A multi-section cooling device and cooling process for large precision counterweight castings

Abstract

The application relates to the technical field of casting equipment, and discloses a V-process multi-section cooling device and cooling process for large-scale precise counterweight castings. The V-process multi-section cooling device and cooling process for large-scale precise counterweight castings comprises a collecting box, a conveying module is arranged on the collecting box, a cooling assembly is arranged on the conveying module, and the cooling assembly comprises a triangular plate. The V-process multi-section cooling device and cooling process for large-scale precise counterweight castings are used for adapting the segmented cooling requirement of the large-scale precise counterweight castings. The cooling assembly is arranged, the assembly is sequentially arranged along the conveying module in cooperation with multiple groups of trapezoidal boxes, a segmented cooling area is formed, an inlet pipe is connected with cold water boxes with different temperatures, the water temperature of each section can be accurately adjusted according to the cooling requirement of the castings, a power motor drives a cooling fan to rotate, airflow circulation is accelerated, an inclined nozzle sprays cold water mist to the center of the cooling fan, a gas-liquid mixed cooling flow is formed, and heat exchange efficiency is strengthened.

Description

Technical Field

[0001] This invention relates to the field of casting equipment technology, specifically to a V-process multi-stage cooling device and cooling process for large precision counterweight castings. Background Technology

[0002] The V-process multi-stage cooling device for large precision counterweight castings is a core process equipment and technology in the casting manufacturing field. Its core function is to perform segmented and precise cooling on large precision counterweight castings after V-process casting.

[0003] The cooling device is mainly divided into four stages according to the material and structural characteristics of the casting: preheating and heat preservation, rapid cooling, gradient cooling, and constant temperature stabilization. The temperature and time of each stage are dynamically controlled.

[0004] However, the above-mentioned equipment has certain shortcomings in use. Existing cooling devices can easily cause cracks and deformation when the casting cools too quickly at high temperatures, and can prolong the production cycle when the casting cools too slowly at low temperatures. In addition, the heat dissipation rate of different parts of the casting is inconsistent, which can easily lead to internal stress concentration and defects such as shrinkage cavities, shrinkage porosity, and deformation, which seriously affect the precision of the casting. In view of this, we propose a V-method multi-stage cooling device and cooling process for large precision counterweight castings. Summary of the Invention

[0005] The purpose of this invention is to provide a V-type multi-stage cooling device and cooling process for large precision counterweight castings, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A V-process multi-stage cooling device for large precision counterweight castings includes a collection box, a conveying module mounted on the collection box, a casting body placed on the conveying module, and a cooling assembly mounted on the conveying module. The cooling assembly includes: A triangular plate is fixedly installed on the conveying module. A support plate is fixedly installed on the triangular plate. A mounting frame is fixedly installed on the support plate. An insulation curtain is fixedly installed on the mounting frame. A trapezoidal box is fixedly installed on the mounting frame. A ventilation duct is fixedly installed on the trapezoidal box. A power motor is fixedly installed on the trapezoidal box. A straight rod is fixedly installed at the output end of the power motor. A sealing cylinder is fixedly installed inside the trapezoidal box. A cooling fan is fixedly installed on the straight rod. A waterproof membrane is fixedly installed inside the trapezoidal box. A square tube is fixedly installed on the trapezoidal box. A water inlet pipe is fixedly installed on the square tube. An angled nozzle is fixedly installed at the bottom of the square tube.

[0007] In a further embodiment, multiple sets of the triangular plate, support plate, insulation curtain, trapezoidal box, ventilation pipe, power motor, straight rod, sealing cylinder, cooling fan, waterproof plate, square pipe, water inlet pipe, and oblique nozzle are provided.

[0008] In a further embodiment, the casting body is positioned below the trapezoidal box, the cooling fan is positioned at the center of the trapezoidal box, multiple sets of angled nozzles face the center of the cooling fan, multiple sets of water inlet pipes are connected to cold water boxes of different temperatures, the waterproof plate is positioned directly below the ventilation pipe, and the straight rod is positioned inside the sealing cylinder.

