A variable pitch and variable trace high uniformity quenching system and method

Abstract

The present invention discloses a variable pitch and variable trace high-uniformity quenching system and method. The device is composed of a liquid supply and circulation device, a multi-ring liquid spraying device, a roller conveyor device, and an enclosed support frame. The liquid supply and circulation device includes a storage pool, a power pump, a liquid collection pool, a main pipeline, a fluid equalizer, an automatic control valve body, a shunt pipe, a return pump, and a return pipe. The multi-ring liquid spraying device includes an intermediate transition pipe, a flow detector, a pressure detector, a multi-zone multi-ring pipeline, and a universal liquid nozzle. The roller conveyor device includes a main body support frame, a conveyor roller rod, a driving motor, and a position sensor. The enclosed support frame is a portal frame structure, which includes a liftable front and rear door and a rotatable maintenance door. The present invention solves the problems of uneven quenching cooling, huge quenching deformation, and uneven product performance of variable pitch and variable trace shell components such as hemispheres and semi-ellipsoids, and realizes high-uniformity and near-zero quenching deformation treatment of variable pitch and variable trace components.

Description

Technical Field

[0001] The present invention relates to the technical field of metal heat treatment equipment, and particularly relates to a variable pitch and variable trace high uniformity quenching system and method. Background Art

[0002] Under the background of heavy load, large thrust and long-range applications, key structural components are developing in the direction of "four modernizations": large size, integral manufacturing, complex structure and lightweight materials. Taking the fuel tank as an example, its manufacturing method has changed from the traditional "block-by-block manufacturing + petal heat treatment + combined welding into an ellipsoid" to "integral multi-pass spinning into an ellipsoid + integral heat treatment". Heat treatment endows materials and components with ultimate properties and is the core process for manufacturing key components. The heat treatment quenching process and device are the guarantee for ensuring the development of key components towards the "four modernizations".

[0003] When using a traditional immersion quenching tank, the quenching deformation of hemispherical / semi-ellipsoidal components is large, resulting in a large amount of subsequent straightening work and even scrapping of the components. The main reasons for the large quenching deformation of hemispherical / semi-ellipsoidal components are as follows: (1) When using the immersion quenching method with the opening facing upwards, the component cannot sink quickly, resulting in uneven cooling of the component and thus large quenching deformation; (2) When using the immersion quenching method with the opening facing downwards, the gas inside the component cannot be discharged smoothly, resulting in the component being unable to sink, causing uneven cooling of the component and thus large quenching deformation; (3) When using the immersion quenching method with the opening inclined, there is a time difference between the beginning and the end of the component contacting the quenching medium, especially for large components, resulting in uneven cooling of the component and thus large quenching deformation. Therefore, the immersion quenching tank cannot meet the quenching requirements of large hemispherical / semi-ellipsoidal variable pitch and variable trace shell components.

[0004] To achieve less or no quenching deformation quenching of specific components, a series of quenching devices have been announced. Chinese Invention (Application No.: 202211141814.8) announced a roll-type gas quenching device suitable for high-strength steel plates with a thickness of 2-4 mm. By closed-loop control to adjust the wind pressure, wind temperature, air volume, plate temperature and conveying speed, problems such as deteriorated plate shape, uneven cooling and poor surface quality during the quenching process of 2-4 mm high-strength steel plates are solved, high-uniformity quenching production is achieved, and the properties and property uniformity of the extremely thin high-strength steel plates after quenching are improved. The quenching cooling medium, quenching cooling object, quenching working method, etc. of this device are very different from those of the present invention.

[0005] Chinese Invention (Application No.: 201910575062.8) discloses a quenching device applicable to continuously and mass-produced components such as aluminum alloy wheels. The nozzles of the bottom spray water pipeline and the side spray water pipeline spray towards the bottom and side of the component respectively, improving the quenching uniformity of the component and solving the problems of quenching deformation and unstable performance of small components such as aluminum alloy wheels. The quenching cooling method, quenching cooling parameters, component size specifications, device structure form, etc. of this device are very different from those of the present invention.

[0006] Chinese Invention (Application No.: 202211253342.5) discloses a quenching device for semiconductor synthesis samples. Under the action of a motor, a sun rotating gear, a planetary rotating gear, and a planetary carrier, the synthesis samples revolve and rotate in the quenching liquid in the quenching liquid tank, realizing precise control quenching and high-uniformity quenching of the synthesis samples and solving the problems of difficult control of the rotation speed and immersion depth and high labor cost existing in the traditional manual quenching method. The quenching cooling method, quenching cooling purpose, sample size specifications, etc. of this device are significantly different from those of this project.

[0007] Chinese Invention (Application No.: 202211369242.9) discloses an anti-deformation device for ring quenching and a processing method for thin-walled components. An axial roller assembly and radial rollers are arranged in the quenching device. During the quenching process, constraints are applied to the quenched ring by the axial rollers and radial rollers arranged in the quenching device, restricting the deformation during the quenching process of the ring and solving the problems such as warping and deformation occurring during the quenching process of the ring. This device prevents deformation during the annular quenching process by applying a binding force to the quenched ring. Its quenching cooling object, deformation control method, component shape size, etc. are significantly different from those of the present invention.

[0008] The quenched component of the present invention is a hemispherical or semi-elliptical spherical shell component with a diameter exceeding 3.5 m and a height exceeding 1.5 m. Since most of the components are hemispherical or semi-elliptical spherical, the distance from the quenching nozzle to the surface of the component and the angle with the tangent of the component surface are different, showing the characteristics of variable distance and variable trace. Using the existing quenching devices cannot meet the requirements of uniform quenching of the above-mentioned hemispherical and semi-elliptical spherical components, resulting in large quenching deformation and even scrapping, which restricts the development process of key components towards the "Four Modernizations" direction.

[0009] Based on the above problems and actual needs, there is an urgent need to design a quenching device that can achieve uniform quenching with variable distance and variable trace for large components. Summary of the Invention

[0010] The present invention provides a variable-distance and variable-trace high-uniformity quenching system and method, solving the problem that the quenched components are scrapped due to large quenching deformation and large quenching distortion in the existing quenching system.

[0011] To solve the above problems, the present invention adopts the following technical solutions:

[0012] The present invention provides a variable pitch and variable trace high uniformity quenching system, which includes a liquid supply circulation device 10, a multi-ring liquid spraying device 20, a roller conveyor device 30 and a closed support frame 40. It is characterized in that: one end of the fluid homogenizer 15 in the liquid supply circulation device 10 is connected to the intermediate transition pipe 21, the multi-zone multi-ring pipeline 24 and the universal liquid nozzle 25 in the multi-ring liquid spraying device 20 in sequence through a shunt pipe 17, wherein the multi-zone multi-ring pipeline 24 and the universal liquid nozzle 25 are arranged inside the closed support frame 40, and the return pipe 19 in the liquid supply circulation device 10 is connected to the bottom of the closed support frame 40; the roller conveyor device 30 passes through the bottom of the closed support frame 40.

