Casting part shell structure with internal cooling channel

Abstract

The utility model discloses a casting part shell structure with an internal cooling channel, belongs to the technical field of casting production, aims at solving the problem that heat of a casting part cannot be effectively absorbed due to the fact that fluid stays in the cooling channel for a short time, and comprises an inner shell. A plurality of through holes in the flow slowing pipe, an upper baffle and a lower baffle are matched, so that the flow speed of the fluid can be slowed down, the fluid can flow more stably, the retention time of the fluid in the flow slowing pipe is prolonged, the heat exchange efficiency is improved, the cooling effect is more efficient, and the negative influence of too high temperature on equipment is prevented; meanwhile, through cooperation of the cover plate and the through hole, it is ensured that cooling liquid only flows in one direction in the pipeline, the phenomenon of backflow or mixed flow of the cooling liquid is avoided, it is ensured that fluid flows more stably and efficiently, the fan blades are driven to rotate when the fluid flows through the fan blades, the scraper is beneficial to clearing away sediments accumulated on the baffle, pipeline blockage and cooling channel efficiency reduction are avoided, and the service life of the fan blades is prolonged. And long-term stable operation of the system is maintained.

Description

Technical Field

[0001] This utility model belongs to the field of casting production technology, and specifically relates to a casting shell structure with internal cooling channels. Background Technology

[0002] Castings refer to parts that are produced by melting metal materials and pouring them into a mold to cool and solidify, thereby obtaining the desired shape. Casting is a common process for manufacturing metal parts and is suitable for mass production, complex shapes and large parts. Common casting methods include sand casting, precision casting, die casting, low-pressure casting, etc. Casting shells refer to shell-type structural parts made using casting processes.

[0003] A prior art patent, CN205228157U, describes a casting furnace shell. This patent includes an inner shell, an outer shell, and a cavity between the inner and outer shells. The cavity is filled with a fluid medium occupying 2 / 3 to 3 / 4 of its volume. The outer shell has a water inlet connected to the cavity. The top wall of the cavity, away from the fluid medium, has honeycomb-shaped protrusions. Several connecting plates connecting the inner and outer shells are located within the cavity. This device achieves noise reduction through the fluid-filled cavity and the honeycomb protrusions, and uses connecting blocks to compensate for strength. However, in practical use, it has the following shortcomings: While the device cools the castings by allowing fluid to pass through the water inlet and outlet, the fluid has no obstruction in the cavity, resulting in a short residence time and insufficient heat exchange. This prevents the fluid from effectively absorbing the heat from the castings, thus affecting the cooling effect.

[0004] Therefore, a casting shell structure with internal cooling channels is needed to solve the problem in existing technologies where the fluid residence time inside the cooling channels is too short to effectively absorb heat from the casting. Summary of the Invention

[0005] The purpose of this invention is to provide a casting shell structure with an internal cooling channel to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a casting shell structure with an internal cooling channel, comprising an inner shell, a plurality of positioning blocks fixedly connected to the outer side of the inner shell, an outer shell detachably connected to the top of the inner shell, a plurality of connecting ears fixedly connected to the outer side of the outer shell near the bottom, each of the connecting ears being rotatably connected to a fixing bolt, a water inlet fixedly connected to the front end of the outer shell, a water outlet fixedly connected to the rear end of the outer shell, and a flow-slowing mechanism provided inside the outer shell.

[0007] It is worth mentioning that the inner shell comprises a body layer, the inner wall of the body layer is fixedly connected with a corrosion-resistant layer, the outer wall of the body layer is fixedly connected with a reinforcing rib layer, and the outer wall of the reinforcing rib layer is fixedly connected with a wear-resistant layer.

[0008] Further, the corrosion-resistant layer is made of a polyurethane coating, and the wear-resistant layer is made of a silicon carbide ceramic coating.

[0009] Further, the inner wall of the body layer is fixedly connected with a corrosion-resistant layer, the outer wall of the body layer is fixedly connected with a reinforcing rib layer, and the outer wall of the reinforcing rib layer is fixedly connected with a wear-resistant layer.

[0010] As a preferred embodiment, the inner shell top is provided with a plurality of threaded grooves corresponding to the fixing bolts.

