Heat treatment equipment for rotary speed reducer gear

Abstract

Heat treatment equipment for a rotary speed reducer gear belongs to the field of rotary speed reducer production and comprises a heat treatment cylinder, an electromagnetic heating mechanism, a cooling mechanism and a rotary gear feeding mechanism, and the electromagnetic heating mechanism, the cooling mechanism and the rotary gear feeding mechanism are arranged in the heat treatment cylinder. The rotary gear feeding mechanism comprises a driving push rod, a rotary driving motor and a clamping jaw, the rotary gear feeding mechanism is arranged in the heat treatment cylinder, the inner side of a rotary gear is clamped outwards through the clamping jaw, the rotary gear is driven by the driving push rod to enter and exit from the heat treatment cylinder, and the rotary gear can enter and exit from the heat treatment cylinder. And meanwhile, a rotating driving motor drives a rotating shaft and a driven rotating shaft to rotate so as to drive a rotary gear to rotate, teeth on the edge of the gear are uniformly and rotationally heated through an electromagnetic heating coil, and the teeth are uniformly and rotationally cooled through a cooling nozzle after being heated, so that it is ensured that martensite structure changes are consistent in the gear quenching process.

Description

Technical Field

[0001] This invention relates to the field of rotary reducer manufacturing technology, specifically to a heat treatment device for rotary reducer gears. Background Technology

[0002] In construction, mining, logistics, and other fields, slewing geared motors are the core transmission components for achieving slewing movements in various heavy machinery. Their performance directly determines the operational accuracy and safety stability of the equipment. For example, during excavator operation, the slewing geared motor drives the upper body to rotate 360°, enabling precise positioning of the bucket and material transfer. When a crane is running, it controls the smooth rotation of the boom slewing mechanism through deceleration and torque amplification, ensuring that heavy objects do not sway or fall during lifting due to excessive speed or insufficient torque. It is a key component for ensuring the efficient and safe operation of heavy machinery. The core transmission component of the rotary reducer is the rotary gear, which requires multiple precision processes in its manufacturing process: First, a gear blank is obtained through forging to ensure a dense internal metal structure; then, rough turning is performed to initially shape the outer circle, end face, and inner hole of the gear; next, a gear hobbing machine is used to precisely mill the gear teeth; after completing the gear tooth profile machining, the gear needs to be carburized to improve the surface hardness and wear resistance; after carburizing, the mechanical properties of the gear need to be further strengthened through a quenching process; finally, a precision grinding process is performed to ensure that the dimensional accuracy and surface finish of the gear meet the usage requirements.

[0003] Existing technologies have significant shortcomings in the quenching process of rotary gears. Due to the large size of rotary reduction gears, with some exceeding 1 meter in diameter and 200 millimeters in thickness, traditional quenching equipment struggles to achieve uniform heating of the gear edges. During heating, varying distances between the gear edges and the heating elements lead to temperature differences, resulting in uneven heating of the edge areas. Similarly, during cooling, uneven contact between the gear edges and the cooling oil causes inconsistent temperature drops. This unstable heating and cooling method results in uneven martensitic structure formed after quenching, with some areas exhibiting insufficient hardness and poor toughness. This affects the service life of the gears and fails to meet the stringent mechanical performance requirements of rotary reducers. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the purpose of the present invention is to provide a heat treatment device for rotary reducer gears, so as to at least partially solve the problems mentioned in the background art.

[0005] Therefore, the purpose of this invention is to provide a heat treatment device for rotary reducer gears, which uniformly heats and cools the rotary gears to ensure consistent martensitic structure changes during gear quenching.

[0006] To achieve the above objectives, the present invention proposes a heat treatment device for a rotary reducer gear, comprising a heat treatment cylinder, and an electromagnetic heating mechanism, a cooling mechanism, and a rotary gear feeding mechanism disposed inside the heat treatment cylinder. The electromagnetic heating mechanism includes an electromagnetic heating coil disposed on the inner wall of the heat treatment cylinder; the cooling mechanism includes cooling nozzles disposed on the inner wall of the heat treatment cylinder; and the rotary gear feeding mechanism includes a drive push rod, a rotary drive motor, and grippers. The drive push rod is disposed on the heat treatment cylinder, and a driven shaft is disposed on the output shaft of the drive push rod. One end of the driven shaft is provided with a rotating shaft, which is connected to the output shaft of the rotary drive motor. The grippers are disposed on the driven shaft.

