Rapid cooling device and method for casting of engineering machinery castings

Abstract

The invention discloses a rapid cooling device and method for casting of engineering machinery castings, and relates to the technical field of casting cooling devices. According to the rapid cooling device and method for casting of the engineering mechanical castings, an exhaust pipe is fixed to the top of the machine shell, an air inlet pipe is fixed to the back face of the machine shell, the guide rail can convey the to-be-cooled engineering mechanical castings into the machine shell, and a cooling unit for cooling the engineering mechanical castings and an air nozzle are arranged in the machine shell. The pneumatic deflector rod is fixed in the machine shell through a positioning plate and blows out high-pressure airflow to drive the pneumatic deflector rod to rotate with the mounting shaft as the axis; the atomization nozzle sprays atomized cooling water to cool the engineering machinery casting, thermal stress and deformation risks are reduced, a steam film on the surface of the casting can be disturbed, water drop penetration is promoted, the convective heat transfer coefficient is increased, water mist is prevented from being accumulated locally to form a steam bag, the overall cooling speed is more stable and more efficient, and crack initiation and expansion are effectively restrained.

Description

Technical Field

[0001] This invention relates to the field of casting cooling devices, specifically to a rapid cooling device and method for casting engineering machinery castings. Background Technology

[0002] After the casting is processed, it usually needs to be cooled before it can be processed in subsequent operations. Currently, spray cooling devices are usually used to cool the casting. Although these devices greatly improve the cooling efficiency compared to traditional slow cooling pits and furnace cooling, spray cooling is essentially a forced rapid cooling, which can easily cause temperature gradients, resulting in surface hot cracks or internal cold cracks in the casting. For example, CN219616683U discloses a casting processing cooling device. This application uses a motor to drive the casting to rotate in the spray area to reduce or eliminate spray dead angles. However, it cannot avoid surface hot cracking or internal cold cracking caused by rapid cooling. CN219632588U discloses a casting cooling device that can automatically control the amount of water sprayed and the degree of atomization. Although it uses air-water atomizing nozzles to spray cooling water to form a fine water mist, the cooling is more uniform and the risk of cracking is reduced. However, the water mist is easy to accumulate in local areas to form "air pockets", which leads to uneven local heating and cooling and causes hot cracking or cold cracking. Therefore, a rapid cooling device and method for casting engineering machinery castings are proposed. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a rapid cooling device and method for casting engineering machinery castings, solving the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a rapid cooling device for casting engineering machinery parts, comprising a housing with an exhaust pipe fixed at the top and an intake pipe fixed at the back, a guide rail and a movable seat for conveying the engineering machinery casting to be cooled into the housing, a cooling unit for cooling the engineering machinery casting inside the housing, and a clamping assembly for fixing the engineering machinery casting to be cooled, an tilting assembly for changing the angle of the engineering machinery casting, and a guiding assembly for changing the distribution of water mist in the area, wherein the cooling unit includes: The mounting shaft is movably mounted on the top of the movable base at one end; A pneumatic lever, one end of which is fixed to the side wall of the mounting shaft; The support plate is fixed at the bottom to the top of the mounting shaft; The nozzle is fixed inside the housing by a positioning plate and blows out a high-pressure airflow to drive the pneumatic lever to rotate around the mounting shaft. The atomizing nozzle is installed inside the housing via a mounting rod, and sprays atomized cooling water to cool the castings of the construction machinery. The clamping assembly includes: The fixed plate is located above the movable base; One chuck slides through the fixed plate to fix the engineering machinery casting to be cooled; The second chuck slides out from the fixed plate at one end, changing the clamping position of the engineering machinery casting.

[0005] Preferably, the clamping assembly further includes: a cylinder, which is fixed to the fixed plate via a piston rod, and drives the fixed plate to move to fix the engineering machinery casting; and a sliding seat, which slides through the piston rod and changes the height of the fixed plate under the action of external force.

[0006] Preferably, the clamping assembly further includes: a guide plate, the bottom of which is fixed to the top of the support plate and slidably sleeved on the outside of the sliding seat to restrict the movement direction of the sliding seat; a threaded rod, the bottom of which is movably mounted on the top of the support plate and threadedly engaged with the sliding seat; and a motor, the output end of which is fixed to the top of the threaded rod to drive the threaded rod to rotate and change the height of the sliding seat.

