CN216141583U

CN216141583U - Quick heating device of vacuum quenching furnace

Info

Publication number: CN216141583U
Application number: CN202122078672.2U
Authority: CN
Inventors: 方海兵
Original assignee: SHANGHAI HEAT TREATMENT CO Ltd
Current assignee: SHANGHAI HEAT TREATMENT CO Ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-03-29
Anticipated expiration: 2031-08-31

Abstract

The utility model belongs to the field of quenching, and particularly discloses a rapid heating device of a vacuum quenching furnace, which comprises a furnace body, wherein one end of the furnace body is opened and provided with a sealing cover, the inner wall of the other end of the furnace body is embedded with a layer of guide sleeve, a plurality of first heating pipes are embedded in the wall of a main heating area of the furnace body in an annular array manner, heat-conducting rings in contact with the first heating pipes are arranged at the inner annular surface of a circular ring surrounded by the first heating pipes, and a circle of heat-conducting fins are arranged on the inner wall of each heat-conducting ring; two groups of auxiliary heating components are arranged in the furnace body, one group of auxiliary heating components is fixedly arranged in the sealing cover, and the other group of auxiliary heating components is arranged in the guide sleeve in a sliding manner. The heating speed in the furnace body is high, the heat is uniformly distributed, and the heating effect is good; the auxiliary heating assembly is matched with the main heating area to form an enclosed heating space in the furnace body, so that the heating speed is increased; the heating space in the furnace body can be adjusted as required, the flexibility is strong, the heating space is reasonably distributed, and the processing heat efficiency is improved.

Description

Quick heating device of vacuum quenching furnace

Technical Field

The utility model relates to the field of quenching, in particular to a rapid heating device of a vacuum quenching furnace.

Background

The vacuum quenching furnace is suitable for solution treatment and aging treatment of large and medium-sized vacuum product parts. The vacuum high-pressure gas quenching furnace is a very advanced vacuum heat treatment device, and the outstanding performance and the unique design of the vacuum high-pressure gas quenching furnace provide the characteristics of wide application of vacuum bright gas quenching, annealing, sintering and rapid cooling of magnetic materials and the like of high-precision parts made of alloy materials such as high-speed steel, die steel, stainless steel, alloy steel, titanium alloy and the like.

The heating assembly is a key component in the vacuum quenching furnace, and the quenching efficiency can be ensured. At present, the heating assembly of the existing vacuum quenching furnace has low processing heat efficiency and large energy consumption, the workpiece is heated at a low speed, and all parts are heated unevenly, so that the performance of the quenched workpiece is unstable and the quenched workpiece deforms seriously.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rapid heating device of a vacuum quenching furnace, which solves the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a rapid heating device of a vacuum quenching furnace comprises a furnace body, wherein one end of the furnace body is opened and is detachably provided with a sealing cover, the inner wall of the other end of the furnace body is embedded with a layer of guide sleeve, the region between the guide sleeve and the open end of the furnace body is a main heating region, a plurality of first heating pipes are embedded in the wall of the main heating region of the furnace body in an annular array manner, heat-conducting rings in contact with the first heating pipes are arranged at the inner ring surfaces of a circular ring surrounded by the first heating pipes, and the inner walls of the heat-conducting rings are provided with a circle of heat-conducting fins; two groups of auxiliary heating assemblies are arranged in the furnace body, one group of auxiliary heating assemblies is fixedly arranged in the sealing cover, the other group of auxiliary heating assemblies is arranged in the guide sleeve in a sliding mode, and an electric telescopic rod for driving one group of auxiliary heating assemblies to transversely move in the guide sleeve is arranged outside the furnace body.

Preferably, the heat conduction rings are arranged in a plurality of main heating areas of the furnace body and are distributed at equal intervals along the length direction of the furnace body.

Preferably, the auxiliary heating assembly comprises a heat insulation plate and an auxiliary heating plate which is attached and fixed on the inner side surface of the heat insulation plate, a plurality of second heating pipes of a C-shaped structure with sequentially increased sizes are arranged in the auxiliary heating plate, and the second heating pipes are sequentially distributed in the auxiliary heating plate from inside to outside.

Preferably, the inner wall of the guide sleeve is provided with a plurality of guide grooves with strip structures in an annular array, and the periphery of the heat insulation plate of the auxiliary heating assembly in the guide sleeve is correspondingly provided with a guide block which is embedded into the guide grooves in a sliding manner.

Preferably, a moving rod which slides out of the end face of the furnace body is vertically fixed at the center of a heat insulation plate of the auxiliary heating assembly in the guide sleeve, and a sealing sliding sleeve which allows the moving rod to slide through is embedded in the center of the end face of the furnace body.