[0009] In a further embodiment, the collection box is provided with a collection assembly, which includes an air outlet pipe fixedly installed on the collection box. A collection tube is fixedly installed on the collection box, and a cover plate is snapped onto the collection box. A protective cylinder is fixedly installed inside the collection box, and an inclined filter plate is fixedly installed inside the collection box. A partition plate is fixedly installed between the bottom of the inclined filter plate and the collection box. A triangular guide plate is fixedly installed inside the collection box, and an inclined plate is fixedly installed on the bottom inner side of the collection box. A collection groove is formed on the bottom inner side of the collection box.

[0010] In a further embodiment, the air outlet pipe and the protective cylinder are positioned correspondingly, with the air outlet pipe and the protective cylinder positioned above the inclined filter plate, and the triangular guide plate positioned diagonally below the inclined filter plate.

[0011] In a further embodiment, multiple sets of inclined plates are provided, and the collection trough is arranged between the multiple sets of inclined plates, with the collection trough corresponding to the position of the collection pipe.

[0012] In a further embodiment, the conveying module is provided with an auxiliary component, which includes an outer heat dissipation strip fixedly installed on the outer surface of the trapezoidal box, an inner heat dissipation strip fixedly installed on the inner surface of the trapezoidal box, a servo motor fixedly installed on the trapezoidal box, an exhaust fan fixedly installed at the output end of the servo motor, a circular box fixedly installed on the water inlet pipe, a circular rod fixedly installed inside the circular box, and an arc plate fixedly installed on the circular rod.

[0013] In a further embodiment, multiple sets of the outer heat dissipation strip, inner heat dissipation strip, servo motor, exhaust fan, round box, round rod, and arc plate are provided.

[0014] In a further embodiment, the exhaust fan is located inside the trapezoidal box, and multiple sets of the arc plates are located inside the circular box. The interior of the circular box is connected to the interior of the square tube via a water inlet pipe.

[0015] The cooling process of a V-process multi-stage cooling device for a large precision counterweight casting includes the following steps: S1. First, complete the pre-processing and debugging of the device, check the connection of the collection box, conveying module and each component, confirm the cover plate is snapped and sealed, place the casting to be cooled stably on the conveying module and align it with the bottom of the trapezoidal box, and adjust the connection between the water inlet pipe and the cold water box to prepare for segmented cooling. S2. Next, start the conveyor module to move the casting, and at the same time start the power motor of the cooling component to drive the cooling fan to rotate in the sealed cylinder to generate airflow. The heat insulation curtain unfolds to reduce heat loss, and the waterproof plate blocks water mist to avoid equipment failure. S3. Then, the temperature of the cold water in the inlet pipe is controlled according to the cooling requirements of the casting. The cold water is evenly distributed to the square pipe through the inner arc plate of the round box. The angled nozzle sprays water mist towards the center of the cooling fan, which mixes with the airflow to form a cooling flow, thus achieving the initial segmented cooling of the casting. S4. During the cooling process, the servo motor of the auxiliary component is started, which drives the exhaust fan to expel hot and humid air. The outer and inner heat dissipation bars accelerate heat dissipation, and the inner arc plate of the round box continuously ensures that the cold water is evenly distributed, ensuring consistent cooling effect. S5. The water vapor generated by cooling is discharged from the outlet pipe through the protective cylinder. The wastewater falls into the inclined filter plate to filter impurities. It is guided to the inclined plate by the triangular guide plate and then gathers into the collection tank. The partition plate prevents impurities from being mixed in again and facilitates the collection pipe to recycle the wastewater. S6. Finally, after the casting has undergone multiple cooling stages to complete overall cooling, all power and cold water supplies are shut off, the conveying module is stopped, the casting is removed, and the cover plate is opened to clean impurities from the inclined filter plate and maintain the components to ensure the device can be used repeatedly.

