Carburizing and quenching equipment for heat treatment of gear

Abstract

The utility model provides gear heat treatment carburizing and quenching equipment which comprises an isolation plate arranged in a processing tank, a heating and quenching tank arranged in the isolation plate, fixing tables symmetrically arranged on the left side and the right side of the heating and quenching tank, a gap reserved between the left fixing table and the right fixing table, and air guide grooves formed in the front and the back of the middle point between the left fixing table and the right fixing table. The air guide grooves are communicated with air guide holes symmetrically formed in the center point of the upper end face of the isolation plate in a front-back mode, a quenching groove is installed below the position between the fixing tables on the left side and the right side, quenching oil liquid is contained in the quenching groove, and electromagnetic heating devices are oppositely arranged on the left fixing table and the right fixing table. Compared with the prior art, the gear heat treatment carburizing and quenching equipment provided by the technical scheme has obvious differences and improvements in structural design and heat treatment process. The following detailed distinguishing points are discussed: in the technical scheme, an isolation plate is arranged in the processing groove.

Description

Technical Field

[0001] The utility model belongs to the field of quenching, and particularly relates to gear heat treatment carburizing and quenching equipment. Background Art

[0002] In the existing machinery manufacturing industry, gears are one of the most common and key transmission components. They are widely used in automobiles, aircraft, mechanical equipment and other equipment. In order to improve the wear resistance, fatigue crack resistance and load-bearing capacity of gears, it is usually necessary to heat treat the gears, and carburizing and quenching is an important heat treatment process to improve the performance of gears. The carburizing and quenching process refers to placing the gears in a carbon-containing medium and keeping them warm at a certain temperature so that carbon atoms penetrate into the surface of the gears, and then quickly cooling the carburized layer through quenching, thereby forming a high-hardness surface and a tougher core.

[0003] Existing gear heat treatment carburizing and quenching equipment has some shortcomings in practical applications. First, traditional carburizing equipment usually uses box furnaces or pit furnaces, which have many inconveniences in operation, such as cumbersome loading and unloading of gears, and difficulty in achieving automated production. Secondly, existing carburizing and quenching equipment is often limited in carburizing efficiency and requires a long carburizing cycle, which reduces production efficiency and increases production costs. In addition, due to the unevenness of the carburizing medium, the thickness and hardness of the carburized layer on the gear surface are sometimes inconsistent, affecting the quality of the final product.

[0004] Temperature control during carburizing and quenching is also a problem. Imprecise temperature control will lead to unstable carburizing effect, thus affecting the performance of the gear. At the same time, the cooling process after carburizing also needs to be precisely controlled. Improper cooling may cause deformation or cracks in the gear, increasing the scrap rate. In addition, due to the use of carburizing media, there are also environmental pollution and operator health risks that need to be considered.

[0005] Existing gear heat treatment carburizing and quenching equipment is also facing the pressure of energy conservation and emission reduction. The traditional heat treatment process has high energy consumption, not only consuming a large amount of electricity or gas, but also releasing gases that are harmful to the environment. There is an urgent need to research and develop more environmentally friendly and efficient equipment. At the same time, as the manufacturing industry develops towards high automation and intelligence, the existing heat treatment equipment is also insufficient in terms of intelligent control and monitoring functions, and cannot meet the needs of intelligent manufacturing.

[0006] Existing gear heat treatment carburizing and quenching equipment has certain limitations and defects in terms of operation convenience, production efficiency, carburizing quality control, temperature control accuracy, environmental protection and intelligent level. Therefore, developing new gear heat treatment carburizing and quenching equipment to solve these problems is an important task to improve gear manufacturing quality and production efficiency, reduce production costs, and promote the sustainable development of the manufacturing industry. Utility Model Content

[0007] The utility model proposes a gear heat treatment carburizing and quenching equipment, which solves the problem of uneven temperature in the carburizing and quenching process of traditional equipment through the design of built-in isolation plate and heating quenching tank, and sets air guide grooves and air guide holes between fixed tables, and improves heating efficiency and quenching quality. The use of electromagnetic heating device also improves energy utilization efficiency, and through the application of quenching oil, optimizes the cooling process and reduces the risk of gear deformation or cracks.

