A forging heat treatment apparatus and method of use

Abstract

The application discloses a forging heat treatment device and a use method thereof, which comprise a base and a main furnace arranged on the base, a top cover is slidably arranged on the top of the main furnace, and a heat preservation sleeve is arranged and fixedly arranged on the outer periphery of the main furnace. The application relates to the technical field of mechanical forging. The forging heat treatment device and the use method thereof, by arranging a plurality of sub-furnaces on the outer periphery of the main furnace, the plurality of sub-furnaces simultaneously supply heat to the main furnace, the main furnace is heated in the form of the sub-furnaces protecting the main furnace, the plurality of sub-furnaces are simultaneously heated, the heat rising speed of the main furnace is effectively improved, and under the arrangement of the rotary driving assembly, the supporting column is used for stably supporting the tray, under the rotating action of the motor, the tray is effectively driven to rotate the placing frame, the uniformity of the heating of the placing frame is further ensured, the uniformity of the heating of the main furnace is ensured, the preheating cavity is arranged, the materials with different temperature requirements are heated in the heating process, the application is convenient, and the heat treatment efficiency is higher.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical forging, in particular to a forging heat treatment device and a use method thereof. BACKGROUND

[0002] Heat treatment refers to a metal hot working process in which materials in solid state are heated, kept and cooled to obtain desired organization and performance. In the process of advancing from the Stone Age to the Bronze Age and the Iron Age, the role of heat treatment has gradually been recognized by people.

[0003] The conventional metal forging heating method is to directly place the metal in a heating furnace for heating. The heating furnace has a single heat source and cannot effectively grade the heat, so that metals with different heating degrees need to use a heating furnace separately, which greatly affects the efficiency of metal forging heat treatment. Therefore, the forging heat treatment device and the use method thereof are proposed to realize heat grading, effectively improve the heating efficiency of the main furnace, and heat the metals with different temperature limits, thereby improving the efficiency of metal forging heat treatment. SUMMARY

[0004] (I) Technical problems to be solved

[0005] In view of the deficiencies of the prior art, the present application provides a forging heat treatment device and a use method thereof, which solves the above problems.

[0006] (II) Technical solutions

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a forging heat treatment device, comprising a base and a main furnace placed on the base, a top cover slidably installed on the top of the main furnace, a heat preservation sleeve fixedly installed on the outer periphery of the main furnace, a sub-furnace slidably installed on the outer periphery of the heat preservation sleeve, and at least three heat conducting pipes sequentially communicated from top to bottom in the interior of the sub-furnace, one end of the heat conducting pipe sequentially penetrating the heat preservation sleeve and the main furnace and extending into the interior of the main furnace, a rotary drive assembly fixedly installed at the bottom of the inner cavity of the main furnace, a placing frame fixedly installed at the top of the rotary drive assembly, a plugging block fixedly installed at the bottom of the top cover, and a sealing cover fixedly installed at the bottom of the plugging block and matched with the placing frame.

[0008] By adopting the above technical solutions, the main furnace is heated in the form of the sub-furnace protecting the main furnace, and the simultaneous heating of multiple sub-furnaces greatly improves the temperature rising speed of the main furnace.

[0009] The present application is further provided as follows: the number of sub-furnaces is at least eight, and a preheating cavity matched with the sub-furnace is formed in the interior of the plugging block, and a plugging plug matched with the preheating cavity is penetratingly and slidably installed at the top of the top cover.

[0010] The application further provides that the sealing cover comprises an isolation cover and an immersion cover, wherein the bottom of the isolation cover is fixedly connected with the top of the immersion cover, the outer periphery of the isolation cover is in rotational contact with the interior of the main furnace, at least one heat conduction pipe is arranged above the isolation cover, the surface of the isolation cover is provided with a bayonet fitting matched with the heat conduction pipe, and the inner wall of the main furnace is fixedly provided with a sealing ring matched with the isolation cover.

[0011] By adopting the above technical scheme, the interior space of the main furnace is isolated by the sealing cover, so that the stability of the temperature of the preheating cavity in the plugging block is ensured.