[0016] Compared with the prior art, the present invention provides a V-method multi-stage cooling device and cooling process for large precision counterweight castings, which has the following beneficial effects: 1. The V-type multi-stage cooling device and cooling process for this large precision counterweight casting: In order to adapt the device to the segmented cooling requirements of large precision counterweight castings, a cooling component is set up. This component, together with multiple sets of trapezoidal boxes, is arranged sequentially along the conveying module to form segmented cooling areas. The water inlet pipe is connected to cold water boxes of different temperatures, and the water temperature of each segment can be precisely adjusted according to the cooling requirements of the casting. The power motor drives the cooling fan to rotate, accelerating the airflow circulation. The angled nozzle sprays cold water mist towards the center of the cooling fan to form a gas-liquid mixed cooling flow, thereby enhancing the heat exchange efficiency.

[0017] 2. The V-type multi-stage cooling device and cooling process for this large precision counterweight casting: In order to adapt the device to the cooling wastewater treatment requirements of environmentally friendly production scenarios, a collection component is set up. This component, together with the cooled wastewater and water vapor, falls into the collection box. Inclined filter plates filter impurities in the water, and triangular guide plates guide the filtered water flow to the inclined plates. Multiple sets of inclined plates gather the water flow into the collection tank for centralized recycling and reuse. At the same time, the collection pipe is used to recycle and reuse the water flow. The protective cylinder protects the air outlet pipe from direct impact of water vapor. The air outlet pipe discharges excess water vapor. The cover plate is easy to open for cleaning impurities. The partition separates the filtration area and the collection area to prevent impurities from being mixed in again.

[0018] 3. The V-type multi-stage cooling device and cooling process for this large precision counterweight casting: In order to reduce the failure rate of the device, auxiliary components are set up. These components, together with the outer and inner heat dissipation strips, increase the heat exchange area of ​​the trapezoidal box and accelerate the dissipation of heat inside the box. With the rotation of the exhaust fan, the hot and humid air inside the box is quickly discharged, avoiding the accumulation of water vapor which affects the cooling effect. Multiple sets of arc plates inside the circular box guide the water flow to be evenly distributed to the square pipe, ensuring that the spray pressure of the angled nozzles is consistent and ensuring uniform cooling of the casting. The servo motor drives the exhaust fan to precisely control the wind speed to adapt to the heat dissipation requirements of different cooling stages. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 This is a partial structural diagram of the present invention; Figure 4 This is a schematic diagram of the collection box structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of the collection box of the present invention; Figure 6 This is a cross-sectional view of the collection box structure of the present invention; Figure 7 This is a schematic diagram of the trapezoidal box structure of the present invention; Figure 8 This is a schematic diagram of the trapezoidal box structure from another perspective of the present invention; Figure 9 This is a cross-sectional view of part of the structure of the present invention; Figure 10 This is a schematic diagram of a portion of the cooling component structure of the present invention; Figure 11 This is a cross-sectional view of the auxiliary component structure of the present invention; Figure 12 This is a flowchart of the construction process of the present invention.

[0020] Explanation of icon numbers: 1. Collection box; 2. Conveying module; 3. Casting body; 4. Cooling components; 41. Triangular plate; 42. Support plate; 43. Mounting bracket; 44. Insulation curtain; 45. Trapezoidal box; 46. Ventilation duct; 47. Power motor; 48. Straight rod; 49. Sealing cylinder; 410. Cooling fan; 411. Waterproof membrane; 412. Square tube; 413. Water inlet pipe; 414. Angled nozzle; 5. Collection assembly; 51. Exhaust pipe; 52. Collection pipe; 53. Cover plate; 54. Protective cylinder; 55. Inclined filter plate; 56. Partition plate; 57. Triangular guide plate; 58. Inclined plate; 59. Collection trough; 6. Auxiliary components; 61. External heat sink; 62. Internal heat sink; 63. Servo motor; 64. Exhaust fan; 65. Round box; 66. Round rod; 67. Arc plate. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0023] Please see Figures 1-12 The present invention provides a technical solution: A V-type multi-stage cooling device for a large precision counterweight casting includes a collection box 1, a conveying module 2 on the collection box 1, and a casting body 3 placed on the conveying module 2.

