GIS special-shaped aluminum alloy machining cooling device

Abstract

The invention relates to the technical field of aluminum alloy casting, in particular to a GIS special-shaped aluminum alloy machining cooling device. Comprising a box body and a rotating hole penetrating through the box body front and back; a rotating sleeve is rotationally connected into the rotating hole; a mold is mounted in the rotating sleeve; the rear end of the rotating sleeve is fixedly connected with an L-shaped outer gear ring; the outer gear ring extends to the outer side of the rotating hole and is in engaged transmission with a gear; the gear is driven by a motor; the box cover covers the top of the box body; a liquid spraying pipe close to the front inner wall of the box body is arranged above the top of the rotating sleeve; in the front-back direction, due to the fact that spraying of cooling liquid is increased at the thick position of a centrifugal casting and spraying of cooling liquid is reduced at the thin position of the casting, all the positions of the casting in the axial direction are cooled more evenly, the quality of the formed casting is improved, in addition, flowing of the cooling liquid is stopped at the position without a workpiece, and the casting quality is improved. The purposes of cooling liquid saving and energy saving are achieved.

Description

Technical Field

[0001] This invention relates to the field of aluminum alloy casting technology, specifically a GIS-based cooling device for processing irregular-shaped aluminum alloys. Background Technology

[0002] Gas-insulated metal-enclosed switchgear (GIS) is a core set of equipment for high-voltage, ultra-high-voltage, and extra-high-voltage power transmission and transformation projects. It has outstanding advantages such as compact structure, small footprint, excellent insulation performance, high operational stability, and long maintenance cycle. It is widely used in key scenarios such as power grid hub substations, industrial power supply systems, and new energy grid connection. Its operational reliability is directly related to the safe and stable power supply of the entire power transmission and transformation network. As key structural components of GIS equipment, core components such as the external sealing shell, internal insulating support cylinder, and gas chamber partition cylinder are generally made of barrel-shaped aluminum alloy casting due to the multiple functional requirements of the equipment's overall compact and irregular layout, uniform electric field distribution, and gas sealing protection. These components are mostly annular cylindrical structures and generally have the structural feature of uneven wall thickness distribution in the axial direction.

[0003] Currently, the forming process for this type of barrel-shaped irregular ring-shaped aluminum alloy component is mainly centrifugal casting. Centrifugal casting, as a commonly used process for precision casting of aluminum alloys, works by pouring molten aluminum alloy into a high-speed rotating ring mold. Under centrifugal force, the molten metal adheres evenly to the inner wall of the mold and is then gradually cooled and solidified to form a ring-shaped cylindrical casting. In the centrifugal casting process, the cooling process is a key step in controlling the internal stress, grain structure, and forming accuracy of the casting. Existing conventional centrifugal casting cooling methods are mostly indirect cooling, that is, heat dissipation is conducted by spraying water onto the outer wall of the rotating mold, relying on the mold to transfer heat. Cooling is achieved by delivering coolant to the casting, but existing general-purpose cooling devices have obvious technical defects and cannot be adapted to the processing characteristics of GIS barrel-shaped aluminum alloy components: the water spray position and spray volume of existing cooling devices are fixed, and the cooling coverage and cooling intensity cannot be adjusted. Given the structural characteristics of the uneven wall thickness of the ring casting, it is impossible to strengthen the cooling of the thick-walled area and weaken the cooling of the thin-walled area. This results in the thick-walled area cooling too slowly, leading to problems such as coarse grain structure, internal residual stress concentration, deformation and cracking. On the other hand, the thin-walled area cools too quickly and produces cold cracks, affecting the dimensional accuracy and mechanical properties of the casting. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention proposes a GIS-based cooling device for processing irregular aluminum alloys. In the front-to-back direction, the invention increases the amount of coolant sprayed out in the thicker parts of the centrifugally cast part and reduces the amount of coolant sprayed out in the thinner parts of the cast part, thereby making the cooling of the casting part more uniform in all axial directions and improving the quality of the cast part after forming. In addition, the coolant flow is stopped at the position where there is no workpiece, thereby saving coolant and achieving the purpose of energy saving.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: A GIS-type aluminum alloy processing cooling device includes a housing and a rotating hole extending through the front and rear of the housing; a rotating sleeve is rotatably connected within the rotating hole; a mold is installed within the rotating sleeve; an L-shaped external gear ring is fixedly connected to the rear end of the rotating sleeve; the external gear ring extends to the outside of the rotating hole and meshes with a gear; the gear is driven by a motor; a housing cover is closed on the top of the housing; a spray pipe is provided above the top of the rotating sleeve and fixedly connected to the front inner wall of the housing; the rear end of the spray pipe passes through the housing and is fixedly connected to a first liquid pump; the first liquid pump is connected to a cooling source assembly; a spray groove corresponding to the rotating sleeve is provided through the downward-facing inner wall of the spray pipe; the length direction of the spray groove is the front-rear direction; a blocking ring with a notch is rotatably connected to the outer wall of the spray pipe; there are multiple blocking rings, which are mutually rotating and sealingly contacting each other; the total length of the multiple blocking rings is adapted to the total length of the spray groove; the blocking ring can rotate around the spray pipe.

[0006] Preferably, the top outer wall of the spray pipe is provided with a groove along the axial direction; the shielding ring is provided with a locking groove running vertically through it; a T-shaped locking piece is slidably connected to the locking groove; the lateral part of the locking piece is connected to the outer wall of the shielding ring by a first tension spring; and multiple grooves are distributed circumferentially at intervals on the top of the spray pipe.

