Heating disc mounting structure for heating furnace

Abstract

The utility model relates to the technical field of heating furnaces, in particular to a heating plate mounting structure for a heating furnace, which comprises a furnace seat, a plate body arranged at the bottom of the inner side of the furnace seat and an electric heating wire mounted at the upper end of the plate body, and three support blocks propped against the lower end of the furnace seat are fixedly connected to the bottom of the inner side of the furnace seat in an annular array. According to the utility model, the original heating plate mounting structure is scientifically and reasonably improved, the limiting convex block, the upper circular hole, the lower elliptical hole, the positioning block and the positioning hole are arranged on the original plate body, and meanwhile, the supporting block, the positioning column, the rotating shaft, the elliptical locking block and the rotating plate are arranged on the furnace seat; the tool-free quick assembly and disassembly operation between the heating plate and the furnace base can be achieved, the workload and difficulty of assembly or disassembly of the heating plate are effectively reduced, and therefore the convenience and efficiency of early-stage assembly and machining and later-stage disassembly, overhaul and maintenance operation of the heating plate are improved.

Description

Technical Field

[0001] This utility model relates to the field of heating furnace technology, and in particular to a heating plate mounting structure for a heating furnace. Background Technology

[0002] Pit furnaces are periodic operation furnaces suitable for heat treatment of rod-shaped and long shaft-shaped parts. The structure of a pit furnace is a deep cylindrical well; workpieces are vertically loaded into the furnace for heating using a specialized crane. The fuels used are typically coal gas and oil. When electricity is used as the heat source, it is called a pit-type resistance furnace. Pit furnaces are generally installed below the workshop floor level, but some are installed above ground level, or partially above and below ground level. Names for pit furnaces include: forced convection pit furnace, natural convection pit furnace, and pit-type gas carburizing furnace.

[0003] like Figure 4 As shown, this is the heating plate installation structure used in the previous generation of pit-type heating furnaces. The original heating plate was supported by multiple annularly distributed internal spiral cylinders on the inside of the furnace base, and then the heating plate was locked and fixed between the furnace base and the internal spiral cylinders by fastening bolts. However, this heating plate installation structure has the following shortcomings in actual use: the above installation structure requires operators to use tools. Since the furnace body of the pit-type heating furnace is relatively deep and the internal space is relatively small, the workload and difficulty of operators in installing or disassembling the heating plate are relatively large, resulting in low convenience and efficiency of the initial assembly and processing of the heating plate and the subsequent disassembly, inspection and maintenance operations.

[0004] In view of this, it is particularly important to design and manufacture a heating plate installation structure that enables tool-free quick installation or disassembly between the furnace base and the plate body, while ensuring the safety and efficiency of the entire installation and disassembly operation. Utility Model Content

[0005] The purpose of this utility model is to solve the problem that the existing heating plate installation structure for heating furnaces requires operators to use tools during the actual installation and disassembly process, and the entire installation and disassembly process is not convenient and inefficient. Therefore, a heating plate installation structure for heating furnaces is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A heating plate mounting structure for a heating furnace includes a furnace base, a plate body disposed at the bottom inner side of the furnace base, and an electric heating wire mounted on the upper end of the plate body. The bottom inner side of the furnace base is fixedly connected in a circular array with three support blocks that abut against the lower end of the furnace base. A locking mechanism is provided between the furnace base and the plate body for tool-free quick installation or disassembly of the plate body between the furnace base and the support blocks.

[0008] As a further description of the above technical solutions:

[0009] The outer part of the disc body is fixedly connected with a positioning block above each of the three supporting blocks, the upper end of the supporting block is integrally fixedly connected with a positioning column penetrating through the positioning block, and the positioning block is provided with a positioning hole corresponding to the positioning column.

[0010] As a further description of the above technical solutions:

[0011] The lock disc mechanism comprises three limiting protrusions fixed in an annular array on the outer part of the disc body, three rotating shafts rotatably installed on the furnace seat in an annular array and penetrating through the limiting protrusions upward, an oval lock block fixed on the upper end of the rotating shaft, an upper circular hole provided on the upper end of the limiting protrusion and used for accommodating the oval lock block, and a lower oval hole provided on the lower end of the limiting protrusion and used for the oval lock block to slide into the upper circular hole upward.

[0012] As a further description of the above technical solutions:

[0013] The lower end of the rotating shaft is fixedly connected with a rotating plate, and the lower end of the furnace seat is provided with a right-angle rotating groove outside the rotating shaft and the rotating plate.

