowering. The gear is placed on the support plate and relies solely on its own weight and friction with the support plate to maintain its position. When the support plate comes into contact with the coolant, its surface becomes wet, thereby reducing the friction coefficient between the support plate and the gear. Due to the reduction in friction, the adhesion of the gear on the support plate decreases, making the gear prone to falling or shifting during the lifting and lowering process. The falling of the gear will interrupt the quenching process and affect the quenching quality and performance of the gear. The shift of the gear during the rise will deviate from the position of the quenching chamber, thus preventing the smooth quenching process. To solve the above problems, a quenching device for casting gear production is proposed.

[0005] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0006] To solve the problems in gear production, this application provides a quenching apparatus for casting gear production.

[0007] The quenching device for casting gear production provided in this application adopts the following technical solution:

[0008] A quenching apparatus for producing cast gears includes a quenching tank, a support platform for supporting gears and a lifting assembly for driving the support platform to rise and fall, a support frame at the top of the quenching tank, a rotating frame at the top of the support frame and an adjusting assembly for adjusting the angle of the rotating frame, a rotating assembly for driving the support platform to rotate on the rotating frame, a heating assembly at the top of the quenching tank away from the support frame, the support platform passing through the heating assembly, a connecting column at the top of the support platform through which a gear can pass, and the adjusting assembly driving the rotating frame and its rotating assembly to rotate to align with or move away from the support platform.

[0009] Preferably, the heating assembly includes an induction heater and an induction coil. The induction heater is fixed on the top of the quenching tank on the side away from the support frame. The induction coil is fixed on the induction heater and electrically connected to the induction heater. The support platform can pass through the inside of the induction coil.

[0010] Preferably, the lifting assembly includes a lead screw, a first motor, and a sliding frame. Guide grooves are provided on both sides of the inner wall of the quenching pool. The lead screw rotates in the guide groove, and the sliding frame slides in the guide groove. The lead screw and the sliding frame are threadedly connected. The first motor is fixed to the top of the quenching pool. The rotor end of the first motor is fixed to the lead screw. The first motor is located below the support frame.

[0011] Preferably, the rotating assembly includes a cylinder, an external gear ring, a drive gear, a fixed frame, and a second motor. The cylinder and the drive gear both rotate on the top of the rotating frame. The external gear ring is fixed to the cylinder and meshes with the drive gear. The fixed frame is fixed to the top of the rotating frame. The second motor is fixed to the top of the fixed frame. The rotor end of the second motor is fixed to the fixed frame. The telescopic end of the cylinder is engaged with a connecting column spline.

[0012] Preferably, a connecting column is fixed to the top of the support platform, an insert block is fixed to the telescopic end of the cylinder, and a groove is provided on the connecting column to cooperate with the spline of the insert block.

[0013] Preferably, the telescopic end of the cylinder is further fixed with a pressure cylinder, and the insert block is located inside the pressure cylinder.

[0014] Preferably, the adjustment assembly includes an electric actuator, a rack, and a half-inch ring. The electric actuator is fixed to the top of the support frame, the telescopic end of the electric actuator is fixed to the rack, the rack slides on the top of the support frame, the half-inch ring is fixed on the rotating frame, and the rack meshes with the half-inch ring.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] By setting up a support platform with connecting columns, the gear to be quenched can be firmly fixed. Compared with related technologies, it can ensure that the gear is always in the correct position during heating and cooling. Even when the friction decreases after contact with coolant, the gear can still be firmly fixed on the support platform, avoiding falling or shifting due to insufficient friction. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the connection structure between the rotating component and the support platform in an embodiment of the application;

[0018] Figure 2 This is a schematic diagram of the overall structure of the application embodiment. Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the overall structure of the application embodiment. Figure 2 .

