A heat treatment apparatus for a forged gear machining

Abstract

The utility model relates to heat treatment equipment technical field, and disclose a kind of heat treatment equipment for forging gear processing, including cooling platform, high-frequency induction heater is placed in the rear end middle place of cooling platform, the front end of high-frequency induction heater is provided with insulating coil, the upper and lower sides of insulating coil are all provided with positioning head, the outside of the positioning head of upper side is fixedly sleeved with bearing in close to upper side, the outside of bearing is fixedly sleeved with lifting plate, the lower end of lifting plate is fixedly connected with connecting frame in the middle of left and right sides, connecting frame is fixedly connected with annular water tank between lower end, the lower end of annular water tank is communicated and fixedly connected with the evenly distributed elbow pipe. The equipment is cooperated by upper and lower two groups of positioning head, realizes the accurate center positioning to gear, improves heat treatment effect, is more safe, while simple and ingenious structure, realizes the linkage of lifting process and induction coil cooling, reduces use cost.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment equipment technology, and in particular to a heat treatment equipment for forging gear processing. Background Technology

[0002] In the field of forged gear processing, heat treatment is a key step in improving gear performance. High-frequency induction hardening equipment is a commonly used device, and its operation directly affects gear quality.

[0003] Currently, some high-frequency induction hardening devices have relatively simple structures. In terms of gear positioning, they lack effective vertical positioning and centering structures, making it difficult for the gears to be precisely positioned in the center of the insulating coil during heating. This can lead to uneven heating, affecting the heat treatment effect and consequently reducing the gears' hardness and wear resistance.

[0004] Meanwhile, the existing device has insufficient safety features when the gears are rotating. There is no reliable shielding or limiting structure at the upper end of the gears. When the gears rotate at high speed under high-frequency induction heating, there is a risk of them being thrown off, which could not only damage the equipment but also pose a safety hazard to the operators.

[0005] In addition, in the cooling process, some devices use the method of lifting and lowering the entire high-frequency quenching mechanism for cooling. This design makes the lifting structure bulky, consumes a lot of energy during operation, increases the cost of equipment use, and is not conducive to energy saving and efficient production. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a heat treatment device for forging gears to solve some of the problems mentioned in the background art.

[0007] This utility model provides the following technical solution: a heat treatment device for forging gears, including a cooling table, a high-frequency induction heater placed at the middle of the rear end of the cooling table, an insulated coil provided at the front end of the high-frequency induction heater, positioning heads provided on both the upper and lower sides of the insulated coil, an adapter seat provided on the lower positioning head, a bearing fixedly sleeved on the outer side of the upper positioning head near the upper side, a lifting plate fixedly sleeved on the outer side of the bearing, a connecting frame fixedly connected at the middle of the left and right sides of the lower end of the lifting plate, an annular water tank fixedly connected between the lower ends of the connecting frames, and a uniformly distributed curved pipe connected and fixedly connected to the lower end of the annular water tank, with a flexible hose fixedly sleeved on the lower end of each curved pipe.

[0008] Furthermore, a sleeve is fixedly installed in the middle of the bottom of the cooling platform. The lower end of the positioning head is slidably connected inside the sleeve. A return spring is installed between the inner bottom of the sleeve and the positioning head. That is, when the upper positioning head rises under the drive of the electric push rod, the lower positioning head will rise and reset under the rebound of the return spring, ready for the next use.

[0009] Furthermore, the front and rear ends of the positioning head on the lower side are fixedly connected with limit blocks at the lower side, and the front and rear ends of the sleeve are provided with limit grooves. The limit blocks pass through and slide inside the limit grooves, ensuring the rationality of the structural design.

[0010] Furthermore, a three-phase motor is fixedly installed at the middle of the upper end of the lifting plate. The output end of the three-phase motor is fixedly connected to the upper positioning head through a coupling, which is used to drive the gear to rotate and improve the uniformity of heating.

[0011] Furthermore, a gantry frame is fixedly installed at the upper end of the cooling platform, and two sets of electric push rods are symmetrically installed at the lower end of the gantry frame. The lower telescopic ends of the electric push rods are fixedly connected to the lifting plate, realizing operations such as positioning and cooling. The structure is simple and reduces the cost of use.

[0012] Furthermore, a coil opening is provided at the middle of the rear end of the annular water tank. The coil opening is compatible with the insulated coil, meaning that the design of the coil opening will not cause structural conflict with the induction coil during the lifting and lowering process of the annular water tank, thus allowing it to rise to the top of the coil for water cooling.

[0013] The advantages of this utility model are as follows:

[0014] 1. This equipment achieves precise centering of the gear through the coordinated action of two sets of positioning heads, both upper and lower. In the subsequent rotation and heating process, the gear is effectively clamped and fixed, and the upper and lower positioning structures form a stable support. This not only improves the heat treatment effect but also prevents the gear from flying off due to centrifugal force during high-speed rotation, ensuring the stability of the equipment operation and reducing the safety risks faced by operators. This provides a reliable safety guarantee for the gear heat treatment process.