[0007] Preferably, the inner wall of the shielding ring is provided with an arc-shaped groove; an arc-shaped block is movably connected in the arc-shaped groove; and the arc-shaped block is fixedly connected to the outer wall of the spray pipe.

[0008] Preferably, the outer wall of the rotating sleeve is provided with semi-arc plates on the left and right sides respectively; a cooling gap is formed between the inner wall of the semi-arc plates and the inner wall of the rotating sleeve; the upper end of the two semi-arc plates forms a liquid inlet gap, and the lower end forms a liquid outlet gap; the liquid inlet gap corresponds to the liquid spray groove; an arc-shaped guide plate is fixedly connected to the upper end of the semi-arc plates; the two guide plates are symmetrically attached to the outer surface of the shielding ring; the upper end of the two guide plates has a gap for the locking plate to rotate; the front and rear ends of the guide plates are fixedly connected to the inner wall of the box.

[0009] Preferably, the cooling gap is provided with multiple cooling rings spaced apart in the front-to-back direction; the inner edge of the cooling ring is in movable contact with the outer surface of the rotating sleeve, and the outer edge of the cooling ring is fixedly connected to the inner wall of the semi-arc plate.

[0010] Preferably, a second liquid pump is provided inside the housing and below the rotating sleeve; one end of the second liquid pump is fixedly connected to the liquid outlet gap through a collection box, and the other end is fixedly connected to the liquid outlet pipe.

[0011] Preferably, the inner side of the rotating sleeve and the rear end of the mold are in sealing contact with the rear retaining ring; the rear retaining ring is in sliding sealing contact with the inner wall of the rotating sleeve; the front surface and the arc-shaped outer wall of the rear retaining ring are connected by an L-shaped groove; an L-shaped strip is provided in the L-shaped groove; the inner wall of the rotating sleeve is provided with an axial groove in the front-rear direction; one end of the L-shaped strip extends into the axial groove; the rear surface of the mold is provided with an installation groove for inserting the other end of the L-shaped strip; the arc-shaped outer wall of the mold is provided with a stepped threaded hole communicating with the installation groove; the end of the L-shaped strip inserted into the installation groove is provided with an installation hole corresponding to the threaded hole; a bolt passing through the installation hole is threadedly connected in the threaded hole; a front retaining ring is provided at the front position of the inner wall of the mold; an insertion hole is provided at the front position of the inner wall of the mold; a perforated lug is fixedly connected to the front surface of the front retaining ring; the insertion hole and the lug are inserted together into a pin.

[0012] Preferably, the L-shaped strip and the L-shaped groove slide radially in the rear retaining ring; the inner wall of the axial groove is provided with a track groove; the track groove is divided into a rear straight section and a front inclined section that are interconnected; the front inclined section of the track groove moves away from the center of the mold from back to front; a track bar that is fixedly connected to the end of the L-shaped strip is movably connected in the track groove; the mold is composed of multiple circumferentially evenly distributed contacting mold pieces; the mold pieces are connected to the L-shaped strip.

[0013] Preferably, the box body is connected to a sliding seat through the front and back and fixedly connected; the upper sliding seat is slidably connected to an upper sliding seat on its upper surface; the upper sliding seat and the sliding seat are located below the rotating sleeve; the wedge-shaped groove on the lower surface of the upper sliding seat is slidably connected to the wedge-shaped strip on the upper surface of the sliding seat; the upper sliding seat passes through the front side of the box body and is fixedly connected to a support seat; a buffer groove is provided on the upper surface of the support seat; a buffer block is slidably connected to the buffer groove up and down; the buffer block and the bottom of the buffer groove are connected by a spring; a stepped groove is provided on the rear position of the upper surface of the buffer block; the front end of the mold is placed in the stepped groove.

[0014] Preferably, the upper slide is connected to the rear inner wall of the housing by a second tension spring.

[0015] The beneficial effects of this invention are as follows: 1. In the front-to-back direction, the present invention increases the amount of coolant sprayed in the thicker parts of the casting and reduces the amount of coolant sprayed in the thinner parts of the casting, thereby making the cooling of the casting more uniform in all parts along the axial direction, thus improving the quality of the casting after molding. In addition, the coolant flow is stopped in the areas where there is no workpiece, thereby saving coolant and achieving the purpose of energy saving.

[0016] 2. In this invention, the end of the locking piece is inserted into the corresponding slot to lock the shielding ring circumferentially. This ensures that the opening of the spray tank will not change due to the circumferential rotation of the shielding ring after the size adjustment is completed, making the opening of the spray tank more stable after adjustment.

[0017] 3. This invention achieves automatic outward expansion when the mold moves forward through the linkage of the mold parting, L-shaped strip, and track groove, creating a gap between the mold and the casting, which greatly reduces the difficulty of demolding and improves demolding efficiency. The mold parting is evenly distributed around the circumference, ensuring the molding accuracy of the mold. At the same time, the linkage structure is simple and reliable, does not affect the stability of the mold during centrifugal casting, further optimizes the unloading process, and adapts to the high-efficiency processing requirements of GIS irregular aluminum alloy castings. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a perspective view of the present invention; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 yes Figure 1 A stereoscopic view from the rear; Figure 4 This is a diagram showing the location of the housing and the inner spray pipe in this invention; Figure 5 yes Figure 4 Enlarged view of point B in the middle; Figure 6 This is a position diagram of the second tension spring in this invention; Figure 7 This is a perspective view of the spray pipe, rotating sleeve, and mold in this invention; Figure 8 This is a structural diagram of the arc-shaped plate, guide plate, and cooling ring in this invention; Figure 9 This is a perspective view of the mold in this invention; Figure 10 This is a perspective view of the rear retaining ring in this invention; Figure 11 This is a cross-sectional view of the rotating sleeve and the mold in this invention; Figure 12 This is a perspective view of the spray pipe and the shielding ring in this invention; Figure 13 This is a cross-sectional view of the spray pipe and the shielding ring in this invention.