[0007] Preferably, the clamping assembly further includes: a first connecting plate, fixed to the first clamp and slidably inserted within the fixed plate; a first magnet, fixed to the first connecting plate; a second connecting plate, fixed to the second clamp and slidably inserted within the fixed plate; a second magnet, fixed to the second connecting plate; and an electromagnet assembly, fixed to the fixed plate and magnetically cooperating with the first and second magnets to change the positions of the first and second clamps.

[0008] Preferably, the tilting assembly includes: a sliding sleeve, one end of which is fixed to a fixed plate; a sliding rod, one end of which slides through the sliding sleeve to limit the deflection angle of the sliding sleeve; a guide rod, both ends of which are fixed to the sliding seat and slide out from the sliding rod to limit the movement direction of the sliding rod; a tilting magnet, the bottom of which is fixed to the top of the sliding rod; an electromagnet one, the bottom of which is fixed to the top of the sliding seat; and an electromagnet two, the sidewall of which is fixed to the sliding seat, and which magnetically cooperates with the electromagnet one and the tilting magnet to change the angle of the fixed plate.

[0009] Preferably, the flow guiding assembly includes: a push rod, the top of which is fixed to the bottom of the fixing plate and is L-shaped; a push plate, the side wall of which slides against the push rod; a limiting rod, one end of which slides through the push plate to limit the movement direction of the push plate; a spring, one end of which is fixed to the push plate; and a mounting plate, the bottom of which is fixed to the top of the support plate, the side wall of which is fixed to the other end of the limiting rod, and the other end of the spring is fixed to the mounting plate.

[0010] Preferably, the flow guiding assembly further includes: a flow guiding plate, which is hinged to the support plate via a fixed shaft and a torsion spring; an inclined block, whose bottom is fixed to the top of the flow guiding plate and has an inclined surface at one end, which changes the angle of the flow guiding plate under the drive of the push plate; a limiting post, one end of which is fixed to the side wall of the flow guiding plate and the other end of which slides through the support plate; and an arc-shaped plate, one end of which is fixed to the bottom of the support plate and slides around the limiting post.

[0011] Preferably, the flow guiding assembly further includes: an extension plate that slides against the flow guiding plate to change the water mist distribution in the area in conjunction with the flow guiding plate; and a sliding block that is fixed at one end to the extension plate and slides through the support plate at the other end.

[0012] The present invention also provides a cooling method suitable for a rapid cooling device for casting engineering machinery castings, comprising the following steps: S1. The engineering machinery casting to be cooled is mounted on the moving base using the clamping assembly; S2. The control moving seat drives the engineering machinery casting along the guide rail into the machine housing, and the atomizing nozzle sprays water mist to cool the engineering machinery casting; S3. During the cooling process, the tilting component changes the angle of the engineering machinery casting, and in conjunction with the flow guiding component, changes the water mist distribution in the lower half of the engineering machinery casting. S4. Remove the cooled construction machinery casting and install the next construction machinery casting to be cooled. Repeat steps S1-S3.

[0013] Preferably, the angle variation range of the engineering machinery casting is between 0-20°.

[0014] This invention provides a rapid cooling device and method for casting engineering machinery castings. Compared with the prior art, it has the following advantages: (1) The rapid cooling device and method for casting of engineering machinery castings, in which the casting passes through three cooling zones with gradually decreasing temperatures in sequence, realizes gradient cooling, which helps to reduce the concentration of thermal stress caused by rapid cooling, thereby effectively reducing the probability of cracks. The heat generated in the previous cooling process is used to preheat the cooling water in the next cooling process, so that the water temperature entering different cooling zones is moderate (e.g., higher temperature water in zone a, medium temperature water in zone b, and low temperature water in zone c), avoiding the problem of surface hardening or uneven internal stress caused by excessively rapid cooling. The recycling of residual heat maximizes the energy utilization efficiency. At the same time, the higher initial cooling water temperature reduces the possibility of forming a stable vapor film on the surface of the casting, improves the actual heat transfer efficiency, and is conducive to more uniform heat dissipation.

