Gear quenching flow guide device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU ZHONGLI METAL MFG CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-12
AI Technical Summary
The quenching fluid in traditional gear quenching equipment is not recycled, resulting in resource waste and high costs.
A gear quenching guide device was designed, including a quenching tank, a guide tank, and a driving device. The gear is quenched and cooled by the quenching device and the cooling device, and the quenching liquid is recycled by the driving device. Electromagnetic induction heating and rapid phase change hardening are performed by the quenching coil, and the quenching liquid is sprayed out by the nozzle for cooling. The quenching liquid is recycled by the return pipe and the one-way valve.
This enables the recycling of quenching fluid, reduces resource consumption and costs, and significantly improves the fatigue life and load-bearing capacity of gears.
Smart Images

Figure CN224227144U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of metal heat treatment, specifically relating to a gear quenching guide device. Background Technology
[0002] Gear induction hardening is a key process for improving the hardness and wear resistance of gear surfaces. Its core element is the uniform spraying of the quenching cooling medium (such as water-based polymer solution or oil) onto the gear surface through a flow guiding device (spray ring, quenching nozzle), achieving rapid cooling and hardening. Traditional flow guiding devices typically employ an open, single-pass system. After the quenching liquid is sprayed onto the gear through the nozzle, it flows directly into a drain or waste pool for discharge without recycling. This method is costly and detrimental to resource conservation. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a gear quenching guide device.
[0004] The technical solution adopted to solve the above technical problems is: a gear quenching guide device, including a quenching tank, a guide tank on the right side of the quenching tank, a driving device inside the guide tank, a quenching device on the left side of the quenching tank, a cooling device above the quenching device, a return pipe fixedly connected to the bottom right side of the quenching tank, the return pipe and the guide tank being fixedly connected, and the return pipe passing through the quenching tank and the guide tank, and a one-way valve fixedly connected inside the return pipe.
[0005] Furthermore, a support platform is fixedly connected to the center of the bottom surface inside the quenching tank, an electric telescopic rod is fixedly connected to the center of the top surface of the support platform, a support rod is fixedly connected to the top of the electric telescopic rod, and a gear is provided at the top of the support rod.
[0006] The above solution involves installing a quenching device inside the quenching tank, a cooling device above the quenching device, and a driving device inside the guide tank. The quenching device and the cooling device are used to quench and cool the gears. The combination of the driving device and the guide tank allows for the cooling of the quenching fluid injected into the gears and the recycling of the quenching fluid, thus achieving the recycling of the quenching fluid. This effectively reduces costs and resource consumption.
[0007] Furthermore, the quenching device includes a drive box located on the left side of the quenching tank and fixedly connected to the quenching tank. A quenching coil is fixedly connected to the right side of the drive box and passes through the quenching tank. The quenching coil and the gear are arranged accordingly.
[0008] The above scheme uses a drive box to power the quenching coil, which then quenches the gear. The quenching coil's effect on the gear is essentially electromagnetic induction heating and rapid phase transformation hardening. By precisely controlling the eddy current heating effect and cooling rate, a high-hardness wear-resistant layer is formed on the gear surface while retaining the core toughness, significantly improving the gear's fatigue life and load-bearing capacity.
[0009] Furthermore, the cooling device includes a cooling hood located above the quenching tank. Several nozzles are fixedly connected to the inner side of the cooling hood, and a guide pipe is fixedly connected to the right side of the cooling hood. The guide pipe is fixedly connected to the guide tank and passes through the quenching tank and the guide tank. The guide pipe and the nozzles are correspondingly arranged.
[0010] Furthermore, the driving device includes a drive motor, the output end of which is fixedly connected to a drive gear, a transmission gear meshing with the outside of the drive gear, a threaded rod vertically threaded to the middle of the transmission gear, the threaded rod penetrating the guide tank, and a piston fixedly connected to the bottom end of the threaded rod. The drive motor, drive gear, transmission gear, and piston are all located inside the guide tank.
[0011] The above scheme involves a drive motor that rotates a drive gear, which in turn drives a transmission gear. The rotation of the transmission gear, in conjunction with the threaded rod, drives a piston. The piston's movement compresses the quenching liquid in the guide tank, forcing it through the guide pipe into the cooling hood and out through the nozzle to cool the gear. Once the gear has cooled, the drive motor reverses, causing the piston to move upwards. This creates a negative pressure inside the guide tank, allowing the quenching liquid in the groove to be drawn back into the guide tank through a return pipe at the bottom, thus achieving the recycling of the quenching liquid.