[0020] In the diagram: 1. Box body, 11. Rotary hole, 12. Box cover, 2. Rotary sleeve, 21. External gear ring, 22. Gear, 23. Motor, 24. Axial groove, 25. Track groove, 3. Mold, 31. Mounting groove, 32. Threaded hole, 34. Bolt, 35. Insertion hole, 36. Mold splitting, 4. Spray pipe, 41. First liquid pump, 42. Spray groove, 43. Shielding ring, 431. Arc groove, 432. Notch, 44. Slot, 45. Locking groove, 46. Locking piece, 47. First tension spring, 48. Semi-arc plate, 51. Guide plate, 52. Cooling ring, 53. Second liquid pump, 54. Collection box, 55. Outlet pipe, 6. Rear retaining ring, 61. L-shaped groove, 62. Track bar, 63. Mounting hole, 64. Front retaining ring, 71. Insert ear, 72. Lower slide seat, 81. Upper slide seat, 82. Support seat, 83. Buffer groove, 84. Buffer block, 86. Step groove, 87. Second tension spring. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] like Figures 1 to 13 As shown, the present invention includes the following embodiments: Example 1: A GIS-based irregular aluminum alloy processing cooling device includes a housing 1 and a rotating hole 11 extending through the front and rear of the housing 1; a rotating sleeve 2 is rotatably connected inside the rotating hole 11; a mold 3 is installed inside the rotating sleeve 2; an L-shaped external gear ring 21 is fixedly connected to the rear end of the rotating sleeve 2; the external gear ring 21 extends to the outside of the rotating hole 11 and meshes with a gear 22; the gear 22 is driven by a motor 23; a housing cover 12 covers the top of the housing 1; a spray pipe 4 is provided above the top of the rotating sleeve 2 and is fixedly connected to the front inner wall of the housing 1; The rear end of the spray pipe 4 passes through the housing 1 and is fixedly connected to the first liquid pump 41; the first liquid pump 41 is connected to the cooling source assembly; the inner wall of the spray pipe 4 is provided with a spray groove 42 corresponding to the rotating sleeve 2; the length direction of the spray groove 42 is the front-to-back direction; the outer wall of the spray pipe 4 is rotatably connected to a shielding ring 43 with a notch 44; there are multiple shielding rings 43, which are arranged to rotate and seal against each other; the total length of the multiple shielding rings 43 is adapted to the total length of the spray groove 42; the shielding rings 43 can rotate around the spray pipe 4.

[0023] Before casting, mold 3 is installed inside rotating sleeve 2. The outer surface of mold 3 is in close contact with the inner wall of rotating sleeve 2 to ensure heat transfer and improve the cooling effect of mold 3. Mold 3 is a rotating body, such as sleeve-shaped. The inner surface of mold 3 is adapted to the casting. A rear retaining ring 6 is provided at the rear end of mold 3. A front retaining ring 7 is movably sealed on the inner side of the front end of mold 3. An insertion hole 35 is provided on the inner wall of mold 3 in front of front retaining ring 7. A pin 72 is inserted into the insertion hole 35 and passes through the lug 71 on front retaining ring 7. The front surface of rear retaining ring 6, the inner wall of mold 3, and the rear surface of front retaining ring 7 form a casting cavity. The thickness of the casting cavity in the axial direction is adapted to the thickness of the casting according to the casting requirements. An annular support and limiting groove is provided on the arc-shaped outer wall of rotating sleeve 2 near the front and rear ends. A limiting wheel is rolled around the support and limiting groove. The limiting wheel is rotatably connected to the housing 1 through a limiting rod to improve the support and positioning effect of rotating sleeve 2.

[0024] The outer casing of motor 23 is fixedly connected to the rear end of housing 1, and the output end of motor 23 is fixedly connected to gear 22. Motor 23 drives gear 22 to rotate external gear ring 21. After the mold 3 is installed in the rotating sleeve 2, the cover 12 is opened, and the blocking ring 43 on the spray pipe 4 is rotated. In the initial state, the notch 44 at the bottom of the blocking ring 43 corresponds to the position of the spray groove 42, so that the spray groove 42 is in a fully open state. As the blocking ring 43 rotates, the notch 44 at the bottom of the blocking ring 43 will gradually be offset from the spray groove 42. The greater the degree of offset between the notch 44 at the bottom of the blocking ring 43 and the spray groove 42, the more the spray groove 42 is blocked, thus making the spray nozzle of the spray groove 42 smaller. The size of the spray nozzle of the spray groove 42 directly affects The amount of coolant sprayed is adjusted by the distribution of the shielding rings 43 along the length of the spray channel 42, so each shielding ring 43 can adjust a section of the opening of the spray channel 42. In the case of differences in the thickness of the casting formed in the casting cavity in the front-back direction, the opening of the corresponding position of the spray channel 42 is adjusted to be smaller for thinner positions and larger for thicker positions, so that the opening size of the spray channel 42 is adapted to the thickness of the casting. For some castings with a shorter axial length in the front-back direction, the notch 44 at the bottom of the shielding ring 43 is completely offset from the spray channel 42 for positions where spraying is not required, so that the spray channel 42 is completely closed for positions where spraying is not required, thereby achieving energy saving.