[0013] As described above, through the liquid supply circulation device 10, the quenching medium can be recycled. Through the multi-ring liquid spraying device 20, uniform quenching can be achieved. Through the roller conveyor device 30, the heated quenched component can be automatically conveyed into the quenching system for uniform quenching. Through the closed support frame 40, the quenched component can be uniformly quenched in a closed environment, and the quenching medium can also be recovered.

[0014] Optionally, the liquid supply circulation device 10 further includes a storage tank 11 connected to one end of a power pump 12, the other end of the power pump 12 is connected to a liquid collection tank 13, the liquid collection tank 13 is connected to one end of the fluid homogenizer 15 through a main pipeline 14, the other end of the fluid homogenizer 15 is provided with multiple shunt pipes 17, and an automatic control valve body 16 is arranged on each shunt pipe 17. The liquid collection tank at the lower end of the liquid collection tank 13 is connected to the return pipe 19, and the return pipe 19 is connected to the storage tank 11 through a return pump 18; wherein the distance from the automatic control valve body 16 to the front end of the shunt pipe 17 is 5 to 8 times the diameter of the shunt pipe 17, and the distance from the automatic control valve body 16 to the rear end of the shunt pipe 17 is 10 to 15 times the diameter of the shunt pipe 17.

[0015] As described above, the liquid supply circulation device 10 returns the quenching medium to the storage tank 11 through the return pump and the return pipe to realize the recycling of the quenching medium; through the combined design of the main pipeline 14, the fluid homogenizer 15, the automatic control valve body 16 and the shunt pipe 17, the quenching medium that meets the pressure and flow rate is provided for the multi-ring liquid spraying device 20.

[0016] Optionally, the multi-ring liquid spraying device 20 further includes one end of the intermediate transition pipe 21 connected to the shunt pipe 17, the other end of the intermediate transition pipe 21 is connected to one end of the multi-zone multi-ring pipeline 24, a flow detector 22 and a pressure detector 23 are sequentially arranged on the straight pipe of the intermediate transition pipe 21, and the other end of the multi-zone multi-ring pipeline 24 is provided with a plurality of universal liquid nozzles 25. The straight pipe lengths of the intermediate transition pipe 21 from both ends to the flow detector 22 and the pressure detector 23 are 5 to 10 times the diameter of its straight pipe, and the distance between the flow detector 22 and the pressure detector 23 is greater than 200 mm.

[0017] As described above, the flow detector 22 and the pressure detector 23 detect the flow rate / pressure of the quenching medium in the multi-zone and multi-loop pipeline 24, and feedback to control the opening degree of the automatic control valve body 16 in a closed loop, so that the flow rate and pressure of the quenching medium are within the process range.

[0018] Optionally, the roller conveyor device 30 further includes a main body support frame 31 located at the bottom of the closed support frame 40, conveyor roller rods 32 and a position sensor 34 arranged above the main body support frame 31, and a drive motor 33 is electrically connected to the conveyor roller rods 32.

[0019] As described above, the roller conveyor device 30 conveys the component to be quenched to the corresponding position for quenching by receiving corresponding instructions.

[0020] Optionally, the closed support frame 40 further includes a gantry frame structure 41 for the closed support frame 40, liftable front and rear doors 42 are arranged at both ends of the closed support frame 40, and a rotatable maintenance door 43 is arranged at one end inside the closed support frame 40.

[0021] As described above, after receiving the instruction, the liftable front and rear doors 42 open the closed support frame 40 by lifting, so that the component to be quenched enters the inside of the closed support frame 40 under the action of the roller conveyor device 30 for quenching.

[0022] Optionally, the fluid distributor 15 adopts a wedge-shaped box structure. The longitudinal length below the wedge-shaped box structure is 0.6 to 0.8 times the diameter of the component to be quenched, where the diameter of the component to be quenched includes the diameter of the hemispherical component or the semi-ellipsoidal component; the transverse length below the wedge-shaped box structure is 0.4 to 0.6 times the diameter of the component to be quenched; the total height of the box body of the wedge-shaped box structure is 0.5 to 0.6 times the diameter of the component to be quenched, and the height of the straight side of the box body is 0.6 to 0.7 times the total height of the box body.

[0023] As described above, the setting of the wedge-shaped box structure and dimensions of the fluid distributor 15 further avoids the occurrence of water hammer phenomenon of the power pump 12 due to external reasons when providing the quenching medium. The diameter of the semi-ellipsoidal component includes the major axis equatorial diameter and the minor axis equatorial diameter, the long side polar diameter and the short side polar diameter. In particular, the longitudinal length below the wedge-shaped box structure is 0.6 to 0.8 times the diameter of the hemispherical component or the long side polar diameter of the semi-ellipsoidal component; its transverse length below is 0.4 to 0.6 times the diameter of the hemispherical component or the long side polar diameter of the semi-ellipsoidal component, and the total height of the box body is 0.5 to 0.6 times the diameter of the hemispherical component or the major axis equatorial diameter of the semi-ellipsoidal component.

[0024] Optionally, the multi-zone multi-ring pipeline 24 is composed of multiple annular pipelines. Each annular pipeline is arranged in a concentric circle. The distance between every two adjacent concentric circles increases from the inside to the outside by a factor of 1.05 to 1.1, and the distance value is 200 to 600 mm. The line connecting the center of the concentric circle and the center of the quenched component is perpendicular to the concentric circle. A circle of small straight pipes with a length of 5 to 8 times the diameter of the small straight pipe is arranged at the bottom of the annular pipeline. The small straight pipe is generally a 1 / 4-inch pipe. The distance between every two adjacent small straight pipes on every two adjacent annular pipelines decreases from the inside to the outside by a factor of 0.9 to 0.95, and the distance value is 100 to 500 mm. The universal liquid nozzle 25 is connected to the small straight pipe.

[0025] As described above, precisely control the distance between each annular pipeline, the angle between the quenching medium and the contact surface of the quenched component, and the shape of the quenching medium on the contact surface of the quenched component to achieve uniform quenching of the quenched component. The flow rate and pressure of the quenching medium in each annular pipeline are different, and both the flow rate and pressure increase from the inside to the outside. The regulation of the flow rate and pressure is controlled by a flow rate detector, a pressure detector, and an automatic control valve body. Small straight pipes are arranged at intervals on multiple annular pipelines. The small straight pipes are directly connected to the universal liquid nozzles. Multiple universal liquid nozzles spray the quenching medium simultaneously, making the surface of the quenched component uniformly quenched.

