Frame structure of high-temperature tunnel furnace

Abstract

The utility model discloses a high-temperature tunnel furnace frame structure which is characterized in that a frame of a tunnel furnace is divided into a front frame, a middle frame and a rear frame, the front frame and the rear frame are fixed through end faces, other inner frames are of a floating structure, the upper end of the floating structure is made of a bent metal plate, the thickness direction of the bent plate is consistent with the expansion and stretching direction of the tunnel furnace, and rigidity is weak. Rollers are welded to the lower portion of the inner frame, and limiting grooves are formed below the rollers and welded to the bottom frame. The rollers are in rolling contact with the limiting grooves. The frame is provided with a concentrated expansion absorption position, after the front frame and the rear frame are fixed to the ground, in the using process of the tunnel furnace, the inner frames are heated to expand, all the inner frames move according to the preset deformation square of the frame under the deformation supporting force of the inner plates, and finally the inner frames are concentrated at independent expansion openings. And a brand-new solution is provided for related industries.

Description

Technical Field

[0001] This utility model relates to the field of tunnel furnace frame technology, and in particular to high-temperature tunnel furnace frame structure. Background Technology

[0002] A relatively long tunnel furnace can be assembled from a frame. The tunnel furnace frame is generally divided into inner and outer layers. The inner frame fixes the inner liner and is used to heat the products at a higher temperature, while the outer frame is closer to the external environment and has a relatively lower temperature. During operation and shutdown, the temperature of the inner frame changes, causing the inner liner to undergo periodic changes of thermal expansion and contraction. Therefore, the elastic seal requires a certain amount of deformation space to accommodate expansion and contraction at different temperatures. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a high-temperature tunnel furnace frame structure, which solves the problems described above.

[0004] This utility model also provides a high-temperature tunnel furnace frame structure, including: the tunnel furnace frame is composed of assembled frames, divided into an outer frame and an inner frame, characterized in that a bottom frame is provided at the bottom of the outer frame and the inner frame, and a front fixed frame, a middle frame and a rear fixed frame are respectively provided in the inner frame.

[0005] According to the high-temperature tunnel furnace frame structure, the front fixed frame is welded to the bottom frame to form a whole, while the rest of the frame is floating.

[0006] According to the high-temperature tunnel furnace frame structure, the intermediate frame is a fully floating frame.

[0007] According to the high-temperature tunnel furnace frame structure, the rear fixed frame, like the front fixed frame, has its end face welded together with the bottom frame to form a whole.

[0008] According to the high-temperature tunnel furnace frame structure, the lower part of the inner frame is welded with rollers, and a limiting groove is provided under the rollers. The limiting groove is welded to the bottom frame, and the rollers make rolling contact with the limiting groove. The frame is provided with a centralized expansion absorption position.

[0009] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0011] Figure 1 This is a three-dimensional structural diagram of the frame structure of the high-temperature tunnel furnace of this utility model;

[0012] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0013] Figure 3 This is a side view structural diagram of the high-temperature tunnel furnace frame structure of this utility model;

[0014] Figure 4 for Figure 3 Enlarged view of the structure at point B in the middle;

[0015] Figure 5 This is a front view structural diagram of the frame structure of the high-temperature tunnel furnace of this utility model.

[0016] Legend:

[0017] 1. Outer frame; 2. Inner frame; 3. Bottom frame; 4. Front fixed frame; 5. Middle frame; 6. Rear fixed frame; 201. Roller; 202. Limiting groove. Detailed Implementation

[0018] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0019] Reference Figure 1-5 The high-temperature tunnel furnace frame structure of this utility model includes: the tunnel furnace frame is composed of assembled frames, divided into an outer frame 1 and an inner frame 2, characterized in that a bottom frame 3 is provided at the bottom of the outer frame 1 and the inner frame 2, and a front fixed frame 4, a middle frame 5 and a rear fixed frame 6 are respectively provided in the inner frame 2.

[0020] The front fixed frame 4 is welded to the bottom frame 3 to form a whole, while the rest of the frame is floating.

[0021] The middle frame 5 is a fully floating frame.

[0022] The rear fixed frame 6 is the same as the front fixed frame 1, with its end face welded together with the bottom frame 3 to form a whole.

[0023] A roller 201 is welded to the lower part of the inner frame 2. A limiting groove 202 is provided below the roller 201. The limiting groove 202 is welded to the bottom frame 3. The roller 201 and the limiting groove 202 make rolling contact. The frame is provided with a centralized expansion absorption position.

[0024] Working Principle: The tunnel furnace frame is divided into front, middle, and rear frames. The front and rear frames are fixed at their ends, while the remaining inner frames adopt a floating structure. The upper part of the floating mechanism is made of bent sheet metal, with the thickness direction of the bent plate aligned with the expansion and contraction direction of the tunnel furnace, resulting in relatively weak rigidity. Rollers are welded to the lower part of the inner frame, with limit grooves below the rollers. The limit grooves are welded to the bottom frame, and the rollers make rolling contact with the limit grooves. This frame has a centralized expansion absorption point. After the front and rear frames are fixed to the ground, when the tunnel furnace is in use, the internal frames expand due to heat. Under the deformation support of the inner plates, all the internal frames are displaced according to the pre-set square deformation of the frame, finally converging at the independent expansion port. This design is a brand-new frame structure, providing a new solution for related industries.

[0025] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A high temperature tunnel furnace frame structure comprising: The tunnel furnace frame is combined by assembled frames, and is divided into an outer frame and an inner frame, characterized in that the bottom of the outer frame and the inner frame is provided with a bottom frame, and the inner frame is respectively provided with a front fixed frame, a middle frame and a rear fixed frame.

2. The high-temperature tunnel furnace frame structure according to claim 1, characterized in that, The front fixed frame is welded with the bottom frame as a whole, and the rest positions are floating.

3. The high temperature tunnel furnace frame structure according to claim 1, wherein, The middle frame is a full-floating frame.

4. The high temperature tunnel furnace frame structure of claim 1, wherein, The rear fixed frame is the same as the front fixed frame, and the end face is welded with the bottom frame as a whole.

5. The high temperature tunnel furnace frame structure according to claim 1, wherein, The inner frame lower part is welded with a roller, the lower part of the roller is provided with a limiting groove, the limiting groove is welded with the bottom frame, the roller is in rolling contact with the limiting groove, and the frame is provided with a centralized expansion absorption position.

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