[0007] Furthermore, an electric clamping rod is provided on the driven rotating shaft, the gripper is located at the end of the output shaft of the electric clamping rod, a spline groove is provided inside the driven rotating shaft, a spline that slides and adapts to the spline groove is provided on the outer surface of the rotating shaft, and a spring is also provided inside the spline groove.

[0008] Furthermore, a stabilizing component is provided on the outside of the driven shaft to stabilize the rotation axis of the driven shaft. The stabilizing component includes a fixed rotating seat, a stabilizing support rod, and a guide slide. The fixed rotating seat is rotatably sleeved on the outside of the driven shaft. Multiple stabilizing support rods are provided and radially inserted outside the fixed rotating seat. A compression spring is provided between the stabilizing support rod and the fixed rotating seat. The guide slide is located at the end of the stabilizing support rod. A guide wheel is provided on the side of the guide slide that contacts the inner wall of the heat treatment cylinder. The inner wall of the heat treatment cylinder is provided with a guide groove that is compatible with the guide wheel.

[0009] Furthermore, a waste heat utilization mechanism is provided between the electromagnetic heating mechanism and the cooling mechanism, including a back suction fan and a release seat. The back suction fan is located outside the heat treatment cylinder, and a back suction hood is provided at the air inlet end of the back suction fan. The back suction hood is located at the top of the heat treatment cylinder and between the electromagnetic heating coil and the cooling nozzle. The release seat is located inside the heat treatment cylinder and at the feed end of the electromagnetic heating mechanism. An air outlet is provided on the release seat. A heating box is provided between the release seat and the back suction fan.

[0010] Furthermore, the heat treatment cylinder is equipped with an inert gas protection mechanism, including an air blowing seat and an inert gas transfer pump. The air blowing seat is located at the release seat and has an air blowing nozzle. The inert gas transfer pump is located outside the heat treatment cylinder and is connected to the air blowing seat by an inert gas transfer pipe.

[0011] Furthermore, an electromagnetic heater is provided on the heat treatment cylinder, the electromagnetic heater is electrically connected to an electromagnetic heating coil, and a heating distance adjustment push rod is provided between the electromagnetic heater and the electromagnetic heating coil.

[0012] Furthermore, an oil pump is provided on the heat treatment cylinder, the oil pump is connected to the cooling nozzle, the cooling nozzle is provided with an atomizing nozzle, an oil drain groove is provided at the bottom of the heat treatment cylinder, the oil drain groove corresponds vertically to the cooling nozzle, and an oil drain pipe is provided at the bottom of the oil drain groove.

[0013] Furthermore, a push seat is provided at the end of the driven shaft opposite to the rotating shaft. The bottom of the push seat is connected to the push rod output shaft of the drive push rod. A rotating seat is provided on the push seat. The rotating seat is rotatably connected to the driven shaft. A brush assembly is provided on the rotating seat. The brush assembly is electrically connected to the electric clamping rod.

[0014] Furthermore, a camera support rod is provided on the push base, and an infrared camera is provided at the end of the camera support rod.

[0015] Furthermore, the inner wall of the heat treatment cylinder is provided with a heat insulation tile layer.

[0016] Beneficial effects: This invention features a rotary gear feeding mechanism inside the heat treatment cylinder. The rotary gear feeding mechanism uses grippers to clamp the inner side of the rotary gear outwards, and a drive push rod to move the rotary gear in and out of the heat treatment cylinder. Simultaneously, during the heat treatment process, a rotary drive motor drives the rotating shaft and driven shaft to rotate, which in turn drives the rotary gear to rotate. While rotating, the rotary gear's edge teeth are uniformly heated by an electromagnetic heating coil. After heating, the edge teeth are uniformly cooled by a cooling nozzle, ensuring consistent martensitic changes during gear quenching.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of a heat treatment apparatus for a rotary reducer gear according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a heat treatment apparatus for a rotary reducer gear according to an embodiment of the present invention from another perspective; Figure 3This is a partial cross-sectional view of a heat treatment apparatus for a rotary reducer gear according to an embodiment of the present invention; Figure 4 This is a partial cross-sectional view of a stabilizing component in a heat treatment apparatus for a rotary reducer gear according to an embodiment of the present invention; Figure 5 This is a partial top sectional view of a heat treatment apparatus for a rotary reducer gear according to an embodiment of the present invention.

