Bearing and moving bottom plate device of electric annealing furnace

Abstract

The utility model discloses a bearing and moving bottom plate device of an electric annealing furnace, which is provided with a base trolley, the bottom of the base trolley is provided with a traveling wheel mechanism, the traveling wheel mechanism travels along a running track laid in a furnace body of the electric annealing furnace, and two side edges of the bottom of the base trolley are also provided with protective side plates; a reinforced refractory brick layer is laid on the base trolley, and a plurality of transversely arranged steel bar shelves are placed on the reinforced refractory brick layer; the reinforced refractory brick layer comprises positioning clamping bodies arranged at the two ends of the top face of the movable trolley, a refractory brick masonry combination is tightly clamped and laid between the two positioning clamping bodies, and the refractory brick masonry combination is divided into a left side refractory brick set, a right side refractory brick set and a middle extrusion brick set; the refractory brick layer laid on the base trolley is a reinforced refractory brick layer, the refractory bricks on the refractory brick layer are laid from the middle to the two ends in an extrusion mode, all the refractory bricks are connected more tightly and stably, and therefore stable work of the whole refractory brick layer is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for annealing mold steel bars, and in particular to a device for supporting a movable base plate for an electric annealing furnace. Background Technology

[0002] In mold steel production workshops, many steel bars require annealing heat treatment. This step is usually carried out using a large electrically heated annealing furnace. Multiple steel bars are placed on a mobile trolley, which then moves into the furnace chamber for annealing. These mobile trolleys are typically lined with refractory bricks to prevent deformation and damage from prolonged heating. However, over time, the pressure and impacts from the tens of meters long steel bars cause the refractory bricks to easily break and loosen, failing to provide adequate protection. Therefore, the refractory bricks on the trolley need to be maintained, repaired, or replaced periodically, which is time-consuming, labor-intensive, and economically costly. Therefore, how to improve the service life of the mobile trolley by using refractory bricks is a topic worthy of study. Utility Model Content

[0003] The purpose of this invention is to address the above-mentioned issues by providing a mobile base plate device for an electric annealing furnace. This device can significantly extend the service life of the furnace by improving the refractory brick laying structure on the base trolley.

[0004] The specific solution of this utility model is as follows: a mobile base plate device for supporting an electric annealing furnace, comprising a base trolley, a traveling wheel mechanism at the bottom of the base trolley, the traveling wheel mechanism traveling along a running track laid inside the electric annealing furnace, and protective side plates provided on both sides of the bottom of the base trolley; a reinforced refractory brick layer is laid on the base trolley, and several horizontally arranged steel rods are placed on the reinforced refractory brick layer; the reinforced refractory brick layer includes positioning clamps located at both ends of the top surface of the mobile trolley, the inner side of the positioning clamps having a V-shaped surface structure, and a refractory brick masonry assembly tightly clamped between the two positioning clamps, the refractory brick masonry assembly being divided into a left refractory brick group, a right refractory brick group, and a middle extrusion brick group, the middle extrusion brick group being a shuttle shape that is wide in the middle and pointed at both ends, the middle extrusion brick group simultaneously extruding the left and right refractory brick groups from the middle to both sides.

[0005] Furthermore, the left and right refractory brick groups described in this utility model are arranged symmetrically, each consisting of several refractory bricks arranged in a dense, inclined manner, with the overall inclination direction tilting from both sides towards the V-shaped surface structure of the corresponding positioning clamp.

[0006] Furthermore, the intermediate extrusion brick assembly described in this utility model is formed by densely splicing together several trapezoidal refractory bricks.

[0007] Furthermore, the positioning clamp described in this utility model is made of high-temperature resistant steel plate.

[0008] Furthermore, the protective side plates described in this utility model are located on both sides of the bottom of the base trolley, and the protective side plates cover the traveling wheels of the base trolley.

[0009] Furthermore, the base trolley described in this utility model includes a base plate, and the walking wheel mechanism includes several sets of walking wheels and a drive mechanism, which drives the walking wheels to move along the running track.

[0010] Furthermore, the side cross-section of the steel bar shelf described in this utility model is trapezoidal, and several heat dissipation holes are also provided on the waist of the steel bar shelf.

[0011] This utility model has the following beneficial effects:

[0012] 1. In this utility model, the refractory brick layer laid on the base trolley is a reinforced refractory brick layer. The refractory bricks on top are laid by extrusion from the middle to both ends, making the connection between each refractory brick more tight and stable. Simple collisions will not loosen it, which ensures the stable operation of the entire refractory brick layer and greatly extends the overall service life.

[0013] 2. In this utility model, protective side plates are provided on both sides of the walking wheel mechanism of the base trolley. In this way, although the upper steel bar is subjected to high temperature, the lower walking wheel mechanism and the base trolley itself are isolated by the protective side plates, and the heat treatment effect is still much better, which also improves the service life of the base trolley. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure from the main view direction of this utility model;

[0015] Figure 2 This is a top view structural diagram of this utility model;

[0016] Figure 3 This is a side view structural diagram of the present invention;

[0017] Figure 4 This is a top view structural diagram of the reinforced refractory brick layer in this utility model;

[0018] Figure 5 yes Figure 4 Enlarged schematic diagram of the structure at point K.