[0025] After adjusting the size of the spray tank 42 to match the casting, the motor 23 is controlled to rotate. During this rotation, the motor 23 drives the gear 22, which in turn drives the meshing external gear ring 21. The external gear ring 21 then drives the rotating sleeve 2, which rotates within the rotating hole 11. Because the rotating sleeve 2 has annular support and limiting grooves near its front and rear ends on its arc-shaped outer wall, and these grooves are rolled to a limiting wheel, the limiting wheel effectively limits the rotation of the sleeve 2. This allows the sleeve 2 to drive the inner mold 3 to rotate. The rotation of the mold 3 then drives the front retaining ring 7 and the rear retaining ring 6 to rotate, causing the casting cavity to move with the rotation of the sleeve 2. As the molten aluminum alloy is poured into the casting cavity along the inner side of the front retaining ring 7, it flows along the inner wall of the casting cavity under centrifugal force. After feeding is completed, the rotating sleeve 2 drives the mold 3 to rotate continuously. Then, the first liquid pump 41 is controlled to work. The cooling source assembly is used to cool the used coolant for recycling. The first liquid pump 41 will flow the cooled coolant along the spray pipe 4 and finally spray it out along the open spray groove 42. In the front-back direction, the thicker parts of the casting produced by centrifugal casting have more coolant sprayed out, while the thinner parts have less coolant sprayed out. This makes the cooling of each part of the casting more uniform in the axial direction, thereby improving the quality of the casting after molding.

[0026] In addition, the flow of coolant is stopped when there is no workpiece, so as to save coolant and achieve energy saving. After the coolant comes into contact with the outer surface of the rotating sleeve 2, the rotating sleeve 2 can maintain contact with the coolant in the circumferential direction as the rotating sleeve 2 rotates, which improves the contact effect. The liquid aluminum alloy will transfer heat to the rotating sleeve 2 through the mold 3, and the coolant will carry away the heat on the rotating sleeve 2, so as to achieve solidification and molding of the casting.

[0027] Example 2: The top outer wall of the spray pipe 4 is provided with a groove 45 along the axial direction; the shielding ring 43 is provided with a locking groove 46 running vertically through it; a T-shaped locking piece 47 is slidably connected to the locking groove 46; the horizontal part of the locking piece 47 is connected to the outer wall of the shielding ring 43 by a first tension spring 48; a plurality of grooves 45 are distributed circumferentially at intervals on the top of the spray pipe 4.

[0028] In this embodiment, the inner wall of the shielding ring 43 is provided with an arc-shaped groove 431; an arc-shaped block 432 is movably connected in the arc-shaped groove 431; and the arc-shaped block 432 is fixedly connected to the outer wall of the spray pipe 4.

[0029] To improve the stability of the shielding ring 43 around the spray pipe 4, multiple circumferentially distributed slots 45 are provided on the outer wall of the top of the spray pipe 4. Before controlling the shielding ring 43 to rotate around the spray pipe 4, the locking plate 47 is pulled away from the spray pipe 4. The end of the locking plate 47 will overcome the first tension spring 48 and be pulled out from the corresponding slot 45, thereby unlocking the shielding ring 43. Then, the shielding ring 43 is controlled to rotate around the spray pipe 4, changing the misalignment between the bottom notch 44 of the shielding ring 43 and the spray groove 42. After adjusting the circumferential rotation of the shielding ring 43, release the locking plate 47. The first tension spring 48 will pull the locking plate 47 closer to the spray pipe 4. The locking plate 47 will slide along the locking groove 46, and the end of the locking plate 47 will be inserted into the corresponding slot 45, thereby locking the shielding ring 43 circumferentially. This ensures that the opening of the spray tank 42 will not change due to the circumferential rotation of the shielding ring 43 after the size adjustment is completed, making the opening of the spray tank 42 more stable after the adjustment is completed.

[0030] Furthermore, since the arc groove 431 on the inner wall of the shielding ring 43 is movably connected to the arc block 432 which is fixedly connected to the spray pipe 4, the shielding ring 43 can only rotate around the spray pipe 4 and cannot move back and forth, thereby limiting the shielding ring 43 in the front and back directions and keeping the position of the shielding ring 43 constant in the front and back directions of the spray groove 42.

[0031] Example 3: The outer wall of the rotating sleeve 2 is provided with semi-arc plates 5 on the left and right sides respectively; a cooling gap is formed between the inner wall of the semi-arc plate 5 and the inner wall of the rotating sleeve 2; the upper end of the two semi-arc plates 5 forms a liquid inlet gap, and the lower end forms a liquid outlet gap; the liquid inlet gap corresponds to the spray groove 42; an arc-shaped guide plate 51 is fixedly connected to the upper end of the semi-arc plate 5; the two guide plates 51 are symmetrically attached to the outer surface of the shielding ring 43; the front end of the two guide plates 51 is fixedly connected to the connecting plate; the upper end of the two guide plates 51 has a gap for the locking piece 47 to rotate; the front and rear ends of the guide plates 51 are fixedly connected to the inner wall of the box 1.