[0015] (2) The rapid cooling device and method for casting of engineering machinery castings, by continuously changing the clamping position and synchronously changing the posture of the casting (such as rotation), allows the originally blocked areas to be exposed to the cooling medium in turn, ensuring that all surfaces can fully contact the cooling water / air, greatly reducing the surface temperature difference, reducing thermal stress and deformation risk, disturbing the vapor film on the surface of the casting, promoting water droplet penetration, improving the convective heat transfer coefficient, preventing water mist from accumulating in local areas to form "vacuum pockets", making the overall cooling speed more stable and efficient, and effectively inhibiting crack initiation and propagation.

[0016] (3) The rapid cooling device and method for casting of engineering machinery castings, when the flipping component changes the tilt angle of the casting, synchronously drives the flow guiding component, actively adjusts the airflow speed, direction and distribution in the bottom area of ​​the engineering machinery casting to guide the cooling medium (water mist / hot air) into the bottom gap, enhances bottom convection heat transfer, significantly reduces defects such as bending, warping and internal stress concentration, effectively blows through the stable vapor film attached to the bottom, so that the cooling medium directly contacts the metal surface and enters the efficient nucleation boiling zone, improving the local heat transfer coefficient by more than 30%.

[0017] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is another perspective view of the overall structure of the present invention; Figure 3 This is a top sectional view of the housing of the present invention; Figure 4 This is a structural diagram showing the position of the support plate of the present invention; Figure 5 This is a structural diagram of the motor of the present invention; Figure 6 This is a structural diagram of the fixing component of the present invention; Figure 7 This is a side sectional view of the sliding seat of the present invention; Figure 8 This is a diagram showing the position of the electromagnet assembly of the present invention; Figure 9 This is a cross-sectional view of the fixing plate of the present invention; Figure 10 This is a structural diagram of the connecting plate of the present invention; Figure 11 This is an exploded view of the sliding seat of the present invention; Figure 12This is a schematic diagram of the combined state of the sliding sleeve of the present invention; Figure 13 This is a schematic diagram showing the disassembled state of the sliding sleeve of the present invention; Figure 14 This is a partial structural cross-sectional view of the support plate of the present invention; Figure 15 This is a state diagram of the guide vane before its configuration is changed according to the present invention; Figure 16 This is a state diagram of the guide plate after switching its form according to the present invention.

[0019] In the diagram: 1. Housing; 11. Exhaust pipe; 12. Guide rail; 13. Moving seat; 14. Mounting shaft; 15. Pneumatic lever; 16. Support plate; 17. Air nozzle; 18. Mounting rod; 19. Atomizing nozzle; 2. Guide plate; 21. Threaded rod; 22. Motor; 23. Cylinder; 231. Piston rod; 24. Sliding seat; 25. Fixing plate; 26. Chuck 1; 27. Connecting plate 1; 28. Magnet 1; 29. ​​Chuck 2; 2 10. Connecting plate two; 211. Magnet two; 212. Electromagnet assembly; 3. Sliding sleeve; 31. Sliding rod; 32. Guide rod; 33. Inclined magnet; 34. Electromagnet one; 35. Electromagnet two; 4. Push rod; 41. Push plate; 42. Limiting rod; 43. Spring; 44. Mounting plate; 45. Guide plate; 46. Fixed shaft; 47. Inclined block; 48. Limiting post; 49. Arc plate; 410. Sliding block; 411. Extension plate. Detailed Implementation

[0020] 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.

[0021] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0022] Please see Figures 1 to 3 The present invention provides the following technical solutions: Example 1: A rapid cooling device for casting engineering machinery parts includes a housing 1 with an exhaust pipe 11 fixed to the top and an air inlet pipe fixed to the back. The device can transport the engineering machinery castings to be cooled to a guide rail 12 and a moving base 13 within the housing 1. A cooling unit is installed inside the housing 1 to cool the engineering machinery castings. The cooling unit includes: One end of the mounting shaft 14 is movably mounted on the top of the movable seat 13 via a bearing. One end of the pneumatic lever 15 is fixedly mounted on the side wall of the mounting shaft 14. The bottom of the support plate 16 is fixedly mounted on the top of the mounting shaft 14. The nozzle 17 is fixedly mounted inside the housing 1 via a positioning plate. The nozzle 17 is used to blow out high-pressure airflow to drive the pneumatic lever 15 to rotate around the mounting shaft 14. The number of nozzles 17 can be increased as needed. The atomizing nozzle 19 is mounted inside the housing 1 via a mounting rod 18. The atomizing nozzle 19 can spray atomized cooling water to cool the engineering machinery castings.

