A casting mold for a rail vehicle axle box cover

By employing a top-down casting process and a combined water-cooling and air-cooling system, the problems of improper molten metal filling and insufficient cooling in the casting molds for axle box covers of rail vehicles were solved, resulting in high-quality castings and efficient cooling, and extending the service life of the molds.

CN224294683UActive Publication Date: 2026-05-29TIANCHANG XINGYU CASTING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANCHANG XINGYU CASTING CO LTD
Filing Date
2025-06-09
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Traditional casting molds for axle box covers for rail vehicles suffer from problems such as improper molten metal filling leading to porosity and impurities, and insufficient cooling, which affect the quality and efficiency of the castings.

Method used

The casting process adopts a top-down pouring process and a water-cooled plus air-cooled combined cooling system. Gas and slag are discharged through the pouring port, and the cooling efficiency and casting quality are improved by combining nozzle flushing and fan cooling.

Benefits of technology

It reduces internal porosity in castings, improves casting quality and cooling efficiency, extends mold life, and enhances work efficiency and cleaning effectiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of axle box cover and disclose a kind of casting mould for rail vehicle axle box cover, including pouring assembly, water cooling assembly is installed in pouring assembly top, the air-cooled component is set in the water cooling assembly bottom, by the design of left and right mould, so that metal liquid can be vertically flowed into to mould inner cavity from top to bottom, so that metal liquid can evenly fill entire mould cavity, help the natural rising of gas and slag, reduce the pore formation in the casting, improve the quality of casting, by nozzle to left and right mould continuous flushing, can effectively take away heat, reduce mould temperature, reach the effect of rapid cooling, it can also flush the residue on the surface of mould, it is conducive to improving the service life of mould, by the air-cooled component set, water cooling assembly can be cooperated to speed up cooling speed, improve work efficiency, it can also avoid a large amount of dust adhesion, affect pouring effect.
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Description

Technical Field

[0001] This utility model relates to the field of axle box cover technology, and more specifically to a casting mold for axle box covers of rail vehicles. Background Technology

[0002] The axle box cover of a rail vehicle is an important component of the bogie system. It is mainly used to protect the internal components of the axle box, such as bearings and lubrication systems, and has the function of preventing dust, moisture and other contaminants from entering. In the casting of axle box covers, traditional casting molds for rail vehicles often have problems with the mold design, which often results in improper filling of molten metal, causing air holes and impurities in the mold. This leads to problems with the quality of the mold after casting. In addition, the cooling effect during the casting process is insufficient, which affects the casting efficiency.

[0003] In view of the above-mentioned problems in the existing technology, the present invention provides a casting mold for axle box cover of rail vehicle. Through the top-down pouring process, the gas and slag can rise naturally and be discharged through the pouring port, which reduces the possibility of forming pores and impurities inside the casting, thereby improving the quality of the casting. Then, the combination of water cooling and air cooling improves the cooling efficiency and working quality, and also provides convenience for subsequent cleaning. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a casting mold for axle box cover of rail vehicles to solve the problems of improper material filling and insufficient cooling effect in the prior art.

[0005] This utility model provides the following technical solution: a casting mold for axle box cover of a rail vehicle, including a casting assembly, a water-cooling assembly installed on the top of the casting assembly, and an air-cooling assembly provided at the bottom of the water-cooling assembly. The casting assembly includes a load-bearing plate, a hydraulic rod, a push plate, a left mold, a right mold, and a demolding frame. The end of the hydraulic rod away from the base is movably connected to the push plate. The end of the push plate away from the hydraulic rod is fixedly installed with the left mold. The left mold and the right mold are movably connected. The demolding frame is detachably installed in the middle of the inner cavity of the water tank. The water-cooling assembly includes a positioning plate, a water storage cylinder, a water inlet pipe, and a nozzle. The bottom of the positioning plate is fixedly connected to the top of the load-bearing plate, and the top of the positioning plate is movably installed with the water storage cylinder. Both ends of the water storage cylinder are provided with openings and are movably connected to the water inlet pipe. The side wall of the water storage cylinder is detachably installed with a nozzle.

[0006] Preferably, the casting assembly further includes a fixing block, a water tank, a support plate, and a base. A water tank is fixedly installed in the middle of the top of the load-bearing plate, and fixing blocks are movably installed at both ends of the top of the load-bearing plate. A support plate is fixedly installed on the top of the fixing block, and a base is movably connected to the side wall of the support plate. A hydraulic rod is movably installed on the outer side of the base.

[0007] Preferably, the water-cooling assembly further includes a drain pipe, which is movably connected to an opening on the outside of the water tank.

[0008] Preferably, the air-cooling assembly includes a fixing plate and a crossbeam. The fixing plate is fixedly installed on the side wall of the positioning plate near the positioning plate, and the crossbeam is fixedly connected to the outer side of the fixing plate.