[0019] As shown in the figure: 1. Heat treatment cylinder; 11. Insulation tile layer; 2. Waste heat utilization mechanism; 21. Back suction hood; 22. Back suction fan; 23. Heating box; 24. Release seat; 3. Inert gas protection mechanism; 31. Air blowing seat; 32. Air blowing nozzle; 33. Inert gas transmission pipe; 34. Inert gas transmission pump; 4. Rotary gear feeding mechanism; 41. Rotary drive motor; 411. Coupling; 42. Rotary shaft; 43. Driven rotating shaft; 431. Spring; 432. Spline groove; 44. Electric clamping rod; 441. Clamping rod base; 442. Gripper; 45. Rotary seat; 451. Brush assembly; 46. Drive 461. Push rod output shaft; 47. Push seat; 48. Stabilizing component; 481. Guide wheel; 482. Guide slide; 483. Stabilizing support rod; 484. Compression spring; 485. Fixed rotating seat; 486. Guide groove; 5. Electromagnetic heating mechanism; 51. Electromagnetic heater; 52. Heating distance adjustment push rod; 53. Electromagnetic heating coil; 6. Cooling mechanism; 61. Oil pump; 62. Cooling nozzle; 63. Cooling oil inlet connector; 64. Oil drain groove; 65. Oil drain pipe; 7. Infrared camera; 71. Camera support rod; 8. Base bracket; 9. Rotary gear; 91. Gear teeth. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0021] The heat treatment equipment for rotary reducer gears according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0022] like Figures 1-5 As shown, the heat treatment equipment for rotary reducer gears provided in this embodiment of the invention includes a heat treatment cylinder 1, an electromagnetic heating mechanism 5, a cooling mechanism 6 and a rotary gear feeding mechanism 4 disposed inside the heat treatment cylinder 1. The bottom of the heat treatment cylinder 1 is provided with a base support 8. The electromagnetic heating mechanism 5 includes an electromagnetic heating coil 53 disposed on the inner wall of the heat treatment cylinder 1. The cooling mechanism 6 includes a cooling nozzle 62 disposed on the inner wall of the heat treatment cylinder.

[0023] The rotary gear feeding mechanism 4 includes a drive push rod 46, a rotary drive motor 41, and a gripper 442. The drive push rod 46 is mounted on the heat treatment cylinder 1. A driven shaft 43 is mounted on the output shaft of the drive push rod 46. A rotating shaft 42 is mounted on one end of the driven shaft 43. The rotating shaft 42 is connected to the output shaft of the rotary drive motor 41 via a coupling 411. The gripper 442 is mounted on the driven shaft 43.

[0024] Specifically, when using the heat treatment equipment for the rotary reducer gear of this application, the rotary gear 9 is first hoisted to the inlet of the heat treatment cylinder 1, the clamp 442 extends into the inside of the rotary gear 9, and then the rotary gear 9 is clamped from the inside to the outside by the clamp 442 (e.g., Figure 3 As shown), the driven push rod 46 then drives the driven shaft 43 into the heat treatment cylinder 1, which in turn drives the rotary gear 9 into the bottom of the heat treatment cylinder 1. At the same time, the rotary drive motor 41 drives the rotating shaft 42 and the driven shaft 43 to rotate, which in turn drives the rotary gear 9 to rotate.

[0025] Subsequently, the drive push rod 46 drives the rotary gear 9 into the electromagnetic heating coil 53 area. The rotary gear 9 rotates while passing through the electromagnetic heating coil 53. The electromagnetic heating coil 53 uniformly rotates and heats the teeth 91 on the edge of the rotary gear 9. After heating, the drive push rod 46 continues to drive the rotary gear 9 into the cooling nozzle 62 area. Cooling oil is sprayed through the cooling nozzle 62 to uniformly rotate and cool the teeth 91 on the edge of the rotary gear 9, ensuring that the martensitic structure changes uniformly during the gear quenching process.

[0026] In one embodiment of the present invention, such as Figure 3 As shown, an electric clamping rod 44 is provided on the driven rotating shaft 43. The electric clamping rod 44 is fixedly connected to the driven rotating shaft 43 through a clamping rod base 441. The gripper 442 is provided at the end of the output shaft of the electric clamping rod 44. A spline groove 432 is provided inside the driven rotating shaft 43. A spline that slides and adapts to the spline groove 432 is provided on the outer surface of the rotating shaft 42. A spring 431 is also provided inside the spline groove 432.

