Casting sand core assembly for manufacturing gearbox of high-speed rail motor train unit

Abstract

The utility model discloses a casting sand core assembly for manufacturing a gearbox of a high-speed rail motor train unit, which comprises a lower die, a cooling assembly is arranged on the lower die, the cooling assembly comprises a cooling bin, an insertion groove, a water inlet pipe, a water outlet pipe, an abutting rod and an upper die, the cooling bin is arranged on the lower die, the insertion groove is arranged on the lower die, and the upper die is arranged on the lower die. The water inlet pipe and the water outlet pipe are connected to the two ends of the cooling bin, the abutting rod is installed on the cooling bin, the upper mold is detachably installed on the lower mold, the water inlet pipe and the water outlet pipe are each provided with an unlocking assembly, and each unlocking assembly comprises a plurality of connecting pipes, a plurality of rotating pipes and a plurality of fixed pipes. The connecting pipe is connected with the water inlet pipe or the water outlet pipe, the rotating pipe is rotationally connected to one end of the connecting pipe, and the fixed pipe is rotationally connected to one end of the rotating pipe, so that the technical problems that in the background technology, a current assembly often lacks an efficient cooling mechanism and cannot be sufficiently cooled are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting sand core components, and more particularly to a casting sand core component for manufacturing a gearbox for a high-speed railway EMU. Background Art

[0002] In existing technologies, during high-temperature casting processes, sand core components are subjected to extremely high heat loads and require timely and effective cooling to maintain their structural stability and dimensional accuracy. However, current components often lack efficient cooling mechanisms and are unable to fully cool down. This may not only cause deformation or damage to the sand core, affecting the internal structure and surface quality of the casting, but may also shorten the service life of the sand core components and increase production costs.

[0003] Secondly, existing casting sand core assemblies have significant defects in the fixing mechanism of flow rate adjustment. During the casting process, the flow rate of coolant or gas needs to be adjusted according to different casting requirements and production conditions. However, current components often use complex or bulky fixing mechanisms, making it difficult for operators to quickly release the fixed state of flow rate adjustment. This design not only reduces production flexibility and efficiency, but may also lead to the inability to adjust the flow rate in time in an emergency, affecting product quality or causing safety hazards.

[0004] Finally, when precise adjustment of the water or air flow rate is required, existing casting sand core assemblies often lack flexible and precise adjustment mechanisms. During the casting process, different stages and different parts may require different cooling intensities, and current designs can usually only provide a limited number of fixed gears or rough adjustment methods. This limitation seriously affects the optimization of the cooling effect, which may lead to insufficient cooling in some areas and excessive cooling in other areas, ultimately affecting the uniformity and quality of the casting. In addition, inaccurate flow rate adjustment may also cause waste of cooling medium, increase production costs and environmental burden. Utility Model Content

[0005] (1) Technical problems solved

[0006] In response to the problems existing in the prior art, the present invention provides a casting sand core assembly for manufacturing high-speed train gearboxes to solve the technical problem mentioned in the background art that current components often lack an efficient cooling mechanism and cannot fully cool down.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a casting sand core assembly for manufacturing a high-speed train gearbox, comprising a lower mold, a cooling assembly provided on the lower mold, the cooling assembly comprising a cooling chamber, an insertion groove, a water inlet pipe, a water outlet pipe, a resisting rod and an upper mold, the cooling chamber is installed on the lower mold, the insertion groove is opened on the lower mold, the water inlet pipe and the water outlet pipe are connected at both ends of the cooling chamber, the resisting rod is installed on the cooling chamber, the upper mold is detachably installed on the lower mold, the water inlet pipe and the water outlet pipe are both provided with an unlocking assembly, the unlocking assembly comprises a connecting pipe, a rotating pipe and a fixed pipe, a plurality of connecting pipes are provided, and the connecting pipes are connected to the water inlet pipe or the water outlet pipe, the rotating pipe is rotatably connected to one end of the connecting pipe, and the fixed pipe is rotatably connected to one end of the rotating pipe.

[0009] The utility model is further configured such that guide rods are installed at the four corners of the upper mold, the guide rods are adapted to the insertion slots, and a pressing plate is installed at the bottom of the upper mold, so that the placement process of the upper mold is completed through the coordinated use of various components.

[0010] The utility model is further configured such that the top of the pressing plate is connected with an injection pipe, the injection pipe passes through the upper mold, and the bottom of the pressing plate is evenly connected with a distribution pipe, the distribution pipe is tightly attached to multiple cooling bins, and the injection process of the material is completed through the coordinated use of various components.