[0032] In this embodiment, multiple cooling rings 52 are spaced apart in the front-to-back direction inside the cooling gap; the inner edge of the cooling ring 52 is in movable contact with the outer surface of the rotating sleeve 2, and the outer edge of the cooling ring 52 is fixedly connected to the inner wall of the semi-arc plate 5.

[0033] In this embodiment, a second liquid pump 53 is provided inside the housing 1 and below the rotating sleeve 2; one end of the second liquid pump 53 is fixedly connected to the liquid outlet gap through the collection box 54, and the other end is fixedly connected to the liquid outlet pipe 55.

[0034] After adjusting the opening size of the spray tank 42, the first liquid pump 41 delivers the cooled coolant to the spray pipe 4. The coolant is sprayed out along the spray tank 42. At this time, the guide plate 51 at the top of the semi-circular plate 5 plays a guiding role. Since the two guide plates 51 are symmetrically attached to the outer surface of the shielding ring 43, and only a gap is reserved at the upper end for the shielding ring 43 to rotate, the sprayed coolant will be accurately guided by the guide plates 51, and there will be no splashing or loss. Finally, all of it will flow into the liquid inlet gap formed by the upper end of the two semi-circular plates 5. The liquid inlet gap corresponds precisely to the spray tank 42, ensuring that all the coolant can enter the semi-circular plate 5. Within the cooling gap formed between the forming plate 5 and the outer wall of the rotating sleeve 2, the cooling gap allows the coolant to always flow closely against the outer wall of the rotating sleeve 2, achieving wall-mounted cooling, significantly improving heat transfer efficiency, and allowing the rotating sleeve 2 to cool more thoroughly. Furthermore, multiple cooling rings 52 inside the cooling gap divide the overall cooling gap into multiple independent cooling channels. Each independent cooling channel is aligned with the corresponding slot in the front-back direction of the spray tank 42, allowing the coolant sprayed from different positions of the spray tank 42 to enter the corresponding channel respectively, avoiding back-to-back movement, ensuring stable flow in each channel, and ensuring uniform cooling of the final casting.

[0035] After the coolant completes the heat exchange, it flows out along the outlet gap at the lower end of the semi-circular plate 5 and flows into the collection box 54. At this time, the second liquid pump 53 under the rotating sleeve 2 of the housing 1 starts, and the suction force generated by it can draw the coolant away in time, so as to avoid the coolant staying in the cooling gap for too long, which would cause the temperature to rise and the cooling effect to decrease. At the same time, it drives the coolant to flow quickly. Then the coolant is transported to the cooling source component for recycling through the outlet pipe 55. The setting of the guide plate 51 and the cooling ring 52 not only ensures the structural stability and sealing, but also does not affect the normal operation of the rotating sleeve 2 and the shielding ring 43.

[0036] In this embodiment, a dedicated cooling gap is formed by the semi-arc plate 5 enclosing the outer wall of the rotating sleeve 2. This completely changes the problem of coolant splashing and insufficient contact with the rotating sleeve 2 in traditional cooling methods, allowing the coolant to flow closely to the outer wall of the rotating sleeve 2 throughout the process, achieving efficient wall-adhering cooling. This wall-adhering cooling method can maximize the contact area between the coolant and the rotating sleeve 2, accelerate the transfer and dissipation of heat on the surface of the rotating sleeve 2, and thus quickly reduce the temperature of the mold 3, providing a stable temperature environment for the rapid solidification and molding of the casting, and effectively avoiding surface defects of the casting caused by untimely cooling.

[0037] In this embodiment, the cooling ring 52 is spaced back and forth within the cooling gap, dividing the overall cooling gap into multiple independent cooling channels. Each channel is precisely aligned with the corresponding position of the spray tank 42, which effectively prevents coolant of different flow rates from moving back and forth within the cooling gap. This ensures that coolant of different flow rates can flow stably within the corresponding channel after the spray tank 42 is adjusted, thereby ensuring that the cooling intensity at each position in the front and back directions of the rotating sleeve 2 is precisely matched with the thickness of the casting. This achieves uniform cooling of the rotating sleeve 2 and the mold 3, significantly improving the consistency of forming of various parts of the casting and reducing quality problems such as deformation and cracks caused by uneven cooling. In this embodiment, the cooperation between the second liquid pump 53 and the collection box 54 can promptly remove the heated coolant after heat exchange. On the one hand, this prevents the heated coolant from staying in the cooling gap for too long, which would lead to a decrease in cooling effect. On the other hand, it can drive the coolant in the cooling gap to circulate rapidly, further improving the cooling efficiency. At the same time, the coolant is transported to the cooling source component for recycling, realizing resource recycling and reducing cooling costs.

[0038] Example 4: The inner side of the rotating sleeve 2, located at the rear end of the mold 3, is in sealing contact with the rear retaining ring 6; the rear retaining ring 6 is in sliding sealing contact with the inner wall of the rotating sleeve 2; the front surface and the arc-shaped outer wall of the rear retaining ring 6 are connected by an L-shaped groove 61; an L-shaped strip 62 is provided in the L-shaped groove 61; the inner wall of the rotating sleeve 2 is provided with an axial groove 24 in the front-rear direction; one end of the L-shaped strip 62 extends into the axial groove 24; the rear surface of the mold 3 is provided with an installation groove 31 for inserting the other end of the L-shaped strip 62; The outer wall of the mold 3 is provided with a stepped threaded hole 32 that communicates with the mounting groove 31; the L-shaped strip 62 is inserted into the mounting groove 31 and has a mounting hole 64 corresponding to the threaded hole 32 at one end; the threaded hole 32 is internally threaded to a bolt 34 that passes through the mounting hole 64; a front retaining ring 7 is provided at the front position of the inner wall of the mold 3; an insertion hole 35 is provided at the front position of the inner wall of the mold 3; a perforated lug 71 is fixedly connected to the front surface of the front retaining ring 7; the insertion hole 35 and the lug 71 are inserted together into the pin 72.