[0023] In use, the engineering machinery casting to be cooled is installed on the support plate 16. The moving base 13 drives the support plate 16 and the engineering machinery casting to move along the guide rail 12 into the housing 1. The mounting rod 18 provides support for the atomizing nozzle 19. When the moving base 13 moves along the guide rail 12 to the position of area a, the movement is paused, and water is supplied to the atomizing nozzle 19 in area a. The atomizing nozzle 19 in area a provides initial cooling to the engineering machinery casting on the support plate 16, thereby slightly reducing the temperature of the engineering machinery casting. Then, the water supply to the atomizing nozzle 19 in area a is stopped, and the moving base 13 is controlled to continue moving along the guide rail. 12 moves to area b and supplies water to the atomizing nozzle 19 in area b. The atomizing nozzle 19 in area b performs secondary cooling on the engineering machinery casting on the support plate 16. After a period of time, the water supply to the atomizing nozzle 19 in area b is stopped, and the moving seat 13 is controlled to continue moving along the guide rail 12 to area c and supply water to the atomizing nozzle 19 in area c. The atomizing nozzle 19 in area c performs final cooling on the engineering machinery casting on the support plate 16 until the engineering machinery casting is reduced to the target temperature. Then the water supply to the atomizing nozzle 19 in area c is stopped, and the moving seat 13 is controlled to move out of the housing 1 along the guide rail 12. During the cooling process, the temperature of the engineering machinery casting is detected in real time by a temperature sensor installed in the housing 1, and high-pressure air is ejected through the nozzle 17 to impact the pneumatic lever 15, so that the pneumatic lever 15 drives the mounting shaft 14 to rotate slowly around the mounting shaft 14 as the axis, so that the mounting shaft 14 can drive the engineering machinery casting to rotate slowly and synchronously through the support plate 16. The water temperature sprayed from the atomizing nozzle 19 in regions a, b, and c decreases, with the highest water temperature sprayed in region a. The water volume sprayed from the atomizing nozzle 19 in regions a and b increases, with the lowest water volume sprayed in region a. The water volume sprayed in regions b and c can be the same, or region b can have more water than region c, or region b can have less water than region c. The orientation and tilt angle of the atomizing nozzle 19 in each region are adjustable.

[0024] In another embodiment, distinct from the aforementioned embodiments, a bag filter is connected to the exhaust pipe 11. During the cooling process of the engineering machinery castings, the bag filter extracts the dust and water vapor generated inside the casing 1. At the same time, a gas drying device is installed on the dust removal pipe, so that the water vapor and dust are dried and heated by the gas drying device before entering the bag filter. Part of the dried high-temperature air is transported back into the casing 1 through the air inlet pipe on the back of the casing 1 to perform drying and dehumidification operations inside the casing 1. The other part is transported to the water tank through the heat exchange pipe, where the water in the water tank is heated in sections. The heated water is then transported to the atomizing nozzles 19 in the three areas a, b, and c through the water supply pipe as needed.

[0025] In another embodiment, which differs from the aforementioned embodiment, the high-temperature dry air is divided into three parts. The third part of the high-temperature dry air can be directly delivered to the engineering machinery casting that is about to enter the housing 1 for cooling. The high-temperature dry air is used to perform preliminary cooling on the engineering machinery casting. Then, the engineering machinery casting enters the housing 1 for graded cooling.