[0009] Preferably, the air-cooling assembly further includes a motor and a fan. The top of the crossbeam has a groove and a motor is movably placed thereon. The end of the motor away from the crossbeam is movably connected to the fan.

[0010] The technical effects and advantages of this utility model are as follows:

[0011] This invention, through the design of the left and right molds, allows molten metal to flow vertically from top to bottom into the left and right molds, enabling the molten metal to fill the entire mold cavity more evenly. This facilitates the natural rise of gas and slag, which are then discharged through the gating system, reducing the formation of porosity inside the casting and effectively improving the internal quality of the casting.

[0012] This invention uses nozzles to continuously flush the left and right molds, effectively removing heat and reducing mold temperature for rapid cooling. This prevents mold damage caused by overheating and also washes away residues on the mold surface, thus extending the mold's service life.

[0013] This invention incorporates an air-cooling component, which, in conjunction with a water-cooling component, accelerates the cooling process, improves work efficiency, and prevents excessive dust adhesion that could affect the casting effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a top view of the overall structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the casting component structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the water-cooling component structure of this utility model.

[0018] Figure 5 For the present utility model Figure 4 Schematic diagram of the structure at point A in the middle.

[0019] Figure 6 This is a schematic diagram of the air-cooled component structure of this utility model.

[0020] Figure 7 For the present utility model Figure 6 Schematic diagram of the structure at point B.

[0021] The attached figures are labeled as follows: 1. Casting assembly; 101. Load-bearing plate; 102. Fixing block; 103. Water tank; 104. Support plate; 105. Base; 106. Hydraulic rod; 107. Push plate; 108. Left mold; 109. Right mold; 110. Demolding frame; 2. Water cooling assembly; 201. Positioning plate; 202. Water storage tank; 203. Water inlet pipe; 204. Nozzle; 205. Drain pipe; 3. Air cooling assembly; 301. Fixing plate; 302. Crossbeam; 303. Motor; 304. Fan. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The casting mold for the axle box cover of a rail vehicle involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Reference Figure 1-7 This utility model provides a casting mold for axle box cover of rail vehicle, including a casting component 1, a water cooling component 2 installed on the top of the casting component 1, and an air cooling component 3 provided at the bottom of the water cooling component 2.

[0024] Reference Figure 1 , Figure 2 and Figure 3 The casting assembly 1 includes a load-bearing plate 101, a fixing block 102, a water tank 103, a support plate 104, a base 105, a hydraulic rod 106, a push plate 107, a left mold 108, a right mold 109, and a demolding frame 110. A water tank 103 is fixedly installed at the center of the top of the load-bearing plate 101, and fixing blocks 102 are movably installed at both ends of the top of the load-bearing plate 101. A support plate 104 is fixedly installed on the top of the fixing blocks 102. A base 105 is movably connected to the side wall of the support plate 104. A hydraulic rod 106 is movably installed on the outer side of the base 105, with the end of the hydraulic rod 106 furthest from the base 105... The push plate 107 is movably connected to the push plate 107. The end of the push plate 107 away from the hydraulic rod 106 is fixedly installed with the left mold 108. The left mold 108 and the right mold 109 are movably connected. The demolding frame 110 is detachably installed in the middle of the inner cavity of the water tank 103. The purpose is to allow the molten metal to flow from top to bottom into the left mold 108 and the right mold 109 through the design of the left mold 108 and the right mold 109, so that the molten metal can flow into the mold cavity more evenly, which helps the gas and slag to rise naturally and finally be discharged through the pouring port, reducing the formation of porosity inside the casting and effectively improving the internal quality of the casting.

[0025] Reference Figure 4 , Figure 5 and Figure 6 The water cooling component 2 includes a positioning plate 201, a water storage cylinder 202, a water inlet pipe 203, a nozzle 204, and a drain pipe 205. The bottom of the positioning plate 201 is fixedly connected to the top of the load-bearing plate 101, and the water storage cylinder 202 is movably installed on the top of the positioning plate 201. Both ends of the water storage cylinder 202 are provided with openings and are movably connected to the water inlet pipe 203. The nozzle 204 is detachably installed on the side wall of the water storage cylinder 202. The drain pipe 205 is movably inserted into the opening on the outside of the water tank 103. The purpose is to continuously flush the left mold 108 and the right mold 109 through the nozzle 204, which can effectively remove heat, reduce the mold temperature, achieve a rapid cooling effect, prevent mold damage caused by overheating, and also wash away the residue on the mold surface, thereby improving the service life of the mold.