[0020] Explanation of reference numerals in the attached drawings: 1. Quenching pool; 2. Guide groove; 3. Lead screw; 4. Motor 1; 5. Sliding frame; 6. Support platform; 7. Connecting column; 8. Support frame; 9. Electric actuator; 10. Rack; 11. Rotating frame; 12. Half-inch ring; 13. Cylinder; 14. External gear ring; 15. Drive gear; 16. Fixed frame; 17. Motor 2; 18. Pressure cylinder; 19. Insert block; 20. Induction heater; 21. Induction coil. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0022] This application discloses a quenching apparatus for producing cast gears. (Refer to...) Figure 1-3A quenching device for casting gear production includes a quenching tank 1 containing a suitable amount of coolant. The quenching tank 1 is equipped with a support platform 6 for supporting gears and a lifting assembly for driving the support platform 6 to rise and fall. The lifting assembly includes a lead screw 3, a motor 4, and a sliding frame 5. Guide grooves 2 are formed on both sides of the inner wall of the quenching tank 1. The lead screw 3 rotates within the guide grooves 2, and the sliding frame 5 slides within the guide grooves 2. The lead screw 3 and the sliding frame 5 are threadedly connected. The motor 4 is fixed to the top of the quenching tank 1, and the rotor end of the motor 4 is fixed to the lead screw 3. 4. Located below the support frame 8, the gear to be quenched is placed on the support platform 6. A heating assembly is provided on the side of the top of the quenching tank 1 away from the support frame 8. The heating assembly includes an induction heater 20 and an induction coil 21. The induction heater 20 is fixed on the side of the top of the quenching tank 1 away from the support frame 8. The induction coil 21 is fixed on the induction heater 20 and electrically connected to the induction heater 20. The support platform 6 can pass through the inside of the induction coil 21. The top of the support platform 6 is provided with a connecting post 7 through which the gear can pass. The connecting post 7 is used to pass through the center hole of the gear to ensure the gear... The gear will not shift during heating and quenching. Even when the friction decreases after contact with the coolant, the gear can maintain good positioning and avoid the risk of falling. The motor 4 is started to rotate the lead screw 3. Under the guidance of the guide groove 2, the sliding frame 5 moves the support platform 6 and the gear to be quenched to the inside of the induction coil 21. The induction heater 20 is started to energize the induction coil 21. Under the action of the alternating magnetic field, eddy currents are generated inside the gear to be quenched, which generates self-heating. This allows for rapid and uniform heating of the gear. Energy is transferred through the magnetic field, and the heating process can be completed without physical contact, reducing heat loss and allowing for precise control of the heating area. After the gear is heated to its austenitizing temperature, the motor 4 is started again to move the support platform 6 and the gear to be quenched to be fully immersed in the coolant and held for a certain period of time for quenching. The rapid conversion between heating and cooling of the gear to be quenched reduces waiting time and improves the overall production rate. At the same time, it also maximizes the preservation of the energy of the gear at high temperature, which is conducive to obtaining better quenching results.

[0023] Reference Figure 1 , 2 The top of the quenching tank 1 is provided with a support frame 8, and the top of the support frame 8 is provided with a rotating frame 11 and an adjustment component for adjusting the angle of the rotating frame 11. The adjustment component includes an electric push rod 9, a rack 10, and a half-inch ring 12. The electric push rod 9 is fixed to the top of the support frame 8, and the telescopic end of the electric push rod 9 is fixed to the rack 10. The rack 10 slides on the top of the support frame 8. The half-inch ring 12 is fixed on the rotating frame 11. The rack 10 and the half-inch ring 12 mesh. Activating the electric push rod 9 causes the gear 10 to drive the half-inch ring 12 and the rotating frame 11 to rotate, thereby adjusting the horizontal angle.

[0024] The rotating frame 11 is equipped with a rotating assembly for driving the support platform 6 to rotate. The rotating assembly includes a cylinder 13, an external gear ring 14, a drive gear 15, a fixed frame 16, and a second motor 17. The cylinder 13 and the drive gear 15 both rotate on the top of the rotating frame 11. The external gear ring 14 is fixed to the cylinder 13 and meshes with the drive gear 15. The fixed frame 16 is fixed to the top of the rotating frame 11, and the second motor 17 is fixed to the top of the fixed frame 16. The rotor end of the second motor 17 is fixed to the fixed frame 16. The telescopic end of the cylinder 13 is fixed with a plug 19. The connecting column 7 has a groove that mates with the spline of the plug 19. When the support platform 6 and the gear to be quenched move to the inside of the induction coil 21, the starting mechanism is activated. The electric actuator 9 causes the rotating frame 11 to rotate, driving the cylinder 13 on it to align with the support platform 6. The cylinder 13 is activated, causing the insert block 19 to engage with the spline of the connecting column 7. The motor 17 is activated, causing the drive gear 15 to drive the external gear ring 14, its cylinder 13, the support platform 6, and the gear to be quenched to rotate. When the gear rotates, its various parts can be evenly exposed to the alternating magnetic field generated by the induction coil 21, ensuring that the entire gear surface is heated uniformly, avoiding local overheating or insufficient heating in certain areas. After heating is completed, the cylinder 13 retracts and disengages from the spline of the connecting column 7. The electric actuator 9 is activated again, causing the rotating frame 11 to drive the cylinder 13 away from the support platform 6, making it easy to replace the new gear to be quenched.

