A quenching inductor for tooth surface and tooth root processing of a curved gear

Abstract

The utility model belongs to arc gear processing technical field, concretely relates to a quenching inductor for tooth surface and tooth root processing of arc gear, including two metal inductive parts, two metal inductive parts upper end all with the bottom fixed connection of metal induction head, the middle part of metal induction head is equipped with installation groove no. 2, installation groove no. 2 and magnetism guide body three sleeve joint. In the utility model, magnetism guide body one, magnetism guide body two, magnetism guide body three all pass through bolt and main body structure reliable connection, and the assembly is firm, can bear the vibration and thermal stress in quenching process, and this modular design also makes local magnetism guide body can be independently, quickly replaced after wearing or damage, need not scrap the whole inductor, significantly reduces maintenance cost and time, prolongs the service life of equipment.

Description

Technical Field

[0001] This utility model belongs to the field of arc gear processing technology, specifically relating to a quenching inductor for machining the tooth surface and tooth root of arc gears. Background Technology

[0002] In gear manufacturing, induction hardening is an important post-processing step to improve the hardness, wear resistance, and fatigue strength of gear teeth. For curved gears with special arc tooth profiles (such as spiral bevel gears and circular arc gears), the geometry of their tooth surface and root regions is complex, and traditional integral hardening or hardening using general-purpose induction hardeners has obvious limitations.

[0003] In existing technologies, the magnetic conductors in most common quenching inductors are fixed inside the metal inductor head and cannot be disassembled. After long-term use, the magnetic conductors may break or be damaged due to prolonged exposure to high temperatures or collisions with the workpiece during the quenching process. Since the magnetic conductors cannot be disassembled separately, the entire quenching inductor must be scrapped and replaced after the magnetic conductors are damaged, which is costly. Utility Model Content

[0004] The purpose of this invention is to provide a quenching inductor for machining the tooth surface and tooth root of arc gears, which can be replaced independently and quickly without scrapping the entire inductor, significantly reducing maintenance costs and time, and extending the service life of the equipment.

[0005] The specific technical solution adopted by this utility model is as follows: A quenching inductor for machining the tooth surface and tooth root of an arc gear includes two metal inductors and a metal inductor head. The upper ends of the two metal inductors are fixedly connected to the bottom end of the metal inductor head. The metal inductor head has a second mounting groove in the middle, which is sleeved with a third magnetic conductor. The metal inductor head has a first mounting groove on both its left and right sides. The opposite ends of the two first mounting grooves are connected through the second mounting groove. The two first mounting grooves are respectively sleeved with two second magnetic conductors. The left and right sides of the metal induction head overlap with the opposite surfaces of the two magnetic conductors.

[0006] Furthermore, each of the magnetic conductors has two sleeve holes, and the four sleeve holes are respectively connected to one end of four bolts.

[0007] Furthermore, the other end of each of the four bolts is threadedly connected to one of the four screw holes. The four screw holes are arranged in pairs, and the two pairs of screw holes are respectively opened on the left and right sides of the metal induction head. Each bolt head is fitted with a washer, and the washer is placed between the bolt head and the magnetic conductor.

[0008] Furthermore, each of the two magnetic conductors has a countersunk hole in its middle, and the two countersunk holes are respectively connected to the opposite ends of the two bolts.

[0009] Furthermore, the two bolts are threaded to the opposite ends of the two screw holes, which are respectively located on the left and right sides of the magnetic conductor.

[0010] Furthermore, the cross-section of the metal sensor head is triangular, and each of the metal sensors has two mounting holes at its bottom. The bottom of each of the two metal sensors has a liquid inlet and a liquid outlet, respectively. Coolant flow chambers are formed inside the metal sensor head and the two metal sensors. The bottom of the coolant flow chamber inside the metal sensor head is connected to the coolant flow chambers inside the two metal sensors, and the bottom of the coolant flow chambers inside the two metal sensors is connected to the liquid inlet and the liquid outlet, respectively.

[0011] The technical effects achieved by this utility model are as follows: In this invention, magnetic conductor one, magnetic conductor two, and magnetic conductor three are all reliably connected to the main structure by bolts, ensuring a firm assembly that can withstand vibration and thermal stress during the quenching process. This modular design also allows for independent and rapid replacement of individual magnetic conductors after wear or damage, without the need to scrap the entire inductor, significantly reducing maintenance costs and time and extending the service life of the equipment.