[0026] Reference Figure 6 and Figure 7 The air-cooled assembly 3 includes a fixed plate 301, a crossbeam 302, a motor 303, and a fan 304. The fixed plate 301 is fixedly installed on the side wall of the positioning plate 201 near the positioning plate 201, and the crossbeam 302 is fixedly connected to the outer side of the fixed plate 301. The top of the crossbeam 302 has a groove and the motor 303 is movably placed there. The end of the motor 303 away from the crossbeam 302 is movably connected to the fan 304. The purpose is to cooperate with the water-cooled assembly 2 to accelerate the cooling speed and improve the working efficiency. At the same time, it can also avoid a large amount of dust adhering and affecting the pouring effect.

[0027] The working principle of this utility model is as follows: First, the device is installed in the working environment. When casting is required, the support plate 104 and base 105 on the top of the fixed block 102 support the hydraulic rod 106 and push plate 107 to maintain them at the same horizontal height, ensuring that they do not affect other components and cause equipment damage. Then, under the action of the two hydraulic rods 106, the left mold 108 and right mold 109 are brought close together and connected. At this time, molten metal is poured into the inner cavity of the left mold 108 and right mold 109 from the pouring port. Simultaneously, the water inlet pipe 203 is connected to a water source, allowing water to flow into the water storage tank 202 and then spray out from the nozzle 204 on the side wall of the water storage tank 202. The water flow sprayed from the nozzle 204 continuously impacts the left mold 108 and right mold 109 to cool them down and accelerate mold forming. Combined with the operation of the air cooling component 3, the mold forming is accelerated under the support of air cooling. After the mold temperature cools down, the left mold 108 and the right mold 109 are separated by the cooperation of two hydraulic rods 106. At this time, the mold that has been cast can be manually removed or allowed to fall freely into the demolding frame 110 under the influence of gravity to continue cooling. After it has cooled completely, the gate and riser, as well as the burrs and flash on the surface, are cleaned to keep the product appearance clean. This completes one casting process of the mold. During the cooling process, the water sprayed from the nozzle 204 can flow into the water tank 103 and then be discharged through the drain pipe 205. If conditions permit, these water flows can be reused. The water discharged from the drain pipe 205 can be collected and flowed back into the water storage tank 202 through the water inlet pipe 203 for reuse. When it is necessary to clean this device, it can be directly rinsed by the water cooling component 2, which effectively improves cleaning efficiency while taking into account work efficiency.

[0028] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0029] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A casting mold for axle box cover of a rail vehicle, comprising a casting assembly (1), characterized in that: The casting assembly (1) is equipped with a water-cooling assembly (2) on top and an air-cooling assembly (3) at the bottom. The casting assembly (1) includes a load-bearing plate (101), a hydraulic rod (106), a push plate (107), a left mold (108), a right mold (109), and a demolding frame (110). The end of the hydraulic rod (106) away from the base (105) is movably connected to the push plate (107). The end of the push plate (107) away from the hydraulic rod (106) is fixedly installed with the left mold (108). The left mold (108) and the right mold (109) are connected to each other. 09) Movable connection, the demolding frame (110) is detachably installed in the middle of the inner cavity of the water tank (103), the water cooling component (2) includes a positioning plate (201), a water storage cylinder (202), a water inlet pipe (203) and a nozzle (204). The bottom of the positioning plate (201) is fixedly connected to the top of the load-bearing plate (101), and the water storage cylinder (202) is movably installed on the top of the positioning plate (201). Both ends of the water storage cylinder (202) are provided with openings and are movably connected to the water inlet pipe (203), and the nozzle (204) is detachably installed on the side wall of the water storage cylinder (202).

2. The casting mold for axle box cover of a rail vehicle according to claim 1, characterized in that: The casting assembly (1) further includes a fixing block (102), a water tank (103), a support plate (104), and a base (105). The water tank (103) is fixedly installed at the middle of the top of the load-bearing plate (101), and the fixing blocks (102) are movably installed at both ends of the top of the load-bearing plate (101). The support plate (104) is fixedly installed on the top of the fixing block (102), and the base (105) is movably connected to the side wall of the support plate (104). A hydraulic rod (106) is movably installed on the outer side of the base (105).

3. A casting mold for axle box cover of a rail vehicle according to claim 1, characterized in that: The water-cooling assembly (2) also includes a drain pipe (205), which is movably connected to an opening on the outside of the water tank (103).

4. A casting mold for axle box cover of a rail vehicle according to claim 1, characterized in that: The air-cooled assembly (3) includes a fixing plate (301) and a crossbeam (302). The fixing plate (301) is fixedly installed on the side wall of the positioning plate (201) near the positioning plate (201), and the crossbeam (302) is fixedly connected to the outside of the fixing plate (301).

5. A casting mold for axle box cover of a rail vehicle according to claim 4, characterized in that: The air-cooled assembly (3) also includes a motor (303) and a fan (304). The top of the crossbeam (302) has a groove and the motor (303) is movably placed therein. The end of the motor (303) away from the crossbeam (302) is movably connected to the fan (304).