Cooling device for steel casting production

Abstract

The utility model belongs to the technical field of steel casting machining, and discloses a cooling device for steel casting production, which comprises an outer shell, an inner shell is arranged in the outer shell, a bottom plate is fixed below the outer shell and the inner shell, a top plate is fixed above the outer shell and the inner shell, and an air supply bin is arranged in the inner space of the inner shell. A cooling bin is arranged in the space between the outer shell and the inner shell, an air inlet fan is installed on a bottom plate at the bottom of the air supply bin, an air outlet fan is installed on a top plate at the top of the cooling bin, and a discharging roller is arranged in the cooling bin along a spiral track and rotates through a center rotating shaft. The two ends of the rotating shaft are fixed to the outer shell and the inner shell respectively, the top of the discharging roller is connected with a feeding sliding plate, the bottom of the discharging roller is connected with a discharging sliding plate, and the inner shell is provided with vent holes so that the air supply bin can be communicated with the cooling bin. The air cooling device solves the problem that an existing air cooling device is good in sealing performance, effectively utilizes air flow to cool steel castings, prevents air from flowing outwards, and improves cooling efficiency of the steel castings.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel casting processing, and particularly relates to a cooling device for steel casting production. Background Art

[0002] The cooling of steel castings not only affects the dimensional accuracy and internal quality of the castings, but also directly relates to the performance and service life of the castings. During the casting process, the temperature of the castings is usually very high, and cooling treatment is required to eliminate the residual stress and cracks inside the castings and improve their mechanical properties and corrosion resistance. The commonly used cooling methods are natural cooling, water cooling, air cooling, liquid metal cooling, and casting waste heat cooling. Among them, when it is impossible to design cooling water channels for water cooling in some small parts of the steel castings, air cooling is an effective alternative. Air cooling is achieved by blowing air with a blower or compressed air to cool the castings. Most of the existing air cooling devices use a horizontal conveyor belt in cooperation with a blower to cool the steel castings, but this device has low sealing performance and poor utilization of the air flow direction, causing some air to flow out of the device without contacting the steel castings, resulting in low cooling efficiency of the steel castings. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a cooling device for steel casting production, which solves the problems of low sealing performance of the existing air cooling device, poor utilization of the air flow direction, causing some air to flow out of the device without contacting the steel castings, and low cooling efficiency of the steel castings.

[0004] In order to achieve the above purpose, the technical scheme adopted by the utility model is:

[0005] A cooling device for steel casting production includes an outer shell, an inner shell is coaxially arranged inside the outer shell, a bottom plate is fixed below the outer shell and the inner shell, and a top plate is fixed above. The internal space of the inner shell is set as a air supply chamber, and the space between the outer shell and the inner shell is set as a cooling chamber. An air inlet fan is installed on the bottom plate at the bottom of the air supply chamber, and an air outlet fan is installed on the top plate at the top of the cooling chamber. A blanking roller is arranged along a spiral track in the cooling chamber, the blanking roller rotates through a central rotating shaft, and both ends of the rotating shaft are fixed to the outer shell and the inner shell respectively. The top of the blanking roller is connected with a feeding slide plate, and the bottom is connected with a discharging slide plate. The ends of the feeding slide plate and the discharging slide plate extend to the outside of the outer shell. The inner shell is provided with ventilation holes to communicate the air supply chamber and the cooling chamber.

[0006] Preferably, a central column is arranged at the center inside the inner shell, the top of the central column is fixed to the top plate, and the bottom is suspended.

[0007] Preferably, the bottom shape of the central column is a conical head.

[0008] Preferably, a spiral air guide plate is fixed between the central column and the inner housing.

[0009] Preferably, an air guide cap is provided at one end of the air supply chamber where the ventilation hole is located, and the air guide cap is fixed to the inner side surface of the inner housing.

[0010] Preferably, the opening direction of the air guide cap is tangential to the radial direction of the inner housing, and the direction of the ventilation hole is consistent with the opening direction of the air guide cap.

[0011] Preferably, support legs are fixed to the bottom of the bottom plate.

[0012] The utility model has the following beneficial effects:

[0013] 1. The outer housing is connected by a bottom plate and a top plate, with high tightness and not easily losing air volume. The steel castings move in a spiral downward manner through the blanking roller. During this process, the ventilation holes from bottom to top by the inlet air blower facilitate cooling and blowing of the spirally downward moving steel castings. Moreover, the blowing and cooling time is long, making the utilization of the air flow direction high and improving the cooling efficiency of the steel castings.

[0014] 2. The inlet air blower can make the air flow rise in a spiral through the spiral air guide plate and enter the cooling chamber through the guide cap, making the air flow direction in the cooling chamber also form a spiral shape, improving the cooling efficiency of the steel castings. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the external structure of the utility model;

[0016] Figure 2 is a schematic diagram of the position of the inlet air blower of the utility model;

[0017] Figure 3 is a longitudinal sectional view of the utility model;

[0018] Figure 4 is a schematic diagram of the distribution of the blanking rollers of the utility model;

[0019] Figure 5 is the utility model Figure 3 magnified view of A;

[0020] Reference numerals: 1. Outer housing; 2. Inner housing; 3. Bottom plate; 4. Top plate; 5. Air supply chamber; 6. Cooling chamber; 7. Inlet air blower; 8. Outlet air blower; 9. Blanking roller; 10. Rotating shaft; 11. Feeding slide plate; 12. Discharging slide plate; 13. Ventilation hole; 14. Central column; 15. Air guide plate; 16. Air guide cap; 17. Support leg. Detailed Description of the Invention