[0024] In one embodiment of the present invention, a cooling assembly 4 is provided on the conveying module 2. The cooling assembly 4 includes a triangular plate 41, which is fixedly installed on the conveying module 2. A support plate 42 is fixedly installed on the triangular plate 41, and a mounting frame 43 is fixedly installed on the support plate 42. An insulation curtain 44 is fixedly installed on the mounting frame 43, and a trapezoidal box 45 is fixedly installed on the mounting frame 43. A ventilation pipe 46 is fixedly installed on the trapezoidal box 45, and a power motor 47 is fixedly installed on the trapezoidal box 45. A straight rod 48 is fixedly installed at the output end of the power motor 47. A sealing cylinder 49 is fixedly installed inside the trapezoidal box 45, and a cooling fan 410 is fixedly installed on the straight rod 48. A waterproof plate 411 is fixedly installed inside the trapezoidal box 45, and a cooling fan 410 is fixedly installed on the trapezoidal box 45. A square tube 412 is provided, with a water inlet pipe 413 fixedly installed on it. An angled nozzle 414 is fixedly installed at the bottom of the square tube 412. A triangular plate 41, a support plate 42, an insulation curtain 44, a trapezoidal box 45, a ventilation pipe 46, a power motor 47, a straight rod 48, a sealing cylinder 49, a cooling fan 410, a waterproof plate 411, and multiple sets of square tubes 412, water inlet pipes 413, and angled nozzles 414 are provided. The casting body 3 is located below the trapezoidal box 45. The cooling fan 410 is located at the center of the trapezoidal box 45. Multiple sets of angled nozzles 414 face the center of the cooling fan 410. Multiple sets of water inlet pipes 413 are connected to cold water boxes of different temperatures. The waterproof plate 411 is located directly below the ventilation pipe 46. The straight rod 48 is located inside the sealing cylinder 49.

[0025] In one embodiment of the present invention, a collection assembly 5 is provided on the collection box 1. The collection assembly 5 includes an air outlet pipe 51, which is fixedly installed on the collection box 1. A collection pipe 52 is fixedly installed on the collection box 1. A cover plate 53 is snapped onto the collection box 1. A protective cylinder 54 is fixedly installed inside the collection box 1. An inclined filter plate 55 is fixedly installed inside the collection box 1. A partition plate 56 is fixedly installed between the bottom of the inclined filter plate 55 and the collection box 1. A triangular guide plate 57 is fixedly installed inside the collection box 1. An inclined plate 58 is fixedly installed on the bottom inner side of the collection box 1. A collection groove 59 is opened on the bottom inner side of the collection box 1. The positions of the air outlet pipe 51 and the protective cylinder 54 are corresponding. The air outlet pipe 51 and the protective cylinder 54 are located above the inclined filter plate 55. The triangular guide plate 57 is located diagonally below the inclined filter plate 55. Multiple sets of inclined plates 58 are provided. The collection groove 59 is located between multiple sets of inclined plates 58. The positions of the collection groove 59 and the collection pipe 52 are corresponding.

[0026] In one embodiment of the present invention, an auxiliary component 6 is provided on the conveying module 2. The auxiliary component 6 includes an outer heat dissipation strip 61, which is fixedly installed on the outer surface of the trapezoidal box 45. An inner heat dissipation strip 62 is fixedly installed on the inner surface of the trapezoidal box 45. A servo motor 63 is fixedly installed on the trapezoidal box 45. An exhaust fan 64 is fixedly installed at the output end of the servo motor 63. A circular box 65 is fixedly installed on the water inlet pipe 413. A circular rod 66 is fixedly installed inside the circular box 65. An arc plate 67 is fixedly installed on the circular rod 66. Multiple sets of outer heat dissipation strip 61, inner heat dissipation strip 62, servo motor 63, exhaust fan 64, circular box 65, circular rod 66 and arc plate 67 are provided. The exhaust fan 64 is located inside the trapezoidal box 45. Multiple sets of arc plates 67 are located inside the circular box 65. The inside of the circular box 65 is connected to the inside of the square pipe 412 through the water inlet pipe 413.

