Novel sealing structure of zinc impregnation furnace

Abstract

The utility model discloses a novel sealing structure of a zinc impregnation furnace, and relates to the technical field of zinc impregnation furnaces, the novel sealing structure comprises a furnace body, and the upper surface of the furnace body comprises a side wing structure; a side wing structure is arranged on the edge of the lower surface of the furnace cover and can directly face the side wings of the furnace body when being buckled; the sealing plate is strip-shaped, is mounted on the lower surface of the furnace cover side wing, is arranged along the inner contour of the furnace cover side wing, and is made of copper; the fixing studs are rotationally connected to the outer side edges of the furnace body side wings, fixing grooves allowing the fixing studs to rotate therein are formed in the positions, right opposite to the fixing studs, of the edge positions of the furnace cover side wings, the fixing studs are in threaded connection with fixing nuts, the fixing nuts abut against the furnace cover side wings, and the furnace cover tightly presses the sealing plate towards the furnace body. The zinc impregnation furnace has the effects that the preparation efficiency before the zinc impregnation furnace is used is improved, and the sealing performance is improved.

Description

Technical Field

[0001] The present application relates to the technical field of sherardizing furnaces, and in particular to a novel sealing structure of a sherardizing furnace. Background Art

[0002] The sherardizing furnace is a device used for surface sherardizing of fasteners and other parts. When in use, the parts and zinc powder are placed in the sherardizing furnace for heating and continuous tumbling. Therefore, the sealing degree of the sherardizing furnace will have a direct impact on the sherardizing effect of the product.

[0003] In the previous generation product with application number CN202321910317.X, the cover of the zincizing furnace is sealed by slotting and filling cotton felt to press it. It is found in long-term use that the cover will move when sealed in this way, especially when the zincizing furnace is rotating, the cotton felt on both sides will be pressed differently, which will reduce the sealing effect and cause zinc powder to extend to the cotton felt. In addition, cotton felt is a consumable and needs to be replaced every time it is used, which leads to the problem of low efficiency of zincizing preparation work. Utility Model Content

[0004] The purpose of the utility model of the present application is to improve the problems of poor efficiency and sealing of the existing shearing furnace in the shearing preparation. The present application provides a new sealing structure for the shearing furnace.

[0005] The present application provides a novel sealing structure for a zincizing furnace using the following technical solutions:

[0006] A novel sealing structure of a zincizing furnace, comprising

[0007] A furnace body, the upper surface of which includes a wing structure;

[0008] The furnace cover has a side wing structure on the lower edge, which can be aligned with the side wing of the furnace body when buckled;

[0009] The sealing plate is in the shape of a long strip and is installed on the lower surface of the furnace cover wing and is set along the inner contour of the furnace cover wing. The material is copper;

[0010] The fixing stud is rotatably connected to the outer edge of the furnace body side wing. A fixing groove for the fixing stud to rotate is opened at the edge of the furnace cover side wing opposite to the fixing stud. The fixing stud is threadedly connected with a fixing nut, which is tightly pressed against the furnace cover side wing, and the furnace cover presses the sealing plate against the furnace body.

[0011] Optionally, a mounting hole is provided on the lower surface of the sealing plate, a countersunk groove is provided at the bottom of the mounting hole, a mounting bolt passes through the mounting hole, and the mounting bolt passes through the side wing of the furnace cover and is threadedly connected with a mounting nut.

[0012] Optionally, the connection between two adjacent sealing plates is welded.

[0013] Optionally, the side wings on both sides of the length direction of the furnace cover are tilted upward, and the side wings corresponding to the furnace body are also tilted upward. The sealing plates on both sides of the width direction of the furnace cover are tilted upward along the side wings and then connected to another sealing plate by the ends.

[0014] Optionally, the sealing plates on the upwardly inclined side wings of the furnace cover are not connected to the edges of the inner cavity of the furnace cover.

[0015] Optionally, the sealing plate thickness ranges from 6 to 8 mm.

[0016] Optionally, the sealing plate width ranges from 40-60 mm.

[0017] By adopting the above technical solution,

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] The copper sealing plate is fixedly installed to replace the original cotton felt replacement and installation. When the furnace cover and furnace body are installed and heated, the gap is filled by the thermal expansion of the sealing plate. At the same time, the hardness of the metal is used to improve the stability of the sealing plates on both sides when the furnace body rotates, thereby improving the sealing effect and saving time.

[0020] The sealing plate body is fixed by bolts, and welding is used only between adjacent sealing plates, which effectively improves the firmness of the sealing plate installation and reduces the phenomenon that the air generated by the thermal expansion after the overall welding will expand the weld or partially bulge, thereby improving the sealing effect of the sealing plate after thermal expansion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0022] Figure 2 It is a partial exploded view showing the sealing plate.

[0023] In the figure, 1, furnace body; 11, fixing stud; 12, fixing nut; 2, furnace cover; 21, fixing groove; 3, sealing plate; 31, mounting hole; 32, countersunk hole; 33, mounting bolt; 34, mounting nut. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-2 This application is described in further detail.

[0025] The embodiment of the present application discloses a novel sealing structure for a sherardizing furnace.