[0026] Please see Figures 4 to 10 The present invention provides the following technical solutions: Example 2, the technical solution of this example, which differs from the previous examples, includes: a clamping assembly for fixing the engineering machinery casting to be cooled is provided on the movable base 13, the clamping assembly including: The bottom of the guide plate 2 is fixedly installed on the top of the support plate 16. The guide plate 2 is slidably sleeved on the outside of the sliding seat 24. The guide plate 2 is used to limit the movement direction of the sliding seat 24. The bottom of the threaded rod 21 is movably installed on the top of the support plate 16 through a bearing. The threaded rod 21 and the sliding seat 24 are threadedly engaged. The output end of the motor 22 is fixedly installed on the top of the threaded rod 21. The motor 22 is fixedly installed on the top of the guide plate 2 through a motor housing. The motor 22 can drive the threaded rod 21 to rotate and change the height of the sliding seat 24. The cylinder 23 is fixedly connected to the fixed plate 25 through the piston rod 231. The cylinder 23 can drive the fixed plate 25 to move and fix the engineering machinery casting. The sliding seat 24 slides through the piston rod 231. The sliding seat 24 can change the height of the fixed plate 25 under the action of external force. The fixed plate 25 is located above the moving seat 13. One end of the chuck 26 slides through. Inside the fixed plate 25, chuck 26 is used to fix the engineering machinery casting to be cooled. The side wall of connecting plate 27 is fixedly installed on the other end of chuck 26. Connecting plate 27 slides through the fixed plate 25. The side wall of magnet 28 is fixedly installed on connecting plate 27 and located outside the fixed plate 25. One end of chuck 29 slides out from inside the fixed plate 25. Chuck 29 is used to change the clamping position of the engineering machinery casting. The side wall of connecting plate 210 is fixedly installed on chuck 29. Connecting plate 210 slides through the fixed plate 25. The side wall of magnet 211 is fixedly installed on connecting plate 210 and located outside the fixed plate 25. One end of electromagnet assembly 212 is fixedly installed on the fixed plate 25. Electromagnet assembly 212 magnetically engages with magnet 28 and magnet 211 to change the position of chuck 26 and chuck 29.

[0027] In use, the guide plate 2 guides and limits the sliding seat 24. At the same time, the threaded rod 21 is threaded with the sliding seat 24, so that the motor 22 drives the threaded rod 21 to rotate, which can drive the sliding seat 24 to move vertically along the guide plate 2. Meanwhile, the piston rod 231 of the cylinder 23 slides out from the sliding seat 24, and the cylinder 23 is fixedly installed on the sliding seat 24. The engineering machinery casting to be cooled is placed between the two guide plates 2. The cylinder 23 drives the piston rod 231 to move, so that the piston rod 231 drives the fixed plate 25 to move. The fixed plate 25 drives the chuck 26 to move, so that the chuck 26 on one side of the cylinder 23 and the chuck 26 on the other side cooperate to clamp and fix the engineering machinery casting. After installation, the lowest part of the engineering machinery casting does not directly contact the top of the support plate 16. As the engineering machinery casting is driven by the moving seat 13 to enter the three cooling zones for cooling, the electromagnet group 212 is energized and its magnetism is switched, so that the magnetism between the electromagnet group 212 and the first magnet 28 changes to mutual repulsion, while the magnetism between the electromagnet group 212 and the second magnet 211 changes to mutual attraction. This causes the first magnet 28 to drive the first chuck 26 to retract towards the guide plate 2 through the connecting plate 27, and the second magnet 211 to drive the second chuck 29 to extend away from the guide plate 2 through the connecting plate 210. This changes the clamping of the engineering machinery casting from the first chuck 26 to the second chuck 29, and the clamping is switched back and forth continuously to avoid the situation where the clamping position remains unchanged during the cooling process, resulting in insufficient cooling of the shielded area. Furthermore, the electromagnet group 212 can be set as two electromagnets, corresponding to magnet 1 28 and magnet 2 211 respectively. During the switching of the clamping position, the chuck of the latter group is first brought into contact with the engineering machinery casting, and then the magnetic change is used to control the retraction of the chuck of the former group. After a pause of 2-4 seconds, the switching is repeated.