Preferably, the electric telescopic rod is fixed on the outer side wall of the furnace body along the direction parallel to the movable rod, and the output end of the electric telescopic rod is fixedly connected with the outer end of the movable rod through a connecting rod.

Preferably, the auxiliary heating plate of the auxiliary heating assembly in the guide sleeve is provided with a bottom frame for placing the material frame at intervals.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the main heating area is arranged in the furnace body and is used as a main heating space, the plurality of first heating pipes are embedded in the main heating area in an annular array manner, the inner side wall of each first heating pipe is in contact connection with the plurality of heat conduction rings, the heat of the first heating pipes can be rapidly transferred and diffused by utilizing the heat conduction fins on the inner wall of each heat conduction ring, the temperature rise speed in the furnace body is high, the heat is uniformly distributed, and the heating effect is good.

2. Auxiliary heating assemblies are respectively arranged at two ends of the main heating area and are matched with the main heating area to form an enclosed heating space in the furnace body, so that the heating speed is increased; meanwhile, the auxiliary heating assembly at the lower end of the furnace body is movable, the heating space in the furnace body can be adjusted as required, the flexibility is high, the heating space is reasonably distributed, and the processing heat efficiency is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the main heating zone of the furnace body of the present invention;

fig. 3 is a schematic structural view of an auxiliary heating plate according to the present invention.

In the figure: 1. a furnace body; 2. a sealing cover; 3. a guide sleeve; 4. a first heating pipe; 5. a heat conducting ring; 6. a heat conductive fin; 7. a heat insulation plate; 8. an auxiliary heating plate; 9. a second heating pipe; 10. a guide groove; 11. a guide block; 12. a travel bar; 13. sealing the sliding sleeve; 14. an electric telescopic rod; 15. a connecting rod; 16. a chassis.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-3, the present invention provides a technical solution: a rapid heating device of a vacuum quenching furnace comprises a furnace body 1, wherein one end of the furnace body 1 is opened and is detachably provided with a sealing cover 2, the inner wall of the other end of the furnace body is embedded with a layer of guide sleeve 3, the area between the guide sleeve 3 and the opening end of the furnace body 1 is set as a main heating area, a plurality of first heating pipes 4 are embedded in the wall of the main heating area of the furnace body 1 in an annular array manner, heat conduction rings 5 which are in contact with the first heating pipes 4 are arranged at the inner annular surface of a circular ring surrounded by the first heating pipes 4, and a circle of heat conduction fins 6 are arranged on the inner wall of each heat conduction ring 5; two groups of auxiliary heating assemblies are arranged in the furnace body 1, one group of auxiliary heating assemblies is fixedly arranged in the sealing cover 2, the other group of auxiliary heating assemblies is arranged in the guide sleeve 3 in a sliding mode, and an electric telescopic rod 14 for driving one group of auxiliary heating assemblies to transversely move in the guide sleeve 3 is arranged outside the furnace body 1.

Furthermore, a plurality of heat conduction rings 5 are arranged in the main heating area of the furnace body 1 and are distributed at equal intervals along the length direction of the furnace body 1.

Further, the auxiliary heating subassembly includes that heat insulating board 7 and laminating fix the auxiliary heating board 8 on the heat insulating board 7 medial surface, lays the second heating pipe 9 of a plurality of "C" shape structures that the size increases in proper order in the auxiliary heating board 8, and each second heating pipe 9 distributes from inside to outside in proper order in auxiliary heating board 8, and this kind of structure makes the heat dissipation of auxiliary heating board 8 even.

Furthermore, a plurality of guide grooves 10 with strip structures are formed in the inner wall of the guide sleeve 3 in an annular array, and guide blocks 11 which are slidably embedded into the guide grooves 10 are correspondingly arranged on the periphery of the heat insulation plate 7 of the auxiliary heating assembly in the guide sleeve 3.

Furthermore, a moving rod 12 which slides out of the end face of the furnace body 1 is vertically fixed at the center of a heat insulation plate 7 of the auxiliary heating component in the guide sleeve 3, and a sealing sliding sleeve 13 for the moving rod 12 to slide through is embedded at the center of the end face of the furnace body 1.

Further, the electric telescopic rod 14 is fixed on the outer side wall of the furnace body 1 along a direction parallel to the moving rod 12, and the output end of the electric telescopic rod 14 is fixedly connected with the outer end of the moving rod 12 through a connecting rod 15.

Further, the auxiliary heating plate 8 of the auxiliary heating assembly in the guide sleeve 3 is provided with a bottom frame 16 for placing a material frame at intervals.

Further, the furnace body 1 is vertically arranged, the open end of the furnace body is upward, and a support is arranged at the bottom of the furnace body; the crane is arranged above the furnace body 1, and the charging basket can be hung to the hearth through the chain and the hook.