[0012] The beneficial effects of this utility model are as follows:
[0013] This invention provides a quenching device inside a quenching tank, a cooling device above the quenching device, and a driving device inside a flow guide tank. The quenching device and the cooling device are used to quench and cool the gears. The driving device and the flow guide tank work together to cool the gears and recycle the quenching liquid, thus achieving the recycling of the quenching liquid. This can effectively reduce costs and resource consumption. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of a gear quenching guide device according to this utility model;
[0015] Figure 2 This is a front sectional view of a gear quenching guide device according to this utility model;
[0016] Figure 3This is a three-dimensional structural diagram of the cooling device part of a gear quenching flow guiding device according to this utility model;
[0017] Figure 4 This is a three-dimensional structural diagram of the drive device of a gear quenching guide device according to this utility model.
[0018] Reference numerals in the attached drawings: 1. Quenching tank; 2. Flow guide tank; 3. Quenching device; 301. Drive box; 302. Quenching coil; 4. Cooling device; 401. Cooling cover; 402. Nozzle; 403. Flow guide pipe; 5. Drive device; 501. Drive motor; 502. Drive gear; 503. Transmission gear; 504. Threaded rod; 505. Piston; 6. Return pipe; 7. Gear; 8. Support rod; 9. Electric telescopic rod; 10. Support platform; 11. One-way valve. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0020] like Figure 1-4 As shown, a gear quenching guide device in this embodiment includes a quenching tank 1, a guide tank 2 on the right side of the quenching tank 1, a drive device 5 inside the guide tank 2, the drive device 5 including a drive motor 501, a drive gear 502 fixedly connected to the output end of the drive motor 501, a transmission gear 503 meshing with the outside of the drive gear 502, a threaded rod 504 vertically threadedly connected to the middle of the transmission gear 503, the threaded rod 504 penetrating the guide tank 2, and a piston 505 fixedly connected to the bottom end of the threaded rod 504. The drive motor 501, drive gear 502, transmission gear 503 and piston 505 are all located inside the guide tank 2.
[0021] A quenching device 3 is provided on the left side of the quenching tank 1. The quenching device 3 includes a drive box 301, which is located on the left side of the quenching tank 1 and is fixedly connected to the quenching tank 1. A quenching coil 302 is fixedly connected to the right side of the drive box 301 and passes through the quenching tank 1. The quenching coil 302 and the gear 7 are correspondingly arranged. A cooling device 4 is provided above the quenching device 3. The cooling device 4 includes a cooling cover 401, which is located above the quenching tank 1. Several nozzles 402 are fixedly connected to the inner side of the cooling cover 401. The nozzles 402 are used to spray quenching liquid to cool the material 7. A guide pipe 403 is fixedly connected to the right side of the cooling cover 401. The guide pipe 403 is fixedly connected to the guide tank 2 and passes through the quenching tank 1 and the guide tank 2. The guide pipe 403 and the nozzles 402 are correspondingly arranged.
[0022] A return pipe 6 is fixedly connected to the bottom right side of the quenching tank 1. The return pipe 6 is fixedly connected to the guide tank 2, and the return pipe 6 passes through the quenching tank 1 and the guide tank 2. A one-way valve 11 is fixedly connected inside the return pipe 6. The one-way valve 11 is a valve that controls the fluid (liquid or gas) to flow in only one direction and prevents it from flowing in the opposite direction. A support platform 10 is fixedly connected to the middle of the bottom surface inside the quenching tank 1. An electric telescopic rod 9 is fixedly connected to the middle of the top surface of the support platform 10. A support rod 8 is fixedly connected to the top of the electric telescopic rod 9. The support rod 8 is used to support the gear 7 and is the connecting rod between the electric telescopic rod 9 and the gear 7. Its material is steel to avoid the residual heat of the quenching coil 302 from affecting it. The gear 7 is located at the top of the support rod 8.