[0026] Optionally, the angles of the universal liquid nozzles 25 on the annular pipeline are different. The angle of the universal liquid nozzle 25 satisfies that the line connecting the nozzle orifice and the center of the quenched component is tangent to the surface of the quenched component. The diameter of the liquid droplets sprayed by the universal liquid nozzle 25 is 0.08 mm to 0.2 mm, and the quenching medium sprayed forms a cone and the contact surface with the quenched component is an ellipse.

[0027] As described above, uniform quenching of the quenched component is achieved through different spraying angles of the universal liquid nozzle 25.

[0028] Optionally, the number of the automatic control valve bodies 16 is equal to the number of the shunt pipes 17, and the numbers of the automatic control valve bodies 16 and the shunt pipes 17 are respectively four times the number of the multi-zone multi-ring pipelines 24.

[0029] As described above, the number of the automatic control valve bodies 16 is equal to the number of the shunt pipes 17 and is four times the number of the multi-zone multi-ring pipelines 24. Such a setting can ensure that the flow rate and pressure are consistent when the universal liquid nozzle 25 sprays the quenching medium.

[0030] The present invention also provides a variable pitch and variable trace high-uniformity quenching method, which uses the variable pitch and variable trace high-uniformity quenching system described in any of the above to quench the component to be quenched. The method includes: when the variable pitch and variable trace high-uniformity quenching system receives a signal pre-emitted by the component, the power pump 12 in the liquid supply circulation device 10 is turned on. Under the action of the power pump 12, the quenching medium in the storage tank 11 is transported through the pipeline to the liquid collection tank 13. When the quenching medium in the liquid collection tank 13 flows through the overflow port to the liquid collection tank outside the bottom of the liquid collection tank 13, under the action of the return pump 18, the quenching medium returns to the storage tank 11 through the return pipe 19; when the variable pitch and variable trace high-uniformity quenching system receives a signal emitted by the component, the roller table drive device 30 is turned on, and the roller table drive device 30 transports the heat-treated component to be quenched through the transfer roller rod 32 to the middle of the upper multi-ring liquid spraying device and the lower multi-ring liquid spraying device in the multi-ring liquid spraying device 20; the automatic control valve body 16 in the liquid supply circulation device 10 is opened, and the quenching medium in the liquid collection tank 13 sequentially flows through the main pipeline 14, the flow equalizer 15, the automatic control valve body 16 and the shunt pipe 17 into the intermediate transition pipe 21, the multi-zone multi-ring pipeline 24 and the universal liquid nozzle 25 in the multi-ring liquid spraying device 20, and is sprayed onto the surface of the component to be quenched at a certain angle. At the same time, the flow detector and pressure detector provided on the intermediate transition pipe 21 detect the flow and pressure of the quenching medium, and feedback to closed-loop control the opening of the automatic control valve body; the quenching medium falls from the surface of the component to be quenched to the bottom of the closed support frame 40, and under the action of the return pump 18, returns to the storage tank 11 through the return pipe 19 connected to the bottom of the closed support frame 40; when the variable pitch and variable trace high-uniformity quenching system receives a signal that the component quenching is completed, the power pump 12 stops working, the automatic control valve body 16 is closed, and the component to be quenched is quenched.

[0031] As above, this quenching method uses the variable pitch and variable trace high-uniformity quenching system provided by the present invention, which can not only achieve uniform quenching of the variable pitch and variable trace components to be quenched, but also effectively solve the water hammer phenomenon of pump body liquid supply and the problems of unstable pressure and flow of the quenching medium. At the same time, it also improves the performance and performance uniformity of the components to be quenched. This quenching system controls the flow / pressure of the quenching medium in the multi-zone multi-ring pipeline 24 in the multi-ring liquid spraying device 20, accurately controls the distance of each annular pipeline, the angle between the quenching medium and the contact surface of the component to be quenched, and the shape of the contact surface of the quenching medium on the component to be quenched, so as to achieve uniform quenching of the component to be quenched; this quenching system effectively solves the water hammer phenomenon of the power pump 12 for liquid supply and the problems of unstable pressure and flow of the quenching medium through the effective combination of the liquid collection tank 13 and the flow equalizer 15 with a wedge-shaped box structure, and improves the stability of the quenching medium transmission; the return pump 18 and the return pipe 19 in this quenching system are used to return the quenching medium overflowing from the closed support frame 40 and the liquid collection tank 13 to the storage tank 11 to realize the recycling of the quenching medium.

[0032] In summary, the present invention provides a variable pitch and variable trace high uniformity quenching system and method. In the variable pitch and variable trace high uniformity quenching system of the present invention, by effectively combining multiple technologies such as controlling the flow rate / pressure of the quenching medium in each annular pipeline of the multi-ring liquid spraying device, precisely controlling the distance between each annular pipeline, the angle between the quenching medium and the contact surface of the hemisphere / semi-ellipsoid, and the shape of the contact surface of the quenching medium on the hemisphere / semi-ellipsoid, uniform quenching of the quenched variable pitch and variable trace component is achieved; through the effective combination of the liquid collection pool and the fluid equalizer with a wedge-shaped box structure, the problems of water hammer in the pump body liquid supply and unstable pressure and flow rate of the quenching medium are effectively solved. The diameter of the quenched component processed by the present invention exceeds 3.5 m, and the height exceeds 1.5 m, with a deformation <1 mm / m, reaching the international advanced level; the present invention solves the problem of large deformation of the quenched components of the hemisphere and semi-ellipsoid types caused by the characteristics of variable pitch and variable trace, and at the same time improves the performance and performance uniformity of the quenched components. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The following further describes the various technical features of the present invention and the relationships between them with reference to the drawings. The drawings are exemplary, and some technical features are not shown in actual proportion, and some drawings may omit technical features that are customary in the technical field to which the present invention belongs and are not essential for understanding and implementing the present invention, or may additionally show technical features that are not essential for understanding and implementing the present invention. That is, the combination of the various technical features shown in the drawings is not used to limit the present invention. In addition, throughout the text of the present invention, the content referred to by the same reference numerals is also the same. The specific description of the drawings is as follows:

[0034] FIG. 1 is a schematic structural diagram of a variable pitch and variable trace high uniformity quenching system in the present invention;

[0035] Figure 2 is a structural layout diagram of a multi-zone and multi-ring pipeline in the present invention;

[0036] Figure 3 is a schematic flow diagram of a variable pitch and variable trace high uniformity quenching method in the present invention.

[0037] DESCRIPTION OF REFERENCE NUMERALS

[0038] 01 - Quenched component, 02 - Roller hearth heating furnace, 03 - Variable pitch and variable trace high uniformity quenching system, 04 - Discharge roller table system;

[0039] 10 - Liquid supply circulation device, 11 - Storage pool, 12 - Power pump, 13 - Liquid collection pool, 14 - Main pipeline, 15 - Fluid equalizer, 16 - Automatic control valve body, 17 - Shunt pipe, 18 - Return pump, 19 - Return pipe;

[0040] 20 - Multi - ring liquid spraying device, 21 - Intermediate transition pipe, 22 - Flow detector, 23 - Pressure detector, 24 - Multi - zone multi - ring pipeline, 25 - Universal liquid nozzle;

[0041] 30 - Roller conveyor device, 31 - Main body support frame, 32 - Conveyor roller rod, 33 - Driving motor, 34 - Position sensor;

[0042] 40 - Enclosed support frame, 41 - Gantry frame structure, 42 - Liftable front and rear doors, 43 - Rotatable maintenance door.