[0021] The following further describes in detail the implementation mode of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0023] As Figures 1-5 shown, in this embodiment, a cooling device for the production of steel castings includes an outer casing 1. An inner casing 2 is coaxially arranged inside the outer casing 1. A bottom plate 3 is fixed below the outer casing 1 and the inner casing 2, and a top plate 4 is fixed above. This increases the overall airtightness. Support legs 17 are fixed to the bottom of the bottom plate 3 for supporting on the ground. The internal space of the inner casing 2 is set as a air supply chamber 5, and the space between the outer casing 1 and the inner casing 2 is set as a cooling chamber 6. The inner casing 2 is provided with ventilation holes 13 to communicate the air supply chamber 5 and the cooling chamber 6. An air inlet fan 7 is installed on the bottom plate 3 at the bottom of the air supply chamber 5, and an air outlet fan 8 is installed on the top plate 4 at the top of the cooling chamber 6. The installation method with the air inlet fan 7 below and the air outlet fan 8 above helps the hot air of the steel casting to flow upward for exhausting. A feeding roller 9 is arranged along a spiral track in the cooling chamber 6. The feeding roller 9 rotates through a central rotating shaft 10. The steel casting is fed by the way of spirally sliding down, so that the rising gas can contact the steel casting multiple times and take away heat, increasing the utilization of the air flow direction. Both ends of the rotating shaft 10 are fixed to the outer casing 1 and the inner casing 2 respectively. The top of the feeding roller 9 is connected with a feeding slide plate 11, and the bottom is connected with a discharging slide plate 12. Due to the self-weight of the steel casting, it slides onto the feeding roller 9 from the feeding slide plate 11 and slides out from the discharging slide plate 12, without the need to provide additional power, saving the cost of the motor. The ends of the feeding slide plate 11 and the discharging slide plate 12 extend outside the outer casing 1.

[0024] A central column 14 is arranged at the center inside the inner casing 2. The top of the central column 14 is fixed to the top plate 4, and the bottom is suspended to avoid being too close to the air inlet fan 7 and causing blockage. The bottom of the central column 14 is in the shape of a conical head, which can play a guiding role for the air inlet fan 7 and avoid blocking the air flow direction. A spiral air guiding plate 15 is fixed between the central column 14 and the inner casing 2 to make the air flow direction in the air supply chamber 5 spiral, so as to facilitate the diffusion of the air flow direction to the cooling chamber 6.

[0025] A wind guide cap 16 is provided at one end of the air vent 13 located in the air supply bin 5, and the wind guide cap 16 is fixed to the inner side surface of the inner housing 2. The opening direction of the wind guide cap 16 is tangential to the radial direction of the inner housing 2, and the direction of the air vent 13 is consistent with the opening direction of the wind guide cap 16, so that the spiral air flow in the air supply bin 5 can more easily enter the cooling bin 6, and a spiral air flow is also formed in the cooling bin 6, increasing the cooling efficiency of the steel casting.

[0026] The working principle of the present utility model is as follows: Start the air inlet fan 7 and the air outlet fan 8, and place the steel casting to be cooled from the feeding slide plate 11. The feeding slide plate slides down along a spiral trajectory on the feeding roller 9. During this period, the upward air flow of the air inlet fan 7 forms a spiral upward shape through the spiral guide plate, and a spiral air flow is also formed in the cooling bin 6 through the air vent, performing air cooling treatment on the sliding steel casting, taking away the surface temperature of the steel casting, and the high-temperature gas rises and flows out from the air outlet fan 8.

[0027] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A cooling device for steel casting production, characterized in that: The invention comprises an outer shell (1), wherein an inner shell (2) is coaxially arranged inside the outer shell (1), a bottom plate (3) is fixed below the outer shell (1) and the inner shell (2), and a top plate (4) is fixed above the top; the internal space of the inner shell (2) is set as an air supply bin (5), and the space between the outer shell (1) and the inner shell (2) is set as a cooling bin (6); an air inlet fan (7) is installed on the bottom plate (3) at the bottom of the air supply bin (5), and an air outlet fan (8) is installed on the top plate (4) at the top of the cooling bin (6); A feed roller (9) is arranged along a spiral track in the cooling bin (6), and the feed roller (9) rotates through a central rotating shaft (10). The two ends of the rotating shaft (10) are respectively fixed to the outer shell (1) and the inner shell (2). The top of the feed roller (9) is connected to a feed slide plate (11), and the bottom is connected to a discharge slide plate (12). The ends of the feed slide plate (11) and the discharge slide plate (12) extend to the outside of the outer shell (1). The inner shell (2) is provided with a vent hole (13) to connect the air supply bin (5) and the cooling bin (6).

2. A cooling device for steel casting production according to claim 1, characterized in that: A central column (14) is arranged at the center of the inner shell (2); the top of the central column (14) is fixed to the top plate (4) and the bottom is suspended.

3. A cooling device for steel casting production according to claim 2, characterized in that: The bottom of the central column (14) is in the shape of a conical head.

4. A cooling device for steel casting production according to claim 3, characterized in that: A spiral air guide plate (15) is fixed between the central column (14) and the inner shell (2).

5. A cooling device for steel casting production according to claim 1, characterized in that: The vent hole (13) is located at one end of the air supply bin (5) and is provided with an air guide cap (16), and the air guide cap (16) is fixed to the inner side surface of the inner shell (2).

6. A cooling device for steel casting production according to claim 5, characterized in that: The opening direction of the air guide cap (16) is tangential to the radial direction of the inner shell (2), and the direction of the vent hole (13) is consistent with the opening direction of the air guide cap (16).

7. A cooling device for steel casting production according to claim 1, characterized in that: A supporting leg (17) is fixed to the bottom of the base plate (3).

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