Anti-cracking high-temperature-resistant platform car type furnace bottom plate

Abstract

The utility model provides a kind of anti-pulling high temperature resistance platform truck type furnace bottom plate including receiving plate, bottom plate and connecting piece, the receiving plate includes receiving pipe and receiving grid, the bottom plate is fixedly connected below the receiving grid, the receiving grid is composed of multiple regular hexagons, the receiving pipe is composed of multiple cylindrical pipes, the cylindrical pipe of the receiving pipe is vertically fixedly connected at the regular hexagon vertex junction of the grid layer, the bottom plate includes bottom plate body, connecting protrusion and square frame, the square frame is fixedly connected on the periphery edge of the receiving grid and is fixedly connected with the bottom plate body, the bottom plate body is square flat plate, the connecting protrusion is fixedly connected on four edges of square frame, the connecting piece is rectangle, opposite two faces of the connecting piece are provided with recess for matching the connecting protrusion, so that multiple identical furnace bottom plate is connected together by the connecting piece.

Description

Technical Field

[0001] This utility model relates to the field of bogie hearth casting equipment, and in particular to a high-temperature resistant bogie hearth bottom plate that is resistant to cracking. Background Technology

[0002] The trolley-type furnace bottom plate is a new type of integrated tooling required for trolley-type resistance furnaces. It serves as a load-bearing component in the heat treatment process of forgings and facilitates the loading and unloading of workpieces.

[0003] In practical applications, the bogie hearth is heated to 1100℃ and the bogie hearth bottom plate and the workpiece it supports are kept at this temperature for several hours before being cooled by natural air. However, the cooling process will generate large internal stress in the bogie hearth bottom plate, which can easily lead to deformation and cracking. Therefore, in order to adapt to this high temperature and high pressure environment, the bogie hearth bottom plate needs to be optimized and improved accordingly. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a crack-resistant, high-temperature resistant trolley-type furnace bottom plate.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: A crack-resistant, high-temperature resistant trolley-type furnace bottom plate includes a receiving plate, a bottom plate, and connecting parts. The receiving plate includes a receiving pipe and a receiving grid. The bottom plate is fixedly connected below the receiving grid. The receiving grid is composed of multiple regular hexagons. The receiving pipe is composed of multiple cylindrical tubes. The cylindrical tubes of the receiving pipe are all vertically fixedly connected to the intersection of the vertices of the regular hexagons of the receiving grid. Each regular hexagon of the receiving grid has a rectangular hole on its inner wall side to facilitate heat dissipation. The bottom edge of the rectangular hole coincides with the bottom plate. The bottom plate includes a bottom plate body, a connecting protrusion, and a square... The frame consists of a square frame fixedly connected to the perimeter of the receiving grid and a bottom fixedly connected to the base plate body. The base plate body is a square flat plate. The connecting protrusions are fixedly connected to the four sides of the square frame. The connecting protrusions are T-shaped and their length is equal to the side length of the square frame. The connector is rectangular and its length is equal to the side length of the square frame. The two opposite sides of the connector have T-shaped grooves that match the connecting protrusions. The grooves penetrate the connector along the long side of the rectangle so that the connecting protrusions can be inserted into them. Multiple identical furnace bottom plates are connected together through the connector.

[0006] Preferably, the top surface of the receiving pipe is on the same plane as the top surface of the receiving grid, the radius of the cylindrical pipe of the receiving pipe is one-third of the side length of the regular hexagon of the receiving grid, the height of the cylindrical pipe is half the height of the regular hexagon, and the height of the rectangular hole of the receiving grid is also half the height of the regular hexagon and does not contact the receiving pipe.

[0007] Preferably, the height of the connector is the same as the combined height of the bottom plate and the supporting plate, so that the top and bottom surfaces of all components are on the same plane after the two furnace bottom plates are spliced ​​together.

[0008] Preferably, the triangles at the four corners formed by the square frame and the receiving grid are solid structures, making the overall structure more stable and more impact-resistant.

[0009] Preferably, the receiving plate, base plate, and connectors are all made of chromium-nickel carbon steel with trace amounts of the metallic elements tungsten, cobalt, and niobium. This material gives all components high-temperature oxidation resistance, wear resistance, and corrosion resistance, and also provides good strength and toughness. The addition of tungsten and cobalt promotes the transformation of all components from austenite to martensite, thereby further improving the strength, toughness, and wear resistance of the metal. The addition of niobium refines the grains, improving the stress resistance of all components, while the carbon element reduces the cracking of the components.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) The hexagonal support grid evenly disperses the stress, reduces stress concentration, enhances structural stability, and reduces the risk of cracking. Combined with the fixed connection support pipe, the overall structure is more stable and has stronger resistance to deformation and cracking. (2) The hexagonal support grid combined with the fixed connection support pipe allows heat to be evenly distributed to each part. At the same time, the rectangular holes of the support grid can dissipate heat more efficiently, improving the heat resistance of the components and avoiding the problem of deformation and cracking caused by excessive heat concentration and inability to dissipate quickly. (3) The furnace bottom plate can be adjusted to a suitable size through the assembly design of the connectors and connecting protrusions, and it is also convenient to replace it after damage. The connecting protrusions are provided all around to facilitate the handling of the furnace bottom plate. Attached Figure Description

[0011] Figure 1 This is a top view of the anti-tear-resistant, high-temperature resistant trolley-type furnace bottom plate of this utility model;