[0043] Through the above - mentioned drawings, specific embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0044] Next, with reference to the drawings, the detailed implementation manners of the present invention will be described. Hereinafter, the preferred embodiments of the present application will be elaborated in detail in combination with the drawings, so that the advantages and features of the present application can be more easily understood by those skilled in the art, thereby making the scope of protection of the present application more clearly defined.

[0045] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non - exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, elements defined by the statement "including..." do not exclude the existence of additional identical elements in the process, method, article or device including the said elements.

[0046] Next, with specific embodiments, the technical solutions of the present application and how the technical solutions of the present application solve the above - mentioned technical problems will be described in detail. The specific embodiments mentioned below can be combined with each other to form new embodiments. For the same or similar ideas or processes described in one embodiment, they may not be repeated in some other embodiments. Hereinafter, the embodiments of the present application will be described in combination with the drawings.

[0047] The explanations of variable distance and variable trajectory in the present invention are as follows: Variable distance means that the distance between each universal liquid nozzle 25 and the surface of the hemispherical or semi-elliptical body member is variable; Variable trajectory means that the angle between the spraying direction of each universal liquid nozzle 25 and the normal tangent direction of the surface of the hemispherical or semi-elliptical body member is variable.

[0048]

Embodiment of Variable Distance and Variable Trajectory High Uniformity Quenching System

[0049] Figure 1 shows the structural schematic of the variable distance and variable trajectory high uniformity quenching system in the present invention. As Figures 1a - 1c shown, a variable distance and variable trajectory high uniformity quenching system includes: a liquid supply and circulation device 10, a multi-ring liquid spraying device 20, a roller conveyor device 30, and an enclosed support frame 40. It is characterized in that: one end of the fluid equalizer 15 in the liquid supply and circulation device 10 is sequentially connected to the intermediate transition pipe 21, the multi-zone multi-ring pipeline 24, and the universal liquid nozzle 25 in the multi-ring liquid spraying device 20 through a shunt pipe 17, wherein the multi-zone multi-ring pipeline 24 and the universal liquid nozzle 25 are arranged inside the enclosed support frame 40, and the return pipe 19 in the liquid supply and circulation device 10 is connected to the bottom of the enclosed support frame 40; the roller conveyor device 30 passes through the bottom of the enclosed support frame 40.

[0050] Specifically, the quenching system can realize the recycling of the quenching medium through the liquid supply and circulation device 10, can realize uniform quenching through the multi-ring liquid spraying device 20, can realize the automatic transfer of the heated component to be quenched 01 into the quenching system for uniform quenching through the roller conveyor device 30, and enables the component to be quenched 01 to be uniformly quenched in a closed environment through the enclosed support frame 40, and can also recover the quenching medium.

[0051] Optionally, the liquid supply and circulation device 10 further includes a storage tank 11 connected to one end of a power pump 12, the other end of the power pump 12 is connected to a liquid collection tank 13, the liquid collection tank 13 is connected to one end of the fluid equalizer 15 through a main pipeline 14, the other end of the fluid equalizer 15 is provided with multiple shunt pipes 17, and an automatic control valve body 16 is arranged on each shunt pipe 17. The liquid collection tank at the lower end of the liquid collection tank 13 is connected to the return pipe 19, and the return pipe 19 is connected to the storage tank 11 through a return pump 18; wherein the distance from the automatic control valve body 16 to the front end of the shunt pipe 17 is 5 to 8 times the diameter of the shunt pipe 17, and the distance from the automatic control valve body 16 to the rear end of the shunt pipe 17 is 10 to 15 times the diameter of the shunt pipe 17.

[0052] Specifically, the liquid supply and circulation device 10 returns the quenching medium to the storage tank 11 through the return pump and the return pipe to realize the recycling of the quenching medium; through the combined design of the main pipeline 14, the fluid equalizer 15, the automatic control valve body 16, and the shunt pipe 17, the quenching medium that meets the pressure and flow rate is provided for the multi-ring liquid spraying device 20.

[0053] In a specific embodiment, the liquid supply and circulation device 10 includes a storage tank 11, a power pump 12, a liquid collection tank 13, a main pipeline 14, a fluid equalizer 15, an automatic control valve body 16, a shunt pipe 17, a return pump 18, and a return pipe 19; the liquid supply and circulation device 10 is arranged outside the closed support frame 40; the storage tank 11 is used to store the quenching medium and prepare for quenching; the power pump 12, the liquid collection tank 13, the main pipeline 14, the fluid equalizer 15, the automatic control valve body 16, and the shunt pipe 17 are used to stably and reliably supply the quenching medium to the multi-ring liquid spraying device 20 as required; the return pump 18 and the return pipe 19 are used to return the quenching medium overflowing from inside the closed support frame 40 and the liquid collection tank 13 to the storage tank 11 to realize the recycling of the quenching medium.

[0054] In a specific embodiment, the liquid collection tank 13 is arranged between the power pump 12 and the main pipeline 14, and the water inlet of the main pipeline 14 is on the liquid collection tank 13. Specifically, the height of the water inlet of the main pipeline 14 is 800 - 1500 mm higher than the height of the universal liquid nozzle 25.

[0055] Optionally, the fluid equalizer 15 adopts a wedge-shaped box structure. The longitudinal length below the wedge-shaped box structure is 0.6 - 0.8 times the diameter of the quenched component 01, where the diameter of the quenched component 01 includes the diameter of the hemispherical component or the long-axis equatorial diameter of the semi-ellipsoidal component; the transverse length below the wedge-shaped box structure is 0.4 - 0.6 times the diameter of the quenched component 01; the total height of the box body of the wedge-shaped box structure is 0.5 - 0.6 times the diameter of the quenched component 01, and the height of the straight side of the box body is 0.6 - 0.7 times the total height of the box body.

[0056] Specifically, the setting of the wedge-shaped box structure and dimensions of the fluid equalizer 15 further avoids the occurrence of water hammer phenomenon in the power pump 12 when supplying the quenching medium due to external reasons. The diameter of the semi-ellipsoidal component includes the long-axis equatorial diameter and the short-axis equatorial diameter, the long-side polar diameter and the short-side polar diameter. Specifically, the longitudinal length below the wedge-shaped box structure is 0.6 - 0.8 times the diameter of the hemispherical component or the long-side polar diameter of the semi-ellipsoidal component; its transverse length below is 0.4 - 0.6 times the diameter of the hemispherical component or the long-side polar diameter of the semi-ellipsoidal component, and the total height of the box body is 0.5 - 0.6 times the diameter of the hemispherical component or the long-axis equatorial diameter of the semi-ellipsoidal component.