[0025] Reference Figure 1 The telescopic end of the cylinder 13 is also fixed with a pressure cylinder 18, and the insert block 19 is located inside the pressure cylinder 18. When the insert block 19 is engaged with the spline of the connecting column 7, the pressure cylinder 18 abuts against the top of the gear to be quenched, further ensuring the stability of the gear to be quenched.

[0026] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0027] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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.

[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A quenching device for the production of cast gears, comprising a quenching bath (1), characterized in that: The quenching tank (1) is provided with a supporting table (6) for supporting gears and a lifting assembly for driving the supporting table (6) to lift, the top of the quenching tank (1) is provided with a support frame (8), the top of the support frame (8) is provided with a rotating frame (11) and an adjusting assembly for adjusting the angle of the rotating frame (11), the rotating frame (11) is provided with a rotating assembly for driving the supporting table (6) to rotate, the top of the quenching tank (1) away from the side of the support frame (8) is provided with a heating assembly, the supporting table (6) can pass through the heating assembly, the top of the supporting table (6) is provided with a connecting column (7) which can pass through the gears, and the adjusting assembly can drive the rotating frame (11) and the rotating assembly thereon to rotate to align with or away from the supporting table (6).

2. The quenching device for producing a cast gear according to claim 1, characterized by: The heating assembly comprises an induction heater (20) and an induction coil (21), the induction heater (20) is fixed on the side of the top of the quenching tank (1) away from the support frame (8), the induction coil (21) is fixed on the induction heater (20) and electrically connected with the induction heater (20), and the supporting table (6) can pass through the inside of the induction coil (21).

3. The quenching device for producing a cast gear according to claim 1, characterized in that: The lifting assembly comprises a lead screw (3), a motor (4) and a sliding frame (5), the quenching tank (1) is provided with guide grooves (2) on the two sides of the inner wall, the lead screw (3) rotates in the guide grooves (2), the sliding frame (5) slides in the guide grooves (2), the lead screw (3) is threadedly connected with the sliding frame (5), the motor (4) is fixed on the top of the quenching tank (1), the rotor end of the motor (4) is fixed with the lead screw (3), and the motor (4) is located below the support frame (8).

4. The quenching device for producing a cast gear according to claim 1, characterized by: The rotating assembly comprises a pneumatic cylinder (13), an outer gear ring (14), a drive gear (15), a fixing frame (16) and a motor (17), the pneumatic cylinder (13) and the drive gear (15) rotate on the top of the rotating frame (11), the outer gear ring (14) is fixed on the pneumatic cylinder (13), the outer gear ring (14) is engaged with the drive gear (15), the fixing frame (16) is fixed on the top of the rotating frame (11), the motor (17) is fixed on the top of the fixing frame (16), the rotor end of the motor (17) is fixed with the fixing frame (16), and the telescopic end of the pneumatic cylinder (13) is splined with the connecting column (7).

5. The quenching device for producing a cast gear according to claim 4, characterized in that: The telescopic end of the pneumatic cylinder (13) is fixed with an insertion block (19), and the connecting column (7) is provided with a flower groove which is splined with the insertion block (19).

6. The quenching device for producing a cast gear according to claim 5, characterized in that: The telescopic end of the pneumatic cylinder (13) is further fixed with a pressing cylinder (18), and the insertion block (19) is located in the pressing cylinder (18).

7. The quenching apparatus for producing a cast gear according to claim 1, characterized by: The adjusting assembly comprises an electric push rod (9), a rack (10) and a half ruler (12), the electric push rod (9) is fixed on the top of the support frame (8), the telescopic end of the electric push rod (9) is fixed with the rack (10), the rack (10) slides on the top of the support frame (8), the half ruler (12) is fixed on the rotating frame (11), and the rack (10) is engaged with the half ruler (12).

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