[0011] The present invention is further configured such that through grooves are evenly opened on the rotating tube, and a moving ring is slidably connected to the connecting tube, and the sliding movement process of the moving ring is completed through the coordinated use of various components.

[0012] The utility model is further configured such that a through rod is evenly connected to the movable ring, the through rod is adapted to the through groove, a tension spring is sleeved on the outer side of the through rod, and the two ends of the tension spring are respectively connected to the movable ring and the connecting pipe, and the stretching process of the tension spring is completed through the coordinated use of various components.

[0013] The utility model is further configured such that a speed regulating assembly is provided on the connecting pipe, and the speed regulating assembly includes a drain pipe, a water flow hole and a threaded rod. The drain pipe is fixedly mounted on the connecting pipe, the water flow holes are evenly opened on the outlet pipe, and the threaded rod is threadedly connected to the inner side of the rotating pipe. The rotation process of the threaded rod is completed through the coordinated use of various components.

[0014] The present invention is further configured such that one end of the threaded rod is connected with a limiting block, and the moving position of the threaded rod is limited by using the limiting block.

[0015] The present invention is further configured such that a moving rod is connected to the other end of the threaded rod, and the moving rod is in close contact with the water outlet pipe, so that the flow rate control process is completed by arranging the moving rod.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the present invention provides a casting sand core assembly for manufacturing a high-speed train gearbox, which has the following beneficial effects:

[0018] 1. The cooling component achieves efficient cooling through the design of the cooling chamber, water inlet pipe and water outlet pipe. The cooperation between the upper and lower molds ensures the accuracy of sand core molding, while the design of the insertion groove and guide rod ensures the accurate docking of the upper and lower molds. The setting of the pressure plate and the material distribution pipe realizes the uniform distribution of the coolant. The abutment rod ensures the close contact between the cooling chamber and the upper mold. This structure significantly improves the temperature control ability during the casting process, effectively prevents the deformation of the sand core, and improves product quality and production efficiency.

[0019] 2. The unlocking assembly consists of a connecting tube, a rotating tube, and a fixed tube, which realizes the quick unlocking function of flow rate adjustment. The design of the through groove and movable ring increases the flexibility of operation, while the combination of the through rod and tension spring provides a stable fixation and a quick unlocking mechanism. This design not only improves the efficiency of flow rate adjustment, but also enhances the operability of the system, enabling operators to quickly adjust the cooling intensity according to different casting requirements, effectively reducing downtime in the production process and improving overall production efficiency.

[0020] 3. The speed regulation system includes a drain pipe, water flow holes and threaded rods, which provide precise flow rate adjustment functions. The design of the limit block and movable rod allows precise control of water flow, while the threaded connection mechanism realizes continuous adjustment of the flow rate. This design significantly improves the accuracy and flexibility of the cooling system, enabling operators to accurately adjust the cooling intensity according to different casting stages and part requirements, greatly improving the uniformity and quality of castings. At the same time, this precise adjustment also helps to optimize the use of cooling medium, reducing production costs and resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a casting sand core assembly used for manufacturing a high-speed train gearbox in the present utility model;

[0022] Figure 2 This is a schematic structural diagram of the upper die in the utility model;

[0023] Figure 3 It is a schematic diagram of the enlarged structure of A in the present utility model;

[0024] Figure 4This is a schematic structural diagram of the lower mold in the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the unlocking component in the present utility model;

[0026] Figure 6 It is a schematic cross-sectional structural diagram of the unlocking component in the present invention.