[0057] It should be noted that the diameter of the semi-ellipsoidal component includes the long-axis equatorial diameter and the short-axis equatorial diameter, the long-side polar diameter and the short-side polar diameter.

[0058] Specifically, the longitudinal length below the wedge-shaped box structure is 0.6 to 0.8 times the diameter of the hemispherical member or the major axis polar diameter of the semi-ellipsoidal member; its transverse length below is 0.4 to 0.6 times the diameter of the hemispherical member or the major axis polar diameter of the semi-ellipsoidal member, and the total height of the box is 0.5 to 0.6 times the diameter of the hemispherical member or the equatorial diameter of the major axis of the semi-ellipsoidal member.

[0059] In a specific embodiment, the fluid equalizer 15 adopts a wedge-shaped box structure. The front end of the fluid equalizer 15 is connected to the main pipeline 14, and the rear end is connected to a number of automatic control valves 16 and the shunt pipe 17. The distance from the automatic control valve 16 to the front end of the shunt pipe 17 is 5 to 8 times the diameter of the shunt pipe, and the distance from the automatic control valve 16 to the rear end of the shunt pipe 17 is 10 to 15 times the diameter of the shunt pipe.

[0060] It should be noted that the power pump 12 is a variable frequency pump, providing a quenching medium pressure of 0.4 to 1.0 MPa and an instantaneous maximum flow rate of 100 m 3 / h.

[0061] Specifically, by designing the liquid collection pool 13, the problem of unstable transmission of the quenching medium caused by the water hammer phenomenon in the traditional pump water supply is solved, and the stability of the quenching medium transmission is improved; through the combined design of the main pipeline 14, the fluid equalizer 15, the automatic control valve 16 and the shunt pipe 17, the quenching medium with sufficient pressure and flow rate is provided for each ring of the multi-ring spraying device 20.

[0062] Optionally, the multi-ring spraying device 20 further includes an intermediate transition pipe 21. One end of the intermediate transition pipe 21 is connected to the shunt pipe 17, and the other end of the intermediate transition pipe 21 is connected to one end of the multi-zone multi-ring pipeline 24. A flow detector 22 and a pressure detector 23 are sequentially arranged on the straight pipe of the intermediate transition pipe 21. The other end of the multi-zone multi-ring pipeline 24 is provided with a plurality of universal liquid nozzles 25. The straight pipe lengths of the two ends of the intermediate transition pipe 21 from the flow detector 22 and the pressure detector 23 are 5 to 10 times the diameter of its straight pipe, and the distance between the flow detector 22 and the pressure detector 23 is greater than 200 mm.

[0063] Specifically, the flow detector 22 and the pressure detector 23 detect the flow rate / pressure of the quenching medium in the multi-zone multi-ring pipeline 24 and feedback to close the loop to control the opening of the automatic control valve 16, so that the flow rate and pressure of the quenching medium are within the process range.

[0064] Specifically, since the multi-ring spraying device 20 includes an upper multi-ring spraying device and a lower multi-ring spraying device which are symmetrically distributed, the multi-zone multi-ring pipeline 24 in the multi-ring spraying device 20 also includes an upper multi-zone multi-ring pipeline and a lower multi-zone multi-ring pipeline, and the upper multi-zone multi-ring pipeline and the lower multi-zone multi-ring pipeline are arranged in a staggered manner.

[0065] In a specific embodiment, the multi-ring liquid spraying device 20 includes an intermediate transition pipe 21, a flow rate detector 22, a pressure detector 23, a multi-zone multi-ring pipeline 24, and a universal liquid nozzle 25; the intermediate transition pipe 21 is arranged outside the closed support frame 40 and is connected to the multi-zone multi-ring pipeline 24 arranged inside the closed support frame 40. A series of universal liquid nozzles 25 are arranged on the multi-zone multi-ring pipeline 24, and the flow rate detector 22 and the pressure detector 23 are arranged on the straight pipe of the intermediate transition pipe 21.

[0066] Optionally, the multi-zone multi-ring pipeline 24 is composed of multiple annular pipelines. Each annular pipeline is arranged in a concentric circle. The distance between every two adjacent concentric circles increases by a factor of 1.05 to 1.1 from the inside to the outside, and the distance value is 200 to 600 mm. The connecting line between the center of the concentric circle and the center of the quenched component 01 is perpendicular to the concentric circle. A small straight pipe with a length of 5 to 8 times the diameter of the small straight pipe is arranged at the bottom of the annular pipeline. The small straight pipe generally uses a 1 / 4-inch pipe. The distance between every two adjacent small straight pipes on every two adjacent annular pipelines decreases by a factor of 0.9 to 0.95 from the inside to the outside, and the distance value is 100 to 500 mm. The universal liquid nozzle 25 is connected to the small straight pipe.

[0067] Specifically, small straight pipes are arranged at intervals on multiple annular pipelines. The small straight pipes are directly connected to the universal liquid nozzles. Multiple universal liquid nozzles spray the quenching medium at the same time, so that the surface of the quenched component 01 is uniformly quenched.

[0068] In a specific embodiment, in Figure 2 In the bottom view of the multi-zone multi-ring pipeline shown, each annular pipeline is arranged in a concentric circle. In the direction of moving from the inside to the outside of the concentric circle, the distance between every two adjacent annular pipelines increases in turn. The increasing ratio of the distance between the current two adjacent concentric circles is 1.05 to 1.1 times the distance between the previous two adjacent concentric circles. Small straight pipes are uniformly arranged on each annular pipeline. In the direction of moving from the inside to the outside of the concentric circle, the decreasing ratio of the distance between a circle of small straight pipes arranged on the current annular pipeline is 0.9 to 0.95 times the distance between a circle of small straight pipes arranged on the previous annular pipeline.

[0069] It should be noted that the flow rate and pressure of the quenching medium in each annular pipeline are different. From the inside to the outside, both the flow rate and pressure increase. The flow rate and pressure are controlled by the closed-loop feedback of the flow rate detector 22, the pressure detector 23, and the automatic control valve body 16.

[0070] Optionally, the angles of the universal liquid nozzles 25 on the annular pipeline are different. The angle of the universal liquid nozzle 25 satisfies that the connecting line between the nozzle orifice and the center of the quenched component 01 is tangent to the surface of the quenched component 01. The diameter of the liquid droplets ejected by the universal liquid nozzle 25 is 0.08 mm to 0.2 mm, and the ejected quenching medium is in a conical shape, and the contact surface with the quenched component 01 is an ellipse.

[0071] Specifically, through the different spraying angles of the universal liquid nozzle 25, uniform quenching of the quenched member 01 is achieved.