[0008] The technical solution of the utility model is achieved as follows: a gear heat treatment carburizing and quenching equipment, including an isolation plate arranged inside a processing tank, a heating and quenching tank arranged inside the isolation plate, fixed platforms symmetrically arranged on the left and right sides of the heating and quenching tank, a gap left between the left and right fixed platforms, an air guide groove arranged in front and behind the midpoint between the left and right fixed platforms, the air guide groove is connected to the air guide holes symmetrically arranged in front and behind the center point of the upper end surface of the isolation plate, a quenching tank is installed below between the fixed platforms on the left and right sides, quenching oil is built in the quenching tank, and electromagnetic heating devices are arranged opposite to the left and right fixed platforms.

[0009] Compared with the prior art, the gear heat treatment carburizing and quenching equipment proposed in this technical solution has obvious differences and improvements in structural design and heat treatment process. The following is a detailed discussion of the differences: In this technical solution, an isolation plate is provided inside the processing tank, which is an innovative design. In traditional gear carburizing and quenching equipment, the carburizing zone and the quenching zone are often independent of each other, which requires moving the gear from the carburizing zone to the quenching zone after carburizing is completed. This solution integrates the heating and quenching tanks into the same workspace through the provision of isolation plates, which not only saves space, but also reduces the need to move gears during carburizing and quenching, reduces operational complexity, and improves work efficiency.

[0010] Most of the gear heat treatment equipment in the prior art does not have a special air guide structure, which may lead to uneven airflow distribution during heating and affect the heating effect. In this technical solution, the air guide groove is connected to the air guide holes symmetrically arranged at the front and rear center points of the upper end surface of the isolation plate, forming a new type of air guide structure, which helps to achieve uniform airflow distribution during the heating process. Such a design can effectively improve the uniformity of heating, thereby improving the quality of carburizing and quenching. Unlike the traditional heating methods commonly used in the prior art (such as combustion furnaces, resistance heating, etc.), this technical solution adopts an electromagnetic heating device. Electromagnetic heating has the advantages of fast heating speed, high thermal efficiency, easy control and environmental friendliness. This heating method can more accurately control the heating temperature and time, reduce energy loss, and help reduce carbon emissions during operation, which meets the current environmental protection requirements of energy conservation and emission reduction.

[0011] In this solution, the quenching tank is built with quenching oil, which is basically consistent with the practice of using water or oil as a quenching medium in the prior art. However, since the quenching tank is used in conjunction with a fixed table and is arranged adjacent to the heating tank, this layout helps to quickly transition from the heating state to the quenching state, reducing the total time of heat treatment, and is also beneficial to improving the uniformity of quenching and the cooling effect after quenching. In the design of the equipment, fixed tables are symmetrically arranged on the left and right sides of the heating quenching tank, as well as air guide grooves and air guide holes symmetrically arranged between the fixed tables. This symmetrical design is conducive to achieving the stability and balance of the equipment during the heating and quenching process, and avoids the problem of inconsistent heat treatment effects caused by structural asymmetry. Compared with the prior art, this technical solution has significant improvements in improving heat treatment efficiency, heating uniformity, ease of operation, energy saving and environmental protection, thereby optimizing the heat treatment process of the gear and ensuring the quality and performance of the gear product.

[0012] As a preferred embodiment, an inspection port is provided in the middle of the upper end surface of the fixing platform, the cross section of the fixing platform is an "X"-shaped structure, and the fixing platform is fixed on the inner wall end surface of the heating and quenching tank.

[0013] As a preferred embodiment, a power supply motor is arranged inside the fixing platform, and energy is supplied to the electromagnetic heating device through the power supply motor.

[0014] As a preferred embodiment, the air guide grooves are symmetrically arranged in two groups, the two groups of air guide grooves on one side of the fixed platform are connected to the air guide holes on the same side, and the diameter of the air guide holes is 1.5 times the width of the air guide grooves.