[0039] During centrifugal casting, the rotating sleeve 2 rotates under the drive of the motor 23, gear 22, and external gear ring 21. Since one end of the L-shaped strip 62 extends into the axial groove 24 on the inner wall of the rotating sleeve 2, the rotation of the rotating sleeve 2 will drive the L-shaped strip 62 to rotate synchronously. The L-shaped strip 62 is connected to the rear retaining ring 6 through the L-shaped groove 61, so the rotation of the L-shaped strip 62 will drive the rear retaining ring 6 to rotate synchronously, so that the rear retaining ring 6 rotates together with the rotating sleeve 2. At the same time, the other end of the L-shaped strip 62 is inserted into the mounting groove 31 on the rear surface of the mold 3 and fixed by bolts 34 passing through the threaded hole 32 and the mounting hole 64. Therefore, the rotation of the L-shaped strip 62 will also drive the mold 3 to rotate synchronously, thereby realizing the synchronous rotation of the rotating sleeve 2, the L-shaped strip 62, the rear retaining ring 6, and the mold 3, ensuring the stable rotation of the mold 3 and the internal casting cavity, and meeting the requirements of centrifugal casting. After the casting has cooled and solidified, it is unloaded. A handle is fixedly connected to the front end of the mold 3. The worker can hook the handle and pull the mold 3 forward as a whole. When the mold 3 moves forward, it will simultaneously drive the front retaining ring 7 on its inner side and the rear retaining ring 6 on its rear side to move forward together. The rear retaining ring 6 then drives one end of the L-shaped strip 62 to slide along the axial groove 24 on the inner wall of the rotating sleeve 2, thereby driving the mold 3 to gradually move out from the inside of the rotating sleeve 2, which is convenient for the subsequent removal of the casting. After the mold 3 is removed, the pin 72 is pulled out from the insertion hole 35 on the inner wall of the mold 3 and the insertion lug 71 of the front retaining ring 7, so that the front retaining ring 7 can be removed from the inside of the mold 3. Then the casting inside the mold 3 can be hooked out or removed directly to complete the unloading. When it is necessary to replace mold 3, simply loosen the bolt 34 in the threaded hole 32 on the arc-shaped outer wall of mold 3, so that the bolt 34 can be removed from the mounting hole 64 and threaded hole 32 of L-shaped strip 62. This will release the L-shaped strip 62 from mold 3. Pull the L-shaped strip 62 out of the mounting groove 31 of mold 3. Then, the old mold 3 can be removed and replaced with a new mold 3 or another mold 3 that is suitable. Then, insert the L-shaped strip 62 back into the mounting groove 31 of the new mold 3 and tighten the bolt 34 to fix it, thus completing the replacement of mold 3.

[0040] Example 5: The L-shaped strip 62 and the L-shaped groove 61 slide radially in the rear retaining ring 6; the inner wall of the axial groove 24 is provided with a track groove 25; the track groove 25 is divided into a rear straight section and a front inclined section that are interconnected; the front inclined section of the track groove 25 moves away from the center of the mold 3 from back to front; a track bar 63 that is fixedly connected to the end of the L-shaped strip 62 is movably connected in the track groove 25; the mold 3 is composed of multiple circumferentially evenly distributed contacting molds 36; the molds 36 are connected to the L-shaped strip 62.

[0041] The mold 3 is composed of multiple circumferentially evenly distributed and mutually sealed mold pieces 36. Each mold piece 36 is connected to an L-shaped strip 62. The L-shaped strip 62 and the L-shaped groove 61 on the rear retaining ring 6 can slide radially along the rear retaining ring 6. The track bar 63 fixedly connected to the end of the L-shaped strip 62 is movably connected to the track groove 25 on the inner wall of the axial groove 24. Before casting, a release agent can be applied to the inside of the mold piece 36 to further reduce the difficulty of subsequent demolding and improve the smoothness of demolding. When unloading the casting after it has cooled and solidified, the pin 72 is first pulled out from the insertion hole 35 on the inner wall of the mold 3 and the perforated lug 71 of the front retaining ring 7. Then, the worker uses a hook to hook the handle at the front end of the mold 3 and pull the mold 3 forward as a whole. Multiple mold pieces 36 move forward with the mold 3, thereby driving the L-shaped strips 62 connected to them to move forward synchronously.

[0042] When the L-shaped bar 62 moves forward, it drives the rear retaining ring 6 forward as well. At the same time, the track bar 63 at the end of the L-shaped bar 62 slides along the rear straight section of the track groove 25 until the mold 36 is completely removed from the rotating sleeve 2. At this moment, the track bar 63 slides to the junction of the rear straight section and the front inclined section of the track groove 25. If the mold 36 is pulled forward, the track bar 63 will enter the front inclined section of the track groove 25 and slide along it. Since the front inclined section gradually moves away from the center of the mold 3 from back to front, the track bar 63 will move away from the center of the mold 3 along the trajectory of the front inclined section. This will drive the L-shaped bar 62 to slide radially along the L-shaped groove 61 of the rear retaining ring 6 and away from the center of the mold 3. When the L-shaped bar 62 moves away from the center of the mold 3, it will drive the mold 36 connected to it to expand outward in sync, so that a gap is formed between the inner side of the assembled mold 3 and the casting. This allows the casting to be easily removed from the mold 3, completing the demolding.