[0072] Optionally, the number of self - controlled valve bodies 16 is equal to the number of shunt pipes 17, and the numbers of the self - controlled valve bodies 16 and the shunt pipes 17 are respectively four times the number of the multi - zone multi - loop pipeline 24.

[0073] Specifically, the number of the shunt pipes 17 is equal to the number of the self - controlled valve bodies 16 which is equal to four times the number of the multi - zone multi - loop pipeline 24, which can ensure the consistent flow rate and pressure when the universal liquid nozzle 25 sprays the quenching medium.

[0074] Optionally, the roller - way transmission device 30 further includes a main body support frame 31 located at the bottom of the closed support frame 40, conveying roller rods 32 and a position sensor 34 are arranged above the main body support frame 31, and the driving motor 33 is electrically connected to the conveying roller rods 32.

[0075] Specifically, the roller - way transmission device 30 conveys the quenched member 01 to the corresponding position for quenching by receiving the corresponding instruction.

[0076] In a specific embodiment, the roller - way transmission device 30 is composed of a main body support frame 31, conveying roller rods 32, a driving motor 33, a position sensor 34, etc.; the main body support frame 31, the conveying roller rods 32, and the position sensor 34 of the roller - way transmission device 30 are arranged inside the closed support frame 40, while the driving motor 33 is arranged outside.

[0077] The conveying roller rods 32 are made of heat - resistant stainless steel and adopt the structure of hollow roller rods. The quenched member 01 is placed on the roller - way transmission device 30 during the quenching process.

[0078] Optionally, the closed support frame 40 further includes that the closed support frame 40 is a gantry - type frame structure 41, both ends of the closed support frame 40 are provided with liftable front and rear doors 42, and one end inside the closed support frame 40 is provided with a rotatable maintenance door 43.

[0079] Specifically, after receiving the instruction, the liftable front and rear doors 42 open the closed support frame 40 by lifting, so that the quenched member 01 enters the inside of the closed support frame 40 under the action of the roller - way transmission device 30 for quenching.

[0080] Particularly, the variable - pitch variable - trace high - uniformity quenching system in the present invention is used in combination with the roller - hearth furnace 02.

[0081] In a specific embodiment, when the variable pitch and variable trace high uniformity quenching system of the present invention is operating normally, the power pump 12 pumps the quenching medium in the storage tank 11 through a pipeline into the liquid collecting tank 13. The quenching medium in the liquid collecting tank 13 flows through the main pipeline 14 and is directed towards the wedge-shaped box body. The quenching medium coming out through the fluid homogenizer 15 reaches each shunt pipe 17 through the automatic control valve body 16, and then provides the quenching medium for the multi-ring liquid spraying device 20. The automatic control valve body 16 forms a closed-loop control with the flow detector 22 and the pressure detector 23 in the multi-ring liquid spraying device 20. When not working, the power pump 12 pumps the quenching medium in the storage tank 11 through a pipeline into the liquid collecting tank 13. Since the automatic control valve body 16 is in a closed state at this time, when the quenching medium in the liquid collecting tank 13 reaches the overflow port of the liquid collecting tank 13, the quenching medium automatically overflows from the overflow port and enters the liquid collecting tank. When the detection device in the liquid collecting tank detects the quenching medium, the return pump 18 is automatically turned on, and the overflowing quenching medium is returned to the storage tank 11 through the return pipe 19.

[0082] In a specific embodiment, in combination with Figures 1a - 1c , taking the semi-ellipsoidal bottom member made of 2219 aluminum alloy with the equatorial diameter (the major axis and minor axis of the ellipse) of 5050 mm and 4090 mm respectively, the polar diameter of 3050 mm, and the thickness of 50 mm as an example, the operation process of the variable pitch and variable trace high uniformity quenching system is described.

[0083] In the above specific embodiment, when the semi-ellipsoidal bottom member is heated to 535 °C and held for 2.5 h in the roller hearth furnace 02, the roller hearth furnace 02 sends a signal of preparing to output the member to the variable pitch and variable trace high uniformity quenching system 03 30 minutes in advance. At this time, the power pump 12 pumps the quenching medium in the storage tank 11 through a pipeline into the liquid collecting tank 13, and the excess quenching medium flows through the overflow port to the bottom liquid collecting tank of the liquid collecting tank 13. When the semi-ellipsoidal bottom member is held for 3 h, the roller hearth furnace 02 sends a signal of equipping to output the member to the variable pitch and variable trace high uniformity quenching system 03. At this time, the front door of the feed port of the variable pitch and variable trace high uniformity quenching system 03 is opened, the roller conveyor device is started, and the conveying roller rod 32 rotates at the process requirement speed (the roller speed is 25 m / min, and the acceleration is 0.001 m / s 2 ), the automatic control valve body 16 is opened, the quenching medium in the liquid collecting tank 13 enters the upper / lower multi-ring liquid spraying device through the main pipeline 14, the wedge-shaped fluid homogenizer 15, and the shunt pipe 17, and finally sprays out from the universal liquid nozzle 25. At the same time, the flow detector 22 and the pressure detector 23 detect the flow rate and pressure of the quenching medium, and feedback to close-loop control the opening degree of the automatic control valve body 16 so that the flow rate and pressure of the quenching medium are within the process range {the flow rate of the innermost ring (the 1st ring) from the inside to the outside is 4.5 m 3 / h and its pressure is 0.5 MPa, and the flow rate of the outermost ring (the 9th ring) is 5.5 m 3 / h and its pressure is 0.75MPa}, the roller bottom heating furnace 02 starts the rollers and opens the furnace door, after the semi-ellipsoidal bottom component is sent to the specified position by the rollers and roller transmission device 30 of the roller bottom heating furnace 02, the position sensor detects the semi-ellipsoidal bottom component and the rollers stop rotating, the quenching medium sprayed by the universal liquid nozzle 25 is sprayed to the semi-ellipsoidal bottom component, and the semi-ellipsoidal bottom component is quenched and cooled to below 80°C, the power pump 12 stops, and the automatic control valve body 16 is closed, so far, the quenching of the semi-ellipsoidal bottom component is completed; after quenching, the material is 2219 aluminum alloy, the equatorial diameters are 5050mm and 4090mm respectively, the polar diameter is 3050mm, and the thickness is 50mm. The deformation of the semi-ellipsoidal bottom component is within the range of 1mm / m, achieving quenching with little or no deformation.

[0084] It should be noted that when the detection device in the liquid collecting tank detects the quenching medium, the reflux pump 18 will automatically start to pump the quenching medium in the liquid collecting tank back into the storage tank 11; at the same time, when the detection device in the closed support frame 40 detects the quenching medium, the reflux pump 18 will also automatically start to pump the quenching medium in the closed support frame 40 back into the storage tank 11.