[0027] The cooling process of a V-process multi-stage cooling device for a large precision counterweight casting includes the following steps: S1. First, complete the pre-processing and initial debugging of each component of the device, check the connection stability of the collection box 1, the conveying module 2 and each component, and ensure that the triangular plate 41 is firmly fixed to the conveying module 2, the support plate 42 is firmly fixed to the triangular plate 41, the mounting bracket 43 is firmly fixed to the support plate 42, etc. At the same time, check the snap-fit ​​sealing of the cover plate 53 and the collection box 1, place the casting body 3 to be cooled stably on the conveying module 2, and ensure that the casting body 3 is aligned directly below the multiple trapezoidal boxes 45, and debug the connection between the multiple water inlet pipes 413 and the cold water boxes of different temperatures to prepare for subsequent segmented cooling. S2. Next, start the conveying module 2 to move the casting body 3 slowly. At the same time, start the multiple sets of power motors 47 of the cooling component 4. The output end of the power motor 47 drives the straight rod 48 to rotate. The straight rod 48 drives the cooling fan 410 to rotate stably inside the sealed cylinder 49. The rotation of the cooling fan 410 generates airflow. The airflow enters and exits the trapezoidal box 45 through the ventilation pipe 46. At the same time, the heat insulation curtain 44 on the mounting frame 43 unfolds to reduce the heat loss of the cooling area below the trapezoidal box 45. The waterproof plate 411 effectively prevents subsequent water mist from contacting the cooling fan 410 and related components of the power motor 47 to avoid equipment failure. S3. Subsequently, according to the cooling requirements of different parts of the casting body 3, the temperature of the cold water connected to the multiple sets of water inlet pipes 413 is controlled. The cold water enters the round box 65 through the water inlet pipes 413. The round rod 66 and multiple sets of arc plates 67 inside the round box 65 guide the cold water to be evenly distributed to the square pipe 412. Multiple sets of inclined nozzles 414 at the bottom of the square pipe 412 spray cold water mist towards the center of the cooling fan 410. The cold water mist mixes with the airflow generated by the cooling fan 410 to form a gas-liquid mixed cooling flow, which acts on the casting body 3 moving below from top to bottom, realizing the initial segmented cooling of the casting. S4. During the cooling process, multiple servo motors 63 of the auxiliary component 6 are activated. The servo motors 63 drive the exhaust fan 64 to rotate inside the trapezoidal box 45, quickly expelling the hot and humid air inside the trapezoidal box 45. At the same time, the outer heat dissipation strips 61 on the outer surface of the trapezoidal box 45 and the inner heat dissipation strips 62 on the inner surface increase the heat exchange area, accelerate the dissipation of heat inside the trapezoidal box 45, avoid water vapor accumulation affecting the cooling effect, and further ensure uniform cooling of the casting body 3. Meanwhile, the arc plate 67 inside the round box 65 continuously ensures uniform distribution of cold water and ensures consistent spray pressure of multiple inclined nozzles 414. S5. Wastewater and water vapor generated during the cooling process fall into the collection box 1 under the action of gravity. Water vapor rises to the top of the collection box 1, and after being protected by the protective cylinder 54, it is discharged from the vent pipe 51 to avoid water vapor accumulation affecting the operation of the device. Wastewater falls onto the inclined filter plate 55, which filters out impurities in the wastewater. The filtered wastewater flows to multiple sets of inclined plates 58 under the guidance of the triangular guide plate 57. The inclined plates 58 collect the wastewater into the collection tank 59. The partition plate 56 separates the filtration area and the collection area to prevent impurities from being mixed in again, and facilitates the subsequent centralized recycling and reuse of wastewater through the collection pipe 52. S6. Finally, under the drive of the conveying module 2, the casting body 3 passes through multiple sets of cooling components 4 for segmented cooling until the overall cooling process is completed. After cooling, the cold water supply of all power motors 47, servo motors 63 and water inlet pipes 413 is turned off, the conveying module 2 is stopped, and the cooled casting body 3 is removed. Subsequently, the cover plate 53 can be opened to clean the impurities filtered on the inclined filter plate 55 and maintain the various components of the device for the next cycle of use.