The working principle is as follows: the during operation, hang the charging basket to furnace body 1 in through chain and couple by the hoist, place on chassis 16 on below auxiliary heating board 8, main heating region in the furnace body 1 is as main heating space, it inlays and is equipped with a plurality of first heating pipes 4 to be the annular array in the main heating region, and be connected with a plurality of heat conduction rings 5 at the contact of 4 inside walls of each first heating pipe, the heat conduction fin 6 that utilizes the 5 inner walls of heat conduction ring can be with the quick transmission diffusion of heat of first heating pipe 4, the programming rate is fast in the furnace body 1, heat distribution is even, the heating effect is good.

Auxiliary heating assemblies are respectively arranged at two ends of the main heating area and are matched with the main heating area to form an enclosed heating space in the furnace body 1, so that the heating speed is increased; the heating space in the furnace body can be adjusted as required, the electric telescopic rod 14 is started to drive the moving rod 12 to move transversely in the furnace body 1, so that the auxiliary heating assembly in the guide sleeve 3 is driven to move transversely, the heating space in the furnace body is adjusted, the flexibility is high, the heating space is reasonably distributed, and the processing heat efficiency is improved.

It is worth noting that: the whole device realizes control over the device through the master control button, and the device matched with the control button is common equipment, belongs to the existing mature technology, and is not repeated for the electrical connection relation and the specific circuit structure.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A rapid heating device of a vacuum quenching furnace is characterized by comprising a furnace body (1), wherein one end of the furnace body (1) is opened and is detachably provided with a sealing cover (2), the inner wall of the other end of the furnace body is embedded with a layer of guide sleeve (3), the region between the guide sleeve (3) and the open end of the furnace body (1) is a main heating region, a plurality of first heating pipes (4) are embedded in the wall of the main heating region of the furnace body (1) in an annular array manner, heat-conducting rings (5) which are in contact with the first heating pipes (4) are arranged at the inner annular surface of a ring surrounded by the first heating pipes (4), and a circle of heat-conducting fins (6) are arranged on the inner wall of each heat-conducting ring (5); two groups of auxiliary heating assemblies are arranged in the furnace body (1), one group of auxiliary heating assemblies is fixedly arranged in the sealing cover (2), the other group of auxiliary heating assemblies is arranged in the guide sleeve (3) in a sliding mode, and an electric telescopic rod (14) for driving one group of auxiliary heating assemblies to transversely move in the guide sleeve (3) is arranged outside the furnace body (1).

2. The rapid heating apparatus of a vacuum quenching furnace as claimed in claim 1, wherein: the heat conducting rings (5) are arranged in the main heating area of the furnace body (1) and are distributed at equal intervals along the length direction of the furnace body (1).

3. The rapid heating apparatus of a vacuum quenching furnace as claimed in claim 1, wherein: the auxiliary heating assembly comprises a heat insulation plate (7) and an auxiliary heating plate (8) fixed on the inner side surface of the heat insulation plate (7) in a fitting manner, a plurality of second heating pipes (9) of a C-shaped structure with sequentially increased sizes are arranged in the auxiliary heating plate (8), and the second heating pipes (9) are sequentially distributed in the auxiliary heating plate (8) from inside to outside.

4. The rapid heating apparatus of a vacuum quenching furnace as claimed in claim 1, wherein: the inner wall of the guide sleeve (3) is provided with a plurality of guide grooves (10) with strip-shaped structures in an annular array, and the periphery of the heat insulation plate (7) of the auxiliary heating assembly in the guide sleeve (3) is correspondingly provided with a guide block (11) which is embedded into the guide grooves (10) in a sliding manner.

5. The rapid heating apparatus of a vacuum quenching furnace as claimed in claim 1, wherein: a moving rod (12) which slides out of the end face of the furnace body (1) is vertically fixed at the center of a heat insulation plate (7) of the auxiliary heating assembly in the guide sleeve (3), and a sealing sliding sleeve (13) for the moving rod (12) to slide through is embedded in the center of the end face of the furnace body (1).

6. The rapid heating apparatus of a vacuum quenching furnace as claimed in claim 1, wherein: the electric telescopic rod (14) is fixed on the outer side wall of the furnace body (1) along the direction parallel to the movable rod (12), and the output end of the electric telescopic rod (14) is fixedly connected with the outer end of the movable rod (12) through a connecting rod (15).

7. The rapid heating apparatus of a vacuum quenching furnace as claimed in claim 1, wherein: and the auxiliary heating plate (8) of the auxiliary heating assembly in the guide sleeve (3) is provided with a bottom frame (16) for placing the material frame at intervals.