[0085] When the semi-ellipsoidal bottom component has completed quenching, the roller transmission device 30 and the unloading roller system 04 are automatically started, and the semi-ellipsoidal bottom component is transferred to the unloading roller and transferred to the next process.

[0086] The quenching system is composed of a liquid supply circulation device 10, a multi-ring liquid spraying device 20, a roller transmission device 30, and a closed support frame 40. The liquid supply circulation device 10 includes: a storage tank 11, a power pump 12, a liquid collecting tank 13, a main pipeline 14, a uniform fluid 15, an automatic valve body 16, a diverter pipe 17, a reflux pump 18, and a reflux pipe 19; the multi-ring spray device 20 includes: an intermediate transition pipe 21, a flow detector 22, a pressure detector 23, a multi-zone multi-ring pipeline 24, and a universal liquid nozzle 25; the liquid supply circulation device 10 realizes that the quenching medium stably and reliably provides the quenching medium to the multi-ring spray device 20 as required by designing the liquid collecting tank 13, the uniform fluid 15, and the diverter pipe 17; the multi-ring spray device 20 controls the flow and pressure of the quenching medium in a closed loop of zones and rings, and the universal liquid nozzle 25 adjusts the direction of the quenching medium; combined with the speed control and precise positioning of the roller transmission device 30, high uniformity quenching of hemispherical and semi-ellipsoidal variable pitch and track shell components is realized. The present invention solves the problems of uneven quenching cooling, huge quenching deformation, and uneven product performance of hemispherical and hemi-ellipsoidal variable pitch and trace shell components, and achieves high uniformity and near-zero quenching deformation processing of variable pitch and trace components.

[0087] [Implementation example of variable pitch and variable track high uniformity quenching method]

[0088] Figure 3 The process diagram of the variable pitch and variable track high uniformity quenching method is shown, such asFigure 3 As shown in the figure, the present application provides a variable pitch and variable trace high-uniformity quenching method, which uses the variable pitch and variable trace high-uniformity quenching system described in any one of the above in the present invention to quench the quenched component 01, including the following steps:

[0089] S31: When the variable pitch and variable trace high-uniformity quenching system receives the signal pre-emitted by the component, the power pump 12 in the liquid supply circulation device 10 is turned on. Under the action of the power pump 12, the quenching medium in the storage pool 11 is transported through the pipeline to the liquid collection pool 13. When the quenching medium in the liquid collection pool 13 flows through the overflow port to the liquid collection tank at the bottom outside the liquid collection pool 13, under the action of the return pump 18, the quenching medium returns to the storage pool 11 through the return pipe 19;

[0090] S32: When the variable pitch and variable trace high-uniformity quenching system receives the signal emitted by the component, the roller conveyor device 30 is turned on. The roller conveyor device 30 conveys the heat-treated quenched component 01 through the conveyor roller rods 32 to the middle of the upper multi-ring liquid spraying device and the lower multi-ring liquid spraying device in the multi-ring liquid spraying device 20;

[0091] S33: The automatic control valve body 16 in the liquid supply circulation device 10 is opened. The quenching medium in the liquid collection pool 13 sequentially flows through the main pipeline 14, the flow equalizer 15, the automatic control valve body 16 and the shunt pipe 17 into the intermediate transition pipe 21, the multi-zone multi-ring pipeline 24 and the universal liquid nozzle 25 in the multi-ring liquid spraying device 20, and is sprayed onto the surface of the quenched component 01 at a certain angle. At the same time, the flow detector and the pressure detector provided on the intermediate transition pipe 21 detect the flow and pressure of the quenching medium, and feedback to close the loop to control the opening of the automatic control valve body;

[0092] S34: The quenching medium falls to the bottom of the closed support frame 40 from the surface of the quenched component 01. Under the action of the return pump 18, it returns to the storage pool 11 through the return pipe 19 connected to the bottom of the closed support frame 40;

[0093] S35: When the variable pitch and variable trace high-uniformity quenching system receives the signal that the component quenching is completed, the power pump 12 stops working, the automatic control valve body 16 is closed, and the quenching of the quenched component 01 is completed.

[0094] Specifically, a variable pitch and variable trace high-uniformity quenching method provided by the present invention utilizes the variable pitch and variable trace high-uniformity quenching system in the present invention. By effectively combining multiple technologies such as controlling the flow rate / pressure of the quenching medium in each annular pipeline of the multi-ring liquid spraying device, precisely controlling the distance between each annular pipeline, the angle between the quenching medium and the contact surface of the hemisphere / semi-ellipsoid, and the contact surface shape of the quenching medium on the hemisphere / semi-ellipsoid, uniform quenching of the quenched variable pitch and variable trace component is achieved. The present invention effectively solves the water hammer phenomenon of pump body liquid supply and the problems of unstable pressure and flow rate of the quenching medium through the effective combination of the liquid collecting pool and the fluid equalizer with a wedge-shaped box structure. The diameter of the quenched component 01 processed by the present invention exceeds 3.5 m, and the height exceeds 1.5 m, with a deformation < 1 mm / m, reaching the international advanced level. The present invention solves the problem of large deformation during quenching of hemisphere and semi-ellipsoid-like quenched components 01 caused by the characteristics of variable pitch and variable trace, and at the same time improves the performance and performance uniformity of the quenched component 01.

[0095] The functions of the device can be realized by a program (software) executed by a processor. Additionally, they can also be realized by hardware such as LSI (Large Scale Integration) and ASIC (Application Specific Integrated Circuit), or can be realized by the combination of software and hardware.

[0096] The term "comprising" used throughout the present application should not be construed as being limited to the content listed thereafter; it does not exclude other structural elements or steps. Therefore, it should be construed as specifying the existence of the stated technical features, wholes, steps, or components, but does not exclude the existence or addition of one or more other technical features, wholes, steps, or components and their groups.

[0097] It can be understood that those skilled in the art can combine the features mentioned in one or more of the embodiments mentioned throughout the present application with the features in other embodiments in any appropriate manner to implement the present application.

[0098] Note that the above is only a preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein. Various obvious changes, re-adjustments, and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the technical concept of the present invention, more other equivalent embodiments can be included, all of which fall within the protection scope of the present invention.

