Tempering furnace for batch heat treatment

Abstract

The utility model relates to the field of tempering furnaces, and particularly discloses a tempering furnace for batch heat treatment, which comprises a tempering furnace, an electric fan and a dropped slag filter plate, the top and the bottom of the tempering furnace are each of an open structure, a furnace cover is arranged on the top of the tempering furnace, a connecting device is arranged on the tempering furnace, the side face of the furnace cover is arranged on the connecting device, a containing leakage plate is arranged in the tempering furnace, the electric fan is arranged in the tempering furnace, and a fan fixing plate is arranged in the tempering furnace. The electric fan is arranged at the bottom of the fan fixing plate, a fan shaft is arranged on the electric fan, the fan shaft penetrates through the fan fixing plate and extends upwards, blades are arranged on the part, extending out of the fan fixing plate, of the fan shaft, the electric fan is arranged at the bottom of the placing bushing, and the dropped slag filter plate is arranged at the bottom of the tempering furnace; according to the tempering furnace for batch heat treatment provided by the utility model, different cooling rates can be provided according to different requirements after heat preservation is finished, and fallen surface oxides are collected.

Description

Technical Field

[0001] The utility model relates to the field of tempering furnaces, in particular to a tempering furnace for batch heat treatment. Background Art

[0002] Tempering is a heat treatment process in which the workpiece is heated to a temperature below Ac1 after hardening, kept at that temperature for a certain period of time, and then cooled to room temperature. The tempering process is generally used to reduce or eliminate the internal stress in the quenched steel parts, or reduce its hardness and strength to improve its ductility or toughness.

[0003] In the tempering process, the workpiece is tempered in time after quenching. The coordination of quenching and tempering is a complete process. The tempering process requires rapid cooling after heat preservation. The tempering cooling rate required for different objects is different. The existing technology cannot meet the tempering rate of different workpiece materials, and oxides are generated on the surface during the use of the tempering furnace. If the oxides on the surface of the object fall off, it is very troublesome to clean them. The existing tempering furnace is very cumbersome in cleaning the oxides and cannot adjust the cooling rate well. Therefore, a tempering furnace for batch heat treatment is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a tempering furnace for batch heat treatment to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tempering furnace for batch heat treatment, comprising a tempering furnace, an electric fan, and a slag filter plate; the top and bottom of the tempering furnace are open structures, a furnace cover is arranged on the top of the tempering furnace, a connecting device is arranged on the tempering furnace, and the side of the furnace cover is arranged on the connecting device; a leak plate is arranged inside the tempering furnace, the electric fan is arranged inside the tempering furnace, a fan fixing plate is arranged inside the tempering furnace, the electric fan is arranged at the bottom of the fan fixing plate, a fan shaft is arranged on the electric fan, the fan shaft passes through the fan fixing plate and extends upward, blades are arranged on the part where the fan shaft extends out of the fan fixing plate, the electric fan drives the fan shaft to rotate, thereby driving the blades to rotate, so as to realize rapid heat dissipation inside the tempering furnace, the electric fan is arranged at the bottom of the leak plate, and the slag filter plate is arranged at the bottom of the tempering furnace.

[0006] Preferably, a buckle is provided on the outer side of the slag filter plate, and a block is provided on the bottom side of the tempering furnace. The buckle and the block are connected, and the slag filter plate is fixed to the tempering furnace by the buckle and the block.

[0007] Preferably, a storage frame is provided on the bottom of the residue filter plate, a rotating shaft is provided on the storage frame, and a top of the rotating shaft is fixed on the residue filter plate.

[0008] Preferably, a bearing is provided inside the rotating shaft, and the storage frame can rotate based on the residue filter plate through the bearing.

[0009] Preferably, a handle is provided on the furnace cover, and the furnace cover can be opened conveniently by the handle.

[0010] Preferably, a furnace body fixing ring is provided on the outer side of the tempering furnace, a bottom plate is provided on the bottom of the tempering furnace, a vertical plate is provided on the bottom plate, a fixing rod is provided on the vertical plate, the fixing rod is connected to the furnace body fixing ring, and the furnace body fixing ring fixes the tempering furnace.

[0011] Compared with the prior art, the utility model has the following beneficial effects: oxides dropped on the surface of objects are collected by the provided slag filter plate, the oxides can be cleaned by removing the slag filter plate through a snap, the cooling rate between different objects can be adjusted by an electric fan, the upper and lower gas circulation can be achieved by opening the furnace cover and rotating the storage frame, the interior of the tempering furnace can be kept warm by closing the furnace cover and overlapping the slag filter plate and the storage frame, the utility model realizes cooling at different rates by using different speeds of the electric fan, and the provided slag filter plate collects the dropped oxides. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the internal cross-sectional structure of the tempering furnace of the utility model;

[0013] Figure 2 This is a schematic diagram of the overall external structure of the tempering furnace of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the slag filter plate of the utility model;