[0011] As a preferred embodiment, the flow slowing mechanism comprises a flow slowing pipe fixedly connected between the water inlet and the water outlet, a fixing ring fixedly connected to the inner wall of the flow slowing pipe, a disc fixedly connected to the inner wall of the fixing ring, a plurality of through holes formed in the surface of the disc, a plurality of cover plates rotatably connected to the inner side of the disc and corresponding to the through holes, a plurality of upper baffles fixedly connected to the inner wall of the flow slowing pipe at the top position, a plurality of lower baffles fixedly connected to the inner wall of the flow slowing pipe at the bottom position, a plurality of rotating shafts fixedly connected between the front and rear ends of the inner wall of the flow slowing pipe, a plurality of fan blades rotatably connected to the outer wall of the rotating shafts, and a plurality of scrapers fixedly connected to the outer side of the fan blades.

[0012] As a preferred embodiment, the flow slowing pipe is designed in a serpentine shape.

[0013] As a preferred embodiment, the upper baffles and the lower baffles are staggered, and the scrapers are attached to the surfaces of the upper baffles and the lower baffles.

[0014] Compared with the prior art, the shell structure of the casting part with the internal cooling channel has at least the following beneficial effects:

[0015] (1) By setting the flow slowing mechanism, the plurality of through holes, upper baffles and lower baffles in the flow slowing pipe cooperate to slow down the flow rate of the fluid, making it flow more smoothly, increasing the residence time of the fluid inside the flow slowing pipe, improving the heat exchange efficiency, making the cooling effect more efficient, preventing the negative effects of excessive temperature on the equipment; at the same time, the cooperation of the cover plates and the through holes ensures that the cooling liquid flows in only one direction in the pipeline, avoiding backflow or mixing of the cooling liquid, ensuring that the fluid flows more stably and efficiently, and the fan blades are driven to rotate when the fluid flows through, and the scrapers help to remove the deposits accumulated on the baffles, avoiding pipeline blockage and cooling channel efficiency decline, and maintaining long-term stable operation of the system.

[0016] (2) by setting the inner shell and outer shell detachable connection, when the need to clean the cooling channel, check or repair, can easily disassemble the outer shell, reduce the maintenance time, improve the maintenance efficiency of the equipment; by setting the anticorrosive layer, stiffener layer and wear-resistant layer, increase the compression anticorrosion ability of the casting shell, improve the strength of the casting shell, prolong its service life. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the first perspective structure schematic view of the utility model;

[0018] Figure 2 It is the first perspective structure schematic view of the utility model;

[0019] Figure 3 It is the internal structure diagram of the inner shell of the utility model;

[0020] Figure 4 It is the structure schematic view of the flow slowing mechanism of the utility model.

[0021] In the drawing: 1, inner shell; 101, body layer; 102, anticorrosive layer; 103, stiffener layer; 104, wear-resistant layer; 2, positioning block; 3, outer shell; 4, connecting lug; 5, fixed bolt; 6, water inlet; 7, water outlet; 8, flow slowing mechanism; 801, flow slowing pipe; 802, fixed ring; 803, disc; 804, through hole; 805, cover plate; 806, upper baffle; 807, lower baffle; 808, pivot; 809, fan blade; 810, scraper. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with examples.

[0023] Please refer to Figures 1-4 The utility model provides a kind of casting shell structure with internal cooling channel, including inner shell 1, multiple positioning blocks 2 are fixedly connected on the outer side of inner shell 1, outer shell 3 is detachably connected on the top of inner shell 1, multiple connecting lug 4 are fixedly connected on the outer side of outer shell 3 close to bottom position, multiple fixed bolts 5 are rotatably connected on the top of multiple connecting lug 4, water inlet 6 is fixedly connected on the front end of outer shell 3, water outlet 7 is fixedly connected on the rear end of outer shell 3, flow slowing mechanism 8 is arranged in outer shell 3.

[0024] Further as Figure 3As shown, it is worth noting that the inner shell 1 comprises a body layer 101, the inner wall of which is fixedly connected with a corrosion-resistant layer 102, the outer wall of which is fixedly connected with a reinforcing rib layer 103, and the outer wall of which is fixedly connected with a wear-resistant layer 104. Under the action of the corrosion-resistant layer 102, the reinforcing rib layer 103 and the wear-resistant layer 104, the compression and corrosion resistance of the inner shell 1 is increased, the strength of the inner shell 1 is increased, and the service life of the inner shell 1 is prolonged.

[0025] Further as shown in Figure 3 , it is worth noting that the corrosion-resistant layer 102 is made of a polyurethane coating, which has excellent chemical corrosion resistance and can effectively protect the inner shell 1 from corrosion by acids, bases or other chemical media, and is suitable for high-corrosion environments; the wear-resistant layer 104 is made of a silicon carbide ceramic coating, which is a material with extremely high hardness and can effectively resist damage from mechanical wear, impact or friction.