[0014] As a further description of the above technical solutions:

[0015] A locking part is arranged between the rotating plate and the right-angle rotating groove to prevent the rotating plate from being rotated out of the right-angle rotating groove by force.

[0016] As a further description of the above technical solutions:

[0017] The locking part comprises an outer threaded column rotatably installed on the free end of the rotating plate, a knob installed on the outer end of the outer threaded column, and an inner threaded sleeve fixed on the inner side of the right-angle rotating groove and matched with the inner end of the outer threaded column.

[0018] As described above, due to the adoption of the above technical solutions, the beneficial effects of the present application are:

[0019] The utility model discloses a heating disc mounting structure for heating furnace, including furnace base and disc body, the disc body is installed on the furnace base, the disc body is provided with the electric heating wire, the limiting lug, the upper circular hole, the lower oval hole, the positioning block and the positioning hole, the furnace base is provided with the support block, the positioning column, the pivot, the oval lock block and the rotary plate, the pivot is provided with the external screw column and the knob. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A structure schematic diagram of the heating disc mounting structure for heating furnace is provided for the utility model;

[0021] Figure 2 A bottom view schematic diagram of the furnace base is provided for the utility model;

[0022] Figure 3 A structure schematic diagram of the furnace base and the disc body in the disassembled state is provided for the utility model;

[0023] Figure 4 A structure schematic diagram of the heating disc mounting structure for heating furnace in the previous generation of prior art is provided.

[0024] Legend:

[0025] 1, furnace base, 101, support block, 102, positioning column, 103, right angle rotary groove, 104, internal screw sleeve, 2, disc body, 201, electric heating wire, 202, limiting lug, 203, upper circular hole, 204, lower oval hole, 205, positioning block, 206, positioning hole, 3, pivot, 301, oval lock block, 302, rotary plate, 303, external screw column, 304, knob. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer toFigures 1-4 The utility model provides a kind of technical scheme: a kind of heating disc mounting structure for heating furnace, including furnace base 1, the disc body 2 of being set in furnace base 1 inner side bottom and the electric heating wire 201 of being installed on the upper end of disc body 2, the inner side bottom of furnace base 1 is circular array fixedly connected with three support blocks 101, which is abutted with the lower end of furnace base 1, locking disc mechanism is arranged between furnace base 1 and disc body 2 for disc body 2 in furnace base 1 and support block 101 between tool-free quick installation or dismounting operation.

[0028] Specifically, as shown in Figure 1 And Figure 3 Disclosed, the outside of disc body 2 is fixedly connected with positioning block 205 above three support blocks 101, the upper end of support block 101 is integrally fixedly connected with positioning column 102, which penetrates positioning block 205, positioning hole 206 corresponding to positioning column 102 is formed in positioning block 205, positioning column 102 and positioning hole 206 are arranged, on the one hand, to limit the freedom of disc body 2 in X-axis and Y-axis directions between three support blocks 101, and on the other hand, to improve the stability of the structure bearing between disc body 2 and furnace base 1 after positioning installation.

[0029] Specifically, as shown in Figures 1-3 Disclosed, locking disc mechanism includes three limiting protrusions 202 fixed in the outside of disc body 2 in circular array, three rotating shafts 3 rotatingly installed on furnace base 1 in circular array and penetrating limiting protrusions 202 upward, oval lock block 301 fixed on the upper end of rotating shaft 3, upper circular hole 203 formed in the upper end of limiting protrusion 202 for accommodating oval lock block 301, and lower oval hole 204 formed in the lower end of limiting protrusion 202 for oval lock block 301 to slide into upper circular hole 203 upward, oval lock block 301 can enter upper circular hole 203 through lower oval hole 204 to rotate and adjust, so as to realize the adjustment operation of the locking state between disc body 2 and furnace base 1.

[0030] Among them, the lower end of rotating shaft 3 is fixedly connected with rotating plate 302, which facilitates the holding and rotating adjustment operation of the lower end of rotating shaft 3 by the hands of operator, and the lower end of furnace base 1 is provided with right-angle rotating groove 103 outside rotating shaft 3 and rotating plate 302, so as to hide and store rotating plate 302, and facilitate the rotating adjustment operation of rotating plate 302, when rotating plate 302 rotates outward to fit with right-angle rotating groove 103, oval lock block 301 can coincide with lower oval hole 204 on disc body 2 at this time, so as to release the locking state between furnace base 1 and disc body 2, when rotating plate 302 rotates inward to fit with right-angle rotating groove 103, oval lock block 301 can be perpendicular to lower oval hole 204 on disc body 2 at this time, so as to be in the locking state between furnace base 1 and disc body 2.