[0015] 2. When the electric push rod drives the lifting plate to rise, it simultaneously drives the annular water tank to rise. The cooling water inside the tank flows out naturally through the bend and hose and sprays onto the protective copper pipe on the outside of the insulated coil. This achieves linkage between the lifting process and the cooling of the induction coil. This design eliminates the need for an additional independent cooling drive device. While completing the gear lifting operation, it cleverly achieves the cooling of the induction coil, improves its service life, simplifies the overall structure of the equipment, and helps reduce the operating cost of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial cross-sectional view of the present invention.

[0018] Figure 3 This is a partial structural schematic diagram of the present invention.

[0019] In the diagram: 1. Cooling platform; 2. High-frequency induction heater; 3. Insulated coil; 4. Positioning head; 5. Adapter; 6. Sleeve; 7. Return spring; 8. Limiting block; 9. Limiting groove; 10. Bearing; 11. Lifting plate; 12. Three-phase motor; 13. Gantry frame; 14. Electric push rod; 15. Connecting frame; 16. Annular water tank; 17. Bend; 18. Hose; 19. Coil port. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-3A heat treatment device for forging gears includes a cooling table 1. A high-frequency induction heater 2 is placed at the middle of the rear end of the cooling table 1. An insulated coil 3 is provided at the front end of the high-frequency induction heater 2. Positioning heads 4 are provided on both the upper and lower sides of the insulated coil 3. An adapter seat 5 is provided on the lower positioning head 4. A bearing 10 is fixedly sleeved on the outer side of the upper positioning head 4 near the upper side. A lifting plate 11 is fixedly sleeved on the outer side of the bearing 10. Connecting frames 15 are fixedly connected to the lower ends of the lifting plate 11 at the middle of both the left and right sides. The lower ends of the connecting frames 15 are fixedly connected to each other. An annular water tank 16 has evenly distributed curved pipes 17 connected and fixedly connected to its lower end. Each curved pipe 17 has a flexible hose 18 fixedly fitted to its lower end. The lower positioning head 4 is lifted by the return spring 7 and positioned above the insulating coil 3. The gear is placed on its upper end, and the electric push rod 14 is opened, causing its telescopic end to lower the lifting plate 11. The lowering of the lifting plate 11 lowers the upper positioning head 4. When its head touches the inner ring of the gear, it continues to descend. Since the two sets of positioning heads 4 are on the same vertical line, the gear can be lowered under the action of force. The gear moves to the middle between the two sets of positioning heads 4, where the force is evenly distributed. When the gear is driven down into the interior of the insulating coil 3, it stops. At this point, the gear is centered inside the insulating coil 3 and is in a horizontal state. The three-phase motor 12 is turned on, and its output end drives the upper positioning head 4 to rotate. Due to the pressure and friction between the gear and the positioning head 4, and the adapter seat 5 designed on the lower positioning head 4, the gear will rotate under the drive of the positioning head 4. When the high-frequency induction heater 2 is turned on to supply power to the insulating coil 3, eddy currents are generated in the gear through electromagnetic induction, thereby achieving the purpose of rapid heating. After completion, the gear can be driven down into the cooling water in the cooling platform 1 by the electric push rod 14, thereby achieving the cooling treatment of the gear. Compared with some current high-frequency induction quenching devices, this equipment can position the gear well, placing it in the middle position of the insulating coil 3, and can drive it to rotate, so that it is heated evenly and the heat treatment effect is improved. At the same time, the two sets of positioning heads 4 can achieve the effect of clamping and fixing the gear, avoiding the possibility of it being thrown off during rotation and causing a safety accident.

[0022] Please see Figures 1-3A sleeve 6 is fixedly installed in the middle of the bottom of the cooling platform 1. The lower end of the lower positioning head 4 passes through and slides inside the sleeve 6. A return spring 7 is installed between the inner bottom of the sleeve 6 and the positioning head 4. Limit blocks 8 are fixedly connected to the front and rear ends of the lower positioning head 4 at the lower side. Limit grooves 9 are provided at the front and rear ends of the sleeve 6. The limit blocks 8 pass through and slide inside the limit grooves 9. A three-phase motor 12 is fixedly installed in the middle of the upper end of the lifting plate 11. The output end of the three-phase motor 12 is fixedly connected to the upper positioning head 4 through a coupling. A gantry frame 13 is fixedly installed at the upper end of the cooling platform 1. Two sets of electric push rods 14 are symmetrically installed at the lower end of the gantry frame 13. The telescopic ends of the lower ends of the electric push rods 14 are fixedly connected to the lifting plate 11. Next, a coil port 19 is provided at the middle of the rear end of the annular water tank 16. The coil port 19 is compatible with the insulated coil 3. Furthermore, the interior of the annular water tank 16, which was previously driven down into the cooling water, will be filled with cooling water. When the electric push rod 14 drives the lifting plate 11 to rise, the annular water tank 16 will be driven up synchronously. During the rising process, the cooling water inside will flow down from the hose 18 through the bend pipe 17 and pour onto the insulated coil 3, thereby cooling the protective copper pipe on the outside of the insulated coil 3 to prevent it from scalding the operator. At the same time, it can effectively improve its service life. The structure is simple and ingenious. Compared with some equipment that drives the entire high-frequency quenching mechanism to rise and fall, it can ideally reduce consumption and reduce operating costs.