[0028] All electrical components appearing in this application are electrically connected to the controller and 220V AC mains power. The controller is a conventional and known device that can control the conveyor module 2, the power motor 47, and the servo motor 63. The signal interaction of each component adopts the PLC control protocol commonly used in industrial equipment, which is common knowledge to those skilled in the art and can be implemented without further detailed description. The control logic and signal interaction method are existing technologies and will not be described in detail. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all connected using conventional methods such as riveting and welding that are mature in the prior art. The standard parts all adopt conventional models in the prior art.

[0029] It should be noted that the above electrical components are all existing technology products. Those skilled in the art should select, install, and complete the circuit debugging work according to the needs of use to ensure that each electrical appliance can work normally. The components are all general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. No specific restrictions are made here. The supporting structures of the hydraulic drive structure appearing in this application, such as hydraulic tanks and hydraulic pumps, are existing equipment. The circuit connection adopts the conventional connection method in the prior art, and will not be described in detail here.

[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A V-process multi-stage cooling device for a large precision counterweight casting, comprising a collection box (1), a conveying module (2) provided on the collection box (1), and a casting body (3) placed on the conveying module (2), characterized in that: The conveying module (2) is provided with a cooling assembly (4), which includes: A triangular plate (41) is fixedly installed on the conveying module (2). A support plate (42) is fixedly installed on the triangular plate (41). A mounting frame (43) is fixedly installed on the support plate (42). A heat preservation curtain (44) is fixedly installed on the mounting frame (43). A trapezoidal box (45) is fixedly installed on the mounting frame (43). Ventilation pipe (46) is fixedly installed on trapezoidal box (45). A power motor (47) is fixedly installed on trapezoidal box (45). A straight rod (48) is fixedly installed at the output end of the power motor (47). A sealing cylinder (49) is fixedly installed inside the trapezoidal box (45). A cooling fan (410) is fixedly installed on the straight rod (48). A waterproof board (411) is fixedly installed inside the trapezoidal box (45). A square tube (412) is fixedly installed on the trapezoidal box (45). A water inlet pipe (413) is fixedly installed on the square tube (412). An oblique nozzle (414) is fixedly installed at the bottom of the square tube (412).

2. The V-type multi-stage cooling device for large precision counterweight castings according to claim 1, characterized in that: The triangular plate (41), support plate (42), heat preservation curtain (44), trapezoidal box (45), ventilation pipe (46), power motor (47), straight rod (48), sealing cylinder (49), cooling fan (410), waterproof plate (411), square tube (412), water inlet pipe (413) and oblique nozzle (414) are provided in multiple sets.

3. The V-type multi-stage cooling device for large precision counterweight castings according to claim 1, characterized in that: The casting body (3) is located below the trapezoidal box (45), the cooling fan (410) is located at the center of the trapezoidal box (45), multiple sets of inclined nozzles (414) face the center of the cooling fan (410), multiple sets of water inlet pipes (413) are connected to cold water boxes of different temperatures, the waterproof plate (411) is located directly below the ventilation pipe (46), and the straight rod (48) is located inside the sealing cylinder (49).

4. The V-type multi-stage cooling device for large precision counterweight castings according to claim 1, characterized in that: The collection box (1) is provided with a collection component (5), which includes an air outlet pipe (51). The air outlet pipe (51) is fixedly installed on the collection box (1). A collection pipe (52) is fixedly installed on the collection box (1). A cover plate (53) is snapped onto the collection box (1). A protective cylinder (54) is fixedly installed inside the collection box (1). An inclined filter plate (55) is fixedly installed inside the collection box (1). A partition plate (56) is fixedly installed between the bottom of the inclined filter plate (55) and the collection box (1). A triangular guide plate (57) is fixedly installed inside the collection box (1). An inclined plate (58) is fixedly installed on the bottom inner side of the collection box (1). A collection groove (59) is opened on the bottom inner side of the collection box (1).