[0027] A push seat 47 is provided at the end of the driven rotating shaft 43 away from the rotating shaft 42. The bottom of the push seat 47 is connected to the push rod output shaft 461 of the drive push rod 46. A rotating seat 45 is provided on the push seat 47. The rotating seat 45 is rotatably connected to the driven rotating shaft 43. A brush assembly 451 is provided on the rotating seat 45. The brush assembly 451 is electrically connected to the electric clamping rod 44.

[0028] Specifically, the rotary drive motor 41 drives the rotating shaft 42 to rotate. The rotating shaft 42 engages with the spline groove 432 on the inner side of the driven shaft 43 via splines on its surface, thereby driving the driven shaft 43 to rotate as well. Simultaneously, during the rotation of the driven shaft 43, the drive push rod 46 drives the push seat 47 to move left and right via the push rod output shaft 461, which in turn drives the driven shaft 43 to move left and right, and consequently drives the rotary gear 9 at the end of the electric clamping rod 44 to move left and right. At this time, the splines and spline groove 432 ensure that the driven shaft 43 obtains stable rotational kinetic energy from the rotating shaft 42 during its left and right movement.

[0029] As the electric clamping rod 44 rotates, it is electrically connected to the brush assembly 451 at the bottom of the driven shaft 43 via a wire, ensuring stable power transmission during the rotation of the electric clamping rod 44. The spring 431 inside the spline groove 432 reduces the left-right movement of the driven shaft 43 when it enters and exits the heat treatment cylinder 1.

[0030] In one embodiment of the present invention, such as Figure 4 and Figure 5 As shown, a stabilizing component 48 is provided on the outside of the driven shaft 43 to stabilize the rotation axis of the driven shaft 43. The stabilizing component 48 includes a fixed rotating seat 485, a stabilizing support rod 483, and a guide slide 482. The fixed rotating seat 485 is rotatably sleeved on the outside of the driven shaft 43. Multiple stabilizing support rods 483 are provided and are radially inserted on the outside of the fixed rotating seat 485. A compression spring 484 is provided between the stabilizing support rod 483 and the fixed rotating seat 485. The guide slide 482 is provided at the end of the stabilizing support rod 483. A guide wheel 481 is provided on the side of the guide slide 482 that contacts the inner wall of the heat treatment cylinder 1. The inner wall of the heat treatment cylinder 1 is provided with a guide groove 486 that is compatible with the guide wheel 481.

[0031] Specifically, in order to stabilize the rotation axis of the rotary gear 9 during rotation and ensure that the edge of the rotary gear 9 does not undergo eccentric displacement during rotation, the fixed rotating seat 485 is rotatably sleeved on the outside of the driven rotating shaft 43, and multiple stabilizing support rods 483 are radially inserted on the outside of the fixed rotating seat 485. The ends of the stabilizing support rods 483 slide in contact with the guide grooves 486 on the inner wall of the heat treatment cylinder 1 through the guide slide 482 and the guide wheel 481, ensuring that the stabilizing component 48 does not rotate. The stabilizing support rods 483 are stably supported on the inner wall of the heat treatment cylinder 1 by the compression spring 484, so that the fixed rotating seat 485 is stabilized in the central axis position of the heat treatment cylinder 1, thereby stabilizing the rotation axis of the driven rotating shaft 43 and preventing eccentric displacement of the outer circumference when the rotary gear 9 rotates.

[0032] In one embodiment of the present invention, such as Figure 1 and Figure 3As shown, a waste heat utilization mechanism 2 is provided between the electromagnetic heating mechanism 5 and the cooling mechanism 6, including a back suction fan 22 and a release seat 24. The back suction fan 22 is located outside the heat treatment cylinder 1, and a back suction hood 21 is provided at the air inlet end of the back suction fan 22. The back suction hood 21 is located at the top of the heat treatment cylinder 1 and between the electromagnetic heating coil 53 and the cooling nozzle 62. The release seat 24 is located inside the heat treatment cylinder 1 and is located at the feed end of the electromagnetic heating mechanism 5. An air outlet is provided on the release seat 24. A heating box 23 is provided between the release seat 24 and the back suction fan 22.