[0012] The application further provides that the rotating driving assembly comprises a motor and a tray, the top end of the output shaft of the motor is fixedly connected with a driving gear, the bottom of the tray is fixedly connected with a support column, and the outer surface of the support column is sleeved and fixedly connected with a driven gear matched with the driving gear.

[0013] The application further provides that the motor is fixedly installed at the bottom of the inner cavity of the main furnace, the bottom of the support column is rotatably connected with the bottom of the inner cavity of the main furnace through a bearing, and the outer surface of the tray is in rotational contact with the inner surface of the main furnace.

[0014] By adopting the above technical scheme, the tray is stably supported by the support column, and under the rotating action of the motor, the tray is effectively driven to rotate the placing frame, so that the uniform heating of the placing frame is further ensured.

[0015] The application further provides that the top of the heat preservation sleeve is provided with a limiting sliding groove, and the surface of the sub-furnace is fixedly connected with a limiting sliding block matched with the limiting sliding groove.

[0016] The application further provides that the outer surface of the sub-furnace is fixedly connected with a lifting lug.

[0017] The application further discloses a use method of the forging heat treatment device, and specifically comprises the following steps.

[0018] Step one, assembly: place the base on the horizontal ground, use a crane to hoist the main furnace to the base, after the installation of the main furnace is completed, use the crane to assemble a plurality of sub-furnaces to the outer periphery of the main furnace, then open the maintenance door of the sub-furnace, assemble the heat conduction pipe to the sub-furnace and the main furnace, realize the heat supply of the sub-furnace to the main furnace, after the assembly is completed, place the forged piece in the placing frame in the interior of the main furnace, use the crane to hoist the top cover and install it on the main furnace, complete the feeding assembly.

[0019] Step two, heat treatment: a plurality of sub-furnaces are arranged at different temperatures, and after the sub-furnace is heated to the set temperature, each sub-furnace maintains the corresponding set temperature to supply heat to the main furnace, the main furnace is provided with a rotating drive assembly for driving the placement frame to rotate to realize uniform heating treatment of the forged piece in the main furnace;

[0020] Step three, hot cavity distribution: a sealing block is integrally arranged below the top cover, and a preheating cavity adapted to the number of sub-furnaces is formed in the sealing block, and the preheating cavity is heated during the heating process of the sub-furnace to the main furnace.

[0021] Step four, heat treatment: according to the required heating temperature of the material, select the preheating cavity matched with the temperature, pull out the plug, and place the material in the corresponding preheating cavity for heating.

[0022] By adopting the above technical scheme, a plurality of sub-furnaces are arranged around the main furnace, and the plurality of sub-furnaces simultaneously supply heat to the main furnace, which effectively improves the heat rising speed of the main furnace, and under the arrangement of the rotating drive assembly, the uniformity of the heating of the main furnace is ensured, the preheating cavity is arranged, the materials with different temperature requirements are heated during the heating process, and the heat treatment efficiency is higher.

[0023] (Three) beneficial effects

[0024] The present application provides a kind of forged piece heat treatment device and use method.It has the following beneficial effects:

[0025] (1) the forged piece heat treatment device and use method, by a plurality of sub-furnaces are arranged around the main furnace, and the plurality of sub-furnaces simultaneously supply heat to the main furnace, which effectively improves the heat rising speed of the main furnace, and under the arrangement of the rotating drive assembly, the uniformity of the heating of the main furnace is ensured, the preheating cavity is arranged, the materials with different temperature requirements are heated during the heating process, and the heat treatment efficiency is higher.

[0026] (2) the forged piece heat treatment device and use method, by setting main furnace and sub-furnace, the form of main furnace heating is that sub-furnace arches the main furnace, and the plurality of sub-furnaces are heated simultaneously, which greatly improves the temperature rising speed of the main furnace.

[0027] (3) the forged piece heat treatment device and use method, under the arrangement of sealing cover, the internal space of main furnace is isolated, so as to ensure the stability of the temperature of preheating cavity in sealing block.