[0026] Further as shown in Figure 1 and Figure 2 , it is worth noting that the plurality of positioning blocks 2 are internally provided with mounting holes, and the design of the mounting holes makes the manufacturing and assembly process more convenient. In the production process, the mounting holes can effectively reduce errors and improve the efficiency and accuracy of assembly.

[0027] Further as shown in Figure 1 and Figure 2 , it is worth noting that the inner shell 1 is provided at the top with a plurality of threaded grooves corresponding to the fixing bolts 5, which can quickly and conveniently fix and disassemble the outer shell 3. This detachable connection method can simplify the assembly process and also provide convenience for later maintenance and replacement.

[0028] According to the above working process, it can be known that: by setting the detachable connection of the inner shell 1 and the outer shell 3, when the cooling channel needs to be cleaned, inspected or repaired, the outer shell 3 can be easily disassembled, the maintenance time is reduced, and the maintenance efficiency of the equipment is improved; by setting the corrosion-resistant layer 102, the reinforcing rib layer 103 and the wear-resistant layer 104, the compression and corrosion resistance of the casting shell is increased, the strength of the casting shell is improved, and the service life thereof is prolonged.

[0029] Further as shown in Figure 4As shown, it is worth noting that the flow slowing mechanism 8 comprises a flow slowing pipe 801 fixedly connected between the water inlet 6 and the water outlet 7, a fixed ring 802 fixedly connected to the inner wall of the flow slowing pipe 801, a disc 803 fixedly connected to the inner wall of the fixed ring 802, a plurality of through holes 804 formed on the surface of the disc 803, a plurality of cover plates 805 rotatably connected to the inner side of the disc 803 corresponding to the through holes 804, a plurality of upper baffles 806 fixedly connected to the top of the inner wall of the flow slowing pipe 801, a plurality of lower baffles 807 fixedly connected to the bottom of the inner wall of the flow slowing pipe 801, a plurality of rotating shafts 808 fixedly connected between the front and rear ends of the inner wall of the flow slowing pipe 801, a plurality of fan blades 809 rotatably connected to the outer wall of the rotating shafts 808, and a plurality of scrapers 810 fixedly connected to the outer side of the fan blades 809. By setting the flow slowing mechanism 8, the plurality of through holes 804, the upper baffles 806 and the lower baffles 807 in the flow slowing pipe 801 cooperate to slow down the flow rate of the fluid, making it flow more smoothly, increasing the residence time of the fluid inside the flow slowing pipe 801, improving the heat exchange efficiency, making the cooling effect more efficient, preventing the negative impact of excessive temperature on the equipment; At the same time, the cooperation of the cover plates 805 and the through holes 804 ensures that the cooling liquid flows in only one direction in the pipeline, avoiding backflow or mixed flow of the cooling liquid, ensuring that the fluid flows more stably and efficiently. When the fluid flows through, the fan blades 809 rotate, and the scrapers 810 help to remove the accumulated deposits on the baffles, preventing pipeline blockage and cooling channel efficiency decline, and maintaining long-term stable operation of the system.

[0030] Further as shown in Figure 4 It is worth noting that the flow slowing pipe 801 is designed in a serpentine shape, which allows the flow slowing pipe 801 to achieve a longer cooling path in a relatively limited space, thereby increasing the surface area of the flow slowing pipe 801 and improving the heat exchange efficiency.

[0031] Further as shown in Figure 4 It is worth noting that the plurality of upper baffles 806 and lower baffles 807 are staggered, making the fluid flow in a curved manner, slowing down the fluid flow rate while extending the fluid path, making the heat exchange more sufficient, and the scrapers 810 are in close contact with the surfaces of the upper baffles 806 and the lower baffles 807, which can effectively remove the deposits and impurities on the surfaces of the upper baffles 806 and the lower baffles 807, prevent the accumulation of possible impurities in the cooling liquid, keep the flow channel clean, help to maintain the cooling efficiency and prolong the service life of the equipment.