[0015] After adopting the above technical scheme, the beneficial effect of the utility model is that by integrating the heating quenching tank and the quenching tank, the number of times the gear is handled during the carburizing and quenching process is reduced, thereby shortening the process time and improving production efficiency. The design of the air guide groove and air guide hole in the equipment helps to achieve uniform distribution of airflow during the heating process, which helps to ensure the heating uniformity of the gear, thereby improving the quality and consistency of the carburized layer. The use of electromagnetic heating devices instead of traditional heating methods can achieve faster heating speeds and higher thermal efficiency, reduce energy consumption, and reduce production costs. The electromagnetic heating device is easy to control and can achieve precise temperature regulation, which is conducive to improving the temperature control accuracy of the carburizing and quenching processes, thereby ensuring the quality of heat treatment. Compared with traditional heating methods, electromagnetic heating has lower carbon emissions and less environmental pollution, which helps enterprises achieve green production and sustainable development. Due to the use of quenching oil and the design of the quenching tank, the cooling process is more uniform and controllable, which helps to reduce the deformation and cracks of the gears during the quenching process and improve the product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a top view of the equipment of the utility model.

[0018] In the figure, 1-processing tank; 2-isolation plate; 3-heating and quenching tank; 4-fixing table; 5-air guide slot; 6-air guide hole; 7-quenching tank; 8-electromagnetic heating device; 9-; 10-; 11-; 12-; 13-. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example:

[0021] like Figure 1 As shown, a gear heat treatment carburizing and quenching equipment includes a processing groove 1 with an isolation plate 2 arranged inside, a heating and quenching groove 3 arranged inside the isolation plate 2, fixed platforms 4 symmetrically arranged on the left and right sides of the heating and quenching groove 3, a gap is left between the left and right fixed platforms 4, an air guide groove 5 is arranged in front and behind the midpoint between the left and right fixed platforms 4, the air guide groove 5 is connected with the air guide holes 6 symmetrically arranged in front and behind the center point of the upper end surface of the isolation plate 2, a quenching groove 7 is installed below between the fixed platforms 4 on both sides, the quenching groove 7 is filled with quenching oil, and electromagnetic heating devices 8 are arranged opposite to the left and right fixed platforms 4.

[0022] The design of this gear heat treatment carburizing and quenching equipment cleverly combines the components of the isolation plate, heating quenching tank, fixed platform, air guide slot, quenching tank and electromagnetic heating device. Its working principle and process reflect the comprehensive consideration of improving efficiency, ensuring quality and energy saving and emission reduction in the gear heat treatment process. The following is a detailed introduction to its working principle, workflow and the difference from the existing technology.

[0023] The gears are heated by two electromagnetic heating devices 8 arranged opposite to each other. Electromagnetic heating uses the principle of electromagnetic induction to generate a rapidly changing magnetic field, causing the metal object (gear) placed therein to generate eddy currents and generate heat, thereby achieving rapid and uniform heating. Compared with traditional heating methods such as flames and resistances, electromagnetic heating is more efficient and can more accurately control the heating temperature and time. Through the design of the air guide grooves 5 and the air guide holes 6, a uniform airflow distribution is formed during the heating process, which helps to achieve uniform heating of the gears. This design helps to avoid local overheating or inadequate heating, and ensures the quality of carburizing and quenching. The heating and quenching tank 3 set in the isolation plate 2 and the quenching tank 7 below realize the spatial integrated layout of the carburizing and quenching processes. The gears complete carburizing and quenching in the same equipment, which reduces intermediate handling, shortens the production cycle, and improves production efficiency.

[0024] The workflow of this application document is:

[0025] Place the gear to be processed on the fixed table 4, start the electromagnetic heating device 8, and through the action of the electromagnetic field, the gear is quickly heated to the temperature required for carburizing. In this process, the air guide groove 5 and the air guide hole 6 play an air guide role to ensure the uniform distribution of the airflow inside the heating quenching tank 3, thereby ensuring the uniformity of gear heating and the quality of carburizing. After reaching the carburizing temperature, maintain it for a certain time to allow carbon atoms to fully penetrate the surface of the gear. Subsequently, turn off the electromagnetic heating device 8, and use the design of the internal structure of the equipment to quickly move the gear into the quenching tank 7 below for rapid cooling. The quenching oil in the quenching tank 7 achieves rapid and uniform cooling of the gear, completing the quenching process, thereby obtaining a high-hardness surface and a core with good toughness.