[0028] (4) the forged piece heat treatment device and use method, by using support column to stably support tray, under the rotating action of motor, effectively drive tray to make placement frame rotate, further ensure the uniformity of heating of placement frame. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a schematic diagram of the external structure of the present application;

[0030] Figure 2 It is a schematic diagram of the internal structure of the present application;

[0031] Figure 3 It is a top view of the internal structure of the present application;

[0032] Figure 4 It is a schematic diagram of the structure of the top cover, blocking block, sealing cover, preheating cavity and blocking plug of the present application;

[0033] Figure 5 It is a schematic diagram of the connection of the blocking block, sealing cover and preheating cavity structure of the present application.

[0034] In the figure, 1 is the base, 2 is the main furnace, 3 is the top cover, 4 is the heat preservation sleeve, 5 is the sub-furnace, 6 is the heat conducting pipe, 7 is the rotary drive assembly, 8 is the placing frame, 9 is the blocking block, 10 is the sealing cover, 11 is the preheating cavity, 12 is the blocking plug, 13 is the sealing ring, 14 is the motor, 15 is the tray, 16 is the drive gear, 17 is the support column, and 18 is the driven gear. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] Please refer to Figures 1-5 The present application provides the following technical solutions: a forged piece heat treatment device, comprising a base 1 and a main furnace 2 placed on the base 1, a top cover 3 is slidably installed on the top of the main furnace 2, as shown in the accompanying Figure 1 The top cover 3 is fixedly connected with a lifting rope around the top, one end of the lifting rope is fixedly connected with a lifting ring, and the top cover 3 is in a cladding shape to seal the main furnace 2, which has better sealing effect. A heat preservation sleeve 4 is sleeved and fixedly installed around the outer periphery of the main furnace 2, a sub-furnace 5 is slidably installed around the outer periphery of the heat preservation sleeve 4, the sub-furnace 5 is heated by natural gas or electricity, and the heating temperature is controlled by a control switch. Lifting lugs are fixedly connected to the outer surface of the sub-furnace 5, which facilitates the lifting of the sub-furnace 5. As a detailed description, a limiting sliding groove is formed in the top of the heat preservation sleeve 4, and a limiting sliding block adapted to the limiting sliding groove is fixedly connected to the surface of the sub-furnace 5. Specifically, the number of sub-furnaces 5 is at least eight, and a preheating cavity 11 adapted to the sub-furnace 5 is formed in the inside of the blocking block 9. A blocking plug 12 adapted to the preheating cavity 11 is penetratingly and slidably installed on the top of the top cover 3.

[0037] As a preferred scheme, the inside of the sub-furnace 5 is sequentially communicated with at least three heat-conducting pipes 6 from top to bottom, one end of the heat-conducting pipe 6 sequentially penetrates the heat preservation sleeve 4 and the main furnace 2 and extends to the inside of the main furnace 2, the bottom of the inner cavity of the main furnace 2 is fixedly installed with a rotary driving assembly 7, as a detailed description, the rotary driving assembly 7 includes a motor 14 and a tray 15, the top end of the output shaft of the motor 14 is fixedly connected with a driving gear 16, the bottom of the tray 15 is fixedly connected with a support column 17, the outer surface of the support column 17 is sleeved and fixedly connected with a driven gear 18 matched with the driving gear 16, the motor 14 is fixedly installed at the bottom of the inner cavity of the main furnace 2, the bottom of the support column 17 is rotatably connected with the bottom of the inner cavity of the main furnace 2 through a bearing, and the outer surface of the tray 15 is in rotary contact with the inner surface of the main furnace 2.

[0038] The top of the rotary driving assembly 7 is fixedly installed with a placing frame 8, the bottom of the top cover 3 is fixedly installed with a plugging block 9, and the bottom of the plugging block 9 is fixedly installed with a sealing cover 10 matched with the placing frame 8, and further description, the sealing cover 10 includes an isolation cover and an immersion cover, wherein the bottom of the isolation cover is fixedly connected with the top of the immersion cover, the outer periphery of the isolation cover is in rotary contact with the inside of the main furnace 2, and at least one heat-conducting pipe 6 is arranged above the isolation cover, the surface of the isolation cover is provided with a bayonet matched with the heat-conducting pipe 6, and the inner wall of the main furnace 2 is fixedly installed with a sealing ring 13 matched with the isolation cover.