[0027] In the figure: 1. Lower mold; 2. Cooling chamber; 3. Insertion groove; 4. Water inlet pipe; 5. Water outlet pipe; 6. Abutment rod; 7. Upper mold; 8. Connecting pipe; 9. Rotating pipe; 10. Fixed pipe; 11. Guide rod; 12. Pressing plate; 13. Injection pipe; 14. Distribution pipe; 15. Through groove; 16. Moving ring; 17. Through rod; 18. Tension spring; 19. Drain pipe; 20. Water hole; 21. Threaded rod; 22. Limiting block; 23. Moving rod. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0030] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0031] See also Figure 1-6 , a casting sand core assembly for manufacturing a high-speed rail EMU gearbox, includes a lower mold 1, a cooling assembly is provided on the lower mold 1, the cooling assembly includes a cooling chamber 2, an insertion groove 3, a water inlet pipe 4, a water outlet pipe 5, a moving rod 6 and an upper mold 7, the cooling chamber 2 is installed on the lower mold 1, the insertion groove 3 is opened on the lower mold 1, the water inlet pipe 4 and the water outlet pipe 5 are connected at both ends of the cooling chamber 2, the moving rod 6 is installed on the cooling chamber 2, and the upper mold 7 is detachably installed on the lower mold 1, and an unlocking assembly is provided on the water inlet pipe 4 and the water outlet pipe 5. The unlocking assembly includes a connecting pipe 8, a rotating pipe 9 and a fixed pipe 10. A plurality of connecting pipes 8 are provided, and the connecting pipe 8 is connected to the water inlet pipe 4 or the water outlet pipe 5. The rotating pipe 9 is rotatably connected to one end of the connecting pipe 8, and the fixed pipe 10 is rotatably connected to one end of the rotating pipe 9.

[0032] Guide rods 11 are installed at the four corners of the upper mold 7 , and the guide rods 11 are adapted to the insertion slots 3 . A pressing plate 12 is installed at the bottom of the upper mold 7 .

[0033] The top of the pressing plate 12 is connected with an injection pipe 13 , which passes through the upper mold 7 , and the bottom of the pressing plate 12 is evenly connected with a distribution pipe 14 , which is in close contact with the multiple cooling bins 2 .

[0034] The rotating tube 9 is evenly provided with through grooves 15 , and the connecting tube 8 is slidably connected with a moving ring 16 .

[0035] The movable ring 16 is evenly connected with a through rod 17, which is adapted to the through groove 15. A tension spring 18 is sleeved on the outer side of the through rod 17, and both ends of the tension spring 18 are respectively connected to the movable ring 16 and the connecting pipe 8.

[0036] In this embodiment, during use, the upper mold 7 is manually placed along the insertion groove 3 on the lower mold 1 using the guide rod 11, so that the distribution tube 14 is tightly attached to the top of the cooling bin 2, so that the abutting rod 6 on the cooling bin 2 is tightly attached to the bottom of the upper mold 7, and the raw material is manually injected along the injection tube 13, and flows into the top of the cooling bin 2 along the distribution tube 14, thereby completing the cooling process. During use, the rate at which water flows through the cooling bin 2 will affect the cooling efficiency of the component, so when it is necessary to adjust the water flow of the water inlet pipe 4 and the water outlet pipe 5, the movable ring 16 is manually slid along the outside of the connecting pipe 8. During its sliding movement, the through rod 17 on the movable ring 16 is driven to slide along the outside of the connecting pipe 8, so that it is removed from the through groove 15 on the rotating tube 9, so that the fixing process of the rotating tube 9 is released, and during its movement, the tension spring 18 is stretched.

[0037] See also Figure 6 As an implementation method of a speed regulating component for manufacturing a casting sand core component of a high-speed train gearbox: a speed regulating component is provided on the connecting pipe 8, the speed regulating component includes a drain pipe 19, a water hole 20 and a threaded rod 21, the drain pipe 19 is fixedly installed on the connecting pipe 8, the water holes 20 are evenly opened on the water outlet pipe 5, and the threaded rod 21 is threadedly connected to the inner side of the rotating tube 9.

[0038] One end of the threaded rod 21 is connected to a limiting block 22 .

[0039] The other end of the threaded rod 21 is connected to a moving rod 23 , which is in close contact with the water outlet pipe 5 .

[0040] More specifically, after the fixation of the rotating tube 9 is released, the rotating tube 9 is rotated manually. During the rotation process, the threaded rod 21 threadedly connected to the inner side of the rotating tube 9 is driven to move, and the movement position of the threaded rod 21 is limited by the limiting block 22. In addition, during the movement of the threaded rod 21, the moving rod 23 connected to one end thereof is driven to move along the drain pipe 19 on the connecting pipe 8, thereby adjusting the contact area between the moving rod 23 and the drain pipe 19, thereby adjusting the number of leaking water holes 20, and thereby adjusting the outflow rate of water.