[0012] This invention features two magnetic conductors attached to the left and right sides of a metal induction head to enhance the magnetic field strength on the tooth surfaces. Two magnetic conductors are embedded from the sides and work in conjunction with the magnetic conductor in the center of the metal induction head to focus the magnetic field energy on the tooth root, where stress is most concentrated. This multi-magnetic conductor coordinated guidance design effectively solves the problem of insufficient heating in the tooth root area due to its geometric shape, achieving precise energy delivery and efficient utilization.

[0013] This invention designs the metal induction head with a triangular cross-section and cleverly configures magnetic conductor one, magnetic conductor two, and magnetic conductor three, enabling it to be precisely embedded in the gap between the teeth of the arc-shaped gear. This structure allows the effective heating area of ​​the induction sensor to simultaneously cover the tooth root and the left and right tooth surfaces, achieving synchronous and efficient quenching of key areas, ensuring the uniformity and continuity of the quenched layer, and greatly improving the wear resistance and fatigue strength of the gear. Attached Figure Description

[0014] Figure 1 This is a first-view structural schematic diagram of the present invention; Figure 2 This is a second-view structural schematic diagram of the present invention; Figure 3This is an exploded view of the connection structure between the metal induction head and the magnetic conductor 1, magnetic conductor 2, and magnetic conductor 3 in this utility model; Figure 4 This is a third-view structural schematic diagram of the present invention.

[0015] The attached diagram lists the components represented by each number as follows: 1. Metal sensor; 2. Mounting hole; 3. Metal sensor head; 4. Mounting groove one; 5. Magnetic conductor one; 6. Magnetic conductor two; 7. Mounting groove two; 8. Magnetic conductor three; 9. Screw hole one; 10. Washer; 11. Bolt one; 12. Bolt two; 13. Countersunk hole; 14. Screw hole two; 15. Liquid inlet hole; 16. Liquid outlet hole. Detailed Implementation

[0016] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0017] like Figure 1-3 As shown, a quenching inductor for machining the tooth surface and root of an arc gear includes two metal inductors 1 and a metal inductor head 3. The upper ends of the two metal inductors 1 are fixedly connected to the bottom end of the metal inductor head 3. The metal inductor head 3 has a mounting groove 2 7 in the middle, which is sleeved with a magnetic conductor 3 8. The metal inductor head 3 has mounting grooves 1 4 on both sides, and the opposite ends of the two mounting grooves 1 4 are connected through the mounting groove 2 7. The two mounting grooves 1 4 are respectively sleeved with two magnetic conductors 2 6. The magnetic conductors 1 5 guide and concentrate the magnetic field to the two sides of the metal inductor head 3, which efficiently heats the left and right tooth surfaces of the gear that is passing by. The magnetic conductors 2 6 and 3 8 form a combined magnetic circuit, which concentrates a large amount of magnetic field energy in the front sharp corner area of ​​the triangular metal inductor head 3. This area is directly opposite the tooth root, thereby achieving high-intensity and deep induction heating of the tooth root area that is traditionally difficult to heat. The left and right sides of the metal induction head 3 overlap with the opposite surfaces of the two magnetic conductors 5. The main function of the magnetic conductors 5 is to radiate a magnetic field outward to enhance the heating effect on the left and right tooth surfaces of the gear.

[0018] Each magnetic conductor 5 has two sleeve holes, and the four sleeve holes are respectively connected to one end of the four bolts 11.

[0019] The other ends of the four bolts 11 are threaded to the four screw holes 9 respectively. The four screw holes 9 are in pairs and the two sets of screw holes 9 are respectively opened on the left and right sides of the metal induction head 3. Each bolt 11 has a washer 10 on its head. The washer 10 is placed between the head of the bolt 11 and the magnetic conductor 5.

[0020] Both magnetic conductors 6 have countersunk holes 13 in the middle, and the two countersunk holes 13 are respectively connected to the opposite ends of the two bolts 12.

[0021] Two bolts 12 are threaded to two screw holes 14 at opposite ends. The two screw holes 14 are respectively opened on the left and right sides of the magnetic conductor 8. In this device, the magnetic conductors 5, 6, and 8 are reliably connected to the main structure by bolts, and are firmly assembled. They can withstand the vibration and thermal stress during the quenching process. This modular design also allows the local magnetic conductors to be replaced independently and quickly after wear or damage, without scrapping the entire inductor, which significantly reduces maintenance costs and time and extends the service life of the equipment.