[0039] The use method of the above-mentioned forging heat treatment device specifically includes the following steps:

[0040] Step one, assembly of components: place the base 1 on the horizontal ground, use a crane to hoist the main furnace 2 to the base 1, after completing the installation of the main furnace 2, use the crane to assemble a plurality of sub-furnaces 5 to the outer periphery of the main furnace 2, then open the access door of the sub-furnace 5, assemble the heat-conducting pipe 6 to the sub-furnace 5 and the main furnace 2, realize the heat supply of the sub-furnace 5 to the main furnace 2, after completing the assembly, place the forged piece in the placing frame 8 inside the main furnace, use the crane to hoist the top cover 3 and install it on the main furnace 2, complete the feeding assembly;

[0041] Step two, heating treatment: set the temperature of a plurality of sub-furnaces 5 in a way of different temperature intervals, further description, the temperature of a plurality of sub-furnaces 5 has two ways of being completely same and different, wherein for the sub-furnaces 5 with different temperatures, select the way of interval placement for temperature control, to avoid a large temperature difference between the adjacent two sub-furnaces 5, after heating the sub-furnace 5 to the set temperature, each sub-furnace maintains the corresponding set temperature to deliver heat to the main furnace 2 at a constant temperature, the main furnace 2 is built-in with the placing frame 8 rotary driving assembly 7, the rotary driving assembly 7 is used to drive the placing frame 8 to rotate, to realize the uniform heating treatment of the main furnace 2 to the forged piece;

[0042] Step 3, hot cavity allocation: A sealing block 9 is integrally fixed below the top cover 3. A preheating cavity 11 adapted to the number of sub-furnaces 5 is opened in the sealing block 9. During the process of the sub-furnaces 5 heating the main furnace, the preheating cavity 11 is heated.

[0043] Step 4, Heat treatment: Select a preheating chamber 11 that matches the temperature required for the material. After removing the sealing plug 12, place the material in the corresponding preheating chamber 11 for heating.

[0044] In summary, this invention effectively increases the heat rise rate of the main furnace 2 by arranging several sub-furnaces 5 around the outer periphery of the main furnace 2, with the sub-furnaces 5 simultaneously supplying heat to the main furnace 2. Furthermore, the rotation drive assembly 7 ensures uniform heating of the main furnace 2. The preheating chamber 11 allows for heating of materials with different temperature requirements during the heating process. This design is convenient to use and offers higher heat treatment efficiency. The arrangement of the main furnace 2 and sub-furnaces 5, with the sub-furnaces 5 surrounding the main furnace 2, and the simultaneous heating by multiple sub-furnaces 5, significantly improves the temperature rise rate of the main furnace 2. The high speed, with the sealing cover 10, isolates the internal space of the main furnace 2, thereby ensuring the temperature stability of the preheating chamber 11 in the sealing block 9. By using the support column 17 to stably support the tray 15, the rotation of the motor 14 effectively drives the tray 15, causing the placement frame 8 to rotate, further ensuring the uniform heating of the placement frame 8. This effectively solves the problem of a single heat source in the heating furnace, which cannot perform effective heat grading, resulting in metals of different heating degrees needing to use separate heating furnaces, significantly affecting the efficiency of metal forging heat treatment. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat treatment apparatus for forgings, comprising a base (1) and a main furnace (2) placed on the base (1), characterized in that: A top cover (3) is slidably installed on the top of the main furnace (2). A heat insulation sleeve (4) is fitted and fixedly installed on the outer periphery of the main furnace (2). A sub-furnace (5) is slidably installed on the outer periphery of the heat insulation sleeve (4). At least three heat conduction pipes (6) are connected sequentially from top to bottom inside the sub-furnace (5). One end of each heat conduction pipe (6) passes through the heat insulation sleeve (4) and the main furnace (2) and extends into the interior of the main furnace (2). A rotary drive assembly (7) is fixedly installed at the bottom of the inner cavity of the main furnace (2). A placement frame (8) is fixedly installed on the top of the rotary drive assembly (7). The top cover... (3) has a sealing block (9) fixedly installed at the bottom, and a sealing cover (10) adapted to the placement frame (8) is fixedly installed at the bottom of the sealing block (9); the number of the sub-furnaces (5) is at least eight, and a preheating chamber (11) adapted to the sub-furnaces (5) is opened inside the sealing block (9), and a sealing plug (12) adapted to the preheating chamber (11) is installed through and slidably on the top of the top cover (3); the sub-furnaces (5) heat the main furnace (2) in the form of guarding the main furnace (2), and the temperature of several sub-furnaces (5) is set in a way of different intervals.