[0028] Please see Figures 11 to 16 The present invention provides the following technical solutions: Example 3, the technical solution of this example, which differs from the previous examples, includes: a tilting component for changing the angle of the engineering machinery casting and a guiding component for changing the distribution of water mist in the area. The tilting component includes: One end of the sliding sleeve 3 is fixedly installed on the fixed plate 25. One end of the sliding rod 31 slides through the sliding sleeve 3. The sliding rod 31 is used to limit the deflection angle of the sliding sleeve 3. The guide rod 32 is arc-shaped. Both ends of the guide rod 32 are fixedly installed on the sliding seat 24. One end of the guide rod 32 slides out from the sliding rod 31. The guide rod 32 is used to limit the movement direction of the sliding rod 31. The bottom of the tilting magnet 33 is fixedly installed on the top of the sliding rod 31. The bottom of the electromagnet 1 34 is fixedly installed on the top of the sliding seat 24. The side wall of the electromagnet 2 35 is fixedly installed on the sliding seat 24. The magnetic cooperation between the electromagnet 2 35, the electromagnet 1 34, and the tilting magnet 33 changes the angle of the fixed plate 25. The diversion component includes: The top of the push rod 4 is fixedly installed at the bottom of the fixed plate 25, and the push rod 4 is L-shaped. The side wall of the push plate 41 slides against the push rod 4. One side of the push plate 41 is provided with an inclined surface. One end of the limiting rod 42 slides through the push plate 41. The limiting rod 42 is used to limit the movement direction of the push plate 41. One end of the spring 43 is fixedly installed on the push plate 41. The bottom of the mounting plate 44 is fixedly installed on the top of the support plate 16. The side wall of the mounting plate 44 is fixedly connected to the other end of the limiting rod 42. The other end of the spring 43 is fixed on the mounting plate 44. The side of the guide plate 45 is hinged to the support plate 16 through the fixed shaft 46 and the torsion spring. The bottom of the inclined block 47 is fixedly installed on the top of the guide plate 45. One end of the inclined block 47 is provided with an inclined surface. The inclined surface of the inclined block 47 slides and adapts to the inclined surface of the push plate 41. The inclined block 47 can change the angle of the guide plate 45 under the drive of the push plate 41. One end of the limiting post 48 is fixedly installed on the side wall of the guide plate 45, and the other end of the limiting post 48 is slidably inserted into the support plate 16. One end of the arc plate 49 is fixedly installed on the bottom of the support plate 16, and the arc plate 49 is slidably sleeved on the outside of the limiting post 48. The side wall of the extension plate 411 is slidably abutted against the guide plate 45. The extension plate 411 is used to cooperate with the guide plate 45 to change the distribution of water mist in the area. One end of the sliding block 410 is fixedly installed on the extension plate 411, and the other end of the sliding block 410 is slidably inserted into the support plate 16.

[0029] During use, as the engineering machinery casting is cooled in three cooling zones, the clamping position continuously changes and the casting slowly rotates around the mounting shaft 14. By controlling the magnetic switching of electromagnet 1 34 and electromagnet 2 35, the magnetic field of electromagnet 1 34 and tilting magnet 33 is changed. Figure 13 The attraction shown switches to repulsion, and simultaneously the magnetism of electromagnet 2 35 and tilted magnet 33 changes from... Figure 13 The mutual repulsion shown is switched to mutual attraction, so that the tilted magnet 33 moves under the combined action of magnetic attraction and mutual repulsion. Through the sliding cooperation between the guide rod 32 and the sliding rod 31, the sliding rod 31 can be flipped along the guide rod 32 under the action of magnetic force. The sliding rod 31 drives the sliding sleeve 3 to move synchronously, and the sliding sleeve 3 drives the fixed plate 25 to flip synchronously, so that the fixed plate 25 drives the engineering machinery casting to flip and tilt, so that the bottom of the engineering machinery casting faces the side and upward. As the fixed plate 25 tilts and flips, it drives the push rod 4 to move. The push rod 4 then pushes the push plate 41 to move. Through the sliding engagement between the push plate 41 and the limiting rod 42, the push plate 41 can slide linearly along the limiting rod 42 under the action of external force. The push plate 41 drives the inclined block 47 to move, causing the inclined block 47 to drive the guide plate 45 to flip downward around the fixed shaft 46. The guide plate 45 drives the limiting post 48 to move. The limiting post 48 slides with the arc plate 49, causing the limiting post 48 to limit the guide plate 45 in turn. At the same time, the expansion plate 411 slides away from the support plate 16. The sliding block 410 slides with the support plate 16, thereby guiding the sliding block 410. Finally, the guide plate 45 and the expansion plate 411 move away from the support plate 16. Figure 15 The status shown has been switched to Figure 16 In the state shown, the guide plate 45 and the expansion plate 411 form a "narrow alley" to introduce part of the airflow that is sprayed out by the lower jet nozzle 17 and impacts the pneumatic lever 15 into the upper part of the support plate 16, thereby driving part of the water mist around the engineering machinery casting to the bottom area after the engineering machinery casting is tilted, so that the cooling is more sufficient and uniform. Furthermore, different operating frequencies can be set for the three cooling zones according to different temperature ranges: First high-temperature zone: Rotate and swing slowly to avoid rapid cooling; Second zone, medium temperature section: moderately accelerate rotation and oscillation to enhance cooling; The third low-temperature zone: high-frequency rotation and oscillation ensure uniform drying, achieve coordinated control of cooling rhythm and clamping action, and optimize the cooling curve.