[0019] In the diagram: 1—base trolley, 2—protective side plate, 3—reinforced refractory brick layer, 4—steel bar shelf, 5—positioning clamp, 6—walking wheel mechanism, 7—heat dissipation hole, 8—left side refractory brick group, 9—middle extruded brick group, 10—right side refractory brick group. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," etc., indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] See Figures 1-5This utility model relates to a mobile base plate device for supporting an electric annealing furnace. It includes a base trolley 1, with a traveling wheel mechanism 6 mounted on its bottom. The traveling wheel mechanism travels along a track laid inside the electric annealing furnace. Protective side plates 2 are also provided on both sides of the bottom of the base trolley. A reinforced refractory brick layer 3 is laid on top of the base trolley, and several horizontally arranged steel bar shelves 4 are placed on top of the reinforced refractory brick layer. Furthermore, the side cross-section of the steel bar shelves in this utility model is trapezoidal. Several heat dissipation holes 7 are also provided in the waist area; the reinforced refractory brick layer includes positioning clamps 5 set at both ends of the top surface of the mobile trolley. The inner surface of the positioning clamps has a V-shaped structure. A refractory brick masonry assembly is tightly clamped between two positioning clamps. The refractory brick masonry assembly is divided into a left refractory brick group 8, a right refractory brick group 10, and a middle extrusion brick group 9. The middle extrusion brick group is a shuttle shape that is wide in the middle and pointed at both ends. The middle extrusion brick group simultaneously extrudes the left and right refractory brick groups from the middle to both sides. Furthermore, in this utility model, the left and right refractory brick groups are symmetrically arranged and are formed by several refractory bricks arranged obliquely and densely. The oblique direction is generally inclined from both sides towards the middle towards the V-shaped structure of the corresponding positioning clamp. Furthermore, in this utility model, the middle extrusion brick group is formed by several trapezoidal refractory bricks densely spliced ​​together.

[0023] Furthermore, in this embodiment, the positioning clamp is made of high-temperature resistant steel plate. Furthermore, in this invention, the protective side plates are located on both sides of the bottom of the base trolley, and the protective side plates cover the traveling wheels of the base trolley. Furthermore, in this invention, the base trolley includes a base plate, and the traveling wheel mechanism includes several sets of traveling wheels and a drive mechanism, the drive mechanism driving the traveling wheels to move along the running track.

[0024] The most important component of this invention is the reinforced refractory brick layer, which is constructed according to the design. This includes a left-side refractory brick group 8, a right-side refractory brick group 10, and a middle extrusion brick group 9. The middle extrusion brick group is constructed in a shuttle shape, wider in the middle and tapering at both ends, creating a pressing effect to both sides. The left-side and right-side refractory brick groups 8 and 10 are constructed in an arrowhead shape, uniformly forming a... Figure 4 , Figure 5 As shown in the structural form, the entire refractory brick is clamped by two positioning clamps made of steel plates on the left and right sides, forming a form of squeezing from the middle to both sides and then squeezing from both ends to the middle. This can firmly compress the refractory brick layer, making it difficult to loosen and further improving the service life of the refractory brick layer.

[0025] The reason for setting heat dissipation holes in the waist of the steel bar shelf is to ensure that the steel bars on it are heated more evenly; the protective side plates on both sides of the bottom are to better shield the heat radiation inside the furnace, protect the relevant body structure, and improve the overall service life.

[0026] In this invention, the refractory brick layer laid on the base trolley is a reinforced refractory brick layer. The refractory bricks are laid by extrusion from the middle to both ends, resulting in a tighter and more stable connection between each brick. Simple collisions will not cause them to loosen, thus ensuring the stable operation of the entire refractory brick layer and greatly extending its overall service life. In this invention, protective side plates are provided on both sides of the traveling wheel mechanism of the base trolley. Although the upper steel rods are subjected to high temperatures, the lower traveling wheel mechanism and the base trolley itself are protected by the side plates, resulting in better heat dissipation and further extending the service life of the base trolley.

Claims

1. An electric annealing furnace carrying moving floor device, having a base trolley, the bottom of which is equipped with a traveling wheel mechanism, which travels along a running track laid inside the furnace body of the electric annealing furnace, characterized in that: The bottom two sides of the base trolley are further provided with protective side plates; a reinforced firebrick layer is laid on the base trolley, and a plurality of steel bar racks arranged transversely are placed on the reinforced firebrick layer; the reinforced firebrick layer comprises positioning clamps arranged at the two ends of the top surface of the moving trolley, the inner side of the positioning clamp is in a V-shaped surface structure, the firebrick masonry combination is tightly clamped between the two positioning clamps, the firebrick masonry combination is divided into a left firebrick group, a right firebrick group and a middle extruded brick group, the middle extruded brick group is in a shuttle shape with a wide middle and pointed ends, and the middle extruded brick group simultaneously extrudes the left firebrick group and the right firebrick group from the middle to both sides.

2. An electric annealing furnace load carrying mobile floor apparatus as claimed in claim 1 wherein: The left firebrick group and the right firebrick group are arranged symmetrically left and right, and each is formed by a plurality of firebricks arranged densely and obliquely, and the oblique direction is from both sides to the middle towards the V-shaped surface structure of the corresponding positioning clamp.

3. An electric annealing furnace load carrying mobile floor apparatus as defined in claim 1 wherein: The middle extruded brick group is formed by a plurality of trapezoidal firebricks arranged densely.

4. An electric annealing furnace load carrying mobile floor apparatus as defined in claim 1 wherein: The positioning clamp is made of high-temperature-resistant steel plate.

5. An electric annealing furnace load carrying mobile floor apparatus as defined in claim 1 wherein: The protective side plates are located on the bottom two sides of the base trolley, and the protective side plates shield the running wheels of the base trolley.

6. An electric annealing furnace load carrying mobile floor apparatus as defined in claim 1 wherein: The base trolley comprises a trolley bottom plate, the running wheel mechanism comprises a plurality of groups of running wheels and a driving mechanism, and the driving mechanism drives the running wheels to move along the running track.

7. An electric annealing furnace load carrying mobile floor apparatus as defined in claim 1 wherein: The side section of the steel bar rack is in a trapezoidal shape, and a plurality of heat dissipation holes are further arranged in the waist part of the steel bar rack.

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