[0043] After demolding is completed, the mold parting 36 is pushed backward as a whole. When the mold parting 36 moves backward, it will drive the rear retaining ring 6 to move backward synchronously. The rear retaining ring 6 will then drive the L-shaped strip 62 to move backward together. The track bar 63 at the end of the L-shaped strip 62 will slide in the opposite direction along the front inclined section of the track groove 25. As the track bar 63 slides, the mold parting 36 will retract towards the center of the mold 3 until multiple mold parts 36 fit together and recombine into a complete mold 3. Continue to push the mold 3 backward, and the track bar 63 will enter the rear straight section from the front inclined section and continue to slide along the rear straight section until the mold 3 moves backward to the limit position, completing the mold 3 return operation, so that the next centrifugal casting operation can be carried out.

[0044] This embodiment achieves automatic outward expansion of the parting mold 36 as it moves forward, creating a gap between the mold 3 and the casting, significantly reducing demolding difficulty and improving demolding efficiency. The parting mold 36 is evenly distributed circumferentially, ensuring the forming accuracy of the mold 3. At the same time, the linkage structure is simple and reliable, does not affect the stability of the mold 3 during centrifugal casting, further optimizes the unloading process, and adapts to the high-efficiency processing requirements of GIS irregular aluminum alloy castings.

[0045] Example 6: The box body 1 is connected to the sliding seat 8 through the front and back and fixedly. The upper sliding seat 81 is slidably connected to the upper surface of the sliding seat 8. The upper sliding seat 81 and the sliding seat 8 are located below the rotating sleeve 2. The wedge-shaped groove on the lower surface of the upper sliding seat 81 is slidably connected to the wedge-shaped strip on the upper surface of the sliding seat 8. The upper sliding seat 81 passes through the front side of the box body 1 and is fixedly connected to the support seat 82. The upper surface of the support seat 82 is provided with a buffer groove 83. The buffer groove 83 is slidably connected to the buffer block 84. The buffer block 84 and the bottom of the buffer groove 83 are connected by a spring. The upper surface of the buffer block 84 is provided with a stepped groove 86 at the rear position. The front end of the mold 3 is placed in the stepped groove 86.

[0046] In this embodiment, the upper slide block 81 is connected to the rear inner wall of the housing 1 by a second tension spring 87.

[0047] The mold 3 is connected to the rear retaining ring 6 only through the L-shaped strip 62. The overall weight is relatively large. After the mold 3 is moved out of the inner side of the rotating sleeve 2, the L-shaped strip 62 is prone to bending and damage. Therefore, the mold 3 is supported by the cooperation of the support seat 82 and the buffer block 84. The front end of the mold 3 is placed in the stepped groove 86 on the upper surface of the buffer block 84 to achieve effective support for the front end of the mold 3. After the casting is cooled and formed, it is unloaded. When the worker hooks the front handle of the mold 3 and pulls the mold 3 forward, the mold 3 will push the buffer block 84 forward synchronously. The buffer block 84 drives the support seat 82 forward, and the support seat 82 in turn drives the upper slide seat 81 to slide along the wedge strip of the lower slide seat 8. At the same time, the upper slide seat 81 will overcome the tension of the second tension spring 87 to ensure that the mold 3 moves forward smoothly.

[0048] When the mold 36 expands outward, it will squeeze the buffer block 84. The buffer block 84 slides down along the buffer groove 83 of the support seat 82 and overcomes the elastic force of the spring until the mold 36 is stably placed on the support seat 82, forming a more stable support and further distributing the weight of the mold 3, preventing the L-shaped strip 62 from bending and being damaged due to excessive force. After the casting is completely unloaded, the worker pushes the mold 3 backward. At this time, the second tension spring 87 will generate a reverse tension force, which on the one hand pulls the upper slide 81 to slide backward, and the upper slide 81 drives the support seat 82 and the buffer block 84 to move backward synchronously. On the other hand, it assists in pulling the mold 36 backward as a whole. The buffer block 84 pushes the mold 36 backward during the movement, saving the worker the effort to push the mold 3.

[0049] As the parting mold 36 continues to move backward, it retracts towards the center of the mold 3 and recombines to form the complete mold 3. The buffer block 84 returns to its original position under the elastic force of the spring, continuing to support the closed mold 3. The mold 3 continues to move backward until it returns to its original position. At this time, the second tension spring 87 always applies a backward pulling force to the upper slide block 81, the support block 82, and the buffer block 84. The buffer block 84 limits the front end of the mold 3, ensuring that the mold 3 is accurately positioned and stably placed within the rotating sleeve 2. This provides stable support and limitation for subsequent centrifugal casting operations, ensuring the smooth progress of centrifugal casting.