[0012] Figure 2 This is a front view of the anti-tear-resistant, high-temperature resistant trolley-type furnace bottom plate of this utility model;

[0013] Figure 3 This is a front cross-sectional view of the receiving plate portion of the anti-tear-resistant and high-temperature resistant trolley-type furnace bottom plate of this utility model. Detailed Implementation

[0014] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Figure 1 As shown, a crack-resistant, high-temperature resistant trolley-type furnace bottom plate includes a receiving plate 1, a bottom plate 2, and connecting parts 3. The receiving plate 1 includes a receiving pipe 110 and a receiving grid 120. The receiving grid 120 is composed of multiple regular hexagons, and the receiving pipe 110 is composed of multiple cylindrical pipes. The cylindrical pipes of the receiving pipe 110 are all vertically fixedly connected to the intersection of the vertices of the regular hexagons of the receiving grid 120. The bottom plate 2 includes a bottom plate body 210, a connecting protrusion 220, and a square frame 230. The square frame 230 is fixedly connected to the four edges of the receiving grid 120. The base plate body 210 is a square flat plate. The connecting protrusion 220 is fixedly connected to the four sides of the square frame 230. The connecting protrusion 220 has a T-shaped structure and its length is equal to the side length of the square frame 230. The connector 3 is rectangular and its length is equal to the side length of the square frame 230. The two opposite sides of the connector 3 are provided with T-shaped grooves that match the connecting protrusion 220. The grooves penetrate the connector 3 along the long side of the rectangle so that the connecting protrusion 220 can be inserted into them. Multiple identical furnace bottom plates can be connected together through the connector 3.

[0015] like Figure 2 and Figure 3 As shown, the receiving pipe 110 is fixedly connected to the receiving grid 120, and the bottom plate 2 is fixedly connected below the receiving grid 120. The top surface of the receiving pipe 110 and the top surface of the receiving grid 120 are on the same plane to facilitate the stable placement of items to be processed in the furnace. The radius of the cylindrical tube of the receiving pipe 110 is one-third of the side length of the regular hexagon of the receiving grid 120, and the height of the cylindrical tube is half the height of the regular hexagon. This design ensures that the structures of the fixedly connected receiving pipe 110 and the receiving grid 120 do not damage each other and evenly distributes the stress and heat on the entire furnace bottom plate, reducing the risk of cracking of the furnace bottom plate. Each regular hexagon of the receiving grid 120 has a rectangular hole 121 on its inner wall to facilitate air circulation and heat dissipation. The bottom edge of the rectangular hole 121 coincides with the bottom plate 2, and the height of the rectangular hole 121 is half the height of the regular hexagon and does not contact the receiving pipe 110 to avoid mutual interference.

[0016] In use, a certain number of the bottom plates 2 and the connectors 3 are selected according to the usage requirements and inserted into the grooves of the connectors 3 through the connecting protrusions 220 to form a furnace bottom plate of a suitable size for the usage requirements. Due to the T-shaped connecting protrusions 220 and grooves, the furnace bottom plate is relatively stable and difficult to shift after connection due to the high mass of the connection. The regular hexagonal support grid 120, together with the fixed connection support pipe 110, evenly distributes the stress and heat on the entire furnace bottom plate, giving the furnace bottom plate good crack resistance and high temperature resistance.

[0017] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high-temperature resistant, crack-resistant trolley-type furnace bottom plate, comprising a supporting plate, a bottom plate, and connecting parts, characterized in that: The receiving plate includes a receiving tube and a receiving grid. The base plate is fixedly connected to the bottom of the receiving grid. The receiving grid is composed of multiple regular hexagons, and the receiving tube is composed of multiple cylindrical tubes. The cylindrical tubes of the receiving tube are all vertically fixedly connected to the intersection of the vertices of the regular hexagons of the receiving grid. Each regular hexagon of the receiving grid has a rectangular hole on its inner wall edge, and the bottom edge of the rectangular hole coincides with the base plate. The base plate includes a base plate body, a connecting protrusion, and a square frame. The square frame is fixedly connected to the four edges of the receiving grid, and the bottom of the square frame is fixedly connected to the base plate body. The base plate body is a square flat plate. The connecting protrusion is fixedly connected to the four sides of the square frame. The connecting protrusion has a T-shaped structure and its length is equal to the side length of the square frame. The connector is rectangular and its length is equal to the side length of the square frame. The two opposite sides of the connector have T-shaped grooves that match the connecting protrusions, and the grooves penetrate the connector along the long side of the rectangle so that the connecting protrusions can be inserted into them.

2. The anti-tear-resistant, high-temperature resistant bogie-type furnace bottom plate as described in claim 1, characterized in that: The top surface of the receiving pipe is on the same plane as the top surface of the receiving grid. The radius of the cylindrical tube of the receiving pipe is one-third of the side length of the regular hexagon of the receiving grid, and the height of the cylindrical tube is half the height of the regular hexagon. The height of the rectangular hole of the receiving grid is also half the height of the regular hexagon and it does not contact the receiving pipe.

3. The anti-tear-resistant, high-temperature resistant bogie-type furnace bottom plate as described in claim 1, characterized in that: The height of the connector is the same as the combined height of the bottom plate and the supporting plate, so that the top and bottom surfaces of all components are on the same plane after the two furnace bottom plates are spliced ​​together.

4. The anti-tear-resistant, high-temperature resistant bogie-type furnace bottom plate as described in claim 1, characterized in that: The triangles at the four corners formed by the square border and the receiving grid are solid structures.

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