[0026] In traditional technology, there are various heating methods, but there are generally problems such as low heating efficiency and inaccurate temperature control. This technical solution adopts electromagnetic heating to improve the heating efficiency, and can achieve precise control, ensuring heating uniformity and carburizing quality. In traditional technology, carburizing and quenching processes are usually carried out separately, requiring intermediate transportation, and are inefficient. This solution integrates carburizing and quenching, reduces transportation links, and improves production efficiency. Through structural design, this technical solution fully utilizes the internal space of the equipment, realizes functional integration and compact layout, saves energy and space, and meets the requirements of energy conservation and emission reduction.

[0027] The middle of the upper end face of the fixing platform 4 is provided with an inspection port 41, the cross section of the fixing platform 4 is in a "J" shape, and the fixing platform 4 is fixed on the inner wall end face of the heating and quenching tank 3. In this gear heat treatment carburizing and quenching equipment, the design details of the fixing platform 4 include that the middle of the upper end face is provided with an inspection port 41, the cross section of the fixing platform is in a "J" shape, and the fixing platform is fixed on the inner wall end face of the heating and quenching tank 3. Compared with the prior art, this design shows in-depth consideration of equipment maintenance convenience, thermal efficiency optimization and stability enhancement.

[0028] The provision of the inspection port 41 is an innovation. Traditional fixed table designs often ignore the convenience of maintenance and overhaul, which makes maintenance work complicated and time-consuming when the equipment fails or needs to be cleaned or inspected. By providing the inspection port 41 in the middle of the upper end surface of the fixed table 4, the operator can conveniently perform internal inspection and maintenance, such as cleaning carbon deposits or other residues that may be generated during the heating and quenching of the gears. This not only reduces the downtime of the equipment, but also extends the service life of the equipment and ensures the stability and reliability of the processing process.

[0029] The cross-section of the fixed table 4 is an "J"-shaped structure, which is designed based on thermal efficiency and stability considerations. This "J"-shaped structure is more complex in structure than a conventional right-angle or simple-shaped fixed table, but it can provide better thermal fluidity and heat distribution. During the heating process, this design helps to achieve more uniform heating, prevent local overheating or cooling, and thus improve the quality of carburizing and quenching. In addition, the "J"-shaped structure also physically provides higher stability and load-bearing capacity, ensuring that the fixed table can firmly support the gear during the heating and quenching process, reducing errors caused by equipment vibration or uneven load-bearing.

[0030] The design of fixing the fixing table 4 on the inner wall end face of the heating and quenching tank 3 further enhances the stability of the entire equipment and the consistency of the structure. This installation method ensures that the positional relationship between the fixing table and the heating and quenching tank remains unchanged during the entire heat treatment process, which is conducive to maintaining the consistency of heating and quenching conditions. At the same time, this also simplifies the installation and disassembly process of the fixing table, which is convenient for daily maintenance and long-term use of the equipment.

[0031] An inspection port 41 is provided in the middle of the upper end surface of the fixed platform 4, the cross-section of the fixed platform is in a "J" shape, and the fixed platform is fixed on the end surface of the inner wall of the heating and quenching tank. Compared with the existing technology, these innovations not only improve the operating convenience and maintenance efficiency of the equipment, but also optimize the stability and effect of the heat treatment process, reflecting the comprehensive consideration of efficiency, quality and maintainability in equipment design.

[0032] The fixed table 4 is provided with a power supply motor inside, and the electromagnetic heating device 8 is supplied with energy by the power supply motor. In the conventional gear heat treatment carburizing and quenching equipment, the power supply of the electromagnetic heating device is usually realized by direct connection to an external power supply. Although this design is simple, it has limitations in terms of power wiring, maintenance and equipment mobility. For example, the wiring of the external power line may cause chaos at the production site, increase the difficulty of maintenance and safety risks; at the same time, once the equipment needs to be moved, rewiring will increase the extra workload. In this technical solution, a power supply motor is provided inside the fixed table 4, which means that the power supply mode of the electromagnetic heating device 8 has been innovated. By integrating the power supply motor inside the fixed table, the internal power supply of the electromagnetic heating device can be realized. Such a design has the following significant advantages: the design of the built-in power supply motor reduces the use of external power lines, thereby reducing the safety hazards caused by improper layout of wires, such as tripping hazards, short circuit risks caused by aging or damage of wires, etc. Since the power supply motor and the electromagnetic heating device are integrated in the same fixed table, the equipment does not need to re-wire the complex power line when moving, which greatly improves the mobility and flexibility of the equipment. The internal power supply design simplifies the layout of the power line and makes maintenance work more convenient. The maintenance points of the motor and electromagnetic heating device are concentrated inside the fixed table, which is convenient for quick inspection and troubleshooting. The internal power supply motor may mean better control over the conversion and distribution of electricity, and the power supply can be adjusted according to the real-time needs of the electromagnetic heating device, improving energy efficiency and achieving more precise temperature control. By building the power supply motor into the fixed table 4, the utilization of the internal space of the equipment is optimized, making the entire equipment layout more compact and neat, which helps to improve the overall working performance and reliability of the equipment.