[0033] Specifically, in order to make full use of the heat generated during the electromagnetic heating process, the hot airflow generated during the heating process of the rotary gear 9 entering the electromagnetic heating coil 53 moves upward and to the right into the suction hood 21. The suction hood 21 transfers the heat to the heating box 23 through the suction fan 22. The heating box 23 further heats the hot airflow. When the airflow reaches a suitable preheating temperature, the hot airflow is output to the release seat 24 and output to the heat treatment cylinder 1 through the air outlet. This is used for preheating before the rotary gear 9 enters the electromagnetic heating coil 53, thereby reducing the power consumption of the electromagnetic heating coil 53.

[0034] In addition, since the back suction shroud 21 is located between the electromagnetic heating coil 53 and the cooling nozzle 62, the hot airflow generated after electromagnetic heating is transferred by the back suction fan 22, reducing the hot airflow entering the cooling nozzle 62, so that the cooling nozzle 62 cools down faster during the cooling of the rotary gear 9.

[0035] In one embodiment of the present invention, such as Figure 2 and Figure 5 As shown, the heat treatment cylinder 1 is equipped with an inert gas protection mechanism 3, which includes an air blowing seat 31 and an inert gas transfer pump 34. The air blowing seat 31 is located at the release seat 24 and has an air blowing nozzle 32. The inert gas transfer pump 34 is located outside the heat treatment cylinder 1 and is connected to the air blowing seat 31 by an inert gas transfer pipe 33.

[0036] Specifically, in order to reduce surface oxidation during the heat treatment of the rotary gear 9, inert protective gas is transferred to the blowing seat 31 by the inert gas transfer pump 34, and the inert gas is blown into the heat treatment cylinder 1 by the blowing seat 31, so that the heat treatment cylinder 1 is filled with inert gas and prevents surface oxidation of the rotary gear 9 during the heating process.

[0037] In one embodiment of the present invention, such as Figure 1 and Figure 5 As shown, an electromagnetic heater 51 is provided on the heat treatment cylinder 1 to generate frequency conversion current. The electromagnetic heater 51 is electrically connected to the electromagnetic heating coil 53, and a heating distance adjustment push rod 52 is provided between the electromagnetic heater 51 and the electromagnetic heating coil 53.

[0038] Specifically, at the point where the edge of the rotary gear 9 enters the electromagnetic heating coil 53, the electromagnetic heater 51 applies a frequency conversion current to the electromagnetic heating coil 53. The edge of the rotary gear 9 is heated by an induced current generated through electromagnetic induction. The distance between the electromagnetic heating coil 53 and the edge of the rotary gear 9 is adjusted by extending and retracting the heating distance adjustment push rod 52. This adjustment is made according to the different diameters of the rotary gear 9 to ensure the optimal heating distance.

[0039] In one embodiment of the present invention, such as Figure 1 and Figure 5 As shown, an oil pump 61 is provided on the heat treatment cylinder 1. The oil pump 61 is connected to the cooling nozzle 62. An atomizing nozzle is provided on the cooling nozzle 62. An oil drain trough 64 is provided at the bottom of the heat treatment cylinder 1. The oil drain trough 64 corresponds to the cooling nozzle 62 vertically. An oil drain pipe 65 is provided at the bottom of the oil drain trough 64.

[0040] Specifically, at the edge of the rotary gear 9 where it enters the cooling nozzle 62, the oil pump 61 receives the cooling oil through the cooling oil inlet connector 63 and sprays the cooling oil through the atomizing nozzle on the cooling nozzle 62. The cooling oil is evenly sprayed onto the edge of the rotating rotary gear 9, so that the edge of the rotary gear 9 is cooled quickly. The cooling oil finally flows into the oil drain trough 64 at the bottom of the heat treatment cylinder 1 for collection and is transferred through the oil drain pipe 65.

[0041] In one embodiment of the present invention, such as Figure 1 and Figure 5 As shown, a camera support rod 71 is provided on the push base 47, and an infrared camera 7 is provided at the end of the camera support rod 71 for real-time monitoring of the temperature change of the edge of the rotary gear 9. The inner wall of the heat treatment cylinder 1 is provided with a heat insulation tile layer 11 for heat insulation and to reduce heat loss inside the heat treatment cylinder 1.