[0030] This invention also provides a cooling method suitable for a rapid cooling device used in casting engineering machinery castings, comprising the following steps: S1. The engineering machinery casting to be cooled is mounted on the moving base 13 using the clamping assembly; S2. The control moving seat 13 drives the engineering machinery casting along the guide rail 12 into the housing 1, and the atomizing nozzle 19 sprays water mist to cool the engineering machinery casting. S3. During the cooling process, the tilting component changes the angle of the engineering machinery casting, and in conjunction with the flow guiding component, changes the water mist distribution in the lower half of the engineering machinery casting. S4. Remove the cooled construction machinery casting and install the next construction machinery casting to be cooled. Repeat steps S1-S3.

[0031] The range of angle variation for engineering machinery castings is between 0 and 20°.

[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Parallelism: The parallelism defined in this application is not limited to absolute parallelism. This definition of parallelism can be understood as basic parallelism. It allows for situations where the parallelism is not absolute due to factors such as assembly tolerance, design tolerance, and structural flatness. It also allows for errors within a small angular range, such as within 10 degrees of assembly error. These can all be considered as parallel relationships.

[0035] Perpendicularity: The perpendicularity defined in this application is not limited to an absolute perpendicular intersection (with an included angle of 90 degrees). It is permissible for non-absolute perpendicular intersections caused by factors such as assembly tolerances, design tolerances, and structural flatness. It is permissible for errors within a small angular range, such as an assembly error range of 80 to 100 degrees, which can all be understood as a perpendicular relationship.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid cooling device for casting engineering machinery castings, comprising a housing (1) with an exhaust pipe (11) fixed at the top and an intake pipe fixed at the back, a guide rail (12) for conveying the engineering machinery castings to be cooled into the housing (1), and a movable seat (13), characterized in that, The housing (1) is equipped with a cooling unit for cooling engineering machinery castings. The movable base (13) is equipped with a clamping assembly for fixing the engineering machinery castings to be cooled, a tilting assembly for changing the angle of the engineering machinery castings, and a guide assembly for changing the distribution of water mist in the area. The cooling unit includes: The mounting shaft (14) is movably mounted on the top of the movable seat (13) at one end; A pneumatic lever (15) is fixed at one end to the side wall of the mounting shaft (14); The support plate (16) is fixed at the bottom to the top of the mounting shaft (14); The jet nozzle (17) is fixed inside the housing (1) by the positioning plate and blows out a high-pressure airflow to drive the pneumatic lever (15) to rotate around the mounting shaft (14); The atomizing nozzle (19) is installed inside the housing (1) via the mounting rod (18) and sprays atomized cooling water to cool the engineering machinery castings; The clamping assembly includes: The fixed plate (25) is located above the movable base (13); The first chuck (26) slides through the fixed plate (25) to fix the engineering machinery casting to be cooled; The second chuck (29) slides out from the fixed plate (25) at one end to change the clamping position of the engineering machinery casting.

2. The rapid cooling device for casting engineering machinery castings according to claim 1, characterized in that, The clamping assembly also includes: The cylinder (23) is fixed between the piston rod (231) and the fixed plate (25), and drives the fixed plate (25) to move to fix the engineering machinery casting; The sliding seat (24) slides through the piston rod (231) and changes the height of the fixed plate (25) under the action of external force.