[0041] In summary, when the entire equipment is in use or running: during use, the upper mold 7 is manually placed along the insertion groove 3 on the lower mold 1 using the guide rod 11, so that the distribution tube 14 is tightly attached to the top of the cooling bin 2, so that the abutting rod 6 on the cooling bin 2 is tightly attached to the bottom of the upper mold 7, and the raw material is manually injected along the injection tube 13, and flows into the top of the cooling bin 2 along the distribution tube 14, thereby completing the cooling process, and during use, the rate at which water flows through the cooling bin 2 will affect the cooling efficiency of the component, so when it is necessary to adjust the water flow of the water inlet pipe 4 and the water outlet pipe 5, the movable ring 16 is manually slid along the outside of the connecting pipe 8, and during its sliding movement, the through rod 17 on the movable ring 16 is driven to slide along the outside of the connecting pipe 8, so that it is removed from the through groove 15 on the rotating tube 9, so that the fixing process of the rotating tube 9 is released, and during its movement, the tension spring 18 is stretched.

[0042] After the fixation of the rotating tube 9 is released, the rotating tube 9 is rotated manually. During the rotation process, the threaded rod 21 threadedly connected to the inner side of the rotating tube 9 is driven to move, and the movement position of the threaded rod 21 is limited by the limiting block 22. In addition, during the movement of the threaded rod 21, the moving rod 23 connected to one end thereof is driven to move along the drain pipe 19 on the connecting pipe 8, thereby adjusting the contact area between the moving rod 23 and the drain pipe 19, thereby adjusting the number of leaking water holes 20, and thereby adjusting the outflow rate of water.

[0043] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A casting sand core assembly for manufacturing a high-speed train gearbox, comprising a lower mold (1), characterized in that: The lower mold (1) is provided with a cooling assembly, which comprises a cooling chamber (2), an insertion groove (3), a water inlet pipe (4), a water outlet pipe (5), a push rod (6) and an upper mold (7). The cooling chamber (2) is mounted on the lower mold (1), the insertion groove (3) is provided on the lower mold (1), the water inlet pipe (4) and the water outlet pipe (5) are connected to both ends of the cooling chamber (2), the push rod (6) is mounted on the cooling chamber (2), and the upper mold (7) ) is detachably mounted on the lower mold (1), and the water inlet pipe (4) and the water outlet pipe (5) are both provided with unlocking components, and the unlocking components include a connecting pipe (8), a rotating pipe (9) and a fixed pipe (10), a plurality of connecting pipes (8) are provided, and the connecting pipe (8) is connected to the water inlet pipe (4) or the water outlet pipe (5), the rotating pipe (9) is rotatably connected to one end of the connecting pipe (8), and the fixed pipe (10) is rotatably connected to one end of the rotating pipe (9).

2. The casting sand core assembly for manufacturing a high-speed train gearbox according to claim 1, characterized in that: Guide rods (11) are installed at the four corners of the upper die (7), and the guide rods (11) are adapted to the insertion slots (3). A pressing plate (12) is installed at the bottom of the upper die (7).

3. The casting sand core assembly for manufacturing a high-speed train gearbox according to claim 2, characterized in that: The top of the pressing plate (12) is connected with an injection pipe (13), and the injection pipe (13) passes through the upper mold (7). The bottom of the pressing plate (12) is evenly connected with a distribution pipe (14), and the distribution pipe (14) is tightly attached to multiple cooling bins (2).

4. The casting sand core assembly for manufacturing a high-speed train gearbox according to claim 3, characterized in that: The rotating tube (9) is evenly provided with through grooves (15), and the connecting tube (8) is slidably connected with a moving ring (16).

5. The casting sand core assembly for manufacturing a high-speed train gearbox according to claim 4, characterized in that: A through rod (17) is evenly connected to the movable ring (16), and the through rod (17) is adapted to the through groove (15). A tension spring (18) is sleeved on the outer side of the through rod (17), and the two ends of the tension spring (18) are respectively connected to the movable ring (16) and the connecting pipe (8).

6. A casting sand core assembly for manufacturing a high-speed train gearbox according to any one of claims 1 to 5, characterized in that: The connecting pipe (8) is provided with a speed regulating assembly, which comprises a drain pipe (19), a water flow hole (20) and a threaded rod (21). The drain pipe (19) is fixedly mounted on the connecting pipe (8), the water flow holes (20) are evenly arranged on the water outlet pipe (5), and the threaded rod (21) is threadedly connected to the inner side of the rotating pipe (9).

7. The casting sand core assembly for manufacturing a high-speed train gearbox according to claim 6, characterized in that: One end of the threaded rod (21) is connected with a limiting block (22).

8. The casting sand core assembly for manufacturing a high-speed train gearbox according to claim 7, characterized in that: The other end of the threaded rod (21) is connected to a moving rod (23), and the moving rod (23) is in close contact with the water outlet pipe (5).

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