[0042] To clearly illustrate the above embodiments, refer to Figures 1-5 The specific working principle of the heat treatment equipment for rotary reducer gears of the present invention is as follows: When using the heat treatment equipment for rotary reducer gears of this application, the rotary gear 9 is first hoisted to the inlet of the heat treatment cylinder 1, the clamp 442 extends into the inside of the rotary gear 9, and then the clamp 442 clamps the rotary gear 9 from the inside to the outside by extending and retracting the electric clamping rod 44.

[0043] Subsequently, the rotary drive motor 41 drives the rotating shaft 42 to rotate. The rotating shaft 42 engages with the spline groove 432 on the inner side of the driven shaft 43 through the spline on its surface, causing the driven shaft 43 to rotate together. At the same time, during the rotation of the driven shaft 43, the drive push rod 46 drives the push seat 47 to move left and right through the push rod output shaft 461, which in turn drives the driven shaft 43 to move left and right, thereby causing the rotary gear 9 to rotate and move left and right at the same time.

[0044] During the rotation of the driven shaft 43 and the rotary gear 9, multiple stabilizing struts 483 are radially inserted outside the fixed rotating seat 485. The ends of the stabilizing struts 483 slide in contact with the guide grooves 486 on the inner wall of the heat treatment cylinder 1 through the guide slide 482 and the guide wheel 481, ensuring that the stabilizing component 48 does not rotate. The stabilizing struts 483 are stably supported on the inner wall of the heat treatment cylinder 1 by the compression spring 484, so that the fixed rotating seat 485 is stabilized in the central axis position of the heat treatment cylinder 1, thereby stabilizing the rotation axis of the driven shaft 43 and preventing the outer circumference of the rotary gear 9 from eccentrically displacing when it rotates.

[0045] Subsequently, the drive push rod 46 drives the rotary gear 9 into the bottom of the heat treatment cylinder 1 for preheating and inert gas protection. Then, the drive push rod 46 drives the rotary gear 9 to move continuously to the right. The rotary gear 9 then enters the area of ​​the electromagnetic heating coil 53. The rotary gear 9 rotates while passing through the electromagnetic heating coil 53. The electromagnetic heating coil 53 uniformly rotates and heats the teeth 91 on the edge of the rotary gear 9. After heating, the drive push rod 46 continues to drive the rotary gear 9 into the area of ​​the cooling nozzle 62. Cooling oil is sprayed through the cooling nozzle 62 to uniformly rotate and cool the teeth 91 on the edge of the rotary gear 9, ensuring that the martensitic structure changes uniformly during the gear quenching process.

[0046] In summary, the heat treatment equipment for rotary reducer gears in this embodiment of the invention, by setting a rotary gear feeding mechanism inside the heat treatment cylinder, clamps the inner side of the rotary gear outward through the gripper in the rotary gear feeding mechanism, and drives the rotary gear to enter and exit the heat treatment cylinder through the drive push rod. At the same time, during the heat treatment process of the rotary gear, the rotary drive motor drives the rotating shaft and the driven rotating shaft to rotate, thereby driving the rotary gear to rotate. While the rotary gear is rotating, the teeth on its edge are uniformly rotated and heated by the electromagnetic heating coil. After heating, the teeth on its edge are uniformly rotated and cooled by the cooling nozzle, ensuring that the martensitic structure changes uniformly during the gear quenching process.

[0047] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A heat treatment device for rotary reducer gears, characterized in that, It includes a heat treatment cylinder (1), and an electromagnetic heating mechanism (5), a cooling mechanism (6) and a rotary gear feeding mechanism (4) disposed inside the heat treatment cylinder (1). The electromagnetic heating mechanism (5) includes an electromagnetic heating coil (53) disposed on the inner wall of the heat treatment cylinder (1), and the cooling mechanism (6) includes a cooling nozzle (62) disposed on the inner wall of the heat treatment cylinder. The rotary gear feeding mechanism (4) includes a drive push rod (46), a rotary drive motor (41), and a gripper (442). The drive push rod (46) is mounted on the heat treatment cylinder (1). A driven shaft (43) is mounted on the output shaft of the drive push rod (46). A rotating shaft (42) is mounted on one end of the driven shaft (43). The rotating shaft (42) is connected to the output shaft of the rotary drive motor (41). The gripper (442) is mounted on the driven shaft (43).