[0026] refer to Figure 1 and Figure 2 The novel sealing structure of the zincizing furnace includes a furnace body 1, a furnace cover 2 and a sealing plate 3. The upper surface of the furnace body 1 contains a wing structure, and the edge of the lower surface of the furnace cover 2 also contains a wing structure. After the furnace cover 2 is buckled on the furnace body 1, the wing structures are opposite to each other and parallel. The wing structures on both sides of the length direction of the furnace cover 2 are tilted upward, and the opposite side wings of the furnace body 1 are also tilted upward. A plurality of fixing studs 11 are rotatably connected to the outer edge of the side wing of the furnace body 1, and a fixing groove 21 for the fixing stud 11 to rotate is provided at the edge of the side wing of the furnace cover 2 opposite to the fixing stud 11. The fixing stud 11 is threadedly connected to a fixing nut 12, and the fixing nut 12 is tightly pressed against the side wing of the furnace cover 2.

[0027] There are four sealing plates 3, which are installed on the lower surface of the four side wings of the furnace cover 2 and are connected to each other. The material of the sealing plate 3 is copper. A plurality of mounting holes 31 are equidistantly provided on the lower surface of the sealing plate 3, and a countersunk hole 32 is provided at the bottom of the mounting hole 31. A mounting bolt 33 is inserted into the mounting hole 31, and the mounting bolt 33 penetrates the side wing of the furnace cover 2 and is threadedly connected with a mounting nut 34, thereby fixing the sealing plate 3 on the side wing of the furnace cover 2. The sealing plates 3 on both sides of the width direction of the furnace cover 2 are arranged upwardly tilted along the side wing, and are welded and fixed to another sealing plate 3 by the end, thereby forming a frame structure with four sealing plates 3. The sealing plates 3 on the upwardly tilted side wings of the furnace cover 2 are not connected to the edge of the inner cavity of the furnace cover 2, providing a suitable distance for the bending of adjacent sealing plates 3. The thickness range of the sealing plate 3 is 6-8mm, and the embodiment is 8mm. The width range of the sealing plate 3 is 40-60mm, and the embodiment is 50mm.

[0028] The copper sealing plate 3 is used to replace the previous cotton felt material, which not only saves the time required for each replacement of the cotton felt, but also can achieve good sealing through the expansion of the copper sealing plate 3 after being heated. At the same time, because it is a metal material, it has a certain hardness and the probability of deformation due to the pressure during the rotation of the furnace body 1 is low, thereby ensuring the sealing effect while improving the stability of the installation of the furnace cover 2, and reducing the leakage of zinc powder. The sealing plate 3 and the furnace cover 2 are detachably installed by bolts and nuts, rather than integrally welded, so that the edge of the sealing plate 3 and the furnace cover 2 can have a certain gap, and the gap can be compressed by expansion during thermal expansion, reducing the situation where the residual air in the middle part expands after the overall welding and stretches the weld. The welding setting between the sealing plates 3 effectively improves the integrity between the sealing plates 3, not only improves the heat transfer efficiency between adjacent sealing plates 3, but also reduces the probability of leakage between adjacent sealing plates 3.

[0029] The implementation principle of a new sealing structure of a zinc-diffusion furnace in an embodiment of the present application is as follows: a copper sealing plate 3 is used to replace the previous cotton felt material, which not only saves the time required for replacing the cotton felt each time, but also can achieve good sealing through the expansion of the copper sealing plate 3 after being heated. At the same time, because it is a metal material with a certain hardness, the probability of deformation due to the pressure during the rotation of the furnace body 1 is low, thereby ensuring the sealing effect while improving the stability of the installation of the furnace cover 2.

[0030] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A novel sealing structure for a zincizing furnace, characterized in that: include A furnace body (1) having a wing structure on its upper surface; The furnace cover (2) has a side wing structure at the edge of the lower surface, and can be directly opposite to the side wing of the furnace body (1) when buckled; The sealing plate (3) is in the shape of a long strip and is installed on the lower surface of the side wing of the furnace cover (2) and is arranged along the inner contour of the side wing of the furnace cover (2). The material is copper; A fixing stud (11) is rotatably connected to the outer edge of the side wing of the furnace body (1); a fixing groove (21) for the fixing stud (11) to rotate into is provided at the edge of the side wing of the furnace cover (2) directly opposite to the fixing stud (11); the fixing stud (11) is threadedly connected to a fixing nut (12); the fixing nut (12) is pressed against the side wing of the furnace cover (2); and the furnace cover (2) presses the sealing plate (3) against the furnace body (1).

2. A novel sealing structure for a zincizing furnace according to claim 1, characterized in that: A mounting hole (31) is provided on the lower surface of the sealing plate (3), a countersunk groove is provided at the bottom of the mounting hole (31), a mounting bolt (33) passes through the mounting hole (31), and the mounting bolt (33) passes through the side wing of the furnace cover (2) and is threadedly connected with a mounting nut (34).

3. A novel sealing structure for a zincizing furnace according to claim 2, characterized in that: The connection between two adjacent sealing plates (3) is welded.

4. A novel sealing structure for a zincizing furnace according to claim 3, characterized in that: The side wings on both sides of the furnace cover (2) in the length direction are arranged to be tilted upwards, and the corresponding side wings of the furnace body (1) are also arranged to be tilted upwards. The sealing plates (3) at both ends of the furnace cover (2) in the width direction are arranged to be tilted upwards along the side wings and then connected to another sealing plate (3) at the end.

5. A novel sealing structure for a sherardizing furnace according to claim 4, characterized in that: The sealing plate (3) on the upwardly inclined side wing of the furnace cover (2) is not connected to the edge of the inner cavity of the furnace cover (2).

6. A novel sealing structure for a zincizing furnace according to claim 1, characterized in that: The thickness of the sealing plate (3) is in the range of 6-8 mm.

7. A novel sealing structure for a zincizing furnace according to claim 1, characterized in that: The width of the sealing plate (3) is in the range of 40-60 mm.

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