Claims

1. A variable pitch and variable trace high uniformity quenching system, which includes a liquid supply and circulation device (10), a multi-ring liquid spraying device (20), a roller conveyor device (30) and an enclosed support frame (40). It is characterized in that: One end of the fluid homogenizer (15) in the liquid supply and circulation device (10) is connected to the intermediate transition pipe (21), the multi-zone multi-ring pipeline (24) and the universal liquid nozzle (25) in the multi-ring liquid spraying device (20) in sequence through a shunt pipe (17), wherein the multi-zone multi-ring pipeline (24) and the universal liquid nozzle (25) are arranged inside the enclosed support frame (40), and the return pipe (19) in the liquid supply and circulation device (10) is connected to the bottom of the enclosed support frame (40); The roller conveyor device (30) passes through the bottom of the enclosed support frame (40); The multi-ring liquid spraying device (20) further includes: One end of the intermediate transition pipe (21) is connected to the shunt pipe (17), and the other end of the intermediate transition pipe (21) is connected to one end of the multi-zone multi-ring pipeline (24). A flow detector (22) and a pressure detector (23) are sequentially arranged on the straight pipe of the intermediate transition pipe (21). The other end of the multi-zone multi-ring pipeline (24) is provided with a plurality of universal liquid nozzles (25), wherein the straight pipe lengths of the two ends of the intermediate transition pipe (21) from the flow detector (22) and the pressure detector (23) are 5 to 10 times the diameter of its straight pipe, and the distance between the flow detector (22) and the pressure detector (23) is greater than 200 mm; The multi-zone multi-ring pipeline (24) is composed of a plurality of annular pipelines, and each of the annular pipelines is arranged in a concentric circle. The distance between each adjacent concentric circle increases from the inside to the outside by 1.05 to 1.1 times, and the distance value is 200 to 600 mm. The connecting line between the center of the concentric circle and the center of the component to be quenched is perpendicular to the concentric circle; A small straight pipe with a length of 5 to 8 times the diameter of the small straight pipe is arranged at the bottom of the annular pipeline. The small straight pipe generally uses a 1 / 4-inch pipe. The distance between each adjacent small straight pipes on each adjacent two annular pipelines decreases from the inside to the outside by 0.9 to 0.95 times, and the distance value is 100 to 500 mm. The universal liquid nozzle (25) is connected to the small straight pipe.

2. The variable pitch and variable trace high uniformity quenching system according to claim 1, wherein The liquid supply and circulation device (10) further includes: A storage tank (11) is connected to one end of a power pump (12), the other end of the power pump (12) is connected to a liquid collecting tank (13), the liquid collecting tank (13) is connected to one end of the fluid homogenizer (15) through a main pipeline (14), and the other end of the fluid homogenizer (15) is provided with a plurality of the shunt pipes (17). An automatic control valve body (16) is arranged on each shunt pipe (17). The liquid collecting tank at the lower end of the liquid collecting tank (13) is connected to the return pipe (19), and the return pipe (19) is connected to the storage tank (11) through a return pump (18); The distance from the automatic control valve body (16) to the front end of the shunt pipe (17) is 5 to 8 times the diameter of the shunt pipe (17), and the distance from the automatic control valve body (16) to the rear end of the shunt pipe (17) is 10 to 15 times the diameter of the shunt pipe (17).

3. The variable pitch and variable trace high uniformity quenching system according to claim 1, characterized in that, The roller path transmission device (30) further includes: The main body support frame (31) is located at the bottom of the closed support frame (40). The conveying roller rods (32) and the position sensors (34) are arranged above the main body support frame (31), and the driving motor (33) is electrically connected to the conveying roller rods (32).

4. The variable pitch and variable trace high uniformity quenching system according to claim 1, characterized in that, The closed support frame (40) further includes: The closed support frame (40) is a portal frame structure (41). Liftable front and rear doors (42) are arranged at both ends of the closed support frame (40), and a rotatable maintenance door (43) is arranged at one end inside the closed support frame (40).

5. The variable pitch and variable trace high uniformity quenching system according to claim 1, characterized in that, It further includes: The fluid homogenizer (15) adopts a wedge-shaped box structure. The longitudinal length below the wedge-shaped box structure is 0.6 to 0.8 times the diameter of the quenched component, where the diameter of the quenched component includes the diameter of the hemispherical component or the semi-ellipsoidal component; The transverse length below the wedge-shaped box structure is 0.4 to 0.6 times the diameter of the quenched component; The total height of the box body of the wedge-shaped box structure is 0.5 to 0.6 times the diameter of the quenched component, and the height of the straight edge of the box body is 0.6 to 0.7 times the total height of the box body.

6. The variable pitch and variable amplitude high uniformity quenching system according to claim 1, characterized in that, It further includes: The angles of the universal liquid nozzles (25) on the annular pipeline are different, and the angles of the universal liquid nozzles (25) satisfy that the connection line between the nozzle orifice and the center of the quenched component is tangent to the surface of the quenched component; The diameter of the liquid droplets ejected by the universal liquid nozzle (25) is 0.08 mm to 0.2 mm, and the quenching medium ejected by it is in a conical shape, and the contact surface with the quenched component is an ellipse.

7. The variable pitch and variable amplitude high uniformity quenching system according to claim 2, characterized in that The number of the automatic control valve bodies (16) is equal to the number of the shunt pipes (17), and the numbers of the automatic control valve bodies (16) and the shunt pipes (17) are respectively four times the number of the multi-zone multi-ring pipelines (24).

8. A method for quenching a component to be quenched using the variable pitch and variable trace high uniformity quenching system according to any one of claims 1 to 7, characterized in that, It includes: When the variable pitch and variable trace high uniformity quenching system receives the signal pre-emitted by the component, the power pump (12) in the liquid supply circulation device (10) is turned on. Under the action of the power pump (12), the quenching medium in the storage pool (11) is transported through the pipeline to the liquid collection pool (13). When the quenching medium in the liquid collection pool (13) flows through the overflow port to the liquid collection tank at the outer bottom of the liquid collection pool (13), under the action of the return pump (18), the quenching medium returns to the storage pool (11) through the return pipe (19); When the variable pitch and variable trace high uniformity quenching system receives the signal sent by the component, the roller path transmission device (30) is turned on. The roller path transmission device (30) conveys the heat-treated quenched component to the middle of the upper multi-ring liquid spraying device and the lower multi-ring liquid spraying device in the multi-ring liquid spraying device (20) through the conveying roller rods (32); The automatic control valve body (16) in the liquid supply and circulation device (10) opens, and the quenching medium in the liquid collection pool (13) sequentially flows through the main pipeline (14), the flow equalizing body (15), the automatic control valve body (16), and the shunt pipe (17) and enters the intermediate transition pipe (21), the multi-zone multi-ring pipeline (24), and the universal liquid nozzle (25) in the multi-ring liquid spraying device (20), and is sprayed onto the surface of the quenched member at a certain angle. At the same time, the flow detector and pressure detector provided on the intermediate transition pipe (21) detect the flow rate and pressure of the quenching medium, and feedback to closed-loop control the opening degree of the automatic control valve body; The quenching medium falls from the surface of the quenched member to the bottom of the closed support frame (40), and under the action of the reflux pump (18), returns to the storage pool (11) via the reflux pipe (19) connected to the bottom of the closed support frame (40); When the variable pitch and variable trace high uniformity quenching system receives the signal that the member quenching is completed, the power pump (12) stops working, the automatic control valve body (16) closes, and the quenched member quenching is completed.

Images