2. The heat treatment equipment for rotary reducer gears according to claim 1, characterized in that, An electric clamping rod (44) is provided on the driven rotating shaft (43), and the jaw (442) is provided at the end of the output shaft of the electric clamping rod (44). A spline groove (432) is provided inside the driven rotating shaft (43), and a spline that slides and adapts to the spline groove (432) is provided on the outer surface of the rotating shaft (42). A spring (431) is also provided inside the spline groove (432).

3. The heat treatment equipment for rotary reducer gears according to claim 1, characterized in that, A stabilizing component (48) is provided on the outside of the driven shaft (43) to stabilize the rotation axis of the driven shaft (43). The stabilizing component (48) includes a fixed rotating seat (485), a stabilizing support rod (483), and a guide slide (482). The fixed rotating seat (485) is rotatably sleeved on the outside of the driven shaft (43). Multiple stabilizing support rods (483) are provided and are radially inserted on the outside of the fixed rotating seat (485). A compression spring (484) is provided between the stabilizing support rod (483) and the fixed rotating seat (485). The guide slide (482) is provided at the end of the stabilizing support rod (483). A guide wheel (481) is provided on the side of the guide slide (482) that contacts the inner wall of the heat treatment cylinder (1). A guide groove (486) that is compatible with the guide wheel (481) is provided on the inner wall of the heat treatment cylinder (1).

4. The heat treatment equipment for rotary reducer gears according to claim 1, characterized in that, A waste heat utilization mechanism (2) is provided between the electromagnetic heating mechanism (5) and the cooling mechanism (6), including a back suction fan (22) and a release seat (24). The back suction fan (22) is located outside the heat treatment cylinder (1). A back suction hood (21) is provided at the air inlet end of the back suction fan (22). The back suction hood (21) is located at the top of the heat treatment cylinder (1) and between the electromagnetic heating coil (53) and the cooling nozzle (62). The release seat (24) is located inside the heat treatment cylinder (1) and at the feed end of the electromagnetic heating mechanism (5). An air outlet is provided on the release seat (24). A heating box (23) is provided between the release seat (24) and the back suction fan (22).

5. The heat treatment equipment for rotary reducer gears according to claim 4, characterized in that, The heat treatment cylinder (1) is equipped with an inert gas protection mechanism (3), which includes an air blowing seat (31) and an inert gas transfer pump (34). The air blowing seat (31) is located at the release seat (24), and an air blowing nozzle (32) is provided on the air blowing seat (31). The inert gas transfer pump (34) is located outside the heat treatment cylinder (1), and the inert gas transfer pump (34) and the air blowing seat (31) are connected to each other by an inert gas transfer pipe (33).

6. The heat treatment equipment for rotary reducer gears according to claim 1, characterized in that, An electromagnetic heater (51) is provided on the heat treatment cylinder (1). The electromagnetic heater (51) is electrically connected to the electromagnetic heating coil (53). A heating distance adjustment push rod (52) is provided between the electromagnetic heater (51) and the electromagnetic heating coil (53).

7. The heat treatment equipment for rotary reducer gears according to claim 1, characterized in that, An oil pump (61) is provided on the heat treatment cylinder (1). The oil pump (61) is connected to the cooling nozzle (62). An atomizing nozzle is provided on the cooling nozzle (62). An oil drain groove (64) is provided at the bottom of the heat treatment cylinder (1). The oil drain groove (64) corresponds to the cooling nozzle (62) vertically. An oil drain pipe (65) is provided at the bottom of the oil drain groove (64).

8. The heat treatment equipment for rotary reducer gears according to claim 2, characterized in that, The driven shaft (43) is provided with a push seat (47) at one end away from the rotating shaft (42). The bottom of the push seat (47) is connected to the push rod output shaft (461) of the drive push rod (46). A rotating seat (45) is provided on the push seat (47). The rotating seat (45) is rotatably connected to the driven shaft (43). A brush assembly (451) is provided on the rotating seat (45). The brush assembly (451) is electrically connected to the electric clamping rod (44).

9. The heat treatment equipment for rotary reducer gears according to claim 8, characterized in that, The push base (47) is provided with a camera support rod (71), and an infrared camera (7) is provided at the end of the camera support rod (71).

10. The heat treatment equipment for rotary reducer gears according to claim 1, characterized in that, The inner wall of the heat treatment cylinder (1) is provided with a heat insulation tile layer (11).

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