[0031] Specifically, as shown in Figures 1-3As shown, the rotating plate 302 and the right-angle rotating groove 103 are provided with a locking part for preventing the rotating plate 302 from being accidentally rotated out of the right-angle rotating groove 103, the locking part comprising an external screw post 303 vertically rotatably mounted on the free end of the rotating plate 302, a knob 304 mounted on the outer end of the external screw post 303, and an internal screw sleeve 104 fixed on the inner side of the right-angle rotating groove 103 and matched with the inner end of the external screw post 303, when the external screw post 303 is screwed into the internal screw sleeve 104, the rotating plate 302 can be locked and fixed in the right-angle rotating groove 103, so that the locking state between the furnace base 1 and the disc body 2 can be maintained, and the locking state between the furnace base 1 and the disc body 2 caused by the accidental rotation of the rotating plate 302 can be prevented.

[0032] Working principle: when the disc body 2 needs to be installed into the furnace base 1, first, the operator can hold and rotate the rotating plate 302 on the rotating shaft 3 outward, so that the elliptical lock block 301 on the rotating shaft 3 can be adjusted to be in the overlapping state with the lower elliptical hole 204 on the disc body 2, second, the disc body 2 is taken and the positioning hole 206 on the disc body 2 is aligned and inserted downward on the positioning column 102 of the furnace base 1, in this process, the elliptical lock block 301 on the rotating shaft 3 can penetrate through the lower elliptical hole 204, finally, when the lower end of the disc body 2 is stably abutted on the supporting block 101 of the furnace base 1, the rotating plate 302 on the rotating shaft 3 can be held and rotated inward, the rotating plate 302 is rotatably installed on the inner side of the right-angle rotating groove 103, at this time, the elliptical lock block 301 can be perpendicular to the lower elliptical hole 204, the disc body 2 is stably locked and fixed between the furnace base 1 and the supporting block 101, then the external screw post 303 on the rotating plate 302 is screwed into the internal screw sleeve 104 in the right-angle rotating groove 103, so that the rotating plate 302 can be prevented from being accidentally rotated out of the right-angle rotating groove 103.

[0033] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A heating disc mounting structure for a heating furnace, comprising a furnace base (1), a disc body (2) arranged at the inner bottom of the furnace base (1), and an electric heating wire (201) mounted at the upper end of the disc body (2), characterized in that, The inner bottom of the furnace base (1) is fixedly connected with three supporting blocks (101) abutting against the lower end of the furnace base (1) in a ring array, and a lock disc mechanism is arranged between the furnace base (1) and the disc body (2) for tool-free quick mounting or dismounting operation of the disc body (2) between the furnace base (1) and the supporting blocks (101); The outer part of the disc body (2) is fixedly connected with a positioning block (205) above each of the three supporting blocks (101), and the upper end of the supporting block (101) is integrally fixedly connected with a positioning column (102) penetrating through the positioning block (205), and the positioning block (205) is provided with a positioning hole (206) corresponding to the positioning column (102); The lock disc mechanism comprises three limiting protrusions (202) fixed on the outer part of the disc body (2) in a ring array, three rotating shafts (3) rotatably mounted on the furnace base (1) and penetrating through the limiting protrusions (202) upward, an oval lock block (301) fixed on the upper end of the rotating shaft (3), an upper circular hole (203) provided on the upper end of the limiting protrusion (202) and used for accommodating the oval lock block (301), and a lower oval hole (204) provided on the lower end of the limiting protrusion (202) and used for sliding the oval lock block (301) upward into the upper circular hole (203).

2. The heating tray mounting structure for a heating furnace according to claim 1, characterized by The lower end of the rotating shaft (3) is fixedly connected with a rotating plate (302), and the lower end of the furnace base (1) is provided with a right-angle rotating groove (103) outside the rotating shaft (3) and the rotating plate (302).

3. The heating tray mounting structure for a heating furnace according to claim 2, characterized by A locking part is arranged between the rotating plate (302) and the right-angle rotating groove (103) to prevent the rotating plate (302) from being rotated out of the right-angle rotating groove (103) by force.

4. The heating tray mounting structure for a heating furnace according to claim 3, characterized in that, The locking part comprises an outer threaded column (303) rotatably mounted on the free end of the rotating plate (302), a knob (304) mounted on the outer end of the outer threaded column (303), and an inner threaded sleeve (104) fixedly arranged on the inner side of the right-angle rotating groove (103) and matched with the inner end of the outer threaded column (303).

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