[0022] The cross-section of the metal sensing head 3 is triangular. Each metal sensing element 1 has two mounting holes 2 at its bottom. The bottom of the two metal sensing elements is provided with a liquid inlet 15 and a liquid outlet 16, respectively. Coolant flow chambers are provided inside the metal sensing head 3 and the two metal sensing elements 1. The bottom of the coolant flow chamber inside the metal sensing head 3 is connected to the coolant flow chambers inside the two metal sensing elements 1. The bottom of the coolant flow chambers inside the two metal sensing elements 1 is connected to the liquid inlet 15 and the liquid outlet 16, respectively. Both the liquid inlet 15 and the liquid outlet 16 are internally threaded holes. When this device is in use, the liquid inlet 15 and the liquid outlet 16 are connected to the external coolant circulation pipeline. During the quenching process, the coolant circulation pipeline, the liquid inlet 15 and the liquid outlet 16 are used to make the coolant circulate in the coolant flow chamber inside the metal sensing elements 1 and the metal sensing head 3 to cool the sensor itself.

[0023] The working principle of this utility model is as follows: When using this device to perform induction hardening on the tooth surface and tooth root of an arc gear, the metal induction element 1 can be installed and fixed on a CNC hardening machine tool using the mounting hole 2. The inlet hole 15 and outlet hole 16 are both connected to an external coolant circulation pipeline. During the hardening process, the coolant circulation pipeline, inlet hole 15, and outlet hole 16 allow the coolant to circulate within the coolant flow chamber inside the metal induction element 1 and the metal induction head 3 to cool the inductor itself. Then, the workpiece to be hardened is fixed. On the machine tool processing table, using the program control of the CNC quenching machine tool, the device moves along the arc of the circular gear in the gap between the two teeth of the arc gear. During this process, the electromagnetic interference of the magnetic conductor 1 5, magnetic conductor 2 6, and magnetic conductor 3 8 on the corresponding parts of the metal induction head 3 is strengthened to enhance the electromagnetic intensity of the corresponding parts of the metal induction head 3 and the tooth surface and tooth root on the left and right sides, thereby heating the tooth surface and tooth root of the gear. In addition, during the quenching process, the cooling system adapted to the quenching machine tool can be used to spray coolant onto the quenching part of the gear for quenching processing.

[0024] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A quenching inductor for machining the tooth surface and root of arc-shaped gears, comprising two metal inductors (1) and a metal inductor head (3), characterized in that: The upper ends of the two metal sensing elements (1) are fixedly connected to the bottom end of the metal sensing head (3). The metal sensing head (3) has a second mounting groove (7) in the middle. The second mounting groove (7) is sleeved with the third magnetic conductor (8). The metal sensing head (3) has a first mounting groove (4) on both the left and right sides. The opposite ends of the two first mounting grooves (4) are connected through the second mounting groove (7). The two first mounting grooves (4) are respectively sleeved with the two second magnetic conductors (6). The left and right sides of the metal induction head (3) overlap with the opposite surfaces of the two magnetic conductors (5).

2. A quenching inductor for machining the tooth surface and root of an arc-shaped gear according to claim 1, characterized in that: Each of the magnetic conductors (5) has two sleeve holes, and the four sleeve holes are respectively connected to one end of the four bolts (11).

3. A quenching inductor for machining the tooth surface and root of an arc-shaped gear according to claim 2, characterized in that: The other end of each of the four bolts (11) is threaded to one of the four screw holes (9). The four screw holes (9) are in pairs, and the two sets of screw holes (9) are respectively opened on the left and right sides of the metal induction head (3). Each bolt (11) head is fitted with a washer (10), and the washer (10) is placed between the bolt (11) head and the magnetic conductor (5).

4. A quenching inductor for machining the tooth surface and root of an arc-shaped gear according to claim 1, characterized in that: Both of the two magnetic conductors (6) have countersunk holes (13) in the middle, and the two countersunk holes (13) are respectively connected to the opposite ends of the two bolts (12).

5. A quenching inductor for machining the tooth surface and root of an arc-shaped gear according to claim 4, characterized in that: The two bolts (12) are threaded to the opposite ends of the two screw holes (14), which are respectively located on the left and right sides of the magnetic conductor (8).

6. A quenching inductor for machining the tooth surface and root of an arc-shaped gear according to claim 1, characterized in that: The cross-section of the metal sensor head (3) is triangular. Each of the metal sensors (1) has two mounting holes (2) at its bottom. The bottom of the two metal sensors is provided with an inlet hole (15) and an outlet hole (16). The metal sensor head (3) and the two metal sensors (1) are provided with coolant flow chambers. The bottom of the coolant flow chamber inside the metal sensor head (3) is connected to the coolant flow chambers inside the two metal sensors (1). The bottom of the coolant flow chambers inside the two metal sensors (1) is connected to the inlet hole (15) and the outlet hole (16) respectively.

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