[0033] As a preferred embodiment, the air guide grooves 5 are symmetrically arranged in two groups, and the two groups of air guide grooves 5 on one side of the fixed platform 4 are connected to the air guide holes 6 on the same side, and the diameter of the air guide holes 6 is 1.5 times the width of the air guide grooves 5. In the prior art, the design of the air guide system of the gear heat treatment carburizing and quenching equipment is usually relatively simple, and the uniform distribution of the air flow and the size ratio relationship between the air guide holes and the air guide grooves may not be particularly considered. This may cause uneven gas flow during heating, affecting the heating effect and carburizing quality.

[0034] In this technology, the design of the air guide groove 5 is optimized, which is specifically reflected in the fact that two groups of air guide grooves 5 are symmetrically arranged on the left and right, and the air guide grooves 5 on each side are connected to the air guide holes 6 on the same side. The diameter of the air guide hole 6 is designed to be 1.5 times the width of the air guide groove 5. This design has the following differences and advantages: the two groups of air guide grooves 5 symmetrical on the left and right help to form a uniform air flow distribution inside the heating and quenching tank 3. Uniform airflow helps to ensure that the entire gear is heated evenly, avoid local overheating or insufficient cooling, thereby improving the uniformity of the carburized layer and the quenching effect. The diameter of the air guide hole 6 is set to 1.5 times the width of the air guide groove 5. This size ratio design is conducive to increasing the stability and distribution area of ​​the air flow while maintaining the air flow speed. Larger air guide holes can reduce the resistance of the air flow and improve the efficiency of the air flow, thereby improving the efficiency and consistency of heating. This design can also reduce the thermal stress caused by uneven air flow distribution and avoid deformation of the equipment structure due to temperature differences. This is crucial to improving the durability and reliability of the equipment. Through the precise design of the air guide grooves 5 and the air guide holes 6, the gas flow during the heating process can be better controlled, making the heat treatment process more precise and helping to achieve high-quality heat treatment effects.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gear heat treatment carburizing and quenching equipment, characterized in that: The invention comprises a processing tank (1) having an isolation plate (2) arranged inside, a heating quenching tank (3) arranged inside the isolation plate (2), fixed platforms (4) symmetrically arranged on the left and right sides of the heating quenching tank (3), a gap being left between the left and right fixed platforms (4), an air guide groove (5) being arranged in front and behind the midpoint between the left and right fixed platforms (4), the air guide groove (5) being connected to an air guide hole (6) symmetrically arranged in front and behind the center point of the upper end surface of the isolation plate (2), a quenching tank (7) being installed below between the left and right fixed platforms (4), quenching oil being built in the quenching tank (7), and electromagnetic heating devices (8) being arranged opposite to the left and right fixed platforms (4).

2. The gear heat treatment carburizing and quenching equipment according to claim 1, characterized in that: An inspection port (41) is provided in the middle of the upper end surface of the fixing platform (4). The cross section of the fixing platform (4) is in a "X"-shaped structure. The fixing platform (4) is fixed on the inner wall end surface of the heating and quenching tank (3).

3. The gear heat treatment carburizing and quenching equipment according to claim 1, characterized in that: A power supply motor is arranged inside the fixing platform (4), and energy is supplied to the electromagnetic heating device (8) through the power supply motor.

4. The gear heat treatment carburizing and quenching equipment according to claim 1, characterized in that: The air guide grooves (5) are symmetrically arranged in two groups, and the two groups of air guide grooves (5) on one side of the fixed platform (4) are connected to the air guide holes (6) on the same side, and the diameter of the air guide holes (6) is 1.5 times the width of the air guide grooves (5).

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