3. The rapid cooling device for casting engineering machinery castings according to claim 2, characterized in that, The clamping assembly also includes: The guide plate (2) is fixed at the top of the support plate (16) and is slidably sleeved on the outside of the sliding seat (24) to restrict the movement direction of the sliding seat (24); The threaded rod (21) is movably mounted on the top of the support plate (16) and is threadedly engaged with the sliding seat (24); The motor (22) has its output end fixed to the top of the threaded rod (21) and drives the threaded rod (21) to rotate, changing the height of the sliding seat (24).

4. The rapid cooling device for casting engineering machinery castings according to claim 1, characterized in that, The clamping assembly also includes: Connecting plate 1 (27) is fixed on clamp 1 (26) and slides through the fixing plate (25); Magnet 1 (28) is fixed on connecting plate 1 (27); Connecting plate 2 (210) is fixed on clamp 2 (29) and slides through the fixed plate (25); Magnet 2 (211) is fixed on connecting plate 2 (210); The electromagnet assembly (212) is fixed on the fixed plate (25) and magnetically interacts with magnet one (28) and magnet two (211) to change the position of chuck one (26) and chuck two (29).

5. A rapid cooling device for casting engineering machinery castings according to claim 1, characterized in that, The tilting component includes: The sliding sleeve (3) is fixed at one end to the fixed plate (25); The sliding rod (31) has one end slidably inserted into the sliding sleeve (3) to limit the deflection angle of the sliding sleeve (3); The guide rod (32) is fixed at both ends to the sliding seat (24) and slides out from the sliding rod (31) to restrict the movement direction of the sliding rod (31); An inclined magnet (33) is fixed at the bottom to the top of a sliding rod (31); Electromagnet 1 (34) is fixed at the bottom to the top of the sliding seat (24); Electromagnet 2 (35) has its sidewall fixed on the sliding seat (24), and its magnetic interaction with electromagnet 1 (34) and tilting magnet (33) changes the angle of the fixed plate (25).

6. A rapid cooling device for casting engineering machinery castings according to claim 1, characterized in that, The flow guiding component includes: The push rod (4) is fixed at the bottom of the fixing plate (25) and is L-shaped. The push plate (41) slides against the push rod (4) on its side wall; The limiting rod (42) has one end slidably inserted into the push plate (41) to limit the movement direction of the push plate (41); Spring (43), one end of which is fixed to push plate (41); The mounting plate (44) is fixed at the bottom to the top of the support plate (16), the side wall is fixed to the other end of the limiting rod (42), and the other end of the spring (43) is fixed to the mounting plate (44).

7. A rapid cooling device for casting engineering machinery castings according to claim 6, characterized in that, The flow guiding component also includes: The guide plate (45) is hinged to the support plate (16) via a fixed shaft (46) and a torsion spring; The inclined block (47) is fixed at the top of the guide plate (45) at the bottom and has an inclined surface at one end. Under the drive of the push plate (41), the angle of the guide plate (45) is changed. The limiting post (48) is fixed at one end to the side wall of the guide plate (45) and the other end slides through the support plate (16); The arc-shaped plate (49) is fixed at one end to the bottom of the support plate (16) and is slidably sleeved outside the limiting post (48).

8. A rapid cooling device for casting engineering machinery castings according to claim 7, characterized in that, The flow guiding component also includes: The extension plate (411) slides against the guide plate (45) and works with the guide plate (45) to change the distribution of water mist in the area; The sliding block (410) is fixed at one end to the extension plate (411) and slidably inserted into the support plate (16) at the other end.

9. A cooling method applicable to the rapid cooling device for casting engineering machinery castings as described in any one of claims 1-8, characterized in that, Includes the following steps: S1. The engineering machinery casting to be cooled is mounted on the moving base (13) using the clamping assembly; S2. The control moving seat (13) drives the engineering machinery casting along the guide rail (12) into the machine housing (1), and the atomizing nozzle (19) sprays water mist to cool the engineering machinery casting; S3. During the cooling process, the tilting component changes the angle of the engineering machinery casting, and in conjunction with the flow guiding component, changes the water mist distribution in the lower half of the engineering machinery casting. S4. Remove the cooled construction machinery casting and install the next construction machinery casting to be cooled. Repeat steps S1-S3.

10. The cooling method of the rapid cooling device for casting engineering machinery castings according to claim 9, characterized in that: The range of angle variation for engineering machinery castings is between 0 and 20°.

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