5. The V-type multi-stage cooling device for large precision counterweight castings according to claim 4, characterized in that: The air outlet pipe (51) and the protective cylinder (54) are positioned opposite each other. The air outlet pipe (51) and the protective cylinder (54) are located above the inclined filter plate (55), and the triangular guide plate (57) is located below the inclined filter plate (55).

6. The V-type multi-stage cooling device for large precision counterweight castings according to claim 4, characterized in that: The inclined plate (58) is provided in multiple sets, and the collection groove (59) is provided between the multiple sets of inclined plates (58). The collection groove (59) is positioned corresponding to the collection pipe (52).

7. The V-type multi-stage cooling device for large precision counterweight castings according to claim 1, characterized in that: The conveying module (2) is provided with an auxiliary component (6), which includes an outer heat dissipation strip (61), which is fixedly installed on the outer surface of the trapezoidal box (45). An inner heat dissipation strip (62) is fixedly installed on the inner surface of the trapezoidal box (45). A servo motor (63) is fixedly installed on the trapezoidal box (45). An exhaust fan (64) is fixedly installed at the output end of the servo motor (63). A round box (65) is fixedly installed on the water inlet pipe (413). A round rod (66) is fixedly installed inside the round box (65). An arc plate (67) is fixedly installed on the round rod (66).

8. The V-type multi-stage cooling device for large precision counterweight castings according to claim 7, characterized in that: The outer heat dissipation strip (61), inner heat dissipation strip (62), servo motor (63), exhaust fan (64), round box (65), round rod (66) and arc plate (67) are provided in multiple sets.

9. The V-type multi-stage cooling device for large precision counterweight castings according to claim 7, characterized in that: The exhaust fan (64) is located inside the trapezoidal box (45), and multiple sets of the arc plates (67) are located inside the round box (65). The interior of the round box (65) is connected to the interior of the square tube (412) through the water inlet pipe (413).

10. A cooling process for a V-method multi-stage cooling device for large precision counterweight castings according to any one of claims 1-9, characterized in that, Includes the following steps: S1. First, complete the pre-processing and debugging of the device, check the connection of the collection box (1), the conveying module (2) and each component, confirm that the cover plate (53) is snapped and sealed, place the casting to be cooled stably on the conveying module (2) and align it with the bottom of the trapezoidal box (45), and debug the connection between the water inlet pipe (413) and the cold water box to prepare for segmented cooling. S2. Next, start the conveying module (2) to move the casting, and at the same time start the power motor (47) of the cooling component (4) to drive the cooling fan (410) to rotate in the sealed cylinder (49) to generate airflow. The heat insulation curtain (44) unfolds to reduce heat loss, and the waterproof plate (411) blocks water mist to avoid equipment failure. S3. Then, according to the cooling requirements of the casting, the temperature of the cold water in the water inlet pipe (413) is controlled. The cold water is evenly distributed to the square pipe (412) through the inner arc plate (67) of the round box (65). The angled nozzle (414) sprays water mist into the center of the cooling fan (410), mixes with the airflow to form a cooling flow, and realizes the initial segmented cooling of the casting. S4. During the cooling process, the servo motor (63) of the auxiliary component (6) is started, which drives the exhaust fan (64) to discharge the hot and humid air. The outer heat sink (61) and the inner heat sink (62) accelerate the heat dissipation. The inner arc plate (67) of the round box (65) continuously ensures the uniform distribution of cold water and ensures consistent cooling effect. S5. The water vapor generated by cooling is discharged from the outlet pipe (51) through the protective cylinder (54). The wastewater falls into the inclined filter plate (55) to filter impurities. It is guided to the inclined plate (58) through the triangular guide plate (57) and then gathers into the collection tank (59). The partition plate (56) prevents impurities from being mixed in again and facilitates the collection pipe (52) to recover the wastewater. S6. Finally, after the casting has been cooled in multiple stages, all power and cold water supply are turned off, the conveying module (2) is stopped, the casting is taken out, and the cover plate (53) is opened to clean the impurities of the inclined filter plate (55) and maintain the components to ensure the device can be used repeatedly.

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