[0050] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1The orientations or positional relationships shown are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be construed as indicating or implying relative importance. In the description of the present invention, fixed connection refers to fixed connection.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A GIS-based irregular aluminum alloy processing cooling device, comprising a housing and a rotating hole extending through the front and rear of the housing; a rotating sleeve is rotatably connected within the rotating hole; a mold is installed within the rotating sleeve; characterized in that: The rotating sleeve is fixedly connected to an L-shaped external toothed ring at its rear end; the external toothed ring extends to the outside of the rotating hole and meshes with a gear; the gear is driven by a motor; a cover is closed on the top of the housing; a spray pipe is fixedly connected to the front inner wall of the housing above the top of the rotating sleeve; the rear end of the spray pipe passes through the housing and is fixedly connected to a first liquid pump; the first liquid pump is connected to a cooling source assembly; a spray groove corresponding to the rotating sleeve is provided through the inner wall of the spray pipe facing downwards; the length direction of the spray groove is the front-to-back direction; a notched shielding ring is rotatably connected to the outer wall of the spray pipe; there are multiple shielding rings, which are arranged to rotate and seal against each other; the total length of the multiple shielding rings is adapted to the total length of the spray groove; the shielding ring can rotate around the spray pipe.

2. The GIS-based irregular aluminum alloy processing cooling device according to claim 1, characterized in that: The top outer wall of the spray pipe is provided with a groove along the axial direction; the shielding ring is provided with a locking groove running through it vertically; a T-shaped locking piece is slidably connected to the locking groove; the horizontal part of the locking piece is connected to the outer wall of the shielding ring by a first tension spring; multiple grooves are distributed circumferentially at intervals on the top of the spray pipe.

3. The GIS-based irregular aluminum alloy processing cooling device according to claim 2, characterized in that: The inner wall of the shielding ring is provided with an arc-shaped groove; an arc-shaped block is movably connected in the arc-shaped groove; the arc-shaped block is fixedly connected to the outer wall of the spray pipe.

4. The GIS-based irregular aluminum alloy processing cooling device according to claim 2, characterized in that: The outer wall of the rotating sleeve is provided with semi-arc plates on the left and right sides respectively; a cooling gap is formed between the inner wall of the semi-arc plates and the inner wall of the rotating sleeve; the upper end of the two semi-arc plates forms a liquid inlet gap, and the lower end forms a liquid outlet gap; the liquid inlet gap corresponds to the liquid spraying groove; an arc-shaped guide plate is fixedly connected to the upper end of the semi-arc plates; the two guide plates are symmetrically attached to the outer surface of the shielding ring; the upper end of the two guide plates has a gap for the locking plate to rotate; the front and rear ends of the guide plates are fixedly connected to the inner wall of the box.

5. The GIS-based irregular aluminum alloy processing cooling device according to claim 4, characterized in that: Multiple cooling rings are spaced apart in the front-to-back direction inside the cooling gap; the inner edge of the cooling ring is in movable contact with the outer surface of the rotating sleeve, and the outer edge of the cooling ring is fixedly connected to the inner wall of the semi-arc plate.

6. The GIS-based irregular aluminum alloy processing cooling device according to claim 4, characterized in that: A second liquid pump is provided inside the housing and below the rotating sleeve; one end of the second liquid pump is fixedly connected to the liquid outlet gap through a collection box, and the other end is fixedly connected to the liquid outlet pipe.

7. The GIS-based special-shaped aluminum alloy processing cooling device according to claim 1, characterized in that: The inner side of the rotating sleeve, located at the rear end of the mold, is in sealing contact with the rear retaining ring; the rear retaining ring is in sliding sealing contact with the inner wall of the rotating sleeve; the front surface and the arc-shaped outer wall of the rear retaining ring are connected by an L-shaped groove; an L-shaped strip is provided in the L-shaped groove; the inner wall of the rotating sleeve is provided with an axial groove in the front-rear direction; one end of the L-shaped strip extends into the axial groove; the rear surface of the mold is provided with an installation groove for inserting the other end of the L-shaped strip; the arc-shaped outer wall of the mold is provided with a stepped threaded hole communicating with the installation groove; the end of the L-shaped strip inserted into the installation groove is provided with an installation hole corresponding to the threaded hole; a bolt passing through the installation hole is threadedly connected in the threaded hole; a front retaining ring is provided at the front position of the inner wall of the mold; an insertion hole is provided at the front position of the inner wall of the mold; a perforated lug is fixedly connected to the front surface of the front retaining ring; the insertion hole and the lug are inserted together into a pin.

8. The GIS-based irregular aluminum alloy processing cooling device according to claim 7, characterized in that: The L-shaped strip and L-shaped groove slide radially on the rear retaining ring; the inner wall of the axial groove is provided with a track groove; the track groove is divided into a rear straight section and a front inclined section that are interconnected; the front inclined section of the track groove moves away from the center of the mold from back to front; a track bar that is fixedly connected to the end of the L-shaped strip is movably connected in the track groove; the mold is composed of multiple circumferentially evenly distributed contacting mold pieces; the mold pieces are connected to the L-shaped strip.

9. A GIS-based cooling device for processing irregular-shaped aluminum alloys according to claim 8, characterized in that: The box body is connected to a sliding base through the front and back and fixedly connected; the upper sliding base is slidably connected to an upper sliding base on its upper surface; the upper sliding base and the sliding base are located below the rotating sleeve; the wedge-shaped groove on the lower surface of the upper sliding base is slidably connected to the wedge-shaped strip on the upper surface of the sliding base; the upper sliding base passes through the front side of the box body and is fixedly connected to a support base; a buffer groove is provided on the upper surface of the support base; a buffer block is slidably connected to the buffer groove up and down; the buffer block and the bottom of the buffer groove are connected by a spring; a stepped groove is provided on the rear position of the upper surface of the buffer block; the front end of the mold is placed in the stepped groove.

10. A GIS-based cooling device for processing irregularly shaped aluminum alloys according to claim 9, characterized in that: The upper slide is connected to the rear inner wall of the housing by a second tension spring.

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