2. The forging heat treatment apparatus according to claim 1, characterized in that: The sealing cover (10) includes an isolation cover and an immersion cover, wherein the bottom of the isolation cover is fixedly connected to the top of the immersion cover, the outer periphery of the isolation cover is in rotatable contact with the interior of the main furnace (2), and at least one heat conduction pipe (6) is arranged above the isolation cover. The surface of the isolation cover is provided with a snap-fit ​​that is compatible with the heat conduction pipe (6), and a sealing ring (13) compatible with the isolation cover is fixedly installed on the inner wall of the main furnace (2).

3. The forging heat treatment apparatus according to claim 1, characterized in that: The rotary drive assembly (7) includes a motor (14) and a tray (15). The top of the output shaft of the motor (14) is fixedly connected to a drive gear (16), and the bottom of the tray (15) is fixedly connected to a support column (17). The outer surface of the support column (17) is fitted with and fixedly connected to a driven gear (18) that is compatible with the drive gear (16).

4. The forging heat treatment apparatus according to claim 3, characterized in that: The motor (14) is fixedly installed at the bottom of the inner cavity of the main furnace (2). The bottom of the support column (17) is rotatably connected to the bottom of the inner cavity of the main furnace (2) through a bearing, and the outer surface of the tray (15) is in rotatable contact with the inner surface of the main furnace (2).

5. The forging heat treatment apparatus according to claim 1, characterized in that: The top of the insulation sleeve (4) is provided with a limiting groove, and the surface of the sub-furnace (5) is fixedly connected with a limiting slider that is compatible with the limiting groove.

6. The forging heat treatment apparatus according to claim 1, characterized in that: The outer surface of the sub-furnace (5) is fixedly connected with lifting lugs.

7. A method of using a forging heat treatment apparatus according to any one of claims 1-6, characterized in that: Specifically, the following steps are included: Step 1, Component Assembly: Place the base (1) on a horizontal ground and use a crane to hoist the main furnace (2) onto the base (1). After the main furnace (2) is installed, use a crane to assemble several sub-furnaces (5) onto the outer periphery of the main furnace (2). Then open the maintenance door of the sub-furnace (5) and assemble the heat pipe (6) onto the sub-furnace (5) and the main furnace (2) to achieve heat supply from the sub-furnace (5) to the main furnace (2). After the assembly is completed, place the forging in the placement frame (8) inside the main furnace and use a crane to lift the top cover (3) and install it on the main furnace (2) to complete the loading assembly. Step 2, heating treatment: The temperature of several sub-furnaces (5) is set at different intervals. After heating the sub-furnaces (5) to the set temperature, each sub-furnace maintains the corresponding set temperature to deliver heat to the main furnace (2) at a constant temperature. The main furnace (2) has a built-in placement frame (8) and a rotation drive assembly (7). The rotation drive assembly (7) is used to drive the placement frame (8) to rotate, so as to achieve uniform heating treatment of the forging by the main furnace (2). Step 3, hot cavity allocation: A sealing block (9) is fixedly installed under the top cover (3). A preheating cavity (11) matching the number of sub-furnaces (5) is opened in the sealing block (9). During the process of the sub-furnaces (5) heating the main furnace, the preheating cavity (11) is heated. Step 4, heat treatment: Select a preheating chamber (11) that matches the temperature required for the material. After removing the sealing plug (12), place the material in the corresponding preheating chamber (11) for heating.

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