[0023] Working principle: During use, the lower positioning head 4 is lifted by the return spring 7 and positioned above the insulating coil 3. The gear is placed on its upper end, and the electric push rod 14 is opened to allow its telescopic end to drive the lifting plate 11 to descend. The descent of the lifting plate 11 drives the upper positioning head 4 to descend. When its head touches the inner ring of the gear, it continues to descend. Since the two sets of positioning heads 4 are on the same vertical line, the gear can be moved to the middle between the two sets of positioning heads 4 under the action of force, and the force is evenly distributed. When the gear is driven down into the interior of the insulating coil 3, it stops. At this time, the gear is centered in the middle of the interior of the insulating coil 3 and is in a horizontal state. The three-phase motor 12 is turned on so that its output end drives the upper positioning head 4 to rotate. Due to the certain pressure and friction between the gear and the positioning head 4, and the lower... The positioning head 4 on the side is designed with an adapter seat 5, so the gear will rotate under the drive of the positioning head 4. When the high-frequency induction heater 2 is turned on to supply power to the insulating coil 3, eddy currents are generated in the gear through electromagnetic induction, thereby achieving the purpose of rapid heating. After completion, the gear can be driven to continue to descend into the cooling water in the cooling platform 1 by the electric push rod 14, thereby achieving the cooling treatment of the gear. Furthermore, the annular water tank 16 that was previously driven to descend into the cooling water will be filled with cooling water. When the electric push rod 14 drives the lifting plate 11 to rise, the annular water tank 16 will be driven to rise synchronously. During the rising process, the cooling water inside will flow down from the hose 18 through the bend pipe 17 and pour onto the insulating coil 3, thereby achieving the purpose of cooling the protective copper pipe on the outside of the insulating coil 3.

Claims

1. A heat treatment apparatus for forging gear processing, comprising a cooling table (1), characterized in that: A high-frequency induction heater (2) is placed at the middle of the rear end of the cooling platform (1). An insulated coil (3) is provided at the front end of the high-frequency induction heater (2). A positioning head (4) is provided on both the upper and lower sides of the insulated coil (3). An adapter seat (5) is provided on the lower positioning head (4). A bearing (10) is fixedly sleeved on the outer side of the upper positioning head (4) near the upper side. A lifting plate (11) is fixedly sleeved on the outer side of the bearing (10). A connecting frame (15) is fixedly connected to the lower end of the lifting plate (11) at the middle of both the left and right sides. An annular water tank (16) is fixedly connected between the lower ends of the connecting frame (15). A uniformly distributed bent pipe (17) is connected and fixedly connected to the lower end of the annular water tank (16). A flexible hose (18) is fixedly sleeved on the lower end of each bent pipe (17).

2. The heat treatment equipment for forging gears according to claim 1, characterized in that: A sleeve (6) is fixedly installed in the middle of the bottom of the cooling platform (1). The lower end of the positioning head (4) on the lower side passes through and is slidably connected to the inside of the sleeve (6). A return spring (7) is installed between the inner bottom of the sleeve (6) and the positioning head (4).

3. The heat treatment equipment for forging gears according to claim 2, characterized in that: The front and rear ends of the positioning head (4) on the lower side are fixedly connected to the limiting blocks (8) at the lower side, and the front and rear ends of the sleeve (6) are provided with limiting grooves (9). The limiting blocks (8) pass through and slide inside the limiting grooves (9).

4. The heat treatment equipment for forging gear processing according to claim 1, characterized in that: A three-phase motor (12) is fixedly installed at the middle of the upper end of the lifting plate (11), and the output end of the three-phase motor (12) is fixedly connected to the upper positioning head (4) through a coupling.

5. The heat treatment equipment for forging gears according to claim 1, characterized in that: The upper end of the cooling platform (1) is fixedly installed with a gantry frame (13), and the lower end of the gantry frame (13) is symmetrically installed with two sets of electric push rods (14). The lower telescopic ends of the electric push rods (14) are fixedly connected to the lifting plate (11).

6. The heat treatment equipment for forging gears according to claim 1, characterized in that: A coil port (19) is provided at the middle of the rear end of the annular water tank (16), and the coil port (19) is compatible with the insulated coil (3).

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