[0015] Numbers in the figure: 1. tempering furnace; 11. furnace cover; 12. connecting device; 13. handle; 14. leakage plate; 15. clamping block; 2. electric fan; 21. fan fixing plate; 22. fan shaft; 23. blade; 3. slag filter plate; 31. storage frame; 32. buckle; 33. rotating shaft; 4. furnace body fixing ring; 41. bottom plate; 42. fixing rod; 43. vertical plate. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] See also Figure 1-3 The utility model provides a technical solution: a tempering furnace for batch heat treatment, comprising a tempering furnace 1, an electric fan 2, and a slag filter plate 3; the top and bottom of the tempering furnace 1 are open structures, a furnace cover 11 is arranged on the top of the tempering furnace 1, a connecting device 12 is arranged on the tempering furnace 1, and the side of the furnace cover 11 is arranged on the connecting device 12, a leakage plate 14 is arranged inside the tempering furnace 1, the electric fan 2 is arranged inside the tempering furnace 1, a fan fixing plate 21 is arranged inside the tempering furnace 1, the electric fan 2 is arranged at the bottom of the fan fixing plate 21, a fan shaft 22 is arranged on the electric fan 2, the fan shaft 22 passes through the fan fixing plate 21 and extends upward, and a blade 23 is arranged on the part where the fan shaft 22 extends out of the fan fixing plate 21, the electric fan 2 drives the fan shaft 22 to rotate, thereby driving the blade 23 to rotate, so as to realize rapid heat removal from the tempering furnace 1, the electric fan 2 is arranged at the bottom of the leakage plate 14, and the slag filter plate 3 is arranged at the bottom of the tempering furnace 1.

[0020] Furthermore, a buckle 32 is provided on the outer side of the slag filter plate 3, and a block 15 is provided on the bottom side of the tempering furnace 1. The buckle 32 and the block 15 are connected, and the slag filter plate 3 is fixed to the tempering furnace 1 through the buckle 32 and the block 15.

[0021] Furthermore, a storage frame 31 is provided on the bottom of the residue filter plate 3 , a rotating shaft 33 is provided on the storage frame 31 , and a top of the rotating shaft 33 is fixed on the residue filter plate 3 .

[0022] Furthermore, a bearing is provided inside the rotating shaft 33 , and the storage frame 31 can rotate based on the residue filter plate 3 through the bearing.

[0023] Furthermore, a handle 13 is provided on the furnace cover 11, and the furnace cover 11 can be opened conveniently by the handle 13.

[0024] Furthermore, a furnace body fixing ring 4 is provided on the outer side of the tempering furnace 1, a bottom plate 41 is provided on the bottom of the tempering furnace 1, a vertical plate 43 is provided on the bottom plate 41, a fixing rod 42 is provided on the vertical plate 43, the fixing rod 42 is connected to the furnace body fixing ring 4, and the furnace body fixing ring 4 fixes the tempering furnace 1.

[0025] Working principle: open the furnace cover 11 and place the object to be tempered on the leak plate 14. When the object needs to be cooled down after the insulation is completed, different objects require different cooling rates. The electric fan 2 drives the rotation of the fan shaft 22 to quickly cool down the object placed on the leak plate 14. When starting the electric fan 2, it is necessary to open the furnace cover 11 and rotate the storage frame 31 to achieve upper and lower gas circulation. The speed of the blade 23 is adjusted according to different objects. The oxides falling from the surface of the object fall on the slag filter plate 3, and the slag filter plate 3 can be removed by the buckle 32 for cleaning.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tempering furnace for batch heat treatment, characterized in that: The invention comprises a tempering furnace (1), an electric fan (2), and a slag filter plate (3); the top and bottom of the tempering furnace (1) are open structures, a furnace cover (11) is arranged on the top of the tempering furnace (1), a connecting device (12) is arranged on the tempering furnace (1), the side of the furnace cover (11) is arranged on the connecting device (12), a leak plate (14) is arranged inside the tempering furnace (1), the electric fan (2) is arranged inside the tempering furnace (1), and the tempering furnace (1) is provided with a filter plate (14). A fan fixing plate (21) is provided, the electric fan (2) is arranged at the bottom of the fan fixing plate (21), a fan shaft (22) is provided on the electric fan (2), the fan shaft (22) passes through the fan fixing plate (21) and extends upward, and blades (23) are provided at the part where the fan shaft (22) extends out of the fan fixing plate (21), the electric fan (2) is arranged at the bottom of the leak plate (14), and the slag filter plate (3) is arranged at the bottom of the tempering furnace (1).

2. A tempering furnace for batch heat treatment according to claim 1, characterized in that: A buckle (32) is provided on the outer side of the slag filter plate (3), and a clamping block (15) is provided on the bottom side of the tempering furnace (1), and the buckle (32) and the clamping block (15) are connected.

3. A tempering furnace for batch heat treatment according to claim 1, characterized in that: A storage frame (31) is arranged on the bottom of the residue filter plate (3), a rotating shaft (33) is arranged on the storage frame (31), and the top of the rotating shaft (33) is fixed on the residue filter plate (3).

4. A tempering furnace for batch heat treatment according to claim 3, characterized in that: A bearing is arranged inside the rotating shaft (33).

5. The tempering furnace for batch heat treatment according to claim 1, characterized in that: The furnace cover (11) is provided with a handle (13).

6. The tempering furnace for batch heat treatment according to claim 1, characterized in that: A furnace body fixing ring (4) is arranged on the outer side of the tempering furnace (1), a bottom plate (41) is arranged on the bottom of the tempering furnace (1), a vertical plate (43) is arranged on the bottom plate (41), a fixing rod (42) is arranged on the vertical plate (43), and the fixing rod (42) is connected to the furnace body fixing ring (4).

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