[0023] The working principle of this embodiment is as follows: When in use, the gear 7 is placed on top of the support rod 8. The electric telescopic rod 9 drives the support rod 8 and the gear 7 to move down, so that the gear 7 moves into the quenching coil 302. The drive box 301 supplies power to the quenching coil 302, and the quenching coil 302 quenches the gear 7. The essence of the quenching of the gear 7 by the quenching coil 302 is electromagnetic induction heating and rapid phase transformation hardening. By precisely controlling the eddy current heating effect and cooling rate, a high-hardness wear-resistant layer is formed on the surface of the gear 7, while retaining the core toughness, which significantly improves the fatigue life and load-bearing capacity of the gear 7.
[0024] After the gear 7 is quenched, the electric telescopic rod 9 drives the support rod 8 and the gear 7 to move upward, so that the gear 7 moves into the cooling hood 401. The drive motor 501 drives the drive gear 502 to rotate, and the drive gear 502 drives the transmission gear 503 to rotate. The rotation of the transmission gear 503 and the interaction with the threaded rod 504 drive the piston 505. The movement of the piston 505 squeezes the quenching liquid in the guide tank 2, so that it flows into the cooling hood 401 through the guide pipe 403 and is sprayed out through the nozzle 402 to cool the gear 7.
[0025] The quenching liquid sprayed from nozzle 402 falls into the quenching tank 1 after the gear 7 is cooled, and gathers in the groove between the support platform 10 and the quenching tank 1. After the gear 7 is cooled, the drive motor 501 reverses and drives the piston 505 to move upward, forming a negative pressure inside the guide tank 2. The quenching liquid in the groove is drawn back into the guide tank 2 through the return pipe 6 set at the bottom of the guide tank 2, realizing the recycling of the quenching liquid. The return pipe 6 is equipped with a one-way valve 11. The one-way valve 11 is a valve that controls the fluid (liquid or gas) to flow in only one direction and prevents it from flowing in the opposite direction.
[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.
Claims
1. A gear quenching flow guiding device, comprising a quenching tank (1), characterized in that: The quenching tank (1) is provided with a flow guide tank (2) on the right side. The flow guide tank (2) is provided with a drive device (5) inside. The quenching tank (1) is provided with a quenching device (3) on the left side. The quenching device (3) is provided with a cooling device (4) above it. The bottom right side of the quenching tank (1) is fixedly connected with a return pipe (6). The return pipe (6) and the flow guide tank (2) are fixedly connected, and the return pipe (6) passes through the quenching tank (1) and the flow guide tank (2). The return pipe (6) is fixedly connected with a one-way valve (11) inside.
2. The gear quenching flow guiding device according to claim 1, characterized in that, A support platform (10) is fixedly connected to the middle of the bottom surface inside the quenching tank (1). An electric telescopic rod (9) is fixedly connected to the middle of the top surface of the support platform (10). A support rod (8) is fixedly connected to the top of the electric telescopic rod (9). A gear (7) is provided on the top of the support rod (8).
3. The gear quenching guide device according to claim 1, characterized in that, The quenching device (3) includes a drive box (301), which is located on the left side of the quenching tank (1) and is fixedly connected to the quenching tank (1). A quenching coil (302) is fixedly connected to the right side of the drive box (301), and the quenching coil (302) passes through the quenching tank (1). The quenching coil (302) and the gear (7) are arranged accordingly.
4. The gear quenching flow guiding device according to claim 1, characterized in that, The cooling device (4) includes a cooling cover (401), which is located above the quenching tank (1). Several nozzles (402) are fixedly connected to the inner side of the cooling cover (401). A guide pipe (403) is fixedly connected to the right side of the cooling cover (401). The guide pipe (403) is fixedly connected to the guide tank (2), and the guide pipe (403) passes through the quenching tank (1) and the guide tank (2). The guide pipe (403) and the nozzles (402) are arranged correspondingly.
5. A gear quenching flow guiding device according to claim 1, characterized in that, The driving device (5) includes a drive motor (501), the output end of which is fixedly connected to a drive gear (502), the drive gear (502) is meshed with a transmission gear (503), the middle of the transmission gear (503) is vertically threaded with a threaded rod (504), the threaded rod (504) passes through the guide tank (2), and the bottom end of the threaded rod (504) is fixedly connected to a piston (505). The drive motor (501), drive gear (502), transmission gear (503) and piston (505) are all located inside the guide tank (2).