[0032] The scheme has the following working process: in actual use, the cooling liquid enters the shell body 3 from the front end water inlet 6, enters the slow flow pipe 801, is divided by the plurality of through holes 804 after entering the slow flow pipe 801, can only flow in one direction, and then is guided by the plurality of upper baffles 806 and lower baffles 807, the flow rate and flow direction are adjusted, the staggered distribution of the baffles helps the cooling liquid to be uniformly distributed in the pipeline, the fan blades 809 are rotated when the fluid flows, the scraper 810 removes the accumulated deposits on the baffles, keeps the channel clean, enhances the flow efficiency of the cooling liquid, and through the optimized flow path, the cooling liquid is appropriately slowed down and flow adjusted in the slow flow pipe 801, thereby improving the cooling effect and avoiding local overheating. The cooling liquid flows out of the shell body 3 through the rear end water outlet 7 of the slow flow pipe 801, and the whole cooling cycle is completed.

[0033] In summary: by setting the detachable connection of the inner shell 1 and the outer shell 3, when cleaning, checking or repairing the cooling channel is needed, the outer shell 3 can be easily disassembled, the maintenance time is reduced, and the maintenance efficiency of the equipment is improved; by setting the corrosion-resistant layer 102, the reinforcing rib layer 103 and the wear-resistant layer 104, the compression and corrosion resistance of the cast shell is increased, the strength of the cast shell is improved, and the service life is prolonged; by setting the slow flow mechanism 8, the plurality of through holes 804, the upper baffles 806 and the lower baffles 807 in the slow flow pipe 801 cooperate to slow down the flow rate of the fluid, make it flow more smoothly, increase the residence time of the fluid in the slow flow pipe 801, improve the heat exchange efficiency, make the cooling effect more efficient, and prevent the negative effects of high temperature on the equipment.

Claims

1. A casting shell structure with internal cooling channels, comprising an inner shell (1), characterized in that: Multiple positioning blocks (2) are fixedly connected to the outer side of the inner shell (1). The outer shell (3) is detachably connected to the top of the inner shell (1). Multiple connecting ears (4) are fixedly connected to the outer side of the outer shell (3) near the bottom. Each of the multiple connecting ears (4) is rotatably connected to a fixing bolt (5). A water inlet (6) is fixedly connected to the front end of the outer shell (3). A water outlet (7) is fixedly connected to the rear end of the outer shell (3). A flow-slowing mechanism (8) is provided inside the outer shell (3).

2. The casting shell structure with internal cooling channels according to claim 1, characterized in that: The inner shell (1) includes a body layer (101), an anti-corrosion layer (102) is fixedly connected to the inner wall of the body layer (101), a reinforcing rib layer (103) is fixedly connected to the outer wall of the body layer (101), and a wear-resistant layer (104) is fixedly connected to the outer wall of the reinforcing rib layer (103).

3. A casting shell structure with an internal cooling channel according to claim 2, characterized in that: The anti-corrosion layer (102) is made of polyurethane coating, and the wear-resistant layer (104) is made of silicon carbide ceramic coating.

4. A casting shell structure with internal cooling channels according to claim 1, characterized in that: Each of the positioning blocks (2) has an installation hole inside.

5. A casting shell structure with an internal cooling channel according to claim 1, characterized in that: The top of the inner shell (1) has multiple threaded grooves corresponding to the fixing bolts (5).

6. A casting shell structure with internal cooling channels according to claim 1, characterized in that: The flow control mechanism (8) includes a flow control pipe (801) fixedly connected between the inlet (6) and the outlet (7). A fixing ring (802) is fixedly connected to the inner wall of the flow control pipe (801). A disc (803) is fixedly connected to the inner wall of the fixing ring (802). A plurality of through holes (804) are opened on the surface of the disc (803). A plurality of cover plates (805) corresponding to the through holes (804) are rotatably connected to the inner side of the disc (803). A plurality of upper baffles (806) are fixedly connected to the top position of the inner wall of the flow control pipe (801). A plurality of lower baffles (807) are fixedly connected to the bottom position of the inner wall of the flow control pipe (801). A plurality of rotating shafts (808) are fixedly connected between the front and rear ends of the inner wall of the flow control pipe (801). A plurality of fan blades (809) are rotatably connected to the outer wall of each of the multiple rotating shafts (808). A scraper (810) is fixedly connected to the outer side of each of the multiple fan blades (809).

7. A casting shell structure with an internal cooling channel according to claim 6, characterized in that: The slow-flow tube (801) has a serpentine bend design.

8. A casting shell structure with internal cooling channels according to claim 6, characterized in that: The upper baffles (806) and lower baffles (807) are staggered, and the scraper (810) is in contact with the surfaces of the upper baffles (806) and the lower baffles (807).

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